CN115306704B - Valve gap structure and use electric jar pump of this structure - Google Patents

Valve gap structure and use electric jar pump of this structure Download PDF

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Publication number
CN115306704B
CN115306704B CN202211238374.8A CN202211238374A CN115306704B CN 115306704 B CN115306704 B CN 115306704B CN 202211238374 A CN202211238374 A CN 202211238374A CN 115306704 B CN115306704 B CN 115306704B
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China
Prior art keywords
water
piston rod
distribution disc
distribution
valve body
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CN202211238374.8A
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Chinese (zh)
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CN115306704A (en
Inventor
李忠伟
郭德荣
诸德鸿
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Changzhou Ruixi Biological Technology Co ltd
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Changzhou Ruixi Biological Technology Co ltd
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Priority to CN202211238374.8A priority Critical patent/CN115306704B/en
Publication of CN115306704A publication Critical patent/CN115306704A/en
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Publication of CN115306704B publication Critical patent/CN115306704B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/109Valves; Arrangement of valves inlet and outlet valve forming one unit
    • F04B53/1092Valves; Arrangement of valves inlet and outlet valve forming one unit and one single element forming both the inlet and outlet closure member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00Cleaning by methods involving the use of tools
    • B08B1/30Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08Cooling; Heating; Preventing freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1002Ball valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/102Disc valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/1087Valve seats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14Pistons, piston-rods or piston-rod connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162Adaptations of cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/04Check valves with guided rigid valve members shaped as balls

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

The invention relates to the technical field of valve cover structures, in particular to a valve cover structure and a high-precision cylinder pump using the same. The invention provides a valve cover structure, wherein a piston sleeve is hollow, and a piston rod is arranged in the piston sleeve in a reciprocating sliding manner; the valve body is fixed at one end of the piston sleeve, the water inlet pipe is arranged at the lower end of the valve body, and the water inlet pipe is communicated with the piston sleeve; the water outlet pipe is arranged at the upper end of the valve body and is communicated with the piston sleeve; the distribution disc is rotatably arranged in the valve body and is communicated with the water inlet pipe and the water outlet pipe; wherein the piston rod moves backwards to enable the water in the water inlet pipe to be injected into the piston sleeve through the distribution disc; the distribution disc is suitable for uniformly dispersing water into the valve body; the piston rod moves forwards, so that water in the valve body flows into the collecting tank through the annular ray of the distribution disc and flows out through the water outlet pipe. Through the setting of plate of distributor, can clear up the incrustation scale of piston rod tip, avoid the pile up of incrustation scale, improve work efficiency.

Description

Valve gap structure and use electric jar pump of this structure
Technical Field
The invention relates to the technical field of valve cover structures, in particular to a valve cover structure and a cylinder pump using the same.
Background
The cylinder pump is an infusion pump for conveying liquid, has the characteristics of high precision, high pressure, stable pressure, automatic flow regulation and the like, and absorbs and conveys the liquid by driving a piston rod to reciprocate by an electric cylinder; after liquid, especially water, flows and is conveyed through the piston sleeve for a long time, scale can be formed in the piston sleeve, the accumulation of the scale can not only increase the friction force between the piston rod and the piston sleeve, but also easily cause the increase of the pushing resistance of the cylinder pump, and simultaneously the scale can also damage the inner wall of the piston sleeve, so that the occurrence of rusting of equipment is caused; therefore, it is necessary to develop an electric cylinder pump using a valve cover structure.
Disclosure of Invention
The invention aims to provide a valve cover structure.
In order to solve the above technical problem, the present invention provides a valve cover structure, including: the water distribution valve comprises a piston sleeve, a valve body, a water inlet pipe, a water outlet pipe and a distribution plate, wherein the piston sleeve is hollow, and a piston rod is arranged in the piston sleeve in a reciprocating sliding manner;
the valve body is fixed at one end of the piston sleeve, the water inlet pipe is arranged at the lower end of the valve body, and the water inlet pipe is communicated with the piston sleeve;
the water outlet pipe is arranged at the upper end of the valve body and is communicated with the piston sleeve;
the distribution plate is rotatably arranged in the valve body and is communicated with the water inlet pipe and the water outlet pipe; wherein
The piston rod moves backwards to enable water in the water inlet pipe to be injected into the piston sleeve through the distribution disc;
the distribution disc is suitable for uniformly dispersing water into the valve body;
the piston rod moves forwards, so that water in the valve body flows into the collecting tank through the annular ray of the distribution disc and flows out through the water outlet pipe.
Preferably, the center of the distribution plate is provided with a water filling port, and the water filling port is communicated with the water inlet pipe;
the distribution disc is radially provided with a plurality of distribution grooves which are communicated with the water injection ports; wherein
When water enters, the water in the water inlet pipe is suitable for being dispersed to the periphery of the distribution plate through the distribution groove;
when water flows out, the piston rod pushes the water to flow towards the direction of the distribution disc, and the water flows to the collecting tank through the distribution groove and flows out through the water outlet pipe.
Preferably, the outer diameter of the piston rod is consistent with the inner diameter of the piston sleeve;
the end part of the piston rod is arc-shaped and protrudes towards the valve body.
Preferably, the side wall of the distribution disc is a cambered surface matched with the end part of the piston rod, and when the piston rod abuts against the distribution disc, the cambered surface is tightly attached to the end part of the piston rod.
Preferably, a water inlet one-way valve is arranged in the water inlet pipe;
a water outlet one-way valve is arranged in the water outlet pipe; wherein
When water enters, the water outlet one-way valve is in a closed state;
when water is discharged, the water inlet one-way valve is in a closed state.
Preferably, the valve body is axially provided with an accommodating groove, and the accommodating groove is communicated with the water inlet pipe;
the distribution plate is rotatably arranged in the accommodating groove, and the inner diameter of the accommodating groove is consistent with the outer diameter of the distribution plate.
Preferably, the outer wall of the distribution plate is circumferentially provided with a thread groove;
a limiting column matched with the thread groove is fixed on the inner wall of the accommodating groove, and the limiting column is slidably arranged in the thread groove; wherein
After the piston rod abuts against the distribution disc, the piston rod continuously pushes the distribution disc to drive the distribution disc to rotate circumferentially;
the distribution disc rotates circumferentially, and the distribution groove can scrape scale on the end of the piston rod.
Preferably, the collecting groove is formed in the side wall of the valve body, and the outer diameter of the collecting groove is larger than that of the accommodating groove;
and the water outlet of the water outlet pipe is arranged on the side wall of the collecting tank.
Preferably, a dirt collecting groove is formed in the inner wall of the accommodating groove, the dirt collecting groove is radially arranged along the accommodating groove, and the dirt collecting groove penetrates through the valve body; wherein
The distribution disc rotates circumferentially to enable the distribution groove to scrape scale on the end part of the piston rod;
the scale drops downwards and can be collected in the dirt collecting groove.
On the other hand, the invention also provides an electric cylinder pump using the valve cover structure, which comprises a support, a pressure sensor, an electric pump body, a parallel water suction seat, a control assembly and a heat dissipation fan, wherein the support is rectangular, the support is hollow, the electric pump body is fixed in the support, and a piston rod is fixed at the movable end of the electric pump body;
the parallel water absorption seat is fixed at the lower end of the water inlet pipe;
the pressure sensor is fixed on the outer side wall of the bracket, and the water outlet pipe is communicated with the pressure sensor;
the control assembly is fixed in the bracket and is electrically connected with the electric pump body;
the heat dissipation fan is fixed in the support and close to the electric pump body.
The valve cover structure has the beneficial effects that the valve cover structure achieves the effect of cleaning scale remained at the end part of the piston rod through the matching of the valve body, the distribution disc and the piston rod; when the scale is required to be cleaned, the piston rod moves towards the distribution disc and pushes the distribution disc to rotate along the circumferential direction of the accommodating groove, the distribution groove can scrape the scale at the end part of the piston rod, and the falling scale is converged in the dirt collecting groove. The situation that the friction force between the piston rod and the piston sleeve is increased due to scale accumulation is avoided; the working efficiency of the piston rod is improved.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a perspective view of a preferred embodiment of a valve cover structure of the present invention;
FIG. 2 is a perspective view of the valve body of the present invention;
FIG. 3 is a longitudinal cross-sectional view of the valve body of the present invention;
FIG. 4 is a perspective view of a dispensing tray of the present invention;
FIG. 5 is an internal cross-sectional perspective view of the valve body of the present invention;
FIG. 6 is a cross-sectional view of a piston rod and piston sleeve of the present invention;
fig. 7 is a perspective view of the stent of the present invention.
In the figure:
1. a piston sleeve; 10. a piston rod;
2. a valve body; 20. accommodating grooves; 21. a limiting column; 22. collecting tank; 23. a sewage collecting tank;
3. a water inlet pipe; 30. a water inlet one-way valve;
4. a water outlet pipe; 40. a water outlet one-way valve;
5. a distribution tray; 50. a water injection port; 51. a distribution tank; 52. a thread groove; 53. a limiting ring;
6. a support; 61. a pressure sensor; 62. an electric pump body; 63. a water absorption seat is connected in parallel; 64. a control component; 65. a heat dissipation fan.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 7, the present invention provides a valve cover structure including:
the water distribution valve comprises a piston sleeve 1, a valve body 2, a water inlet pipe 3, a water outlet pipe 4 and a distribution plate 5, wherein the piston sleeve 1 is hollow, and a piston rod 10 is arranged in the piston sleeve 1 in a reciprocating sliding manner;
the valve body 2 is fixed at one end of the piston sleeve 1, the water inlet pipe 3 is arranged at the lower end of the valve body 2, and the water inlet pipe 3 is communicated with the piston sleeve 1;
the water outlet pipe 4 is arranged at the upper end of the valve body 2, and the water outlet pipe 4 is communicated with the piston sleeve 1;
the distribution plate 5 is rotatably arranged in the valve body 2, and the distribution plate 5 is communicated with the water inlet pipe 3 and the water outlet pipe 4; wherein
The piston rod 10 moves backwards to make the water in the water inlet pipe 3 injected into the piston sleeve 1 through the distribution plate 5;
the distribution disk 5 is adapted to uniformly disperse the water flow into the valve body 2;
the piston rod 10 moves forward so that the water in the valve body 2 flows into the collecting tank 22 through the annular ray of the distribution disc 5 and flows out through the water outlet pipe 4.
Further, a water injection port 50 is formed in the center of the distribution disc 5, and the water injection port 50 is communicated with the water inlet pipe 3;
the distribution disc 5 is provided with a plurality of distribution grooves 51 along the radial direction, and the distribution grooves 51 are communicated with the water injection ports 50; wherein
When water enters, the water in the water inlet pipe 3 is suitable for being dispersed to the periphery of the distribution disc 5 through the distribution groove 51;
when water is discharged, the piston rod 10 pushes the water to flow towards the distribution disc 5, and the water flows towards the collecting tank 22 through the distribution groove 51 and flows out through the water outlet pipe 4.
Further, the outer diameter of the piston rod 10 is consistent with the inner diameter of the piston sleeve 1;
the end of the piston rod 10 is arc-shaped and protrudes towards the valve body 2.
Further, the side wall of the distribution disc 5 is a cambered surface matched with the end part of the piston rod 10, and when the piston rod 10 abuts against the distribution disc 5, the cambered surface is tightly attached to the end part of the piston rod 10.
Further, a water inlet check valve 30 is arranged in the water inlet pipe 3;
a water outlet one-way valve 40 is arranged in the water outlet pipe 4; wherein
When water enters, the water outlet one-way valve 40 is in a closed state;
when water is discharged, the water inlet check valve 30 is in a closed state.
Furthermore, an accommodating groove 20 is axially formed in the valve body 2, and the accommodating groove 20 is communicated with the water inlet pipe 3;
the distribution plate 5 is rotatably disposed in the accommodating groove 20, and the inner diameter of the accommodating groove 20 is consistent with the outer diameter of the distribution plate 5.
Further, a thread groove 52 is formed on the outer wall of the distribution plate 5 along the circumferential direction;
a limiting column 21 matched with the thread groove 52 is fixed on the inner wall of the accommodating groove 20, and the limiting column 21 is slidably arranged in the thread groove 52; wherein
After the piston rod 10 abuts against the distribution disc 5, the piston rod 10 continues to push the distribution disc 5 to drive the distribution disc 5 to rotate circumferentially;
the distribution disc 5 rotates circumferentially, and the distribution groove 51 can scrape scale from the end of the piston rod 10.
Further, the collecting groove 22 is formed in the side wall of the valve body 2, and the outer diameter of the collecting groove 22 is larger than that of the accommodating groove 20;
the water outlet of the water outlet pipe 4 is arranged on the side wall of the collecting tank 22.
Further, a dirt collecting groove 23 is formed in the inner wall of the accommodating groove 20, the dirt collecting groove 23 is radially arranged along the accommodating groove 20, and the dirt collecting groove 23 penetrates through the valve body 2; wherein
The distribution disc 5 rotates circumferentially to enable the distribution groove 51 to scrape scale on the end part of the piston rod 10;
the scale falls down and can collect in the dirt collection tank 23.
Example two
In this embodiment, on the basis of the first embodiment, an electric cylinder pump using a valve cover structure is further provided, which includes a valve cover structure shown in the first embodiment, and the specific structure is the same as that of the first embodiment, which is not described herein again, and the specific electric cylinder pump using the valve cover structure is as follows:
the device comprises a support 6, a pressure sensor 61, an electric pump body 62, a parallel water suction seat 63, a control assembly 64 and a heat dissipation fan 65, wherein the support 6 is rectangular, the support 6 is hollow, the electric pump body 62 is fixed in the support 6, and the piston rod 10 is fixed at the movable end of the electric pump body 62;
the parallel water absorption seat 63 is fixed at the lower end of the water inlet pipe 3;
the pressure sensor 61 is fixed on the outer side wall of the bracket 6, and the water outlet pipe 4 is communicated with the pressure sensor 61;
the control assembly 64 is fixed in the bracket 6, and the control assembly 64 is electrically connected with the electric pump body 62;
the heat dissipation fan 65 is fixed in the bracket 6 near the electric pump body 62.
In light of the foregoing description of the preferred embodiment of the present invention, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. A valve cover structure, comprising:
the water distribution valve comprises a piston sleeve (1), a valve body (2), a water inlet pipe (3), a water outlet pipe (4) and a distribution plate (5), wherein the piston sleeve (1) is hollow, and a piston rod (10) is arranged in the piston sleeve (1) in a reciprocating sliding manner;
the valve body (2) is fixed at one end of the piston sleeve (1), the water inlet pipe (3) is arranged at the lower end of the valve body (2), and the water inlet pipe (3) is communicated with the piston sleeve (1);
the water outlet pipe (4) is arranged at the upper end of the valve body (2), and the water outlet pipe (4) is communicated with the piston sleeve (1);
the distribution disc (5) is rotatably arranged in the valve body (2), and the distribution disc (5) is communicated with the water inlet pipe (3) and the water outlet pipe (4); wherein
The piston rod (10) moves backwards so that the water in the water inlet pipe (3) is injected into the piston sleeve (1) through the distribution disc (5);
the distribution disc (5) is suitable for uniformly dispersing the water flowing into the valve body (2);
the piston rod (10) moves forwards, so that water in the valve body (2) flows into a collecting tank (22) through the annular ray of the distribution disc (5) and flows out through the water outlet pipe (4);
a water filling port (50) is formed in the center of the distribution disc (5), and the water filling port (50) is communicated with the water inlet pipe (3);
the distribution disc (5) is provided with a plurality of distribution grooves (51) along the radial direction, and the distribution grooves (51) are communicated with the water injection ports (50); wherein
When water enters, the water in the water inlet pipe (3) is suitable for being dispersed to the periphery of the distribution disc (5) through the distribution groove (51);
when water is discharged, the piston rod (10) pushes the water to flow towards the distribution disc (5), and the water flows to the collecting tank (22) through the distribution groove (51) and flows out through the water outlet pipe (4);
the outer diameter of the piston rod (10) is consistent with the inner diameter of the piston sleeve (1);
the end part of the piston rod (10) is convex towards the valve body (2) in an arc shape;
the side wall of the distribution disc (5) is a cambered surface matched with the end part of the piston rod (10), and when the piston rod (10) abuts against the distribution disc (5), the cambered surface is tightly attached to the end part of the piston rod (10);
an accommodating groove (20) is formed in the valve body (2) along the axial direction, and the accommodating groove (20) is communicated with the water inlet pipe (3);
the distribution disc (5) is rotatably arranged in the accommodating groove (20), and the inner diameter of the accommodating groove (20) is consistent with the outer diameter of the distribution disc (5);
a thread groove (52) is formed in the outer wall of the distribution disc (5) along the circumferential direction;
a limiting column (21) matched with the thread groove (52) is fixed on the inner wall of the accommodating groove (20), and the limiting column (21) can be slidably arranged in the thread groove (52); wherein
After the piston rod (10) abuts against the distribution disc (5), the piston rod (10) continues to push the distribution disc (5) to drive the distribution disc (5) to rotate circumferentially;
the distribution disc (5) rotates in the circumferential direction, and the distribution groove (51) can scrape scale on the end part of the piston rod (10).
2. A valve cover structure according to claim 1,
a water inlet one-way valve (30) is arranged in the water inlet pipe (3);
a water outlet one-way valve (40) is arranged in the water outlet pipe (4); wherein
When water enters, the water outlet one-way valve (40) is in a closed state;
when water is discharged, the water inlet one-way valve (30) is in a closed state.
3. A valve cover structure according to claim 2,
the collecting groove (22) is formed in the side wall of the valve body (2), and the outer diameter of the collecting groove (22) is larger than that of the accommodating groove (20);
the water outlet of the water outlet pipe (4) is arranged on the side wall of the collecting tank (22).
4. A valve cover structure according to claim 3,
a sewage collecting groove (23) is formed in the inner wall of the accommodating groove (20), the sewage collecting groove (23) is radially arranged along the accommodating groove (20), and the sewage collecting groove (23) penetrates through the valve body (2); wherein
The distribution disc (5) rotates in the circumferential direction, so that the distribution groove (51) can scrape scale on the end part of the piston rod (10);
the scale drops downwards and can be collected in the dirt collecting groove (23).
5. A cylinder pump using a valve cover structure, comprising a valve cover structure according to claim 4,
the electric pump comprises a support (6), a pressure sensor (61), an electric pump body, a parallel water suction seat (63), a control assembly (64) and a heat dissipation fan (65), wherein the support (6) is rectangular, the support (6) is hollow, the electric pump body is fixed in the support (6), and a piston rod (10) is fixed at the movable end of the electric pump body;
the parallel water absorption seat (63) is fixed at the lower end of the water inlet pipe (3);
the pressure sensor (61) is fixed on the outer side wall of the bracket (6), and the water outlet pipe (4) is communicated with the pressure sensor (61);
the control assembly (64) is fixed in the bracket (6), and the control assembly (64) is electrically connected with the electric pump body;
the heat dissipation fan (65) is fixed in the support (6) close to the electric pump body.
CN202211238374.8A 2022-10-11 2022-10-11 Valve gap structure and use electric jar pump of this structure Active CN115306704B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211238374.8A CN115306704B (en) 2022-10-11 2022-10-11 Valve gap structure and use electric jar pump of this structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211238374.8A CN115306704B (en) 2022-10-11 2022-10-11 Valve gap structure and use electric jar pump of this structure

Publications (2)

Publication Number Publication Date
CN115306704A CN115306704A (en) 2022-11-08
CN115306704B true CN115306704B (en) 2022-12-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2339782Y (en) * 1998-06-08 1999-09-22 石油大学(华东) Three-cylinder single-action hydraulic driven reciprocating plunger pump
CN212177338U (en) * 2020-04-30 2020-12-18 成都东日瑞姆机械有限公司 Horizontal metering pump for polyurethane foaming
CN216026499U (en) * 2021-08-31 2022-03-15 无锡市丰运机械制造有限公司 Piston pump convenient to clearance piston surface scaling
CN114810541A (en) * 2022-04-18 2022-07-29 安徽拓盛生物科技有限公司 Infusion pump
CN217401077U (en) * 2022-05-12 2022-09-09 山东科瑞油气装备有限公司 Electric cylinder driven liquid injection pumping device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2339782Y (en) * 1998-06-08 1999-09-22 石油大学(华东) Three-cylinder single-action hydraulic driven reciprocating plunger pump
CN212177338U (en) * 2020-04-30 2020-12-18 成都东日瑞姆机械有限公司 Horizontal metering pump for polyurethane foaming
CN216026499U (en) * 2021-08-31 2022-03-15 无锡市丰运机械制造有限公司 Piston pump convenient to clearance piston surface scaling
CN114810541A (en) * 2022-04-18 2022-07-29 安徽拓盛生物科技有限公司 Infusion pump
CN217401077U (en) * 2022-05-12 2022-09-09 山东科瑞油气装备有限公司 Electric cylinder driven liquid injection pumping device

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