CN220646156U - Electric rotary valve pump - Google Patents
Electric rotary valve pump Download PDFInfo
- Publication number
- CN220646156U CN220646156U CN202322004521.1U CN202322004521U CN220646156U CN 220646156 U CN220646156 U CN 220646156U CN 202322004521 U CN202322004521 U CN 202322004521U CN 220646156 U CN220646156 U CN 220646156U
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- China
- Prior art keywords
- valve core
- rotary
- valve
- rotary valve
- fixing sleeve
- Prior art date
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- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
Abstract
The utility model provides an electric rotary valve pump which comprises a piston type metering pump body, a rotary valve sleeve, a valve core, a discharging flange, a feeding flange and a cylinder driving assembly, wherein the rotary valve body is arranged on the rotary valve sleeve; the rotary motion of the valve core in the horizontal direction is utilized to realize the communication between the feeding port, the discharging port and the connecting port, as well as the feeding flange, the discharging flange and the piston type metering pump body, and the liquid conveying precision is higher due to the adoption of the mode of on-off or not between the ports; meanwhile, the liquid is conveyed by only adopting the horizontal rotation of the valve core, so that the structure is simple, and the later disassembly and maintenance are very convenient.
Description
Technical Field
The utility model relates to the technical field of pump bodies, in particular to an electric rotary valve pump.
Background
Rotary pumps rely on the rotation of one or more rotors of the pump body to draw in and expel fluid, also known as rotopumps. Rotary pumps are many in form, but their operating principles are similar, with gear pumps and screw pumps being more common. The screw pump is mainly composed of screw rod, pump sleeve and universal coupling, and it is characterized by that it utilizes screw rod with circular cross section, and makes planetary motion in the special-shaped lining (stator), and on one hand, it can be used for pushing liquid forward along the internal screw thread of stator, and continuously moving from suction cavity to pressure cavity, and the fluid in the cavity is axially uniformly flowed.
The existing rotary pump generally adopts a three-way valve body as an input control valve and an output control valve of the pump to realize quantitative output of liquid, but the structure is complex, the assembly and the disassembly are complicated, and for liquids with different viscosity characteristics, the existing rotary pump realizes quantitative output of liquid by means of a gap between a valve core and the valve body, so that the output liquid precision is different.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide an electric rotary valve pump, which aims to solve the problems of complex structure, inconvenient disassembly and different infusion precision of the existing rotary pump.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the application provides an electric rotary valve pump, electric rotary valve pump includes the piston metering pump body, electric rotary valve pump still includes:
rotating the valve body;
the rotary valve sleeve is fixedly arranged in the inner cavity of the rotary valve body;
the valve core is arranged in the inner cavity of the rotary valve sleeve, a cavity for containing liquid is formed between the outer surface of the valve core and the inner wall of the rotary valve sleeve, a feed inlet, a discharge outlet and a connecting port are formed in the valve core, the feed inlet, the discharge outlet and the connecting port are respectively communicated through the inner cavity of the valve core, and a piston end in the piston type metering pump body is communicated with the connecting port;
one end of the discharging flange is communicated with the discharging port;
the feeding flange is communicated with the feeding port at one end;
and the cylinder driving assembly is connected with the valve core and used for driving the valve core to horizontally rotate.
Further, the cylinder driving assembly comprises a cylinder, a driver shell, a rack, a cylindrical gear and a connecting mechanism, wherein the driver shell is fixed on one side of the rotary valve body, the cylinder is connected with the rack and used for driving the rack to move in a telescopic manner, the cylindrical gear is fixedly arranged at one end of the connecting mechanism, the rack is meshed with the cylindrical gear, and the other end of the connecting mechanism is fixedly connected with the valve core.
Further, the connecting mechanism comprises a pressing block, a rotating shaft, a rotating joint, a valve core tail fixing sleeve and a sealing ring, one end of the rotating shaft is fixedly connected to the bottom end of the pressing block, the circumference gear is fixedly installed on the rotating shaft, one end of the rotating joint is installed on the other end of the rotating shaft, one end of the valve core tail fixing sleeve is connected with the other end of the rotating joint, the valve core is installed on the other end of the valve core tail fixing sleeve, and the sealing ring is installed between the rotating joint and the valve core tail fixing sleeve in a sealing mode.
Further, one end of the rotary shaft is provided with a first clamping groove, two ends of the rotary joint are respectively provided with a first bulge and a second bulge which extend outwards, the first bulge and the second bulge are in cross-shaped cross arrangement, the rotary joint and the rotary shaft are in rotary connection with each other through the cooperation of the first clamping groove and the first bulge, a second clamping groove is formed in one end face of the valve core tail fixing sleeve, and the valve core tail fixing sleeve and the rotary joint are in rotary connection with each other through the cooperation of the second bulge and the second clamping groove.
The beneficial effects of the utility model are as follows: the rotary motion of the valve core in the horizontal direction is utilized to realize the communication between the feeding port, the discharging port and the connecting port, as well as the feeding flange, the discharging flange and the piston type metering pump body, and the liquid conveying precision is higher due to the adoption of the mode of on-off or not between the ports; meanwhile, the liquid is conveyed by only adopting the horizontal rotation of the valve core, so that the structure is simple, and the later disassembly and maintenance are very convenient.
Drawings
Fig. 1 is a schematic perspective view of an electric rotary valve pump according to an embodiment of the present application.
Fig. 2 is a schematic view of another directional perspective structure of an electric rotary valve pump according to an embodiment of the present application.
Fig. 3 is a schematic view of a cylinder drive assembly mounted on an electric rotary valve pump in an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a cylinder driving assembly and a valve core matched with each other in the embodiment of the application.
Fig. 5 is a schematic view of the cylinder drive assembly and valve core mated configuration (with the external rotary valve sleeve removed) in an embodiment of the present application.
Fig. 6 is a schematic view of a cylinder driving assembly (cylinder not shown) according to an embodiment of the present application.
Fig. 7 is a schematic diagram showing an exploded assembly structure of a cylinder driving assembly in the embodiment of the present application.
Fig. 8 is a schematic perspective view of a valve core in an embodiment of the present application.
Fig. 9 is a schematic perspective view of a spool tail fixing sleeve in an embodiment of the present application.
Fig. 10 is a schematic perspective view of a rotary joint according to an embodiment of the present application.
Fig. 11 is a schematic perspective view of a rotating shaft in an embodiment of the present application.
In the figure:
100-electric rotary valve pump, 1-piston metering pump body, 2-feeding flange, 3-discharging flange, 4-cylinder driving component, 41-cylinder, 42-rack, 43-cylindrical gear, 44-connecting mechanism, 441-briquetting, 442-rotating shaft, 4421-first clamping groove, 443-rotating joint, 4431-first bulge, 4432-second bulge, 444-valve core tail fixing sleeve, 4441-second clamping groove, 5-rotating valve body, 6-rotating valve sleeve, 7-valve core, 71-feeding port, 72-discharging port and 73-connecting port.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1 to 2, the present embodiment provides an electric rotary valve pump 100 including a piston-type metering pump body 1, a rotary valve body 5, a rotary valve sleeve 6, a valve spool 7, a discharge flange 3, a feed flange 2, and a cylinder drive assembly 4.
Referring to fig. 3 to 6 in combination, in the present embodiment, a rotary valve housing 6 is fixedly provided in an inner cavity of a rotary valve body 5, a valve core 7 is provided in the inner cavity of the rotary valve housing 6, and a chamber for containing liquid is formed between an outer surface of the valve core 7 and an inner wall of the rotary valve housing 6. The valve core 7 is provided with a feed inlet 71, a discharge outlet 72 and a connecting port 73, the feed inlet 71, the discharge outlet 72 and the connecting port 73 are respectively communicated with the inner cavity of the valve core 7, namely, the connecting port 73, the feed inlet 71 and the discharge outlet 72 are respectively communicated with the inner cavity of the valve core 7, so that any two of the three can be communicated with each other by means of the inner cavity of the valve core 7.
With continued reference to fig. 3 to 6 and 8, the piston end in the piston metering pump body 1 is in communication with the connection port 73, one end of the discharge flange 3 is in communication with the discharge port 72, one end of the feed flange 2 is in communication with the feed port 71, it will be appreciated that since the valve core 7 is disposed in the interior cavity of the rotary valve housing 6 and the rotary valve housing 6 is in the interior cavity of the rotary valve body 5, three ports (connection port 73, feed port 71 and discharge port 72) on the valve core 7 are respectively in communication with the exterior, and openings corresponding to the connection port 73, feed port 71 and discharge port 72 are provided on the rotary valve housing 6 and the rotary valve body 5 in the case that the piston metering pump body 1, the feed flange 2 and the discharge flange 3 are connected. The cylinder driving assembly 4 is connected with the valve core 7 and is used for driving the valve core 7 to horizontally rotate.
In this embodiment, the valve core 7 is driven by the cylinder driving assembly 4 to realize horizontal rotation relative to the rotary valve sleeve 6, so as to control whether the connection ports 73, the feed ports 71 and the discharge ports 72 on the valve core 7 are communicated with the piston type metering pump body 1, the feed flange 2 and the discharge flange 3, and further control any two of the piston type metering pump body 1, the feed flange 2 and the discharge flange 3.
Referring to fig. 5 and 6 in combination, in the present embodiment, the cylinder driving assembly 4 includes a cylinder 41, a driver housing fixed to one side of the rotary valve body 5, a rack gear 42, a cylindrical gear 43, and a connection mechanism 44, the cylinder 41 is connected to the rack gear 42 for driving the rack gear 42 to move telescopically, the cylindrical gear 43 is fixedly installed on one end of the connection mechanism 44, the rack gear 42 is engaged with the cylindrical gear 43, and the other end of the connection mechanism 44 is fixedly connected to the valve spool 7.
The rack 42 is driven to move in a telescopic mode through the air cylinder 41, the rack 42 in the telescopic mode drives the cylindrical gear 43 meshed with the rack 42 to rotate, the cylindrical gear 43 in a rotating state drives the connecting mechanism 44 fixedly connected with the cylindrical gear 43 to rotate, and the connecting mechanism 44 drives the valve core 7 to rotate.
With continued reference to fig. 5 and 6, in particular, the connection mechanism 44 in this embodiment includes a press block 441, a rotary shaft 442, a rotary joint 443, a spool tail fixing sleeve 444, and a seal ring. One end of the rotary shaft 442 is fixedly connected to the bottom end of the pressing block 441, the circumferential gear is fixedly mounted on the rotary shaft 442, one end of the rotary joint 443 is mounted on the other end of the rotary shaft 442, one end of the valve core tail fixing sleeve 444 is connected with the other end of the rotary joint 443, the valve core 7 is mounted on the other end of the valve core tail fixing sleeve 444, and the sealing ring is mounted between the rotary joint 443 and the valve core tail fixing sleeve 444 in a sealing manner.
Referring to fig. 9 to 11, in the present embodiment, a first clamping groove 4421 is provided at one end of a rotary shaft 442, a first protrusion 4431 and a second protrusion 4432 extending outwards are provided at both ends of a rotary joint 443, the first protrusion 4431 and the second protrusion 4432 are disposed in a crisscross arrangement, the rotary joint 443 and the rotary shaft 442 are rotatably connected to each other by cooperation of the first clamping groove 4421 and the first protrusion 4431, a second clamping groove 4441 is provided on an end surface of one end of a spool tail fixing sleeve 444, and the spool tail fixing sleeve 444 and the rotary joint 443 are rotatably connected to each other by cooperation of the second protrusion 4432 and the second clamping groove 4441.
In this embodiment, the rotary shaft 442, the rotary joint 443, and the spool tail fixing sleeve 444 are rotatably connected with each other by a groove and a protrusion, which ensures normal rotation operation, and has a simple structure and is easy to disassemble and maintain.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. An electric rotary valve pump comprising a piston metering pump body, the electric rotary valve pump further comprising:
rotating the valve body;
the rotary valve sleeve is fixedly arranged in the inner cavity of the rotary valve body;
the valve core is arranged in the inner cavity of the rotary valve sleeve, a cavity for containing liquid is formed between the outer surface of the valve core and the inner wall of the rotary valve sleeve, a feed inlet, a discharge outlet and a connecting port are formed in the valve core, the feed inlet, the discharge outlet and the connecting port are respectively communicated through the inner cavity of the valve core, and a piston end in the piston type metering pump body is communicated with the connecting port;
one end of the discharging flange is communicated with the discharging port;
the feeding flange is communicated with the feeding port at one end;
and the cylinder driving assembly is connected with the valve core and used for driving the valve core to horizontally rotate.
2. An electric rotary valve pump according to claim 1, wherein the cylinder driving assembly comprises a cylinder, a driver housing, a rack, a cylindrical gear and a connecting mechanism, the driver housing is fixed on one side of the rotary valve body, the cylinder is connected with the rack for driving the rack to move telescopically, the cylindrical gear is fixedly arranged on one end of the connecting mechanism, the rack is meshed with the cylindrical gear, and the other end of the connecting mechanism is fixedly connected with the valve core.
3. The electric rotary valve pump according to claim 2, wherein the connecting mechanism comprises a pressing block, a rotating shaft, a rotating joint, a valve core tail fixing sleeve and a sealing ring, one end of the rotating shaft is fixedly connected to the bottom end of the pressing block, the cylindrical gear is fixedly installed on the rotating shaft, one end of the rotating joint is installed on the other end of the rotating shaft, one end of the valve core tail fixing sleeve is connected with the other end of the rotating joint, the valve core is installed on the other end of the valve core tail fixing sleeve, and the sealing ring is installed between the rotating joint and the valve core tail fixing sleeve in a sealing mode.
4. An electric rotary valve pump according to claim 3, wherein a first clamping groove is formed in one end of the rotary shaft, a first protrusion and a second protrusion extending outwards are respectively formed in two ends of the rotary joint, the first protrusion and the second protrusion are in crossed arrangement, the rotary joint and the rotary shaft are in rotary connection with each other through cooperation of the first clamping groove and the first protrusion, a second clamping groove is formed in an end face of one end of the valve core tail fixing sleeve, and the valve core tail fixing sleeve and the rotary joint are in rotary connection with each other through cooperation of the second protrusion and the second clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322004521.1U CN220646156U (en) | 2023-07-28 | 2023-07-28 | Electric rotary valve pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322004521.1U CN220646156U (en) | 2023-07-28 | 2023-07-28 | Electric rotary valve pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220646156U true CN220646156U (en) | 2024-03-22 |
Family
ID=90262281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322004521.1U Active CN220646156U (en) | 2023-07-28 | 2023-07-28 | Electric rotary valve pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220646156U (en) |
-
2023
- 2023-07-28 CN CN202322004521.1U patent/CN220646156U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |