Electric dumper with rear door locking mechanism

Abstract

The utility model relates to the technical field of dump trucks, and discloses an electric dump truck with a rear door locking mechanism, which comprises a dump truck head, an electric carriage is rotatably arranged on the right side of the dump truck head, the left side of the electric carriage is mutually connected with the dump truck head through an electric pushing structure, and a rotating rear door is arranged at the upper end of the right side of the electric carriage through a rotating shaft; a locking assembly is arranged at the lower right end of the electric carriage. According to the electric dumper with the rear door locking mechanism, a fixed rotating shaft and a first positioning rod can be fixed through a locking plate, an electric carriage and a rotating rear door are locked and limited, the locking plate can be limited again through a second positioning rod, the situation that the locking plate is loosened due to bumpy roads is avoided, and the safety of the electric dumper is improved. And the bearing plate can be detached through the fixing screws, so that the bearing plate, the second positioning rod and the connecting spring are replaced, and the situation that the second positioning rod cannot be attached to the lower end of the first positioning rod due to the fact that the connecting spring is too long and cannot be pulled is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dump trucks, in particular to an electric dump truck with a rear door locking mechanism. Background Art

[0002] A dump truck is a vehicle that can automatically unload the goods it carries. It usually lifts the car body hydraulically or electrically, so that the car body is in a tilted state, which is convenient for unloading the empty goods in the car body. Dump trucks play an important role in the construction industry. On construction sites, dump trucks can quickly unload materials such as sand, stone, and cement, saving a lot of time and labor costs and improving construction efficiency. To ensure the stability of the rear door, it is usually necessary to set a locking structure between the rear door and the car body to prevent the rear door from opening by mistake or the goods from falling out.

[0003] The existing rear door of a dump truck is connected to the upper end of the car body by a rotating shaft, and the lower ends are fixed to each other by a locking structure. The traditional locking structure is composed of a rotating plate structure and a positioning rod. In actual use, due to the fitting connection between the plate structure and the positioning rod, its stability is poor. As the road is bumpy, the plate structure is very likely to rotate. At this time, it is difficult to ensure stable locking and fixation between the rear door of the dump truck and the car body. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an electric dump truck with a rear door locking mechanism. By adding a self-locking structure to the locking structure, the locking plate and the first positioning rod are again limited when the locking plate is rotated to lock, thereby avoiding the limiting effect being affected by road bumps.

[0005] The utility model provides the following technical solutions: an electric dump truck with a rear door locking mechanism, comprising a dump truck head, an electric compartment rotatably arranged on the right side of the dump truck head, and the left side of the electric compartment is interconnected with the dump truck head through an electrical driving structure, and a rotating rear door is arranged on the upper end of the right side of the electric compartment through a rotating shaft; a locking assembly is arranged on the lower right end of the electric compartment, and the locking assembly is interconnected with the lower end of the rotating rear door, a mounting assembly is arranged on the locking assembly, and a positioning assembly is arranged on the right side of the locking assembly.

[0006] Furthermore, the locking assembly includes a fixed rotating shaft and a first positioning rod, and the fixed rotating shaft is fixedly installed on the lower right end of the electric compartment, and the first positioning rod is fixedly installed on the lower end of the rotating rear door side. Through the above structure, it is convenient to support the locking plate through the fixed rotating shaft without affecting the rotation of the locking plate.

[0007] Furthermore, the locking assembly also includes a locking plate, and the locking plate forms a rotating mechanism with the fixed rotating shaft through a first groove opened on the left side of the locking plate, and the second groove opened on the right side of the locking plate is tightly fitted with the first positioning rod. Through the above structure, it is convenient to achieve the connection and fixation between the fixed rotating shaft and the first positioning rod under the action of the locking plate.

[0008] Furthermore, the installation assembly includes a fixing screw and a socket plate, and the fixing screw is connected to the locking plate through a threaded hole opened on the right side of the locking plate, and the socket plate is penetrated by a fixing screw, and the left side of the socket plate is tightly fitted with the right side of the locking plate. Through the above structure, the socket plate can be easily fixed to the locking plate by the fixing screw.

[0009] Furthermore, the positioning assembly includes a second positioning rod, which is arranged on the supporting plate, and the second positioning rod is fitted with the locking plate through a cylindrical positioning groove opened on the right side of the locking plate. Through the above structure, it is convenient to use the second positioning rod to achieve re-fitting and limiting the second positioning rod and the locking plate, thereby ensuring the stability of the locking plate.

[0010] Furthermore, the positioning assembly also includes a pulling handle and a connecting spring. The pulling handle is fixedly installed on the rear end of the second positioning rod, and the pulling handle is fixedly connected to the connecting spring, and the connecting spring is fixedly connected to the receiving plate. Through the above structure, the pulling handle can be pulled and moved by the connecting spring.

[0011] Furthermore, a soft rubber layer with a matte surface is arranged on the outside of the pulling handle. Through the above structure, the friction force when pulling can be increased under the action of the pulling handle, so as to avoid the pulling handle slipping when pulling.

[0012] Furthermore, two of the fixed rotating shaft, the first positioning rod and the locking plate are symmetrically arranged front and back about the center of the electric car. Through the above structure, it is convenient to stably fix the lower end of the rotating rear door.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The electric dump truck with a rear door locking mechanism can fix the fixed rotating shaft and the first positioning rod through the locking plate, so as to lock and limit the electric car and the rotating rear door, and the locking plate can be limited again through the second positioning rod, so as to avoid the locking plate being loosened due to road bumps, and the receiving plate can be disassembled by the fixing screws, so that the receiving plate, the second positioning rod and the connecting spring can be replaced, so as to avoid the connecting spring being overworked and deformed due to long-term use, that is, to avoid the second positioning rod being unable to fit with the lower end of the first positioning rod due to the connection spring being unable to be pulled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure of the front of the dump truck of the utility model;

[0016] Figure 2 This is a schematic diagram of the main three-dimensional structure of the electric car of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating rear door of the utility model in side view;

[0018] Figure 4 This is a schematic diagram of the main perspective cross-sectional structure of the locking plate of the utility model;

[0019] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the locking assembly of the utility model.

[0020] In the figure: 1. front of the dump truck; 2. electric compartment; 3. rotating rear door; 4. locking assembly; 401. fixed shaft; 402. first positioning rod; 403. locking plate; 5. installation assembly; 501. fixing screw; 502. receiving plate; 6. positioning assembly; 601. second positioning rod; 602. pulling handle; 603. connecting spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: an electric dump truck with a rear door locking mechanism, comprising a dump truck head 1, an electric car 2 is rotatably arranged on the right side of the dump truck head 1, and the left side of the electric car 2 is connected to the dump truck head 1 through an electrical driving structure, and a rotating rear door 3 is arranged on the upper right end of the electric car 2 through a rotating shaft; a locking assembly 4 is arranged on the lower right end of the electric car 2, and the locking assembly 4 is connected to the lower end of the rotating rear door 3; the locking assembly 4 comprises a fixed rotating shaft 401 and a first positioning rod 402, and the fixed rotating shaft 401 is fixedly installed on the lower right end of the electric car 2, and the first positioning rod 402 is fixedly installed on the lower end of the side of the rotating rear door 3; the locking assembly 4 also comprises a locking plate 403, and the locking plate 403 forms a rotating mechanism with the fixed rotating shaft 401 through a first groove opened on the left side thereof, and the second groove opened on the right side of the locking plate 403 is tightly fitted with the first positioning rod 402; the fixed rotating shaft 401, the first positioning rod 402 and the locking plate 403 are all symmetrically arranged with two about the center of the electric car 2.

[0023] The right side of the dump truck front 1 forms a rotating mechanism with the right lower end of the electric car 2 through a rotating shaft, and the electric car 2 is connected to the dump truck front 1 through an electrical driving structure. Therefore, when it is necessary to unload the goods, the locking plate 403 is rotated, and the locking plate 403 begins to rotate around the fixed rotating shaft 401. At this time, as the locking plate 403 rotates, the locking plate 403 is no longer in contact with the first positioning rod 402, and then the electrical driving structure can be used to push the left side of the electric car 2, so that the electric car 2 is in a tilted state, thereby realizing the unloading of the goods in the electric car 2. At this time, the rotating rear door 3 begins to rotate around the upper end of the electric car 2 (the electric car 2 is rotatably connected with the rotating rear door 3 through the rotating shaft installed at its upper end), so as to achieve the purpose of automatically unloading the goods.

[0024] A positioning assembly 6 is provided on the right side of the locking assembly 4; the positioning assembly 6 includes a second positioning rod 601, the second positioning rod 601 is penetrated and arranged on the receiving plate 502, and the second positioning rod 601 is fitted with the locking plate 403 through a cylindrical positioning groove opened on the right side of the locking plate 403; the positioning assembly 6 also includes a pulling handle 602 and a connecting spring 603, the pulling handle 602 is fixedly installed on the rear end of the second positioning rod 601, and the pulling handle 602 is fixedly connected to the connecting spring 603, and the connecting spring 603 is fixedly connected to the receiving plate 502; a soft rubber layer with a matte surface is provided on the outside of the pulling handle 602.

[0025] When it is necessary to lock the electric compartment 2 and the rotating rear door 3, the rotating rear door 3 is pushed to rotate the rotating rear door 3 toward the electric compartment 2, and then the locking plate 403 is rotated clockwise. At this time, the locking plate 403 begins to rotate around the fixed rotating shaft 401 until the locking plate 403 begins to fit with the first positioning rod 402, thereby achieving the purpose of fitting and locking the first positioning rod 402. In this process, as the locking plate 403 rotates toward the first positioning rod 402, the second positioning rod 601 opens. The second positioning rod 601 is initially squeezed and pushed by the first positioning rod 402 (because the lower end of the second positioning rod 601 is set as a wedge-shaped structure, therefore, when the second positioning rod 601 is squeezed, the second positioning rod 601 begins to move), and as the second positioning rod 601 moves, the connecting spring 603 installed on the second positioning rod 601 begins to be stretched and deformed. When the upper end of the first positioning rod 402 fits with the locking plate 403, as the connecting spring 603 recovers its deformation, the connecting spring 603 begins to pull the second positioning rod 601. At this time, the second positioning rod 601 The positioning rod 601 begins to engage with the lower end of the first positioning rod 402, so as to achieve a re-locking limit between the first positioning rod 402 and the locking plate 403 to prevent the locking plate 403 from rotating and loosening due to road bumps. When the goods need to be unloaded, the pulling handle 602 is pulled. Since the pulling handle 602 is connected to the second positioning rod 601, it begins to move away from the locking plate 403. The connecting spring 603 installed on the pulling handle 602 begins to be stretched and deformed until The second positioning rod 601 is no longer in contact with the lower end of the first positioning rod 402. At this time, the pulling handle 602 can be rotated. Because the pulling handle 602 is arranged on the locking plate 403, the locking plate 403 starts to rotate around the fixed rotating shaft 401 until the locking plate 403 is no longer in contact with the first positioning rod 402. At this time, the limit between the fixed rotating shaft 401 and the first positioning rod 402 can be released, that is, the purpose of releasing the locking limit between the electric car 2 and the rotating rear door 3 is achieved, which is convenient for subsequent tilting and unloading.

[0026] An installation component 5 is provided on the locking component 4; the installation component 5 includes a fixing screw 501 and a receiving plate 502, and the fixing screw 501 is connected to the locking plate 403 through a threaded hole opened on the right side of the locking plate 403, and the receiving plate 502 is penetrated by the fixing screw 501, and the left side of the receiving plate 502 is tightly fitted with the right side of the locking plate 403.

[0027] As the usage time increases, the connecting spring 603 will become overworked and deformed. At this time, the pulling force of the connecting spring 603 on the pulling handle 602 is reduced, and it is difficult to ensure that the second positioning rod 601 is stably combined with the lower end of the first positioning rod 402. At this time, the fixing screw 501 can be rotated, and it begins to move away from the receiving plate 502 until the fixing screw 501 is no longer connected to the threaded hole opened on the right side of the locking plate 403. The locking plate 403 can be disassembled and replaced, and the locking plate 403 and the positioning assembly 6 can be replaced and disassembled to avoid affecting the auxiliary locking effect due to overwork and deformation of the connecting spring 603.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric dump truck with a rear door locking mechanism, comprising a dump truck head (1), a right side of which is provided with an electric compartment (2) for rotation, and a left side of the electric compartment (2) is connected to the dump truck head (1) via an electric driving structure, and a rotating rear door (3) is provided at the upper right end of the electric compartment (2) via a rotating shaft; characterized in that: Also includes: A locking assembly (4) is provided at the lower right end of the electric carriage (2), and the locking assembly (4) is connected to the lower end of the rotating rear door (3), a mounting assembly (5) is provided on the locking assembly (4), and a positioning assembly (6) is provided on the right side of the locking assembly (4).

2. The electric dump truck with a rear door locking mechanism according to claim 1, characterized in that: The locking assembly (4) comprises a fixed rotating shaft (401) and a first positioning rod (402), wherein the fixed rotating shaft (401) is fixedly mounted on the lower right end of the electric vehicle compartment (2), and the first positioning rod (402) is fixedly mounted on the lower side of the rotating rear door (3).

3. The electric dump truck with a rear door locking mechanism according to claim 2, characterized in that: The locking assembly (4) further comprises a locking plate (403), and the locking plate (403) forms a rotating mechanism with the fixed rotating shaft (401) through a first groove opened on the left side thereof, and a second groove opened on the right side of the locking plate (403) is tightly fitted with the first positioning rod (402).

4. The electric dump truck with a rear door locking mechanism according to claim 3, characterized in that: The mounting assembly (5) comprises a fixing screw (501) and a receiving plate (502), wherein the fixing screw (501) is connected to the locking plate (403) via a threaded hole provided on the right side of the locking plate (403), and the receiving plate (502) is penetrated by the fixing screw (501), and the left side of the receiving plate (502) is tightly fitted with the right side of the locking plate (403).

5. The electric dump truck with a rear door locking mechanism according to claim 4, characterized in that: The positioning assembly (6) comprises a second positioning rod (601), which is arranged on the receiving plate (502) through a cylindrical positioning groove provided on the right side of the locking plate (403) and is fitted with the locking plate (403).

6. The electric dump truck with a rear door locking mechanism according to claim 5, characterized in that: The positioning assembly (6) further comprises a pulling handle (602) and a connecting spring (603), wherein the pulling handle (602) is fixedly mounted on the rear end of the second positioning rod (601), the pulling handle (602) is fixedly connected to the connecting spring (603), and the connecting spring (603) is fixedly connected to the receiving plate (502).

7. The electric dump truck with a rear door locking mechanism according to claim 6, characterized in that: The pulling handle (602) is provided with a soft rubber layer with a matte surface on the outside.

8. The electric dump truck with a rear door locking mechanism according to claim 2, characterized in that: Two of the fixed rotating shaft (401), the first positioning rod (402) and the locking plate (403) are symmetrically arranged front and back about the center of the electric carriage (2).

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