CN214008082U - Plug-in type stop valve - Google Patents
Plug-in type stop valve Download PDFInfo
- Publication number
- CN214008082U CN214008082U CN202022402312.9U CN202022402312U CN214008082U CN 214008082 U CN214008082 U CN 214008082U CN 202022402312 U CN202022402312 U CN 202022402312U CN 214008082 U CN214008082 U CN 214008082U
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- valve core
- valve rod
- sealing block
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000009423 ventilation Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Valve Housings (AREA)
Abstract
The utility model provides a plug-in type stop valve, which comprises a valve body, a valve core spring and a valve rod adjusting component; a cavity is arranged in the valve body, a sealing block is arranged at the bottom of the valve body, an air inlet is arranged in the sealing block, an air outlet is formed in the side wall of the valve body, and the air inlet and the air outlet are respectively communicated with the cavity; the valve core is arranged in the cavity in a telescopic manner and can be abutted against the sealing block; a throttling channel is formed between the valve core and the sealing block; the valve core spring is arranged in the cavity and positioned at the top of the valve core; the valve rod adjusting assembly is arranged at the top of the valve body and extends into the cavity to be abutted against the valve core, so that the opening degree of the throttling channel is adjusted; the plug-in type stop valve provided by the utility model has compact and simple structure, can be installed in an integrated valve block, achieves the functions of cutting off and circulating media, and has better throttling effect; simultaneously the utility model provides a dynamic balance can be realized to cartridge formula stop valve to make output gas's pressure comparatively stable.
Description
Technical Field
The utility model belongs to the technical field of the stop valve, concretely relates to cartridge formula stop valve.
Background
In the existing engineering application field, the used gas is often required to be throttled into corresponding pressure and then output, so that the purpose of use is achieved; the existing stop valve has a relatively complex structure, the pressure of output gas is not stable enough, and effective balanced throttling can not be carried out.
Based on the technical problems in the structure of the stop valve, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.
Disclosure of Invention
The utility model aims at the weak point that exists among the above-mentioned technique, provide a cartridge formula stop valve, aim at current gas balance throttle's problem.
The utility model provides a plug-in type stop valve, which comprises a valve body, a valve core spring and a valve rod adjusting component; a cavity is arranged in the valve body, a sealing block is arranged at the bottom of the valve body, an air inlet is arranged in the sealing block, an air outlet is formed in the side wall of the valve body, and the air inlet and the air outlet are respectively communicated with the cavity; the valve core is arranged in the cavity in a telescopic manner and can be abutted against the sealing block; a throttling channel is formed between the valve core and the sealing block; the valve core spring is arranged in the cavity and positioned at the top of the valve core; the valve rod adjusting assembly is arranged at the top of the valve body and extends into the cavity to be abutted against the valve core, so that the opening degree of the throttling channel is adjusted.
Further, an outlet cavity a is formed at the bottom of the cavity, and the air outlet is communicated with the outlet cavity a; a balance cavity b is formed at the top of the cavity, and the valve core spring is arranged in the balance cavity b; one end of the valve core spring is abutted against the top wall of the cavity, and the other end of the valve core spring is abutted against the valve core.
Furthermore, a ventilation channel is arranged in the valve core, one end of the ventilation channel is communicated with the air inlet, and the other end of the ventilation channel is communicated with the balance cavity b.
Further, the valve rod adjusting assembly comprises a hand wheel, a valve sleeve and a valve rod, and the valve sleeve is fixedly arranged at the top of the valve body; the valve rod penetrates through the valve sleeve and can be abutted against the valve core, and the valve rod is in threaded connection with the valve sleeve; the hand wheel is fixedly arranged on the outer side of the valve rod and can drive the valve rod to rotate.
Furthermore, scales are arranged on the outer wall surface of the valve rod and used for displaying the opening size of the opening of the throttling channel; a sealing ring is arranged between the valve rod and the valve sleeve.
Furthermore, the valve rod adjusting assembly also comprises a valve rod, the valve rod is arranged in the cavity, one end of the valve rod is connected to the bottom of the valve rod, and the other end of the valve rod is abutted against the top surface of the valve core; the valve core spring is sleeved on the valve post.
Furthermore, the valve rod adjusting assembly also comprises an insert which is fixedly arranged in the cavity; the valve column penetrates through the insert and abuts against the top surface of the valve core, and the valve column can slide on the insert; and a sealing ring is arranged between the valve column and the insert block.
Furthermore, a throttling surface is arranged on the sealing block; a metal ring is arranged on the throttling surface; the bottom of the valve core is provided with a valve clack, and a throttling channel is formed between the valve clack and the metal ring.
Furthermore, a throttling surface is formed on the valve clack, both an inclined surface on the valve clack and the throttling surface on the sealing block are inclined surfaces, and both the inclined surfaces are metal surfaces.
The plug-in type stop valve provided by the utility model has compact and simple structure, can be installed in an integrated valve block, achieves the functions of cutting off and circulating media, and has better throttling effect; simultaneously the utility model provides a dynamic balance can be realized to cartridge formula stop valve to make output gas's pressure comparatively stable.
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 plug-in type stop valve of the present invention;
FIG. 2 is a schematic structural view of a plug-in type stop valve of the present invention;
FIG. 3 is a schematic view of the operation state of the plug-in type stop valve of the present invention;
FIG. 4 is a partial schematic view of a plug-in type stop valve according to the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 2;
FIG. 6 is an enlarged view of portion B of FIG. 2;
fig. 7 is an enlarged view of a portion C of fig. 2.
In the figure: 1. a valve body; 11. an air inlet; 12. an air outlet; 13. a throttling channel; 2. a valve core; 21. a ventilation channel; 22. a vent passage; 23. a spool; 24. a valve flap; 3. a sealing block; 4. a spool spring; 5. a hand wheel; 6. a valve housing; 7. a valve stem; 71. calibration; 8. an insert; 9. a seal ring; 10. a metal ring; a. an outlet chamber; b. a balancing chamber.
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 7, the present invention provides a plug-in type stop valve, which is an integral plug-in type structure and is installed in an integrated valve block through a threaded connection; specifically, the stop valve comprises a valve body 1, a valve core 2, a valve core spring 4 and a valve rod adjusting assembly; a cavity is arranged in the valve body 1, a sealing block 3 is arranged at the bottom of the valve body 1, an air inlet 11 is arranged in the sealing block 3, an air outlet 12 is formed on the side wall of the valve body 1, and the air inlet 11 and the air outlet 12 are respectively communicated with the cavity; the valve core 2 is arranged in the cavity in a telescopic way and can be abutted against the sealing block 3; a throttling channel 13 is formed between the valve core 2 and the sealing block 3; the valve core spring 4 is arranged in the cavity and is positioned at the top of the valve core 2; specifically, the valve rod adjusting assembly is arranged at the top of the valve body 1, and the valve rod 7 of the valve rod adjusting assembly extends into the cavity and abuts against the valve core 2, so that the opening size of the throttling channel 13 is adjusted, the effect of cutting off and circulating media is achieved by rotating the valve rod adjusting assembly, and the throttling effect is good.
Preferably, in combination with the above solution, as shown in fig. 1 to 7, an outlet chamber a is formed at the bottom of the cavity, and the air outlet 12 is communicated with the outlet chamber a; a balance cavity b is formed at the top of the cavity, and the valve core spring 4 is arranged in the balance cavity b; one end of the valve core spring 4 is abutted against the top wall of the cavity, and the other end of the valve core spring 4 is abutted against the valve core 2; by adopting the scheme, the torque is operated by opening and closing the hand wheel in the valve rod adjusting assembly, and the hand wheel torque only needs to overcome the spring force of the valve core spring 4; specifically, when the valve core 2 is in an open or closed state, the inlet pressure enters the balance cavity b through the ventilation channel 21 in the valve core 2, and the axial force of the inlet pressure on the valve core 2 is completely counteracted; when the valve core 2 is in a sealed closed state, if the internal thread of the valve rod adjusting assembly is loosened, the axial pressing force of the thread disappears, and the valve core 2 can also achieve a sealing effect under the action of the check spring force of the valve core spring 4.
Preferably, in combination with the above solution, as shown in fig. 1 to 7, a ventilation channel 21 is provided in the valve core 2, one end of the ventilation channel 21 is communicated with the air inlet 11, the other end of the ventilation channel 21 is communicated with the balance cavity b, and the inlet pressure can enter the balance cavity through a small hole in the valve flap to completely counteract the axial force of the inlet pressure on the valve flap; specifically, as shown in fig. 3, the cavity in the shutoff valve has a full balanced cavity structure (i.e., balanced cavity b), and the area of the intake port D1 = the area of the cavity D2 = (the area of the spool D3 — the area of the balanced cavity b D4), i.e., the area of the circular ring.
Preferably, in combination with the above solution, as shown in fig. 1 to 7, the valve stem adjusting assembly specifically includes a handwheel 5, a valve sleeve 6 and a valve stem 7, wherein the valve sleeve 6 is fixedly disposed at the top of the valve body 1; the valve rod 7 penetrates through the valve sleeve 6 and can be abutted against the valve core 2, and the valve rod 7 is in threaded connection with the valve sleeve 6, so that the valve rod can move in a telescopic manner in the cavity and further extrude the valve core 2 to regulate pressure and balance; further, the hand wheel 5 is fixedly arranged on the outer side of the valve rod 7 and can drive the valve rod 7 to rotate.
