CN110836300A - Novel two-way joint formula coupling - Google Patents
Novel two-way joint formula coupling Download PDFInfo
- Publication number
- CN110836300A CN110836300A CN201911133908.9A CN201911133908A CN110836300A CN 110836300 A CN110836300 A CN 110836300A CN 201911133908 A CN201911133908 A CN 201911133908A CN 110836300 A CN110836300 A CN 110836300A
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- clamping
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- novel
- connecting cylinder
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- 230000008878 coupling Effects 0.000 title claims abstract description 13
- 238000010168 coupling process Methods 0.000 title claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 6
- 241001330002 Bambuseae Species 0.000 claims abstract description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 6
- 239000011425 bamboo Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 20
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 11
- 239000011435 rock Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
- F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
- F16L37/252—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating in the corresponding slots provided in the female part
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a novel bidirectional clamping type pipe joint which comprises a fixed cylinder, a connecting cylinder and a forward clamping unit, wherein the fixed cylinder is fixedly connected with the connecting cylinder; forward joint unit: the utility model discloses a hydraulic pipe joint, including positive direction joint formula coupling, positive direction joint unit, fixed ring, draw-in groove, fixture block, shifting ring, spring and support ring, fixed ring establishes the side at fixed section of thick bamboo right-hand member, and fixed ring's external diameter equals the internal diameter of connecting cylinder, fixed ring's side equidistance is provided with four intercommunication grooves, the draw-in groove is equipped with four, and four draw-in groove equidistance set up the left surface at fixed ring, the fixture block is equipped with four, and four fixture block equidistance set up the medial surface at the connecting cylinder left end, and four fixture blocks correspond with four draw-in grooves, the side of support ring and the side fixed connection of connecting cylinder right-hand member, this novel two-way joint formula coupling can be with the joint separately the back with install the one end at two.
Description
Technical Field
The invention relates to the technical field of pipe joints, in particular to a novel bidirectional clamping type pipe joint.
Background
The pipe joint is a part for connecting pipelines in a hydraulic system or installing the pipelines on hydraulic elements, which is a general name of a connecting piece capable of being assembled and disassembled in a fluid passage, the pipe joint is a connecting tool between pipelines, is a connecting point capable of being assembled and disassembled between the elements and the pipelines, plays an indispensable important role in a pipe fitting, is one of two main components of the hydraulic pipeline, is used for linear connection of instruments and the like, is in socket welding or threaded connection, is mainly used for low-pressure pipelines with small calibers, is used for parts needing to be assembled and disassembled frequently or used for final adjustment of the pipeline using the threaded pipe fitting, most of the existing pipe joints are integrated, two ends of the existing pipe joints are connected with the hydraulic pipe through threads, but the integrated thread structure is difficult to rotate after one end is installed, and is very troublesome and consumes labor when being installed, it is inconvenient to rapidly install the coupling.
Disclosure of Invention
The invention aims to overcome the existing defects and provides a novel bidirectional clamping type pipe joint, which can be mounted at one end of two hydraulic pipes after being separated, can finish quick mounting after being clamped, has high mounting speed and low labor consumption and can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a novel bidirectional clamping type pipe joint comprises a fixed cylinder, a connecting cylinder and a forward clamping unit;
forward joint unit: the positive clamping unit comprises a communicating groove, a fixing ring, four communicating grooves, four clamping blocks, a moving ring, four springs and a supporting ring, the fixing ring is arranged on the side face of the right end of the fixing barrel, the outer diameter of the fixing ring is equal to the inner diameter of the connecting barrel, the side face of the fixing ring is provided with four communicating grooves at equal intervals, the four clamping grooves are arranged on the left side face of the fixing ring at equal intervals, the four clamping blocks are arranged on the inner side face of the left end of the connecting barrel at equal intervals, the four clamping blocks correspond to the four clamping grooves, the side face of the supporting ring is fixedly connected with the side face of the right end of the connecting barrel, the four springs are arranged, the right ends of the four springs are fixedly connected with the left side face of the supporting ring, the left ends of the four springs are fixedly connected with the right side face of the moving ring, the side face, through the further fixed cylinder and the connecting cylinder that will connect of reverse joint unit fixed, prevent that inside oil pressure is too big and lead to the coupling to burst, through the antiskid ribbed tile on the protective cover can increase frictional force when fixed cylinder and connecting cylinder are connected, make things convenient for the installer to rotate fixed cylinder and carry out the joint.
