Dumper carriage tail plate locking device

Abstract

The utility model relates to the technical field of dump trucks, and discloses a dump truck carriage tail plate locking device which comprises a box body, the box body comprises a bottom plate, a front plate, a side plate and a tail plate, the tail plate is connected with the bottom plate in a rotating mode, and a locking mechanism is arranged between the tail plate and the side plate. The locking piece comprises a hook arranged on the side plate and a locking piece body arranged on the tail plate, the locking piece body comprises a connecting buckle, a push-pull handle, a base and a connecting piece, the base is fixedly connected to the tail plate, the connecting piece is movably connected to the base, and the connecting buckle is fixedly connected to the tail plate. The push-and-pull handle is movably connected to the base and the connecting piece, the connecting buckle is connected to the end, away from the handle, of the connecting piece, the push-and-pull handle drives the connecting piece to drive the connecting buckle to be connected with or separated from the hook, and the effects of being easy to operate and stable in locking performance are achieved.

Description

Technical Field

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

[0002] A dump truck is a vehicle that unloads goods by itself through hydraulic or mechanical lifting. It is also called 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. The backward tipping is more common. Pushing the piston rod causes the compartment to tip. A few cases have two-way tipping. Since latches are often used in the prior art, the activity scene of dump trucks is often in poor ground conditions, and the latch locking stability is poor. Utility Model Content

[0003] The utility model aims to provide a locking device for the tail plate of a dump truck compartment, which has the effects of simple operation and stable locking performance.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions: a locking device for the tail plate of a dump truck compartment, comprising a box body, the box body comprising a bottom plate, a front plate, a side plate and a tail plate, the tail plate is rotatably connected to the bottom plate, a locking mechanism is arranged between the tail plate and the side plate, the locking mechanism comprises a hook arranged on the side plate and a locking member arranged on the tail plate, the locking member comprises a connecting buckle, a push-pull handle, a base, and a connecting member, the base is fixedly connected to the tail plate, the connecting member is movably connected to the base, the push-pull handle is movably connected to the base and the connecting member, the connecting buckle is connected to an end of the connecting member away from the handle, and the push-pull handle drives the connecting member to drive the connecting buckle to connect or separate with the hook.

[0005] The utility model is further configured as follows: the connecting member includes a connecting frame and a connecting arm, the connecting arm is movably connected in the connecting frame, the connecting buckle is connected to the end of the connecting arm, one end of the push-pull handle is rotatably connected to the base, and the middle of the push-pull handle is rotatably connected to the inside of the connecting frame.

[0006] The utility model is further configured as follows: strip holes are opened on opposite sides of the connection frame, a plug-in rod is vertically arranged at one end of the connection arm away from the connection buckle, and both ends of the plug-in rod are slidably plugged into the strip holes.

[0007] The utility model is further configured as follows: a spring is provided on a movable sleeve on the connecting arm located in the connecting frame.

[0008] The utility model is further configured as follows: a connection hole is provided below the connection frame, a rotation rod is provided in the middle of the push-pull handle, and the rotation rod is rotatably connected in the connection hole.

[0009] The utility model is further configured as follows: two locking mechanisms are provided, and the two locking mechanisms are arranged on opposite left and right sides of the tail plate.

[0010] The beneficial effect of the utility model is that the utility model can achieve the effect of fast locking and opening of the tail plate of the dump truck. Since the prior art often uses a latch, the activity scene of the dump truck is often in a situation where the ground conditions are bad, and the locking stability of the latch is poor. Therefore, the locking stability of the locking device in the utility model is relatively high. By moving the push-pull handle upward, the push-pull handle will push up the connecting arm through the connecting frame, and the connecting arm will drive the connecting buckle at the end to fall off the hook. At the same time, the utility model is provided with a spring on the connecting arm. When the connecting buckle and the hook are hooked, the spring is compressed, and the rebound force of the spring will pull the connecting arm downward, so that the connecting buckle has a downward pulling force on the hook, which can prevent the connecting buckle from falling off. The utility model has the effect of simple operation and stable locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] Figure 2 yes Figure 1 Schematic diagram of the local structure at point A in the middle.

[0014] Figure 3 It is a schematic diagram of the exploded structure of the locking mechanism of the utility model.

[0015] In the figure, 1, box body; 11, bottom plate; 12, front plate; 13, side plate; 14, tail plate; 2, locking mechanism; 3, hook; 4, connecting buckle; 5, push-pull handle; 51, rotating rod; 6, base; 7, connecting frame; 71, strip hole; 72, connecting hole; 8, connecting arm; 81, plug-in rod; 9, spring. DETAILED DESCRIPTION

[0016] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Examples, such as Figure 1 , Figure 2 As shown, a locking device for the tail plate of a dump truck compartment comprises a box body 1, wherein the box body 1 comprises a bottom plate 11, a front plate 12, a side plate 13 and a tail plate 14, wherein the tail plate 14 is rotatably connected to the bottom plate 11, and a locking mechanism 2 is arranged between the tail plate 14 and the side plate 13, wherein the locking mechanism 2 comprises a hook 3 arranged on the side plate 13 and a locking member arranged on the tail plate 14, wherein the locking member comprises a connecting buckle 4, a push-pull handle 5, a base 6, and a connecting member, wherein the base 6 is fixedly connected to the tail plate 14, the connecting member is movably connected to the base 6, the push-pull handle 5 is movably connected to the base 6 and the connecting member, the connecting buckle 4 is connected to an end of the connecting member away from the handle 5, and the push-pull handle 5 drives the connecting member to drive the connecting buckle 4 to connect or separate from the hook 3.

[0018] like Figure 3 As shown, the connecting member includes a connecting frame 7 and a connecting arm 8, the connecting arm 8 is movably connected in the connecting frame 7, the connecting buckle 4 is connected to the end of the connecting arm 8, one end of the push-pull handle 5 is rotatably connected to the base 6, and the middle of the push-pull handle 5 is rotatably connected to the inside of the connecting frame 7.

[0019] like Figure 3 As shown, strip holes 71 are opened on opposite sides of the connection frame 7 , and a plug-in rod 81 is vertically arranged at one end of the connection arm 8 away from the connection buckle 4 , and both ends of the plug-in rod 81 are slidably plugged into the strip holes 71 .

[0020] like Figure 3 As shown, a spring 9 is movably mounted on the connecting arm 8 in the connecting frame 7 .

[0021] like Figure 3 As shown, a connection hole 72 is provided below the connection frame 7 , and a rotation rod 51 is provided in the middle of the push-pull handle 5 , and the rotation rod 51 is rotatably connected in the connection hole 72 .

[0022] like Figure 3 As shown, two locking mechanisms 2 are provided, and the two locking mechanisms 2 are provided on the left and right sides of the tail plate 14 .

[0023] The utility model can achieve the effect of fast locking and opening of the tailgate 14 of the dump truck. Since the prior art often uses a latch, the activity scene of the dump truck is often in a situation where the ground conditions are bad, and the locking stability of the latch is poor. Therefore, the locking stability of the locking device in the utility model is relatively high. By moving the push-pull handle 5 upward, the push-pull handle 5 will push up the connecting arm 8 through the connecting frame 7, and the connecting arm 8 will drive the connecting buckle 4 at the end to fall off from the hook 3. At the same time, the utility model is provided with a spring 9 on the connecting arm 8. When the connecting buckle 4 and the hook 3 are hooked, the spring 9 is compressed, and the rebound force of the spring 9 will pull the connecting arm 8 downward, so that the connecting buckle 4 has a downward pulling force on the hook 3, which can prevent the connecting buckle 4 from falling off. The utility model has the effect of simple operation and stable locking.

Claims

1. A locking device for the tailgate of a dump truck, characterized in that: The invention comprises a box body (1), wherein the box body (1) comprises a bottom plate (11), a front plate (12), a side plate (13) and a tail plate (14); the tail plate (14) is rotatably connected to the bottom plate (11); a locking mechanism (2) is arranged between the tail plate (14) and the side plate (13); the locking mechanism (2) comprises a hook (3) arranged on the side plate (13) and a locking member arranged on the tail plate (14); the locking member comprises a connecting buckle (4), a push-pull handle (5), a base (6) and a connecting member; the base (6) is fixedly connected to the tail plate (14); the connecting member is movably connected to the base (6); the push-pull handle (5) is movably connected to the base (6) and the connecting member; the connecting buckle (4) is connected to an end of the connecting member away from the handle (5); the push-pull handle (5) drives the connecting member to drive the connecting buckle (4) to connect or separate from the hook (3).

2. A dump truck tailgate locking device according to claim 1, characterized in that: The connecting member comprises a connecting frame (7) and a connecting arm (8), wherein the connecting arm (8) is movably connected in the connecting frame (7), the connecting buckle (4) is connected to the end of the connecting arm (8), one end of the push-pull handle (5) is rotatably connected to the base (6), and the middle of the push-pull handle (5) is rotatably connected to the inside of the connecting frame (7).

3. A dump truck tailgate locking device according to claim 2, characterized in that: The connection frame (7) has strip holes (71) formed on opposite sides thereof, and an inserting rod (81) is vertically arranged at one end of the connection arm (8) away from the connection buckle (4), and both ends of the inserting rod (81) are slidably inserted into the strip hole (71).

4. A dump truck tailgate locking device according to claim 3, characterized in that: A spring (9) is movably sleeved on the connecting arm (8) located in the connecting frame (7).

5. A dump truck tailgate locking device according to claim 4, characterized in that: A connection hole (72) is provided below the connection frame (7), a rotating rod (51) is provided in the middle of the push-pull handle (5), and the rotating rod (51) is rotatably connected in the connection hole (72).

6. A dump truck tailgate locking device according to claim 5, characterized in that: The locking mechanisms (2) are provided in two numbers, and the two locking mechanisms (2) are arranged on opposite left and right sides of the tail plate (14).

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