Dumper rear lock hook and dumper
By installing a contact plate on the dump truck's lock hook and forming a three-dimensional structure, the problem of cargo door deformation caused by the small contact area of the lock hook is solved, and better force-bearing performance and bending stiffness are achieved.
Patent Information
- Application Number
- CN202422768208.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-13
AI Technical Summary
The side edge of the hook plate of the existing dump truck lock hook abuts against the cargo box door, and the contact area is small, resulting in a large force per unit area, which is easy to damage or deform the cargo box door.
A rear lock hook for a dump truck is designed. A contact plate is installed on the hook plate to increase the contact area with the cargo door. A three-dimensional structure is formed by multiple hook plates to enhance the strength and bending rigidity of the lock hook.
The load-bearing performance of the locking hook is improved, deformation of the cargo door is avoided, the risk of locking hook failure is reduced, and the overall bending rigidity is enhanced.
Smart Images
Figure CN223457019U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of dump truck, in particular to a dump truck rear locking hook and a dump truck. BACKGROUND
[0002] The dump truck is a special design vehicle widely used in civil engineering, mining, agriculture and waste treatment industries, mainly used for transporting bulk materials such as sand, gravel, soil and coal. It realizes self-unloading of goods through hydraulic or mechanical lifting mechanism, thereby greatly saving unloading time and labor, shortening transportation cycle, improving production efficiency and reducing transportation cost.
[0003] The cargo box of the dump truck is its loading component, and the inside of the tail of the cargo box is usually provided with a cargo box door. The top of the two ends of the cargo box door is usually freely hinged with the two side plates of the cargo box, and can be automatically opened under the action of gravity when the cargo box is turned over. Therefore, the dump truck is usually equipped with a locking hook to prevent the cargo box door from being accidentally opened when the cargo box is closed. At present, the locking hook of the dump truck is usually hinged and installed at the tail of the cargo box, and connected with the frame by a chain. During the turning process of the cargo box, the locking hook moves downward, the chain is loosened and no longer pulls the locking hook, thereby releasing the locking of the cargo box door.
[0004] The locking hook seat of the existing structure is usually a single steel plate structure. The locking hook of the single flat plate abuts against the cargo box door by the side edge thereof, the locking flat surface contact area is small, the stress per unit area is too large, and the cargo box door is easily damaged or deformed due to high pressure. SUMMARY
[0005] The utility model discloses to the current rear locking hook adopts the hook plate side edge and the cargo box door abutment realizes the locking, and the locking hook intensity is poorer, and the pressure of the cargo box door is high and agrees to cause its deformation problem, and provides a larger contact area of the dump truck rear locking hook.
[0006] In order to solve the above problems, the utility model adopts the technical scheme, a kind of dump truck rear locking hook, including hook body, hook body includes hook plate, hook plate includes connecting portion and locking portion, the locking portion has the abutment surface for abutting dump truck cargo box door, hook plate is installed with abutment plate, in the direction towards cargo box door, the front end face of abutment plate is at least partially located in front of abutment surface, or, the front end face of abutment plate is at least partially flush with abutment surface. In the scheme, abutment plate is arranged on the locking hook and abuts against the dump truck cargo box door, the contact area of the locking hook and the rear plate of the carriage is large, the stress per unit area is small, the stress performance is better, and the deformation of the cargo box door is avoided.
[0007] Preferably, the connecting portion is provided with a cargo box connecting hole and a chain connecting hole, and the chain connecting hole is located above the cargo box connecting hole.
[0008] Preferably, the plurality of hook plates are arranged in a space intersecting three-dimensional structure, and the strength of the rear locking hook is improved.
[0009] Preferably, the lower part of the abutting plate is provided with a notch, the hook plate is inserted into the notch and fixedly connected, and the hook plate is perpendicular to the abutting plate.
[0010] Preferably, the lower part of the two side edges of the abutting plate is gradually narrowed, so that the strength of the locking hook is ensured, and the interference between the locking hook and other components is reduced.
[0011] Preferably, the connecting part is triangular, the container connecting hole and the chain connecting hole are respectively located at two vertices of the triangular, and the locking part is a strip-shaped plate, the locking part is connected with the third vertex of the connecting part and extends upward.
[0012] Preferably, the front end face of the abutting plate is flush with the abutting surface of the locking part, the lower part of the abutting plate is located within the width of the connecting part, and the chain connecting hole is located in front of the lower part of the abutting plate.
[0013] In addition, the utility model also provides a self-unloading vehicle, which comprises a vehicle frame and a container, and the rear locking hook of the self-unloading vehicle is arranged on the container.
[0014] Preferably, the bottom of the container is provided with a locking hook mounting seat, the lower end of the locking hook mounting seat extends to the lower rear side of the container, and the bottom of the hook plate is hingedly arranged at the lower end of the locking hook mounting seat.
[0015] Preferably, the vehicle frame is provided with a chain mounting seat, a chain is connected to the chain mounting seat, and the other end of the chain is connected to the middle part of the hook plate.
[0016] According to the above technical scheme, the utility model has the following advantages: the utility model provides a rear locking hook of a self-unloading vehicle, the rear locking hook is formed by steel plate and steel pipe tailor welding, the contact surface between the locking hook and the rear plate of the vehicle compartment is large, the stress per unit area is small, and the stress performance is good; the vertical rib on the locking hook seat can improve the overall bending stiffness of the locking hook seat, and reduce the risk of deformation failure of the locking hook during use of the self-unloading vehicle. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to make the technical scheme of the utility model more apparent and easy to understand, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the utility model, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the patent are within the protection scope of the patent.
[0018] Figure 1 It is structural schematic view of the utility model embodiment one.
[0019] Figure 2 It is side view schematic view of the utility model embodiment one.
[0020] Figure 3 It is structural schematic view of the abutment plate in the utility model embodiment one.
[0021] Figure 4 It is structural schematic view of the utility model embodiment two.
[0022] Main drawing mark explanation
[0023] 1.hook plate, 101.box connecting hole, 102.chain connecting hole, 2.abutment plate, 201.notch, 3.sleeve, 4.frame, 5.box, 6.chain mounting seat, 7.chain. Specific implementation
[0024] In order to make the technical scheme of the utility model more apparent and easy to understand, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the utility model, and all other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the patent are within the protection scope of the patent.
[0025] Embodiment one
[0026] As Figures 1-3 Shown, a dump truck rear lock hook, including hook body, hook body includes hook plate 1, hook plate 1 includes connecting portion and locking portion, the connecting portion is provided with box connecting hole 101 and chain connecting hole 102, chain connecting hole 102 is located above the box connecting hole 101, the connecting portion is triangular, the box connecting hole 101 and the chain connecting hole 102 are located at two vertices of the triangle respectively;The locking portion is a strip-shaped plate, and the locking portion is connected with the third vertex of the connecting portion and extends upward, the locking portion has an abutment surface for abutting the dump truck box door.
[0027] In this embodiment, a contact plate 2 is installed on the hook plate 1. In the direction toward the cargo door, the front end surface of the contact plate 2 is at least partially located in front of the contact surface, or the front end surface of the contact plate 2 is at least partially flush with the contact surface. A slot 201 is provided at the lower portion of the contact plate 2, and the hook plate 1 is inserted into the slot and fixedly connected. The hook plate 1 is perpendicular to the contact plate 2, and the lower portions of the two side edges of the contact plate 2 gradually narrow. The upper portion of the front end surface of the contact plate 2 is flush with the contact surface of the locking portion, and the lower portion of the contact plate 2 is located within the width of the connecting portion. The chain connecting hole 102 is located in front of the lower portion of the contact plate 2.
[0028] Furthermore, in the hook body, a plurality of hook plates 1 are provided, the plurality of hook plates 1 have the same shape, the plurality of hook plates are commonly installed with the resistance plate 2, and a sleeve 3 is commonly installed in the cargo box connecting hole 101 of the plurality of hook plates 1.
[0029] Example 2
[0030] This embodiment further provides a dump truck, such as Figure 4 As shown, it includes a vehicle frame 4 and a cargo box 5, and the dump truck rear lock hook provided in Example 1 is installed on the cargo box. When the cargo box door is in a closed state, the contact plate 2 is in contact with the cargo box door.
[0031] Specifically, a lock hook mounting seat 8 is provided at the bottom of the cargo box, the lower end of the lock hook mounting seat 8 extends toward the rear and lower side of the cargo box 5, and the bottom of the hook plate 1 is hingedly mounted on the lower end of the lock hook mounting seat 8; a chain mounting seat 6 is provided on the frame 4, and a chain 7 is connected to the chain mounting seat 6, and the other end of the chain 7 is connected to the middle part of the hook plate 1.
[0032] It can be seen from the above embodiments that the beneficial effect of the present invention is that the present invention provides a rear locking hook for a dump truck, which is formed by welding steel plates and steel pipes. The contact area between the locking hook and the rear plate of the car body is large, the force per unit area is small, and the force-bearing performance is good; the vertical ribs on the locking hook seat can improve the overall bending stiffness of the locking hook seat, and reduce the risk of deformation and failure of the locking hook during the use of the dump truck.
[0033] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A rear lock for a dump truck comprising a hook body, characterized in that, The hook body comprises a hook plate, the hook plate comprises a connecting part and a locking part, the locking part has a contact surface for contacting the dump truck box door, a contact plate is installed on the hook plate, and in the direction towards the box door, the front end surface of the contact plate is at least partially in front of the contact surface, or the front end surface of the contact plate is at least partially flush with the contact surface.
2. The rear lock latch of a dump truck according to claim 1, wherein The connecting part is provided with a box connecting hole and a chain connecting hole, and the chain connecting hole is located above the box connecting hole.
3. The rear lock latch of a dump truck of claim 2, wherein, In the hook body, a plurality of hook plates are provided, the plurality of hook plates are identical in shape, the plurality of hook plates are jointly provided with the contact plate, and the box connecting holes of the plurality of hook plates are jointly provided with a sleeve.
4. The rear lock latch of a dump truck according to any one of claims 1-3, characterized in that, The lower part of the contact plate is provided with a slot, the hook plate is inserted into the slot and fixedly connected, and the hook plate is perpendicular to the contact plate.
5. The rear lock latch of a dump truck of claim 4, wherein, The lower part of the two side edges of the contact plate is gradually narrowed.
6. The rear lock latch of a dump truck of claim 4, wherein, The connecting part is triangular, and the box connecting hole and the chain connecting hole are respectively located at two vertices of the triangular shape; the locking part is a strip-shaped plate, and the locking part is connected with the third vertex of the connecting part and extends upward.
7. The rear lock latch of a dump truck according to claim 6, wherein The upper part of the front end surface of the contact plate is flush with the contact surface of the locking part, the lower part of the contact plate is located within the width of the connecting part, and the chain connecting hole is located in front of the lower part of the contact plate.
8. A dump truck comprising a frame and a cargo box, characterized in that The box is provided with the rear lock hook of the dump truck according to any one of claims 1-7, and when the box door of the box is in the closed state, the contact plate is attached to the box door.
9. The dump truck of claim 8, wherein, The bottom of the box is provided with a hook mounting seat, the lower end of the hook mounting seat extends to the lower rear side of the box, and the bottom of the hook plate is hingedly installed at the lower end of the hook mounting seat.
10. The dump truck of claim 8, wherein, The frame is provided with a chain mounting seat, the chain mounting seat is connected with a chain, and the other end of the chain is connected with the middle part of the hook plate.