Further, still include reverse joint unit, reverse joint unit includes joint board, shifting chute and reverse draw-in groove, the joint board is the U type, and the joint board is equipped with two, the left end of two joint boards and the medial surface fixed connection of solid fixed cylinder right-hand member, the shifting chute is equipped with two, and the medial surface at the support ring is all established to two shifting chutes, reverse draw-in groove is equipped with four, and four reverse draw-in grooves all establish the right flank at the support ring, and four reverse draw-in grooves correspond with two joint boards, and is fixed through the further solid fixed cylinder and the connecting cylinder that will connect of reverse joint unit, prevents that inside oil pressure is too big and lead to the coupling to burst.
Further, still include protective cover and antiskid ribbed tile, the middle part at the solid fixed cylinder side is established to the protective cover, the antiskid ribbed tile array is in the side of protective cover, and the side array of protective cover has and is no less than ten antiskid ribbed tiles, and antiskid ribbed tile through the protective cover can increase frictional force when solid fixed cylinder and connecting cylinder are connected, makes things convenient for the installer to rotate solid fixed cylinder and carries out the joint.
Further, still include screw thread and connecting pipe, the connecting pipe is equipped with two, and two connecting pipes are established respectively at the left end of a solid fixed cylinder and the right-hand member of connecting cylinder, and the side of two connecting pipes all is equipped with the screw thread, and the junction at two oil pipe can be installed with solid fixed cylinder and connecting cylinder that can be convenient through the screw thread on the connecting pipe.
Further, still include stopper and spacing groove, the stopper is equipped with two, and two stoppers all establish the medial surface at the protective cover right-hand member, the spacing groove is the L type, and the spacing groove is equipped with two, and two spacing grooves are established in the side of connecting cylinder left end, and two spacing grooves correspond with two stoppers, and the cooperation through stopper and spacing groove can make that the fixture block is accurate pass the intercommunication groove and carry out the joint, makes things convenient for the joint between solid fixed cylinder and the connecting cylinder.
Further, the connecting device further comprises two pushing rings and two fixing blocks, the two fixing blocks are arranged on the side face of the middle portion of the connecting cylinder, the side face of each pushing ring is fixedly connected with the side face of the corresponding fixing block, and an operator can hold the connecting device conveniently during installation through the pushing rings.
Further, still include the baffle, the baffle is the L type, and the baffle is equipped with two, the lateral wall in two baffle right-hand member side holes and the side sliding connection who pushes away the ring, the right-hand member of two baffles respectively with the right-hand member sliding connection of two spacing grooves, can accomplish the back through this baffle and carry on spacingly to the stopper after the installation, prevent to take place to rock between a fixed cylinder and a connecting cylinder when using.
Further, still include first sealing washer and second sealing washer, the right flank at fixed section of thick bamboo is established to first sealing washer, the second sealing washer is established at the left flank of shifting ring, through the cooperation of first sealing washer and second sealing washer, can seal the junction, prevents the oil leak.
Compared with the prior art, the invention has the beneficial effects that: this novel two-way joint formula coupling has following benefit:
1. can be with the quick connection of a fixed cylinder and a connecting cylinder through forward joint unit, make the junction at two oil pipes of the convenient installation of a fixed cylinder and a connecting cylinder, the strength that consumes when reducing the installation makes the completion installation that the coupling can be quick.
2. Through the further fixed cylinder and the connecting cylinder that will connect of reverse joint unit fixed, prevent that inside oil pressure is too big and lead to the coupling to burst, through the antiskid ribbed tile on the protective cover can increase frictional force when fixed cylinder and connecting cylinder are connected, make things convenient for the installer to rotate fixed cylinder and carry out the joint.
3. Through the screw thread on the connecting pipe can be convenient install solid fixed cylinder and connecting cylinder in the junction of two oil pipes, can make the accurate intercommunication groove that passes of fixture block carry out the joint through the cooperation of stopper and spacing groove, make things convenient for the joint between solid fixed cylinder and the connecting cylinder.
4. Through the throw-out collar operating personnel grip when can be easy to assemble, can finish the back through this baffle and carry on spacingly to the stopper, prevent to take place to rock between solid fixed cylinder and the connecting cylinder when using, through the cooperation of first sealing washer and second sealing washer, can seal the junction, prevent the oil leak.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the backside structure of the present invention.
In the figure: the clamping device comprises a fixed cylinder 1, a connecting cylinder 2, a forward clamping unit 3, a communication groove 31, a fixed ring 32, a clamping groove 33, a clamping block 34, a moving ring 35, a spring 36, a supporting ring 37, a reverse clamping unit 4, a clamping plate 41, a moving groove 42, a reverse clamping groove 43, a protective cover 5, a antiskid plate 6, a thread 7, a connecting pipe 8, a limiting block 9, a limiting groove 10, a push ring 11, a fixing block 12, a baffle 13, a first sealing ring 14 and a second sealing ring 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a novel bidirectional clamping type pipe joint comprises a fixed cylinder 1, a connecting cylinder 2 and a forward clamping unit 3;
forward clamping unit 3: the positive clamping unit 3 comprises a communicating groove 31, a fixing ring 32, clamping grooves 33, clamping blocks 34, a moving ring 35, springs 36 and a support ring 37, the fixing ring 32 is arranged on the side surface of the right end of the fixing barrel 1, the outer diameter of the fixing ring 32 is equal to the inner diameter of the connecting barrel 2, four communicating grooves 31 are equidistantly arranged on the side surface of the fixing ring 32, four clamping grooves 33 are equidistantly arranged on the left side surface of the fixing ring 32, four clamping blocks 34 are equidistantly arranged on the inner side surface of the left end of the connecting barrel 2, the four clamping blocks 34 correspond to the four clamping grooves 33, the side surface of the support ring 37 is fixedly connected with the side surface of the right end of the connecting barrel 2, four springs 36 are arranged, the right end of each spring 36 is fixedly connected with the left side surface of the support ring 37, the left ends of the four springs 36 are fixedly connected with the right, and the internal diameter of shift ring 35 equals the internal diameter of solid fixed cylinder 1, can be with the quick connection of solid fixed cylinder 1 and connecting cylinder 2 through forward joint unit 3, make the junction at two oil pipes of the installation that solid fixed cylinder 1 and connecting cylinder 2 can be convenient, the strength that consumes when reducing the installation makes the completion installation that the coupling can be quick.
Wherein: still include reverse joint unit 4, reverse joint unit 4 includes joint board 41, shifting chute 42 and reverse draw-in groove 43, joint board 41 is the U type, and joint board 41 is equipped with two, the left end of two joint board 41 and the medial surface fixed connection of fixed cylinder 1 right-hand member, shifting chute 42 is equipped with two, the medial surface at support ring 37 is all established to two shifting chutes 42, reverse draw-in groove 43 is equipped with four, four reverse draw-in grooves 43 all establish the right flank at support ring 37, and four reverse draw-in grooves 43 correspond with two joint board 41, it is fixed with connecting cylinder 2 to further fixed cylinder 1 after connecting through reverse joint unit 4, prevent that inside oil pressure is too big and lead to the coupling to burst.
Wherein: still include protective cover 5 and antiskid ribbed tile 6, protective cover 5 establishes the middle part in solid fixed cylinder 1 side, and antiskid ribbed tile 6 array is in the side of protective cover 5, and protective cover 5's side array has and is no less than ten antiskid ribbed tiles 6, and antiskid ribbed tile 6 through on the protective cover 5 can increase frictional force when solid fixed cylinder 1 is connected with connecting cylinder 2, and the person of facilitating the installation rotates solid fixed cylinder 1 and carries out the joint.
Wherein: still include screw thread 7 and connecting pipe 8, connecting pipe 8 is equipped with two, and two connecting pipes 8 are established respectively at the left end of solid fixed cylinder 1 and the right-hand member of connecting cylinder 2, and the side of two connecting pipes 8 all is equipped with screw thread 7, and screw thread 7 through on the connecting pipe 8 can be convenient install solid fixed cylinder 1 and connecting cylinder 2 in the junction of two oil pipes.
Wherein: still include stopper 9 and spacing groove 10, stopper 9 is equipped with two, two stopper 9 all establish the medial surface at the protective cover 5 right-hand member, spacing groove 10 is the L type, and spacing groove 10 is equipped with two, two spacing grooves 10 are established in the side of connecting cylinder 2 left end, and two spacing grooves 10 correspond with two stopper 9, cooperation through stopper 9 and spacing groove 10 can make that fixture block 34 is accurate to pass intercommunication groove 31 and carry out the joint, make things convenient for the joint between solid fixed cylinder 1 and the connecting cylinder 2.
Wherein: the connecting cylinder is characterized by further comprising two push rings 11 and two fixing blocks 12, the two fixing blocks 12 are arranged on the side face of the middle portion of the connecting cylinder 2, the side face of each push ring 11 is fixedly connected with the side face of each fixing block 12, and an operator can hold the connecting cylinder conveniently during installation through the push rings 11.
Wherein: still include baffle 13, baffle 13 is the L type, and baffle 13 is equipped with two, the lateral wall in two 13 right-hand member side holes of baffle and the side sliding connection who pushes away ring 11, the right-hand member of two baffles 13 respectively with the right-hand member sliding connection of two spacing grooves 10, can accomplish the back through this baffle 13 and carry on spacingly to stopper 9, prevent to take place to rock between solid fixed cylinder 1 and the connecting cylinder 2 when using.
Wherein: the oil-leakage-prevention device further comprises a first sealing ring 14 and a second sealing ring 15, wherein the first sealing ring 14 is arranged on the right side face of the fixed cylinder 1, the second sealing ring 15 is arranged on the left side face of the moving ring 35, and the joint can be sealed through the matching of the first sealing ring 14 and the second sealing ring 15, so that oil leakage is prevented.
When in use: the fixed cylinder 1 and the connecting cylinder 2 are arranged at the connecting ends of two oil pipes through the threads 7 on the connecting pipe 8, the protective cover 5 and the push ring 11 are held by hands, the limit block 9 is inserted into the limit groove 10, the fixed cylinder 1 is inserted into the connecting cylinder 2, the fixture block 34 passes through the communicating groove 31 to move to the left side of the fixed ring 32 along with the rightward movement of the fixed cylinder 1, the fixed cylinder 1 can push the moving ring 35 to move rightwards, the moving ring 35 compresses the spring 36, the fixed cylinder 1 or the connecting cylinder 2 is rotated, the fixture block 34 rotates to the clamping groove 33, the elasticity of the spring 36 of the fixed cylinder 1 or the connecting cylinder 2 is loosened to push the fixed cylinder 1 to move leftwards, the fixture block 34 is clamped in the clamping groove 33, the clamping plate 41 can pass through the moving groove 42 to move the right side of the support ring 37 in the rightward movement process of the fixed cylinder 1, the clamping plate 41 can also rotate to the, when spring 36 promoted fixed section of thick bamboo 1, joint board 41 moves the card in reverse draw-in groove 43 left, promotes baffle 13, makes baffle 13 remove to one side in spacing groove 10 along the direction of pushing away ring 11, carries on spacingly to stopper 9 and can accomplish the installation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a novel two-way joint formula coupling which characterized in that: comprises a fixed cylinder (1), a connecting cylinder (2) and a forward clamping unit (3);
forward clamping unit (3): the positive clamping unit (3) comprises communicating grooves (31), fixing rings (32), clamping grooves (33), clamping blocks (34), moving rings (35), springs (36) and support rings (37), the fixing rings (32) are arranged on the side face of the right end of the fixing barrel (1), the outer diameters of the fixing rings (32) are equal to the inner diameter of the connecting barrel (2), four communicating grooves (31) are arranged on the side face of each fixing ring (32) at equal intervals, the four clamping grooves (33) are arranged on the left side face of each fixing ring (32) at equal intervals, the four clamping blocks (34) are arranged on the inner side face of the left end of the connecting barrel (2) at equal intervals, the four clamping blocks (34) correspond to the four clamping grooves (33), the side face of each support ring (37) is fixedly connected with the side face of the right end of the connecting barrel (2), and the four springs (36) are arranged, the right-hand member of four springs (36) and the left flank fixed connection of support ring (37), the left end of four springs (36) and the right flank fixed connection of removal ring (35), the medial surface sliding connection of the side of removal ring (35) and connecting cylinder (2), and the internal diameter of removal ring (35) equals the internal diameter of fixed section of thick bamboo (1).
2. The novel two-way clamping type pipe joint according to claim 1, characterized in that: still include reverse joint unit (4), reverse joint unit (4) are including joint board (41), shifting chute (42) and reverse draw-in groove (43), joint board (41) are the U type, and joint board (41) are equipped with two, the left end of two joint board (41) and the medial surface fixed connection of solid fixed cylinder (1) right-hand member, shifting chute (42) are equipped with two, and the medial surface at support ring (37) is all established in two shifting chutes (42), reverse draw-in groove (43) are equipped with four, and the right flank at support ring (37) is all established in four reverse draw-in grooves (43), and four reverse draw-in grooves (43) correspond with two joint board (41).
3. The novel two-way clamping type pipe joint according to claim 1, characterized in that: still include protective cover (5) and antiskid ribbed tile (6), establish the middle part in fixed section of thick bamboo (1) side in protective cover (5), antiskid ribbed tile (6) array is in the side of protective cover (5), and the side array of protective cover (5) has antiskid ribbed tile (6) that are no less than ten.
4. The novel two-way clamping type pipe joint according to claim 1, characterized in that: still include screw thread (7) and connecting pipe (8), connecting pipe (8) are equipped with two, and two connecting pipes (8) are established respectively at the left end of fixed cylinder (1) and the right-hand member of connecting cylinder (2), and the side of two connecting pipes (8) all is equipped with screw thread (7).
5. A novel two-way snap-fit pipe joint according to claim 3, wherein: still include stopper (9) and spacing groove (10), stopper (9) are equipped with two, and the medial surface at protective cover (5) right-hand member is all established in two stopper (9), spacing groove (10) are the L type, and spacing groove (10) are equipped with two, and the side at connecting cylinder (2) left end is established in two spacing grooves (10), and two spacing grooves (10) correspond with two stopper (9).
6. The novel two-way clamping type pipe joint according to claim 5, is characterized in that: the connecting cylinder is characterized by further comprising two push rings (11) and two fixing blocks (12), wherein the two fixing blocks (12) are arranged on the side face of the middle of the connecting cylinder (2), and the side face of each push ring (11) is fixedly connected with the side faces of the two fixing blocks (12).
7. The novel two-way clamping type pipe joint according to claim 6, wherein: still include baffle (13), baffle (13) are the L type, and baffle (13) are equipped with two, the lateral wall in two baffle (13) right-hand member side holes and the side sliding connection who pushes away ring (11), the right-hand member of two baffles (13) respectively with the right-hand member sliding connection of two spacing grooves (10).
8. The novel two-way clamping type pipe joint according to claim 1, characterized in that: still include first sealing washer (14) and second sealing washer (15), establish the right flank at fixed section of thick bamboo (1) in first sealing washer (14), establish the left surface at shift ring (35) in second sealing washer (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911133908.9A CN110836300A (en) | 2019-11-19 | 2019-11-19 | Novel two-way joint formula coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911133908.9A CN110836300A (en) | 2019-11-19 | 2019-11-19 | Novel two-way joint formula coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110836300A true CN110836300A (en) | 2020-02-25 |
Family
ID=69576711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911133908.9A Withdrawn CN110836300A (en) | 2019-11-19 | 2019-11-19 | Novel two-way joint formula coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110836300A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111492950A (en) * | 2020-05-28 | 2020-08-07 | 康淑迎 | A hand-held type watering device for municipal garden |
| CN111805142A (en) * | 2020-07-14 | 2020-10-23 | 南京佩尔哲汽车内饰***有限公司 | Pressing mechanism with pressure head structure capable of being replaced quickly |
| CN112228640A (en) * | 2020-11-03 | 2021-01-15 | 赵晓庆 | Sealing joint convenient to install for hydraulic pipe |
| CN114977044A (en) * | 2022-05-23 | 2022-08-30 | 塑龙管道科技沧州有限公司 | High-stability MPP power pipe connecting structure, connecting frame and mounting method thereof |
-
2019
- 2019-11-19 CN CN201911133908.9A patent/CN110836300A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111492950A (en) * | 2020-05-28 | 2020-08-07 | 康淑迎 | A hand-held type watering device for municipal garden |
| CN111805142A (en) * | 2020-07-14 | 2020-10-23 | 南京佩尔哲汽车内饰***有限公司 | Pressing mechanism with pressure head structure capable of being replaced quickly |
| CN112228640A (en) * | 2020-11-03 | 2021-01-15 | 赵晓庆 | Sealing joint convenient to install for hydraulic pipe |
| CN114977044A (en) * | 2022-05-23 | 2022-08-30 | 塑龙管道科技沧州有限公司 | High-stability MPP power pipe connecting structure, connecting frame and mounting method thereof |
| CN114977044B (en) * | 2022-05-23 | 2024-04-09 | 河北塑龙塑料管道制造有限公司 | High-stability MPP power tube connection installation method |
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| PB01 | Publication | ||
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Application publication date: 20200225 |
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| WW01 | Invention patent application withdrawn after publication |