CN113389720A - Conveniently-installed triple control pump and use method thereof - Google Patents
Conveniently-installed triple control pump and use method thereof Download PDFInfo
- Publication number
- CN113389720A CN113389720A CN202110585337.3A CN202110585337A CN113389720A CN 113389720 A CN113389720 A CN 113389720A CN 202110585337 A CN202110585337 A CN 202110585337A CN 113389720 A CN113389720 A CN 113389720A
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- Prior art keywords
- wall
- oil pipe
- shell
- control pump
- fixed
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 230000005489 elastic deformation Effects 0.000 claims description 7
- 206010015856 Extrasystoles Diseases 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 72
- 230000000694 effects Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000346 nonvolatile oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a triple control pump convenient to install and a using method thereof, wherein the triple control pump comprises a connector, the connector consists of a shell and an inner pipe, four grooves are equidistantly formed in the circumference of the shell, movable seats are movably connected between the inner walls of the two sides of the four grooves, arc-shaped grooves are formed in the outer walls of the lower sides of the four movable seats, pressing plates are fixedly connected with the inner walls of the arc-shaped grooves, extrusion blocks are movably connected with the outer walls of the upper sides of the movable seats, fixed sleeves are movably connected with the outer walls of the upper sides of the extrusion blocks, threaded grooves are formed in the inner walls of the fixed sleeves, threads are formed in the outer walls of the shell, and the fixed sleeves are movably connected with the shell. The invention adopts the connector fixed in an external rotating way to fix the oil pipe, replaces the flange or bolt which is frequently adopted at present to directly fix, improves the convenience for disassembling the oil pipe and is convenient for disassembling and assembling the whole triple control pump.
Description
Technical Field
The invention relates to the technical field of mechanical construction equipment, in particular to a triple control pump convenient to install and a using method thereof.
Background
The triple control pump is characterized in that three pump heads are connected in series, only one motor is needed to drive the three pump heads to work simultaneously, three pump heads do not affect each other except for working by the same rotating shaft, each pump head is provided with an independent oil inlet, an oil outlet and a pressure regulating valve, and the structure is generally used in the environment with large oil pressure difference among various parts due to impurity refution of an oil path.
At present, hydraulic transmission is often adopted in the construction of domestic engineering machinery, if master cylinder and slave cylinder work together, certain effect can be played, the master cylinder is that manual operation often does very greatly for needs, so for satisfying the demand the big that the slave cylinder also needs to do, consequently there are a great deal of troubles during installation and maintenance, for example when installing oil pipe between slave cylinder and the master cylinder, because there is not enough operating space, frequent dismouting screw is again dismantled in the installation of oil pipe, the operation degree of difficulty is very big.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a triple control pump convenient to install and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a trigeminy control pump convenient to installation, includes the connector, the connector comprises shell and inner tube, and circumference equidistance has seted up four recesses on the shell, and equal swing joint has a sliding seat, four between the both sides inner wall of four recesses arc recess has all been seted up to the downside outer wall of sliding seat, the inner wall fixedly connected with clamp plate of arc recess, and the upside outer wall swing joint of sliding seat has an extrusion piece, the upside outer wall swing joint of extrusion piece has fixed cover, and the threaded groove has been seted up to the inner wall of fixed cover, and the outer wall of shell is provided with the screw thread, swing joint between fixed cover and the shell.
Preferably, the lower side outer wall of clamp plate is provided with a plurality of rubber archs, and the outer wall equidistance of fixed cover has seted up anti-skidding groove.
Preferably, round holes are formed in two sides of the movable seat, a limiting rod is movably connected to the inner wall of each round hole, two ends of each limiting rod are fixedly connected with the inner walls of the two sides of the shell respectively, a first spring is sleeved outside each limiting rod, and two ends of each first spring are fixedly connected with the outer wall of one side of the shell and the outer wall of the bottom of the movable seat respectively.
Preferably, the outer shell and the inner pipe are welded, and an oil pipe placing groove is formed between the outer shell and the inner pipe.
Preferably, two symmetrical grooves are formed in the inner pipe, the inner walls of the two grooves are movably connected with fixing blocks, and a plurality of salient points are arranged on the outer wall of one side of each fixing block.
Preferably, one side outer wall fixedly connected with connecting plate of fixed block, one side outer wall fixedly connected with button of connecting plate, and a plurality of second springs of bottom outer wall fixedly connected with of connecting plate, fixed connection between the inner wall of second spring and inner tube.
Preferably, one end of each of the connectors is provided with a master cylinder, an incremental pump and an execution oil cylinder, an oil pipe is arranged between the two connectors, one end of the oil pipe is movably connected in an oil pipe placing groove between the outer shell and the inner pipe, and a sealing ring is arranged between the oil pipe and the oil pipe placing groove.
A method of using a triple control pump for ease of installation, comprising the steps of: when the oil pipe is installed, the button is pressed to enable the connecting plate to drive the fixed block to move until the fixed block shrinks to the inside of the inner pipe, then the oil pipe is inserted into the oil pipe placing groove, the fixed sleeve is rotated to enable the fixed sleeve to move transversely, in the moving process, the extrusion block applies pressure to the movable seat, the movable seat moves downwards in the shell, and therefore the contact degree of the pressing plate at the bottom of the movable seat and the outer wall of the oil pipe is gradually increased, and the oil pipe is fixed; when dismantling, then the fixed cover of reverse rotation, first spring provides ascending thrust for resumeing elastic deformation for the sliding seat makes progress the lifting, and the pressure that the oil pipe outer wall received disappears, presses the button afterwards again, and it can to extract oil pipe.
The invention has the beneficial effects that:
1. through the connector, the shell, the movable seat, the pressing plate, the extrusion block and the fixed sleeve, when the oil pipe is installed, the fixed sleeve is rotated outside to enable the oil pipe to move transversely after the oil pipe is inserted into the oil pipe placing groove, in the moving process, the extrusion block applies pressure to the movable seat, the movable seat moves downwards in the shell, and therefore the contact degree of the pressing plate at the bottom of the movable seat and the outer wall of the oil pipe is gradually increased, and the oil pipe is fixed; when the fixing sleeve is disassembled, the fixing sleeve is rotated reversely; the device adopts the fixed connector of outside rotation type to accomplish the fixed to oil pipe, replaces the flange or the bolt snap-on that adopt at present more, and the convenience when having improved oil pipe and dismantling conveniently carries out the holistic dismantlement installation of trigeminy control pump.
2. Through the arranged pressing plate and the fixed sleeve, the rubber bulge on the pressing plate can play a role in increasing friction force, the stability of the oil pipe after being fixed is improved, the falling-off phenomenon is avoided, the outer wall of the oil pipe is protected, and scratches caused by fixing are avoided; after the fixed sleeve is rotated reversely, the first spring provides upward thrust for recovering elastic deformation, so that the movable seat is lifted upwards, and the pressure on the outer wall of the oil pipe disappears; utilize the reverse effort that first spring provided, the playback of the sliding seat of being convenient for to be convenient for dismantle.
3. Through the arranged fixed block, the friction force between the fixed block and the inner wall of the oil pipe is increased by the salient points on the fixed block, so that the stable effect of the fixed oil pipe is improved; pressing the button to enable the connecting plate to drive the fixing block to move until the fixing block shrinks into the inner pipe, and then inserting the oil pipe into the oil pipe placing groove; the reverse acting force provided by the elastic deformation of the second spring is convenient for pushing the fixing block to contact with the inner wall of the oil pipe after the oil pipe is placed, so that the fixing effect of the oil pipe is improved; the sealing ring improves the sealing performance of the oil pipe after installation, thereby ensuring the oil liquid conveying effect.
Drawings
FIG. 1 is a schematic diagram of a connector structure of a triple control pump for easy installation according to the present invention;
FIG. 2 is a schematic cross-sectional view of the housing of a triple control pump of the present invention for ease of installation;
FIG. 3 is a schematic sectional view of a portion of the housing of a triple control pump of the present invention for ease of installation;
fig. 4 is a schematic structural diagram of a triple control pump convenient to install according to the present invention.
In the drawings: 1. a connector; 2. a housing; 3. a movable seat; 4. pressing a plate; 5. extruding the block; 6. fixing a sleeve; 7. a limiting rod; 8. a first spring; 9. an inner tube; 10. a fixed block; 11. a connecting plate; 12. a button; 13. a second spring; 14. a master cylinder; 15. an incremental pump; 16. an execution oil cylinder; 17. an oil pipe; 18. and (5) sealing rings.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
Example 1: referring to fig. 1-4, a trigeminy control pump convenient to installation, including connector 1, connector 1 comprises shell 2 and inner tube 9, and four recesses have been seted up to circumference equidistance on the shell 2, equal sliding connection has sliding seat 3 between the both sides inner wall of four recesses, the arc recess has all been seted up to the downside outer wall of four sliding seat 3, the inner wall of arc recess has clamp plate 4 through bolted connection, and sliding connection has extrusion piece 5 to the upside outer wall of sliding seat 3, sliding connection has fixed cover 6 to the upside outer wall of extrusion piece 5, the thread groove has been seted up to the inner wall of fixed cover 6, and the outer wall of shell 2 is provided with the screw thread, be connected through the screw thread rotation between fixed cover 6 and the shell 2.
According to the invention, the outer wall of the lower side of the pressing plate 4 is provided with the plurality of rubber bulges, the outer wall of the fixing sleeve 6 is provided with the anti-skidding grooves at equal intervals, the rubber bulges on the pressing plate 4 can play a role in increasing friction force, the stability of the fixed oil pipe 17 is improved, the falling-off phenomenon is avoided, the outer wall of the oil pipe is protected, and scratches caused by fixing are avoided.
According to the invention, round holes are formed in two sides of the movable seat 3, the limiting rod 7 is inserted into the inner wall of each round hole, two ends of the limiting rod 7 are respectively connected with the inner walls of two sides of the shell 2 through bolts, the first spring 8 is sleeved outside the limiting rod 7, two ends of the first spring 8 are respectively connected with the outer wall of one side of the shell 2 and the outer wall of the bottom of the movable seat 3 through bolts, and the movable seat 3 can conveniently return to the original position by utilizing the reverse acting force provided by the first spring 8, so that the movable seat is convenient to disassemble.
In the invention, the outer shell 2 and the inner tube 9 are welded, and an oil tube placing groove is arranged between the outer shell 2 and the inner tube 9.
In the invention, two symmetrical grooves are formed in the inner pipe 9, the inner walls of the two grooves are both connected with the fixing block 10 in a sliding manner, the outer wall of one side of the fixing block 10 is provided with a plurality of salient points, and the salient points on the fixing block 10 increase the friction force between the fixing block 10 and the inner wall of the oil pipe, so that the stabilizing effect of the oil pipe 17 after being fixed is improved.
According to the oil pipe 17 fixing device, the outer wall of one side of the fixing block 10 is connected with the connecting plate 11 through the bolt, the outer wall of one side of the connecting plate 11 is connected with the button 12 through the bolt, the outer wall of the bottom of the connecting plate 11 is connected with the plurality of second springs 13 through the bolt, the second springs 13 are connected with the inner wall of the inner pipe 9 through the bolt, reverse acting force provided by elastic deformation of the second springs 13 is convenient to push the fixing block 10 to be in contact with the inner wall of the oil pipe after the oil pipe 17 is placed, and therefore the fixing effect of the oil pipe 17 is improved.
In the invention, one end of each of the connectors 1 is respectively provided with a master pump 14, an incremental pump 15 and an execution oil cylinder 16, an oil pipe 17 is arranged between the two connectors 1, one end of the oil pipe 17 is inserted into an oil pipe placing groove between the outer shell 2 and the inner pipe 9, a sealing ring 18 is arranged between the oil pipe 17 and the oil pipe placing groove, and the sealing ring 18 improves the sealing performance of the installed oil pipe 17, thereby ensuring the oil liquid conveying effect.
The working principle is as follows: when the oil pipe 17 is used, when the oil pipe 17 is installed, the connecting plate 11 is driven by pressing the button 12 to drive the fixed block 10 to move until the fixed block 10 shrinks to the inside of the inner pipe 9, then the oil pipe 17 is inserted into the oil pipe placing groove, the fixed sleeve 6 is rotated to move transversely outside, in the moving process, the extrusion block 5 applies pressure to the movable seat 3, the movable seat 3 moves downwards in the shell 2, and therefore the contact degree of the pressure plate 4 at the bottom of the movable seat 3 and the outer wall of the oil pipe is gradually increased, and the oil pipe 17 is fixed; when dismantling, then fixed cover 6 of reverse rotation, first spring 8 provides ascending thrust for resumeing elastic deformation for the sliding seat 3 makes progress the lifting, and the pressure that the oil pipe outer wall received disappears, presses button 12 again afterwards, extracts oil pipe 17 can.
The using method comprises the following steps: when the oil pipe 17 is installed, the button 12 is pressed to enable the connecting plate 11 to drive the fixed block 10 to move until the fixed block 10 shrinks to the inside of the inner pipe 9, then the oil pipe 17 is inserted into the oil pipe placing groove, the fixed sleeve 6 is rotated to enable the fixed sleeve to move transversely, in the moving process, the extrusion block 5 applies pressure to the movable seat 3, the movable seat 3 moves downwards in the shell 2, and therefore the contact degree of the pressing plate 4 at the bottom of the movable seat 3 and the outer wall of the oil pipe is gradually increased, and the oil pipe 17 is fixed; when the disassembly is carried out, the fixed sleeve 6 is rotated reversely, the first spring 8 provides upward thrust for recovering elastic deformation, the movable seat 3 is lifted upwards, the pressure on the outer wall of the oil pipe disappears, then the button 12 is pressed, and the oil pipe 17 is pulled out
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a trigeminy control pump convenient to installation, includes connector (1), its characterized in that, connector (1) comprises shell (2) and inner tube (9), and shell (2) go up the circumference equidistance and seted up four recesses, equal swing joint has sliding seat (3), four between the both sides inner wall of four recesses arc recess has all been seted up to the downside outer wall of sliding seat (3), and the inner wall fixedly connected with clamp plate (4) of arc recess, and the upside outer wall swing joint of sliding seat (3) has extrusion block (5), the upside outer wall swing joint of extrusion block (5) has fixed cover (6), and the thread groove has been seted up to the inner wall of fixed cover (6), and the outer wall of shell (2) is provided with the screw thread, swing joint between fixed cover (6) and shell (2).
2. The triple control pump convenient to install according to claim 1, wherein the outer wall of the lower side of the pressure plate (4) is provided with a plurality of rubber protrusions, and the outer wall of the fixed sleeve (6) is provided with anti-skid grooves at equal intervals.
3. The triple control pump convenient to mount according to claim 1, wherein round holes are formed in two sides of the movable seat (3), a limiting rod (7) is movably connected to the inner wall of each round hole, two ends of each limiting rod (7) are fixedly connected with the inner walls of two sides of the shell (2) respectively, a first spring (8) is sleeved outside each limiting rod (7), and two ends of each first spring (8) are fixedly connected with the outer wall of one side of the shell (2) and the outer wall of the bottom of the movable seat (3) respectively.
4. Triple control pump easy to install according to claim 1, characterized by the fact that the outer casing (2) is welded to the inner pipe (9) and that between the outer casing (2) and the inner pipe (9) there is provided an oil pipe placement groove.
5. The triple control pump convenient to mount as claimed in claim 4, wherein the inner tube (9) is provided with two symmetrical grooves, the inner walls of the two grooves are movably connected with a fixing block (10), and the outer wall of one side of the fixing block (10) is provided with a plurality of salient points.
6. The triple control pump convenient to mount as claimed in claim 5, wherein a connecting plate (11) is fixedly connected to the outer wall of one side of the fixing block (10), a button (12) is fixedly connected to the outer wall of one side of the connecting plate (11), a plurality of second springs (13) are fixedly connected to the outer wall of the bottom of the connecting plate (11), and the second springs (13) are fixedly connected to the inner wall of the inner tube (9).
7. The triple control pump convenient to install according to claim 1, wherein a master cylinder (14), an incremental pump (15) and an execution cylinder (16) are respectively arranged at one end of each of the connectors (1), an oil pipe (17) is arranged between the two connectors (1), one end of the oil pipe (17) is movably connected in an oil pipe placing groove between the outer shell (2) and the inner pipe (9), and a sealing ring (18) is arranged between the oil pipe (17) and the oil pipe placing groove.
8. A method of using a triple control pump for ease of installation, comprising the steps of: when the oil pipe (17) is installed, the button (12) is pressed to enable the connecting plate (11) to drive the fixed block (10) to move until the fixed block (10) shrinks to the inside of the inner pipe (9), then the oil pipe (17) is inserted into the oil pipe placing groove, the fixed sleeve (6) is rotated to enable the fixed sleeve to move transversely, in the moving process, the extrusion block (5) applies pressure to the movable seat (3), the movable seat (3) moves downwards in the shell (2), and therefore the contact degree of the pressing plate (4) at the bottom of the movable seat (3) and the outer wall of the oil pipe is gradually increased, and the oil pipe (17) is fixed; when dismantling, then fixed cover (6) of reverse rotation, first spring (8) provide ascending thrust for resumeing elastic deformation for sliding seat (3) makes progress the lifting, and the pressure that the oil pipe outer wall received disappears, presses button (12) again afterwards, and it can to extract oil pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110585337.3A CN113389720A (en) | 2021-05-27 | 2021-05-27 | Conveniently-installed triple control pump and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110585337.3A CN113389720A (en) | 2021-05-27 | 2021-05-27 | Conveniently-installed triple control pump and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113389720A true CN113389720A (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110585337.3A Pending CN113389720A (en) | 2021-05-27 | 2021-05-27 | Conveniently-installed triple control pump and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113389720A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061268A (en) * | 1990-10-30 | 1992-05-20 | 克劳福德器材公司 | Pipe joint |
| CN2260941Y (en) * | 1996-12-11 | 1997-08-27 | 佛山市日丰企业有限公司 | Temp.-resistant pressure-resistant pipe joint easy for mounting and dismounting |
| CN2260942Y (en) * | 1996-09-06 | 1997-08-27 | 四川省成都聚星塑胶有限公司 | Quick-acting pipeline joint |
| GB2323418A (en) * | 1997-03-21 | 1998-09-23 | Bristol Myers Squibb Co | Squeeze to release female conduit coupling member |
| WO2011116271A1 (en) * | 2010-03-18 | 2011-09-22 | Swagelok Company | Fitting for jacketed tubing |
| CN204099786U (en) * | 2014-07-29 | 2015-01-14 | 山东永志石油装备有限公司 | Flared type pipe connecting device |
| CN105276317A (en) * | 2015-11-20 | 2016-01-27 | 朱德伟 | Novel pressure hose and connecting component thereof |
| CN205606029U (en) * | 2016-04-21 | 2016-09-28 | 成都来宝石油设备有限公司 | Rotatory oil pipe connecting piece is prevented to telescopic link |
| CN208431045U (en) * | 2018-07-13 | 2019-01-25 | 浙江宏博汽配有限公司 | A kind of oil filter body |
| CN209340701U (en) * | 2018-10-18 | 2019-09-03 | 廖仲毅 | A kind of inserted valve Quick-mounting joint |
| CN211175814U (en) * | 2019-09-16 | 2020-08-04 | 武汉青山北湖南丰设备有限公司 | Hydraulic pipe sealing joint for hose assembly |
| CN211423612U (en) * | 2020-01-09 | 2020-09-04 | 郑洪斌 | Internal connecting bush of oil field gathering pipeline |
| CN211951777U (en) * | 2020-04-07 | 2020-11-17 | 青岛华宏达电气有限公司 | Pipeline interface convenient to it is fixed |
-
2021
- 2021-05-27 CN CN202110585337.3A patent/CN113389720A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061268A (en) * | 1990-10-30 | 1992-05-20 | 克劳福德器材公司 | Pipe joint |
| CN2260942Y (en) * | 1996-09-06 | 1997-08-27 | 四川省成都聚星塑胶有限公司 | Quick-acting pipeline joint |
| CN2260941Y (en) * | 1996-12-11 | 1997-08-27 | 佛山市日丰企业有限公司 | Temp.-resistant pressure-resistant pipe joint easy for mounting and dismounting |
| GB2323418A (en) * | 1997-03-21 | 1998-09-23 | Bristol Myers Squibb Co | Squeeze to release female conduit coupling member |
| WO2011116271A1 (en) * | 2010-03-18 | 2011-09-22 | Swagelok Company | Fitting for jacketed tubing |
| CN204099786U (en) * | 2014-07-29 | 2015-01-14 | 山东永志石油装备有限公司 | Flared type pipe connecting device |
| CN105276317A (en) * | 2015-11-20 | 2016-01-27 | 朱德伟 | Novel pressure hose and connecting component thereof |
| CN205606029U (en) * | 2016-04-21 | 2016-09-28 | 成都来宝石油设备有限公司 | Rotatory oil pipe connecting piece is prevented to telescopic link |
| CN208431045U (en) * | 2018-07-13 | 2019-01-25 | 浙江宏博汽配有限公司 | A kind of oil filter body |
| CN209340701U (en) * | 2018-10-18 | 2019-09-03 | 廖仲毅 | A kind of inserted valve Quick-mounting joint |
| CN211175814U (en) * | 2019-09-16 | 2020-08-04 | 武汉青山北湖南丰设备有限公司 | Hydraulic pipe sealing joint for hose assembly |
| CN211423612U (en) * | 2020-01-09 | 2020-09-04 | 郑洪斌 | Internal connecting bush of oil field gathering pipeline |
| CN211951777U (en) * | 2020-04-07 | 2020-11-17 | 青岛华宏达电气有限公司 | Pipeline interface convenient to it is fixed |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210914 |