CN220227334U

CN220227334U - Stacked double-head overflow valve group

Info

Publication number: CN220227334U
Application number: CN202321311347.9U
Authority: CN
Inventors: 易君
Original assignee: Shanghai Zhongcheng Precision Machinery Co ltd
Current assignee: Shanghai Zhongcheng Precision Machinery Co ltd
Priority date: 2023-05-28
Filing date: 2023-05-28
Publication date: 2023-12-22
Anticipated expiration: 2033-05-28

Abstract

The utility model relates to the technical field of valve groups and discloses a stacked double-head overflow valve group which comprises a valve body, wherein overflow valves are arranged at two ends of the valve body, a plurality of oil ports are arranged on the front surface and the back surface of the valve body, and sealing rings are arranged on the outer surfaces of the oil ports. The stacked double-head overflow valve group provides compact and effective pressure control of the actuator, the stacked overflow valve group omits pipelines and joints between valves, the number of potential leakage points is reduced, and 2 overflow valves respectively control the pressure of two working ports A, B, so that different pressures required by the cavities of the actuator 2 are respectively arranged.

Description

Stacked double-head overflow valve group

Technical Field

The utility model relates to the technical field of overflow valve groups, in particular to a stacked double-head overflow valve group.

Background

The overflow valve is a hydraulic pressure control valve, and mainly plays roles of constant pressure overflow, pressure stabilization, system unloading and safety protection in hydraulic equipment. During assembly or use of the overflow valve, the overflow valve may cause unnecessary external leakage due to damage of the O-shaped sealing ring and the combined sealing ring or loosening of the mounting screw and the pipe joint.

The existing overflow valve is often in a single-head arrangement, more pipelines and joints are needed between the overflow valve and the actuator during use, the number of potential leakage points is more, the pressure of a A, B working port cannot be controlled respectively, and different pressures of the actuator cavity cannot be set respectively.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a stacked double-head overflow valve group, which solves the problems that the existing overflow valve is often arranged in a single head mode, more pipelines and joints are needed between the existing overflow valve and an actuator during use, the number of potential leakage points is more, the pressure of a A, B working port cannot be controlled respectively, and different pressures of an actuator cavity cannot be set respectively.

The utility model provides the following technical scheme: the utility model provides a stack formula double-end overflow valves, includes the valve body, the both ends of valve body are equipped with the overflow valve, the front and the back of valve body all are equipped with a plurality of hydraulic fluid ports, the surface of hydraulic fluid port all is equipped with the sealing washer.

The utility model is further provided with: the front and the back of the valve body are respectively provided with a plurality of through holes, and the number of the through holes is one and the through holes are arranged on the outer surface of the valve body in a rectangular array.

The utility model is further provided with: the number of the oil ports is several, and the oil ports comprise an A port, a B port, a TA port, a TB port and a P port.

The utility model is further provided with: the two groups of oil ports are in one-to-one correspondence, the two overflow valves are a first overflow valve and a second overflow valve respectively, the A port is connected with the first overflow valve, the first overflow valve is connected with the TA port, the B port is connected with the second overflow valve, and the second overflow valve is connected with the TB.

Compared with the prior art, the utility model provides the overlapped double-head overflow valve group, which has the following beneficial effects:

the stacked double-ended relief valve block provides compact, efficient actuator pressure control. The overlapped overflow valve group omits pipelines and joints among valves, reduces the number of potential leakage points, and the 2 overflow valves respectively control the pressure of the A, B two working ports, thereby realizing different pressures required by the cavities of the actuator 2.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic side view of the present utility model;

FIG. 4 is a schematic diagram of a back view structure of the present utility model;

FIG. 5 is a schematic view of the bottom view of the present utility model;

fig. 6 is a schematic diagram of the principle structure of the hydraulic pipeline of the present utility model.

In the figure: 1. a valve body; 2. an overflow valve; 3. an oil port; 4. a seal ring; 5. a through hole; 201. a first overflow valve; 202. and a second relief valve.

Detailed Description

Referring to fig. 1-6, a stacked double-head overflow valve group includes a valve body 1, two ends of the valve body 1 are provided with overflow valves 2, a plurality of oil ports 3 are respectively arranged on the front and back surfaces of the valve body 1, sealing rings 4 are respectively arranged on the outer surfaces of the oil ports 3, the sealing rings play a role in improving the tightness of the device, a plurality of through holes 5 are respectively arranged on the front and back surfaces of the valve body 1, the number of the through holes 5 is 4, the rectangular array is arranged on the outer surface of the valve body 1, the number of the oil ports 3 is 5, each oil port 3 comprises an A port, a B port, a TA port, a TB port and a P port, the 5 oil ports are arranged on the outer surface of the valve body 1 in a Y shape, the two groups of oil ports 3 are in one-to-one correspondence, the two overflow valves 2 are respectively a first overflow valve 201 and a second overflow valve 202, the A port is connected with the TA port, the B port is connected with the second overflow valve 202, and the second overflow valve 202 is connected with the TB port.

In summary, the stacked double-ended relief valve block provides compact, efficient actuator pressure control. The overlapped overflow valve group omits pipelines and joints among valves, reduces the number of potential leakage points, and the 2 overflow valves respectively control the pressure of the A, B two working ports, thereby realizing different pressures required by the cavities of the actuator 2.

Claims

1. The utility model provides a stack double-end overflow valves, includes valve body (1), its characterized in that: the two ends of the valve body (1) are provided with overflow valves (2), the front and the back of the valve body (1) are provided with a plurality of oil ports (3), and the outer surfaces of the oil ports (3) are provided with sealing rings (4).

2. The stacked double-ended overflow valve block of claim 1, wherein: the front and the back of the valve body (1) are respectively provided with a plurality of through holes (5), the number of the through holes (5) is 4, and the through holes are arranged on the outer surface of the valve body (1) in a rectangular array.

3. The stacked double-ended overflow valve block of claim 1, wherein: the number of the oil ports (3) is 5, and the oil ports (3) comprise an A port, a B port, a TA port, a TB port and a P port.

4. A stacked double-ended overflow valve block as claimed in claim 3, wherein: two groups of oil ports (3) are in one-to-one correspondence, two overflow valves (2) are respectively a first overflow valve (201) and a second overflow valve (202), an A port is connected with the first overflow valve (201), the first overflow valve (201) is connected with a TA port, a B port is connected with the second overflow valve (202), and the second overflow valve (202) is connected with a TB.