Gate valve with high sealing performance

Abstract

The utility model belongs to the technical field of gate valves, and particularly relates to a high-sealing gate valve which comprises a valve body, a through groove is formed in the side wall of the valve body, a rotating shaft is hinged in the through groove, the two ends of the rotating shaft extend out of the valve body to be connected with a driving mechanism, a turning plate is connected to the side wall of the rotating shaft, and the turning plate is connected with the valve body. The turning plate can rotate to be vertical so as to seal the opening of the process chamber, the top of the through groove is connected with at least one limiting block, and the side wall of the limiting block abuts against the side wall of the rotating shaft all the time so as to prevent the rotating shaft from being bent; the turning plate is rotationally arranged in the through groove, when the turning plate rotates to the vertical state, the turning plate abuts against the inlet and outlet of the process chamber to complete sealing of the inlet and outlet, the top of the through groove is provided with the limiting block, the side wall of the limiting block abuts against the rotating shaft all the time, and the situation that when the rotating shaft is stressed, bending deformation is caused due to flexibility of the rotating shaft, and air leakage of the process chamber is caused is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve gates, and particularly relates to a valve gate with high sealing performance. Background Art

[0002] During the manufacturing process of solar cells, it is necessary to perform vacuum coating on the substrate. The existing vacuum coating equipment includes a process chamber. An access opening is provided on the side wall of the process chamber, and a valve gate assembly is arranged on the side of the access opening. The access opening is sealed by a flap to ensure the sealing performance of the process chamber. The flap is usually connected to a rotating shaft, and the flap is pressed against the access opening by the rotation of the rotating shaft. However, the rotating shaft has flexibility, and its middle part is prone to deformation and bending, resulting in the flap being unable to tightly press the access opening and causing air leakage in the process chamber.

[0003] Therefore, how to avoid air leakage in the process chamber is a technical problem that needs to be urgently solved in this field. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a valve gate with high sealing performance.

[0005] To solve the above technical problem, the utility model provides a valve gate with high sealing performance, including: a valve body, a through groove is provided on the side wall of the valve body, a rotating shaft is hinged in the through groove, both ends of the rotating shaft extend out of the valve body to connect a driving mechanism, a flap is connected to the side wall of the rotating shaft, the flap can rotate to be vertical to seal the opening of the process chamber, and at least one limiting block is connected to the top of the through groove, and the side wall of the limiting block always abuts against the side wall of the rotating shaft to prevent the rotating shaft from bending.

[0006] Preferably, one side wall of the limiting block is a plane and is tangent to the side wall of the rotating shaft.

[0007] Preferably, the limiting block is a cuboid, and it is installed on the top of the through groove by bolts, and the bottom of the limiting block is lower than the horizontal plane where the axis of the rotating shaft is located, so that the side wall of the limiting block is tangent to the side wall of the rotating shaft.

[0008] Preferably, a plurality of connecting blocks are integrally arranged on the side wall of the rotating shaft, and the flap is connected to the connecting blocks by bolts.

[0009] Preferably, a sealing member is sleeved on the outer side of the flap.

[0010] Preferably, an annular insertion groove is provided on the side wall of the flap, and an insertion strip adapted to the insertion groove is provided on the sealing member to limit the sealing member.

[0011] Preferably, the mouth of the insertion groove is provided with a constriction to clamp the insertion strip.

[0012] Preferably, an installation notch is formed at the top of the through groove, and the installation notch penetrates through the side wall of the valve body, and the rotating shaft is clamped in the installation notch.

[0013] Preferably, the valve body includes a plurality of supporting plates connected end to end, and the supporting plates are welded to form a through groove.

[0014] Preferably, the driving mechanism includes a bracket and a driving cylinder; the brackets are respectively arranged at the bottom of the valve body, the driving cylinder is installed at the bottom of the bracket, the piston rod of the driving cylinder penetrates through the bracket, a connecting rod is arranged at the extending end of the rotating shaft, and the connecting rod is hinged to the piston rod of the driving cylinder.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The flap is rotatably arranged in the through groove. When the flap is rotated to the vertical state, the flap abuts against the inlet and outlet of the process chamber to complete the sealing of the inlet and outlet. And a limiting block is arranged at the top of the through groove, and the side wall of the limiting block always abuts against the rotating shaft, avoiding the bending deformation of the rotating shaft due to its flexibility when the rotating shaft is stressed, resulting in air leakage of the process chamber.

[0017] Other features and advantages of the present utility model will be described in the following description, and in part, will be obvious from the description, or will be understood by implementing the present utility model.

[0018] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a perspective view of a preferred embodiment of the valve of the present utility model;

[0021] Figure 2 is a cross-sectional view of a preferred embodiment of the valve of the present utility model;

[0022] Figure 3 is a rear view of a preferred embodiment of the valve of the present utility model.

[0023] In the figure:

[0024] 1. Valve body; 11. Through groove; 111. Limit block; 112. Installation notch; 12. Rotating shaft; 121. Flap; 122. Plug-in groove; 123. Connecting rod; 13. Seal; 14. Support plate;

[0025] 2. Driving mechanism; 21. Bracket; 22. Driving cylinder. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 3 As shown, at least one embodiment provides a high-sealing gate valve, comprising: a valve body 1, a through groove 11 is formed on the side wall of the valve body 1, a rotating shaft 12 is hinged in the through groove 11, both ends of the rotating shaft 12 extend out of the valve body 1 to connect to the driving mechanism 2, a flap 121 is connected to the side wall of the rotating shaft 12, the flap 121 can be rotated to a vertical position to seal the opening of the process chamber, and at least one limit block 111 is connected to the top of the through groove 11, the limit block The side wall of 111 always presses against the side wall of the rotating shaft 12 to prevent the rotating shaft 12 from bending; in short, the flap 121 is rotatably set in the through groove 11, and when the flap 121 is rotated to a vertical state, the flap 121 presses against the entrance and exit of the process chamber to complete the sealing of the entrance and exit, and a limiting block 111 is set on the top of the through groove 11, and the side wall of the limiting block 111 always presses against the rotating shaft 12 to prevent the rotating shaft 12 from bending and deforming due to its flexibility when a force is applied, resulting in air leakage in the process chamber.

[0028] In some embodiments, one side wall of the limit block 111 is flat and tangent to the side wall of the rotating shaft 12; in short, the side wall of the limit block 111 is tangent to the side wall of the rotating shaft 12, so that the limit block 111 can provide good support for the rotating shaft 12.

[0029] In some embodiments, the limiting block 111 is a cuboid, which is installed at the top of the through groove 11 by bolts, and the bottom of the limiting block 111 is lower than the horizontal plane where the axis of the rotating shaft 12 is located, so that the side wall of the limiting block 111 is tangent to the side wall of the rotating shaft 12; In short, the limiting block 111 is designed as a cuboid, with a simple and reliable structure, which is convenient for production. The limiting block 111 is installed at the top of the through groove by bolts, with convenient installation. Moreover, the bottom of the limiting block 111 is lower than the horizontal plane where the axis of the rotating shaft 12 is located, ensuring that the limiting block 111 can provide good support for the rotating shaft 12.

[0030] In some embodiments, a plurality of connecting blocks are integrally arranged on the side wall of the rotating shaft 12, and the flap 121 is connected to the connecting blocks by bolts; In short, the flap 121 is connected to the connecting blocks by bolts, enabling the flap 121 to rotate with the rotating shaft 12, with a simple and reliable structure.

[0031] In some embodiments, a sealing member 13 is sleeved on the outer side of the flap 121; In short, the sealing member 13 is sleeved on the outer side of the flap 121. When the flap 121 rotates to the vertical state, the sealing member 13 can abut against the inlet and outlet of the process chamber to complete the sealing of the inlet and outlet.

[0032] In some embodiments, an annular insertion groove 122 is formed on the side wall of the flap 121, and an insertion strip adapted to the insertion groove 122 is provided on the sealing member 13 to limit the sealing member 13; In short, through the setting of the insertion groove 122, the insertion strip on the sealing member 13 can be clamped in the insertion groove 122, ensuring that the sealing member 13 will not shift during the rotation of the flap 121 and ensuring good sealing of the inlet and outlet of the process chamber.

[0033] In some embodiments, the mouth of the insertion groove 122 is provided with a constriction to clamp the insertion strip; In short, the insertion groove 122 with a constriction can clamp the insertion strip, ensuring that the sealing member 13 will not shift.

[0034] In some embodiments, an installation notch 112 is formed at the top of the through groove 11, and the installation notch 112 penetrates through the side wall of the valve body 1, and the rotating shaft 12 is clamped in the installation notch 112; In short, by setting the installation notch 112, the axis of the rotating shaft 12 can be raised to reduce the height of the limiting block 111, improve the strength of the limiting block 111, and ensure good support of the limiting block 111 for the rotating shaft 12.

[0035] In some embodiments, the valve body 1 includes a plurality of support plates 14 connected end to end, and the support plates 14 are welded together to form the through groove 11; In short, the support plates 14 are joined together by welding, with a simple and reliable structure.

[0036] In some embodiments, the driving mechanism 2 includes a bracket 21 and a driving cylinder 22; the bracket 21 is respectively disposed at the bottom of the valve body 1, the driving cylinder 22 is installed at the bottom of the bracket 21, the piston rod of the driving cylinder 22 penetrates through the bracket 21, an extension end of the rotating shaft 12 is provided with a connecting rod 123, and the connecting rod 123 is hinged to the piston rod of the driving cylinder 22; in short, the connecting rod 123 is hinged to the piston rod of the driving cylinder 22, and a kidney-shaped hole is provided at the hinge joint of the connecting rod 123 and the driving cylinder 22, and the rotating shaft 12 is driven to rotate by the up and down movement of the piston rod, and the structure is simple and reliable.

[0037] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] Based on the above inspiration from the ideal embodiments of the present invention, through the above description, relevant workers can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A high-sealing valve, characterized in that, Comprising: A valve body (1), a through groove (11) is formed in the side wall of the valve body (1), a rotating shaft (12) is hinged in the through groove (11), both ends of the rotating shaft (12) extend out of the valve body (1) to connect a driving mechanism (2), a flap (121) is connected to the side wall of the rotating shaft (12), and the flap (121) can rotate to the vertical to seal the opening of the process chamber, and At least one limiting block (111) is connected to the top of the through groove (11), and the side wall of the limiting block (111) always abuts against the side wall of the rotating shaft (12) to prevent the rotating shaft (12) from bending.

2. The highly-sealed valve gate according to claim 1, wherein One side wall of the limiting block (111) is a plane and is tangent to the side wall of the rotating shaft (12).

3. The highly-sealed valve gate according to claim 2, wherein The limiting block (111) is a cuboid, which is installed on the top of the through groove (11) by bolts, and the bottom of the limiting block (111) is lower than the horizontal plane where the axis of the rotating shaft (12) is located, so that the side wall of the limiting block (111) is tangent to the side wall of the rotating shaft (12).

4. The highly-sealed valve gate according to claim 1, wherein A plurality of connecting blocks are integrally arranged on the side wall of the rotating shaft (12), and the flap (121) is connected to the connecting blocks by bolts.

5. The highly-sealed valve gate according to claim 1, wherein A sealing member (13) is sleeved outside the flap (121).

6. The highly-sealed valve gate according to claim 5, wherein An annular insertion groove (122) is formed in the side wall of the flap (121), and an insertion strip adapted to the insertion groove (122) is arranged on the sealing member (13) to limit the sealing member (13).

7. The highly-sealed valve gate according to claim 6, wherein The mouth of the insertion groove (122) is provided with a constriction to clamp the insertion strip.

8. The highly-sealed valve gate according to claim 1, wherein An installation notch (112) is formed in the top of the through groove (11), the installation notch (112) penetrates the side wall of the valve body (1), and the rotating shaft (12) is clamped in the installation notch (112).

9. The highly-sealed valve gate according to claim 1, wherein The valve body (1) comprises a plurality of support plates (14) connected end to end, and the support plates (14) are welded to form the through groove (11).

10. The highly-sealed valve gate according to claim 1, wherein The driving mechanism (2) comprises a bracket (21) and a driving cylinder (22); The brackets (21) are respectively arranged at the bottom of the valve body (1), the driving cylinder (22) is installed at the bottom of the bracket (21), the piston rod of the driving cylinder (22) penetrates the bracket (21), and a connecting rod (123) is arranged at the extending end of the rotating shaft (12), and the connecting rod (123) is hinged to the piston rod of the driving cylinder (22).

Images