CN203213203U - Multifunctional anti-negative pressure valve - Google Patents
Multifunctional anti-negative pressure valve Download PDFInfo
- Publication number
- CN203213203U CN203213203U CN 201320215572 CN201320215572U CN203213203U CN 203213203 U CN203213203 U CN 203213203U CN 201320215572 CN201320215572 CN 201320215572 CN 201320215572 U CN201320215572 U CN 201320215572U CN 203213203 U CN203213203 U CN 203213203U
- Authority
- CN
- China
- Prior art keywords
- erosion control
- guide
- leading truck
- guide cylinder
- negative pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to a multifunctional anti-negative pressure valve, belongs to the field of valve equipment and particularly relates to a multifunctional valve preventing generation of negative pressure in water supply equipment. The upper portion of a guide cylinder (3) is fixed to a top cover (8) of a flow stabilizing tank through upper and lower flanges (12 and 11) which are superposed. The lower and middle part of the guide cylinder (3) extends into the flow stabilizing tank. A microswitch (17) is disposed in the inner upper portion of the guide cylinder (3). A float ball (4) is mounted in the middle of the guide cylinder (3) through an upper fixing guide device. A buffer device mounted at the top of the float ball (4) passes through the upper fixing guide device to be in contact connection with the microswitch (17). A guide rod (2) is mounted at the bottom of the float ball (4), and a lower fixing guide device is movably connected to the bottom of the guide rod (2). The multifunctional anti-negative pressure valve is closed and opened in an elastically buffered contact manner; a multi-layer guide structure and a resisting structure are added, and accordingly water spray caused by excessively fast waterflow is avoided and safe operation of equipment is guaranteed.
Description
Technical field
Multi-functional anti-negative pressure valve belongs to the valve arrangement field, is specifically related to a kind of for the multi-functional valve that prevents negative pressure on the supply equipment.
Background technology
The structure overwhelming majority of common non-negative pressure valve adopts the installation site of ball float to be arranged on the outside of current stabilization jar on the market, and the as easy as rolling off a log meeting of this kind structure causes the water spray phenomenon, this is because ball float is being arranged on current stabilization tank outside, after the air of tank interior all racks up, the air pressure fluctuation that tank interior occurs just all focuses in the middle of the valve body of non-negative pressure valve entirely, because the fluctuation of the blast in the current stabilization jar is too big too soon usually, the floating ball diameter that adds common employing is less, the blast phenomenon of will spraying water before ball float is not also closed, there is bigger hidden danger in safety.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of reasonable in design, anti-negative pressure effect significantly, prevent the multi-functional anti-negative pressure valve of spraying water.
The technical scheme that its technical problem that solves the utility model adopts is: this multi-functional anti-negative pressure valve, comprise guide cylinder and ball float, ball float is installed in guide cylinder inside, can in guide cylinder, move up and down, it is characterized in that: described guide cylinder top is by in the stack, lower flange is fixed on the current stabilization top ends of cans, the guide cylinder middle and lower part extend into current stabilization jar inside, the guide cylinder internal upper part is provided with microswitch, ball float is installed by last fixed guide in the middle part, the buffer that install at the ball float top passes fixed guide and is connected with the microswitch contact, guide peg, fixed guide under the movable connection in guide peg bottom are installed in the ball float bottom.Because the guide cylinder middle and lower part is installed in the internal upper part of current stabilization jar, when the water level in the current stabilization jar rises to the bottom of guide cylinder, portion of air enters guide cylinder and discharges from its top, can there be the top of current stabilization jar in another part air, along with the continuous rising of water level forms air pressure at current stabilization jar internal upper part, air pressure is being suppressed blast and the fluctuation that water level produces, and makes gas-water separation, this part residual air finally enters in the guide cylinder and discharges, and has avoided the water spray phenomenon.
The described fixed guide that goes up comprises erosion control leading truck, middle baffle plate and rubber seal from top to bottom in proper order, middle baffle plate level is installed in middle part in the guide cylinder, middle baffle plate upper fixed is installed the erosion control leading truck, bottom fixed installation rubber seal, and middle baffle plate center offers through hole.The setting of last erosion control leading truck had both prevented that the too fast air pressure that causes of current was too fast, and its centre bore also plays guide effect to the lifting of ball float.
The described erosion control leading truck of going up is the support that the cross section is a font, and the center offers the centre bore of allowing that buffer slides, and last erosion control leading truck border is provided with a plurality of last erosion control side openings.Last erosion control side opening leads to the current that enter the current stabilization jar, prevents that current from dashing very much, and flow velocity is too fast, and air pressure raises too fast.
Described buffer comprises buffer head, guide pipe and spring, and guide pipe top end opening, bottom are fixedly mounted on the top of ball float, and the buffer head cross section is the T font, and the buffer head bottom is sleeved in the guide pipe, in the bottom of buffer head spring is housed.By being used of buffer head and spring, both realized the unlatching of microswitch, also avoided the damage of microswitch.
Described fixed guide down is installed in the bottom of guide cylinder, comprise erosion control leading truck and inboard erosion control leading truck down under base plate, the outside, outside erosion control leading truck down all is the bottom that concave shape is installed in base plate with inboard erosion control leading truck down, and the erosion control leading truck is sleeved on the inboard outside of erosion control leading truck down under the outside.
Have a plurality of weep holes on the described base plate, erosion control leading truck and the inboard border of erosion control leading truck down are equipped with a plurality of erosion control gaging holes down under the outside, and the bottom of erosion control leading truck offers a plurality of erosion control bottom outlets down under the outside.
Described upper and lower flange outside is provided with protective cover, and the top of protective cover is provided with the warning indicating device, and the warning indicating device comprises power supply indicator, liquid level indicator lamp, pump indicator lamp and the alarm lamp by electric control gear control.When abnormal conditions take place, can handle timely and effectively.
Be matched in clearance between described ball float and the guide cylinder inwall.
Compared with prior art, the beneficial effect that has of the utility model is:
1, reasonable in design, avoid the water spray: adopt matched in clearance between ball float and the guide cylinder inwall, again because the guide cylinder middle and lower part is installed in the internal upper part of current stabilization jar, when the water level in the current stabilization jar rises to the bottom of guide cylinder, portion of air enters guide cylinder and discharges from its top, can there be the top of current stabilization jar in another part air, along with the continuous rising of water level forms air pressure at current stabilization jar internal upper part, air pressure is being suppressed blast and the fluctuation that water level produces, make gas-water separation, this part residual air finally enters in the guide cylinder and discharges, and has avoided the water spray phenomenon;
2, multilayer resistance, multilayer guide frame are set, guide frame is used for guaranteeing that ball float is according to the route lifting of setting, avoid ball float to rotate, guaranteed the stability of ball float motion, simultaneously the multilayer resistance structure has been carried out the multistep buffering to the flow velocity of current again, has further avoided the generation of the water spray phenomenon that causes because water velocity is too fast;
3, the Elastic Contact mode that adopts microswitch and buffer to cooperate had both realized the unlatching of microswitch, had also avoided the damage of microswitch;
4, set up the indicator lamp of warning and each operation, but the duty of Real Time Observation equipment also can be handled the solution potential safety hazard timely and effectively to the abnormal conditions that take place.
Description of drawings
Fig. 1 is the utility model structural front view schematic diagram.
Wherein: 1, the outside is erosion control leading truck 2 down, guide peg 3, guide cylinder 4, ball float 5, rubber seal 6, middle baffle plate 7, last erosion control leading truck 8, current stabilization top ends of cans 9, protective cover 10, bolt 11, lower flange 12, upper flange 13, power supply indicator 14, liquid level indicator lamp 15, pump indicator lamp 16, alarm lamp 17, microswitch 18, buffer head 19, guide pipe 20, last erosion control side opening 21, spring 22, base plate 23, following erosion control gaging hole 24, weep hole 25, following erosion control bottom outlet 26, inboard erosion control leading truck down.
The specific embodiment
Fig. 1 is most preferred embodiment of the present utility model, is described further below in conjunction with 1 pair of the utility model of accompanying drawing.
With reference to accompanying drawing 1: this multi-functional anti-negative pressure valve, comprise guide peg 2, guide cylinder 3 and ball float 4, ball float 4 is installed in guide cylinder 3 inside, can in guide cylinder 3, move up and down, keep matched in clearance between ball float 4 and guide cylinder 3 inwalls, guide cylinder 3 tops are by in the stack, lower flange 12,11 are fixed on current stabilization top ends of cans 8, on, lower flange 12, fixedly connected by bolt 10 between 11, guide cylinder 3 middle and lower parts extend into current stabilization jar inside, guide cylinder 3 internal upper parts are provided with microswitch 17, ball float 4 is installed by last fixed guide in the middle part, the buffer that install at ball float 4 tops passes fixed guide and is connected with microswitch 17 contacts, guide peg 2, fixed guide under the movable connection in guide peg 2 bottoms are installed in ball float 4 bottoms.
Last fixed guide order from top to bottom comprises erosion control leading truck 7, middle baffle plate 6 and rubber seal 5, middle baffle plate 6 levels are installed in middle part in the guide cylinder 3, middle baffle plate 6 upper fixed are installed erosion control leading truck 7, bottom fixed installation rubber seal 5, and middle baffle plate 6 centers offer through hole.Last erosion control leading truck 7 is the support of a font for the cross section, and the center offers the centre bore of allowing that buffer slides, last erosion control leading truck 7 borders be provided with a plurality of on erosion control side openings 20.
Buffer comprises buffer head 18, guide pipe 19 and spring 21, guide pipe 19 top end openings, bottom are fixedly mounted on the top of ball float 4, buffer head 18 cross sections are the T font, and buffer head 18 bottoms are sleeved in the guide pipe 19, in the bottom of buffer head 18 spring 21 are housed.
Following fixed guide is installed in the bottom of guide cylinder 3, comprise erosion control leading truck 1 and inboard erosion control leading truck 26 down under base plate 22, the outside, outside erosion control leading truck 1 down all is the bottom that concave shape is installed in base plate 22 with inboard erosion control leading truck 26 down, and erosion control leading truck 1 is sleeved on the inboard outside of erosion control leading truck 26 down under the outside.Have a plurality of weep holes 24 on the base plate 22, erosion control leading truck 1 and the inboard border of erosion control leading truck 26 down are equipped with a plurality of erosion control gaging holes 23 down under the outside, and the bottom of erosion control leading truck 1 offers a plurality of erosion control bottom outlets 25 down under the outside.
Upper and lower flange 12,11 outsides are provided with protective cover 9, and the top of protective cover 9 is provided with the warning indicating device, and the warning indicating device comprises power supply indicator 13, liquid level indicator lamp 14, pump indicator lamp 15 and the alarm lamp 16 by electric control gear control.
The course of work is as follows: when work, in the municipal tap water enters the current stabilization jar, water level in the current stabilization jar constantly raises, original portion of air is along with the rising of water level enters in the guide cylinder 3 in the current stabilization jar, via base plate 22, ball float 4, rubber seal 5, middle baffle plate 6 is finally discharged from guide cylinder 3 tops, when water level rises to the position of ball float 4 bottoms, most of air in the current stabilization jar is discharged from, there is the sub-fraction air can remain in the top of current stabilization jar, along with the continuous rising of water level forms air pressure at current stabilization jar internal upper part, air pressure is being suppressed blast and the fluctuation that water level produces, make gas-water separation, this part residual air is finally discharged from guide cylinder 3 tops, has avoided the water spray phenomenon.
Continuous rising along with water level, ball float 4 raises gradually, press rubber seal 5 until ball float 4 tops, close by ball float 4 and 6 pairs of multi-functional anti-negative pressure valve outlets of middle baffle plate, and simultaneously, when ball float 4 rose to specified altitude, the buffer head 18 that install at its top touched microswitch 17, connect power supply, current stabilization jar and other relevant devices can normally move.
When the municipal tap water pressure flow descends, in the time of can not satisfying user's water supply volume, water level descends in the current stabilization jar, ball float 4 descends thereupon, buffer head 18 disengagings contact with microswitch 17, break away from successively then and the contacting of middle baffle plate 6 and rubber seal 5, multi-functional anti-negative pressure valve outlet is opened, the outer air of current stabilization jar can enter in the guide cylinder 3, thereby destroyed the generation of negative pressure, the pressure flow for the treatment of the municipal tap water returns to water level when rising, and the air in the current stabilization jar is discharged from again, and equipment can recover normal operating conditions.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (8)
1. multi-functional anti-negative pressure valve, comprise guide cylinder (3) and ball float (4), ball float (4) is installed in guide cylinder (3) inside, can in guide cylinder (3), move up and down, it is characterized in that: described guide cylinder (3) top is by in the stack, lower flange (12,11) be fixed on current stabilization top ends of cans (8), guide cylinder (3) middle and lower part extend into current stabilization jar inside, guide cylinder (3) internal upper part is provided with microswitch (17), ball float (4) is installed by last fixed guide in the middle part, the buffer that install at ball float (4) top passes fixed guide and is connected with microswitch (17) contact, guide peg (2), fixed guide under the movable connection in guide peg (2) bottom are installed in ball float (4) bottom.
2. multi-functional anti-negative pressure valve according to claim 1, it is characterized in that: the described fixed guide that goes up comprises erosion control leading truck (7), middle baffle plate (6) and rubber seal (5) from top to bottom in proper order, middle baffle plate (6) level is installed in middle part in the guide cylinder (3), middle baffle plate (6) upper fixed is installed erosion control leading truck (7), bottom fixed installation rubber seal (5), middle baffle plate (6) center offers through hole.
3. multi-functional anti-negative pressure valve according to claim 2, it is characterized in that: described upward erosion control leading truck (7) is the support of a font for the cross section, and the center offers the centre bore of allowing that buffer slides, and last erosion control leading truck (7) border is provided with a plurality of erosion control side openings (20) of going up.
4. according to claim 1 or 3 described multi-functional anti-negative pressure valves, it is characterized in that: described buffer comprises buffer head (18), guide pipe (19) and spring (21), guide pipe (19) top end opening, bottom are fixedly mounted on the top of ball float (4), buffer head (18) cross section is the T font, buffer head (18) bottom is sleeved in the guide pipe (19), in the bottom of buffer head (18) spring (21) is housed.
5. multi-functional anti-negative pressure valve according to claim 1, it is characterized in that: described fixed guide down is installed in the bottom of guide cylinder (3), comprise erosion control leading truck (1) and inboard erosion control leading truck (26) down under base plate (22), the outside, erosion control leading truck (1) and inboard erosion control leading truck (26) down all are the bottom that concave shape is installed in base plate (22) under the outside, and erosion control leading truck (1) is sleeved on the inboard outside of erosion control leading truck (26) down under the outside.
6. multi-functional anti-negative pressure valve according to claim 5, it is characterized in that: have a plurality of weep holes (24) on the described base plate (22), erosion control leading truck (1) and the inboard border of erosion control leading truck (26) down are equipped with a plurality of erosion control gaging holes (23) down under the outside, and the bottom of erosion control leading truck (1) offers a plurality of erosion control bottom outlets (25) down under the outside.
7. multi-functional anti-negative pressure valve according to claim 1, it is characterized in that: described upper and lower flange (12,11) outside is provided with protective cover (9), the top of protective cover (9) is provided with the warning indicating device, and the warning indicating device comprises power supply indicator (13), liquid level indicator lamp (14), pump indicator lamp (15) and the alarm lamp (16) by electric control gear control.
8. multi-functional anti-negative pressure valve according to claim 1 is characterized in that: be matched in clearance between described ball float (4) and guide cylinder (3) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320215572 CN203213203U (en) | 2013-04-25 | 2013-04-25 | Multifunctional anti-negative pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320215572 CN203213203U (en) | 2013-04-25 | 2013-04-25 | Multifunctional anti-negative pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203213203U true CN203213203U (en) | 2013-09-25 |
Family
ID=49202752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320215572 Expired - Fee Related CN203213203U (en) | 2013-04-25 | 2013-04-25 | Multifunctional anti-negative pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203213203U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003697A (en) * | 2015-07-20 | 2015-10-28 | 江苏通达船用阀泵有限公司 | Novel air signal safety valve |
| CN105821941A (en) * | 2016-04-20 | 2016-08-03 | 安徽兴安电气设备股份有限公司 | Novel intake and exhaust device with water supply steady-flow tank |
| CN107158756A (en) * | 2017-06-23 | 2017-09-15 | 周剑锋 | A kind of boiler air water hermetic separation device |
| CN107280536A (en) * | 2017-07-31 | 2017-10-24 | 东莞市华妙电子科技有限公司 | A kind of infant supplemental food cooking machine |
-
2013
- 2013-04-25 CN CN 201320215572 patent/CN203213203U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003697A (en) * | 2015-07-20 | 2015-10-28 | 江苏通达船用阀泵有限公司 | Novel air signal safety valve |
| CN105821941A (en) * | 2016-04-20 | 2016-08-03 | 安徽兴安电气设备股份有限公司 | Novel intake and exhaust device with water supply steady-flow tank |
| CN107158756A (en) * | 2017-06-23 | 2017-09-15 | 周剑锋 | A kind of boiler air water hermetic separation device |
| CN107280536A (en) * | 2017-07-31 | 2017-10-24 | 东莞市华妙电子科技有限公司 | A kind of infant supplemental food cooking machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206816574U (en) | A kind of oil tank liquid level alarm | |
| CN203213203U (en) | Multifunctional anti-negative pressure valve | |
| CN203979879U (en) | Self-draining air compressor caisson | |
| CN206457899U (en) | A kind of quantitative detergent of closet agent feeding device | |
| CN202203454U (en) | Positive and negative pressure water seal safety system for isolating waste gas | |
| CN203638048U (en) | Daily fuel oil tank ventilation device for preventing mechanical collisions and sea water encroachment | |
| CN211121504U (en) | Measurement and control equipment for sewage treatment | |
| CN204143265U (en) | A kind of liquid-level auto-control device | |
| CN207945062U (en) | A kind of self-draining arrangement of air accumulator | |
| CN202492064U (en) | Floating-roof oil tank central dewatering oil-contact-type alarm device | |
| CN206961637U (en) | A kind of metal bellow oil conservator with oil-collecting monitoring function | |
| CN204916050U (en) | Boats and ships fuel overflow cabin structure | |
| CN203455725U (en) | Low-cost zero-energy consumption pump pool liquid level automatic control device | |
| CN203905094U (en) | Energy-saving water supply device | |
| CN202734925U (en) | Totally-enclosed water box overflow alarm device | |
| CN107162105A (en) | A kind of sewage pre-treatment device of water-oil separating | |
| CN208844667U (en) | Safety and sanitation water storage device | |
| CN207060969U (en) | A kind of chemical storage tanks | |
| CN203531052U (en) | Water flow and air check device of air pressure water tank | |
| CN203213207U (en) | Vertical non-negative pressure variable-frequency water supply equipment with overlaid annular pipe network | |
| CN202807521U (en) | Horizontal storage device of washing materials for fire retardant production | |
| CN202673397U (en) | Engine oil auto-compensation device for diesel | |
| CN202361083U (en) | Safety protection device of coal gas drainer | |
| CN203808178U (en) | Water tank capable of preventing float ball valve from swinging | |
| CN205226881U (en) | Automatic drainage device of gas storage tank |
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: 20130925 Termination date: 20150425 |
|
| EXPY | Termination of patent right or utility model |