CN215861825U - Zero-abrasion gate valve - Google Patents
Zero-abrasion gate valve Download PDFInfo
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- CN215861825U CN215861825U CN202122187973.9U CN202122187973U CN215861825U CN 215861825 U CN215861825 U CN 215861825U CN 202122187973 U CN202122187973 U CN 202122187973U CN 215861825 U CN215861825 U CN 215861825U
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Abstract
The utility model relates to a zero-abrasion gate valve, which comprises a valve body, a gate plate and two valve seats, wherein a valve cavity is arranged in the valve body, an inlet and an outlet are respectively arranged at two ends of the valve body, the inlet and the outlet are opposite and are respectively connected with the valve cavity, the two valve seats are respectively arranged at the joint of the inlet and the valve cavity and the joint of the outlet and the valve cavity, the gate plate is arranged in the valve cavity and moves up and down between the two valve seats, and the gate valve is opened or closed; the gate valve is closed, and two sides of the gate plate are in sealing contact with the valve seats on the same side respectively; trompil on the flashboard, the hole runs through the flashboard both ends, connects import and export, one of the hole on the flashboard is served and is installed little disk seat, install little valve clack in import or the export, little valve clack do with little disk seat relative movement, open or close the hole on the flashboard. The pressure balance of flashboard both sides, it is steady to reciprocate, and its friction with the disk seat has been little, and sealed face is difficult for wearing and tearing, very big improvement the life of gate valve.
Description
Technical Field
The utility model relates to a gate valve, in particular to a zero-abrasion gate valve.
Background
The gate valve is a valve which uses a flashboard as an opening and closing piece and moves along the vertical direction of the axis of a valve seat so as to realize opening and closing actions. When the existing gate valve is used, the bearing pressure of the existing gate valve is larger, the friction force between the up-down movement of the gate plate and the valve seat is larger, the sealing surface between the gate plate and the valve seat can be damaged, and the service life of the gate valve is greatly shortened.
Disclosure of Invention
In order to solve the problems, the utility model provides a zero-abrasion gate valve.
The technical scheme of the utility model is as follows:
a zero-abrasion gate valve comprises a valve body, a gate plate and two valve seats, wherein a valve cavity is arranged in the valve body, an inlet and an outlet are respectively arranged at two ends of the valve body, the inlet and the outlet are opposite and are respectively connected with the valve cavity, the two valve seats are respectively arranged at the joint of the inlet and the valve cavity and the joint of the outlet and the valve cavity, the gate plate is arranged in the valve cavity and moves up and down between the two valve seats to open or close the gate valve; the gate valve is closed, and two sides of the gate plate are in sealing contact with the valve seats on the same side respectively; trompil on the flashboard, the hole runs through the flashboard both ends, communicates import and export, one of the hole on the flashboard is served and is installed little disk seat, install little valve clack in import or the export, little valve clack do with little disk seat relative movement, open or close the hole on the flashboard.
The small valve clack is arranged in the inlet; a rocker is arranged in the inlet, one end of the rocker is pivoted with the valve body, the other end of the rocker is fixedly connected with the small valve flap, a driving structure is mounted on the valve body, the driving structure is connected with the rocker, the rocker is driven to pivot, the small valve flap moves relative to the small valve seat, and a hole in the flashboard is opened or closed.
A pin shaft is rotatably arranged on the valve body, the rocker is sleeved on the pin shaft and is fixedly connected with the pin shaft, and one end or two ends of the pin shaft penetrate through the valve body to extend out; the driving structure is connected with the pin shaft outside the valve body, drives the pin shaft to rotate, and drives the rocker to pivot by taking the pin shaft as a circle center.
The gate valve also comprises a valve rod, the valve rod is vertically arranged, the lower end of the valve rod penetrates through the valve body and extends into the valve cavity to be fixedly connected with the gate plate, the valve rod is connected with a manual or automatic device arranged on the valve body, and the valve rod is driven by the manual or automatic device to drive the gate plate to move up and down together; the driving structure is formed by connecting a multi-stage connecting rod with a valve rod; the gate valve and the hole on the flashboard are opened or closed synchronously.
The manual device comprises a hand wheel, a support is fixedly connected to the valve body, the hand wheel is rotatably installed on the support, and the hand wheel is sleeved on the valve rod and is in threaded connection with the valve rod.
The gate valve has the advantages that the design is reasonable, the conception is ingenious, the structure of the check valve is introduced into the gate valve, and the check valve is used for opening the hole formed in the gate plate, so that the pressure on two sides of the gate plate is balanced, the gate plate moves up and down stably, the friction between the gate plate and the valve seat is small, the sealing surface is not easy to wear, and the service life of the gate valve is greatly prolonged.
Drawings
Fig. 1 is a schematic (internal) view of a zero-wear gate valve construction.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic view of a zero-wear gate valve structure (2).
In the figure, a valve body 1, a valve cavity 11, an inlet 12, an outlet 13, a flashboard 2, a hole 21 on the flashboard, a small valve seat 4 of a valve seat 3, a small valve flap 5, a rocker 6, a pin shaft 7, a valve rod 8, a multi-stage connecting rod 9, a hand wheel 10 and a support 11 are shown.
Detailed Description
As shown in fig. 1-3, the gate valve comprises a valve body 1, a gate plate 2 and two valve seats 3, wherein a valve cavity 11 is arranged in the valve body 1, an inlet 12 and an outlet 13 are respectively arranged at two ends of the valve body 1, the inlet 12 and the outlet 13 are opposite and are respectively connected with the valve cavity 11, the two valve seats 3 are respectively arranged at the joint of the inlet 12 and the valve cavity 11 and the joint of the outlet 13 and the valve cavity 11, the gate plate 2 is arranged in the valve cavity 11 and moves up and down between the two valve seats 3 to open or close the gate valve; the gate valve is closed, and two sides of the gate plate 2 are in sealing contact with the valve seats 3 on the same side respectively; the gate plate 2 is provided with a hole which penetrates through two ends of the gate plate 2 and is communicated with an inlet and an outlet, one end of the hole 21 on the gate plate is provided with a small valve seat 4, a small valve clack 5 is arranged in the inlet 12, the small valve clack 5 moves relative to the small valve seat 4, and the hole 21 on the gate plate is opened or closed; a rocker 6 is arranged in the inlet 12, one end of the rocker 6 is pivoted with the valve body 1, and the other end of the rocker 6 is fixedly connected with the small valve clack 5, a driving structure is arranged on the valve body 1 and is connected with the rocker 6, the rocker 6 is driven to pivot, the small valve clack 5 moves relative to the small valve seat 4, and the pressure relief hole 21 is opened or closed; a pin shaft 7 is rotatably mounted on the valve body 1, the rocker 6 is sleeved on the pin shaft 7 and is fixedly connected with the pin shaft 7, and one end or two ends of the pin shaft 7 penetrate through the valve body 1 to extend out; the driving structure is connected with a pin shaft 7 outside the valve body 1, and drives the pin shaft 7 to rotate so as to drive the rocker 6 to pivot by taking the pin shaft 7 as a circle center; the gate valve also comprises a valve rod 8, the valve rod 8 is vertically arranged, the lower end of the valve rod 8 penetrates through the valve body 1 and extends into the valve cavity 11 to be fixedly connected with the gate plate 2, the valve rod 8 is connected with a manual or automatic device arranged on the valve body 1, and the valve rod 8 is driven by the manual or automatic device to drive the gate plate 2 to move up and down together; the driving structure is formed by connecting a multi-stage connecting rod 9 and a valve rod 8; the gate valve and the hole 21 on the flashboard are opened or closed synchronously; the manual device comprises a hand wheel 10, a support 11 is fixedly connected to the valve body 1, the hand wheel 10 is rotatably installed on the support 11, and the hand wheel 10 is sleeved on the valve rod 8 and is in threaded connection with the valve rod 8.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.
Claims (5)
1. A zero-abrasion gate valve comprises a valve body, a gate plate and two valve seats, wherein a valve cavity is arranged in the valve body, an inlet and an outlet are respectively arranged at two ends of the valve body, the inlet and the outlet are opposite and are respectively connected with the valve cavity, the two valve seats are respectively arranged at the joint of the inlet and the valve cavity and the joint of the outlet and the valve cavity, the gate plate is arranged in the valve cavity and moves up and down between the two valve seats to open or close the gate valve; the gate valve is closed, and two sides of the gate plate are in sealing contact with the valve seats on the same side respectively; the valve is characterized in that the gate is provided with an opening, the opening penetrates through two ends of the gate, the inlet and the outlet are communicated, one end of the opening on the gate is provided with a small valve seat, a small valve clack is arranged in the inlet or the outlet, the small valve clack moves relative to the small valve seat, and the opening or the closing of the opening on the gate is realized.
2. A zero-wear gate valve in accordance with claim 1, wherein the small flap is mounted in the inlet; a rocker is arranged in the inlet, one end of the rocker is pivoted with the valve body, the other end of the rocker is fixedly connected with the small valve flap, a driving structure is mounted on the valve body, the driving structure is connected with the rocker, the rocker is driven to pivot, the small valve flap moves relative to the small valve seat, and a hole in the flashboard is opened or closed.
3. The zero-abrasion gate valve according to claim 1, wherein a pin is rotatably mounted on the valve body, the rocker is sleeved on the pin and fixedly connected with the pin, and one end or two ends of the pin penetrate through the valve body to extend out; the driving structure is connected with the pin shaft outside the valve body, drives the pin shaft to rotate, and drives the rocker to pivot by taking the pin shaft as a circle center.
4. The zero-abrasion gate valve according to claim 3, characterized in that the gate valve further comprises a valve rod, the valve rod is vertically arranged, the lower end of the valve rod penetrates through the valve body and extends into the valve cavity to be fixedly connected with the gate plate, the valve rod is connected with a manual or automatic device arranged on the valve body, and the valve rod is driven by the manual or automatic device to drive the gate plate to move up and down together; the driving structure is formed by connecting a multi-stage connecting rod with a valve rod; the gate valve and the hole on the flashboard are opened or closed synchronously.
5. The zero-wear gate valve of claim 4, wherein the manual device comprises a hand wheel, a support is fixedly connected to the valve body, the hand wheel is rotatably mounted on the support, and the hand wheel is sleeved on the valve rod and is in threaded connection with the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122187973.9U CN215861825U (en) | 2021-09-10 | 2021-09-10 | Zero-abrasion gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122187973.9U CN215861825U (en) | 2021-09-10 | 2021-09-10 | Zero-abrasion gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861825U true CN215861825U (en) | 2022-02-18 |
Family
ID=80258159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122187973.9U Active CN215861825U (en) | 2021-09-10 | 2021-09-10 | Zero-abrasion gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861825U (en) |
-
2021
- 2021-09-10 CN CN202122187973.9U patent/CN215861825U/en active Active
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