CN203625973U - Box type non-negative pressure frequency conversion water supply apparatus - Google Patents
Box type non-negative pressure frequency conversion water supply apparatus Download PDFInfo
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- CN203625973U CN203625973U CN201320796090.0U CN201320796090U CN203625973U CN 203625973 U CN203625973 U CN 203625973U CN 201320796090 U CN201320796090 U CN 201320796090U CN 203625973 U CN203625973 U CN 203625973U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Abstract
The utility model relates to a box type non-negative pressure frequency conversion water supply apparatus. Compared with the prior art, the water supply apparatus overcomes the defects that a solenoid valve or an electric valve is essential to a water supply apparatus in the prior art. The flow bidirectional conversion device includes a cylinder body, an upper flange is arranged at the upper part of the cylinder body, the left side of the cylinder body is provided with a left flange, the right side of the cylinder body is provided with a right flange, a left variable-diameter flange is arranged on the left flange, a right variable-diameter flange is arranged on the right flange, a left positioning guide plate is welded on a left variable-diameter guide joint of the left variable-diameter flange, a right positioning guide plate is welded on a right variable-diameter guide joint of the right variable-diameter flange, a guide rod is arranged on the left positioning guide plate and the right positioning guide plate, the guide rod movably penetrates through a sealing ball, baffle plates are welded on the cylinder body and are respectively arranged at the junction part of the cylinder body and the left flange and the junction part of the cylinder body and the right flange, and rubber sealing pads are respectively fixed between the baffle board and the left flange and between the baffle board and the right flange. The water supply apparatus provided adopts a full-mechanical structure, is free of using a solenoid valve, is safe and reliable, and prolongs the service life.
Description
Technical field
The utility model relates to supply equipment technical field, is a kind of box type negative-pressure-free frequency-changing water supply device specifically.
Background technology
Common living water equipment has non-negative pressure frequency-changing water supply device and box type negative-pressure-free frequency-changing water supply device in the market, and these two technology are all that national sector standard is promoted product.But in some special areas, adopt the many of box type negative-pressure-free equipment.Because be subject to the pressure of local city planting ductwork, the restriction of underfed, in general as long as when pressure, the flow of city planting ductwork is equal to or greater than the maximum water supply volume of user in the time of water use peak, user only needs a set of non-negative-pressure variable frequency equipment just can meet user's water requirements.But during due to the pressure of city planting ductwork, maximum water supply volume that flow is less than user, can not meet user's maximum water supply volume, user must select to use box type negative-pressure-free equipment.Therefore generally municipal water supply all adopts non-negative pressure frequency-changing water supply device to add water tank to share, prevent from using instead when municipal tap water from can not meet water tank stock's water.
Because supply equipment is all automatic water supply device, can not, in the time that tap water stops, manually removing to change the water of water tank.Therefore in the use transfer process of municipal tap water and water tank stock's water, need a mutual conversion mechanism, no matter realize is can automatically change with tap water or the water of water tank.What on market, routine was traditional is to change with electromagnetic valve, as shown in Figure 4, in initial traditional box type negative-pressure-free supply equipment, municipal tap water not only enters water tank 1, and also flows to without in negative pressure equipment steady-flow tank 3, when municipal tap water pressure simultaneously, when flow is greater than the maximum water supply volume of user's water use peak, tap water motor operated valve 2 is opened, and water tank motor operated valve 4 cuts out, and equipment is taken out the water of city planting ductwork.In the time that tap water pressure flow can not meet user's normal water supply, close tap water motor operated valve 2 and open water tank motor operated valve 4 simultaneously, the water of water pump 5 pumping boxes.If when tap water recovers its pressure flow, then open tap water motor operated valve 2, close water tank motor operated valve 4 simultaneously, equipment extracts again the water of city planting ductwork, recovers normal non-negative-pressure variable frequency and supplies water.Between tap water and water tank, automatically change by two motor operated valves.
The more traditional box type negative-pressure-free supply equipment of the box non-negative pressure water-supply installation of supercharging that later stage develops out improves a lot, and the difference of supercharging box type negative-pressure-free and traditional box type negative-pressure-free is that tradition is box without there is no pressure in the water tank in negative pressure equipment.In the time using tap water, equipment is there is no pressure when can using tap water pressure and using Water in Water Tank instead, and this design selection and adjustment to equipment brings puzzlement.And the advantage of pressure tank is no matter with tap water or identical with its pressure of water of water tank, because there is pressurization system in water tank.Its pressure equals tap water pressure.
Again as shown in Figure 5, its operating principle is in the time that the pressure flow of city planting ductwork 6 can meet user's normal water supply, opens tap water motor operated valve 2 and closes water tank motor operated valve 1 simultaneously, and tap water enters steady-flow tank 3, pressure pump 4, opens as required the water of taking out steady-flow tank and realizes normal water supply.In the time that tap water can not meet user's normal water supply, equipment is opened water tank motor operated valve 1 automatically, automatically closes tap water motor operated valve 2 simultaneously, and now in horizontal pipe, pump 5 is opened supercharging, Water in Water Tank pump 5, water tank motor operated valve 1 in horizontal pipe enter steady-flow tank 3, realize normal water supply.In the time that tap water recovers its pressure flow, tap water motor operated valve 2 is opened and is stopped booster pump simultaneously, closes water tank motor operated valve 1, again recovers tap water supply.
But now in horizontal pipe, pump box formula non-negative pressure water-supply installation is because its unique advantage has become the primary selection of newly-built community, but it still must adopt electromagnetic valve to realize the switching between city planting ductwork and water tank.As shown in Figure 6 and Figure 7, in the time that city planting ductwork 1 pressure flow can meet user and normally uses, tap water not only enters water tank 8 and also enters steady-flow tank 3 through steady-flow tank water inlet 2 simultaneously.Now tap water water inlet motor operated valve 4 is opened, and water tank water outlet motor operated valve 5 cuts out, and the interior water of steady-flow tank 3 enters in three pipes in pump 7 through tap water water inlet motor operated valve 4 water inlet pipes 6.If equipment starts, in pipe, pump 7 is taken out the water in steady-flow tank, and in pipe, pump 7 discharges water for system water.In the time that municipal ductwork pressure flow can not meet the normal water of user or the time of cutting off the water, tap water water inlet motor operated valve 4 cuts out, and opens water tank water outlet motor operated valve 5 simultaneously, and Water in Water Tank enters pump 7 in 3 pipes through water tank water outlet motor operated valve, the water of pump 7 pumping boxes in pipe, and Water in Water Tank Pressure water discharging is supplied to system.
But because electromagnetic valve is subject to the impact of voltage instability, and there is unreliable, dangerous, troublesome shortcoming in the mechanism of electromagnetic valve.Although portioned product is used motor operated valve instead and realized conversion on market, the relative electromagnetic valve of motor operated valve is better, and motor operated valve also exists easily and goes wrong, and its huge structure, installation trouble, Heavy Weight and price are high.How to research and develop a kind of not box type negative-pressure-free frequency-changing water supply device based on electromagnetic valve and motor operated valve and become the technical problem of being badly in need of solution.
Utility model content
The purpose of this utility model is the defect that must rely on electromagnetic valve or motor operated valve in prior art in order to solve, and provides a kind of box type negative-pressure-free frequency-changing water supply device to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of box type negative-pressure-free frequency-changing water supply device, comprise municipal pipeline, steady-flow tank, water inlet pipe, bypass valve, pump in pipe, total outlet pipe and water tank, described municipal pipeline access steady-flow tank, described bypass valve is connected with water tank, in described water inlet tube and tube, pump is connected and is arranged on the bottom in water tank, in pipe, the pump outlet of pump passes water tank and is connected with total outlet pipe, also comprise flow bi-directional conversion device, described steady-flow tank is connected with the left adapter flange of flow bi-directional conversion device, the other end of described bypass valve is connected with the right adapter flange of flow bi-directional conversion device, the other end of described water inlet pipe is connected with the upper flange of flow bi-directional conversion device.Described flow bi-directional conversion device comprises cylindrical shell, described cylindrical shell top is provided with upper flange, cylindrical shell left side is provided with left flange, cylindrical shell right side is provided with right flange, left adapter flange is installed on left flange, right adapter flange is installed on right flange, on the left reducing guiding joint of left adapter flange, be welded with left positioning guiding plate, on the right reducing guiding joint of right adapter flange, be welded with right positioning guiding plate, on left positioning guiding plate and right positioning guiding plate, guide peg is installed, ball sealer is directed to bar and runs through movable installation, plate washer is welded on cylindrical shell and lays respectively at cylindrical shell and left flange and right flange junction, between plate washer and left flange and right flange, be all fixed with rubber gasket.
