CN217328604U - Modular medium switching type shuttle valve group - Google Patents

Abstract

The utility model provides a modularization medium switches formula shuttle valve group belongs to pneumatic shuttle valve technical field. The pneumatic shuttle valve comprises a shuttle valve group, wherein the shuttle valve group comprises a plurality of pneumatic shuttle valves, a piston shaft with a medium channel is vertically arranged in each pneumatic shuttle valve, a pneumatic driving assembly capable of driving the piston shaft to axially move is further arranged on each pneumatic shuttle valve, and a valve structure connected with the piston shaft is arranged at the top of each pneumatic shuttle valve. The pneumatic shuttle valves are connected with pipelines for transmitting different media through valve structures respectively, the pneumatic driving assembly can drive the piston shaft to act so that the media in the pipelines can flow into the media channel in the piston shaft and then enter the fluid channel through the media channel to be output, the media output in the fluid channel can be switched by switching the actions of the pneumatic driving assemblies in different pneumatic shuttle valves, the pneumatic shuttle valves can be combined through the quick mounting structure, and the fluid channels of the two pneumatic shuttle valves can be aligned.

Description

Modular medium switching type shuttle valve group

Technical Field

The utility model belongs to the technical field of pneumatic shuttle valve, a modularization medium switches formula shuttle valves is related to.

Background

As the pneumatic valve, there is generally provided: a body provided with a fluid passage; a housing disposed above the main body; a valve body for opening and closing the fluid passage; a valve rod which moves the valve body to the opening or closing direction by ascending or descending; the single pneumatic valve can only control the output of one medium, and can not rapidly switch and output different media.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a pneumatic valve is disclosed in a chinese patent application No.: 89203040.2], comprising cylinder, piston rod, piston, sealing element, cylinder cover, valve cover and valve body, wherein the cylinder cover is connected with the valve cover by screw thread and is supported by jackscrew.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a modularization medium switching formula shuttle valves.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a modularized medium switching type shuttle valve group comprises a shuttle valve group, the shuttle valve group comprises a plurality of pneumatic shuttle valves, piston shafts with medium channels are vertically arranged in the pneumatic shuttle valves, pneumatic driving assemblies capable of driving the piston shafts to axially move are further arranged on the pneumatic shuttle valves, valve structures connected with the piston shafts are arranged at the tops of the pneumatic shuttle valves, fluid channels connected with the medium channels in the piston shafts are horizontally arranged at the bottoms of the pneumatic shuttle valves, and quick mounting structures used for connecting the two pneumatic shuttle valves are arranged on two sides of each fluid channel.

In the modular medium switching type shuttle valve set, the quick mounting structure comprises an inner connecting plate and an outer connecting plate which are arranged on two sides of the pneumatic shuttle valve, bolt holes are correspondingly formed in two sides of the inner connecting plate and two sides of the outer connecting plate, a connecting groove which is inwards sunken and has a circular cross section is formed in the inner connecting plate, and an annular connecting plate which can be inserted into the connecting groove is formed in the outer connecting plate.

In the modular medium switching shuttle valve set, the outer wall of the annular connecting plate and the inner wall of the connecting groove abut against each other, and a first sealing ring is arranged at the connecting part of the annular connecting plate and the connecting groove.

In the modularized medium switching type shuttle valve group, liquid inlet and outlet pipes with annular connecting plates at the inner ends and side valve covers with connecting grooves at the inner ends are further arranged on two sides of the shuttle valve group, the liquid inlet and outlet pipes are connected with inner connecting plates on pneumatic shuttle valves on the outermost sides in the shuttle valve group, and the side valve covers are connected with outer connecting plates on pneumatic shuttle valves on the outermost sides in the shuttle valve group.

In the modular medium switching shuttle valve group, the valve structure comprises an upper valve cover arranged at the top of the pneumatic shuttle valve, a liquid inlet and outlet hole is arranged in the upper valve cover, a valve core is arranged at the bottom of the liquid inlet and outlet hole, and the valve core is connected with a medium channel in the piston shaft through a sealing connection structure.

In the above-mentioned modular medium switching type shuttle valve group, the pneumatic driving assembly comprises a pneumatic cavity arranged in the pneumatic shuttle valve, the piston shaft is vertically arranged in the pneumatic cavity, the bottom of the piston shaft penetrates through the pneumatic cavity and is connected with the fluid channel, the pneumatic cavity is slidably connected with a piston plate, the piston plate is fixedly sleeved on the piston shaft, the outer side wall of the piston shaft is connected with the inner wall of the pneumatic cavity, an air inlet hole and an air outlet hole are formed in the side part of the pneumatic shuttle valve, the air inlet hole and the air outlet hole are respectively located on two sides of the piston plate, and a spring driving assembly is further arranged in the pneumatic cavity.

In the above modular medium switching shuttle valve set, the spring driving assembly includes a compression spring sleeved on the piston shaft, and the top of the compression spring abuts against the lower end surface of the piston plate.

In the modular medium switching shuttle valve set, the sealing connection structure comprises a sealing plug fixed at the top of the pneumatic cavity, the side part of the sealing plug is abutted against the inner wall of the pneumatic cavity, a liquid inlet and outlet cavity connected with the bottom of the liquid inlet and outlet hole is arranged at the top of the sealing plug, and the top of the piston shaft penetrates through the sealing plug and is connected with the liquid inlet and outlet cavity.

In the modular medium switching shuttle valve set, a second sealing ring is arranged at the joint of the piston plate and the pneumatic cavity.

In the modular medium switching shuttle valve set, two third sealing rings are respectively arranged at the joints of the sealing plug, the piston shaft and the pneumatic cavity.

Compared with the prior art, the utility model has the advantages of:

1. the pneumatic shuttle valves are connected with pipelines for transmitting different media through valve structures respectively, the pneumatic driving assembly can drive the piston shaft to act so that the media in the pipelines can flow into the media channel in the piston shaft and then enter the fluid channel through the media channel to be output, the media output in the fluid channel can be switched by switching the actions of the pneumatic driving assemblies in different pneumatic shuttle valves, the pneumatic shuttle valves can be combined through the quick mounting structure, and the fluid channels of the two pneumatic shuttle valves can be aligned.

2. Two pneumatic shuttle valves accessible internal connection board and external plate sealing connection fix through at the downthehole construction bolt of bolt, and the annular connecting plate on the external plate inserts and can improve two fluid passage's sealing performance to the spread groove on the internal connection board.

3. The medium in the pipeline can enter the medium channel through the liquid inlet and outlet hole, the valve core can open or close the bottom of the liquid inlet and outlet hole, and the sealing connection structure can seal the pneumatic shuttle valve and the liquid inlet and outlet hole, so that the medium can enter the medium channel and can not enter the pneumatic shuttle valve.

4. The piston plate can be driven by air pressure to move towards the direction away from the valve core after air is introduced into the air inlet, the piston plate can drive the piston to move towards the direction away from the valve core, when the piston moves towards the direction away from the valve core, the valve core is opened, media in the liquid inlet and outlet holes can flow into the media channel in the piston shaft, when the air inlet stops air inlet, the compression spring is matched with the piston plate to drive the piston to move towards the direction close to the valve core, when the piston moves towards the direction close to the valve core, the valve core is closed, and the media in the liquid inlet and outlet holes stop inputting the media into the media channel.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a three-dimensional view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a three-dimensional view of a pneumatic shuttle valve;

fig. 4 is a schematic cross-sectional view of a pneumatic shuttle valve.

In the figure: the pneumatic shuttle valve comprises a shuttle valve group 1, a pneumatic shuttle valve 2, a medium channel 3, a piston shaft 4, a pneumatic driving assembly 5, a valve structure 6, a fluid channel 7, a quick mounting structure 8, an internal connecting plate 9, an external connecting plate 10, a bolt hole 11, a connecting groove 12, an annular connecting plate 13, a first sealing ring 14, a liquid inlet and outlet pipe 15, a side valve cover 16, an upper valve cover 17, a liquid inlet and outlet hole 18, a valve core 19, a sealing connecting structure 20, a pneumatic cavity 21, a piston plate 22, an air inlet 23, an exhaust hole 24, a spring driving assembly 25, a compression spring 26, a sealing plug 27, a liquid inlet and outlet cavity 28, a second sealing ring 29 and a third sealing ring 30.

Detailed Description

As shown in fig. 1 to 4, a modular media switching type shuttle valve set comprises a shuttle valve set 1, the shuttle valve set 1 comprises a plurality of pneumatic shuttle valves 2, a piston shaft 4 with a media channel 3 is vertically arranged in the pneumatic shuttle valves 2, a pneumatic driving assembly 5 capable of driving the piston shaft 4 to axially move is further arranged on the pneumatic shuttle valves 2, a valve structure 6 connected with the piston shaft 4 is arranged at the top of each pneumatic shuttle valve 2, a fluid channel 7 connected with the media channel 3 in the piston shaft 4 is horizontally arranged at the bottom of each pneumatic shuttle valve 2, and quick mounting structures 8 for connecting the two pneumatic shuttle valves 2 are arranged on two sides of the fluid channel 7.

In this embodiment, a plurality of pneumatic shuttle valves are respectively connected with pipelines for transmitting different media through valve structures, the pneumatic driving assembly can drive the piston shaft to act so as to enable the media in the pipelines to flow into the media channel in the piston shaft, and then the media flow enters the fluid channel through the media channel to be output, the media output in the fluid channel can be switched by switching the actions of the pneumatic driving assemblies in different pneumatic shuttle valves, the quick mounting structure can combine the pneumatic shuttle valves, and the fluid channels of the two pneumatic shuttle valves can be aligned.

Specifically, as shown in fig. 1 to 4, the quick mounting structure 8 includes an inner connecting plate 9 and an outer connecting plate 10 disposed at two sides of the pneumatic shuttle valve 2, bolt holes 11 are correspondingly disposed at two sides of the inner connecting plate 9 and the outer connecting plate 10, a connecting groove 12 which is recessed inwards and has a circular cross section is disposed in the inner connecting plate 9, and an annular connecting plate 13 which can be inserted into the connecting groove 12 is disposed in the outer connecting plate 10. Two pneumatic shuttle valves accessible internal connection board and external plate sealing connection and fix through installing the bolt in the bolt hole, and annular connecting plate on the external connection board 10 inserts can improve two fluid passage's sealing performance to the spread groove on the internal connection board.

Specifically, as shown in fig. 1 to 4, the outer wall of the annular connecting plate 13 abuts against the inner wall of the connecting groove 12, and a first sealing ring 14 is arranged at the joint of the annular connecting plate 13 and the connecting groove 12. The sealing performance of annular connecting plate and spread groove junction can further be improved to No. one sealing washer.

Specifically, as shown in fig. 1-4, the shuttle valve group 1 is further provided with a liquid inlet and outlet pipe 15 having an annular connecting plate 13 at the inner end and a side valve cover 16 having a connecting groove 12 at the inner end at both sides, the liquid inlet and outlet pipe 15 is connected with an inner connecting plate 9 on the outermost pneumatic shuttle valve 2 in the shuttle valve group 1, and the side valve cover 16 is connected with an outer connecting plate 10 on the outermost pneumatic shuttle valve 2 in the shuttle valve group 1. The side valve cover can seal one side of a fluid channel formed by combining the shuttle valve group, and the liquid inlet and outlet pipe can be conveniently connected with a pipeline externally.

Specifically, as shown in fig. 1 to 4, the valve structure 6 includes an upper valve cover 17 disposed on the top of the pneumatic shuttle valve 2, a liquid inlet and outlet hole 18 is disposed in the upper valve cover 17, a valve core 19 is disposed at the bottom of the liquid inlet and outlet hole 18, and the valve core 19 is connected to the medium passage 3 in the piston shaft 4 through a sealing connection structure 20. The medium in the pipeline can enter the medium channel through the liquid inlet and outlet hole, the bottom of the liquid inlet and outlet hole can be opened or closed by the valve core, and the pneumatic shuttle valve and the liquid inlet and outlet hole can be sealed by the sealing connection structure 20, so that the medium can enter the medium channel and can not enter the pneumatic shuttle valve.

Specifically, as shown in fig. 1 to 4, the pneumatic driving assembly 5 includes a pneumatic cavity 21 disposed in the pneumatic shuttle valve 2, the piston shaft 4 is vertically disposed in the pneumatic cavity 21, the bottom of the piston shaft 4 penetrates through the pneumatic cavity 21 and is connected to the fluid channel 7, a piston plate 22 is slidably connected to the pneumatic cavity 21, the piston plate 22 is fixedly sleeved on the piston shaft 4, the outer side wall of the piston plate is connected to the inner wall of the pneumatic cavity 21, an air inlet 23 and an air outlet 24 are disposed on the side of the pneumatic shuttle valve 2, the air inlet 23 and the air outlet 24 are respectively disposed on two sides of the piston plate 22, and a spring driving assembly 25 is further disposed in the pneumatic cavity 21. The spring driving assembly 25 comprises a compression spring 26 sleeved on the piston shaft 4, and the top of the compression spring 26 abuts against the lower end face of the piston plate 22. The piston plate can be driven by air pressure to move towards the direction away from the valve core after air is introduced into the air inlet, the piston plate can drive the piston to move towards the direction away from the valve core, when the piston moves towards the direction away from the valve core, the valve core is opened, media in the liquid inlet and outlet holes can flow into the media channel in the piston shaft, when the air inlet stops air inlet, the compression spring is matched with the piston plate to drive the piston to move towards the direction close to the valve core, when the piston moves towards the direction close to the valve core, the valve core is closed, and the media in the liquid inlet and outlet holes stop inputting the media into the media channel.

Specifically, as shown in fig. 1 to 4, the sealing connection structure 20 includes a sealing plug 27 fixed on the top of the pneumatic chamber 21, the side of the sealing plug 27 abuts against the inner wall of the pneumatic chamber 21, the top of the sealing plug 27 is provided with a liquid inlet and outlet chamber 28 connected with the bottom of the liquid inlet and outlet hole 18, and the top of the piston shaft 4 penetrates through the sealing plug 27 and is connected with the liquid inlet and outlet chamber 28. The sealing plug can seal the pneumatic cavity and the liquid inlet and outlet cavity, so that a medium in the liquid inlet and outlet cavity can be prevented from entering the pneumatic cavity.

Preferably, as shown in fig. 1-4, a second sealing ring 29 is provided at the junction of the piston plate 22 and the pneumatic chamber 21. The second sealing ring can improve the sealing performance of the joint of the piston plate and the pneumatic cavity.

Preferably, as shown in fig. 1 to 4, two third sealing rings 30 are respectively provided at the joints of the sealing plug 27, the piston shaft 4 and the pneumatic cavity 21. The third sealing ring can improve the sealing performance of the joint of the sealing plug 27, the piston shaft 4 and the pneumatic cavity 21.

The utility model discloses a theory of operation is: the pneumatic shuttle valves are respectively connected with pipelines for transmitting different media through valve structures, the pneumatic driving assembly can drive the piston shaft to act so as to enable the media in the pipelines to flow into a media channel in the piston shaft and then enter a fluid channel through the media channel for output, the media output in the fluid channel can be switched by switching the actions of the pneumatic driving assemblies in different pneumatic shuttle valves, the pneumatic shuttle valves can be combined through the quick mounting structure, and the fluid channels of the two pneumatic shuttle valves can be aligned;

two pneumatic shuttle valves can be connected with an external connection plate in a sealing way through an internal connection plate and fixed through installing bolts in bolt holes, an annular connection plate on the external connection plate 10 is inserted into a connection groove on the internal connection plate to improve the sealing performance of two fluid channels, a first sealing ring can further improve the sealing performance of the connection part of the annular connection plate and the connection groove, a side valve cover can seal one side of the fluid channel formed by combination in a shuttle valve group, a liquid inlet pipe and a liquid outlet pipe can facilitate an external pipeline, a medium in the pipeline can enter a medium channel through a liquid inlet and outlet hole, a valve core can open or close the bottom of the liquid inlet and outlet hole, a sealing connection structure 20 can seal the pneumatic shuttle valves and the liquid inlet and outlet hole, so that the medium can enter the medium channel and cannot enter the pneumatic shuttle valves, after gas is introduced into the gas inlet hole, the piston plate can be driven by air pressure to move towards the direction far away from the valve core, and the piston plate can drive the piston to move axially far away from the valve core, when the piston moves in the direction away from the valve core in the axial direction, the valve core is opened, the medium in the liquid inlet and outlet hole can flow into the medium channel in the piston shaft, when the air inlet hole stops air inlet, the compression spring is matched with the piston plate to drive the piston to move in the direction close to the valve core in the axial direction, and when the piston moves in the direction close to the valve core in the axial direction, the valve core is closed, and the medium in the liquid inlet and outlet hole stops inputting the medium into the medium channel;

the sealing plug can seal the pneumatic cavity and the liquid inlet and outlet cavity, so that a medium in the liquid inlet and outlet cavity can be prevented from entering the pneumatic cavity, the sealing performance of the joint of the piston plate and the pneumatic cavity can be improved by the second sealing ring, and the sealing performance of the joint of the sealing plug 27, the piston shaft 4 and the pneumatic cavity 21 can be improved by the third sealing ring.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the shuttle valve group 1, the pneumatic shuttle valve 2, the medium passage 3, the piston shaft 4, the pneumatic driving assembly 5, the valve structure 6, the fluid passage 7, the quick mounting structure 8, the inner connecting plate 9, the outer connecting plate 10, the bolt hole 11, the connecting groove 12, the annular connecting plate 13, the first sealing ring 14, the liquid inlet and outlet pipe 15, the side valve cover 16, the upper valve cover 17, the liquid inlet and outlet hole 18, the valve core 19, the sealing connecting structure 20, the pneumatic cavity 21, the piston plate 22, the air inlet hole 23, the air outlet hole 24, the spring driving assembly 25, the compression spring 26, the sealing plug 27, the liquid inlet and outlet cavity 28, the second sealing ring 29, the third sealing ring 30, etc. are used more frequently, these terms are merely used to more conveniently describe and explain the essence of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.

Claims (10)

1. The modularized medium switching type shuttle valve group comprises a shuttle valve group (1) and is characterized in that the shuttle valve group (1) comprises a plurality of pneumatic shuttle valves (2), piston shafts (4) with medium channels (3) are vertically arranged in the pneumatic shuttle valves (2), pneumatic driving assemblies (5) capable of driving the piston shafts (4) to axially move are further arranged on the pneumatic shuttle valves (2), valve structures (6) connected with the piston shafts (4) are arranged at the tops of the pneumatic shuttle valves (2), fluid channels (7) connected with the medium channels (3) in the piston shafts (4) are horizontally arranged at the bottoms of the pneumatic shuttle valves (2), and quick mounting structures (8) used for connecting the two pneumatic shuttle valves (2) are arranged on two sides of the fluid channels (7).

2. The modular medium switching shuttle valve group according to claim 1, wherein the quick mounting structure (8) comprises an inner connecting plate (9) and an outer connecting plate (10) which are arranged at two sides of the pneumatic shuttle valve (2), bolt holes (11) are correspondingly arranged at two sides of the inner connecting plate (9) and the outer connecting plate (10), a connecting groove (12) which is concave inwards and has a circular cross section is arranged in the inner connecting plate (9), and an annular connecting plate (13) which can be inserted into the connecting groove (12) is arranged in the outer connecting plate (10).

3. The modular media switching shuttle valve set according to claim 2, wherein the outer wall of the annular connecting plate (13) and the inner wall of the connecting groove (12) abut against each other and a sealing ring (14) is provided at the joint of the annular connecting plate (13) and the connecting groove (12).

4. The modular media switching shuttle valve group according to claim 3, characterized in that, both sides of the shuttle valve group (1) are further provided with a liquid inlet and outlet pipe (15) with an inner end provided with an annular connecting plate (13) and a side valve cover (16) with an inner end provided with a connecting groove (12), the liquid inlet and outlet pipe (15) is connected with an inner connecting plate (9) on the pneumatic shuttle valve (2) on the outermost side in the shuttle valve group (1), and the side valve cover (16) is connected with an outer connecting plate (10) on the pneumatic shuttle valve (2) on the outermost side in the shuttle valve group (1).

5. A modular media switching shuttle valve group according to any of the claims from 1 to 4, characterised in that the valve structure (6) comprises an upper valve cap (17) arranged at the top of the pneumatic shuttle valve (2), a liquid inlet and outlet hole (18) is arranged in the upper valve cap (17), a valve core (19) is arranged at the bottom of the liquid inlet and outlet hole (18), and the valve core (19) is connected with the media channel (3) in the piston shaft (4) through a sealing connection structure (20).

6. The modular medium switching type shuttle valve group according to claim 5, wherein the pneumatic driving assembly (5) comprises a pneumatic cavity (21) arranged in the pneumatic shuttle valve (2), the piston shaft (4) is vertically arranged in the pneumatic cavity (21), the bottom of the piston shaft (4) penetrates through the pneumatic cavity (21) and is connected with the fluid channel (7), a piston plate (22) is connected in the pneumatic cavity (21) in a sliding mode, the piston plate (22) is fixedly sleeved on the piston shaft (4), the outer side wall of the piston plate is connected with the inner wall of the pneumatic cavity (21), an air inlet hole (23) and an air outlet hole (24) are formed in the side portion of the pneumatic shuttle valve (2), the air inlet hole (23) and the air outlet hole (24) are respectively located on two sides of the piston plate (22), and a spring driving assembly (25) is further arranged in the pneumatic cavity (21).

7. The modular media switching shuttle valve set according to claim 6, wherein the spring driven assembly (25) comprises a compression spring (26) fitted over the piston shaft (4), the top of the compression spring (26) abutting the lower end surface of the piston plate (22).

8. The modular media switching shuttle valve set according to claim 6, wherein the sealing connection structure (20) comprises a sealing plug (27) fixed on the top of the pneumatic cavity (21), the side of the sealing plug (27) abuts against the inner wall of the pneumatic cavity (21), the top of the sealing plug (27) is provided with a liquid inlet and outlet cavity (28) connected with the bottom of the liquid inlet and outlet hole (18), and the top of the piston shaft (4) penetrates through the sealing plug (27) and is connected with the liquid inlet and outlet cavity (28).

9. Modular valve group according to claim 6, characterized in that the connection between the piston plate (22) and the pneumatic chamber (21) is provided with a second sealing ring (29).

10. Modular valve group according to claim 8, characterized in that the joints of the sealing plug (27) and the piston shaft (4) and the pneumatic chamber (21) are provided with two three-size sealing rings (30), respectively.

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