An automatic hydraulic docking device for vehicles

Abstract

A kind of automatic hydraulic butt joint device for vehicle, including corresponding pull arm vehicle chassis and transfer box body, the pull arm vehicle chassis is provided with female hydraulic valve block, the transfer box body is provided with male hydraulic valve block, the female hydraulic valve block and male hydraulic valve block are symmetrically arranged, tightly adhere to enhance the stability of connection, effectively prevent accidental disconnection caused by vehicle driving vibration, inlet and outlet pipeline are arranged on the outer surface of hydraulic valve block, so that female, male valve block can be efficiently connected after pipeline, form complete hydraulic passage, so that hydraulic system runs stably.

Description

Technical Field

[0001] This utility model relates to a vehicle component, specifically to an automatic hydraulic docking device for vehicles. Background Technology

[0002] A hooklift truck is a commonly used type of truck with a detachable cargo box. The cargo box of a hooklift truck is a transfer container, which can be loaded onto the hooklift truck or detached from it. Hooklift trucks are most commonly used in waste disposal, where waste is transferred using the transfer container on the hooklift truck. The opening and closing of the rear door of the transfer container is achieved through the hydraulic system of the hooklift truck. The opening and closing action of the rear door of the transfer container is connected to the oil tank of the hooklift truck chassis through a hydraulic docking device. The driver needs to park the vehicle and get out to manually operate the system by plugging and unplugging the hydraulic oil connectors to connect and disconnect the hydraulic lines. During the plugging and unplugging process, a small amount of hydraulic oil leakage is unavoidable. The quick-connect connectors are operated under high pressure, and long-term use may lead to risks of oil leakage, blockage, and other failures.

[0003] In the prior art, the hydraulic circuits or hydraulic systems on hooklift trucks require manual operation to plug and unplug connectors during operation. This plugging and unplugging of connectors causes hydraulic oil leakage. In order to make the operation of the hydraulic circuits on hooklift trucks more convenient and efficient, this application uses an automatic docking device to dock and connect the hydraulic circuits, avoiding manual plugging and unplugging, which causes repeated plugging and unplugging of hydraulic circuit modules and resulting in hydraulic oil leakage. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an automatic hydraulic docking device for vehicles.

[0005] This utility model is achieved using the following technical solution: An automatic hydraulic docking device for vehicles, comprising a hooklift truck chassis and a transfer box arranged corresponding to each other, characterized in that a female hydraulic valve block is provided on the hooklift truck chassis, a male hydraulic valve block is provided on the transfer box, the female hydraulic valve block and the male hydraulic valve block are arranged symmetrically to each other, inlet and outlet pipelines are provided on the female hydraulic valve block and the male hydraulic valve block, a guide component is provided on the female hydraulic valve block, and a pin hole adapted to the guide component is provided on the male hydraulic valve block.

[0006] The inlet and outlet pipelines are divided into inlet pipelines and outlet pipelines, which are located on the outer surface of the hydraulic valve block. The guide component is a positioning pin.

[0007] The pin hole on the male hydraulic valve block and the positioning pin on the female hydraulic valve block are mutually compatible, and the pin hole on the male hydraulic valve block is a tapered pin hole.

[0008] The male hydraulic valve block is equipped with a sliding device, which is a sliding module and a spring pin. The male hydraulic valve block moves with the transfer box.

[0009] The spring pin drives the male hydraulic valve block and the female hydraulic valve block to adapt to each other, and the positioning pin on the female hydraulic valve block is inserted into the pin hole on the male hydraulic valve block.

[0010] The male hydraulic valve block has a built-in waist-shaped groove, within which it can move left and right. The male hydraulic valve block also has a built-in spring pin, which allows it to move up and down in the direction of the pin.

[0011] Compared to existing technologies, this utility model achieves efficient, stable, and reliable automatic hydraulic docking by interlocking the female and male hydraulic valve blocks. The positioning pin integrated in the female hydraulic valve block and the tapered pin hole on the male hydraulic valve block form a mutually compatible structure, ensuring that the positioning pin accurately slides into the pin hole during the docking process. This significantly improves the success rate and efficiency of the docking, avoiding repeated insertion and removal of the interface position, which can cause hydraulic oil leakage. The cooperation between the female and male hydraulic valve blocks makes the assembly of their hydraulic circuits more convenient, and the tight fit enhances the stability of the connection, effectively preventing accidental disengagement due to vehicle vibration. The inlet and outlet pipes are arranged on the outer surface of the hydraulic valve blocks. The up, down, left, and right movement of the male hydraulic valve block allows the positioning pin of the female hydraulic valve block to function, ultimately connecting the male and female hydraulic valve blocks. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial enlarged view of the present invention; Figure 3 This is a partially enlarged view of the present invention; Figure 4 This is a plan view of the present invention; In the diagram: 1 is the hooklift truck chassis, 2 is the transfer box, 3 is the female hydraulic valve block, 4 is the male hydraulic valve block, 5 is the pin hole, 6 is the inlet and outlet pipeline, 7 is the positioning pin, and 8 is the spring pin. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0014] An automatic hydraulic docking device for vehicles includes a hooklift truck chassis 1 and a transfer box 2 arranged corresponding to each other. The hooklift truck chassis 1 is equipped with a female hydraulic valve block 3, and the transfer box 2 is equipped with a male hydraulic valve block 4. The female hydraulic valve block 3 and the male hydraulic valve block 4 are symmetrically arranged. Inlet and outlet pipes 6 are provided on the female hydraulic valve block 3 and the male hydraulic valve block 4. A guide component is provided on the female hydraulic valve block, and a pin hole 5 adapted to the guide component is provided on the male hydraulic valve block 4.

