CN219220705U - Combined device of plug pump suction and discharge valve - Google Patents
Combined device of plug pump suction and discharge valve Download PDFInfo
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- CN219220705U CN219220705U CN202221148185.7U CN202221148185U CN219220705U CN 219220705 U CN219220705 U CN 219220705U CN 202221148185 U CN202221148185 U CN 202221148185U CN 219220705 U CN219220705 U CN 219220705U
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- suction valve
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Abstract
The utility model discloses a combined device of a plug pump suction and discharge valve, which comprises a suction and discharge valve seat, wherein a suction valve cavity is fixedly arranged on one side of the suction and discharge valve seat, a suction valve cavity is formed in the middle of the joint of the suction and discharge valve seat and the suction valve cavity, a first reset spring is fixedly arranged on one side of the inner wall of the suction valve cavity, a suction valve plug is fixedly arranged at one end of the first reset spring, a liquid inlet communicated with the suction valve cavity is formed in the top end of the suction and discharge valve seat, a liquid flow through hole is formed in the bottom of the suction valve cavity, and a discharge valve cavity communicated with the liquid flow through hole is formed in the other side of the suction and discharge valve seat.
Description
Technical Field
The utility model relates to the technical field of a plunger pump, in particular to a combined device of a plunger pump suction valve.
Background
The piston pump is an important device of a hydraulic system, and the piston pump can make the volume of a sealed working cavity change to realize oil suction and pressure oil by means of reciprocating motion of the piston in a cylinder body. The plug pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions requiring high pressure, high flow and flow regulation, such as hydraulic presses, engineering machinery and ships. The suction-discharge valve assembly of the plunger pump plays a vital role as an important part of the plunger pump.
The whole sealing performance of the existing suction-discharge valve combination device is poor, and the phenomenon of backflow of liquid flow is easy to occur, so that the working efficiency of the plunger pump is influenced, and the service life is relatively low.
Disclosure of Invention
The utility model aims to provide a combined device of a plug pump suction and discharge valve, which solves the problems that the existing suction and discharge valve combined device provided in the background art is poor in overall sealing performance, liquid flow is easy to flow back, the working efficiency of the plug pump is affected, and the service life is relatively low.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a combination device of suction valve of filler pump suction exhaust valve, includes the suction valve seat, suction valve seat's one side is fixed to be provided with suction valve, suction valve cavity has been seted up to suction valve seat and suction valve seat junction's middle part, suction valve cavity inner wall's one side is fixed to be provided with first reset spring, suction valve plug is fixed to be provided with in first reset spring's one end, suction valve seat's communicating feed liquor hole with suction valve cavity has been seted up on suction valve seat's top, suction valve cavity's bottom is equipped with the liquid flow hole, suction valve seat's opposite side has seted up the communicating discharge valve cavity of liquid flow hole, discharge valve cavity's inside sliding connection has discharge valve plug, suction valve seat and the peripheral fixed intercommunication of discharge valve cavity junction have the baffle.
Preferably, the suction valve plug is in sliding connection with the suction valve cavity, and a sealing ring is fixedly arranged at the periphery of the joint of the suction valve seat and the suction valve.
Preferably, a limit stop is fixedly arranged at one end of the inner wall of the flow guide body, a valve rod is slidably connected to the inner side of the limit stop, a pushing plate is fixedly arranged in the middle of the valve rod, and a second reset spring is arranged between the pushing plate and the limit stop.
Preferably, two sliding seats are fixedly arranged in the middle of the inner wall of the guide body, and a plurality of evenly distributed balls are rotationally connected to the surfaces of the two sliding seats.
Preferably, one end of the valve rod is fixedly connected with one side of the discharge valve plug.
Preferably, the bottom of the guide body is fixedly communicated with a discharge pipeline.
Compared with the prior art, the utility model has the beneficial effects that: the plug pump suction and discharge valve combination device has compact structural design, excellent sealing performance, difficult occurrence of oil leakage and oil seepage, staggered liquid inlet holes and liquid flow through holes, and can effectively avoid the phenomenon of liquid flow backflow by matching with a valve plug in the suction and discharge process, ensure the stability of the working performance of the plug pump, and have higher overall wear resistance and long service life.
Drawings
FIG. 1 is a cross-sectional view of a body of the present utility model;
FIG. 2 is a cross-sectional view of a current carrier of the present utility model;
fig. 3 is a schematic cross-sectional view of a slide according to the present utility model.
In the figure: 1. a suction and discharge valve seat; 2. suction valve; 3. a flow guide body; 4. a liquid inlet hole; 5. sucking the valve cavity; 6. a first return spring; 7. a suction valve plug; 8. a seal ring; 9. a fluid flow hole; 10. a discharge valve plug; 11. discharging the valve cavity; 12. a slide; 13. a ball; 14. a pushing plate; 15. a second return spring; 16. a limit stop; 17. a valve stem; 18. and a discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-3, the utility model provides a combined device of a plunger pump suction and discharge valve, which comprises a suction and discharge valve seat 1, wherein a suction valve hole 2 is fixedly arranged at one side of the suction and discharge valve seat 1, a suction valve cavity 5 is arranged at the middle part of the joint of the suction and discharge valve seat 1 and the suction valve hole 2, a first return spring 6 is fixedly arranged at one side of the inner wall of the suction valve cavity 5, a suction valve plug 7 is fixedly arranged at one end of the first return spring 6, a liquid inlet 4 communicated with the suction valve cavity 5 is arranged at the top end of the suction and discharge valve seat 1, a liquid flow through hole 9 is arranged at the bottom of the suction valve cavity 5, a discharge valve cavity 11 communicated with the liquid flow through hole 9 is arranged at the other side of the suction and discharge valve seat 1, a discharge valve plug 10 is slidingly connected inside the discharge valve cavity 11, a fluid guide body 3 is fixedly connected at the periphery of the joint of the suction and discharge valve seat 1, the combined device of the plunger pump suction and discharge valve is compact in structure, has excellent sealing performance, the phenomenon of oil leakage and oil leakage is avoided, the liquid inlet 4 and the liquid flow through hole 9 are alternately arranged, the liquid flow through hole 9 is matched in the suction and discharge process, the liquid flow plug can effectively guarantee the stable performance of the pump.
The suction valve plug 7 is in sliding connection with the suction valve cavity 5, and the periphery of the joint of the suction valve seat 1 and the suction valve 2 is fixedly provided with a sealing ring 8, so that the suction valve has excellent sealing performance and is not easy to leak oil.
The fixed limit stop 16 that is provided with of one end of baffle 3 inner wall, limit stop 16's inboard sliding connection has valve rod 17, and the fixed push plate 14 that is provided with in middle part of valve rod 17 is pushed and is equipped with second reset spring 15 between push plate 14 and the limit stop 16, and one end of valve rod 17 and one side fixed connection of discharge valve plug 10, the fixed intercommunication in bottom of baffle 3 have discharge pipeline 18, can make valve rod 17 carry out reciprocating motion, inhale the discharge work more smooth.
The middle part of the inner wall of the guide body 3 is fixedly provided with two sliding seats 12, the surfaces of the two sliding seats 12 are rotationally connected with a plurality of evenly distributed balls 13, and the valve rod 17 is in contact with the guide body 3 in a rolling manner in the moving process, so that the friction between the valve rod 17 and the guide body 3 is reduced, and the wear resistance of the combined device is improved.
When the embodiment of the application is used, the following steps are adopted: the suction valve assembly structure is directly installed on the injection pump according to a normal use mode, liquid flow enters the suction valve cavity 5 from the liquid inlet hole 4 under the pushing of the injection pump, the suction valve plug 7 is pushed to move under the action of hydraulic pressure to extrude the first reset spring 6, when the suction valve plug 7 moves to be communicated with the liquid flow through hole 9, liquid flow enters the discharge valve cavity 11 through the liquid flow through hole 9 to extrude the discharge valve plug 10 to move, the liquid flow through hole 9 is blocked by the movement of the suction valve plug 7 under the driving of the first reset spring 6 due to the reduction of the hydraulic pressure in the suction valve cavity 5, the injection pump suction valve assembly structure is compact in structural design, has excellent sealing performance, is not easy to leak oil, is matched with the liquid inlet hole 4 and the liquid flow through hole 9 in a staggered mode, can effectively avoid the phenomenon of liquid flow backflow, can ensure the stability of the working performance of the injection pump, and after the liquid flow enters the liquid guide body 3, the liquid flow is discharged through the discharge pipeline 18, and the overall wear resistance is higher, and the service life is long.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The utility model provides a combination device of stopper pump suction valve, includes suction valve seat (1), its characterized in that: the novel valve is characterized in that a suction valve (2) is fixedly arranged on one side of the suction valve seat (1), a suction valve cavity (5) is formed in the middle of the joint of the suction valve seat (1) and the suction valve (2), a first reset spring (6) is fixedly arranged on one side of the inner wall of the suction valve cavity (5), a suction valve plug (7) is fixedly arranged at one end of the first reset spring (6), a liquid inlet (4) communicated with the suction valve cavity (5) is formed in the top end of the suction valve seat (1), a liquid flow hole (9) is formed in the bottom of the suction valve cavity (5), a discharge valve cavity (11) communicated with the liquid flow hole (9) is formed in the other side of the suction valve seat (1), a discharge valve (10) is slidingly connected to the inner side of the discharge valve cavity (11), and a diversion body (3) is fixedly communicated with the periphery of the joint of the suction valve seat (1) and the discharge valve cavity (11).
2. A combination of a stopper pump suction valve as set forth in claim 1 wherein: the suction valve plug (7) is in sliding connection with the suction valve cavity (5), and a sealing ring (8) is fixedly arranged at the periphery of the joint of the suction valve seat (1) and the suction valve (2).
3. A combination of a stopper pump suction valve as set forth in claim 1 wherein: one end of the inner wall of the flow guide body (3) is fixedly provided with a limit stop (16), the inner side of the limit stop (16) is slidably connected with a valve rod (17), the middle part of the valve rod (17) is fixedly provided with a pushing plate (14), and a second reset spring (15) is arranged between the pushing plate (14) and the limit stop (16).
4. A combination of a stopper pump suction valve as set forth in claim 1 wherein: two sliding seats (12) are fixedly arranged in the middle of the inner wall of the guide body (3), and a plurality of evenly distributed balls (13) are rotationally connected to the surfaces of the two sliding seats (12).
5. A combination of a stopper pump suction valve as claimed in claim 3, wherein: one end of the valve rod (17) is fixedly connected with one side of the discharge valve plug (10).
6. A combination of a stopper pump suction valve as set forth in claim 1 wherein: the bottom of the guide body (3) is fixedly communicated with a discharge pipeline (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221148185.7U CN219220705U (en) | 2022-05-13 | 2022-05-13 | Combined device of plug pump suction and discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221148185.7U CN219220705U (en) | 2022-05-13 | 2022-05-13 | Combined device of plug pump suction and discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219220705U true CN219220705U (en) | 2023-06-20 |
Family
ID=86753731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221148185.7U Active CN219220705U (en) | 2022-05-13 | 2022-05-13 | Combined device of plug pump suction and discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219220705U (en) |
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2022
- 2022-05-13 CN CN202221148185.7U patent/CN219220705U/en active Active
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