Adjustable trailer coupling device

Abstract

The utility model relates to the technical fields of trailer connecting device discloses adjustable trailer connecting device, including first connecting assembly, second connecting assembly and connecting component, first connecting assembly includes first fastening plate, second fastening plate and a plurality of fasteners, and fastener is used for making first fastening plate and second fastening plate present fastening or loosening state, and first connecting assembly is adjustable arrangement along the longitudinal direction of stand column, second connecting assembly includes inner connecting plate, outer connecting plate and connecting fastener, and inner connecting plate is assembled with connecting component, and outer connecting plate is assembled with vehicle connecting component, and vehicle connecting component is used for assembling with vehicle, and connecting fastener is used for making inner connecting plate and outer connecting plate present fastening or loosening state. The assembly position of first connecting assembly is adjustable along the longitudinal direction of stand column, enhances the adaptation limit of first connecting assembly and trailer main body, is more suitable, and through inner connecting plate and outer connecting plate realizes the angle adjustment between trailer main body and vehicle, satisfies different advancing needs, and the adaptability is wider and more flexible.

Description

Technical Field

[0001] This utility model patent relates to the technical field of trailer connection devices, and more specifically, to an adjustable trailer connection device. Background Technology

[0002] Trailers can be used for transportation, saving time and effort. Common trailers include those designed for manual movement and those for electric movement. In the case of electric movement, the trailer is usually assembled with a vehicle to enable power to drive the trailer and thus achieve transportation.

[0003] Currently, to facilitate the coordination between the trailer body and the vehicle, a trailer connection device is generally used to achieve the relative assembly of the trailer body and the vehicle. For example, the prior patent with authorization announcement number CN220721301U discloses a trailer connection device, including: a vehicle fixing unit, including a fixing seat for fixing on the vehicle, the fixing seat having at least one fixing part, the fixing part having a fixing hole; a trailer connection unit, including at least one connecting rod and a trailer fixing assembly installed at the rear end of the connecting rod for connecting the trailer, the front end of the connecting rod having a connecting hole; and a quick-release unit for connecting the vehicle fixing unit and the trailer connection unit, which includes a pin and a limiting member provided on the pin; wherein, when the front end of the connecting rod is installed to the fixing part, the pin passes through the connecting hole and the fixing hole and is detachably connected to the limiting member.

[0004] In the prior art, the mounting base is fixedly arranged with the vehicle, and the connecting rod is fixedly assembled with the trailer fixing components. This makes it impossible to adjust the assembly position of the trailer body and the trailer connection device, as well as the relative angle between the vehicle and the trailer body, resulting in insufficient adaptability of the trailer connection device. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable trailer connection device, which aims to solve the problem of insufficient adaptability of existing trailer connection devices.

[0006] This utility model is implemented as follows: an adjustable trailer connection device includes a first connection assembly, a second connection assembly, and a connection component. The two ends of the connection component are respectively assembled with the first connection assembly and the second connection assembly. The first connection assembly includes a first fastening plate, a second fastening plate, and multiple fasteners. The first and second fastening plates are used to clamp the uprights of the trailer body. The fasteners are used to fasten or loosen the first and second fastening plates. The first connection assembly is adjustable along the longitudinal direction of the uprights. The second connection assembly includes an inner connecting plate, an outer connecting plate, and a connection component. The inner connecting plate is assembled with the connection component, and the outer connecting plate is assembled with the vehicle connection component. The vehicle connection component is used to assemble with a vehicle. The inner and outer connecting plates are interlocked and corresponding. The connection component penetrates the inner and outer connecting plates and is used to fasten or loosen the inner and outer connecting plates.

[0007] Furthermore, the connecting assembly includes a connecting shaft and a shaft nut. The connecting shaft passes through the second fastening plate and the inner connecting plate respectively. The shaft nut is sleeved on the connecting shaft and is used to make the connecting shaft and the inner connecting plate either in a fastened or loosened state.

[0008] Furthermore, the connecting assembly includes a balancing component, which is sleeved on the connecting shaft, and the balancing sleeve and the connecting shaft are movably arranged. The second fastening plate and the inner connecting plate are respectively embedded at both ends of the balancing sleeve, and the balancing sleeve and the inner connecting plate are movably arranged. The second fastening plate swings under external force, causing the balancing component to rotate.

[0009] Furthermore, the connecting assembly includes a stop plate, the connecting shaft passes through the stop plate, the connecting shaft has a threaded portion, the shaft nut is threadedly connected to the threaded portion, the stop plate is arranged adjacent to the threaded portion, the stop plate is located between the threaded portion and the balance member, and the stop plate is used to restrict the shaft nut from continuing to move toward the balance member.

[0010] Furthermore, the connecting assembly includes a protective shell, through which both the connecting shaft and the balancing member pass, and the two sides of the protective shell are respectively arranged in abutment against the second fastening plate and the inner connecting plate.

[0011] Furthermore, the protective shell includes a first protective plate and a second protective plate, the first protective plate and the second protective plate are respectively arranged to extend longitudinally, the first protective plate is arranged to lay flat and abut against the second fastening plate, and the second protective plate is arranged to lay flat and abut against the inner connecting plate.

[0012] Furthermore, the first fastening plate includes a first abutment plate, two first side plates, and two first fixing plates. The two ends of the first abutment plate are respectively aligned with the inner ends of the two first side plates. The outer ends of the first side plates extend towards the second fastening plate, and the outer ends of the first side plates are correspondingly aligned with the first fixing plates. The first fixing plates extend vertically away from the column. The first abutment plate is arranged to lie flat against the column. The second fastening plate includes a second abutment plate, two second side plates, and two second fixing plates. The two ends of the second abutment plate are respectively aligned with the inner ends of the two second side plates. The outer ends of the second side plates extend towards the first fastening plate, and the outer ends of the second side plates are correspondingly aligned with the second fixing plates. The second fixing plates extend vertically away from the column. The first and second fixing plates are arranged correspondingly. The fasteners simultaneously penetrate the first and second fixing plates, and the fasteners are used to tighten or loosen the first and second fixing plates.

[0013] Furthermore, the end of the connecting shaft forms a shaft head, which is arranged to overlap and abut against the second abutment plate. In the fastened state, the shaft head is arranged to abut against the column.

[0014] Furthermore, the inner connecting plate includes an inner upper plate, an inner lower plate, and an inner longitudinal plate. The inner longitudinal plate extends longitudinally, and its two ends are respectively connected to the inner upper plate and the inner lower plate. The inner upper plate and the inner lower plate are arranged vertically and alternately. The outer connecting plate includes an outer upper plate, an outer lower plate, and an outer arc plate. The outer arc plate is arranged in an arched arc shape away from the inner longitudinal plate. Its two ends are respectively connected to the outer upper plate and the outer lower plate. The inner upper plate and the outer upper plate are arranged vertically and overlap vertically. The outer lower plate and the inner lower plate are arranged vertically and overlap vertically. The connecting fasteners simultaneously penetrate the inner upper plate, the outer upper plate, the outer lower plate, and the inner lower plate. The connecting fasteners are used to fasten or loosen the inner upper plate and the outer upper plate, and to fasten or loosen the outer lower plate and the inner lower plate.

[0015] Furthermore, a rod fixing groove is formed between the connecting fastener and the outer arc plate. The vehicle connecting assembly includes a connecting main rod, which is used for assembly with the vehicle. The connecting main rod passes through the rod fixing groove, and the connecting fastener and the outer arc plate are used to clamp the connecting main rod.

[0016] Compared with the prior art, the adjustable trailer connection device provided by this utility model allows for the assembly of the first connection assembly with the trailer body and the assembly of the second connection assembly with the vehicle during use, enabling the vehicle to drive the trailer body for carrying and transportation. Simultaneously, the first fastening plate, the second fastening plate, and the fasteners work together to switch the assembly position of the first connection assembly with the column. Based on usage requirements, the assembly position of the first connection assembly can be adjusted along the longitudinal direction of the column, effectively enhancing the adaptability of the first connection assembly with the trailer body. Furthermore, by adjusting the relative swing of the inner and outer connecting plates, the relative angle between the trailer body and the vehicle can be adjusted without disassembly, meeting the travel needs in different scenarios, offering wider adaptability and greater flexibility. Attached Figure Description

[0017] Figure 1 This is a perspective view of the adjustable trailer connection device provided by this utility model;

[0018] Figure 2 This is an exploded view of the adjustable trailer connection device provided by this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the adjustable trailer connection device provided by this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the adjustable trailer connection device provided by this utility model assembled with the trailer body. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0025] An adjustable trailer connection device includes a first connection assembly 1, a second connection assembly 2, and a connection component 3. Both ends of the connection component 3 are respectively assembled with the first connection assembly 1 and the second connection assembly 2. The first connection assembly 1 includes a first fastening plate 11, a second fastening plate 12, and a plurality of fasteners 13. The first fastening plate 11 and the second fastening plate 12 are used to clamp the uprights 4 of the trailer body 5. The fasteners 13 are used to fasten or loosen the first fastening plate 11 and the second fastening plate 12. In the first connecting assembly 1, the first connecting assembly 1 is arranged in an adjustable manner along the longitudinal direction of the column 4; the second connecting assembly 2 includes an inner connecting plate 21, an outer connecting plate 22 and a connecting fastener 23. The inner connecting plate 21 is assembled with the connecting component 3, and the outer connecting plate 22 is assembled with the vehicle connecting component. The vehicle connecting component is used to assemble with the vehicle. The inner connecting plate 21 and the outer connecting plate 22 are arranged in a corresponding interlocking manner. The connecting fastener 23 passes through the inner connecting plate 21 and the outer connecting plate 22, and the connecting fastener 23 is used to make the inner connecting plate 21 and the outer connecting plate 22 in a fastened state or a loosened state.

[0026] In use, the aforementioned adjustable trailer connection device assembles the first connection assembly 1 with the trailer body 5 and the second connection assembly 2 with the vehicle, enabling the vehicle to power the trailer body 5 for carrying and transporting goods. Simultaneously, the first fastening plate 11, the second fastening plate 12, and the fastener 13 work together to switch the assembly positions of the first connection assembly 1 and the column 4. Based on usage requirements, the assembly position of the first connection assembly 1 can be adjusted along the longitudinal direction of the column 4, effectively enhancing the adaptability of the first connection assembly 1 and the trailer body 5. Furthermore, by adjusting the relative swing of the inner connecting plate 21 and the outer connecting plate 22, the relative angle between the trailer body 5 and the vehicle can be adjusted without disassembly, meeting the travel needs in different scenarios, offering wider adaptability and greater flexibility.

[0027] The connecting assembly 3 includes a connecting shaft 31 and a shaft nut 32. The connecting shaft 31 passes through the second fastening plate 12 and the inner connecting plate 21 respectively. The shaft nut 32 is sleeved on the connecting shaft 31 and is used to make the connecting shaft 31 and the inner connecting plate 21 either in a fastened or loosened state. In this way, under the action of the connecting shaft 31, the relative assembly between the first connecting assembly 1 and the second connecting assembly 2 is realized.

[0028] The connecting component 3 includes a balancer 34, which is fitted with a connecting shaft 31. The balancer 34 and the connecting shaft 31 are movably arranged. The two ends of the balancer 34 are respectively fitted with a second fastening plate 12 and an inner connecting plate 21, and the balancer 34 and the inner connecting plate 21 are movably arranged. The second fastening plate 12 is swung by an external force, causing the balancer 34 to rotate.

[0029] In this way, under the action of the balancer 34, the second fastening plate 12 and the first connecting assembly 1 can rotate relative to each other. For example, when driving on uneven roads, but when the two wheels of the trailer body 5 are at different heights, the second fastening plate 12 causes the two wheels of the trailer body 5 to be arranged in a staggered height arrangement under the action of the balancer 34, so that both wheels are in contact with the ground, making the driving balance of the trailer body 5 better and the driving safety better.

[0030] The connecting assembly 3 includes a stop plate 33, a connecting shaft 31 passing through the stop plate 33, the connecting shaft 31 having a threaded portion, a shaft nut 32 being threadedly connected to the threaded portion, the stop plate 33 being arranged adjacent to the threaded portion, the stop plate 33 being located between the threaded portion and the balance member 34, and the stop plate 33 being used to restrict the shaft nut 32 from continuing to move toward the balance member 34.

[0031] Under the action of the stop plate 33, the rotation amplitude of the shaft nut 32 is too large, which causes the shaft nut 32 to affect the rotation of the balance component 34. In this way, the tightening action of the connecting shaft 31 is ensured, while the shaft nut 32 is prevented from affecting the balance of the balance component 34.

[0032] The connecting assembly 3 includes a protective shell 35, through which the connecting shaft 31 and the balancing component 34 pass. The two sides of the protective shell 35 are arranged in abutment against the second fastening plate 12 and the inner connecting plate 21, respectively. Under the action of the protective shell 35, the connecting shaft 31 is protected, and at the same time, the cooperation effect with the second fastening plate 12 and the inner connecting plate 21 is improved, thereby improving the overall assembly stability.

[0033] The protective shell 35 includes a first protective plate and a second protective plate, which are arranged to extend longitudinally. The first protective plate is arranged to lie flat against the second fastening plate 12, and the second protective plate is arranged to lie flat against the inner connecting plate 21. Under the action of the first and second protective plates, the contact area with the second fastening plate 12 and the contact area with the inner connecting plate 21 are increased, thereby improving the overall assembly stability. At the same time, the stability is also enhanced when the second fastening plate 12 rotates.

[0034] The first fastening plate 11 includes a first abutment plate, two first side plates, and two first fixing plates. The two ends of the first abutment plate are respectively aligned with the inner ends of the two first side plates. The outer ends of the first side plates extend in the direction toward the second fastening plate 12. The outer ends of the first side plates are aligned with the first fixing plates. The first fixing plates extend vertically in the direction away from the column 4. The first abutment plate and the column 4 are arranged in a flat abutment arrangement. This facilitates the cooperation between the first fastening plate 11 and the column 4. At the same time, the cooperation of the two first side plates enhances the assembly stability of the first fastening plate 11 and the column 4.

[0035] The second fastening plate 12 includes a second abutment, two second side plates, and two second fixing plates. The two ends of the second abutment are respectively aligned with the inner ends of the two second side plates. The outer ends of the second side plates extend in the direction toward the first fastening plate 11 and are aligned with the second fixing plates. The second fixing plates extend vertically in the direction away from the column 4. This facilitates the cooperation between the second fastening plate 12 and the column 4. At the same time, the cooperation of the two second side plates plays a role in positioning and limiting the column 4, thereby enhancing the assembly stability of the second fastening plate 12 and the column 4.

[0036] The first and second fixing plates are arranged in a corresponding manner, and the fastener 13 passes through the first and second fixing plates simultaneously. The fastener 13 is used to make the first and second fixing plates in a tight or loose state, thereby realizing the switching between the tight and loose states.

[0037] The end of the connecting shaft 31 forms a shaft head, which is arranged to overlap and abut against the second abutment plate. When fastened, the shaft head is arranged to abut against the column 4, thereby improving the stability of the assembly.

[0038] The inner connecting plate 21 includes an inner upper plate, an inner lower plate, and an inner longitudinal plate. The inner longitudinal plate extends longitudinally, and its two ends are respectively connected to the inner upper plate and the inner lower plate. The inner upper plate and the inner lower plate are arranged vertically and alternately. The outer connecting plate 22 includes an outer upper plate, an outer lower plate, and an outer arc plate. The outer arc plate is arranged in an arched arc shape away from the inner longitudinal plate. Its two ends are respectively connected to the outer upper plate and the outer lower plate. The inner upper plate and the outer upper plate are arranged vertically and overlap vertically. The outer lower plate and the inner lower plate are arranged vertically and overlap vertically. The connecting fastener 23 passes through the inner upper plate, the outer upper plate, the outer lower plate, and the inner lower plate simultaneously. The connecting fastener 23 is used to fasten or loosen the inner upper plate and the outer upper plate, and to fasten or loosen the outer lower plate and the inner lower plate.

[0039] This improves the stability of the fit between the inner connecting plate 21 and the outer connecting plate 22, and at the same time facilitates the relative swing adjustment between the inner connecting plate 21 and the outer connecting plate 22.

[0040] A rod fixing groove is formed between the connecting fastener 23 and the outer arc plate. The vehicle connecting assembly includes a connecting main rod 36, which is used for assembly with the vehicle. The connecting main rod 36 passes through the rod fixing groove. The connecting fastener 23 and the outer arc plate are used to clamp the connecting main rod 36. The assembly of the connecting main rod 36 with the second connecting assembly 2 is realized, and the vehicle is then assembled through the connecting main rod 36.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable trailer connection device, characterized in that, The system includes a first connecting assembly, a second connecting assembly, and a connecting component. The two ends of the connecting component are respectively assembled with the first connecting assembly and the second connecting assembly. The first connecting assembly includes a first fastening plate, a second fastening plate, and multiple fasteners. The first and second fastening plates are used to clamp the uprights of the trailer body. The fasteners are used to fasten or loosen the first and second fastening plates. The first connecting assembly is adjustable along the longitudinal direction of the uprights. The second connecting assembly includes an inner connecting plate, an outer connecting plate, and connecting fasteners. The inner connecting plate is assembled with the connecting component, and the outer connecting plate is assembled with a vehicle connecting component. The vehicle connecting component is used to assemble with a vehicle. The inner and outer connecting plates are interlocked and corresponding. The connecting fasteners penetrate the inner and outer connecting plates and are used to fasten or loosen the inner and outer connecting plates.

2. The adjustable trailer connection device as described in claim 1, characterized in that, The connecting assembly includes a connecting shaft and a shaft nut. The connecting shaft passes through the second fastening plate and the inner connecting plate respectively. The shaft nut is sleeved on the connecting shaft and is used to make the connecting shaft and the inner connecting plate either in a fastened or loosened state.

3. The adjustable trailer connection device as described in claim 2, characterized in that, The connecting assembly includes a balancing component, which is sleeved on the connecting shaft and is movably arranged with the connecting shaft. The second fastening plate and the inner connecting plate are respectively embedded at both ends of the balancing component, and the balancing component and the inner connecting plate are movably arranged with each other. The second fastening plate is oscillating under external force, causing the balancing component to rotate.

4. The adjustable trailer connection device as described in claim 3, characterized in that, The connecting assembly includes a stop plate, the connecting shaft passes through the stop plate, the connecting shaft has a threaded portion, the shaft nut is threadedly connected to the threaded portion, the stop plate is arranged adjacent to the threaded portion, the stop plate is located between the threaded portion and the balance member, and the stop plate is used to restrict the shaft nut from continuing to move toward the balance member.

5. The adjustable trailer connection device as described in claim 4, characterized in that, The connecting assembly includes a protective shell, through which the connecting shaft and the balancing member both pass. The two sides of the protective shell are respectively arranged in abutment against the second fastening plate and the inner connecting plate.

6. The adjustable trailer connection device as described in claim 5, characterized in that, The protective shell includes a first protective plate and a second protective plate, which are arranged to extend longitudinally. The first protective plate and the second fastening plate are arranged to lie flat and abut against each other, and the second protective plate and the inner connecting plate are arranged to lie flat and abut against each other.

7. The adjustable trailer connection device as described in any one of claims 2-6, characterized in that, The first fastening plate includes a first abutment plate, two first side plates, and two first fixing plates. The two ends of the first abutment plate are respectively aligned with the inner ends of the two first side plates. The outer ends of the first side plates extend towards the second fastening plate, and the outer ends of the first side plates are correspondingly aligned with the first fixing plates. The first fixing plates extend vertically away from the column. The first abutment plate is laid flat against the column. The second fastening plate includes a second abutment plate, two second side plates, and two second fixing plates. The two ends of the second abutment plate are respectively aligned with the inner ends of the two second side plates. The outer ends of the second side plates extend towards the first fastening plate, and the outer ends of the second side plates are correspondingly aligned with the second fixing plates. The second fixing plates extend vertically away from the column. The first and second fixing plates are arranged correspondingly. The fasteners simultaneously penetrate the first and second fixing plates, and the fasteners are used to fasten or loosen the first and second fixing plates.

8. The adjustable trailer connection device as described in claim 7, characterized in that, The end of the connecting shaft forms a shaft head, which is arranged to overlap and abut against the second abutment plate. In the fastened state, the shaft head is arranged to abut against the column.

9. The adjustable trailer coupling device as described in any one of claims 2-6, characterized in that, The inner connecting plate includes an inner upper plate, an inner lower plate, and an inner longitudinal plate. The inner longitudinal plate extends longitudinally, and its two ends are respectively connected to the inner upper plate and the inner lower plate. The inner upper plate and the inner lower plate are arranged vertically and alternately. The outer connecting plate includes an outer upper plate, an outer lower plate, and an outer arc plate. The outer arc plate is arranged in an arched arc shape away from the inner longitudinal plate. Its two ends are respectively connected to the outer upper plate and the outer lower plate. The inner upper plate and the outer upper plate are arranged vertically overlapping each other, and the outer lower plate and the inner lower plate are arranged vertically overlapping each other. The connecting fasteners simultaneously penetrate the inner upper plate, the outer upper plate, the outer lower plate, and the inner lower plate. The connecting fasteners are used to fasten or loosen the inner upper plate and the outer upper plate, and to fasten or loosen the outer lower plate and the inner lower plate.

10. The adjustable trailer connection device as described in claim 9, characterized in that, A rod-fixing groove is formed between the connecting fastener and the outer arc plate. The vehicle-connecting assembly includes a connecting main rod, which is used for assembly with the vehicle. The connecting main rod passes through the rod-fixing groove, and the connecting fastener and the outer arc plate are used to clamp the connecting main rod.

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