Vehicle towing hook lock

Abstract

The utility model discloses a vehicle towing hook lock, which relates to the technical field of locks and comprises a first lock body component and a second lock body component. The first lock body assembly and the second lock body assembly are suitable for stretching out, drawing back and locking in the horizontal direction, so that the relative matching position of the first lock body assembly and the second lock body assembly at the vehicle towing hook can be changed in the horizontal direction; the first lock body assembly and the second lock body assembly are also suitable for stretching out, drawing back and locking in the vertical direction, so that the relative matching position of the first lock body assembly and the second lock body assembly at the vehicle towing hook can also be changed in the vertical direction. The utility model mainly solves the problem of how to provide a vehicle towing hook lock with good adaptability for towing hooks of different specifications. The vehicle towing hook lock can adapt to various relative matching positions in the horizontal direction and the vertical direction, has better universality, is effectively adaptive to various towing hooks of different specifications, and saves the development, manufacturing, maintenance and part cost of the vehicle towing hook lock.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a vehicle towing hook lock. Background Art

[0002] A trailer vehicle is a common type of vehicle. For example, a trailer caravan, a trailer truck, a tractor, a trailer work vehicle, a family car / work vehicle with a rear trailer, etc. are all commonly used trailer vehicles.

[0003] The towing mechanism is an important component of a towed vehicle, which is used to connect the tractor and trailer of the towed vehicle so that the tractor can provide traction power for the trailer. The towing mechanism at one end of the trailer is usually set as a towing hook.

[0004] When the tractor and trailer of a towing vehicle are separated, the towing hook on the trailer will be exposed outside the vehicle and can be easily hooked and towed away by the towing mechanism of other tractors, which poses a certain safety risk. Therefore, configuring a lock for the towing hook is one of the commonly used safety precautions.

[0005] A Chinese invention patent publication with publication number CN101193765A, entitled "Coupler Lock," discloses a typical vehicle tow hook lock, comprising: a. a main body configured to engage with at least one surface of a coupler, the main body including a coupler engagement portion; b. a coupler engagement member movably coupled to the main body and configured to engage with a ball cavity of the coupler; and c. a fastening mechanism for fixing a position of the coupler engagement member relative to the main body; wherein the fastening mechanism selectively fixes the position of the coupler engagement member relative to the main body so as to fasten the assembly to the coupler.

[0006] However, the vehicle tow hook lock in the prior art still has the following technical problems:

[0007] The specifications (mainly including shape and size) of tow hooks vary. A single vehicle tow hook lock is difficult to adapt to tow hooks of different specifications. If suitable vehicle tow hook locks are developed separately for the specifications of multiple tow hooks, it will obviously increase the costs of research and development, production, storage, transportation and sales.

[0008] In summary, how to provide a vehicle tow hook lock with good adaptability for tow hooks of different specifications has become one of the problems that need to be solved urgently. Utility Model Content

[0009] The purpose of the utility model is to provide a vehicle tow hook lock, which can be adapted to tow hooks of various specifications and has better adaptability.

[0010] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a vehicle tow hook lock, comprising a first lock body assembly and a second lock body assembly; the first lock body assembly is suitable for being attached to the surface of the vehicle tow hook, and the second lock body assembly is suitable for being connected to the hook body of the vehicle tow hook; the first lock body assembly and the second lock body assembly are suitable for being extended and locked in the horizontal direction, so that the relative matching position of the first lock body assembly and the second lock body assembly at the vehicle tow hook can be changed in the horizontal direction; the first lock body assembly and the second lock body assembly are also suitable for being extended and locked in the vertical direction, so that the relative matching position of the first lock body assembly and the second lock body assembly at the vehicle tow hook can also be changed in the vertical direction.

[0011] In the above technical solution, the first lock body assembly includes a first tow hook mating component and an intermediate mating component, and the first tow hook mating component and the intermediate mating component can be relatively telescoped and locked in the vertical direction; the second lock body assembly includes a main body component and a second tow hook mating component, and the second tow hook mating component is fixedly installed on the main body component; the intermediate mating component of the first lock body assembly and the main body component of the second lock body assembly can be relatively telescoped and locked in the horizontal direction; the first tow hook mating component of the first lock body assembly is suitable for being attached to the surface of the vehicle tow hook, and the second tow hook mating component of the second lock body assembly is suitable for being connected to the hook body of the vehicle tow hook.

[0012] In the above technical solution, the first tow hook mating component of the first lock body assembly is provided with a first pin in the vertical direction; the intermediate mating component of the first lock body assembly is provided with a first socket in the vertical direction; the first pin of the first tow hook mating component can be inserted into the first socket of the intermediate mating component, and the first pin of the first tow hook mating component can slide and lock relative to the first socket of the intermediate mating component.

[0013] In the above technical solution, the first latch of the first tow hook matching component is provided with a plurality of positioning holes along its extension direction, thereby forming a positioning hole group; the intermediate matching component is provided with a fixing hole that penetrates into the first plug hole; after any positioning hole in the positioning hole group of the first latch is aligned with the fixing hole of the intermediate matching component, it can be passed through and locked by the fixing member.

[0014] In the above technical solution, the fixing hole of the intermediate fitting component is configured as a threaded hole or a pin hole.

[0015] In the above technical solution, the intermediate matching component of the first lock body assembly is provided with a second pin in the horizontal direction; the main component of the second lock body assembly is provided with a second socket in the horizontal direction; the second pin of the intermediate matching component can be inserted into the second socket of the main component, and the second pin of the intermediate matching component can slide and lock relative to the second socket of the main component.

[0016] In the above technical solution, the second pin of the intermediate matching component is provided with a positioning tooth group along its extension direction; a lock core is embedded in the main component of the second lock body assembly; the lock core includes a lock tongue, and a key transmission group that can link the lock tongue to move forward and backward; the lock tongue of the lock core passes through the second insertion hole, and when the key transmission group of the lock core is operated, the lock tongue can be linked to move forward and backward to clamp / disengage any tooth groove in the positioning tooth group of the second pin.

[0017] In the above technical solution, the lock tongue of the lock core has elastic reset ability; the key transmission group is provided with a thumb wheel on the inner side of the lock core; when the key transmission group of the lock core is operated to put the key transmission group in a locked state, the thumb wheel of the key transmission group does not apply force to the lock tongue, and the lock tongue of the lock core moves forward and clamps any tooth groove in the positioning tooth group of the second latch; when the key transmission group of the lock core is operated to put the key transmission group in an unlocked state, the thumb wheel of the key transmission group applies force to the lock tongue, causing the lock tongue of the lock core to retreat to disengage from the positioning tooth group of the second latch.

[0018] In the above technical solution, the inner side of the first towing hook matching component of the first lock body assembly is configured as an arc-shaped surface.

[0019] In the above technical solution, the second towing hook matching component of the second lock body assembly is configured as a ball head.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the relative matching positions of the first lock body assembly and the second lock body assembly of the vehicle tow hook lock of the present invention at the vehicle tow hook can be changed in the horizontal direction and the vertical direction respectively, thereby adapting to a variety of relative matching positions in the horizontal direction and the vertical direction, having better versatility, and effectively adapting to a variety of tow hooks of different specifications, saving the development, manufacturing, maintenance and spare parts costs of the vehicle tow hook lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional view of the present invention.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3This is a cross-sectional view of the utility model at the second latch and the lock cylinder.

[0024] Figure 4 This is a structural view of the lock core in the present utility model.

[0025] The accompanying drawings are marked as follows: 1. First lock body assembly; 11. First tow hook matching component; 111. First latch; 112. Positioning hole group; 12. Intermediate matching component; 121. First insertion hole; 122. Fixing hole; 123. Second latch; 124. Positioning tooth group; 2. Second lock body assembly; 21. Main body component; 211. Second insertion hole; 22. Lock core; 221. Lock tongue; 222. Key transmission group; 2221. Dial; 23. Second tow hook matching component. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] This embodiment provides a vehicle tow hook lock that can be used at the tow hook of a towed vehicle (such as a towed RV, a towed truck, a tractor, a towed work vehicle, a family car / work vehicle with a rear tow device, etc.) to lock the tow hook to prevent the tow hook from being stolen.

[0028] See also Figures 1-4 The vehicle tow hook lock of this embodiment includes a first lock body assembly 1 and a second lock body assembly 2. The first lock body assembly 1 is suitable for being attached to the surface of the vehicle tow hook, and the second lock body assembly 1 is suitable for being connected to the hook body of the vehicle tow hook.

[0029] In order to enable the vehicle tow hook lock to adapt to a variety of horizontal relative matching positions, the first lock body assembly 1 and the second lock body assembly 2 are suitable for stretching and locking in the horizontal direction, so that the relative matching position of the first lock body assembly 1 and the second lock body assembly 2 on the towed vehicle can be changed in the horizontal direction.

[0030] In order to enable the vehicle tow hook lock to adapt to a variety of vertical relative matching positions, the first lock body assembly 1 and the second lock body assembly 2 are also suitable for telescoping and locking in the vertical direction, so that the relative matching position of the first lock body assembly 1 and the second lock body assembly 2 on the towed vehicle can also be changed in the vertical direction.

[0031] Specifically, the first lock body assembly 1 includes a first tow hook mating component 11 and an intermediate mating component 12, wherein the first tow hook mating component 11 and the intermediate mating component 12 are both metal components, such as solid stainless steel, and the first tow hook mating component 11 and the intermediate mating component 12 can be relatively telescopic and locked in the vertical direction; the second lock body assembly 2 includes a main body component 21 and a second tow hook mating component 23, the main body component 21 is a metal component, such as solid stainless steel, and the second tow hook mating component 23 is fixedly installed on the main body component 21; the intermediate mating component 12 of the first lock body assembly 1 and the main body component 21 of the second lock body assembly 2 can be relatively telescopic and locked in the horizontal direction; the first tow hook mating component 11 of the first lock body assembly 1 is suitable for being attached to the surface of the vehicle tow hook, and the second tow hook mating component 23 of the second lock body assembly 2 is suitable for being connected to the hook body of the vehicle tow hook.

[0032] Specifically, the first tow hook mating component 11 of the first lock body assembly 1 is provided with a first pin 111 along the vertical direction. In fact, the first pin 111 is a pin-shaped structural feature integrally formed at the bottom of the first tow hook mating component 11; the intermediate mating component 12 of the first lock body assembly 1 is provided with a first insertion hole 121 along the vertical direction. In fact, the first insertion hole 121 is a long hole-shaped structural feature integrally formed at the intermediate mating component 12; the first pin 111 of the first tow hook mating component 11 can be inserted into the first insertion hole 121 of the intermediate mating component 12, and the first pin 111 of the first tow hook mating component 11 can slide and lock relative to the first insertion hole 121 of the intermediate mating component 12.

[0033] More specifically, the first latch 111 of the first tow hook mating component 11 is provided with a plurality of positioning holes along its extension direction, thereby forming a positioning hole group 112; a fixing hole 122 is provided at the intermediate mating component 12, which penetrates into the first insertion hole 121; after any positioning hole in the positioning hole group 112 of the first latch 111 and the fixing hole 122 of the intermediate mating component 12 are aligned with each other, they can be passed through and locked by the fixing member.

[0034] Furthermore, the fixing hole 122 of the intermediate fitting component 12 is configured as a threaded hole, and accordingly, the fixing member is a screw.

[0035] Specifically, the intermediate fitting component 12 of the first lock body assembly 1 is provided with a second pin 123 in the horizontal direction. In fact, the second pin 123 is a pin-shaped structural feature integrally formed on the side of the intermediate fitting component 12; the main component 21 of the second lock body assembly 2 is provided with a second socket 211 in the horizontal direction. In fact, the second socket 211 is a long hole-shaped structural feature integrally formed on the main component 21; the second pin 123 of the intermediate fitting component 12 can be inserted into the second socket 211 of the main component 21, and the second pin 123 of the intermediate fitting component 12 can slide and lock relative to the second socket 211 of the main component 21.

[0036] To be more specific, the second latch 123 of the intermediate matching component 12 is provided with a positioning tooth group 124 along its extension direction. In this embodiment, the positioning tooth group 124 is integrally formed on one side of the second latch 123; a lock core 22 is embedded in the main body component 21 of the second lock body assembly 2; the lock core 22 includes a lock tongue 221, and a key transmission group 222 that can link the lock tongue 221 to move forward and backward in a linear manner; the lock tongue 221 of the lock core 22 passes through the second insertion hole 211. When the key transmission group 222 of the lock core 22 is operated, the lock tongue 221 can be linked to move forward and backward in a linear manner to clamp / disengage any tooth groove in the positioning tooth group 124 of the second latch 123.

[0037] More specifically, the lock tongue 221 of the lock cylinder 22 has an elastic reset capability. In this embodiment, the lock tongue 221 is a self-resetting elastic lock tongue 221 commonly used in the prior art, and the lock tongue 221 is provided with an elastic reset capability through a spring inside the lock cylinder 22; the key transmission group 222 is provided with a dial wheel 2221 on the inner side of the lock cylinder 22, and the dial wheel 2221 has at least one protruding structure; when the key transmission group 222 of the lock cylinder 22 is operated to put the key transmission group 222 in the locked state, the dial wheel 2221 of the key transmission group 222 does not apply force to the lock tongue 221 (the dial wheel 2221 does not apply force to the lock tongue 221). When the key transmission group 222 of the lock cylinder 22 is operated to put the key transmission group 222 in the unlocked state, the dial 2221 of the key transmission group 222 applies force to the lock tongue 221 (the raised structure of the dial 2221 contacts the paddle of the lock tongue 221), causing the lock tongue 221 of the lock cylinder 22 to retreat (at this time, the spring of the lock tongue 221 is compressed) to disengage from the positioning tooth group 124 of the second latch 123.

[0038] Specifically, the inner side of the first tow hook engaging component 11 of the first lock body assembly 1 is configured as an arc-shaped surface, so that the first tow hook engaging component is suitable for being attached to the surface of the vehicle tow hook.

[0039] Specifically, the second towing hook matching component 23 of the second lock body assembly 2 is configured as a ball head. In this embodiment, the second towing hook matching component 23 has a rubber-coated ball head with a metal frame, which is fixed to the main component 21 by screws.

[0040] In the vehicle tow hook lock of this embodiment, the second tow hook matching component 23 of the second lock body assembly 2 is configured as a ball head, which can be adapted to be connected to the hook body of the vehicle tow hook. The inner side of the first tow hook matching component 11 of the first lock body assembly 1 is configured as an arc surface, which is adapted to be placed on the surface of the vehicle tow hook; the first latch 111 of the first tow hook matching component 11 is slid along the first insertion hole 121 of the intermediate matching component 12, and after reaching the appropriate position, one of the positioning holes 112 of the first latch 111 is aligned with the fixing hole 122 of the intermediate matching component 12, and the fixing member (i.e., screw) is sequentially passed through the fixing hole 122 of the intermediate matching component 12 and the corresponding positioning hole of the first latch 111, i.e. The relative position of the first tow hook matching component 11 and the intermediate matching component 12 can be locked, and the vertical matching position of the vehicle tow hook lock can be adjusted and locked; the second pin 123 of the intermediate matching component 12 is slid along the second insertion hole 211 of the main component 21, and after reaching the appropriate position, the key transmission group 222 of the lock cylinder 22 is operated to put the key transmission group 222 into a locked state, and the dial 2221 of the key transmission group 222 does not apply force to the lock tongue 221, and the lock tongue 221 of the lock cylinder 22 moves forward and clamps the corresponding tooth groove in the positioning tooth group 124 of the second pin 123, thereby locking the relative position of the intermediate matching component 12 and the main component 21, and the horizontal matching position of the vehicle tow hook lock can be adjusted and locked.

[0041] The vehicle tow hook lock of this embodiment has a first lock body assembly 1 and a second lock body assembly 2, and the relative matching positions of the first lock body assembly 1 and the second lock body assembly 2 at the vehicle tow hook can be changed in the horizontal direction and the vertical direction, respectively, so as to adapt to a variety of relative matching positions in the horizontal direction and the vertical direction. It has good versatility and can effectively adapt to a variety of tow hooks of different specifications, saving the development, manufacturing, maintenance and spare parts costs of the vehicle tow hook lock.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle tow hook lock, comprising a first lock body assembly and a second lock body assembly; The first lock body assembly is adapted to be attached to the surface of the vehicle tow hook, and the second lock body assembly is adapted to be connected to the hook body of the vehicle tow hook; It is characterized in that The first lock body assembly and the second lock body assembly are adapted to be extended and locked in a horizontal direction, so that the relative matching position of the first lock body assembly and the second lock body assembly at the vehicle tow hook can be changed in a horizontal direction; The first lock body assembly and the second lock body assembly are also suitable for telescoping and locking in the vertical direction, so that the relative matching position of the first lock body assembly and the second lock body assembly at the vehicle tow hook can also be changed in the vertical direction.

2. The vehicle tow hook lock according to claim 1, characterized in that: The first lock body assembly includes a first towing hook matching component and an intermediate matching component, wherein the first towing hook matching component and the intermediate matching component can be relatively telescopic and locked in a vertical direction; The second lock body assembly includes a main body component and a second towing hook matching component, and the second towing hook matching component is fixedly mounted on the main body component; The intermediate matching component of the first lock body assembly and the main component of the second lock body assembly can be relatively telescoped and locked in a horizontal direction; The first tow hook matching component of the first lock body assembly is suitable for being attached to the surface of the vehicle tow hook, and the second tow hook matching component of the second lock body assembly is suitable for being connected to the hook body of the vehicle tow hook.

3. The vehicle tow hook lock according to claim 2, characterized in that: The first towing hook matching component of the first lock body assembly is provided with a first latch in the vertical direction; The middle matching component of the first lock body assembly is provided with a first insertion hole in the vertical direction; The first latch of the first tow hook engaging component can be inserted into the first insertion hole of the intermediate engaging component, and the first latch of the first tow hook engaging component can slide and lock relative to the first insertion hole of the intermediate engaging component.

4. The vehicle tow hook lock according to claim 3, characterized in that: The first latch of the first towing hook matching component is provided with a plurality of positioning holes along its extending direction, thereby forming a positioning hole group; The intermediate fitting component is provided with a fixing hole penetrating into the first insertion hole; After any positioning hole in the positioning hole group of the first latch is aligned with the fixing hole of the intermediate matching component, it can be passed through by the fixing member and locked.

5. The vehicle tow hook lock according to claim 4, characterized in that: The fixing hole of the intermediate fitting component is configured as a threaded hole or a pin hole.

6. The vehicle tow hook lock according to claim 2, characterized in that: The middle matching component of the first lock body assembly is provided with a second latch in the horizontal direction; The main body component of the second lock body assembly is provided with a second insertion hole in the horizontal direction; The second latch of the intermediate fitting component can be inserted into the second insertion hole of the main body component, and the second latch of the intermediate fitting component can slide and be locked relative to the second insertion hole of the main body component.

7. The vehicle tow hook lock according to claim 6, characterized in that: The second latch pin of the intermediate fitting member is provided with a positioning tooth set along its extension direction; A lock core is embedded in the main body component of the second lock body assembly; The lock core includes a lock tongue and a key transmission group capable of linking the lock tongue to move forward and backward in translation; The lock tongue of the lock core passes through the second insertion hole. When the key transmission group of the lock core is operated, the lock tongue can be linked to move forward and backward to clamp / disengage any tooth groove in the positioning tooth group of the second bolt.

8. The vehicle tow hook lock according to claim 7, characterized in that: The lock tongue of the lock core has elastic reset capability; The key transmission group is provided with a dial wheel on the inner side of the lock cylinder; When the key transmission group of the lock core is operated to put the key transmission group into a locked state, the thumb wheel of the key transmission group does not apply force to the lock tongue, and the lock tongue of the lock core moves forward and clamps any tooth groove in the positioning tooth group of the second latch pin; When the key transmission group of the lock core is operated to be in an unlocked state, the thumbwheel of the key transmission group applies force to the lock tongue, causing the lock tongue of the lock core to retreat and disengage from the positioning tooth group of the second latch.

9. The vehicle tow hook lock according to any one of claims 2 to 5, characterized in that: The inner side of the first towing hook matching component of the first lock body assembly is configured as an arc-shaped surface.

10. The vehicle tow hook lock according to any one of claims 2, 6-8, characterized in that: The second trailer hook engaging component of the second lock body assembly is configured as a ball head.

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