Plugging device and convenient-to-maintain indoor gas vertical pipe using same

Abstract

The utility model discloses a plugging device and a convenient-to-maintain indoor fuel gas vertical pipe using the same, the plugging device comprises a sealing assembly and an adjusting assembly, the indoor fuel gas vertical pipe comprises first pipelines, second pipelines, a connecting assembly, a hose and a support, the first pipelines comprise a pipeline A and a pipeline B, the number of the second pipelines and the plugging device is two, and the connecting assembly is connected with the hose. The plugging devices comprise the first plugging device and the second plugging device, an adjusting assembly of the first plugging device is fixed to the inner wall of a pipeline A, a sealing assembly of the first plugging device is fixed to the inner wall of a second pipeline connected with the pipeline A, and an adjusting assembly of the second plugging device is fixed to the inner wall of a pipeline B; a sealing assembly of the second plugging device is fixed to the inner wall of a second pipeline connected with the pipeline B. One end of the pipeline A is detachably connected with one second pipeline, one end of the pipeline B is detachably connected with the other second pipeline, the two ends of the hose are detachably connected with the other end of the pipeline A and the other end of the pipeline B respectively, and the hose is sleeved with a connecting assembly.

Description

Technical Field

[0001] The invention belongs to the field of gas risers, and in particular relates to a blocking device and an indoor gas riser which is easy to maintain and uses the blocking device. Background Art

[0002] Indoor gas risers are specialized pipelines for transporting natural gas, primarily used to supply gas to various gas-fired appliances, such as water heaters and gas stoves. Metal gas pipes are typically used. Currently, indoor gas risers transport gas to both upstairs and downstairs households. Most indoor gas risers are metal pipes, with branches on the pipe supplying gas to users. When an indoor gas riser leaks or needs to be replaced, that section of pipe needs to be cut. During this operation, workers use welding or threading to secure the replaced pipe, a labor-intensive process and associated operational risks. Not only does the entire building need to be shut down for replacement, but a large amount of natural gas can also be released, resulting in a waste of resources. There is also the risk of leaks due to poor sealing, posing a safety threat to workers and residents.

[0003] In addition, after replacement, there will be a mixture of air and gas inside the new pipeline, which may cause gas explosion. When replacing indoor gas risers, the risk is high and the operation is difficult. Summary of the Invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a blocking device and an indoor gas riser which is easy to maintain and uses the blocking device.

[0005] In a first aspect, the present invention provides a blocking device, comprising a sealing assembly and an adjustment assembly, wherein the sealing assembly comprises a partition, a limiting rod, a sealing device, a rotating disk, a connecting rod, a first prism, and a second prism. The partition is circular and arranged in a horizontal direction, and the partition is uniformly provided with a plurality of through holes along the circumferential direction. The sealing device, the limiting rod, and the connecting rod are each provided with a plurality of through holes, the limiting rod, the sealing device, and the connecting rod correspond to each other. The rotating disk is coaxially arranged on the partition, the rotating disk and the partition are rotatably connected, the upper end of the sealing device is slidably connected to the limiting rod, the lower end of the sealing device abuts the partition, the limiting rod is arranged radially along the rotating disk, the limiting rod and the partition are arranged parallel, the limiting rod is provided with a protrusion near the end of the rotating disk, the two ends of the connecting rod are respectively rotatably connected to the rotating disk and the sealing device, the top of the first prism passes through the partition and is coaxially fixed to the bottom of the rotating disk, 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 is coaxial with the second prism. The second prism is connected to the first sleeve groove. The second bevel gear is fixedly arranged at the bottom of the first sleeve. The transmission rod is arranged in the horizontal direction. The knob is arranged at one end of the transmission rod. The third bevel gear is arranged at the other end of the transmission rod. The second bevel gear and the third bevel gear are meshed with each other. The first bevel gear is arranged at one end of the third prism. The third prism is slidably arranged in the connecting sleeve in the horizontal direction. The connecting sleeve is fixedly arranged in the At the bottom of the fixed frame, the first bevel gear and the second bevel gear are meshed with each other, the second sleeve is fixedly arranged on the fixed frame, one end of the sleeve rod is fixedly connected to the first bevel gear, the second sleeve comprises a sleeve body, the sleeve body is arranged horizontally, the sleeve body and the sleeve rod are arranged coaxially, both ends of the sleeve body are sealed with a first end cover and a second end cover, the first end cover is arranged close to the first bevel gear, the other end of the sleeve rod is slidably sealed through the first end cover and inserted into the sleeve body, a piston is slidably sealed in 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 cover, and a circular hole is provided on the second end cover.

[0006] The present invention provides 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 provided on the upper disk surface of the sealing seat, the connecting block and the limiting rod are slidably connected, and the lower disk surface of the sealing seat abuts against the partition.

[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, wherein the first pipe includes a pipe A and a pipe B, and the second pipe, the sealing device and the bracket are each provided with two, the two sealing devices being a first sealing device and a second sealing device respectively, one end of the pipe A being detachably connected to one of the second pipes, one end of the pipe B being detachably connected to another of the second pipes, both ends of the hose being detachably connected to the other ends of the pipe A and the pipe B respectively, the connecting assembly being sleeved on the hose, the adjusting assembly of the first sealing device being fixed on the inner wall of the pipe A through a bracket, the sealing assembly of the first sealing device being fixed on the inner wall of the second pipe connected to the pipe A, the adjusting assembly of the second sealing device being fixed on the inner wall of the pipe B through another bracket, and the sealing assembly of the second sealing device being fixed on the inner wall of the second pipe connected to the pipe B.

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

[0010] The present invention relates to an indoor gas riser using a blocking device, wherein the adjusting components of the first blocking device and the second blocking device are respectively fixed on the inner walls of pipe A and pipe B by brackets, the brackets are cross-shaped brackets, the four ends of one bracket are fixed on the inner wall of pipe A, and the four ends of the other bracket are fixed on the inner wall of pipe B, the two brackets are arranged in the horizontal direction, and the first sleeves of the two adjusting components are respectively inserted into the centers of the two brackets in a vertically rotatable manner.

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

[0012] The present invention relates to an indoor gas riser using a blocking device, wherein both the pipe A and the pipe B are further provided with a third flange, the hose is provided with a fourth flange and a gas channel, two fourth flanges are provided, the connecting assembly comprises a fifth flange, a fixing rod and a protective plate, there are multiple fixing rods, multiple protective plates, two fifth flanges, the protective plate is clamped between the two fifth flanges via the fixing rod, one end of the fixing rod passes through one fifth flange, the fourth flange and the third flange of the pipe A are connected by bolts, the other end of the fixing rod passes through another fifth flange, the fourth flange and the third flange of the pipe B are connected by bolts, thereby connecting the pipe A, pipe B, the connecting assembly and the hose.

[0013] The present invention provides an indoor gas riser using a blocking device, wherein the fixing frame of the first blocking device is fixedly arranged on the inner wall of the pipe A, and the fixing frame of the second blocking device is fixedly arranged on the inner wall of the pipe B.

[0014] The present invention discloses a sealing device and an indoor gas riser that is easy to maintain and uses the same, which has at least the following beneficial effects: the present invention seals the two second pipes through a sealing component, thereby achieving the disassembly and assembly of the two first pipes in the room while avoiding gas leakage, thereby facilitating the replacement of the first pipes. When replacing the first pipe, it is only necessary to vacuum the pipe at that location, and then the second pipe can be sealed by adjusting the component, thereby simplifying the process of disassembling the pipe. At the same time, since vacuuming is required before the second pipe can be sealed or opened by turning the knob when replacing the first pipe, the second pipe can be prevented from being sealed due to user operating errors during normal use, and the gas cannot be used normally.