Also comprise pushing assisted plate, described pushing assisted plate is fixedly mounted on ball sealer, and installation direction and the guide peg of pushing assisted plate are perpendicular.
Also comprise water tank basis and manhole, described water tank is arranged on water tank basis, and described manhole is opened in the top of water tank.
Also comprise blowoff valve and the bleed off pipe that is arranged on water tank upper, described blowoff valve is located at the bottom of water tank.
Also comprise total water outlet butterfly valve, in described pipe, the quantity of pump is 3, and described total water outlet butterfly valve is located between pump outlet and total outlet pipe.
Also comprise fluid level controller, the top of water tank is drawn and be arranged on to described fluid level controller from municipal pipeline.
Also comprise the anti-negative pressure controller being arranged on steady-flow tank.
beneficial effect
A kind of box type negative-pressure-free frequency-changing water supply device of the present utility model, has compared with prior art adopted pure frame for movement, has avoided use electromagnetic valve, safe and reliable, has extended application life.Avoided electromagnetic valve, motor operated valve often to there will be the defect of fault, wherein flow bi-directional conversion device is pure Design of Mechanical Structure, and its planform is simpler than traditional electromagnetic valve, motor operated valve, and its Performance Ratio electromagnetic valve, motor operated valve be science more rationally.The utility model does not use power supply supply, not only safety, but also energy-conservation.Adopt the utility model two complete equipments as example take highrise building two complete equipments, can save every year 720 degree electricity, within 10 years, can power saving 7200 spend.While is because tradition needs two motor operated valves without negative pressure equipment, and the every complete equipment of employing bi-directional conversion device only needs one, and its price differs more than ten thousand yuan.There are features reasonable in design, simple in structure, safe and reliable, energy-conserving and environment-protective.
accompanying drawing explanation
Fig. 1 is device structure schematic diagram of the present utility model
Fig. 2 is structure birds-eye perspective of the present utility model
Fig. 3 is the structure sectional view of flow bi-directional conversion device in the utility model
Wherein, 1-municipal pipeline, the anti-negative pressure controller of 2-, 3-steady-flow tank, 4-fluid level controller, 5-water tank, 6-pressure meter, 7-pressure sensor, 8-bleed off pipe, the total outlet pipe of 9-, the total water outlet butterfly valve of 10-, 11-pump outlet, 12-flow bi-directional conversion device, 13-bypass valve, 14-water inlet pipe, pump in 15-pipe, 16-water tank basis, 17-blowoff valve, 20-manhole, 120-cylindrical shell, the left flange of 121-, the right flange of 122-, 123-plate washer, 124-rubber gasket, 125-ball sealer, 126-guide peg, the right reducing guiding of 127-joint, 128-pushing assisted plate, the left reducing guiding of 129-joint, the left adapter flange of 130-, the right adapter flange of 131-, the right positioning guiding plate of 132-, the left positioning guiding plate of 133-, 134-upper flange.
Fig. 4 is the structural representation of box type negative-pressure-free supply equipment traditional in prior art
Wherein, 1-water tank, 2-tap water motor operated valve, 3-steady-flow tank, 4-motor operated valve, 5-water pump.
Fig. 5 is the structural representation of the box non-negative pressure water-supply installation of supercharging in prior art
Wherein, pump, 6-city planting ductwork in 1-water tank motor operated valve, 2-tap water motor operated valve, 3-steady-flow tank, 4-water pump, 5-horizontal pipe.
Fig. 6 is the structural representation of pump box formula non-negative pressure water-supply installation in horizontal pipe in prior art
Fig. 7 is the structure birds-eye perspective of pump box formula non-negative pressure water-supply installation in horizontal pipe in prior art
Wherein, pump, 8-water tank in 1-city planting ductwork, 2-steady-flow tank water inlet, 3-steady-flow tank, 4-water inlet motor operated valve, 5-water outlet motor operated valve, 6-water inlet pipe, 7-pipe.
The specific embodiment
For making that architectural feature of the present utility model and effect of reaching are had a better understanding and awareness, coordinate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
As depicted in figs. 1 and 2, the point of the A in Fig. 1 position is identical with the A point position in Fig. 2.A kind of box type negative-pressure-free frequency-changing water supply device described in the utility model, comprises pump 15 in municipal pipeline 1, steady-flow tank 3, water inlet pipe 14, bypass valve 13, pipe, total outlet pipe 9 and water tank 5.Municipal pipeline 1 accesses steady-flow tank 3, and steady-flow tank 3 is provided with anti-negative pressure controller 2.Bypass valve 13 is connected with water tank 5, enters water tank 5 for controlling the water of municipal pipeline 1, facilitates maintenance and the replacing of later stage to flow bi-directional conversion device 12.Water inlet pipe 14 is connected with pump in pipe 15 and is arranged on the bottom in water tank 5, and in pipe, pump 15 is for implementing hydraulic pressure, and its bottom being arranged in water tank 5 can better guarantee the absorption to 5 li of water of water tank.In pipe, the pump outlet 11 of pump 15 passes water tank 5 and is connected with total outlet pipe 9, and total outlet pipe 9 is for externally carrying out resident's water source supply.Also comprise flow bi-directional conversion device 12, flow bi-directional conversion device 12 is for transforming between the water source of municipal pipeline 1 and the water source of water tank 5, thus replacement electromagnetic valve.Steady-flow tank 3 is connected with the left adapter flange 130 of flow bi-directional conversion device 12, and as the pipeline access of municipal water supply 1, municipal water sources enters from left adapter flange 130.The other end of bypass valve 13 is connected with the right adapter flange 131 of flow bi-directional conversion device 12, as the water source outlet of water tank 5.The other end of water inlet pipe 14 is connected with the upper flange 134 of flow bi-directional conversion device 12, the outlet that enters total outlet pipe 9 after selecting as municipal pipeline 1 and water tank 5, total outlet pipe 9 is provided with pressure meter 6 and pressure sensor 7, for understanding the hydraulic pressure situation at total outlet pipe 9 after 15 pressurizations of pipe pump.
As shown in Figure 3, flow bi-directional conversion device 12 is pure frame for movement, comprises cylindrical shell 120, and cylindrical shell 120 tops are provided with upper flange 134, and cylindrical shell 120 left sides are provided with left flange 121, and cylindrical shell 120 right sides are provided with right flange 122.Left adapter flange 130 is installed on left flange 121, right adapter flange 131 is installed on right flange 122, left adapter flange 130 and right adapter flange 131 are installed for the pipeline that coordinates steady-flow tank 3 and bypass valve 13, also for guide strip is installed.On the left reducing guiding joint 129 of left adapter flange 130, be welded with left positioning guiding plate 133, on the right reducing guiding joint 127 of right adapter flange 131, be welded with right positioning guiding plate 132, left positioning guiding plate 133 and right positioning guiding plate 132 are welded in to the reducing guiding joint that adapter flange carries upper, can simplify installation.On left positioning guiding plate 133 and right positioning guiding plate 132, guide peg 126 is installed, guide peg 126 runs through flow bi-directional conversion device 12.Ball sealer 125 is directed to bar 126 and runs through movable installation, causes ball sealer 125 can on guide peg 126, carry out spacing the moving back and forth of left and right.Plate washer 123 is welded on cylindrical shell 120 and lays respectively at cylindrical shell 120 and left flange 121 and right flange 122 junctions, on the cylindrical shell 120 of cylindrical shell 120 and left flange 121 junctions, be welded with plate washer 123, same is also welded with plate washer 123 on the cylindrical shell 120 of cylindrical shell 120 and right flange 122 junctions, and plate washer 123 is for limiting fixing rubber gasket 124.Between plate washer 123 and left flange 121 and right flange 122, be all fixed with rubber gasket 124, between plate washer 123 and left flange 121, be fixed with rubber gasket 124, between plate washer 123 and right flange 122, be fixed with rubber gasket 124 equally.Rubber gasket 124, in the time that ball sealer 125 moves to left flange 121 or right flange 122, can seal by the cooperation of rubber gasket 124 and ball sealer 125 pipeline of left flange 121 or right flange 122, thereby reaches the object of adjusting pipeline.
