KR20110107990A - A pipe connector - Google Patents
A pipe connector Download PDFInfo
- Publication number
- KR20110107990A KR20110107990A KR1020100027224A KR20100027224A KR20110107990A KR 20110107990 A KR20110107990 A KR 20110107990A KR 1020100027224 A KR1020100027224 A KR 1020100027224A KR 20100027224 A KR20100027224 A KR 20100027224A KR 20110107990 A KR20110107990 A KR 20110107990A
- Authority
- KR
- South Korea
- Prior art keywords
- pipe
- tightening
- tightening nut
- ring
- separation
- Prior art date
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/061—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends a pressure ring being arranged between the clamping ring and the threaded member or the connecting member
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/07—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends adapted for use in socket or sleeve connections
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- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/0845—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of retaining members associated with the packing member
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- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Pressure Members (AREA)
Abstract
The present invention relates to a pipe end connection, and more particularly, the tightening nut is separated into a primary tightening nut and a secondary tightening nut so that the primary tightening nut is kept confidential and the secondary tightening nut is prevented from being separated. By performing the function, when tightening the tightening nut for plumbing not only small-diameter pipe but also large-diameter pipe, even with a small tightening force, it can maintain high fastening force and stability, prevent breakage of parts, and make piping work quickly. In addition, separate separation preventing members are assembled to the plurality of fastening pieces of the fastening ring. The present invention relates to pipe connectors that can be applied to various pipes and can reduce costs.
Accordingly, the present invention, in the pipe connector for connecting the pipe 5, the fluid passage 11 is formed therein so as to accommodate the end of the pipe 5 at one end of the fluid passage 11 A connecting body 10 having a pipe accommodation part 12 formed therein; a packing means 20 installed at a packing installation part 13 formed at one side of the pipe accommodation part 12 of the connection body 10; It is installed on one end of the body 10, the pressing means 30 for pressing the packing means 20 and the separation preventing means 50 for preventing the separation of the pipe 5 and the connecting body 10 Of the primary tightening nut 60 and the primary tightening nut 60 which are screwed to the outer circumferential surface of one end to fix the pressing means 30 and the release preventing means 50 to the connection body 10 side. It is screwed to the outer peripheral surface of one end and includes a secondary tightening nut 70 for close contact with the separation preventing means 50 to the pipe (5) side Characterized in that made.
Description
The present invention relates to a pipe end connection, and more particularly, the tightening nut is separated into a primary tightening nut and a secondary tightening nut so that the primary tightening nut is kept confidential and the secondary tightening nut is prevented from being separated. By performing the function, when tightening the tightening nut for plumbing not only small-diameter pipe but also large-diameter pipe, even with a small tightening force, it can maintain high fastening force and stability, prevent breakage of parts, and make piping work quickly. In addition, separate separation preventing members are assembled to the plurality of fastening pieces of the fastening ring. Therefore, regardless of the material or shape of the pipe, the fastening ring can be used in common while only the release preventing member needs to use the shape and number suitable for the pipe type. The present invention relates to pipe connectors that can be applied to various pipes and can reduce costs.
Generally, various types of connectors are known as a medium for connecting a rubber hose, a metal or a resin pipe to a pipe or a metal pipe having a certain length. For example, a domestic patent registration number registered and filed by the present applicant 915412 (named Pipe Connection).
The pipe connector is fixed to the pipe inserted into the receiving hole of the connection socket through the tightening ring which is tightened when tightening the tightening nut to prevent the separation, when the high temperature water flows into the connection socket to soften the pipe By supporting the pipe support tube so that its shape is not deformed, the leak can be prevented in advance.
In other words, the pipe connector is used to connect the pipe and the pipe, and when the synthetic resin heating pipe embedded in the floor so that the hot water flows to heat each room of the house is softened to a high temperature There is a need for a pipe support to support the softened pipe.
The pipe connector is supplied to the worker with the packing member (O-ring), the tightening ring and the fastening nut assembled at one end of the connecting socket, and the pipe support pipe is separated even if the pipe supporting pipe is inserted into the receiving hole of the connecting socket. Since the pipe support pipe is supplied separately, it is managed by the worker.
