CN218325115U - Novel slot valve type plunger metering pump - Google Patents
Novel slot valve type plunger metering pump Download PDFInfo
- Publication number
- CN218325115U CN218325115U CN202222179802.6U CN202222179802U CN218325115U CN 218325115 U CN218325115 U CN 218325115U CN 202222179802 U CN202222179802 U CN 202222179802U CN 218325115 U CN218325115 U CN 218325115U
- Authority
- CN
- China
- Prior art keywords
- pump
- slot valve
- rod
- main body
- metering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a novel slot valve type plunger metering pump, which comprises a slot valve plunger pump metering rod and a slot valve plunger pump sleeve, wherein the slot valve plunger pump metering rod is sleeved in the slot valve plunger pump sleeve, the slot valve plunger pump metering rod comprises a rod connecting part at the upper end of a rod and a rod main body at the lower end of the rod, the rod main body is in a cylinder shape, and a slot valve is arranged on the rod main body; the slot valve plunger pump sleeve comprises a pump sleeve main body, a liquid inlet, a liquid outlet and a pump sleeve connecting piece at the lower end, a cylindrical pump sleeve cavity is formed inside the pump sleeve main body, and the liquid inlet and the liquid outlet are respectively through holes transversely formed in different cross sections of the pump sleeve main body. The utility model has the advantages of proper space layout, increased sealing area, more reliable sealing surface, prolonged service life of the filling pump and improved filling metering precision; the bubble aggregation phenomenon is not generated any more, and the filling metering deviation is reduced.
Description
Technical Field
The invention belongs to the technical field of metering pumps, and particularly relates to a novel slot valve type plunger metering pump.
Background
The metering pump is one of fluid conveying machines, is developed by utilizing the characteristic of fixed flow of a reciprocating pump, and is mainly applied to occasions requiring accurate liquid conveying to certain equipment or conveying a plurality of kinds of liquid according to accurate proportion. The plunger metering pump is mainly used for filling and metering fluids such as liquid, paste and the like, and is used for precise filling and metering in the industries such as medicines, cosmetics, foods, beverages, chemical engineering, medical treatment and the like.
Currently, the slot valve plunger pump assembly on the market consists of two main parts: one is a precisely machined plunger rod with a machined slot valve; the other is a plunger pump sleeve which is precisely processed and has excellent cylindricity and a smooth surface. The cavity of the plunger pump sleeve is provided with two openings which are respectively a liquid inlet and a liquid outlet. When the slot valve is aligned with the liquid inlet, the volume of the cavity of the plunger pump is increased to form vacuum, and liquid is sucked; the liquid outlet is aligned with the slot valve by rotating a certain angle, and the sucked liquid is extruded and discharged, so that constant-volume metering filling is realized.
The inlet and the liquid outlet of slot valve formula plunger pump among the prior art are on same circumference plane, and the inlet becomes certain contained angle with the liquid outlet, and there is certain structural defect in this kind of design:
(1) When the required filling metering volume is very small, the diameter ratio of the groove valve type plunger pump is smaller, the distance between the liquid inlet and the liquid outlet on the plunger rod is small, and the sealing surface is too small.
(2) Two openings of a liquid inlet and a liquid outlet on the same section of the plunger rod are easy to cause abrasion, and the service life of the product is shortened.
(3) The liquid leakage phenomenon can appear after the machine is stopped, and the filling metering precision is influenced.
(4) The liquid inlet and the liquid outlet are on the same circumferential section, so that the phenomenon of bubble accumulation is easily generated in the pumping process, and a large bubble is occasionally discharged, so that the filling metering deviation is overlarge.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a novel slot valve type plunger metering pump, which comprises a slot valve plunger pump metering rod and a slot valve plunger pump sleeve, wherein the slot valve plunger pump metering rod is sleeved in the slot valve plunger pump sleeve, the slot valve plunger pump metering rod comprises a rod connecting part at the upper end of a rod and a rod main body at the lower end of the rod, the rod main body is in a cylinder shape, and a slot valve is arranged on the rod main body; the slot valve plunger pump sleeve comprises a pump sleeve main body, a liquid inlet, a liquid outlet and a pump sleeve connecting piece at the lower end, a cylindrical pump sleeve cavity is formed inside the pump sleeve main body, and the liquid inlet and the liquid outlet are respectively through holes transversely formed in different cross sections of the pump sleeve main body.
Preferably, the liquid inlet and the liquid outlet are angularly distributed in cross-section.
Preferably, the liquid inlet and the liquid outlet are angled in cross-section at any angle between 45 degrees and 180 degrees.
Preferably, the angle of the liquid inlet and the liquid outlet in cross section is 45 degrees, 60 degrees, 90 degrees, 120 degrees, 135 degrees or 180 degrees.
Preferably, the liquid inlet and the liquid outlet on the pump sleeve main body are sequentially arranged from bottom to top.
Preferably, the rod connecting part is fixedly connected with the rod main body, and the pump sleeve main body is fixedly connected with the pump sleeve connecting piece.
Preferably, the liquid inlet and the liquid outlet on the pump sleeve main body respectively extend outwards and transversely to form a liquid inlet hole column and a liquid outlet hole column, a transverse through hole in the liquid inlet hole column is communicated with the liquid inlet, and a transverse through hole in the liquid outlet hole column is communicated with the liquid outlet.
Preferably, the rod main body is in a cylinder shape with a smooth surface, the slot valve is arranged at the lower half section of the rod main body, and the slot valve is arranged along the axial direction of the rod main body; the surface of a pump sleeve cavity in the slot valve plunger pump sleeve is smooth.
Preferably, the rod connection and the pump housing connection are each connected to a drive component of the filling machine.
Preferably, the drive means of the filling machine comprises a rotary drive means and a linear elevation drive means; the rod connecting part is connected with a rotary driving part of the filling machine, and the pump sleeve connecting part is connected with a linear lifting driving part of the filling machine.
The beneficial effects of this utility do: the liquid inlet and the liquid outlet are arranged on the groove valve plunger pump sleeve in a staggered manner, are arranged on the circumferential surfaces at different heights, and form a certain angle, so that the spatial layout is proper, the sealing area is increased, and a more reliable sealing surface is obtained; the phenomenon that two holes are not sealed due to abrasion and scratch on the same plane is avoided, and the service life of the filling pump is prolonged; the phenomenon of liquid leakage can not occur after the machine is stopped, and the precision of filling and metering is improved; the bubble aggregation phenomenon is not generated any more, and the filling metering deviation is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a metering rod of a slot valve plunger pump of the present invention.
Fig. 2 is a schematic structural diagram of the slot valve plunger pump sleeve of the present invention.
Fig. 3 is a schematic top view of the liquid inlet and the liquid outlet of the present invention at an angle of 180 degrees.
Fig. 4 is a schematic top view of the liquid inlet and the liquid outlet of the present invention at an angle of 90 degrees.
Fig. 5 is a schematic top view of the liquid inlet and the liquid outlet of the present invention at an angle of 120 degrees.
Reference numerals: the metering rod 1 of the slot valve plunger pump, the rod connecting part 11, the rod main body 12 and the slot valve 13;
the liquid pump comprises a slot valve plunger pump sleeve 2, a pump sleeve main body 21, a liquid inlet 22, a liquid outlet 23, a pump sleeve connecting piece 24, a pump sleeve cavity 25, a liquid inlet hole column 26 and a liquid outlet hole column 27.
Detailed Description
The present invention will be described in more detail with reference to the following examples and the accompanying drawings.
Example 1
The utility model provides a novel slot valve formula plunger measuring pump, includes slot valve plunger pump metering rod 1 and slot valve plunger pump cover 2, and slot valve plunger pump metering rod 1 embolias inside slot valve plunger pump cover 2.
The slot valve plunger pump metering rod 1 comprises a rod connecting part 11 at the upper end of a rod and a rod main body 12 at the lower end of the rod, and the rod connecting part 11 is fixedly connected with the rod main body 12.
The rod body 12 is cylindrical, the rod body 12 is vertically arranged, and the surface of the rod body is smooth and clean.
The lower half section of the rod main body 12 is provided with a slot valve 13, and the slot valve 13 is arranged along the axial direction of the rod main body 12; the surface of a pump sleeve cavity 25 in the slot valve plunger pump sleeve 2 is smooth.
The slot valve plunger pump sleeve 2 comprises a pump sleeve main body 21, a liquid inlet 22, a liquid outlet 23 and a pump sleeve connecting piece 24 at the lower end. The pump sleeve main body 21 is fixedly connected with the pump sleeve connecting piece 24. The surface of a pump sleeve cavity 25 in the slot valve plunger pump sleeve 2 is smooth.
The rod main body 12 is sleeved in the pump sleeve cavity 25, and a sealing end is formed between the smooth surface of the rod main body 12 and the pump sleeve main body 21; a cavity is formed between the slot valve 13 on the rod main body 12 and the pump housing main body 21.
A cylindrical pump jacket cavity 25 is formed inside the pump jacket main body 21, and the liquid inlet 22 and the liquid outlet 23 are respectively through holes transversely arranged on different cross sections of the pump jacket main body 21.
The liquid inlet 22 and the liquid outlet 23 on the pump sleeve main body 21 are at different heights, and the liquid inlet 22 and the liquid outlet 23 are sequentially arranged from bottom to top.
A liquid inlet hole column 26 and a liquid outlet hole column 27 respectively extend outwards and transversely from the liquid inlet 22 and the liquid outlet 23 on the pump sleeve main body 21, a transverse through hole in the liquid inlet hole column 26 is communicated with the liquid inlet 22, and a transverse through hole in the liquid outlet hole column 27 is communicated with the liquid outlet 23.
In this embodiment, the angle projected on the cross section between the liquid inlet 22 and the liquid outlet 23 is 180 degrees.
The driving component of the filling machine comprises a rotary driving component and a linear lifting driving component; the rod connection 11 is connected to a rotary drive unit of the filling machine, and the pump housing connection 24 is connected to a linear lift drive unit of the filling machine.
The rotary driving part and the linear lifting driving part of the filling machine respectively drive the rod connecting part 11 and the pump sleeve connecting part 24 to move, so that the metering rod 1 of the slot valve plunger pump and the pump sleeve 2 of the slot valve plunger pump have relative rotation angle movement and upper and lower rod movement, and the filling metering constant volume is realized.
The switch is turned on, the rotary driving part of the filling machine is started to rotate, and the metering rod 1 of the slot valve plunger pump is driven to rotate; the linear lifting driving part of the filling machine starts to lift and drives the slot valve plunger pump sleeve 2 to move up and down.
When the slot valve 13 on the slot valve plunger pump metering rod 1 is aligned with the liquid inlet 22, the slot valve plunger pump metering rod 1 and the slot valve plunger pump sleeve 2 move in a relative stretching mode, the volume of the containing cavity between the rod main body 12 and the pump sleeve main body 21 is increased, the air pressure is reduced, and liquid enters the pump sleeve cavity 25 from the liquid inlet 22.
The rotary driving part of the filling machine drives the slot valve plunger pump measuring rod 1 to continuously rotate, and the linear lifting driving part moves up and down to enable the slot valve plunger pump measuring rod 1 and the slot valve plunger pump sleeve 2 to move up and down relatively.
When the slot valve 13 is aligned with the liquid outlet 23, the slot valve plunger pump metering rod 1 and the slot valve plunger pump sleeve 2 perform relative compression movement to extrude the liquid in the pump sleeve cavity 25, so that constant-volume metering filling is realized.
Example 2
In this embodiment, on the basis of embodiment 1, the angle between the upper liquid outlet 23 and the lower liquid inlet 22 is 90 degrees.
Example 3
In this embodiment, on the basis of embodiment 1, the angle between the upper liquid outlet 23 and the lower liquid inlet 22 is 120 degrees.
Claims (10)
1. A novel slot valve type plunger metering pump comprises a slot valve plunger pump metering rod (1) and a slot valve plunger pump sleeve (2), wherein the slot valve plunger pump metering rod (1) is sleeved in the slot valve plunger pump sleeve (2), the slot valve plunger pump metering rod (1) comprises a rod connecting part (11) at the upper end of a rod and a rod main body (12) at the lower end of the rod, the rod main body (12) is cylindrical, and a slot valve (13) is arranged on the rod main body (12); the plunger pump sleeve is characterized in that the slot valve plunger pump sleeve (2) comprises a pump sleeve main body (21), a liquid inlet (22), a liquid outlet (23) and a pump sleeve connecting piece (24) at the lower end, a cylindrical pump sleeve cavity (25) is formed inside the pump sleeve main body (21), and the liquid inlet (22) and the liquid outlet (23) are through holes which are transversely formed in different cross sections of the pump sleeve main body (21) respectively.
2. A new metering pump of the slit valve type with plunger type according to claim 1, characterized in that the inlet (22) and the outlet (23) are angularly distributed in cross section.
3. A new metering pump of the slit valve type with plunger according to claim 2, characterized in that the angle of the inlet (22) and outlet (23) in cross section is any angle between 45 degrees and 180 degrees.
4. A new metering pump of the slit valve type with plunger according to claim 3, characterized in that the angle of the inlet (22) and the outlet (23) in cross section is 45 degrees, 60 degrees, 90 degrees, 120 degrees, 135 degrees or 180 degrees.
5. A new type of slot valve plunger metering pump as set forth in claim 4, characterized in that the liquid inlet (22) and the liquid outlet (23) of the pump housing main body (21) are arranged in sequence from bottom to top.
6. A new type of slot valve plunger metering pump as set forth in claim 5, characterized in that the rod connecting portion (11) is fixedly connected to the rod main body (12), and the pump housing main body (21) is fixedly connected to the pump housing connecting member (24).
7. A novel slot valve type plunger metering pump as claimed in claim 6, wherein the liquid inlet (22) and the liquid outlet (23) on the pump sleeve main body (21) are respectively provided with a liquid inlet hole column (26) and a liquid outlet hole column (27) which extend outwards and transversely, the transverse through hole inside the liquid inlet hole column (26) is communicated with the liquid inlet (22), and the transverse through hole inside the liquid outlet hole column (27) is communicated with the liquid outlet (23).
8. A new type of slot valve type plunger metering pump as set forth in claim 7, characterized in that the rod main body (12) has a smooth-surfaced cylindrical shape, the slot valve (13) is opened at the lower half section of the rod main body (12), and the slot valve (13) is disposed along the axial direction of the rod main body (12); the surface of a pump sleeve cavity (25) in the slot valve plunger pump sleeve (2) is smooth.
9. A new metering pump of the slot valve type with plunger piston type according to claim 8, characterized in that the stem connection part (11) and the pump housing connection part (24) are connected with the driving part of the filling machine, respectively.
10. A novel slot valve plunger metering pump as set forth in claim 9 wherein the drive means of the filler includes a rotary drive means and a linear lift drive means; the rod connecting part (11) is connected with a rotary driving part of the filling machine, and the pump sleeve connecting part (24) is connected with a linear lifting driving part of the filling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222179802.6U CN218325115U (en) | 2022-08-18 | 2022-08-18 | Novel slot valve type plunger metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222179802.6U CN218325115U (en) | 2022-08-18 | 2022-08-18 | Novel slot valve type plunger metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218325115U true CN218325115U (en) | 2023-01-17 |
Family
ID=84883209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222179802.6U Active CN218325115U (en) | 2022-08-18 | 2022-08-18 | Novel slot valve type plunger metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218325115U (en) |
-
2022
- 2022-08-18 CN CN202222179802.6U patent/CN218325115U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162434B (en) | Double-cylinder plunger pump | |
| US4479759A (en) | Valveless, positive displacement pump | |
| CN218325115U (en) | Novel slot valve type plunger metering pump | |
| US6276907B1 (en) | Hydraulically driven diaphragm pump | |
| CN114215715A (en) | Metering pump | |
| CN108266372B (en) | Valve type flow distribution radial plunger emulsion pump | |
| CN202152718U (en) | Double-acting plunger pump with low rotational speed and large discharge capacity | |
| CN210013809U (en) | Hydraulic peristaltic pump in corrugated pipe extrusion form | |
| CN108361189B (en) | Bidirectional radial plunger pump for distributing flow of motor valve and flow distribution method thereof | |
| CN106194703B (en) | Micro-metering Pumps pump shaft | |
| CN213838815U (en) | High-pressure pump for jack cluster synchronous action | |
| CN219317124U (en) | Reciprocating flow pump | |
| CN201133346Y (en) | Ceramic rotary-plunger pump | |
| CN105351175B (en) | A kind of membrane pump of non-circular gear drive | |
| CN2652829Y (en) | Mechanical pump valve for filling liquid | |
| CN208858559U (en) | A kind of high leakproofness stroke pump | |
| CN116538060B (en) | Distributed folding diaphragm pump | |
| CN217029194U (en) | Cam driving mechanism for four-plunger metering pump | |
| CN220415666U (en) | Plunger pump with double-layer sealing liquid leakage preventing structure | |
| CN218454799U (en) | Novel filling metering pump | |
| CN220869627U (en) | Split liquid inlet and outlet rotary valve of plunger type reciprocating pump | |
| CN114183320B (en) | Plunger pump not easy to leak | |
| CN110107486B (en) | Hydraulic peristaltic pump in corrugated pipe extrusion mode | |
| CN210859196U (en) | High-speed impeller of vacuum pump | |
| CN110778480B (en) | Plunger type online sterilization ceramic pump and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |