Pipeline valve

Abstract

The invention belongs to the technical field of valves, and particularly relates to a pipeline valve. The valve leakage detection device has the beneficial effects that the valve leakage detection device can be installed in all directions, and the valve leakage condition can be quickly detected without frequent observation. A pipeline valve comprises a main valve body, a valve clack is rotationally connected into the main valve body, one end of a valve rod is fixedly connected to the valve clack, the other end of the valve rod penetrates through the main valve body and is fixedly connected to a handle, a sealing detection part is arranged on the outer side of the main valve body, the valve rod is sleeved with the sealing detection part, and the sealing detection part comprises an outer sealing layer. Side seals are arranged on the upper side and the lower side of the outer sealing layer, an inner sealing layer is fixedly connected to the inner side of the outer sealing layer, a sealing layer opening is formed in the inner sealing layer, a plurality of hoop rings are fixedly connected to the outer side of the outer sealing layer, a detection rotating ring is further fixedly connected to the outer sealing layer, an outer transmission ring is rotationally connected to the outer side of the detection rotating ring, an L-shaped folding pipe is fixedly connected to the outer transmission ring, and the L-shaped folding pipe is of an L-shaped structure. And a water level warning device is inserted into the L-shaped folding pipe.

Description

Technical Field

[0001] The present invention belongs to the technical field of valves, and particularly relates to a pipeline valve. Background Art

[0002] In a pipeline system, as a component connecting pipelines, a valve has a relatively large leakage risk at the connection position compared to the pipeline itself. Especially in a pipeline system for transporting gas, due to the poor gas tightness, special attention needs to be paid to the potential safety hazard of valve leakage. Although a gas induction alarm can be used to give an alarm in time after detecting leakage, because gas is easy to diffuse, when the leakage reaches a certain concentration and the alarm can detect it, it usually has leaked to a large area, forming a safety hazard. For example, the gas pipeline valve installed in a household has a particularly serious impact after gas leakage.

[0003] A gas pipeline safety valve with the application number 202410323125.1 mentions a detection cavity filled with soapy water inside the valve, and judges whether there is gas leakage by observing the liquid inlet situation in the detection cavity. It can judge whether the valve leaks through the dripping situation of the liquid. However, when the pipeline is installed inside a cabinet, since it is difficult to directly observe the valve, this method cannot judge the gas leakage situation in time. And this valve requires the pipeline to be horizontally installed. When the pipeline is vertically installed, the soapy water in the detection cavity is likely to pour, and it cannot play a prompting effect. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the present invention provides a pipeline valve, and the beneficial effect is that the present invention can be installed in all directions, and can quickly detect the valve leakage situation without frequent observation.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] A pipeline valve includes a main valve body. A valve flap is rotatably connected inside the main valve body. One end of a valve stem is fixedly connected to the valve flap, and the other end of the valve stem passes through the main valve body and is fixedly connected to a handle. A seal detection part is arranged outside the main valve body. The seal detection part is sleeved outside the valve stem. The seal detection part includes an outer seal layer, side seal openings and an inner seal layer. Side seal openings are arranged on both the upper and lower sides of the outer seal layer. The inner seal layer is fixedly connected to the inside of the outer seal layer. A seal layer opening is formed on the inner seal layer. A plurality of hoop rings are fixedly connected to the outside of the outer seal layer. A detection rotating ring is also fixedly connected to the outer seal layer. An outer transmission ring is rotatably connected to the outside of the detection rotating ring. An L-shaped folding pipe is fixedly connected to the outer transmission ring. The L-shaped folding pipe is of an L-shaped structure, and a water level warning device is inserted into the L-shaped folding pipe.

[0007] An inner push sleeve is slidably connected to the inside of the detection rotating ring. The inner push sleeve is sleeved outside the valve stem. The inner end of the inner push sleeve is fixedly connected to the inner seal layer, and the outer end of the inner push sleeve extends out of the detection rotating ring.

[0008] The detection swivel and the outer transmission ring are connected by a ratchet, and the outer end of the L-shaped bent pipe bends in the same direction as the rotation direction of the ratchet.

[0009] The L-shaped bent pipe is made of a transparent material.

[0010] There are multiple openings in the sealing layer, and the multiple openings of the sealing layer are evenly distributed on the inner sealing layer. Description of the Drawings

[0011] The present invention will be further described in detail below in conjunction with the drawings and specific implementation methods.

[0012] Figure 1 It is an overall structure diagram of a pipeline valve;

[0013] Figure 2 It is an overall cross-sectional view of a pipeline valve;

[0014] Figure 3 It is an internal structure diagram of a pipeline valve;

[0015] Figure 4 It is Figure 3 A partial enlarged structural schematic diagram of part I in

[0016] Figure 5 It is a schematic diagram of the position of the sealing layer opening;

[0017] Figure 6 It is an installation schematic diagram of the outer transmission ring;

[0018] Figure 7 It is a structural schematic diagram of the detection swivel and the inner push sleeve;

[0019] Figure 8 It is an installation schematic diagram of the detection swivel and the inner push sleeve;

[0020] Figure 9 It is an installation cross-sectional view of the water level warning device;

[0021] Figure 10 It is a direction schematic diagram of the bending direction of the L-shaped bent pipe and the rotation direction of the outer transmission ring;

[0022] Figure 11 It is a communication schematic diagram of clear water in the detection cavity and the L-shaped bent pipe. Specific Embodiments

