CN212928806U - Valve core structure of micro flow regulating valve - Google Patents
Valve core structure of micro flow regulating valve Download PDFInfo
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- CN212928806U CN212928806U CN202021056208.2U CN202021056208U CN212928806U CN 212928806 U CN212928806 U CN 212928806U CN 202021056208 U CN202021056208 U CN 202021056208U CN 212928806 U CN212928806 U CN 212928806U
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Abstract
The utility model relates to a valve core structure of a micro flow control valve, belonging to the technical field of valves, comprising a valve body, wherein a valve seat is arranged in the valve body, a valve core is arranged in the valve seat, one end of the valve core is fixedly provided with a valve rod, and the side surface of the valve core is provided with a flow through groove; two overflowing grooves are formed and are symmetrically arranged relative to the valve core. The utility model limits the gap flow by the matching of the sealing ring and the overflowing groove, and avoids the control effect from being influenced by overlarge flow when the opening is small; the flow regulation of different operating modes can be realized to the geometric area that can select suitable overflow groove, compares traditional single seat structure and has better flow regulation effect.
Description
Technical Field
The utility model relates to the technical field of valves, specifically a small flow control valve's case structure.
Background
Valves are devices for controlling the direction, pressure and flow rate of fluid in fluid systems, which are devices capable of controlling the flow rate of media (liquid, gas and powder) in pipes and equipment by flowing or stopping the media, and are widely used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metals and radioactive media.
The conventional valve adopts a single-seat plunger piston structure or a sleeve structure, the single-seat valve has good sealing performance, but the flow regulation is unstable, the flow of the sleeve valve can be randomly changed according to the physical structure of the valve core, but the leakage amount is large, the gap flow just opened is large, and the regulation of the small flow cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a small flow control valve's case structure to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the valve core structure of the micro flow regulating valve comprises a valve body, a valve seat is installed in the valve body, a valve core is installed in the valve seat, a valve rod is fixedly installed at one end of the valve core, and a flow passing groove is formed in the side face of the valve core.
As a further technical solution of the present invention: two overflowing grooves are formed and are symmetrically arranged relative to the valve core.
As a further technical solution of the present invention: the inner diameter of the overflow groove is gradually increased from top to bottom.
As the utility model discloses a further technical scheme again: the valve core is connected with the valve seat through a sealing ring
Compared with the prior art, the beneficial effects of the utility model are that:
1. the clearance flow is limited by matching the sealing ring with the overflowing groove, so that the control effect is prevented from being influenced by overlarge flow when the opening degree is small;
2. the flow regulation of different operating modes can be realized to the geometric area that can select suitable overflow groove, compares traditional single seat structure and has better flow regulation effect.
Drawings
FIG. 1 is a sectional view showing a spool structure of a micro flow rate adjusting valve;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a front view of a spool structure of the micro flow rate control valve.
In the figure: 1-valve body, 2-valve seat, 3-valve core, 4-valve rod, 5-overflow groove and 6-sealing ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
The valve core structure of the micro flow regulating valve shown in fig. 1, 2 and 3 comprises a valve body 1, a valve seat 2 is installed in the valve body 1, a valve core 3 is installed in the valve seat 2, a valve rod 4 is fixedly installed at one end of the valve core 3, the valve rod 4 is used for adjusting the position of the valve core 3 by matching with the existing structures such as an actuator, an overflow groove 5 is formed in the side surface of the valve core 3, when the valve core 3 is lifted, the overflow groove 5 is exposed, and water passes through the overflow groove 5, so that the micro flow is regulated.
Furthermore, two overflow grooves 5 are formed, the two overflow grooves 5 are symmetrically arranged around the valve core 3, the adjustment is more stable, and meanwhile, in order to realize linear adjustment, the inner diameter of each overflow groove 5 is gradually increased from top to bottom; in order to ensure the integral sealing performance, the valve core 3 is connected with the valve seat 2 through a sealing ring 6.
The working principle is as follows: punch on case 3, open the wire casing, as overflow groove 5, overflow groove 5's geometric figure can design according to customer's actual demand, the flow that the valve was closed is by relying on case 3 and 2 hard seals of disk seat, the back is opened to the valve, because there is mechanical clearance between case 3 and the disk seat 2, can produce the clearance flow, rely on sealing washer 6 to restrict the clearance flow this moment, upward move through the executor when valve rod 4, when 5 tops in overflow groove begin to exceed 6 positions of sealing washer, begin to overflow, the stroke is big more, the area of overflowing is big more, realize the linear or geometric relation of flow and stroke.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The utility model provides a little flow control valve's case structure, includes valve body (1), its characterized in that: the valve is characterized in that a valve seat (2) is installed in the valve body (1), a valve core (3) is installed in the valve seat (2), a valve rod (4) is fixedly installed at one end of the valve core (3), and a flow through groove (5) is formed in the side face of the valve core (3).
2. The spool structure of a micro flow rate adjusting valve according to claim 1, wherein: the two overflow grooves (5) are formed, and the two overflow grooves (5) are symmetrically arranged relative to the valve core (3).
3. The spool structure of a minute flow rate adjusting valve according to claim 1 or 2, wherein: the inner diameter of the overflow groove (5) is gradually increased from top to bottom.
4. The spool structure of a micro flow rate adjusting valve according to claim 3, wherein: the valve core (3) is connected with the valve seat (2) through a sealing ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021056208.2U CN212928806U (en) | 2020-06-10 | 2020-06-10 | Valve core structure of micro flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021056208.2U CN212928806U (en) | 2020-06-10 | 2020-06-10 | Valve core structure of micro flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212928806U true CN212928806U (en) | 2021-04-09 |
Family
ID=75322835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021056208.2U Active CN212928806U (en) | 2020-06-10 | 2020-06-10 | Valve core structure of micro flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212928806U (en) |
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2020
- 2020-06-10 CN CN202021056208.2U patent/CN212928806U/en active Active
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