CN219987502U - Valve seat extractor - Google Patents
Valve seat extractor Download PDFInfo
- Publication number
- CN219987502U CN219987502U CN202320926478.1U CN202320926478U CN219987502U CN 219987502 U CN219987502 U CN 219987502U CN 202320926478 U CN202320926478 U CN 202320926478U CN 219987502 U CN219987502 U CN 219987502U
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- China
- Prior art keywords
- screw rod
- pull rod
- valve seat
- claw
- rod pull
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- 210000000078 claw Anatomy 0.000 claims abstract description 51
- 230000008961 swelling Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model belongs to the technical field of auxiliary tools of oilfield exploitation equipment, and particularly relates to a valve seat extractor, which comprises a screw rod pull rod, a claw, an elastic piece and a driving device; at least two mounting grooves are formed in the outer side wall of the screw rod pull rod, and perforations are formed in the bottoms of the mounting grooves; a through hole communicated with the perforation is formed in the screw rod pull rod, a guy rope is arranged in the through hole, and the movable end of the guy rope penetrates out of the lifting end of the screw rod pull rod; one end of the claw, which is far away from the lifting end of the screw rod pull rod, is hinged in the mounting groove, and the fixed end of the inhaul cable is connected with the claw; the elastic piece is arranged between the mounting groove and the clamping jaw; the driving device is arranged on the screw rod pull rod. The valve seat extractor has a simple integral structure, the valve seat can be easily extracted from the pump body under the cooperation of the clamping jaw and the driving device, and the clamping jaw can be contracted into the mounting groove by pulling the inhaul cable, so that the extracted valve seat can be quickly separated from the lead screw pull rod, and the replacement efficiency of the valve seat is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of auxiliary tools of oilfield exploitation equipment, and particularly relates to a valve seat extractor.
Background
The valve body and the valve seat are used as key components in a fluid medium suction and discharge channel, and in the process of continuously sucking and discharging the fluid medium, the valve body assembly provided with the valve rubber is continuously collided with the valve seat at a high speed, so that the service lives of the valve body and the valve seat are very short, the valve body and the valve seat are easy to consume in the pump, and the valve body and the valve seat need to be replaced frequently; the valve body is easy to take out, and the valve seat is tightly connected with the valve box of the hydraulic end of the pump after being pumped by high pressure, so that the valve seat is not easy to take out, and a special valve seat extractor is needed to take out and replace the valve seat.
The Chinese patent with the patent number of 202121550442.5 and the name of valve seat drawing tool comprises a supporting mechanism and a swelling and pulling mechanism connected to the middle of the supporting mechanism, wherein the swelling and pulling mechanism is used for swelling the inner wall of the valve seat and pulling out the valve seat.
Foretell disk seat drawing tool can be light take out the disk seat by the pump body in, however, disk seat drawing tool's overall structure is complicated, and the operation is comparatively loaded down with trivial details, and after taking out the disk seat, only need take longer time to take off the disk seat by disk seat drawing tool, leads to the replacement efficiency of disk seat to reduce. Therefore, the utility model provides a extractor capable of rapidly extracting a valve seat, which is a technical problem to be solved urgently by a person skilled in the art.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a valve seat extractor, which aims to solve the technical problems that the whole structure of a valve seat drawing tool in the prior art is complex, and the extracted valve seat is difficult to be taken down from the valve seat drawing tool, so that the replacement efficiency of the valve seat is reduced.
The utility model is realized by the following technical scheme:
a valve seat extractor comprises a screw rod pull rod, a claw, an elastic piece and a driving device;
the outer side wall of the screw rod pull rod is provided with at least two mounting grooves, all the mounting grooves are arranged around the circumference of the screw rod pull rod, the mounting grooves are arranged close to the locking end of the screw rod pull rod, and the bottoms of the mounting grooves are provided with perforations; the outer side wall of the screw rod pull rod is provided with an external thread, and the screw rod pull rod is sleeved with a locking nut; the inside of the screw rod pull rod is provided with a through hole, one end of the through hole penetrates through the lifting end of the screw rod pull rod to be communicated with the outside, the other end of the through hole is communicated with the through hole, a inhaul cable is arranged in the through hole, and the movable end of the inhaul cable penetrates out of the lifting end of the screw rod pull rod;
the number of the clamping claws is equal to that of the mounting grooves, all the clamping claws are arranged in the mounting grooves in a one-to-one correspondence manner, one ends of the clamping claws, which are far away from the lifting ends of the screw rod pull rods, are hinged in the mounting grooves, the rotation angle of the clamping claws is 0-45 degrees, the fixed ends of the inhaul cables are connected with one sides of the clamping claws, which face the mounting grooves, and the fixed ends of the inhaul cables are close to the movable ends of the clamping claws;
the elastic piece is arranged in the mounting groove, and two ends of the elastic piece are respectively abutted against the bottom of the mounting groove and one side of the claw facing the mounting groove, so that the movable end of the claw moves in a direction away from the mounting groove;
the action end of the driving device is arranged on one surface of the lock nut, which faces the clamping jaw.
In order to better realize the utility model, the structure is further optimized, a fixing groove A is arranged in the mounting groove, a fixing groove B is arranged on the side wall of the clamping jaw, and two ends of the elastic piece are respectively clamped in the fixing groove A and the fixing groove B.
In order to better realize the utility model, in the structure, a protruding part A is arranged in the fixing groove A, a protruding part B is arranged in the fixing groove B, the elastic piece is a spiral spring, and two ends of the elastic piece are respectively sleeved on the protruding part A and the protruding part B.
In order to better realize the utility model, the structure is further optimized, and the connection part of the through hole and the perforation is provided with a chamfer.
In order to better realize the utility model, the structure is further optimized, the number of the mounting grooves is three, and the three mounting grooves are arranged at equal intervals around the circumference of the screw rod pull rod.
In order to better realize the utility model, the structure is further optimized, and the movable end of the inhaul cable is fixedly arranged at the lifting end of the screw rod pull rod.
In summary, the utility model has the following technical effects:
the valve seat extractor has a simple integral structure, when the valve seat extractor is used, only the locking end of the screw rod pull rod is required to be inserted into the valve seat to be disassembled, so that the movable end of the claw moves to the bottom of the valve seat, and the movable end of the claw moves away from the axis direction of the screw rod pull rod under the action of the elastic piece, so that the movable end of the claw can be clamped at the bottom of the valve seat, and an operator can push the screw rod pull rod away from the pump body by using the driving device, so that the valve seat is conveniently and easily taken out of the pump body; after the valve seat is taken out, an operator can shrink the movable end of the claw into the mounting groove by only pulling the inhaul cable, and the valve seat can be pulled out of the valve seat remover, so that the replacement efficiency of the valve seat is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a valve seat extractor according to the present utility model;
FIG. 2 is a cross-sectional view of a valve seat remover of the present utility model;
fig. 3 is a partial enlarged view of a portion a in fig. 2;
FIG. 4 is a schematic view of a valve seat extractor of the present utility model in use;
fig. 5 is a cross-sectional view of a valve seat remover of the present utility model in use.
Reference numerals:
1. a screw rod pull rod; 11. a mounting groove; 111. perforating; 112. a fixing groove A; 113. a boss A; 12. a lock nut; 13. a through hole; 131. a guy cable;
2. a claw; 21. a fixing groove B; 22. a boss B;
3. an elastic member;
4. a driving device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 5:
a valve seat extractor comprises a screw rod pull rod 1, a claw 2, an elastic piece 3 and a driving device 4; wherein,
the outer side wall of the screw rod pull rod 1 is provided with at least two mounting grooves 11, all the mounting grooves 11 are arranged at the same height position of the screw rod pull rod 1, all the mounting grooves 11 are arranged around the circumference of the screw rod pull rod 1, the mounting grooves 11 are arranged close to the locking end of the screw rod pull rod 1, and the bottoms of the mounting grooves 11 are provided with perforations 111;
the outer side wall of the screw rod pull rod 1 is provided with external threads, and the lock nut 12 is sleeved on the screw rod pull rod 1 through matching with the external threads;
a through hole 13 is formed in the screw rod pull rod 1, one end of the through hole 13 penetrates through the lifting end of the screw rod pull rod 1 to be communicated with the outside, the other end of the through hole 13 is communicated with the through hole 111, a stay cable 131 is arranged in the through hole 13, and the movable end of the stay cable 131 penetrates out of the lifting end of the screw rod pull rod 1;
the number of the clamping claws 2 is equal to that of the mounting grooves 11, all the clamping claws 2 are arranged in the plurality of mounting grooves 11 in a one-to-one correspondence manner, one end of each clamping claw 2, far away from the lifting end of the screw rod pull rod 1, is hinged in each mounting groove 11, the rotation angle of each clamping claw 2 is 0-45 degrees, the fixed end of each stay cable 131 is connected with one side, facing the mounting groove 11, of each clamping claw 2, and the fixed end of each stay cable 131 is arranged close to the movable end of each clamping claw 2;
the elastic piece 3 is arranged in the mounting groove 11, and two ends of the elastic piece 3 are respectively abutted against the bottom of the mounting groove 11 and one side of the claw 2 facing the mounting groove 11, so that the movable end of the claw 2 moves in a direction away from the mounting groove 11;
the actuating end of the drive 4 is arranged on the side of the lock nut 12 facing the claw 2.
The valve seat extractor has a simple integral structure and is convenient to operate, and the extraction efficiency of the valve seat can be effectively improved, so that the replacement efficiency of the valve seat is improved.
When the screw rod pull rod is particularly used, an operator can insert the locking end of the screw rod pull rod 1 into the pump body and enable the locking end of the screw rod pull rod 1 to pass through a valve seat to be detached; when the clamping claw 2 passes through the valve seat, the outer side wall (the side away from the mounting groove 11) of the clamping claw 2 is extruded by the inner side wall of the valve seat, so that the clamping claw 2 moves into the mounting groove 11 and completely submerges in the mounting groove 11, and the locking end of the screw rod pull rod 1 and the clamping claw 2 can smoothly pass through the valve seat;
when the claw 2 completely passes through the valve seat, the extrusion force of the valve seat to the claw 2 is eliminated, the restoring force of the elastic piece 3 can push the movable end of the claw 2 to a direction away from the axis of the screw rod pull rod 1, and at the moment, an operator can pull the screw rod pull rod 1 to a direction away from the pump body, so that the movable end of the claw 2 is propped against the bottom of the valve seat;
subsequently, an operator can screw the lock nut 12 to ensure that the position of the screw rod pull rod 1 is not changed any more, then the driving device 4 is started, and the screw rod pull rod 1 is pushed to a direction away from the pump body through the driving device 4 so as to take out the valve seat from the pump body by using the clamping claw 2;
after the valve seat is taken out, an operator only needs to pull the movable end of the inhaul cable 131, the movable end of the clamping jaw 2 can be contracted into the mounting groove 11 under the drive of the inhaul cable 131, and the detached valve seat can be separated from the valve seat remover, so that the replacement efficiency of the valve seat is effectively improved.
The rotation angle of the claw 2 is not limited to 0 ° to 45 °, but may be set to 0 ° to 15 °, 0 ° to 30 °, or other angle ranges, and may be specifically selected according to the use requirement.
Preferably, the number of the mounting grooves 11 is three, the three mounting grooves 11 are arranged at equal intervals around the circumference of the screw rod pull rod 1, and the claws 2 are arranged in the three mounting grooves 11;
when the valve seat is disassembled, the three clamping claws 2 can provide enough stable support for the valve seat, so that the valve seat extractor can more easily extract the valve seat from the pump body.
It should be noted that the number of the mounting grooves 11 is not limited to three, and the number of the mounting grooves 11 may be two, four, five or more, and specifically may be selected according to the production cost, the production difficulty or the stability of the structure of the valve seat remover.
Preferably, the driving device comprises a hydraulic pump, a hydraulic hose and a hydraulic disc; wherein,
the hydraulic disc is of an annular disc-shaped structure, the locking end of the screw rod pull rod 1 can penetrate through a through hole on the hydraulic disc and extend into the pump body, so that the hydraulic disc is positioned between the lock nut 12 and the pump body, and the hydraulic pump is communicated with the hydraulic disc through a hydraulic hose;
the hydraulic pump pumps hydraulic oil into the hydraulic disc, so that the thickness of the hydraulic disc is increased, the screw rod pull rod 1 is pushed in a direction away from the pump body, and the valve seat extractor can extract the valve seat in the pump body.
Optimally, the mounting groove 11 is internally provided with the fixing groove A112, the claw 2 is provided with the fixing groove B21 towards one side of the mounting groove 11, and two ends of the elastic piece 3 are respectively clamped in the fixing groove A112 and the fixing groove B21, so that the situation that the elastic piece 3 is separated from the mounting groove 11 and the claw 2 is avoided, and the structure of the valve seat extractor is more stable.
Preferably, the fixing groove a112 is provided with a protruding portion a113, the fixing groove B21 is provided with a protruding portion B22, the elastic member 3 is a coil spring, and two ends of the elastic member 3 are respectively sleeved on the protruding portion a113 and the protruding portion B22, so as to further avoid the situation that the elastic member 3 is separated from the mounting groove 11 and the claw 2.
Preferably, the connection between the through hole 13 and the through hole 111 is provided with a chamfer, so that the connection between the through hole 13 and the through hole 111 is smoother, and the operator can easily pull the pull cable 131.
Preferably, the movable end of the cable 131 is fixedly arranged at the lifting end of the screw rod pull rod 1, so as to prevent the movable end of the cable 131 from falling into the through hole 13.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. A valve seat extractor which is characterized in that: comprises a screw rod pull rod (1), a claw (2), an elastic piece (3) and a driving device (4);
the screw rod pull rod comprises a screw rod pull rod body and is characterized in that at least two mounting grooves (11) are formed in the outer side wall of the screw rod pull rod body (1), all the mounting grooves (11) are arranged around the circumferential direction of the screw rod pull rod body (1), the mounting grooves (11) are arranged close to the locking end of the screw rod pull rod body (1), and a through hole (111) is formed in the bottom of each mounting groove (11); an external thread is arranged on the outer side wall of the screw rod pull rod (1), and a lock nut (12) is sleeved on the screw rod pull rod (1); the inside of the screw rod pull rod (1) is provided with a through hole (13), one end of the through hole (13) penetrates through the lifting end of the screw rod pull rod (1) to be communicated with the outside, the other end of the through hole (13) is communicated with the through hole (111), a guy cable (131) is arranged in the through hole (13), and the movable end of the guy cable (131) penetrates out of the lifting end of the screw rod pull rod (1);
the number of the clamping claws (2) is equal to that of the mounting grooves (11), all the clamping claws (2) are arranged in the plurality of the mounting grooves (11) in a one-to-one correspondence mode, one end, away from the lifting end of the screw rod pull rod (1), of each clamping claw (2) is hinged in the corresponding mounting groove (11), the rotation angle of each clamping claw (2) is 0-45 degrees, the fixed end of each stay cable (131) is connected with one side, facing the corresponding clamping claw (2), of each mounting groove (11), and the fixed end of each stay cable (131) is close to the movable end of each clamping claw (2);
the elastic piece (3) is arranged in the mounting groove (11), and two ends of the elastic piece (3) are respectively abutted against the bottom of the mounting groove (11) and one side of the claw (2) facing the mounting groove (11), so that the movable end of the claw (2) moves in a direction away from the mounting groove (11);
the action end of the driving device (4) is arranged on one surface of the lock nut (12) facing the clamping jaw (2).
2. The valve seat remover as claimed in claim 1, wherein: a fixing groove A (112) is formed in the mounting groove (11), a fixing groove B (21) is formed in the side wall of the clamping jaw (2), and two ends of the elastic piece (3) are respectively clamped in the fixing groove A (112) and the fixing groove B (21).
3. The valve seat remover as claimed in claim 2, wherein: the fixing groove A (112) is internally provided with a protruding portion A (113), the fixing groove B (21) is provided with a protruding portion B (22), the elastic piece (3) is a spiral spring, and two ends of the elastic piece (3) are respectively sleeved on the protruding portion A (113) and the protruding portion B (22).
4. The valve seat remover as claimed in claim 1, wherein: the connection of the through hole (13) and the through hole (111) is provided with a chamfer.
5. The valve seat remover as claimed in claim 1, wherein: the number of the mounting grooves (11) is three, and the three mounting grooves (11) are arranged at equal intervals around the circumference of the screw rod pull rod (1).
6. The valve seat remover as claimed in claim 1, wherein: the movable end of the inhaul cable (131) is fixedly arranged at the lifting end of the screw rod pull rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320926478.1U CN219987502U (en) | 2023-04-21 | 2023-04-21 | Valve seat extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320926478.1U CN219987502U (en) | 2023-04-21 | 2023-04-21 | Valve seat extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219987502U true CN219987502U (en) | 2023-11-10 |
Family
ID=88620660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320926478.1U Active CN219987502U (en) | 2023-04-21 | 2023-04-21 | Valve seat extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219987502U (en) |
-
2023
- 2023-04-21 CN CN202320926478.1U patent/CN219987502U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |