A shut-off device and a maintenance-friendly indoor gas riser using the same

Abstract

The application discloses a sealing device and an indoor gas vertical pipe convenient to maintain using the same. The sealing device comprises a sealing assembly and an adjusting assembly. The indoor gas vertical pipe comprises a first pipe, a second pipe, a connecting assembly, a hose and a support. The first pipe comprises a pipe A and a pipe B. Two second pipes and the sealing device are provided, which are a first sealing device and a second sealing device. The adjusting assembly of the first sealing device is fixed on the inner wall of the pipe A. The sealing assembly of the first sealing device is fixed on the inner wall of the second pipe connected with the pipe A. The adjusting assembly of the second sealing device is fixed on the inner wall of the pipe B. The sealing assembly of the second sealing device is fixed on the inner wall of the second pipe connected with the pipe B. One end of the pipe A is detachably connected with one second pipe. One end of the pipe B is detachably connected with the other second pipe. The two ends of the hose are detachably connected with the other ends of the pipe A and the pipe B respectively. The connecting assembly is sleeved on the hose.

Description

Technical Field

[0001] This invention belongs to the field of gas risers, and specifically relates to a sealing device and an easy-to-maintain indoor gas riser using the same. Background Technology

[0002] An indoor gas riser is a specialized pipeline for transporting natural gas, primarily used to supply gas to various gas appliances such as water heaters and gas stoves. It typically uses metal gas pipes. Currently, indoor gas risers handle gas supply to both upstairs and downstairs residents. Most indoor gas risers are single metal pipes with branches supplying gas to individual users. When an indoor gas riser leaks or needs replacement, the section of pipe must be cut. During this process, workers use welding or threading to secure the replacement pipe. This is a labor-intensive operation with inherent risks. Replacement not only requires shutting off gas to the entire building but also releases a significant amount of natural gas, wasting resources. There is also a risk of leaks due to inadequate sealing, threatening the safety of workers and residents.

[0003] In addition, after replacement, the new pipe will contain a mixture of air and gas, which may cause the gas to explode. Replacing the indoor gas riser is risky and difficult to operate. Summary of the Invention

[0004] To address the technical problems existing in the prior art, the present invention provides a sealing device and an easy-to-maintain indoor gas riser using the same.

[0005] In a first aspect, the present invention provides a sealing device, comprising a sealing assembly and an adjusting assembly. The sealing assembly includes a partition, a limiting rod, a sealing device, a turntable, a connecting rod, a first prism, and a second prism. The partition is circular and arranged horizontally, and has a plurality of through holes evenly arranged along its circumference. Multiple sealing devices, limiting rods, and connecting rods are provided, with each through hole, limiting rod, sealing device, and connecting rod corresponding to the other. The turntable is coaxially mounted on the partition, and the turntable and partition are rotatably connected. The upper end of the sealing device is slidably connected to the limiting rod, and the lower end of the sealing device abuts against the partition. The limiting rod is arranged radially along the turntable, and is parallel to the partition. Both ends of the connecting rod are rotatably connected to the turntable and the sealing device, respectively. The top of the first prism passes through the partition and is coaxially fixed to the bottom of the turntable, and the second prism is coaxially fixed to the bottom of the first prism. The adjusting assembly includes a first sleeve, a transmission rod, a knob, a first bevel gear, a second bevel gear, a third bevel gear, a fixing frame, a connecting sleeve, a second sleeve, a third prism, and a sleeve rod. The first sleeve is arranged vertically and coaxial with the second prism. The second prism is connected to the first sleeve groove. The second bevel gear is fixedly disposed at the bottom of the first sleeve. The transmission rod is arranged horizontally. The knob is disposed at one end of the transmission rod. The third bevel gear is disposed at the other end of the transmission rod. The second bevel gear and the third bevel gear mesh with each other. The first bevel gear is disposed at one end of the third prism. The third prism is slidably disposed horizontally in the connecting sleeve. The connecting sleeve is fixedly disposed in the... At the bottom of the fixed frame, the first bevel gear and the second bevel gear mesh with each other. The second sleeve is fixedly mounted on the fixed frame. One end of the sleeve rod is fixedly connected to the first bevel gear. The second sleeve includes a sleeve body, which is horizontally arranged and coaxially arranged with the sleeve rod. The two ends of the sleeve body are sealed with a first end cap and a second end cap. The first end cap is arranged close to the first bevel gear. The other end of the sleeve rod slides through the first end cap and is inserted into the sleeve body. A piston is slidably sealed inside the sleeve body. The piston is fixedly connected to the other end of the sleeve rod. A spring is connected between the piston and the second end cap. The second end cap has a round hole.

[0006] The present invention discloses a sealing device, wherein the sealing device includes a connecting block and a sealing seat, the sealing seat is disc-shaped, the axis of the sealing seat is arranged vertically, the connecting block is fixedly disposed on the upper disc surface of the sealing seat, the connecting block and the limiting rod are slidably connected, and the lower disc surface of the sealing seat abuts against the partition plate.

[0007] The present invention provides a sealing device, wherein the diameter of the sealing seat is larger than the diameter of the through hole.

[0008] On the other hand, the present invention provides an indoor gas riser using a sealing device, comprising a first pipe, a second pipe, a connecting assembly, a hose, and a bracket. The first pipe includes pipe A and pipe B. Two versions of the second pipe, sealing device, and bracket are provided. The two sealing devices are a first sealing device and a second sealing device, respectively. One end of pipe A is detachably connected to one of the second pipes, and one end of pipe B is detachably connected to the other of the second pipe. Both ends of the hose are detachably connected to the other ends of pipe A and pipe B, respectively. The connecting assembly is sleeved on the hose. The adjusting assembly of the first sealing device is fixed to the inner wall of pipe A via a bracket. The sealing assembly of the first sealing device is fixed to the inner wall of the second pipe connected to pipe A. The adjusting assembly of the second sealing device is fixed to the inner wall of pipe B via another bracket, and the sealing assembly of the second sealing device is fixed to the inner wall of the second pipe connected to pipe B.

[0009] The present invention provides a sealing device, wherein the limiting rods in the first sealing device and the second sealing device are respectively fixed on the inner walls of two second pipes.

[0010] This invention discloses an indoor gas riser using a sealing device, wherein the adjusting components of the first sealing device and the second sealing device are respectively fixedly mounted on the inner walls of pipe A and pipe B via brackets. The brackets are cross-shaped brackets, with one bracket having four ends fixed to the inner wall of pipe A and the other bracket having four ends fixed to the inner wall of pipe B. Both brackets are arranged horizontally, and the first sleeves of the two adjusting components are respectively rotatably inserted vertically into the center of the two brackets.

[0011] This invention discloses an indoor gas riser using a sealing device, wherein pipe A is provided with a valve, a user pipe, a first flange and a knob hole, pipe B is provided with a knob hole and a first flange, and the second pipe is provided with a second flange. The first flange of pipe A and the second flange of a second pipe are bolted together, and the first flange of pipe B and the second flange of another second pipe are bolted together. The transmission rod of the first sealing device passes through the knob hole on pipe A, and the transmission rod of the second sealing device passes through the knob hole on pipe B.

[0012] This invention discloses an indoor gas riser using a sealing device, wherein both pipe A and pipe B are provided with a third flange, and the flexible hose is provided with a fourth flange and a gas passage. There are two fourth flanges. The connecting assembly includes a fifth flange, a fixing rod, and a protective plate. There are multiple fixing rods, multiple protective plates, and two fifth flanges. The protective plate is snapped between the two fifth flanges via the fixing rod. One end of the fixing rod passes through one of the fifth flanges, the fourth flange, and the third flange of pipe A and is bolted to it. The other end of the fixing rod passes through another fifth flange, the fourth flange, and the third flange of pipe B and is bolted to it, thereby connecting pipe A, pipe B, the connecting assembly, and the flexible hose.

[0013] The present invention discloses an indoor gas riser using a sealing device, wherein the fixing bracket of the first sealing device is fixedly installed on the inner wall of the pipe A, and the fixing bracket of the second sealing device is fixedly installed on the inner wall of the pipe B.

[0014] The sealing device and the easy-to-maintain indoor gas riser using the present invention have at least the following beneficial effects: The present invention seals two second pipes through a sealing component, enabling the disassembly and assembly of two first pipes located indoors while preventing gas leakage, facilitating the replacement of the first pipes. When replacing the first pipe, only a vacuum treatment of the pipe at that location is required, and the second pipe can be sealed by adjusting the component, simplifying the pipe disassembly process. At the same time, since a vacuum must be drawn before the second pipe can be sealed or opened by turning the knob when replacing the first pipe, user operation errors that could lead to the second pipe being sealed and the gas supply failing to function properly are avoided during normal use.

[0015] Moreover, in this invention, the two sections of the first pipe are connected by a hose and a connecting assembly. The hose is supported by the connecting assembly. When replacing the first pipe, by disassembling the flange and fixing rod on the connecting assembly, the hose can be bent so that the two sections of the first pipe can be brought closer together under the action of the hose. During the process of the two sections of the first pipe approaching each other, the first sleeve gradually detaches from the second prism. When the second prism completely slides out of the first sleeve, the two first pipes and the hose can be removed, realizing quick disassembly and assembly between the first pipe and the second pipe. Attached image description:

[0016] Figure 1 This is a three-dimensional structural diagram of the sealing device of the present invention installed on a gas riser;

[0017] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 3 This is a front view of the sealing device of the present invention installed on a gas riser;

[0019] Figure 4 This is a three-dimensional structural diagram of the regulating component of the present invention installed on the gas riser;

[0020] Figure 5 This is a three-dimensional structural diagram of the second sleeve in this invention;

[0021] Figure 6 A three-dimensional structural diagram of the gas riser equipped with connecting components in this invention;

[0022] Figure 7 This is a three-dimensional structural diagram of the gas riser disconnection assembly in this invention;

[0023] Figure 8 This is a three-dimensional structural diagram of the hose in this invention.

