Valve steam shielding equipment

Abstract

The utility model discloses valve steam shielding equipment, and belongs to the technical field of valves. The valve mainly comprises a valve body, a connecting plate is fixedly mounted at the upper end of the valve body, a fixed sliding rod is fixedly mounted at the upper end of the connecting plate, a rotating handle is rotatably connected to the upper end of the fixed sliding rod, a threaded bolt is fixedly mounted in the fixed sliding rod, and a threaded rod is in threaded connection to the middle of the rotating handle; a shielding valve plate is fixedly connected to the lower end of the threaded rod, a valve cavity is formed in the valve body, inflow pipes are fixedly installed on the two sides of the lower end of the valve body, a storage cavity is formed in the lower end of the valve cavity, a bidirectional air cylinder is fixedly installed at the bottom end of the storage cavity, and piston rods are fixedly installed on the two sides of the bidirectional air cylinder; a rubber valve plug is fixedly connected to the front end of the piston rod and extends into the inflow pipe. According to the valve steam shielding equipment, the effects that gas is completely exhausted, and the sealing performance is good are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of valve shielding, and more specifically, to a valve steam shielding device. Background Art

[0002] The shielding valve device of vacuum equipment refers to the vacuum system component used to change the direction of airflow, adjust the amount of airflow, and cut off or connect the pipeline in the vacuum system. The vacuum valve closing part is sealed with a rubber sealing ring or a metal sealing ring. The traditional shielding valve device of vacuum equipment has the advantages of simple structure and strong pressure resistance, but it still has its shortcomings. The traditional shielding valve device is not very sealed and is prone to steam reflux.

[0003] Therefore, it is necessary to provide a valve steam shielding device to solve the above problems. Utility Model Content

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present application is to provide a valve steam shielding device to achieve the effect of clean gas discharge and good sealing.

[0005] The technical solution adopted by the present application to solve its technical problems is: a valve steam shielding device, including a valve body, a connecting plate fixedly installed on the upper end of the valve body, a fixed sliding rod fixedly installed on the upper end of the connecting plate, a rotating handle rotatably connected to the upper end of the fixed sliding rod, a threaded bolt fixedly installed inside the fixed sliding rod, a threaded rod threadedly connected to the middle part of the rotating handle, the threaded rod and the threaded bolt are threadedly connected, a shielding valve plate is fixedly connected to the lower end of the threaded rod, and a valve cavity is opened inside the valve body.

[0006] Furthermore, the shape of the shielding valve plate is consistent with the shape and size of the cavity wall inside the valve cavity.

[0007] Furthermore, inlet pipes are fixedly installed on both sides of the lower end of the valve body, a storage cavity is opened at the lower end of the valve cavity, a two-way cylinder is fixedly installed on the bottom end of the storage cavity, piston rods are fixedly installed on both sides of the two-way cylinder, the front end of the piston rod is fixedly connected to a rubber valve plug, the rubber valve plug extends into the inlet pipe, and the front end of the inlet pipe on one side is rotatably connected to a flange interface.

[0008] Furthermore, a rubber exhaust plug is fixedly mounted on the lower end of the shielding valve plate.

[0009] Furthermore, an air inlet is fixedly connected to the upper end of the bidirectional cylinder, and the air inlet extends into the valve cavity through the storage cavity.

[0010] The beneficial effect of the utility model is that the threaded rod will move downward in the threaded bolt by rotating the handle, and the downward movement of the threaded rod drives the shielding valve plate to move downward, so as to isolate the valve cavity in the valve body and prevent airflow at both ends of the valve body from flowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 It is an overall schematic diagram of a valve steam shielding device in this application;

[0013] Figure 2 for Figure 1 The structural diagram on the left side of the middle;

[0014] In the figure: 1. valve body; 2. inlet pipe; 3. rotating handle; 4. threaded rod; 5. fixed sliding rod; 6. threaded bolt; 7. connecting plate; 8. shielding valve plate; 9. valve chamber; 10. storage chamber; 11. two-way cylinder; 12. piston rod; 13. rubber valve plug; 14. flange interface; 15. air inlet; 16. rubber exhaust plug. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0016] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0017] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0018] like Figure 1-2As shown, the present application provides a valve steam shielding device, including a valve body 1, a connecting plate 7 is fixedly installed on the upper end of the valve body 1, a fixed sliding rod 5 is fixedly installed on the upper end of the connecting plate 7, the upper end of the fixed sliding rod 5 is rotatably connected to a rotating handle 3, a threaded bolt 6 is fixedly installed inside the fixed sliding rod 5, a threaded rod 4 is threadedly connected to the middle part of the rotating handle 3, the threaded rod 4 is threadedly connected to the threaded bolt 6, a shielding valve plate 8 is fixedly connected to the lower end of the threaded rod 4, and a valve cavity 9 is opened inside the valve body 1.

[0019] The shape of the shielding valve plate 8 is consistent with the shape and size of the cavity wall inside the valve cavity 9.

[0020] An inlet pipe 2 is fixedly installed on both sides of the lower end of the valve body 1, a storage chamber 10 is opened at the lower end of the valve chamber 9, a two-way cylinder 11 is fixedly installed at the bottom end of the storage chamber 10, piston rods 12 are fixedly installed on both sides of the two-way cylinder 11, and a rubber valve plug 13 is fixedly connected to the front end of the piston rod 12. The rubber valve plug 13 extends into the inlet pipe 2, and a flange interface 14 is rotatably connected to the front end of the inlet pipe 2 on one side.

[0021] A rubber exhaust plug 16 is fixedly mounted on the lower end of the shielding valve plate 8 .

[0022] An air inlet 15 is fixedly connected to the upper end of the bidirectional cylinder 11 , and the air inlet 15 extends through the storage cavity 10 to the valve cavity 9 .

[0023] Specifically, the staff rotates the handle 3, and the handle 3 drives the threaded rod 4 to rotate. Since the threaded bolt 6 is fixed to the fixed sliding rod 5, the threaded rod 4 will move downward in the threaded bolt 6 through the rotation of the handle 3. The downward movement of the threaded rod 4 drives the shielding valve plate 8 to move downward, so as to isolate the valve cavity 9 in the valve body 1 and prevent the airflow at both ends of the valve body 1 from flowing. The rubber exhaust plug 16 at the lower end of the shielding valve plate 8 can squeeze a part of the air in the valve cavity 9 into the two-way cylinder 11 through the air inlet 15. The two-way cylinder 11 is started to suck the air in the valve cavity 9, driving the piston rods 12 on both sides to extend outward. The piston rod 12 extends outward and drives the rubber valve plug 13 to move toward the inlet pipe 2 to block the inlet pipe 2. The end of the flange interface 14 prevents the airflow in the equipment from flowing back, and the other side prevents the airflow from flowing back from the outside, thereby completing the shielding of the valve steam.

[0024] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0027] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0028] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A valve steam shielding device, characterized in that: The invention comprises a valve body (1), a connecting plate (7) being fixedly mounted on the upper end of the valve body (1), a fixed sliding rod (5) being fixedly mounted on the upper end of the connecting plate (7), the upper end of the fixed sliding rod (5) being rotatably connected to a rotating handle (3), a threaded bolt (6) being fixedly mounted inside the fixed sliding rod (5), a threaded rod (4) being threadedly connected to the middle part of the rotating handle (3), the threaded rod (4) being threadedly connected to the threaded bolt (6), a shielding valve plate (8) being fixedly connected to the lower end of the threaded rod (4), and a valve chamber (9) being provided inside the valve body (1).

2. A valve steam shielding device according to claim 1, characterized in that: The shape of the shielding valve plate (8) is consistent with the shape and size of the cavity wall inside the valve cavity (9).

3. A valve steam shielding device according to claim 1, characterized in that: Inlet pipes (2) are fixedly mounted on both sides of the lower end of the valve body (1); a storage chamber (10) is provided at the lower end of the valve chamber (9); a bidirectional cylinder (11) is fixedly mounted at the bottom end of the storage chamber (10); piston rods (12) are fixedly mounted on both sides of the bidirectional cylinder (11); a front end of the piston rod (12) is fixedly connected to a rubber valve plug (13); the rubber valve plug (13) extends into the inlet pipe (2); and a flange interface (14) is rotatably connected to the front end of the inlet pipe (2) on one side.

4. A valve steam shielding device according to claim 2, characterized in that: A rubber exhaust plug (16) is fixedly mounted on the lower end of the shielding valve plate (8).

5. A valve steam shielding device according to claim 3, characterized in that: The upper end of the bidirectional cylinder (11) is fixedly connected to an air inlet (15), and the air inlet (15) extends through the storage cavity (10) into the valve cavity (9).

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