A multifunctional blind plate convenient to mount and dismount

Abstract

This utility model belongs to the technical field of pipeline gas equipment and relates to a multi-functional blind flange that is easy to install and disassemble. It includes a blind flange body, with a pressure injection pipe fixed to the top outer side of the body. The end of the pressure injection pipe away from the blind flange body has an internal thread, and a plug is connected to the internal thread. When pressure needs to be applied to the pipeline, simply rotate the plug at the top of the pressure injection pipe to remove it from the pipe, install a pressure gauge, and then inject pressure into the gas pipeline until it reaches the specified pressure holding value. After the pressure holding is successful, remove the pressure gauge and restore the plug to its original position. The design allows workers to install and remove the pressure gauge simply by removing the plug without disassembling the entire blind flange, simplifying the operation process and making gas delivery more convenient. It avoids maintenance personnel entering residential homes to apply pressure, improving work efficiency and preventing unnecessary risks to users, thus further enhancing user safety.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline gas equipment and relates to a multifunctional blind flange that is easy to install and disassemble. Background Technology

[0002] A blind flange is a flange without a central hole. Its main function is to seal the pipe opening and achieve complete separation of the production medium. The sealing surface comes in various forms, including flat, raised, and recessed surfaces. The materials used in its construction include carbon steel, stainless steel, and alloy steel. The choice of materials depends on the working environment of the blind flange.

[0003] When using the above technology, the following technical problems were found in the existing technology: gas blind flanges, as a type of flange cover, are used to seal the pipe opening. However, most of the existing gas blind flanges are single circular plate designs. When a gas outage occurs suddenly in a residential unit, maintenance personnel need to enter the resident's home to re-pressurize, which increases the safety risks to users. Utility Model Content

[0004] The technical problem to be solved by this utility model is that gas blind flanges, as a type of flange cover, are used to seal pipe openings. However, most existing gas blind flanges are designed as a single round plate. When a gas outage occurs suddenly in a residential unit, maintenance personnel need to enter the resident's home to re-pressurize, which increases the safety risks to users.

[0005] This utility model describes a multifunctional blind flange that is easy to install and disassemble. It includes a blind flange body, with a pressure injection tube fixedly connected to the top outer side of the body. The end of the pressure injection tube away from the blind flange body has an internal thread, and a plug is connected to the internal thread. Multiple sets of bolts are installed inside the blind flange body, and a gas pipeline body is connected to the outside of each bolt. The gas pipeline body is connected to the blind flange body via bolts. Multiple sets of disassembly and assembly components are installed on the outside of the blind flange body. Each disassembly and assembly internally connects the gas pipeline body and the blind flange body. Protective components are provided outside the bolts, and a toggle component is provided inside each disassembly and assembly component.

[0006] The assembly / disassembly assembly includes a clamping plate housing, which is installed on the outside of the blind plate body. An installation groove is formed inside the clamping plate housing. A spring limiting block is slidably connected to the top of the inner side of the installation groove. A spring rod is installed at the bottom of the inner side of the installation groove. A pressing block is slidably connected to the bottom of the inner side of the installation groove. A spring rack is fixed to one end of the pressing block. One side of the spring rack is connected to the clamping plate housing. A locking block is installed at the telescopic end of the spring rod. The locking block is slidably connected inside the installation groove. A limiting rod is fixed to the other side of the locking block near the spring rod. A toggle assembly is provided at the bottom of the limiting rod.

[0007] The protective assembly includes a first protective shell located outside the bolt. Multiple sets of pressure rods are installed inside the first protective shell. A rubber pad is fixed to the telescopic end of the pressure rod. A friction groove is formed on one side of the rubber pad. A second protective shell is installed on the other end of the bolt.

[0008] The actuating assembly includes a threaded rod located at the bottom of the limiting rod. The threaded rod and the limiting rod are rotatably connected. A handle is fixed to the end of the threaded rod away from the limiting rod. The threaded rod is threadedly connected inside the housing of the clamping plate.

[0009] A magnetic strip is fixed to the outer side of the gas pipeline body near the bolt, and a magnetic groove is opened on the inner side of the second protective shell near the magnetic strip.

[0010] A sealing gasket is installed on the side of the gas pipeline body closest to the blind flange body.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: When it is necessary to pressurize the pipeline, simply rotate the plug at the top of the injection pipe to remove it from the injection pipe, install the pressure gauge, and then inject pressure into the gas pipeline to reach the specified pressure holding value. After the pressure holding is qualified, remove the pressure gauge and restore the plug to its original state. The design allows workers to install and remove the pressure gauge by simply removing the plug without disassembling the entire blind flange, simplifying the operation process and making it more convenient when supplying gas. It avoids maintenance personnel entering residential homes to apply pressure, improves work efficiency, and avoids unnecessary risks to users by entering their homes, further improving user safety.

[0012] By using plugs to install and remove the pressure gauge, the operation process is simplified, making gas delivery more convenient. This avoids maintenance personnel entering residential homes to set up pressure, reduces unnecessary risks to users during home visits, and further improves user safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main structure of the blind plate of this utility model.

[0015] Figure 2 This is a schematic diagram of the injection tube of this utility model.

[0016] Figure 3 This is a schematic diagram of the clamping plate shell of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the magnetic strip of this utility model.

[0018] Figure 5 yes Figure 2 Enlarged view of point A.

[0019] In the diagram: 1. Gas pipeline body, 11. Blind flange body, 12. Pressure injection pipe, 13. Internal thread, 14. Plug, 15. Bolt, 2. Clamping plate shell, 21. Mounting groove, 22. Spring limit block, 23. Spring rod, 24. Extrusion block, 25. Spring rack, 26. Limiting rod, 27. Locking block, 3. First protective shell, 31. Pressure rod, 32. Rubber pad, 33. Friction groove, 34. Second protective shell, 4. Threaded rod, 41. Turn handle, 5. Magnetic strip, 51. Magnetic groove, 6. Sealing gasket. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Example 1: As Figure 1 - Figure 5As shown, a multifunctional blind flange that is easy to install and disassemble includes a blind flange body 11. A pressure injection tube 12 is fixedly connected to the top of the outer side of the blind flange body 11. The end of the pressure injection tube 12 away from the blind flange body 11 has an internal thread 13. A plug 14 is connected to the internal thread of the internal thread 13. Multiple sets of bolts 15 are installed on the inner side of the blind flange body 11. A gas pipeline body 1 is connected to the outer side of the bolts 15. The gas pipeline body 1 is connected to the blind flange body 11 through the bolts 15. Multiple sets of disassembly and assembly components are installed on the outer side of the blind flange body 11. The disassembly and assembly components are internally connected to the gas pipeline body 1 and the blind flange body 11. A protective component is provided on the outer side of the bolts 15 to protect the bolts 15 from direct long-term exposure to the external environment, reduce the high temperature, high pressure and corrosion of the bolts 15, and improve the tightness and safety of the bolt connection. A toggle component is provided inside the disassembly and assembly components.

[0025] During operation, the blind flange body 11 is placed close to the gas pipeline body 1, and then the gas pipeline body 1 and the blind flange body 11 are connected using bolts 15. Then, the disassembly and assembly components and the toggle components are used to fix the blind flange body 11 and the gas pipeline body 1 again. When it is necessary to pressurize the pipeline, simply rotate the plug 14 at the top of the injection pipe 12 to remove it from the injection pipe 12, install the pressure gauge, and then inject pressure into the gas pipeline to reach the specified pressure holding value. After the pressure holding is qualified, remove the pressure gauge and restore the plug 14 to its original state. The design allows the staff to install and remove the pressure gauge by removing the plug 14 without disassembling the entire blind flange, simplifying the operation process and making it more convenient when supplying gas. It avoids maintenance personnel entering residential homes to apply pressure, improves work efficiency, and avoids unnecessary risks to users when entering homes, further improving user safety.

[0026] Example 2: Figure 1 - Figure 5As shown, the assembly includes a clamping plate housing 2, which is installed on the outside of the blind flange body 11. An installation groove 21 is provided inside the clamping plate housing 2. A spring limiting block 22 is slidably connected to the top of the inner side of the installation groove 21. A spring rod 23 is installed at the bottom of the inner side of the installation groove 21. A pressing block 24 is slidably connected to the bottom of the inner side of the installation groove 21. A spring rack 25 is fixedly connected to one end of the pressing block 24. One side of the spring rack 25 is connected to the clamping plate housing 2. A locking block 27 is installed at the telescopic end of the spring rod 23. The locking block 27 is slidably connected inside the installation groove 21. A limiting rod 26 is fixedly connected to the other side of the locking block 27 near the spring rod 23. A limiting rod 26 is provided at the bottom of the limiting rod 26. The actuating assembly and protective assembly include a first protective shell 3, which is located outside the bolt 15. Multiple pressure rods 31 are installed inside the first protective shell 3. A rubber pad 32 is fixedly connected to the telescopic end of the pressure rod 31. A friction groove 33 is opened on one side of the rubber pad 32. The use of the friction groove 33 increases the friction between the rubber pad 32 and the bolt 15. A second protective shell 34 is installed on the other end of the bolt 15. The actuating assembly includes a threaded rod 4, which is located at the bottom of the limiting rod 26. The threaded rod 4 and the limiting rod 26 are rotatably connected. A handle 41 is fixedly connected to the end of the threaded rod 4 away from the limiting rod 26. The threaded rod 4 is threadedly connected inside the clamping plate outer shell 2.

[0027] In the initial working state, the locking block 27 is located at the bottom of the mounting groove 21 and does not limit the sliding of the spring limiting block 22. At the same time, the pressing block 24 and the spring rack 25 protrude from the outside of the clamping plate shell 2. The spring rack 25 limits the limiting rod 26 at the bottom, and the spring rod 23 is in a compressed state. When the blind flange body 11 is brought close to the gas pipeline body 1, the spring limiting block 22 is first compressed and retracts into the mounting groove 21. When the gas pipeline body 1 is brought close to the pressing block 24, it also presses the pressing block 24 into the mounting groove 21. At the same time, the spring rack 25 begins to move towards one side of the mounting groove 21, canceling the limitation on the limiting rod 26. At this time, the spring limiting block 22 is still compressed by the top of the blind flange body 11, so the locking block 27 remains stationary. When the gas pipeline body 1 is completely pressed against the blind flange body... At 11 o'clock, the spring limit block 22 will pop out, and at the same time the spring rod 23 will start to rebound. The locking block 27 will limit the spring limit block 22, fixing the blind plate body 11 to one end of the gas pipeline body 1. When disassembly is required, rotate the handle 41 to make the handle 41 rotate inside the mounting groove 21, pull the locking block 27 and move it downward. When the locking block 27 is completely disengaged from the spring limit block 22, press the spring limit block 22 again to separate the gas pipeline body 1 from the blind plate body 11. At the same time, install the second protective shell 34 on one end of the bolt 15 and install the first protective shell 3 on one end of the connecting nut of the bolt 15. Then press, the pressure rod 31 inside the first protective shell 3 will squeeze the bolt 15 with the rubber pad 32, making the connection between the first protective shell 3 and the bolt 15 more stable.

[0028] Example 3: As Figure 1 - Figure 2 , Figure 4 As shown, a magnetic strip 5 is fixed to the outer side of the gas pipeline body 1 near the bolt 15, and a magnetic groove 51 is opened on the inner side of the second protective shell 34 near the magnetic strip 5. A sealing gasket 6 is installed on the side of the gas pipeline body 1 near the blind plate body 11.

[0029] During operation, when the second protective shell 34 is installed on one end of the bolt 15, the magnetic groove 51 inside the second protective shell 34 will approach the magnetic strip 5, and the two will attract each other, making the connection between the second protective shell 34 and the bolt 15 more secure. When the gas pipeline body 1 is connected to the blind plate body 11, the sealing gasket 6 is located between the two. The sealing gasket 6 is deformed under pressure, filling the gap between the gas pipeline body 1 and the blind plate body 11, further enhancing the sealing performance of the device.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional blind flange that is easy to install and disassemble, characterized in that: The device includes a blind flange body (11), a pressure injection tube (12) is fixedly connected to the top of the outer side of the blind flange body (11), the pressure injection tube (12) has an internal thread (13) at the end away from the blind flange body (11), a plug (14) is connected to the internal thread (13), multiple sets of bolts (15) are installed on the inner side of the blind flange body (11), a gas pipeline body (1) is connected to the outer side of the bolts (15), the gas pipeline body (1) is connected to the blind flange body (11) by the bolts (15), multiple sets of disassembly and assembly components are installed on the outer side of the blind flange body (11), the gas pipeline body (1) and the blind flange body (11) are connected inside the disassembly and assembly components, a protective component is provided on the outer side of the bolts (15), and a toggle component is provided inside the disassembly and assembly components.

2. The multifunctional blind flange that is easy to install and disassemble according to claim 1, characterized in that: The assembly and disassembly assembly includes a clamping plate housing (2), which is installed on the outside of the blind plate body (11). The clamping plate housing (2) has an installation groove (21) inside. A spring limiting block (22) is slidably connected to the top of the inner side of the installation groove (21). A spring rod (23) is installed at the bottom of the inner side of the installation groove (21). A pressing block (24) is slidably connected to the bottom of the inner side of the installation groove (21). A spring rack (25) is fixed to one end of the pressing block (24). One side of the spring rack (25) is connected to the clamping plate housing (2). A locking block (27) is installed at the telescopic end of the spring rod (23). The locking block (27) is slidably connected inside the installation groove (21). A limiting rod (26) is fixed to the other side of the locking block (27) near the spring rod (23). A toggle assembly is provided at the bottom of the limiting rod (26).

3. The multifunctional blind flange that is easy to install and disassemble according to claim 1, characterized in that: The protective assembly includes a first protective shell (3), which is located outside the bolt (15). Multiple sets of pressure rods (31) are installed inside the first protective shell (3). A rubber pad (32) is fixed to the telescopic end of the pressure rod (31). A friction groove (33) is provided on one side of the rubber pad (32). A second protective shell (34) is installed on the other end of the bolt (15).

4. A multifunctional blind flange that is easy to install and disassemble according to claim 2, characterized in that: The actuating assembly includes a threaded rod (4), which is located at the bottom of the limiting rod (26). The threaded rod (4) is rotatably connected to the limiting rod (26). A throttle (41) is fixedly connected to one end of the threaded rod (4) away from the limiting rod (26). The threaded rod (4) is threadedly connected inside the clamping plate housing (2).

5. A multifunctional blind flange that is easy to install and disassemble according to claim 3, characterized in that: A magnetic strip (5) is fixed to the outside of the gas pipeline body (1) near the bolt (15), and a magnetic groove (51) is opened on the inside of the second protective shell (34) near the magnetic strip (5).

6. A multifunctional blind flange that is easy to install and disassemble according to claim 1, characterized in that: A sealing gasket (6) is installed on the side of the gas pipeline body (1) near the blind plate body (11).

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