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CN-122014058-A - Double-lock-core fireproof anti-theft door lock

CN122014058ACN 122014058 ACN122014058 ACN 122014058ACN-122014058-A

Abstract

The invention discloses a double-lock-cylinder fireproof anti-theft door lock which comprises a shell, a first lock cylinder, a second lock cylinder and an inner handle mechanism, wherein a main lock tongue, an upper lock tongue, a lower lock tongue, a safety lock tongue and an inclined lock tongue which can extend and retract are arranged in the shell, the first lock cylinder and the second lock cylinder are vertically inserted into the shell, the inner handle mechanism is arranged on the shell, a first shifting wheel and a second shifting wheel which are arranged in parallel from outside to inside are arranged on the first lock cylinder, the first shifting wheel is driven by a first key, the second shifting wheel is driven by an inner rotary button arranged on the shell, a third shifting wheel is arranged on the second lock cylinder, the third shifting wheel is driven by a second key, the safety lock tongue is driven by a safety rotary button arranged on the shell, and an elastic piece for extending the inclined lock tongue is arranged on the inclined lock tongue. The door lock has excellent anti-theft performance and extremely high safety, not only can be used in departments such as financial places, party authorities, public institutions, museums and the like, but also is suitable for household use.

Inventors

  • JIANG BEILEI
  • JIANG JINGHAI

Assignees

  • 哈尔滨凌海高新技术应用有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (10)

  1. 1. The double-lock-core fireproof anti-theft door lock is characterized by comprising a shell (10), a first lock core (20), a second lock core (30) and an inner handle mechanism (40); a main lock tongue (11), an upper lock tongue (12), a lower lock tongue (13), a safety lock tongue (14) and an inclined lock tongue (15) which can extend and retract are arranged in the shell (10); the first lock cylinder (20) and the second lock cylinder (30) are vertically inserted into the shell (10); the inner handle mechanism (40) is arranged on the shell (10) and can be used for extending and retracting the main lock tongue (11), the upper lock tongue (12) and the lower lock tongue (13) and can also be used for retracting the safety lock tongue (14) and the inclined lock tongue (15); The first lock cylinder (20) is provided with a first shifting wheel (21) and a second shifting wheel (22) which are arranged in parallel from outside to inside, the first shifting wheel (21) is driven by a first key (90) and can be used for extending and retracting the main lock tongue (11) and the upper lock tongue (12) and also can be used for retracting the inclined lock tongue (15), and the second shifting wheel (22) is driven by an inner knob (50) arranged on the shell (10) and can be used for extending and retracting the main lock tongue (11) and the upper lock tongue (12) and also can be used for retracting the lower lock tongue (13), the safety lock tongue (14) and the inclined lock tongue (15); A third thumb wheel (31) is arranged on the second lock cylinder (30), and the third thumb wheel (31) is driven by a second key (91) and can be used for enabling the lower lock tongue (13) to extend and retract; The safety lock tongue (14) is driven by a safety knob (141) arranged on the shell (10), the safety knob (141) can be used for enabling the safety lock tongue (14) to extend and retract, and the inclined lock tongue (15) is provided with an elastic piece (151) for enabling the inclined lock tongue to extend.
  2. 2. The dual lock core fireproof anti-theft door lock according to claim 1, wherein the lower lock tongue (13) is provided with an anti-lock sheet (60), the third thumb wheel (31) can drive the anti-lock sheet (60) to move into an anti-lock state, thereby preventing the lower lock tongue (13) from retracting, and when the anti-lock sheet (60) enters the anti-lock state, the first lock core (20) and the inner handle mechanism (40) cannot release the anti-lock state.
  3. 3. The dual lock core fireproof antitheft door lock of claim 2 wherein the inner handle mechanism (40) comprises an inner handle (41), a first transmission shaft (42) and a transmission tube (43), wherein the inner handle (41) can drive the transmission tube (43) to rotate through the first transmission shaft (42); the transmission pipe (43) is sequentially connected with a first linkage assembly (44), a second linkage assembly (45), a third linkage assembly (46) and a fourth linkage assembly (47) from outside to inside; The first linkage assembly (44) can be respectively linked with the first thumb wheel (21) and the inner handle (41) so as to retract the main lock tongue (11), the upper lock tongue (12) and the oblique lock tongue (15); The second linkage assembly (45) can be respectively linked with the first shifting wheel (21) and the second shifting wheel (22) so as to enable the main lock tongue (11) and the upper lock tongue (12) to extend out, and can be linked with the inner handle (41) so as to enable the main lock tongue (11) and the upper lock tongue (12) to extend and retract; The third linkage assembly (46) can be linked with the inner handle (41) so as to extend and retract the lower lock tongue (13); The fourth linkage assembly (47) can be respectively linked with the second shifting wheel (22) and the inner handle (41) and drives the first linkage assembly (44), the second linkage assembly (45) and the third linkage assembly (46) to move so as to retract the main lock tongue (11), the upper lock tongue (12), the lower lock tongue (13), the safety lock tongue (14) and the inclined lock tongue (15).
  4. 4. The dual lock core fireproof anti-theft door lock according to claim 3, wherein the main lock tongue (11) is provided with a main connecting plate (111) and a main pulling piece (112), the main connecting plate (111) is connected with the main lock tongue (11) and is provided with a first transverse groove (1111), a first chute (1112) and a first pulling rod (1113), the main pulling piece (112) is hinged with the shell (10) through a first hinging shaft (119), the main pulling piece is provided with a second pulling rod (1121) positioned in the first chute (1112), the first hinging shaft (119) is positioned in the first transverse groove (1111), and the first linkage assembly (44) and the second linkage assembly (45) can drive the main pulling piece (112) to rotate; The upper lock tongue (12) is provided with an upper connecting plate (121), an upper poking piece (122) and a top rod (123), the upper connecting plate (121) is connected with the upper lock tongue (12), a second transverse groove (1211) and a third poking rod (1212) are arranged on the upper connecting plate, the upper poking piece (122) is hinged with the shell (10) through a second hinging shaft (129), a first vertical groove (1221) and a first arc-shaped groove (1222) are arranged on the upper poking piece, the second hinging shaft (129) is positioned in the second transverse groove (1211), the third poking rod (1212) is positioned in the first vertical groove (1221), a second chute (1231) and a fourth poking rod (1232) are arranged on the top rod (123), the first poking rod (1113) is positioned in the second chute (1231), and the fourth poking rod (1232) is positioned in the first arc-shaped groove (1222); The lower lock tongue (13) is provided with a lower connecting plate (131) and a lower poking piece (132), the lower connecting plate (131) is connected with the lower lock tongue (13), a third transverse groove (1311) and a third inclined groove (1312) are formed in the lower connecting plate, the lower poking piece (132) is hinged with the shell (10) through a third hinge shaft (139), a fifth poking rod (1321) is arranged on the lower poking piece, the fifth poking rod (1321) is positioned in the third inclined groove (1312), the third hinge shaft (139) is positioned in the third transverse groove (1311), and the third hinge assembly (46) can drive the lower poking piece (132) to rotate; The safety lock tongue (14) is positioned at one end of the shell (10) and is connected with a safety connecting plate (142), a fourth transverse groove (143) and a first shifting opening (144) are formed in the safety connecting plate (142), a limiting shaft (145) and a fourth shifting wheel (146) are arranged on the shell (10), the limiting shaft (145) is positioned in the fourth transverse groove (143), the fourth shifting wheel (146) is hinged with the shell (10) and is connected with the safety knob (141) through a second transmission shaft (147), a transmission plate (148) and a boss (1461) are arranged on the fourth shifting wheel (146), the boss (1461) stretches into the first shifting opening (144), and the fourth linkage assembly (47) can shift the transmission plate (148) to rotate so that the boss (1461) drives the safety lock tongue (14) to retract; The oblique spring bolt (15) is provided with a connecting rod (152), be equipped with butt board (153) on casing (10), elastic component (151) cover is located the outside of connecting rod (152), and butt in oblique spring bolt (15) with between butt board (153), so that oblique spring bolt (15) stretches out, connecting rod (152) are kept away from the tip of oblique spring bolt (15) is equipped with fly leaf (154), first linkage subassembly (44) can stir fly leaf (154) removes, so that oblique spring bolt (15) withdrawal.
  5. 5. The dual-lock-cylinder fireproof anti-theft door lock according to claim 4, wherein the first linkage assembly (44) comprises a first rotating plate (441), a first linkage plate (442) and a first rotating sheet (443), the first rotating plate (441) is sleeved on the transmission tube (43) and is provided with a toggle head (4411) for toggling the movable plate (154), the top of the first linkage plate (442) is hinged with the side edge of the first rotating plate (441), the middle of the first linkage plate is hinged with the first rotating sheet (443), the bottom of the first linkage plate is used for being abutted with the first toggle wheel (21), the first rotating sheet (443) is hinged with the shell (10) through the first hinge shaft (119), and the main toggle sheet (112) is provided with an abutting shaft (1122) which can be abutted with the first rotating sheet (443); The second linkage assembly (45) comprises a second rotating plate (451) and a second linkage plate (452), wherein the second rotating plate (451) is sleeved on the transmission pipe (43) and hinged with the top of the second linkage plate (452), the middle part of the second linkage plate (452) is hinged with the main pulling piece (112), and the bottom of the second linkage plate can be abutted with the first pulling wheel (21) and the second pulling wheel (22); The third linkage assembly (46) comprises a third rotating plate (461), a third linkage plate (462) and a gear (463), wherein the third rotating plate (461) is sleeved on the transmission pipe (43) and hinged with the top of the third linkage plate (462), a first transmission tooth (4621) is arranged at the bottom of the third linkage plate (462), the first transmission tooth (4621) is meshed with the gear (463), the gear (463) is hinged with the shell (10), and a second transmission tooth (1322) meshed with the gear (463) is arranged on the lower poking piece (132); The fourth linkage assembly (47) comprises a fourth rotation plate (471) and a fourth linkage plate (472), the fourth rotation plate (471) is sleeved on the transmission pipe (43) and hinged to the top of the fourth linkage plate (472), an abutting edge (4721) capable of abutting against the second shifting wheel (22) is arranged in the middle of the fourth linkage plate (472), a hook portion (4722) capable of hooking the transmission plate (148) is arranged at the bottom of the fourth linkage plate, a first protruding portion (4711) and a second protruding portion (4712) are arranged on the fourth rotation plate (471), a first shoulder (4412) is arranged on the first rotation plate (441), a second shoulder (4611) is arranged on the third rotation plate (461), and the first protruding portion (4711) can abut against the first shoulder (4412) and the second protruding portion (4712) can abut against the second shoulder (4611).
  6. 6. The dual lock cylinder fireproof antitheft door lock of claim 5, wherein four abutting planes (431) are arranged on the outer side of the transmission pipe (43), four abutting protrusions are arranged on inner rings of the first rotating plate (441), the second rotating plate (451), the third rotating plate (461) and the fourth rotating plate (471), the upper edges of the right abutting protrusions of the first rotating plate (441) and the fourth rotating plate (471) are abutted with the right abutting planes (431), and the lower edges of the right abutting protrusions of the second rotating plate (451) and the third rotating plate (461) are abutted with the right abutting planes (431).
  7. 7. The dual lock cylinder fireproof anti-theft door lock according to claim 5, wherein the lower connecting plate (131) is provided with a limiting pin (1313), the counter lock piece (60) is hinged with the third hinge shaft (139), a clamping groove (601), a second shifting opening (602) and a shifting edge (603) are formed in the counter lock piece (60), the third shifting wheel (31) can extend into the second shifting opening (602) to shift the counter lock piece (60) to rotate, and when the lower connecting plate (131) extends out, the third shifting wheel (31) can be abutted with the shifting edge (603) to shift the counter lock piece (60) to further rotate so that the limiting pin (1313) is matched with the clamping groove (601).
  8. 8. The dual lock core fireproof anti-theft door lock according to claim 7, wherein a third shifting opening (1323) is further arranged on the lower shifting sheet (132), and the third shifting wheel (31) can extend into the third shifting opening (1323) to shift the lower shifting sheet (132) to rotate.
  9. 9. The dual-lock-cylinder fireproof anti-theft door lock according to any one of claims 3 to 7, further comprising an outer handle (92), an outer panel (93) and a power supply, wherein the outer handle (92) is arranged on the outer panel (93), the outer panel (93) is used for being connected with a door, a first lock hole, a second lock hole and a man-machine interaction module (94) are arranged on the outer panel, the first lock hole corresponds to the first lock cylinder (20), the second lock hole corresponds to the second lock cylinder (30), a motor (70) is further arranged between the inner handle (41) and the transmission tube (43), the motor (70) can drive the transmission tube (43) to rotate, the man-machine interaction module (94) is electrically connected with the motor (70), and the power supply is used for supplying power to the man-machine interaction module (94) and the motor (70).
  10. 10. The dual lock cylinder fireproof and anti-theft door lock according to claim 9, wherein the inner handle mechanism (40) further comprises an inner panel (48) for being connected with a door, the motor (70) is located inside the inner panel (48), the inner handle (41), the inner knob (50) and the safety knob (141) are located outside the inner panel (48), and a third lock hole corresponding to the second lock cylinder (30) is further formed in the inner panel (48).

Description

Double-lock-core fireproof anti-theft door lock Technical Field The invention relates to the technical field of hardware locks, in particular to a double-lock-core fireproof anti-theft door lock. Background The door lock of the fireproof burglary-resisting door is used as a core component with dual functions of security and fire control, is widely applied to various scenes such as financial business places, government departments, industrial factory building equipment rooms, warehouses, houses and the like, and the performance of the door lock is directly related to the security of personnel life and property and the burglary-resisting guarantee of property. The fireproof door and the burglary-resisting door in the current market cannot realize the real functions of both fireproof and burglary-resisting, in the burglary-resisting aspect, the existing lock can only be locked in a room, under the condition of no people in the room, the door can not be locked in a way of opening the door through the door outside, after the door body or the peep hole is damaged, the door handle in the room can be operated by using a tool to open the door, in the fireproof aspect, the door is either an electric control lock or a purely mechanical lock, aiming at the mechanical fireproof lock, the room can only be opened by one key through the inner handle to escape, the structure of the inner handle is relatively complex, the connecting piece is more, if the transmission part of the inner handle is damaged at the moment, trapped people can not be opened in other ways to escape, and under the condition of the electric control lock on fire, the electronic components are easy to damage and power failure, and escape is inconvenient. Therefore, the existing fire protection safety is not high. The current fireproof anti-theft lock also has to meet the latest national standard and industry standard, such as the second part of the safety technical requirements of the national standard of fireproof door of GB 12955-2024, the national standard of lockset of GB 21556.2-2025, the anti-theft lock, the industry standard of GA 374-2019, the electronic anti-theft lock and the industry standard of GA/T73-2015, the mechanical anti-theft lock. In conclusion, the existing fireproof burglary-resisting door is locked in the defect of structural design, the function is difficult to consider and the like, and places with high fireproof and burglary-resisting requirements, such as financial places, party authorities, public institutions, museums and other departments, cannot be truly met in fireproof and burglary-resisting aspects. Therefore, a safety door lock with higher fireproof and anti-theft performance is needed to meet the use requirements of the above places. Disclosure of Invention The invention aims to solve the technical problems of overcoming the defects of the prior art and providing the double-lock-core fireproof anti-theft door lock which is convenient for a user to escape, has an anti-theft function and is high in safety. In order to solve the technical problems, the invention adopts the following technical scheme: a double-lock core fireproof anti-theft door lock comprises a shell, a first lock core, a second lock core and an inner handle mechanism; The shell is internally provided with a main lock tongue, an upper lock tongue, a lower lock tongue, a safety lock tongue and an inclined lock tongue, wherein the main lock tongue, the upper lock tongue, the lower lock tongue, the safety lock tongue and the inclined lock tongue are capable of extending and retracting; the first lock cylinder and the second lock cylinder are vertically inserted into the shell, wherein the first lock cylinder is positioned above the second lock cylinder; The inner handle mechanism is arranged on the shell, and can be used for extending and retracting the main lock tongue, the upper lock tongue and the lower lock tongue, and can also be used for retracting the safety lock tongue and the inclined lock tongue; The first lock cylinder is provided with a first shifting wheel and a second shifting wheel which are arranged in parallel from outside to inside, the first shifting wheel is driven by a first key and can be used for extending and retracting the main lock tongue and the upper lock tongue and also can be used for retracting the inclined lock tongue; A third shifting wheel is arranged on the second lock cylinder, is driven by a second key and can be used for enabling the lower lock tongue to extend and retract; the safety lock tongue is driven by a safety knob arranged on the shell, the safety knob can be used for enabling the safety lock tongue to extend and retract, and the inclined lock tongue is provided with an elastic piece for enabling the inclined lock tongue to extend. As a further improvement of the above technical scheme: The lower lock tongue is provided with a reverse locking plate, the third shifting wheel can drive the reverse locking plate to