CN209990926U - Make things convenient for flow control's pump valve - Google Patents
Make things convenient for flow control's pump valve Download PDFInfo
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- CN209990926U CN209990926U CN201920809357.2U CN201920809357U CN209990926U CN 209990926 U CN209990926 U CN 209990926U CN 201920809357 U CN201920809357 U CN 201920809357U CN 209990926 U CN209990926 U CN 209990926U
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Abstract
The utility model discloses a make things convenient for flow control's pump valve, which comprises a valve body, the valve barrel, first pivot, the second pivot, the shrouding, cam and actuating lever, first pivot sets up in the valve body, the upper portion of first pivot is rotated with the upper portion of valve body and is connected, the valve body is stretched out to the upper end of first pivot, first pivot is the hollow sleeve structure, second pivot cover is established inside first pivot, the valve sleeve sets up in the valve body, and valve barrel upper end and first pivot fixed connection, the lower extreme of valve barrel rotates with the end that stretches out of second pivot to be connected, the valve barrel is provided with the mounting hole, the shrouding passes through the setting of mounting hole and valve barrel slip, the shrouding comprises coaxial plectane, first crown plate and second crown plate. The utility model discloses a pump valve flow control is convenient, and the shrouding can not collide with the valve body during flow control, has reduced the wearing and tearing of shrouding and valve body, and opening and close all frictionless in the process, has improved sealed reliability, is applicable to the operating mode of frequently opening and close for a long time.
Description
Technical Field
The utility model relates to a pump valve technical field particularly, relates to a make things convenient for flow control's pump valve.
Background
The pump valve is a general name of a pump and a valve, and is a valve of the pump or a valve with a pump function. The reason pumps and valves are often associated is the use case. That is, there are valves in places where pumps are provided, and there are places where pumps are needed. They are used in liquid delivery applications. Of course, the valve is also used for gas. Vacuum pumps are also associated with the gas. Here we say a new kind of valve rod and valve seat for pump valve.
The valve rod and the valve seat for the existing pump valve have certain defects when in use, the valve rod and the valve seat cannot control the flow velocity and the flow rate of water flow when in maintenance and treatment, are troublesome, and have poor sealing performance when in use.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model aims at providing a make things convenient for flow control's pump valve, its flow control is convenient, and the shrouding can not collide with the valve body during flow control, has reduced the wearing and tearing of shrouding with the valve body, and opening and close the process and all do not have the friction, has improved sealed reliability, is applicable to the operating mode of frequently opening and close for a long time.
In order to achieve the above object, the utility model adopts the following technical scheme: a pump valve convenient for flow regulation comprises a valve body, a valve sleeve, a first rotating shaft, a second rotating shaft, a circular sealing plate, a cam and a driving rod, wherein the first rotating shaft is arranged in the valve body, the upper part of the first rotating shaft is rotationally connected with the upper part of the valve body, the upper end of the first rotating shaft extends out of the valve body, the first rotating shaft is of a hollow sleeve structure, the second rotating shaft is sleeved inside the first rotating shaft, the upper end of the second rotating shaft is extended out of the upper end of the first rotating shaft, the lower end of the second rotating shaft is extended out of the lower end of the first rotating shaft, the valve sleeve is arranged in the valve body, the upper end of the valve sleeve is fixedly connected with the first rotating shaft, the lower end of the valve sleeve is rotationally connected with the extending end of the second rotating shaft, one side, away from the second rotating shaft, of the valve sleeve is provided with a mounting hole, the sealing plate is, and the axis of the closing plate is coaxial with the valve sleeve.
The sealing plate is composed of a coaxial circular plate, a first annular plate and a second annular plate, a plurality of first sliding blocks are uniformly fixed at the edge of the circular plate along the circumferential direction, a plurality of first sliding grooves corresponding to the first sliding blocks are formed in the inner circle of the first annular plate along the circumferential direction, a first sliding box is fixedly connected in each first sliding groove, the first sliding blocks are slidably arranged in the first sliding boxes, and a plurality of second sliding blocks are uniformly fixed on the outer circle of the first annular plate along the circumferential direction; a plurality of second sliding grooves corresponding to the second sliding blocks are axially formed in the inner circle of the second ring plate, a second sliding box is fixedly connected in each second sliding groove, and the second sliding blocks are slidably arranged in the second sliding boxes; the outer fixed connection of shrouding has helping hand board, the one side of helping hand board respectively with be in the terminal surface fixed connection of length direction of first slip box and second slip box on same diameter.
The center of the power assisting plate is provided with a driving through hole, the cam is fixedly arranged on the second rotating shaft and corresponds to the driving through hole, one end of the driving rod is connected with the cam in a transmission mode, the other end of the driving rod penetrates out of the valve sleeve, the penetrating end of the driving rod extends out of the driving through hole, a spring is sleeved outside the driving rod, and two ends of the spring are fixedly connected with the power assisting plate and the driving rod respectively.
And a sealing ring is arranged on one surface of the sealing plate, which is far away from the first rotating shaft.
The working principle is as follows: the first step, the first rotating shaft is rotated to enable the valve sleeve connected to the first rotating shaft to rotate synchronously until the valve sleeve rotates to be coaxial with the valve port of the valve body. And step two, rotating the second rotating shaft, synchronously rotating the cam on the second rotating shaft, and driving the driving rod to do reciprocating linear motion in the rotating process of the cam. In the motion process of the driving rod, the force of the driving rod is transmitted to the sealing plate by the spring, the sealing plate is driven to move along the axis of the valve port of the valve body and close to the valve port, and when the end face of the sealing plate is tightly propped against the valve port, the sealing of the valve body is completed under the action of the sealing ring. And thirdly, flow regulation. When the flow needs to be adjusted, on the basis of the second step, the second rotating shaft is further rotated in the same direction, the second rotating shaft continues to rotate, the cam drives the driving rod to continue to advance in the same direction, the spring is compressed in the advancing process of the driving rod, so that the driving rod is tightly propped against the circular plate and drives the circular plate to advance, the first sliding block on the circular plate moves forward along the second sliding block under the action of the driving rod, and the sealing plate is opened with a flow hole with the same area as the circular plate. At this time, if the flow rate needs to be further increased, only the second rotating shaft needs to be rotated in the same direction. The second rotating shaft continues to rotate, the driving rod continues to move, when the first sliding block slides to be in contact with the end face of the first sliding groove, the first annular plate moves forwards under the driving of the first sliding block and the first sliding groove, the area of the flow hole of the sealing plate is increased, the increased area is the area of the first annular plate, and if the flow needs to be increased, the operation is the same as that of the prior art, and the operation is omitted. The operation of opening the sealing plate is to reversely rotate the second rotating shaft to the circular plate to withdraw the sealing plate, and then reversely rotate the first rotating shaft. When the axis of the seal plate is perpendicular to the axis of the valve port of the valve body, the maximum flow of the pump valve is realized by rotating the first rotating shaft. Here, the first step is aimed at aligning the sealing plate with the valve port of the valve body. The second step is aimed at sealing the pump valve, and it is completed when the pump valve does not need to be opened. The third step and the fourth step are aimed at adjusting the flow rate by means of a cam, a driving rod, a circular plate, a first annular plate and a second annular plate.
The utility model discloses a pump valve flow control is convenient, and the shrouding can not collide with the valve body during flow control, has reduced the wearing and tearing of shrouding and valve body, and opening and close all frictionless in the process, has improved sealed reliability, is applicable to the operating mode of frequently opening and close for a long time.
Preferably, a plurality of balance holes which horizontally penetrate through the sealing plate are formed in the sealing plate. The valve body is internally provided with a left cavity inside the valve, and when the sealing plate is tightly pressed on the valve port of the valve body, a balance cavity is formed between one surface of the sealing plate, which is far away from the valve port, and the valve sleeve. The balance hole is communicated with the left cavity and the balance cavity in the valve. By utilizing the characteristics of fluid transmission, the acting forces of fluid media borne by the valve sleeve and the sealing plate are correspondingly balanced. This greatly reduces the opening and closing torque required by the pump valve. Therefore, the pump valve can be suitable for the working conditions of bidirectional medium and high ultrahigh pressure and medium and large overlarge drift diameter and can be easily operated manually and automatically.
Preferably, the cam has a third chute along the circumferential direction, a sliding column is slidably arranged in the third chute, and one end of the driving rod is fixedly connected with the sliding column through a pin. The first rotating shaft, the cam, the third sliding chute, the sliding column, the pin and the driving rod are combined to form a locked groove cam mechanism, so that the driving rod can realize the reciprocating linear motion of the driving rod under the traction and guidance of the groove cam mechanism. And the sealing plate has definite reciprocating linear motion under the traction and guide of the driving rod and the support of the inner hole of the valve sleeve, so that the frictionless opening and closing of the pump valve are realized.
Preferably, a balance sealing assembly is arranged between the valve sleeve and the closing plate, and a driven sealing assembly is arranged between the driving rod and the valve sleeve. The balance sealing assembly ensures the sealing performance between the valve sleeve and the sealing plate. The driven sealing assembly is made of the same product in the prior art. The driven sealing assembly ensures the sealing performance between the driving rod and the valve sleeve.
Preferably, a first hand wheel is fixedly arranged at the upper end of the first rotating shaft, and a second hand wheel is fixedly arranged at the upper end of the second rotating shaft. The first hand wheel of setting makes things convenient for manual rotation first pivot, and the second hand wheel of setting makes things convenient for manual rotation second pivot.
Preferably, the lower end of the second rotating shaft is rotatably connected with the bottom of the valve body through a first bearing. The stability of second pivot has been improved to the first bearing that sets up.
Preferably, a plurality of second bearings distributed along the axial direction are coaxially arranged between the first rotating shaft and the second rotating shaft. The stability of first pivot has been improved to the second bearing that sets up.
The utility model has the advantages that:
(1) the utility model discloses a pump valve flow control is convenient, and the shrouding can not collide with the valve body during flow control, has reduced the wearing and tearing of shrouding and valve body, and opening and close all frictionless in the process, has improved sealed reliability, is applicable to the operating mode of frequently opening and close for a long time.
(2) Be provided with a plurality of balance holes that run through the shrouding on the shrouding, be provided with the interior left side chamber of valve in the valve body, when the shrouding compresses tightly on the valve port of valve body, form balance chamber between the one side and the valve barrel that the valve port was kept away from to the shrouding. The balance hole is communicated with the left cavity and the balance cavity in the valve. By utilizing the characteristics of fluid transmission, the acting forces of fluid media borne by the valve sleeve and the sealing plate are correspondingly balanced. This greatly reduces the opening and closing torque required by the pump valve. Therefore, the pump valve can be suitable for the working conditions of bidirectional medium and high ultrahigh pressure and medium and large overlarge drift diameter and can be easily operated manually and automatically.
(3) The first hand wheel of setting makes things convenient for manual rotation first pivot, and the second hand wheel of setting makes things convenient for manual rotation second pivot.
(4) The stability of second pivot has been improved to the first bearing that sets up.
(5) The stability of first pivot has been improved to the second bearing that sets up.
Drawings
Fig. 1 is a schematic view of the overall structure of a pump valve for facilitating flow regulation according to an embodiment of the present invention;
FIG. 2 is a view A-A of FIG. 1;
fig. 3 is a schematic structural view of a cam in embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a cam in embodiment 1 of the present invention;
fig. 5 is a schematic structural view of a sealing plate with a booster plate according to embodiment 1 of the present invention;
fig. 6 is a first schematic structural view of a sealing plate according to embodiment 1 of the present invention;
fig. 7 is a second schematic structural view of a sealing plate in embodiment 1 of the present invention;
fig. 8 is a schematic structural view of the first slide cassette according to embodiment 1 of the present invention.
Description of reference numerals:
1. a valve body; 2. a valve housing; 3. a first rotating shaft; 4. a second rotating shaft; 5. closing the plate; 6. a cam; 7. a drive rod; 8. mounting holes; 9. a circular plate; 10. a first ring plate; 11. a second ring plate; 12. a first slider; 13. a first chute; 14. a first slide cassette; 15. a second slider; 16. a second chute; 17. a second slide cassette; 18. a booster plate; 19. a drive through hole; 20. a spring; 21. a seal ring; 22. a balance hole; 23. a third chute; 24. a sliding post; 25. a pin; 26. a balanced seal assembly; 27. a driven seal assembly; 28. a first hand wheel; 29. a second hand wheel; 30. a first bearing; 31. a second bearing; 32. a balancing chamber; 33. a left chamber within the valve.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 to 8, a pump valve convenient for flow rate adjustment includes a valve body 1, a valve sleeve 2, a first rotating shaft 3, a second rotating shaft 4, a circular sealing plate 5, a cam 6 and a driving rod 7, wherein the first rotating shaft 3 is disposed in the valve body 1, the upper portion of the first rotating shaft 3 is rotatably connected to the upper portion of the valve body 1, the upper end of the first rotating shaft 3 extends out of the valve body 1, the first rotating shaft 3 is of a hollow sleeve structure, the second rotating shaft 4 is sleeved inside the first rotating shaft 3, the upper end of the second rotating shaft 4 extends out from the upper end of the first rotating shaft 3, the lower end of the second rotating shaft 4 extends out from the lower end of the first rotating shaft 3, the valve sleeve 2 is disposed in the valve body 1, the upper end of the valve sleeve 2 is fixedly connected to the first rotating shaft 3, the lower end of the valve sleeve 2 is rotatably connected to the extending end of the second rotating shaft 4, one side 2 that the valve barrel kept away from second pivot 4 is provided with mounting hole 8, shrouding 5 through mounting hole 8 with valve barrel 2 slides and sets up, just shrouding 5's axis with valve barrel 2 is coaxial.
As shown in fig. 5-7, the sealing plate 5 is composed of a circular plate 9, a first annular plate 10 and a second annular plate 11 which are coaxial, a plurality of first sliding blocks 12 are uniformly fixed at the edge of the circular plate 9 along the circumferential direction, a plurality of first sliding grooves 13 corresponding to the first sliding blocks 12 are formed in the inner circle of the first annular plate 10 along the circumferential direction, a first sliding box 14 is fixedly connected in the first sliding grooves 13, the first sliding blocks 12 are slidably arranged in the first sliding box 14, and a plurality of second sliding blocks 15 are uniformly fixed at the outer circle of the first annular plate 10 along the circumferential direction; a plurality of second sliding grooves 16 corresponding to the second sliding blocks 15 are axially arranged on the inner circle of the second annular plate 11, a second sliding box 17 is fixedly connected in each second sliding groove 16, and the second sliding blocks 15 are slidably arranged in the second sliding boxes 17; an assistant plate 18 is fixedly connected outside the sealing plate 5, and one surface of the assistant plate 18 is fixedly connected with the end surfaces of the first sliding box 14 and the second sliding box 17 which are on the same diameter along the length direction.
Drive through-hole 19 has been seted up at helping hand board 18 center department, cam 6 is fixed to be set up on the second pivot 4 and with drive through-hole 19 corresponds, the one end of actuating lever 7 with cam 6 transmission is connected, the other end of actuating lever 7 by valve barrel 2 is worn out, and wears out the end by drive through-hole 19 stretches out, the outside cover of actuating lever 7 is equipped with spring 20, spring 20 both ends respectively with helping hand board 18 and actuating lever 7 fixed connection.
And a sealing ring 21 is arranged on one surface of the sealing plate 5, which is far away from the first rotating shaft 3.
As shown in fig. 2-4, the cam 6 is provided with a third sliding slot 23 along a circumferential direction thereof, a sliding column 24 is slidably disposed in the third sliding slot 23, and one end of the driving rod 7 is fixedly connected to the sliding column 24 through a pin 25. The first rotating shaft 3, the cam 6, the third sliding chute 23, the sliding column 24, the pin 25 and the driving rod 7 are combined to form a locked groove cam 6 mechanism, so that the driving rod 7 can realize the reciprocating linear motion of the driving rod 7 under the traction and guidance of the groove cam 6 mechanism. And the sealing plate 5 has definite reciprocating linear motion under the traction and guide of the driving rod 7 and the support of the inner hole of the valve sleeve 2, so that the friction-free opening and closing of the pump valve are realized.
As shown in fig. 1, a balance seal assembly 26 is disposed between the valve housing 2 and the closing plate 5, and a driven seal assembly 27 is disposed between the driving rod 7 and the valve housing 2. The provision of the balanced seal assembly 26 ensures a seal between the valve housing 2 and the closure plate 5. The provision of the driven sealing assembly 27 ensures the tightness between the driving rod 7 and the valve housing 2.
As shown in fig. 1, a first hand wheel 28 is fixedly disposed at an upper end of the first rotating shaft 3, and a second hand wheel 29 is fixedly disposed at an upper end of the second rotating shaft 4. A first hand wheel 28 is provided to facilitate manual rotation of the first shaft 3 and a second hand wheel 29 is provided to facilitate manual rotation of the second shaft 4.
As shown in fig. 1, the lower end of the second rotating shaft 4 is rotatably connected to the bottom of the valve body 1 through a first bearing 30. The provision of the first bearing 30 improves the stability of the second shaft 4.
As shown in fig. 1, a plurality of second bearings 31 distributed along the axial direction are coaxially disposed between the first rotating shaft 3 and the second rotating shaft 4. The provision of the second bearing 31 improves the stability of the first shaft 3.
As shown in fig. 7, in order to ensure that the stroke of the circular plate 9 is larger than the thickness thereof, the first slider 12 is formed in an L shape, and the first slider 12 is attached to the upper surface of the circular plate 9. The second slider 15 is also provided in the same manner. As shown in fig. 7 and 8, in order to ensure the sealing property, the end surface of the open end of the first slide case 14 is bonded to the side wall of the circular plate 9 when the flow rate is not adjusted (i.e., when the valve port is closed by the sealing plate 5), and a sealing rubber is provided at the bonded portion. To ensure the fitting, the first sliding box 14 can be an arc box (not shown) with the same arc as the side wall of the circular plate 9.
The working principle is as follows: in the first step, the first rotating shaft 3 is rotated to make the valve sleeve 2 connected to the first rotating shaft 3 rotate synchronously until the valve sleeve 2 rotates to be coaxial with the valve port of the valve body 1. And secondly, rotating the second rotating shaft 4, synchronously rotating the cam 6 on the second rotating shaft, and driving the driving rod 7 to do reciprocating linear motion in the rotating process of the cam 6. In the motion process of the driving rod 7, at first, the force of the driving rod 7 is transmitted to the sealing plate 5 by the spring 20, the sealing plate 5 is driven to move along the valve port axis of the valve body 1 and close to the valve port, and when the end face of the sealing plate 5 is tightly propped against the valve port, the sealing of the valve body 1 is completed under the action of the sealing ring 21. And thirdly, flow regulation. When the flow needs to be adjusted, on the basis of the second step, the second rotating shaft 4 is further rotated in the same direction, the cam 6 drives the driving rod 7 to continue to advance in the same direction, the spring 20 is compressed in the advancing process of the driving rod 7, so that the driving rod 9 is tightly propped against the circular plate 9 and drives the circular plate 9 to advance, the first sliding block 12 on the circular plate 9 advances along the second sliding block 15 under the action of the driving rod 7, and the sealing plate 5 is opened with a flow hole with the same area as the circular plate 9. At this time, if the flow rate needs to be further increased, the second rotating shaft 4 only needs to be rotated in the same direction. The second rotating shaft 4 continues to rotate, the driving rod 7 continues to move, when the first sliding block 12 slides to be in contact with the end face of the first sliding groove 13, the first annular plate 10 moves forward under the driving of the first sliding block 12 and the first sliding groove 13, the area of the flow hole of the sealing plate 5 is increased, the increased area is the area of the first annular plate 10, and if the flow needs to be increased, the operation is the same as before, which is not repeated herein. The operation of opening the sealing plate 5 is to rotate the second rotating shaft 4 reversely to the circular plate 9 to retract the sealing plate 5, and then to rotate the first rotating shaft 3 reversely. The maximum flow of the pump valve is realized by rotating the first rotating shaft 3 when the axis of the sealing plate 5 is vertical to the axis of the valve port of the valve body 1. Here, the first step is aimed at aligning the sealing plate 5 with the valve port of the valve body 1. The second step is aimed at sealing the pump valve, and it is completed when the pump valve does not need to be opened. The third and fourth steps are aimed at adjusting the flow rate by means of the cam 6, the driving rod 7, the circular plate 9, the first ring plate 10 and the second ring plate 11.
Example 2:
as shown in fig. 1, in this embodiment, in addition to embodiment 1, the sealing plate 5 is provided with a plurality of balance holes 22 horizontally penetrating through the sealing plate 5. The valve body 1 is provided with a left cavity 33 inside, and when the sealing plate 5 is pressed on the valve port of the valve body 1, a balance cavity 32 is formed between the surface of the sealing plate 5 far away from the valve port and the valve sleeve 2. The balancing hole 22 communicates with the left chamber 33 and the balancing chamber 32 in the valve. By utilizing the characteristics of fluid transmission, the acting forces of the fluid medium borne by the valve sleeve 2 and the closing plate 5 are correspondingly balanced. This greatly reduces the opening and closing torque required by the pump valve. Therefore, the pump valve can be suitable for the working conditions of bidirectional medium and high ultrahigh pressure and medium and large overlarge drift diameter and can be easily operated manually and automatically.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. A pump valve convenient for flow regulation is characterized by comprising a valve body, a valve sleeve, a first rotating shaft, a second rotating shaft, a circular sealing plate, a cam and a driving rod, wherein the first rotating shaft is arranged in the valve body, the upper part of the first rotating shaft is rotatably connected with the upper part of the valve body, the upper end of the first rotating shaft extends out of the valve body, the first rotating shaft is of a hollow sleeve structure, the second rotating shaft is sleeved in the first rotating shaft, the upper end of the second rotating shaft extends out of the upper end of the first rotating shaft, the lower end of the second rotating shaft extends out of the lower end of the first rotating shaft, the valve sleeve is arranged in the valve body, the upper end of the valve sleeve is fixedly connected with the first rotating shaft, the lower end of the valve sleeve is rotatably connected with the extending end of the second rotating shaft, a mounting hole is formed in one side, away from the second rotating shaft, of the sealing plate is arranged in a sliding manner with the, the axis of the sealing plate is coaxial with the valve sleeve;
the sealing plate is composed of a coaxial circular plate, a first annular plate and a second annular plate, a plurality of first sliding blocks are uniformly fixed at the edge of the circular plate along the circumferential direction, a plurality of first sliding grooves corresponding to the first sliding blocks are formed in the inner circle of the first annular plate along the circumferential direction, a first sliding box is fixedly connected in each first sliding groove, the first sliding blocks are slidably arranged in the first sliding boxes, and a plurality of second sliding blocks are uniformly fixed on the outer circle of the first annular plate along the circumferential direction; a plurality of second sliding grooves corresponding to the second sliding blocks are axially formed in the inner circle of the second ring plate, a second sliding box is fixedly connected in each second sliding groove, and the second sliding blocks are slidably arranged in the second sliding boxes; the sealing plate is fixedly connected with an auxiliary plate outside, and one surface of the auxiliary plate is fixedly connected with the end surfaces of the first sliding box and the second sliding box which are positioned on the same diameter along the length direction;
a driving through hole is formed in the center of the boosting plate, the cam is fixedly arranged on the second rotating shaft and corresponds to the driving through hole, one end of the driving rod is in transmission connection with the cam, the other end of the driving rod penetrates out of the valve sleeve, the penetrating end of the driving rod extends out of the driving through hole, a spring is sleeved outside the driving rod, and two ends of the spring are respectively and fixedly connected with the boosting plate and the driving rod;
and a sealing ring is arranged on one surface of the sealing plate, which is far away from the first rotating shaft.
2. The valve as claimed in claim 1, wherein the sealing plate has a plurality of balance holes formed therein and extending horizontally therethrough.
3. The pump valve convenient for flow regulation according to claim 1, wherein the cam is provided with a third sliding groove along a circumferential direction thereof, a sliding column is slidably disposed in the third sliding groove, and one end of the driving rod is fixedly connected with the sliding column through a pin.
4. The valve as claimed in claim 1, wherein a balance seal assembly is disposed between the valve housing and the closing plate, and a driven seal assembly is disposed between the driving rod and the valve housing.
5. The pump valve convenient for flow regulation according to claim 1, wherein a first hand wheel is fixedly arranged at the upper end of the first rotating shaft, and a second hand wheel is fixedly arranged at the upper end of the second rotating shaft.
6. The pump valve facilitating flow adjustment according to claim 1, wherein a lower end of the second rotating shaft is rotatably connected to a bottom of the valve body through a first bearing.
7. A pump valve for facilitating flow regulation according to claim 6, wherein a plurality of second bearings are coaxially disposed between the first rotating shaft and the second rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920809357.2U CN209990926U (en) | 2019-05-30 | 2019-05-30 | Make things convenient for flow control's pump valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920809357.2U CN209990926U (en) | 2019-05-30 | 2019-05-30 | Make things convenient for flow control's pump valve |
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| Publication Number | Publication Date |
|---|---|
| CN209990926U true CN209990926U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920809357.2U Active CN209990926U (en) | 2019-05-30 | 2019-05-30 | Make things convenient for flow control's pump valve |
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| CN (1) | CN209990926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032326A (en) * | 2020-08-21 | 2020-12-04 | 浙江大学 | Segmented piston valve core structure, assembly, valve and method thereof |
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2019
- 2019-05-30 CN CN201920809357.2U patent/CN209990926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032326A (en) * | 2020-08-21 | 2020-12-04 | 浙江大学 | Segmented piston valve core structure, assembly, valve and method thereof |
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