CN108730637B - Seepage-proofing embedded pipe - Google Patents
Seepage-proofing embedded pipe Download PDFInfo
- Publication number
- CN108730637B CN108730637B CN201810937647.5A CN201810937647A CN108730637B CN 108730637 B CN108730637 B CN 108730637B CN 201810937647 A CN201810937647 A CN 201810937647A CN 108730637 B CN108730637 B CN 108730637B
- Authority
- CN
- China
- Prior art keywords
- annular
- pipe body
- pipe
- wall
- straight pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000002265 prevention Effects 0.000 claims abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000009434 installation Methods 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/10—Sealing by using sealing rings or sleeves only
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The invention discloses an anti-seepage embedded pipe which comprises a straight pipe body, an annular drainage ring arranged on the outer circumference of the straight pipe body and an annular waterproof cap fixedly connected with the inner wall of the straight pipe body to form an annular slot, wherein the annular drainage ring is upwards inclined to form a water collecting tank with an inverted triangle section, the circumference of the straight pipe body is also provided with a through drainage hole, the drainage hole is positioned above the joint of the annular drainage ring and the straight pipe body and communicated with the inside of the straight pipe body, the drainage hole is positioned above the annular waterproof cap, and a sealing structure is arranged in the annular slot. The annular drain ring and the drain hole are matched, so that water penetrating into the gap between the embedded pipe and the floor layer plate can be timely discharged, and the anti-leakage effect is good. And moreover, the annular waterproof cap and the sealing structure can effectively prevent water from overflowing from the installation gap between the embedded pipe and the lower pipeline, and the seepage prevention effect is comprehensive.
Description
Technical Field
The invention belongs to the technical field of pipe fittings, and particularly relates to an anti-seepage embedded pipe.
Background
At present, in building installation engineering, a plurality of pipelines which need to pass through wallboards or floors are installed, some pipelines need to be antiseep, such as pipelines of toilets and roofs, and an embedded pipe needs to be placed when concrete is poured, so that leakage is avoided due to loose plugging, and later loss is caused, but although the embedded pipe is easy to leak, two conditions generally exist: firstly, after the embedded forming, concrete or cement can shrink, so that gaps appear between the embedded pipe and the floor laminate, and when water accumulation occurs on the upper layer, water can leak from the gaps to the lower layer; another is that when the amount of water flowing inside the buried pipe is large, water easily overflows from the gap between the buried pipe and the lower pipe to permeate to the lower layer.
Aiming at the first situation, the invention patent application with the application number 201510447792 discloses an anti-seepage embedded pipe, which comprises a pipe body with a water stop wing ring on the outer wall, wherein at least one transverse water stop groove coaxial with the pipe body is arranged on one end face of the water stop wing ring along the radial direction, at least one longitudinal water stop groove coaxial with the pipe body is arranged on the side face of the water stop wing ring along the circumferential direction, and the arranged transverse water stop groove and the longitudinal water stop groove can effectively prevent water seepage. However, this structure prevents the infiltration of water only for a certain period of time, water remains in the gap, and infiltration may occur when the gap is large or the water accumulation time is long.
Aiming at the second situation, the utility model patent application with the application number 201620168390 discloses a pre-buried pipe, which comprises an inner pipe and an outer pipe sleeved on the inner pipe, and further comprises an annular part fixedly connected with the inner wall of the inner pipe to form an annular slot, wherein the annular part comprises a connecting part connected with the inner wall of the inner pipe and a parallel part connected with the connecting part, the pipe fitting connected with the pre-buried pipe can be tightly combined by arranging the annular part, and a seam is positioned in the annular part, so that water directly flows to an inner opening of the pipe through the outer wall of the annular part, the possibility of leakage between the connection part of the pre-buried pipe and a lower pipe is greatly reduced, the device also has leakage risk, and if the lower pipe is blocked, the annular part cannot prevent the occurrence of leakage when the liquid level in the pre-buried pipe rises, so that the device still has room for improvement.
Disclosure of Invention
The invention aims to provide an anti-seepage embedded pipe which can effectively prevent leakage between the outer wall of the embedded pipe and a floor layer plate and between the inner wall of the embedded pipe and a lower pipeline.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides an prevention of seepage buried pipe in advance, includes the straight tube body, sets up annular drainage circle on the outer circumference of straight tube and with the annular waterproof cap of straight tube body inner wall fixed connection formation annular slot, still be provided with the wash port that link up on the straight tube body circumference, the wash port is located annular drainage circle and straight tube body junction top and intercommunication straight tube body are inside, the wash port is located annular waterproof cap top, be provided with seal structure in the annular slot.
Preferably, the inner wall below the drain hole is tightly attached to the annular drain ring, so that water on the annular drain ring can be conveniently and smoothly drained from the drain hole.
Preferably, the number of the drainage holes is at least six, and the drainage holes are symmetrically arranged on the circumference of the straight pipe body along the center axis of the straight pipe body, so that a sufficient drainage effect is ensured.
Preferably, the annular drainage ring is inclined upwards to form a water collecting tank with an inverted triangle section, and the inclination angle a is 30-45 degrees, so that leaked water can be conveniently collected and discharged.
Preferably, the annular drainage ring has a certain width b in the horizontal direction, the range of b is 1-5 cm, the installation is prevented from being influenced by overlarge width while the enough drainage capacity is ensured, and the specific width can be determined according to working conditions as required.
Preferably, the annular drainage ring is made of soft PE or soft PP-R materials, and deformation, setting and fracture of the annular drainage ring caused by molding shrinkage of floor laminate concrete or cement are avoided.
Preferably, the annular waterproof cap and the sealing structure can have several different expression forms, and the specific scheme is as follows:
First kind: the annular waterproof cap comprises an annular connecting part fixedly connected to the inner wall of the straight pipe body and an annular ring connected with the annular connecting part, the annular ring is parallel to the inner wall of the straight pipe body, the sealing structure is a sealing gasket arranged at the inner top of the annular waterproof cap, and when the annular waterproof cap is used, the top of the lower pipe is tightly attached to the sealing ring after the lower pipe is inserted into the annular waterproof cap.
Second kind: the annular waterproof cap comprises an annular connecting part fixedly connected to the inner wall of the straight pipe body and an annular ring connected with the connecting part, the annular ring is parallel to the inner wall of the straight pipe body, and the sealing structure is a sealing groove which is arranged in the annular waterproof cap and is inverted and has a U-shaped cross section.
Preferably, the sealing groove is made of rubber, and the width of a gap in the sealing groove is slightly smaller than the thickness of the pipe wall of the lower layer pipeline, so that the sealing effect is enhanced.
Preferably, a hard installation guide groove with a horn-shaped section is arranged at the opening of the sealing groove, so that the lower pipeline can be conveniently inserted.
Third kind: the waterproof cap of annular is a downward reducing pipe of top rigid coupling in the internal wall of straight tube, the diameter of reducing pipe diminishes from top to bottom in proper order, reducing pipe bottom to the internal wall direction horizontal extension of straight tube and upwards buckle at the tip, buckle with the reducing pipe forms an annular holding tank, put a cross-section in the holding tank and be circular shape ring seal, ring seal has good buoyancy, buckle with leave the clearance between the internal wall of straight tube for install lower floor's pipeline.
The principle of the scheme is as follows: the lower layer pipeline is inserted into the annular slot through a gap between the bending and the straight pipe body, and when the embedded pipe normally drains, only the annular waterproof cap plays a role in seepage prevention, and the sealing structure does not need to play a role. When the water displacement is too large or the lower pipeline is blocked to cause the water level in the annular slot to rise, the annular sealing ring in the annular accommodating groove floats upwards along with the water level until being clamped by the inner wall of the lower pipeline and the outer wall of the reducer pipe, and the buoyancy received by the annular sealing ring enables the annular sealing ring to be clung to the inner wall of the lower pipeline and the outer wall of the reducer pipe, so that a good sealing effect is achieved.
This scheme is for first two kinds of schemes, and the advantage lies in: the lower pipeline does not need to be tightly attached to a sealing gasket or a sealing groove, and good sealing effect can still be achieved when the installation of the lower pipeline is loosened or the specification of the lower pipeline is not fully corresponding to that of the embedded pipe.
Preferably, the width of the gap between the bending and the inner wall of the embedded pipe is smaller than the diameter of the annular sealing ring, so that the sealing ring is prevented from falling off.
Preferably, the included angle between the reducer pipe and the inner wall of the straight pipe body is c, the range of c is 10-15 degrees, the reducer pipe is ensured to be of a certain length, the sealing effect is convenient to achieve, and meanwhile the phenomenon that the diameter of the lower end of the reducer pipe is too small to influence normal drainage is avoided.
The invention has the beneficial effects that: the annular drain ring is matched with the drain hole, so that water penetrating into gaps between the embedded pipe and the floor laminate can be timely discharged, and the anti-leakage effect is good. And moreover, the annular waterproof cap and the sealing structure can effectively prevent water from overflowing from the installation gap between the embedded pipe and the lower pipeline, and the seepage prevention effect is comprehensive.
Drawings
Fig. 1 is a top view of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a partial enlarged view of the sealing structure of embodiment 2 of the present invention.
Fig. 5 is a schematic view showing the structure of the installation guide groove of embodiment 3 of the present invention.
Fig. 6 is a schematic structural diagram of embodiment 4 of the present invention.
Fig. 7 is a partially enlarged view of the annular waterproof cap and the sealing structure of embodiment 4 of the present invention.
Fig. 8 is a schematic view of the structure of the ring seal in embodiment 4 of the present invention when the ring seal is floating upward.
The drawings are respectively as follows: the water-collecting pipe comprises a straight pipe body 1, an annular water draining ring 2, an annular slot 3, an annular waterproof cap 4, a water draining hole 5, a sealing structure 6, a water collecting tank 7, an annular connecting part 8, an annular ring 9, a sealing gasket 10, a lower pipe 11, a sealing groove 12, a mounting guide groove 13, a reducing pipe 14, a bending pipe 15, an annular containing groove 16, an annular sealing ring 17, an inclined angle a, a width b and an included angle c.
Detailed Description
The technical scheme of the present invention will be described in detail with reference to the examples and the accompanying drawings.
Example 1
As shown in fig. 1-2, an anti-seepage embedded pipe comprises a straight pipe body 1, an annular drain ring 2 arranged on the outer circumference of the straight pipe body 1 and an annular waterproof cap 4 fixedly connected with the inner wall of the straight pipe body 1 to form an annular slot 3, a through drain hole 5 is further formed in the circumference of the straight pipe body 1, the drain hole 5 is located above the joint of the annular drain ring 2 and the straight pipe body 1 and is communicated with the inside of the straight pipe body 1, the drain hole 5 is located above the annular waterproof cap 4, and a sealing structure 6 is arranged in the annular slot 3.
Wherein, the inner wall below the drain hole 5 is tightly attached to the annular drain ring 2, so that the water on the annular drain ring 2 can be smoothly drained from the drain hole 5.
As shown in fig. 1, the drain holes 5 are at least six, and are symmetrically arranged on the circumference of the straight pipe body 1 along the center axis of the straight pipe body 1, so as to ensure a sufficient drain effect.
As shown in fig. 2, the annular drainage ring 2 is inclined upwards to form a water collecting tank 7 with an inverted triangle cross section, and the inclination angle a is 30 ° to 45 °, and in this embodiment, 30 ° is preferred, so as to facilitate collection and drainage of leaked water.
In addition, the annular drainage ring 2 has a certain width b in the horizontal direction, the range of b is 1-5 cm, the preferred range of the embodiment is 3 cm, the installation is prevented from being influenced by overlarge width while the sufficient drainage capacity is ensured, and the specific width can be determined according to working conditions as required.
In this embodiment, the annular drain ring 2 is made of soft PE or soft PP-R, so as to avoid deformation and fracture of the annular drain ring 2 caused by shrinkage of floor slab concrete or cement.
As shown in fig. 2, the annular waterproof cap 4 includes an annular connecting portion 8 fixedly connected to the inner wall of the straight pipe body 1 and an annular ring 9 connected to the annular connecting portion 8, the annular ring is parallel to the inner wall of the straight pipe body 1, the sealing structure 6 is a sealing gasket 10 disposed at the inner top of the annular waterproof cap 4, and when in use, the top of the lower pipeline 11 is tightly attached to the sealing ring 10 after being inserted into the annular slot 3.
Example 2
The technical scheme of this embodiment is basically the same as embodiment 1, except that:
As shown in fig. 1,3 and 4, the sealing structure 6 is an inverted U-shaped sealing groove 12 provided in the annular waterproof cap 4, and in use, an end portion of the lower pipe 11 is inserted into the sealing groove 12.
The seal groove 12 is made of rubber, and the width of a gap in the groove is slightly smaller than the thickness of the pipe wall of the lower layer pipeline, so that the sealing effect is enhanced.
Example 3
This example is based on example 2, with the difference that:
as shown in fig. 5, a hard mounting guide groove 13 with a horn-shaped cross section is provided at the opening of the sealing groove 12, so that the lower pipe 11 can be inserted.
Example 4
The technical scheme of this embodiment is basically the same as embodiment 1, except that:
As shown in fig. 6 or 7, the annular waterproof cap 4 is a downward reducer pipe 14 with a top end fixedly connected to the inner wall of the straight pipe body 1, the diameter of the reducer pipe 14 is sequentially reduced from top to bottom, the bottom end of the reducer pipe 14 horizontally extends towards the inner wall of the straight pipe body 1 and is bent 15 at the end part upwards, the bent 15 and the reducer pipe 14 form an annular accommodating groove 16, an annular sealing ring 17 with a circular section is placed in the accommodating groove 16, the annular sealing ring 17 has good buoyancy, and a gap is reserved between the bent 15 and the inner wall of the straight pipe body 1 for installing the lower layer pipeline 11.
The principle of the scheme is as follows: the lower pipeline 11 is inserted into the annular slot through the gap between the bending 15 and the straight pipe body 1, when the embedded pipe normally drains, only the annular waterproof cap 4 plays a role in seepage prevention, and the sealing structure 6 does not need to play a role. When the water discharge is excessive or the lower pipeline 11 is blocked to cause the water level in the annular slot 3 to rise, the annular sealing ring 17 in the annular accommodating groove 16 floats up along with the water level until being clamped by the inner wall of the lower pipeline 11 and the outer wall of the reducer pipe 14, and the annular sealing ring 17 is tightly attached to the inner wall of the lower pipeline 11 and the outer wall of the reducer pipe 14 due to buoyancy, as shown in fig. 8, so that a good sealing effect is achieved.
This scheme is for first two kinds of schemes, and the advantage lies in: the lower pipeline 11 does not need to be tightly attached to the sealing gasket 10 or the sealing groove 12, and good sealing effect can still be achieved when the installation of the lower pipeline 11 is loosened or the specification of the lower pipeline 11 is not fully corresponding to that of the embedded pipe.
As shown in fig. 7, the included angle between the outer wall 14 of the reducer pipe and the inner wall of the straight pipe body 1 is c, the range of c is 10-15 degrees, a certain length of the reducer pipe 14 is ensured, the sealing effect is convenient to realize, and the diameter of the lower end of the reducer pipe 14 is prevented from being too small, so that normal drainage is prevented from being influenced.
Further, the gap width between the bend 15 and the inner wall of the straight pipe body 1 is smaller than the diameter of the annular sealing ring 17, so that the annular sealing ring 17 is prevented from falling off.
Claims (2)
1. The utility model provides an prevention of seepage buried pipe in advance, includes the straight tube body, sets up annular drainage circle on the outer circumference of straight tube and with the annular waterproof cap of straight tube body inner wall fixed connection formation annular slot, its characterized in that: the annular drain ring is inclined upwards to form a water collecting tank with an inverted triangle cross section, a through drain hole is further formed in the circumference of the straight pipe body, the drain hole is positioned above the joint of the annular drain ring and the straight pipe body and is communicated with the inside of the straight pipe body, the drain hole is positioned above the annular waterproof cap, and a sealing structure is arranged in the annular slot;
The annular waterproof cap is a downward reducer pipe with the top end fixedly connected to the inner wall of the straight pipe body, the diameter of the reducer pipe gradually decreases from top to bottom, the bottom end of the reducer pipe horizontally extends towards the inner wall of the straight pipe body and is bent upwards at the end part, the bending and the reducer pipe form an annular accommodating groove, an annular sealing ring with a circular section is arranged in the annular accommodating groove, the annular sealing ring has good buoyancy, and a gap is reserved between the bending and the inner wall of the straight pipe body;
the width of the gap between the bending and the inner wall of the embedded pipe is smaller than the diameter of the section of the annular sealing ring;
the inner wall below the drain hole is tightly attached to the annular drain ring.
2. An impermeable pre-buried pipe as defined in claim 1, wherein: the included angle between the reducer pipe and the inner wall of the straight pipe body is c, and the range of c is 10-15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937647.5A CN108730637B (en) | 2018-08-17 | 2018-08-17 | Seepage-proofing embedded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937647.5A CN108730637B (en) | 2018-08-17 | 2018-08-17 | Seepage-proofing embedded pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730637A CN108730637A (en) | 2018-11-02 |
| CN108730637B true CN108730637B (en) | 2024-09-06 |
Family
ID=63942949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810937647.5A Active CN108730637B (en) | 2018-08-17 | 2018-08-17 | Seepage-proofing embedded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108730637B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498320B (en) * | 2020-04-28 | 2022-01-04 | 四川鑫蕊建筑工程有限公司 | FF buried oil tank with anti-seepage well seat |
| CN112681535B (en) * | 2020-12-21 | 2022-02-01 | 江苏华磊建设集团有限公司 | Waterproof sealing assembly for vertical floor penetrating pipeline and leakage detection and construction method thereof |
| CN112962640B (en) * | 2021-01-23 | 2022-04-12 | 上海友海建设工程有限公司 | Waterproof drainage device for hydraulic engineering construction and use method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493543A (en) * | 2011-11-29 | 2012-06-13 | 中建七局第三建筑有限公司 | Drainage pipeline root ponding antipercolator |
| CN106759691A (en) * | 2016-12-19 | 2017-05-31 | 韩冠杰 | A kind of anti-backflow downcomer with filtering function |
| CN208793812U (en) * | 2018-08-17 | 2019-04-26 | 浙江康泰管业科技有限公司 | A kind of antiseepage built-in pipe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2461980Y (en) * | 2000-12-30 | 2001-11-28 | 沈剑 | Novel peculiar smell preventing floor drain |
| CN2886283Y (en) * | 2006-01-23 | 2007-04-04 | 威皇塑料工业(昆山)有限公司 | Leakproof pipe sleeve |
| FR3047291B1 (en) * | 2016-01-29 | 2018-07-13 | Rikksen | ANNULAR RING FOR SEALING BETWEEN TWO CONDUITS, IN PARTICULAR FOR THE BUILDING |
-
2018
- 2018-08-17 CN CN201810937647.5A patent/CN108730637B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493543A (en) * | 2011-11-29 | 2012-06-13 | 中建七局第三建筑有限公司 | Drainage pipeline root ponding antipercolator |
| CN106759691A (en) * | 2016-12-19 | 2017-05-31 | 韩冠杰 | A kind of anti-backflow downcomer with filtering function |
| CN208793812U (en) * | 2018-08-17 | 2019-04-26 | 浙江康泰管业科技有限公司 | A kind of antiseepage built-in pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108730637A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108730637B (en) | Seepage-proofing embedded pipe | |
| CN201778366U (en) | Sinking-type leak-proof system for toilet | |
| CN2801923Y (en) | Concrete built-in anti-leakage special casing pipe | |
| CN201195867Y (en) | Water seepage prevention floor drain | |
| CN208792438U (en) | A kind of double standpipes band water seal is from ventilation draining sub-assembly | |
| CN102127920A (en) | Waterlogging draining method between floors | |
| CN203891185U (en) | Anti-seepage water-receiving floor drain | |
| CN208793812U (en) | A kind of antiseepage built-in pipe | |
| CN205975844U (en) | Single riser swirler of jam is prevented to leak protection water | |
| CN202430814U (en) | Embedded pipe joint | |
| CN201202121Y (en) | Foundation pit drainpipe net | |
| CN211735694U (en) | Drainage mounting structure comprising main floor drain and auxiliary floor drain | |
| CN211665888U (en) | Flat-opening type drainage floor drain structure without water seal | |
| CN209941803U (en) | Drainage and water leakage flow guider | |
| CN201170382Y (en) | Seepage-proof pipe sleeve | |
| CN209873999U (en) | City utility tunnel drainage pipe inserts a mouth tube coupling | |
| KR20140016029A (en) | Drainageway | |
| CN106869289A (en) | One kind building same-layer floor drain | |
| CN216007152U (en) | Water supply and drainage system | |
| CN207988103U (en) | A kind of novel eccentric error-tolerance type floor drain component | |
| CN114045880A (en) | Basement post-cast strip treatment process | |
| CN207776016U (en) | A kind of toilet leak-proof device | |
| CN209837121U (en) | Anti structure of floating of basement bottom plate | |
| CN219952129U (en) | Pre-buried cast iron same-layer drainage collector | |
| CN220080238U (en) | Drain pipe backflow preventer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240812 Address after: 522000 Xichang Town Xidong Village Dawei Shixiang, Jiedong County, Jieyang City, Guangdong Province Applicant after: Lin Aishan Country or region after: China Address before: 313000 West Shuangshan Road, Economic Development Zone, Deqing County, Huzhou City, Zhejiang Province Applicant before: ZHEJIANG KANGTAI PIPE INDUSTRY TECHNOLOGY CO.,LTD. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |