CN-224229289-U - Double-opening gate valve

CN224229289UCN 224229289 UCN224229289 UCN 224229289UCN-224229289-U

Abstract

The utility model discloses a double-opening gate valve which comprises a valve body, two door plate assemblies, two driving parts and a linkage mechanism, wherein the two door plate assemblies are symmetrically arranged, one side of the valve body is provided with an opening, the other side of the valve body is provided with a mounting groove communicated with the opening, the axial direction of the opening is a first direction, the two door plate assemblies are slidably arranged in the mounting groove along a second direction, the second direction is perpendicular to the first direction, the two driving parts are respectively arranged on two opposite sides of the two door plate assemblies, the linkage mechanism is arranged between each driving part and the corresponding door plate assembly, and the linkage mechanism converts the linear motion of the output end of the driving part in the second direction into the compound motion of the door plate assemblies in the second direction and the first direction. The utility model has the advantages of short stroke, high efficiency, reliable sealing and strong driving force.

Inventors

KANG PINCHUN
HANG LE
XU ZHOUYI
LU QIAO
RUAN YUJIAO
TANG ZHUOJUN
ZHANG CHENTAO

Assignees

厦门市计量检定测试院
厦门大学

Dates

Publication Date: 20260512
Application Date: 20250512

Claims (9)

1. A double-opening gate valve is characterized by comprising a valve body, two door plate assemblies, two driving parts and a linkage mechanism, wherein the two door plate assemblies are symmetrically arranged, one side of the valve body is provided with an opening, the other side of the valve body is provided with a mounting groove communicated with the opening, the axial direction of the opening is in a first direction, the two door plate assemblies are slidably arranged in the mounting groove along a second direction, the second direction is perpendicular to the first direction, the two driving parts are respectively arranged on two opposite sides of the two door plate assemblies, the linkage mechanism is arranged between each driving part and the corresponding door plate assembly, the linkage mechanism converts the linear motion of the output end of the driving part in the second direction into the compound motion of the door plate assemblies in the second direction and the first direction, wherein when the output ends of the two driving parts move in opposite directions, the linkage mechanism drives the two door plate assemblies to move in opposite directions along the second direction to close the opening, and the other side of the two door plate assemblies move in opposite directions along the second direction of the valve body is pressed on the inner wall of the valve body.
2. The dual-opening gate valve of claim 1, wherein the linkage mechanism comprises a transverse plate, a pushing rod and a vertical rod, the transverse plate is connected to the door plate assembly and is provided with a guide groove, the guide groove extends along an inclined direction, one end of the pushing rod is connected with the output end of the driving piece, the other end of the pushing rod is rotationally connected with the vertical rod through a shaft coupling, and the vertical rod is in sliding fit in the guide groove.
3. The dual opening gate valve of claim 2 wherein the oblique direction is projected in the first direction to coincide with the second direction, and wherein one end of the guide slot adjacent the opposite side of the two door plate assemblies is remote from the opening and the other end is adjacent the opening.
4. The dual opening gate valve of claim 2, wherein the linkage mechanism further comprises a spacer disposed on both sides of the cross plate, the spacer being threadably coupled to the vertical rod.
5. The double-opening gate valve of claim 2, wherein the number of the transverse plates is two, the two transverse plates are oppositely arranged on the door plate assembly along a third direction, two ends of the vertical rod are respectively connected with the guide grooves of the two transverse plates in a sliding manner, the shaft is connected to the middle part of the vertical rod, and the third direction is perpendicular to the first direction and the second direction.
6. The dual-opening gate valve of claim 2, wherein the gate assembly comprises a first gate plate and a second gate plate disposed opposite each other along the first direction, and wherein two ends of the cross plate are fixedly connected to the first gate plate and the second gate plate, respectively.
7. The dual-opening gate valve of claim 1, wherein the opposite sides of the two door plate assemblies are respectively provided with a groove and a bump which are correspondingly arranged, and the bumps are in plug-in fit with the grooves when the two door plate assemblies close the opening.
8. The dual opening gate valve of claim 1, wherein the driving member is a cylinder.
9. The dual opening gate valve of claim 1, wherein the mounting slot has guide rails extending in the second direction and slidably engaging the two door plate assemblies.

Description

Double-opening gate valve Technical Field The utility model relates to the field of vacuum equipment, in particular to a double-opening gate valve for isolating a sample loading chamber from an ion transmission region and assisting in a vacuumizing process. Background In the operation of vacuum equipment such as a mass spectrometer, an electron microscope and other instruments, the gate valve is used for carrying the heavy duty of the isolation sample loading chamber and the ion transmission area, so that different areas can be ensured to be independently vacuumized, gas leakage is effectively prevented, and the vacuum degree of the system is maintained. However, the conventional gate valve mostly adopts a single-gate linear pushing structure, and the structure has obvious defects. On the one hand, the single door rectilinear motion makes the stroke that the valve opened or closed longer, and the valve action is consuming time, has greatly influenced the operating efficiency of equipment, is difficult to satisfy the demand of quick switch vacuum state. On the other hand, the sealing performance of the single door structure is limited, and in the long-term use process, the sealing is not tight easily due to the influence of factors such as abrasion, deformation and the like, so that the gas leakage of a vacuum system is caused, the normal operation of equipment is influenced, and the energy consumption and the time cost of vacuumizing are increased. In addition, the traditional gate valve is usually driven by a single power source, the driving force is relatively small, and in an application scene with high vacuum requirement, stable and reliable sealing effect is difficult to ensure. In view of the above, developing a gate valve with short stroke, high efficiency, reliable sealing and strong driving force becomes a key point for improving the performance of vacuum equipment. Disclosure of utility model Aiming at the technical problems existing in the prior art, the utility model provides a double-opening gate valve which has the advantages of short stroke, high efficiency, reliable sealing and strong driving force. The double-opening gate valve comprises a valve body, two gate plate assemblies symmetrically arranged, two driving parts and a linkage mechanism, wherein one side of the valve body is provided with an opening, the other side of the valve body is provided with a mounting groove communicated with the opening, the axial direction of the opening is a first direction, the two gate plate assemblies are slidably arranged in the mounting groove along a second direction, the second direction is perpendicular to the first direction, the two driving parts are respectively arranged on two opposite sides of the two gate plate assemblies, the linkage mechanism is arranged between each driving part and the corresponding gate plate assembly, the linkage mechanism converts the linear motion of the output end of the driving part in the second direction into the compound motion of the gate plate assemblies in the second direction and the first direction, when the output ends of the two driving parts move oppositely along the second direction, the linkage mechanism drives the two gate plate assemblies to move oppositely along the second direction to close the opening, and when the output ends of the two driving parts move oppositely along the second direction, the linkage mechanism drives the two gate plate assemblies to move oppositely along the second direction to open the valve body. Further, the link gear includes diaphragm, catch bar and montant, the diaphragm is connected on the door plant subassembly and be equipped with the guide way, the guide way extends along the incline direction, the one end of catch bar with the output of driving piece is connected, the other end through the shaft coupling with the montant rotates to be connected, montant sliding fit is in the guide way. Further, the projection of the inclined direction in the first direction is consistent with the projection of the inclined direction in the second direction, one end, close to the opposite sides of the two door plate assemblies, of the guide groove is far away from the opening, and the other end is close to the opening. Further, the linkage mechanism further comprises gaskets arranged on two sides of the transverse plate, and the gaskets are in threaded connection with the vertical rods. Further, the number of the transverse plates is two, the two transverse plates are oppositely arranged on the door plate assembly along a third direction, two ends of the vertical rod are respectively connected with the guide grooves of the two transverse plates in a sliding mode, the shaft is connected to the middle of the vertical rod, and the third direction is perpendicular to the first direction and the second direction respectively. Further, the door plate assembly comprises a first door plate and a second door plate which are oppositely arrange