CN108662325B - Method for connecting pipe fittings by adopting lockset - Google Patents
Method for connecting pipe fittings by adopting lockset Download PDFInfo
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- CN108662325B CN108662325B CN201810516459.5A CN201810516459A CN108662325B CN 108662325 B CN108662325 B CN 108662325B CN 201810516459 A CN201810516459 A CN 201810516459A CN 108662325 B CN108662325 B CN 108662325B
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- connecting pipe
- lock
- water outlet
- screw
- hole
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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
- F16L29/00—Joints with fluid cut-off means
- F16L29/02—Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Domestic Plumbing Installations (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a method for connecting pipelines by adopting a lock, which comprises a first connecting pipe and a second connecting pipe, wherein a clamping groove is formed at the pipe end of the first connecting pipe, a circle of convex keys are formed at the pipe end of the second connecting pipe along the circumferential direction, the convex keys can be penetrated in the clamping groove, a mounting groove is arranged on the pipe end surface of the first connecting pipe, a lock disc is arranged in the mounting groove, a lock hole is arranged on the lock disc, a through hole is arranged at the pipe orifice of the first connecting pipe, the lock hole and the through hole are oppositely arranged, a threaded lock rod is penetrated in the lock hole, a rotating screw is fixed on the pipe end surface of the second connecting pipe, a baffle is arranged at the pipe orifice of the first connecting pipe, a water outlet is formed on the baffle, a screw rod is arranged on the water outlet, a conical sealing element is arranged in the first connecting pipe, the lead screw is connected with the conical sealing element.
Description
Technical Field
The invention mainly relates to the technical field of pipeline connection, in particular to a method for connecting pipe fittings by adopting a lockset.
Background
In the prior art, two pipe fittings are generally connected through a pipe joint, and because two surfaces of the pipe joint are connected with the pipe fittings, the two surfaces of the pipe joint are sealed, the process is complex, in addition, the pipe joint in the prior art cannot be used for pipe connection in the water passing process, the water pressure is high under the water passing condition, the pipe joint is difficult to screw into the pipe fittings, and even if the pipe joint is forcibly connected, a large amount of water resources are wasted in the process.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for connecting pipe fittings by adopting a lockset.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for connecting pipe fittings by a lock comprises a first connecting pipe and a second connecting pipe, wherein the outer diameter of the first connecting pipe is larger than that of the second connecting pipe, a clamping groove is formed at the pipe end of the first connecting pipe, a circle of convex keys are formed at the pipe end of the second connecting pipe along the circumferential direction and can penetrate through the clamping groove, a mounting groove is formed in the end face of the pipe end of the first connecting pipe, a lock disc is arranged in the mounting groove, a lock hole is formed in the lock disc, through holes are formed in two sides of the pipe orifice of the first connecting pipe, the lock hole and the through holes are arranged oppositely, when the lock disc is placed in the mounting groove, the lock hole is communicated with the through holes, internal threads are formed on the inner walls of the lock hole and the through holes, a threaded lock rod is arranged in the lock hole in a penetrating manner, and the head of the threaded lock rod is positioned in the through holes, the afterbody of screw thread locking lever is located in the lockhole be fixed with the rotation screw on the pipe end terminal surface of second connecting pipe, the rotation screw can wear to establish in the lockhole and with the afterbody butt of screw thread locking lever, when rotating during the second connecting pipe, can drive the rotation screw rotates, and then drives the screw thread locking lever is inside to be rotated the mouth of pipe of first connecting pipe has set up the baffle be formed with the delivery port on the baffle the lead screw has been set up on the delivery port the inside of first connecting pipe has set up the toper sealing member, the lead screw with the toper sealing member links to each other, and its specific connected step is as follows:
1) assembling a screw rod on the conical sealing element, so that the screw rod is connected to the center of the conical sealing element;
2) the first connecting pipe is provided with two pipe ends, wherein one end is a water inlet end and is connected with a water source, the other end is a water outlet end, the baffle is arranged in the water outlet end, and the conical sealing piece assembled with the screw rod is placed into the first connecting pipe from the water inlet end of the first connecting pipe;
3) pulling the screw rod by using a tool from the water outlet end of the first connecting pipe, and then pulling the screw rod by force to drag the conical sealing element from the water inlet end of the first connecting pipe to the water outlet end;
4) assembling the baffle plate to the water outlet end, pulling the screw rod until the sealing surface of the conical sealing element is tightly attached to the water outlet of the baffle plate, and sealing the water outlet by the conical sealing element at the moment;
5) placing the spring into the through hole at the bottom of the mounting groove;
6) the threaded lock rod is placed into the lock hole, the head of the threaded lock rod can penetrate through the lock hole to extend outwards, then the lock disc is sleeved on the screw rod, then the lock disc is placed into the mounting groove, the groove wall of the mounting groove is attached to the outer portion of the lock disc, the lock holes in the lock disc are aligned with the through holes in the bottom of the mounting groove one by rotating the lock disc, and the head of the threaded lock rod extends into the through holes to be in contact with the springs;
7) placing the second connecting pipe into the clamping groove from the side surface of the clamping groove, and enabling a rotating screw on the second connecting pipe to extend into the lock hole and to be in contact with the tail part of the threaded lock rod;
8) the second connecting pipe is rotated, so that the rotating screw drives the threaded locking rod to rotate, and the threaded locking rod is driven to feed from the lock hole to the bottom of the through hole, when the threaded locking rod feeds, the whole lock disc can be driven to feed to the bottom of the mounting groove, the screw rod is driven to feed towards the first connecting pipe, the conical sealing element is pushed to contract towards the inside of the first connecting pipe, and a water outlet gap is formed, so that water can flow into the second connecting pipe from the water outlet gap;
9) and screwing down the positioning screw positioned on the side part of the mounting groove to lock the position of the lock disc.
As a modification of the invention, in step 5), a columnar spring support is formed in advance at the bottom of the through hole, and when the spring is installed, the spring is placed into the through hole in alignment with the spring support, so that the spring is sleeved on the spring support, and the spring is a hard spring.
Preferably, in step 6), an internal thread is previously engraved on the inner wall of the lock hole, an external thread is engraved on the threaded lock rod, the threaded lock rod is placed in the lock hole, the non-engraved portion of the head of the threaded lock rod can extend towards the through hole through the portion engraved with the internal thread on the lock hole until the internal thread contacts the external thread, and at this time, the linear feeding of the threaded lock rod in a non-rotating state is prevented by the meshing relationship between the internal thread and the external thread.
As a specific technical solution of the present invention, in step 8), the screw rod is composed of a sealing end and a rotating end, the diameter of the rotating end is smaller than that of the sealing end, the diameter of the sealing end is equal to the inner diameter of the water outlet, when the screw rod is fed to the first connecting pipe, the conical sealing member has released the sealing of the water outlet at the initial distance, but the sealing end seals the water outlet, because the diameter of the sealing end is equal to the inner diameter of the water outlet, and then, when the rotating end of the screw rod is fed to the position of the water outlet, a water outlet gap is formed between the rotating end and the water outlet, because the diameter of the rotating end is smaller than the inner diameter of the water outlet.
As an improvement of the invention, a positioning hole is arranged on the groove wall of the mounting groove, the positioning hole is arranged along the radial direction of the mounting groove, a positioning screw penetrates through the positioning hole, and when the lock disc is fed to the right position in the direction of the first connecting pipe, the end part of the positioning screw can be abutted against the side wall of the lock disc by screwing the positioning screw, so that the lock disc is prevented from loosening.
Compared with the prior art, the invention has the advantages that: the pipe joint is omitted, the two pipe fittings can be directly connected, and even in the water flowing process, the first connecting pipe is sealed by the baffle plate matched with the conical sealing element, and the water outlet gap can be formed only by rotating the second connecting pipe to drive the screw rod to feed to a certain degree, so that the pipe replacement operation can be performed under the condition of water flowing.
Drawings
Fig. 1 is a schematic view of a structure for connecting pipes by using a lock according to an embodiment of the present invention.
Detailed Description
The embodiment of the structure for connecting pipelines by using locks in the invention is further explained by referring to the attached drawings.
As shown in the attached drawings, the embodiment is a structure for connecting pipelines by using a lock, and comprises a first connecting pipe 1 and a second connecting pipe 2, wherein the outer diameter of the first connecting pipe is larger than the outer diameter of the second connecting pipe, and the inner diameters of the first connecting pipe and the second connecting pipe can be equal or unequal, a clamping groove 3 is formed at the pipe end of the first connecting pipe, the groove diameter of the clamping groove is larger than the outer diameter of the second connecting pipe, a circle of convex keys 4 are formed at the pipe end of the second connecting pipe along the circumferential direction, the convex keys can be arranged in the clamping groove in a penetrating mode, when the pipe end of the second connecting pipe is placed into the clamping groove, the convex keys can be limited by an inverted hook-shaped notch of the clamping groove, and therefore the second connecting pipe is prevented.
The pipe end of the first connecting pipe forms a square mounting groove 5 at the rear part of the clamping groove, the groove diameter of the mounting groove is smaller than the groove diameter of the clamping groove and the outer diameter of the second connecting pipe, a lock disc 6 is arranged in the mounting groove, the diameter of the lock disc is approximately equal to the groove diameter of the mounting groove but slightly smaller than the groove diameter of the mounting groove, and therefore the lock disc can be axially fed or retracted relative to the direction of the first connecting pipe in the mounting groove under the driving of external force. The lockhole 61 has been seted up on the lock dish, through-hole 11 has been seted up at the tank bottom position of mounting groove, the quantity of through-hole and lockhole is unanimous, and each through-hole all faces a lockhole, aperture between them is also unanimous, thus, when the lock dish is placed in the mounting groove and hugs closely the tank bottom of mounting groove, lockhole and through-hole can be linked together, all set up the internal thread on the inner wall of lockhole and through-hole, wear to be equipped with screw thread locking lever 7 in the lockhole, the head threaded connection of this screw thread locking lever is in the through-hole, screw thread locking lever's afterbody is then threaded connection in the lockhole, when external force drives screw thread locking lever and rotates, can drive screw thread locking. The bottom of the through hole is provided with the spring 8, one end of the spring is fixed at the bottom of the through hole, the other end of the spring extends along the axial direction of the through hole and is connected with the head of the threaded locking rod, the spring can provide outward return acting force for the threaded locking rod after being pressed, on one hand, the spring can play a role in buffering and guiding the head of the locking rod in the process of screwing the threaded locking rod (the spring also has elastic force in the radial direction and can prevent the head of the locking rod from radially deviating), on the other hand, the locking rod can be pushed outwards in the process of withdrawing the threaded locking rod, and the withdrawing speed is accelerated.
Screw locking lever pivoted external force derives from the second connecting pipe, and is concrete, is being fixed on the pipe end terminal surface of second connecting pipe and is rotating screw 9, the head of rotating the screw can extend in the lockhole and with the afterbody butt of screw locking lever, the hole groove of special shape is seted up at the afterbody of screw locking lever, for example criss-cross, plum blossom shape or a style of calligraphy etc. head at the rotation screw then is setting up the arch unanimous with the hole groove shape, and like this, the head of rotating the screw can the joint at the afterbody of screw locking lever, when rotating the second connecting pipe through instrument or manual mode, just can rotate the rotation screw, thereby transmit the revolving force for the screw locking lever, make the screw locking lever also take place to rotate. The pipe orifice of the first connecting pipe is provided with a baffle plate 10, a water outlet 101 is formed on the baffle plate, a screw rod 12 is arranged on the water outlet, the screw rod comprises a sealing end 121 and a rotating end 122, the diameter of the rotating end is smaller than that of the sealing end, the diameter of the sealing end is equal to the inner diameter of the water outlet, so that a primary sealing effect is achieved, a conical sealing part 13 is arranged inside the first connecting pipe, the conical sealing part is provided with an arc-shaped sealing surface, the sealing surface can be tightly attached to the inner wall of the water outlet so as to seal the water outlet, the sealing end of the screw rod is connected to the position of the center point of the arc-shaped sealing surface, when the screw rod is pushed inwards, the sealing surface can be pushed inwards to separate the sealing surface from the inner wall of the water outlet, so that water inside the first connecting pipe can flow out from a gap formed by the sealing, when the lock disc is fed towards the first connecting pipe, the screw rod can be driven to feed towards the first connecting pipe, the feeding force of the lock disc is derived from the threaded lock rod, when the threaded lock rod rotates towards the through hole, the threaded lock rod can provide the feeding force for the lock disc at the same time, and the lock disc is driven to feed towards the first connecting pipe until one side of the lock disc is tightly attached to the groove bottom of the mounting groove, so that a layer of hard seal is formed. The special lock groove can be formed in the front end of the lock hole and is matched with the outline of the side wall of the rotating screw, and therefore only the rotating screw with the specified outline can stretch into the lock hole, and misconnection can be prevented.
The lock disc is characterized in that a positioning hole is formed in the wall of the mounting groove and is arranged along the radial direction of the mounting groove, a positioning screw 14 penetrates through the positioning hole, and when the lock disc is fed in place, the end portion of the positioning screw can be abutted against the side wall of the lock disc by screwing the positioning screw, so that the lock disc is prevented from being loosened. In addition, a gap is formed between the clamping groove and the convex key, a sealing ring is clamped in the gap and made of rubber, the sealing ring has good elasticity, the size of the sealing ring in an unstressed state is larger than that of the gap, the sealing ring is sleeved on the convex key in advance, and then when the convex key is clamped into the clamping groove, the sealing ring is stressed and extruded until the sealing ring is attached to the groove wall of the clamping groove.
The specific connection steps are as follows:
1) assembling a screw rod on the conical sealing element, so that the screw rod is connected to the center of the conical sealing element;
2) the first connecting pipe is provided with two pipe ends, wherein one end is a water inlet end and is connected with a water source, the other end is a water outlet end, the baffle is arranged in the water outlet end, and the conical sealing piece assembled with the screw rod is placed into the first connecting pipe from the water inlet end of the first connecting pipe;
3) pulling the screw rod by using a tool from the water outlet end of the first connecting pipe, and then pulling the screw rod by force to drag the conical sealing element from the water inlet end of the first connecting pipe to the water outlet end;
4) assembling the baffle plate to the water outlet end, pulling the screw rod until the sealing surface of the conical sealing element is tightly attached to the water outlet of the baffle plate, and sealing the water outlet by the conical sealing element at the moment;
5) placing the spring into the through hole at the bottom of the mounting groove;
6) the threaded lock rod is placed into the lock hole, the head of the threaded lock rod can penetrate through the lock hole to extend outwards, then the lock disc is sleeved on the screw rod, then the lock disc is placed into the mounting groove, the groove wall of the mounting groove is attached to the outer portion of the lock disc, the lock holes in the lock disc are aligned with the through holes in the bottom of the mounting groove one by rotating the lock disc, and the head of the threaded lock rod extends into the through holes to be in contact with the springs;
7) placing the second connecting pipe into the clamping groove from the side surface of the clamping groove, and enabling a rotating screw on the second connecting pipe to extend into the lock hole and to be in contact with the tail part of the threaded lock rod;
8) the second connecting pipe is rotated, so that the rotating screw drives the threaded locking rod to rotate, and the threaded locking rod is driven to feed from the lock hole to the bottom of the through hole, when the threaded locking rod feeds, the whole lock disc can be driven to feed to the bottom of the mounting groove, the screw rod is driven to feed towards the first connecting pipe, the conical sealing element is pushed to contract towards the inside of the first connecting pipe, and a water outlet gap is formed, so that water can flow into the second connecting pipe from the water outlet gap;
9) and screwing down the positioning screw positioned on the side part of the mounting groove to lock the position of the lock disc.
In step 5) of the method, a cylindrical spring support is formed at the bottom of the through hole in advance, and when the spring is installed, the spring is placed into the through hole by aligning the spring support, so that the spring is sleeved on the spring support, and the spring is a hard spring.
In the step 6), an internal thread is carved on the inner wall of the lock hole in advance, an external thread is carved on the threaded lock rod, the threaded lock rod is placed in the lock hole, the part of the head of the threaded lock rod, which is not carved with the internal thread, can extend towards the direction of the through hole through the part of the lock hole, which is carved with the internal thread, until the internal thread is contacted with the external thread, and at the moment, the linear feeding of the threaded lock rod in a non-rotating state is prevented by the meshing relationship between the internal thread and the external thread.
In step 8), the screw rod is composed of a sealing end and a rotating end, the diameter of the rotating end is smaller than that of the sealing end, the diameter of the sealing end is equal to the inner diameter of the water outlet, when the screw rod is fed to the first connecting pipe, the conical sealing element releases the sealing of the water outlet at the initial distance, but the sealing end seals the water outlet because the diameter of the sealing end is equal to the inner diameter of the water outlet, and then when the rotating end of the screw rod is fed to the position of the water outlet, a water outlet gap is formed between the rotating end and the water outlet because the diameter of the rotating end is smaller than that of the water outlet.
The above description of the preferred embodiments of the present invention is provided to enable those skilled in the art to make various changes and modifications without departing from the spirit of the present invention, and these changes and modifications should be construed as being included in the scope of the present invention.
Claims (5)
1. A method for connecting pipe fittings by a lock comprises a first connecting pipe and a second connecting pipe, wherein the outer diameter of the first connecting pipe is larger than that of the second connecting pipe, a clamping groove is formed at the pipe end of the first connecting pipe, a circle of convex keys are formed at the pipe end of the second connecting pipe along the circumferential direction and can penetrate through the clamping groove, a mounting groove is formed in the end face of the pipe end of the first connecting pipe, a lock disc is arranged in the mounting groove, a lock hole is formed in the lock disc, through holes are formed in two sides of the pipe orifice of the first connecting pipe, the lock hole and the through holes are arranged oppositely, when the lock disc is placed in the mounting groove, the lock hole is communicated with the through holes, internal threads are formed on the inner walls of the lock hole and the through holes, a threaded lock rod is arranged in the lock hole in a penetrating manner, and the head of the threaded lock rod is positioned in the through holes, the afterbody of screw thread locking lever is located in the lockhole be fixed with the rotation screw on the pipe end terminal surface of second connecting pipe, the rotation screw can wear to establish in the lockhole and with the afterbody butt of screw thread locking lever, when rotating during the second connecting pipe, can drive the rotation screw rotates, and then drives the screw thread locking lever is inside to be rotated the mouth of pipe of first connecting pipe has set up the baffle be formed with the delivery port on the baffle the lead screw has been set up on the delivery port the inside of first connecting pipe has set up the toper sealing member, the lead screw with the toper sealing member links to each other, and its specific connected step is as follows:
1) assembling a screw rod on the conical sealing element, so that the screw rod is connected to the center of the conical sealing element;
2) the first connecting pipe is provided with two pipe ends, wherein one end is a water inlet end and is connected with a water source, the other end is a water outlet end, the baffle is arranged in the water outlet end, and the conical sealing piece assembled with the screw rod is placed into the first connecting pipe from the water inlet end of the first connecting pipe;
3) pulling the screw rod by using a tool from the water outlet end of the first connecting pipe, and then pulling the screw rod by force to drag the conical sealing element from the water inlet end of the first connecting pipe to the water outlet end;
4) assembling the baffle plate to the water outlet end, pulling the screw rod until the sealing surface of the conical sealing element is tightly attached to the water outlet of the baffle plate, and sealing the water outlet by the conical sealing element at the moment;
5) placing the spring into the through hole at the bottom of the mounting groove;
6) the threaded lock rod is placed into the lock hole, the head of the threaded lock rod can penetrate through the lock hole to extend outwards, then the lock disc is sleeved on the screw rod, then the lock disc is placed into the mounting groove, the groove wall of the mounting groove is attached to the outer portion of the lock disc, the lock holes in the lock disc are aligned with the through holes in the bottom of the mounting groove one by rotating the lock disc, and the head of the threaded lock rod extends into the through holes to be in contact with the springs;
7) placing the second connecting pipe into the clamping groove from the side surface of the clamping groove, and enabling a rotating screw on the second connecting pipe to extend into the lock hole and to be in contact with the tail part of the threaded lock rod;
8) the second connecting pipe is rotated, so that the rotating screw drives the threaded locking rod to rotate, and the threaded locking rod is driven to feed from the lock hole to the bottom of the through hole, when the threaded locking rod feeds, the whole lock disc can be driven to feed to the bottom of the mounting groove, the screw rod is driven to feed towards the first connecting pipe, the conical sealing element is pushed to contract towards the inside of the first connecting pipe, and a water outlet gap is formed, so that water can flow into the second connecting pipe from the water outlet gap;
9) and screwing down the positioning screw positioned on the side part of the mounting groove to lock the position of the lock disc.
2. The method of connecting tubulars with a lockset of claim 1, wherein: in step 5), a columnar spring support is formed at the bottom of the through hole in advance, and when the spring is installed, the spring is placed into the through hole by aligning the spring support, so that the spring is sleeved on the spring support, and the spring is a hard spring.
3. The method of connecting tubulars with a lockset of claim 1, wherein: in the step 6), an internal thread is carved on the inner wall of the lock hole in advance, an external thread is carved on the threaded lock rod, the threaded lock rod is placed in the lock hole, the part of the head of the threaded lock rod, which is not carved with the internal thread, can extend towards the direction of the through hole through the part of the lock hole, which is carved with the internal thread, until the internal thread is contacted with the external thread, and at the moment, the linear feeding of the threaded lock rod in a non-rotating state is prevented by the meshing relationship between the internal thread and the external thread.
4. The method of connecting tubulars with a lockset of claim 1, wherein: in step 8), the screw rod is composed of a sealing end and a rotating end, the diameter of the rotating end is smaller than that of the sealing end, the diameter of the sealing end is equal to the inner diameter of the water outlet, when the screw rod is fed to the first connecting pipe, the conical sealing element releases the sealing of the water outlet at the initial distance, but the sealing end seals the water outlet because the diameter of the sealing end is equal to the inner diameter of the water outlet, and then when the rotating end of the screw rod is fed to the position of the water outlet, a water outlet gap is formed between the rotating end and the water outlet because the diameter of the rotating end is smaller than that of the water outlet.
5. The method of connecting tubulars with a lockset of claim 1, wherein: the lock disc is characterized in that a positioning hole is formed in the wall of the mounting groove and is arranged along the radial direction of the mounting groove, a positioning screw penetrates through the positioning hole, and when the lock disc is fed in place in the direction of the first connecting pipe, the end portion of the positioning screw can be abutted against the side wall of the lock disc by screwing the positioning screw, so that the lock disc is prevented from being loosened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516459.5A CN108662325B (en) | 2018-05-25 | 2018-05-25 | Method for connecting pipe fittings by adopting lockset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516459.5A CN108662325B (en) | 2018-05-25 | 2018-05-25 | Method for connecting pipe fittings by adopting lockset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662325A CN108662325A (en) | 2018-10-16 |
| CN108662325B true CN108662325B (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810516459.5A Active CN108662325B (en) | 2018-05-25 | 2018-05-25 | Method for connecting pipe fittings by adopting lockset |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110432Y (en) * | 2007-11-19 | 2008-09-03 | 陈林法 | Encapsulated pipe fitting joint |
| CN204693715U (en) * | 2015-04-20 | 2015-10-07 | 林文杰 | With the humidifier of crossover sub |
| KR20160007422A (en) * | 2014-07-11 | 2016-01-20 | 니토 코키 가부시키가이샤 | Valve device and pipe coupling having the valve device |
| CN205896501U (en) * | 2016-07-28 | 2017-01-18 | 西安聚新航空科技有限公司 | Pipeline quick connect connector |
| CN106439132A (en) * | 2015-05-18 | 2017-02-22 | 南安市丽迪家居用品有限公司 | Water pipe connector |
| CN206206859U (en) * | 2016-10-16 | 2017-05-31 | 兰州城市学院 | A kind of quick-change type check valve-type water pipe head |
-
2018
- 2018-05-25 CN CN201810516459.5A patent/CN108662325B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110432Y (en) * | 2007-11-19 | 2008-09-03 | 陈林法 | Encapsulated pipe fitting joint |
| KR20160007422A (en) * | 2014-07-11 | 2016-01-20 | 니토 코키 가부시키가이샤 | Valve device and pipe coupling having the valve device |
| CN204693715U (en) * | 2015-04-20 | 2015-10-07 | 林文杰 | With the humidifier of crossover sub |
| CN106439132A (en) * | 2015-05-18 | 2017-02-22 | 南安市丽迪家居用品有限公司 | Water pipe connector |
| CN205896501U (en) * | 2016-07-28 | 2017-01-18 | 西安聚新航空科技有限公司 | Pipeline quick connect connector |
| CN206206859U (en) * | 2016-10-16 | 2017-05-31 | 兰州城市学院 | A kind of quick-change type check valve-type water pipe head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108662325A (en) | 2018-10-16 |
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