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CN-224228397-U - Clutch mechanism of door lock

CN224228397UCN 224228397 UCN224228397 UCN 224228397UCN-224228397-U

Abstract

The utility model discloses a clutch mechanism of a door lock, which comprises a connecting seat, a clutch piece, a clutch pin and a mechanical lock cylinder, wherein one end of the connecting seat is fixedly connected with a handle, the other end of the connecting seat is provided with a mounting groove and a bolt channel communicated with the mounting groove, the clutch piece comprises a clutch part arranged in the mounting groove, the periphery of the clutch part is provided with a pin jack, the periphery of the bolt channel is provided with an electric push rod device, the power output end of the electric push rod device is a push plate, the clutch pin is sleeved with a reset spring and penetrates through the bolt channel, the electric push rod device is used for pushing the clutch pin into the bolt channel, the mechanical lock cylinder comprises an output rod capable of linearly moving under the drive of a key, the output rod is connected with the push plate through a transmission piece, and the output rod can push the clutch pin into the pin jack through the push plate. The user can realize the clutch through mechanical or electric mode, and when one mode became invalid, another mode still can normally work, has improved the reliability and the stability of lock separation and reunion.

Inventors

  • ZHENG JUHUA
  • YU YANZHEN
  • YU YANXUE
  • LIAO HAIQIANG

Assignees

  • 中山市基信锁芯有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (8)

  1. 1. The clutch mechanism of the door lock is characterized by comprising a connecting seat (1), a clutch part (2), a clutch pin (3) and a mechanical lock cylinder (4), wherein one end of the connecting seat (1) is fixedly connected with a handle (5), a mounting groove (11) and a pin channel (12) communicated with the mounting groove (11) are formed in the other end of the connecting seat (1), the clutch part (2) comprises a clutch part (21) placed in the mounting groove (11), a pin jack (22) is formed in the periphery of the clutch part (21), an electric push rod device (6) is arranged on the periphery of the pin channel (12), a push plate (61) is arranged at the power output end of the electric push rod device (6), a reset spring (31) is sleeved on the clutch pin (3) and penetrates through the pin channel (12), the electric push rod device (6) is used for pushing the clutch pin (3) into the pin channel (12), the mechanical lock cylinder (4) comprises an output rod (41) capable of linearly moving under driving of driving the mechanical key, the output rod (41) is connected with the push plate (61) through a transmission part (7), and the output rod (41) can push the clutch pin (61) through the pin (61).
  2. 2. The clutch mechanism of a door lock according to claim 1, wherein the outer side surface of the clutch pin (3) is provided with an annular boss (32) positioned in the bolt passage (12), the opening widths of two ends of the bolt passage (12) are smaller than the outer diameter of the annular boss (32), and the opening widths of two ends of the bolt passage (12) are not smaller than the outer diameter of the clutch pin (3).
  3. 3. The clutch mechanism of a door lock according to claim 1, wherein the connecting seat (1), the clutch pin (3), the electric push rod device (6) and the mechanical lock core (4) are sequentially arranged from top to bottom.
  4. 4. A clutch mechanism of a door lock according to claim 3, wherein the transmission member (7) includes a contact portion (71) for pushing the push plate (61), a connection portion (72) for connecting with the output lever (41), a connection lever (73) connecting the contact portion (71) and the connection portion (72), the connection lever (73) extending in the up-down direction.
  5. 5. The clutch mechanism of a door lock according to claim 4, wherein the connecting portion (72) is provided with a U-shaped opening (74), the output rod (41) sequentially comprises a positioning head (411), a buffer section (412) and a supporting table (413) from top to bottom, the diameter width of the positioning head (411) is larger than the diameter of the U-shaped opening (74), the diameter width of the buffer section (412) is smaller than the diameter of the U-shaped opening (74), the buffer section (412) penetrates through the U-shaped opening (74), and the buffer section (412) is sleeved with a buffer spring, and the outer diameter of the buffer spring (414) is smaller than the outer diameter of the supporting table (413).
  6. 6. The clutch mechanism of a door lock according to claim 4, wherein the contact portion (71) is a flat plate structure in which push plates (61) are parallel.
  7. 7. The clutch mechanism of a door lock according to claim 4, further comprising a fixing base (8), wherein the electric push rod device (6) is mounted on the fixing base (8).
  8. 8. Clutch mechanism for door locks according to claim 7, characterized in that the fixing seat (8) is provided with a mounting hole (81) for the passage of the connecting rod (73).

Description

Clutch mechanism of door lock Technical Field The utility model relates to the field of lockset equipment, in particular to a clutch mechanism of a door lock. Background In the prior art, the door lock with the handle and the lock bolt realize the switching between the mechanical linkage state and the non-linkage state through a clutch mechanism. For example, chinese patent publication No. CN211691894U discloses a clutch, in which a clutch pin is pressed by an electric pushing mechanism, so as to implement engagement between a handle and a latch. In view of the above, the present utility model provides a clutch mechanism for a door lock to solve the above-mentioned problems. Disclosure of utility model In order to overcome the defects of the technology, the utility model provides a clutch mechanism of a door lock, which can drive a clutch pin electrically and mechanically, and when one mode fails, the other mode can still work normally, so that the reliability and stability of the clutch of the door lock are improved. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The clutch mechanism of the door lock comprises a connecting seat, a clutch piece, a clutch pin and a mechanical lock cylinder, wherein one end of the connecting seat is fixedly connected with a handle, the other end of the connecting seat is provided with a mounting groove and a bolt channel communicated with the mounting groove, the clutch piece comprises a clutch part arranged in the mounting groove, a pin jack is arranged on the periphery of the clutch part, an electric push rod device is arranged on the periphery of the bolt channel, a power output end of the electric push rod device is a push plate, a reset spring is sleeved on the clutch pin and penetrates through the bolt channel, the electric push rod device is used for pushing the clutch pin into the bolt channel, the mechanical lock cylinder comprises an output rod capable of linearly moving under the driving of a key, the output rod is connected with the push plate through a transmission piece, and the output rod can push the clutch pin into the pin jack through the push plate. Preferably, the outer side surface of the clutch pin is provided with an annular boss positioned in the bolt channel, the width of openings at two ends of the bolt channel is smaller than the outer diameter of the annular boss, and the width of openings at two ends of the bolt channel is not smaller than the outer diameter of the clutch pin. Preferably, the clutch mechanism is provided with a connecting seat, a clutch pin, an electric push rod device and a mechanical lock cylinder in sequence from top to bottom. Preferably, the driving member includes a contact portion for pushing the push plate, a connection portion for connecting with the output lever, a connection lever connecting the contact portion and the connection portion, the connection lever extending in an up-down direction. Preferably, the connecting portion is provided with a U-shaped opening, the output rod sequentially comprises a positioning head, a buffer section and a supporting table from top to bottom, the diameter width of the positioning head is larger than the caliber of the U-shaped opening, the diameter width of the buffer section is smaller than the caliber of the U-shaped opening, the buffer section penetrates through the U-shaped opening, the buffer section is sleeved with a buffer spring, and the outer diameter of the buffer spring is smaller than the outer diameter of the supporting table. Preferably, the contact part is a flat plate structure with parallel push plates. Preferably, the clutch mechanism further comprises a fixing seat, and the electric push rod device is installed on the fixing seat. Preferably, the fixing base is provided with a mounting hole for the connecting rod to pass through. Compared with the prior art, the utility model has the beneficial effects that: 1. The utility model is provided with the electric push rod device and the mechanical lock cylinder, the electric push rod device can electrically drive the push plate, the mechanical lock cylinder can be connected with the push plate through the transmission piece, the clutch pin can be pushed into the pin jack by the electric push rod device and the mechanical lock cylinder, the clutch piece and the connecting seat can be connected, more clutch modes can be selected for a user, and meanwhile, when one mode fails, the other mode can still work normally, so that the clutch reliability and stability of the door lock are improved. 2. The output rod is sleeved with a buffer spring, and the output rod drives the transmission part and the push plate of the electric push rod device through the buffer spring, so that the impact force on the electric push rod device can be reduced. Meanwhile, when the pin jack cannot be aligned with the bolt channel due to deviation of the position angle of the clutch part, the