Limiting structure and truck
By designing the limit structure and using the coordination of slide rails and grooves, the problem of repeated shaking of truck cargo box door during loading and unloading is solved, and the stable restriction of cargo box door and the improvement of loading and unloading efficiency is achieved.
Patent Information
- Application Number
- CN202422101794.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The truck cargo box door is frequently opened during loading and unloading, resulting in repeated shaking, posing a safety hazard. The hook restriction method of the prior art is inconvenient, affecting loading and unloading efficiency.
A limiting structure is designed, including door fixing, connecting rod assembly and body fixing. When the cargo box door is rotated to fully open, the free end slides along the slide rail until it is limited to the groove, ensuring that the cargo box door is restricted to a fixed position when fully open and prevents shaking.
Through the cooperation of the slide rail and groove, the stable restriction of the cargo door in the open state is achieved, avoiding shaking, improving loading and unloading efficiency, and simplifying the structure and operation.
Smart Images
Figure CN223014321U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of logistics, and particularly to a limiting structure and a freight vehicle. Background Art
[0002] With the development of the express delivery industry, the demand for the use of express delivery vehicles, freight vehicles, etc. has gradually increased. During the loading and unloading process of the goods on the freight vehicle, the cargo compartment door needs to be frequently opened. When the cargo compartment door is opened, there is usually a situation of repeated shaking, so there are also potential safety hazards. In the related art, the excessive opening of the cargo compartment door is usually restricted in the form of a hook, but this method is not convenient enough, the operation is troublesome, and the loading and unloading efficiency is affected. Summary of the Utility Model
[0003] The present application provides a limiting structure and a freight vehicle with a simple structure, convenient operation and improved loading and unloading efficiency.
[0004] The present application provides a limiting structure, including:
[0005] A door fixing member for fixedly connecting with the cargo compartment door of the freight vehicle;
[0006] A connecting rod assembly including a relative rotating end and a free end, the rotating end being rotatably connected to the door fixing member;
[0007] A vehicle body fixing member for fixedly connecting with the cargo compartment body of the freight vehicle and provided with a slide rail, the free end being arranged in the slide rail, the slide rail including a track and a groove arranged at one end of the track, the groove communicating with the track, when the cargo compartment door rotates to be fully opened, the free end can slide along the track until it is limited in the groove.
[0008] Optionally, the free end includes a first limiting portion, a second limiting portion and a sliding portion, the sliding portion connecting the first limiting portion and the second limiting portion, the slide rail being limited between the first limiting portion and the second limiting portion, the second limiting portion including a first limiting sub-portion and a second limiting sub-portion, the first limiting sub-portion connecting the sliding portion and the second limiting sub-portion; the maximum size of the opening of the groove is greater than the width of the track, and greater than the maximum lateral size of the first limiting sub-portion, and less than the maximum lateral size of the second limiting sub-portion.
[0009] Optionally, the first limiting portion includes a limiting rod, a nut and a limiting gasket, the limiting rod being connected to the sliding portion, the limiting gasket being sleeved on the limiting rod, the nut being fixed on the limiting rod, the limiting gasket being clamped between the nut and the sliding portion, the radial size of the limiting gasket being greater than the width of the track and the maximum size of the opening of the groove.
[0010] Optionally, the groove is located at one end of the track close to the door fixing member.
[0011] Optionally, the limiting structure includes a connecting pin and a connecting column fixed to the vehicle door fixing member. The rotating end includes a through hole. The connecting column passes through the through hole and is connected to the connecting pin.
[0012] Optionally, the limiting structure includes a nut and a bolt fixed to the vehicle door fixing member. The rotating end includes a through hole. The bolt passes through the through hole and is connected to the bolt.
[0013] Optionally, the vehicle door fixing member includes a mounting plate and a reinforcing plate. The mounting plate includes a first mounting portion and a second mounting portion connected to the first mounting portion. The reinforcing plate includes a first reinforcing portion and a second reinforcing portion connected to the first reinforcing portion. The first mounting portion and the first reinforcing portion are respectively used for fixing to the cargo box door. The second mounting portion is connected to the rotating end. The second reinforcing portion extends from the first reinforcing portion and fits with the second mounting portion.
[0014] Optionally, the link assembly includes a link connected between the rotating end and the free end. The link extends obliquely away from the slide rail.
[0015] Optionally, the side of the link facing the vehicle door is recessed inward. When the cargo box door is in the fully open state, a gap is formed between the recessed position of the link and the cargo box door.
[0016] The present application provides a freight vehicle, including: a cargo box body, a cargo box door rotatably connected to the cargo box body, and the aforementioned limiting structure.
[0017] Optionally, the installation position of the vehicle body fixing member is higher than the installation position of the vehicle door fixing member relative to the bottom of the cargo box body.
[0018] With the limiting structure and the freight vehicle provided in the present application configured in this way, when the cargo box door rotates to the fully open position, the free end can slide along the track until it is limited in the groove, so that the rotating cargo box door is not restricted or affected; and it is ensured that the fully open cargo box door can be limited in the groove by the free end of the vehicle door fixing member, so that the cargo box door is limited in a fixed position, preventing the cargo box door from shaking repeatedly in the open state. Through the cooperation of the track and the groove on the slide rail and the free end, the structure is simple, the operation is convenient, and the loading and unloading efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.
[0020] Figure 1The figure shows a schematic diagram of an embodiment in which the cargo door of the truck of the present application is in a rotating state.
[0021] Figure 2 The figure shows a schematic diagram of an embodiment in which the cargo door of the truck of the present application is in a closed state.
[0022] Figure 3 The figure shows a schematic diagram of an embodiment of the limit structure of the present application.
[0023] Figure 4 The figure shows a schematic diagram of another embodiment of the limit structure of the present application.
[0024] Explanation of reference numerals:
[0025] Truck 100; cargo box body 200; cargo door 300; limit structure 400; door fixing member 1; mounting plate 11; first mounting portion 111; second mounting portion 112; reinforcing plate 12; first reinforcing portion 121; second reinforcing portion 122; link assembly 2; vehicle body fixing member 3; rotating end 4; through hole 41; rotating gasket 42; free end 5; first limiting portion 51; limiting rod 511; nut 512; limiting gasket 513; second limiting portion 52; first limiting sub-portion 521; second limiting sub-portion 522; sliding portion 53; slide rail 6; track 61; groove 62; connecting pin 7; connecting column 8; link 9. Detailed implementation manners
[0026] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements.
[0027] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement conditions between components in a specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.
[0028] This application includes a door fixing member, a connecting rod assembly, and a body fixing member. The door fixing member is used for fixedly connecting with the cargo door of the truck; the connecting rod assembly includes a relative rotating end and a free end, and the rotating end is rotatably connected with the door fixing member; the body fixing member is used for fixedly connecting with the cargo box body of the truck and is provided with a slide rail, the free end is arranged on the slide rail, the slide rail includes a track and a groove arranged at one end of the track, the groove communicates with the track, when the cargo door rotates to be fully opened, the free end can slide along the track until it is limited in the groove. With such a setting, when the cargo door rotates to be fully opened, the free end can slide along the track until it is limited in the groove, so that the rotating cargo door is not restricted and affected; and it is ensured that the fully opened cargo door can be restricted in the groove by the free end of the door fixing member, so that the cargo door is restricted in a fixed position, preventing the cargo door from shaking repeatedly in the opened state. Through the cooperation of the track and the groove on the slide rail with the free end, the structure is simple, the operation is convenient, and the loading and unloading efficiency is improved.
[0029] This application provides a limiting structure and a truck. The limiting structure and the truck of this application will be described in detail below with reference to the accompanying drawings.
[0030] Figure 1 The figure shows a schematic diagram of an embodiment in which the cargo door 300 of the truck 100 of this application is in a rotating state. Figure 1 In the shown embodiment, the truck 100 includes a cargo box body 200, a cargo door 300 rotatably connected to the cargo box body 200, and a limiting structure 400. The cargo box body 200 can be the box body of the body of the truck 100 and is used for loading goods. The cargo door 300 is used for forming a storage space with the cargo box body 200. The limiting structure 400 is used for restricting the shaking of the cargo door 300.
[0031] Figure 2 The figure shows a schematic diagram of an embodiment in which the cargo door 300 of the truck 100 of this application is in a closed state. Figure 3 The figure shows a schematic diagram of an embodiment of the limiting structure 400 of this application. Figure 2 and Figure 3In the illustrated embodiment, the limiting structure 400 includes a door fixing member 1, a link assembly 2, and a vehicle body fixing member 3. The door fixing member 1 may be a mounting plate 11 assembly. The link assembly 2 can rotate on the door fixing member 1. The vehicle body fixing member 3 may be a limiting plate. The door fixing member 1 is used for fixedly connecting with the cargo door 300 of the truck 100. The link assembly 2 includes opposite rotating ends 4 and free ends 5. The rotating end 4 is rotatably connected to the door fixing member 1. In this embodiment, the rotating end 4 rotates in the horizontal direction of the door fixing member 1. In some other embodiments, it can also rotate in other directions, not limited to this. The vehicle body fixing member 3 is used for fixedly connecting with the cargo box body 200 of the truck 100 and is provided with a slide rail 6. In this embodiment, the slide rail 6 is a hollow structure and may be an elongated special-shaped hole formed in the vehicle body fixing member 3. In some other embodiments, the slide rail 6 may also be a groove with a bottom surface, not limited to this. The free end 5 is disposed in the slide rail 6. The slide rail 6 includes a track 61 and a groove 62 provided at one end of the track 61. In this embodiment, the track 61 may be an elongated hole formed in the vehicle body fixing member 3. The track 61 may also be a groove with a bottom surface, not limited to this. The groove 62 is located at one end of the track 61, and the radial dimension of the groove 62 is larger than the radial dimension of the track 61. The groove 62 communicates with the track 61, and the free end 5 can slide along the track 61. When the cargo door 300 rotates to a fully open state, the free end 5 can slide along the track 61 until it is limited in the groove 62. Specifically, when the cargo door 300 is in a rotating state, the rotating end 4 moves relative to the door fixing member 1, the free end 5 disengages from the groove 62 and moves along the track 61. When the cargo door 300 is in a fully open state, the free end 5 is limited in the groove 62, making the rotating end 4 stationary relative to the door fixing member 1. In this embodiment, the cargo door 300 being in a rotating state means that the cargo door 300 is in the process of opening or closing, and the cargo door 300 being in a fully open state means that the cargo door 300 is stationary in the required state after being opened. In this embodiment, the opening degree of the cargo door 300 can reach the required state according to the installation positions of the door fixing member 1 and the vehicle body fixing member 3 or the length of the slide rail 6. In this embodiment, when the cargo door 300 is opened, the free end 5 starts to slide from the track 61 and slides until it is limited in the groove 62. Before closing the cargo door 300, the free end 5 is adjusted so that the free end 5 is not in a limited state, and then the cargo door 300 is closed. With such a setting, when the cargo door 300 rotates to a fully open state, the free end 5 can slide along the track 61 until it is limited in the groove 62.When the cargo door 300 is in a rotating state, the rotating end 4 moves relative to the door fixing member 1, and the free end 5 disengages from the groove 62 and moves along the track 61, so that the cargo door 300 in the rotating state is not restricted and affected; when the cargo door 300 is in a fully open state, the free end 5 is limited within the groove 62, making the rotating end 4 stationary relative to the door fixing member 1, ensuring that the cargo door 300 in the fully open state can be restricted within the groove 62 by the free end 5 of the door fixing member 1, so that the cargo door 300 is restricted in a fixed position, preventing the cargo door 300 from shaking repeatedly in the open state. Through the cooperation of the track 61 and the groove 62 on the slide rail 6 with the free end 5, the structure is simple, the operation is convenient, and the loading and unloading efficiency is improved. The installation position of the vehicle body fixing member 3 is higher than the installation position of the door fixing member 1 relative to the bottom of the cargo box body 200. With such a setting, the connecting rod assembly 2 of the limiting structure 400 is inclined and connected to the door fixing member 1 from top to bottom, facilitating the pulling of the cargo door 300.
[0032] Figure 4 The figure shows a schematic diagram of another embodiment of the limiting structure 400 of the present application. In Figure 2 , Figure 3 and Figure 4In the illustrated embodiment, the free end 5 includes a first limiting portion 51, a second limiting portion 52, and a sliding portion 53. The first limiting portion 51 and the second limiting portion 52 are used for limiting, and the sliding portion 53 functions to connect and slide on the slide rail 6. The sliding portion 53 connects the first limiting portion 51 and the second limiting portion 52. In this embodiment, the first limiting portion 51, the sliding portion 53, and the second limiting portion 52 are connected in sequence from bottom to top. The slide rail 6 is limited between the first limiting portion 51 and the second limiting portion 52. The second limiting portion 52 includes a first limiting sub-portion 521 and a second limiting sub-portion 522. The first limiting sub-portion 521 connects the sliding portion 53 and the second limiting sub-portion 522. In this embodiment, the first limiting portion 51, the sliding portion 53, the first limiting sub-portion 521, and the second limiting sub-portion 522 are connected in sequence from bottom to top. The maximum size of the opening of the groove 62 is greater than the width of the track 61, greater than the maximum lateral size of the first limiting sub-portion 521, and less than the maximum lateral size of the second limiting sub-portion 522. In this embodiment, the maximum lateral size of the first limiting sub-portion 521 refers to the radial dimension of the first limiting sub-portion 521, and the maximum lateral size of the second limiting sub-portion 522 refers to the radial dimension of the second limiting sub-portion 522. When the cargo door 300 is in a rotating state, the sliding portion 53 is located within the track 61, and the track 61 is limited between the first limiting portion 51 and the first limiting sub-portion 521. When the cargo door 300 is in a fully open state, the first limiting sub-portion 521 is located within the groove 62, and the second limiting sub-portion 522 is in limiting cooperation with the track 61. With such a setting, when the cargo door 300 is in a rotating state, through the arrangement of the first limiting portion 51 and the first limiting sub-portion 521, the track 61 is limited between the first limiting portion 51 and the first limiting sub-portion 521, and the structure is simple. When the cargo door 300 is in a fully open state, the second limiting sub-portion 522 is in limiting cooperation with the track 61. In this case, the inner wall of the track 61 corresponds to the outer wall of the first limiting sub-portion 521. By setting limiting sub-portions with different sizes, the free end 5 is restricted at different heights at different positions of the slide rail 6, so that when the cargo door 300 is in a fully open state, the free end 5 can be automatically limited within the groove 62, ensuring that the cargo door 300 does not shake and without the need for other manual operations, which is convenient and fast. The groove 62 is located at one end of the track 61 close to the door fixing member 1. With such a setting, when the free end 5 moves to the groove 62, the cargo door 300 can reach a certain opening degree and is convenient to open the cargo door 300.
[0033] In Figure 2 , Figure 3 and Figure 4In the illustrated embodiment, the first limiting portion 51 includes a limiting rod 511, a nut 512 and a limiting gasket 513. In the present embodiment, the nut 512 may be a cap nut. The limiting rod 511 is connected to the sliding portion 53. The limiting rod 511 and the sliding portion 53 may be integrally formed. The limiting gasket 513 is sleeved on the limiting rod 511, and the nut 512 is fixed to the limiting rod 511. In the present embodiment, the limiting rod 511 may be provided with an external thread, and the nut 512 is threadedly connected to the limiting rod 511. The limiting gasket 513 is clamped between the nut 512 and the sliding portion 53, and the radial dimension of the limiting gasket 513 is greater than the width of the track 61 and the maximum dimension of the opening of the groove 62. When the limiting gasket 513 contacts the slide rail 6, the upper surface of the limiting gasket 513 abuts against the lower surface of the door fixing member 1 where the slide rail 6 is located. Such an arrangement ensures that the free end 5 will not separate from the slide rail 6 and is restricted below the slide rail 6, thereby ensuring a more stable sliding of the free end 5.
[0034] exist Figure 2 , Figure 3 and Figure 4 In the illustrated embodiment, the limiting structure 400 includes a connecting pin 7 and a connecting column 8 fixed to the door fixing member 1, the rotating end 4 includes a through hole 41, the connecting column 8 is provided with the through hole 41, and is connected to the connecting pin 7. In this embodiment, a rotating gasket 42 may be further provided between the connecting pin and the door fixing member 1. In this embodiment, the connecting column 8 may be a fixed shaft, the connecting pin 7 may be a cotter pin, the connecting column 8 may be welded and fixed to the door fixing member 1, the rotating end 4 is sleeved on the connecting column 8, and is fixed by the connecting pin 7, the method is simple, and easy to assemble. In some embodiments, the limiting structure 400 includes a nut 512 and a bolt fixed to the door fixing member 1, the rotating end 4 includes a through hole 41, the bolt is provided with the through hole 41, and is connected to the bolt. In this embodiment, the bolt may be welded to the door fixing member 1, and may also be fixed by other methods, not limited thereto. The assembly is performed by threaded connection, the structure is simple, and it is easy to disassemble. In some other embodiments, the rotating end 4 and the door fixing member 1 may also be connected by means of clamping, etc., not limited thereto.
[0035] exist Figure 2 , Figure 3 and Figure 4 In the illustrated embodiment, the connecting rod assembly 2 includes a connecting rod 9 connected between the rotating end 4 and the free end 5. In this embodiment, the connecting rod 9, the rotating end 4 and the free end 5 are integrally formed. The connecting rod 9 extends obliquely from the slide rail 6 in a direction away from the slide rail 6. This arrangement facilitates the opening or closing of the cargo door 300. The connecting rod 9 is recessed inwardly toward the side of the vehicle door. When the cargo door 300 is in a fully opened state, the recessed position of the connecting rod 9 forms a gap with the cargo door 300. This arrangement facilitates the assembly and disassembly of the connecting rod assembly 2 and is convenient for operation.
[0036] existFigure 2 , Figure 3 and Figure 4 In the embodiments shown, the door fixing member 1 includes a mounting plate 11 and a reinforcing plate 12. The mounting plate 11 is used to be respectively mounted with the cargo box door 300 and the link assembly 2, and the reinforcing plate 12 is used to be mounted with the cargo box door 300 and strengthen the strength of the mounting plate 11. The mounting plate 11 includes a first mounting portion 111 and a second mounting portion 112 connected to the first mounting portion 111. The reinforcing plate 12 includes a first reinforcing portion 121 and a second reinforcing portion 122 connected to the first reinforcing portion 121. The first mounting portion 111 and the first reinforcing portion 121 are respectively used to be fixed to the cargo box door 300. In this embodiment, the first mounting portion 111 and the second mounting portion 112 are oppositely arranged on the cargo box door 300. The second mounting portion 112 is connected to the rotating end 4, and the second reinforcing portion 122 extends from the first reinforcing portion 121 and fits with the second mounting portion 112. With such a setting, the door fixing member 1 is fixed to the cargo box door 300 more firmly, reducing the possibility of damage or detachment.
[0037] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the scope of protection of this application.
Claims
1. A limiting structure, characterized in that: include: A door fixing part, used for fixed connection with a cargo box door of a truck; A connecting rod assembly, comprising an opposite rotating end and a free end, wherein the rotating end is rotatably connected to the door fixing member; A body fixing part is used to be fixedly connected to the cargo box of the truck and is provided with a slide rail, the free end is provided on the slide rail, the slide rail includes a track and a groove provided at one end of the track, the groove is connected to the track, when the cargo box door is rotated to be fully opened, the free end can slide along the track until it is limited in the groove.
2. The limiting structure according to claim 1, characterized in that: The free end includes a first limiting portion, a second limiting portion and a sliding portion, the sliding portion connects the first limiting portion and the second limiting portion, the slide rail is limited between the first limiting portion and the second limiting portion, the second limiting portion includes a first limiting sub-portion and a second limiting sub-portion, the first limiting sub-portion connects the sliding portion and the second limiting sub-portion; the maximum dimension of the opening of the groove is greater than the width of the track, and greater than the maximum lateral dimension of the first limiting sub-portion, and smaller than the maximum lateral dimension of the second limiting sub-portion.
3. The limiting structure according to claim 2, characterized in that: The first limiting portion includes a limiting rod, a nut and a limiting gasket, the limiting rod is connected to the sliding portion, the limiting gasket is sleeved on the limiting rod, the nut is fixed to the limiting rod, the limiting gasket is clamped between the nut and the sliding portion, and the radial dimension of the limiting gasket is greater than the width of the track and the maximum dimension of the opening of the groove.
4. The limiting structure according to claim 1, characterized in that: The groove is located at one end of the track close to the door fixing member.
5. The limiting structure according to claim 1, characterized in that: The limiting structure comprises a connecting pin and a connecting column fixed to the door fixing member, the rotating end comprises a through hole, the connecting column passes through the through hole and is connected to the connecting pin; or The limiting structure includes a nut and a bolt fixed to the door fixing member, and the rotating end includes a through hole, the bolt passes through the through hole, and is connected to the bolt.
6. The limiting structure according to claim 1, characterized in that: The door fixing member includes a mounting plate and a reinforcement plate, the mounting plate includes a first mounting portion and a second mounting portion connected to the first mounting portion, the reinforcement plate includes a first reinforcement portion and a second reinforcement portion connected to the first reinforcement portion, the first mounting portion and the first reinforcement portion are respectively used to fix to the cargo door, the second mounting portion is connected to the rotating end, and the second reinforcement portion extends from the first reinforcement portion and is in contact with the second mounting portion.
7. The limiting structure according to claim 1, characterized in that: The connecting rod assembly comprises a connecting rod connected between a rotating end and a free end, and the connecting rod extends obliquely from the slide rail in a direction away from the slide rail.
8. The limiting structure according to claim 7, characterized in that: The connecting rod is recessed inwardly toward one side of the vehicle door, and when the cargo box door is in a fully opened state, a gap is formed between the recessed position of the connecting rod and the cargo box door.
9. A truck, characterized in that: include: A cargo box body, a cargo box door rotatably connected to the cargo box body, and a limiting structure as described in any one of claims 1-8.
10. The truck according to claim 9, characterized in that: The installation position of the vehicle body fixing part is higher than the installation position of the vehicle door fixing part relative to the bottom of the cargo box body.