CN214248407U - Plug-in type check valve - Google Patents
Plug-in type check valve Download PDFInfo
- Publication number
- CN214248407U CN214248407U CN202022400797.8U CN202022400797U CN214248407U CN 214248407 U CN214248407 U CN 214248407U CN 202022400797 U CN202022400797 U CN 202022400797U CN 214248407 U CN214248407 U CN 214248407U
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- seat
- spring
- valve body
- 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
Links
Images
Abstract
The utility model provides a plug-in mounting type check valve, which comprises a valve body, a valve core and an adjusting mechanism; a cavity is arranged in the valve body; a valve seat is arranged in the bottom of the valve body, an air inlet cavity is arranged in the valve seat, an air outlet is arranged on the side surface of the valve body, and the air inlet cavity and the air outlet are respectively communicated with the cavity; the valve core is arranged in the cavity and can move in the cavity in a telescopic way; the bottom of the valve core is provided with a valve clack; a throttling channel is formed between the valve clack and the top of the valve seat; the adjusting mechanism is arranged at the top of the valve body and extends into the cavity to be butted on the valve core; the adjusting mechanism can push the valve core to move in the cavity in a telescopic way, so that the opening degree of the throttling channel is adjusted; the utility model provides a scheme, simple structure, practicality can effectively carry out the throttle pressure release to gas to stable output.
Description
Technical Field
The utility model belongs to the technical field of cartridge formula check valve, concretely relates to cartridge formula check valve.
Background
In the existing engineering application field, the used gas is often required to be converted into corresponding pressure and then output, so that the purpose of use is achieved; the existing check valve has a relatively complex structure, the pressure of output gas is not stable enough, and the stable adjustment can not be carried out.
Based on the technical problems existing in the structure of the check valve, no relevant solution exists; there is therefore a pressing need to find effective solutions to the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the weak point that exists among the above-mentioned technique, provide a cartridge formula check valve, aim at solving one of the problems of current gas throttling, pressure release.
The utility model provides a plug-in mounting type check valve, which comprises a valve body, a valve core and an adjusting mechanism; a cavity is arranged in the valve body; a valve seat is arranged in the bottom of the valve body, an air inlet cavity a is arranged in the valve seat, an air outlet b is arranged on the side face of the valve body, and the air inlet cavity a and the air outlet b are respectively communicated with the cavity; the valve core is arranged in the cavity and can move in the cavity in a telescopic way; the bottom of the valve core is provided with a valve clack; a throttling channel d is formed between the valve clack and the top of the valve seat; the adjusting mechanism is arranged at the top of the valve body and extends into the cavity to be butted on the valve core; the adjusting mechanism can push the valve core to move in the cavity in a telescopic mode, and therefore the opening degree of the throttling channel d is adjusted.
Furthermore, a rubber ring is arranged at the top of the valve seat, and a throttling channel d is formed between the valve clack and the rubber ring; the air outlet b is communicated with the cavity after throttling of the throttling channel d.
Furthermore, a balance cavity c is arranged in the valve core, and the balance cavity c is communicated with the cavity throttled by the throttling channel d through a balance cavity air inlet e.
Furthermore, the adjusting mechanism comprises a valve rod, and the valve rod extends into the cavity and can move in the cavity in a telescopic mode; a spring assembly is arranged in the balance cavity c; one end of the spring assembly is abutted to the bottom of the balance cavity c, and the other end of the spring assembly is abutted to the valve rod of the adjusting mechanism, so that the valve core can move in a telescopic mode in the cavity through the valve rod.
Further, the spring assembly comprises an upper spring seat, a lower spring seat and a valve core spring; the adjusting mechanism also comprises an adjusting sleeve, and a through cavity is arranged in the adjusting sleeve; the adjusting sleeve is fixed on the top of the valve body and extends into the cavity, so that the through cavity is coaxially communicated with the balance cavity c; the lower spring seat is arranged in the balance cavity c, and the upper spring seat is arranged in the through cavity; one end of the valve core spring is sleeved on the boss at the bottom of the upper spring seat, and the other end of the valve core spring is sleeved on the boss at the top of the lower spring seat.
Furthermore, the valve rod penetrates through the adjusting sleeve and extends into the through cavity, and is in threaded connection with the adjusting sleeve; and the outer side of the valve rod is sleeved with a locking nut.
Further, a sealing ring is arranged between the valve seat and the inner wall of the valve body; and/or a sealing ring is arranged on the outer wall of the valve body.
The utility model provides a scheme, simple structure, practicality can effectively carry out the throttle pressure release to gas to stable output.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a first schematic structural view of a cartridge check valve of the present invention;
FIG. 2 is a schematic structural view of a cartridge check valve of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged view of a portion B of fig. 2.
In the figure: 1. a valve body; 2. a valve core; 21. a valve flap; 3. a spool spring; 4. a spring lower seat; 5. a spring upper seat; 6. a rubber ring; 7. a valve seat; 8. an adjusting sleeve; 9. a valve stem; 10. locking the nut; 11. a seal ring; a. an air inlet cavity; b. an air outlet; c. a balancing chamber; d. a throttling channel; e. the balance cavity is provided with an air inlet.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, the present invention provides a cartridge check valve, which is an integral cartridge structure and can be installed in an integrated valve block by a screw connection; specifically, the check valve specifically comprises a valve body 1, a valve core 2 and an adjusting mechanism; wherein, a cavity is arranged in the valve body 1 and is used for installing the valve core 2 and the spring assembly; a valve seat 7 is arranged in the bottom of the valve body 1, and an air inlet cavity a is arranged in the valve seat 7 and is used for being connected with an air inlet; the side surface of the valve body 1 is provided with an air outlet b, and the air inlet cavity a and the air outlet b are respectively communicated with the cavity; specifically, the valve core 2 is arranged in the cavity and can move in the cavity in a telescopic way; the bottom of the valve core 2 is provided with a valve clack 21, specifically, the bottom of the valve core 2 protrudes to form the valve clack 21, the valve clacks 21 on the two sides of the valve core 2 can slide along the two side walls of the cavity, and form a throttling channel d with the top of the valve seat 7, namely, a throttling channel d is formed between the valve clack 21 and the top of the valve seat 7, and the throttling channel d is used for adjusting the pressure of gas; furthermore, the adjusting mechanism is arranged at the top of the valve body 1 and extends into the cavity to be butted on the valve core 2; the adjusting mechanism can push the valve core 2 to stretch and move in the cavity, so that the opening degree of the throttling channel d is adjusted; the utility model provides a cartridge formula check valve has opening pressure can dynamic adjustment, reverse non return function, through rotating adjustment mechanism, adjustable opening pressure to realize the pressure release.
Preferably, in combination with the above solution, as shown in fig. 1 to 4, the top of the valve seat 7 is provided with a rubber ring 6, so that a throttling channel d is formed between the valve flap 21 and the rubber ring 6; the gas outlet b is communicated with the cavity throttled by the throttling channel d, so that throttled gas can enter the gas outlet b through the throttling channel d; specifically, the valve seat 7 is a metal piece; by adopting the scheme, the rubber ring on the valve seat is attached to the valve clack in a sealing manner, the metal surface on the valve seat is attached to the sealing surface of the valve clack in a pressed manner, and the valve seat has a high-pressure and low-pressure double-sealing effect.
Preferably, with the above scheme, as shown in fig. 1 to 4, a balance cavity c is arranged in the valve core 2, and the balance cavity c is communicated with a cavity throttled by the throttling channel d through a balance cavity air inlet e; the design is like this for gas after the throttle can get into gas outlet b and balanced chamber c respectively through throttle passageway d, and wherein the gas that gets into in the balanced chamber c has reverse non return function, plays balanced effect.
Preferably, in combination with the above solution, as shown in fig. 1 to 4, the adjusting mechanism includes a valve rod 9, and the valve rod 9 extends into the cavity and can move telescopically in the cavity; a spring assembly is arranged in the balance cavity c; one end of the spring assembly abuts against the bottom of the balance cavity c, the other end of the spring assembly abuts against a valve rod 9 of the adjusting mechanism, and the valve core 2 can stretch and move in the cavity through the valve rod 9; by adopting the scheme, the opening pressure of the check valve can be dynamically adjusted through the spring assembly, and the check valve has a reverse check function.
Preferably, in combination with the above solution, as shown in fig. 1 to 4, the spring assembly includes an upper spring seat 5, a lower spring seat 4, and a spool spring 3; the adjusting mechanism also comprises an adjusting sleeve 8, and a through cavity is arranged in the adjusting sleeve 8; the adjusting sleeve 8 is fixed on the top of the valve body 1 and extends into the cavity, so that the through cavity is coaxially communicated with the balance cavity c; the lower spring seat 4 is arranged in the balance cavity c, and the upper spring seat 5 is arranged in the through cavity; one end of the valve core spring 3 is sleeved on a boss at the bottom of the upper spring seat 5, and the other end of the valve core spring 3 is sleeved on a boss at the top of the lower spring seat 4; by adopting the scheme, the balance function can be achieved.
Preferably, in combination with the above solution, as shown in fig. 1 to 4, the valve rod 9 extends into the through cavity through the adjusting sleeve 8 and is in threaded connection with the adjusting sleeve 8; the outer side of the valve rod 9 is sleeved with a locking nut 10, namely the length of the valve rod 9 extending into the through cavity is adjusted by rotating the valve rod, and then the maximum opening of the extrusion valve core is adjusted; the design is that the check valve has the functions of dynamically adjusting the opening pressure and reversely checking, the opening pressure can be adjusted by rotating the valve rod, the opening pressure of the check valve can be adjusted by the adjusting screw rod, and the opening pressure is locked by the locking nut.
Preferably, in combination with the above scheme, as shown in fig. 1 to 4, a sealing ring 11 is arranged between the valve seat 7 and the inner wall of the valve body 1, so as to improve the sealing effect; further, the outer wall of the valve body 1 is provided with a sealing ring 11, so that the valve body 1 is conveniently and hermetically arranged in the integrated valve block.
The utility model provides a scheme, simple structure, practicality can effectively carry out the throttle pressure release to gas to stable output.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.
Claims (7)
1. A cartridge check valve is characterized by comprising a valve body (1), a valve core (2) and an adjusting mechanism; a cavity is arranged in the valve body (1); a valve seat (7) is arranged in the bottom of the valve body (1), an air inlet cavity (a) is arranged in the valve seat (7), an air outlet (b) is arranged on the side surface of the valve body (1), and the air inlet cavity (a) and the air outlet (b) are respectively communicated with the cavity; the valve core (2) is arranged in the cavity and can move in the cavity in a telescopic way; the bottom of the valve core (2) is provided with a valve clack (21); a throttling channel (d) is formed between the valve clack (21) and the top of the valve seat (7); the adjusting mechanism is arranged at the top of the valve body (1) and extends into the cavity to be butted on the valve core (2); the adjusting mechanism can push the valve core (2) to move in the cavity in a telescopic mode, and therefore the opening degree of the throttling channel (d) is adjusted.
2. A cartridge check valve according to claim 1, wherein a rubber ring (6) is arranged on the top of the valve seat (7), and the throttle channel (d) is formed between the valve flap (21) and the rubber ring (6); and the air outlet (b) is communicated with the cavity throttled by the throttling channel (d).
3. A cartridge check valve according to claim 1 or 2, wherein a balance chamber (c) is provided in the valve core (2), and the balance chamber (c) is communicated with the throttled chamber of the throttling channel (d) through a balance chamber inlet (e).
4. A cartridge check valve according to claim 3, wherein the adjustment mechanism comprises a valve stem (9), the valve stem (9) extending into the cavity and being telescopically movable within the cavity; a spring assembly is arranged in the balance cavity (c); one end of the spring assembly abuts against the bottom of the balance cavity (c), the other end of the spring assembly abuts against a valve rod (9) of the adjusting mechanism, and the valve core (2) can move in a cavity in a telescopic mode through the valve rod (9).
5. A cartridge check valve according to claim 4, characterized in that the spring assembly comprises an upper spring seat (5), a lower spring seat (4) and a poppet spring (3); the adjusting mechanism further comprises an adjusting sleeve (8), and a through cavity is formed in the adjusting sleeve (8); the adjusting sleeve (8) is fixed at the top of the valve body (1) and extends into the cavity, so that the through cavity is coaxially communicated with the balance cavity (c); the lower spring seat (4) is arranged in the balance cavity (c), and the upper spring seat (5) is arranged in the through cavity; one end of the valve core spring (3) is sleeved on a boss at the bottom of the spring upper seat (5), and the other end of the valve core spring (3) is sleeved on a boss at the top of the spring lower seat (4).
6. A cartridge check valve according to claim 5, characterized in that the valve rod (9) extends through the adjusting sleeve (8) into the through-cavity and is in threaded connection with the adjusting sleeve (8); and a locking nut (10) is sleeved on the outer side of the valve rod (9).
7. A cartridge check valve according to claim 1, characterized in that a sealing ring (11) is arranged between the valve seat (7) and the inner wall of the valve body (1); and/or a sealing ring (11) is arranged on the outer wall of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022400797.8U CN214248407U (en) | 2020-10-26 | 2020-10-26 | Plug-in type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022400797.8U CN214248407U (en) | 2020-10-26 | 2020-10-26 | Plug-in type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214248407U true CN214248407U (en) | 2021-09-21 |
Family
ID=77730433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022400797.8U Active CN214248407U (en) | 2020-10-26 | 2020-10-26 | Plug-in type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214248407U (en) |
-
2020
- 2020-10-26 CN CN202022400797.8U patent/CN214248407U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100170583A1 (en) | Fluid Control Valve | |
| US8453807B2 (en) | Hydraulic damper device for retarding movement of a movable member toward a stationary member | |
| CN214248407U (en) | Plug-in type check valve | |
| CN103615582B (en) | Reducing valve | |
| CN206190993U (en) | Off -load formula pressure reducer | |
| US20050166970A1 (en) | Low pressure drop check valve | |
| CN105351570B (en) | A kind of two-position two-way solenoid valve | |
| CN214008187U (en) | Plug-in type relief valve | |
| US9207687B2 (en) | Low noise relief valve | |
| CN211288566U (en) | One-way air damper | |
| CN213236212U (en) | Multi-stage pressure reducing valve | |
| CN214008082U (en) | Plug-in type stop valve | |
| CN207316177U (en) | A kind of integrated form valve body | |
| CN201779320U (en) | Novel gas reducing valve | |
| CN214008172U (en) | Back pressure valve | |
| CN202302164U (en) | Piston type air pressure regulating and reducing valve | |
| CN219119944U (en) | Gas pressure reducing valve with protective structure | |
| CN108131476B (en) | Air valve | |
| CN220002674U (en) | Breathing machine air-vent valve and breathing machine | |
| CN214248423U (en) | Helium pressure reducing valve | |
| CN205446731U (en) | Highly -compressed air choke valve | |
| CN113357432B (en) | High-precision easy-to-adjust silencing balance valve | |
| CN202844302U (en) | Differential pressure type pneumatic valve | |
| CN213840482U (en) | Adjustable air valve for air bottle | |
| CN220204790U (en) | Unidirectional self-adjusting expansion valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315000 Xiyang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Patentee after: Star Arrow Technology Co.,Ltd. Address before: Xiyang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Patentee before: NINGBO XINGJIAN SPACE MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address |