CN210179117U - Connecting structure for laying water supply pipes - Google Patents

Connecting structure for laying water supply pipes Download PDF

Info

Publication number
CN210179117U
CN210179117U CN201920983823.9U CN201920983823U CN210179117U CN 210179117 U CN210179117 U CN 210179117U CN 201920983823 U CN201920983823 U CN 201920983823U CN 210179117 U CN210179117 U CN 210179117U
Authority
CN
China
Prior art keywords
fixedly connected
flange
water supply
threaded rod
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920983823.9U
Other languages
Chinese (zh)
Inventor
Fanhua Meng
孟凡华
Hongyan Liu
刘红艳
Jingdong Wang
王敬东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jingmen Planning Survey Design And Research Institute
Original Assignee
Jingmen Planning Survey Design And Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jingmen Planning Survey Design And Research Institute filed Critical Jingmen Planning Survey Design And Research Institute
Priority to CN201920983823.9U priority Critical patent/CN210179117U/en
Application granted granted Critical
Publication of CN210179117U publication Critical patent/CN210179117U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The utility model belongs to the drainage construction field, in particular to a water supply pipe laying connection structure, aiming at the problem that the connection of two water supply pipes is not tight enough and water seepage is easy to occur, the following proposal is proposed, which comprises a first water pipe, a second water pipe, a first flange and a second flange, the top of the second flange is fixedly connected with a fixed pin, the top and the bottom of the fixed pin are both provided with a clamping groove, the top of the first flange is fixedly connected with a fixed seat, the fixed seat is provided with an installation cavity, a threaded rod is rotatably connected on one side inner wall of the installation cavity, the threaded rod is symmetrically connected with two threaded pipes, the threaded pipes are internally connected with a movable plate, the utility model has reasonable structure, a clamping plate can be clamped into the clamping groove by rotating a handle to connect the first water pipe and the second water pipe, the connection mode is convenient and fast, and the compactness is high, and the water leakage can be effectively prevented.

Description

Connecting structure for laying water supply pipes
Technical Field
The utility model relates to a drainage construction technical field especially relates to a connection structure is laid to feed pipe.
Background
The water pipe is a water supply pipeline, modern decoration water pipes are constructed in a wall-buried mode, the water pipes are classified into three types, the first type is a metal pipe such as an inner-lined plastic hot-dip cast iron pipe, a copper pipe, a stainless steel pipe and the like, the second type is a plastic composite metal pipe such as a plastic composite steel pipe, an aluminum-plastic composite pipe and the like, and the third type is a plastic pipe such as PB, PP-R and the like.
The notice number is: CN204628839 Chinese patent is established and drainage construction technical field discloses a connection structure lays of clean type feed pipe of high strength, including the feed pipe that two levels were arranged, connect through the connecting pipe between two feed pipes, all be provided with the mounting on the left side section and the right side section of feed pipe, all be provided with an annular on the left side section and the right side section of feed pipe, the mounting includes fastener and lower fastener, will go up fastener and lower fastener locking in annular department through two bolts, the appearance of mounting is regular hexagon, be provided with cross brace rod in the connecting pipe, the brace rod is put on the shelf and is equipped with the filter screen, consequently the utility model discloses the connection structure lays of clean type feed pipe of high strength has safe and reliable, and long service life is convenient for lay the advantage of location.
The adjacent water supply pipes in the technical scheme are mutually abutted, and because the end parts of the water supply pipes are not smooth enough, the connection of the two water supply pipes is not tight enough, and the water seepage condition is easy to occur, a water supply pipe laying connection structure is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects that the connection of two water supply pipes is not tight enough and the water seepage is easy to happen in the prior art, and providing a connection structure for laying water supply pipes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a connection structure is laid to feed pipe, includes first water pipe, second water pipe, first flange and second flange, the top fixedly connected with fixed pin of second flange, the draw-in groove has all been seted up to the top and the bottom of fixed pin, the top fixedly connected with fixing base of first flange, be equipped with the installation cavity on the fixing base, it is connected with the threaded rod to rotate on one side inner wall of installation cavity, symmetrical transmission is connected with two screwed pipes on the threaded rod, screwed pipe female connection has the movable plate, and two movable plate screw threads are opposite, sliding connection has the chucking board on the movable plate, the chucking board clamps mutually with the draw-in groove, through the rotation of threaded rod, can make two chucking integrated circuit boards go into the draw-in groove in, can be fast with first water pipe and second water piping connection, and closely the degree is high.
Preferably, the threaded rod is connected with two rotating shafts in a symmetrical transmission mode, the two rotating shafts are connected with rotating plates in an equal and fixedly connected mode, one ends of the two rotating shafts are far away from each other, the two sides of each rotating plate are fixedly connected with the inner walls of the two sides of the threaded pipe, one sides of the two moving plates are far away from each other and are fixedly connected with pull rods, one ends of the two pull rods are far away from each other and are fixedly connected with sliding plates, the bottom of each sliding plate is fixedly connected with the top of each clamping plate, the fixing seat is located on one side of the installation cavity, the bottom of each.
Preferably, the sliding tray has been seted up to the one end of threaded rod, sliding connection has the limiting plate in the sliding tray, one side fixedly connected with dead lever of limiting plate, the one end of dead lever runs through one side inner wall of installation cavity and extends to the outside of fixing base, the one end fixedly connected with handle of dead lever sets up the handle, can provide rotation power for the threaded rod.
Preferably, fixed cover is equipped with first bevel gear on the threaded rod, and the one end that two pivots are close to each other all is fixed the cover and is equipped with the second bevel gear, the second bevel gear all meshes with first bevel gear mutually, sets up first bevel gear and second bevel gear, can provide power for the pivot.
Preferably, the bearing is fixedly connected to the inner wall of the other side of the mounting cavity, the other end of the threaded rod penetrates through the bearing and is fixedly connected with the inner ring of the bearing, and the bearing is arranged, so that the threaded rod can conveniently rotate.
Preferably, the other side fixedly connected with spring of limiting plate, the one end of spring and the one side inner wall fixed connection of sliding tray set up the spring, can provide reset power for the dead lever.
Preferably, the outer ring gear of one side fixedly connected with of fixing base, fixed cover are equipped with interior ring gear on the dead lever, interior ring gear meshes with outer ring gear mutually, the equal sealed fixedly connected with of one side of first flange and second flange seals up, and through the meshing of outer ring gear and interior ring gear, can carry out spacingly to the handle, makes the handle can not take place unexpected the rotation.
The utility model discloses in, a connection structure is laid to feed pipe, owing to set up fixed pin and fixing base, make the fixed pin remove insert the fixed slot in, then through rotating the handle, can make two chucking boards remove to the direction that is close to each other, and then can go into the draw-in groove on the fixed pin with the chucking integrated circuit board in, two sealed pads are at this moment also closely laminated, make first water pipe and second water pipe high-speed joint like this, and compactness.
Owing to set up outer ring gear and interior ring gear, can make interior ring gear break away from the meshing of outer ring gear through the pulling handle, the spring is in tensile state this moment, makes things convenient for the handle to rotate, clamps the back when chucking board and draw-in groove, under the effect of spring, makes interior ring gear mesh with outer ring gear again, can be fixed current position, makes first water pipe and second water piping connection more fasten.
The utility model discloses rational in infrastructure, can go into the draw-in groove with the chucking integrated circuit board through rotating the handle in, with first water pipe and second water piping connection, such connected mode convenient and fast, and closely the degree is high, can effectively prevent the water seepage.
Drawings
Fig. 1 is a schematic view of a separated front view structure of a water supply pipe laying and connecting structure provided by the present invention;
FIG. 2 is a schematic view of a connection structure for laying water supply pipes according to the present invention;
fig. 3 is an enlarged schematic structural view of a portion a of a water supply pipe laying connection structure provided by the present invention;
fig. 4 is an enlarged schematic structural diagram of a portion B of the connection structure for laying water supply pipes according to the present invention.
In the figure: the device comprises a first water pipe 1, a first flange 2, a second water pipe 3, a second flange 4, a sealing gasket 5, a fixing pin 6, a fixing seat 7, an installation cavity 8, a threaded rod 9, a handle 10, a rotating shaft 11, a rotating plate 12, a threaded pipe 13, a moving plate 14, a pull rod 15, a sliding plate 16, a clamping plate 17, a first bevel gear 18, a second bevel gear 19, a bearing 20, a fixing rod 21, a sliding groove 22, a limiting plate 23, a spring 24, an external toothed ring 25 and an internal toothed ring 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-4, a connection structure is laid to feed pipe, including first water pipe 1, second water pipe 3, first flange 2 and second flange 4, the top fixedly connected with fixed pin 6 of second flange 4, the draw-in groove has all been seted up to the top and the bottom of fixed pin 6, the top fixedly connected with fixing base 7 of first flange 2, be equipped with installation cavity 8 on fixing base 7, it has threaded rod 9 to rotate on one side inner wall of installation cavity 8, symmetrical transmission is connected with two screwed pipes 13 on threaded rod 9, screwed pipe 13 female connection has movable plate 14, two movable plate 14 screw threads are opposite, sliding connection has chucking plate 17 on movable plate 14, chucking plate 17 clamps with the draw-in groove mutually.
The utility model discloses in, the symmetry transmission is connected with two pivots 11 on the threaded rod 9, the equal fixedly connected with rotor plate 12 of one end that two pivots 11 kept away from each other, the both sides of rotor plate 12 and the both sides inner wall fixed connection of screwed pipe 13, the equal fixedly connected with pull rod 15 in one side that two movable plates 14 kept away from each other, the equal fixed connection sliding plate 16 of one end that two pull rods 15 kept away from each other, sliding plate 16's bottom and the top fixed connection of chucking board 17, the fixed slot has been seted up to one side that fixing base 7 is located installation cavity 8, the bottom of chucking board 17 extends to in the fixed slot.
The utility model discloses in, the sliding tray 22 has been seted up to the one end of threaded rod 9, and sliding connection has limiting plate 23 in the sliding tray 22, one side fixedly connected with dead lever 21 of limiting plate 23, and one end of dead lever 21 runs through one side inner wall of installation cavity 8 and extends to the outside of fixing base 7, the one end fixedly connected with handle 10 of dead lever 21.
The utility model discloses in, fixed cover is equipped with first bevel gear 18 on the threaded rod 9, and the one end that two pivots 11 are close to each other is all fixed the cover and is equipped with second bevel gear 19, and second bevel gear 19 all meshes with first bevel gear 18 mutually.
The utility model discloses in, fixedly connected with bearing 20 on the opposite side inner wall of installation cavity 8, the other end of threaded rod 9 run through bearing 20 and with bearing 20's inner circle fixed connection.
The utility model discloses in, limiting plate 23's opposite side fixedly connected with spring 24, one end of spring 24 and one side inner wall fixed connection of sliding tray 22.
The utility model discloses in, one side fixedly connected with outer ring gear 25 of fixing base 7, fixed cover are equipped with interior ring gear 26 on the dead lever 21, and interior ring gear 26 meshes with outer ring gear 25 mutually, and the equal sealed fixedly connected with of one side of first flange 2 and second flange 4 seals up 5.
Example two
Referring to fig. 1, a water supply pipe laying connection structure comprises a first water pipe 1, a second water pipe 3, a first flange 2 and a second flange 4, wherein a fixed pin 6 is welded on the top of the second flange 4, clamping grooves are formed in the top and the bottom of the fixed pin 6, a fixed seat 7 is welded on the top of the first flange 2, an installation cavity 8 is arranged on the fixed seat 7, a threaded rod 9 is rotatably connected on the inner wall of one side of the installation cavity 8, two threaded pipes 13 are symmetrically and drivingly connected on the threaded rod 9, a movable plate 14 is connected in the threaded pipes 13 in a threaded manner, the threads of the two movable plates 14 are opposite, a clamping plate 17 is slidably connected on the movable plate 14, the clamping plate 17 is clamped with the clamping grooves, the two clamping plates 17 can be clamped into the clamping grooves through the rotation of the threaded rod 9, the first water pipe 1 and the second water pipe 3 can be quickly connected, the tightness is high, and, the fixing pin 6 is inserted into the fixing groove in a moving way, then the two clamping plates 17 can be moved towards the direction close to each other by rotating the handle 10, and further the clamping plates 17 can be clamped into the clamping groove on the fixing pin 6, the two sealing gaskets 5 are tightly attached at the moment, so that the first water pipe 1 and the second water pipe 3 are quickly connected, and the tightness is ensured, because the outer toothed ring 25 and the inner toothed ring 26 are arranged, the inner toothed ring 26 can be separated from the meshing of the outer toothed ring 25 by pulling the handle 10, the spring 24 is in a stretching state at the moment, the handle 10 is convenient to rotate, after the clamping plates 17 are clamped with the clamping groove, the inner toothed ring 26 is meshed with the outer toothed ring 25 again under the action of the spring 24, the current position can be fixed, and the connection of the first water pipe 1 and the second water pipe 3 is more fastened, the utility model has reasonable structure, the clamping plates 17 can be clamped into the clamping groove by rotating the handle 10, connect first water pipe 1 and second water pipe 3, such connected mode convenient and fast, and closely the degree height can effectively prevent the water seepage.
The utility model discloses in, the symmetry transmission is connected with two pivots 11 on the threaded rod 9, the equal fixedly connected with rotor plate 12 of one end that two pivots 11 kept away from each other, the both sides of rotor plate 12 and the both sides inner wall of screwed pipe 13 weld mutually, one side that two movable plates 14 kept away from each other all welds pull rod 15, the equal welding sliding plate 16 of one end that two pull rods 15 kept away from each other, sliding plate 16's bottom welds with the top of chucking plate 17 mutually, the fixed slot has been seted up to one side that fixing base 7 is located installation cavity 8, the bottom of chucking plate 17 extends to in the fixed slot, through setting up pivot 11, can drive rotor plate 12 and rotate, can provide power for the screwed pipe.
The utility model discloses in, sliding tray 22 has been seted up to the one end of threaded rod 9, and sliding connection has limiting plate 23 in sliding tray 22, and the welding of one side of limiting plate 23 has dead lever 21, and one side inner wall that installation cavity 8 was run through to the one end of dead lever 21 extends to the outside of fixing base 7, and the welding of the one end of dead lever 21 has handle 10, sets up handle 10, can provide rotation power for threaded rod 9.
The utility model discloses in, fixed cover is equipped with first bevel gear 18 on the threaded rod 9, and the one end that two pivots 11 are close to each other is all fixed to be equipped with second bevel gear 19, and second bevel gear 19 all meshes with first bevel gear 18 mutually, sets up first bevel gear 18 and second bevel gear 19, can provide power for pivot 11.
The utility model discloses in, the welding has bearing 20 on the opposite side inner wall of installation cavity 8, and the other end of threaded rod 9 runs through bearing 20 and welds mutually with the inner circle of bearing 20, sets up bearing 20, can make things convenient for the rotation of threaded rod 9.
The utility model discloses in, the opposite side welding of limiting plate 23 has spring 24, and spring 24's one end welds with one side inner wall of sliding tray 22 mutually, sets up spring 24, can provide the power that resets for dead lever 21.
The utility model discloses in, the welding of one side of fixing base 7 has outer ring gear 25, and fixed cover is equipped with interior ring gear 26 on the dead lever 21, and interior ring gear 26 meshes with outer ring gear 25 mutually, and one side of first flange 2 and second flange 4 is sealed gluey all to be glued has sealed the pad 5, through the meshing of outer ring gear 25 and interior ring gear 26, can carry on spacingly to handle 10, makes handle 10 can not the unexpected rotation.
In the utility model, when the second water pipe 3 is butted with the first water pipe 1, the second water pipe 3 is firstly pushed to approach the first water pipe 1, so that the fixing pin 6 enters the fixing groove, then the handle 10 is pulled outwards, the inner ring gear 26 is separated from the meshing of the outer ring gear 25 by the fixing rod 21, at this time, the limiting plate 23 can stretch the spring 24, then the handle 10 is rotated, the handle 10 drives the threaded rod 9 to rotate, the threaded rod 9 drives the first bevel gear 18 to rotate, the first bevel gear 18 drives the two second bevel gears 19 to rotate, and further the rotating shaft 11 can be rotated, the rotating shaft 11 drives the rotating plate 12 to rotate, the rotating plate 12 drives the threaded pipe 13 to rotate, so that the two moving plates 14 can move towards the direction of approaching each other, and further the sliding plates 16 can approach each other by the pull rod 15, so that the two clamping plates 17 approach each other to move, and the clamping plates 17 can be clamped into the clamping groove, then the handle 10 stops rotating, the handle 10 is pushed to move inwards, the inner toothed ring 26 and the outer toothed ring 25 are meshed again under the action of the spring 24, the current position is fixed, and at the moment, the two sealing gaskets 5 are tightly attached to prevent water seepage.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. A water supply pipe laying and connecting structure comprises a first water pipe (1), a second water pipe (3), a first flange (2) and a second flange (4), it is characterized in that the top of the second flange (4) is fixedly connected with a fixed pin (6), the top and the bottom of the fixed pin (6) are both provided with a clamping groove, the top of the first flange (2) is fixedly connected with a fixed seat (7), a mounting cavity (8) is arranged on the fixed seat (7), a threaded rod (9) is rotatably connected on the inner wall of one side of the mounting cavity (8), two threaded pipes (13) are symmetrically connected on the threaded rod (9) in a transmission way, the thread pipe (13) is internally threaded with a moving plate (14), the threads of the two moving plates (14) are opposite, the movable plate (14) is connected with a clamping plate (17) in a sliding mode, and the clamping plate (17) is clamped with the clamping groove.
2. The water supply pipe laying connection structure according to claim 1, wherein two rotating shafts (11) are symmetrically connected to the threaded rod (9) in a transmission manner, one ends of the two rotating shafts (11) far away from each other are fixedly connected with rotating plates (12), two sides of each rotating plate (12) are fixedly connected with inner walls of two sides of the threaded pipe (13), one sides of the two moving plates (14) far away from each other are fixedly connected with pull rods (15), one ends of the two pull rods (15) far away from each other are fixedly connected with sliding plates (16), the bottom of each sliding plate (16) is fixedly connected with the top of each clamping plate (17), one side of the fixed seat (7) located on the installation cavity (8) is provided with a fixed groove, and the bottom of each clamping plate (17) extends into the fixed groove.
3. The water supply pipe laying connection structure as claimed in claim 1, wherein a sliding groove (22) is formed at one end of the threaded rod (9), a limiting plate (23) is slidably connected in the sliding groove (22), a fixing rod (21) is fixedly connected to one side of the limiting plate (23), one end of the fixing rod (21) penetrates through an inner wall of one side of the installation cavity (8) and extends to the outer side of the fixing seat (7), and a handle (10) is fixedly connected to one end of the fixing rod (21).
4. A water supply pipe laying connection structure as claimed in claim 1, characterized in that a first bevel gear (18) is fixedly sleeved on the threaded rod (9), a second bevel gear (19) is fixedly sleeved on each end of the two rotating shafts (11) close to each other, and the second bevel gears (19) are engaged with the first bevel gears (18).
5. The water supply pipe laying connection structure as claimed in claim 1, wherein a bearing (20) is fixedly connected to the other side inner wall of the mounting chamber (8), and the other end of the threaded rod (9) penetrates through the bearing (20) and is fixedly connected with the inner ring of the bearing (20).
6. The water supply pipe laying connection structure according to claim 3, wherein a spring (24) is fixedly connected to the other side of the limit plate (23), and one end of the spring (24) is fixedly connected to the inner wall of one side of the sliding groove (22).
7. A water supply pipe laying connection structure as claimed in claim 1, wherein an external toothed ring (25) is fixedly connected to one side of said fixing base (7), an internal toothed ring (26) is fixedly sleeved on the fixing rod (21), said internal toothed ring (26) is engaged with the external toothed ring (25), and a sealing gasket (5) is fixedly and hermetically connected to one side of said first flange (2) and one side of said second flange (4).
CN201920983823.9U 2019-06-27 2019-06-27 Connecting structure for laying water supply pipes Expired - Fee Related CN210179117U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920983823.9U CN210179117U (en) 2019-06-27 2019-06-27 Connecting structure for laying water supply pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920983823.9U CN210179117U (en) 2019-06-27 2019-06-27 Connecting structure for laying water supply pipes

Publications (1)

Publication Number Publication Date
CN210179117U true CN210179117U (en) 2020-03-24

Family

ID=69839171

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920983823.9U Expired - Fee Related CN210179117U (en) 2019-06-27 2019-06-27 Connecting structure for laying water supply pipes

Country Status (1)

Country Link
CN (1) CN210179117U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112212102A (en) * 2020-10-03 2021-01-12 万小娟 Universal type asphalt development tank pipe orifice connecting mechanism
CN112253758A (en) * 2020-09-15 2021-01-22 西藏道一科技设备有限公司 Wear-resisting breather valve in plateau
CN112657086A (en) * 2020-12-19 2021-04-16 张维 Embedded spray set for building fire engineering

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253758A (en) * 2020-09-15 2021-01-22 西藏道一科技设备有限公司 Wear-resisting breather valve in plateau
CN112253758B (en) * 2020-09-15 2022-08-19 西藏道一科技设备有限公司 Wear-resisting breather valve in plateau
CN112212102A (en) * 2020-10-03 2021-01-12 万小娟 Universal type asphalt development tank pipe orifice connecting mechanism
CN112657086A (en) * 2020-12-19 2021-04-16 张维 Embedded spray set for building fire engineering

Similar Documents

Publication Publication Date Title
CN210179117U (en) Connecting structure for laying water supply pipes
CN108443614B (en) Sealing device for pipeline connection
CN207034453U (en) A kind of Water supplying tube joint
CN216751627U (en) Connecting piece for pentagonal torque tube and driving device
CN215173014U (en) Quick flange mounting device
CN210566851U (en) Pipeline filter convenient to change
CN210031822U (en) Anti-overflow device for grouting
CN210587797U (en) Welding needle adjusting device used in automatic welding equipment
CN219975741U (en) Flange plate convenient to install
CN213332939U (en) Flange capable of preventing rotation and falling
CN214093568U (en) Oil gas gathering and transportation pipeline prevents leaking detection and plugging device
CN220015187U (en) Subway shield segment
CN217207866U (en) Novel two-position three-way electromagnetic valve
CN213658320U (en) Novel oil field environment-friendly leak protection sample device
CN220337710U (en) Seepage-proofing structure of water conservancy construction pipeline
CN210318945U (en) Hardware valve fitting convenient to install
CN217927660U (en) Water supply and drainage pipeline connecting device
CN212361102U (en) Anti-seepage pipeline structure connecting structure
CN221034436U (en) Municipal administration water supply and drainage pipeline connection structure
CN218761867U (en) Protection connection structure
CN216046006U (en) Municipal administration water supply and drainage pipeline connection structure
CN217463713U (en) Metal leaking stoppage sleeve
CN218152826U (en) External joint with high tightness
CN219493387U (en) Pipeline sealing structure
CN211040008U (en) Ground source heat pump water pipe sealing device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200324

CF01 Termination of patent right due to non-payment of annual fee