Height adjustable tow vehicle hitching attachment and accessories

Abstract

The utility model discloses the height adjustable trailer vehicle traction connecting device and annex belong to trailer connecting device technical field, including support plate and the fixed block of fixed connection in support plate front side, still be provided with the rotating shaft of rotating connection in fixed block, the rotating link of one end with rotating shaft fixed connection, the convex block of being provided with traction block, and the fixed link of two ends respectively rotating connection in rotating link other end and convex block, and the buckle of device is additionally equipped, and the buckle is used for with rotating shaft selectively clamped to lock rotating shaft. The utility model still can include quick release mechanism, and quick release mechanism includes the mounting plate of being fixed in support plate back wall and is equipped with the connecting rod of installation slot, still be equipped with the sliding slot on connecting rod, and the convex link of slidingly being provided with in sliding slot, and the convex link is used for clamping mounting plate, and is fixed through screw thread connection in connecting rod.

Description

Technical Field

[0001] This utility model relates to the technical field of trailer connection devices, and in particular to an adjustable height trailer traction connection device and accessories. Background Technology

[0002] Trailer vehicles play a vital role in modern logistics and leisure travel, and the towing coupling is the component that safely connects the towing vehicle and the towed vehicle. Common towing couplings on the market often have a fixed towing block height. This fixed-height structure reveals significant limitations when dealing with towing or towed vehicles of varying chassis heights. For example, when using a high-chassis off-road vehicle to tow a low-chassis trailer, the height mismatch can cause the trailer to tilt forward, or conversely, it can cause it to tilt backward. Both of these postures severely impact aerodynamic performance and handling stability during driving.

[0003] Especially when driving on slopes, potholes and complex road conditions, a fixed towing height cannot dynamically adapt to changes in road surface, which can easily cause the towing bar to scrape against the ground or the vehicle, and even increase the risk of disengagement in extreme cases. Existing technology lacks a height adjustment solution that is simple in structure, easy to adjust and can be reliably locked to meet the needs of different vehicle models and complex road conditions.

[0004] Therefore, this utility model proposes an adjustable-height trailer towing connection device and accessories to address the shortcomings of the prior art. Summary of the Invention

[0005] In view of the problems of the fixed height of the towing block in the existing adjustable height trailer traction connection device and accessories, which leads to poor adaptability to different vehicle models and road conditions, and the inconvenience of adjustment and locking structure, this utility model aims to provide an adjustable height trailer traction connection device and accessories with improved structure that can effectively solve the above problems.

[0006] This utility model provides an adjustable height trailer traction connection device and accessories, including: a support plate and a fixing block fixedly connected to the front side of the support plate; the device also includes a rotating shaft, a rotating rod, a protrusion, a fixing rod and a buckle, and the rotating shaft is rotatably connected to the fixing block.

[0007] Furthermore, one end of the rotating rod is fixedly connected to the rotating shaft, and a traction block is fixedly connected to the protrusion. The two ends of the fixed rod are respectively rotatably connected to the other end of the rotating rod and the protrusion. The rotating shaft, rotating rod, fixed rod and protrusion together constitute a set of rotary linkage mechanism for adjusting the height of the traction block. The buckle is used to selectively engage with the rotating shaft to lock the rotating shaft, thereby fixing the height of the traction block.

[0008] Preferably, the device further includes a quick-release mechanism for detachably installing the support plate to the vehicle. The quick-release mechanism includes a mounting plate fixed to the rear wall of the support plate and a connecting rod having a mounting groove for the mounting plate to slide into.

[0009] Preferably, in the above-mentioned quick-release mechanism, the connecting rod is also provided with a sliding groove, and a protruding rod is slidably arranged in the sliding groove. The protruding rod can slide in the sliding groove to selectively lock the mounting plate located in the mounting groove and prevent it from slipping off.

[0010] Preferably, to make the protruding rod more reliably fixed and prevent it from loosening during vibration, the quick-release mechanism also includes a screw, which is threaded onto the connecting rod and used to abut against the protruding rod after tightening to fix its position.

[0011] Preferably, for ease of manufacturing and installation, the quick-release mechanism also includes a connecting plate, which is fixed to the rear wall of the support plate, and the mounting plate exists as part of the connecting plate structure.

[0012] Preferably, in order to make the rotating shaft rotate more smoothly and easier to assemble, the inner wall of the fixing block is provided with a rotating groove, and the rotating shaft is accommodated in the rotating groove for rotation.

[0013] Preferably, in order to achieve reliable locking of the rotating shaft, the device further includes a fixing plate, and the buckle is movably installed on the fixing plate; the outer peripheral wall of the rotating shaft is provided with a limiting groove that cooperates with the buckle, and the buckle can be moved into the limiting groove to achieve locking.

[0014] This utility model has the following beneficial effects: 1. This utility model solves the technical problem of existing traction devices having a fixed height and being unable to adapt to different vehicle models by setting up a rotating linkage mechanism consisting of a rotating shaft, a rotating rod, a fixed rod, and a protrusion, and locking it with a buckle and a limiting groove. It achieves the technical effect of being able to conveniently adjust the height of the traction block and enhancing its adaptability to different vehicle models and complex road conditions.

[0015] 2. This utility model solves the technical problems of cumbersome, time-consuming and labor-intensive installation and disassembly of existing traction devices by setting up a quick-release mechanism consisting of an installation plate, a connecting rod, an installation groove, a sliding and locking protruding rod, and screws for fastening. It achieves the technical effects of enabling quick installation and disassembly of the entire device, improving usage efficiency, and facilitating storage and transportation. Attached Figure Description

[0016] Figure 1 This is a front perspective view of the adjustable height trailer traction connection device and accessories proposed in this utility model; Figure 2 This is a top view of the adjustable-height trailer traction connection device and accessories proposed in this utility model; Figure 3 This is a partial structural diagram of the towing block of the adjustable-height trailer traction connection device and accessories proposed in this utility model; Figure 4 This is a partial structural diagram of the connecting rod of the adjustable-height trailer traction connection device and accessories proposed in this utility model.

[0017] Legend: 1. Support plate; 2. Quick release mechanism; 201. Connecting plate; 202. Mounting plate; 203. Connecting rod; 204. Mounting groove; 205. Sliding groove; 206. Protruding rod; 207. Screw; 3. Fixing block; 4. Rotating groove; 5. Rotating shaft; 6. Limiting groove; 7. Fixing plate; 8. Buckle; 9. Rotating rod; 10. Fixing rod; 11. Protrusion; 12. Traction block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Example: Please refer to Figures 1 to 4 This utility model provides an adjustable height trailer traction connection device and accessories, which aims to solve the problem that the existing adjustable height trailer traction connection device and accessories include a support plate 1 and a fixing block 3 fixedly connected to the front side of the support plate 1. The support plate 1 is used as the mounting base and bearing platform of the entire device, and the fixing block 3 is used to install and support the key components of the height adjustment mechanism.

[0020] To solve the above-mentioned technical problems, the technical solution of this embodiment is that the adjustable height trailer towing connection device and accessories also include a height adjustment mechanism and a quick release mechanism 2. These two mechanisms cooperate with the support plate 1 and the fixing block 3 respectively to realize the functions of height adjustment and quick installation.

[0021] Please refer to Figure 1 , Figure 3 and Figure 4The rotating shaft 5 is rotatably connected to the fixed block 3. The inner wall of the fixed block 3 is preferably provided with a rotating groove 4. The rotating shaft 5 is housed in the rotating groove 4 and rotates. One end of the rotating rod 9 is fixedly connected to the rotating shaft 5 so that it rotates together with the rotating shaft 5. A traction block 12 is fixedly connected to the protrusion 11. The two ends of the fixed rod 10 are rotatably connected to the other end of the rotating rod 9 and the protrusion 11, respectively, thus forming a linkage transmission mechanism. When the rotating shaft 5 rotates, the protrusion 11 is driven to swing through the transmission of the rotating rod 9 and the fixed rod 10, thereby changing the height of the traction block 12. In order to lock the traction block 12 at the desired height, the device also includes a latch 8 for selectively engaging with the rotating shaft 5; Specifically, the outer peripheral wall of the rotating shaft 5 is provided with a limiting groove 6 that cooperates with the buckle 8, and a fixing plate 7 is provided to be fixed on the support plate 1 or the fixing block 3. The buckle 8 is movably installed on the fixing plate 7. After the buckle 8 moves, it can engage with the inner wall of the limiting groove 6, thereby locking the rotating shaft 5 and preventing it from rotating.

[0022] Please refer to Figure 1 , Figure 2 and Figure 4 The quick-release mechanism 2 is used to detachably install the support plate 1 to the vehicle. The quick-release mechanism 2 includes a connecting rod 203, which is a component for fixing to the vehicle. The inner wall of the connecting rod 203 is provided with a mounting groove 204. The quick-release mechanism 2 also includes a mounting plate 202, which is fixed to the rear wall of the support plate 1. The shape and size of the mounting plate 202 are adapted to the mounting groove 204. The mounting plate 202 can slide into the mounting groove 204. Preferably, a connecting plate 201 is fixed to the rear wall of the support plate 1, and the mounting plate 202 is a part of the connecting plate 201. In order to lock the mounting plate 202, the connecting rod 203 is also provided with a sliding groove 205. A protruding rod 206 is slidably provided in the sliding groove 205. The protruding rod 206 can slide in the sliding groove 205 and selectively lock the mounting plate 202 located in the mounting groove 204 to prevent the mounting plate 202 from sliding out of the mounting groove 204. This mating structure, in which the mounting plate 202 slides into the mounting groove 204 and is then locked in place by the sliding rod 206, ensures the ease and stability of installing the support plate 1. To further prevent the protruding rod 206 from moving accidentally, the quick-release mechanism 2 also includes a screw 207, which is threaded onto the connecting rod 203 and used to abut against and fix the position of the protruding rod 206, thereby achieving a secure lock on the support plate 1.

[0023] As a preferred embodiment, to make the rotation of the rotating shaft 5 smoother and easier to install, please refer to... Figure 1 The inner wall of the fixed block 3 is provided with a rotating groove 4, and the rotating shaft 5 is housed in the rotating groove 4 for rotation. As another preferred embodiment, in order to achieve reliable locking of the rotating shaft 5, please refer to... Figure 1 The device also includes a fixing plate 7, and a buckle 8 is movably installed on the fixing plate 7. The outer peripheral wall of the rotating shaft 5 is provided with a limiting groove 6 that cooperates with the buckle 8. The buckle 8 can selectively engage in the limiting groove 6 to fix the rotating shaft 5. As another preferred embodiment, to achieve quick installation and removal of the support plate 1, please refer to... Figure 1 and Figure 2 The device also includes a quick-release mechanism 2, which includes a mounting plate 202 fixed to the rear wall of the support plate 1, and a connecting rod 203 with a mounting groove 204 for the mounting plate 202 to slide into. In the above-described embodiment of the quick-release mechanism 2, more preferably, the quick-release mechanism 2 further includes a connecting plate 201, which is fixed to the rear wall of the support plate 1, and the mounting plate 202 is a part of the connecting plate 201. In the above-described embodiment of the quick-release mechanism 2, in order to lock the mounting plate 202, please refer to... Figure 2 and Figure 4 The connecting rod 203 is also provided with a sliding groove 205, and a protruding rod 206 is slidably arranged in the sliding groove 205. The protruding rod 206 is used to slide and lock the mounting plate 202 located in the mounting groove 204. In the above-described embodiment of the protruding rod 206, to prevent the protruding rod 206 from accidentally becoming loose, please refer to... Figure 2 The quick-release mechanism 2 also includes a screw 207, which is threaded onto the connecting rod 203 and is used to tighten and abut against the position of the protruding rod 206.

[0024] Working principle: When in operation, the rotating shaft 5 rotates in the inner wall of the rotating groove 4 of the fixed block 3 on the front side of the support plate 1, thereby driving the rotating rod 9 to rotate. Then, through the fixed rod 10, the protrusion 11 rotates to adjust the height, so that the traction block 12 can be adjusted in height. Then, through the buckle 8, the buckle 8 moves to the inner wall of the limiting groove 6 and connects with the fixed plate 7, thereby fixing the rotating shaft 5 so that it cannot rotate, achieving the effect of adjusting the traction block 12, adapting to different vehicle models, adapting to complex road conditions, and enhancing practicality. The support plate 1 can be quickly installed using the quick-release mechanism 2. The mounting plate 202 slides into the mounting groove 204 on the inner wall of the connecting rod 203 via the connecting plate 201 on the rear wall of the support plate 1, thereby allowing the support plate 1 to be installed. The protruding rod 206 slides on the inner wall of the sliding groove 205, thereby locking the mounting plate 202 and fixing the support plate 1. Finally, the protruding rod 206 is fixed in place by the screw 207, thus achieving the effect of quick installation, improving efficiency, and facilitating storage and transportation.

Claims

1. An adjustable-height trailer towing connection device and accessories, comprising a support plate (1), wherein a fixing block (3) is fixedly connected to the front side of the support plate (1), characterized in that, The device further includes: a rotating shaft (5) rotatably connected to the fixed block (3); a rotating rod (9) one end of which is fixedly connected to the rotating shaft (5); a protrusion (11) on which a traction block (12) is fixedly connected; a fixed rod (10) the two ends of which are rotatably connected to the other end of the rotating rod (9) and the protrusion (11); and a buckle (8) for selectively engaging with the rotating shaft (5) to lock the rotating shaft (5).

2. The adjustable-height trailer traction connection device and accessories according to claim 1, characterized in that, The device also includes a quick-release mechanism (2) for detachably installing the support plate (1) to the vehicle. The quick-release mechanism (2) includes a mounting plate (202) fixed to the rear wall of the support plate (1) and a connecting rod (203) having a mounting groove (204) for the mounting plate (202) to slide into.

3. The adjustable-height trailer traction connection device and accessories according to claim 2, characterized in that, The connecting rod (203) is also provided with a sliding groove (205), and a protruding rod (206) is slidably arranged in the sliding groove (205). The protruding rod (206) can slide in the sliding groove (205) to selectively lock the mounting plate (202) located in the mounting groove (204).

4. The adjustable-height trailer traction connection device and accessories according to claim 3, characterized in that, The quick-release mechanism (2) also includes a screw (207) which is threaded to the connecting rod (203) and is used to abut against and fix the position of the protruding rod (206).

5. The adjustable-height trailer traction connection device and accessories according to claim 2, characterized in that, The quick-release mechanism (2) also includes a connecting plate (201), which is fixed to the rear wall of the support plate (1), and the mounting plate (202) is part of the connecting plate (201).

6. The adjustable-height trailer traction connection device and accessories according to claim 1, characterized in that, The inner wall of the fixed block (3) is provided with a rotating groove (4), and the rotating shaft (5) is housed in the rotating groove (4) for rotation.

7. The adjustable-height trailer traction connection device and accessories according to claim 1, characterized in that, The device also includes a fixing plate (7), and the buckle (8) is movably mounted on the fixing plate (7); the outer peripheral wall of the rotating shaft (5) is provided with a limiting groove (6) that cooperates with the buckle (8).

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