Anti-bounce dump truck box and dump truck
By setting movable positioners and fixed positioners between the rear door and the side door of the dump truck, the problem of falling off caused by moving the rear door up and down is solved, and the safety and reliability of the vehicle are improved.
Patent Information
- Application Number
- CN202420840317.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The rear door of the existing dump truck cannot effectively limit the movement of the rear door up and down, causing the rear door to be fatigued and cracked and fall off, affecting product quality and vehicle safety.
By providing a movable positioner on the side edge of the rear door and a fixed positioner on the rear edge of the side door, the contact fit of the positioner is used to restrict the movement of the rear door up and down relative to the side to prevent the rear door from falling off.
Effectively prevent the rear door from moving up and down on the opposite side during the vehicle driving, extend the service life of the rear door and flip hinges, and improve the safety and reliability of the vehicle.
Smart Images
Figure CN222819970U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicle equipment, in particular to an anti-bounce dump truck box. In addition, the utility model also relates to a dump truck comprising the anti-bounce dump truck box. Background Art
[0002] Dump trucks are widely used in the field of material transportation. The vehicle body of the dump truck includes a floor, side doors and a rear door. The two side doors are arranged on both sides of the floor, and the rear door is arranged at the rear end of the floor and the side doors. The rear door is connected to the side doors through a flip hinge, and the floor locks the rear door through an automatic locking mechanism.
[0003] However, the rear door cannot be set up to limit its up and down movement, which makes it easy to crack due to fatigue, and eventually causes it to fall off, thus affecting the quality of the product. Although the existing technology extends the service life by increasing the strength of the rear door, it does not solve the problem of the rear door moving up and down from the root cause. This problem will also affect the life of the pin shaft of the flip hinge, and the risk of the rear door falling off still exists.
[0004] Therefore, how to provide an anti-bounce dump truck box is a technical problem that those skilled in the art currently need to solve. Utility Model Content
[0005] The purpose of the utility model is to provide an anti-bounce dump truck box, which limits the relative side movement of the rear door up and down by contacting and cooperating with the fixed positioning member and the movable positioning member, thereby avoiding component damage and preventing the rear door from falling off. Another purpose of the utility model is to provide a dump truck including the anti-bounce dump truck box.
[0006] In order to solve the above technical problems, the utility model provides an anti-bounce dump truck box, including a bottom plate, side doors and a rear door, the two ends of the upper edge of the rear door are respectively connected to the upper edges of the two side doors by flip hinges, the rear edge of the bottom plate is provided with an automatic locking mechanism, the side edge of the rear door is provided with a movable positioning piece, and the corresponding position of the rear edge of the side door is provided with a fixed positioning piece, when the rear door is closed, the movable positioning piece contacts and connects with the fixed positioning piece to limit the up and down movement of the rear door relative to the side door, and when the rear door is opened, the movable positioning piece separates from the fixed positioning piece.
[0007] Preferably, the movable positioning member includes a mounting block and a movable block arranged in parallel, the front end face of the mounting block is fixedly connected to the rear of the side edge of the rear door, the inner side face of the movable block is fixedly connected to the outer side face of the mounting block, so that the movable block protrudes from the side edge of the rear door, the fixed positioning member includes a fixed block, the inner side face of the fixed block is fixedly connected to the outer side face of the rear edge of the side door, so that the front end face of the movable block can be opposite to the rear end face of the fixed block, and the front end face of the movable block and the rear end face of the fixed block are provided with positioning structures that cooperate with each other.
[0008] Preferably, the positioning structures are tooth structures that can mesh with each other.
[0009] Preferably, the positioning structure is a pin-hole structure that can be plugged into each other.
[0010] Preferably, the mounting block, the movable block and the fixed block are rigid iron parts.
[0011] Preferably, the mounting block is welded to the rear door, the fixed block is welded to the side door, and the mounting block is welded to the movable block via a connecting column.
[0012] Preferably, the two movable positioning members are symmetrically arranged at the two side edges of the rear door, and the two fixed positioning members are symmetrically arranged at the two rear edges of the side doors.
[0013] Preferably, the movable positioning member and the fixed positioning member are arranged close to the lower end.
[0014] Preferably, contact sensors are provided on the movable positioning member and the fixed positioning member, and the contact sensors are connected to a controller and judge whether the movable positioning member and the fixed positioning member are in contact with each other.
[0015] The utility model provides a dump truck, comprising the anti-bounce dump truck box as described in any one of the above items.
[0016] The utility model provides an anti-bounce dump truck box, comprising a bottom plate, side doors and a rear door, wherein the two ends of the upper edge of the rear door are respectively connected to the upper edges of the two side doors by means of flip hinges, an automatic locking mechanism is arranged at the rear edge of the bottom plate, movable positioning pieces are arranged at the side edges of the rear door, and fixed positioning pieces are arranged at corresponding positions of the rear edges of the side doors, when the rear door is closed, the movable positioning piece contacts and connects to the fixed positioning piece to limit the upward and downward movement of the rear door relative to the side door, and when the rear door is opened, the movable positioning piece is separated from the fixed positioning piece.
[0017] During operation, the movable positioning part contacts and connects to the fixed positioning part when the rear door is closed, and separates from the fixed positioning part when the rear door is opened. The contact and cooperation between the fixed positioning part and the movable positioning part can limit the up and down movement of the rear door relative to the side. During driving of the vehicle, even if bumps occur, the rear door will not produce up and down displacement relative to the side, which fundamentally solves the problem of damage to the rear door and flip hinge, effectively prevents the rear door from falling off, and improves vehicle safety and reliability.
[0018] The utility model also provides a dump truck including the anti-bounce dump truck box. Since the anti-bounce dump truck box has the above-mentioned technical effects, the dump truck should also have the same technical effects, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A structural schematic diagram of a specific implementation of the anti-bounce dump truck box provided by the utility model;
[0020] Figure 2 A partial enlarged view of a positioning member in a specific implementation manner of the anti-bounce dump truck box provided by the utility model.
[0021] Among them, there are a side door 1, a rear door 2, a flip hinge 3, an automatic locking mechanism 4, a mounting block 5, a movable block 6, and a fixed block 7. DETAILED DESCRIPTION
[0022] The core of the utility model is to provide an anti-bounce dump truck box, which limits the relative side movement of the rear door up and down through the contact and cooperation of the fixed positioning member and the movable positioning member, thereby avoiding component damage and preventing the rear door from falling off. Another core of the utility model is to provide a dump truck including the anti-bounce dump truck box.
[0023] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0024] Please refer to Figure 1 and Figure 2 , Figure 1 A structural schematic diagram of a specific implementation of the anti-bounce dump truck box provided by the utility model; Figure 2 A partial enlarged view of a positioning member in a specific implementation manner of the anti-bounce dump truck box provided by the utility model.
[0025] The utility model provides a bounce-proof dump truck box, including a bottom plate, two side doors 1 and a rear door 2. The front end is defined according to the vehicle's forward direction, the rear end is defined according to the backward direction, the front and rear directions are longitudinal, the two horizontal sides of the longitudinal direction are transverse, and the upper and lower ends of each component are defined according to the vertical direction when the truck box is laid flat. The bottom plate is provided with side doors 1 extending upward on both lateral sides, and the rear door 2 is provided at the rear end of the bottom plate and the side door 1. When the truck box is arranged horizontally and the rear door 2 is closed, the lateral side edges of the rear door 2 fit the rear end edges of the two side doors 2, and the lower end edge of the rear door 2 fits the rear end edge of the bottom plate, forming a trough structure for holding goods.
[0026] Specifically, the rear end of the upper edge of each side door 2 is provided with a flip hinge 3, and the flip hinge 3 is also connected to the two ends of the upper edge of the rear, that is, the two ends of the upper edge of the rear door 2 are respectively connected to the upper edges of the two side doors 1 through the flip hinge 3, and the rear edge of the bottom plate is provided with an automatic locking mechanism 4, which can be locked with the lower edge of the rear door 2. Among them, the flip hinge 3 connects the rear pillar of the side door 2 and the movable joint of the rear door 2, so that the rear door 2 can reach a larger radius and a reasonable flip height. The automatic locking mechanism 4 is a group of components that can allow the rear door 2 to open and close.
[0027] Furthermore, a movable positioning piece is provided at the side edge of the rear door 2, and a fixed positioning piece is provided at the corresponding position of the rear edge of the side door 1. When the rear door 2 is closed, the movable positioning piece contacts and connects to the fixed positioning piece to limit the up and down movement of the rear door 2 relative to the side door 1. When the rear door 2 is opened, the movable positioning piece separates from the fixed positioning piece.
[0028] During operation, when the rear door 2 is closed, the movable positioning part contacts and connects to the fixed positioning part, and when the rear door 2 is opened, the movable positioning part separates from the fixed positioning part. The contact and cooperation between the fixed positioning part and the movable positioning part can limit the up and down movement of the rear door 2 relative to the side. During the driving of the vehicle, even if bumps occur, the rear door 2 will not produce up and down displacement relative to the side, which fundamentally solves the damage problem of the rear door 2 and the flip hinge 3, effectively prevents the rear door 2 from falling off, and improves the safety and reliability of the vehicle.
[0029] In the anti-bounce dump truck box provided by the specific embodiment of the utility model, the movable positioning member includes a mounting block 5 and a movable block 6 arranged in parallel, the front end face of the mounting block 5 is fixedly connected to the rear edge of the rear door 2, the inner side face of the movable block 6 is fixedly connected to the outer side face of the mounting block 5, so that the movable block 6 protrudes from the side edge of the rear door 2, and the fixed positioning member includes a fixed block 7, the inner side face of the fixed block 7 is fixedly connected to the outer side face of the rear edge of the side door 1, so that the front end face of the movable block 6 can be opposite to the rear end face of the fixed block 7, and the front end face of the movable block 6 and the rear end face of the fixed block 7 are provided with mutually matching positioning structures. Through the arrangement of each component, interference with the rear door 2 is avoided, and at the same time, the block structure ensures that each block has sufficient contact area with the side door 1 and the rear door 2, ensuring stable and reliable connection. The connection method can also be adjusted according to the situation, such as setting a mounting rod or a mounting plate to connect each block structure, which is within the protection scope of the utility model.
[0030] In the first embodiment, the positioning structure is a tooth structure that can mesh with each other, and the tooth structure is integrally formed with the corresponding movable block 6 and the fixed block 7. The crests and troughs of the tooth structure are horizontally extending ridges to achieve vertical position limiting. The specific working process is: when the car body is lifted to 3 to 5 degrees, the automatic locking mechanism 4 opens, and the rear door 2 opens accordingly. As the lifting angle of the car body increases, the angle between the rear door 2 and the side door 1 increases accordingly, and the tooth structure of the front end face of the movable block 6 and the rear end face of the fixed block 7 separates to achieve cargo unloading. On the contrary, as the rear door 2 fits with the side door 1, the tooth structure of the front end face of the movable block 6 and the rear end face of the fixed block 7 engages. During the driving process of the vehicle, even if it is bumpy, the rear door 2 and the side door 1 can be limited to have no relative displacement up and down, which fundamentally solves the problem of failure of the rear door 2 and the flip hinge 3 and wear of the pin shaft, and effectively prevents the rear door 2 from falling off.
[0031] In the second embodiment, the positioning structure is a pin-hole structure that can be plugged into each other, that is, a positioning pin is provided on one of the front end face of the movable block 6 and the rear end face of the fixed block 7, and a corresponding positioning hole is provided on the other of the two. The positioning hole and the positioning pin are arranged horizontally in the longitudinal direction to achieve vertical limit. Further, a guide surface can be provided at the end of the positioning pin. The specific working process is: when the car body is lifted to 3 to 5 degrees, the automatic locking mechanism 4 is opened, and the rear door 2 is opened accordingly. As the lifting angle of the car body increases, the angle between the rear door 2 and the side door 1 increases accordingly, and the positioning pins on the front end face of the movable block 6 and the rear end face of the fixed block 7 are separated from the positioning hole to achieve cargo unloading. On the contrary, as the rear door 2 and the side door 1 are fitted, the positioning pins on the front end face of the movable block 6 and the rear end face of the fixed block 7 are inserted into the positioning inner hole. During the driving process of the vehicle, even if it is bumpy, the rear door 2 and the side door 1 can be limited to have no relative displacement up and down, which fundamentally solves the problem of failure of the rear door 2 and the flip hinge 3 and the wear of the pin shaft, and effectively prevents the rear door 2 from falling off.
[0032] In the anti-bounce dump truck box provided by the specific embodiment of the utility model, the mounting block 5, the movable block 6 and the fixed block 7 are rigid iron parts. The mounting block 5 is welded to the rear door 2, the fixed block 7 is welded to the side door 1, and the mounting block 5 is welded to the movable block 6 through a connecting column.
[0033] In order to improve the reliability of the upper and lower limit when the rear door 2 is closed, two sets of positioning members can be provided, two movable positioning members are symmetrically arranged at the two side edges of the rear door 2, and two fixed positioning members are symmetrically arranged at the rear edges of the two side doors 1. Specifically, the movable positioning members and the fixed positioning members are arranged close to the lower end. Of course, adjusting the materials, connection methods, quantity and arrangement methods of each component according to the situation is within the protection scope of the present utility model.
[0034] On the basis of the anti-bounce dump truck box provided in the above-mentioned specific embodiments, contact sensors are provided on the movable positioning parts and the fixed positioning parts, and the contact sensors are connected to the controller and judge whether the movable positioning parts and the fixed positioning parts are in contact. Specifically, the contact sensor can be a photoelectric sensor, a magnetic sensor or a travel sensor. When the rear door 2 is closed, the movable positioning parts and the fixed positioning parts are in contact, and the contact sensor is triggered. The controller determines that the rear door 2 is working normally after reading. If the contact sensor is not triggered when the rear door 2 is closed, it means that the movable positioning parts and the fixed positioning parts are not in contact, and the upper and lower displacement limits cannot be achieved. The controller will issue an alarm when it obtains this result, and timely maintenance is carried out to ensure the safety of the vehicle.
[0035] In addition to the above-mentioned anti-bounce dump truck box, the specific embodiment of the utility model also provides a dump truck including the above-mentioned anti-bounce dump truck box. For the structure of other parts of the dump truck, please refer to the prior art and will not be described in detail herein.
[0036] The anti-bounce dump truck box and dump truck provided by the utility model are introduced in detail above. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A bounce-proof dump truck box, comprising a bottom plate, side doors (1) and a rear door (2), wherein the two ends of the upper edge of the rear door (2) are respectively connected to the upper edges of the two side doors (1) through a flip hinge (3), and the rear edge of the bottom plate is provided with an automatic locking mechanism (4), characterized in that: A movable positioning member is provided at the side edge of the rear door (2), and a fixed positioning member is provided at a corresponding position of the rear edge of the side door (1); when the rear door (2) is closed, the movable positioning member contacts and connects with the fixed positioning member to limit the upward and downward movement of the rear door (2) relative to the side door (1); when the rear door (2) is opened, the movable positioning member separates from the fixed positioning member.
2. The anti-bounce dump truck box according to claim 1, characterized in that: The movable positioning member comprises a mounting block (5) and a movable block (6) arranged in parallel, the front end face of the mounting block (5) being fixedly connected to the rear of the side edge of the rear door (2), the inner side face of the movable block (6) being fixedly connected to the outer side face of the mounting block (5), so that the movable block (6) protrudes from the side edge of the rear door (2), the fixed positioning member comprises a fixed block (7), the inner side face of the fixed block (7) being fixedly connected to the outer side face of the rear edge of the side door (1), so that the front end face of the movable block (6) can be opposite to the rear end face of the fixed block (7), and mutually matching positioning structures are arranged on the front end face of the movable block (6) and the rear end face of the fixed block (7).
3. The anti-bounce dump truck box according to claim 2, characterized in that: The positioning structures are tooth structures that can mesh with each other.
4. The anti-bounce dump truck box according to claim 2, characterized in that: The positioning structure is a pin-hole structure that can be plugged into each other.
5. The anti-bounce dump truck box according to claim 2, characterized in that: The installation block (5), the movable block (6) and the fixed block (7) are rigid iron parts.
6. The anti-bounce dump truck box according to claim 5, characterized in that: The mounting block (5) is welded to the rear door (2), the fixing block (7) is welded to the side door (1), and the mounting block (5) is welded to the movable block (6) via a connecting column.
7. The anti-bounce dump truck box according to claim 1, characterized in that: The two movable positioning members are symmetrically arranged at the two side edges of the rear door (2), and the two fixed positioning members are symmetrically arranged at the rear edges of the two side doors (1).
8. The anti-bounce dump truck box according to claim 7, characterized in that: The movable positioning member and the fixed positioning member are arranged close to the lower end.
9. The anti-bounce dump truck box according to any one of claims 1 to 8, characterized in that: The movable positioning member and the fixed positioning member are provided with contact sensors, which are connected to a controller and judge whether the movable positioning member and the fixed positioning member are in contact with each other.
10. A dump truck, characterized in that: It comprises the anti-bounce dump truck box as described in any one of claims 1 to 9.