Valve bank unit for lifting and steering of electric light truck

Abstract

The utility model relates to the technical field of electric light trucks, in particular to a valve group unit for lifting and steering of an electric light truck, which comprises an oil tank, an integrated hydraulic function valve group and a hydraulic oil circuit, the integrated hydraulic function valve group is arranged at the top of the oil tank, and the hydraulic oil circuit is connected with the oil tank and the integrated hydraulic function valve group. The integrated hydraulic function valve set comprises a transition block, a pressure measuring connector, a throttling valve, an overflow valve, a one-way valve, a stop valve and an electromagnetic valve, and the transition block is fixedly installed on the top of the oil tank. A transition block, a pressure measuring connector, a throttling valve, an overflow valve, a one-way valve, a stop valve and an electromagnetic valve form an integrated hydraulic function valve set, and the integrated hydraulic function valve set, an oil tank and a hydraulic oil way are matched with a client motor pump on the electric light truck, so that electric lifting of a lifting hydraulic power unit of the electric light truck can be guaranteed; constant-speed electric descending is achieved, and emergency safe descending under the condition that the system works abnormally can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electric light truck valve assembly technology, specifically to a valve assembly unit for lifting and steering electric light trucks. Background Technology

[0002] Electric light trucks have a wide range of applications, especially in urban logistics and express delivery. They are generally environmentally friendly and efficient logistics transportation tools, meeting the market's demand for such tools and promoting the green transformation of the logistics industry. The lifting and steering provided by hydraulic cylinders are extremely important in electric light trucks. They use the hydraulic system to provide strong lifting force to achieve stable lifting and steering of goods.

[0003] In existing electric light truck lifting hydraulic power units, the check valves, relief valves, normally closed solenoid valves, throttle valves, and shut-off valves in the hydraulic control valve group are usually distributed independently, resulting in poor assembly and connection integration, and complicated connection paths between the valve group and the hydraulic oil tank, leading to a high risk of leakage. Therefore, a valve group unit for electric light truck lifting and steering is proposed. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a valve group unit for lifting and steering electric light trucks. Through the integrated hydraulic functional valve group, oil tank and hydraulic oil circuit of this application, in conjunction with the client motor pump on the electric light truck, the electric lifting hydraulic power unit of the electric light truck can be guaranteed to lift electric lifting, achieve uniform electric descent, and ensure emergency safe descent in case of system malfunction, thus ensuring operational safety.

[0005] The technical solution adopted by this utility model to solve its technical problem is a valve group unit for lifting and steering of an electric light truck, including an oil tank, an integrated hydraulic function valve group and a hydraulic oil circuit. The integrated hydraulic function valve group is located on the top of the oil tank, and the hydraulic oil circuit is connected to the oil tank and the integrated hydraulic function valve group.

[0006] The integrated hydraulic functional valve group includes a transition block, a pressure test connector, a throttle valve, a relief valve, a check valve, a shut-off valve, and a solenoid valve. The transition block is fixedly installed on the top of the oil tank.

[0007] By adopting the above technical solution, an integrated hydraulic functional valve group is formed by a transition block, pressure test connector, throttle valve, overflow valve, check valve, shut-off valve and solenoid valve. Through the integrated hydraulic functional valve group, oil tank and hydraulic circuit of this application, in conjunction with the client motor pump on the electric light truck, the electric lifting hydraulic power unit of the electric light truck can be guaranteed to lift, achieve uniform electric descent, and ensure emergency safe descent in case of abnormal system operation.

[0008] Specifically, the pressure testing connector, throttle valve, and overflow valve are sequentially arranged on one side of the transition block, while the check valve, shut-off valve, and solenoid valve are arranged on the other side of the transition block.

[0009] By adopting the above technical solution, the transition block provides an interface for connecting each hydraulic valve group component; the pressure test connector is used to measure the working pressure of the hydraulic system; the throttle valve is used to regulate the flow rate of hydraulic oil, thereby controlling the descent speed of the cylinder; the relief valve is used to set the maximum working pressure of the system. When the pressure exceeds the set value, the relief valve opens, allowing excess hydraulic oil to flow back to the oil tank, protecting the system from damage; the check valve only allows hydraulic oil to flow from the oil tank to the cylinder, preventing hydraulic oil from flowing back when the cylinder descends; the shut-off valve is used to cut off the flow of hydraulic oil in emergency situations, achieving safe descent of the cylinder.

[0010] Specifically, the transition block is provided with an oil inlet port and an oil outlet port at both ends.

[0011] Specifically, the hydraulic circuit includes an oil pump inlet pipe, an oil pump outlet pipe, and a return oil pipe. The inlet end of the oil pump inlet pipe is connected to the oil tank, the outlet end of the oil pump outlet pipe is connected to the oil inlet interface, and the inlet end of the return oil pipe is connected to the oil drain interface.

[0012] The return oil pipe is equipped with a pipe clamp.

[0013] By adopting the above technical solution, the pipe clamp installed on the return oil pipe is used to fix the oil pipe and prevent it from shaking.

[0014] Specifically, an air filter is installed at one end of the top of the oil tank, and a level gauge is installed on one side of the oil tank.

[0015] By adopting the above technical solution, an air filter is used to balance the air pressure inside and outside the oil tank, and can block dust, particles and other impurities in the outside air from entering the oil tank, thereby protecting the hydraulic oil from contamination, maintaining the cleanliness of the hydraulic system and extending the system life. The level gauge can display the current oil level of the hydraulic oil in the tank, helping users to understand the remaining amount of hydraulic oil and the system status in a timely manner.

[0016] The beneficial effects of this utility model are as follows: An integrated hydraulic functional valve group is composed of a transition block, pressure testing connector, throttle valve, relief valve, check valve, shut-off valve, and solenoid valve. Through this integrated hydraulic functional valve group, oil tank, and hydraulic circuit, in conjunction with the client-side motor pump on the electric light truck, the electric lifting hydraulic power unit of the electric light truck can be guaranteed to lift electrically, achieve uniform electric descent, and ensure emergency safe descent in case of system malfunction. The transition block provides an interface for connecting the various hydraulic valve group components; the pressure testing connector is used to measure the working pressure of the hydraulic system; the throttle valve is used to regulate the flow rate of the hydraulic oil, thereby controlling the descent speed of the cylinder; the relief valve... The relief valve is used to set the maximum working pressure of the system. When the pressure exceeds the set value, the relief valve opens, allowing excess hydraulic oil to flow back to the oil tank, protecting the system from damage. The check valve only allows hydraulic oil to flow from the oil tank to the cylinder, preventing hydraulic oil from flowing back when the cylinder is lowered. The shut-off valve is used to cut off the flow of hydraulic oil in an emergency, enabling the cylinder to lower safely. This solves the problem that the check valves, relief valves, normally closed solenoid valves, throttle valves, and shut-off valves in the hydraulic control valve group of the existing electric light truck lifting hydraulic power unit are usually independently distributed, resulting in poor assembly and connection integration, and the complex connection path between the valve group and the hydraulic oil tank, leading to a high risk of leakage. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a front view schematic diagram of the present invention;

[0021] Figure 4 This is a side view of the present invention;

[0022] In the diagram: oil tank 1, oil pump inlet pipe 11, oil pump outlet pipe 12, return oil pipe 13, pipe clamp 131, transition block 2, pressure test connector 21, throttle valve 22, overflow valve 23, check valve 24, shut-off valve 25, solenoid valve 26, oil inlet port 27, oil outlet port 28, air filter 3, level gauge 4. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-4As shown, the electric light truck lifting and steering valve group unit of this utility model includes an oil tank 1, an integrated hydraulic function valve group and a hydraulic oil circuit. The integrated hydraulic function valve group is located on the top of the oil tank 1, and the hydraulic oil circuit is connected to the oil tank 1 and the integrated hydraulic function valve group.

[0025] The integrated hydraulic functional valve group includes a transition block 2, a pressure test connector 21, a throttle valve 22, a relief valve 23, a check valve 24, a shut-off valve 25, and a solenoid valve 26. The transition block 2 is fixedly installed on the top of the oil tank 1.

[0026] In use, the integrated hydraulic functional valve group consists of transition block 2, pressure test connector 21, throttle valve 22, overflow valve 23, check valve 24, shut-off valve 25 and solenoid valve 26. Through the integrated hydraulic functional valve group, oil tank 1 and hydraulic circuit of this application, in conjunction with the client motor pump on the electric light truck, the electric lifting hydraulic power unit of the electric light truck can be guaranteed to lift, achieve uniform electric descent, and ensure emergency safe descent in case of abnormal system operation.

[0027] This utility model also includes that the pressure testing connector 21, the throttle valve 22 and the overflow valve 23 are sequentially arranged on one side of the transition block 2, and the one-way valve 24, the shut-off valve 25 and the solenoid valve 26 are arranged on the other side of the transition block 2.

[0028] In use, the transition block 2 provides an interface for connecting the various hydraulic valve group components. The pressure test connector 21 is used to measure the working pressure of the hydraulic system; the throttle valve 22 is used to regulate the flow of hydraulic oil, thereby controlling the descent speed of the cylinder; the relief valve 23 is used to set the maximum working pressure of the system. When the pressure exceeds the set value, the relief valve opens, allowing excess hydraulic oil to flow back to the oil tank, protecting the system from damage; the check valve 24 only allows hydraulic oil to flow from the oil tank to the cylinder, preventing backflow of hydraulic oil when the cylinder descends; the shut-off valve 25 is used to cut off the flow of hydraulic oil in an emergency, achieving safe descent of the cylinder.

[0029] This utility model also includes that the two ends of the transition block 2 are respectively provided with an oil inlet port 27 and an oil outlet port 28.

[0030] The present invention also includes that the hydraulic circuit includes an oil pump inlet pipe 11, an oil pump outlet pipe 12 and a return oil pipe 13, wherein the inlet end of the oil pump inlet pipe 11 is connected to the oil tank 1, the outlet end of the oil pump outlet pipe 12 is connected to the oil inlet interface 27, and the inlet end of the return oil pipe 13 is connected to the oil outlet interface 28.

[0031] A pipe clamp 131 is installed on the return oil pipe 13.

[0032] When in use, the pipe clamp 131 installed on the return oil pipe 13 is used to fix the oil pipe and prevent it from shaking.

[0033] This utility model also includes an air filter 3 installed at one end of the top of the oil tank 1, and a level gauge 4 installed on one side of the oil tank 1.

[0034] When in use, the air filter 3 can balance the air pressure inside and outside the oil tank 1 and block dust, particles and other impurities in the outside air from entering the oil tank 1, thereby protecting the hydraulic oil from contamination, maintaining the cleanliness of the hydraulic system and extending the system life. The level gauge 4 can display the current oil level of the hydraulic oil in the oil tank 1, helping the user to understand the remaining amount of hydraulic oil and the system status in a timely manner.

[0035] In use, an overflow valve 23 is installed on the oil path of the one-way valve 24 to limit the maximum working pressure of the system and prevent damage to system components due to excessive pressure. Based on the electric pump of the electric light truck client, the oil in the oil tank 1 passes through the one-way valve 24 and the overflow valve 23 before entering the oil inlet of the lifting cylinder of the electric light truck, driving the cylinder to perform lifting operations. The oil return end of the cylinder is connected to the throttle valve 22 through the return oil pipe 13 of the transition block 2, forming a return oil path with the integrated hydraulic functional valve group. The throttle valve 22 is used to regulate the return oil flow and control the descent of the cylinder. To achieve a uniform descent, a normally closed solenoid valve 26 is connected in series with a throttle valve 22 to control the descent of the cylinder. When the solenoid valve is open, oil is allowed to flow back to the oil tank 1 through the throttle valve 22, thus lowering the cylinder. The shut-off valve 25 is connected in parallel with the throttle valve 22 in the return oil path. In an emergency, if the solenoid valve 26 fails or the system pressure rises abnormally, the shut-off valve 25 can quickly close, cutting off the oil flow path and ensuring system safety. At the same time, the oil flows back to the oil tank through the bypass shut-off valve 25 and the throttle valve 22, achieving an emergency safe descent.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A valve assembly unit for lifting and steering an electric light truck, characterized in that, It includes an oil tank (1), an integrated hydraulic functional valve group and a hydraulic oil circuit. The integrated hydraulic functional valve group is located on the top of the oil tank (1), and the hydraulic oil circuit is connected to the oil tank (1) and the integrated hydraulic functional valve group. The integrated hydraulic functional valve group includes a transition block (2), a pressure test connector (21), a throttle valve (22), a relief valve (23), a check valve (24), a shut-off valve (25), and a solenoid valve (26). The transition block (2) is fixedly installed on the top of the oil tank (1). The pressure testing connector (21), throttle valve (22) and overflow valve (23) are sequentially arranged on one side of the transition block (2), and the one-way valve (24), shut-off valve (25) and solenoid valve (26) are arranged on the other side of the transition block (2); The transition block (2) is provided with an oil inlet (27) and an oil outlet (28) at both ends. The hydraulic circuit includes an oil pump inlet pipe (11), an oil pump outlet pipe (12), and a return oil pipe (13). The inlet end of the oil pump inlet pipe (11) is connected to the oil tank (1), the outlet end of the oil pump outlet pipe (12) is connected to the oil inlet interface (27), and the inlet end of the return oil pipe (13) is connected to the oil drain interface (28). A pipe clamp (131) is installed on the return oil pipe (13).

2. The valve group unit for lifting and steering an electric light truck according to claim 1, characterized in that, An air filter (3) is installed at one end of the top of the oil tank (1), and a level gauge (4) is installed on one side of the oil tank (1).

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