CN219925922U - Valve seat extractor - Google Patents
Valve seat extractor Download PDFInfo
- Publication number
- CN219925922U CN219925922U CN202320913191.5U CN202320913191U CN219925922U CN 219925922 U CN219925922 U CN 219925922U CN 202320913191 U CN202320913191 U CN 202320913191U CN 219925922 U CN219925922 U CN 219925922U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- valve seat
- screw rod
- mounting groove
- claw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 210000000078 claw Anatomy 0.000 claims abstract description 57
- 238000009434 installation Methods 0.000 description 8
- 230000008961 swelling Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method 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
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Lift Valve (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, a driving device and a lifting device; the outer side wall of the screw rod pull rod is provided with a mounting groove; 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 lock nut; the fixed end of the claw is hinged in the mounting groove, the bottom of the mounting groove and the side wall of the claw are respectively provided with a magnetic piece A and a magnetic piece B, and the polarities of the opposite faces of the magnetic piece A and the magnetic piece B are the same; the action end of the driving device is arranged on one surface of the lock nut facing the claw, and the lifting device is detachably sleeved 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 lifting device can enable the clamping jaw to be contracted into the mounting groove, so that the extracted valve seat can be quickly separated from the screw rod 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 by 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, a driving device and a lifting 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 bottom of each mounting groove is provided with a magnetic piece A; 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 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 positions of the clamping claws, which correspond to the magnetic parts A, are provided with magnetic parts B, the polarities of the opposite surfaces of the magnetic parts A and the magnetic parts B are the same, and the rotation angle of the clamping claws is 0-45 degrees;
the action end of the driving device is arranged on one surface of the lock nut, which faces the clamping jaw;
the lifting device is detachably arranged on the screw rod pull rod and used for extruding the clamping jaw to enable the clamping jaw to move into the mounting groove.
In order to better realize the utility model, in the structure, a fixing groove A is formed in the mounting groove, the magnetic piece A is embedded in the fixing groove A, a fixing groove B is formed in the side wall of the clamping jaw, and the magnetic piece B is embedded in the fixing groove B.
In order to better realize the utility model, the structure is further optimized, the magnetic piece A is in interference fit with the fixing groove A, and the magnetic piece B is in interference fit with the fixing groove B.
In order to better realize the utility model, the structure is further optimized, a plurality of rocking bars are arranged on the outer side wall of the locking nut, and the rocking bars are arranged at equal intervals around the circumference of the locking nut.
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, in the structure, a hinge shaft is arranged in the mounting groove, the axis of the hinge shaft is perpendicular to the axis of the screw rod pull rod, and one end of the claw away from the lifting end of the screw rod pull rod is hinged in the mounting groove through the hinge shaft.
In order to better realize the utility model, in the structure, threaded holes are formed in two sides of the mounting groove, one end of each threaded hole, which is far away from the mounting groove, penetrates out of the outer side wall of the screw rod pull rod, the hinge shaft is a screw rod, and the connecting end of the hinge shaft penetrates into and penetrates through one threaded hole and penetrates through the mounting groove to be connected into the other threaded hole.
In order to better realize the utility model, the structure is further optimized, and a sinking groove which is convenient for placing the screwing end of the hinge shaft is arranged on the outer side wall of the screw rod pull rod corresponding to the threaded hole.
In order to better realize the utility model, the structure is further optimized, and the lifting device comprises a lifting rod and a locking ring; the inner diameter of the locking ring is matched with the diameter of the screw rod pull rod, and the fixed end of the lifting pull rod is fixedly arranged on the locking ring.
In summary, the utility model has the following technical effects:
the valve seat extractor is simple in 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, the movable end of the claw moves away from the axis direction of the screw rod pull rod under the action force of mutual repulsion of the magnetic piece A and the magnetic piece B, 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 utilizing the driving device, so that the valve seat can be easily taken out of the pump body; after the valve seat is taken out, an operator can install the lifting device on the screw rod pull rod, the claw is extruded into the installation groove by the lifting device, so that the claw moves into the installation groove, the limitation of the claw on the valve seat is canceled, the valve seat can penetrate through the claw and is separated from the locking end of the screw rod pull rod, and 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 schematic view of a valve seat extractor (without a pulling device) according to the present utility model
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a cross-sectional view of a valve seat remover of the present utility model;
fig. 5 is a partial enlarged view of the portion B in fig. 4;
FIG. 6 is a schematic view of a pulling device in a valve seat remover according to the present utility model;
FIG. 7 is a schematic view of the valve seat extractor of the present utility model in use;
fig. 8 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. a hinge shaft; 112. a fixing groove A; 113. a threaded hole; 12. a lock nut; 121. a rocker; 13. sinking grooves;
2. a claw; 21. a fixing groove B;
31. a magnetic member A; 32. a magnetic member B;
4. a driving device;
5. a lifting device; 51. a lifting rod; 52. a locking ring.
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 8:
a valve seat extractor comprises a screw rod pull rod 1, a claw 2, a driving device 4 and a lifting device 5; 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 bottom of each mounting groove 11 is provided with a magnetic part A31;
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;
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 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 the mounting groove 11, the rotation angle of each clamping claw 2 is 0-45 degrees, one side of each clamping claw 2, facing the bottom of the mounting groove 11, is provided with a magnetic part B32, the position of each magnetic part B32 corresponds to that of each magnetic part A31, the polarity of the opposite surfaces of each magnetic part A31 and each magnetic part B32 is the same, namely when the clamping claws 2 are not subjected to other external forces, the movable ends of the clamping claws 2 can move in the direction far away from the bottom of the mounting groove 11 under the action force of mutual repulsion of the magnetic parts A31 and B32;
the action end of the driving device 4 is arranged on one surface of the lock nut 12 facing the claw 2;
the lifting device 5 is detachably arranged on the screw rod pull rod 1 and used for extruding the clamping jaw 2 so that the clamping jaw 2 moves into the mounting groove 11.
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 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 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 pressure of the valve seat to the claw 2 is eliminated, the movable end of the claw 2 moves away from the axis of the screw rod pull rod 1 under the action force of mutual repulsion of the magnetic piece A31 and the magnetic piece B32, and at the moment, an operator can pull the screw rod pull rod 1 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 easily take out the valve seat from the pump body by using the clamping jaw 2;
after the valve seat is taken out, an operator can install the lifting device 5 at the locking end of the screw rod pull rod 1, the claw 2 is extruded into the installation groove 11 by using the lifting device 5, at the moment, the movable end of the claw 2 is contracted into the installation groove 11, the limitation of the claw 2 on the valve seat is canceled, and the removed valve seat can be rapidly separated from the locking end of the valve seat remover, so that the replacement efficiency of the valve seat is effectively improved.
It should be noted that 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;
the same polarity of the opposite surfaces of the magnetic element a31 and the magnetic element B32 refers to that the opposite surfaces of the magnetic element a31 and the magnetic element B32 are both "N" poles or are both "S" poles, so that when the claw 2 is not subjected to other external forces, the movable end of the claw 2 moves in a direction away from the bottom of the mounting groove 11 under the action force of mutual repulsion of the magnetic element a31 and the magnetic element B32.
Preferably, the lifting device 5 comprises a lifting rod 51 and a locking ring 52; wherein,,
the locking ring 52 is of a circular ring structure, the inner diameter of the locking ring 52 is matched with the diameter of the screw rod pull rod 1, and the fixed end of the lifting pull rod 51 is fixedly arranged on the locking ring 52;
when the lifting device 5 is used, an operator only needs to grasp the lifting rod 51, sleeve the locking ring 52 at the locking end of the screw rod pull rod 1, and then pull the lifting rod 51 to enable the locking ring 52 to move towards the direction approaching to the clamping jaw 2;
when the locking ring 52 moves to the position of the claw 2, the outer side wall of the claw 2 is extruded by the inner side wall of the locking ring 52, so that the movable end of the claw 2 moves into the mounting groove 11, the restriction of the movable end of the claw 2 on the valve seat is canceled, and the valve seat on the screw rod pull rod 1 can be rapidly separated from the locking end of the screw rod pull rod 1, so that the efficiency of taking out the valve seat is improved.
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, a hinge shaft 111 is disposed in the mounting groove 11, an axis of the hinge shaft 111 is perpendicular to an axis of the lead screw pull rod 1, and one end of the claw 2 away from a pulling end of the lead screw pull rod 1 is hinged in the mounting groove 11 through the hinge shaft 111.
Preferably, threaded holes 113 are formed on two sides of the installation groove 11, one end, far away from the installation groove 11, of each threaded hole 113 is penetrated out from the outer side wall of the screw rod pull rod 1, the hinge shaft 111 is a screw rod, and the connecting end of the hinge shaft 111 penetrates into and penetrates through the installation groove 11 from one of the threaded holes 113 to be connected to the other threaded hole 113;
when the clamping jaw 2 is installed, the clamping jaw 2 is only required to be installed in the installation groove 11, then the connecting end of the hinge shaft 111 penetrates through one of the threaded holes 113 and is connected in the other threaded hole 113 after penetrating through the clamping jaw 2, so that the clamping jaw 2 is more convenient to install;
and the connection of the hinge shaft 111 and the screw rod pull rod 1 is not influenced by the claw 2 in the rotating process, so that the structure of the valve seat extractor is more stable.
Optimally, the outer side wall of the screw rod pull rod 1 is provided with a sinking groove 13 corresponding to the position of the threaded hole 113;
when the hinge shaft 111 is mounted on the screw rod pull rod 1, the twisting end of the hinge shaft 111 is positioned inside the sinking groove 13, so that the outside of the screw rod pull rod 1 is smoother, and the valve seat extractor can easily pass through the valve seat.
Preferably, the driving device comprises a hydraulic pump, a hydraulic hose and a hydraulic disc; wherein,,
the hydraulic disc is of an annular structure, the locking end of the screw rod pull rod 1 can penetrate through a perforation 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.
Preferably, a fixing groove a112 is provided in the mounting groove 11, the magnetic member a31 is embedded in the fixing groove a112, a fixing groove B21 is provided on the side wall of the claw 2, and the magnetic member B32 is embedded in the fixing groove B21.
Preferably, the magnetic member a31 is in interference fit with the fixing groove a112, and the magnetic member B32 is in interference fit with the fixing groove B21, so as to avoid the magnetic member a31 from being separated from the fixing groove a112 or the magnetic member B32 from being separated from the fixing groove B21, thereby making the structure of the valve seat extractor more stable.
Optimally, the outer side wall of the lock nut 12 is provided with a plurality of rockers 121, one ends of the rockers 121 are fixedly connected with the outer side wall of the lock nut 12, the other ends of the rockers 121 extend towards the direction away from the lock nut 12, and the rockers 121 are arranged at equal intervals around the circumference of the lock nut 12 so that the lock nut 12 can be screwed more conveniently.
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 (9)
1. A valve seat extractor which is characterized in that: comprises a screw rod pull rod (1), a claw (2), a driving device (4) and a lifting device (5);
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 close to the locking end of the screw rod pull rod body (1), and a magnetic piece A (31) is arranged at 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 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 manner, one end, far 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), a magnetic part B (32) is arranged at the position, corresponding to the magnetic part A (31), of each clamping claw (2), the polarity of the opposite surfaces of the magnetic part A (31) and the magnetic part B (32) is the same, and the rotation angle of each clamping claw (2) is 0-45 degrees;
the action end of the driving device (4) is arranged on one surface of the lock nut (12) facing the clamping jaw (2);
the lifting device (5) is detachably arranged on the screw rod pull rod (1) and used for extruding the clamping jaw (2) to enable the clamping jaw (2) to move into the mounting groove (11).
2. The valve seat remover as claimed in claim 1, wherein: the mounting groove (11) is internally provided with a fixing groove A (112), the magnetic piece A (31) is embedded in the fixing groove A (112), the side wall of the clamping jaw (2) is provided with a fixing groove B (21), and the magnetic piece B (32) is embedded in the fixing groove B (21).
3. The valve seat remover as claimed in claim 2, wherein: the magnetic piece A (31) is in interference fit with the fixing groove A (112), and the magnetic piece B (32) is in interference fit with the fixing groove B (21).
4. The valve seat remover as claimed in claim 1, wherein: the outer side wall of the lock nut (12) is provided with a plurality of rockers (121), and the rockers (121) are arranged at equal intervals around the circumference of the lock nut (12).
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 according to any of claims 1-5, wherein: be provided with articulated shaft (111) in mounting groove (11), the axis of articulated shaft (111) with the axis of lead screw pull rod (1) is perpendicular, jack catch (2) are kept away from the one end of the pulling end of lead screw pull rod (1) is articulated through articulated shaft (111) in mounting groove (11).
7. The valve seat remover as claimed in claim 6, wherein: both sides of mounting groove (11) all are provided with screw hole (113), two screw hole (113) keep away from the one end of mounting groove (11) is by the lateral wall of lead screw pull rod (1) wears out, articulated shaft (111) are the screw rod, the link of articulated shaft (111) is penetrated and passed by one of them screw hole (113) mounting groove (11) is connected to another in screw hole (113).
8. The valve seat remover as claimed in claim 7, wherein: the outer side wall of the screw rod pull rod (1) is provided with a sinking groove (13) which is convenient for placing the screwing end of the hinge shaft (111) at the position corresponding to the threaded hole (113).
9. The valve seat remover as claimed in claim 1, wherein: the lifting device (5) comprises a lifting rod (51) and a locking ring (52); the inner diameter of the locking ring (52) is matched with the diameter of the screw rod pull rod (1), and the fixed end of the lifting pull rod (51) is fixedly arranged on the locking ring (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320913191.5U CN219925922U (en) | 2023-04-21 | 2023-04-21 | Valve seat extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320913191.5U CN219925922U (en) | 2023-04-21 | 2023-04-21 | Valve seat extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219925922U true CN219925922U (en) | 2023-10-31 |
Family
ID=88501361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320913191.5U Active CN219925922U (en) | 2023-04-21 | 2023-04-21 | Valve seat extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219925922U (en) |
-
2023
- 2023-04-21 CN CN202320913191.5U patent/CN219925922U/en active Active
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