CN214946578U - Valve body with exhaust duct and solenoid valve - Google Patents

Valve body with exhaust duct and solenoid valve Download PDF

Info

Publication number
CN214946578U
CN214946578U CN202121410957.5U CN202121410957U CN214946578U CN 214946578 U CN214946578 U CN 214946578U CN 202121410957 U CN202121410957 U CN 202121410957U CN 214946578 U CN214946578 U CN 214946578U
Authority
CN
China
Prior art keywords
sliding
cavity
block
valve seat
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121410957.5U
Other languages
Chinese (zh)
Inventor
蒋王旗
蒋光苗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yalida Technology Co ltd
Original Assignee
Zhejiang Yalida Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Yalida Technology Co ltd filed Critical Zhejiang Yalida Technology Co ltd
Priority to CN202121410957.5U priority Critical patent/CN214946578U/en
Application granted granted Critical
Publication of CN214946578U publication Critical patent/CN214946578U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Details Of Valves (AREA)

Abstract

The application relates to a valve body with an exhaust duct and an electromagnetic valve, comprising a valve seat, wherein a cavity is formed in the valve seat, and the outer side wall of the valve seat is provided with an inlet, an outlet and a pressure reducing port which are communicated with the cavity; a sliding block used for sealing the inlet is connected in the cavity in a sliding manner; and the valve seat is provided with a self-discharging groove communicated with the pressure reducing port. This application has the effect that reduces the solenoid valve to the reliance of cylinder manifold.

Description

Valve body with exhaust duct and solenoid valve
Technical Field
The application relates to the field of electromagnetic valves, in particular to a valve body with an exhaust groove and an electromagnetic valve.
Background
Solenoid valves are electrical components that control the flow of fluid.
Referring to the related art of fig. 1, the electromagnetic valve includes a valve seat 1, a cavity 11 is formed in the valve seat 1, and an inlet 12, an outlet 13 and a pressure reducing port 14 which are communicated with the cavity 11 are formed on the outer side wall of the valve seat 1; a sliding block 2 for sealing the discharge port 13 and the decompression port 14 is connected in the valve seat 1 in a sliding manner; the valve seat 1 is provided with a driving piece 5 for driving the sliding block 2 to move.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the solenoid valve group comprises cylinder manifold and a plurality of miniature solenoid valve of fixing on the cylinder manifold usually, and the gaseous through-hole that passes through on the cylinder manifold of solenoid valve decompression mouth discharges, and the structure is comparatively complicated.
SUMMERY OF THE UTILITY MODEL
In order to reduce the dependence of solenoid valve to the cylinder manifold, this application provides a disk seat and solenoid valve with exhaust duct.
On the one hand, the following technical scheme is adopted to the disk seat with the air discharge duct that this application provided:
a valve seat with an exhaust groove comprises a valve seat, wherein a cavity is formed in the valve seat, and an inlet, an outlet and a pressure reducing opening which are communicated with the cavity are formed in the outer side wall of the valve seat; a sliding block used for sealing the inlet is connected in the cavity in a sliding manner; and the valve seat is provided with a self-discharging groove communicated with the pressure reducing port.
Through adopting above-mentioned technical scheme, when inlet port needs and discharge port intercommunication, the sliding block removes along the direction of keeping away from the inlet port, and partial gas passes through the pressure reduction mouth in the cavity and discharges from arranging the groove in the disk seat for under the condition that does not use the cylinder manifold, the disk seat also can be through arranging the groove from discharging the fluid of pressure reduction mouth exhaust and discharging, has reduced the reliance of disk seat to the cylinder manifold.
Optionally, a connecting assembly is arranged on the sliding block, the sliding block is connected in the valve seat in a sliding manner through the connecting assembly, and the connecting assembly comprises a sliding rod and a return spring for driving the sliding block to move in a direction away from the inlet; one end of the sliding rod is arranged on the sliding block, and the other end of the sliding rod penetrates out of the cavity.
By adopting the technical scheme, when the inlet port and the outlet port are required to be communicated, the driving piece moves along the direction far away from the cavity, the sliding rod which is abutted against the driving piece moves along the direction far away from the inlet port under the action of the reset spring, and partial gas in the cavity is discharged from the valve seat through the pressure reducing port, so that the inlet port is communicated with the outlet port.
Optionally, the sliding block is connected in the cavity in a sliding manner along a direction from the inlet to the pressure reduction port, one end of the sliding block is used for sealing the inlet, and the other end of the sliding block is used for sealing the pressure reduction port.
Through adopting above-mentioned technical scheme, when needs communicate inlet port and discharge port, the driving piece removes along the direction of keeping away from the cavity, the pole that slides inconsistent with the driving piece removes along the direction of keeping away from the inlet port under reset spring's effect, reset spring compresses tightly the sliding block on the decompression mouth, realize that the fluid that reset spring and inlet port got into compresses tightly the sliding block on the decompression mouth together, improve the leakproofness between decompression mouth and the sliding block, the condition that the fluid in the reduction cavity flows out through the decompression mouth takes place.
Optionally, the sliding block includes a sliding ring and a sealing block for sealing the inlet port, the sealing block is disposed in the sliding ring, and the sliding ring is connected in the cavity in a sliding manner in a direction close to or away from the inlet port.
By adopting the technical scheme, the sealing block and the inlet port are sealed during use, the sealing performance between the sliding block and the inlet port is improved, the situation that gas in the inlet port enters the cavity through the inlet port when the valve seat is closed is reduced, and the stability is improved.
Optionally, an installation ring groove is formed in the outer side wall of the valve seat, a first sealing ring is arranged in the installation ring groove, and the installation ring groove surrounds the inlet, the outlet and the pressure reducing port.
By adopting the technical scheme, the sealing performance of the inlet, the outlet and the pressure reducing port in the process of abutting against the object is improved, the occurrence of the leakage of gas between the inlet and the object is reduced, and the occurrence of the leakage of gas between the outlet and the object is reduced.
Optionally, the valve seat is provided with an installation through hole communicated with the cavity; the mounting through hole is internally and detachably provided with a mounting block, the mounting block is provided with a connecting hole, one end of the connecting hole is communicated with the pressure reducing port, and the other end of the connecting hole is communicated with the cavity.
Through adopting above-mentioned technical scheme, when needs are changed the sliding block, operating personnel only need with the installation piece from the installation through-hole in the cunning shift out, realize dismantling the sliding block from the cavity, make things convenient for operating personnel to the change of sliding block.
Optionally, a limiting block is arranged on the inner side wall of the mounting through hole; the mounting block is connected in the mounting through hole in a sliding mode, and the mounting block is abutted to the limiting block.
Through adopting above-mentioned technical scheme, when installing the installation piece in the installation through-hole, slide the installation piece and connect into in the installation through-hole to make the stopper inconsistent with the installation piece, install the driving piece in the installation through-hole afterwards, make the driving piece inconsistent tightly with the installation piece, the realization will be to the installation of installation piece.
Optionally, the installation piece includes limiting plate and locating piece, the limiting plate is inconsistent with the stopper, the locating piece sets up the one end that is close to the cavity at the limiting plate, the locating piece is inconsistent with the stopper, the connecting hole is seted up on the locating piece.
Through adopting above-mentioned technical scheme, when installing the installation piece in the installation through-hole, slide the limiting plate and even insert in the installation through-hole to make limiting plate and stopper inconsistent, the locating piece is inconsistent with the stopper, makes stopper circumference location, and the mouth of reducing pressure aligns with the connecting hole this moment, makes things convenient for the alignment between operating personnel with connecting hole and the mouth of reducing pressure.
Optionally, a sealing ring groove is formed in one end, close to the pressure reducing port, of the mounting block, and a second sealing ring is sleeved on the inner clamping sleeve of the sealing ring groove.
By adopting the technical scheme, the sealing performance between the pressure reducing port and the connecting hole is improved, and the leakage of fluid between the pressure reducing port and the connecting hole is reduced.
In a second aspect, the present application provides an electromagnetic valve that adopts the following technical solution:
a valve seat with an exhaust groove comprises the valve body with the exhaust groove.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the self-discharging groove, the valve seat can discharge fluid discharged from the pressure reducing port through the self-discharging groove under the condition that the bus plate is not arranged, and the dependence of the valve seat on the bus plate is reduced;
2. the mounting block and the limiting block are convenient for an operator to dismount the sliding block from the cavity, so that the operator can conveniently dismount the sliding block;
3. the limiting block, the positioning block and the limiting plate facilitate the alignment of the connecting hole and the pressure reducing port by operators.
Drawings
Fig. 1 is a schematic structural view of the related art.
FIG. 2 is a schematic structural diagram of a valve body with a vent slot according to the present application.
Fig. 3 is a sectional view of fig. 2, showing the internal structure of the valve seat.
Fig. 4 is a schematic view of the structure of the valve seat of fig. 3.
FIG. 5 is a schematic view of the valve seat of FIG. 4 with the mounting block, the sliding block, and the connecting assembly.
Fig. 6 is an enlarged view of a portion a of fig. 3, showing the structure of the sliding block and the connecting assembly.
Fig. 7 is a schematic structural diagram of a solenoid valve according to the present application.
Fig. 8 is a sectional view of fig. 7, showing the structure of the driving member.
Reference numerals: 1. a valve seat; 11. a cavity; 12. an inlet port; 121. a first inlet orifice; 122. a second inlet orifice; 123. a first contact ring; 13. an outlet port; 14. a pressure relief port; 15. self-arranging grooves; 16. mounting a through hole; 17. mounting a ring groove; 18. a first seal ring; 2. a sliding block; 21. a slip ring; 22. a sealing block; 221. a rubber ring; 222. a rubber column; 23. mounting grooves; 3. mounting blocks; 31. a limiting plate; 32. positioning blocks; 321. sealing the ring groove; 322. a second seal ring; 33. a limiting block; 34. connecting holes; 341. a first connection hole; 342. a second connection hole; 35. a second contact ring; 4. a connecting assembly; 41. a slide bar; 42. a return spring; 5. a drive member; 51. a housing; 52. a contact post; 53. penetrating the column; 54. a compression spring; 55. mounting a column; 56. and (4) sliding grooves.
Detailed Description
The present application is described in further detail below with reference to figures 2-8.
The embodiment of the application discloses valve body with air discharge duct. Referring to fig. 2 and 3, a valve body with an exhaust groove comprises a valve seat 1, wherein a cavity 11 is formed in the valve seat 1, an inlet 12, an outlet 13 and a pressure reducing port 14 which are communicated with the cavity 11 are formed in one outer side wall of the valve seat 1, the outlet 13 is positioned between the inlet 12 and the pressure reducing port 14, and a self-exhaust groove 15 communicated with the pressure reducing port 14 is formed in the outer side wall of the valve seat 1, which is provided with the inlet 12; a sliding block 2 for closing the inlet 12 is connected in the cavity 11 in a sliding manner.
In a normal state, the inlet 12 is closed by the sliding block 2; when the sliding block 2 moves in the direction away from the inlet port 12 in use, the inlet port 12 is communicated with the outlet port 13, and the part of fluid in the cavity 11 is discharged from the discharge groove 15 through the pressure reducing port 14, so that the dependence of the valve seat 1 on the confluence plate is reduced.
Referring to fig. 3 and 4, the inlet 12 includes a first inlet hole 121 and a second inlet hole 122, the first inlet hole 121 is opened on the outer side wall of the valve seat 1 opened with the outlet 13; the second inlet hole 122 is opened in the valve seat 1, the second inlet hole 122 is coaxially arranged with the cavity 11, one end of the second inlet hole 122 is communicated with the cavity 11, and the other end of the second inlet hole 122 is communicated with the first inlet hole 121; the inner side wall of the cavity 11 is integrally formed with a first contact ring 123, the first contact ring 123 is coaxially disposed with the second inlet hole 122, and the second inlet hole 122 is surrounded by the contact ring.
Referring to fig. 4 and 5, an installation through hole 16 communicated with the cavity 11 is formed in the outer side wall of the valve seat 1, and the installation through hole 16 is located on one side of the cavity 11 away from the first inlet hole 121; the mounting through hole 16 is connected with a mounting block 3 in a sliding manner, and the mounting block 3 comprises a limiting plate 31 and a positioning block 32; two limiting blocks 33 are integrally formed on the inner side wall of the mounting through hole 16, and a space for the positioning block 32 to slide is formed between the two limiting blocks 33; the limiting plate 31 is connected in the mounting through hole 16 in a sliding manner, the limiting plate 31 is positioned on one side of the limiting block 33, which is far away from the cavity 11, and one side of the limiting plate 31, which is close to the cavity 11, is abutted against the limiting block 33; the positioning block 32 and one end of the limiting plate 31 close to the cavity 11 are integrally formed, and the positioning block 32 is connected between the two limiting blocks 33 in a sliding manner.
Referring to fig. 3 and 5, the positioning block 32 is provided with a connecting hole 34, and the connecting hole 34 includes a first connecting hole 341 and a second connecting hole 342; the first connection hole 341 is opened on the positioning block 32, the first connection hole 341 is parallel to the first access hole 121, and one end of the first connection hole 341 far from the installation through hole 16 is communicated with the pressure relief port 14; the second connecting hole 342 is opened on the positioning block 32, the second connecting hole 342 is coaxially arranged with the second inlet hole 122, one end of the second connecting hole 342 is communicated with the cavity 11, and the other end of the second connecting hole 342 is communicated with the first connecting hole 341; one end of the positioning block 32 close to the cavity 11 is integrally formed with a second contact ring 35, and the second contact ring 35 surrounds the second connection hole 342.
Referring to fig. 3 and 5, a sealing ring groove 321 is formed at one end of the positioning block 32 close to the pressure reducing port 14, the first connection hole 341 is surrounded by the sealing ring groove 321, and a second sealing ring 322 is sleeved in the sealing ring groove 321 in a clamping manner.
When installing installation piece 3 to installation through-hole 16 in, slide limiting plate 31 and locating piece 32 and link into in the installation through-hole 16 for locating piece 32 slides and connects between two stopper 33, and when limiting plate 31 contradicted with stopper 33, second connecting hole 342 aligns with decompression mouth 14, makes things convenient for operating personnel to align second intercommunicating hole and decompression mouth 14.
Referring to fig. 2 and 4, an installation ring groove 17 surrounding the first inlet hole 121, the outlet 13, and the pressure reducing port 14 is formed on the outer side wall of the valve seat 1, and a first sealing ring 18 is fitted into the installation ring groove 17.
Referring to fig. 3 and 6, the sliding block 2 includes a sliding ring 21 and a sealing block 22 for closing the inlet port 12; the sealing block 22 comprises a rubber ring 221 and a rubber column 222; the sliding ring 21 is located between the second inlet hole 122 and the second connecting hole 342, and one end of the sliding ring 21 close to the second inlet hole 122 is provided with an installation groove 23; rubber ring 221 integrated into one piece is on the lateral wall of rubber column 222, and rubber column 222 slides and connects in sliding ring 21, and rubber ring 221 offsets with the tank bottom of mounting groove 23, and rubber column 222 one end is used for offsetting tightly with first abutting ring 123, and the rubber column 222 other end is used for offsetting tightly with second abutting ring 35.
Referring to fig. 5 and 6, a connecting assembly 4 is arranged on the sliding block 2, the sliding block 2 is connected in the cavity 11 in a sliding manner through the connecting assembly 4, and the connecting assembly 4 comprises two sliding rods 41 and a return spring 42; the two sliding rods 41 are integrally formed at one end of the sliding ring 21 close to the positioning block 32, the two sliding rods 41 are uniformly distributed along the circumferential direction of the axis of the sliding ring 21, and the two sliding rods 41 are slidably arranged on the positioning block 32 and penetrate out of the limiting plate 31; one end of the return spring 42 is sleeved on one end of the rubber column 222 close to the second access hole 122 and abuts against the rubber ring 221, and the other end of the return spring 42 is sleeved on the outer side wall of the first abutting ring 123.
In a normal state, the driving member 5 is abutted by the two sliding rods 41 penetrating out of the cavity 11, so that the return spring 42 is in a compressed state, and the rubber column 222 is abutted against the first abutting ring 123; when the sliding block 2 is used, the driving piece 5 moves along the direction far away from the sliding rod 41, the sliding rod 41 is abutted against the second abutting ring 35 under the action of the return spring 42, and fluid between the rubber column 222 and the second abutting ring 35 is discharged from the valve seat 1 through the first connecting hole 341, the second connecting hole 342, the pressure reducing port 14 and the self-discharging groove 15, so that the sliding block 2 slides more smoothly; the fluid entering through the second inlet hole 122, together with the return spring 42, presses the rubber post 222 against the second abutment ring 35, reducing the occurrence of fluid leakage from the second connecting hole 342.
The implementation principle of the valve body with the exhaust groove in the embodiment of the application is as follows: when the valve seat is installed, an operator slides the two sliding rods 41 to penetrate through the positioning block 32, the rubber column 222 is penetrated through the sliding ring 21, one end of the return spring 42 is sleeved at one end, away from the bottom of the installation groove 23, of the rubber column 222, then the limiting plate 31 and the positioning block 32 are slid into the installation through hole 16, the limiting plate 31 and the positioning block 32 are limited in the installation through hole 16 through the two limiting blocks 33, then the driving piece 5 is installed on the valve seat 1, the limiting plate 31 is limited in the installation through hole 16 through the driving piece 5 and the limiting blocks 33, and the sliding ring 21 and the sliding rods 41 are installed into the cavity 11.
When the valve seat is used, the driving piece 5 moves in the direction away from the sliding rod 41, the rubber column 222 seals the second connecting hole 342 under the action of the return spring 42, and fluid between the rubber column 222 and the second connecting hole 342 is discharged from the discharge groove 15, so that the dependence of the valve seat 1 on the collecting plate is reduced.
