Balanced valve group with functions of preventing speed dropping and keeping load

Abstract

The utility model provides a balance valve group with functions of preventing speed dropping and keeping load, and relates to the technical field of valve groups. The balance valve set comprises a rectangular valve body, a balance valve is installed on the right side face of the valve body, a first executing mechanism connector and a second executing mechanism connector are arranged on the top face and the bottom face of the valve body respectively, an oil source port is formed in the front side face of the valve body, and a pilot port is formed in the rear side face of the valve body. The balance valve comprises an oil inlet, an oil outlet and a pilot outer connector. According to the utility model, the balance valve group is mounted in a plate manner, namely, the actuating mechanism interface of the balance valve group is directly and tightly connected with the mounting interface of the oil cylinder, so that the condition of external pipelines is reduced, the condition that the actuating mechanism is out of speed in the operation process due to sudden burst of the external pipelines is effectively prevented, and the service life of the actuating mechanism is prolonged. The function of maintaining the load is realized, and the situation of safety accidents caused by sudden load drop is reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve assembly technology, and in particular to a balanced valve assembly with functions of preventing deceleration and maintaining load. Background Technology

[0002] Existing balancing valves are large and heavy, making them somewhat cumbersome in practical applications, especially in situations with very limited installation space, where they are often unusable. Current installation methods for balancing valve assemblies mostly require external piping to connect to the cylinder or motor, which can easily lead to sudden pipe ruptures under certain conditions, causing the cylinder or motor to stall during operation and resulting in sudden load drops and safety accidents. Utility Model Content

[0003] This utility model addresses the technical problems mentioned in the background section by providing a balance valve assembly that prevents deceleration and maintains load.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a balance valve assembly with anti-disengagement and load-holding functions. The balance valve assembly includes a rectangular valve body, a balance valve is installed on the right side of the valve body, a first actuator interface and a second actuator interface are respectively provided on the top and bottom surfaces of the valve body, an oil source port is provided on the front side of the valve body, and a pilot port is provided on the rear side of the valve body;

[0006] The balance valve includes an oil inlet, an oil outlet, and a pilot external interface. The oil source port is connected to the first actuator interface and the second actuator interface. The first actuator interface is connected to the cylinder mounting port, and the second actuator interface is connected to the motor mounting port. The pilot external interface is connected to a pilot assist device, and the oil outlet is connected to the oil source port.

[0007] Preferably, a one-way valve is connected to the oil source port, and the one-way valve is connected to the first actuator interface and the second actuator interface respectively.

[0008] Preferably, four mounting holes are provided around the first actuator interface and four mounting holes around the second actuator interface, and the mounting holes are through holes.

[0009] Preferably, the balancing valve is a cartridge valve.

[0010] Preferably, the valve body is made of alloy steel.

[0011] The positive and progressive effects of this utility model are as follows: This utility model provides a balance valve assembly with anti-speed-off and load-holding functions. The balance valve assembly of this utility model adopts a plate-type installation, that is, the actuator interface of the balance valve assembly is directly and tightly connected to the mounting interface of the hydraulic cylinder, reducing the need for external pipelines and effectively preventing sudden bursting of external pipelines that could cause the actuator to lose speed during operation. This achieves the function of maintaining the load and reduces the possibility of safety accidents caused by sudden load drops. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the unfolded structure of the valve body of this utility model.

[0013] Figure 2 This is a schematic diagram of the balance valve structure of this utility model.

[0014] Figure 3 This is a schematic diagram illustrating the working principle of the balance valve assembly with anti-speed-off and load-holding functions of this utility model.

[0015] Legend: 1. Valve body; 2. Balance valve; 3. First actuator interface; 4. Second actuator interface; 5. Oil source port; 6. Pilot port; 7. Check valve; 8. Mounting hole; 21. Oil inlet; 22. Oil outlet; 23. Pilot external interface. Detailed Implementation

[0016] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0017] Example 1

[0018] like Figure 1-3 As shown, this embodiment provides a balance valve assembly with anti-slip and load-holding functions. The balance valve assembly includes a rectangular valve body 1, with a balance valve 2 mounted on the right side of the valve body 1. The top and bottom surfaces of the valve body 1 are respectively provided with a first actuator interface 3 and a second actuator interface 4. The front side of the valve body 1 has an oil source port 5, and the rear side has a pilot port 6. The balance valve 2 includes an oil inlet 21, an oil outlet 22, and a pilot external interface 23. The oil source port 5 is connected to the first actuator interface 3 and the second actuator interface 4. The first actuator interface 3 is connected to the cylinder mounting port, and the second actuator interface 4 is connected to the motor mounting port. The pilot external interface 23 is connected to a pilot assist device, and the oil outlet 22 is connected to the oil source port 5. In this embodiment, the balance valve assembly is installed using a plate-type installation, meaning that no additional external piping is required. The second actuator interface 4 is directly and tightly connected to the actuator mounting interface. This installation method effectively prevents sudden pipe bursts and safety accidents caused by sudden load drops.

[0019] A one-way valve 7 is connected to the oil source port, and the one-way valve 7 is connected to the first actuator interface 3 and the second actuator interface 4 respectively.

[0020] The first actuator interface 3 and the second actuator interface 4 are provided with four mounting holes 8 around their perimeters, which are through holes.

[0021] The balancing valve 2 is a cartridge valve; the valve body 1 is made of alloy steel.

[0022] The working principle of this utility model is as follows: Hydraulic oil enters from the oil source port 5, flows freely through the one-way valve 7 into the first actuator interface 3 and the second actuator interface 4, and then into the motor or cylinder, enabling the cylinder or motor to operate normally. At this time, the balance valve 2 is in a normally closed state, that is, the oil inlet 21 and the oil outlet 22 of the balance valve 2 are not connected. The pilot port 6 is preset with pressure. When the pressure of the hydraulic oil entering from the oil source port 5 reaches the preset pressure of the pilot port 6, the balance valve 2 opens, that is, the oil inlet 21 and the oil outlet 22 of the balance valve 2 are connected. At this time, the hydraulic oil flowing into the first actuator interface 3 and the second actuator interface 4 through the one-way valve 7 is unloaded in the reverse direction and flows through the oil inlet 21 to the oil outlet 22 of the balance valve 2 back to the oil source port 1. During this process, the balance valve assembly realizes reverse unloading, which prevents the actuator from decelerating and maintains the load when the equipment stops.

[0023] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A balance valve assembly with anti-disengagement and load-holding functions, characterized in that, The balance valve assembly includes a rectangular valve body, a balance valve is installed on the right side of the valve body, a first actuator interface and a second actuator interface are respectively provided on the top and bottom surfaces of the valve body, an oil source port is provided on the front side of the valve body, and a pilot port is provided on the rear side of the valve body. The balance valve includes an oil inlet, an oil outlet, and a pilot external interface. The oil source port is connected to the first actuator interface and the second actuator interface. The first actuator interface is connected to the cylinder mounting port, and the second actuator interface is connected to the motor mounting port. The pilot external interface is connected to a pilot assist device, and the oil outlet is connected to the oil source port.

2. The balance valve assembly with anti-disengagement and load-holding functions as described in claim 1, characterized in that, A one-way valve is connected to the oil source port, and the one-way valve is connected to the first actuator interface and the second actuator interface respectively.

3. The balance valve assembly with anti-disengagement and load-holding functions as described in claim 2, characterized in that, The first actuator interface and the second actuator interface are provided with four mounting holes around their respective perimeters, which are through holes.

4. The balance valve assembly with anti-disengagement and load-holding functions as described in claim 3, characterized in that, The balancing valve is a cartridge valve.

5. The balance valve assembly with anti-disengagement and load-holding functions as described in claim 4, characterized in that, The valve body is made of alloy steel.

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