CN220849969U - Diaphragm chamber discharging mechanism of volumetric pump - Google Patents
Diaphragm chamber discharging mechanism of volumetric pump Download PDFInfo
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- CN220849969U CN220849969U CN202322808686.4U CN202322808686U CN220849969U CN 220849969 U CN220849969 U CN 220849969U CN 202322808686 U CN202322808686 U CN 202322808686U CN 220849969 U CN220849969 U CN 220849969U
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- valve
- seat
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- spring
- diaphragm chamber
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- 230000007246 mechanism Effects 0.000 title claims abstract description 15
- 238000007599 discharging Methods 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The application relates to the technical field of volumetric pumps, in particular to a diaphragm chamber discharging mechanism of a volumetric pump, which comprises a pump body and a discharging valve, wherein the discharging valve is provided with a valve shell, a valve seat and a spring seat, one end of the valve shell is fixedly connected with the valve seat, the other end of the valve shell is fixedly connected with the spring seat, a valve core and an elastic piece are arranged in the valve shell, the valve core is in sealing contact with the valve seat under the action of the elastic piece, the discharging valve is in sealing connection with a discharging hole of the pump body, the top end of the valve core is fixedly connected with a guide rod, a guide seat for slurry circulation is arranged in the valve seat, the center of the guide seat is provided with a positioning hole for the guide rod to be matched, one end of the elastic piece is buried in a skirt part and abuts against the valve seat, the other end of the elastic piece is connected with the spring seat, the distance between the bottom end of the skirt part and the spring seat is slightly smaller than the length of the guide rod above the guide seat, so as to control the pushing stroke of the valve core, the guide rod is prevented from leaking from the positioning hole, and the problem that the guide rod is not strictly closed is even broken is solved.
Description
Technical Field
The application relates to the technical field of volumetric pumps, in particular to a discharge mechanism of a diaphragm chamber of a volumetric pump.
Background
At present, the positive displacement pump has wide application in the industries of chemical industry, mineral products and the like in China. The valve mainly relies on the back and forth movement of a diaphragm to change the volume of a pump cavity so as to realize the purpose of sucking and discharging fluid media, when the valve is operated, a plunger of a diaphragm pump is driven by mechanical power equipment to do reciprocating movement so as to drive hydraulic oil to drive the diaphragm back and forth, thereby achieving the purpose of reciprocally changing the volume in a working cavity.
Disclosure of utility model
The application aims to solve the technical problem of providing a diaphragm chamber discharging mechanism of a volumetric pump, wherein a valve core is provided with a skirt part for controlling the pushing stroke of the valve core, so that the guide rod is prevented from leaking out of a positioning hole, and the problem that the valve core is not tightly closed and even the guide rod is broken is solved.
In order to solve the problems, the following technical scheme is provided:
The utility model provides a displacement pump diaphragm room discharge mechanism, it includes the pump body, is equipped with the bleeder valve on the export of the pump body, the bleeder valve includes valve casing, disk seat and spring holder, the one end fixed connection disk seat of valve casing, the valve casing other end fixed connection spring holder is equipped with case and elastic component in the valve casing, the case with disk seat sealing contact under the effect of elastic component, the bleeder valve with the discharge gate sealing connection of the pump body, the bottom fixedly connected with of case and the skirt that the spring holder moved and offset, the top fixedly connected with guide bar of case, be equipped with the guide holder that is used for the thick liquid circulation in the disk seat, be equipped with in the center of guide holder and be used for guide bar complex locating hole, the one end of elastic component buries in the skirt and supports the case on the disk seat, and the other end is connected with the spring holder, and when the case supported on the disk seat, the interval of skirt bottom and spring holder is slightly less than the length that is located the guide bar above the guide holder.
By adopting the technical scheme: in the working process, the valve core is pushed to be close to the spring seat, and because the distance between the bottom end of the skirt part and the spring seat is slightly smaller than the length of the guide rod positioned above the guide seat, the skirt part can be propped against the spring seat at first, and at the moment, the top end of the guide rod is still partially matched with the positioning hole, the valve core can still be guided, and the stability of the valve core movement is greatly improved.
The valve core comprises a valve face and a back plate, a sealing ring is arranged between the valve face and the back plate, the outer diameter of the sealing ring is larger than that of the valve face and the back plate, an opening at the inner side of the valve seat is a conical opening, the edge of the valve face is provided with a conical surface which is matched with the conical opening, and the valve core is in sealing contact with the valve seat through the sealing ring.
By adopting the technical scheme: because the valve face is the conical surface, when the elastic component supports the valve core on the valve seat opening, the self-positioning function can be obtained, and then the valve core is in contact sealing with the valve seat through the sealing ring, so that the effect is good.
The guide rod and the valve face are integrally formed, the skirt is a sleeve shell, the top end of the skirt is fixedly connected with the back plate, and the guide seat is in a hand wheel shape.
By adopting the technical scheme: the strength of the guide rod is improved, the guide rod and the valve face are matched with each other, and the accuracy of the guide rod and the valve face in the use process is guaranteed.
The bottom integrated into one piece of valve face connects the lower valve rod, the spring holder includes annular basal disc, be connected with the round platform on the basal disc, the top of round platform has the guiding hole, and the side of round platform is equipped with a plurality of flow holes that are used for the thick liquids to flow, the one end slidable mounting of lower valve rod is in the guiding hole.
By adopting the technical scheme: the lower valve rod is matched with the spring seat, so that the accuracy of valve core displacement is further improved, stable guide of the valve core is provided in an auxiliary mode when the skirt portion is prevented from being damaged or the guide rod is invalid, and the using effect is improved.
Sealing gaskets are arranged between the valve seat and the discharge hole of the pump body and between the discharge valve and the spring seat.
By adopting the technical scheme: the leakage of the discharge valve after being installed with the discharge hole and the spring seat is avoided, and the installation quality is ensured.
The spring seat, the valve shell and the valve seat are sequentially fixed on the end face of the pump body outlet through bolt rods.
By adopting the technical scheme: the installation structure is simple, and the disassembly is convenient.
The elastic piece is a cylindrical spring.
By adopting the technical scheme: the cylindrical spring can realize the sealing function of the valve core and the valve seat, and has simple structure and low cost.
By adopting the scheme, the method has the following advantages:
1. In the application, the valve core is pushed to approach the spring seat, and the distance between the bottom end of the skirt part and the spring seat is slightly smaller than the length of the guide rod positioned above the guide seat, so that the skirt part can be propped against the spring seat at first, and at the moment, the top end of the guide rod is still partially matched with the positioning hole, so that the valve core can be still guided, and the stability of the valve core in movement is greatly improved.
2. In the application, because the valve surface is a conical surface, when the valve core is propped against the valve seat opening by the elastic piece, the self-positioning function can be obtained, and the valve seat is contacted and sealed by the sealing ring, so that the effect is good.
Drawings
FIG. 1 is a cross-sectional view of a diaphragm chamber discharge mechanism of a volumetric pump of the present application;
Fig. 2 is a perspective view of a spring seat of a displacement pump diaphragm chamber discharge mechanism of the present application.
Reference numerals illustrate: 1. a pump body; 2. a discharge valve; 21. a valve housing; 22. a valve seat; 23. a spring seat; 231. a base plate; 232. round bench; 2321. a flow hole; 2322. a guide hole; 24. a valve core; 241. a valve face; 2411. a guide rod; 2412. a lower valve rod; 242. a back plate; 243. a seal ring; 3. a skirt portion; 4. a guide seat; 5. an elastic member; 6. a sealing gasket; 7. a bolt rod; 8. and a discharging pipe.
Detailed Description
The utility model is described below with reference to the drawings and examples.
Examples
The discharge valve 2 comprises a valve housing 21, a valve seat 22 and a spring seat 23, one end of the valve housing 21 is fixedly connected with the valve seat 22, the other end of the valve housing 21 is fixedly connected with the spring seat 23, a valve core 24 and an elastic piece 5 are arranged in the valve housing 21, the valve core 24 is in sealing contact with the valve seat 22 under the action of the elastic piece 5, the discharge valve 2 is in sealing connection with a discharge port of the pump body 1, the bottom end of the valve core 24 is fixedly connected with a skirt 3 which is in moving contact with the spring seat 23, namely, the valve core 24 moves downwards to drive the skirt 3 to move downwards after moving downwards, so that the skirt 3 is in contact with the top of the spring seat 23, the top end of the valve core 24 is fixedly connected with a guide rod 2411, a guide seat 4 for slurry circulation is arranged in the valve seat 22, a positioning hole for the cooperation of the guide rod 2411 is formed in the center of the guide seat 4, one end of the elastic piece 5 is buried in the skirt 3 and abuts against the valve seat 22, the other end of the valve core 24 is connected with the valve seat 23, and when the valve core 24 abuts against the valve seat 22, the bottom end is slightly smaller than the length of the guide rod 2411 above the guide seat 4. In the working process, the valve core 24 is pushed to approach the spring seat 23, and the distance between the bottom end of the skirt portion 3 and the spring seat 23 is slightly smaller than the length of the guide rod 2411 above the guide seat 4, so that the skirt portion 3 can be propped against the spring seat 23 first, at the moment, the top end of the guide rod 2411 still has part matched with the positioning hole, the valve core 24 can still be guided, and the stability of the movement of the valve core 24 is greatly improved.
Further, in this embodiment, the valve core 24 includes a valve surface 241 and a back plate 242, a sealing ring 243 is installed between the valve surface 241 and the back plate 242, the outer diameter of the sealing ring 243 is larger than the outer diameters of the valve surface 241 and the back plate 242, the opening on the inner side of the valve seat 22 is a tapered opening, the edge of the valve surface 241 is a tapered surface adapted to the tapered opening, and when the valve core 24 abuts against the opening of the valve seat 22 due to the tapered surface 241, the elastic member can achieve a self-positioning function, and further contacts and seals with the valve seat 22 through the sealing ring 243, and the valve core 24 contacts with the valve seat 22 through the sealing ring 243 in a sealing manner, so that the sealing effect is good.
Further, as shown in fig. 1, the guide rod 2411 is integrally formed with the valve surface 241, the skirt 3 is a sleeve, the top end of the skirt is fixedly connected with the back plate 242, the guide seat 4 is in a shape of a hand wheel, the bottom end of the valve surface 241 is integrally formed and connected with the lower valve rod 2412, the guide rod 2411 is matched with the valve surface 241, and the accuracy of the guide rod 2411 and the valve surface 241 in the use process is ensured. The above structure can improve the strength and stability of the guide rod 2411 and the lower valve rod 2412, and in addition, as shown in fig. 2, the spring seat 23 includes an annular base plate 231, a circular table 232 is connected to the base plate 231, a guide hole 2322 is formed at the top end of the circular table 232, a plurality of flow holes 2321 for flowing slurry are formed on the side surface of the circular table 232, and one end of the lower valve rod 2412 is slidably mounted in the guide hole 2322. The lower valve rod 2412 cooperates with the spring seat 23, which can further improve the accuracy of the displacement of the valve core 24, prevent the skirt 3 from being damaged or assist in providing stable guide for the valve core 24 when the guide rod 2411 fails, and improve the use effect.
Further, in order to avoid leakage after the discharge valve 2 is installed with the discharge port and the spring seat 23, installation quality is guaranteed, and the sealing gasket 6 is installed between the valve seat 22 and the discharge port of the pump body 1 and between the discharge valve 2 and the spring seat 23.
In this embodiment, a plurality of through holes are uniformly distributed on the spring seat 23, the valve housing 21 and the valve seat 22, and the through holes can correspondingly match and then penetrate into the bolt rod 7, a plurality of bolt holes matched with the bolt rod 7 are formed in the end face of the outlet of the pump body 1, the bolt rod 7 is sequentially fixed on the end face of the outlet of the pump body 1, when the discharge valve 2 is installed on the outlet, the spring seat 23, the valve housing 21 and the valve seat 22 are assembled, the sealing gasket 6 is installed between the valve seat 22 and the discharge hole of the pump body 1, the discharge valve 2 and the spring seat 23, and then the bolt rod 7 sequentially penetrates into the corresponding through holes of the spring seat 23, the valve housing 21 and the valve seat 22 and is connected with the bolt holes on the outlet of the pump body 1, so that the discharge valve 2 can be installed on the pump body 1, the installation structure is simple, and the disassembly is convenient.
In the above embodiment, the cylindrical spring is adopted as the elastic member 5, so that the sealing function of the valve core 24 and the valve seat 22 can be realized, and the structure is simple and the cost is low.
The working process comprises the following steps: as shown in fig. 1, the bottom end of the spring seat 23 is connected to the discharging pipe 8, the valve core 24 is pushed to move downward by the gas/liquid pressure generated by one end of the pump body 1, the gas/liquid fluid flows out from the flow hole 2321 of the spring seat 23, after the gas/liquid pressure is released, the valve core 24 is jacked up by the reset of the spring, the valve core 24 props against the opening of the valve seat 22 to form a seal, and the discharging valve 2 stops discharging.
While the utility model has been described in conjunction with specific embodiments, it will be apparent to those skilled in the art that these descriptions are intended to be illustrative, and not limiting, of the scope of the utility model, and that various changes and modifications may be made by those skilled in the art in light of the spirit and principles of the utility model, which are also within the scope of the utility model.
Claims (7)
1. The utility model provides a displacement pump diaphragm room discharge mechanism, including the pump body (1), be equipped with discharge valve (2) on the export of pump body (1), a serial communication port, discharge valve (2) include valve casing (21), disk seat (22) and spring holder (23), one end fixed connection disk seat (22) of valve casing (21), the other end fixed connection spring holder (23) of valve casing (21), be equipped with case (24) and elastic component (5) in valve casing (21), case (24) and disk seat (22) sealing contact under the effect of elastic component (5), discharge valve (2) and the discharge gate sealing connection of pump body (1), the bottom fixedly connected with of case (24) and skirt (3) that offsets with disk seat (23) motion, the top fixedly connected with guide bar (2411) of case (24), be equipped with in disk seat (22) guide holder (4) that are used for the thick liquid circulation, the locating hole that is used for guide bar (2411) complex is seted up at the center of guide holder (4), the one end of elastic component (5) buries in skirt (3) and with case (24) and with other end and support (24) on disk seat (23) when supporting on valve holder (24), the distance between the bottom end of the skirt part (3) and the spring seat (23) is slightly smaller than the length of the guide rod (2411) above the guide seat (4).
2. A displacement pump diaphragm chamber discharge mechanism according to claim 1, wherein the valve core (24) comprises a valve surface (241) and a back plate (242), a sealing ring (243) is arranged between the valve surface (241) and the back plate (242), the outer diameter of the sealing ring (243) is larger than the outer diameters of the valve surface (241) and the back plate (242), an opening on the inner side of the valve seat (22) is a conical opening, the edge of the valve surface (241) is provided with a conical surface corresponding to the conical opening, and the valve core (24) is in sealing contact with the valve seat (22) through the sealing ring (243).
3. A diaphragm chamber discharge mechanism for a volumetric pump according to claim 2, wherein the guide rod (2411) is integrally formed with the valve surface (241), the skirt (3) is a sleeve and the top end thereof is fixedly connected with the back plate (242), and the guide seat (4) is in the shape of a hand wheel.
4. A diaphragm chamber discharging mechanism for a volumetric pump as claimed in claim 3, wherein the bottom end of the valve surface (241) is connected with a lower valve rod (2412), the spring seat (23) comprises an annular base plate (231), a round table (232) is connected to the base plate (231), a guide hole (2322) is formed in the top end of the round table (232), a plurality of circulation holes (2321) for slurry to flow are formed in the side surface of the round table (232), and one end of the lower valve rod (2412) is slidably mounted in the guide hole (2322).
5. A displacement pump diaphragm chamber discharge mechanism according to any one of claims 1 to 4, wherein a gasket (6) is arranged between the valve seat (22) and the discharge port of the pump body (1), and between the discharge valve (2) and the spring seat (23).
6. A diaphragm chamber discharge mechanism for a volumetric pump according to claim 5, wherein the spring seat (23), the valve housing (21) and the valve seat (22) are sequentially fixed to the end face of the outlet of the pump body (1) by means of a bolt rod (7).
7. A displacement pump diaphragm chamber discharge mechanism according to claim 6, wherein the resilient member (5) is a cylindrical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322808686.4U CN220849969U (en) | 2023-10-19 | 2023-10-19 | Diaphragm chamber discharging mechanism of volumetric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322808686.4U CN220849969U (en) | 2023-10-19 | 2023-10-19 | Diaphragm chamber discharging mechanism of volumetric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220849969U true CN220849969U (en) | 2024-04-26 |
Family
ID=90775891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322808686.4U Active CN220849969U (en) | 2023-10-19 | 2023-10-19 | Diaphragm chamber discharging mechanism of volumetric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220849969U (en) |
-
2023
- 2023-10-19 CN CN202322808686.4U patent/CN220849969U/en active Active
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