Therefore, when assembling the pipe to the pipe connector, the operator first inserts the pipe support tube at the end of the pipe and pushes it into the receiving hole of the connecting socket, and then simply tightens the tightening nut to complete the assembly work. Can be.
However, since the conventional pipe connector has to perform both the connection / fixing of the pipe and the airtightness and the separation prevention function using a single fastening nut, there is no big problem in the pipe work of the small diameter pipe, At the time of the piping work, a large tightening force is entered to screw a single tightening nut, so that the piping work is difficult, and the work time takes a lot of time.
In addition, due to the difficulty in manufacturing the fastening ring integrally, only the function of the wedge piece to bite the pipe, which is the core function, could not be strengthened specially. Therefore, when connecting a small-diameter pipe, airtightness and prevention of separation of the pipe were performed. Although, as the diameter of the pipe increases, the separation prevention and fixing function is important, but there is a problem that the separation and fixing function of the large diameter pipe cannot be normally performed by the tightening ring structure of the conventional pipe connector.
In addition, according to the material or shape of the pipe to be produced according to each of the appropriate fastening ring, not only is it difficult to share the fastening ring, there is a problem that takes a lot of manufacturing costs.
On the other hand, as another conventional technique, there is a technique using a metal escape prevention ring consisting of a single body strengthening the wedge function to prevent the separation of the pipe, but also because the technology also uses a single tightening nut, the screw of such a single tightening nut When tightening the wedge of the metal escape prevention ring bites the pipe first, a large force (tightening force) is required in order to tighten the screw, and if the screw continues to tighten, there was a problem that the pipe or the separation prevention ring is broken.
An object of the present invention for solving the above problems is to separate the tightening nut into the primary tightening nut and the secondary tightening nut to perform the confidentiality to the primary tightening nut and to prevent the departure from the secondary tightening nut By performing the function, when tightening the tightening nut for plumbing not only small diameter pipes but also large diameter pipes, high tightening force and stability can be maintained even with a small tightening force, preventing breakage of parts, and quick piping work. In addition, separate separation preventing members are assembled to the plurality of fastening pieces of the fastening ring. Therefore, regardless of the material or shape of the pipe, the fastening ring can be used in common while only the release preventing member needs to use the shape and number suitable for the pipe type. The present invention provides a pipe connector that can be applied to various pipes and can reduce costs.
In order to achieve the above object, the present invention provides a pipe connector for connecting a pipe, wherein a fluid passage is formed therein and a pipe accommodating portion is formed to receive an end of the pipe at one end of the fluid passage. The body, the packing means is installed in the packing installation portion formed on one side of the pipe receiving portion of the connecting body, and is installed on one end of the connection body and the pressure means for pressing the packing means and prevent the separation of the pipe A first tightening nut which is screwed to an outer circumferential surface of one end of the connecting body to fix the pressurizing means and the release preventing means to the connecting body, and a screwed to an outer circumferential surface of one end of the first tightening nut; In addition, the separation preventing means is characterized in that it comprises a secondary tightening nut for close contact with the pipe side.
The present invention divides the tightening nut of the pipe connector into the primary tightening nut and the secondary tightening nut, thereby distributing the tightening force to the two nuts. That is, the tightening force of the primary tightening nut may be the pressurizing means and the release preventing means. Pressing the fixing function and the packing means to perform the airtightness function, and by the tightening force of the secondary tightening nut to perform the pipe pressure fixing through the tightening piece and the separation prevention function through the separation prevention member, as well as large diameter pipe When tightening the tightening nut for the piping of the pipe, a high tightening force and stability is maintained even with a small tightening force, preventing damage to the parts, it is possible to quickly and easily perform the piping work.
In addition, since the separate release preventing members are assembled to the plurality of tightening pieces of the tightening ring, the tightening ring can be shared regardless of the material or shape of the pipe, and only the release preventing member has a shape and number suitable for the pipe type. Because it is used, it can be applied to various pipes as well as small diameter pipes or large diameter pipes, and the cost can be reduced.
In addition, by installing a packing means configured to space the primary o-ring and the secondary o-ring at regular intervals from each other, even if one O-ring is installed at the scratch position of the pipe, the other O-ring is installed at the portion without scratches, thereby maintaining airtightness. .
In addition, since the pressurization portion divided into a plurality of pressurizing means pressurizes the outer circumferential surface of the pipe and presses the 1st and 2nd o-rings, it is possible to prevent the flow of the pipes and to secure the concentricity of the pipes. Can be maintained.
In addition, the first and
And, the fixing piece is formed to be inclined downward on both sides of the lower end of the separation preventing member, the separation of the separation preventing member inserted into the coupling groove of the tightening piece is prevented.
In addition, when the primary tightening nut is screwed, the pressurizing portion of the pressurizing means presses the lower side of the pipe inserted into the pipe connection port, and when the secondary tightening nut is screwed, the upper part of the pipe where the tightening piece is inserted into the pipe connecting port. By pressing the side, the concentricity of the pipe is ensured, as well as the play and flow of the pipe are minimized to maximize the airtightness of the pipe.
In addition, the bent portion bent at right angles to the left and right sides and the upper end of the release preventing member is formed, thereby preventing the flow of the release preventing member in the coupling groove of the tightening piece.
1 is an exploded perspective view showing a pipe connector according to the present invention.
Figure 2 is a perspective view showing the pressing means and the release preventing means in the pipe connector according to the invention,
Figure 3 is a perspective view of the separation preventing member in the pipe connector according to the invention,
4 is a cross-sectional view showing a state of temporarily assembling the first and second tightening nut in the pipe connector according to the present invention,
Figure 5 is a cross-sectional view showing a state that fully screwed the first and second tightening nut in the pipe connector according to the present invention.
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
1 is an exploded perspective view showing a pipe connector according to the present invention. Figure 2 is a perspective view showing the pressing means and the release preventing means in the pipe connector according to the invention, Figure 3 is a perspective view showing a release preventing member in the pipe connector according to the invention, Figure 4 is a pipe connector in accordance with the present invention 1 5 is a cross-sectional view showing a state in which a secondary tightening nut is temporarily assembled, and FIG. 5 is a cross-sectional view showing a state in which the first and second tightening nuts are completely screwed in a pipe connector according to the present invention.
As shown, the pipe connector 1 according to the present invention can be applied to all products for connecting pipes, such as elbows, tees for pipe joints, as well as various valves as a connector for connecting the pipe (5).
The pipe may be a hard or soft synthetic resin pipe and a metal pipe. In this case, when using a flexible synthetic resin pipe, it is preferable to insert and use a separate support pipe (not shown) supporting the flexible pipe at the end of the flexible pipe inserted into the connector.
The pipe connector 1 includes a connecting
First, the
Since the
In addition, the threaded
Of course, the shape of the connecting
On the other hand, on one side of the
In addition, the packing means 20 is seated on the
The packing means 20 is between the primary o-
That is, there may be a scratch on the surface of the pipe (5). At this time, if the primary o-
Therefore, when the pressing means 30 presses the packing means 20 by screwing the
In addition, the pressing means 30 is mounted on one end of the connecting
The pressing means 30, the auxiliary
Here, the auxiliary
In addition, the
Therefore, when screwing the
As such, since the
In addition, the
The
Coupled to the inside of the tightening
Between the tightening
In addition, the fastening
And, the tightening
At this time, the tightening
In addition, each of the plurality of divided
In addition, an opening
On the other hand, when the tightening
The
The wedge piece is a
When the first and
On the other hand, if a large high pressure is generated inside the
That is, the groove formed on the surface of the
In addition, the fixing
As described above, since the
For example, when a small diameter pipe is used or the pressure in the
As such, since the
On the other hand, the left and right sides and the upper end of the
The
In addition, a locking
In addition, a
Here, the
In addition, the
Accordingly, when the
In addition, according to the present invention, the tightening nut of the pipe connector 1 is separated into the
In addition, in the present invention, when the
On the other hand, the
Hereinafter, the operation of the pipe connector 1 according to the present invention will be described.
First, the
At this time, the
Thereafter, the
After temporarily assembling the
The worker supplied with the prefabricated pipe connector 1 inserts the
Thereafter, when the worker first completely tightens the
After completely screwing the
On the other hand, when the
1: pipe connector 5: pipe
10: connecting body 11: fluid passage
12: pipe receiving part 13: packing installation part
20: packing means 21: primary ring
22: secondary ring 23: sleeve
30: pressurization means 31: auxiliary ring seating portion
32: pressurization portion 33: auxiliary ring
40: tightening ring 41: tightening ring seat
42: tightening piece 43: flow support
45: coupling groove 46: opening groove
50: separation preventing means 51: separation preventing member
52: first wedge piece 53: second wedge piece
54: fixed piece 55: bend
60: primary tightening nut 70: secondary tightening nut
Claims (9)
A connection body 10 having a pipe accommodation portion 12 formed therein to allow the fluid passage 11 to penetrate therein and receive an end of the pipe 5 at one end of the fluid passage 11;
Packing means 20 is installed on the packing installation portion 13 formed on one side of the pipe receiving portion 12 of the connecting body 10,
A separation preventing means 50 installed on one end of the connecting body 10 and preventing separation of the pressurizing means 30 and the pipe 5 to press the packing means 20;
A primary tightening nut 60 screwed to an outer circumferential surface of one end of the connecting body 10 to fix the pressing means 30 and the release preventing means 50 to the connecting body 10 side;
A pipe connector characterized in that it comprises a secondary tightening nut 70 which is screwed to the outer peripheral surface of one end of the primary tightening nut 60 and closely attaching the separation preventing means 50 to the pipe 5 side. .
The pressing means 30, the auxiliary ring seating portion 31 which is seated on one end of the connecting body 10 and protruding to the lower end of the auxiliary ring seating portion 31 and the packing installation portion 13 The pressure ring 32 is inserted into the pressurizing portion 32 to press the packing means 20, and the auxiliary ring (33) protruding from the upper end of the auxiliary ring seating portion 31 is inserted into the separation preventing means (50) Pipe connector characterized in that consisting of.
The pressing portion 32 and the auxiliary ring seating portion 31 are formed in plural in the circumferential direction, and a first inclined surface 32a is formed on an outer circumferential surface of the pressing portion 32, and the first inclined surface 32a and On the inner circumferential surface of the packing installation portion (13) facing the pipe connector characterized in that the second inclined surface (13a) for adhering the pressing portion (32) in close contact with the pipe side.
The separation preventing means 50,
The pressing means 30 is installed on the inner side of the primary tightening nut 60 and is caught by a catching jaw 63 formed on the inner circumferential surface of the primary tightening nut 60 when the primary tightening nut 60 is screwed. Fastening ring seating portion 41 is formed on one side of the), the upper ring fastening ring 42 is formed with a tightening piece 42 for tightly supporting the outer peripheral surface of the pipe (5) when tightening the secondary tightening nut 70 40,
Coupled to the inside of the tightening ring (40) and the pipe connector, characterized in that made of a separation preventing member (51) elastically close to the outer peripheral surface of the pipe (5) to prevent the separation of the pipe (5).
The tightening piece 42 is formed in plurality in the circumferential direction,
Each of the plurality of tightening pieces 42 divided into an opening groove which opens one side of the coupling groove 45 and the coupling groove 45 facing the pipe 5 so that the separation preventing member 51 is inserted and coupled thereto ( 46) pipe connection characterized in that formed.
The separation preventing member 51 is formed to be inclined at a predetermined angle toward the pipe 5 and a pipe connector, characterized in that a wedge piece is formed to be elastically in close contact with the outer circumferential surface of the pipe 5 through the opening groove 46. .
The wedge piece is a first wedge piece 52 is formed to be inclined downward in the lower end portion of the separation preventing member 51 and the second wedge piece formed to be inclined downwardly spaced apart from the first wedge piece 52 by a predetermined interval upward. Consisting of 53,
A fixing piece elastically in close contact with the coupling groove 45 to prevent the separation of the separation prevention member 51 inserted into the coupling groove 45 of the tightening piece 42 to the lower end of the separation prevention member 51. Pipe connector characterized in that the 54 is formed to be inclined downward.
On the inner surface of the secondary tightening nut 70, a wedge portion for tightly attaching the tightening piece 42 of the tightening ring 40 to the outer circumferential surface side of the pipe 5 when the secondary tightening nut 70 is screwed. 71 is formed,
Pipe fittings, characterized in that the inclined surface (71a, 44) is formed on the opposite surface of the wedge portion (71) and the tightening piece (42), respectively.
The packing means 20 is formed of the primary o-ring 21 and the secondary o-ring 22 and the first and second o-rings 21 and 22 which are installed in the packing installation unit 13 at regular intervals from each other. Pipe connector, characterized in that consisting of a sleeve (23) installed between the first and second ring (21, 22) to maintain the spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100027224A KR20110107990A (en) | 2010-03-26 | 2010-03-26 | A pipe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020100027224A KR20110107990A (en) | 2010-03-26 | 2010-03-26 | A pipe connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20110107990A true KR20110107990A (en) | 2011-10-05 |
Family
ID=45025893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020100027224A KR20110107990A (en) | 2010-03-26 | 2010-03-26 | A pipe connector |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20110107990A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101478141B1 (en) * | 2012-08-02 | 2014-12-31 | 박강훈 | Direction adjusting device for valve |
| AU2017101400B4 (en) * | 2017-10-20 | 2018-02-08 | Husqvarna Ab | Connector assembly for a tube-shaped component |
| CN109778960A (en) * | 2019-03-15 | 2019-05-21 | 苏州快捷通建筑科技有限公司 | The connector and connector in unlimited adjustment faucet outlet direction |
| JP2020507044A (en) * | 2017-11-30 | 2020-03-05 | クォン キム，ボン | Coupling device |
| KR20210081306A (en) | 2019-12-23 | 2021-07-01 | 강미현 | Pipe connecting device |
| CN114838175A (en) * | 2022-06-02 | 2022-08-02 | 江苏博特威流体科技有限公司 | Valve convenient for connecting water pipeline |
-
2010
- 2010-03-26 KR KR1020100027224A patent/KR20110107990A/en active IP Right Grant
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101478141B1 (en) * | 2012-08-02 | 2014-12-31 | 박강훈 | Direction adjusting device for valve |
| AU2017101400B4 (en) * | 2017-10-20 | 2018-02-08 | Husqvarna Ab | Connector assembly for a tube-shaped component |
| JP2020507044A (en) * | 2017-11-30 | 2020-03-05 | クォン キム，ボン | Coupling device |
| CN109778960A (en) * | 2019-03-15 | 2019-05-21 | 苏州快捷通建筑科技有限公司 | The connector and connector in unlimited adjustment faucet outlet direction |
| CN109778960B (en) * | 2019-03-15 | 2024-04-09 | 苏州快捷通建筑科技有限公司 | Connecting piece and connector capable of infinitely adjusting water outlet direction of faucet |
| KR20210081306A (en) | 2019-12-23 | 2021-07-01 | 강미현 | Pipe connecting device |
| KR20210080777A (en) | 2019-12-23 | 2021-07-01 | 강미현 | Pipe connecting device |
| CN114838175A (en) * | 2022-06-02 | 2022-08-02 | 江苏博特威流体科技有限公司 | Valve convenient for connecting water pipeline |
| CN114838175B (en) * | 2022-06-02 | 2023-11-28 | 江苏博特威流体科技有限公司 | Valve convenient for connecting water delivery pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| NORF | Unpaid initial registration fee |