[0015] Moreover, the two sections of the first pipeline of the present invention are connected via a hose and a connecting assembly, and the hose is supported by the connecting assembly. When replacing the first pipeline, the flange and the fixing rod on the connecting assembly are removed, and the hose is bent so that the two sections of the first pipeline can be brought closer together under the action of the hose. During the process of the two sections of the first pipeline approaching each other, the first sleeve gradually separates from the second prism. When the second prism completely slides out of the first sleeve, the two first pipelines and the hose can be removed, thereby realizing rapid disassembly and assembly between the first pipeline and the second pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

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

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

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the second sleeve in the present invention;

[0021] Figure 6 A schematic diagram of the three-dimensional structure of the gas riser in the present invention equipped with a connection assembly;

[0022] Figure 7 This is a schematic diagram of the three-dimensional structure of the gas riser in the present invention with the connection assembly removed;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the hose in the present invention.

[0024] Reference numerals:

[0025] 01-sealing assembly; 11-partition plate; 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 frame; 29-connecting sleeve; 30-third prism; 31-second sleeve; 311-piston ;312-spring;313-round hole;314-sleeve body;315-first end cover;316-second end cover;32-sleeve rod;04-first pipeline;41-pipeline A;411-valve;412-user pipe;413-knob hole;414-first flange;415-third flange;42-pipeline B;05-second pipeline;51-second flange;06-connecting assembly;61-fifth flange;62-fixing rod;63-protective plate;07-hose;71-fourth flange;72-gas channel. DETAILED DESCRIPTION

[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 implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0027] As used herein, the term "including" 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 "based, at least in part, 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." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to 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 directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, 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 indicated 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 component 01 and an adjusting component 02, wherein the sealing component 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, wherein the partition is arranged in a horizontal direction, the partition 11 is provided with a through hole 111, the turntable 14 is rotatably set 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 on the partition 11, the sealing device 13 is slidably connected to the limiting rod 12, and the two ends of the connecting rod 15 are respectively rotatably connected to the turntable 14 and the sealing component 01, 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, and the second prism 17 is fixed to the bottom of the first prism 16.

[0029] In sealing assembly 01, multiple through-holes 111, limiting rods 12, sealing devices 13, and connecting rods 15 are provided. The partition 11 is a circular plate, with multiple through-holes 111 evenly spaced along its center. The turntable 14 is coaxially mounted on the partition 11, with the through-holes 111 located on the outer periphery of the turntable 14. The top of the first prism 16 passes through the partition 11 and is coaxially fixed to the bottom of the turntable 14. The partition 11 is stationary, while 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 the number of through-holes 111. These multiple sealing devices 13, limiting rods 12, and connecting rods 15 are evenly spaced along the circumference of the turntable 14, with a one-to-one correspondence between the through-holes 111 and 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 rods 12 are 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 and is slidably connected to the limiting rod 12. That is, the connecting block 131 is slidably mounted on the limiting rod 12. The limiting rod 12 is provided with a protrusion near the end of the rotating disk 14 to restrain the sealing device 13 and prevent it from sliding off the limiting rod 12. The sealing seat 132 abuts the partition 11. The sealing seat 132 is disc-shaped, with its axis arranged vertically. The lower disk surface of the sealing seat 132 abuts the partition 11, and the connecting block 131 is fixedly mounted on the upper disk 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. In order to ensure the sealing 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 methods 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 in a direction away from the turntable 14 through the connecting rod 15, that is, the sealing seat 132 slides close to the through hole 111. At this time, the connecting block 131 slides along the limiting rod 12 in a direction away from the turntable 14 until the sealing seat 132 slides to the through hole 111, thereby 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 in a direction close to the turntable 14 through 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 in a direction close to the turntable 14 until the sealing seat 132 leaves the through hole 111, and the through hole 111 is reopened. It can be seen that during the use of the blocking device, the partition 11 and the limiting rod 12 need to be fixed.

[0032] A second prism 17 is coaxially disposed at the bottom of the first prism 16. That is, the first prism 16 and the second prism 17 are arranged vertically, and the second prism 17 is connected to the adjustment assembly 02. The adjustment assembly can drive the turntable 14 to rotate via the second prism 17 and the first prism 16 to seal and open the through hole 111.

[0033] like Figure 3 、 Figure 4 and Figure 5 As shown, the adjustment 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 bracket 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 is coaxial with the second prism 17. The second prism 17 is connected to the top groove of the first sleeve 22. The second bevel gear 26 is fixedly mounted at the bottom of the first sleeve 22. The transmission rod 23 is arranged horizontally, with the knob 24 at one end and the third bevel gear 27 at the other end. The second bevel gear 26 and the third bevel gear 27 are meshed with each other. The first bevel gear 25 is arranged at one end of the third prism 30, and the third prism 30 is slidably arranged in the connecting sleeve 29 along the horizontal direction. The connecting sleeve 29 is fixedly arranged at the bottom of the fixing frame 28. The first bevel gear 25 and the second bevel gear 26 are engaged 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 vertically). The second sleeve 31 is fixedly arranged 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 slidingly sealed and inserted into the second sleeve 31.

[0034] In the adjustment component 02, a polygonal groove is formed on the top of the first sleeve 22, and the polygonal groove is adapted to the second prism 17. The second prism 17 is inserted into the polygonal groove to achieve the connection between the two grooves, thereby realizing the transmission of the rotational force between the sealing component 01 and the adjustment component 02. Figure 3 As shown, the second bevel gear 26 is fixed at 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 are engaged 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, and the first sleeve 22 then rotates synchronously, thereby driving the second prism 17 to rotate synchronously, thereby achieving the purpose of driving the sealing component 01 through the adjustment component 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 cover 315 and a second end cover 316. The first end cover 315 is arranged close to the first bevel gear 25. The other end of the sleeve rod 32 is inserted into the sleeve body 314 after sliding through the first end cover 315. A piston 311 is slidingly sealed in 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 cover 316. A circular hole 313 is provided on the second end cover 316.

[0036] like Figure 3 As shown, the third prism 30 is slidably inserted on the connecting sleeve 29, the connecting sleeve 29 is horizontally fixed on the fixing frame 28, the first bevel gear 25 is fixed to the right end of the third prism 30, the third prism 30 can slide horizontally on the connecting sleeve 29, and the first bevel gear 25 and the second bevel gear 26 are meshed with each other. Figure 3-5As shown, the right side of the piston 311 is fixed to the left end of the sleeve rod 32, the right end of the sleeve rod 32 is fixed to the left side of the first bevel gear 25, the left side of the piston 311 is fixedly connected to the right end of the spring 312, and the left end of the spring 312 is fixedly connected to the second end cover 316. A circular hole 313 is defined in the second end cover 316. The second sleeve 31 and the sleeve rod 32 form the piston 311 structure. The circular hole 313 allows the air pressure on both sides of the piston 311 in the cavity of the second sleeve 31 to generate an air pressure difference. This air pressure difference enables the piston 311 to perform piston motion in the cavity of the second sleeve 31, that is, the piston 311 moves left or right. The leftward movement of the piston 311 can compress the spring 312, while the rightward movement of the piston 311 can stretch the spring 312. When the piston 311 moves to the right, the sleeve rod 32, the first bevel gear 25 and the third prism 30 are pushed to the right by the piston 311. At this time, the third prism 30 slides horizontally to the right in the connecting sleeve 29 until the first bevel gear 25 and the second bevel gear 26 are meshed, thereby restricting the second bevel gear 26. Conversely, when the piston 311 moves to the left, the sleeve rod 32, the first bevel gear 25 and the third prism 30 are pulled to the left by the piston 311. At this time, the third prism 30 slides horizontally to the left in the connecting sleeve 29 until the first bevel gear 25 and the second bevel gear 26 are separated, thereby releasing the restriction on the second bevel gear 26. The specific driving method of the blocking device will be described in detail later.

