CN203686288U - Flow-limiting valve - Google Patents
Flow-limiting valve Download PDFInfo
- Publication number
- CN203686288U CN203686288U CN201420064711.0U CN201420064711U CN203686288U CN 203686288 U CN203686288 U CN 203686288U CN 201420064711 U CN201420064711 U CN 201420064711U CN 203686288 U CN203686288 U CN 203686288U
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- Prior art keywords
- valve
- flow
- spool
- spring
- runner
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims description 17
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 239000007788 liquid Substances 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a flow-limiting valve which comprises a valve body A and a valve body B. A flow channel A is arranged in the valve body A. A flow channel B is arranged in the valve body B. The valve body B is arranged on the valve body A in a sleeved mode. The flow channel A is communicated with the flow channel B. A limiting protruding ring A is arranged in the flow channel A. The flow-limiting valve further comprises a spring and a valve element. The spring is arranged in the flow channel A. The valve element is arranged in the flow channel B. One end of the spring is connected with the limiting protruding ring A. The other end of the spring is connected with the valve element. One end, placed in the valve body B, of the valve body A is a sealed oblique face A. A sealed oblique face B corresponding to the sealed oblique face A is arranged on the valve element. The flow-limiting valve has the advantages that control over the maximum pressure and valve element resetting are achieved through the elasticity of the spring, so that control over the maximum pressure and valve element resetting do not rely on the weight of the valve element any longer, accordingly, the flow-limiting valve can be set at any state, and the problem that an existing flow-limiting valve can only be set in a vertical state is avoided.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of flow-limiting valve.
Background technique
As shown in Figure 1, traditional flow-limiting valve comprises valve body (7), and the upper end of valve body (7) is provided with outlet connection (8), is placed with steel ball (9) in valve body (7).Liquid or gas enter valve body from the entrance of valve body (7), and depended on pressure makes steel ball displacement opening and closing of fault outlet connection (8).The shortcoming of traditional flow-limiting valve is, need to rely on the weight of steel ball (9) self to realize reset and the control to pressure maximum, and this can only vertically arrange traditional flow-limiting valve, has limited application area.
Tradition flow-limiting valve another shortcoming be, engaging pressure is not accurate, cut off after easily stops, cause instability of flow.
Model utility content
The purpose of this utility model is to overcome flow-limiting valve traditional in prior art can only vertically disposed deficiency, provides a kind of installment state unrestricted flow-limiting valve.
The purpose of this utility model is achieved through the following technical solutions:
A kind of flow-limiting valve, comprises valve A and valve B, offers runner A in valve A, offers runner B in valve B, and valve B is placed on valve A, and runner A is communicated with runner B, is provided with position limiting convex ring A in runner A; Also comprise spring and spool, spring is arranged in runner A, and spool is arranged in runner B, and one end of spring is connected with position limiting convex ring A, and the other end of spring is connected with spool; Valve A is positioned at the end, one end of valve B inside for sealing inclined-plane A, is arranged at the sealing inclined-plane B that inclined-plane A is corresponding on spool.
The utility model adopts the elasticity of spring to realize the control of pressure maximum and the reset of spool, make the control of pressure maximum and the reset of spool no longer rely on the weight of spool self, thereby make the utility model can be with free position setting, and needn't as existing flow-limiting valve, can only vertically arrange.
The utility model is in when work, and liquid or gas enter from valve B, and promotes spool and make spring-compressed, when liquid or gas pressure are when excessive, sealing inclined-plane A contacts with sealing inclined-plane B, and liquid or gas cannot be passed through, thereby realizes the object of current limliting in the time that pressure is excessive.
Further, in described runner B, offer position limiting convex ring B, described spring is pressed in described spool on position limiting convex ring B.
Position limiting convex ring B can realize the effective location to spool.
Further, one end that described spool is connected with described spring offers groove A, is evenly distributed with multiple hole A on the cell wall of groove A; Described spool offers groove B away from a section of described spring, is evenly distributed with multiple hole B on the cell wall of groove B.
Entering the liquid of valve B or the pressure of gas is less, cannot Compress Spring time, liquid or gas cannot flow out from valve A by spool, cause the situation of cutout to occur.Occur in order to overcome this situation, said structure is set.Enter the liquid of valve B or gas and flow out again and flowed into valve A by hole A and groove A from hole B, avoid occurring cutout in situation that liquid or gas pressure are less.
Further, between described valve A and the surface of contact of valve B, be provided with seal ring.
The setting of seal ring, has improved airtight performance of the present utility model.
Further, be provided with at least one circulation groove on the outer surface of described spool, circulation groove extends to the other end of described spool from one end of described spool.
In the time that the pressure of liquid or gas is excessive, sealing inclined-plane A and seal inclined-plane B and contact, plays the effect of current limliting, and liquid or gas cannot be passed through.But this can cause cutout, makes instability of flow.In order to overcome this problem, circulation groove is set, making to seal when inclined-plane A contacts with sealing inclined-plane B still has partially liq or gas to enter valve A by valve B, avoids flow wide fluctuations.
In sum, advantage of the present utility model and beneficial effect are:
1. the utility model adopts the elasticity of spring to realize the control of pressure maximum and the reset of spool, make the control of pressure maximum and the reset of spool no longer rely on the weight of spool self, thereby make the utility model can be with free position setting, and needn't as existing flow-limiting valve, can only vertically arrange;
2. position limiting convex ring B is set, can realizes the effective location to spool;
3. groove A, hole A, groove B and hole B are set, avoid occurring in situation that liquid or gas pressure are less cutout;
4. seal ring is set, has improved airtight performance of the present utility model;
5. circulation groove is set, and making to seal when inclined-plane A contacts with sealing inclined-plane B still has partially liq or gas to enter valve A by valve B, avoids flow wide fluctuations.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present utility model, will be briefly described describing the required accompanying drawing of using in the utility model embodiment below.Apparent, the accompanying drawing in the following describes is only some embodiments that record in the utility model, for a person skilled in the art, in the situation that not paying creative work, can also, according to accompanying drawing below, obtain other accompanying drawing.
Fig. 1 is the structural representation of traditional flow-limiting valve;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of spool;
Wherein, the component title that reference character is corresponding is as follows:
1-valve A, 2-valve B, 3-spring, 4-spool, 5-seal ring, 6-circulation groove, 7-valve body, 8-outlet connection, 9-steel ball, 101-runner A, 102-position limiting convex ring A, 103-seals inclined-plane A, 201-runner B, 202-position limiting convex ring B, 401-seals inclined-plane B, 402-groove A, 403-hole A, 404-groove B, 405-hole B.
Embodiment
In order to make those skilled in the art understand better the utility model, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out to clear, complete description.Apparent, embodiment described below is only the part in the utility model embodiment, rather than all.The embodiment who records based on the utility model, other all embodiments that those skilled in the art obtain in the situation that not paying creative work, all in the scope of the utility model protection.
Embodiment 1:
As shown in Figure 2, a kind of flow-limiting valve, comprises valve A 1 and valve B 2, offers runner A101 in valve A 1, offers runner B201 in valve B 2, and valve B 2 is placed on valve A 1, and runner A101 is communicated with runner B201, is provided with position limiting convex ring A102 in runner A101; Also comprise spring 3 and spool 4, spring 3 is arranged in runner A101, and spool 4 is arranged in runner B201, and one end of spring 3 is connected with position limiting convex ring A102, and the other end of spring 3 is connected with spool 4; Valve A 1 is positioned at the end, one end of valve B 2 inside for sealing inclined-plane A103, is arranged at the sealing inclined-plane B401 that inclined-plane A103 is corresponding on spool 4.
The present embodiment is in when work, and liquid or gas enter from valve B 2, and promotes spool 4 spring 3 is compressed, when liquid or gas pressure are when excessive, sealing inclined-plane A103 contacts with sealing inclined-plane B401, and liquid or gas cannot be passed through, thereby realizes the object of current limliting in the time that pressure is excessive.
The control that the present embodiment is mainly to adopt spring 3 to realize pressure maximum and the reset of spool 4.
Embodiment 2:
As shown in Figure 2, the present embodiment, on embodiment 1 basis, offers position limiting convex ring B202 in described runner B201, and described spring 3 is pressed in described spool 4 on position limiting convex ring B202.
Position limiting convex ring B202 can realize the effective location to spool 4 in the time that spring 3 is not compressed.
Embodiment 3:
As shown in Figure 2, the present embodiment is on embodiment 2 basis, and described spool 4 offers groove A402 with one end that described spring 3 is connected, and is evenly distributed with multiple hole A403 on the cell wall of groove A402; Described spool 4 offers groove B404 away from a section of described spring 3, is evenly distributed with multiple hole B405 on the cell wall of groove B404.
Entering the liquid of valve B 2 or the pressure of gas is less, it is upper that spool 4 is withstood on position limiting convex ring B202, cannot Compress Spring 3, and liquid or gas cannot flow out from valve A 1 by spool 4, cause the situation of cutout to occur.Occur in order to overcome this situation, said structure is set.Enter the liquid of valve B 2 or gas and flow out again and flowed into valve A 1 by hole A403 and groove A402 from hole B405, avoid occurring cutout in situation that liquid or gas pressure are less.
In the time that sealing inclined-plane A103 contacts with sealing inclined-plane B401, the position that porose A403 is set on spool 4 is inserted in valve A 1, and therefore, liquid or gas no longer flow out through via hole A403.
Embodiment 4:
As shown in Figure 2, the present embodiment, on above-mentioned any one embodiment's basis, is provided with seal ring 5 between described valve A 1 and the surface of contact of valve B 2.
Embodiment 5:
As shown in Figure 3, the present embodiment, on above-mentioned any one embodiment's basis, is provided with at least one circulation groove 6 on the outer surface of described spool 4, and circulation groove 6 extends to the other end of described spool 4 from one end of described spool 4.
In the time that the pressure of liquid or gas is excessive, sealing inclined-plane A103 and seal inclined-plane B401 and contact, plays the effect of current limliting, and liquid or gas cannot be passed through.But this can cause cutout, makes instability of flow.In order to overcome this problem, circulation groove 6 is set, making to seal when inclined-plane A103 contacts with sealing inclined-plane B401 still has partially liq or gas to enter valve A 1 by valve B 2, avoids flow wide fluctuations.
As mentioned above, just can realize preferably the utility model.
Claims (5)
1. a flow-limiting valve, is characterized in that:
Comprise valve A (1) and valve B (2), valve A offers runner A(101 in (1)), valve B offers runner B(201 in (2)), valve B (2) is placed on valve A (1), runner A(101) with runner B(201) be communicated with runner A(101) and in be provided with position limiting convex ring A(102);
Also comprise spring (3) and spool (4), spring (3) is arranged at runner A(101) in, spool (4) is arranged at runner B(201) in, one end of spring (3) and position limiting convex ring A(102) be connected, the other end of spring (3) is connected with spool (4);
Valve A (1) is positioned at the inner end, one end of valve B (2) for sealing inclined-plane A(103), spool is arranged at inclined-plane A(103 on (4)) corresponding sealing inclined-plane B(401).
2. a kind of flow-limiting valve according to claim 1, is characterized in that:
Described runner B(201) in offer position limiting convex ring B(202), described spool (4) is pressed in position limiting convex ring B(202 by described spring (3)) on.
3. a kind of flow-limiting valve according to claim 2, is characterized in that:
Described spool (4) offers groove A(402 with one end that described spring (3) is connected), groove A(402) cell wall on be evenly distributed with multiple hole A(403);
Described spool (4) offers groove B(404 away from a section of described spring (3)), groove B(404) cell wall on be evenly distributed with multiple hole B(405).
4. a kind of flow-limiting valve according to claim 1, is characterized in that:
Between the surface of contact of described valve A (1) and valve B (2), be provided with seal ring (5).
5. according to a kind of flow-limiting valve described in any one in claim 1 ~ 4, it is characterized in that:
On the outer surface of described spool (4), be provided with at least one circulation groove (6), circulation groove (6) extends to the other end of described spool (4) from one end of described spool (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064711.0U CN203686288U (en) | 2014-02-14 | 2014-02-14 | Flow-limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064711.0U CN203686288U (en) | 2014-02-14 | 2014-02-14 | Flow-limiting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686288U true CN203686288U (en) | 2014-07-02 |
Family
ID=51008188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420064711.0U Expired - Fee Related CN203686288U (en) | 2014-02-14 | 2014-02-14 | Flow-limiting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686288U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847938A (en) * | 2015-05-18 | 2015-08-19 | 苏州赛智达智能科技有限公司 | Low temperature overflowing flow-limiting valve for liquefied natural gas bottles |
| CN105221771A (en) * | 2015-10-29 | 2016-01-06 | 江南工业集团有限公司 | A kind of low temperature cut-off flow-limiting valve |
| CN105299975A (en) * | 2015-11-26 | 2016-02-03 | 台州市中奥特种设备检测技术服务有限公司 | Flow limiting device of defrosting pipeline of refrigerator |
| CN110360359A (en) * | 2019-08-09 | 2019-10-22 | 张家港富瑞阀门有限公司 | A kind of high pressure hydrogen excess flow valve |
-
2014
- 2014-02-14 CN CN201420064711.0U patent/CN203686288U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847938A (en) * | 2015-05-18 | 2015-08-19 | 苏州赛智达智能科技有限公司 | Low temperature overflowing flow-limiting valve for liquefied natural gas bottles |
| CN105221771A (en) * | 2015-10-29 | 2016-01-06 | 江南工业集团有限公司 | A kind of low temperature cut-off flow-limiting valve |
| CN105299975A (en) * | 2015-11-26 | 2016-02-03 | 台州市中奥特种设备检测技术服务有限公司 | Flow limiting device of defrosting pipeline of refrigerator |
| CN105299975B (en) * | 2015-11-26 | 2018-03-06 | 台州市中奥特种设备检测技术服务有限公司 | A kind of current-limiting apparatus of refrigerator defrosting pipeline |
| CN110360359A (en) * | 2019-08-09 | 2019-10-22 | 张家港富瑞阀门有限公司 | A kind of high pressure hydrogen excess flow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |