CN204201204U - A kind of self-operated flow control valve - Google Patents
A kind of self-operated flow control valve Download PDFInfo
- Publication number
- CN204201204U CN204201204U CN201420506503.1U CN201420506503U CN204201204U CN 204201204 U CN204201204 U CN 204201204U CN 201420506503 U CN201420506503 U CN 201420506503U CN 204201204 U CN204201204 U CN 204201204U
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- China
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- valve body
- spool
- self
- flap
- flow control
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Abstract
The utility model provides a kind of self-operated flow control valve, comprise bonnet, the bottom flange matched with bonnet, is provided with the valve body of water intake, water outlet, and described valve body has with homonymy relevant position on bottom flange the feedback hole being communicated with water outlet and diaphragm seal chamber; Described inlet end is provided with the filter screen that bolt is connected with valve body; Arrange spool in described valve body, one end of spool is inserted in the counterbore of flap, and the other end is fixedly connected with Regulation spring, and the other end of Regulation spring is fixedly connected with bottom flange; Sleeve is provided with between the cylindricality junction plane of described spool and valve body; Have through hole in the middle part of described spool, its upper edge, along being evenly provided with curve bath, makes spool top be divided into curve bath and arc boss two-part, wherein curve bath layout alternate with arc boss.Spool of the present utility model adopts curve bath layout alternate with arc boss, and its structure is simple, is convenient to processing; The setting of filter screen effectively can solve the blockage problem of feedback hole.
Description
Technical field
The utility model belongs to flow control valve field, especially relates to a kind of self-operated flow control valve.
Background technique
Self-operated flow control valve is a bivalve combination, is namely made up of a manual modulation valve and automatic balancing valve, is used for respectively regulating setting flow and keeping constant flow.Wherein automatic balancing valve mainly drives the throttling of floating valve plug, pressure regulation by pressure feedback by the effect of Regulation spring, diaphragm, keeps constant flow constant.Pressure feedback regulates mainly through the feedback hole be positioned near water outlet, through using feedback hole neighbouring easily heap scaliness or other sedimentss for a long time, causing feedback hole to block, can not realize the automatic adjustment of flow; In addition the complex structure of floating valve, not easily processes.
Model utility content
Problem to be solved in the utility model is to provide a kind of self-operated flow control valve, improves feedback hole blockage problem, improves the structure of floating valve, so that processing.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of self-operated flow control valve, comprise bonnet, the bottom flange matched with bonnet, be provided with the valve body of water intake, water outlet, the intermediate throughholes place of described bonnet is provided with flap, and the top of flap is provided with the rotatable handle be fixedly connected with it; Described valve body has with homonymy relevant position on bottom flange the feedback hole being communicated with water outlet and diaphragm seal chamber; Described spool lower end is provided with diaphragm, and diaphragm two ends are fixedly connected between valve body and the junction plane of bottom flange by screw; Arrange spool in described valve body, one end of spool is inserted in the counterbore of flap, and the other end is fixedly connected with Regulation spring, and the other end of Regulation spring is fixedly connected with bottom flange; Sleeve is provided with between the cylindricality junction plane of described spool and valve body; Have through hole in the middle part of described spool, its upper edge, along being evenly provided with curve bath, makes spool top be divided into curve bath and arc boss two-part, wherein curve bath layout alternate with arc boss.
Further, described flap lower end plane is oblong section, and the minor axis end points of tangent plane flushes with valve body upper wall surface.
Further, described upper rotatable handle is provided with scale, and with the lower end oblong section of flap relative to the position one_to_one corresponding residing for valve body upper wall surface.
Further, spring is provided with between the counterbore base of described flap and spool.
Further, described inlet end is provided with the filter screen that bolt is connected with valve body, filters the current by valve body, prevents feedback hole from blocking.Preferably, for preventing leaking, filter screen intermediate portion is reticular structure, and outer end is entity structure.
Further, the valve body top of described water inlet is given prominence to position and is provided with the flowmeter be bolted with it, and the automatic control tegulatingdevice of auxiliary Self-operated flow valve carries out the adjustment of flow.
The advantage that the utility model has and good effect are: spool of the present utility model adopts curve bath layout alternate with arc boss, and its structure is simple, are convenient to processing; The setting of filter screen effectively can solve the blockage problem of feedback hole.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is valve core structure schematic diagram of the present utility model;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is filter screen structure schematic diagram of the present utility model.
In figure: 1-rotatable handle, 2-bonnet, 3-valve body, 4-water outlet, 5-feedback hole, 6-sleeve, 7-bottom flange, 8-Regulation spring, 9-spool, 10-diaphragm, 11-filter screen, 12-water intake, 13-flowmeter, 14-flap, 15-spring, 16-arc boss, 17-curve bath.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
A kind of self-operated flow control valve as shown in Figures 1 to 4, comprise bonnet 2, the bottom flange 7 matched with bonnet 2, be provided with the valve body of water intake 12, water outlet 4, the intermediate throughholes place of described bonnet 2 is provided with flap 14, and the top of flap 14 is provided with the rotatable handle 1 be fixedly connected with it; Described valve body 3 and homonymy relevant position on bottom flange 7 have the feedback hole 5 being communicated with water outlet 4 and diaphragm seal chamber; Described spool 9 lower end is provided with diaphragm 10, and diaphragm 10 two ends are fixedly connected between the junction plane of valve body 3 and bottom flange 7 by screw; Arrange spool 9 in described valve body 3, one end of spool 9 is inserted in the counterbore of flap 14, and the other end is fixedly connected with Regulation spring 8, and the other end of Regulation spring 8 is fixedly connected with bottom flange 7; Sleeve 6 is provided with between described spool 9 and the cylindricality junction plane of valve body 3; Have through hole in the middle part of described spool 9, its upper edge, along being evenly provided with curve bath 17, makes spool 9 top be divided into curve bath 17 and arc boss 16 two-part, wherein curve bath 17 layout alternate with arc boss 16.
Described flap 14 lower end plane is oblong section, and the minor axis end points of tangent plane flushes with valve body 3 upper wall surface.
Described upper rotatable handle 1 is provided with scale, and with the lower end oblong section of flap 14 relative to the position one_to_one corresponding residing for valve body 3 upper wall surface.
Spring 15 is provided with between the counterbore base of described flap 14 and spool 9.
Described water intake 12 end is provided with the filter screen 11 that bolt is connected with valve body 3, filters, prevent feedback hole from blocking to the current by valve body.Preferably, for preventing leaking, filter screen intermediate portion is reticular structure, and outer end is entity structure.
Valve body 3 top at described water intake 4 place is given prominence to position and is provided with the flowmeter 13 be bolted with it, and the automatic control tegulatingdevice of auxiliary Self-operated flow valve carries out the adjustment of flow.
Working procedure of the present utility model, first according to display and the actual flow set requirement of flowmeter 13, adjustment rotatable handle 1 sets flow.Current arrive in the process of water outlet 12 pressure area that can produce three by spool 9, flap 14, be respectively P1, P2, P3; When the pressure P 3 of water outlet 12 becomes large, current under P3 pressure arrive diaphragm seal chamber by feedback hole 5, promotion Regulation spring 8 one reacts on diaphragm 10 and is with movable valve plug 9 to move up, spring 15 shrinks, spool 9 upper end enters in the counterbore of flap 14, its curve bath 17 Opening length diminishes, and negotiability reduces, and realizes new circulation balance.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (6)
1. a self-operated flow control valve, it is characterized in that: comprise bonnet (2), the bottom flange (7) matched with bonnet (2), be provided with the valve body of water intake (12), water outlet (4), the intermediate throughholes place of described bonnet (2) is provided with flap (14), and the top of flap (14) is provided with the rotatable handle (1) be fixedly connected with it; Described valve body (3) and the upper homonymy relevant position of bottom flange (7) have the feedback hole (5) being communicated with water outlet (4) and diaphragm seal chamber; Spool (9) lower end is provided with diaphragm (10), and diaphragm (10) two ends are fixedly connected between the junction plane of valve body (3) and bottom flange (7) by screw; Spool (9) is set in described valve body (3), one end of spool (9) is inserted in the counterbore of flap (14), the other end is fixedly connected with Regulation spring (8), and the other end of Regulation spring (8) is fixedly connected with bottom flange (7); Sleeve (6) is provided with between the cylindricality junction plane of described spool (9) and valve body (3); Described spool (9) middle part has through hole, and its upper edge is along being evenly provided with curve bath (17).
2. a kind of self-operated flow control valve according to claim 1, is characterized in that: described flap (14) lower end plane is oblong section, and the minor axis end points of tangent plane flushes with valve body (3) upper wall surface.
3. a kind of self-operated flow control valve according to claim 1, it is characterized in that: (1) is provided with scale to described rotatable handle, and with the lower end oblong section of flap (14) relative to the position one_to_one corresponding residing for valve body (3) upper wall surface.
4. a kind of self-operated flow control valve according to claim 1, is characterized in that: be provided with spring (15) between the counterbore base of described flap (14) and spool (9).
5. a kind of self-operated flow control valve according to claim 1, is characterized in that: described water intake (12) end is provided with the filter screen (11) that bolt is connected with valve body (3).
6. a kind of self-operated flow control valve according to claim 1, is characterized in that: valve body (3) top at described water intake (4) place is given prominence to position and is provided with the flowmeter (13) be bolted with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506503.1U CN204201204U (en) | 2014-09-03 | 2014-09-03 | A kind of self-operated flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420506503.1U CN204201204U (en) | 2014-09-03 | 2014-09-03 | A kind of self-operated flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201204U true CN204201204U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420506503.1U Active CN204201204U (en) | 2014-09-03 | 2014-09-03 | A kind of self-operated flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594231A (en) * | 2019-08-07 | 2019-12-20 | 九江七所精密机电科技有限公司 | Internal feedback self-sealing packaging clamping device |
-
2014
- 2014-09-03 CN CN201420506503.1U patent/CN204201204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594231A (en) * | 2019-08-07 | 2019-12-20 | 九江七所精密机电科技有限公司 | Internal feedback self-sealing packaging clamping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 301802 No. 3 Road, nine yuan industrial park, Da Bai street, Baodi District, Tianjin Patentee after: Tianjin Carls valve Limited by Share Ltd Address before: 301802 No. three road, nine yuan industrial park, Baodi District, Tianjin. Patentee before: TIANJIN K.R.S VALVE CO., LTD. |