Blind blocking piece of flange valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a flange valve blind blocking piece which comprises a blocking piece body, a mounting table, a sealing gasket, an adjusting piece, a positioning assembly and a supporting assembly. The blocking piece is installed on the valve, sealing gaskets are embedded in the two sides of the installation table, and the sealing gaskets are matched with the limiting grooves through embedded parts to ensure stable connection. The adjusting piece penetrates through the adjusting groove and is connected with the positioning assembly, the positioning assembly comprises a positioning column, a blocking piece and a nut, and the adjusting piece is fixed by screwing the nut through threads; the supporting assembly comprises a vertical plate, a bayonet socket and an arc-shaped seat, the supporting assembly is supported on the outer side face of the valve through the arc-shaped seat, it is ensured that the position of the blocking piece is stable, the installation precision and the sealing effect are improved, and the problems that in the prior art, a sealing gasket is not stable in connection, and the blocking piece deviates during installation are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a blind plug for a flange valve. Background Art

[0002] Flange valves are common control components in industrial piping systems, widely used to shut off, regulate, and guide fluids. To temporarily shut off pipeline flow during maintenance or operational procedures, blind plugs are required. However, existing blind plugs often face technical difficulties during installation, impacting their effectiveness and safety.

[0003] For example, geothermal heat pump air conditioning systems are typically equipped with valve groups for switching between winter and summer operating conditions. Each season requires switching valves to switch the heat pump system between hot and cold operating conditions. Most valves fail to close properly after a few cycles, leading to water leakage between the terminal and the heat source. If the heat source is well water or lake water, the terminal will continuously replenish water, causing the unit to malfunction, wasting energy and water, and even damaging the unit and other equipment. If the heat source is an underground pipe, low-pressure operation on the ground source side cannot be guaranteed, increasing the risk of underground pipe rupture. Many underground pipes cannot be found after a rupture, resulting in irreparable damage. To resolve these problems, valve replacement is usually necessary, but valve groups contain multiple valves, making it difficult to determine which valve is leaking properly. This makes valve replacement costly and difficult, and the replaced valve may still not close properly.

[0004] During installation, existing blind plugs often lack a secure connection between the gasket and mounting platform. This can lead to misalignment during valve installation, resulting in reduced sealing performance and potential leakage. Furthermore, the lack of effective positioning and support mechanisms during adjustment and securing of existing blind plugs can easily cause the plug to shift during installation, compromising installation precision and sealing effectiveness.

[0005] Blind plugs offer significant advantages in these applications due to their ease of installation, time-saving, low-cost, minimal workload, and immediate effectiveness. For example, existing techniques typically use bolts and nuts to secure blind plugs directly. However, this approach fails to ensure accurate positioning and securing of the gasket, and can easily lead to seal failure due to installation errors. Furthermore, the lack of effective support and positioning during valve closing makes it difficult to maintain a stable position of the plug, adding complexity and uncertainty to installation and use. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a blind plug for a flange valve, which can improve the installation accuracy and sealing effect of the blind plug.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A blind plug for a flange valve, comprising a plug, which is mounted on the valve and has mounting platforms on both sides thereof, with sealing gaskets embedded on the sides of the mounting platforms;

[0009] An adjusting member is fixedly connected to the top of the mounting platform, and an adjusting slot is formed through the side of the adjusting member;

[0010] The adjusting groove is connected with a positioning component;

[0011] The positioning assembly includes a positioning column that passes through the adjustment slot, a blocking piece is fixedly connected to the positioning column, and a nut is connected to the positioning column;

[0012] Support components are provided at both ends of the positioning column.

[0013] Furthermore, the number of the mounting platforms is set to be multiple, and the multiple mounting platforms have different sizes and are coaxially arranged.

[0014] Furthermore, a limiting groove is provided on the side of the mounting platform, and an embedded piece adapted to the limiting groove is fixedly connected to the side of the sealing gasket.

[0015] Furthermore, a positioning ring is fixedly connected to the side of the mounting platform.

[0016] Furthermore, one side of the baffle is fixedly connected to a limit block, and the limit block is embedded in the adjustment slot;

[0017] The outer side of the positioning column is provided with a thread.

[0018] Furthermore, the support assembly includes a vertical plate, a top side of the vertical plate is fixedly connected to a socket, and one end of the positioning column is inserted into the socket.

[0019] Furthermore, the bottom end of the vertical plate is fixedly connected with an arc-shaped seat.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The flange valve blind plug of the present invention solves the problem of unstable connection between the sealing gasket and the mounting platform in the prior art. The sealing gasket is embedded in the limiting groove of the mounting platform through the insert on it. The cooperation between the limiting groove and the insert ensures a stable connection between the sealing gasket and the mounting platform, avoiding misalignment between the sealing gasket and the mounting platform during the process of installing the plug on the valve, thereby effectively avoiding the risk of leakage caused by sealing failure.

[0022] The utility model features multiple mounting platforms of varying sizes, coaxially arranged, allowing for selection of the appropriate mounting platform based on the size and requirements of the valve. This design improves the versatility and applicability of flange valve blind plugs, better meeting the needs of diverse application scenarios and reducing installation issues caused by valve size mismatches.

[0023] The positioning assembly, through the coordination of the positioning post, retaining plate, and nut on the adjustment slot, secures the adjusting piece to the valve. Specifically, the positioning post features threads on its outer side. By tightening the nut, the adjusting piece is securely fixed between the retaining plate and nut, providing reliable support and fixation. This structural design ensures that the blind plug remains in a stable position during installation and use, preventing it from shifting, thereby improving installation accuracy and sealing effectiveness.

[0024] The support assembly consists of a vertical plate, a socket, and a curved seat. One end of the vertical plate is inserted into the socket, supported by the curved seat on the outer side of the valve, further ensuring the precise and stable installation of the blind plug. The curved seat, through its curved structure, provides stable support, preventing the blind plug from shifting during valve closing. This improves the blind plug's installation accuracy and sealing effectiveness, ensuring the safety and reliability of the valve during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the plug of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the sealing gasket of the utility model;

[0028] Figure 4 This is a schematic structural diagram of the positioning assembly of the utility model;

[0029] Figure 5 This is a structural diagram of the support assembly of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1. Blocking piece; 11. Mounting platform; 111. Limiting groove; 112. Positioning ring; 12. Adjusting piece; 121. Adjusting groove;

[0032] 2. Sealing gasket; 21. Insert;

[0033] 3. Positioning assembly; 31. Positioning column; 32. Block; 321. Limit block; 33. Thread; 34. Nut;

[0034] 4. Support assembly; 41. Vertical plate; 42. Plug socket; 43. Arc seat. DETAILED DESCRIPTION

[0035] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0036] See Figure 1-5 , flange valve blind plug, including plug 1, plug 1 is installed on the valve, and both sides of the plug 1 are provided with mounting platforms 11, and the side of the mounting platform 11 is embedded with a sealing gasket 2; the sealing gasket 2 is embedded in the limiting groove 111 of the mounting platform 11 through the embedded part 21 thereon, and the cooperation between the limiting groove 111 and the embedded part 21 makes the connection between the sealing gasket 2 and the mounting platform 11 more stable, avoiding the misalignment between the sealing gasket 2 and the mounting platform 11 during the installation of the plug 1 on the valve; the top of the mounting platform 11 is fixedly connected with an adjusting part 12, which can be adjusted An adjustment slot 121 is provided through the side of the component 12; a positioning assembly 3 is connected to the adjustment slot 121; the positioning assembly 3 includes a positioning column 31 that passes through the adjustment slot 121, a baffle 32 is fixedly connected to the positioning column 31, and a nut 34 is connected to the positioning column 31; support assemblies 4 are provided at both ends of the positioning column 31; the support assembly 4 consists of a vertical plate 41, a socket 42 and an arc seat 43, one end of the positioning column 31 is inserted into the socket 42, and is supported on the outer surface of the valve by the arc seat 43, further ensuring the installation accuracy and stability of the plug 1.

[0037] See Figure 2 The number of mounting platforms 11 is set to be multiple, and the multiple mounting platforms 11 have different sizes and are coaxially arranged; this design allows the selection of appropriate mounting platforms 11 according to the sizes and requirements of different valves, thereby improving the versatility and applicability of the flange valve blind plug.

[0038] See Figure 2-3 A limiting groove 111 is provided on the side of the mounting platform 11, and an embedded part 21 that is compatible with the limiting groove 111 is fixedly connected to the side of the sealing gasket 2; this embedded design not only enhances the connection strength between the sealing gasket 2 and the mounting platform 11, but also ensures the accurate positioning of the sealing gasket 2 during installation and use, thereby effectively avoiding the risk of sealing failure.

[0039] See Figure 2 A positioning ring 112 is fixedly connected to the side of the mounting platform 11; the positioning ring 112 is inserted into the inner ring of the valve, ensuring the stable positioning of the regulating member 12, preventing the blocking piece 1 from shifting during the installation process, and improving the installation accuracy and sealing effect.

[0040] See Figure 2 and Figure 4 One side of the baffle 32 is fixedly connected to the limit block 321, and the limit block 321 is embedded in the adjustment groove 121; this design ensures the stable positioning of the positioning column 31 in the adjustment groove 121, thereby further ensuring the stability and reliability of the positioning assembly 3; a thread 33 is provided on the outer side of the positioning column 31, and the nut 34 is tightened by the thread 33, which can fix the adjusting member 12 between the baffle 32 and the nut 34, providing reliable fixation and support.

[0041] See Figure 5 The support assembly 4 includes a vertical plate 41, and a socket 42 is fixedly connected to one side of the top of the vertical plate 41, and one end of the positioning column 31 is inserted into the socket 42; the socket 42 provides additional support and stability for the positioning column 31, ensuring the reliability of the adjustment assembly during use.

[0042] See Figure 5 The bottom end of the vertical plate 41 is fixedly connected to an arc-shaped seat 43; the arc-shaped seat 43 is supported on the outer surface of the valve, and provides a stable supporting force through its arc-shaped structure, preventing the plug 1 from shifting in position during the valve closing process, thereby further improving the installation accuracy and sealing effect of the plug 1.

[0043] The working principle of this utility model is:

[0044] When in use, first install the sealing gasket 2 on the mounting platform 11. When installing the sealing gasket 2, the insert 21 should be embedded in the limiting groove 111. The cooperation between the limiting groove 111 and the insert 21 can make the connection between the sealing gasket 2 and the mounting platform 11 more stable, avoiding misalignment between the sealing gasket 2 and the mounting platform 11 during the process of installing the plug 1 on the valve.

[0045] After the sealing gasket 2 is installed, hold the adjusting member 12 by hand and insert it into the valve to be closed, and insert the positioning ring 112 into the inner ring of the valve. Then adjust the position of the positioning assembly 3. When adjusting the positioning assembly 3, the arc seat 43 should be supported on the outer surface of the valve. Then tighten the nut 34. As the nut 34 is tightened, the adjusting member 12 can be fixed between the baffle 32 and the nut 34.

[0046] In this way, during the process of closing the valve, with the cooperation of the positioning assembly 3 and the supporting assembly 4, the position of the plugging piece 1 can be prevented from being offset, thereby improving the accuracy of the installation of the plugging piece 1.

[0047] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A blind plug for a flange valve, comprising a plug (1), characterized in that: The plugging piece (1) is installed on the valve, and mounting platforms (11) are provided on both sides of the plugging piece (1), and sealing gaskets (2) are embedded on the sides of the mounting platforms (11); An adjusting member (12) is fixedly connected to the top of the mounting platform (11), and an adjusting slot (121) is formed through the side of the adjusting member (12); The adjustment groove (121) is connected to a positioning assembly (3); The positioning assembly (3) comprises a positioning column (31) penetrating the adjustment slot (121), a blocking piece (32) is fixedly connected to the positioning column (31), and a nut (34) is connected to the positioning column (31); Support components (4) are provided at both ends of the positioning column (31).

2. The flange valve blind plug according to claim 1, characterized in that: The number of the mounting platforms (11) is set to be multiple, and the multiple mounting platforms (11) have different sizes and are coaxially arranged.

3. The flange valve blind plug according to claim 2, characterized in that: A limiting groove (111) is provided on the side of the mounting platform (11), and an insert (21) adapted to the limiting groove (111) is fixedly connected to the side of the sealing gasket (2).

4. The flange valve blind plug according to claim 3, characterized in that: A positioning ring (112) is fixedly connected to the side of the mounting platform (11).

5. The flange valve blind plug according to claim 1, characterized in that: One side of the blocking piece (32) is fixedly connected to a limiting block (321), and the limiting block (321) is embedded in the adjustment groove (121); The outer side of the positioning column (31) is provided with a thread (33).

6. The flange valve blind plug according to claim 1, characterized in that: The support assembly (4) comprises a vertical plate (41), a top side of the vertical plate (41) is fixedly connected to a socket (42), and one end of the positioning column (31) is inserted into the socket (42).

7. The flange valve blind plug according to claim 6, characterized in that: The bottom end of the vertical plate (41) is fixedly connected to an arc-shaped seat (43).

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