[0024] Figure label:

[0025] 01-Sealing assembly; 11-Baffle; 111-Through hole; 12-Limiting rod; 13-Sealing device; 131-Connecting block; 132-Sealing seat; 14-Turntable; 15-Connecting rod; 16-First prism; 17-Second prism; 02-Adjusting assembly; 21-Bracket; 22-First sleeve; 23-Transmission rod; 24-Knob; 25-First bevel gear; 26-Second bevel gear; 27-Third bevel gear; 28-Fixing bracket; 29-Connecting sleeve; 30-Third prism; 31-Second sleeve; 311-Piston ; 312-Spring; 313-Round hole; 314-Sleeve body; 315-First end cap; 316-Second end cap; 32-Sleeve rod; 04-First pipe; 41-Pipe A; 411-Valve; 412-User pipe; 413-Knob hole; 414-First flange; 415-Third flange; 42-Pipe B; 05-Second pipe; 51-Second flange; 06-Connecting assembly; 61-Fifth flange; 62-Fixing rod; 63-Protective plate; 07-Hose; 71-Fourth flange; 72-Gas passage. Detailed Implementation

[0026] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0027] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply that the meaning of "multiple devices or elements" is two or more.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention discloses a sealing device, including a sealing assembly 01 and an adjusting assembly 02. The sealing assembly 01 includes a partition 11, a limiting rod 12, a sealing device 13, a turntable 14, a connecting rod 15, a first prism 16, and a second prism 17. The partition 11 is arranged horizontally and has a through hole 111. The turntable 14 is rotatably mounted on the top of the partition 11. The sealing device 13 and the limiting rod 12 are both located above the partition 11. The sealing device 13 abuts against the partition 11 and is slidably connected to the limiting rod 12. The two ends of the connecting rod 15 are rotatably connected to the turntable 14 and the sealing assembly 01, respectively. The through hole 111, the limiting rod 12, the sealing device 13, and the connecting rod 15 correspond one-to-one. The top of the first prism 16 passes through the partition 11 and is fixed to the bottom of the turntable 14. The second prism 17 is fixed to the bottom of the first prism 16.

[0029] In the sealing assembly 01, multiple through holes 111, limiting rods 12, sealing devices 13, and connecting rods 15 are provided. The partition plate 11 is a circular plate, and the multiple through holes 111 are evenly arranged along the center of the partition plate 11. The turntable 14 is coaxially mounted on the partition plate 11, and the through holes 111 are located on the partition plate 11 on the outer periphery of the turntable 14. The top of the first prism 16 passes through the partition plate 11 and is coaxially fixed to the bottom of the turntable 14. The partition plate 11 is fixed, and the turntable 14 and the first prism 16 rotate coaxially. The number of sealing devices 13, limiting rods 12, and connecting rods 15 is the same as that of the through holes 111. The multiple sealing devices 13, limiting rods 12, and connecting rods 15 are evenly arranged along the circumference of the turntable 14, and the through holes 111 correspond one-to-one with the sealing devices 13, limiting rods 12, and connecting rods 15. The sealing device 13 is located between the turntable 14 and the through holes 111, and the limiting rod 12 is arranged radially along the turntable 14. The limiting rod 12 is parallel to the partition 11, that is, the limiting rod 12 is also arranged in the horizontal direction.

[0030] The sealing device 13 includes a connecting block 131 and a sealing seat 132. The connecting block 131 is fixedly mounted on the sealing seat 132. The connecting block 131 and the limiting rod 12 are slidably connected, that is, the connecting block 131 is slidably sleeved on the limiting rod 12. The limiting rod 12 has a protrusion near the end of the turntable 14 to limit the sealing device 13 and prevent the sealing device 13 from slipping off the limiting rod 12. The sealing seat 132 abuts against the partition plate 11. The sealing seat 132 is disc-shaped, and the axis of the sealing seat 132 is arranged vertically. The lower surface of the sealing seat 132 abuts against the partition plate 11, and the connecting block 131 is fixedly mounted on the upper surface. The diameter of the sealing seat 132 is larger than the diameter of the through hole 111, ensuring that the sealing seat 132 completely covers the through hole 111. The partition 11 is coated with lubricating oil to ensure that the sealing seat 132 can slide flexibly on the turntable 14, while also ensuring its sealing performance. To ensure the sealing performance of the sealing seat 132 and the through hole 111, a gasket can be set on the sealing seat 132.

[0031] One end of the connecting rod 15 is rotatably connected to the turntable 14, which can be a universal joint or other connection method that can achieve the same effect. Similarly, the other end of the connecting rod 15 is rotatably connected to the sealing seat 132. Figure 1 , 2As shown, when the turntable 14 rotates clockwise relative to the partition 11, the turntable 14 pushes the sealing seat 132 to slide on the partition 11 away from the turntable 14 via the connecting rod 15, that is, the sealing seat 132 slides closer to the through hole 111. At this time, the connecting block 131 slides along the limiting rod 12 away from the turntable 14 until the sealing seat 132 slides to the through hole 111, sealing the through hole 111. Conversely, when the turntable 14 rotates counterclockwise relative to the partition 11, the turntable 14 pulls the sealing seat 132 to slide closer to the turntable 14 via the connecting rod 15, that is, the sealing seat 132 slides away from the through hole 111. At this time, the connecting block 131 slides along the limiting rod 12 closer to the turntable 14 until the sealing seat 132 leaves the through hole 111, and the through hole 111 reopens. Therefore, it can be seen that during the use of the sealing device, the partition 11 and the limiting rod 12 need to be fixed.

[0032] A second prism 17 is coaxially arranged at the bottom of the first prism 16, meaning that both the first prism 16 and the second prism 17 are arranged vertically. The second prism 17 is connected to the adjustment assembly 02. The adjustment assembly can drive the turntable 14 to rotate through the second prism 17 and the first prism 16 to achieve the sealing and opening of the through hole 111.

[0033] like Figure 3 , Figure 4 and Figure 5 As shown, the adjusting assembly 02 includes a first sleeve 22, a transmission rod 23, a knob 24, a first bevel gear 25, a second bevel gear 26, a third bevel gear 27, a fixing frame 28, a connecting sleeve 29, a second sleeve 31, a third prism 30, and a sleeve rod 32. The first sleeve 22 is arranged vertically and coaxial with the second prism 17. The second prism 17 and the top groove of the first sleeve 22 are connected. The second bevel gear 26 is fixedly disposed at the bottom of the first sleeve 22. The transmission rod 23 is arranged horizontally. The knob 24 is disposed at one end of the transmission rod 23, and the third bevel gear 27 is disposed at the other end of the transmission rod 23. The second bevel gear 26 and the third bevel gear 27 mesh with each other. The first bevel gear 25 is disposed at one end of the third prism 30, the third prism 30 is slidably disposed in the connecting sleeve 29 in the horizontal direction, the connecting sleeve 29 is fixedly disposed at the bottom of the fixing frame 28, the first bevel gear 25 and the second bevel gear 26 mesh with each other (the axis of the first bevel gear 25 is arranged in the horizontal direction, and the axis of the second bevel gear 26 is arranged in the vertical direction), the second sleeve 31 is fixedly disposed on the fixing frame 28, one end of the sleeve rod 32 is fixedly connected to the first bevel gear 25, and the other end of the sleeve rod 32 is slidably and sealingly inserted into the second sleeve 31.

[0034] In the adjusting assembly 02, a polygonal groove is formed at the top of the first sleeve 22. The polygonal groove is adapted to the second prism 17, which is inserted into the polygonal groove to achieve a groove connection between the two, thereby realizing the transmission of rotational force between the sealing assembly 01 and the adjusting assembly 02. Figure 3 As shown, the second bevel gear 26 is fixed to the bottom of the first sleeve 22, the knob 24 is installed at the right end of the transmission rod 23, and the third bevel gear 27 is fixed at the left end of the transmission rod 23. The third bevel gear 27 and the second bevel gear 26 mesh with each other (the axis of the third bevel gear 27 is arranged in the horizontal direction). When the knob 24 is rotated, the transmission rod 23 drives the third bevel gear 27 to rotate synchronously, and then the third bevel gear 27 drives the second bevel gear 26 to rotate. The first sleeve 22 then rotates synchronously, and then drives the second prism 17 to rotate synchronously, so as to achieve the purpose of driving the sealing assembly 01 through the adjustment assembly 02.

[0035] like Figure 5 As shown, the second sleeve 31 includes a horizontally arranged sleeve body 314, which is coaxially arranged with the sleeve rod 32. The two ends of the sleeve body 314 are sealed with a first end cap 315 and a second end cap 316. The first end cap 315 is arranged close to the first bevel gear 25. The other end of the sleeve rod 32 slides through the first end cap 315 and is inserted into the sleeve body 314. A piston 311 is slidably sealed inside the sleeve body 314. The piston 311 is fixedly connected to the other end of the sleeve rod 32. A spring 312 is connected between the piston 311 and the second end cap 316. The second end cap 316 is provided with a round hole 313.

[0036] like Figure 3 As shown, the third prism 30 is slidably inserted into the connecting sleeve 29, which is horizontally fixed to the fixing frame 28. The first bevel gear 25 is fixed to the right end of the third prism 30, and the third prism 30 can slide horizontally on the connecting sleeve 29. The first bevel gear 25 and the second bevel gear 26 mesh with each other. Figure 3-5As shown, the right side of piston 311 is fixed to the left end of sleeve rod 32, the right end of sleeve rod 32 is fixed to the left side of first bevel gear 25, the left side of piston 311 is fixedly connected to the right end of spring 312, the left end of spring 312 is fixedly connected to second end cap 316, and a circular hole 313 is formed on the second end cap 316. The second sleeve 31 and sleeve rod 32 form the piston 311 structure. The circular hole 313 allows the air pressure on both sides of piston 311 in the cavity of the second sleeve 31 to generate a pressure difference. Through the pressure difference, piston 311 moves within the cavity of the second sleeve 31, that is, piston 311 moves to the left or right. When piston 311 moves to the left, it can compress spring 312, and when it moves to the right, it can stretch spring 312. When piston 311 moves to the right, sleeve rod 32, first bevel gear 25, and third prism 30 are pushed to the right by piston 311. At this time, third prism 30 slides horizontally to the right in connecting sleeve 29 until first bevel gear 25 meshes with second bevel gear 26, thus restricting second bevel gear 26. Conversely, when piston 311 moves to the left, sleeve rod 32, first bevel gear 25, and third prism 30 are pulled to the left by piston 311. At this time, third prism 30 slides horizontally to the left in connecting sleeve 29 until first bevel gear 25 separates from second bevel gear 26, thus releasing the restriction on second bevel gear 26. The specific driving method of the sealing device will be described in detail later.

[0037] like Figure 1 , Figure 6 and Figure 7 As shown, the present invention discloses an easy-to-maintain indoor gas riser using a sealing device, comprising a first pipe 04, a second pipe 05, a connecting assembly 06, and a hose 07. The first pipe 04 includes pipe A41 and pipe B42. Two second pipes 05 are provided; one end of pipe A41 is detachably connected to one second pipe 05, and one end of pipe B42 is detachably connected to the other second pipe 05. Both ends of the hose 07 are detachably connected to the other ends of pipe A41 and pipe B42, respectively. The connecting assembly 06 is sleeved on the hose 07. Pipe A41 is provided with a valve 411, a user pipe 412, a first flange 414, and a knob hole 413. Pipe B42 is provided with a knob hole 413 and a first flange 414. The second pipe 05 is provided with a second flange 51. The first flange 414 of pipe A41 and the second flange 51 of the second pipe 05 are bolted together, and the first flange 414 of pipe B42 and the second flange 51 of the other second pipe 05 are bolted together.

[0038] The gas riser is equipped with two sealing devices, namely a first sealing device and a second sealing device. The adjusting component 02 of the first sealing device is fixed to the inner wall of pipe A41 by a bracket 21. The sealing component 01 of the first sealing device is fixed to the inner wall of the second pipe 05 connected to pipe A41. The transmission rod 23 of the first sealing device passes through the knob hole 413 on pipe A41. The adjusting component 02 of the second sealing device is fixed to the inner wall of pipe B42 by another bracket 21. The sealing component 01 of the second sealing device is fixed to the inner wall of the second pipe 05 connected to pipe B42. The transmission rod 23 of the second sealing device passes through the knob hole 413 on pipe B42.

[0039] The first pipe 04 includes pipe A41 and pipe B42. Pipes A41 and B42, as well as hose 07 and connecting assembly 06, are all installed vertically indoors for easy replacement and maintenance. During the construction of the building, two second pipes 05 are respectively buried vertically in the building's base slab and ceiling. User pipe 412 passes through pipe A41 and is used to supply gas to the indoor unit. Valve 411 passes through pipe A41 and can also be installed on pipe B42 for releasing gas in the pipe and for vacuuming.

[0040] The sealing assemblies 01 of the first and second sealing devices are respectively fixed on the inner walls of the two second pipes 05. For each sealing assembly 01, the end of the limiting rod 12 away from the turntable 14 is fixed on the inner wall of the second pipe 05, and the outer periphery of the partition 11 is fixedly connected to the inner wall of the second pipe 05. Both the limiting rod 12 and the partition 11 are arranged in a horizontal direction. With this configuration, the second prism 17 in the sealing assembly 01 extends vertically into the first pipe 04 in the second pipe 05.

[0041] The adjusting components 02 of the first and second sealing devices are respectively fixed to the inner walls of pipes A41 and B42 via brackets 21. The brackets 21 are cross-shaped brackets, with one bracket 21 fixed at all four ends to the inner wall of pipe A41 and the other bracket 21 fixed at all four ends to the inner wall of pipe B42. Both brackets 21 are arranged horizontally. For each adjusting component 02, the first sleeve 22 is vertically rotatably inserted into the center of the bracket 21. The connection between the bracket 21 and the first sleeve 22 can be a ball joint or other connection method that produces the same effect. The bracket 21 firmly supports the first sleeve 22, ensuring that the first sleeve 22 and the second prism 17 in the sealing component 01 are on the same central axis. The second prism 17 is inserted into the groove of the first sleeve 22 for a tight fit. After the two sealing devices are installed, the two sections of the second pipe 05 are tightly connected to pipe A41 and pipe B42 respectively. Then, the first flange 414 on pipe A41 and pipe B42 are connected to the second flange 51 on the two sections of the second pipe 05 by bolts, thereby realizing the connection between the first pipe 04 and the second pipe 05 and the sealing of the connection to prevent gas leakage. To enhance the sealing, a gasket can also be inserted at the connection.

[0042] For each adjustment component 02, the fixing bracket 28 can be set at any position on the same horizontal plane of the inner wall of pipe A41 or pipe B42, so as to achieve the purpose of restricting or releasing the first bevel gear 25 on the second bevel gear 26.

[0043] like Figure 6 , Figure 7 and Figure 8 As shown, both pipes A41 and B42 are equipped with a third flange 415, and hose 07 is equipped with a fourth flange 71 and a gas passage 72. There are two fourth flanges 71. The connecting assembly 06 includes a fifth flange 61, a fixing rod 62, and a protective plate 63. There are multiple fixing rods 62 and multiple protective plates 63. There are two fifth flanges 61. The protective plate 63 is snapped between the two fifth flanges 61 by the fixing rod 62. One end of the fixing rod 62 passes through one fifth flange 61, the fourth flange 71, and the third flange 415 of pipe A41 and is bolted to it. The other end of the fixing rod 62 passes through another fifth flange 61, the fourth flange 71, and the third flange 415 of pipe B42 and is bolted to it, thus connecting pipe A41, pipe B42, connecting assembly 06, and hose 07.

[0044] The flexible hose 07 has four flanges 71 at both ends. These four flanges 71 connect to the three flanges 415 on pipes A41 and B42, respectively. The upper end of the fixing rod 62 passes through the fifth flange 61, the fourth flange 71 at the upper end of the flexible hose 07, and the third flange 415 on pipe A41, and is then tightened with bolts. The lower end of the fixing rod 62 passes through another fifth flange 61, the fourth flange 71 at the lower end of the flexible hose 07, and the third flange 415 on pipe B42, and is tightened with bolts, thus connecting pipes A41, B42, the connecting assembly 06, and the flexible hose 07. A protective plate 63 is sandwiched in the gap formed by the fixing rod 62 and the fifth flange 61, protecting the flexible hose 07 and enhancing the seal at the connection point. This ensures the connection between pipes A41, B42, and the flexible hose 07, allowing gas to enter the apartments above and below through the gas passage 72 of pipes A41, B42, and the flexible hose 07, and the two second pipes 05.

[0045] It should be noted that before use, the sealing device of the present invention maintains a certain air pressure in the cavity between the piston 311 of the second sleeve 31 and the first end cap 315. The value of the air pressure can be determined according to the actual situation, such as setting the air pressure to be equal to the gas pressure of the gas riser.

[0046] The first and second sealing devices are arranged in a mirror image above each other inside the gas riser, that is, the sealing component in the first sealing device is located above the regulating component, and the sealing component in the second sealing device is located below the regulating component.

[0047] When it is necessary to replace the first pipe 04 or hose 07, first close the main gas valve of the building, then open the valve 411 switch to connect valve 411 and the negative pressure device, open the negative pressure device switch, and extract the remaining gas in the pipeline through valve 411. After all the gas is extracted, the negative pressure device continues to work and lowers the gas pressure in the pipeline. When the gas pressure in the pipeline drops to a certain level, a pressure difference is formed in the second sleeve 31 cavity through the round hole 313, that is, the gas pressure in the right cavity of piston 311 is greater than the gas pressure in the left cavity. When the pressure difference on both sides of piston 311 reaches a certain level, close the negative pressure device. Under the action of the pressure difference, piston 311 moves horizontally to the left, thereby compressing spring 312, and at the same time driving sleeve rod 32 to move horizontally to the left, thereby driving the first bevel gear 25 to move horizontally to the left in sync. The third prism 30 slides horizontally to the left in the connecting sleeve 29. The first bevel gear 25 gradually moves away from the second bevel gear 26 until the two no longer mesh, that is, the restriction on the second bevel gear is released.

[0048] At this point, the operator only needs to rotate the knobs 24 on pipes A41 and B42. During the rotation of the knobs 24, the transmission rod 23 drives the third bevel gear 27 to rotate synchronously. The third bevel gear 27 drives the second bevel gear 26 to rotate, and then the first sleeve 22 rotates synchronously with the second bevel gear 26. The first sleeve 22 drives the second prism 17 and the first prism 16 to rotate synchronously through the polygonal groove. During the rotation of the first prism 16, the turntable 14 rotates synchronously. When the turntable 14 rotates, it pushes the connecting rod 15 to move. The connecting rod 15 pushes the sealing seat 132 to move. The connecting block 131 slides synchronously on the limiting rod 12 with the sealing seat 132 until the sealing seat 132 slides to the through hole 111 and completely covers the through hole 111. After the through hole 111 is sealed, both sections of the second pipe 05 are also sealed.

[0049] At this point, first disassemble the connection between the first flange 414 and the second flange 51 on pipe A41, then disassemble the connection between the fixing rod 62 and the third flange 415, the fourth flange 71 and the fifth flange 61. Since the hose 07 has a certain degree of flexibility and is not easily broken, pipe A41 and pipe B42 are brought closer together under the action of the hose 07. During the process of approaching, the first sleeve 22 in pipe A41 gradually separates from the second prism 17 in the upper second pipe 05. Then disassemble the connection between the first flange 414 and the second flange 51 on pipe B42. After the second prism 17 completely slides out of the first sleeve 22, remove pipe A41, pipe B42 and hose 07.

[0050] At this point, the new pipes A41 and B42, and hose 07 are fixed with flanges. If only pipe A41, pipe B42, or hose 07 needs to be replaced, the relevant connecting flanges can be removed for replacement. After replacement, the first pipe 04, hose 07, connecting assembly 06, and second pipe 05 are connected with bolts in sequence. Since there is air in the new pipe, in order to prevent deflagration, the gas in the pipe is extracted again through valve 411 to generate negative pressure. Similarly, due to the pressure difference, piston 311 drives the first bevel gear 25 away from the second bevel gear 26, closing the negative pressure device and valve 411. At this time, the knob 24 is rotated in the opposite direction, and the sealing assembly 01 is driven by the adjusting assembly 02, so that each sealing seat 132 slides away from the through hole 111 on the partition plate 11, restoring the gas supply of the building's gas pipeline.

[0051] When the gas supply is restored, the gas pressure in pipes A41 and B42 returns to normal from negative pressure. The gas enters the second sleeve 31 through the round hole 313. As a result, the force on the left side of piston 311 gradually becomes greater than the force on the right side. Therefore, piston 311 begins to move to the right and spring 312 extends, which in turn pushes sleeve rod 32 to move to the right. When sleeve rod 32 moves, it pushes the first bevel gear 25 to move synchronously. The third prism 30 slides horizontally to the right in connecting sleeve 29 until the first bevel gear 25 and the second bevel gear 26 re-mesh. At this time, the gas pressure on both sides of piston 311 is equal, and spring 312 is in its natural state. Since the connecting sleeve 29 and the first prism 16 can only slide horizontally, when the third prism 30 and the first bevel gear 25 are engaged, the first bevel gear 25 cannot rotate, which in turn restricts the second bevel gear 26, preventing the second bevel gear 26 from rotating. Since the second bevel gear 26 and the third bevel gear 27 are always engaged, the third bevel gear 27 also cannot rotate. This ensures that the knobs 24 on pipes A41 and B42 cannot be rotated during normal gas supply, preventing user error from causing the pipeline to seal.

[0052] The present invention discloses a sealing device and an indoor gas riser that is easy to maintain, which is not only convenient and quick to maintain, but also safer to use, easy for workers to disassemble and for users to use, and has a longer service life, and has great significance for promotion.

[0053] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this disclosure.

Claims

1. A sealing device, comprising a sealing assembly and an adjusting assembly, characterized in that: The sealing assembly includes a partition, a limiting rod, a sealing device, a turntable, a connecting rod, a first prism, and a second prism; The partition is circular and arranged horizontally. Multiple through holes are evenly distributed along the circumference of the partition. Multiple sealing devices, limiting rods, and connecting rods are provided, with each through hole, limiting rod, sealing device, and connecting rod corresponding to the others. The turntable is coaxially mounted on the partition and rotatably connected to it. The upper end of the sealing device is slidably connected to the limiting rod, and the lower end of the sealing device abuts against the partition. The limiting rod is arranged radially along the turntable and parallel to the partition. Both ends of the connecting rod are rotatably connected to the turntable and the sealing device, respectively. The top of the first prism passes through the partition and is coaxially fixed to the bottom of the turntable, while the second prism is coaxially fixed to the bottom of the first prism. The adjusting assembly includes a first sleeve, a transmission rod, a knob, a first bevel gear, a second bevel gear, a third bevel gear, a fixing frame, a connecting sleeve, a second sleeve, a third prism, and a sleeve rod. The first sleeve is arranged vertically and coaxial with the second prism. The second prism is connected to the first sleeve groove. The second bevel gear is fixedly disposed at the bottom of the first sleeve. The transmission rod is arranged horizontally. The knob is disposed at one end of the transmission rod. The third bevel gear is disposed at the other end of the transmission rod. The second bevel gear and the third bevel gear mesh with each other. The first bevel gear is disposed at one end of the third prism. The third prism is slidably disposed horizontally in the connecting sleeve. The connecting sleeve is fixedly disposed in the... At the bottom of the fixed frame, the first bevel gear and the second bevel gear mesh with each other. The second sleeve is fixedly mounted on the fixed frame. One end of the sleeve rod is fixedly connected to the first bevel gear. The second sleeve includes a sleeve body, which is horizontally arranged and coaxially arranged with the sleeve rod. The two ends of the sleeve body are sealed with a first end cap and a second end cap. The first end cap is arranged close to the first bevel gear. The other end of the sleeve rod slides through the first end cap and is inserted into the sleeve body. A piston is slidably sealed inside the sleeve body. The piston is fixedly connected to the other end of the sleeve rod. A spring is connected between the piston and the second end cap. The second end cap has a round hole.

2. The sealing device according to claim 1, characterized in that: The sealing device includes a connecting block and a sealing seat. The sealing seat is disc-shaped, and its axis is arranged vertically. The connecting block is fixedly mounted on the upper surface of the sealing seat. The connecting block and the limiting rod are slidably connected. The lower surface of the sealing seat abuts against the partition.

3. The sealing device according to claim 2, characterized in that: The diameter of the sealing seat is larger than the diameter of the through hole.

4. An indoor gas riser using the sealing device according to any one of claims 1-3, characterized in that: The device includes a first pipe, a second pipe, a connecting assembly, a hose, and a support. The first pipe comprises pipe A and pipe B. Two second pipes, two sealing devices, and two support are provided. The two sealing devices are a first sealing device and a second sealing device. One end of pipe A is detachably connected to one of the second pipes, and one end of pipe B is detachably connected to the other of the second pipes. Both ends of the hose are detachably connected to the other ends of pipe A and pipe B, respectively. The connecting assembly is sleeved on the hose. The adjusting component of the first sealing device is fixed to the inner wall of pipe A via a support. The sealing component of the first sealing device is fixed to the inner wall of the second pipe connected to pipe A. The adjusting component of the second sealing device is fixed to the inner wall of pipe B via another support. The sealing component of the second sealing device is fixed to the inner wall of the second pipe connected to pipe B.

5. An indoor gas riser using a sealing device according to claim 4, characterized in that: The limiting rods in the first and second sealing devices are respectively fixed to the inner walls of the two second pipes.

6. An indoor gas riser using a sealing device according to claim 5, characterized in that: The adjustment components of the first and second sealing devices are respectively fixed on the inner walls of pipe A and pipe B by brackets. The brackets are cross-shaped brackets, with the four ends of one bracket fixed on the inner wall of pipe A and the four ends of the other bracket fixed on the inner wall of pipe B. Both brackets are arranged in a horizontal direction, and the first sleeves of the two adjustment components are respectively rotatably inserted vertically in the center of the two brackets.

7. An indoor gas riser using a sealing device according to claim 6, characterized in that: Pipe A is equipped with a valve, a user pipe, a first flange, and a knob hole. Pipe B is equipped with a knob hole and a first flange. The second pipe is equipped with a second flange. The first flange of pipe A and the second flange of a second pipe are bolted together. The first flange of pipe B and the second flange of another second pipe are bolted together. The transmission rod of the first sealing device passes through the knob hole on pipe A, and the transmission rod of the second sealing device passes through the knob hole on pipe B.

8. An indoor gas riser using a sealing device according to claim 7, characterized in that: Both pipe A and pipe B are provided with a third flange. The hose is provided with a fourth flange and a gas passage. There are two fourth flanges. The connecting assembly includes a fifth flange, a fixing rod, and a protective plate. There are multiple fixing rods and multiple protective plates. There are two fifth flanges. The protective plate is snapped between the two fifth flanges by the fixing rod. One end of the fixing rod passes through one of the fifth flanges, the fourth flange, and the third flange of pipe A and is bolted to it. The other end of the fixing rod passes through another fifth flange, the fourth flange, and the third flange of pipe B and is bolted to it.

9. An indoor gas riser using a sealing device according to claim 8, characterized in that: The mounting bracket of the first sealing device is fixedly installed on the inner wall of pipe A, and the mounting bracket of the second sealing device is fixedly installed on the inner wall of pipe B.

Images