The embodiment of the application also discloses an electromagnetic valve. Referring to fig. 7 and 8, a solenoid valve includes the valve body and the driver 5; the driving piece 5 comprises a shell 51, an electromagnet, an abutting column 52, a penetrating column 53, a compression spring 54 and a mounting column 55; the mounting column 55 is fixedly connected to one end of the shell 51 close to the valve seat 1, the mounting column 55 is slidably arranged in the mounting through hole 16, and a sliding groove 56 is formed in one end of the mounting column 55 far away from the shell 51; the abutting column 52 is connected in the sliding groove 56 in a sliding manner, and one end of the penetrating column 53 and one end of the abutting column 52 close to the groove bottom of the sliding groove 56 are integrally formed; the hold-down spring 54 is positioned between the contact column 52 and the bottom of the sliding groove 56, one end of the hold-down spring 54 is sleeved on the penetrating column 53 and is abutted against the contact column 52, and the other end of the hold-down spring 54 is abutted against the bottom of the sliding groove 56; the electromagnet is fixedly connected in the housing 51 on the side of the groove base of the sliding groove 56 facing away from the hold-down spring 54.
The implementation principle of the electromagnetic valve in the embodiment of the application is as follows: in a normal state, the pressing spring 54 presses the abutment post 52 against the limit plate 31, so that the rubber post 222 presses against the second access hole 122 and closes the second access hole 122; when the rubber plug is used, the electromagnet is electrified, the electromagnet attracts the contact column 52 to move along the direction close to the bottom of the sliding groove 56, the rubber column 222 moves along the direction close to the second connecting hole 342 under the action of the return spring 42, and the return spring 42 presses the rubber column 222 on the second connecting hole 342, so that the second connecting hole 342 is closed, and the second inlet hole 122 is communicated with the outlet 13.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a valve body with air discharge duct which characterized in that: the valve seat comprises a valve seat (1), wherein a cavity (11) is formed in the valve seat (1), and an inlet (12), an outlet (13) and a pressure reducing port (14) which are communicated with the cavity (11) are formed in the outer side wall of the valve seat (1); a sliding block (2) used for sealing the inlet (12) is connected in the cavity (11) in a sliding manner; the valve seat (1) is provided with a self-discharging groove (15) communicated with the pressure reducing port (14).
2. The valve body with the vent groove of claim 1, wherein: the sliding block (2) is provided with a connecting assembly (4), the sliding block (2) is connected in the valve seat (1) in a sliding mode through the connecting assembly (4), and the connecting assembly (4) comprises a sliding rod (41) and a return spring (42) which is used for driving the sliding block (2) to move in the direction away from the inlet (12); one end of the sliding rod (41) is arranged on the sliding block (2), and the other end of the sliding rod (41) penetrates out of the cavity (11).
3. The valve body with the vent groove of claim 1, wherein: the sliding block (2) is connected in the cavity (11) in a sliding mode along the direction from the inlet port (12) to the pressure reducing port (14), one end of the sliding block (2) is used for sealing the inlet port (12), and the other end of the sliding block (2) is used for sealing the pressure reducing port (14).
4. The valve body with the vent groove of claim 1, wherein: the sliding block (2) comprises a sliding ring (21) and a sealing block (22) used for sealing the inlet (12), the sealing block (22) is arranged in the sliding ring (21), and the sliding ring (21) is connected in the cavity (11) in a sliding mode along the direction close to or far away from the inlet (12).
5. The valve body with the vent groove of claim 1, wherein: the valve seat is characterized in that an installation ring groove (17) is formed in the outer side wall of the valve seat (1), a first sealing ring (18) is arranged in the installation ring groove (17), and the installation ring groove (17) surrounds the inlet (12), the outlet (13) and the pressure reducing port (14).
6. The valve body with the vent groove of claim 1, wherein: the valve seat (1) is provided with an installation through hole (16) communicated with the cavity (11); the vacuum insulation chamber is characterized in that the mounting block (3) is detachably arranged in the mounting through hole (16), a connecting hole (34) is formed in the mounting block (3), one end of the connecting hole (34) is communicated with the pressure reducing port (14), and the other end of the connecting hole (34) is communicated with the chamber body (11).
7. The valve body with the vent groove of claim 6, wherein: a limiting block (33) is arranged on the inner side wall of the mounting through hole (16); the mounting block (3) is connected in the mounting through hole (16) in a sliding mode, and the mounting block (3) is abutted to the limiting block (33).
8. The valve body with the vent groove of claim 7, wherein: the installation piece (3) includes limiting plate (31) and locating piece (32), limiting plate (31) are inconsistent with stopper (33), locating piece (32) set up the one end that is close to cavity (11) at limiting plate (31), locating piece (32) are inconsistent with stopper (33), connecting hole (34) are seted up on locating piece (32).
9. The valve body with the vent groove of claim 6, wherein: the one end that installation piece (3) are close to decompression mouth (14) has seted up sealed annular (321), joint sleeve is equipped with second sealing washer (322) in sealed annular (321).
10. A solenoid valve, characterized by: comprising a valve body with a venting groove according to any one of claims 1 to 9.
CN202121410957.5U 2021-06-23 2021-06-23 Valve body with exhaust duct and solenoid valve Active CN214946578U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121410957.5U CN214946578U (en) 2021-06-23 2021-06-23 Valve body with exhaust duct and solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121410957.5U CN214946578U (en) 2021-06-23 2021-06-23 Valve body with exhaust duct and solenoid valve

Publications (1)

Publication Number Publication Date
CN214946578U true CN214946578U (en) 2021-11-30

Family

ID=79077385

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121410957.5U Active CN214946578U (en) 2021-06-23 2021-06-23 Valve body with exhaust duct and solenoid valve

Country Status (1)

Country Link
CN (1) CN214946578U (en)

Similar Documents

Publication Publication Date Title
CN208605418U (en) A kind of pilot type electromagnetic switch valve
CN214946578U (en) Valve body with exhaust duct and solenoid valve
CN207421373U (en) A kind of axial-flow type quick valve applied to impulse wind tunnel
CN108437964B (en) Air treatment unit assembly for vehicle and four-loop protection valve thereof
CN210566581U (en) Valve with pre-tightening spring and travel switch
CN217951293U (en) Novel membrane plug valve
CN217130419U (en) Backflow preventer with low water loss
CN217301817U (en) Pilot-operated electromagnetic valve
CN109944965A (en) A kind of safety valve mechanism of airborne chemical oxygen-producing device
CN213298933U (en) Filling valve
CN113074256B (en) Electromagnetic valve
CN210770470U (en) Oil gas recovery valve with breathing function
CN210034608U (en) Pilot air pressure electromagnetic valve
CN203098972U (en) Safety valve for electric water heater
CN217815065U (en) Knife switch type normal-low temperature zero-leakage electromagnetic valve
CN215598137U (en) Intelligent air-cooled condensing unit
CN212716799U (en) Cylindrical hydraulic tappet
CN211082966U (en) Low-noise oil-injection-prevention air inlet valve
CN220397271U (en) Gas valve for clip-type furnace
CN217328476U (en) Pneumatic control type liquid medicine valve
CN218624572U (en) Pressure relief device and air pump
CN212832820U (en) Oil gun with self-sealing cover
CN220151959U (en) Air tightness one-way valve
CN212155099U (en) Non-return structure of automobile air conditioner compressor
CN217502589U (en) Valve structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant