CN204898805U - Pipe dredge - Google Patents
Pipe dredge Download PDFInfo
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- CN204898805U CN204898805U CN201520644308.XU CN201520644308U CN204898805U CN 204898805 U CN204898805 U CN 204898805U CN 201520644308 U CN201520644308 U CN 201520644308U CN 204898805 U CN204898805 U CN 204898805U
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- piston
- hole
- pressure cylinder
- force application
- pipeline drainer
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Abstract
The utility model discloses a pipe dredge belongs to the technical field that waste pipe or the interior tampon of washbowl are got rid of in help. It has seted up first through -hole including filling head, pressure cylinder, piston, application of force pole in the packing head, the pressure cylinder is separated for first cavity, second cavity by the piston, first through -hole and first cavity intercommunication, application of force pole fixed connection in piston to, during application of force pole was in the second cavity, the piston constituted the sliding pair with the inner wall of pressure cylinder, fills the head and connects in the bottom of pressure cylinder, the internal diameter of first through -hole is less than the internal diameter of pressure cylinder, filling first kind of flexible material of pretext and making, first kind of flexible material does not absorb water. Need not to carry out further cleanness to the tampon in waste pipe or the washbowl after dredging the pipeline with it to, need not to add the pressure air supply. It can get into common people house.
Description
Technical field
The utility model relates to the device technique field helping to get rid of padding in waste pipe or washbasin, particularly relates to a kind of pipeline drainer.
Background technology
Waste pipe or washbasin dirt stifled be a very troubling thing, for this problem, have the multiple device getting rid of padding in waste pipe or washbasin that helps to come out, such as:
Authorization Notice No. is that the Chinese utility model patent of 204266325U discloses a kind of unbloking device for sewer, see accompanying drawing 1, described dredging device comprises handle 81, compressible inflator 82, sucker 83, described handle 81 is flexibly connected by compressible inflator 82 with sucker 83, described compressible inflator 82 is hollow structure, and is communicated with sucker 83 inside.Described handle 81 lower end is connected with compressible inflator 82 threaded upper ends, and compressible inflator 82 lower end is connected with sucker 83 thread seal.Described compressible inflator 82 is vulcanie material with sucker 83.The utility model compared with prior art can not only increase press-in air capacity and displacement, significantly strengthens dredging effect, improve service efficiency, and service time is of a specified duration, can dismounting and change component wherein, economical and practical.
Its internal negative pressure caused by the decrement of compressed gas cylinder 82, make padding from the arrival end sucking-off of waste water pipe or washbasin, after sucking-off, also need to clear up the padding be sucked out further, and padding is usually messy, sometimes also distribute the corrupt foul smell of bacterium, clearing up the padding itself be sucked out also is carrion something.
Authorization Notice No. is that the Chinese utility model patent of CN204510389U discloses a kind of Pneumatic pipeline drainer.See accompanying drawing 2, it comprises appendix 01 and elastic bag 02, and described elastic bag 02 is provided with an air inlet port 201 and a gas outlet 202, and described air inlet port 201 is connected with appendix one end 01, and described elastic bag 02 gas outlet 202 is provided with moment exhaust plant 09.It in use, elastic bag 02 is filled in pipe from the sewer mouth of pipe, pressure gas source only need be inflated by appendix 01 pair of elastic bag 02, elastic bag 02 is made to expand and block sewer pipe arrival end, when after elastic bag 02 accumulated inside to certain air pressure, moment exhaust plant on described elastic bag 02 gas outlet 09 is opened, and gases at high pressure are gone out instantaneously and pushed open by obstruction, thus reach the object of dredging.Therefore use convenient.
Although it utilizes gases at high pressure to go out instantaneously and is pushed open by obstruction, it in use needs to set up pressure gas source, and in general family, can not provide pressure gas source whenever and wherever possible, therefore, is difficult to enter into common people house.
Utility model content
In view of this, the utility model provides without the need to cleaning further the padding in waste pipe or washbasin after a kind of dredging, and, without the need to setting up the pipeline drainer of pressure gas source, thus be more suitable for practicality.
In order to achieve the above object, the pipeline drainer that the utility model provides mainly provides following technical scheme:
The pipeline drainer that the utility model provides comprises filling head, pressure cylinder, piston, force application rod,
The first through hole is offered in described filling head,
Described pressure cylinder is divided into the first chamber, the second chamber by described piston,
Described first through hole and described first chamber,
Described force application rod is fixedly connected on described piston, and described force application rod is in described second chamber,
The inwall of described piston and described pressure cylinder forms sliding pair,
Described filling head is connected to the bottom of described pressure cylinder;
The internal diameter of described first through hole is less than the internal diameter of described pressure cylinder;
Described filling head is made up of the first flexible material, and the first flexible material described does not absorb water.
The pipeline drainer that the utility model provides also can be applied to the following technical measures to achieve further.
As preferably, described pipeline drainer also comprises tube connector, and described first through hole is connected to bottom described pressure cylinder by described tube connector, and described tube connector is made up of the second flexible material.
As preferably, described pipeline drainer also comprises elastomeric element, and it is outside that described elastomeric element is set in described tube connector, the coefficient of stiffiness of tube connector described in the coefficient of stiffiness > of described elastomeric element.
As preferably, described pipeline drainer also comprises handle, and described handle is connected to the free end of described force application rod.
As preferably, described handle comprises hand rod, connecting portion, and one end of described connecting portion is fixedly connected on described hand rod, and the other end of described connecting portion is connected to described force application rod, and the top of described hand rod is provided with arc-shaped recess in the position of symmetry.
As preferably, described pipeline drainer also comprises end cap, described end cap offers the second through hole,
Described force application rod and described second through hole form sliding pair,
Described end cap lid is located at the top of described pressure cylinder.
As preferably, described end cap is provided with several third through-holes, and described second chamber is in communication with the outside by described third through-hole.
As preferably, described force application rod is axially arranged with key along it, described second through hole is provided with the keyway coordinated with described key,
Or,
Described force application rod is axially arranged with keyway along it, and described second through hole is provided with the keyway coordinated with described key.
As preferably, described key is spline.
As preferably, described piston comprises piston only and damped part, and described damped part is removably connected to described piston only.
The pipeline drainer that the utility model provides comprises filling head, pressure cylinder, piston, force application rod, the first through hole is offered in filling head, pressure cylinder is divided into the first chamber, the second chamber by piston, first through hole and the first chamber, force application rod is fixedly connected on piston, and force application rod is in the second chamber, the inwall of piston and pressure cylinder forms sliding pair, and filling head is connected to the bottom of pressure cylinder; The internal diameter of the first through hole is less than the internal diameter of pressure cylinder; Filling head is made up of the first flexible material, and the first flexible material does not absorb water.
During the pipeline drainer that application the utility model provides, relative fixing with the outfall of waste pipe or washbasin by filling head, to be made up of the first flexible material due to this filling head and not absorb water, when the outfall specification of waste pipe or washbasin changes, filling head can produce corresponding deformation, and this filling head can be adapted with the outfall of different size.Its operating principle is, during by the filling of this pipeline drainer to the outfall of waste pipe or washbasin, the end of the first through hole forms water seal, upwards piston is carried by force application rod, now, the volume of the first chamber increases, and the pressure in the accommodation space that is made up of the first chamber and the first through hole is reduced, and the residual water in waste pipe or washbasin enters the first chamber by the first through hole; After this, piston is pressed down by force application rod, now, the water pressurized be in the first chamber flows out from the first through hole, internal diameter due to the first through hole is less than the internal diameter of pressure cylinder, the flow velocity that water flows out from the first through hole end obviously increases, and according to momentum theorem and Ft=m Δ v, it can apply larger active force to padding in waste pipe or washbasin; Propose piston and the operation pressing down piston on repeatedly performing, repeatedly active force can be applied to padding in waste pipe or washbasin, make it flow out in waste pipe or washbasin.Or padding can produce back and forth movement trend with above carrying piston and press down the operation of piston in waste pipe or washbasin, to make in waste pipe or washbasin padding in waste pipe or washbasin from closely knit become loosen after be pushed out waste pipe or washbasin.Apply this pipeline drainer to after padding dredging in waste pipe or washbasin, without the need to cleaning further the padding in waste pipe or washbasin, and without the need to setting up pressure gas source, therefore this pipeline drainer can enter common people house.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the structural representation of Authorization Notice No. a kind of unbloking device for sewer disclosed in the Chinese utility model patent of 204266325U;
Fig. 2 is the structural representation of Authorization Notice No. a kind of Pneumatic pipeline drainer disclosed in the Chinese utility model patent of CN204510389U;
The sectional view of the pipeline drainer that Fig. 3 provides for the utility model embodiment one;
The sectional view of the pipeline drainer that Fig. 4 provides for the utility model embodiment two;
The structural representation of the pipeline drainer that Fig. 5 provides for the utility model embodiment two;
Fig. 6 be in Fig. 4 the first C-C to schematic diagram;
Fig. 7 be in Fig. 4 the second C-C to schematic diagram;
Fig. 8 be in Fig. 4 the third C-C to schematic diagram;
Fig. 9 be in Fig. 4 the 4th kind of C-C to schematic diagram;
Figure 10 be in Fig. 4 the 5th kind of C-C to schematic diagram;
Figure 11 is the partial enlarged drawing of part A in Fig. 5;
Figure 12 is the partial enlarged drawing of part B in Fig. 5;
The sectional view of the pipeline drainer that Figure 13 provides for the utility model embodiment three;
Figure 14 be in Figure 13 D-D to schematic diagram.
Detailed description of the invention
The utility model is solve padding in waste pipe or washbasin that prior art exists to be difficult to the problem that is eliminated, provide a kind of pipeline drainer, without the need to cleaning further the padding in waste pipe or washbasin after its dredging, and, without the need to setting up pressure gas source, thus be more suitable for practicality.
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to the pipeline drainer that foundation the utility model proposes, its detailed description of the invention, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, such as, A and/or B, concrete is interpreted as: can include A and B simultaneously, can individualism A, also can individualism B, above-mentioned three kinds of any one situations can be possessed.
Embodiment one
See accompanying drawing 3, the pipeline drainer that the utility model provides comprises filling head 19, pressure cylinder 13, piston 9, force application rod 11, the first through hole 1 is offered in filling head 19, pressure cylinder 13 is divided into the first chamber 8, second chamber 14, first through hole 1 by piston 9 and is communicated with the first chamber 8, and force application rod 11 is fixedly connected on piston 9, and, force application rod 11 is in the second chamber 14, and piston 9 forms sliding pair with the inwall 12 of pressure cylinder 13, and filling head 9 is connected to the bottom of pressure cylinder 13; The internal diameter of the first through hole 1 is less than the internal diameter of pressure cylinder 13; Filling head 19 is made up of the first flexible material, and the first flexible material does not absorb water.
In the present embodiment, the first flexible material is selected from a kind of or other the flexible materials do not absorbed water in plastics, rubber.
During the pipeline drainer that application the utility model provides, relative fixing with the outfall of waste pipe or washbasin by filling head 19, to be made up of the first flexible material due to this filling head and not absorb water, when the outfall specification of waste pipe or washbasin changes, filling head 19 can produce corresponding deformation, and this filling head 19 can be adapted with the outfall of different size.
Its operating principle is, during by the filling of this pipeline drainer to the outfall of waste pipe or washbasin, the end 2 of the first through hole 1 forms water seal, piston 9 is upwards carried by force application rod 11, now, the volume of the first chamber 8 increases, and the pressure in the accommodation space that is made up of the first chamber 8 and the first through hole 1 is reduced, and the residual water in waste pipe or washbasin enters the first chamber 8 by the first through hole 1; After this, piston 9 is pressed down by force application rod 11, now, the water pressurized be in the first chamber 8 flows out from the first through hole 1, internal diameter due to the first through hole 1 is less than the internal diameter of pressure cylinder 13, the flow velocity that water flows out from the first through hole 1 end obviously increases, and according to momentum theorem and Ft=m Δ v, it can apply larger active force to padding in waste pipe or washbasin; Propose piston 9 and the operation pressing down piston 9 on repeatedly performing, repeatedly active force can be applied to padding in waste pipe or washbasin, make it flow out in waste pipe or washbasin.Or, in waste pipe or washbasin, padding can with above carrying piston 9 and pressing down the operation of piston 9 and produce back and forth movement trend, to make in waste pipe or washbasin padding in waste pipe or washbasin from closely knit become loosen after be pushed out waste pipe or washbasin.
Apply this pipeline drainer to after padding dredging in waste pipe or washbasin, without the need to cleaning further the padding in waste pipe or washbasin, and without the need to setting up pressure gas source, therefore this pipeline drainer can enter common people house.
In the present embodiment, filling head 19 can also removably be connected to pressure cylinder 13 by connector 5, now, when there is blocking in filling head 19, can be pulled down independent cleaning.In order to lock between this connector and pressure cylinder 13, this connector 5 can be positive six side's connectors, thus when applying common wrench and carrying out locking operation to it, the fixed claw of spanner and moving jaws can step up on this connector 5, and are unlikely to thread off.In the present embodiment, connector 5 is linked together by screw thread 7 with the junction of pressure cylinder 13.
Wherein, pipeline drainer also comprises tube connector 3, and the first through hole 1 is connected to bottom pressure cylinder 13 by connection 3 pipe, and tube connector 3 is made up of the second flexible material.In this case, because this tube connector 3 is made up of flexible material, namely can flexural deformation, when the outfall direction of waste water pipe or washbasin be not straight up and down time, this tube connector 3 is only needed itself to be out of shape, without the need to changing the direction of pressure cylinder 13, namely change direction along with the change in the outfall direction of waste water pipe or washbasin without the need to operating personnel.
Wherein, this pipeline drainer also comprises elastomeric element 4, and it is outside that elastomeric element 4 is set in tube connector 3, the coefficient of stiffiness of the coefficient of stiffiness > tube connector 3 of elastomeric element 4.Because the usual flexibility of tube connector is larger, be difficult to make deformation relatively fixing, after having set up elastomeric element 4, due to the coefficient of stiffiness of the coefficient of stiffiness > tube connector 3 of elastomeric element 4, also relative deformation is produced to make this elastomeric element 4, need to apply larger active force, therefore, the direction being connected to the filling head 19 of pressure cylinder 13 via tube connector 3, elastomeric element 4 can be made just must to change after being subject to corresponding active force, add the application stability of this pipeline drainer.In the present embodiment, elastomeric element 4 is springs, closely knit between the coil of this spring, thus, this spring can also provide one deck to protect for tube connector 3, reduces the speed that it is corroded in prolonged application process, thus extends the service life of the pipeline drainer that the utility model embodiment one provides.
Wherein, this pipeline drainer also comprises handle 16, and handle 16 is connected to the free end of force application rod 11.In this case, operating personnel or can press down and realize the lifting of piston 9 or press down by the lifting of handle 16, operate easier, comfortable.In the present embodiment, connecting portion 24 bottom centre offers sleeve, and the inwall of sleeve is provided with screw thread, and the screw thread 23 that force application rod 11 is provided with by its free end is removably connected to handle 16.Force application rod 11 can also removably be connected to handle 16 by a buckle structure.In addition, force application rod 11 can also be fixedly connected with between handle 16, such as, force application rod 11 can and handle 16 between one-body molded, or, force application rod 11 can also and handle 16 between weld together.
Embodiment two
See accompanying drawing 4 ~ 12, the difference of the pipeline drainer provided with the utility model embodiment one is, in the pipeline drainer that the utility model embodiment two provides, handle 16 comprises hand rod 17, connecting portion 24, one end of connecting portion 24 is fixedly connected on hand rod 17, the other end of connecting portion 24 is connected to force application rod 11, and the top of hand rod 17 is provided with arc-shaped recess 21 in the position of symmetry.In this case, space 18 is formed after being connected between connecting portion 24 with hand rod 17, when the pipeline drainer that staff the utility model embodiment two provides operates, finger is contained in space 18, and palm is held up on hand rod 17, now, due to the effect of this arc-shaped recess 21, when palm is that hand rod 17 contacts, can be bonded to each other with the shape of hand rod 17, more comfortable.
Wherein, the pipeline drainer that the utility model embodiment two provides also comprises end cap 15, end cap 15 offers the second through hole, and force application rod 11 and the second through hole form sliding pair, and end cap 15 lid is located at the top of pressure cylinder 13.In this case, end cap 15 can play position-limiting action to piston 9, avoids causing piston 9 from top separating pressure cylinder owing to overexerting.In the present embodiment, end cap 15 removably covers the top being located at pressure cylinder 13, and such as, end cap 15 can be threaded connection lid and be located on pressure cylinder 13, or end cap 15 can also be located on pressure cylinder 13 by a buckle structure lid.By end cap 15 from after pressure cylinder 13 removes, piston 9 can be extracted.
Wherein, end cap 15 is provided with several third through-hole 20, second chambers 14 and is in communication with the outside by third through-hole 20.By when force application rod 11 carries piston 9, the volume of the second chamber 14 can diminish, if this second chamber 14 is airtight chambers, along with diminishing of volume, air pressure can increase, cause and be difficult to carry on piston 9, after having set up these several third through-holes 20, the second chamber 14 is in communication with the outside, now, air pressure in this second chamber 14 is constant, makes piston 9 proposes action convenient.In the present embodiment, these several through holes 20 are evenly arranged, and now, the air-flow above the second chamber 14 is also comparatively even, can avoid this piston 9 deflection as far as possible.
Wherein, force application rod 11 is axially arranged with key along it, the second through hole is provided with the keyway coordinated with key, or force application rod 11 is axially arranged with keyway along it, and the second through hole is provided with the keyway coordinated with key.In this case, due to the setting of key and keyway, cannot relatively rotate between force application rod 11 with the second through hole, the cooperation of this key and keyway can also be led to the operation of force application rod 11.
Wherein, accompanying drawing 7 represents that key 25a is arranged on the second through hole, and keyway is arranged on force application rod 11; Accompanying drawing 8 represents that key 25b is arranged on the second through hole, and keyway is arranged on force application rod 11; Accompanying drawing 9 represents that key is arranged on force application rod 11, and keyway is arranged on the second through hole; Accompanying drawing 10 represents that key is arranged on force application rod 11, and keyway is arranged on the second through hole.Key 25a and 25c is flat key, and key 25b and 25d is spline.
Wherein, key is spline 25b or 25d, and its advantage mainly comprises:
1) contact tooth is more, and contact area is large, and guide effect is more reliable;
2) uniform force between force application rod 11 and the second through hole;
3) centering between force application rod 11 and the second through hole is good.
Embodiment three
See accompanying drawing 13 and accompanying drawing 14, the basis of the utility model embodiment one or embodiment two is improved, in the pipeline drainer that the utility model embodiment three provides, piston comprises piston only 9 and damped part 22, and damped part 22 is removably connected to piston only 9.In the pipeline drainer that the utility model embodiment three provides, because piston 9 often needs to perform the action proposed or press down, friction between itself and the inwall 12 of pressure cylinder 13 is frequent, after a long time use, piston 9 there will be certain wear extent, makes to occur gap between the inwall of piston 9 and pressure cylinder 13, when continuing application, the water be in the first chamber 8 can enter the second chamber 14 from this gap, thus affects its use.Plunger designs is become to comprise piston only 9 and damped part 22, after damped part 22 is removably connected to piston only 9, and the wear extent between the inwall 12 of pressure cylinder 13 appears on damped part 22, only need this damped part 22 pull down and change, the use of the pipeline drainer that the utility model embodiment three provides can not be affected.
In addition, the pipeline drainer that the utility model embodiment one ~ tri-provides is compared with existing pipeline drainer, and also tool has the following advantages:
1) existing dredging device is too small for caliber, or there is water back bending, and toilet, all there is the difficulty of bad dredging.This kind of pipe dredging device, too small for caliber, there is the curved pipeline of water and have significantly good dredging effect.
2) reduce use cost, this kind of dredging device, relative to the dredging device of seven or eight hundred yuan on market, reduces cost of production and user's purchase cost.
3) reduce operation easier, common dredging device needs professional to operate, this kind of dredging device, women, old man, and child all can operate.
Although described preferred embodiment of the present utility model, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. a pipeline drainer, is characterized in that, comprises filling head, pressure cylinder, piston, force application rod,
The first through hole is offered in described filling head,
Described pressure cylinder is divided into the first chamber, the second chamber by described piston,
Described first through hole and described first chamber,
Described force application rod is fixedly connected on described piston, and described force application rod is in described second chamber,
The inwall of described piston and described pressure cylinder forms sliding pair,
Described filling head is connected to the bottom of described pressure cylinder;
The internal diameter of described first through hole is less than the internal diameter of described pressure cylinder;
Described filling head is made up of the first flexible material, and the first flexible material described does not absorb water.
2. pipeline drainer according to claim 1, is characterized in that, also comprises tube connector, and described first through hole is connected to bottom described pressure cylinder by described tube connector, and described tube connector is made up of the second flexible material.
3. pipeline drainer according to claim 2, is characterized in that, also comprises elastomeric element, and it is outside that described elastomeric element is set in described tube connector, the coefficient of stiffiness of tube connector described in the coefficient of stiffiness > of described elastomeric element.
4. pipeline drainer according to claim 1, is characterized in that, also comprises handle, and described handle is connected to the free end of described force application rod.
5. pipeline drainer according to claim 4, it is characterized in that, described handle comprises hand rod, connecting portion, one end of described connecting portion is fixedly connected on described hand rod, the other end of described connecting portion is connected to described force application rod, and the top of described hand rod is provided with arc-shaped recess in the position of symmetry.
6. pipeline drainer according to claim 1, is characterized in that, also comprises end cap, described end cap offers the second through hole,
Described force application rod and described second through hole form sliding pair,
Described end cap lid is located at the top of described pressure cylinder.
7. pipeline drainer according to claim 6, is characterized in that, described end cap is provided with several third through-holes, and described second chamber is in communication with the outside by described third through-hole.
8. the pipeline drainer according to claim 6 or 7, is characterized in that, described force application rod is axially arranged with key along it, and described second through hole is provided with the keyway coordinated with described key,
Or,
Described force application rod is axially arranged with keyway along it, and described second through hole is provided with the keyway coordinated with described key.
9. pipeline drainer according to claim 8, is characterized in that, described key is spline.
10. pipeline drainer according to claim 1, is characterized in that, described piston comprises piston only and damped part, and described damped part is removably connected to described piston only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644308.XU CN204898805U (en) | 2015-08-25 | 2015-08-25 | Pipe dredge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644308.XU CN204898805U (en) | 2015-08-25 | 2015-08-25 | Pipe dredge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204898805U true CN204898805U (en) | 2015-12-23 |
Family
ID=54920993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520644308.XU Expired - Fee Related CN204898805U (en) | 2015-08-25 | 2015-08-25 | Pipe dredge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204898805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436840A (en) * | 2020-04-09 | 2020-07-24 | 邹友栓 | Water plug for pool |
-
2015
- 2015-08-25 CN CN201520644308.XU patent/CN204898805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436840A (en) * | 2020-04-09 | 2020-07-24 | 邹友栓 | Water plug for pool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180825 |