Semitrailer coupler

Abstract

The utility model belongs to the technical field of semitrailers, and particularly relates to a semitrailer coupler which comprises a compartment, fixing grooves are formed in the bottoms of the two sides of the compartment, bayonet sockets are arranged in inner cavities of the fixing grooves in a sliding mode, fixing hooks are arranged on the surfaces of the ends of the bayonet sockets, rollers are rotationally arranged on the inner walls of the fixing hooks and distributed at equal intervals, and the fixing hooks are connected with the bayonet sockets in a sliding mode. The surface of the fixing hook is in threaded connection with a clamping lead screw, the top of the clamping lead screw is movably connected with a clamping ring, the clamping ring is located on one side of the pin roller, and a wire groove is formed in the surface of the clamping ring; according to the novel rope, in the tensioning process, abrasion between the rope and the fixing hook can be reduced, protection on the rope can be improved, meanwhile, the clamping ring is clamped on the surface of the rope through the wire groove in the surface, the clamping ring can clamp the rope, when the rope breaks, the rope is still clamped through the clamping ring and the fixing hook, the rope can be prevented from being loosened continuously, and the rope is prevented from being damaged. And the rope still has certain binding force on the goods, so that the protection on the goods can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, in particular to a semi-trailer coupler. Background Art

[0002] The semi-trailer hook is a hook used to tie the cargo on the semi-trailer with ropes. The rope is wrapped around the cargo and fixed by the hook after being tightened. The hook is usually fixed on the vehicle body and is widely used in various semi-trailers, with good use effect; through patent search, it is found that the publication number is CN212579731U, which discloses a semi-trailer hook, including a hook and a base, an opening is provided on one side of the hook, a rotating rod is hinged on the opening of the hook, the rotating rod and the hook are reset by a spring, the tail end of the hook is fixedly connected to the bottom beam, the two ends of the bottom beam are provided with through holes perpendicular to the axis of the bottom beam, and a positioning pin is provided in the through hole, the positioning pin is a positioning pin with a cap at one end, the positioning pin is movably inserted into the through hole, one end of the positioning pin with a cap is located on the top surface of the bottom beam, and the other end is fixedly connected to the stud, the stud and the positioning pin are coaxially arranged, and the end of the stud not connected to the positioning pin is a hexagonal concave end, a rectangular groove is provided in the base, the bottom beam is located in the groove, and is slidably connected to the groove, the inner bottom surface of the groove is provided with a threaded hole corresponding to the stud, and the stud is threadedly connected to the threaded hole. The utility model belongs to the technical field of semi-trailers, and the advantages compared with the prior art are: the rope can be tightened and it is labor-saving to use.

[0003] During the use of existing couplers, the friction between the rope and the coupler increases when the rope is tightened, which will aggravate the wear of the rope and cause the rope to break easily. At the same time, the rope will lose its binding force on the cargo after breaking, which will affect the protection of the cargo. In order to solve the above problems, a semi-trailer coupler is proposed in the present application. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a semi-trailer coupler to solve the problems proposed in the background technology.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a semi-trailer coupler, including a carriage, the bottom of both sides of the carriage are provided with fixing grooves, the inner cavity of the fixing groove is slidably provided with a plug socket, and the end surface of the plug socket is provided with a fixing hook;

[0008] The inner wall of the fixing hook is rotatably provided with rollers, and the rollers are equidistantly distributed;

[0009] The surface of the fixing hook is threadedly connected with a clamping screw rod, the top of the clamping screw rod is movably connected with a clamping ring, the clamping ring is located on one side of the roller, and a wire groove is opened on the surface of the clamping ring.

[0010] Preferably, the fixing groove and the plug socket are both convex-shaped structures, and fixing thread holes are penetrated through the surface of the plug socket, and the fixing thread holes are symmetrically arranged.

[0011] Preferably, a corresponding thread hole is opened on the inner wall surface of the fixing groove at a position corresponding to the position of the fixing thread hole, and a locking screw is threadedly connected between the fixing thread hole and the inner cavity of the corresponding thread hole.

[0012] Preferably, a clamping thread hole is formed through the surface of the fixing hook, and the clamping screw rod is threadably connected to the clamping thread hole.

[0013] Preferably, the top of the clamping screw is rotatably connected to a rotating connecting frame, and the top of the rotating connecting frame is connected to a clamping ring.

[0014] Preferably, a connecting pad is welded on the surface of the end of the socket, and the fixing hook is welded on the surface of the connecting pad.

[0015] Preferably, a rotating nut is fixedly welded to the bottom of the clamping screw rod, the rotating nut is in a polygonal structure, and a through-hole is opened through the surface of the rotating nut.

[0016] The above technical solution of the utility model has the following beneficial technical effects:

[0017] 1. In the utility model, when the rope is tightened, the rope contacts the roller on the fixed hook, and the rotation of the roller can guide the rope. During the tightening process, the wear between the rope and the fixed hook can be reduced, and the protection of the rope can be improved.

[0018] 2. In the utility model, after the rope is tightened, the clamping screw is rotated. The clamping screw pushes the clamping ring close to the rope under the action of the surface thread. The clamping ring is clamped on the surface of the rope through the wire groove on the surface. The clamping ring can clamp the rope. When the rope breaks, the rope is still clamped by the clamping ring and the fixed hook, which can prevent the rope from continuing to loosen, so that the rope still has a certain binding force on the goods, which can improve the protection of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a semi-trailer coupler of the utility model;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of a semi-trailer coupler of the utility model;

[0021] Figure 3 This is a schematic diagram of a fixed hook structure of a semi-trailer coupler of the utility model;

[0022] Figure 4 The utility model is a schematic diagram of a clamp ring structure of a semi-trailer coupler.

[0023] Reference numerals:

[0024] 1. Carriage; 2. Fixing groove; 3. Plug socket; 4. Connecting pad; 5. Fixing hook; 6. Roller; 7. Fixing thread hole; 8. Locking screw rod; 9. Clamping thread hole; 10. Clamping screw rod; 11. Rotating connecting frame; 12. Clamping ring; 13. Rotating nut; 14. Through-hole for plugging. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0026] like Figure 1-4 As shown, a semi-trailer coupler proposed by the utility model comprises a carriage 1, a fixing groove 2 is provided at the bottom of both sides of the carriage 1, a plug socket 3 is slidably provided in the inner cavity of the fixing groove 2, and a fixing hook 5 is provided on the end surface of the plug socket 3;

[0027] The inner wall of the fixing hook 5 is rotatably provided with rollers 6, and the rollers 6 are equidistantly distributed.

[0028] It should be noted that the semi-trailer is fixed by the fixing hook 5 and the tying rope, which can facilitate the bundling of the goods on the semi-trailer. When the rope is tightened, the rope contacts the roller 6 on the fixing hook 5, and the rotation of the roller 6 can guide the rope. During the tightening process, the wear between the rope and the fixing hook 5 can be reduced, and the protection of the rope can be improved.

[0029] In this embodiment, if Figure 1 and Figure 2 As shown, the fixing groove 2 and the socket 3 are both convex-shaped structures, and a fixing thread hole 7 is opened through the surface of the socket 3, and the fixing thread holes 7 are symmetrically arranged. Corresponding threads are opened at the inner wall surface of the fixing groove 2 corresponding to the position of the fixing thread hole 7, and the fixing thread hole 7 and the inner cavity of the corresponding thread hole are threadedly connected with a locking screw 8.

[0030] It should be noted that the locking screw 8 can lock the socket 3 .

[0031] In this embodiment, if Figure 1 and Figure 4As shown, a clamping screw 10 is threadedly connected to the surface of the fixing hook 5, and a clamping ring 12 is movably connected to the top of the clamping screw 10. The clamping ring 12 is located on one side of the roller 6, and a wire groove is provided on the surface of the clamping ring 12. A clamping wire hole 9 is penetrated through the surface of the fixing hook 5, and the clamping screw 10 is threadedly connected to the clamping wire hole 9. The top of the clamping screw 10 is rotatably connected to a rotating connecting frame 11, and the top of the rotating connecting frame 11 is connected to the clamping ring 12.

[0032] It should be noted that the rotating connecting frame 11 can be rotatably connected to the clamping ring 12. When the clamping ring 12 clamps the rope, the clamping angle can be adjusted to improve the clamping effect of the rope.

[0033] In this embodiment, if Figure 1 As shown, a connecting pad 4 is welded on the end surface of the socket 3 , and the fixing hook 5 is welded on the surface of the connecting pad 4 .

[0034] It should be noted that the fixing hook 5 is welded to the end of the socket 3 via the connecting pad 4 , and the connecting pad 4 can improve the stability of welding the fixing hook 5 .

[0035] In this embodiment, if Figure 1 and Figure 4 As shown, a rotating nut 13 is fixedly welded to the bottom of the clamping screw rod 10 . The rotating nut 13 is a polygonal structure, and a through-hole 14 is formed on the surface of the rotating nut 13 .

[0036] It should be noted that the clamping screw 10 can be conveniently driven by rotating the nut 13, and the force rod is plugged into the through-hole 14 to increase the drive of the clamping screw 10, making the clamping of the rope more labor-saving.

[0037] The working principle and use process of the utility model are as follows: the semi-trailer is fixed with the lashing rope by the fixing hook 5, which can facilitate the bundling of the cargo on the semi-trailer. When the rope is tightened, the rope contacts the roller 6 on the fixing hook 5, and the rotation of the roller 6 can guide the rope. The wear between the rope and the fixing hook 5 can be reduced during the tightening process, which can improve the protection of the rope. After the rope is tightened, the clamping screw 10 is rotated. The clamping screw 10 pushes the clamping ring 12 close to the rope under the action of the surface thread. The clamping ring 12 is clamped on the surface of the rope through the surface groove. The ring 12 can clamp the rope. When the rope breaks, the clamping ring 12 and the fixing hook 5 can still clamp the rope to prevent the rope from continuing to loosen, so that the rope still has a certain binding force on the goods, which can improve the protection of the goods. The fixing hook 5 is welded to the end of the socket 3 through the connecting pad 4. The connecting pad 4 can improve the stability of the welding of the fixing hook 5. The socket 3 is plugged into the fixing groove 2. The socket 3 can be locked by the locking screw 8, which can facilitate the quick disassembly and assembly of the fixing hook 5, and the fixing hook 5 can be replaced in time after it is damaged.

[0038] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims or the equivalent forms of such scope and boundaries.

Claims

1. A semitrailer coupler, comprising a carriage (1), characterized in that: The bottom of both sides of the carriage (1) are provided with fixing grooves (2), the inner cavity of the fixing grooves (2) is slidably provided with a plug-in seat (3), and the end surface of the plug-in seat (3) is provided with a fixing hook (5); The inner wall of the fixing hook (5) is rotatably provided with rollers (6), and the rollers (6) are equidistantly distributed; The surface of the fixing hook (5) is threadedly connected with a clamping screw (10), and the top of the clamping screw (10) is movably connected with a clamping ring (12), the clamping ring (12) is located on one side of the roller (6), and a wire groove is opened on the surface of the clamping ring (12).

2. A semi-trailer coupler according to claim 1, characterized in that: The fixing groove (2) and the plug socket (3) are both convex-shaped structures, and the surface of the plug socket (3) is penetrated by a fixing thread hole (7), and the fixing thread holes (7) are symmetrically arranged.

3. A semitrailer coupler according to claim 1, characterized in that: A corresponding thread hole is provided at a position on the inner wall surface of the fixing groove (2) corresponding to the position of the fixing thread hole (7), and a locking screw rod (8) is threadedly connected between the fixing thread hole (7) and the inner cavity of the corresponding thread hole.

4. A semitrailer coupler according to claim 1, characterized in that: A clamping thread hole (9) is formed through the surface of the fixing hook (5), and the clamping thread rod (10) is threadably connected to the clamping thread hole (9).

5. A semitrailer coupler according to claim 4, characterized in that: The top of the clamping screw rod (10) is rotatably connected to a rotating connecting frame (11), and the top of the rotating connecting frame (11) is connected to a clamping ring (12).

6. A semitrailer coupler according to claim 5, characterized in that: A connecting pad (4) is welded on the end surface of the socket (3), and the fixing hook (5) is welded on the surface of the connecting pad (4).

7. A semitrailer coupler according to claim 6, characterized in that: A rotating nut (13) is fixedly welded to the bottom of the clamping screw rod (10); the rotating nut (13) is in a polygonal structure; and a through-hole (14) is provided through the surface of the rotating nut (13).

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