Trailer lock

Abstract

The utility model discloses a trailer lock and relates to the technical field of trailers, the trailer lock is used for locking a trailer ball cover, the trailer ball cover comprises a ball cover plate, one side of the ball cover plate is recessed inwards to form a hollow spherical structure, and the trailer lock comprises a mounting seat, a locking mechanism and a locking mechanism, the locking seat is arranged on the mounting seat, and the end, away from the mounting seat, of the locking seat extends into the dome cover plate and abuts against the inner wall of the dome cover plate; and the limiting seat is arranged on the mounting seat, and the limiting seat is used for limiting the separation of the dome cover plate and the mounting seat. According to the technical scheme provided by the utility model, the trailer ball cover cannot move, cannot be separated from the mounting seat and cannot be stolen, so that the anti-theft performance of the trailer is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to trailer technical field, especially a trailer lock. BACKGROUND

[0002] In modern transportation and leisure activities, trailers are widely used to carry goods or mobile homes, etc., and the trailer is usually connected with a towing vehicle through a trailer ball cover, however, the trailer ball cover itself does not have a protective structure, which leads to the possibility of theft of the trailer. SUMMARY

[0003] The main purpose of the utility model is to provide a trailer lock, which aims to solve the problem that the trailer may be used by others when not in use.

[0004] To achieve the above purpose, the utility model provides a trailer lock for locking a trailer ball cover, the trailer ball cover includes a ball cover plate, one side of the ball cover plate is recessed inward to form a hollow spherical structure, and the trailer lock includes:

[0005] A mounting seat;

[0006] A locking seat provided on the mounting seat, an end of the locking seat away from the mounting seat extends into the ball cover plate and abuts against the inner wall of the ball cover plate; and

[0007] A limiting seat provided on the mounting seat, the limiting seat is used to limit the disengagement of the ball cover plate and the mounting seat.

[0008] In an embodiment, the locking seat includes a first plate, two first plates are provided, and the two first plates are cross-connected, the outer periphery of the first plate is arc-shaped and is fitted with the inner wall of the ball cover plate.

[0009] In an embodiment, the side of the ball cover plate extends outward to form a baffle, and the limiting seat includes:

[0010] A second plate connected with the mounting seat;

[0011] A limiting block provided on one side of the second plate facing the ball cover plate, and the limiting block is used to limit the movement of the baffle in the direction away from the hollow.

[0012] In an embodiment, the trailer lock further includes a connecting assembly for detachably connecting the limiting seat and the mounting seat.

[0013] In an embodiment, the mounting base is provided with a first insertion hole on a side away from the locking base, and a second insertion hole is provided on a side adjacent to the first insertion hole, the axis of the first insertion hole and the axis of the second insertion hole are perpendicular, and the first insertion hole and the second insertion hole are in communication, and the connecting assembly comprises:

[0014] A first insertion pin is provided on a side of the second plate block facing the mounting base and is inserted into the second insertion hole;

[0015] A second insertion pin is inserted into the first insertion hole and is in clamping connection with the first insertion pin.

[0016] In an embodiment, the first insertion pin is provided with a groove on the outer periphery, and the groove extends along the circumference of the first insertion pin, and the second insertion pin is inserted into the groove to limit the first insertion pin from being separated from the second insertion hole.

[0017] In an embodiment, the second insertion pin is in threaded connection with the first insertion hole.

[0018] In an embodiment, the trailer lock further comprises a shell assembly provided on a side of the limiting base facing the trailer ball cover and covering the ball cover plate and the mounting base.

[0019] In an embodiment, the shell assembly comprises:

[0020] A first shell is provided in a circular arc shape;

[0021] Two second shells are provided, and the two second shells are separately provided on two sides of the first shell;

[0022] The first shell and the second shell are fixedly connected to the second plate block on a side facing the second plate block, and the first shell is sleeved on a side of the ball cover plate away from the mounting base.

[0023] In an embodiment, the locking base further comprises a connecting plate block, the first plate block and the mounting base are connected through the connecting plate block, and the connecting plate block is used to fix the chain and cooperate with the limiting base to limit the chain.

[0024] The utility model discloses a technical scheme, this trailer lock is used for locking trailer ball cover, can be used for preventing trailer ball cover to be taken away and stolen, specifically, trailer lock includes mounting seat, sets up a locking seat on the mounting seat, and the locking seat extends upward and the end part is inserted into the inside of ball cover board, because the ball cover board is open -ended hollow spherical structure, and one side is connected fixed cover board, when the locking seat is in the inside of ball cover board, will the movement direction of trailer ball cover be limited, makes it unable to move to the direction of locking seat, also cannot move along the radial, can only move to the direction of being away from locking seat, sets up a limit seat on the mounting seat, and the limit seat is cooperated with ball cover board, can prevent ball cover board from being away from locking seat, namely through the cooperation of locking seat and limit seat, makes trailer ball cover unable to cooperate with ball head, also cannot be stolen, greatly improves the anti -theft performance of trailer. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the drawing needed to be used in the embodiment or prior art description simple introduction, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, also can obtain other drawings according to the structure shown in these drawings.

[0026] Figure 1 The utility model provides a structure schematic diagram of one embodiment of trailer lock;

[0027] Figure 2 The utility model provides a cross section structure schematic diagram of trailer lock;

[0028] Figure 3 The utility model provides a structure schematic diagram of one embodiment of locking seat;

[0029] Figure 4 The utility model provides a structure schematic diagram of one embodiment of limit seat and connecting assembly.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 10, trailer lock;

[0032] 100, mounting seat;101, first jack;102, second jack;

[0033] 200, locking seat;210, first board piece;220, connecting board piece;

[0034] 300, limit seat;310, second board piece;320, limit block;

[0035] 400, connecting assembly;410, first bolt;411, recess;420, second bolt;

[0036] 500, housing assembly; 510, first housing; 520, second housing;

[0037] 20, trailer ball cover; 201, ball cover plate; 202, baffle; 203, fixed cover plate.

[0038] The realization, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0040] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0041] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0042] The utility model provides a kind of trailer lock.

[0043] Please refer to Figure 1 And Figure 2 In an embodiment of the utility model, the trailer lock 10 is used to lock the trailer ball cover 20, the trailer ball cover 20 includes the ball cover plate 201, one side of the ball cover plate 201 is inwardly recessed to form a hollow spherical structure, and the trailer lock 10 includes:

[0044] mounting seat 100;

[0045] The locking seat 200 is arranged on the mounting seat 100, and the end of the locking seat 200 away from the mounting seat 100 extends into the ball cover plate 201 and abuts against the inner wall of the ball cover plate 201.

[0046] The limiting seat 300 is arranged on the mounting seat 100, and the limiting seat 300 is used for limiting the disengagement of the ball cover plate 201 and the mounting seat 100.

[0047] The trailer lock 10 is used for locking the trailer ball cover, and can be used for preventing the trailer ball cover 20 from being stolen, specifically, the trailer lock 10 comprises the mounting seat 100, the locking seat 200 is arranged on the mounting seat 100, the locking seat 200 extends upward and the end thereof extends into the interior of the ball cover plate 201, since the ball cover plate 201 is an open hollow spherical structure and is connected with the fixed cover plate 203 on one side, when the locking seat 200 is in the interior of the ball cover plate 201, the movement direction of the trailer ball cover 20 is limited, so that the trailer ball cover 20 cannot move towards the direction of the locking seat 200 and cannot move along the radial direction, but can only move away from the direction of the locking seat 200, the limiting seat 300 is arranged on the mounting seat 100, the limiting seat 300 cooperates with the ball cover plate 201, so that the ball cover plate 201 cannot move away from the locking seat 200, that is, through the cooperation of the locking seat 200 and the limiting seat 300, the trailer ball cover 20 cannot cooperate with the ball head, so that the trailer ball cover 20 cannot be stolen, and the anti-theft performance of the trailer is greatly improved.

[0048] Specifically, the trailer ball cover 20 adopts a conventional structure, including a cover plate 201 and a fixed cover plate 203, the cover plate 201 is in a hollow hemispherical structure, used for covering and protecting the trailer ball cover 20 when the trailer is towed, the fixed cover plate 203 is connected to the cover plate 201 and is in a fan-shaped expansion, the mounting seat 100 is arranged on the side opening towards the cover plate 201, the mounting seat 100 is used as a mounting platform for mounting the locking seat 200 and the limiting seat 300, the shape of the mounting seat 100 is not limited, the locking seat 200 is mounted on the side of the mounting seat 100 facing the cover plate 201 and extends into the hollow sphere formed by the cover plate 201 and abuts against the inner wall of the cover plate 201, the part of the locking seat 200 extending into the cover plate 201 can be a sphere or a column or any other shape matched with the cover plate, the locking seat is used to prevent the cover plate 201 from moving in the radial direction, which means that the cover plate 201 can only move in the axial direction away from the locking seat 200, the limiting seat 300 is arranged to prevent the cover plate 201 from moving away from the locking seat 200, thereby firmly keeping the cover plate 201 in place, the locking seat 200 and the limiting seat 300 form a double restriction of the trailer ball cover 20 in the axial and radial directions, so that the trailer ball cover 20 cannot be matched with the ball head, the trailer ball cover 20 cannot be used for towing vehicles, and the theft of the trailer is prevented; in addition, the limiting seat 300 and the mounting seat 100 are detachably connected, locked when connected, and when the trailer ball cover 20 needs to be normally used, the connection between the limiting seat 300 and the mounting seat 100 can be released, the limiting seat 300 is removed, and the trailer ball cover 20 is no longer restricted from moving away from the locking seat 200.

[0049] In the embodiment of the utility model, please refer to Figure 2 And Figure 3 The locking seat 200 includes a first plate 210, two first plates 210 are arranged, and the two first plates 210 are cross-connected, and the outer periphery of the first plate 210 is arc-shaped and attached to the inner wall of the cover plate 201.

[0050] Specifically, the locking seat 200 includes a first plate 210 and a connecting plate 220, two first plates 210 are connected in a cross shape and are installed on the mounting seat 100 through the connecting plate 220, the outer edge of each first plate 210 is arc-shaped and can be completely attached to the inner wall of the cover plate 201 inside the cover plate 201, providing maximum contact area and friction, the cross design can increase the rigidity of the overall structure of the locking seat 200, reduce stress concentration points, and improve the durability of the locking seat 200; during installation, the locking seat 200 is installed on the mounting seat 100, the first plate 210 extends into the inside of the cover plate 201, and the arc-shaped edge is attached to the inner wall of the cover plate 201, preventing the cover plate 201 from moving in the radial direction.

[0051] In the embodiment of the utility model, please refer toFigure 2 and Figure 4 The edge side of the ball cover plate 201 extends outward to form a baffle plate 202, and the limiting seat 300 comprises:

[0052] A second plate 310 is connected to the mounting seat 100.

[0053] A limiting block 320 is arranged on the side of the second plate 310 facing the ball cover plate 201, and the limiting block 320 is used to limit the baffle plate 202 to move away from the hollow direction.

[0054] Specifically, referring to Figure 2 and Figure 4 The ball cover plate 201 is in a hollow spherical structure, and the edge side extends radially outward to form a baffle, which can increase the additional safety and limiting function of the trailer ball cover 20. The second plate 310 is detachably mounted on the mounting seat 100 and is used to mount and support the limiting block 320. The shape of the second plate 310 is not limited. When the limiting seat 300 is needed to limit the ball cover plate 201, the second plate 310 is mounted on the mounting seat 100. When the anti-theft function is not needed, the trailer ball cover 20 is used, and the second plate 310 is locked on the mounting seat 100. The limiting block 320 is mounted on the side of the second plate 310 facing the trailer ball cover 20 and is located on the side of the baffle plate 202 away from the locking seat 200. That is, when the ball cover plate 201 tries to move away from the locking seat 200, the baffle plate 202 collides with the limiting block 320. The limiting block 320 is arranged so that the ball cover plate 201 cannot move axially, thereby preventing the ball cover plate 201 from moving axially away from the locking seat 200.

[0055] In the embodiment of the utility model, referring to Figure 2 and Figure 4 The trailer lock 10 further comprises a connecting assembly 400, which is used to detachably connect the limiting seat 300 and the mounting seat 100.

[0056] Specifically, the connecting assembly 400 is used to lock and connect the limiting seat 300 and the mounting seat 100, so as to prevent the limiting seat 300 and the mounting seat 100 from being separated, thereby achieving the bidirectional limiting of the trailer ball cover 20 in the axial and radial directions. When the trailer ball cover 20 does not need to be locked, the limiting seat 300 and the mounting seat 100 are separated by opening the connecting assembly 400, thereby releasing the limiting of the trailer ball cover 20, so that it can be normally used, and it is ensured that the trailer can be prevented from being stolen even in the case of unattended.

[0057] In the embodiment of the utility model, referring to Figure 2 , Figure 3 and Figure 4, the side of the mounting seat 100 away from the locking seat 200 is provided with a first insertion hole 101, the side of the mounting seat 100 adjacent to the first insertion hole 101 is provided with a second insertion hole 102, the axis of the first insertion hole 101 and the axis of the second insertion hole 102 are perpendicular, and the first insertion hole 101 is communicated with the second insertion hole 102, the connecting assembly 400 comprises:

[0058] The first insertion hole 101 is communicated with the second insertion hole 102, and the connecting assembly 400 comprises:

[0059] The second insertion hole 102 is communicated with the first insertion hole 101, and the connecting assembly 400 comprises:

[0060] Specifically, the first insertion hole 101 extending in the axial direction is arranged on the mounting seat 100, and the second insertion hole 102 extending in the radial direction is arranged on one side, and the axis of the first insertion hole 101 and the axis of the second insertion hole 102 are perpendicular, and the first insertion hole 101 is communicated with the second insertion hole 102, and the connecting assembly 400 comprises:

[0061] Specifically, the first insertion hole 101 extending in the axial direction is arranged on the mounting seat 100, and the second insertion hole 102 extending in the radial direction is arranged on one side, and the axis of the first insertion hole 101 and the axis of the second insertion hole 102 are perpendicular, and the first insertion hole 101 is communicated with the second insertion hole 102, and the connecting assembly 400 comprises:

[0062] Specifically, the first insertion hole 101 extending in the axial direction is arranged on the mounting seat 100, and the second insertion hole 102 extending in the radial direction is arranged on one side, and the axis of the first insertion hole 101 and the axis of the second insertion hole 102 are perpendicular, and the first insertion hole 101 is communicated with the second insertion hole 102, and the connecting assembly 400 comprises: Figure 4, the outer periphery of the part of the first plug 410 inserted into the second socket 102 is provided with a groove 411, and when the first plug 410 is completely inserted into the second socket 102, the groove 411 is just opposite to the first socket 101, the second plug 420 is inserted into the first socket 101 and fixed on the mounting seat 100, one end of the second plug 420 inserted into the first socket 101 is inserted into the groove 411, forming a mechanical interlock, which can prevent the first plug 410 from moving along the axis direction of the second socket 102, avoiding its disengagement from the second socket 102, thus preventing the limiting seat 300 from disengaging from the mounting seat 100,

[0063] In one embodiment, the structure of the second plug 420 can be a cylindrical structure, and the diameter of the end close to the second socket 102 is smaller than the diameter of the end away from the second socket 102, the second plug 420 and the first socket 101 can be threadedly connected, realizing the detachability of the second plug 420 and the first socket 101, that is, the outer periphery of the second plug 420 is provided with external threads, the inner wall of the first socket 101 is provided with internal threads, and the external threads and the internal threads are matched, it should be noted that in order to ensure the appearance of the entire trailer lock 10, the end of the second plug 420 is flush with the bottom of the mounting seat 100 after being inserted into the first socket 101, and the end of the second plug 420 is provided with a notch, and then a tool with the same shape as the notch is used, the tool bit is embedded in the notch, and the second plug 420 is rotated by applying force, so that the second plug 420 is rotated into the first socket 101, wherein the shape of the notch can refer to a cross slot or a slot, and the cooperation between the second plug 420 and the tool can refer to a screw and a screwdriver.

[0064] In another embodiment, the second plug 420 and the first socket 101 can also use a locking mechanism (not shown) of a lock cylinder and a key, such as a lock cylinder arranged on the mounting seat 100, the lock cylinder is arranged beside the first socket 101 and communicates with the first socket 101, a lock tongue is arranged inside the lock cylinder and controlled by the lock cylinder, and can be extended into and out of the lock cylinder, a key is arranged for operating the lock cylinder, the key is inserted and rotated to control the extension and retraction of the lock tongue, a hole slot is arranged on the second plug 420 for cooperating with the lock tongue, when the lock tongue is extended, it will be clamped into the hole slot to prevent the second plug 420 from being pulled out, and when the lock tongue is retracted, the second plug 420 can be freely pulled out of the first socket 101.

[0065] In the embodiment of the utility model, please refer to Figure 1 and Figure 2 The trailer lock 10 further comprises a shell assembly 500 arranged on the side of the limiting seat 300 facing the trailer ball cover 20 and covering the ball cover plate 201 and the mounting seat 100.

[0066] Specifically, the design of the shell assembly 500 can cover the ball cover plate 201, the mounting base 100, the locking seat 200 and the limiting block 320, improve the neatness and safety of the overall appearance, and further prevent the ball cover plate 201 from moving away from the mounting base 100. The shell assembly 500 provides physical protection for the internal structure and increases the anti-theft performance.

[0067] In one embodiment, the shell assembly 500 comprises:

[0068] The first shell 510 is in a circular arc shape;

[0069] The second shell 520 is provided in two, and the two second shells 520 are arranged on the two sides of the first shell 510.

[0070] The first shell 510 and the second shell 520 are fixedly connected to the second plate 310 on one side, and the first shell 510 is sleeved on the side of the ball cover plate 201 away from the mounting base 100.

[0071] Specifically, please refer to Figure 1 and Figure 2 The first shell 510 is in a circular arc shape and covers the side of the ball cover plate 201 away from the mounting base 100, thereby providing protection and sealing function for the ball cover plate 201. One side of the first shell 510 is fixedly connected to the second plate 310, and the other side faces the fixed cover plate 203. The second shell 520 is arranged on the two sides of the first shell 510 and forms the shell assembly 500 together with the first shell 510. During installation, the locking seat 200 is first inserted into the hollow sphere formed by the ball cover plate 201, and the limiting seat 300 and the shell assembly 500 are installed. The first shell 510 is sleeved on the ball cover plate 201, the first bolt 410 is inserted into the second insertion hole 102, and then the second bolt 420 is inserted into the first insertion hole 101, so that the second bolt 420 can be connected in the groove 411 of the first bolt 410, and the first bolt 410 cannot be separated from the second insertion hole 102.

[0072] In one of the embodiments, the locking seat 200 further comprises a connecting plate 220, the first plate 210 is connected with the mounting seat 100 through the connecting plate 220, the connecting plate 220 is used to fix the chain and cooperate with the limiting seat 300 to limit the chain. In order to ensure the stability of the connection during traction, a chain connection is generally additionally used between the towing vehicle and the trailer, once the connection part is problematic, the chain setting ensures that the trailer will not fall off the trailer car, thereby ensuring the driving safety; in the embodiment, the hook of the safety chain can be hung on the connecting plate 220, after the mounting seat 100 is connected with the limiting seat 300, the connecting plate 220 can cooperate with the limiting seat 300 to limit the chain, at this time the chain will not be separated from the connecting plate 220, so that the trailer cannot be used for towing the vehicle when not in use, further reducing the risk of theft of the trailer. In the scheme, the connecting plate 220 can be a plate-shaped structure or a column structure matched with the hook on the chain, the shape and size thereof can be selected according to actual needs, which is not limited here.

[0073] The above is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A trailer lock for locking a trailer ball cover, the trailer ball cover comprising a ball cover plate, one side of the ball cover plate being inwardly recessed to form a hollow ball shape, characterised in that, The trailer lock comprises: a mounting seat; a locking seat arranged in the mounting seat, the locking seat extending into the ball cover plate from one end of the mounting seat and abutting against the inner wall of the ball cover plate; and a limiting seat arranged in the mounting seat, the limiting seat being used to limit the disengagement of the ball cover plate and the mounting seat.

2. The trailer lock of claim 1, wherein, The locking seat comprises first plate blocks, two of which are arranged and cross-connected, the outer periphery of the first plate blocks being arc-shaped and abutting against the inner wall of the ball cover plate.

3. The trailer lock of claim 2, wherein, The side of the ball cover plate extends outward to form a baffle, the limiting seat comprises: a second plate block connected with the mounting seat; a limiting block arranged on the side of the second plate block facing the ball cover plate, the limiting block being used to limit the movement of the baffle in the direction away from the hollow.

4. The trailer lock of claim 3, wherein, The trailer lock further comprises a connecting assembly used to detachably connect the limiting seat and the mounting seat.

5. The trailer lock of claim 4, wherein, The mounting seat is provided with a first insertion hole on the side away from the locking seat, the mounting seat is provided with a second insertion hole on the side adjacent to the first insertion hole, the axis of the first insertion hole is perpendicular to the axis of the second insertion hole, the first insertion hole is in communication with the second insertion hole, and the connecting assembly comprises: a first insertion pin arranged on the side of the second plate block facing the mounting seat and inserted into the second insertion hole; a second insertion pin inserted into the first insertion hole and clamped with the first insertion pin.

6. The trailer lock of claim 5, wherein, The outer periphery of the first insertion pin is provided with a groove extending along the circumference of the first insertion pin, and the second insertion pin is inserted into the groove to limit the disengagement of the first insertion pin from the second insertion hole.

7. The trailer lock of claim 5, wherein, The second insertion pin is threadedly connected with the first insertion hole.

8. The trailer lock of claim 3, wherein, The trailer lock further comprises a shell assembly arranged on the side of the limiting seat facing the trailer ball cover and covering the ball cover plate and the mounting seat.

9. The trailer lock of claim 8, wherein, The shell assembly comprises: a first shell arranged in a circular arc shape; two second shells arranged on the two sides of the first shell; wherein the side of the first shell and the second shell facing the second plate block is fixedly connected with the second plate block, and the first shell is sleeved on the side of the ball cover plate away from the mounting seat.

10. The trailer lock of claim 3, wherein, The locking seat further comprises a connecting plate block, the first plate block and the mounting seat are connected through the connecting plate block, and the connecting plate block is used to fix a chain and cooperate with the limiting seat to limit the chain.

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