CN220470661U - Double-screw gate valve - Google Patents
Double-screw gate valve Download PDFInfo
- Publication number
- CN220470661U CN220470661U CN202321739848.7U CN202321739848U CN220470661U CN 220470661 U CN220470661 U CN 220470661U CN 202321739848 U CN202321739848 U CN 202321739848U CN 220470661 U CN220470661 U CN 220470661U
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- China
- Prior art keywords
- valve
- screw
- flashboard
- gate
- connecting frame
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a double-screw gate valve, which comprises a valve body with a valve seat at the lower part, wherein a gate plate is arranged in the valve body; the valve body is provided with a connecting frame, two parallel lead screws are arranged on the connecting frame in a penetrating way, and the end parts of the lead screws are connected to the flashboard; the connecting frame at the lead screw is provided with a lifter sleeved on the lead screw and used for driving the lead screw to move up and down, and the lifter is connected with a motor which is arranged on the connecting frame and used for providing power through a coupler; a sealing pair for sealing is arranged in the valve port of the valve seat. According to the double-screw gate valve, the gate plate is driven to move up and down through the two screw rods, so that the stress of the gate plate is more uniform, the gate plate can move up and down stably, the gate plate is prevented from deforming effectively, and the sealing effect of the gate valve and the service life of the gate valve are improved.
Description
Technical Field
The utility model relates to the technical field of gate valves, in particular to a double-screw gate valve.
Background
The gate valve, also called hand knife gate valve, is a kind of valve with gate plate and valve seat being tightly contacted and sealed all the time, its principle is that the gate plate is opened with a circular opening with a diameter, the circular opening on the gate plate is made to make complete separation and anastomotic movement with the diameter through opening and closing of the gate plate. The penetrating knife gate valve has the characteristics of precise structure, good manufacturability, compact structure and the like, and the sealing valve seat is of a movable structure design and has the functions of wear resistance and automatic compensation, so that the service life is longer.
The gate valve in the market is connected with the hand wheel and the gate plate through a screw rod, and the hand wheel drives the screw rod to rotate so as to drive the gate plate to move up and down repeatedly, so that the gate valve is opened and closed. Because connect through single lead screw between hand wheel and the flashboard, when rotating the hand wheel and driving the flashboard and reciprocate, flashboard single point atress moreover not only causes the flashboard to rock easily, causes the flashboard deformation, leads to the flashboard to be closed not tight, has the possibility of leaking, influences the life of push-pull valve.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a double-screw gate valve, which is stressed by two points of a gate plate more uniformly, so that the sealing effect and the service life of the gate valve are improved.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
A double-screw gate valve comprises a valve body with a valve seat at the lower part, wherein a gate plate is arranged in the valve body; the valve body is provided with a connecting frame, two parallel lead screws are arranged on the connecting frame in a penetrating way, and the end parts of the lead screws are connected to the flashboard; the connecting frame at the lead screw is provided with a lifter sleeved on the lead screw and used for driving the lead screw to move up and down, and the lifter is connected with a motor which is arranged on the connecting frame and used for providing power through a coupler; a sealing pair for sealing is arranged in the valve port of the valve seat.
According to the further optimized technical scheme, a row of rollers which are convenient for the flashboard to move up and down are arranged on the inner walls of the two sides of the valve body.
Further optimizing technical scheme, the side of gyro wheel is provided with a row of eccentric wheel parallel with the gyro wheel on the valve body lateral wall, and the flashboard passes the gap between gyro wheel and the eccentric wheel.
According to the technical scheme, the screw is provided with a limit for limiting the up-and-down movement position of the screw.
According to the further optimized technical scheme, an adjusting bolt used for adjusting the position between the flashboard and the sealing pair is arranged at the bottom end of the valve seat, and the inner end of the adjusting bolt is propped against the sealing pair.
According to the further optimized technical scheme, the adjusting bolt is an eccentric adjusting bolt.
By adopting the technical scheme, the utility model has the following technical progress.
According to the double-screw gate valve, the gate plate is driven to move up and down through the two screw rods, so that the stress of the gate plate is more uniform, the gate plate can move up and down stably, the gate plate is prevented from deforming effectively, and the sealing effect of the gate valve and the service life of the gate valve are improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a side view of the present utility model.
Wherein: 1. valve body, 2, disk seat, 3, sealing pair, 4, adjusting bolt, 5, flashboard, 6, link, 7, lead screw, 8, motor, 9, shaft coupling, 10, lift, 11, stopper, 12, gyro wheel, 13, eccentric wheel.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific embodiments.
The utility model provides a double screw push-pull valve, combines the fig. 1 to 2 to show, includes valve body 1, is provided with disk seat 2 on the valve body 1, has seted up the valve port on the disk seat 2, is provided with flashboard 5 in the valve body 1 for open and close the valve port.
The valve seat 2 is provided with a connecting frame 6, two parallel lead screws 7 are arranged on the connecting frame 6 in a penetrating way, the end parts of the lead screws 7 are connected to the flashboard 5, and the lead screws 7 rotate to drive the flashboard 5 to move up and down so as to realize the opening and closing of the valve port.
The connecting frame 6 at the lead screw 7 is provided with a lifter 10, the lifter 10 is sleeved on the lead screw 7 and used for driving the square to move up and down, the connecting frame 6 is also provided with a motor 8, a shaft coupling 9 is arranged on a motor shaft of the motor 8, and the shaft coupling 9 is connected with the lifter 10 and used for providing power for the lifter 10 and driving the lead screw to move up and down. The motor 8 drives the coupler 9 to rotate through the motor shaft, the coupler 9 drives the screw rod to move up and down through the lifter 10, and the screw rod moves up and down to drive the flashboard to move up and down.
A sealing pair 3 is arranged in the valve port of the valve seat 2 and is used for improving the sealing effect between the flashboard 5 and the valve seat 2. The bottom of disk seat 2 is provided with adjusting bolt 4 for adjust the flashboard 5 and seal between the vice 3 position, improve sealed effect.
The adjusting bolt 4 is an eccentric bolt, the inner end of the adjusting bolt 4 is propped against the sealing pair 3, and the sealing effect between the flashboard and the sealing pair is adjusted through the adjusting bolt.
A row of rollers 12 are arranged on the inner walls of the two sides of the valve body 1, the flashboard 5 is arranged on the rollers 12, and the flashboard 5 moves up and down along the rollers 12, so that the flashboard 5 can move up and down conveniently.
A row of eccentric wheels 13 are arranged beside the idler wheels 12 on the side wall of the valve body 1, the eccentric wheels are arranged in parallel with the idler wheels, the flashboard 5 penetrates through a gap between the idler wheels 12 and the eccentric wheels 13, the flashboard 5 can move up and down conveniently, the flashboard 5 is limited, and the flashboard is prevented from deflecting in the up and down moving process.
The eccentric wheel 13 is adopted for limiting, so that the device can be suitable for flashboards with different thicknesses, and the eccentric wheel of the eccentric shaft can be adjusted according to the flashboards with different thicknesses, so that the applicability is stronger.
The screw rod 7 is provided with a limiting block 11 for limiting the up-and-down moving position of the screw rod 7 and preventing the flashboard 5 from moving out of the valve body 1.
When the gate valve is opened, the motor drives the lifter to act through the coupler, the screw rod is driven to move upwards, the screw rod moves upwards to drive the gate plate to move upwards, and the gate valve is opened; when the gate valve is closed, the motor drives the lifter to act through the coupler, the screw rod is driven to move downwards, the screw rod moves downwards to drive the gate plate to move downwards, and the gate valve is closed.
Claims (6)
1. A double-screw gate valve comprises a valve body (1) with a valve seat (2) at the lower part, wherein a gate plate (5) is arranged in the valve body (1); the method is characterized in that: the valve body (1) is provided with a connecting frame (6), two parallel lead screws (7) are arranged on the connecting frame (6) in a penetrating way, and the end parts of the lead screws (7) are connected to the flashboard (5); a connecting frame (6) positioned at the lead screw (7) is provided with a lifter (10) sleeved on the lead screw (7) and used for driving the lead screw to move up and down, and the lifter (10) is connected with a motor (8) which is arranged on the connecting frame (6) and used for providing power through a coupler (9); a sealing pair (3) for sealing is arranged in the valve port of the valve seat (2).
2. The dual screw gate valve of claim 1, wherein: a row of rollers (12) which are convenient for the flashboard (5) to move up and down are arranged on the inner walls of the two sides of the valve body (1).
3. A dual screw gate valve as defined in claim 2, wherein: a row of eccentric wheels (13) parallel to the roller wheels (12) are arranged beside the roller wheels (12) on the side wall of the valve body (1), and the flashboard (5) penetrates through a gap between the roller wheels (12) and the eccentric wheels (13).
4. The dual screw gate valve of claim 1, wherein: a limiting block (11) for limiting the up-and-down moving position of the screw rod (7) is arranged on the screw rod (7).
5. The dual screw gate valve of claim 1, wherein: the bottom of disk seat (2) is provided with adjusting bolt (4) that are used for adjusting the position between flashboard (5) and the sealed pair (3), and the inner top of adjusting bolt (4) is connected on sealed pair (3).
6. The dual screw gate valve of claim 5, wherein: the adjusting bolt (4) is an eccentric adjusting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321739848.7U CN220470661U (en) | 2023-07-05 | 2023-07-05 | Double-screw gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321739848.7U CN220470661U (en) | 2023-07-05 | 2023-07-05 | Double-screw gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220470661U true CN220470661U (en) | 2024-02-09 |
Family
ID=89779551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321739848.7U Active CN220470661U (en) | 2023-07-05 | 2023-07-05 | Double-screw gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220470661U (en) |
-
2023
- 2023-07-05 CN CN202321739848.7U patent/CN220470661U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |