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CN-117418755-B - Door opening and closing anti-theft device

CN117418755BCN 117418755 BCN117418755 BCN 117418755BCN-117418755-B

Abstract

The invention relates to a door opening and closing anti-theft device, which comprises a shell arranged in a door pocket, wherein a limiting piece is connected in a sliding manner in the shell, the limiting piece is in an L-shaped structure, a vertical section of the limiting piece is in sliding connection in the shell, a horizontal section of the limiting piece is arranged outside the shell, a through hole is formed in the outer end face of the shell, a limiting bulge is arranged at the bottom of the through hole, a straight sliding groove and an arc sliding groove are respectively formed in the vertical section of the limiting piece, the length direction of the straight sliding groove is consistent with the axis direction of the through hole, the arc sliding groove is communicated with the straight sliding groove, the arc sliding groove is arranged at the outer side of the straight sliding groove, the limiting bulge is connected in the straight sliding groove or the arc sliding groove in a sliding manner in a clamping manner, the device is only required to be fixedly arranged in the door pocket, and the limiting effect of opening the door can be achieved through pulling the rotating limiting piece through the position change of a limiting convex shaft in the arc sliding groove or the straight sliding groove.

Inventors

  • TANG JIANGUO
  • ZHAO HUI
  • ZENG QINGTAO

Assignees

  • 江苏布朗卓艺家具有限公司

Dates

Publication Date
20260505
Application Date
20231121

Claims (4)

  1. 1. The door opening and closing anti-theft device is characterized by comprising a shell (1) arranged in a door pocket, wherein a limiting piece (2) is connected in the shell (1) in a sliding manner, the limiting piece (2) is arranged in an L-shaped manner, a vertical section (201) of the limiting piece (2) is connected in the shell (1) in a sliding manner, a horizontal section (202) of the limiting piece (2) is arranged outside the shell (1), a through hole (3) is formed in the outer end surface of the shell (1), a limiting bulge (4) is formed in the bottom of the through hole (3), a straight sliding groove (5) and an arc sliding groove (6) are respectively formed in the vertical section (201) of the limiting piece (2), the length direction of the straight sliding groove (5) is consistent with the axis direction of the through hole (3), the arc sliding groove (6) is connected with the straight sliding groove (5), the arc sliding groove (6) is arranged outside the straight sliding groove (5), the limiting bulge (4) is connected in a sliding manner in the sliding groove (5) or the arc sliding groove (6), when the door is required to be opened, the inside the door is required to be opened, the limiting piece (202) is required to be opened towards the horizontal section, and the limiting piece (202) cannot be opened when the door is required to be opened, the horizontal section of the door is required to be opened, and the door is limited to be opened, and the door is required to be opened, the limiting bulge (4) is arranged in the straight sliding groove (5), and the horizontal section (202) of the limiting piece (2) is not positioned on one side of the door, so that a limiting effect cannot be formed on the door.
  2. 2. The door opening and closing anti-theft device according to claim 1, wherein the free end of the vertical section (201) of the limiting piece (2) is detachably connected with a limiting plate (7), a limiting flanging (8) is arranged in the shell (1) positioned at the through hole (3), a compression spring (9) is sleeved on the vertical section (201) of the limiting piece (2) positioned in the shell (1), one end of the compression spring (9) is abutted against the surface of the limiting plate (7), and the other end of the compression spring is abutted against the surface of the limiting flanging (8).
  3. 3. The door opening and closing anti-theft device according to claim 2 is characterized in that the width of the arc chute (6) is consistent with the width of the limit protrusion (4).
  4. 4. A door opening and closing anti-theft device according to any one of claims 1-3 is characterized in that a connecting plate (10) is integrally arranged on the side face of the shell (1), a plurality of connecting holes (11) are formed in the connecting plate (10), and the shell (1) is fixedly connected with a door pocket through bolts penetrating through the connecting holes (11).

Description

Door opening and closing anti-theft device Technical Field The invention belongs to the technical field of door anti-theft locks, and particularly relates to a door opening and closing anti-theft device. Background The utility model discloses a self-locking anti-theft chain, which belongs to the technical field of anti-theft locks and comprises a slide chain and a chain fastener, wherein the slide chain comprises a metal chain, a slide chain fixed end and a slide chain movable end which are respectively arranged at two ends of the metal chain, a sliding groove and a chain fastener sliding end and a chain fastener tail end which are respectively arranged at two ends of the sliding groove are arranged on the chain fastener, and the self-locking anti-theft chain further comprises a self-locking device, wherein the self-locking device at least comprises a self-locking flip and a hinge which is used for connecting the self-locking flip and the chain fastener, and the self-locking flip covers the sliding groove in a self-locking state. The self-locking anti-theft chain can effectively prevent the possibility that the movable end of the slide chain is reversely scratched from the door slot by a tool, thereby increasing the safety of the anti-theft chain, and when the self-locking anti-theft chain is not used, the self-locking flip cover naturally sags under the action of gravity to prevent misoperation, has simple structure, convenient use and clear functional structure, can be used without instruction of a specification, and is particularly suitable for public renting places such as hotels, shared citizens and the like. The utility model provides a hotel among the prior art is with the theftproof chain sets up an mount pad in the door pocket usually, is provided with an mount pad on the door, is connected with each mount pad through theftproof chain both ends, accomplishes the effect of theftproof, and this structure all installs fixing device on door pocket and door, and the installation is loaded down with trivial details, therefore, this scheme aims at providing a door and opens and close anti-theft device, only needs to install anti-theft device in door pocket department, can accomplish the spacing effect of opening to the door. Disclosure of Invention The technical problem to be solved by the invention is that the anti-theft chain for hotels in the prior art is generally provided with a mounting seat in a door pocket, the door is provided with a mounting seat, the anti-theft effect is finished by connecting two ends of the anti-theft chain with the mounting seats, and the structure is required to be provided with fixing devices on the door pocket and the door, so that the mounting process is complicated, and the invention provides the door opening and closing anti-theft device for improving the defects of the door pocket and the door. In order to achieve the above purpose, the invention is realized by the following technical scheme: The utility model provides a door is opened and close anti-theft device, including installing the casing in the door pocket, sliding connection has the locating part in the casing, the locating part is L type setting, and the vertical section of locating part is slided and is pegged graft in the casing, and the horizontal section of locating part is located the casing and sets up, has seted up the through-hole on the casing outer terminal surface, and the through-hole bottom is provided with spacing arch, straight spout and arc spout have been seted up respectively on the vertical section of locating part, the length direction of straight spout is unanimous with the axis direction of through-hole, arc spout is put through with straight spout, and arc spout is located the outside setting of straight spout, spacing protruding slip joint sets up in straight spout or arc spout. As the preferable scheme, the vertical section free end of locating part is dismantled and is connected with the limiting plate, is provided with spacing turn-ups in the casing that is located the through-hole department, when the limiting plate removes to the through-hole department, the limiting plate is contradicted on the spacing turn-ups surface in the casing. As the preferable scheme, the vertical section of locating part that is located the casing has cup jointed compression spring, compression spring one end is contradicted on the limiting plate surface, and the other end is contradicted on spacing turn-ups surface. As a preferable scheme, the width of the arc chute is consistent with the width of the limit protrusion. As a preferable scheme, the side face of the shell is integrally provided with a connecting plate, a plurality of connecting holes are formed in the connecting plate, and the shell is fixedly connected with the door sleeve through bolts penetrating through the connecting holes. Compared with the prior art, the door opening limiting device has the beneficial effects that the device is onl