A valve sealing gland

Abstract

This utility model discloses a valve sealing gland, belonging to the technical field of valve sealing glands. It solves the problem that existing devices require disassembling the bolts connecting the body to the valve to adjust the knob of a butterfly valve, which is cumbersome to use. Furthermore, the polycarbonate body is easily scratched, making it difficult to observe the knob's position. The new device includes a body with a through groove in the center of its top surface. A sealing component is installed in the receiving hole. An annular connecting plate, coaxial with the through groove, is fixedly connected to the center of the top surface of the body. A protective cover is threaded onto the outer surface of the annular connecting plate. An observation hole is provided on the top surface of the protective cover. A pad is fixedly fitted at the bottom of the outer surface of the protective cover. An annular rubber pad is fixedly installed on the bottom surface of the pad. The body is connected to the valve by bolts passing through the receiving hole and the through hole, achieving the purpose of facilitating knob adjustment and observation.

Description

Technical Field

[0001] This utility model relates to the field of valve sealing gland technology, specifically a valve sealing gland. Background Technology

[0002] A butterfly valve is a type of valve that opens and closes by rotating a disc-shaped closing element (butterfly plate) around a valve shaft. This type of valve has a simple structure and is easy to operate. There are two types of butterfly valve shafts: one is equipped with a metal cover, which requires removing the two bolts of the cover to check the valve position and then observing the knob angle; the other is exposed without a cover, allowing direct observation of the knob angle and its open / closed state.

[0003] A search revealed that patent application number 202223208295.0 discloses a transformer oil circuit valve cover, comprising a body and a protrusion located at the upper part of the center of the body. The body has a through hole, and a stepped structure is provided in the through hole. A gasket is provided on the stepped structure. A square groove is provided in the protrusion. Both the body and the protrusion are made of polycarbonate.

[0004] Although the transformer oil circuit valve cover utilizes the transparency of polycarbonate material, allowing observation of the valve's opening and closing status without disassembling the cover, adjusting the butterfly valve knob requires disassembling each bolt connecting the valve body to the cover, adjusting the knob, and then re-tightening the bolts. This cumbersome process is not only time-consuming and labor-intensive but also increases the risk of operational errors. In emergency situations, it may even delay the optimal timing for equipment control, severely impacting equipment operating efficiency and emergency response capabilities. Furthermore, while the polycarbonate body possesses a certain degree of strength and transparency, its surface hardness is relatively low, making it easily scratched by sharp objects or rough surfaces during daily use, handling, or installation. As scratches accumulate, the body's light transmittance is significantly affected, making it difficult for operators to clearly observe the knob's operating status and accurately determine the butterfly valve's opening and closing degree. This, in turn, affects the accuracy of fluid medium control, posing potential safety hazards to equipment operation.

[0005] Therefore, we propose a valve sealing gland. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a valve sealing gland, which solves the problem that existing devices require the bolts connecting the body and the valve to be removed before the butterfly valve knob can be adjusted, making them cumbersome to use. Furthermore, the polycarbonate body is easily scratched, making it difficult to observe the knob's status.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a valve sealing gland, including a body, a through groove is provided in the middle of the top surface of the body, a receiving hole is provided on both the left and right sides of the top surface of the body, a through hole is provided in the middle of the bottom surface of the receiving hole, and a sealing gasket is provided on the bottom surface of the body.

[0008] A sealing component is provided in the storage hole. An annular connecting plate coaxially arranged with the through groove is fixedly connected to the middle of the top surface of the main body. A protective cover is threaded onto the outer surface of the annular connecting plate. An observation hole is provided on the top surface of the protective cover. Tempered glass is glued to the inner wall of the observation hole. A pad is fixedly installed at the bottom of the outer surface of the protective cover. A ring-shaped rubber pad is fixedly installed on the bottom surface of the pad.

[0009] Preferably, the inner diameter of the annular connecting plate is the same as the diameter of the through groove, and the outer surface of the protective cover is provided with anti-slip grooves arranged in an annular array, wherein the anti-slip grooves facilitate the increase of friction on the outer surface of the observation hole.

[0010] Preferably, the body, the annular connecting plate, and the protective cover are all made of stainless steel, which is hard, corrosion-resistant, and has a long service life.

[0011] Preferably, the sealing component includes an annular gasket and a circular gasket. The outer diameter of the annular gasket is the same as the inner diameter of the receiving hole. The circular gasket is fixedly installed on the top surface of the annular gasket. The annular gasket fills the inside of the receiving hole, and the circular gasket covers the top surface of the annular gasket, which can prevent external rainwater or oil from contacting the bolt located in the receiving hole and prevent the bolt from being corroded by external rainwater or oil.

[0012] Preferably, the top surface of the circular pad is arc-shaped, and the annular pad and the circular pad are integrally molded rubber materials. The high elasticity of the rubber material allows the sealing component to fill the inside of the storage hole, thereby preventing rainwater or oil from entering the inside of the storage hole.

[0013] This utility model provides a valve sealing gland. It has the following beneficial effects:

[0014] 1. The valve sealing gland connects the body to the valve via bolts passing through the receiving hole and through hole. The valve knob passes through the through groove and annular connecting plate. The protective cover is then threaded onto the outer surface of the annular connecting plate to protect the valve knob and prevent accidental activation. The rotation angle of the knob can be observed through the observation hole. The valve knob can be adjusted by unscrewing the protective cover off the annular connecting plate without disassembling the bolts connecting the body to the valve. This achieves the purpose of facilitating knob angle adjustment and observation. It is simple and convenient to use, solving the problem that existing devices require disassembling the bolts connecting the body to the valve to adjust the butterfly valve knob, which is more troublesome to use. In addition, the polycarbonate body is easily scratched, making it difficult to observe the knob status.

[0015] 2. The valve sealing gland, by snapping an annular gasket into the inside of the receiving hole and using a circular gasket to shield the top surface of the receiving hole and the annular gasket, can prevent external rainwater or oil from contacting the bolts inside the receiving hole, thus preventing bolt corrosion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the protective cover structure of this utility model.

[0019] In the diagram: 1. Body; 11. Through groove; 12. Storage hole; 13. Through hole; 2. Annular connecting plate; 3. Protective cover; 31. Observation hole; 32. Anti-slip groove; 33. Pad plate; 34. Rubber pad; 4. Sealing component; 41. Annular pad; 42. Circular pad; 5. Sealing gasket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] like Figure 1-3As shown: The system includes a main body 1. A through groove 11 is formed through the center of the top surface of the main body 1. Receiving holes 12 are formed on both the left and right sides of the top surface of the main body 1. A through hole 13 is formed through the center of the bottom surface of the receiving hole 12. A sealing gasket 5 is provided on the bottom surface of the main body 1. A sealing component 4 is provided in the receiving hole 12. An annular connecting plate 2, coaxially arranged with the through groove 11, is fixedly connected to the center of the top surface of the main body 1. A protective cover 3 is threaded onto the outer surface of the annular connecting plate 2. An observation hole 31 is formed on the top surface of the protective cover 3. Tempered glass is glued to the inner wall of the observation hole 31. A pad 33 is fixedly fitted to the bottom end of the outer surface of the protective cover 3. An annular rubber pad 34 is fixedly installed on the bottom surface of the pad 33. The inner diameter of the annular connecting plate 2 is the same as the diameter of the through groove 11. The outer surface has anti-slip grooves 32 arranged in a ring array. The body 1, the ring connecting plate 2, and the protective cover 3 are all made of stainless steel. The body 1 is connected to the valve by bolts passing through the storage hole 12 and the through hole 13. The valve knob passes through the through groove 11 and the ring connecting plate 2. Then, the protective cover 3 is threaded onto the outer surface of the ring connecting plate 2 to protect the valve knob and prevent accidental operation. The rotation angle of the knob can be observed through the observation hole 31. The valve knob can be adjusted by unscrewing the protective cover 3 from the ring connecting plate 2 without disassembling the bolts connecting the body 1 and the valve. Then, the protective cover 3 is threaded onto the ring connecting plate 2. This achieves the purpose of facilitating the adjustment and observation of the knob angle, making it simple and convenient to use.

[0023] Example 2:

[0024] like Figure 1-2 As shown: The sealing component 4 includes an annular gasket 41 and a circular gasket 42. The outer diameter of the annular gasket 41 is the same as the inner diameter of the receiving hole 12. The circular gasket 42 is fixedly installed on the top surface of the annular gasket 41. The top surface of the circular gasket 42 is arc-shaped. The annular gasket 41 and the circular gasket 42 are made of one-piece molded rubber material. By snapping the annular gasket 41 into the inside of the receiving hole 12 and shielding the top surface of the receiving hole 12 and the annular gasket 41 with the circular gasket 42, external rainwater or oil can be prevented from contacting the bolts inside the receiving hole 12, thus preventing the bolts from being corroded.

[0025] The working principle and usage process of this utility model: When using this valve sealing cover, the main body 1 is connected to the valve by using bolts through the receiving hole 12 and the through hole 13, so that the valve knob passes through the through groove 11 and the annular connecting plate 2. Then, the protective cover 3 is threaded onto the outer surface of the annular connecting plate 2 to protect the valve knob and prevent accidental touch. The rotation angle of the knob can be observed through the observation hole 31. When it is necessary to manually adjust the knob angle, the protective cover 3 can be unscrewed from the annular connecting plate 2 to adjust the valve knob. Then, the protective cover 3 is threaded onto the annular connecting plate 2. The annular gasket 41 is snapped into the inside of the receiving hole 12, and the circular gasket 42 covers the top surface of the receiving hole 12 and the annular gasket 41, which can prevent external rainwater or oil stains from contacting the bolts inside the receiving hole 12 and prevent the bolts from being corroded.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve sealing gland, comprising a body (1), wherein a through groove (11) is provided through the middle of the top surface of the body (1), and a receiving hole (12) is provided on both the left and right sides of the top surface of the body (1), and a through hole (13) is provided through the middle of the bottom surface of the receiving hole (12), and a sealing gasket (5) is provided on the bottom surface of the body (1). Its features are: A sealing component (4) is provided in the storage hole (12). An annular connecting plate (2) coaxially arranged with the through groove (11) is fixedly connected to the middle of the top surface of the body (1). A protective cover (3) is threaded on the outer surface of the annular connecting plate (2). An observation hole (31) is opened on the top surface of the protective cover (3). Tempered glass is glued to the inner wall of the observation hole (31). A pad (33) is fixedly installed on the bottom of the outer surface of the protective cover (3). A ring-shaped rubber pad (34) is fixedly installed on the bottom surface of the pad (33).

2. A valve sealing gland according to claim 1, characterized in that: The inner diameter of the annular connecting plate (2) is the same as the diameter of the through groove (11), and the outer surface of the protective cover (3) is provided with anti-slip grooves (32) arranged in an annular array.

3. A valve sealing gland according to claim 1, characterized in that: The main body (1), the annular connecting plate (2) and the protective cover (3) are all made of stainless steel.

4. A valve sealing gland according to claim 1, characterized in that: The sealing component (4) includes an annular gasket (41) and a circular gasket (42). The outer diameter of the annular gasket (41) is the same as the inner diameter of the receiving hole (12). The circular gasket (42) is fixedly installed on the top surface of the annular gasket (41).

5. A valve sealing gland according to claim 4, characterized in that: The top surface of the circular pad (42) is arc-shaped, and the annular pad (41) and the circular pad (42) are integrally molded rubber materials.

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