CN202746680U - Stop valve of self-priming pump - Google Patents
Stop valve of self-priming pump Download PDFInfo
- Publication number
- CN202746680U CN202746680U CN 201220437426 CN201220437426U CN202746680U CN 202746680 U CN202746680 U CN 202746680U CN 201220437426 CN201220437426 CN 201220437426 CN 201220437426 U CN201220437426 U CN 201220437426U CN 202746680 U CN202746680 U CN 202746680U
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- valve
- self
- stop valve
- priming pump
- fluid stopping
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Abstract
The utility model belongs to the technical field of self-priming pumps, and particularly relates to a stop valve of a self-priming pump. The stop valve solves the technical problems of the prior art such as reasonable design and the like. The self-priming pump comprises a pump body; a water inlet channel is arranged on the pump body; the stop valve is characterized by comprising a stop valve body and a stop valve base, an water outlet structure capable of enabling a water flow to enter into the pump body via the water inlet channel, and the stop valve body and the stop valve base are movably connected, and the stop valve body can automatically block at the water outlet of the water inlet channel when the water inlet channel stops supplying water to the pump body. Compared with the prior art, the stop valve of the self-priming pump has the advantages of reasonable design, simple structure, good leakage stopping effect and long service life.
Description
Technical field
The utility model belongs to the self-priming pump technical field, especially relates to a kind of flow-stop valve of self-priming pump.
Background technique
Self-priming pump has certain suction capacity, can make water pump not inhale convenient starting in the situation of water, and keep normal operation.Self-priming pump is mainly used in chemical liquid, circulation or conveying processing procedure, such as: electroplate chemical industry, leather, dyeing and finishing, waste water, waste gas treatment etc.In existing self-priming pump, the intake tunnel waterexit end of the pump housing is provided with safety check, the structure of this valve is capping, wears axle on the capping, sleeve spring on the axle, when intake tunnel is intake in the pump housing, capping is stressed, and spring is compressed, and water just enters in the pump housing, intake tunnel stops to intake in the pump housing, by spring with the capping shutoff in the intake tunnel waterexit end; But the fluid stopping effect of this safety check is relatively poor, can shorten like this working life of pump.
The problem that exists in order to solve prior art, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of self-priming pump safety check [application number: 99243945.0], and it includes check valve body, Boilor check valve seat and glass marble; Glass marble is landed on the interior inclined-plane of Boilor check valve seat, and the intracavity diameter of check valve body is greater than the external diameter of glass marble, but glass marble flexible motion in inner chamber.
Such scheme has improved prior art to a certain extent, yet such scheme is realized shutoff and conducting by glass marble, and can satisfy usage requirement to a certain extent, but there is following shortcoming at least in this scheme: 1, leakage-proof effect is relatively poor; 2, water inlet is by the check valve body water inlet, and non-return is to realize complex structure by glass marble; 3, working life is short.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of reasonable in design, simple in structure, and leakage-proof effect is good, the flow-stop valve of the self-priming pump of long service life.
For achieving the above object, the utility model has adopted following technical proposal: the flow-stop valve of this self-priming pump, self-priming pump comprises the pump housing, the pump housing is provided with intake tunnel, it is characterized in that, this flow-stop valve comprises fluid stopping valve body and fluid stopping valve seat, described fluid stopping valve body is provided with and can makes current by intake tunnel and enter water flowing out structure in the pump housing, and described fluid stopping valve body and fluid stopping valve seat are movably connected and when intake tunnel stops in the pump housing water inlet on the water outlet of described flow-stop valve physical efficiency automatic plugging at intake tunnel.In the situation that intake tunnel is intake to the pump housing continuously, the fluid stopping valve body is delivered to water in the pump housing by water flowing out structure; Stop in the situation of pump housing water inlet at intake tunnel, the fluid stopping valve body prevents that with regard to the water outlet of automatic plugging intake tunnel current from refluxing, and prolonged the working life of this self-priming pump.
In the flow-stop valve of above-mentioned self-priming pump, described fluid stopping valve body comprises the tubular spool that is arranged in the intake tunnel, be provided with valve gap at spool, described valve gap external diameter is greater than the bore of intake tunnel water outlet, be provided with valve shaft at valve gap, be movably connected by guide structure between described valve shaft and the fluid stopping valve seat.Flexibly and fluid stopping effective.
In the flow-stop valve of above-mentioned self-priming pump, described guide structure comprises the tubular joint that is arranged on the fluid stopping valve seat, and valve shaft is inserted in the joint and can moves up and down along joint.
In the flow-stop valve of above-mentioned self-priming pump, described water flowing out structure comprises and is arranged on spool away from some effluent troughs of valve shaft one end that described effluent trough evenly distributes along the spool circumferencial direction.Make things convenient for water outlet.
In the flow-stop valve of above-mentioned self-priming pump, be provided with seal ring between described valve gap and the intake tunnel, described seal ring external diameter is greater than the bore of intake tunnel water outlet, and described seal ring is connected on the valve gap by position structure.Good sealing effect has further been optimized the fluid stopping effect.
In the flow-stop valve of above-mentioned self-priming pump, described position structure comprises the annular groove that is opened on the valve gap.Fixed.
In the flow-stop valve of above-mentioned self-priming pump, described valve shaft is provided with cylindrical positioning boss near valve gap one end, and the external diameter of positioning boss center line and valve shaft central lines and positioning boss is greater than the internal diameter of joint.Can prevent joint bump valve gap.
In the flow-stop valve of above-mentioned self-priming pump, described valve gap is provided with some projections, and described projection is around the periphery that is arranged on positioning boss.
In the flow-stop valve of above-mentioned self-priming pump, described fluid stopping valve seat is connected by removable structure and the pump housing.Removable structure can be worm structure.
Compared with prior art, the advantage of the flow-stop valve of this self-priming pump is: 1, reasonable in design, simple in structure.2, in the situation that intake tunnel is intake to the pump housing continuously, the fluid stopping valve body is delivered to water in the pump housing by water flowing out structure; Stop in the situation of pump housing water inlet at intake tunnel, the fluid stopping valve body prevents that with regard to the waterexit end of automatic plugging intake tunnel current from refluxing, and prolonged the working life of this self-priming pump.3, fluid stopping is effective.4, long service life.
Description of drawings
Fig. 1 is the structural representation that the utility model provides.
Fig. 2 is the structural representation of the fluid stopping valve body that provides of the utility model.
Among the figure, pump housing 1a, intake tunnel 1b, fluid stopping valve body 2, fluid stopping valve seat 3, spool 21, valve gap 22, valve shaft 23, joint 31, effluent trough 41, seal ring 5, annular groove 22a, positioning boss 24, projection 25, O-ring seal 6.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Such as Fig. 1, shown in 2, the flow-stop valve of this self-priming pump, self-priming pump comprises pump housing 1a, pump housing 1a is provided with intake tunnel 1b, this flow-stop valve comprises fluid stopping valve body 2 and fluid stopping valve seat 3, fluid stopping valve seat 3 is connected by worm structure and pump housing 1a, in order to improve tightness, between fluid stopping valve seat 3 and pump housing 1a, O-ring seal 6 can be set, be provided with at fluid stopping valve body 2 and can make current by intake tunnel 1b and to enter water flowing out structure in the pump housing 1a, fluid stopping valve body 2 and fluid stopping valve seat 3 be movably connected and when intake tunnel 1b stops in the pump housing 1a water inlet described fluid stopping valve body 2 can automatic pluggings on the water outlet of intake tunnel 1b.
Concrete, as shown in Figure 1, 2, fluid stopping valve body 2 comprises the tubular spool 21 that is arranged in the intake tunnel 1b, be provided with valve gap 22 at spool 21, fall in the intake tunnel 1b in order to prevent valve gap 22, these valve gap 22 external diameters are provided with valve shaft 23 greater than the bore of intake tunnel 1b water outlet at valve gap 22, are movably connected by guide structure between valve shaft 23 and the fluid stopping valve seat 3.Further, this guide structure comprises the tubular joint 31 that is arranged on the fluid stopping valve seat 3, and valve shaft 23 is inserted in the joint 31 and can moves up and down along joint 31.Above-mentioned water flowing out structure comprises and is arranged on spool 21 away from some effluent troughs 41 of valve shaft 23 1 ends that effluent trough 41 evenly distributes along spool 21 circumferencial directions.
More particularly, in order to improve the fluid stopping leak preventing effect, as shown in Figure 1, between valve gap 22 and intake tunnel 1b, be provided with seal ring 5, described seal ring 5 external diameters are greater than the bore of intake tunnel 1b water outlet, and for firm fixed seal ring 5, seal ring 5 is connected on the valve gap 22 by position structure.This position structure comprises the annular groove 22a that is opened on the valve gap 22.Further, in order to prevent joint 31 bump valve gaps 22, be provided with cylindrical positioning boss 24 at valve shaft 23 near valve gap 22 1 ends, the external diameter of positioning boss 24 center lines and valve shaft 23 central lines and positioning boss 24 is greater than the internal diameter of joint 31.Be provided with some protrudingly 25 at valve gap 22, this projection 25 is around the periphery that is arranged on positioning boss 24.
In the present embodiment, when intake tunnel 1b stops to intake in pump housing 1a, but valve gap 22 and seal ring 5 shutoff can prevent that the current refluence in the pump housing 1a is back in the intake tunnel 1b on the water outlet of intake tunnel 1b; In addition, set out tank 41 and can make structure simpler, further optimized prior art.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as pump housing 1a, intake tunnel 1b, fluid stopping valve body 2, fluid stopping valve seat 3, spool 21, valve gap 22, valve shaft 23, joint 31, effluent trough 41, seal ring 5, annular groove 22a, positioning boss 24, projection 25, O-ring seal 6, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. the flow-stop valve of a self-priming pump, self-priming pump comprises the pump housing (1a), the pump housing (1a) is provided with intake tunnel (1b), it is characterized in that, this flow-stop valve comprises fluid stopping valve body (2) and fluid stopping valve seat (3), described fluid stopping valve body (2) is provided with and can makes current pass through intake tunnel (1b) and enter water flowing out structure in the pump housing (1a), described fluid stopping valve body (2) and fluid stopping valve seat (3) be movably connected and when intake tunnel (1b) stops to intake in the pump housing (1a) described fluid stopping valve body (2) energy automatic plugging on the water outlet of intake tunnel (1b).
2. the flow-stop valve of self-priming pump according to claim 1, it is characterized in that, described fluid stopping valve body (2) comprises the tubular spool (21) that is arranged in the intake tunnel (1b), be provided with valve gap (22) at spool (21), described valve gap (22) external diameter is greater than the bore of intake tunnel (1b) water outlet, be provided with valve shaft (23) at valve gap (22), be movably connected by guide structure between described valve shaft (23) and the fluid stopping valve seat (3).
3. the flow-stop valve of self-priming pump according to claim 2, it is characterized in that, described guide structure comprises the tubular joint (31) that is arranged on the fluid stopping valve seat (3), and valve shaft (23) is inserted in the joint (31) and can moves up and down along joint (31).
4. the flow-stop valve of self-priming pump according to claim 2, it is characterized in that, described water flowing out structure comprises and is arranged on spool (21) away from some effluent troughs (41) of valve shaft (23) one ends that described effluent trough (41) evenly distributes along spool (21) circumferencial direction.
5. the flow-stop valve of the described self-priming pump of any one according to claim 2-4, it is characterized in that, be provided with seal ring (5) between described valve gap (22) and the intake tunnel (1b), described seal ring (5) external diameter is greater than the bore of intake tunnel (1b) water outlet, and described seal ring (5) is connected on the valve gap (22) by position structure.
6. the flow-stop valve of self-priming pump according to claim 5 is characterized in that, described position structure comprises the annular groove (22a) that is opened on the valve gap (22).
7. the flow-stop valve of self-priming pump according to claim 6, it is characterized in that, described valve shaft (23) is provided with cylindrical positioning boss (24) near valve gap (22) one ends, and the external diameter of positioning boss (24) center line and valve shaft (23) central lines and positioning boss (24) is greater than the internal diameter of joint (31).
8. the flow-stop valve of self-priming pump according to claim 7 is characterized in that, described valve gap (22) is provided with some projections (25), and described projection (25) is around the periphery that is arranged on positioning boss (24).
9. the flow-stop valve of self-priming pump according to claim 1 is characterized in that, described fluid stopping valve seat (3) is connected by removable structure and the pump housing (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220437426 CN202746680U (en) | 2012-08-30 | 2012-08-30 | Stop valve of self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220437426 CN202746680U (en) | 2012-08-30 | 2012-08-30 | Stop valve of self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746680U true CN202746680U (en) | 2013-02-20 |
Family
ID=47706079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220437426 Expired - Fee Related CN202746680U (en) | 2012-08-30 | 2012-08-30 | Stop valve of self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746680U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435640A (en) * | 2016-04-01 | 2017-12-05 | 欧亚瑟有限公司 | Water pump with check-valves |
| CN107884542A (en) * | 2017-12-24 | 2018-04-06 | 洛阳明创矿山冶金设备有限公司 | A kind of water process is used for the water-locator with water quality detection |
| CN107975606A (en) * | 2017-11-27 | 2018-05-01 | 高益松 | The connection valve of foam gun |
| RU2667862C2 (en) * | 2015-10-15 | 2018-09-24 | Грундфос Холдинг А/С | Non-return valve |
| CN108953700A (en) * | 2018-09-03 | 2018-12-07 | 黄艺强 | A kind of pipe internal pressure automatic flow-stop device and its application |
| CN108953700B (en) * | 2018-09-03 | 2024-05-17 | 黄艺强 | Automatic flow stopping device for pipe internal pressure and application thereof |
-
2012
- 2012-08-30 CN CN 201220437426 patent/CN202746680U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2667862C2 (en) * | 2015-10-15 | 2018-09-24 | Грундфос Холдинг А/С | Non-return valve |
| US10533674B2 (en) | 2015-10-15 | 2020-01-14 | Grundfos Holding A/S | Non-return valve for a water supply system having a sealing body movably connected to a holder's receiver opening by one or more limbs and lugs |
| CN107435640A (en) * | 2016-04-01 | 2017-12-05 | 欧亚瑟有限公司 | Water pump with check-valves |
| CN107435640B (en) * | 2016-04-01 | 2020-06-09 | 欧亚瑟有限公司 | Water pump with check valve |
| CN107975606A (en) * | 2017-11-27 | 2018-05-01 | 高益松 | The connection valve of foam gun |
| CN107884542A (en) * | 2017-12-24 | 2018-04-06 | 洛阳明创矿山冶金设备有限公司 | A kind of water process is used for the water-locator with water quality detection |
| CN108953700A (en) * | 2018-09-03 | 2018-12-07 | 黄艺强 | A kind of pipe internal pressure automatic flow-stop device and its application |
| CN108953700B (en) * | 2018-09-03 | 2024-05-17 | 黄艺强 | Automatic flow stopping device for pipe internal pressure and application thereof |
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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: 20130220 Termination date: 20170830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |