CN219622870U - Joint assembly and oil pump - Google Patents
Joint assembly and oil pump Download PDFInfo
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- CN219622870U CN219622870U CN202320238345.5U CN202320238345U CN219622870U CN 219622870 U CN219622870 U CN 219622870U CN 202320238345 U CN202320238345 U CN 202320238345U CN 219622870 U CN219622870 U CN 219622870U
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Abstract
The utility model relates to the technical field of oil pump accessories, in particular to a joint assembly and an oil pump; the joint assembly comprises a pump lower body, a ball seat and a sealing ball, wherein an oil inlet cavity and a connecting channel are arranged in the pump lower body; the ball seat threaded connection is in connecting channel, the inside of ball seat is provided with the oil feed passageway, oil feed passageway and oil feed chamber intercommunication, sealed ball installs in the oil feed intracavity, joint Assembly installs in the oil-well pump through the upper end of pump lower part of the body, when the piston moves the direction of keeping away from the ball seat, the oil body can get into the oil feed chamber through the oil feed passageway in the pit, when the piston moves the direction of oil feed towards the ball seat, the oil body in the oil feed chamber will drive sealed ball and seal the oil feed passageway, the inner wall of oil feed passageway is close to the one end of oil feed chamber and is provided with the arc sealed face, the arc sealed face is realized sealing the oil feed passageway under the cooperation with sealed ball, can effectively prevent impurity such as silt of the oil body inside from mingling between sealed ball and ball seat, thereby promote the pumping efficiency of oil-well pump.
Description
Technical Field
The utility model relates to the technical field of oil pump accessories, in particular to a joint assembly and an oil pump.
Background
The oil pump is a special reciprocating pump, and power is transmitted from the ground to the underground through the sucker rod, so that the plunger of the sucker pump reciprocates up and down to lift the oil in the oil well to the ground along the oil pipe.
The oil pump oil pumping process is mainly through the joint component oil feed of oil pump, and joint component mainly includes pump lower part of body, ball seat and sealing ball, and the sealing ball sets up in the pump lower part of body, and the ball seat is connected in the pump lower part of body, and in the piston round trip application in the oil pump, the sealing ball opens or closes the ball seat under the drive of the oil body.
But because the inside part of mixing with some silt impurity of oil to often meet silt impurity and can press from both sides between sealing ball and ball seat in long-time work, cause ball seat and sealing ball to seal not tightly, lead to the oil-well pump pumping efficiency to reduce.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, provides a joint assembly and an oil pump, and solves the technical problem that sediment is easy to be mixed between a ball seat and a sealing ball of the oil pump in the prior art, so that the pumping efficiency of the oil pump is reduced.
In order to achieve the above technical object, the present utility model provides a joint assembly, including:
the pump comprises a pump lower body, wherein an oil inlet cavity and a connecting channel are arranged in the pump lower body;
the ball seat is in threaded connection with the connecting channel, an oil inlet channel is arranged in the ball seat, the oil inlet channel is communicated with the oil inlet cavity, and an arc-shaped sealing surface is arranged at one end, close to the oil inlet cavity, of the inner wall of the oil inlet channel;
the sealing ball is arranged in the oil inlet cavity, the diameter of the sealing ball is larger than the inner diameter of the oil inlet channel, and the sealing ball can be in sealing fit with the arc-shaped sealing surface under the action of oil pressure.
Optionally, the oil inlet cavity comprises an oil containing cavity and a connecting cavity, the connecting cavity is connected with the connecting channel and is communicated with the oil inlet channel, the oil containing cavity is communicated with the connecting cavity, the inner diameter of the connecting cavity is larger than the diameter of the sealing ball, and the inner diameter of the oil containing cavity is larger than the inner diameter of the connecting cavity.
Optionally, a guide surface is disposed on an end of the inner wall of the oil accommodating cavity, which is close to the connecting cavity, and the guide surface extends from the side wall of the oil accommodating cavity to the connecting cavity.
Optionally, the guide surface is an arc surface.
Optionally, the oil inlet cavity further comprises an anti-falling cavity, the anti-falling cavity is communicated with one end, away from the connecting cavity, of the oil containing cavity, and the inner diameter of the anti-falling cavity is smaller than that of the sealing ball.
Optionally, the anti-drop cavity comprises a plurality of sub-cavities arranged at intervals, and each sub-cavity is communicated with the oil containing cavity.
Optionally, the joint assembly further comprises a lower joint, a connecting port is further arranged in the lower pump body, the connecting port is connected to one end, far away from the oil inlet cavity, of the connecting channel, the lower joint is in threaded connection with the connecting port, an extension section is arranged at one end, close to the ball seat, of the lower joint, and an anti-blocking gap is formed between the extension section and the ball seat.
Optionally, the connector assembly further comprises a sealing ring, and the sealing ring is sleeved on the surface of the extension section and is in sealing fit with the side wall of the connecting port.
Optionally, a guiding conical surface is arranged at one end, close to the lower joint, of the side wall of the oil inlet channel, and the guiding conical surface extends to the anti-blocking gap.
Compared with the prior art, the joint assembly provided by the utility model has the beneficial effects that: by arranging the pump lower body, the ball seat and the sealing ball, an oil inlet cavity and a connecting channel are arranged in the pump lower body; the ball seat threaded connection is in connecting channel, the inside of ball seat is provided with the oil feed passageway, oil feed passageway and oil feed chamber intercommunication, sealed ball installs in the oil feed intracavity, joint Assembly installs in the oil-well pump through the upper end of pump lower part of the body, when the piston moves the direction of keeping away from the ball seat, the oil body can get into the oil feed chamber through the oil feed passageway in the pit, when the piston moves the direction of oil feed towards the ball seat, the oil body in the oil feed chamber will drive sealed ball and seal the oil feed passageway, because the inner wall of oil feed passageway is close to the one end of oil feed chamber is provided with the arc sealed face, the arc sealed face is realized sealing the oil feed passageway down with sealed ball, can also effectively prevent impurity such as the inside silt of oil body from being mingled with between sealed ball and ball seat, thereby promote the pumping efficiency of oil-well pump.
In order to achieve the technical purpose, the technical scheme of the utility model provides an oil pump, which comprises the joint assembly.
Compared with the prior art, the oil pump provided by the utility model has the beneficial effects that: the oil-well pump is through setting up the joint assembly, can effectively avoid impurity such as the inside silt of oil body to be mingled with between sealing ball and ball seat in the oil pumping process to promote the pumping efficiency of oil-well pump.
Drawings
Fig. 1 is a cross-sectional view of a joint assembly according to an embodiment of the present utility model.
Fig. 2 is a partial enlarged view at a in fig. 1.
Fig. 3 is a cross-sectional view taken along line A-A of fig. 1.
Fig. 4 is a half cross-sectional view of a pump lower body of a joint assembly provided in an embodiment of the present utility model.
Wherein, each reference sign in the figure:
10-pump lower body 11-oil inlet cavity 12-connecting channel
13-connection port 20-ball seat 21-oil inlet passage
30-sealing ball 40-lower connector 41-extension
42-anti-blocking gap 50-sealing ring 111-oil containing cavity
112-connecting cavity 113-anti-drop cavity 211-arc sealing surface
212-guiding cone 1111-guiding surface 1131-subchamber.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The embodiment of the utility model provides a joint assembly, which comprises a pump lower body 10, a ball seat 20 and a sealing ball 30, wherein an oil inlet cavity 11 and a connecting channel 12 are arranged in the pump lower body 10; the ball seat 20 is in threaded connection with the connecting channel 12, an oil inlet channel 21 is arranged in the ball seat 20, the oil inlet channel 21 is communicated with the oil inlet cavity 11, and an arc-shaped sealing surface 211 is arranged at one end, close to the oil inlet cavity 11, of the inner wall of the oil inlet channel 21; the sealing ball 30 is arranged in the oil inlet cavity 11, the diameter of the sealing ball 30 is larger than the inner diameter of the oil inlet channel 21, and the sealing ball 30 can be in sealing fit with the arc-shaped sealing surface 211 under the action of oil pressure.
Specifically, the joint assembly is provided with a pump lower body 10, a ball seat 20 and a sealing ball 30, wherein an oil inlet cavity 11 and a connecting channel 12 are arranged in the pump lower body 10; the ball seat 20 is connected in the connecting channel 12 in a threaded manner, the oil inlet channel 21 is formed in the ball seat 20, the oil inlet channel 21 is communicated with the oil inlet cavity 11, the sealing ball 30 is arranged in the oil inlet cavity 11, the joint component is arranged at the upper end of the lower pump body 10 and is arranged between the sealing ball 30 and the ball seat 20, when the piston moves in the direction away from the ball seat 20 to pump oil, the underground oil body can enter the oil inlet cavity 11 through the oil inlet channel 21, and when the piston moves in the direction towards the ball seat 20 to pump oil, the oil body in the oil inlet cavity 11 drives the sealing ball 30 to seal the oil inlet channel 21, and as one end, close to the oil inlet cavity 11, of the inner wall of the oil inlet channel 21 is provided with an arc sealing surface 211, the arc sealing surface 211 is matched with the sealing ball 30 to seal the oil inlet channel 21, and simultaneously impurities such as sediment in the oil body can be effectively prevented from being mixed between the sealing ball 30 and the ball seat 20, so that the oil pumping efficiency of the oil pump is improved.
In this embodiment, when the piston moves towards the direction of the ball seat 20, the oil body in the oil inlet cavity 11 applies a sealing force for sealing the oil inlet channel 21 to the sealing ball 30, meanwhile, the oil body in the oil inlet cavity 11 drives the ball valve of the piston to open, so that the oil body passes through the piston and enters the oil outlet cavity, and when the piston moves towards the direction away from the ball seat 20, the oil body in the oil outlet cavity drives the ball valve of the piston to close, and the piston drives the oil body in the oil outlet cavity to be discharged.
In this embodiment, the oil inlet chamber 11 includes an oil accommodating chamber 111 and a connecting chamber 112, the connecting chamber 112 is connected with the connecting channel 12 and is communicated with the oil inlet channel 21, the oil accommodating chamber 111 is communicated with the connecting chamber 112, the inner diameter of the connecting chamber 112 is larger than the diameter of the sealing ball 30, and the inner diameter of the oil accommodating chamber 111 is larger than the inner diameter of the connecting chamber 112. Specifically, the oil containing cavity 111 can accommodate the oil body entering the oil inlet channel 21, the connecting cavity 112 can transition the connection between the oil inlet channel 21 and the oil containing cavity 111, and since the inner diameter of the connecting cavity 112 is smaller than the inner diameter of the oil containing cavity 111, guiding can be provided for the movement of the sealing ball 30 towards the oil inlet channel 21, so that the sealing ball 30 can be accurately engaged with the arc-shaped sealing surface 211 of the oil inlet channel 21 under the oil pressure action of the oil containing cavity 111.
In this embodiment, further, a guiding surface 1111 is disposed on an end of the inner wall of the oil containing cavity 111 near the connecting cavity 112, and the guiding surface 1111 extends from the side wall of the oil containing cavity 111 to the connecting cavity 112. Specifically, the guiding surface 1111 may provide a guide for the movement of the sealing ball 30 in the direction of the connection chamber 112, and thus may rapidly guide the sealing ball 30 to the oil inlet passage 21, and accelerate the sealing of the oil inlet passage 21.
In this embodiment, further, the guiding surface 1111 is an arc surface. In particular, the arcuate surfaces may reduce wear of the sealing ball 30 when in contact with the guide surface 1111.
In this embodiment, the oil inlet chamber 11 further includes an anti-falling chamber 113, the anti-falling chamber 113 is communicated with one end of the oil containing chamber 111 away from the connecting chamber 112, and the inner diameter of the anti-falling chamber 113 is smaller than the inner diameter of the sealing ball 30. Specifically, the escape prevention chamber 113 can prevent the sealing ball 30 from escaping from the oil chamber 111.
It is understood that the anti-drop cavity 113 may be a cylindrical cavity, an annular cavity, or the like.
In this embodiment, in order to prevent the sealing ball 30 from being engaged with the anti-drop cavity 113, the anti-drop cavity 113 is blocked, the anti-drop cavity 113 includes a plurality of sub-cavities 1131 arranged at intervals, and each sub-cavity 1131 is communicated with the oil containing cavity 111. Specifically, the anti-falling cavity 113 is provided with a plurality of sub-cavities 1131 arranged at intervals, so that even if one of the sub-cavities 1131 is blocked by the sealing ball 30 under the drive of the oil inlet pressure, the oil in the oil inlet cavity 11 can also pass out of the other sub-cavities 1131, and further, the sealing ball 30 can be prevented from blocking the anti-falling cavity 113 while preventing the sealing ball 30 from falling out of the oil containing cavity 111.
In this embodiment, the joint assembly further includes a lower joint 40, the inside of the pump lower body 10 is further provided with a connection port 13, the connection port 13 is connected to one end of the connection channel 12 far away from the oil inlet cavity 11, the lower joint 40 is in threaded connection with the connection port 13, one end of the lower joint 40 near the ball seat 20 is provided with an extension section 41, and an anti-blocking gap 42 is formed between the extension section 41 and the ball seat 20. Specifically, the lower joint 40 may be used for connecting other components such as an oil inlet pipe, and since the anti-blocking gap 42 is formed between the extension section 41 of the lower joint 40 and the ball seat 20, the anti-blocking gap 42 can effectively prevent impurities such as silt from being blocked between the lower joint 40 and the ball seat 20, and wear is caused on the lower joint 40 and the ball seat 20, and the silt in the anti-blocking gap 42 can be carried out by the oil body under the flowing of the oil body.
In this embodiment, the joint assembly further includes a sealing ring 50, and the sealing ring 50 is sleeved on the surface of the extension section 41 and is in sealing fit with the side wall of the connection port 13. Specifically, the sealing ring 50 can improve the sealing performance of the lower joint 40 and the side wall of the connecting port 13, so as to avoid oil leakage of the joint assembly.
In this embodiment, further, a guiding cone 212 is disposed on the side wall of the oil inlet channel 21 near one end of the lower joint 40, and the guiding cone 212 extends to the anti-blocking gap 42. Specifically, the guiding cone 212 may provide guiding for the oil body of the anti-blocking gap 42 toward the oil inlet channel 21, so as to facilitate guiding out of the oil body.
The technical scheme of the utility model provides an oil pump which comprises a joint assembly.
Specifically, the oil-well pump can effectively avoid impurities such as sediment in the oil body from being mixed between the sealing ball 30 and the ball seat 20 in the oil pumping process by arranging the joint assembly, thereby improving the oil pumping efficiency of the oil-well pump.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. A joint assembly, comprising:
the pump comprises a pump lower body, wherein an oil inlet cavity and a connecting channel are arranged in the pump lower body;
the ball seat is in threaded connection with the connecting channel, an oil inlet channel is arranged in the ball seat, the oil inlet channel is communicated with the oil inlet cavity, and an arc-shaped sealing surface is arranged at one end, close to the oil inlet cavity, of the inner wall of the oil inlet channel;
the sealing ball is arranged in the oil inlet cavity, the diameter of the sealing ball is larger than the inner diameter of the oil inlet channel, and the sealing ball can be in sealing fit with the arc-shaped sealing surface under the action of oil pressure.
2. The joint assembly according to claim 1, wherein the oil inlet chamber comprises an oil containing chamber and a connecting chamber, the connecting chamber is connected with the connecting channel and is communicated with the oil inlet channel, the oil containing chamber is communicated with the connecting chamber, the inner diameter of the connecting chamber is larger than the diameter of the sealing ball, and the inner diameter of the oil containing chamber is larger than the inner diameter of the connecting chamber.
3. The fitting assembly of claim 2 wherein an end of the interior wall of the oil receiving chamber adjacent the connecting chamber is provided with a guide surface extending from the side wall of the oil receiving chamber to the connecting chamber.
4. A joint assembly according to claim 3, wherein the guide surface is arcuate.
5. The joint assembly of claim 2, wherein the oil inlet chamber further comprises an anti-drop chamber, the anti-drop chamber being in communication with an end of the oil containing chamber remote from the connecting chamber, the anti-drop chamber having an inner diameter less than an inner diameter of the sealing ball.
6. The connector assembly of claim 5, wherein the anti-drop cavity comprises a plurality of sub-cavities disposed in spaced relation, each of the sub-cavities being in communication with the oil-containing cavity.
7. The joint assembly according to any one of claims 1 to 6, further comprising a lower joint, wherein a connection port is further provided in the pump lower body, the connection port is connected to an end of the connection channel away from the oil inlet chamber, the lower joint is in threaded connection with the connection port, an extension section is provided at an end of the lower joint close to the ball seat, and an anti-blocking gap is formed between the extension section and the ball seat.
8. The fitting assembly of claim 7 further comprising a sealing ring disposed over a surface of said extension and in sealing engagement with a sidewall of said connection port.
9. The fitting assembly of claim 7 wherein a sidewall of said oil inlet passage is provided with a pilot cone adjacent an end of said lower fitting, said pilot cone extending to said anti-backup gap.
10. An oil pump comprising a joint assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320238345.5U CN219622870U (en) | 2023-02-15 | 2023-02-15 | Joint assembly and oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320238345.5U CN219622870U (en) | 2023-02-15 | 2023-02-15 | Joint assembly and oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219622870U true CN219622870U (en) | 2023-09-01 |
Family
ID=87775665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320238345.5U Active CN219622870U (en) | 2023-02-15 | 2023-02-15 | Joint assembly and oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219622870U (en) |
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2023
- 2023-02-15 CN CN202320238345.5U patent/CN219622870U/en active Active
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