In order to make the conversion between variation and municipal pipeline 1 and the water tank 5 of the reflection flow bi-directional conversion device 12 interior discharges that ball sealer 125 can be sensitiveer.Can also comprise pushing assisted plate 128, pushing assisted plate 128 is fixedly mounted on ball sealer 125, and the installation direction of pushing assisted plate 128 and guide peg 126 are perpendicular.Increase the lifting surface area of ball sealer 125 by pushing assisted plate 128, operation that can be sensitiveer is used.For the ease of the later maintenance of whole supply equipment, can also comprise water tank basis 16 and manhole 20, water tank basis 16 is the base of water tank 5, water tank 5 is arranged on water tank basis 16.Manhole 20 is opened in the top of water tank 5, during for the safeguarding of later stage water tank 5, and maintenance mans' turnover.Can also comprise blowoff valve 17 and be arranged on the bleed off pipe 8 on water tank 5 tops, bleed off pipe 8 uses when preventing that water tank 5 water yields are superfluous.Blowoff valve 17 is located at the bottom of water tank 5, uses when water tank 5 is cleaned.
For convenient maintenance in the future, also comprise total water outlet butterfly valve 10, in pipe, the quantity of pump 15 is 3, fully guarantees the needs of hydraulic pressure.Total water outlet butterfly valve 10 is located between pump outlet 11 and total outlet pipe 9, can, in the time that resident family's pipeline needs repairing, directly whole supply equipment cut out.Also comprise fluid level controller 4, fluid level controller 4 draws from municipal pipeline 1 top that is arranged on water tank 5, for water tank 5 being supplied water when anhydrous and anti-spilled use.Be arranged on the anti-negative pressure controller 2 on steady-flow tank 3, guaranteed the reliably working of steady-flow tank 3 and used.
When actual use, municipal pipeline 1 first enters on the left adapter flange 130 of flow bi-directional conversion device 12 through steady-flow tank 3, the right adapter flange 131 of flow bi-directional conversion device 12 is connected with water tank 5 by bypass valve 13, the upper flange 134 of flow bi-directional conversion device 12 is connected into pump 15 in pipe by water inlet pipe 14, thereby causes total outlet pipe 9.Now in the time that the pressure flow of municipal pipeline 1 can meet normal use, tap water is not only entered and in water tank 5, is carried out water-filling by fluid level controller 4, and enters in steady-flow tank 3.In the time that hydraulic pressure in steady-flow tank 3 is greater than in water tank 5 static pressure, press water enters flow bi-directional conversion device 12, and the ball sealer 125 in flow bi-directional conversion device 12 is pushed right adapter flange 131 on one side, i.e. one side of water tank 5.Seal the pipeline of right flange 122 by the cooperation of rubber gasket 124 and ball sealer 125, thereby close water tank 5 delivery ports, in steady-flow tank 3, tap water is through the upper flange 134 of flow bi-directional conversion device 12, enter in pipe in pump 15 through bypass valve 13, then extremely total outlet pipe 9 after 15 pressurizations of pump in pipe, to discharge water system.In the time that municipal pipeline 1 pressure flow can not meet user's normal water supply, when namely tap water pressure is less than the static pressure of water tank 5.The water of water tank 5 enters flow bi-directional conversion device 12 through bypass valve 13, now pushes the middle ball sealer ball sealer 125 in flow bi-directional conversion device 12 to left adapter flange 130, pushes steady-flow tank 3 one sides to.The pipeline of left flange 121 is sealed in cooperation by rubber gasket 124 and ball sealer 125, thereby closes tap water.The water of water tank 5 is through the upper flange 134 through flow bi-directional conversion device 12, enter in pipe in pump 15 through bypass valve 13, then after 15 pressurizations of pump in pipe to total outlet pipe 9, to discharge water system, pressurization is discharged for user.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and manual, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (7)
1. a box type negative-pressure-free frequency-changing water supply device, comprise municipal pipeline (1), steady-flow tank (3), water inlet pipe (14), bypass valve (13), pump in pipe (15), total outlet pipe (9) and water tank (5), described municipal pipeline (1) access steady-flow tank (3), described bypass valve (13) is connected with water tank (5), described water inlet pipe (14) is connected with pump in pipe (15) and is arranged on the bottom in water tank (5), the pump outlet (11) of pump in pipe (15) passes water tank (5) and is connected with total outlet pipe (9), it is characterized in that: also comprise flow bi-directional conversion device (12), described steady-flow tank (3) is connected with the left adapter flange (130) of flow bi-directional conversion device (12), the other end of described bypass valve (13) is connected with the right adapter flange (131) of flow bi-directional conversion device (12), the other end of described water inlet pipe (14) is connected with the upper flange (134) of flow bi-directional conversion device (12), described flow bi-directional conversion device (12) comprises cylindrical shell (120), described cylindrical shell (120) top is provided with upper flange (134), cylindrical shell (120) left side is provided with left flange (121), cylindrical shell (120) right side is provided with right flange (122), the upper left adapter flange (130) of installing of left flange (121), the upper right adapter flange (131) of installing of right flange (122), on the left reducing guiding joint (129) of left adapter flange (130), be welded with left positioning guiding plate (133), on the right reducing guiding joint (127) of right adapter flange (131), be welded with right positioning guiding plate (132), the upper guide peg (126) of installing of left positioning guiding plate (133) and right positioning guiding plate (132), ball sealer (125) is directed to bar (126) and runs through movable installation, plate washer (123) is welded in cylindrical shell (120) and goes up and lay respectively at cylindrical shell (120) and left flange (121) and right flange (122) junction, between plate washer (123) and left flange (121) and right flange (122), be all fixed with rubber gasket (124).
2. a kind of box type negative-pressure-free frequency-changing water supply device according to claim 1, it is characterized in that: also comprise pushing assisted plate (128), it is upper that described pushing assisted plate (128) is fixedly mounted on ball sealer (125), and the installation direction of pushing assisted plate (128) and guide peg (126) are perpendicular.
3. a kind of box type negative-pressure-free frequency-changing water supply device according to claim 2, it is characterized in that: also comprise water tank basis (16) and manhole (20), it is upper that described water tank (5) is arranged on water tank basis (16), and described manhole (20) is opened in the top of water tank (5).
4. a kind of box type negative-pressure-free frequency-changing water supply device according to claim 2, is characterized in that: also comprise blowoff valve (17) and be arranged on the bleed off pipe (8) on water tank (5) top, described blowoff valve (17) is located at the bottom of water tank (5).
5. a kind of box type negative-pressure-free frequency-changing water supply device according to claim 2, it is characterized in that: also comprise total water outlet butterfly valve (10), the quantity of pump in described pipe (15) is 3, and described total water outlet butterfly valve (10) is located between pump outlet (11) and total outlet pipe (9).
6. a kind of box type negative-pressure-free frequency-changing water supply device according to claim 2, is characterized in that: also comprise fluid level controller (4), the top of water tank (5) is drawn and be arranged on to described fluid level controller (4) from municipal pipeline (1).
7. a kind of box type negative-pressure-free frequency-changing water supply device according to claim 2, is characterized in that: also comprise the anti-negative pressure controller (2) being arranged on steady-flow tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796090.0U CN203625973U (en) | 2013-12-08 | 2013-12-08 | Box type non-negative pressure frequency conversion water supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796090.0U CN203625973U (en) | 2013-12-08 | 2013-12-08 | Box type non-negative pressure frequency conversion water supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625973U true CN203625973U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320796090.0U Withdrawn - After Issue CN203625973U (en) | 2013-12-08 | 2013-12-08 | Box type non-negative pressure frequency conversion water supply apparatus |
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| CN (1) | CN203625973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669483A (en) * | 2013-12-08 | 2014-03-26 | 安徽舜禹水务实业有限公司 | Box type non-negative-pressure variable frequency water supply equipment |
-
2013
- 2013-12-08 CN CN201320796090.0U patent/CN203625973U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669483A (en) * | 2013-12-08 | 2014-03-26 | 安徽舜禹水务实业有限公司 | Box type non-negative-pressure variable frequency water supply equipment |
| CN103669483B (en) * | 2013-12-08 | 2015-03-18 | 安徽舜禹水务实业有限公司 | Box type non-negative-pressure variable frequency water supply equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20150318 |
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| RGAV | Abandon patent right to avoid regrant |