[0037] like Figure 1 、 Figure 6 and Figure 7 As shown, the present invention provides an indoor gas riser that is easy to maintain and uses a sealing device, including a first pipe 04, a second pipe 05, a connecting assembly 06 and a hose 07, wherein the first pipe 04 includes a pipe A41 and a pipe B42, and two second pipes 05 are provided. One end of the pipe A41 is detachably connected to one second pipe 05, one end of the pipe B42 is detachably connected to the other second pipe 05, and both ends of the hose 07 are detachably connected to the other ends of the pipe A41 and the pipe B42, respectively. The connecting assembly 06 is sleeved on the hose 07, and the pipe A41 is provided with a valve 411, a user pipe 412, a first flange 414 and a knob hole 413. The 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 the pipe A41 is bolted to the second flange 51 of the one second pipe 05, and the first flange 414 of the pipe B42 is bolted to the second flange 51 of the other second pipe 05.

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

[0039] The first pipeline 04 includes pipeline A41 and pipeline B42, wherein pipeline A41 and pipeline B42 as well as hose 07 and connecting assembly 06 are all arranged vertically indoors for easy replacement and maintenance. During the construction of the building, the two second pipelines 05 are respectively buried vertically in the floor and ceiling of the building. The user pipe 412 runs through pipeline A41 for supplying gas to the house. The valve 411 is set through pipeline A41 and can also be set on pipeline B42 for releasing the gas in the pipeline and vacuuming.

[0040] The sealing assemblies 01 of the first and second sealing devices are respectively fixed to the inner walls of the two second pipes 05. For each sealing assembly 01, the end of the limiting rod 12, away from the rotating disk 14, is fixed to the inner wall of the second pipe 05. The outer periphery of the partition 11 is fixedly connected to the inner wall of the second pipe 05. The limiting rod 12 and partition 11 are both arranged horizontally. With this arrangement, the second prism 17 in the sealing assembly 01 extends vertically within the second pipe 05 toward the first pipe 04.

[0041] The adjustment components 02 of the first and second plugging devices are fixed to the inner walls of pipes A41 and B42, respectively, via brackets 21. Brackets 21 are cross-shaped brackets, with the four ends of one bracket 21 fixed to the inner wall of pipe A41, and the four ends of the other bracket 21 fixed to the inner wall of pipe B42. Both brackets 21 are arranged horizontally. For each adjustment component 02, a first sleeve 22 is vertically rotatably inserted into the center of bracket 21. The connection between bracket 21 and first sleeve 22 can be a ball-bearing rotating connection or other connection methods that produce the same effect. Bracket 21 firmly supports first sleeve 22, ensuring that first sleeve 22 and second prism 17 in 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 pipeline 05 are tightly connected to the pipeline A41 and the pipeline B42 respectively. Then the first flanges 414 on the pipeline A41 and the pipeline B42 are respectively connected to the second flanges 51 on the two sections of the second pipeline 05 by bolts, thereby achieving the connection between the first pipeline 04 and the second pipeline 05 and the sealing of the connection to prevent gas leakage. In order to enhance the sealing, a gasket can also be inserted at the connection.

[0042] For each adjustment assembly 02 , the fixing bracket 28 can be set at any position on the same horizontal plane of the inner wall of the pipe A 41 or the pipe B 42 , and can achieve the purpose of limiting or releasing the limitation of the second bevel gear 26 by the first bevel gear 25 .

[0043] like Figure 6 、 Figure 7 and Figure 8 As shown, both pipe A41 and pipe B42 are further provided with a third flange 415, and hose 07 is provided with a fourth flange 71 and a gas channel 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, multiple protective plates 63, and two fifth flanges 61. The protective plate 63 is clamped between the two fifth flanges 61 through 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 connected by bolts. 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 connected by bolts, thereby connecting pipe A41, pipe B42, connecting assembly 06 and hose 07.

[0044] Hose 07 is provided with a fourth flange 71 at each end, which mates with the third 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 on the upper end of hose 07, and the third flange 415 on pipe A41, then is tightened with bolts. The lower end of the fixing rod 62 passes through another fifth flange 61, the fourth flange 71 on the lower end of hose 07, and the third flange 415 on pipe B42, then is tightened with bolts, thus connecting pipes A41, B42, connection assembly 06, and hose 07. A protective plate 63 is sandwiched between the gap formed by the fixing rod 62 and the fifth flange 61, protecting hose 07 and enhancing the seal at the connection. This ensures that pipes A41, B42, and hose 07 are connected, ensuring that gas can flow through pipes A41, B42, the gas channel 72 of hose 07, and the two second pipes 05 to the residents on the upper and lower floors.

[0045] It should be noted that before the sealing device in the present invention is used, a certain air pressure is maintained in the cavity between the piston 311 of the second sleeve 31 and the first end cover 315. The value of the air pressure can be determined according to actual conditions. For example, the air pressure can be set to be equal to the gas pressure of the gas riser.

[0046] The first plugging device and the second plugging device are arranged in a mirror-image arrangement in the gas riser, that is, the sealing component in the first plugging device is located above the adjustment component, and the sealing component in the second plugging device is located below the adjustment component.

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

[0048] At this time, the operator only needs to rotate the knob 24 on the pipe A41 and the pipe B42. During the rotation of the knob 24, the transmission rod 23 drives the third bevel gear 27 to rotate synchronously, and 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 is driven to rotate synchronously. When the turntable 14 rotates, it pushes the connecting rod 15 to move, and 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, the two sections of the second pipe 05 are also sealed.

[0049] At this time, first remove the connection between the first flange 414 and the second flange 51 on the pipe A41, and then remove 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 flexibility and is not easy to break or damage, the pipe A41 and the pipe B42 are now close to each other under the action of the hose 07. During the approach process, the first sleeve 22 in the pipe A41 gradually separates from the second prism 17 in the upper end second pipe 05. At this time, remove the connection between the first flange 414 and the second flange 51 on the pipe B42. After the second prism 17 completely slides out of the first sleeve 22, remove the pipe A41, pipe B42 and the hose 07.

[0050] At this time, the new pipe A41, pipe B42 and hose 07 are fixed through flanges. If only pipe A41, pipe B42 or hose 07 needs to be replaced, it is only necessary to remove the relevant connecting flanges for replacement. After replacement, the first pipe 04, hose 07, connecting assembly 06 and second pipe 05 are connected in sequence with bolts. Since there is air in the new pipe, in order to prevent explosion, the gas in the pipe is again extracted through valve 411 to generate negative pressure. Similarly, due to the pressure difference, the 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 to drive the sealing assembly 01 through the adjustment assembly 02, so that each sealing seat 132 slides on the partition 11 away from the through hole 111, and the gas supply of the building's gas pipeline is restored.

[0051] When the gas supply is restored, the air pressure in pipe A41 and pipe B42 returns to normal from negative pressure, and the gas enters the second sleeve 31 through the circular hole 313, so the force on the left side of the piston 311 gradually becomes greater than the force on the right side, so the piston 311 starts to move to the right and the spring 312 stretches, thereby pushing the sleeve rod 32 to translate to the right. When the sleeve rod 32 moves, it pushes the first bevel gear 25 to move synchronously, and the third prism 30 slides horizontally to the right in the connecting sleeve 29 until the first bevel gear 25 and the second bevel gear 26 are re-engaged. At this time, the air pressure on both sides of the piston 311 is equal, and the spring 312 is in a natural state. Since the connecting sleeve 29 and the first prism 16 can only slide in the horizontal direction, when the third prism 30 and the first bevel gear 25 are engaged, the first bevel gear 25 cannot rotate, thereby restricting the second bevel gear 26, making the second bevel gear 26 unable to rotate. Since the second bevel gear 26 and the third bevel gear 27 are always engaged, the third bevel gear 27 cannot rotate either, thereby achieving the goal that during the normal air supply process, the knobs 24 on the pipes A41 and B42 cannot be rotated, thereby avoiding the situation where the pipeline is sealed due to user error operation.

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

[0053] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present disclosure.

Claims

1. A blocking 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 rotating disk, a connecting rod, a first prism and a second prism; The partition is circular and arranged in the horizontal direction, and the partition is evenly provided with a plurality of through holes in the circumferential direction. The sealing device, the limiting rod and the connecting rod are all provided with a plurality of them, and the through holes, the limiting rod, the sealing device and the connecting rod correspond to each other one by one. The turntable is coaxially arranged on the partition, and the turntable and the 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 along the radial direction of the turntable, and the limiting rod and the partition are arranged parallel to each other. A protrusion is provided on the limiting rod near the end of the turntable, and the two ends of the connecting rod are respectively rotatably connected to the turntable and the sealing device. 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 is coaxial with the second prism. The second prism is connected to the first sleeve groove. The second bevel gear is fixedly arranged at the bottom of the first sleeve. The transmission rod is arranged in the horizontal direction. The knob is arranged at one end of the transmission rod. The third bevel gear is arranged at the other end of the transmission rod. The second bevel gear and the third bevel gear are meshed with each other. The first bevel gear is arranged at one end of the third prism. The third prism is slidably arranged in the connecting sleeve in the horizontal direction. The connecting sleeve is fixedly arranged in the At the bottom of the fixed frame, the first bevel gear and the second bevel gear are meshed with each other, the second sleeve is fixedly arranged on the fixed frame, one end of the sleeve rod is fixedly connected to the first bevel gear, the second sleeve comprises a sleeve body, the sleeve body is arranged horizontally, the sleeve body and the sleeve rod are arranged coaxially, both ends of the sleeve body are sealed with a first end cover and a second end cover, the first end cover is arranged close to the first bevel gear, the other end of the sleeve rod is slidably sealed through the first end cover and inserted into the sleeve body, a piston is slidably sealed in 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 cover, and a circular hole is provided on the second end cover.

2. The blocking 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 the axis of the sealing seat is arranged vertically. The connecting block is fixed on the upper disk surface of the sealing seat. The connecting block and the limiting rod are slidably connected, and the lower disk surface of the sealing seat abuts against the partition.

3. The blocking 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 blocking device according to any one of claims 1 to 3, characterized in that: It includes a first pipeline, a second pipeline, a connecting component, a hose and a bracket, wherein the first pipeline includes pipeline A and pipeline B, and the second pipeline, the blocking device and the bracket are each provided with two, the two blocking devices are respectively a first blocking device and a second blocking device, one end of the pipeline A is detachably connected to one of the second pipelines, one end of the pipeline B is detachably connected to the other second pipeline, the two ends of the hose are respectively detachably connected to the pipeline A and the other end of the pipeline B, the connecting component is sleeved on the hose, the adjusting component of the first blocking device is fixed on the inner wall of the pipeline A through a bracket, the sealing component of the first blocking device is fixed on the inner wall of the second pipeline connected to the pipeline A, the adjusting component of the second blocking device is fixed on the inner wall of the pipeline B through another bracket, and the sealing component of the second blocking device is fixed on the inner wall of the second pipeline connected to the pipeline B.

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

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

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

8. An indoor gas riser using a blocking device according to claim 7, characterized in that: Both the pipeline A and the pipeline B are also provided with a third flange, the hose is provided with a fourth flange and a gas channel, there are two fourth flanges, the connecting assembly includes a fifth flange, a fixing rod and a protective plate, there are multiple fixing rods, there are multiple protective plates, there are two fifth flanges, the protective plate is clamped between the two fifth flanges via the fixing rod, one end of the fixing rod passes through one fifth flange, the fourth flange and the third flange of the pipeline A are connected by bolts, and the other end of the fixing rod passes through another fifth flange, the fourth flange and the third flange of the pipeline B are connected by bolts.

9. An indoor gas riser using a blocking device according to claim 8, characterized in that: The fixing frame of the first plugging device is fixedly arranged on the inner wall of pipeline A, and the fixing frame of the second plugging device is fixedly arranged on the inner wall of pipeline B.

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