Cabinet door cable lock

Abstract

The utility model provides a cabinet door cable lock which comprises a lock shell, a conical guide groove is formed in the lock shell, the lock shell is provided with a cable channel which passes through the narrow end and the wide end of the conical guide groove and penetrates through the lock shell, an extrusion block is arranged in the conical guide groove, and the cable channel passes through the tooth surface of the extrusion block. One end of each extrusion block is provided with an elastic piece which enables the extrusion block to be tightly pressed towards the narrow end direction of the conical guide groove, the lock further comprises a driving block used for pushing the extrusion blocks to move towards the wide end direction of the conical guide groove, the number of the extrusion blocks is one or two symmetrically-arranged extrusion blocks, and the lock shell is provided with a first fixing piece; and a cable is further included, a second fixing piece is arranged at one end of the cable, the other end of the cable penetrates through the cable channel of the lock shell to be locked with the tooth face of the extrusion block in a matched mode, and when the driving block pushes the extrusion block to move towards the wide end of the conical guide groove, the tooth face is away from the cable to unlock the cable. The utility model has the advantages of being applicable to the cabinet body with nail structures on both sides of the cabinet door, and utilizing the nail structures on both sides of the cabinet body as attachment points to limit the opening of the cabinet door.

Description

Technical Field

[0001] The utility model relates to the field of locks, and particularly relates to a cabinet door cable lock. Background Art

[0002] Generally, a cable lock uses a steel cable lock as a flexible part and cooperates with a one-way locking mechanism for locking, generally locking some perforated parts to prevent them from unlocking.

[0003] For locking the cabinet door of a container, generally, a traditional padlock is used to lock the cabinet door handle, or a traditional cable lock is used to lock the cabinet door handle.

[0004] Therefore, in response to market demand, it is necessary to develop a cable lock with better adaptability, departing from the traditional locking method, to improve market competitiveness and applicability. Summary of the Utility Model

[0005] Based on the above problems, the purpose of the utility model is to provide a cabinet door cable lock that can be applied to a cabinet body with nail structures on both sides of the cabinet door, using the nail structures on both sides of the cabinet body as attachment points to restrict the opening of the cabinet door.

[0006] For the above problems, the following technical solution is provided: A cabinet door cable lock includes a lock shell. A conical guiding groove is provided inside the lock shell. The lock shell is provided with a cable passage that passes through the narrow end and the wide end of the conical guiding groove and penetrates the lock shell. An extrusion block is provided in the conical guiding groove. The cable passage passes through the tooth surface of the extrusion block. One end of the extrusion block is provided with an elastic member to urge it towards the narrow end of the conical guiding groove. It also includes a driving block for pushing the extrusion block towards the wide end of the conical guiding groove. The extrusion block is one piece or two pieces arranged symmetrically. The lock shell is provided with a first fixing member; it also includes a cable. One end of the cable is provided with a second fixing member. The other end of the cable passes through the cable passage of the lock shell and is adapted and locked with the tooth surface of the extrusion block. When the driving block pushes the extrusion block towards the wide end of the conical guiding groove, the tooth surface moves away from the cable to unlock the cable.

[0007] In the above structure, the elastic member is a spring, located on one side of the wide end of the conical guiding groove, used to provide a thrust to the extrusion block towards the narrow end of the conical guiding groove. When the cable passes through the extrusion block from the cable passage, it will assist in pushing the extrusion block towards the wide end of the conical guiding groove to ensure the passing of the cable. When the cable stops moving or moves in the reverse direction, the extrusion block moves towards the narrow end of the conical guiding groove under the push of the elastic member and uses the tooth surface to bite the cable, thereby preventing the cable from slipping out and achieving the locking purpose; the driving block is controlled to rotate by a lock core or other structures, and when unlocking is required, it pushes the extrusion block towards the wide end of the conical guiding groove to unlock the cable; the first fixing member is used to adapt to the nail structure on one side of the cabinet body, and the second fixing member is adapted to the nail structure on the other side of the cabinet body. When the cable is tensioned, the opening of the cabinet door can be restricted.

[0008] The present utility model is further configured such that the first fixing member is provided with a first hanging buckle groove, and a first anti - detachment groove which is connected thereto and has a width smaller than that of the first hanging buckle groove is provided on a side of the first hanging buckle groove away from the cable and close to the second fixing member; the second fixing member is provided with a second hanging buckle groove, and a second anti - detachment groove which is connected thereto and has a width smaller than that of the second hanging buckle groove is provided on a side of the second hanging buckle groove away from the lock housing.

[0009] In the above structure, the stud - like structure on one side of the cabinet body enters from the first hanging buckle groove and then slides into the first anti - detachment groove to prevent detachment; the stud - like structure on the other side of the cabinet body enters from the second hanging buckle groove and then slides into the second anti - detachment groove to prevent detachment.

[0010] The present utility model is further configured such that the first fixing member includes a first connecting member connected to the lock housing, and a second connecting member which is parallel to and spaced from the first connecting member; the first connecting member and the second connecting member are connected by a third connecting member on a side away from the cable and close to the second fixing member, so that the first fixing member forms a first hook - shaped portion, the hook door of the first hook - shaped portion faces the second fixing member, and the first hanging buckle groove and the first anti - detachment groove are located on the second connecting member.

[0011] In the above structure, the first hook - shaped portion can increase the dominance during use, enabling it to cope with more fixing points, or being hung on the cable of other cable locks to achieve multi - directional fixation.

[0012] The present utility model is further configured such that the first connecting member is hinged to the lock housing.

[0013] In the above structure, the first connecting member can also be fixedly connected to the lock housing.

[0014] The present utility model is further configured such that one end of the cable passes through the second fixing member and a second anti - detachment head is provided at its end.

[0015] In the above structure, the cable is a steel wire rope, the second anti - detachment head is made of metal, and is fixed to the end of the cable by interference fit or fixedly connected to the cable by casting.

[0016] The present utility model is further configured such that the other end of the cable passes through the lock housing and a first anti - detachment head is provided at its end.

[0017] In the above structure, the cable is a steel wire rope, the first anti - detachment head is made of metal, and is fixed to the end of the cable by interference fit or fixedly connected to the cable by casting; the provision of the first anti - detachment head can prevent the cable from slipping out of the lock housing and being lost.

[0018] The utility model is further configured such that the second fixing member includes a fourth connecting member, and a fifth connecting member parallel to and spaced apart from the fourth connecting member, the middle section of the fourth connecting member is connected to a side of the fifth connecting member close to the lock shell via a sixth connecting member so that the second fixing member forms a second hook-shaped portion, the hook door of the second hook-shaped portion faces away from the lock shell, the second hook groove and the second anti-slip groove are located on the fifth connecting member; the cable is arranged to pass through the sixth connecting member.

[0019] In the above structure, the middle section of the fourth connecting member is connected to the side of the fifth connecting member close to the lock housing through the sixth connecting member so that the second fixing member forms a second hook-shaped portion and the side of the fourth connecting member close to the lock housing can be used as a fulcrum when taking and placing.

[0020] The utility model is further configured as follows: a locking knob is provided outside the lock shell and can be rotated relative to the lock shell, the locking knob is fixedly connected to a driving block in the lock shell, the locking knob is provided with a first padlock portion arranged at intervals along the rotation direction; the lock shell is provided with a second padlock portion arranged at intervals in the circumferential direction around the locking knob; the locking knob forms a first position and a second position along the rotation direction, when the locking knob is in the first position, the driving block controls the extrusion block to move toward the narrow end of the tapered guide groove, and when the locking knob is in the second position, the driving block controls the extrusion block to move toward the wide end of the tapered guide groove; when the locking knob is in the first position, the first padlock portion overlaps with the second padlock portion for the padlock to pass through for locking.

[0021] In the above structure, the locking knob drives the driving block to rotate together with the locking knob by rotating, and the first padlock part and the second padlock part are used to lock the locking knob with the padlock adapter.

[0022] The utility model is further configured such that both the first padlock part and the second padlock part are through holes; and both the first padlock part and the second padlock part are provided with a plurality of groups.

[0023] In the above structure, several groups of padlocks can be hung to achieve multiple verifications when unlocking.

[0024] The utility model is further configured as follows: the drive block is waist-shaped, including a rotation axis and an eccentric axis parallel to and offset from the rotation axis; a wire groove for the cable to pass through is provided at a mid-section position of the rotation axis of the drive block, and the wire groove of the drive block is opened to a position close to the eccentric axis; the drive block is located on the narrow end side of the conical guide groove, and the eccentric side of the drive block is abutted and matched with the end face of the extrusion block.

[0025] In the above structure, the provision of the wire groove can ensure that the cable passes through the wire groove and at the same time, the contact between the driving block and the extrusion block is more uniform.

[0026] Advantages of the present utility model: The elastic member is a spring, located on one side of the wide end of the conical guiding groove, and is used to provide a thrust force for the extrusion block in the direction of the narrow end of the conical guiding groove. When the cable passes through the extrusion block from the cable channel, it will assist in pushing the extrusion block in the direction of the wide end of the conical guiding groove to ensure the passing of the cable. When the cable stops moving or moves in the reverse direction, the extrusion block moves in the direction of the narrow end of the conical guiding groove under the push of the elastic member and bites the cable with the tooth surface, thereby preventing the cable from slipping out and achieving the locking purpose; the driving block is controlled to rotate by a lock core or other structures, and when unlocking is required, it pushes the extrusion block in the direction of the wide end of the conical guiding groove to unlock the cable; the first fixing member is used to adapt to the nailing structure on one side of the cabinet body, and the second fixing member is adapted to the nailing structure on the other side of the cabinet body. When the cable is tensioned, the opening of the cabinet door can be restricted. Description of the Drawings

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0028] Figure 2 is a first exploded three-dimensional structural schematic diagram of the present utility model.

[0029] Figure 3 is an exploded three-dimensional structural schematic diagram of the present utility model.

[0030] Figure 4 For the present utility model Figure 2 is a three-dimensional structural schematic diagram of the second perspective.

[0031] Figure 5 is a fully-sectioned three-dimensional structural schematic diagram of the present utility model when the locking knob and the driving block are in the second position.

[0032] Figure 6 is a fully-sectioned three-dimensional structural schematic diagram of the present utility model when the locking knob and the driving block are in the first position.

[0033] Meanings of the reference numerals in the drawings: 10 - lock housing; 101 - second padlock part; 11 - conical guiding groove; 12 - cable channel; 13 - extrusion block; 131 - tooth surface; 14 - elastic member; 15 - driving block; 151 - axis of rotation; 152 - eccentric axis; 153 - wire groove; 16 - first fixing member; 161 - first hanging buckle groove; 162 - first anti-slip-off groove; 163 - first connecting member; 164 - second connecting member; 165 - third connecting member; 166 - first hook-shaped part; 17 - cable; 171 - second anti-slip-off head; 172 - first anti-slip-off head; 18 - second fixing member; 181 - second hanging buckle groove; 182 - second anti-slip-off groove; 183 - fourth connecting member; 184 - fifth connecting member; 185 - sixth connecting member; 186 - second hook-shaped part; 19 - locking knob; 191 - first padlock part. Detailed Embodiments

[0034] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0035] Referring to Figures 1 to 6 , as Figures 1 to 6 shown, a cable lock for a cabinet door includes a lock housing 10. A conical guiding groove 11 is provided inside the lock housing 10. The lock housing 10 is provided with a cable passage 12 that passes through the narrow end and the wide end of the conical guiding groove 11 and penetrates the lock housing 10. An extrusion block 13 is provided in the conical guiding groove 11. The cable passage 12 passes through the tooth surface 131 of the extrusion block 13. One end of the extrusion block 13 is provided with an elastic member 14 to urge it towards the narrow end direction of the conical guiding groove 11. It further includes a driving block 15 for pushing the extrusion block 13 towards the wide end direction of the conical guiding groove 11. The extrusion block 13 is one piece or two pieces arranged symmetrically. The lock housing 10 is provided with a first fixing member 16; it further includes a cable 17. One end of the cable 17 is provided with a second fixing member 18. The other end of the cable 17 passes through the cable passage 12 of the lock housing 10 and is adapted and locked with the tooth surface 131 of the extrusion block 13. When the driving block 15 pushes the extrusion block 13 towards the wide end direction of the conical guiding groove 11, the tooth surface 131 moves away from the cable 17 to unlock the cable 17.

[0036] In the above structure, the elastic member 14 is a spring, located on one side of the wide end of the conical guiding groove 11, and is used to provide a thrust to the extrusion block 13 towards the narrow end direction of the conical guiding groove 11. When the cable 17 passes through the extrusion block 13 from the cable passage 12, it will assist in pushing the extrusion block 13 towards the wide end direction of the conical guiding groove 11 to ensure the passing of the cable 17. When the cable 17 stops moving or moves in the reverse direction, the extrusion block 13 moves towards the narrow end direction of the conical guiding groove 11 under the push of the elastic member 14 and uses the tooth surface 131 to bite the cable 17, thereby preventing the cable 17 from coming out and achieving the locking purpose; the driving block 15 is controlled to rotate by a lock core (not shown in the figure) or other structures (the locking knob 19 described below). When unlocking is required, the driving block 15 is pushed to move the extrusion block 13 towards the wide end direction of the conical guiding groove 11 to unlock the cable 17; the first fixing member 16 is used to be adapted to the nailing structure on one side of the cabinet body, and the second fixing member 18 is adapted to the nailing structure on the other side of the cabinet body. When the cable 17 is tensioned, the opening of the cabinet door can be restricted.

[0037] In this embodiment, the first fixing member 16 is provided with a first hanging hook groove 161. On the side of the first hanging hook groove 161 away from the cable 17 and on the side where the second fixing member 18 is provided, there is a first anti - detachment groove 162 connected to it and with a width smaller than that of the first hanging hook groove 161; the second fixing member 18 is provided with a second hanging hook groove 181. On the side of the second hanging hook groove 181 away from the lock housing 10, there is a second anti - detachment groove 182 connected to it and with a width smaller than that of the second hanging hook groove 181.

[0038] In the above structure, the nailing structure on one side of the cabinet body enters from the first hanging hook groove 161 and then slides into the first anti - detachment groove 162 to prevent detachment; the nailing structure on the other side of the cabinet body enters from the second hanging hook groove 181 and then slides into the second anti - detachment groove 182 to prevent detachment.

[0039] In this embodiment, the first fixing member 16 includes a first connecting member 163 connected to the lock housing 10, and second connecting members 164 arranged parallel to and spaced from each other with the first connecting member 163. The side of the first connecting member 163 and the second connecting members 164 away from the cable 17 and on the side where the second fixing member 18 is provided are connected by a third connecting member 165 so that the first fixing member 16 forms a first hook - shaped portion 166. The hook door of the first hook - shaped portion 166 faces the second fixing member 18. The first hanging hook groove 161 and the first anti - detachment groove 162 are located on the second connecting member 164.

[0040] In the above structure, the first hook - shaped portion 166 can increase the dominance during use, enabling it to handle more fixing points, or being hung on the cable of other cable locks to achieve multi - directional fixation.

[0041] In this embodiment, the first connecting member 163 is hinged to the lock housing 10.

[0042] In the above structure, the first connecting member 163 can also be fixedly connected to the lock housing 10.

[0043] In this embodiment, one end of the cable 17 passes through the second fixing member 18 and a second anti - detachment head 171 is provided at its end.

[0044] In the above structure, the cable 17 is a steel wire rope, the second anti - detachment head 171 is made of metal, and is fixed to the end of the cable 17 by interference fit or fixedly connected to the cable 17 by casting.

[0045] In this embodiment, the other end of the cable 17 passes through the lock housing 10 and a first anti - detachment head 172 is provided at its end.

[0046] In the above structure, the cable 17 is a steel wire rope, the first anti - detachment head 172 is made of metal, and is fixed to the end of the cable 17 by interference fit or fixedly connected to the cable 17 by casting; the provision of the first anti - detachment head 172 can prevent the cable 17 from slipping out of the lock housing 10 and being lost.

[0047] In this embodiment, the second fixing member 18 includes a fourth connecting member 183, and a fifth connecting member 184 which is parallel to and spaced from the fourth connecting member 183. The middle section of the fourth connecting member 183 is connected to a side of the fifth connecting member 184 close to the lock housing 10 via a sixth connecting member 185, so that the second fixing member 18 forms a second hook portion 186, and the hook door of the second hook portion 186 faces away from the lock housing 10. The second hook groove 181 and the second anti-slip groove 182 are located on the fifth connecting member 184; the cable passes through the sixth connecting member 185.

[0048] In the above structure, the middle section of the fourth connecting member 183 is connected to the side of the fifth connecting member 184 close to the lock housing 10 through the sixth connecting member 185 so that the second fixing member 18 forms a second hook portion 186 while the side of the fourth connecting member 183 close to the lock housing 10 can be used as a fulcrum when taking and placing.

[0049] In this embodiment, the lock shell 10 is provided with a locking knob 19 that can rotate relative to the lock shell 10. The locking knob 19 is fixedly connected to the driving block 15 in the lock shell 10, and the locking knob 19 is provided with a first padlock portion 191 arranged at intervals along the rotation direction; the lock shell 10 is provided with a second padlock portion 101 arranged at intervals in the circumferential direction around the locking knob 19; the locking knob 19 forms a first position and a second position along the rotation direction, and when the locking knob 19 is in the first position, the driving block 15 controls the extrusion block 13 to move toward the narrow end of the tapered guide groove 11, and when the locking knob 19 is in the second position, the driving block 15 controls the extrusion block 13 to move toward the wide end of the tapered guide groove 11; when the locking knob 19 is in the first position, the first padlock portion 191 overlaps with the second padlock portion 101 for the padlock to pass through and lock.

[0050] In the above structure, the locking knob 19 drives the driving block 15 to rotate together by rotating, and the first padlock part 191 and the second padlock part 101 are used to lock the locking knob 19 with the padlock adapter.

[0051] In this embodiment, the first padlock portion 191 and the second padlock portion 101 are both through holes; the first padlock portion 191 and the second padlock portion 101 are both provided with a plurality of groups.

[0052] In the above structure, several groups of padlocks can be hung to achieve multiple verifications when unlocking.

[0053] In this embodiment, the driving block 15 is waist-shaped, including a rotation axis 151 and an eccentric axis 152 that is parallel to and offset from the rotation axis 151. A wire groove 153 for the cable 17 to pass through is provided at the middle position of the rotation axis 151 of the driving block 15, and the wire groove 153 of the driving block 15 is opened to a position close to the eccentric axis 152; the driving block 15 is located on the narrow-end side of the conical guiding groove 11, and the eccentric side of the driving block 15 abuts and fits with the end face of the extrusion block 13.

[0054] In the above structure, the provision of the wire groove 153 can ensure that while the cable 17 passes through the wire groove 153, the force received when the driving block 15 contacts the extrusion block 13 is more uniform.

[0055] The beneficial effects of the present utility model are as follows: The elastic member 14 is a spring and is located on one side of the wide end of the conical guiding groove 11, and is used to provide a thrust force for the extrusion block 13 in the direction of the narrow end of the conical guiding groove 11. When the cable 17 passes through the extrusion block 13 from the cable channel 12, it will assist in pushing the extrusion block 13 to move in the direction of the wide end of the conical guiding groove 11, thereby ensuring the passing of the cable 17. When the cable 17 stops moving or moves in the reverse direction, the extrusion block 13 moves in the direction of the narrow end of the conical guiding groove 11 under the push of the elastic member 14 and uses the tooth surface 131 to bite the cable 17, thereby preventing the cable 17 from coming out and achieving the locking purpose; the driving block 15 is controlled to rotate by a lock core (not shown in the figure) or other structures, and when unlocking is required, it pushes the extrusion block 13 to move in the direction of the wide end of the conical guiding groove 11 to unlock the cable 17; the first fixing member 16 is used to fit with the nailing structure on one side of the cabinet body, and the second fixing member 18 fits with the nailing structure on the other side of the cabinet body. After the cable 17 is tensioned, the opening of the cabinet door can be restricted.

[0056] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present utility model, several improvements and modifications can be made. These improvements and modifications made under the above assumptions should also be regarded as the protection scope of the present utility model.

Claims

1. A cabinet door cable lock, comprising a lock housing (10), wherein a conical guide groove (11) is provided in the lock housing (10), wherein the lock housing (10) is provided with a cable passage (12) passing through the narrow end and the wide end of the conical guide groove (11) and penetrating the lock housing (10), wherein an extrusion block (13) is provided in the conical guide groove (11), wherein the cable passage (12) passes through a tooth surface (131) of the extrusion block (13), wherein an elastic member (14) is provided at one end of the extrusion block (13) so as to press the extrusion block (13) toward the narrow end of the conical guide groove (11), and wherein the drive block (15) is used to push the extrusion block (13) toward the wide end of the conical guide groove (11), wherein the extrusion block (13) is one piece or two pieces symmetrically arranged, and wherein: The lock housing (10) is provided with a first fixing member (16); and further comprises a cable (17), one end of the cable (17) being provided with a second fixing member (18), the other end of the cable (17) passing through the cable channel (12) of the lock housing (10) and being adapted and locked with the tooth surface (131) of the extrusion block (13), and when the drive block (15) pushes the extrusion block (13) to move toward the wide end of the conical guide groove (11), the tooth surface (131) moves away from the cable (17) to unlock the cable (17).

2. A cabinet door cable lock according to claim 1, characterized in that: The first fixing member (16) is provided with a first hook groove (161); a side of the first hook groove (161) away from the cable (17) where the second fixing member (18) is provided with a first anti-slip groove (162) connected thereto and having a width smaller than the first hook groove (161); the second fixing member (18) is provided with a second hook groove (181); a side of the second hook groove (181) away from the lock housing (10) is provided with a second anti-slip groove (182) connected thereto and having a width smaller than the second hook groove (181).

3. A cabinet door cable lock according to claim 2, characterized in that: The first fixing member (16) comprises a first connecting member (163) connected to the lock housing (10), and a second connecting member (164) parallel to and spaced from the first connecting member (163). The first connecting member (163) and the second connecting member (164) are connected via a third connecting member (165) at a side of the cable (17) on which the second fixing member (18) is provided so as to form a first hook-shaped portion (166) of the first hook-shaped portion (166). The hook door of the first hook-shaped portion (166) faces the second fixing member (18). The first hook groove (161) and the first anti-slip groove (162) are located on the second connecting member (164).

4. A cabinet door cable lock according to claim 3, characterized in that: The first connecting member (163) is hinged to the lock housing (10).

5. The cabinet door cable lock according to claim 1, characterized in that: One end of the cable (17) passes through the second fixing member (18), and a second anti-slip head (171) is provided at the end thereof.

6. A cabinet door cable lock according to claim 5, characterized in that: The other end of the cable (17) passes through the lock housing (10) and is provided with a first anti-slip head (172) at the end.

7. The cabinet door cable lock according to claim 2, characterized in that: The second fixing member (18) comprises a fourth connecting member (183) and a fifth connecting member (184) which is parallel to and spaced from the fourth connecting member (183); the middle section of the fourth connecting member (183) is connected to a side of the fifth connecting member (184) close to the lock housing (10) via a sixth connecting member (185) so that the second fixing member (18) forms a second hook-shaped portion (186); the hook door of the second hook-shaped portion (186) faces away from the lock housing (10); the second hook groove (181) and the second anti-slip groove (182) are located on the fifth connecting member (184); and the cable (17) is arranged to pass through the sixth connecting member (185).

8. The cabinet door cable lock according to claim 1, characterized in that: The lock housing (10) is provided with a locking knob (19) that can rotate relative to the lock housing (10), the locking knob (19) is fixedly connected to a driving block (15) in the lock housing (10), the locking knob (19) is provided with a first padlock portion (191) arranged at intervals along the rotation direction; the lock housing (10) is provided with a second padlock portion (101) arranged at intervals in a circumferential direction around the locking knob (19); the locking knob (19) forms a first position and a second position along the rotation direction; when the locking knob (19) is located at the first position, the driving block (15) controls the extrusion block (13) to move toward the narrow end of the conical guide groove (11); when the locking knob (19) is located at the second position, the driving block (15) controls the extrusion block (13) to move toward the wide end of the conical guide groove (11); when the locking knob (19) is located at the first position, the first padlock portion (191) overlaps with the second padlock portion (101) for the padlock to pass through and lock.

9. The cabinet door cable lock according to claim 8, characterized in that: The first padlock part (191) and the second padlock part (101) are both through holes; and the first padlock part (191) and the second padlock part (101) are both provided with a plurality of groups.

10. The cabinet door cable lock according to claim 1, characterized in that: The driving block (15) is waist-shaped, comprising a rotation axis (151) and an eccentric axis (152) parallel to and offset from the rotation axis (151); a wire groove (153) for the cable (17) to pass through is provided at a mid-section of the rotation axis (151) of the driving block (15); the wire groove (153) of the driving block (15) is opened to a position close to the eccentric axis (152); the driving block (15) is located on the narrow end side of the conical guide groove (11); the eccentric side of the driving block (15) is abutted against and matched with the end surface of the extrusion block (13).

Images