CN209800789U

CN209800789U - Reversing valve group for numerical control high-pressure cleaning machine

Info

Publication number: CN209800789U
Application number: CN201920510600.0U
Authority: CN
Inventors: 施建南; 陈斌; 蒋全立
Original assignee: Jiangnan Cnc Machine Tool Co Ltd
Current assignee: Jiangnan Cnc Machine Tool Co Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-17
Anticipated expiration: 2029-04-08

Abstract

The reversing valve group for the numerical control high-pressure cleaning machine comprises two identical reversing valves and a cylinder, wherein two ends of the cylinder are respectively installed with an ejector rod and then respectively provided with a first mirror image bearing cover and a second mirror image bearing cover, the second mirror image bearing cover is provided with the reversing valve, the reversing valve is installed below the first mirror image bearing cover, the two identical reversing valves are mirror images of each other, the reversing valve cover is fixed on the last reversing valve, and the reversing valve base is fixed below the next reversing valve.

Description

Reversing valve group for numerical control high-pressure cleaning machine

Technical Field

The utility model relates to a numerical control high pressure cleaner especially indicates a reversing valve group for numerical control high pressure cleaner.

Background

The numerical control high-pressure cleaning machine is mainly used for cleaning inner cavity and outer surface of mechanical parts, and the numerical control device utilizes high-pressure fluid to flush the parts to remove burrs, stained sand or dirt on the surfaces and the inner parts of the parts. In high pressure cleaners, high pressure reversing valves are an important component. During high-pressure cleaning, the functions of high-pressure jet flow such as distribution, conversion, valve unloading and the like are all completed by the high-pressure reversing valve. High pressure jets typically employ water-based or oil-based fluids. In the operation process, the reversing valve is required to have the characteristics of quick switching, no leakage, corrosion resistance, large drift diameter and the like. At present, no high-pressure reversing valve suitable for a numerical control high-pressure cleaning machine exists in the market.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switching-over valves for numerical control high pressure cleaner.

In order to achieve the above purpose, the utility model adopts the following solution: the reversing valve group for the numerical control high-pressure cleaning machine comprises two identical reversing valves and a cylinder, wherein two ends of the cylinder are respectively installed with an ejector rod and then respectively provided with a first mirror image bearing cover and a second mirror image bearing cover, the second mirror image bearing cover is provided with the reversing valve, the reversing valve is installed below the first mirror image bearing cover, the two identical reversing valves are mirror images of each other, the reversing valve cover is fixed on the last reversing valve, and the reversing valve base is fixed below the next reversing valve.

And a water pipe is inserted into the reversing valve base.

The water pipe end is sent and assembled 90 adapter.

And a third O-shaped sealing ring is embedded into the bottom of the reversing valve cover.

The reversing valve comprises a cylinder body, and a first mandrel, a second mandrel, a third mandrel and a spring are assembled in the cylinder body.

And a second O-shaped sealing ring and a second tetrafluoro check ring are embedded in the outer wall of the second mandrel.

The first mandrel fits into the second mandrel with a tolerance of h 7.

And a first O-shaped sealing ring and two first tetrafluoro check rings are embedded in the third mandrel.

The operating principle of the reversing valve group is briefly described as follows: the reversing valve group is arranged on the water tank, and the water outlet of the plunger pump enters the cylinders of the two reversing valves from the two inlets of the reversing valves. When the last gas port of cylinder was admitted air, the cylinder can drive the ejector pin downstream, and upward the ejector pin can drive the third mandrel and move down, and the spring in the second mandrel will be first mandrel down push down, and the water in the cylinder body can up flow in from the hole above the first mandrel this moment, flows out from the apopore of switching-over valve gap at last. Similarly, when the lower gas port of cylinder admits air, the cylinder can drive down ejector pin downstream, and lower ejector pin can drive third dabber and move up to the axle, and the spring in the second dabber will be first dabber 1 up-thrust, and the hole inflow above the first dabber can be down followed to the water in the cylinder body this moment, flows out from the delivery port of switching-over valve base, flows in the water tank at last.

Compared with the prior art, the reversing valve group has the following positive effects: it is more suitable for a numerical control high-pressure cleaning machine.

Drawings

Fig. 1 is an exploded view of the present embodiment.

Fig. 2 is a schematic sectional view of the present embodiment.

In the figure: 1. the cylinder body, 2, first tetrafluoro retaining ring, 3, first O type sealing washer, 4, first dabber, 5, second dabber, 6, second O type sealing washer, 7, second tetrafluoro retaining ring, 8, switching-over valve base, 9, third O type sealing washer, 10, first mirror image accept lid, 11, switching-over valve gap, 12, second mirror image accept lid, 13, spring, 14, cylinder, 15, ejector pin, 16, third dabber, 17, 90 adapter, 18, water pipe.

Detailed Description

The present invention will be described with reference to the following embodiments and accompanying drawings.

Referring to fig. 1 and 2, a reversing valve group for a numerical control high-pressure cleaning machine comprises two identical reversing valves and an air cylinder 14, wherein two ends of the air cylinder 14 are respectively installed in an ejector rod 15 and then respectively installed with a first mirror image receiving cover 10 and a second mirror image receiving cover 12, the second mirror image receiving cover 12 is installed with a reversing valve, the reversing valve is installed below the first mirror image receiving cover 10, the two identical reversing valves are mirror images of each other, a reversing valve cover 11 is fixed on the last reversing valve, and a reversing valve base 8 is fixed below the next reversing valve.

Referring to fig. 1 and 2, a water pipe 18 is inserted into the reversing valve base 8.

Referring to fig. 1 and 2, the water pipe 18 is terminated with a 90 ° adapter 17.

Referring to fig. 1 and 2, the bottom of the reversing valve cover 11 is embedded with a third O-ring 9.

Referring to fig. 1 and 2, the reversing valve comprises a cylinder body 1, wherein a first mandrel 4, a second mandrel 5, a third mandrel 16 and a spring 13 are assembled in the cylinder body 1.

Referring to fig. 1 and 2, a second O-ring 6 and a second tetrafluoro-collar 7 are embedded in the outer wall of the second mandrel 5.

Referring to fig. 1 and 2, the first mandrel 4 is fitted into the second mandrel 5 with a tolerance of h 7.

Referring to fig. 1 and 2, a first O-ring 3 and two first tetrafluoro-rings 2 are embedded in the third mandrel 16.

Claims

1. The utility model provides a switching-over valves for numerical control high pressure cleaner which characterized by: the novel reversing valve comprises two identical reversing valves and an air cylinder (14), wherein two ends of the air cylinder (14) are respectively installed with a first mirror image bearing cover (10) and a second mirror image bearing cover (12) after being respectively installed with an ejector rod (15), the second mirror image bearing cover (12) is provided with the reversing valves, the first mirror image bearing cover (10) is provided with the reversing valves, the two identical reversing valves are mirror images of each other, a reversing valve cover (11) is fixed on the last reversing valve, and a reversing valve base (8) is fixed on the next reversing valve.

2. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 1, wherein: a water pipe (18) is inserted into the reversing valve base (8).

3. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 2, wherein: and the end of the water pipe (18) is provided with a 90-degree adapter (17).

4. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 1, wherein: and a third O-shaped sealing ring (9) is embedded into the bottom of the reversing valve cover (11).

5. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 1, wherein: the reversing valve comprises a cylinder body (1), wherein a first mandrel (4), a second mandrel (5), a third mandrel (16) and a spring (13) are assembled in the cylinder body (1).

6. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 5, wherein: and a second O-shaped sealing ring (6) and a second tetrafluoro retainer ring (7) are embedded in the outer wall of the second mandrel (5).

7. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 5, wherein: the first mandrel (4) is fitted into the second mandrel (5) with a tolerance of h 7.

8. The reversing valve group for the numerical control high-pressure cleaning machine as claimed in claim 5, wherein: and a first O-shaped sealing ring (3) and two first tetrafluoro check rings (2) are embedded in the third mandrel (16).