Dumper carriage rear door locking mechanism

Abstract

The utility model discloses a dumper compartment rear door locking mechanism which comprises a compartment body, a compartment door is arranged on the outer side of the compartment body, a rotating shaft is arranged on the top of the compartment door, rotating bolts are arranged on the two sides of the rotating shaft, rotating openings are formed in the two sides of the top of the compartment body, and the rotating bolts move on the rotating openings. The electric push rod drives the sliding strip to slide on the mounting groove, the sliding strip slides through sliding of the sliding strip, the sliding strip can slide through sliding of the sliding strip, the sliding strip can slide through sliding of the sliding strip, the box door can be opened and closed automatically, the box door can be opened and closed automatically, and the opening and closing mechanism is used for driving the box door to be opened and closed automatically and is provided with clamping blocks on the two sides of the bottom of the box door. The upper rack drives the gear to rotate, that is, the rotating bolt is driven to rotate, the rotating bolt rotates on the rotating opening to drive the rotating shaft to rotate, so that the box door is opened and closed, and through contact of the first contact face and the second contact face, the sealing effect of the box door on the bottom of the compartment body is better.

Description

Technical Field

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

[0002] A dump truck is a vehicle that unloads goods by itself through hydraulic or mechanical lifting, also known as a tipping truck. It is composed of a car chassis, a hydraulic lifting mechanism, a cargo compartment, and a power take-off device. The compartment of a dump truck can be divided into two types: backward tipping and side tipping. The movement of the piston rod is controlled by the operating system. Backward tipping is more common. Pushing the piston rod will cause the compartment to tip. A few types can tip in both directions. In civil engineering, dump trucks often work in conjunction with excavators, loaders, belt conveyors and other engineering machinery to form a loading, transporting and unloading production line to load, unload and transport earth, sand and gravel, and bulk materials.

[0003] The rear doors of existing dump trucks are mostly opened and closed manually, that is, the bottom of the rear door is fixed by a lock structure, and the structure above the rear door is mostly movable, that is, it is opened according to the tilt degree of the dump truck. When the dump truck is not convenient to tilt, it needs to be supported before it can be opened, which is more troublesome when collecting materials. Utility Model Content

[0004] The utility model aims to provide a locking mechanism for a rear door of a dump truck compartment to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A locking mechanism for a rear door of a dump truck comprises a carriage body, a box door is arranged on the outside of the carriage body, a rotating shaft is arranged on the top of the box door, rotating bolts are arranged on both sides of the rotating shaft, rotating openings are arranged on both sides of the top of the carriage body, the rotating bolts are connected to the rotating openings, and the rotating bolts move on the rotating openings, an opening and closing mechanism is arranged on the outside of the rotating bolt, and the opening and closing mechanism is used to drive the box door to open and close automatically, clamping blocks are arranged on both sides of the bottom of the box door, and a clamping groove is arranged on the carriage body, and the clamping block is in contact with the clamping groove.

[0007] In a preferred embodiment of the utility model, the opening and closing mechanism includes a gear, mounting grooves are provided on both sides of the carriage body, a sliding bar is provided inside the mounting groove, the sliding bar slides inside the mounting groove, a rack is provided on the sliding bar, and the rack is meshed with the gear.

[0008] In a preferred implementation manner of the present utility model, an electric push rod is provided on one side of the installation slot, and the electric push rod is connected to the sliding bar.

[0009] In a preferred embodiment of the present utility model, limit strips are arranged on both sides of the sliding strip, a limit groove is arranged inside the installation groove, and the limit strip is slidably connected to the limit groove.

[0010] In a preferred embodiment of the present invention, shaft grooves are arranged on the outer side of the rotating bolt and the inner side of the rotating opening, and balls are arranged on the shaft grooves, and the balls roll on the shaft grooves.

[0011] In a preferred embodiment of the present utility model, an electric latch is arranged on the outside of the card slot, a slot is arranged on the outside of the card block, and the electric latch is connected to the slot.

[0012] In a preferred embodiment of the present utility model, a first contact surface is provided at the inner bottom of the compartment body, and a second contact surface is provided at the bottom of the compartment door, and the first contact surface and the second contact surface are in contact with each other.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0014] Beneficial effects: the electric push rod drives the sliding bar to slide on the installation groove, and the limit bar slides on the limit groove, so that the sliding bar remains stable when sliding on the inside of the installation groove, and the sliding of the sliding bar causes the rack above to rotate the gear, that is, drives the rotating bolt to rotate, and the rotating bolt rotates on the turning mouth, drives the rotating shaft to rotate, so that the box door is opened and closed, and the ball rolls on the shaft groove, so that the rotating bolt rotates on the turning mouth more conveniently, and the first contact surface and the second contact surface are in contact, so that the box door has a better sealing effect on the bottom of the car body.

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of the main structure of a locking mechanism for the rear door of a dump truck compartment;

[0018] Figure 2 It is a schematic diagram of the main structure of a compartment in a rear door locking mechanism of a dump truck;

[0019] Figure 3It is a schematic diagram of the box door structure in the locking mechanism of the rear door of a dump truck compartment;

[0020] Figure 4 The present invention is a schematic diagram of the connection structure of a sliding bar in a locking mechanism of a rear door of a dump truck compartment.

[0021] In the figure: 1. Carriage body; 11. Card slot; 12. Electric latch; 13. Rotary port; 14. Axle slot; 15. Ball bearing; 2. Carriage door; 21. Slot; 22. Card block; 23. Rotary shaft; 24. Rotary bolt; 25. Gear; 3. Mounting slot; 31. Limiting slot; 32. First contact surface; 33. Second contact surface; 4. Sliding bar; 41. Rack; 42. Electric push rod; 43. Limiting bar. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] Please refer to Figure 1-4 The utility model discloses a rear door locking mechanism for a dump truck compartment, comprising a compartment body 1, a box door 2 is arranged on the outer side of the compartment body 1, the compartment body 1 is the compartment body of the dump truck, and the box door 2 is the rear door of the compartment of the dump truck, that is, the compartment body 1 is opened and closed by the box door 2, and blocks 22 are arranged on both sides of the bottom of the box door 2, and a card slot 11 is arranged on the compartment body 1, and the card block 22 contacts the card slot 11, that is, when the box door 2 is closed on the compartment body 1, the card block 22 is limited by the card slot 11, that is, the box door 2 is limited so that its outer side just closes the compartment body 1, an electric latch 12 is arranged on the outer side of the card slot 11, and a slot 21 is arranged on the outer side of the card block 22, and the electric latch 12 is connected to the slot 21. When the box door 2 is closed, the electric latch 12 is inserted into the slot 21 to fix the box door 2.

[0024] A rotating shaft 23 is provided on the top of the box door 2, and rotating bolts 24 are provided on both sides of the rotating shaft 23. Turning ports 13 are provided on both sides of the top of the carriage body 1. The rotating bolts 24 are connected to the turning port 13, and the rotating bolts 24 move on the turning port 13. The rotating bolts 24 rotate on the turning port 13 to drive the rotating shaft 23 to rotate, so that the box door 2 is opened and closed. An axis groove 14 is provided on the outer side of the rotating bolt 24 and the inner side of the turning port 13. A ball 15 is provided on the axis groove 14. The ball 15 rolls on the axis groove 14, so that the rotating bolt 24 can rotate on the turning port 13 more conveniently. A first contact surface 32 is provided at the bottom of the inner side of the carriage body 1, and a second contact surface 33 is provided at the bottom of the box door 2. The first contact surface 32 and the second contact surface 33 are inclined surfaces. The first contact surface 32 and the second contact surface 33 are in contact with each other, so that the box door 2 has a better sealing effect on the bottom of the carriage body 1.

[0025] An opening and closing mechanism is arranged on the outside of the rotating bolt 24, and the opening and closing mechanism is used to drive the box door 2 to open and close automatically. The opening and closing mechanism includes a gear 25, and mounting grooves 3 are arranged on both sides of the carriage body 1. A sliding bar 4 is arranged on the inner side of the mounting groove 3. The sliding bar 4 slides inside the mounting groove 3, and a rack 41 is arranged on the sliding bar 4. The rack 41 is meshed with the gear 25. An electric push rod 42 is arranged on one side of the mounting groove 3. The electric push rod 42 is connected to the sliding bar 4, that is, the sliding bar 4 is driven to slide on the mounting groove 3 by the electric push rod 42. Through the sliding of the sliding bar 4, the rack 41 above drives the gear 25 to rotate, that is, the rotating bolt 24 is driven to rotate, and limit bars 43 are arranged on both sides of the sliding bar 4, and a limit groove 31 is arranged on the inner side of the mounting groove 3. The limit bar 43 is slidably connected with the limit groove 31, that is, it slides on the limit groove 31 through the limit bar 43, so that the sliding bar 4 can remain stable when sliding on the inner side of the mounting groove 3.

[0026] The working principle of the utility model is as follows: the sliding bar 4 is driven by the electric push rod 42 to slide on the installation groove 3, and the limiting bar 43 slides on the limiting groove 31, so that the sliding bar 4 remains stable when sliding on the inner side of the installation groove 3. Through the sliding of the sliding bar 4, the rack 41 above drives the gear 25 to rotate, that is, drives the rotating bolt 24 to rotate, and drives the rotating shaft 23 to rotate through the rotating bolt 24 on the rotating port 13, so that the box door 2 is opened and closed, and the ball 15 rolls on the shaft groove 14, so that the rotating bolt 24 rotates on the rotating port 13 more conveniently, and the first contact surface 32 and the second contact surface 33 are in contact, so that the box door 2 has a better sealing effect on the bottom of the car body 1. When the box door 2 is closed on the car body 1, the card block 22 is limited by the card slot 11, that is, the box door 2 is limited so that its outer side just closes the car body 1. After closing, the electric latch 12 is inserted into the slot 21 to fix the box door 2.

[0027] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A dump truck rear door locking mechanism, comprising a vehicle body (1), characterized in that: A box door (2) is arranged on the outside of the carriage body (1), a rotating shaft (23) is arranged on the top of the box door (2), rotating bolts (24) are arranged on both sides of the rotating shaft (23), rotating openings (13) are arranged on both sides of the top of the carriage body (1), the rotating bolts (24) are connected to the rotating openings (13), and the rotating bolts (24) move on the rotating openings (13), an opening and closing mechanism is arranged on the outside of the rotating bolt (24), and the opening and closing mechanism is used to drive the box door (2) to open and close automatically, and clamping blocks (22) are arranged on both sides of the bottom of the box door (2), and a clamping groove (11) is arranged on the carriage body (1), and the clamping block (22) is in contact with the clamping groove (11).

2. A dump truck rear door locking mechanism according to claim 1, characterized in that: The opening and closing mechanism comprises a gear (25), mounting grooves (3) are arranged on both sides of the carriage body (1), a sliding bar (4) is arranged inside the mounting groove (3), the sliding bar (4) slides inside the mounting groove (3), a rack (41) is arranged on the sliding bar (4), and the rack (41) is connected to the gear (25) in a toothed manner.

3. The rear door locking mechanism of a dump truck compartment according to claim 2, characterized in that: An electric push rod (42) is provided on one side of the installation groove (3), and the electric push rod (42) is connected to the sliding bar (4).

4. The rear door locking mechanism of a dump truck compartment according to claim 2, characterized in that: Limiting strips (43) are arranged on both sides of the sliding strip (4), a limiting groove (31) is arranged inside the mounting groove (3), and the limiting strip (43) is slidably connected to the limiting groove (31).

5. The rear door locking mechanism of a dump truck compartment according to claim 1, characterized in that: An axial groove (14) is arranged on the outer side of the rotating bolt (24) and the inner side of the rotating opening (13), and a ball (15) is arranged on the axial groove (14), and the ball (15) rolls on the axial groove (14).

6. The rear door locking mechanism of a dump truck compartment according to claim 1, characterized in that: An electric latch (12) is arranged outside the card slot (11), a slot (21) is arranged outside the card block (22), and the electric latch (12) is connected to the slot (21).

7. The rear door locking mechanism of a dump truck compartment according to claim 1, characterized in that: A first contact surface (32) is provided at the inner bottom of the carriage body (1), and a second contact surface (33) is provided at the bottom of the box door (2); the first contact surface (32) and the second contact surface (33) are in contact with each other.

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