CN111425665A - Hydraulic locking device for external aligning device for pipeline construction - Google Patents
Hydraulic locking device for external aligning device for pipeline construction Download PDFInfo
- Publication number
- CN111425665A CN111425665A CN202010319736.0A CN202010319736A CN111425665A CN 111425665 A CN111425665 A CN 111425665A CN 202010319736 A CN202010319736 A CN 202010319736A CN 111425665 A CN111425665 A CN 111425665A
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- threads
- pump body
- locking
- hydraulic
- fixed
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- 238000010276 construction Methods 0.000 title claims abstract description 15
- 239000002775 capsule Substances 0.000 claims abstract description 38
- 238000003860 storage Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 53
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000004313 glare Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- 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
- F04B53/02—Packing the free space between cylinders and pistons
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
-
- 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
- F04B53/162—Adaptations of cylinders
-
- 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
- F04B53/162—Adaptations of cylinders
- F04B53/166—Cylinder liners
-
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/14—Pumps characterised by muscle-power operation
-
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/12—Laying or reclaiming pipes on or under water
- F16L1/20—Accessories therefor, e.g. floats, weights
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
A hydraulic locking device of an external aligning device for pipeline construction is characterized in that a special hydraulic manual pump is a power source of the hydraulic locking device, a locking mechanism is installed on a cylinder barrel of the special hydraulic manual pump through a locking shaft B through threads, when pipelines are assembled, an assembling fixing ring A and an assembling fixing ring B which are connected through connecting pin shafts are arranged on the pipelines, a rocker is connected with a pump body through a rocker fixing pin, and a piston is connected with a piston rod through a piston connecting pin; the guide sleeve is fixed on the cylinder barrel through threads, the oil outlet valve is fixed on the pump body through threads, the oil storage capsule is placed in the capsule shell, a needle hole is formed in the bottom of the capsule shell, a steel ball is placed in the pump body and used for closing and opening an unloading oil return port, and the unloading valve rod is connected with a hand wheel through a hand wheel fixing pin and is fixed on the pump body together with an unloading valve sleeve through threads; the advantages are that: compact structure, light weight, large locking force, low failure rate, simple operation, safety, reliability and low labor intensity.
Description
Technical Field
The invention relates to the technical field of pipeline construction, in particular to a hydraulic locking device of an external butt joint device for pipeline construction.
Background
The pipeline external butt joint device is an essential device for pipe orifice group in pipeline construction, is used for realizing butt joint of two pipelines and ensures that the misalignment amount of the two pipelines needing to be connected is within a certain technical requirement range. The external aligning device is widely used in pipeline construction engineering, including line connecting head collision, pipe orifice assembly and station pipe fitting installation. The main structural form of the existing external orifice aligning device for the pipeline comprises a lever type external orifice aligning device, a chain type external orifice aligning device for the pipeline, a hydraulic jack type external orifice aligning device and the like, and the main structural form of the existing external orifice aligning device for the pipeline has the defects of heavy structure, inconvenient operation, high labor intensity of operators and the like, so that a hydraulic locking device special for the external orifice aligning device, which can solve the defects, is urgently needed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a hydraulic locking device of an external butt joint device for pipeline construction, and the technical scheme of the invention is as follows: the utility model provides a pipeline construction external counter-bore ware fluid pressure type locking device, includes: a special hydraulic manual pump and a locking mechanism; the special hydraulic manual pump comprises a pump body, a rocker, a plunger sleeve, a piston rod, a cylinder barrel, a threaded cap, an oil outlet valve, an oil suction valve, an oil storage capsule and a capsule shell, and is a power source of the hydraulic locking device; the locking mechanism is installed on a cylinder barrel of the special hydraulic manual pump through threads by a locking shaft B, the locking shaft A and a pull rod seat are connected together through a pull rod, and a return spring is installed between the locking shaft A and the locking shaft B; when the pipeline is assembled, the assembling fixing ring A and the assembling fixing ring B which are connected through the connecting pin shaft are arranged on the pipeline, and the bolt adjusting seat is contacted with the outer surface of the pipeline; a locking shaft A and a locking shaft B of the hydraulic locking device are arranged outside the locking seat A and the locking seat B and are used for tensioning the assembly fixing ring A and the assembly fixing ring B; the special hydraulic manual pump is a power source of the hydraulic locking device; the rocker is connected with the pump body through a rocker fixing pin, the rocker is connected with the plunger through a plunger connecting pin, the plunger slides in the plunger sleeve, and the plunger sleeve is fixed on the pump body through threads; the cylinder barrel is fixed on the pump body through threads, the end face of the cylinder barrel is sealed with the pump body through an O-shaped ring B, the piston is connected with the piston rod through a piston connecting pin and is arranged in the cylinder barrel, and a Glare ring is arranged on the piston; the guide sleeve is fixed on the cylinder barrel through threads and is a guide body of the piston rod; the threaded cap is arranged at the end part of the piston rod through threads, and the end part of the piston rod plays a role in protecting the piston rod when stressed; the oil outlet valve is fixed on the pump body through threads, and hydraulic oil enters the bottom of the piston through the oil outlet valve; the technical hole plug is fixed on the pump body through threads to seal a technical hole processed on the pump body; the oil suction valve is fixed on the pump body through threads, and hydraulic oil enters the plunger sleeve through the oil suction valve; the oil storage capsule is placed in the capsule shell, the oil storage capsule is fixed in the capsule shell through a pressing sleeve, the capsule shell is fixed on the pump body through threads, the pressing sleeve and the pump body are sealed through an O-shaped ring A end face, a steel ball is placed in the pump body and used for closing and opening an unloading oil return port, and an unloading valve rod is connected with a hand wheel through a hand wheel fixing pin and is fixed on the pump body together with an unloading valve sleeve through threads; the locking shaft B is fixed on the cylinder barrel through threads, the locking shaft A is connected with the pull rod through threads, the pull rod seat is connected with the locking shaft A through the pull rod, and the return spring is located between the locking shaft A and the locking shaft B.
The piston is made of copper materials and can slide in the cylinder barrel.
The guide sleeve is made of copper material.
The locking shaft A can slide on the cylinder barrel.
The bottom of the capsule shell is provided with a pinhole to balance the negative pressure generated when the oil storage capsule absorbs oil.
The invention has the beneficial effects that: the hydraulic locking device composed of the special hydraulic manual pump and the locking mechanism has compact structure, light weight, large assembly locking force and low failure rate; the pipe orifice assembling process is simple to operate, safe and reliable, and labor intensity of operators is reduced.
Drawings
Fig. 1 is a schematic view of an application state of the present invention.
Fig. 2 is a front view of an installation diagram of the present invention.
Fig. 3 is a top view of an installation of the present invention.
Fig. 4 is a structural view of a dedicated hydraulic manual pump of the present invention.
Fig. 5 is a structural sectional view of the special hydraulic manual pump of the invention.
In the figure: 1 is a hydraulic locking device, 2 is a locking seat A, 3 is a bolt adjusting seat, 4 is an adjusting bolt, 5 is a group fixing ring A, 6 is a connecting pin shaft, 7 is a group fixing ring B, 8 is a pipeline, 9 is a locking seat B, 10 is a special hydraulic manual pump, 11 is a locking shaft A, 12 is a return spring, 13 is a pull rod, 14 is a locking shaft B, 15 is a pull rod seat, 16 is a pressing sleeve, 17 is an O-shaped ring A, 18 is a rocker fixing pin, 19 is a plunger connecting pin, 20 is a plunger, 21 is a plunger sleeve, 22 is an O-shaped ring B, 23 is a piston, 24 is a rocker, 25 is a threaded cap, 26 is a guide sleeve, 27 is a piston rod, 28 is a cylinder barrel, 29 is a piston connecting pin, 30 is a Glare ring, 31 is an oil outlet valve, 32 is a technical hole plug, 33 is a pump body, 34 is an oil suction valve, 35 is an oil storage capsule, 36 is a capsule shell, 37 is an overflow valve, 38 is a steel ball, 39 is an unloading valve, 40 is an unloading valve rod, 41 is a hand wheel fixing pin, 42 is an unloading hand wheel, 43 is a capsule shell pinhole, 44 is hydraulic oil, 45 is an overflow oil return port, and 46 is an unloading oil return port.
Detailed Description
In order to make the technical solution of the present invention more comprehensive, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The utility model provides a pipeline construction external counter-bore ware fluid pressure type locking device, includes: a special hydraulic manual pump 10 and a locking mechanism; the special hydraulic manual pump 10 comprises a pump body 33, a rocker 24, a plunger 20, a plunger sleeve 21, a piston 23, a piston rod 27, a cylinder barrel 28, a threaded cap 25, an oil outlet valve 31, an oil suction valve 34, an oil storage capsule 35 and a capsule shell 36, and the special hydraulic manual pump 10 is a power source of the hydraulic locking device 1; the locking mechanism is installed on a cylinder 28 of the special hydraulic manual pump 10 through threads by a locking shaft B14, the locking shaft A11 and a pull rod seat 15 are connected together through a pull rod 13, and a return spring 12 is installed between the locking shaft A11 and the locking shaft B14; when the pipelines 8 are assembled, the assembling fixing ring A5 and the assembling fixing ring B7 which are connected through the connecting pin shaft 6 are arranged on the pipelines 8, and the bolt adjusting seat 3 is contacted with the outer surface of the pipeline 8; the locking shaft A11 and the locking shaft B14 of the hydraulic locking device 1 are placed outside the locking seat A2 and the locking seat B9 and used for tensioning the pairing fixing ring A5 and the pairing fixing ring B7; the special hydraulic manual pump 10 is a power source of the hydraulic locking device 1; the rocker 24 is connected with the pump body 33 through a rocker fixing pin 18, the rocker 24 is connected with the plunger 20 through a plunger connecting pin 19, the plunger 20 slides in the plunger sleeve 21, and the plunger sleeve 21 is fixed on the pump body 33 through threads; the cylinder 28 is fixed on the pump body 33 through screw threads, the end face of the cylinder 28 and the pump body 33 are sealed through an O-shaped ring B22, the piston 23 is connected with the piston rod 27 through a piston connecting pin 29 and is arranged in the cylinder 28, and the piston 23 is provided with a Glare ring 30; the guide sleeve 26 is fixed on the cylinder barrel 28 through threads and is a guide body of the piston rod 27; the threaded cap 25 is mounted at the end of the piston rod 27 through threads, and the end of the piston rod 27 plays a role in protecting the piston rod 27 when being stressed; the oil outlet valve 31 is fixed on the pump body 33 through threads, and hydraulic oil 44 enters the bottom of the piston 23 through the oil outlet valve 31; the fabrication hole plug 32 is fixed on the pump body 33 through threads, and the fabrication hole of the pump body 33 is sealed; the oil suction valve 34 is fixed on the pump body 33 through threads, and hydraulic oil 44 enters the plunger sleeve 21 through the oil suction valve 34; the oil storage capsule 35 is placed in the capsule shell 36, the oil storage capsule 35 is fixed in the capsule shell 36 through the pressing sleeve 16, the capsule shell 36 is fixed on the pump body 33 through threads, the pressing sleeve 16 and the pump body 33 are sealed through the end face of an O-shaped ring A17, the steel ball 38 is placed in the pump body 33 and used for closing and opening the unloading oil return port 46, and the unloading valve rod 40 is connected with the hand wheel 42 through the hand wheel fixing pin 41 and is fixed on the pump body 33 through threads together with the unloading valve sleeve 39; the locking shaft B14 is fixed on the cylinder 28 through screw thread, the locking shaft A11 is connected with the pull rod 13 through screw thread, the pull rod seat 15 is connected with the locking shaft A11 through the pull rod 13, and the return spring 12 is arranged between the locking shaft A11 and the locking shaft B14.
The piston 23 is made of copper material and can slide in the cylinder 28.
The guide sleeve 26 is a copper material.
The locking shaft a11 is slidable on the cylinder 28.
The bottom of the capsule shell 36 is provided with a pinhole to balance the negative pressure generated when the oil storage capsule 35 absorbs oil.
When the pipeline 8 is assembled in an assembly operation, the unloading hand wheel 42 is rotated to drive the unloading valve rod 40 to press the steel ball 38 to seal the unloading oil return opening 46; the rocker 24 is lifted, the plunger 20 moves upwards, the oil outlet valve 31 is closed, and the hydraulic oil 44 enters the lower end of the plunger 20 through the oil suction valve 34; the hydraulic oil 44 is stored in the oil storage capsule 35, and the negative pressure formed during oil absorption is balanced with the external air pressure through the capsule shell needle hole 43 on the capsule shell 36; the rocker 24 is pressed down, the plunger 20 moves downwards, the oil suction valve 34 is closed, and the generated high-pressure hydraulic oil 44 enters the bottom of the piston 23 through the oil outlet valve 31 to push the piston 23 and the piston rod 27 connected with the piston connecting pin 29 to move along the inner wall of the cylinder 28; the threaded cap 25 is in contact with the pull rod seat 15, the pull rod seat 15 and the pull rod 13 drive the locking shaft A11 to move along the outer wall of the cylinder 28, so that the relative position of the locking shaft A11 and the locking shaft B14 is reduced, and the locking seat A2 and the locking seat B9 are tightened to enable the pairing fixing ring A5 and the pairing fixing ring B7 to fasten the pipeline 8; the adjusting bolt 4 can finely adjust the group misalignment amount when the pipelines 8 are paired.
When the pump pressure exceeds the set pressure of the relief valve 37 during the operation of the dedicated hydraulic manual pump 10, the relief valve 37 operates, and the hydraulic oil 44 flows back into the oil storage capsule 35 through the relief oil return port 45.
After the pipeline 8 is assembled, the unloading hand wheel 42 is rotated to drive the unloading valve rod 40 to loosen the steel ball 38, and the unloading oil return port 46 is opened; the locking shaft A11 moves under the action of the return spring 12 and pushes the pull rod 13 and the pull rod seat 15, so that the piston rod 27 and the piston 23 retract, and the hydraulic oil 44 in the cylinder 28 flows back into the oil storage capsule 35 through the unloading oil return opening 46; after the locking shaft a11 returns to the initial position, the hydraulic locking device 1 is removed from the pair of fixed rings.
Claims (5)
1. The utility model provides a pipeline construction external counter-bore ware fluid pressure type locking device, includes: a special hydraulic manual pump (10) and a locking mechanism; the method is characterized in that: the special hydraulic manual pump (10) comprises a pump body (33), a rocker (24), a plunger (20), a plunger sleeve (21), a piston (23), a piston rod (27), a cylinder barrel (28), a threaded cap (25), an oil outlet valve (31), an oil suction valve (34), an oil storage capsule (35) and a capsule shell (36), and the special hydraulic manual pump (10) is a power source of the hydraulic locking device (1); the locking mechanism is installed on a cylinder (28) of the special hydraulic manual pump (10) through threads by a locking shaft B (14), the locking shaft A (11) and a pull rod seat (15) are connected together through a pull rod (13), and a return spring (12) is installed between the locking shaft A (11) and the locking shaft B (14); when the pipelines (8) are assembled, the assembling fixing rings A (5) and the assembling fixing rings B (7) which are connected through the connecting pin shafts (6) are arranged on the pipelines (8), and the bolt adjusting seats (3) are in contact with the outer surfaces of the pipelines (8); a locking shaft A (11) and a locking shaft B (14) of the hydraulic locking device (1) are arranged on the outer sides of a locking seat A (2) and a locking seat B (9) and are used for tensioning a group-fitting fixing ring A (5) and a group-fitting fixing ring B (7); the special hydraulic manual pump 10 is a power source of the hydraulic locking device (1); the rocker (24) is connected with the pump body (33) through a rocker fixing pin (18), the rocker (24) is connected with the plunger (20) through a plunger connecting pin (19), the plunger (20) slides in the plunger sleeve (21), and the plunger sleeve (21) is fixed on the pump body (33) through threads; the cylinder barrel (28) is fixed on the pump body (33) through threads, the end face of the cylinder barrel (28) and the pump body (33) are sealed through an O-shaped ring B (22), the piston (23) is connected with the piston rod (27) through a piston connecting pin (29) and is arranged in the cylinder barrel (28), and the piston (23) is provided with a Glay ring (30); the guide sleeve (26) is fixed on the cylinder barrel (28) through threads and is a guide body of the piston rod (27); the threaded cap (25) is mounted at the end part of the piston rod (27) through threads, and the end part of the piston rod (27) plays a role in protecting the piston rod (27) when stressed; the oil outlet valve (31) is fixed on the pump body (33) through threads, and hydraulic oil (44) enters the bottom of the piston (23) through the oil outlet valve (31); the fabrication hole plug (32) is fixed on the pump body (33) through threads, and the fabrication hole of the pump body (33) is sealed; the oil suction valve (34) is fixed on the pump body (33) through threads, and hydraulic oil (44) enters the plunger sleeve (21) through the oil suction valve (34); an oil storage capsule (35) is placed in a capsule shell (36), the oil storage capsule (35) is fixed in the capsule shell (36) through a pressing sleeve (16), the capsule shell (36) is fixed on a pump body (33) through threads, the pressing sleeve (16) and the pump body (33) are sealed through the end face of an O-shaped ring A (17), steel balls (38) are placed in the pump body (33) and used for closing and opening an unloading oil return port (46), an unloading valve rod (40) is connected with a hand wheel (42) through a hand wheel fixing pin (41) and is fixed on the pump body (33) together with an unloading valve sleeve (39) through threads; the locking shaft B (14) is fixed on the cylinder barrel (28) through threads, the locking shaft A (11) is connected with the pull rod (13) through threads, the pull rod seat (15) is connected with the locking shaft A (11) through the pull rod (13), and the return spring (12) is located between the locking shaft A (11) and the locking shaft B (14).
2. The hydraulic locking device of the external counter-mouth device for pipeline construction according to claim 1, characterized in that: the piston (23) is made of copper materials and can slide in the cylinder barrel (28).
3. The hydraulic locking device of the external counter-mouth device for pipeline construction according to claim 1, characterized in that: the guide sleeve (26) is made of copper material.
4. The hydraulic locking device of the external counter-mouth device for pipeline construction according to claim 1, characterized in that: the locking shaft A (11) can slide on the cylinder barrel (28).
5. The hydraulic locking device of the external counter-mouth device for pipeline construction according to claim 1, characterized in that: the bottom of the capsule shell (36) is provided with a pinhole to balance the negative pressure generated when the oil storage capsule (35) absorbs oil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010319736.0A CN111425665A (en) | 2020-04-22 | 2020-04-22 | Hydraulic locking device for external aligning device for pipeline construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010319736.0A CN111425665A (en) | 2020-04-22 | 2020-04-22 | Hydraulic locking device for external aligning device for pipeline construction |
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CN111425665A true CN111425665A (en) | 2020-07-17 |
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Application Number | Title | Priority Date | Filing Date |
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CN202010319736.0A Pending CN111425665A (en) | 2020-04-22 | 2020-04-22 | Hydraulic locking device for external aligning device for pipeline construction |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB700422A (en) * | 1951-07-19 | 1953-12-02 | Augustus George Chamberlain | Improvements in or relating to tube-bending machines |
CN2325175Y (en) * | 1998-03-11 | 1999-06-23 | 宋民 | Hydraulic device for withdrawing bearings |
CN1876329A (en) * | 2006-07-03 | 2006-12-13 | 中国海洋石油总公司 | Internal aligning device for pipe |
CN202591904U (en) * | 2012-03-30 | 2012-12-12 | 洛阳德平机械设备有限公司 | External alignment instrument for pipelines |
RU123470U1 (en) * | 2012-05-24 | 2012-12-27 | Александр Вячеславович Титов | MANUAL HYDRAULIC PUMP |
CN206273523U (en) * | 2016-11-24 | 2017-06-23 | 郭成城 | A kind of hand hydraulic pressure pipe pincers |
CN212004550U (en) * | 2020-04-22 | 2020-11-24 | 中石化石油工程技术服务有限公司 | Hydraulic locking device for external aligning device for pipeline construction |
-
2020
- 2020-04-22 CN CN202010319736.0A patent/CN111425665A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB700422A (en) * | 1951-07-19 | 1953-12-02 | Augustus George Chamberlain | Improvements in or relating to tube-bending machines |
CN2325175Y (en) * | 1998-03-11 | 1999-06-23 | 宋民 | Hydraulic device for withdrawing bearings |
CN1876329A (en) * | 2006-07-03 | 2006-12-13 | 中国海洋石油总公司 | Internal aligning device for pipe |
CN202591904U (en) * | 2012-03-30 | 2012-12-12 | 洛阳德平机械设备有限公司 | External alignment instrument for pipelines |
RU123470U1 (en) * | 2012-05-24 | 2012-12-27 | Александр Вячеславович Титов | MANUAL HYDRAULIC PUMP |
CN206273523U (en) * | 2016-11-24 | 2017-06-23 | 郭成城 | A kind of hand hydraulic pressure pipe pincers |
CN212004550U (en) * | 2020-04-22 | 2020-11-24 | 中石化石油工程技术服务有限公司 | Hydraulic locking device for external aligning device for pipeline construction |
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