CN205446820U - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN205446820U CN205446820U CN201521100920.7U CN201521100920U CN205446820U CN 205446820 U CN205446820 U CN 205446820U CN 201521100920 U CN201521100920 U CN 201521100920U CN 205446820 U CN205446820 U CN 205446820U
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- chamber
- internal diameter
- spool
- baffle plate
- stop baffle
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Abstract
The utility model discloses a check valve, including valve body, case and locking baffle, the valve body includes and first cavity, second cavity and third cavity is provided with the valve port between first cavity and the second cavity, and the internal diameter of valve port is lighter than the internal diameter of first cavity, and the case is through keeping away from, open, close the valve port near the valve port, be formed with a plurality of first passageways between the outer wall of case and the inner wall of first cavity, the locking baffle includes supporting part and two at least claws, is formed with a through -hole in the supporting part, and the claw extends the outside of supporting part, and the claw includes portion of bending and foot, and the foot holds the inner wall looks butt in chamber with the locking baffle, is formed with two at least second channels between the inner wall of supporting part, claw, first cavity and the inner wall that the locking baffle holds the chamber, and a second channel feeds through with a first passageway at least. The utility model discloses a check valve simple structure, processing make things convenient for, the cost is lower, and response speed is very fast.
Description
Technical field
This utility model relates to field of fluid control, is specifically related to a kind of check valve.
Background technology
On the premise of to advocate energy-conserving and environment-protective, automobile industry is also the most progressive, and market gone on by electric automobile.Inside the automobile-used air-conditioning of electric automobile, check valve has had become as the ingredient that can not lack.At present in the automobile-used air conditioning system of electric automobile, check valve great majority are to use welding type and structure complicated, along with to check valve, in air conditioning system for vehicle, property easy for installation and subsequent maintenance are with the convenience changed, to the problem in one-way valve structures and to be solved.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides the check valve that a kind of simple in construction is easy for installation, has the processing of stop baffle plate with easy for installation, and fast response time, it is possible to the above-mentioned technical problem of effective solution.
The technical solution of the utility model provides a kind of check valve, be provided with in including fluid passage valve body, can the spool of fluid passage described in either on or off and stop baffle plate, it is characterized in that, described valve body includes the first chamber for accommodating described spool and can be with the second chamber of external connection and the 3rd chamber, it is provided with valve port between described first chamber and the second chamber, described valve port is near the internal diameter of described first chamber portion less than the internal diameter of described first chamber, and described spool is by opening away from, close described valve port, close described valve port；It is provided with internal diameter between described first chamber and described 3rd chamber and accommodates chamber more than the stop baffle plate of described first chamber and the 3rd chamber, between outer wall and the inwall of described first chamber of described spool, be formed with multiple first passage；
Described stop baffle plate includes supporting part and at least two claw, a through hole it is formed with in described supporting part, described claw extends the outside of described supporting part, described claw includes bending part and foot, the inwall that described foot accommodates chamber with described stop baffle plate abuts against, being formed with at least two second channel between described supporting part, claw, the inwall of the first chamber and the inwall in stop baffle plate receiving chamber, a described second channel at least connects with a described first passage.
Meet between maximum distance R1 and the internal diameter d1 of described first chamber, the 3rd chamber d3 between described bending part and the center of supporting part: d1≤d3≤2R1, and the diameter of a circle circumscribed with each foot accommodates the internal diameter in chamber more than described stop baffle plate.
The diameter d4 of described supporting part and the internal diameter d1 of the first chamber meets: d4 ＜ d1, meets between internal diameter d5 and the spool of through hole 33: d5 is less than the circumscribed internal diameter with the prism of spool.The circulation area of described first passage is less than the circulation area of second channel.
Described stop baffle plate is made up of elastomeric material；Being provided with an annular relief protruding from stop baffle plate receiving cavity wall between described stop baffle plate receiving chamber and the 3rd chamber, described foot abuts against with described annular relief.
Described spool includes spool main part and the auxiliary section matched with described valve port, described spool main part is right prism structure or substantially straight prism structure, the inwall of described spool main part and the first chamber is slidably matched, and is formed as a part for described first passage between outer cylinder and the inwall of described first chamber of described spool main part；Described auxiliary section one frustum cone structure, at least some of external diameter of described auxiliary section is less than the internal diameter of described valve port, and at least some of external diameter is more than the internal diameter of described valve port, and the maximum outside diameter of described auxiliary section is slightly less than the internal diameter of described first chamber.
Described spool includes spool main part and the auxiliary section matched with described valve port, described spool main part is substantially straight prism structure, prismatic parts is provided with chamfering structure, the inwall of described chamfering structure and the first chamber is slidably matched, and is formed as a part for described first passage between outer cylinder and the inwall of described first chamber of described spool main part；The minimum outer diameter of described auxiliary section is more than the internal diameter of described valve port, and the maximum outside diameter of described auxiliary section is less than the internal diameter of described first chamber.
Described valve body includes valve body portion, the first interface portion being positioned at both sides, described valve body portion and the second interface portion, and the outside of described first interface portion and the second interface portion is respectively arranged with external screw thread, and described valve body portion is the nut structure of polygon prism.
Described second chamber is corresponding with described first interface portion, and described 3rd chamber is corresponding with described second interface portion, and the internal diameter of described second chamber is more than the internal diameter of described valve port, and described stop baffle plate accommodates the part that chamber is described 3rd chamber.
In check valve of the present utility model, only with a stop baffle plate, and the simple in construction of stop baffle plate, processing is with easy for installation, it is possible to effectively reduce cost, and owing to fluid is sufficiently large with the contact area of spool, the response speed making check valve is very fast.
Accompanying drawing explanation
Fig. 1 is the check valve schematic perspective view of this utility model one embodiment.
Fig. 2 is the generalized section when valve port is closed of the check valve shown in Fig. 1.
Fig. 3 is the generalized section when valve port is opened of the check valve shown in Fig. 1.
Fig. 4 is the spool schematic perspective view of check valve shown in Fig. 1.
Fig. 5 is the schematic perspective view of the stop baffle plate of check valve shown in Fig. 1.
Fig. 6 is the schematic front view of stop baffle plate shown in Fig. 5.
Fig. 7 is Fig. 1 check valve cross-sectional schematic at spool.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is illustrated.
Fig. 1 to Fig. 7 shows an embodiment of this utility model check valve, as it can be seen, in the present embodiment, check valve be provided with in including fluid passage valve body 1, can the spool 2 of either on or off fluid passage and support the stop baffle plate 3 of described spool 2.Valve body 1 includes valve body portion 17, the first interface portion 15 being positioned at both sides, valve body portion 17 and the second interface portion 16, the outside of first interface portion 15 and the second interface portion 16 is respectively arranged with external screw thread, valve body portion 17 is the nut structure of polygon prism, can facilitate first interface portion 15 and the installation of the second interface portion 16.
The first chamber 13 for accommodating spool 2 and the second corresponding with first interface portion 15 and the second interface portion 16 respectively chamber the 11, the 3rd chamber 12 it is provided with in valve body 1.Between the first chamber 13 and the second chamber 11, be provided with valve port 14, valve port 14 near the internal diameter of the first chamber 13 part less than the internal diameter of the first chamber 13.For the ease of the processing of valve port 14, the internal diameter of valve port 14 is less than the internal diameter of the first chamber 13.
Between the first chamber 13 and the 3rd chamber 12, it is additionally provided with the stop baffle plate for accommodating stop baffle plate 3 accommodates chamber, accommodate at stop baffle plate and be provided with an annular relief between chamber and the 3rd chamber 12, one end of stop baffle plate 3 abuts against with annular relief, so that stop baffle plate 3 is fixed on stop baffle plate and accommodates intracavity.Certainly, stop baffle plate 3 can also be fixed by back-up ring, can accommodate at stop baffle plate and be provided with a groove for fixing back-up ring between chamber and the 3rd chamber 12.Here it should be noted that stop baffle plate accommodates the part that chamber can also be the 3rd chamber.
As shown in Figures 4 to 6, spool 2 includes spool main part 21 and auxiliary section 22, spool main part 21 can be in right prism structure or substantially straight prism structure, being slidably matched between spool main part 21 and the inwall of the first chamber 13, the prism of spool main part 21 can slide along the inwall of the first chamber 13.In the present embodiment, sliding in the first chamber 13 to be more beneficial for spool 2, spool main part 21, in substantially straight prism structure, is provided with chamfering structure at prismatic parts, can reduce prismatic parts abrasion in slip.
Match with valve port 14 in auxiliary section 22, auxiliary section 22 can be a frustum cone structure, at least some of external diameter of auxiliary section 22 is less than the internal diameter of valve port 14, and at least some of external diameter is more than the internal diameter of valve port 14, and the maximum outside diameter of auxiliary section 22 is slightly less than the internal diameter of the first chamber 13.So, the either on or off valve port 14 that auxiliary section 22 can be the most smooth.It is more than valve port 14 internal diameter it is pointed out here that auxiliary section can also be external diameter but less than the cylinder of the first chamber 13 internal diameter or other similar structures, is offseted by the step surface between end face and valve port 14 and first chamber 13 of auxiliary section and fetch close port 14.
Stop baffle plate 3 includes supporting part 31 and at least two claw 32, supporting part 31 is circular or for the most circular, a through hole 33 it is formed with in supporting part 31, the cross section of through hole 33 can be circular, polygon or polymorphic structure, for the ease of processing and the circulation of fluid, the cross section of through hole 33 is circular.Bottom and the contact area of fluid in the 3rd chamber 12 of spool 2 can be increased by arranging through hole 33, thus improve the response speed of check valve.
Claw 32 extends the outside of supporting part 31, and claw 32 includes bending part 321 and foot 322.In order to increase the distance between bending part 321 and supporting part 31, it is also possible to be provided with the straight connecting portion 323 extended outside supporting part 31 between bending part 321 and supporting part 31.Meet between maximum distance R1 and the internal diameter d1 of the first chamber, the 3rd chamber d3 between the center of bending part 321 and supporting part 31: d1≤d3≤2R1, and the diameter of a circle circumscribed with each foot 322 accommodates the internal diameter in chamber more than stop baffle plate.Further, the diameter d4 of the supporting part 31 and internal diameter d1 of the first chamber meets: d4 ＜ d1, such fluid can also be able to smooth outflow by fluid when spool 2 is supported in stop baffle plate 3.Meet between internal diameter d5 and the spool of through hole 33: d5 is less than the circumscribed internal diameter with the prism of spool, and so, spool can be supported in the supporting part 31 of stop baffle plate 3.
Stop baffle plate 3 is made up of elastomeric material, due to d3≤2R1, stop baffle plate 3 can be arranged in stop baffle plate and accommodate intracavity, and owing to each foot 322 is compressed, each foot 322 accommodates the inwall in chamber and produces certain active force stop baffle plate, stop catch plate 3 can be made to be anchored on stop baffle plate and accommodate intracavity.
As shown in Figure 7, it is formed with multiple first passage 23 between outer cylinder and the inwall of the first chamber 13 of spool main part 21, it is formed with multiple second channel 123 between supporting part 31, the inwall of claw the 32, first chamber 13 and the inwall in stop baffle plate receiving chamber, one second channel 123 at least connects with a first passage 23, and the circulation area of first passage 23 is less than the circulation area of second channel 123.
In the present embodiment, fluid passage includes the second chamber 11, valve port 14, first passage 23, second channel 123 and the 3rd chamber 12.When the fluid in the second chamber 11 and the fluid in the 3rd chamber 12 produce pressure differential, the position of spool 2 changes, thus promotes spool 2 to move towards valve port 14 or stop baffle plate 3, so that closed check valve or open.
As shown in Figures 2 and 3, in the present embodiment, check valve is vertically placed, spool is supported in stop baffle plate 3, when the fluid pressure in fluid pressure ratio the second chamber 11 in the 3rd chamber 12 is big, when fluid acts on the gravity that the pressure bottom spool is more than spool through the through hole 33 of stop baffle plate 3, fluid forces spool moves towards valve port 14, and make spool 2 close port 14, and under the effect of pressure differential, spool 2 seals valve port 14.When the second chamber 11 fluid pressure is more than the 3rd chamber 12 fluid pressure, pressure differential is there is between second chamber 11 and the 3rd chamber, under the effect of pressure differential, spool 2 moves towards stop baffle plate 3, valve port 14 is opened, and now, the second chamber 11 is connected with the 3rd chamber 12 with second channel 123 by valve port 14, first passage 23, fluid course is opened, and spool 2 finally can support in the supporting part of stop baffle plate 3.
When the fluid pressure in the 3rd chamber 12 is more than the second chamber 11, now there is pressure differential between the second chamber 11 and the first chamber 13, under the effect of pressure reduction, fluid may pass through the through hole 33 of stop baffle plate 3 and acts on bottom spool, fluid forces spool moves towards valve port 14, and making spool 2 close port 14, fluid course is closed.
It is pointed out here that check valve is not limited to the modes of emplacement in accompanying drawing, can being that other is arbitrarily placed, as long as producing pressure differential between the first chamber and the second chamber, spool either on or off valve port can be made.
The above, be only specific embodiment of the utility model, and this utility model not makees any pro forma restriction, and the directionality vocabulary such as up and down appeared in literary composition is all described with accompanying drawing, not limits its orientation.Although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model.Any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, may utilize the disclosure above technology contents and technical solutions of the utility model are made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the range of technical solutions of the utility model protection.
Claims (9)
1. a check valve, be provided with in including fluid passage valve body, can the spool of fluid passage described in either on or off and stop baffle plate, it is characterized in that, described valve body includes the first chamber for accommodating described spool and can be with the second chamber of external connection and the 3rd chamber, it is provided with valve port between described first chamber and the second chamber, described valve port is near the internal diameter of described first chamber portion less than the internal diameter of described first chamber, and described spool is by opening away from, close described valve port, close described valve port；It is provided with internal diameter between described first chamber and described 3rd chamber and accommodates chamber more than the stop baffle plate of described first chamber and the 3rd chamber, between outer wall and the inwall of described first chamber of described spool, be formed with multiple first passage；
Described stop baffle plate includes supporting part and at least two claw, a through hole it is formed with in described supporting part, described claw extends the outside of described supporting part, described claw includes bending part and foot, the inwall that described foot accommodates chamber with described stop baffle plate abuts against, being formed with at least two second channel between described supporting part, claw, the inwall of the first chamber and the inwall in stop baffle plate receiving chamber, a described second channel at least connects with a described first passage.
Check valve the most according to claim 1, it is characterized in that, meet between maximum distance R1 and the internal diameter d1 of described first chamber, the 3rd chamber d3 between described bending part and the center of supporting part: d1≤d3≤2R1, and the diameter of a circle circumscribed with each foot accommodates the internal diameter in chamber more than described stop baffle plate.
Check valve the most according to claim 2, it is characterised in that the diameter d4 of described supporting part and the internal diameter d1 of the first chamber meets: d4 ＜ d1, meets between internal diameter d5 and the spool of through hole 33: d5 is less than the circumscribed internal diameter with the prism of spool.
Check valve the most according to claim 3, it is characterised in that the circulation area of described first passage is less than the circulation area of second channel.
Check valve the most according to claim 4, it is characterised in that described stop baffle plate is made up of elastomeric material；Being provided with an annular relief protruding from stop baffle plate receiving cavity wall between described stop baffle plate receiving chamber and the 3rd chamber, described foot abuts against with described annular relief.
6. according to the check valve described in any one of claim 1 to 5, it is characterized in that, described spool includes spool main part and the auxiliary section matched with described valve port, described spool main part is right prism structure or substantially straight prism structure, the inwall of described spool main part and the first chamber is slidably matched, and is formed as a part for described first passage between outer cylinder and the inwall of described first chamber of described spool main part；Described auxiliary section one frustum cone structure, at least some of external diameter of described auxiliary section is less than the internal diameter of described valve port, and at least some of external diameter is more than the internal diameter of described valve port, and the maximum outside diameter of described auxiliary section is slightly less than the internal diameter of described first chamber.
7. according to the check valve described in any one of claim 1 to 5, it is characterized in that, described spool includes spool main part and the auxiliary section matched with described valve port, described spool main part is substantially straight prism structure, prismatic parts is provided with chamfering structure, the inwall of described chamfering structure and the first chamber is slidably matched, and is formed as a part for described first passage between outer cylinder and the inwall of described first chamber of described spool main part；The minimum outer diameter of described auxiliary section is more than the internal diameter of described valve port, and the maximum outside diameter of described auxiliary section is less than the internal diameter of described first chamber.
Check valve the most according to claim 5, it is characterized in that, described valve body includes valve body portion, the first interface portion being positioned at both sides, described valve body portion and the second interface portion, the outside of described first interface portion and the second interface portion is respectively arranged with external screw thread, and described valve body portion is the nut structure of polygon prism.
Check valve the most according to claim 8, it is characterized in that, described second chamber is corresponding with described first interface portion, described 3rd chamber is corresponding with described second interface portion, the internal diameter of described second chamber is more than the internal diameter of described valve port, and described stop baffle plate accommodates the part that chamber is described 3rd chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100920.7U CN205446820U (en) | 2015-12-25 | 2015-12-25 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521100920.7U CN205446820U (en) | 2015-12-25 | 2015-12-25 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446820U true CN205446820U (en) | 2016-08-10 |
Family
ID=56578516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521100920.7U Active CN205446820U (en) | 2015-12-25 | 2015-12-25 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446820U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506549A (en) * | 2017-02-23 | 2018-09-07 | 费希尔控制产品国际有限公司 | The control valve for fluids of discrete flow channel with the fluid velocity being arranged as at balanced valve port perimeter |
| CN110274066A (en) * | 2019-06-27 | 2019-09-24 | 杭州力龙液压有限公司 | Throttle valve and hydraulic system |
| CN111043359A (en) * | 2019-11-05 | 2020-04-21 | 潍坊嘉腾液压技术有限公司 | One-way throttle valve and manufacturing method thereof |
-
2015
- 2015-12-25 CN CN201521100920.7U patent/CN205446820U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506549A (en) * | 2017-02-23 | 2018-09-07 | 费希尔控制产品国际有限公司 | The control valve for fluids of discrete flow channel with the fluid velocity being arranged as at balanced valve port perimeter |
| CN110274066A (en) * | 2019-06-27 | 2019-09-24 | 杭州力龙液压有限公司 | Throttle valve and hydraulic system |
| CN111043359A (en) * | 2019-11-05 | 2020-04-21 | 潍坊嘉腾液压技术有限公司 | One-way throttle valve and manufacturing method thereof |
| CN111043359B (en) * | 2019-11-05 | 2021-08-31 | 潍坊嘉腾液压技术有限公司 | One-way throttle valve and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |