CN113775796A - One-way back pressure valve of solution metering and conveying system - Google Patents
One-way back pressure valve of solution metering and conveying system Download PDFInfo
- Publication number
- CN113775796A CN113775796A CN202111050943.1A CN202111050943A CN113775796A CN 113775796 A CN113775796 A CN 113775796A CN 202111050943 A CN202111050943 A CN 202111050943A CN 113775796 A CN113775796 A CN 113775796A
- Authority
- CN
- China
- Prior art keywords
- shaft sleeve
- shell
- valve rod
- ball body
- hole
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
- F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to the technical field of control valves, in particular to a one-way back pressure valve of a solution metering and conveying system, which has a simple and compact structure and low use cost and comprises a shell with openings at two ends, wherein an inlet is formed in one end of the shell, an outlet is formed in the other end of the shell, a movable valve core is arranged in the shell, the valve core comprises a ball body, a sealing shaft sleeve is arranged at the inlet of the shell, the inner diameter of the sealing shaft sleeve is larger than the outer diameter of the ball body, a closed through hole is formed in one end, close to the inlet of the shell, of the sealing shaft sleeve, the inner diameter of a small opening of the closed through hole is smaller than the outer diameter of the ball body, a valve rod abutting against the ball body is arranged in the sealing shaft sleeve, a bottom plate is arranged at the outlet of the shell, a guide shaft sleeve is arranged on the bottom plate, the valve rod penetrates through the guide shaft sleeve, a spring is sleeved outside the valve rod, and a liquid through hole is formed in the bottom plate.
Description
Technical Field
The invention relates to the technical field of control valves, in particular to a one-way back pressure valve of a solution metering and conveying system.
Background
The back pressure valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, when the pressure exceeds the force for opening and closing the valve core, the valve core is jacked open to allow gas or liquid to flow through, the guiding and opening force of the valve core is an important part, and in order to ensure the normal use of the back pressure valve, a relatively complex guiding and resetting mechanism is generally arranged, so that the whole back pressure valve is complex in structure and high in use cost.
Disclosure of Invention
In order to solve the problems of complex structure and high use cost of the existing back pressure valve, the invention provides a one-way back pressure valve of a solution metering and conveying system, which is simple and compact in structure and low in use cost.
The technical scheme is as follows: the utility model provides a solution measurement conveying system's one-way back pressure valve, its includes both ends open-ended casing, casing one end opening is imported, other end opening is the export, install movable case in the casing, its characterized in that, the case includes the spheroid, the import department of casing installs sealed axle sleeve, sealed axle sleeve internal diameter is greater than spheroidal external diameter, sealed axle sleeve is close to the import one end of casing sets up to binding off shape through-hole, the osculum internal diameter of binding off shape through-hole is less than spheroidal external diameter, be provided with in the sealed axle sleeve and support spheroidal valve rod, the exit of casing is provided with the bottom plate, install the direction axle sleeve on the bottom plate, the valve rod passes the direction axle sleeve, the outside cover of valve rod is equipped with the spring, the liquid through-hole has been seted up on the bottom plate.
The ball valve is further characterized in that the valve rod is a rod with different diameters, the small-diameter section of the valve rod is inserted into the guide shaft sleeve, the end part of the large-diameter section of the valve rod is provided with a top block with the outer diameter consistent with the inner diameter of the sealing shaft sleeve, and the middle of the top block is provided with a groove matched with the ball body;
the spring is located between the guide shaft sleeve and the top block.
After the invention is adopted, the inlet of the shell is blocked by the ball body abutting against the closed through hole on the sealing shaft sleeve, when the pressure applied to the ball body exceeds the elastic force of the spring, the ball body is pushed open, the liquid can smoothly flow through the shaft sleeve, the interior of the shell and the liquid through hole and then flows out from the outlet of the shell, the guiding is matched with the valve rod through the guide shaft sleeve, and the resetting is realized by the spring outside the valve rod, the integral structure is simple and compact, and the use cost is low.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
See fig. 1, a solution measures one-way back pressure valve of conveying system, it includes both ends open-ended casing 1, 1 one end opening of casing is import 2, the other end opening is export 3, install movable case in the casing 1, the case includes spheroid 4, the import department of casing 1 installs sealing shaft sleeve 5, sealing shaft sleeve 5 internal diameter is greater than spheroid 4's external diameter, sealing shaft sleeve 5 is close to 2 one end settings of import of casing 1 and is close up shape through-hole 6, the osculum internal diameter of close up shape through-hole 6 is less than spheroid 4's external diameter, it blocks up close up shape through-hole 6 to ensure spheroid 4, be provided with valve rod 7 that supports spheroid 4 in the sealing shaft sleeve 5, the exit of casing 1 is provided with bottom plate 8, install guide shaft sleeve 9 on the bottom plate 8, valve rod 7 passes guide shaft sleeve 9, the outside cover of valve rod 7 is equipped with spring 10, liquid through-hole 11 has been seted up on the bottom plate 8.
Specifically, valve rod 7 is the unequal diameter pole, and the path section cartridge of valve rod 7 is in guide shaft sleeve 9, and the big footpath section tip of valve rod 7 is provided with the kicking block 12 that the external diameter is unanimous with sealed axle sleeve 5 internal diameter, seted up in the middle of the kicking block 12 with spheroid 4 complex recess 13 to guarantee to support spheroid 4.
The spring 10 is located between the guide sleeve 9 and the top block 12.
The clamp springs are arranged below the sealing shaft sleeve 5 and the bottom plate 8, the clamp springs are not shown in the drawing, and only the clamp grooves for installing the clamp springs are provided.
The working principle is as follows: in an initial state, the elasticity of the spring 10 pushes the top block 12 on the valve rod 7 to abut against one end of the ball 4, the other end of the ball 4 abuts against a small opening of the closed through hole 6 to realize plugging, and at the moment, the valve is closed; when liquid enters from the inlet 2 of the shell 1 and contacts with the ball 4, when the pressure applied to the ball is greater than the elastic force of the spring 10, the ball 4 is pushed downwards and pushes the ejector block 12 to separate from the sealing shaft sleeve 5, the liquid can flow through the closed through hole 6 and the sealing shaft sleeve 5 to enter the shell 1 and then flows out from the outlet 3 of the shell 1 through the liquid through hole 11 on the bottom plate 8, and the valve is opened; and closes again when the pressure is not sufficient to eject the ball 4.
Claims (1)
1. A one-way back pressure valve of a solution metering and conveying system comprises a shell with openings at two ends, wherein one end of the shell is provided with an inlet, the other end of the shell is provided with an outlet, and a movable valve core is arranged in the shell and is characterized in that the valve core comprises a ball body, a sealing shaft sleeve is arranged at the inlet of the shell, the inner diameter of the sealing shaft sleeve is larger than the outer diameter of the ball body, one end, close to the inlet of the shell, of the sealing shaft sleeve is provided with a closed through hole, the inner diameter of a small opening of the closed through hole is smaller than the outer diameter of the ball body, a valve rod which is abutted against the ball body is arranged in the sealing shaft sleeve, a bottom plate is arranged at the outlet of the shell, a guide shaft sleeve is arranged on the bottom plate, the valve rod penetrates through the guide shaft sleeve, a spring is sleeved outside the valve rod, a liquid through hole is arranged on the bottom plate, and the valve rod is a non-uniform-diameter rod, the small-diameter section of the valve rod is inserted into the guide shaft sleeve, the end part of the large-diameter section of the valve rod is provided with a top block with the outer diameter consistent with the inner diameter of the sealing shaft sleeve, a groove matched with the ball body is formed in the middle of the top block, and the spring is located between the guide shaft sleeve and the top block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050943.1A CN113775796A (en) | 2021-09-08 | 2021-09-08 | One-way back pressure valve of solution metering and conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111050943.1A CN113775796A (en) | 2021-09-08 | 2021-09-08 | One-way back pressure valve of solution metering and conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113775796A true CN113775796A (en) | 2021-12-10 |
Family
ID=78841874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111050943.1A Withdrawn CN113775796A (en) | 2021-09-08 | 2021-09-08 | One-way back pressure valve of solution metering and conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113775796A (en) |
-
2021
- 2021-09-08 CN CN202111050943.1A patent/CN113775796A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211210 |
|
| WW01 | Invention patent application withdrawn after publication |