Trailer traction device

Abstract

The utility model provides a trailer traction device, which is used for connecting a connecting plate and a hook, and comprises a radial plate connected and fixed on the connecting plate, a support fixed on the radial plate, a pressing plate clamped at the top end of the support, a pin and a connecting rod connected on the pin, and the radial plate comprises a first radial plate and a second radial plate, a first pin fixing hole is formed in the first radial plate, a second pin fixing hole is formed in the second radial plate, a hook fixing hole is formed in the hook, the pin penetrates through the first pin fixing hole, the hook fixing hole and the second pin fixing hole, the hook is fixed to the trailer traction device, the top end of the pin is limited through the pressing plate, the pressing plate is opened, and the connecting rod is pulled. And the pin is pulled away from the second pin fixing hole, the hook fixing hole and the first pin fixing hole. The trailer traction device provided by the utility model is easy to operate, and meanwhile, the trailer hook is prevented from being separated from the pin in the vertical direction.

Description

Technical Field

[0001] This utility model relates to the field of traction connector technology, and more specifically, to a trailer traction device. Background Technology

[0002] A towing trailer mainly consists of a tractor unit and a flatbed trailer attached to the rear of the tractor unit. After the flatbed trailer is loaded with goods, the tractor unit is attached to the flatbed trailer using a towing device. However, because the flatbed trailer is loaded with heavy objects, it requires the coordinated operation of two or more people to complete the docking between the flatbed trailer and the tractor unit, resulting in low efficiency and high operational difficulty. Furthermore, the towing hook directly hooks onto the tractor unit, which is prone to detachment and instability.

[0003] The above-mentioned problems urgently need to be solved, so this utility model provides a trailer towing device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a trailer towing device in which, after the pin is connected to the trailer hook, the pressure plate limits the pin under the pressure plate. When the hook is removed, the connecting rod is pulled to directly control the pin. This makes the device easy to operate and prevents the trailer hook from detaching from the pin in the vertical direction.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model provides a dynamic traction device for connecting a connecting plate and a hook. The trailer traction device includes a spoke connected to and fixed on the connecting plate, a support fixed on the spoke, a pressure plate engaged with the top of the support, a pin, and a connecting rod connected to the pin. The spoke includes a first spoke and a second spoke. A first pin fixing hole is opened in the first spoke, and a second pin fixing hole is opened in the second spoke. A hook fixing hole is opened on the hook. The pin passes through the first pin fixing hole, the hook fixing hole, and the second pin fixing hole to fix the hook on the trailer traction device. The pressure plate limits the top of the pin. When the pressure plate is opened, the connecting rod is pulled, and the pin is pulled out from the second pin fixing hole, the hook fixing hole, and the first pin fixing hole.

[0006] Preferably, the support includes a first support near the connecting plate and a second support away from the connecting plate. The first support has a first support opening at its top and a first support fixing hole on each side of the first support opening. The second support has a second support opening at its top and a second support fixing hole on each side of the second support opening.

[0007] Preferably, the first support and the second support have the same structure, and the first support and the second support are symmetrically arranged at both ends of the pressure plate.

[0008] Preferably, the pressure plate has a first pressure plate fixing hole and a second pressure plate fixing hole at both ends. Both the first pressure plate fixing hole and the second pressure plate fixing hole are provided with pressure plate connecting pins. The pressure plate connecting pin has a pressure plate connecting pin fixing hole at one end, and a cotter pin is provided in the pressure plate connecting pin fixing hole.

[0009] Preferably, the pressure plate connecting pin fixing hole is pulled out, the pressure plate connecting pin is removed, the pressure plate is rotated counterclockwise around one end of the first pressure plate fixing hole, the top of the pin is no longer limited, the connecting rod is pulled, and the hook is disengaged from the pin.

[0010] Preferably, by pushing the connecting rod, the pin moves downward into the first pin fixing hole, the hook fixing hole, and the second pin fixing hole, fixing the hook to the pin. The pressure plate is rotated clockwise around one end of the first pressure plate fixing hole, and the other end of the pressure plate is fitted into the second support opening. The pressure plate connecting pin is installed in the second pressure plate fixing hole, and the cotter pin is fitted into the pressure plate connecting pin fixing hole, limiting the top end of the pin under the pressure plate.

[0011] Preferably, the pressure plate connecting pin passes through the first support opening and the first pressure plate fixing hole, the cotter pin passes through the pressure plate connecting pin fixing hole to fix one end of the pressure plate on the first support, the pressure plate connecting pin passes through the second support opening and the second pressure plate fixing hole, and the cotter pin passes through the pressure plate connecting pin fixing hole to fix the other end of the pressure plate on the second support.

[0012] Preferably, the pin has a pin fixing hole at its top end, the connecting rod has a connecting rod opening at its bottom end, connecting rod fixing holes are provided on both sides of the connecting rod opening, and a connecting rod connecting pin is provided in the connecting rod fixing hole.

[0013] Preferably, the connecting pin passes through the connecting rod fixing hole and the pin fixing hole to connect the pin to the connecting rod.

[0014] The beneficial effects of this utility model are as follows: the pressure plate limits the top of the pin, and when the pressure plate is opened, the connecting rod can be pulled directly in the trailer cab. The pin is pulled out from the second pin fixing hole, the hook fixing hole, and the first pin fixing hole. This makes it easy to operate and prevents the trailer hook from coming off the pin in the vertical direction. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] In the picture: Figure 1 This is a schematic diagram of the working state of the trailer towing device of this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the upward pulling of the pin in the mid-trailer traction device;

[0018] Figure 3 for Figure 1 Right view of the mid-trailer traction device;

[0019] Figure 4 for Figure 3 A magnified view of part A in the image.

[0020] 1. Connecting plate; 2. Hook; 21. Hook fixing hole; 3. Trailer towing device; 31. Spoke; 311. First spoke; 3111. First pin fixing hole; 312. Second spoke; 3121. Second pin fixing hole; 32. Support; 321. First support; 3211. First support opening; 3212. First support fixing hole; 322. Second support; 3221. Second support opening; 3222. Second support fixing hole; 33. Pressure plate; 331. First pressure plate fixing hole; 332. Second pressure plate fixing hole; 333. Pressure plate connecting pin; 3331. Pressure plate connecting pin fixing hole; 3332. Cotter pin; 34. Pin; 341. Pin fixing hole; 35. Connecting rod; 351. Connecting rod opening; 352. Connecting rod fixing hole; 353. Connecting rod connecting pin. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] like Figure 1 As shown, this utility model provides a trailer towing device 3 for connecting a trailer and a flatbed truck. The trailer is provided with a connecting plate 1, and the flatbed truck is provided with a hook 2. The hook 2 has a hook fixing hole 21.

[0023] like Figure 2-4 As shown, the trailer towing device 3 includes a spoke 31 connected to and fixed on a connecting plate 1, a support 32 fixed on the spoke 31, a pressure plate 33 engaged with the top of the support 32, a pin 34, and a connecting rod 35 connected to the pin 34.

[0024] In this embodiment, specifically: the spoke 31 includes a first spoke 311 and a second spoke 312. The first spoke 311 has a first pin fixing hole 3111 and the second spoke 312 has a second pin fixing hole 3121.

[0025] The pin 34 passes through the first pin fixing hole 3111, the hook fixing hole 21, and the second pin fixing hole 3121, fixing the hook 2 to the trailer towing device 3. The pressure plate 33 limits the top of the pin 34. When the pressure plate 33 is opened, the connecting rod 35 is pulled, and the pin 34 is pulled out from the second pin fixing hole 3121, the hook fixing hole 21, and the first pin fixing hole 3111.

[0026] In this embodiment, specifically: the support 32 includes a first support 321 near the connecting plate 1 and a second support 322 away from the connecting plate 1. The first support 321 has a first support opening 3211 at its top, and first support fixing holes 3212 are respectively opened on both sides of the first support opening 3211. The second support 322 has a second support opening 3221 at its top, and second support fixing holes 3222 are respectively opened on both sides of the second support opening 3221.

[0027] In this embodiment, specifically: the first support 321 and the second support 322 have the same structure, and the first support 321 and the second support 322 are symmetrically arranged at both ends of the pressure plate 33.

[0028] In this embodiment, specifically: the pressure plate 33 has a first pressure plate fixing hole 331 and a second pressure plate fixing hole 332 at both ends. The first pressure plate fixing hole 331 and the second pressure plate fixing hole 332 are both provided with pressure plate connecting pins 333. The pressure plate connecting pin 333 has a pressure plate connecting pin fixing hole 3331 at one end, and a cotter pin 3332 is provided in the pressure plate connecting pin fixing hole 3331.

[0029] In this embodiment, specifically: pull out the fixing hole 3331 of the pressure plate connecting pin, remove the pressure plate connecting pin 333, rotate the pressure plate 33 counterclockwise around one end of the first pressure plate fixing hole 331, the top of the pin 34 is no longer limited, pull the connecting rod 35, and the hook 2 is disengaged from the pin 34.

[0030] In this embodiment, specifically: the connecting rod 35 is pushed, and the pin 34 is inserted downward into the first pin fixing hole 3111, the hook fixing hole 21, and the second pin fixing hole 3121, fixing the hook 2 onto the pin 34. The pressure plate 33 is rotated clockwise around one end of the first pressure plate fixing hole 331, and the other end of the pressure plate 33 is fitted into the second support opening 3221. The pressure plate connecting pin 333 is installed in the second pressure plate fixing hole 332, and the cotter pin 3332 is fitted into the pressure plate connecting pin fixing hole 3331, limiting the top end of the pin 34 under the pressure plate 33.

[0031] In this embodiment, specifically: the pressure plate connecting pin 333 passes through the first support opening 3211 and the first pressure plate fixing hole 331, and the cotter pin 3332 passes through the pressure plate connecting pin fixing hole 3331 to fix one end of the pressure plate 33 on the first support 321; the pressure plate connecting pin 333 passes through the second support opening 3221 and the second pressure plate fixing hole 332, and the cotter pin 3332 passes through the pressure plate connecting pin fixing hole 3331 to fix the other end of the pressure plate 33 on the second support 322.

[0032] In this embodiment, specifically: the top of the pin 34 is provided with a pin fixing hole 341, the bottom of the connecting rod 35 is provided with a connecting rod opening 351, the two sides of the connecting rod opening 351 are provided with connecting rod fixing holes 352, and the connecting rod fixing holes 352 are provided with connecting rod connecting pins 353.

[0033] In this embodiment, specifically: the connecting pin 353 passes through the connecting rod fixing hole 352 and the pin fixing hole 341, and connects the pin 34 to the connecting rod 35.

[0034] The working process of a trailer towing device 3 according to this utility model:

[0035] First, pull open the cotter pin 3332 and remove the pressure plate connecting pin 3331. Rotate the pressure plate 33 counterclockwise to open it. Next, pull the connecting rod 35. The connecting rod 35 drives the pin 34 upward. Then, place the hook 2 between the spokes 32 and release the connecting rod 35. The pin 34 passes through the hook fixing hole 21 and is inserted downward into the spoke 31 under the force of gravity. Fix the hook 2 on the pin 34. Finally, rotate the pressure plate 33 clockwise to close it. Insert the pressure plate connecting pin 3331 into the pressure plate 33 and insert the cotter pin 3332 into the second pressure plate fixing hole 332. Limit the pin 34 under the pressure plate 33.

[0036] The beneficial effects of this utility model of a trailer towing device 3 are as follows:

[0037] 1. The linkage 35 is directly controlled from the trailer control room. The linkage 35 drives the pin 34 to fix the hook 2 on the pin 34, which is easy to operate.

[0038] 2. Rotate the pressure plate 33 clockwise to close it, insert the pressure plate connecting pin 3331 into the pressure plate 33, fix the cotter pin 3332 in the second pressure plate fixing hole 332, and limit the pin 34 under the pressure plate 33 to prevent the trailer hook 2 from coming off the pin 34 in the vertical direction.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A trailer towing device for connecting a connecting plate (1) and a hook (2), characterized in that: The trailer towing device (3) includes a spoke (31) connected to the connecting plate (1), a support (32) fixed to the spoke (31), a pressure plate (33) engaged with the top of the support (32), a pin (34), and a connecting rod (35) connected to the pin (34). The spoke (31) includes a first spoke (311) and a second spoke (312). The first spoke (311) has a first pin fixing hole (3111), and the second spoke (312) has a second pin fixing hole (3121). The hook (2) has a hook fixing hole (21). The pin (34) passes through the first pin fixing hole (3111), the hook fixing hole (21), and the second pin fixing hole (3121) to fix the hook (2) on the trailer towing device (3). The pressure plate (33) limits the top of the pin (34). When the pressure plate (33) is opened, the connecting rod (35) is pulled, and the pin (34) is pulled out from the second pin fixing hole (3121), the hook fixing hole (21), and the first pin fixing hole (3111).

2. The trailer towing device according to claim 1, characterized in that: The support (32) includes a first support (321) on the side close to the connecting plate (1) and a second support (322) on the side away from the connecting plate (1). The first support (321) has a first support opening (3211) at its top end, and a first support fixing hole (3212) is also provided on both sides of the first support opening (3211). The second support (322) has a second support opening (3221) at its top end, and a second support fixing hole (3222) is also provided on both sides of the second support opening (3221).

3. The trailer towing device according to claim 2, characterized in that: The first support (321) and the second support (322) have the same structure, and the first support (321) and the second support (322) are symmetrically arranged at both ends of the pressure plate (33).

4. The trailer towing device according to claim 3, characterized in that: The pressure plate (33) has a first pressure plate fixing hole (331) and a second pressure plate fixing hole (332) at both ends. Both the first pressure plate fixing hole (331) and the second pressure plate fixing hole (332) are provided with pressure plate connecting pins (333). The pressure plate connecting pin (333) has a pressure plate connecting pin fixing hole (3331) at one end, and a cotter pin (3332) is provided in the pressure plate connecting pin fixing hole (3331).

5. The trailer towing device according to claim 4, characterized in that: Pull out the fixing hole (3331) of the pressure plate connecting pin, remove the pressure plate connecting pin (333), rotate the pressure plate (33) counterclockwise around one end of the first pressure plate fixing hole (331), the top of the pin (34) is no longer limited, pull the connecting rod (35), and the hook (2) disengages from the pin (34).

6. The trailer towing device according to claim 4, characterized in that: Push the connecting rod (35), and the pin (34) will enter the first pin fixing hole (3111), the hook fixing hole (21), and the second pin fixing hole (3121) downwards, fixing the hook (2) on the pin (34). Rotate the pressure plate (33) clockwise around one end of the first pressure plate fixing hole (331), and the other end of the pressure plate (33) will be fitted into the second support opening (3221). Install the pressure plate connecting pin (333) in the second pressure plate fixing hole (332), and fit the cotter pin (3332) in the pressure plate connecting pin fixing hole (3331), limiting the top of the pin (34) under the pressure plate (33).

7. The trailer towing device according to claim 4, characterized in that: The pressure plate connecting pin (333) passes through the first support opening (3211) and the first pressure plate fixing hole (331), and the cotter pin (3332) passes through the pressure plate connecting pin fixing hole (3331) to fix one end of the pressure plate (33) to the first support (321). The pressure plate connecting pin (333) passes through the second support opening (3221) and the second pressure plate fixing hole (332) to fix the other end of the pressure plate (33) to the second support (322).

8. The trailer towing device according to claim 1, characterized in that: The pin (34) has a pin fixing hole (341) at the top, the connecting rod (35) has a connecting rod opening (351) at the bottom, the connecting rod opening (351) has connecting rod fixing holes (352) on both sides, and the connecting rod fixing holes (352) have connecting rod connecting pins (353) inside.

9. The trailer towing device according to claim 8, characterized in that: The connecting pin (353) passes through the connecting rod fixing hole (352) and the pin fixing hole (341) to connect the pin (34) to the connecting rod (35).

Images