[0015] In order for the hydraulic system to operate well and form a relatively complete circuit, inlet and outlet pipes 6 need to be provided on the male hydraulic valve block 4 and the female hydraulic valve block 3. The hydraulic oil circuit is circulated by the inlet and outlet pipes 6. Therefore, the inlet and outlet pipes 6 are divided into inlet pipes and outlet pipes. The inlet pipes are used to enter the circuit and the outlet pipes are used to exit the circuit. The inlet and outlet pipes are located on the outer surface of the hydraulic valve block. The guide component is the positioning pin 7.

[0016] The pin hole 5 on the male hydraulic valve block 4 and the positioning pin 7 on the female hydraulic valve block 3 are mutually compatible. The pin hole 5 on the male hydraulic valve block 4 is a tapered pin hole. By relying on the mutual cooperation between the pin hole 5 on the male hydraulic valve block 4 and the positioning pin 7 on the female hydraulic valve block 3, the connection between the two can be avoided by repeatedly plugging and unplugging them, so that the hydraulic oil avoids the risk of leakage and meets the needs of the hydraulic system operation. The pin hole 5 on the male hydraulic valve block 4 and the positioning pin 7 on the female hydraulic valve block 3 also make the assembly of the two more convenient.

[0017] The male hydraulic valve block 4 can be configured as a movable structure, so a sliding device, namely a spring pin 8, is provided on the male hydraulic valve block 4. The transfer box 2 drives the male hydraulic valve block 4 to move, and the spring pin drives the male hydraulic valve block 4 and the female hydraulic valve block 3 to adapt to each other. The positioning pin 7 on the female hydraulic valve block 3 is inserted into the pin hole 5 on the male hydraulic valve block 4. The male hydraulic valve block 4 has a built-in waist-shaped groove, and the male hydraulic valve block 4 moves left and right in the waist-shaped groove. The built-in spring pin 8 on the male hydraulic valve block 4 allows the male hydraulic valve block 4 to move up and down in the pin direction. When the male hydraulic valve block 4 moves, it can better assemble with the female hydraulic valve block 3. The up, down and left and right movement of the male hydraulic valve block 4 allows the positioning pin 7 of the female hydraulic valve block 3 to play its role, and finally connects the male hydraulic valve block 4 and the female hydraulic valve block 3. The assembly time is shorter, and the assembly efficiency between the two can be improved, which meets the needs of hydraulic circuit assembly.

[0018] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A vehicle automatic hydraulic docking device, comprising a drawbar vehicle chassis and a transfer box body arranged in correspondence with each other, characterized in that: The hooklift chassis is equipped with a female hydraulic valve block, and the transfer box is equipped with a male hydraulic valve block. The female and male hydraulic valve blocks are symmetrically arranged. The female and male hydraulic valve blocks are equipped with inlet and outlet pipes. The female hydraulic valve block is equipped with a guide component, and the male hydraulic valve block is equipped with a pin hole adapted to the guide component.

2. The automatic hydraulic docking device for a vehicle according to claim 1, characterized in that: The inlet and outlet pipelines are divided into inlet pipelines and outlet pipelines, which are located on the outer surface of the hydraulic valve block. The guide component is a positioning pin.

3. The automatic hydraulic docking device for a vehicle of claim 2, wherein: The pin hole on the male hydraulic valve block and the positioning pin on the female hydraulic valve block are mutually compatible, and the pin hole on the male hydraulic valve block is a tapered pin hole.

4. The automatic hydraulic docking device for a vehicle of claim 2, wherein: The male hydraulic valve block is equipped with a sliding device, which is a sliding module and a spring pin. The male hydraulic valve block moves with the transfer box.

5. The automatic hydraulic docking device for a vehicle of claim 4, wherein: The spring pin drives the male hydraulic valve block and the female hydraulic valve block to adapt to each other, and the positioning pin on the female hydraulic valve block is inserted into the pin hole on the male hydraulic valve block.

6. The automatic hydraulic docking device for a vehicle of claim 4, wherein: The male hydraulic valve block has a built-in waist-shaped groove, within which it can move left and right. The male hydraulic valve block also has a built-in spring pin, which allows it to move up and down in the direction of the pin.

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