Preferably, with reference to the above scheme, as shown in fig. 1 to 7, the scale 71 is arranged on the outer wall surface of the valve rod 7, the scale 71 is used for displaying the opening size of the opening of the throttling channel 13, the valve rod is provided with an opening display, and the valve rod is driven by rotating the hand wheel to display the opening height of the valve flap; a sealing ring 9 is arranged between the valve rod 7 and the valve sleeve 6.
Preferably, with the above solution, as shown in fig. 1 to 7, the valve rod adjusting assembly further includes a valve rod 23, the valve rod 23 is disposed in the cavity, one end of the valve rod 23 is connected to the bottom of the valve rod 7, and the other end of the valve rod 23 abuts against the top surface of the valve core 2; the spool spring 4 is fitted to the spool 23.
Preferably, in combination with the above solution, as shown in fig. 1 to 7, the valve stem adjusting assembly further includes an insert 8, and the insert 8 is fixedly disposed in the cavity; the valve column 23 is abutted on the top surface of the valve core 2 through the insert 8, and the valve column 23 can slide on the insert 8; a sealing ring is arranged between the valve column 23 and the insert 8.
Preferably, in combination with the above solutions, as shown in fig. 1 to 7, the sealing block 3 is provided with a throttling surface; a metal ring 10 is arranged on the throttling surface; the bottom of the valve core 2 is provided with a valve clack 24, and a throttling channel 13 is formed between the valve clack 24 and the metal ring 10; when the valve clack 24 is in an opening or closing state, the inlet pressure enters the balance cavity b through the air-permeable passage 21 and the air-permeable pore passage 22 in the valve clack 24, and the axial force of the inlet pressure on the valve clack 24 is completely counteracted; when the valve clack 24 is in a sealed closed state, if the threads of the valve rod 7 are loosened, the axial pressing force of the threads disappears, and the valve clack 24 can also achieve a sealing effect under the action of the check spring force of the valve core spring 4.
Preferably, with the above solution, as shown in fig. 1 to 7, the sealing surface of the sealing block 3 is formed by overlaying welding of a high-temperature alloy material; furthermore, the sealing block 3 can be detachably arranged in the cavity at the bottom of the valve body 1, namely the sealing block 3 is movably arranged and is convenient to replace; furthermore, a throttling surface is formed on the valve clack 24, both an inclined surface on the valve clack 24 and the throttling surface on the sealing block 3 are inclined surfaces, and both the inclined surfaces are metal surfaces; by adopting the scheme, the throttling surfaces are inclined surfaces, so that the throttling surface of the valve clack 24 is matched with the throttling surface of the sealing block 3, and the throttling effect is improved.
The plug-in type stop valve provided by the utility model has compact and simple structure, can be installed in an integrated valve block, achieves the functions of cutting off and circulating media, and has better throttling effect; simultaneously the utility model provides a dynamic balance can be realized to cartridge formula stop valve to make output gas's pressure comparatively stable.
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 (9)
1. A plug-in type stop valve is characterized by comprising a valve body (1), a valve core (2), a valve core spring (4) and a valve rod adjusting assembly; a cavity is arranged in the valve body (1), a sealing block (3) is arranged at the bottom of the valve body (1), an air inlet (11) is arranged in the sealing block (3), an air outlet (12) is formed in the side wall of the valve body (1), and the air inlet (11) and the air outlet (12) are respectively communicated with the cavity; the valve core (2) is arranged in the cavity in a telescopic mode and can abut against the sealing block (3); a throttling channel (13) is formed between the valve core (2) and the sealing block (3); the valve core spring (4) is arranged in the cavity and is positioned at the top of the valve core (2); the valve rod adjusting assembly is arranged at the top of the valve body (1) and extends into the cavity to be abutted against the valve core (2), so that the opening degree of the throttling channel (13) is adjusted.
2. The cartridge stop valve according to claim 1, characterized in that the bottom of the cavity is formed with an outlet chamber (a), the air outlet (12) communicating with the outlet chamber (a); a balance cavity (b) is formed at the top of the cavity, and the valve core spring (4) is arranged in the balance cavity (b); one end of the valve core spring (4) is abutted against the top wall of the cavity, and the other end of the valve core spring (4) is abutted against the valve core (2).
3. The cartridge type stop valve according to claim 2, characterized in that a ventilation channel (21) is arranged in the valve core (2), one end of the ventilation channel (21) is communicated with the air inlet (11), and the other end of the ventilation channel (21) is communicated with the balance cavity (b).
4. A plug-in type stop valve according to any one of claims 1 to 3, characterized in that the valve rod adjusting component comprises a hand wheel (5), a valve sleeve (6) and a valve rod (7), wherein the valve sleeve (6) is fixedly arranged at the top of the valve body (1); the valve rod (7) penetrates through the valve sleeve (6) and can be abutted against the valve core (2), and the valve rod (7) is in threaded connection with the valve sleeve (6); the hand wheel (5) is fixedly arranged on the outer side of the valve rod (7) and can drive the valve rod (7) to rotate.
5. The cartridge type stop valve according to claim 4, wherein the outer wall surface of the valve rod (7) is provided with a scale (71), and the scale (71) is used for displaying the opening size of the opening degree of the throttling channel (13); and a sealing ring (9) is arranged between the valve rod (7) and the valve sleeve (6).
6. The cartridge type stop valve according to claim 4, wherein the valve rod adjusting component further comprises a valve rod (23), the valve rod (23) is arranged in the cavity, one end of the valve rod (23) is connected to the bottom of the valve rod (7), and the other end of the valve rod (23) abuts against the top surface of the valve core (2); the valve core spring (4) is sleeved on the valve column (23).
7. The cartridge type stop valve according to claim 6, wherein the valve stem regulating assembly further comprises an insert (8), the insert (8) being fixedly arranged in the cavity; the valve column (23) is abutted on the top surface of the valve core (2) through the insert (8), and the valve column (23) can slide on the insert (8); and a sealing ring is arranged between the valve column (23) and the insert (8).
8. A cartridge stop valve according to any one of claims 1 to 3, characterized in that the sealing block (3) is provided with a throttling surface; a metal ring (10) is arranged on the throttling surface; the bottom of the valve core (2) is provided with a valve clack (24), and the throttling channel (13) is formed between the valve clack (24) and the metal ring (10).
9. A cartridge stop valve according to claim 8, characterized in that a throttle surface is formed on the valve flap (24), the inclined surface on the valve flap (24) and the throttle surface on the sealing block (3) are both inclined surfaces, and the inclined surfaces are both metal surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022402312.9U CN214008082U (en) | 2020-10-26 | 2020-10-26 | Plug-in type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022402312.9U CN214008082U (en) | 2020-10-26 | 2020-10-26 | Plug-in type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214008082U true CN214008082U (en) | 2021-08-20 |
Family
ID=77301364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022402312.9U Active CN214008082U (en) | 2020-10-26 | 2020-10-26 | Plug-in type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214008082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217810A (en) * | 2022-07-05 | 2022-10-21 | 上海航空机械有限公司 | Reversely-opened plug-in type stop valve and method |
-
2020
- 2020-10-26 CN CN202022402312.9U patent/CN214008082U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217810A (en) * | 2022-07-05 | 2022-10-21 | 上海航空机械有限公司 | Reversely-opened plug-in type stop valve and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3442714B2 (en) | Pilot operated 2-port vacuum valve | |
| CN214008082U (en) | Plug-in type stop valve | |
| CN106155126B (en) | High-pressure gas integrated pressure reduction module | |
| CN205956442U (en) | Novel manual diaphragm valve | |
| CN111853309B (en) | Pilot-operated dynamic pressure difference balance valve | |
| TWI325483B (en) | ||
| CN202710507U (en) | Integrated testing cavity based on gas analysis meter | |
| CN101713410B (en) | Combined type energy regulating mechanism for screw compressor | |
| CN204480065U (en) | A kind of gases at high pressure integrated form pressure-reduction module | |
| CN211117836U (en) | A liquefied gas pressure reducing valve | |
| CN209725287U (en) | Inlay the ball valve of adjusting spool | |
| CN2806924Y (en) | Poppet valve pilot type ultra-high pneumatic proportional pressure-reducing valve | |
| CN212273180U (en) | Pilot-operated type dynamic differential pressure balance valve | |
| CN202832864U (en) | Low-pressure gas appliance of gas engine | |
| CN214248407U (en) | Plug-in type check valve | |
| CN214008172U (en) | Back pressure valve | |
| CN106051173B (en) | High-pressure air operated valve | |
| CN212297806U (en) | Pressure regulator for bottled liquefied petroleum gas | |
| CN211231639U (en) | Adjustable constant air volume electric control valve | |
| CN201680021U (en) | Unloading self-operated flow control valve | |
| CN220622938U (en) | Throttle two-stage pressure reducing valve structure | |
| CN211474883U (en) | Special oxygen stop valve of explosion-proof room | |
| CN210484227U (en) | Overflow type air conditioning valve for engineering machinery | |
| CN214888873U (en) | Servo main valve | |
| CN209762358U (en) | Pressure balancer for gas pressure regulator |
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 |