CN209743665U - Pneumatic control reversing valve - Google Patents
Pneumatic control reversing valve Download PDFInfo
- Publication number
- CN209743665U CN209743665U CN201920054530.2U CN201920054530U CN209743665U CN 209743665 U CN209743665 U CN 209743665U CN 201920054530 U CN201920054530 U CN 201920054530U CN 209743665 U CN209743665 U CN 209743665U
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- vent hole
- valve
- sealing groove
- annular sealing
- chamber
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Abstract
The utility model relates to a switching-over valve technical field, in particular to gas accuse switching-over valve, include: the valve core, the valve sleeve, the valve body and the plug; wherein: the valve core is arranged in the valve sleeve, and the valve sleeve is arranged in the valve body; the valve sleeve is sealed inside the valve body by the plug; the valve core makes reciprocating linear motion in the valve sleeve. The embodiment of the utility model provides a gas accuse switching-over valve can effectively solve the dead technical problem of case card of gas accuse switching-over valve.
Description
Technical Field
the utility model relates to a switching-over valve technical field, in particular to gas accuse switching-over valve.
background
The pneumatic control reversing valve is a reversing valve special for a pneumatic booster pump, the pneumatic booster pump is divided into a gas-liquid booster pump and a gas booster pump, and the principle of the pneumatic control reversing valve is that low pressure of a large-area piston is utilized to generate high pressure of a small-area piston. The pneumatic control reversing valve is an important mechanism for automatic reversing of the booster pump.
The pneumatic control reversing valve reciprocates according to the thrust between the large piston and the small piston, the small piston part is always pressurized, if the large piston part is inflated, the valve core can be pushed to the small piston side, and if the gas of the large piston part is exhausted, the valve core can be pushed to the large piston side. The structure of the gas booster pump is two-position four-way, and the gas booster pump is reversed through the reciprocating motion of the gas booster pump. When the reversing valve used in the market works, a valve core of the reversing valve is easy to be clamped at a certain position, so that the booster pump is halted, and the common solution is to manually cut off a vent pipeline on the reversing valve and then connect the vent pipeline, so that the working efficiency is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a through providing a gas accuse switching-over valve, the case of having solved among the prior art switching-over valve blocks the technical problem of in a certain position easily, when the valve body volume dwindles, obtains great flow moreover, can make this valve use 160 jar footpaths, in the large-traffic booster pump of 200 jar footpaths.
in order to solve the technical problem, an embodiment of the utility model provides a gas accuse switching-over valve, include: the valve core, the valve sleeve, the valve body and the plug; wherein: the valve core is arranged in the valve sleeve, and the valve sleeve is arranged in the valve body; the valve sleeve is sealed inside the valve body by the plug;
An air flow channel penetrating through the valve core is formed in the valve core; a first annular sealing groove, a second annular sealing groove, a third annular sealing groove and a fourth annular sealing groove are arranged outside the valve core in parallel;
A first sealing ring is arranged in the first annular sealing groove, a second sealing ring is arranged in the second annular sealing groove, a third sealing ring is arranged in the third annular sealing groove, and a fourth sealing ring is arranged in the fourth annular sealing groove;
A closed area between the first annular sealing groove and the second annular sealing groove is a first chamber, a closed area between the second annular sealing groove and the third annular sealing groove is a second chamber, and a closed area between the third annular sealing groove and the fourth annular sealing groove is a third chamber;
a first vent hole communicated with the airflow channel is formed in the valve core positioned in the first cavity, and a second vent hole communicated with the airflow channel is formed in the valve core positioned in the third cavity;
A fifth annular sealing groove, a sixth annular sealing groove, a seventh annular sealing groove and an eighth annular sealing groove are arranged outside the valve sleeve in parallel;
A fifth sealing ring is arranged in the fifth annular sealing groove, a sixth sealing ring is arranged in the sixth annular sealing groove, a seventh sealing ring is arranged in the seventh annular sealing groove, and an eighth sealing ring is arranged in the eighth annular sealing groove;
