Device capable of adjusting sealing performance of valve

Abstract

The device capable of adjusting the sealing performance of the valve comprises a valve body, valve connectors are arranged at the two ends of the valve body, a fixing base is arranged at the tops of the two valve connectors, a through hole is formed in the center of the top of the fixing base in a penetrating mode, the other end of the through hole is located on the inner sides of the valve connectors, and sealing plates are arranged on the inner sides of the valve connectors. The rotary knob is arranged in the center of the top of the fixing seat, the output end of the bottom of the rotary knob is connected with the connecting rod, and the other end of the connecting rod is connected with the sealing plate. When the knob is rotated, a certain angle is formed between the knob and the interior of the valve connector, when the rotating angle is large, the formed angle is also large, when the angle is large, the sealing performance of the valve is reduced, and otherwise, the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a device capable of adjusting the sealing performance of a valve. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems and have functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems.

[0003] At present, the sealing strip of the valve will be worn out during the long-term use of the valve, which will reduce the sealing performance of the valve and make leakage accidents more likely to occur. In severe cases, it is easy to cause certain risks, but replacing the sealing strip is relatively troublesome. Utility Model Content

[0004] The purpose of the utility model is to provide a device capable of adjusting the sealing performance of a valve, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device capable of adjusting the sealing performance of a valve, comprising a valve body, both ends of the valve body being valve interfaces, a fixing seat being arranged at the top of the two valve interfaces, a through hole being arranged through the top center of the fixing seat, the other end of the through hole being located on the inner side of the valve interface, a sealing plate being arranged on the inner side of the valve interface, a knob being arranged at the top center of the fixing seat, the bottom output end of the knob being connected to a connecting rod, the other end of the connecting rod being connected to the sealing plate, a sealing strip being arranged in front of the sealing plate, a fixing plate being arranged on the outer side of the sealing strip, the back side of the fixing plate being in contact with the valve interface, the fixing plate being fixedly connected to the surface of the valve interface by fastening bolts, and the diameter of the sealing plate matches the inner diameter of the valve interface.

[0006] Preferably, the outer surface of the sealing strip contacts the inner surface of the valve interface, the sealing strip is in the shape of a circular ring, and the outer diameter of the sealing strip matches the inner surface diameter of the valve interface.

[0007] Preferably, the height of the connecting rod matches the height of the through hole.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The utility model discloses a device capable of adjusting the sealing performance of a valve. The connecting rod is rotated by rotating a knob. The rotation of the connecting rod will rotate a sealing plate. After the sealing plate is rotated by a certain angle, a certain angle is formed between the sealing plate and the inside of the valve interface. When the rotating angle of the knob is large, the formed angle is also large. When the angle is large, the sealing performance of the valve becomes small, and vice versa.

[0010] The utility model discloses a device capable of adjusting the sealing performance of a valve. An existing sealing strip is fixedly connected to the surface of a valve interface by fastening bolts. When the sealing strip is worn, the sealing plate is rotated to a position of maximum sealing performance, and then the valve is disconnected and a new sealing strip is replaced, thereby making it easier to replace the sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a cross-sectional view of the valve interface of the utility model.

[0013] In the figure: 1. valve body; 2. valve interface; 3. fixing seat; 4. knob; 5. sealing strip; 6. fixing plate; 7. fastening bolt; 8. sealing plate; 9. connecting rod; 10. through hole. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0015] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention.

[0016] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] See also Figure 1-2 The utility model provides a technical solution: a device for adjusting the sealing performance of a valve, comprising a valve body 1, two ends of the valve body 1 are valve interfaces 2, a fixing seat 3 is arranged on the top of the two valve interfaces 2, a through hole 10 is arranged through the top center of the fixing seat 3, the other end of the through hole 10 is located on the inner side of the valve interface 2, a sealing plate 8 is arranged on the inner side of the valve interface 2, a knob 4 is arranged on the top center of the fixing seat 3, the bottom output end of the knob 4 is connected to a connecting rod 9, the other end of the connecting rod 9 is connected to the sealing plate 8, a sealing strip 5 is arranged in front of the sealing plate 8, a fixing plate 6 is arranged on the outer side of the sealing strip 5, the back side of the fixing plate 6 is in contact with the valve interface 2, the fixing plate 6 is fixedly connected to the surface of the valve interface 2 by a fastening bolt 7, the diameter of the sealing plate 8 matches the inner diameter of the valve interface 2, the sealing plate 8 mainly starts the sealing function, and the angle between the sealing plate 8 and the vertical plane can be changed by rotating the knob 4.

[0018] Furthermore, the outer surface of the sealing strip 5 contacts the inner surface of the valve interface 2. The sealing strip 5 is in the shape of a circular ring. The outer diameter of the sealing strip 5 matches the inner surface diameter of the valve interface 2. The sealing strip 5 is the prior art for sealing the valve and will not be described in detail here.

[0019] Furthermore, the height of the connecting rod 9 matches the height of the through hole 10 .

[0020] Working principle: During use, the connecting rod 9 is rotated by rotating the knob 4. The rotation of the connecting rod 9 will rotate the sealing plate 8. After the sealing plate 8 rotates a certain angle, it will form a certain angle with the inside of the valve interface 2. When the knob 4 is rotated, the larger the angle, the larger the angle formed. When the angle is large, the sealing performance of the valve body 1 becomes smaller, and vice versa.

[0021] It should be noted that the rotation angle of the knob 4 in the above process depends on the contact between the surface of the sealing plate 8 and the inner surface of the valve interface 2 before the knob 4 rotates. At this time, the rotation angle is the above-mentioned rotation angle.

[0022] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device capable of adjusting the sealing performance of a valve, comprising a valve body (1), characterized in that: The two ends of the valve body (1) are valve interfaces (2), and the tops of the two valve interfaces (2) are provided with fixing seats (3), and the top center of the fixing seats (3) is provided with a through hole (10), and the other end of the through hole (10) is located on the inner side of the valve interface (2), and the inner side of the valve interface (2) is provided with a sealing plate (8), and the top center of the fixing seat (3) is provided with a knob (4), and the bottom output end of the knob (4) is connected to a connecting rod (9), and the other end of the connecting rod (9) is connected to the sealing plate (8), and a sealing strip (5) is provided in front of the sealing plate (8), and a fixing plate (6) is provided on the outer side of the sealing strip (5), and the back side of the fixing plate (6) is in contact with the valve interface (2), and the fixing plate (6) is fixedly connected to the surface of the valve interface (2) by a fastening bolt (7), and the diameter of the sealing plate (8) matches the inner diameter of the valve interface (2).

2. A device capable of adjusting valve sealing performance according to claim 1, characterized in that: The outer surface of the sealing strip (5) contacts the inner surface of the valve interface (2); the sealing strip (5) is in the shape of a circular ring; and the outer diameter of the sealing strip (5) matches the inner surface diameter of the valve interface (2).

3. The device for adjusting valve sealing performance according to claim 1, characterized in that: The height of the connecting rod (9) matches the height of the through hole (10).

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