Anti-collision device for trailer framework

Abstract

The anti-collision device for the trailer framework comprises a framework body, an adjusting mechanism is fixedly connected to the bottom of the framework body, anti-collision mechanisms are fixedly connected to the two sides of the adjusting mechanism, the adjusting mechanism comprises an installation block fixedly connected to the bottom of the framework body, a sliding groove is formed in the installation block in a clamped mode, and the sliding groove is fixedly connected to the bottom of the framework body. The anti-collision device comprises a frame body, anti-collision plates are arranged on the two sides of the frame body, sliding grooves are formed in the two sides of the frame body, two sets of sliding blocks are connected into the sliding grooves in a sliding mode, two-way threaded rods are rotationally connected into the sliding grooves, and walking threaded holes are formed in one sides of the sliding blocks. The anti-collision device has the advantages that when the two sides of the frame body are collided, the anti-collision plates on the two sides can bear collision; and collision force is buffered under the action of a connecting rod and a second spring, so that the frame body is effectively protected, when the position of the anti-collision plate needs to be adjusted, a first motor can be started to rotate a two-way threaded rod to enable two sets of sliding blocks to drive the anti-collision mechanism to move, the position of the anti-collision plate is changed, and adjustment can be conducted according to different vehicle bodies.

Description

Technical Field

[0001] The utility model relates to the technical field of trailers, in particular to an anti-collision device for a trailer frame. Background Art

[0002] A trailer refers to a vehicle towed by a car but without its own power drive device. It is mainly used to transport large goods that are not easy to split, such as excavators, etc. The fence type is more suitable for pulling fresh goods, such as vegetables, fruits, etc., among which the box type is more suitable for pulling bulk goods and moisture-proof and more valuable goods. In order to protect the goods at the rear of the semi-trailer, the semi-trailer will use a skeleton anti-collision device, which is designed to increase the safety of the vehicle in the event of a collision or accident and to protect the strength of the vehicle body structure.

[0003] The prior art proposes a semi-trailer skeleton anti-collision device, such as Chinese patent [application number CN202121710095.8], which includes a frame on a semi-trailer, and also includes: two symmetrically arranged anti-collision plates, which are respectively arranged on the left and right sides of the frame, wherein two groups of symmetrically arranged sleeves are fixedly installed at the lower end of the frame, and the inner walls of the other ends of the two groups of sleeves are slidably connected with sliding rods, and the ends of the two sliding rods are respectively fixedly connected to the two anti-collision plates, and the two groups of sliding rods are elastically connected to the sealed ends of the sleeves through buffer springs; although the patent can effectively buffer the impact force of the container on the frame through the anti-collision plate, and can also convert and reuse the impact force; however, the above patent has certain defects during use. For example, the position of the anti-collision plate in the above patent is fixed, and the traction body of different trailers is also different. The anti-collision plate of the above patent is difficult to adjust to the body of different widths, and it is not convenient to use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an anti-collision device for a trailer frame.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The camshaft is an axially-coupled device for a vehicle frame, and the camshaft is actuated to move the camshafts to the camshafts to move relative to the vehicle frame.

[0007] Preferably, the limiting mechanism comprises a support plate fixedly connected to the telescopic cylinder, a plurality of placement slots are provided on the top of the support plate, a positioning block is slidably connected inside the placement slot, the positioning block is a ladder-shaped structure, a first spring is fixedly connected inside the placement slot, one side of the first spring is fixedly connected to the positioning block, and the limiting plate is a ladder-shaped structure.

[0008] Preferably, multiple groups of through holes are provided on both sides of the mounting block, the through holes are connected with the slide grooves, the anti-collision mechanism includes a connecting plate, one side of the connecting plate is fixedly connected with a connecting column adapted to the through hole, the other end of the connecting column passes through the through hole and is fixedly connected to the slider, the side of the connecting plate away from the connecting column is fixedly connected with a sleeve, the interior of the sleeve is slidably connected with a connecting rod, the other end of the connecting rod is fixedly connected with an anti-collision plate, the outer side of the connecting rod is sleeved with a second spring, the two ends of the second spring are respectively connected with the sleeve and the anti-collision plate.

[0009] Preferably, a plurality of groups of metal plates are fixedly connected to one side of the connecting plate, the metal plates are arc-shaped structures, and the protruding surfaces thereof are in conflict with the anti-collision plate.

[0010] Preferably, a rubber pad is provided on the surface of the metal plate.

[0011] The beneficial effects of the utility model are as follows: the anti-collision device for the trailer frame provided by the utility model can withstand the collision on both sides of the frame body and buffer the collision force under the action of the connecting rod and the second spring, thereby effectively protecting the frame body. When the position of the anti-collision plate needs to be adjusted, the first motor can be started to rotate the bidirectional threaded rod so that the two sets of sliders drive the anti-collision mechanism to move, thereby changing the position of the anti-collision plate, which can be adjusted according to different vehicle bodies. In the process of the slider moving outward, when the limit plate contacts each set of positioning blocks, the positioning block retracts into the placement groove. If the slider moves inward, the positioning block will block the limit plate so that the slider cannot move inward, which can prevent the anti-collision plate from being subjected to too large a collision force, causing the connecting plate to move inward, so that foreign objects collide with the vehicle body. When the slider needs to be moved inward, the telescopic cylinder can be started to drive the limit mechanism to move downward so that it no longer limits the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a basic structural schematic diagram of the utility model;

[0013] Figure 2 It is a bottom view of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0016] Figure 5 It is a schematic diagram of the anti-collision mechanism structure of the utility model. DETAILED DESCRIPTION

[0017] 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 in 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.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] like Figure 1 - Figure 5 As shown, the utility model provides an anti-collision device for a trailer frame, including a frame body 1, an adjusting mechanism 2 is fixedly connected to the bottom of the frame body 1, and anti-collision mechanisms 3 are fixedly connected to both sides of the adjusting mechanism 2. The adjusting mechanism 2 includes a mounting block 21 fixedly connected to the bottom of the frame body 1, a slide groove 22 is provided inside the mounting block 21, two groups of sliders 23 are slidably connected inside the slide groove 22, a bidirectional threaded rod 24 is rotatably connected inside the slide groove 22, a travel threaded hole is provided on one side of the slider 23, the bidirectional threaded rod 24 is threadedly connected in the travel threaded hole, one side of the slider 23 is fixedly connected to the anti-collision mechanism 3, and the bottom of the slider 23 is fixedly connected to a limiting plate 25. A first motor 26 is fixedly installed on one side of the block 21, and the output end of the first motor 26 is fixedly connected to the bidirectional threaded rod 24 through a coupling. A telescopic cylinder 27 is fixedly installed on the bottom of the mounting block 21, and the piston end of the telescopic cylinder 27 penetrates into the interior of the slide groove 22 and is fixedly connected to a limiting mechanism 28; when the two sides of the frame body are collided, the anti-collision mechanisms 3 on both sides will withstand the collision and buffer the collision force, thereby effectively protecting the frame body. When the position of the anti-collision mechanism 3 needs to be adjusted, the first motor 26 can be started to rotate the bidirectional threaded rod 24 so that the two sets of sliders 23 drive the anti-collision mechanism 3 to move, thereby changing the position of the anti-collision plate 35, which can be adjusted according to different vehicle bodies.

[0020] The limiting mechanism 28 includes a supporting plate 281 fixedly connected to the telescopic cylinder 27, and a plurality of groups of placement grooves 282 are provided on the top of the supporting plate 281. The placement grooves 282 are internally slidably connected with positioning blocks 283, and the positioning blocks 283 are of a ladder-shaped structure. The placement grooves 282 are internally fixedly connected with a first spring 284, and one side of the first spring 284 is fixedly connected to the positioning block 283. The limiting plate 25 is of a ladder-shaped structure; if the slider 23 moves inward, the positioning block 283 will block the limiting plate 25, so that the slider 23 cannot move inward, which can prevent the anti-collision plate 35 from being subjected to too great a collision force, and the connecting plate 31 from moving inward, so that foreign objects collide with the vehicle body. When the slider 23 needs to be moved inward, the telescopic cylinder 27 can be started to drive the limiting mechanism 28 to move downward, so that it no longer limits the limiting plate 25.

[0021] A plurality of through holes 29 are provided on both sides of the mounting block 21, and the through holes 29 are connected to the slide grooves 22. The anti-collision mechanism 3 includes a connecting plate 31, and a connecting column 32 adapted to the through hole 29 is fixedly connected to one side of the connecting plate 31, and the other end of the connecting column 32 passes through the through hole 29 and is fixedly connected to the slider 23. A sleeve 33 is fixedly connected to the side of the connecting plate 31 away from the connecting column 32, and a connecting rod 34 is slidably connected inside the sleeve 33, and an anti-collision plate 35 is fixedly connected to the other end of the connecting rod 34, and a second spring 37 is sleeved on the outer side of the connecting rod 34, and the two ends of the second spring 37 are respectively connected to the sleeve 33 and the anti-collision plate 35; when the two sides of the frame body are collided, the anti-collision plates 35 on both sides will withstand the collision, and buffer the collision force under the action of the connecting rod 34 and the second spring 37, thereby effectively protecting the frame body.

[0022] A plurality of groups of metal plates 36 are fixedly connected to one side of the connecting plate 31. The metal plate 36 is an arc-shaped structure, and the protruding surface is in conflict with the anti-collision plate 35. A rubber pad is provided on the surface of the metal plate 36. When the anti-collision plate 35 is hit, the placement plate will be squeezed toward the connecting plate 31, and the rubber pad on the metal plate 36 will provide a certain buffer. The metal plate 36 is an arc-shaped structure and is made of metal. It has a certain elasticity and can absorb part of the impact energy during the collision.

[0023] Working principle: When the two sides of the frame body are collided, the anti-collision plates 35 on both sides will withstand the collision, and buffer the collision force under the action of the connecting rod 34 and the second spring 37, thereby effectively protecting the frame body. When the position of the anti-collision plate 35 needs to be adjusted, the first motor 26 can be started to rotate the bidirectional threaded rod 24 so that the two groups of sliders 23 drive the anti-collision mechanism 3 to move, thereby changing the position of the anti-collision plate 35, which can be adjusted according to different vehicle bodies. In the process of the slider 23 moving outward, when the limit plate 25 contacts each group of positioning blocks 283, the positioning blocks 283 retract into the placement groove 282. If the slider 23 moves inward, the positioning block 283 will block the limit plate 25, so that the slider 23 cannot move inward. When the collision force on the anti-collision plate 35 is too large, the connecting plate 31 moves inward, so that foreign objects collide with the vehicle body. When the slider 23 needs to be moved inward, the telescopic cylinder 27 can be started to drive the limit mechanism 28 to move downward so that it no longer limits the limit plate 25.

[0024] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-collision device for a trailer frame, comprising a frame body (1), characterized in that: The bottom of the skeleton body (1) is fixedly connected to an adjustment mechanism (2), and both sides of the adjustment mechanism (2) are fixedly connected to anti-collision mechanisms (3). The adjustment mechanism (2) comprises a mounting block (21) fixedly connected to the bottom of the skeleton body (1), a slide groove (22) is provided inside the mounting block (21), two groups of sliders (23) are slidably connected inside the slide groove (22), a bidirectional threaded rod (24) is rotatably connected inside the slide groove (22), a travel threaded hole is provided on one side of the slider (23), and the bidirectional threaded rod (24) is rotatably connected to the inside of the slide groove (22). 4) A threaded connection is formed in the travel threaded hole, one side of the slider (23) is fixedly connected to the anti-collision mechanism (3), the bottom of the slider (23) is fixedly connected to a limit plate (25), one side of the mounting block (21) is fixedly mounted with a first motor (26), the output end of the first motor (26) is fixedly connected to a bidirectional threaded rod (24) via a coupling, a telescopic cylinder (27) is fixedly mounted at the bottom of the mounting block (21), and the piston end of the telescopic cylinder (27) penetrates into the interior of the slide groove (22) and is fixedly connected to a limit mechanism (28).

2. The anti-collision device for a trailer frame according to claim 1, characterized in that: The limiting mechanism (28) comprises a support plate (281) fixedly connected to the telescopic cylinder (27); a plurality of placement grooves (282) are provided on the top of the support plate (281); a positioning block (283) is slidably connected inside the placement groove (282); the positioning block (283) is of a ladder-shaped structure; a first spring (284) is fixedly connected inside the placement groove (282); one side of the first spring (284) is fixedly connected to the positioning block (283); and the limiting plate (25) is of a ladder-shaped structure.

3. The anti-collision device for a trailer frame according to claim 1, characterized in that: A plurality of through holes (29) are provided on both sides of the mounting block (21), the through holes (29) being connected to the slide grooves (22), the anti-collision mechanism (3) comprising a connecting plate (31), one side of the connecting plate (31) being fixedly connected to a connecting column (32) adapted to the through hole (29), the other end of the connecting column (32) passing through the through hole (29) and being fixedly connected to the slide block (23), a sleeve (33) being fixedly connected to the side of the connecting plate (31) away from the connecting column (32), a connecting rod (34) being slidably connected inside the sleeve (33), the other end of the connecting rod (34) being fixedly connected to an anti-collision plate (35), a second spring (37) being sleeved on the outer side of the connecting rod (34), the two ends of the second spring (37) being respectively connected to the sleeve (33) and the anti-collision plate (35).

4. The anti-collision device for a trailer frame according to claim 3, characterized in that: A plurality of groups of metal plates (36) are fixedly connected to one side of the connection plate (31); the metal plates (36) are arc-shaped structures, and the protruding surfaces thereof abut against the anti-collision plates (35).

5. The anti-collision device for a trailer frame according to claim 4, characterized in that: A rubber pad is provided on the surface of the metal plate (36).

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