CN217815065U

CN217815065U - Knife switch type normal-low temperature zero-leakage electromagnetic valve

Info

Publication number: CN217815065U
Application number: CN202220593530.1U
Authority: CN
Inventors: 林杨剑
Original assignee: Taizhou Kangge Gas Technology Co ltd
Current assignee: Taizhou Kangge Gas Technology Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-11-15
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a knife switch type normal-low temperature zero-leakage electromagnetic valve, belonging to the technical field of electromagnetic valves, which comprises a valve casing, a through hole, a knife gate plate, an assembly component, a control component and a sealing component; the knife switch plate is arranged in the valve shell in a sliding mode and controls the through hole in the valve shell to be opened and closed; the assembly components are arranged on the front side and the rear side of the valve shell and are communicated with the through holes in the valve shell. The utility model discloses a solenoid valve passes through seal assembly's setting, and when the valve was closed, it was sealed between tool setting flashboard and valve casing, solved current solenoid valve and sealed through tool flashboard and valve casing butt, there was the condition of leaking, when the valve was opened, can seal the space that is located the through-hole top in the valve casing, avoided the gas or the liquid leakage of through-hole department, got into in the valve casing, the tool setting flashboard produced the influence to reduce the life of this solenoid valve.

Description

Disconnecting link type normal-low temperature zero-leakage electromagnetic valve

Technical Field

The utility model belongs to the technical field of the solenoid valve, more specifically say, relate to a zero leakage solenoid valve of switch formula normal low temperature.

Background

The electromagnetic valve is industrial equipment for controlling fluid through electromagnetic, and belongs to an actuator; there are many kinds of electromagnetic valves, different electromagnetic valves are used at different positions of a control system, and a knife switch type electromagnetic valve is widely used in the fields of mines, medicines, foods, sanitation and the like as one of the electromagnetic valves.

However, in the conventional knife gate type electromagnetic valve, when the valve is closed, the liquid or gas is blocked only by the contact between the knife gate plate and the valve housing, and after a long time use, a medium in the liquid or gas adheres between the valve housing and the knife gate plate, which causes a decrease in sealing performance of the electromagnetic valve and a leakage of the liquid or gas.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a knife switch formula normal low temperature zero leakage solenoid valve that sealing performance is better.

The utility model discloses a knife switch type normal-low temperature zero leakage electromagnetic valve, which comprises a valve shell, a through hole, a knife gate plate, an assembly component, a control component and a sealing component;

the knife switch plate is arranged in the valve shell in a sliding mode and controls the opening and closing of the through hole in the valve shell;

the assembly components are arranged on the front side and the rear side of the valve shell and are communicated with the through hole in the valve shell;

the control assembly is positioned above the valve shell and is detachably connected with the knife gate plate, and the control assembly is started to control the knife gate plate to slide in the valve shell;

the sealing assembly is positioned at the through hole in the valve shell, and the sealing performance of the electromagnetic valve is ensured through the matching between the sealing assembly and the knife switch board.

Preferably, two the assembly subassembly about the central line of valve casing is front and back symmetrical arrangement, the assembly subassembly includes through bolted connection the locating piece of valve casing front side or rear end face, the locating piece is kept away from a side end face of valve casing is equipped with first seal block, first seal block is kept away from a side end face of valve casing is equipped with the second seal block.

Preferably, the first sealing block with the second sealing block with be the setting of dismantling between the locating block, just the second sealing block with be bolted connection between the locating block, the first sealing block with the second sealing block orientation the one end periphery side of valve casing is equipped with the sealing ring respectively in a cover manner.

Preferably, the control assembly includes threaded connection and is in the connecting axle of sword flashboard top, the cover is equipped with the base on the connecting axle, the base is kept away from the cylinder has been arranged to the one end of sword flashboard, a side end face of cylinder is equipped with the solenoid valve, the solenoid valve with the intercommunication has two trachea between the cylinder.

Preferably, the valve casing with the sword flashboard has still been arranged by supreme first sealed pad and the sealed pad of second of having arranged in proper order down, sealed pad of second is kept away from the one end of first sealed pad is equipped with the end cover.

Preferably, the outer peripheral side of the end cover is further provided with a partition plate wrapping the control assembly.

Preferably, seal assembly is including arranging two sealing washer in the through-hole, two arc walls have still been seted up in the valve casing, the arc wall with the through-hole is linked together, every arc wall sliding connection has with two the dog of sealing washer butt, the butt groove has been seted up respectively to the both sides around the sword flashboard, every butt inslot sliding connection has the butt board.

Preferably, a first spring is connected between the abutting plate and the abutting groove, and a second spring is connected between the stop block and the arc-shaped groove.

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

1. through the mode of installing two sealing washers additional in the through-hole department of valve casing, when having improved the knife gate and closing the through-hole, the sealed effect between knife gate and valve casing has effectively solved current knife gate formula solenoid valve and has only sealed through knife gate and valve casing butt, has the condition of leaking.

2. Through the installation of arc wall and dog in the valve casing, when the through-hole was opened to the switch board, the dog can be followed the interior roll-off of arc wall, carries out the check to two sealing washers of through-hole department and keeps off, guarantees the stability of sealing washer in the installation of through-hole department.

3. Because the setting of both sides butt groove and butt joint board around the knife gate board, when the knife gate board closed the through-hole, the butt joint board can be followed the butt inslot roll-off, extrudees two sealing washer of through-hole department, has improved the stability of sealing washer in the installation of through-hole department on the one hand, and on the other hand is through the mode of increase extrusion force, has further improved the sealed effect between two sealing washer pair knife gate boards and valve casing.

4. When the through-hole is opened to the sword flashboard, the space that lies in the through-hole top in the valve casing is sealed the isolation to the inner wall contact of butt joint board and valve casing, avoids the gas or the liquid leakage of through-hole department, gets into the top of through-hole in the valve casing, and the tool setting flashboard produces the influence to reduce the life of this solenoid valve.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front sectional view of the present invention shown in fig. 1.

Fig. 3 isbase:Sub>A cross-sectional view taken along the directionbase:Sub>A-base:Sub>A in fig. 1 according to the present invention.

Fig. 4 is a partially enlarged schematic view of the point B in fig. 3 according to the present invention.

Fig. 5 is a partially enlarged view of C in fig. 3 according to the present invention.

The reference numbers in the figures illustrate:

10. a valve housing; 11. a through hole; 12. an arc-shaped slot; 13. a stopper; 14. a seal ring; 15. a knife gate plate; 16. positioning a block; 17. a first seal block; 18. a second seal block; 20. a connecting shaft; 21. a partition plate; 22. a base; 23. a cylinder; 24. an electromagnetic valve; 25. an air pipe; 26. a butt joint groove; 27. abutting against the plate; 28. a first seal gasket; 29. a second gasket; 30. and (6) end covers.

Detailed Description

The first embodiment is as follows: please refer to fig. 1-5 for a knife-switch type normal-low temperature zero-leakage electromagnetic valve, which includes a valve housing 10, a through hole 11, a knife-switch plate 15, an assembly component, a control component and a sealing component, wherein the knife-switch plate 15 is slidably disposed in the valve housing 10, the number of the assembly component is two, the two assembly components are disposed on the front and back sides of the valve housing 10 and communicated with the through hole 11, the control component is detachably disposed above the knife-switch plate 15, the sealing component is disposed in the through hole 11, the sealing component is matched with the knife-switch plate 15 to ensure high sealing performance of the electromagnetic valve, and the control component drives the knife-switch plate 15 to slide in the valve housing 10 to open and close the through hole 11;

the assembling assembly comprises a positioning block 16, a first sealing block 17 and a second sealing block 18, wherein the positioning block 16 is connected to the front side or the rear side end face of the valve casing 10 through a bolt, the first sealing block 17 is positioned on the end face of one side of the positioning block 16 far away from the valve casing 10, and the second sealing block 18 is positioned on the end face of one side of the first sealing block 17 far away from the valve casing 10;

further, two assembly subassemblies are the symmetry setting about the central line of valve casing 10, are between first sealed piece and second sealed piece 18 and locating piece 16 and can dismantle the setting, and be bolted connection between second sealed piece 18 and locating piece 16, and first sealed piece 17 and second sealed piece 18 all overlap and are equipped with the sealing ring towards the periphery side of valve casing one end.

The control assembly comprises a connecting shaft 20, a base 22, a cylinder 23, an electromagnetic valve 24 and an air pipe 25; the connecting shaft 20 is connected above the knife gate plate 15 through a bolt, one end, away from the knife gate plate 15, of the connecting shaft 20 is provided with a base 22 and an air cylinder 23 from bottom to top, an electromagnetic valve 24 is located on one side end face of the air cylinder 23, the air pipe 25 is used for communicating the air cylinder 23 with the electromagnetic valve 24, and power is provided for sliding of the knife gate plate 15 in the valve shell 10 through arrangement of the electromagnetic valve 24 and the air cylinder 23 of the control assembly;

further, the valve housing assembly further comprises a first packing 28, a second packing 29, an end cap 30 and a partition 21; the first sealing gasket 28 is located between the valve housing 10 and the disconnecting link plate 15, the second sealing gasket 29 is located at one end, facing the base 22, of the first sealing gasket 28, the end cover 30 is located at one end, facing the base 22, of the second sealing gasket 29, the end cover 30 is in threaded connection with the valve housing 10, the partition plate 21 is located on the outer peripheral side of the control assembly, and the partition plate 21 is in threaded connection with the base 22 and the end cover 30.

The sealing assembly comprises two sealing rings 14, an arc-shaped groove 12, a stop block 13, a butt joint groove 26 and a butt joint plate 27; the two sealing rings 14 are positioned at the through hole 11 in the valve shell 10, the two sealing rings 14 are symmetrically arranged about the central line of the valve shell 10, the arc-shaped groove 12 is formed in the valve shell 10 and communicated with the through hole 11, the stop block 13 is slidably arranged in the arc-shaped groove 12 and positioned between the two sealing rings 14, a second spring is slidably arranged between the stop block 13 and the arc-shaped groove 12, the abutting grooves 26 are respectively formed in the front side and the rear side of the knife gate plate 15, the abutting plate 27 is slidably arranged in the abutting groove 26, and the second spring is connected between the abutting plate 27 and the abutting groove 26;

by additionally arranging the two sealing rings 14 at the through hole 11 of the valve shell 10, the sealing effect between the knife gate plate 15 and the valve shell 10 is improved when the knife gate plate 15 closes the through hole 11, and the problem that the existing knife gate type electromagnetic valve is only sealed by abutting the knife gate plate and the valve shell and has leakage is effectively solved;

further, by installing the arc-shaped groove 12 and the stopper 13 in the valve housing 10, when the through hole 11 is opened by the knife switch plate 15, the stopper 13 can slide out of the arc-shaped groove 12 to block the two sealing rings 14 at the through hole 11, so as to ensure the stability of the installation of the sealing rings 14 at the through hole 11;

due to the arrangement of the abutting grooves 26 and the abutting plates 27 on the front side and the rear side of the knife gate plate 15, when the knife gate plate 15 closes the through hole 11, the abutting plates 27 can slide out of the abutting grooves 26 to extrude the two sealing rings at the through hole 11, so that on one hand, the stability of the installation of the sealing rings 14 at the through hole is improved, and on the other hand, the sealing effect between the knife gate plate 15 and the valve shell 10 by the two sealing rings 14 is further improved in a mode of increasing the extruding force;

further, when the knife gate 15 opens the through hole 11, the abutting plate 27 contacts with the inner wall of the valve housing 10, seals and isolates the space above the through hole 11 in the valve housing 10, avoids the gas or liquid leakage of the through hole 11, enters the upper part of the through hole in the valve housing 10, and influences the knife gate 15, thereby reducing the service life of the electromagnetic valve.

It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a knife switch formula normal low temperature zero leakage solenoid valve which characterized in that: comprises a valve shell (10), a through hole (11), a knife switch plate (15), an assembly component, a control component and a sealing component;

the knife-cutting plate (15) is arranged in the valve casing (10) in a sliding mode, and the knife-cutting plate (15) controls the opening and closing of the through hole (11) in the valve casing (10);

the assembly components are arranged on the front side and the rear side of the valve casing (10) and are communicated with the through holes (11) on the valve casing (10);

the control assembly is positioned above the valve casing (10) and is detachably connected with the knife-cutting plate (15), and the control assembly is started to control the sliding of the knife-cutting plate (15) in the valve casing;

the sealing assembly is located in the valve casing (10) through hole (11), and the sealing performance of the electromagnetic valve is guaranteed through the cooperation between the sealing assembly and the knife gate plate (15).

2. The disconnecting link type normal-low temperature zero-leakage electromagnetic valve according to claim 1, characterized in that: two the assembly subassembly about the central line of valve casing (10) is front and back symmetrical arrangement, the assembly subassembly includes through bolted connection in locating piece (16) of valve casing front side or rear end face, keep away from locating piece (16) a side end face of valve casing (10) is equipped with first sealed piece (17), keep away from first sealed piece (17) a side end face of valve casing (10) is equipped with second sealed piece (18).

3. The disconnecting link type normal-low temperature zero-leakage electromagnetic valve according to claim 2, characterized in that: first sealed piece (17) with second sealed piece (18) with be between locating piece (16) and dismantle the setting, just second sealed piece (18) with be bolted connection between locating piece (16), first sealed piece (17) with second sealed piece (18) orientation the one end periphery side of valve casing (10) is equipped with the sealing ring respectively.

4. The disconnecting link type normal-low temperature zero-leakage electromagnetic valve according to claim 1, characterized in that: control assembly includes threaded connection connecting axle (20) above sword flashboard (15), the cover is equipped with base (22) on connecting axle (20), base (22) are kept away from cylinder (23) have been arranged to the one end of sword flashboard (15), a side end face of cylinder (23) is equipped with solenoid valve (24), solenoid valve (24) with the intercommunication has two trachea (25) between cylinder (23).

5. The disconnecting link type normal-low temperature zero-leakage electromagnetic valve according to claim 4, characterized in that: valve casing (10) with the sealed pad (29) of first sealed pad (28) and second have still been arranged by supreme arranging in proper order down in cutter ram board (15), the sealed pad (29) of second is kept away from the one end of first sealed pad (28) is equipped with end cover (30), the periphery side of end cover (30) has still been arranged right control assembly carries out baffle (21) that wrap up.

6. The disconnecting link type normal-low temperature zero-leakage electromagnetic valve according to claim 1, characterized in that: seal assembly is including arranging two sealing washer (14) in through-hole (11), two arc wall (12) have still been seted up in valve casing (10), arc wall (12) with through-hole (11) are linked together, every arc wall (12) sliding connection have with two dog (13) of sealing washer (14) butt, butt groove (26), every have been seted up respectively to the front and back both sides of sword flashboard (15) sliding connection has butt plate (27) in butt groove (26).

7. The disconnecting link type normal-low temperature zero-leakage electromagnetic valve according to claim 6, characterized in that: a first spring is connected between the abutting plate (27) and the abutting groove (26), and a second spring is connected between the stop block (13) and the arc-shaped groove (12).