A sealing area between the fifth annular sealing groove and the sixth annular sealing groove is a fourth chamber, a sealing area between the sixth annular sealing groove and the seventh annular sealing groove is a fifth chamber, and a sealing area between the seventh annular sealing groove and the eighth annular sealing groove is a sixth chamber;
The valve sleeve positioned in the fourth cavity is provided with a third vent hole communicated with the interior of the valve sleeve, the valve sleeve positioned in the fifth cavity is provided with a fourth vent hole communicated with the interior of the valve sleeve, and the valve sleeve positioned in the sixth cavity is provided with a fifth vent hole communicated with the interior of the valve sleeve;
The third vent hole is connected with one side of a large piston of the gas-liquid booster pump, and the fifth vent hole is connected with the other side of the large piston of the hydraulic booster pump; the fourth vent hole is respectively connected with two sides of the gas-liquid booster pump;
when the valve core moves 1/2 strokes or more relative to one end of the valve sleeve, the third vent hole and the fourth vent hole are communicated with the second chamber, and the second vent hole is communicated with the fifth vent hole; gas introduced from the third vent hole is discharged through the second chamber and the fourth vent hole; gas introduced from the fifth vent hole enters the valve core through the second vent hole;
When the valve core moves 1/2 strokes or more relative to the other end of the valve sleeve, the fourth vent hole and the fifth vent hole are communicated with the second chamber, and the first vent hole is communicated with the third vent hole; gas introduced from the third vent hole is discharged through the second chamber and the fourth vent hole; and gas introduced from the third vent hole enters the valve core through the first vent hole.
further, at least one of the first vent hole and the second vent hole is provided;
The first ventilation holes are distributed on the same circumference, and the second ventilation holes are distributed on the same circumference.
Further, the number of the first vent holes and the number of the second vent holes are four.
furthermore, at least one of the third vent hole, the fourth vent hole and the fifth vent hole is provided;
The third ventilation holes are distributed on the same circumference, the fourth ventilation holes are distributed on the same circumference, and the fifth ventilation holes are distributed on the same circumference.
Furthermore, the number of the third vent hole, the number of the fourth vent hole and the number of the fifth vent hole are twelve respectively.
Furthermore, the number of the second annular seal grooves is two, and the two second annular seal grooves are respectively provided with one second seal ring.
Furthermore, the third annular seal grooves are arranged in parallel, and two third seal rings are respectively arranged on the two third annular seal grooves.
The embodiment of the utility model provides a one or more technical scheme possesses following beneficial effect or advantage at least:
In the pneumatic control reversing valve provided by the embodiment of the utility model, when the valve core moves relative to one end of the valve sleeve, the gas introduced from the third vent hole is discharged through the second cavity and the fourth vent hole; and the gas introduced from the fifth vent hole enters the valve core through the second vent hole. When the valve core moves relative to the other end of the valve sleeve, gas introduced from the third vent hole is discharged through the second chamber and the fourth vent hole; and the gas introduced from the third vent hole enters the valve core through the first vent hole. The first vent hole and the second vent hole are alternately filled with gas, so that the valve core of the reversing valve can be effectively prevented from being blocked.
Drawings
fig. 1 is a schematic view illustrating an assembly of a valve core and a valve sleeve according to an embodiment of the present invention;
Fig. 2 is another schematic assembly view of the valve core and the valve sleeve according to the embodiment of the present invention;
Fig. 3 is a schematic view of a valve core structure provided in an embodiment of the present invention;
fig. 4 is a schematic structural view of a valve sleeve provided in an embodiment of the present invention;
fig. 5 is a schematic view of a plug structure provided in an embodiment of the present invention;
fig. 6 is a schematic view of a valve body structure provided by the embodiment of the present invention.
Detailed Description
the embodiment of the utility model provides a through providing a gas accuse switching-over valve, the case of having solved among the prior art switching-over valve blocks the technical problem in a certain position easily.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the present invention provides a pneumatic control reversing valve, including: the valve core 2, the valve sleeve 1, the valve body 23 and the plug 22; wherein: the valve core 2 is arranged in the valve sleeve 1, and the valve sleeve 1 is arranged in the valve body 23; the plug 22 closes the valve sleeve 1 inside the valve body 23.
referring to fig. 1-3, an air flow channel penetrating through the valve core 2 is formed in the valve core 2; a first annular seal groove 7, a second annular seal groove 8, a third annular seal groove 9 and a fourth annular seal groove 10 are arranged outside the valve core 2 in parallel. A first sealing ring is arranged in the first annular sealing groove 7, a second sealing ring is arranged in the second annular sealing groove 8, a third sealing ring is arranged in the third annular sealing groove 9, and a fourth sealing ring is arranged in the fourth annular sealing groove 10. Wherein, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are in close contact with the inner wall of the valve sleeve 1. The closed area between the first annular seal groove 7 and the second annular seal groove 8 is a first chamber 16, the closed area between the second annular seal groove 8 and the third annular seal groove 9 is a second chamber 17, and the closed area between the third annular seal groove 9 and the fourth annular seal groove 10 is a third chamber 18.
referring to fig. 1 to 3, a first vent hole 11 communicating with the air flow passage is formed in the valve core 2 located in the first chamber 16, and a second vent hole 12 communicating with the air flow passage is formed in the valve core 2 located in the third chamber 18.
Referring to fig. 1, 2 and 4, a fifth annular seal groove 3, a sixth annular seal groove 4, a seventh annular seal groove 5 and an eighth annular seal groove 6 are arranged in parallel outside the valve housing 1. A fifth sealing ring is arranged in the fifth annular sealing groove 3, a sixth sealing ring is arranged in the sixth annular sealing groove 4, a seventh sealing ring is arranged in the seventh annular sealing groove 5, and an eighth sealing ring is arranged in the eighth annular sealing groove 6. Wherein, the fifth sealing ring, the sixth sealing ring, the seventh sealing ring and the eighth sealing ring are in close contact with the inner wall of the valve body 23. A sealing area between the fifth annular seal groove 3 and the sixth annular seal groove 4 is a fourth chamber 19, a sealing area between the sixth annular seal groove 4 and the seventh annular seal groove 5 is a fifth chamber 20, and a sealing area between the seventh annular seal groove 5 and the eighth annular seal groove 4 is a sixth chamber 21.
referring to fig. 1, 2 and 4, a third vent hole 13 communicated with the inside of the valve housing 1 is formed in the valve housing 1 located in the fourth chamber 19, a fourth vent hole 14 communicated with the inside of the valve housing 1 is formed in the valve housing 1 located in the fifth chamber 20, and a fifth vent hole 15 communicated with the inside of the valve housing 1 is formed in the valve housing 1 located in the sixth chamber 21. The third vent hole 13 is connected with one side of a large piston of the gas-liquid booster pump, and the fifth vent hole 15 is connected with the other side of the large piston of the hydraulic booster pump; the fourth vent hole 14 is connected with both sides of the gas-liquid booster pump respectively.
referring to fig. 1 to 4, when the valve core 2 moves 1/2 strokes or more relative to one end of the valve sleeve 1, the third vent hole 13 and the fourth vent hole 14 are communicated with the second chamber 17, and the second vent hole 12 is communicated with the fifth vent hole 15; the gas introduced from the third vent hole 13 is discharged through the second chamber 17 and the fourth vent hole 14; the gas introduced from the fifth vent hole 15 enters the interior of the valve element 2 through the second vent hole 12. When the valve core 2 moves 1/2 strokes or more relative to the other end of the valve sleeve 1, the fourth vent hole 14 and the fifth vent hole 15 are communicated with the second chamber 17, and the first vent hole 11 is communicated with the third vent hole 13; the gas introduced from the third vent hole 13 is discharged through the second chamber 17 and the fourth vent hole 14; the gas introduced from the third vent hole 13 enters the valve element 2 through the first vent hole 11.
In a specific embodiment provided by the present invention, referring to fig. 1 to 3, at least one of the first vent hole 11 and the second vent hole 12 is provided; the first ventilation holes 11 are distributed on the same circumference, and the second ventilation holes 12 are distributed on the same circumference.
in a specific embodiment of the present invention, the number of the first ventilation holes 11 and the number of the second ventilation holes 12 are four, and the four first ventilation holes 11 and the four second ventilation holes 12 are uniformly distributed on the circumference where the first ventilation holes 11 and the second ventilation holes 12 are located.
In a specific embodiment provided by the present invention, referring to fig. 1, fig. 2 and fig. 4, at least one third vent hole 13, at least one fourth vent hole 14 and at least one fifth vent hole 15 are provided; the third ventilation holes 13 are distributed on the same circumference, the fourth ventilation holes 14 are distributed on the same circumference, and the fifth ventilation holes 15 are distributed on the same circumference.
in a specific embodiment provided by the present invention, referring to fig. 4, the number of the third vent hole 13, the number of the fourth vent hole 14, and the number of the fifth vent hole 15 are twelve, respectively. The twelve third vent holes 13, the twelve fourth vent holes 14 and the twelve fifth vent holes 15 are uniformly distributed on the circumference of the circle.
In a specific embodiment provided by the present invention, referring to fig. 1-3, two second annular seal grooves 8 are arranged side by side, and a second seal ring is respectively arranged on the two second annular seal grooves 8.
In a specific embodiment provided by the present invention, referring to fig. 1-3, two third annular seal grooves 9 are arranged side by side, and a third seal ring is respectively arranged on two third annular seal grooves 9.
The embodiment of the utility model provides a gas accuse switching-over valve's working process as follows: referring to fig. 1-6, a third vent hole 13 of the reversing valve is connected with one side of a large piston of the gas-liquid booster pump, and a fifth vent hole 15 is connected with the other side of the large piston of the hydraulic booster pump; the fourth vent hole 14 is respectively connected with two sides of a large piston of the gas-liquid booster pump. The supercharging ratio between the large piston and the small piston is reduced to 1.5625, the problem of overlarge force during reversing is solved, and the valve core 2 is not easy to break. When the valve core 2 moves 1/2 strokes or more relative to one end of the valve sleeve 1, the third vent hole 13 and the fourth vent hole 14 are communicated with the second chamber 17, and the second vent hole 12 is communicated with the fifth vent hole 15; the gas introduced from the third vent hole 13 is discharged through the second chamber 17 and the fourth vent hole 14; the gas introduced from the fifth vent hole 15 enters the interior of the valve element 2 through the second vent hole 12. When the valve core 2 moves 1/2 strokes or more relative to the other end of the valve sleeve 1, the fourth vent hole 14 and the fifth vent hole 15 are communicated with the second chamber 17, and the first vent hole 11 is communicated with the third vent hole 13; the gas introduced from the third vent hole 13 is discharged through the second chamber 17 and the fourth vent hole 14; the gas introduced from the third vent hole 13 enters the valve element 2 through the first vent hole 11.
The embodiment of the utility model provides a one or more technical scheme possesses following beneficial effect or advantage at least:
In the pneumatic control reversing valve provided by the embodiment of the utility model, when the valve core moves relative to one end of the valve sleeve, the gas introduced from the third vent hole is discharged through the second cavity and the fourth vent hole; and the gas introduced from the fifth vent hole enters the valve core through the second vent hole. When the valve core moves relative to the other end of the valve sleeve, gas introduced from the third vent hole is discharged through the second chamber and the fourth vent hole; and the gas introduced from the third vent hole enters the valve core through the first vent hole. The first vent hole and the second vent hole are alternately filled with gas, so that the valve core of the reversing valve can be effectively prevented from being blocked.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. a pneumatic operated directional valve, comprising: the valve core, the valve sleeve, the valve body and the plug; wherein: the valve core is arranged in the valve sleeve, and the valve sleeve is arranged in the valve body; the valve sleeve is sealed inside the valve body by the plug;
an air flow channel penetrating through the valve core is formed in the valve core; a first annular sealing groove, a second annular sealing groove, a third annular sealing groove and a fourth annular sealing groove are arranged outside the valve core in parallel;
a first sealing ring is arranged in the first annular sealing groove, a second sealing ring is arranged in the second annular sealing groove, a third sealing ring is arranged in the third annular sealing groove, and a fourth sealing ring is arranged in the fourth annular sealing groove;
A closed area between the first annular sealing groove and the second annular sealing groove is a first chamber, a closed area between the second annular sealing groove and the third annular sealing groove is a second chamber, and a closed area between the third annular sealing groove and the fourth annular sealing groove is a third chamber;
A first vent hole communicated with the airflow channel is formed in the valve core positioned in the first cavity, and a second vent hole communicated with the airflow channel is formed in the valve core positioned in the third cavity;
A fifth annular sealing groove, a sixth annular sealing groove, a seventh annular sealing groove and an eighth annular sealing groove are arranged outside the valve sleeve in parallel;
a fifth sealing ring is arranged in the fifth annular sealing groove, a sixth sealing ring is arranged in the sixth annular sealing groove, a seventh sealing ring is arranged in the seventh annular sealing groove, and an eighth sealing ring is arranged in the eighth annular sealing groove;
a sealing area between the fifth annular sealing groove and the sixth annular sealing groove is a fourth chamber, a sealing area between the sixth annular sealing groove and the seventh annular sealing groove is a fifth chamber, and a sealing area between the seventh annular sealing groove and the eighth annular sealing groove is a sixth chamber;
the valve sleeve positioned in the fourth cavity is provided with a third vent hole communicated with the interior of the valve sleeve, the valve sleeve positioned in the fifth cavity is provided with a fourth vent hole communicated with the interior of the valve sleeve, and the valve sleeve positioned in the sixth cavity is provided with a fifth vent hole communicated with the interior of the valve sleeve;
the third vent hole is connected with one side of a large piston of the gas-liquid booster pump, and the fifth vent hole is connected with the other side of the large piston of the hydraulic booster pump; the fourth vent hole is respectively connected with two sides of the gas-liquid booster pump;
When the valve core moves 1/2 strokes or more relative to one end of the valve sleeve, the third vent hole and the fourth vent hole are communicated with the second chamber, and the second vent hole is communicated with the fifth vent hole; gas introduced from the third vent hole is discharged through the second chamber and the fourth vent hole; gas introduced from the fifth vent hole enters the valve core through the second vent hole;
When the valve core moves 1/2 strokes or more relative to the other end of the valve sleeve, the fourth vent hole and the fifth vent hole are communicated with the second chamber, and the first vent hole is communicated with the third vent hole; gas introduced from the third vent hole is discharged through the second chamber and the fourth vent hole; and gas introduced from the third vent hole enters the valve core through the first vent hole.
2. an air-operated directional valve according to claim 1, wherein at least one of the first vent hole and the second vent hole;
the first ventilation holes are distributed on the same circumference, and the second ventilation holes are distributed on the same circumference.
3. The pneumatic operated directional valve according to claim 1, wherein the number of the first vent holes and the number of the second vent holes are four.
4. The pneumatic control reversing valve according to claim 1, wherein at least one of the third vent hole, the fourth vent hole and the fifth vent hole is provided;
The third ventilation holes are distributed on the same circumference, the fourth ventilation holes are distributed on the same circumference, and the fifth ventilation holes are distributed on the same circumference.
5. an air-controlled reversing valve according to claim 4, wherein the number of the third vent hole, the number of the fourth vent hole and the number of the fifth vent hole are twelve respectively.
6. the pneumatic control reversing valve according to claim 1, wherein two second annular seal grooves are arranged in parallel, and one second seal ring is arranged on each of the two second annular seal grooves.
7. the pneumatic control reversing valve according to claim 1, wherein two third annular seal grooves are arranged in parallel, and one third seal ring is arranged on each of the two third annular seal grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920054530.2U CN209743665U (en) | 2019-01-14 | 2019-01-14 | Pneumatic control reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920054530.2U CN209743665U (en) | 2019-01-14 | 2019-01-14 | Pneumatic control reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209743665U true CN209743665U (en) | 2019-12-06 |
Family
ID=68705682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920054530.2U Expired - Fee Related CN209743665U (en) | 2019-01-14 | 2019-01-14 | Pneumatic control reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209743665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382916A (en) * | 2022-01-23 | 2022-04-22 | 徐州博安科技发展有限责任公司 | Novel large-flow ejector rod type reversing valve |
-
2019
- 2019-01-14 CN CN201920054530.2U patent/CN209743665U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382916A (en) * | 2022-01-23 | 2022-04-22 | 徐州博安科技发展有限责任公司 | Novel large-flow ejector rod type reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20210114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |