CN216741402U - Stepping type oil pipe continuous injection device - Google Patents
Stepping type oil pipe continuous injection device Download PDFInfo
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- CN216741402U CN216741402U CN202122810595.5U CN202122810595U CN216741402U CN 216741402 U CN216741402 U CN 216741402U CN 202122810595 U CN202122810595 U CN 202122810595U CN 216741402 U CN216741402 U CN 216741402U
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Abstract
The utility model discloses a stepping type oil pipe continuous injection device, which relates to the technical field of continuous oil pipe operation and comprises a box body, wherein the centers of a top plate and a bottom plate of the box body are symmetrically provided with an inlet hole and an outlet hole which are matched with an oil pipe; the clamping device comprises a box body, a first clamping mechanism, a second clamping mechanism, a first expansion piece and a second expansion piece, wherein the box body is internally provided with a plurality of holes; the first expansion piece and the second expansion piece are vertically and fixedly arranged in the box body, and the expansion ends of the first expansion piece and the second expansion piece are respectively and fixedly connected with the first clamping mechanism and the second clamping mechanism; the fixed end of the first expansion piece is fixedly arranged on the top plate of the box body, and the fixed end of the second expansion piece is fixedly arranged on the bottom plate of the box body; the device adopts the oil cylinder for driving, the stepping type is injected into the oil pipe, the power is sufficient and stable, the oil pipe is injected more smoothly, and the abrasion degree of the oil pipe is greatly reduced to a great extent.
Description
Technical Field
The utility model relates to the technical field of coiled tubing operation, in particular to a stepping type coiled tubing continuous injection device.
Background
The coiled tubing operation equipment is one of special oil field operation equipment, the coiled tubing is a tubing made of low-carbon alloy steel and has good flexibility, the coiled tubing is also called as a flexible tubing, one coiled tubing is several kilometers long, and can replace a conventional tubing to carry out a lot of operations, and the coiled tubing operation equipment has the characteristics of operation under pressure and continuous lifting, and has the advantages of small equipment volume, quick operation period, low cost and the like.
Chinese patent CN203547601U discloses a clamping wheel type continuous oil pipe injection head device, which comprises a power control device and a transmission injection device; the power control device comprises a power control bracket, a hydraulic power source and an electric cabinet, wherein the hydraulic power source and the electric cabinet are fixedly arranged on the power control bracket; the transmission injection device comprises a transmission injection support, a front side plate, a rear side plate, single-layer bottom plates and a clamping transmission device, wherein the front side plate and the rear side plate are fixedly installed on the transmission injection support at intervals from front to back, at least three single-layer bottom plates are fixedly installed between the front side plate and the rear side plate at intervals from top to bottom, and the clamping transmission device is fixedly installed on each single-layer bottom plate; the clamping transmission device comprises a hydraulic motor, a reversing valve, a coupler, a driving wheel, a driven wheel, a driving shaft assembly and a driven shaft assembly; the technical scheme has the advantages of complex structure, small driving force for lowering the well and larger abrasion to the coiled tubing.
Chinese patent CN203783495U discloses a wheel type coiled tubing injection device, which comprises an injection wheel with a rotating shaft horizontally arranged, wherein the injection wheel is rotatably arranged on an injection wheel support frame and driven by a transmission mechanism, the injection wheel support frame is fixedly arranged on a frame, and the outer edge of the injection wheel support frame is larger than the diameter of the injection wheel; a plurality of fixed supports arranged at intervals are arranged around the circumferential surface of the upper part of the injection wheel, each fixed support is fixed on the injection wheel support frame, and the bottom of each fixed support keeps a certain distance from the circumferential surface of the injection wheel; the bottom of each fixed support is connected with a clamping wheel bracket through a clamping hydraulic cylinder, a clamping wheel is pivoted on the clamping wheel bracket, and a rotating shaft of each clamping wheel is arranged in parallel with a rotating shaft of the injection wheel; the coiled tubing coiled on the roller is wound on the injection wheel and is pressed on the wheel surface of the injection wheel by a plurality of clamping wheels; according to the technical scheme, the coiled tubing is driven to go into the well through extrusion, and the coiled tubing is abraded.
To sum up, present coiled tubing pours into head rest motor direct drive into, continuously pours into coiled tubing downwards into through both sides centre gripping belt, and it is little not only to have drive strength of going into the well, and equipment is heavier to need the hoist and mount to the great problem of coiled tubing wearing and tearing, but also has operation safety risk, and the installation, dismantle operation work load scheduling problem greatly.
Therefore, it is necessary to develop a new type of tubing continuous injection device with sufficient power and less wear to the tubing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a stepping type oil pipe continuous injection device aiming at the defects in the prior art.
The technical scheme of the utility model is as follows: a stepping oil pipe continuous injection device comprises a box body, wherein the centers of a top plate and a bottom plate of the box body are symmetrically provided with an inlet hole and an outlet hole which are matched with an oil pipe; the device comprises a box body, a first clamping mechanism, a second clamping mechanism, a first expansion piece and a second expansion piece, wherein the box body is internally provided with a plurality of holes, the first clamping mechanism and the second clamping mechanism are vertically arranged in the box body in a sliding mode and are arranged oppositely, and clamping ends of the first clamping mechanism and the second clamping mechanism are coaxially arranged with the inlet holes and the outlet holes; the first expansion piece and the second expansion piece are vertically and fixedly installed in the box body, and the expansion ends of the first expansion piece and the second expansion piece are fixedly connected with the first clamping mechanism and the second clamping mechanism respectively.
Preferably, the fixed end of the first expansion piece is fixedly installed on the top plate of the box body, and the fixed end of the second expansion piece is fixedly installed on the bottom plate of the box body.
Preferably, the first clamping mechanism comprises a C-shaped frame body and a clamping oil cylinder, an opening of the frame body faces the oil pipe, and L-shaped clamping frames are respectively installed on two sides of the opening in a sliding mode; the two clamping frames are oppositely arranged, and arc-shaped clamping plates bent inwards are arranged on the inner sides of the two clamping frames far away from one end of the frame body; the support body is internally provided with a cross rod, the cross rod is symmetrically sleeved with two sliding sleeves in a sliding mode, the sliding sleeves are hinged to the end portion of the support body on the same side and the clamping frame through connecting rods respectively, the clamping oil cylinder is fixedly installed at the center of the outer side of the support body, and the telescopic end of the clamping oil cylinder penetrates through the middle of the support body and the cross rod and is fixedly connected with the middle of the support body and the cross rod.
Preferably, the frame body is in sliding fit with vertical sliding grooves formed in two sides in the box body through sliding blocks arranged at two ends of the frame body, a connecting plate is arranged at the top of the frame body, and the telescopic end of the first telescopic device is fixedly connected with the middle of the connecting plate.
Preferably, the second clamping mechanism has the same structure as the first clamping mechanism.
Preferably, the inner side of the clamping plate is provided with an anti-skid rubber mat.
Preferably, the first expansion piece and the second expansion piece are both telescopic oil cylinders.
Preferably, a plurality of rollers are uniformly arranged on the inner walls of the inlet hole and the outlet hole along the circumferential direction.
Compared with the prior art, the utility model has the following advantages:
(1) the device is driven by the oil cylinder, and the oil pipe is injected step by step, so that the power is sufficient and stable, and the oil pipe is injected more smoothly;
(2) the device has the advantages of simple structure, convenient operation, strong safety, low failure rate and high working efficiency;
(3) the device avoids the injection mode of continuously extruding the oil pipe, and greatly reduces the abrasion degree of the oil pipe to a great extent.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a perspective view of the first clamping mechanism;
fig. 4 is a perspective view of the first clamping mechanism.
In the figure: 1. the box, 101, manhole, 102, exit hole, 103, spout, 2, first fixture, 3, second fixture, 4, first expansion bend, 5, second expansion bend, 6, support body, 601, slider, 7, centre gripping hydro-cylinder, 8, centre gripping frame, 9, splint, 10, horizontal pole, 11, sliding sleeve, 12, connecting rod, 13, connecting plate, 14, gyro wheel.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples.
Example one
Referring to fig. 1-2, a stepping oil pipe continuous injection device comprises a box body 1, wherein an inlet hole 101 and an outlet hole 102 matched with an oil pipe are symmetrically formed in the centers of a top plate and a bottom plate of the box body 1; the clamping device comprises a box body 1, a first clamping mechanism 2, a second clamping mechanism 3, a first expansion piece 4 and a second expansion piece 5, wherein the first clamping mechanism 2 and the second clamping mechanism 3 are vertically arranged in the box body 1 in a sliding mode and are arranged oppositely, and clamping ends of the first clamping mechanism 2 and the second clamping mechanism 3 are coaxially arranged with an inlet hole 101 and an outlet hole 102; the first expansion piece 4 and the second expansion piece 5 are vertically and fixedly arranged on a bottom plate of the box body 1, and the expansion ends of the first expansion piece and the second expansion piece are respectively and fixedly connected with the first clamping mechanism 2 and the second clamping mechanism 3; the heights of the first clamping mechanism 2 and the second clamping mechanism 3 are changed alternately through a first expansion piece 4 and a second expansion piece 5 respectively, and only the first clamping mechanism 2 or the second clamping mechanism 3 moving from high to low clamps the oil pipe.
Referring to fig. 3-4, the first clamping mechanism 2 comprises a C-shaped frame body 6 and a clamping cylinder 7, an opening of the frame body 6 faces the oil pipe, and two sides of the opening are respectively provided with an L-shaped clamping frame 8 in a sliding manner; the two clamping frames 8 are oppositely arranged, and arc-shaped clamping plates 9 bent inwards are arranged on the inner sides of the two clamping frames far away from one end of the frame body 6; be equipped with horizontal pole 10 in the support body 6, the symmetry slip cover is equipped with two sliding sleeves 11 on the horizontal pole 10, and sliding sleeve 11 passes through connecting rod 12 with the tip and the holding frame 8 of homonymy support body 6 respectively and articulates, and centre gripping hydro-cylinder 7 fixed mounting is in the center department in the 6 outsides of support body, and its flexible end runs through the middle part fixed connection of support body 6 and horizontal pole 10.
In addition, the slider 601 that support body 6 was equipped with through its both ends and the vertical spout 103 sliding fit that both sides were equipped with in the box 1, the top of support body 6 is equipped with connecting plate 13, the flexible end of first expansion bend 4 and the middle part fixed connection of connecting plate 13.
In more detail, the second clamping mechanism 3 has the same structure as the first clamping mechanism 2.
In actual use: firstly, inserting the starting end of an oil pipe from an inlet hole 101 at the top of a box body 1 to a position below an outlet hole 102, wherein clamping plates 9 on a first clamping mechanism 2 and a second clamping mechanism 3 are both in an open state; firstly, starting a second clamping mechanism 3 to clamp an oil pipe from the upper part in a box body 1, then retracting a second expansion piece 5 to drive the second clamping mechanism 3 and the oil pipe downwards, simultaneously driving a first clamping structure to move upwards under the driving of extending a first expansion piece 4, enabling a clamping plate 9 of the second clamping mechanism 3 to pass through a clamping plate 9 of a first clamping mechanism 2, after the second clamping mechanism 3 clamps the oil pipe to the lower part in the box body 1, lifting the first clamping mechanism 2 to the upper part in the box body 1 and clamping the oil pipe again, and simultaneously opening the second clamping mechanism 3 so as to circularly inject the oil pipe downwards; wherein fixture's working process: the clamping oil cylinder 7 pushes the cross rod 10, the two sliding sleeves 11 move relatively under the action of the connecting rods 12 hinged with the sliding sleeves, and meanwhile, the two clamping frames 8 are pushed to move relatively until the oil pipe is clamped firmly by the clamping plates 9; when the clamping state is released, the clamping oil cylinder 7 retracts and pulls back the cross rod 10, the two sliding sleeves 11 move in the reverse direction under the action of the connecting rods 12 hinged with the sliding sleeves and drive the two clamping frames 8 to move in the reverse direction, and the clamping plates 9 are separated from the oil pipe.
The device adopts a stepping type injection oil pipe, the power is sufficient and stable, and the injection of the oil pipe is smoother; the device avoids the injection mode of continuously extruding the oil pipe, and greatly reduces the abrasion degree of the oil pipe; the device has the advantages of simple structure, convenient operation, strong safety, low failure rate and high working efficiency.
Example two
Referring to fig. 1-2, a stepping oil pipe continuous injection device comprises a box body 1, wherein an inlet hole 101 and an outlet hole 102 matched with an oil pipe are symmetrically formed in the centers of a top plate and a bottom plate of the box body 1; the clamping device comprises a box body 1, a first clamping mechanism 2, a second clamping mechanism 3, a first expansion piece 4 and a second expansion piece 5, wherein the first clamping mechanism 2 and the second clamping mechanism 3 are vertically arranged in the box body 1 in a sliding mode and are arranged oppositely, and clamping ends of the first clamping mechanism 2 and the second clamping mechanism 3 are coaxially arranged with an inlet hole 101 and an outlet hole 102; the first expansion piece 4 and the second expansion piece 5 are vertically and fixedly arranged in the box body 1, and the expansion ends of the first expansion piece and the second expansion piece are respectively and fixedly connected with the first clamping mechanism 2 and the second clamping mechanism 3; the heights of the first clamping mechanism 2 and the second clamping mechanism 3 are changed alternately through a first expansion piece 4 and a second expansion piece 5 respectively, and only the first clamping mechanism 2 or the second clamping mechanism 3 moving from high to low clamps the oil pipe.
Referring to fig. 3-4, the first clamping mechanism 2 comprises a C-shaped frame body 6 and a clamping cylinder 7, an opening of the frame body 6 faces the oil pipe, and two sides of the opening are respectively provided with an L-shaped clamping frame 8 in a sliding manner; the two clamping frames 8 are oppositely arranged, and arc-shaped clamping plates 9 bent inwards are arranged on the inner sides of the two clamping frames far away from one end of the frame body 6; be equipped with horizontal pole 10 in the support body 6, the symmetry slip cover is equipped with two sliding sleeves 11 on the horizontal pole 10, and sliding sleeve 11 passes through connecting rod 12 with the tip and the holding frame 8 of homonymy support body 6 respectively and articulates, and centre gripping hydro-cylinder 7 fixed mounting is in the center department in the 6 outsides of support body, and its flexible end runs through the middle part fixed connection of support body 6 and horizontal pole 10.
In addition, the slider 601 that support body 6 was equipped with through its both ends and the vertical spout 103 sliding fit that both sides were equipped with in the box 1, the top of support body 6 is equipped with connecting plate 13, the flexible end of first expansion bend 4 and the middle part fixed connection of connecting plate 13.
In more detail, the second clamping mechanism 3 has the same structure as the first clamping mechanism 2.
In addition, the difference between the present embodiment and the first embodiment is that the installation positions of the first expansion piece 4 and the second expansion piece 5 are specifically:
referring to fig. 1, in the present embodiment, the fixed end of the first telescopic device 4 is fixedly installed on the top plate of the cabinet 1, and the fixed end of the second telescopic device 5 is fixedly installed on the bottom plate of the cabinet 1.
During the use, at first start second fixture 3 and press from both sides tight oil pipe from box 1 interior top, then the second expansion bend 5 is retracted and is driven second fixture 3 and oil pipe downwards, first expansion bend 4 is retracted simultaneously and is driven first clamping structure rebound, splint 9 of second fixture 3 passes through between splint 9 of first fixture 2, after second fixture 3 centre gripping oil pipe to box 1 inside below, first fixture 2 rises to box 1 interior top and grasps oil pipe once more, second fixture 3 opens simultaneously to this circulation injects into oil pipe downwards.
EXAMPLE III
Referring to fig. 1-2, a stepping oil pipe continuous injection device comprises a box body 1, wherein an inlet hole 101 and an outlet hole 102 matched with an oil pipe are symmetrically formed in the centers of a top plate and a bottom plate of the box body 1; the clamping device comprises a box body 1, a first clamping mechanism 2, a second clamping mechanism 3, a first expansion piece 4 and a second expansion piece 5, wherein the first clamping mechanism 2 and the second clamping mechanism 3 are vertically arranged in the box body 1 in a sliding mode and are arranged oppositely, and clamping ends of the first clamping mechanism 2 and the second clamping mechanism 3 are coaxially arranged with an inlet hole 101 and an outlet hole 102; the first expansion piece 4 and the second expansion piece 5 are both vertically and fixedly arranged in the box body 1, wherein the fixed end of the first expansion piece 4 is fixedly arranged on the top plate of the box body 1, the fixed end of the second expansion piece 5 is fixedly arranged on the bottom plate of the box body 1, and the expansion ends of the first expansion piece 4 and the second expansion piece are respectively and fixedly connected with the first clamping mechanism 2 and the second clamping mechanism 3; the heights of the first clamping mechanism 2 and the second clamping mechanism 3 are changed alternately through a first expansion piece 4 and a second expansion piece 5 respectively, and only the first clamping mechanism 2 or the second clamping mechanism 3 moving from high to low clamps the oil pipe.
Referring to fig. 3-4, the first clamping mechanism 2 comprises a C-shaped frame body 6 and a clamping cylinder 7, an opening of the frame body 6 faces the oil pipe, and two sides of the opening are respectively provided with an L-shaped clamping frame 8 in a sliding manner; the two clamping frames 8 are oppositely arranged, and arc-shaped clamping plates 9 bent inwards are arranged on the inner sides of the two clamping frames far away from one end of the frame body 6; be equipped with horizontal pole 10 in the support body 6, the symmetry slip cover is equipped with two sliding sleeves 11 on the horizontal pole 10, and sliding sleeve 11 passes through connecting rod 12 with the tip and the holding frame 8 of homonymy support body 6 respectively and articulates, and centre gripping hydro-cylinder 7 fixed mounting is in the center department in the 6 outsides of support body, and its flexible end runs through the middle part fixed connection of support body 6 and horizontal pole 10.
The frame body 6 is in sliding fit with the vertical sliding grooves 103 arranged at two sides in the box body 1 through the sliding blocks 601 arranged at two ends of the frame body, the connecting plate 13 is arranged at the top of the frame body 6, and the telescopic end of the first telescopic device 4 is fixedly connected with the middle part of the connecting plate 13; in more detail, the second clamping mechanism 3 has the same structure as the first clamping mechanism 2.
In addition, in this embodiment, the optimized setting is performed on the clamping plates 9 of the first clamping mechanism 2 and the second clamping mechanism 3 on the basis of the second embodiment, specifically:
in this embodiment, the inner sides of the clamping plates 9 of the first clamping mechanism 2 and the second clamping mechanism 3 are both provided with anti-slip rubber pads, which can increase the friction between the clamping plates and the oil pipe, and prevent the clamping plates 9 and the oil pipe from sliding relatively when a user places a bet.
Example four
Referring to fig. 1-2, a stepping oil pipe continuous injection device comprises a box body 1, wherein an inlet hole 101 and an outlet hole 102 matched with an oil pipe are symmetrically formed in the centers of a top plate and a bottom plate of the box body 1; the clamping device comprises a box body 1, a first clamping mechanism 2, a second clamping mechanism 3, a first expansion piece 4 and a second expansion piece 5, wherein the first clamping mechanism 2 and the second clamping mechanism 3 are vertically arranged in the box body 1 in a sliding mode and are arranged oppositely, and clamping ends of the first clamping mechanism 2 and the second clamping mechanism 3 are coaxially arranged with an inlet hole 101 and an outlet hole 102; the first expansion piece 4 and the second expansion piece 5 are both vertically and fixedly arranged in the box body 1, wherein the fixed end of the first expansion piece 4 is fixedly arranged on the top plate of the box body 1, the fixed end of the second expansion piece 5 is fixedly arranged on the bottom plate of the box body 1, and the expansion ends of the first expansion piece 4 and the second expansion piece are respectively and fixedly connected with the first clamping mechanism 2 and the second clamping mechanism 3; the heights of the first clamping mechanism 2 and the second clamping mechanism 3 are changed alternately through a first expansion piece 4 and a second expansion piece 5 respectively, and only the first clamping mechanism 2 or the second clamping mechanism 3 moving from high to low clamps the oil pipe.
Referring to fig. 3-4, the first clamping mechanism 2 comprises a C-shaped frame body 6 and a clamping cylinder 7, an opening of the frame body 6 faces the oil pipe, and two sides of the opening are respectively provided with an L-shaped clamping frame 8 in a sliding manner; the two clamping frames 8 are oppositely arranged, and arc-shaped clamping plates 9 bent inwards are arranged on the inner sides of the two clamping frames far away from one end of the frame body 6; be equipped with horizontal pole 10 in the support body 6, the symmetry slip cover is equipped with two sliding sleeves 11 on the horizontal pole 10, and sliding sleeve 11 passes through connecting rod 12 with the tip and the holding frame 8 of homonymy support body 6 respectively and articulates, and centre gripping hydro-cylinder 7 fixed mounting is in the center department in the 6 outsides of support body, and its flexible end runs through the middle part fixed connection of support body 6 and horizontal pole 10.
The frame body 6 is in sliding fit with the vertical sliding grooves 103 arranged at two sides in the box body 1 through the sliding blocks 601 arranged at two ends of the frame body, the connecting plate 13 is arranged at the top of the frame body 6, and the telescopic end of the first telescopic device 4 is fixedly connected with the middle part of the connecting plate 13; in more detail, the second clamping mechanism 3 has the same structure as the first clamping mechanism 2.
In addition, in this embodiment, the types of the first expansion piece 4 and the second expansion piece 5 are defined on the basis of the second embodiment, and specifically, the following are provided:
in this embodiment, the first expansion piece 4 and the second expansion piece 5 are both expansion cylinders; the device is driven by the oil cylinder, and the stepping type oil injection pipe has sufficient and stable power, so that the oil injection pipe is smoother.
EXAMPLE five
As a preferred embodiment of the present invention, the present embodiment optimizes the inlet hole 101 and the outlet hole 102 of the box body 1 on the basis of the fourth embodiment, specifically:
referring to fig. 2, in the present embodiment, a plurality of rollers 14 are uniformly arranged on the inner walls of the inlet hole 101 and the outlet hole 102 of the box 1 along the circumferential direction, and the rollers 14 convert the sliding contact between the oil pipe and the inlet hole 101 and the outlet hole 102 into rolling contact, thereby effectively reducing the abrasion of the box 1 on the coiled oil pipe.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.
Claims (8)
1. The utility model provides a marching type oil pipe continuous injection device, includes the box, the central point department symmetry of box roof and bottom plate offer with the inlet hole and the exit hole of oil pipe adaptation, its characterized in that: the device comprises a box body, a first clamping mechanism, a second clamping mechanism, a first expansion piece and a second expansion piece, wherein the box body is internally provided with a plurality of holes, the first clamping mechanism and the second clamping mechanism are vertically arranged in the box body in a sliding mode and are arranged oppositely, and clamping ends of the first clamping mechanism and the second clamping mechanism are coaxially arranged with the inlet holes and the outlet holes; the first expansion piece and the second expansion piece are vertically and fixedly installed in the box body, and the expansion ends of the first expansion piece and the second expansion piece are fixedly connected with the first clamping mechanism and the second clamping mechanism respectively.
2. The coiled tubing injector of claim 1, wherein: the fixed end of the first expansion piece is fixedly installed on the top plate of the box body, and the fixed end of the second expansion piece is fixedly installed on the bottom plate of the box body.
3. The progressive tubing coiled injection apparatus of claim 1, wherein: the first clamping mechanism comprises a C-shaped frame body and a clamping oil cylinder, the opening of the frame body faces the oil pipe, and L-shaped clamping frames are respectively installed on two sides of the opening in a sliding mode; the two clamping frames are oppositely arranged, and arc-shaped clamping plates bent inwards are arranged on the inner sides of the two clamping frames far away from one end of the frame body; the support body is internally provided with a cross rod, the cross rod is symmetrically sleeved with two sliding sleeves in a sliding mode, the sliding sleeves are hinged to the end portion of the support body on the same side and the clamping frame through connecting rods respectively, the clamping oil cylinder is fixedly installed at the center of the outer side of the support body, and the telescopic end of the clamping oil cylinder penetrates through the middle of the support body and the cross rod and is fixedly connected with the middle of the support body and the cross rod.
4. The coiled tubing injector of claim 3, wherein: the support body is in sliding fit with vertical sliding grooves formed in the two sides in the box body through sliding blocks arranged at the two ends of the support body, a connecting plate is arranged at the top of the support body, and the telescopic end of the first telescopic device is fixedly connected with the middle of the connecting plate.
5. The coiled tubing injector of claim 4, wherein: the second clamping mechanism and the first clamping mechanism are identical in structure.
6. The coiled tubing injector of claim 5, wherein: the inner side of the clamping plate is provided with an anti-skid rubber mat.
7. The coiled tubing injector of claim 1, wherein: the first expansion piece and the second expansion piece are both expansion oil cylinders.
8. The coiled tubing injector of claim 1, wherein: and a plurality of rollers are uniformly arranged on the inner walls of the inlet hole and the outlet hole along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122810595.5U CN216741402U (en) | 2021-11-17 | 2021-11-17 | Stepping type oil pipe continuous injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122810595.5U CN216741402U (en) | 2021-11-17 | 2021-11-17 | Stepping type oil pipe continuous injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216741402U true CN216741402U (en) | 2022-06-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122810595.5U Active CN216741402U (en) | 2021-11-17 | 2021-11-17 | Stepping type oil pipe continuous injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216741402U (en) |
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2021
- 2021-11-17 CN CN202122810595.5U patent/CN216741402U/en active Active
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