CN106996222B

CN106996222B - Antitheft lock body

Info

Publication number: CN106996222B
Application number: CN201710371334.3A
Authority: CN
Inventors: 李善德
Original assignee: Guangdong Biaochen Security Equipment Co ltd
Current assignee: Guangdong Biaochen Security Equipment Co ltd
Priority date: 2017-05-24
Filing date: 2017-05-24
Publication date: 2023-08-04
Anticipated expiration: 2037-05-24
Also published as: CN106996222A

Abstract

The invention relates to an anti-theft lock body, which comprises a shell, wherein a clutch transmission mechanism, a lock bolt mechanism assembly and a latch mechanism assembly are arranged on the shell, and the clutch transmission mechanism comprises a first clutch, a second clutch, a poking traction piece and a traction piece; the first clutch and the second clutch are respectively provided with a pushing piece and a driving shaft sleeve; when the rotating force applied to the driving shaft sleeve is larger than the set value, the driving shaft sleeve and the pushing piece can rotate relatively; the poking traction piece is provided with a poking arm; under the normal use state or the violent damage state, the pulling piece can synchronously rotate or relatively rotate along with the driving shaft sleeve of the first clutch, and the pulling piece can synchronously rotate or relatively rotate along with the driving shaft sleeve. The invention has the advantages that the clutch transmission mechanism is additionally arranged, when the lock body is destroyed by the violence, the clutch transmission mechanism enables the handle arranged on the transmission shaft sleeve to only rotate and can not destroy the internal structure of the lock body forcedly through the handle, thereby realizing the anti-theft purpose.

Description

Antitheft lock body

Technical Field

The invention relates to an anti-theft lock body.

Background

In the prior anti-theft lock, especially the mortise type anti-theft door lock, the anti-theft effect is realized by the protection of a panel and the externally connected lock cylinder. The lock body has no independent anti-theft function, can only be a transmission mechanism which is unlocked and locked by transmission, and can not produce anti-theft effect if the panel is dismounted, and the panel is arranged on the outer surface of the door plate, so that the anti-disassembly and anti-explosion effects are extremely difficult to achieve, and in addition, the damage of the electromagnet is difficult to repair.

Disclosure of Invention

The invention aims to provide an anti-theft lock body capable of preventing violent unlocking.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the anti-theft lock body comprises a shell, wherein a clutch transmission mechanism, a lock bolt mechanism assembly and a bevel bolt mechanism assembly are arranged on the shell, and the anti-theft lock body is characterized in that the clutch transmission mechanism comprises a first clutch, a second clutch, a poking traction plate and a traction plate which are coaxially arranged; the first clutch and the second clutch are respectively provided with a pushing piece and a driving shaft sleeve; when the rotating force applied to the driving shaft sleeve is smaller than a set value, the driving plate and the driving shaft sleeve are in a normal use state, when the rotating force applied to the driving shaft sleeve is larger than the set value, the driving shaft sleeve is in a violent damage state, and the driving shaft sleeve and the driving plate can rotate relatively and are in an idle state; the poking traction piece is sleeved on the transmission shaft sleeve of the first clutch and is provided with a poking arm which is arranged along the poking traction piece in a radial extending way and is used for acting on the lock bolt mechanism assembly; the traction piece is arranged between the first clutch and the second clutch and is used for acting on the inclined tongue mechanism assembly; under the normal use state or the violent damage state, the pulling piece can synchronously rotate or relatively rotate along with the driving shaft sleeve of the first clutch, and the pulling piece can synchronously rotate or relatively rotate along with the driving shaft sleeve.

The invention can be improved by the following scheme:

limiting blocks are respectively arranged on the pushing piece along the axial direction, the shell is provided with arc-shaped limiting grooves corresponding to the limiting blocks and used for limiting the rotating angle of the corresponding pushing piece, and the limiting blocks respectively fall into the corresponding arc-shaped limiting grooves.

Each pushing piece is further provided with a threaded hole for adjusting positioning, and the shell is provided with a corresponding through hole corresponding to the position of each pushing piece where the threaded hole is arranged.

The anti-theft lock body also comprises a lock head mechanism arranged in the shell, and the lock head mechanism comprises a lock head assembly mechanism for implementing unlocking and locking functions; the pulling piece is provided with a linkage arm along the radial direction of the pulling piece, a linkage plate is arranged between the linkage arm and the lock head assembly mechanism, and the linkage plate drives the pulling piece to act on the inclined tongue mechanism assembly in the unlocking and locking actions of the lock head assembly mechanism.

The lock bolt mechanism assembly comprises a lock bolt, a lock bolt seat and a lock bolt linkage mechanism; an interactive push plate is arranged between the toggle arm and the lock plunger linkage mechanism, the interactive push plate is provided with teeth, and in the unlocking and locking actions of the lock head assembly mechanism, the lock head assembly mechanism acts on the teeth to enable the interactive push plate and the lock plunger linkage mechanism to generate linkage to achieve unlocking and locking of the lock plunger.

The side face of the pushing piece is concavely provided with a concave table, the corresponding concave table extends along the circumferential direction of the pushing piece and is provided with two propped top surfaces, the poking traction piece is further provided with a blocking arm extending along the axial direction of the poking traction piece, and the blocking arm extends into the concave tables of the two pushing pieces.

The anti-theft lock body also comprises a motor pushing mechanism, wherein the motor pushing mechanism comprises a motor, a motor traction piece and a sliding piece, the motor traction piece is connected with the traction piece in a linkage way, and the motor pushes the sliding piece to slide so that the motor traction piece is linked with the traction piece; the shell is provided with a motor hole site which can be used for the motor to freely pass through and be installed by the motor at the position corresponding to the motor.

The first clutch and the second clutch are respectively provided with a clutch key and an elastic piece, each pushing piece is provided with a cavity for accommodating a corresponding driving shaft sleeve, the inner wall surface of the cavity is provided with a key groove, two side surfaces of the key groove, which are axially parallel to the pushing pieces, are axial side surfaces, and the two axial side surfaces are obliquely arranged to enable the key groove to be in a flaring shape; the outer wall surface of each transmission shaft sleeve is respectively provided with a concave position in a concave way for corresponding clutch keys to move along the radial direction of the transmission shaft sleeve, and each clutch key is arranged on the corresponding concave position through a corresponding elastic piece; each clutch key is provided with a guide surface which is obliquely arranged between the two opposite side surfaces and the bottom surface; when the rotating force applied to the driving shaft sleeve is smaller than a set value, the corresponding clutch key is clamped on the corresponding key groove under the action of the elastic piece, and the corresponding axial side surface is attached to the guide surface; when the force applied to the rotation of the driving shaft sleeve is larger than a set value, the guide surface slides along the corresponding axial side surface, and the corresponding clutch key is separated from the corresponding key groove under the action of the elastic piece.

The invention has the advantages that: 1. the clutch transmission mechanism is additionally arranged, so that normal use is not affected, and when the lock body is damaged by violent attempts, the clutch transmission mechanism enables the handle arranged on the transmission shaft sleeve to only rotate and can not forcedly damage the internal structure of the lock body through the handle, thereby realizing the anti-theft purpose; 2. the lock head mechanism is completely arranged in the shell, so that the lock head mechanism and the anti-theft lock body are integrated, and can be unlocked or locked by using a key, thereby improving the safety performance; 3. through set up the motor hole site at the casing, made things convenient for the dismouting of motor to change.

Drawings

Fig. 1 is a three-dimensional state schematic diagram of an overall structure of an anti-theft lock body in an embodiment.

Fig. 2 is a schematic diagram of the whole structure of the anti-theft lock body in a front view.

Fig. 3 is a schematic view showing a three-dimensional state of an internal structure of the anti-theft lock body with a part of a housing removed in the embodiment.

Fig. 4 is a schematic view showing an exploded state structure of the components shown in fig. 3.

Fig. 5 is a schematic view of the internal mechanism of the anti-theft lock body when locked.

Fig. 6 is a schematic diagram of the structure of the anti-theft lock body when the lock bolt is opened by the clutch transmission mechanism.

Fig. 7 is a schematic view of the structure of the anti-theft lock body when the lock bolt is opened by the lock head mechanism.

Fig. 8 is a schematic structural view of the antitheft lock body with all the components opened by the lock head mechanism.

Fig. 9 is a three-dimensional state diagram of the whole structure of the clutch transmission mechanism in the embodiment.

Fig. 10 is a three-dimensional state schematic diagram of an exploded state of the clutch transmission in the embodiment.

Fig. 11 is a three-dimensional state schematic diagram of an exploded state of the clutch transmission mechanism (at another view angle) in the embodiment.

Fig. 12 is a three-dimensional state diagram of the overall structure of the first clutch or the second clutch in the embodiment.

Fig. 13 is a three-dimensional state diagram of the exploded state of the first clutch or the second clutch in the embodiment.

Fig. 14 is a schematic view of a longitudinal sectional structure of the first clutch or the second clutch in the embodiment.

Description of the reference numerals

1. A housing; 11. an arc-shaped limit groove; 12. a through hole; 13. a motor hole site;

2. a clutch transmission mechanism; 21. a first clutch;

211. a pushing piece; 2111. a chamber; 2112. a key slot; 2113. a limiting block; 2114. a threaded hole; 2115. a concave table;

212. a driving sleeve; 2121. a concave position;

213. a clutch key; 2131 2132, guide surfaces;

214. an elastic member;

22. a second clutch;

23. pulling the traction piece; 231. a pulling arm; 232. a blocking arm;

24. a pulling piece; 241. a linkage arm;

3. a latch mechanism assembly;

31. a lock bolt; 32. a latch seat; 33. a lock bolt linkage mechanism; 34. an interactive push plate; 341. tooth positions;

4. a latch mechanism assembly;

5. a lock mechanism; 51. a linkage plate;

6. a motor pushing mechanism; 61. a motor; 62. a motor traction piece; 63. and a slide plate.

Detailed Description

An anti-theft lock body as shown in fig. 1 to 4 comprises a housing 1, and a clutch transmission mechanism 2, a lock bolt mechanism assembly 3 and a latch mechanism assembly 4 are mounted on the housing 1.

As shown in fig. 9 to 14, the clutch transmission mechanism 2 includes a first clutch 21, a second clutch 22, a toggle traction plate 23, and a pulling plate 24, which are coaxially arranged.

The first clutch 21 and the second clutch 22 are identical in structure, and thus, the first clutch will be described in detail below as an example.

Specifically, the first clutch 21 has a push plate 211, an outdrive 212, a clutch key 213, and an elastic member 214. The outdrive 212 may be coupled to the handle mount. The pushing piece 211 is provided with a chamber 2111 for accommodating the driving shaft sleeve 212, the inner wall surface of the chamber 2111 is provided with a key groove 2112, two sides of the key groove 2112 which are axially parallel to the pushing piece 211 are axial sides, and the two axial sides are obliquely arranged so that the key groove 2112 is in a flaring shape; the outer wall surface of the driving shaft sleeve 212 is concavely provided with a concave position 2121 for the clutch key 213 to move along the radial direction of the driving shaft sleeve 212, and the clutch key 213 is arranged on the concave position 2121 through an elastic piece 214; the clutch key 213 has guide surfaces (2131, 2132) provided obliquely between opposite side surfaces and a bottom surface.

The toggle traction plate 23 is sleeved on the driving sleeve 212 of the first clutch 21 and is provided with a toggle arm 231 which is arranged along the radial extension of the toggle traction plate 23 and is used for acting on the latch mechanism assembly 3. And a pulling tab 24 is provided between the first clutch 21 and the second clutch 22 for acting on the latch mechanism assembly 4. The manner in which the toggle arm 231 acts on the latch mechanism assembly 3 and the pull tab 24 acts on the latch mechanism assembly 4 is a conventional linkage, and this embodiment will not be described in detail.

When the rotation force applied to the driving shaft sleeve 212 is smaller than the set value, the driving plate 211 and the driving shaft sleeve 212 are in a normal use state, the corresponding clutch key 213 is clamped on the corresponding key groove 2112 under the action of the elastic piece 214, and the corresponding axial side surface is attached to the guide surface (2131, 2132); in this state, the pulling piece 23 can be pulled to rotate synchronously with the driving sleeve 212 of the first clutch 21, and the pulling piece 24 can be pulled to rotate synchronously with the driving sleeve 212.

When the force applied to the rotation of the outdrive 212 is greater than the set value, the outdrive 212 is in a violently damaged state, and the outdrive 212 and the pushing piece 211 can rotate relatively to be in an idle state, that is, the guide surfaces (2131, 2132) slide along the corresponding axial side surfaces, and the clutch keys 213 are disengaged from the corresponding key grooves 2112 under the action of the elastic members 214. In this state, the toggle traction plate 23 can relatively rotate along with the driving sleeve 212 of the first clutch 21. The pulling plate 24 can rotate relative to the outdrive 212.

The pushing piece 211 is provided with limiting blocks 2113 along the axial direction, the shell 1 is provided with arc-shaped limiting grooves 11 corresponding to the limiting blocks 2113 and used for limiting the rotation angle of the pushing piece 211, and the limiting blocks 2113 fall into the corresponding arc-shaped limiting grooves 11. Each of the pushing pieces 211 is further provided with a threaded hole 2114 for adjusting positioning, and the housing 1 is provided with a corresponding through hole 12 corresponding to the position where each pushing piece 211 is provided with the threaded hole 2114.

Referring to fig. 2, and fig. 5 to 8, the anti-theft lock body further includes a lock head mechanism 5 disposed in the housing 1, the lock head mechanism 5 including a lock head assembly mechanism for performing unlocking and locking functions; the pulling piece 24 is provided with a linkage arm 241 along the radial direction thereof, a linkage plate 51 is arranged between the linkage arm 241 and the lock head assembly mechanism, and the linkage plate 51 drives the pulling piece 24 to act on the latch mechanism assembly 4 in the unlocking and locking actions of the lock head assembly mechanism.

The latch mechanism assembly 3 includes a latch 31, a latch seat 32, and a latch linkage 33; an interactive push plate 34 is arranged between the toggle arm 231 and the lock bolt linkage mechanism 33, the interactive push plate 34 is provided with a tooth position 341, and in the unlocking and locking actions of the lock head assembly mechanism, the lock head assembly mechanism acts on the tooth position 341 to enable the interactive push plate 34 and the lock bolt linkage mechanism 33 to generate linkage so as to unlock and lock the lock bolt 31.

The side surface of the pushing piece 211 is concavely provided with a concave table 2115, the concave table 2115 extends along the circumference of the pushing piece 211 and is provided with two abutting surfaces, the poking traction piece 23 is further provided with a blocking arm 232 extending along the axial direction of the poking traction piece 23, and the blocking arm 232 extends into the concave tables 2115 of the two pushing pieces 211.

The anti-theft lock body further comprises a motor pushing mechanism 6, the motor pushing mechanism 6 comprises a motor 61, a motor traction piece 62 and a sliding piece 63, the motor traction piece 62 is connected with the traction piece 24 in a linkage way, and the motor 61 pushes the sliding piece 63 to slide so that the motor traction piece 62 is linked with the traction piece 24; the position of the shell 1 corresponding to the motor 61 is provided with a motor hole site 13 which can be used for the motor 61 to freely pass through and for the motor 61 to be installed, thereby facilitating the replacement of the motor 61.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention are included in the scope of the present invention.

Claims

1. The anti-theft lock body comprises a shell, wherein a clutch transmission mechanism, a lock bolt mechanism assembly and a bevel bolt mechanism assembly are arranged on the shell, and the anti-theft lock body is characterized in that the clutch transmission mechanism comprises a first clutch, a second clutch, a poking traction plate and a traction plate which are coaxially arranged; the first clutch and the second clutch are respectively provided with a pushing piece and a driving shaft sleeve; when the rotating force applied to the driving shaft sleeve is smaller than a set value, the driving plate and the driving shaft sleeve are in a normal use state, when the rotating force applied to the driving shaft sleeve is larger than the set value, the driving shaft sleeve is in a violent damage state, and the driving shaft sleeve and the driving plate can rotate relatively and are in an idle state; the poking traction piece is sleeved on the transmission shaft sleeve of the first clutch and is provided with a poking arm which is arranged along the radial extension of the poking traction piece and is used for acting on the lock bolt mechanism assembly, the side surface of the pushing piece is concavely provided with a concave table, the corresponding concave table extends along the circumferential direction of the pushing piece and is provided with two propping surfaces, the poking traction piece is also provided with a blocking arm which extends along the axial direction of the poking traction piece, and the blocking arm extends into the concave tables of the two pushing pieces; the traction piece is arranged between the first clutch and the second clutch and is used for acting on the inclined tongue mechanism assembly; under the normal use state or the violent damage state, the pulling piece can synchronously rotate or relatively rotate along with the driving shaft sleeve of the first clutch, and the pulling piece can synchronously rotate or relatively rotate along with the driving shaft sleeve.

2. An anti-theft lock according to claim 1, wherein: limiting blocks are respectively arranged on the pushing piece along the axial direction, the shell is provided with arc-shaped limiting grooves corresponding to the limiting blocks and used for limiting the rotating angle of the corresponding pushing piece, and the limiting blocks respectively fall into the corresponding arc-shaped limiting grooves.

3. An anti-theft lock according to claim 2, wherein: each pushing piece is further provided with a threaded hole for adjusting positioning, and the shell is provided with a corresponding through hole corresponding to the position of each pushing piece where the threaded hole is arranged.

4. An anti-theft lock according to claim 1, wherein: the anti-theft lock body also comprises a lock head mechanism arranged in the shell, and the lock head mechanism comprises a lock head assembly mechanism for implementing unlocking and locking functions; the pulling piece is provided with a linkage arm along the radial direction of the pulling piece, a linkage plate is arranged between the linkage arm and the lock head assembly mechanism, and the linkage plate drives the pulling piece to act on the inclined tongue mechanism assembly in the unlocking and locking actions of the lock head assembly mechanism.

5. The antitheft lock of claim 4 wherein: the lock bolt mechanism assembly comprises a lock bolt, a lock bolt seat and a lock bolt linkage mechanism; an interactive push plate is arranged between the toggle arm and the lock plunger linkage mechanism, the interactive push plate is provided with teeth, and in the unlocking and locking actions of the lock head assembly mechanism, the lock head assembly mechanism acts on the teeth to enable the interactive push plate and the lock plunger linkage mechanism to generate linkage to achieve unlocking and locking of the lock plunger.

6. An anti-theft lock according to claim 1, wherein: the anti-theft lock body also comprises a motor pushing mechanism, wherein the motor pushing mechanism comprises a motor, a motor traction piece and a sliding piece, the motor traction piece is connected with the traction piece in a linkage way, and the motor pushes the sliding piece to slide so that the motor traction piece is linked with the traction piece; the shell is provided with a motor hole site which can be used for the motor to freely pass through and be installed by the motor at the position corresponding to the motor.

7. An anti-theft lock according to any one of claims 1 to 6, wherein: the first clutch and the second clutch are respectively provided with a clutch key and an elastic piece, each pushing piece is provided with a cavity for accommodating a corresponding driving shaft sleeve, the inner wall surface of the cavity is provided with a key groove, two side surfaces of the key groove, which are axially parallel to the pushing pieces, are axial side surfaces, and the two axial side surfaces are obliquely arranged to enable the key groove to be in a flaring shape; the outer wall surface of each transmission shaft sleeve is respectively provided with a concave position in a concave way for corresponding clutch keys to move along the radial direction of the transmission shaft sleeve, and each clutch key is arranged on the corresponding concave position through a corresponding elastic piece; each clutch key is provided with a guide surface which is obliquely arranged between the two opposite side surfaces and the bottom surface; when the rotating force applied to the driving shaft sleeve is smaller than a set value, the corresponding clutch key is clamped on the corresponding key groove under the action of the elastic piece, and the corresponding axial side surface is attached to the guide surface; when the force applied to the rotation of the driving shaft sleeve is larger than a set value, the guide surface slides along the corresponding axial side surface, and the corresponding clutch key is separated from the corresponding key groove under the action of the elastic piece.