CN218543227U - Rising stem gate valve - Google Patents
Rising stem gate valve Download PDFInfo
- Publication number
- CN218543227U CN218543227U CN202223017171.4U CN202223017171U CN218543227U CN 218543227 U CN218543227 U CN 218543227U CN 202223017171 U CN202223017171 U CN 202223017171U CN 218543227 U CN218543227 U CN 218543227U
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- valve
- shaft hole
- valve rod
- rod
- flashboard
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Abstract
The utility model relates to the technical field of valves, in particular to an exposed rod gate valve, which is additionally provided with a conical surface sealing pair with hard sealing, has better sealing effect and is not easy to leak; the valve comprises a valve rod, a valve cover, a flashboard and a valve body, wherein the valve cover is arranged on the valve body, the valve rod is arranged on the valve cover, the flashboard is arranged at the lower end of the valve rod, a circular groove is formed in the upper part of the valve rod, an O-shaped ring is arranged in the circular groove, a shaft hole is formed in the upper part of the valve cover, and the O-shaped ring is tightly attached to the inner wall of the shaft hole; still including sealed piece, sealed piece fixed mounting is on valve rod upper portion, and sealed piece is located the shaft hole below, and the lower extreme in valve gap shaft hole is provided with the shaft hole terminal surface.
Description
Technical Field
The utility model relates to a technical field of valve especially relates to rising stem gate valve.
Background
A gate valve is a kind of opening and closing member for controlling fluid transportation, and has wide applications in various fields such as chemical industry, machinery, and pharmacy. Wherein the gate valve can be divided into rising stem gate valve and non-rising stem gate valve according to the type, and wherein the flashboard is linear motion along with the rotation of valve rod in the non-rising stem gate valve, and rising stem gate valve is the flashboard along with the up-and-down motion of valve rod and up-and-down reciprocating motion. Present rising stem gate valve includes the valve rod, the valve gap, valve body and flashboard, the lower extreme of valve rod is provided with the flashboard, the flashboard is located the valve body, the valve rod is installed on the valve cover, the valve gap is installed on the valve body, be provided with the recess on the valve rod, be provided with O type circle in the recess, be provided with the shaft hole on the valve gap, O type circle closely laminates with the shaft hole of valve gap, it is sealed through realizing between O type circle and the valve gap through the valve rod, it discovers in the use, only realize through the laminating between O type circle and the shaft hole between valve rod and the valve gap and seal, its sealed effect is not good, reveal easily, so need a rising stem gate valve that sealed effect is better.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an it is sealed vice to have increased the conical surface of one hard seal, and sealed effect is better, the rising stem gate valve of difficult leakage.
The utility model discloses a rising stem gate valve, including valve rod, valve gap, flashboard and valve body, the valve gap is installed on the valve body, and the valve rod is installed on the valve cap, and the flashboard is installed at the valve rod lower extreme, and the upper portion of valve rod is provided with circular recess, is provided with O type circle in the circular recess, and the upper portion of valve gap is provided with the shaft hole, and O type circle and shaft hole inner wall closely laminate; the sealing block is fixedly arranged at the upper part of the valve rod and is positioned below the shaft hole, and the lower end of the shaft hole of the valve cover is provided with a shaft hole end face; when opening rising stem gate valve, the valve rod drives the flashboard rebound, the valve rod drives sealed piece rebound simultaneously, sealed piece is in rebound in-process and shaft hole end face contact, the up end of sealed piece closely laminates with the shaft hole terminal surface and forms one hard seal's structure, it forms one soft seal structure through O type circle and the inseparable laminating of shaft hole inner wall, simultaneously through increasing sealed piece, sealed piece is at the in-process that rises and shaft hole end face formation one hard seal structure, one sealed structure has been increased, sealed effect is better, be difficult to leak.
Preferably, the sealing block is conical, and the end surface of the shaft hole is a conical surface; through the arrangement, when the upper end of the sealing block is attached to the end face of the shaft hole, the sealing effect is better.
Compared with the prior art, the beneficial effects of the utility model are that: the conical surface sealing pair with hard sealing is added, the sealing effect is better, and the leakage is not easy to occur.
Drawings
Fig. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the valve stem and seal block configuration;
in the drawings, the reference numbers: 1. a valve stem; 2. a sealing block; 3. a valve cover; 4. the end surface of the shaft hole.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As shown in fig. 1-2, the utility model discloses an rising stem gate valve includes the valve body, the flashboard, valve rod 1, valve gap 3 and sealed piece 2, valve gap 3 is installed on the valve body, valve rod 1 is installed on valve gap 3, the flashboard is installed at valve rod 1 lower extreme, the upper portion of valve rod 1 is provided with circular recess, be provided with O type circle in the circular recess, the upper portion of valve gap 3 is provided with the shaft hole, O type circle closely laminates with the shaft hole inner wall, 2 fixed mounting on 1 upper portion of valve rod of sealed piece, sealed piece 2 is located the shaft hole below, the lower extreme in valve gap 3 shaft hole is provided with shaft hole terminal surface 4, sealed piece 2's shape is conical, shaft hole terminal surface 4 is the conical surface.
The utility model discloses an open lever gate valve, it is at the during operation, when opening the open lever gate valve, valve rod 1 drives the flashboard rebound, valve rod 1 drives sealed piece 2 rebound simultaneously, sealed piece 2 contacts at rebound's in-process and shaft hole terminal surface 4, the up end of sealed piece 2 forms the structure that seals firmly together with shaft hole terminal surface 4 closely laminating, it forms soft seal structure together through O type circle and the inseparable laminating of shaft hole inner wall, simultaneously through increasing sealed piece 2, sealed piece 2 forms hard seal structure together with shaft hole terminal surface 4 at the in-process that rises, one sealed structure has been increased, sealing effect is better, be difficult to leak.
The utility model discloses the main function who realizes does: the sealing effect is better, is difficult for leaking, and practicality and reliability are high.
The mounting mode, the connection mode or the arrangement mode of the rising stem gate valve of the utility model are common mechanical modes, and the rising stem gate valve can be implemented as long as the beneficial effects can be achieved; the utility model discloses a rising stem gate valve's valve rod 1, flashboard, valve body and valve gap 3 for purchase on the market, this industry technical staff only need according to its subsidiary service instruction install and operate can, and need not the technical staff in this field and pay out creative work.
All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention is understood according to the specific circumstances.
The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The rising stem gate valve comprises a valve rod (1), a valve cover (3), a flashboard and a valve body, wherein the valve cover (3) is installed on the valve body, the valve rod (1) is installed on the valve cover (3), the flashboard is installed at the lower end of the valve rod (1), a circular groove is formed in the upper portion of the valve rod (1), an O-shaped ring is arranged in the circular groove, a shaft hole is formed in the upper portion of the valve cover (3), and the O-shaped ring is tightly attached to the inner wall of the shaft hole; the sealing device is characterized by further comprising a sealing block (2), wherein the sealing block (2) is fixedly installed on the upper portion of the valve rod (1), the sealing block (2) is located below the shaft hole, and the lower end of the shaft hole of the valve cover (3) is provided with a shaft hole end face (4).
2. A rising stem gate valve according to claim 1, characterized in that the sealing block (2) is conical in shape and the shaft bore end surface (4) is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017171.4U CN218543227U (en) | 2022-11-14 | 2022-11-14 | Rising stem gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017171.4U CN218543227U (en) | 2022-11-14 | 2022-11-14 | Rising stem gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218543227U true CN218543227U (en) | 2023-02-28 |
Family
ID=85260301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223017171.4U Active CN218543227U (en) | 2022-11-14 | 2022-11-14 | Rising stem gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218543227U (en) |
-
2022
- 2022-11-14 CN CN202223017171.4U patent/CN218543227U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |