Magnetic attraction pre-locking chain lock
By introducing a pre-lock cavity and pre-lock components into the chain lock, and utilizing the cooperation of magnetic force and steel balls, the lock head is stabilized and pre-locked, solving the problem of difficulty in locking existing chain locks and improving locking efficiency and ease of operation. .
Patent Information
- Application Number
- CN202421127029.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-22
AI Technical Summary
When the existing chain is locked in a suspended state, the columnar plug is prone to fall off from the lock hole, resulting in difficulty in locking and affecting efficiency.
A magnetic pre-locking chain lock is designed. By adding a pre-lock cavity and a pre-lock assembly to the lock core assembly, the lock head is pre-positioned and locked using the cooperation of the magnetic block and steel balls to prevent it from leaving the lock hole.
It achieves stable pre-locking of the lock head, avoids the problem of falling off in the lock hole, and improves locking efficiency and operational convenience.
Smart Images
Figure CN222350475U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, and more specifically, to a magnetic pre-locking chain lock. Background Art
[0002] Chain lock is a common lock, which is often used on non-motorized vehicles such as bicycles and two-wheeled electric vehicles. Existing chain locks usually include a lock body and a chain body formed by a plurality of interlocking iron rings. The lock body includes a lock core assembly, a lock gate and a lock body shell. The lock core assembly includes a cylindrical lock core shell and a cylindrical lock core. The lock core is rotatably arranged in the lock core shell. One end of the chain body is fixedly connected to the lock body, and the other end is connected to a columnar plug. The lock body shell is provided with a lock hole that matches the cross section of the columnar plug. When the lock is unlocked with a suitable key, the lock core rotates in the lock core shell, and the lock gate is driven to unlock or lock through the rotation of the lock core.
[0003] During use, the chain lock is usually in a suspended state. When the cylindrical plug is inserted into the lock hole on the lock body, before the lock cylinder is operated to close the lock gate, the cylindrical plug is easy to fall off from the lock hole, making it difficult to lock and affecting the locking efficiency. In order to solve this problem, the present application proposes a chain lock with a pre-locking function. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a chain lock with a pre-locking function.
[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a magnetic pre-locked chain lock, comprising a chain body and a lock body, the lock body comprising a lock core assembly and a lock body shell, the lock core assembly comprising a tubular lock core shell and a cylindrical lock core, the lock core being rotatably arranged in the lock core shell, one end of the chain body being connected to the lock body, and the other end being provided with a lock head, the lock core shell being provided with a lock hole, the lock head being insertable into the lock hole, a locking cavity being provided on one side of the lock hole, the lock core being located in the locking cavity, the lock core comprising a rotating end and a contact end, the contact end being provided with an arc groove, and a ball bearing being contacted at the end of the contact end, an annular groove matching the ball bearing being provided on the lock head, a pre-locking cavity being provided on the other side of the lock hole, and a pre-locking assembly being provided in the pre-locking cavity.
[0006] The utility model is further configured as follows: the pre-locking cavity includes an inclined guide groove and a slide groove located at the tail end of the guide groove, a rolling-matching steel ball is provided in the guide groove, a retractable pre-locking piece is inserted in the slide groove, the tail end of the pre-locking piece is located in the slide groove, and is provided with a magnetic block, and the other end extends outside the slide groove.
[0007] The utility model is further configured as follows: the pre-locking member comprises a pressing end and a magnetic end, the pressing end is located outside the slide slot and is sleeved with a spring, and the magnetic block is located on the magnetic end.
[0008] The utility model is further configured as follows: a retaining ring is provided on the pressing end, one end of the spring is in conflict with the retaining ring, and the other end is in conflict with the opening of the sliding groove.
[0009] By adopting the above technical solution, a pre-locking component is added. When the lock core component has not limitedly locked the lock head, the pre-locking component pre-positions the lock head to prevent the lock head from arbitrarily escaping from the lock hole. The lock core component is then operated to lock the lock head, which has the advantages of convenient operation and high locking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a partial structural section of the utility model Figure 1 ;
[0011] Figure 2 This is a partial structural section of the utility model Figure 2 ;
[0012] Figure 3 It is a schematic diagram of the lock core structure;
[0013] Figure 4 It is a schematic diagram of the structure of the utility model.
[0014] 1. Chain body; 2. Lock body; 3. Lock core assembly; 30. Lock core; 300. Rotating end; 301. Resistance end; 302. Arc groove; 303. Ball; 4. Lock body shell; 40. Lock hole; 41. Pre-locking cavity; 410. Guide groove; 411. Slide groove; 42. Locking cavity; 5. Pre-locking assembly; 50. Steel ball; 51. Pre-locking piece; 52. Magnetic block; 53. Pressing end; 54. Magnetic end; 55. Spring; 56. Retaining ring; 6. Lock head; 60. Annular groove. DETAILED DESCRIPTION
[0015] Reference Figures 1 to 4 The utility model is further described in detail.
[0016] A magnetic pre-locked chain lock, comprising a chain body 1 and a lock body 2, wherein the lock body 2 comprises a lock core assembly 3 and a lock body shell 4, wherein the lock core assembly 3 comprises a cylindrical lock core 30 shell and a cylindrical lock core 30, wherein the lock core 30 is rotatably arranged in the lock core 30 shell, wherein one end of the chain body 1 is connected to the lock body 2, and the other end is provided with a lock head 6, wherein the lock core 30 shell is provided with a lock hole 40, wherein the lock head 6 can be inserted into the lock hole 40, wherein the lock core 30 shell is provided with a lock hole 40, wherein the lock core ... core 6, wherein the lock core 6 can be inserted into the lock hole 40, wherein the lock core 30 shell is provided with a lock core 6, wherein the lock core 30 shell is provided with a lock core 6, wherein the lock core A locking cavity 42 is provided on one side of the lock hole 40, and the lock core 30 is located in the locking cavity 42. The lock core 30 includes a rotating end 300 and a contact end 301. The contact end 301 has an arc groove 302, and a ball 303 is abutted at the end of the contact end 301. The lock head 6 is provided with an annular groove 60 adapted to the ball 303. A pre-locking cavity 41 is provided on the other side of the lock hole 40, and a pre-locking component 5 is provided in the pre-locking cavity 41.
[0017] The pre-locking cavity 41 includes an inclined guide groove 410 and a slide groove 411 located at the tail end of the guide groove 410. A rolling-matching steel ball 50 is provided in the guide groove 410. A retractable pre-locking member 51 is inserted in the slide groove 411. The tail end of the pre-locking member 51 is located in the slide groove 411 and is provided with a magnetic block 52, and the other end extends outside the slide groove 411. The pre-locking member 51 includes a pressing end 53 and a magnetic end 54. The pressing end 53 is located outside the slide groove 411 and is sleeved with a spring 55. The magnetic block 52 is located on the magnetic end 54. A retaining ring 56 is provided on the pressing end 53. One end of the spring 55 conflicts with the retaining ring 56, and the other end conflicts with the opening of the slide groove 411.
[0018] Working principle: Before locking the lock, first press the pre-locking piece 51 to make the magnetic end 54 move toward the bottom direction of the slide groove 411, and the steel ball 50 is attracted by the magnetic block 52 and moves to the tail end of the guide groove 410, then the lock head 6 is inserted into the lock hole 40 of the lock body shell 4, and the force is stopped. The pre-locking piece 51 is reset by the spring 55, and the magnetic block 52 is away from the steel ball 50. The steel ball 50 slides to the head end along the inclined surface of the guide groove 410, and partially slides out of the guide groove 410 and is stuck in the annular groove 60 of the lock head 6. The steel ball 50 pre-positions the lock head 6 to prevent the lock head 6 from escaping from the lock hole 40. Then, by operating the lock core 30, the end of the contact end 301 contacts the ball 303, and the ball 303 is stuck in the annular groove 60 of the lock head 6, thereby locking the lock head 6. It has the advantages of convenient operation and high work efficiency.
[0019] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A magnetic pre-locking chain lock, comprising a chain body and a lock body, wherein the lock body comprises a lock core assembly and a lock body shell, wherein the lock core assembly comprises a cylindrical lock core shell and a cylindrical lock core, wherein the lock core is rotatably arranged in the lock core shell, wherein one end of the chain body is connected to the lock body, and the other end is provided with a lock head, wherein the lock core shell is provided with a lock hole, wherein the lock head can be inserted into the lock hole, wherein the chain body comprises a lock core assembly and a lock core assembly, wherein the lock core assembly comprises a cylindrical lock core shell and a cylindrical lock core ... A locking cavity is provided on one side of the lock hole, and the lock core is located in the locking cavity. The lock core includes a rotating end and a contact end. The contact end is provided with an arc groove, and a ball is abutted at the end of the contact end. An annular groove matching the ball is provided on the lock head. A pre-locking cavity is provided on the other side of the lock hole, and a pre-locking component is provided in the pre-locking cavity.
2. A magnetic pre-locking chain lock according to claim 1, characterized in that: The pre-locking cavity includes an inclined guide groove and a slide groove located at the tail end of the guide groove. A rolling steel ball is provided in the guide groove. A retractable pre-locking part is inserted in the slide groove. The tail end of the pre-locking part is located in the slide groove and is provided with a magnetic block, and the other end extends outside the slide groove.
3. A magnetic pre-locking chain lock according to claim 2, characterized in that: The pre-locking component comprises a pressing end and a magnetic end, wherein the pressing end is located outside the sliding groove and is sleeved with a spring, and the magnetic block is located on the magnetic end.
4. The magnetic pre-locking chain lock according to claim 3, characterized in that: A retaining ring is arranged on the pressing end, one end of the spring contacts the retaining ring, and the other end contacts the opening of the sliding groove.