CN213100944U - Novel just sink adjusting tank and use play water device - Google Patents
Novel just sink adjusting tank and use play water device Download PDFInfo
- Publication number
- CN213100944U CN213100944U CN202021459940.4U CN202021459940U CN213100944U CN 213100944 U CN213100944 U CN 213100944U CN 202021459940 U CN202021459940 U CN 202021459940U CN 213100944 U CN213100944 U CN 213100944U
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- water
- water outlet
- objective table
- guide cylinder
- draft tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 181
- 239000007787 solid Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 20
- 238000004062 sedimentation Methods 0.000 abstract description 15
- 230000001105 regulatory effect Effects 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 description 9
- 239000010865 sewage Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
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- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model discloses a novel just sink outlet water for equalizing basin device, including body and draft tube, the body level sets up, the draft tube runs through the body and perpendicular with the body, the upper end of draft tube is equipped with siphon generator, the draft tube is located and is equipped with the outlet pipe on the lateral wall between siphon generator and the body, the outlet pipe is connected with the draft tube is perpendicular. The device can float on the water surface and stay at any horizontal position and any height in the pool, so that the stay of any position of the whole pool is realized, the position of the water outlet is flexibly changed, the optimal water outlet position point is found to be used as the water outlet, the adjustability ensures the stability of the water outlet pressure, the water outlet pipe always keeps stable and close pressure and water outlet quantity, the water quality is ensured to be uniform, and the problem of unstable water quality and water quantity of the outlet water caused by overlarge load change of the primary sedimentation regulating pool is solved. Meanwhile, because the siphon generator is arranged, the device can discharge water under the conditions of power and unpowered water delivery.
Description
Technical Field
The utility model relates to an environmental engineering water treatment facilities technical field especially relates to a novel just sink outlet water for equalizing basin device.
Background
In industrial water treatment and municipal wastewater treatment systems, pretreatment facilities typically employ primary settling tanks to balance the quality and quantity of wastewater in order for subsequent treatment facilities to operate stably. Especially for a sewage treatment system with a biological treatment unit as a subsequent treatment facility, the uniformity of the effluent quality and the stability of the water quantity of the primary settling tank are particularly important. Practical engineering proves that unstable pretreatment effluent of the primary sedimentation regulating tank can cause the microorganisms of the biological treatment unit to have the condition of reduced treatment efficiency, and even cause the death of the microorganisms seriously, so that the effluent quality can not reach the discharge standard.
At present, the common method for yielding water of the primary sedimentation regulating tank is to embed a water outlet pipe in a certain calculated position at the water outlet end of a tank body to form a fixed water outlet point. However, the calculation has a certain deviation from the actual water outlet, so that the effect of homogenizing and uniform amount can be influenced, especially for enterprises with large actual production change, such as pharmaceutical enterprises, the change of water quality and water amount is adjusted greatly according to the market change, and the load of the primary sedimentation regulating tank is greatly impacted. In addition, seasonal production process adjustment can also cause water quality and water quantity fluctuation, and the influences can bring negative influences on the water outlet stability of the primary sedimentation regulating tank with the water outlet pipe arranged in a traditional mode.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's shortcoming, an object of the utility model is to provide a novel it uses out water device just to sink equalizing basin for solve and just sink the equalizing basin in environmental engineering water treatment and adopt the mode of traditional fixed play water to change and adjust according to actual conditions betterly, realize the problem of the equal volume of play water homogeneity.
To achieve the above and other related objects, the basic solution of the present invention is: the utility model provides a novel sink outlet water device for equalizing basin just, includes body and draft tube, the body level sets up, the draft tube runs through the body and perpendicular with the body, the upper end of draft tube is equipped with siphon generator, the draft tube is located and is equipped with the outlet pipe on the lateral wall between siphon generator and the body, the outlet pipe is connected with the draft tube is perpendicular.
The working principle and the beneficial effects of the basic scheme are as follows: the water outlet device is directly placed in a pool and floats on the surface of the pool to be used as a water outlet device of a primary sedimentation regulating pool, and a water outlet pipe is directly connected with a water delivery device to be used for water outlet under the condition of power water outlet; under the condition of unpowered water delivery, the water outlet pipe can be used for discharging water through the siphon generator at the top end.
Because this device floats on the surface of water, consequently accessible guide rope pulls and makes it reach arbitrary horizontal position of pool face, also can place the counter weight on the body, adjusts through the counter weight, makes it stop at arbitrary height in pond aquatic to realize the purpose that whole pond optional position stops. The adjustability of the water outlet device ensures the stability of the water outlet pressure, the unstable water outlet quantity of the water outlet pipe caused by the change of the water level of the primary sedimentation regulating tank can not be caused, and the water outlet pipe can always keep the similar pressure and water outlet quantity; and the device is guided to a proper position to discharge water by the traction of the guide rope, so that the problem of water quality mixing is greatly solved, and the uniformity of the water quality is ensured.
Further, be equipped with the objective table on the body, the objective table can be dismantled with the body and be connected, the draft tube runs through the objective table and can dismantle with the objective table and be connected. Set up and be convenient for place counter weight (like cement piece, fragment of brick etc.) on the objective table, adjust through the counter weight, can make this water installation stop arbitrary height in the pond water.
Further, a first guide cylinder fixing ring is arranged at the center of the objective table, a second guide cylinder fixing ring is arranged right above the first guide cylinder fixing ring, and the first guide cylinder fixing ring and the second guide cylinder fixing ring are detachably sleeved on the guide cylinder; the circumference evenly distributed of the solid fixed ring of second draft tube has a plurality of draft tube support frames that the slope set up, the upper end of draft tube support frame all can dismantle with the solid fixed ring of second draft tube and be connected, the lower extreme of draft tube support frame with the objective table can be dismantled and be connected.
Further, the first guide shell fixing ring is externally connected with an object stage mounting rack which is horizontally arranged, the object stage mounting rack is evenly arranged along the circumferential direction of the first guide shell fixing ring, and the object stage is detachably connected with the object stage mounting rack.
Further, the objective table mounting frame is arranged corresponding to the guide cylinder support frame.
Further, the objective table comprises a plurality of objective plates, and the objective plates are detachably connected with the objective table mounting frame.
Further, the detachable connection is a threaded connection and/or a bolted connection and/or a screw connection and/or a rope connection. The whole water outlet device is of a detachable structure, and is convenient to detach, transport and assemble.
Furthermore, a fixing ring is arranged on the objective table. The floating body can reach any horizontal position of the pool surface by being guided by a guide rope according to a fixed ring on the objective table.
Further, the siphon generator comprises a siphon water inlet pipe, and a gate valve is arranged on the siphon water inlet pipe. When power water delivery is used, the gate valve is closed, and waste water is pumped out from the water outlet end of the water outlet pipe by virtue of power; when unpowered water delivery is adopted, the gate valve is opened, water enters the siphon water inlet pipe, when water enters the water outlet position of the water outlet pipe, the gate valve is closed when the water head drops to form negative pressure, and siphon water outlet can be obtained by utilizing the negative pressure of the guide cylinder.
Furthermore, the bottom end of the guide cylinder is provided with a one-way bottom valve for controlling the on-off of the water flow of the guide cylinder. When the water outlet device is put into water, the one-way bottom valve can be automatically opened under the action of the water.
Furthermore, the floating body is composed of a plurality of floating bowls or a plurality of floating balls.
As above, the utility model discloses a novel just sink outlet for equalizing basin device has following beneficial effect:
this water outlet device can float on the surface of water, and stop in arbitrary horizontal position and arbitrary height in the pond, realize the stop of full pond optional position, thereby change the delivery port position in a flexible way, in order to find best water outlet position point (full pond space) as the delivery port, the stability of water pressure has been guaranteed to this kind of adjustability, can not cause the outlet pipe water yield unstability because of the change of just sinking the equalizing basin water level, can make the outlet pipe keep close pressure and water yield all the time, and lead the device to suitable position through the traction of guide rope and go out water and will greatly solve the problem that quality of water mixes, guarantee the uniformity of quality of water, thereby solved just sinking the problem that the quality of water yield is unstable that the equalizing basin caused because of the load change is too big. Meanwhile, the siphon generator is arranged, so that the water outlet device can discharge water under the conditions of powered and unpowered water delivery.
Because the position of the effluent is adjustable, when the primary sedimentation regulating tank settles the silt, the area far away from the silt can be selected, so that a good effluent effect is obtained, and the number of pre-buried pipelines is reduced. The device can save the use of mixing equipment, reduce the equipment investment, reduce the tank volume space and exert the water quality homogenizing capability to the utmost extent by utilizing the hydraulic mixing function of the primary sedimentation regulating tank.
The device is particularly suitable for enterprises with frequent production process changes and small and medium-sized domestic sewage treatment facilities with large changes of effluent quality and water quantity, is particularly suitable for sewage treatment projects such as capacity expansion of a water treatment system and changes of a water treatment process, can greatly reduce the change of treatment facilities caused by adjustment, reduces investment, and exerts the capabilities of original facilities and equipment.
Drawings
Fig. 1 is a schematic view of the overall structure of the water outlet device in the embodiment of the present invention.
Fig. 2 is a schematic structural view of a siphon generator in a water outlet device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated. The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Description of reference numerals:
the siphon-type water heater comprises a floating body 1, a guide shell 2, a water outlet pipe 3, a siphon generator 4, a siphon water inlet pipe 401, a gate valve 402, a flange 403, an objective table 5, a first guide shell fixing ring 6, a second guide shell fixing ring 7, a guide shell support frame 8, an objective table mounting frame 9, a fixing ring 10 and a one-way bottom valve 11.
The specific implementation process is as follows:
as shown in figure 1, a novel just sink effluent device for equalizing basin, including body 1, draft tube 2 and outlet pipe 3, body 1 level sets up, and draft tube 2 runs through body 1 and perpendicular with body 1, and draft tube 2 can be dismantled with body 1 and be connected, and the top of draft tube 2 is equipped with siphon generator 4, and draft tube 2 is located and is equipped with outlet pipe 3 on the lateral wall between siphon generator 4 and the body 1, and outlet pipe 3 level sets up to be connected perpendicularly with draft tube 2.
The floating body 1 is composed of a plurality of floating bowls or a plurality of floating balls. The buoys and the floating balls can adopt buoys and floating balls which are commonly used on water in the market, or other materials which can float on water, such as rubber rings, foam and the like. Of course, in order to make the service life of the water outlet device longer, the floating body 1 is preferably made of corrosion-resistant and durable materials, namely, the floating pontoon and the floating ball used on water, so that the service life of the water outlet device is longer, and the water outlet device is more convenient to use in corrosive sewage for a long time. The floating body 1 shown in fig. 1 is annular in shape, but may of course also be designed square or in another shape.
Be equipped with objective table 5 on the body 1, objective table 5 can dismantle with body 1 and be connected, draft tube 2 runs through objective table 5 and can dismantle with objective table 5 and be connected. Specifically, the central position of the objective table 5 is provided with a first guide shell fixing ring 6, a second guide shell fixing ring 7 is arranged right above the first guide shell fixing ring 6, and the first guide shell fixing ring 6 and the second guide shell fixing ring 7 are detachably sleeved on the guide shell 2. A plurality of guide cylinder support frames 8 which are obliquely arranged are uniformly distributed on the circumference of the second guide cylinder fixing ring 7, the upper ends of the guide cylinder support frames 8 are detachably connected with the second guide cylinder fixing ring 7, and the lower ends of the guide cylinder support frames 8 are detachably connected with the objective table 5; the specific number of the guide shell supporting frames 8 can be designed according to actual conditions, and four guide shell supporting frames 8 are arranged in the embodiment. The first guide cylinder fixing ring 6 is externally connected with a plurality of horizontally arranged object stage mounting frames 9, the object stage mounting frames 9 are uniformly arranged along the circumferential direction of the first guide cylinder fixing ring 6, the object stage 5 is detachably connected with the object stage mounting frames 9, and the object stage mounting frames are arranged; specifically, the object stage 5 is composed of a plurality of object plates, and the object plates are detachably connected with an object stage mounting frame 9; the specific number of the object stage mounting frames 9 and the object plates can be designed according to actual conditions, four object stage mounting frames 9 are arranged in the embodiment, and the object stage 5 is formed by splicing 4 object plates; the carrying plate can be made of plastic plate, stainless steel plate or iron plate coated with anticorrosive paint.
The whole water outlet device is of a detachable structure so as to be convenient to detach, transport and assemble. The detachable connection is a threaded connection and/or a bolt connection and/or a screw connection and/or a rope connection. Specifically, the upper end of the guide shell support frame 8 can be fixed on the second guide shell fixing ring 7 through bolt connection and/or screw connection, and the lower end of the guide shell support frame 8 can be fixed on the carrying plate through bolt connection and/or screw connection; the objective table mounting frame 9 can be fixed on the first guide shell fixing ring 6 through bolt connection and/or screw connection, or a threaded hole can be formed in the first guide shell fixing ring 6, the end part of the objective table mounting frame 9 is designed into a screw rod matched with the threaded hole, and the objective table mounting frame 9 is connected with the first guide shell fixing ring 6 through a threaded connection mode; the object carrying plate can be fixed on the object carrying table mounting frame 9 through bolt connection and/or screw connection; the object table 5 may be tied to the floating body 1 by a rope.
In addition, the object stage 5 is provided with a fixing ring 10, so that the floating body 1 can reach any horizontal position of the pool surface by guiding with a guide rope according to the fixing ring 10 on the object stage 5; the bottom end of the guide shell 2 is provided with a one-way bottom valve 11 for controlling the on-off of the water flow of the guide shell 2. When the water outlet device is put into water, the one-way bottom valve 11 can be automatically opened under the action of the water.
Referring to fig. 1 and 2, the siphon generator 4 in the water outlet device includes a siphon water inlet pipe 401, a gate valve 402 is installed on the siphon water inlet pipe 401, and the siphon generator is installed on the top end of the draft tube 2 through a flange 403. When power is used for water delivery, the gate valve 402 is closed, and waste water is pumped out from the water outlet end of the water outlet pipe 3 by virtue of power; when unpowered water delivery is adopted, the gate valve 402 is opened, water enters the siphon water inlet pipe 401, when water enters the position of the water outlet pipe 3, the water head drops to form negative pressure, the gate valve 402 is closed, and siphon water outlet can be obtained by utilizing the negative pressure of the guide cylinder 2.
The water outlet device is mainly characterized in that a water outlet pipe 3 is fixed on a guide cylinder 2, a one-way bottom valve 11 is arranged at the bottom end of the guide cylinder 2, a siphon generator 4 is arranged at the top end of the guide cylinder 2, and the guide cylinder 2 is vertically arranged on a floating body 1. The water outlet device is directly placed in a pool and floats on the surface of the pool to be used as a water outlet device of a primary sedimentation regulating pool, and the water outlet pipe 3 is directly connected with a water delivery device to be used for water outlet under the condition of power water outlet; under the condition of unpowered water delivery, the water outlet pipe 3 can be discharged through the siphon generator 4 at the top end.
As the device floats on the water surface, the floating body 1 can reach any horizontal position of the pool surface by the guide rope according to the fixed ring 10 on the objective table 5; also can place the counter weight on objective table 5, adjust through the counter weight, make body 1 stop in pond aquatic arbitrary height to realize the purpose that whole pond optional position stops. The adjustability of the water outlet device ensures the stability of the water outlet pressure, the unstable water outlet quantity of the water outlet pipe 3 caused by the change of the water level of the primary sedimentation regulating tank can not be caused, and the water outlet pipe 3 can always keep the similar pressure and water outlet quantity; and the device is guided to a proper position to discharge water by the traction of the guide rope, so that the problem of water quality mixing is greatly solved, and the uniformity of the water quality is ensured.
The water outlet device solves the problem that the quality and quantity of outlet water are unstable due to overlarge load change of the primary sedimentation regulating tank. Firstly, in the aspect of water quantity regulation, because the unstable water quantity factor caused by pressure change is solved, the flow stability of unpowered effluent is very obvious, and the water quantity regulation load is improved by about 50% by taking domestic sewage as an example through the water quantity balance degree of a primary sedimentation regulating tank. Secondly, the water outlet device has more obvious adjustment on water quality, the water quality is more difficult to be uniform than the water quantity due to the influence of hydrodynamics, the proper water outlet position is considered besides adding a mixing device when the fixed water outlet achieves the uniform water quality, the adjustment is very limited due to condition limitation, the water outlet device can flexibly change the water outlet position so as to find the optimal water outlet position point (the whole pool space) as the water outlet, and the reasonable adjustment and the change can be carried out according to the hydraulic condition. Theoretically, the adjustment can exert the mixing uniformity capacity of the adjusting tank by 100 percent. Simultaneously, use this device can furthest reduce to use mixing apparatus in the equalizing basin that just sinks, reduce the pond volume space, utilize the hydraulic mixing effect of just sinking the equalizing basin to exert water quality homogenization ability extremely. Finally, the primary sedimentation regulating tank has the function of sedimentation of the silt, and the water outlet position is adjustable, so that the device can be selected to be away from a silt region when the silt is settled, a good water outlet effect can be obtained, the silt can be cleaned by the device when the silt is cleaned, and the number of pre-buried pipelines is reduced.
In a word, the device can save a certain amount of mixing equipment, reduce the equipment investment by about 30 percent, simultaneously reduce the pool capacity and save the civil engineering investment by about 50 percent. The method has better compatibility particularly for enterprises with frequent production process change and small and medium-sized domestic sewage treatment facilities with large change of effluent quality and water quantity. The sewage treatment project such as the change of the water treatment process is particularly suitable for the capacity expansion of the water treatment system, the change of treatment facilities caused by adjustment is greatly reduced, the investment is reduced, and the capabilities of original facilities and equipment are exerted.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a novel just sink outlet water for equalizing basin device which characterized in that: the floating body is horizontally arranged, the guide cylinder penetrates through the floating body and is perpendicular to the floating body, a siphon generator is arranged at the upper end of the guide cylinder, a water outlet pipe is arranged on the side wall of the guide cylinder, which is located between the siphon generator and the floating body, and the water outlet pipe is perpendicularly connected with the guide cylinder.
2. The water outlet device of claim 1, wherein: the floating body is provided with an objective table, the objective table is detachably connected with the floating body, and the guide cylinder penetrates through the objective table and is detachably connected with the objective table.
3. The water outlet device of claim 2, wherein: a first guide cylinder fixing ring is arranged at the center of the objective table, a second guide cylinder fixing ring is arranged right above the first guide cylinder fixing ring, and the first guide cylinder fixing ring and the second guide cylinder fixing ring are detachably sleeved on the guide cylinder; the circumference evenly distributed of the solid fixed ring of second draft tube has a plurality of draft tube support frames that the slope set up, the upper end of draft tube support frame all can dismantle with the solid fixed ring of second draft tube and be connected, the lower extreme of draft tube support frame with the objective table can be dismantled and be connected.
4. A water outlet device according to claim 3, wherein: the fixed ring of first draft tube is external to have the objective table mounting bracket that a plurality of levels set up, the objective table mounting bracket evenly sets up along the fixed ring's of first draft tube circumference, the objective table can be dismantled with the objective table mounting bracket and be connected.
5. The water outlet device of claim 4, wherein: the objective table mounting frame is arranged corresponding to the guide cylinder supporting frame.
6. The water outlet device of claim 4, wherein: the objective table comprises a plurality of objective plates, and the objective plates are detachably connected with the objective table mounting frame.
7. The water outlet device of claim 2, wherein: the objective table is provided with a fixing ring.
8. The water outlet device of claim 1, wherein: the siphon generator comprises a siphon water inlet pipe, and a gate valve is arranged on the siphon water inlet pipe.
9. The water outlet device of claim 1, wherein: and a one-way bottom valve for controlling the on-off of water flow of the guide cylinder is arranged at the bottom end of the guide cylinder.
10. The water outlet device of claim 1, wherein: the floating body is composed of a plurality of floating cylinders or a plurality of floating balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459940.4U CN213100944U (en) | 2020-07-22 | 2020-07-22 | Novel just sink adjusting tank and use play water device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021459940.4U CN213100944U (en) | 2020-07-22 | 2020-07-22 | Novel just sink adjusting tank and use play water device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213100944U true CN213100944U (en) | 2021-05-04 |
Family
ID=75679945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021459940.4U Expired - Fee Related CN213100944U (en) | 2020-07-22 | 2020-07-22 | Novel just sink adjusting tank and use play water device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213100944U (en) |
-
2020
- 2020-07-22 CN CN202021459940.4U patent/CN213100944U/en not_active Expired - Fee Related
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