Trailer ball cover lock

Abstract

The utility model discloses a trailer ball cover lock and relates to the technical field of trailer protection, the trailer ball cover lock is used for a trailer ball cover and comprises a main lock body, an outer cover body and a locking piece, the main lock body comprises a mounting plate and a clamping part mounted on the mounting plate, the clamping part comprises a supporting column and a lock head, one end of the supporting column is connected with the lock head, and the other end of the supporting column is connected with the mounting plate; the outer cover body covers part of the main lock body, an avoiding groove is formed in the outer cover body, two limiting parts and a spring bolt are arranged on each of three adjacent edges of the mounting plate, the limiting parts are oppositely arranged on the mounting plate and penetrate through the avoiding groove, an avoiding hole is formed in the outer cover body relative to the spring bolt, and the spring bolt penetrates through the avoiding hole and extends into the locking piece. According to the technical scheme provided by the utility model, after the locking pin shaft of the fixed handle is lost and damaged, the trailer ball cover lock can still effectively lock the trailer ball cover, and meanwhile, the trailer hook of the trailer chain is locked in the outer cover body.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer protection, in particular to a trailer ball cover lock. Background Art

[0002] At present, more and more users in the domestic market have begun to use and get involved in outdoor sports, including RVs, trailers, yachts and other products. These large products need to have a trailer connection with the car during use so that the RVs, trailers, yachts, etc. can move. Generally speaking, a trailer hook is provided at the rear of the car, and a trailer ball cover is provided at the front of the RV, trailer and yacht. The trailer ball cover includes a ball cover shell, a pressure cover, a handle and a trailer chain. The handle can make the pressure cover close to or away from the ball cover shell, so that when the ball cover shell covers the trailer hook, the pressure cover can fix the trailer hook in the ball cover shell by moving the handle to complete the trailer connection between the RV, trailer, yacht and the car. The trailer chain can also be wrapped around the trailer hook to complete the trailer connection between the RV, trailer, yacht and the car.

[0003] When the RV, trailer or yacht is parked for a long time due to maintenance, sale or other reasons, the car will release the trailer connection. At this time, in order to prevent the RV, trailer or yacht from being stolen, the ball cover will be locked with a sleeve lock. The sleeve lock can block the ball cover shell to prevent the thief's car's trailer hook from connecting to the trailer sleeve of the stolen RV, trailer or yacht.

[0004] The sleeve locks currently on the market are not strong and can be easily damaged or pried open, and cannot achieve effective locking. In particular, when the locking pin of the fixed handle is lost or damaged, the handle can relax the pressing force on the gland, so that after shaking the sleeve lock left and right, the sleeve lock is very easy to be removed, and cannot play an effective anti-theft role. In addition, the sleeve locks currently on the market cannot lock the trailer chain. When the ball cover is locked, thieves can still tow away the RV, trailer, yacht, etc. through the trailer chain. Utility Model Content

[0005] The main purpose of the utility model is to provide a trailer ball cover lock, aiming to solve at least one of the above problems.

[0006] To achieve the above-mentioned purpose, the trailer ball cover lock proposed by the utility model is used for a trailer ball cover, the trailer ball cover comprises a ball cover shell, a pressure cover, a handle and a trailer chain, the handle can make the pressure cover approach or move away from the ball cover shell, the trailer chain is arranged on the ball cover shell, and the trailer ball cover lock can lock the trailer ball cover, including:

[0007] The main lock body comprises a mounting plate and a clamping part mounted on the mounting plate, wherein the clamping part comprises a support column and a lock head, one end of the support column is connected to the lock head, and the other end is connected to the mounting plate, the lock head can extend into the ball cover shell and be pressed to the ball cover shell by the gland, and the trailer chain is wound around the support column;

[0008] An outer cover body, which covers the ball cover shell and part of the main lock body, and an avoidance groove is provided on the outer cover body. Two limit parts and a lock tongue are respectively provided on three adjacent sides of the mounting plate. The limit parts are arranged opposite to each other on the mounting plate and penetrate the avoidance groove; and

[0009] The locking piece is provided with an avoidance hole on the outer cover relative to the locking tongue, and the locking tongue passes through the avoidance hole and extends into the locking piece.

[0010] In one embodiment, a trailer hook is provided at one end of the trailer chain away from the ball cover shell, and the trailer hook is hung on the support column.

[0011] In one embodiment, the support column includes a first plate body, and the first plate body extends along the thickness direction of the mounting plate.

[0012] In one embodiment, the lock head includes a second plate body and a third plate body intersecting in a cross shape, and the second plate body and the first plate body are configured as the same structure.

[0013] In one embodiment, the limiting portion and the locking tongue are respectively arranged at two ends of the mounting plate in the length direction, and the limiting portion is arranged close to the clamping portion.

[0014] In one embodiment, the limiting portion is arranged on opposite sides of the mounting plate in the width direction and includes a limiting flange, the limiting flange extends outward along the edge of the mounting plate, and the limiting groove passes through the outer cover body in the width direction of the mounting plate.

[0015] In one embodiment, the limiting portion also includes an abutment flange, and at an end of the limiting flange away from the mounting plate, the abutment flange is bent and extended along a first direction, the first direction is intersected with the extension direction of the limiting flange, and the abutment flange abuts against the outer edge of the limiting groove.

[0016] In one embodiment, the cross-sectional shape of the outer cover body is configured as a circular ring, the connection between the abutting flange and the limiting flange abuts against the outer edge of the limiting groove, and the first direction is the tangent direction of the abutment between the limiting portion and the limiting groove.

[0017] In one embodiment, a mounting flange is provided on one end of the mounting plate away from the limiting portion, and the mounting flange is bent and extended at the edge of the mounting plate along the extension direction of the support column. The end of the mounting flange away from the mounting plate is connected to the locking tongue, and one end of the locking tongue is connected to the mounting flange, and the other end extends along the extension direction of the mounting plate.

[0018] In one embodiment, a lock core is provided inside the locking member, and the lock core is connected to the lock tongue.

[0019] The trailer ball cover lock in the technical solution of the utility model is used for a trailer ball cover, the trailer ball cover comprises a ball cover shell, a pressure cover, a handle and a trailer chain, the handle can make the pressure cover approach or move away from the ball cover shell, the trailer chain is arranged on the ball cover shell, the trailer ball cover lock can lock the trailer ball cover, and comprises a main lock body, an outer cover body and a locking piece, the main lock body comprises a mounting plate, the outer cover body is arranged on the ball cover shell and part of the main lock body, an avoidance groove is opened on the outer cover body, two limiting parts and a locking tongue are respectively arranged on the three adjacent sides of the mounting plate, the limiting parts are relatively arranged on the mounting plate, and are penetrated in the avoidance groove, so that the outer cover body cannot rotate along its own axis, the outer cover body is provided with an avoidance hole relative to the locking tongue, the locking tongue passes through the avoidance hole and extends into the locking piece, so that the outer cover body cannot move along its own axis direction, that is, relative fixation between the mounting plate and the outer cover body is achieved. At the same time, the mounting plate also includes a clamping part, which includes a support column and a locking head. One end of the support column is connected to the locking head, and the other end is connected to the mounting plate. During the installation of the trailer ball cover lock, the trailer chain is wrapped around the support column so that the trailer chain can be locked in the outer cover body, and the locking head can be extended into the ball cover shell. The handle controls the pressure cover to move toward the ball cover, and the locking head can be pressed against the ball cover shell by the pressure cover to fix the mounting plate relative to the ball cover. Wrapping the trailer chain around the support column has the following two advantages: on the one hand, it can effectively prevent the trailer chain from being hooked by the trailer hook on the thief's car, avoid forming a trailer connection, and effectively reduce the possibility of theft of items installed on the trailer ball cover; on the other hand, the trailer chain can fill the space between the ball cover shell and the mounting plate. When the handle controls the pressure cover to move away from the ball cover shell, that is, the lock head is no longer pressed against the ball cover shell, due to the limitation of the trailer chain, the lock head does not have enough room for movement in its own radial direction, and the outer cover body covers the trailer ball cover at the same time after being plugged into the mounting plate. Therefore, the lock head does not have enough room for movement in its own axial direction, and thus no matter how the trailer ball cover lock is shaken, the lock head cannot fall out of the ball cover shell, and the trailer ball cover lock can firmly lock the trailer ball cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A structural schematic diagram of an embodiment of a trailer ball cover lock provided by the utility model;

[0022] Figure 2 for Figure 1 A partial exploded view of the illustrated embodiment;

[0023] Figure 3 for Figure 1 Exploded view of the illustrated embodiment.

[0024] Description of Figure Numbers:

[0025] 100, main lock body; 11, mounting plate; 12, clamping part; 121, supporting column; 122, lock head; 123, first plate body; 124, second plate body; 125, third plate body; 13, limiting part; 131, limiting flange; 132, abutting flange; 14, lock tongue; 15, mounting flange;

[0026] 200, outer cover; 21, avoidance groove; 22, avoidance hole;

[0027] 300. Locking piece.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] The utility model provides a trailer ball cover lock.

[0033] See also Figures 1 to 3In one embodiment of the utility model, the trailer ball cover lock is used for a trailer ball cover, which includes a ball cover shell, a pressure cover, a handle and a trailer chain. The handle can make the pressure cover close to or away from the ball cover shell. The trailer chain is arranged on the ball cover shell. The trailer ball cover lock can lock the trailer ball cover and includes a main lock body 100, an outer cover body 200 and a locking member 300. The main lock body 100 includes a mounting plate 11. The outer cover body 200 is covered on the ball cover shell and part of the main lock body 100. The outer cover body 200 is provided with an avoidance groove 21. Two limiting parts 13 and a locking tongue 14 are respectively provided on three adjacent sides of the mounting plate 11. The limiting parts 13 are relatively arranged on the mounting plate 11 and penetrate the avoidance groove 21, so that the outer cover body 200 cannot rotate along its own axis. An avoidance hole 22 is provided on the outer cover body 200 relative to the locking tongue 14. The locking tongue 14 passes through the avoidance hole 22 and extends into the locking member 300, so that the outer cover body 200 cannot move along its own axis, that is, the relative fixation between the mounting plate 11 and the outer cover body 200 is achieved. At the same time, the mounting plate 11 also includes a clamping portion 12, which includes a support column 121 and a lock 122. One end of the support column 121 is connected to the lock 122, and the other end is connected to the mounting plate 11. During the installation of the trailer ball cover lock, the trailer chain is wrapped around the support column 121, so that the trailer chain can be locked in the outer cover body 200, and the lock 122 can extend into the ball cover shell. The handle controls the pressure cover to move toward the ball cover, and the lock 122 can be pressed against the ball cover shell by the pressure cover to fix the mounting plate 11 relative to the ball cover. Wrapping the trailer chain around the support column 121 has the following two advantages: on the one hand, it can effectively prevent the trailer chain from being hooked by the trailer hook on the thief's car, avoid forming a trailer connection, and effectively reduce the possibility of theft of items installed in the trailer ball cover; on the other hand, the trailer chain can fill the space between the ball cover shell and the mounting plate 11. When the handle controls the pressure cover to move away from the ball cover shell, that is, the lock head 122 is no longer pressed against the ball cover shell, due to the limitation of the trailer chain, the lock head 122 does not have enough room for movement in its own radial direction, and the outer cover body 200 covers the trailer ball cover at the same time after being plugged into the mounting plate 11. Therefore, the lock head 122 does not have enough room for movement in its own axial direction, and thus no matter how the trailer ball cover lock is shaken, the lock head 122 cannot fall out of the ball cover shell, and the trailer ball cover lock can firmly lock the trailer ball cover.

[0034] In one embodiment, a trailer hook is provided at one end of the trailer chain away from the ball cover, and the trailer hook is hung on the support column 121. The trailer chain can be completely wound around the support column 121. The trailer chain is generally used through the trailer hook, specifically, the trailer hook on the trailer chain is hung on the trailer hook of the car, so that the car can tow the object with the trailer ball cover. Therefore, this solution can completely store the trailer hook in the outer cover body 200 to prevent thieves from stealing through the trailer hook.

[0035] In other embodiments, the end of the trailer chain away from the ball cover shell may not have a trailer hook.

[0036] In one embodiment, the support column 121 includes a first plate body 123, and the first plate body 123 extends along the thickness direction of the mounting plate 11. The lock head 122 includes a second plate body 124 and a third plate body 125 that intersect in a cross shape, and the second plate body 124 and the first plate body 123 are configured as the same structure. It can effectively save the materials used for the lock head 122 and the ball cover, reduce the weight of the mounting plate 11, make the trailer ball cover lock easy to carry, and effectively reduce the production cost. At the same time, the connection between the lock head 122 and the support column 121 has sufficient strength. In other embodiments, the support column 121 can also be configured as a metal column with a circular cross-section, and the lock head 122 can be configured as a spherical metal ball.

[0037] In one embodiment, the limiting portion 13 is arranged on two opposite sides in the width direction of the mounting plate 11, and includes a limiting flange 131, which extends outward along the edge of the mounting plate 11, and the limiting groove penetrates the outer cover body 200 in the width direction of the mounting plate 11 to prevent the outer cover body 200 from moving in the thickness direction relative to the mounting plate 11. The limiting portion 13 also includes an abutting flange 132. At one end of the limiting flange 131 away from the mounting plate 11, the abutting flange 132 is bent and extended along a first direction, and the first direction is intersected with the extension direction of the limiting flange 131, and the abutting flange 132 abuts against the outer edge of the limiting groove to prevent the outer cover body 200 from moving in the width direction relative to the mounting plate 11, thereby fixing the outer cover body 200 relative to the mounting plate 11. In other embodiments, the abutting flange 132 may be omitted, and the edge of the mounting plate 11 may abut against the inner wall of the outer cover body 200 to prevent the outer cover body 200 from moving in the width direction relative to the mounting plate 11; or, threaded holes may be provided on two opposite side surfaces of the mounting plate 11 in the width direction, and the outer cover body 200 and the mounting plate 11 may be fixed by screws.

[0038] In one embodiment, the cross-sectional shape of the outer cover 200 is configured as a circular ring, the connection between the abutting flange 132 and the limiting flange 131 abuts against the outer edge of the limiting groove, and the first direction is the tangent direction of the abutment between the limiting portion 13 and the limiting groove. Since the cover of the trailer ball cover on the market is usually an arc-shaped structure, the circular outer cover 200 can be better adapted to the trailer ball cover, and when the circular structure is subjected to force, the force will be dispersed to other parts of the circular structure to have better pressure resistance. When the thief intends to violently break the trailer ball cover lock, the outer cover 200 will not be easily destroyed. In other embodiments, the cross-sectional shape of the outer cover 200 can also be configured as a square.

[0039] In one embodiment, the limiting portion 13 and the locking tongue 14 are respectively arranged at both ends of the mounting plate 11 in the length direction, and the limiting portion 13 is arranged close to the clamping portion 12. That is, the limiting flange 131 and the abutting flange 132 are only formed at one end close to the support column 121, so that the consumables required for producing the mounting plate 11 can be reduced while limiting the outer cover 200, and the weight of the mounting plate 11 can be reduced for easy carrying. In other embodiments, the limiting flange 131 and the abutting flange 132 can also extend to both ends of the mounting plate 11 in the length direction.

[0040] In one embodiment, a lock core is provided inside the locking member 300, and the lock core is connected to the lock tongue 14. Specifically, the lock core is provided on one side of the lock tongue 14 along the locking member 300, and the lock hole of the lock core is exposed on the outer side of the locking member 300 for the key to be inserted. In other embodiments, the lock tongue 14 may be provided with a lock hole, and the locking member 300 may be a padlock. When the lock tongue 14 extends out of the avoidance hole 22, the padlock passes through the lock hole to prevent the lock tongue 14 from moving back to the outer cover 200.

[0041] In one embodiment, an installation flange 15 is provided at one end of the mounting plate 11 away from the limiting portion 13. The installation flange 15 is bent and extended along the extension direction of the support column 121 at the edge of the mounting plate 11. The end of the installation flange 15 away from the mounting plate 11 is connected to the lock tongue 14. One end of the lock tongue 14 is connected to the installation flange 15, and the other end extends along the extension direction of the mounting plate 11, so that the lock tongue 14 can extend out of the avoidance hole 22 and be locked by the locking member 300 to limit the movement of the outer cover 200 in the length direction relative to the mounting plate 11. At this point, the outer cover 200 is fixed to the mounting plate 11. The installation flange 15 can raise the lock tongue 14, so that the lock core of the locking member 300 is set close to the mounting plate 11, and the lock hole is exposed on the side of the locking member 300 close to the mounting plate 11, that is, the lock hole is set downward to prevent rainwater from entering the lock core through the lock hole when it rains, and to prevent the lock core from rusting.

[0042] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A trailer ball cover lock, used for a trailer ball cover, the trailer ball cover comprises a ball cover shell, a pressure cover, a handle and a trailer chain, the handle can make the pressure cover approach or move away from the ball cover shell, the trailer chain is arranged on the ball cover shell, the trailer ball cover lock can lock the trailer ball cover, and is characterized in that: include: The main lock body comprises a mounting plate and a clamping part mounted on the mounting plate, wherein the clamping part comprises a support column and a lock head, one end of the support column is connected to the lock head, and the other end is connected to the mounting plate, the lock head can extend into the ball cover shell and be pressed to the ball cover shell by the gland, and the trailer chain is wound around the support column; An outer cover body, which covers the ball cover shell and part of the main lock body, and an avoidance groove is provided on the outer cover body. Two limit parts and a lock tongue are respectively provided on three adjacent sides of the mounting plate. The limit parts are arranged opposite to each other on the mounting plate and penetrate the avoidance groove; and The locking piece is provided with an avoidance hole on the outer cover relative to the locking tongue, and the locking tongue passes through the avoidance hole and extends into the locking piece.

2. The trailer ball cover lock according to claim 1, characterized in that: A trailer hook is arranged at one end of the trailer chain away from the ball cover shell, and the trailer hook is hung on the support column so as to be locked in the ball cover shell.

3. The trailer ball cover lock according to claim 2, characterized in that: The support column includes a first plate body, and the first plate body extends along the thickness direction of the mounting plate.

4. The trailer ball cover lock according to claim 3, characterized in that: The lock head includes a second plate body and a third plate body intersecting in a cross shape, and the second plate body and the first plate body are configured as the same structure.

5. The trailer ball cover lock according to claim 1, characterized in that: The limiting portion and the locking tongue are respectively arranged at two ends of the mounting plate in the length direction, and the limiting portion is arranged close to the clamping portion.

6. The trailer ball cover lock according to claim 5, characterized in that: The limiting portion is arranged on two opposite sides of the mounting plate in the width direction and includes a limiting flange, the limiting flange extends outward along the edge of the mounting plate, and the limiting groove penetrates the outer cover in the width direction of the mounting plate.

7. The trailer ball cover lock according to claim 6, characterized in that: The limiting part also includes an abutting flange, at an end of the limiting flange away from the mounting plate, the abutting flange is bent and extended along a first direction, the first direction is intersected with the extension direction of the limiting flange, and the abutting flange abuts against the outer edge of the limiting groove.

8. The trailer ball cover lock according to claim 7, characterized in that: The cross-sectional shape of the outer cover is configured as a circular ring, the connection between the abutting flange and the limiting flange abuts against the outer edge of the limiting groove, and the first direction is the tangent direction of the abutment between the limiting portion and the limiting groove.

9. The trailer ball cover lock according to claim 8, characterized in that: An installation flange is provided at one end of the mounting plate away from the limiting portion, and the installation flange is bent and extended at the edge of the mounting plate along the extension direction of the support column. The end of the installation flange away from the mounting plate is connected to the lock tongue, and one end of the lock tongue is connected to the installation flange, and the other end extends along the extension direction of the mounting plate.

10. The trailer ball cover lock according to claim 1, characterized in that: A lock core is arranged inside the locking member, and the lock core is connected to the lock tongue.

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