[0023] As Figures 1-4 shown:

[0024] A pipeline valve, comprising a main valve body 000, a valve flap 010 is rotatably connected inside the main valve body 000, one end of a valve rod 020 is detachably connected to the valve flap 010, the other end of the valve rod 020 passes through the main valve body 000 and is connected to a handle 030 by a screw. A sealing detection part 100 is arranged outside the main valve body 000, the sealing detection part 100 is sleeved outside the valve rod 020, the sealing detection part 100 includes an outer sealing layer 110, side sealing mouths 120 and an inner sealing layer 130. Side sealing mouths 120 are bonded to both the upper and lower sides of the outer sealing layer 110. An inner sealing layer 130 is arranged inside the outer sealing layer 110, and the outer sealing layer 110 and the inner sealing layer 130 can be adhesively bonded to the side sealing mouths 120 in sequence. The outer sealing layer 110, the side sealing mouths 120 and the inner sealing layer 130 are all made of deformable materials, and the outer sealing layer 110, the side sealing mouths 120 and the inner sealing layer 130 can also be integrally formed by a mold to improve the sealing performance. A sealing layer opening 131 is formed on the inner sealing layer 130. Under normal conditions, the sealing layer opening 131 is in a closed state. A plurality of hoop rings 140 are adhesively bonded to the outside of the outer sealing layer 110. A detection rotating ring 150 is also adhesively bonded to the outer sealing layer 110. An outer transmission ring 160 is rotatably connected to the outside of the detection rotating ring 150. A water level outlet is formed on the outer transmission ring 160. An L-shaped bent pipe 161 is adhesively bonded at the position of the water level outlet. The L-shaped bent pipe 161 has an L-shaped structure. A water level warning device 170 is inserted into the L-shaped bent pipe 161. The water level warning device 170 is an electronic liquid level alarm with a sound alarm device, such as the Xingke XKC-Y26A non-contact liquid level sensor, which will not be elaborated here. The width of the sealing layer opening is not greater than 0.2 mm, and the length of the sealing layer opening is not greater than 0.5 cm; as Figures 3-4 shown, a pipeline cavity inside the main valve body 000, a sealing cavity between the main valve body 000 and the inner sealing layer 130, and a detection cavity between the outer sealing layer 110 and the inner sealing layer 130 can be formed inside the valve. As Figure 11 shown, the detection cavity is communicated with the L-shaped bent pipe 161 through the inside of the detection rotating ring 150, the inside of the outer transmission ring 160, and the water level outlet arranged on the outer transmission ring 160. When the gas in the sealing cavity squeezes the clear water in the detection cavity, the clear water can enter the inside of the outer transmission ring 160 along the internal gap of the detection rotating ring 150 from the detection cavity, and enter the L-shaped bent pipe 161 through the water level outlet formed on the outer transmission ring 160. During the rotation of the outer transmission ring 160, the inner and outer sides of the outer transmission ring 160 can be kept sealed with the detection rotating ring 150 through a sealing layer, or a sealing groove provided with sealing oil, or a sealing bearing, etc., and can rotate relatively. During the rotation, the water level outlet is always located between the clear water inside the outer transmission ring 160 and the L-shaped bent pipe 161.

[0025] During the manufacturing process of the valve, the valve stem 020 can be removed from the valve flap 010 in advance. The assembled or integrally formed seal detection part 100 is sleeved outside the main valve body 000, and then the valve stem 020 passes through the seal detection part 100 and is connected to the valve flap 010. The valve stem 020 and the valve flap 010 can be connected by bonding, threaded connection, plug connection or other detachable connection methods. Then, multiple hoop rings 140 can be bonded to the outside of the outer sealing layer 110 in sequence from large to small, thus completing the manufacturing and installation work of the valve. At the same time, when the valve is used for a long time and the deformable part of the seal detection part 100 ages, the seal detection part 100 can be directly and destructively removed and the hoop rings 140 can be taken off, thus simply completing the replacement work of the seal detection part 100.

[0026] In addition, by bonding to complete the connection between the seal detection part 100 and the hoop rings 140, the detection rotating ring 150, and the outer transmission ring 160 and the L-shaped bent pipe 161, it is possible to reduce the difficulty of replacement operation and production cost. At the same time, by coating the liquid adhesive, it is possible to avoid the occurrence of gaps at the connection position, resulting in incomplete sealing.

[0027] When the valve is installed, the water level warning device 170 can be removed first. Clear water is injected into the detection cavity through the L-shaped bent pipe 161. At this time, the inner sealing layer 130 can be pulled inward from the side seal 120 into the inside of the valve, increasing the volume of the seal cavity, and then more clear water can be accommodated. Then, the L-shaped bent pipe 161 can be placed at the upper end position, and the inner sealing layer 130 can be pushed outward to reset, so that the clear water can gradually submerge the detection cavity from bottom to top, thus completing the preparatory work before valve installation. Then, the upper and lower side seals 120 are pressed toward the center, so that the main valve body 000 can be exposed. At this time, the hoop rings 140 can maintain the cross-sectional shape of the seal detection part 100, avoiding the lateral deformation or non-resetting of the seal detection part 100. Then, the main valve body 000 can be installed in the pipeline, and then the side seals 120 can be manually reset, so that the two side seals 120 can be respectively sleeved on both sides of the pipeline. Then, the side seals 120 can be tightly fastened to the outside of the pipeline by means of nylon ties, etc., so that the valve can be further sealed by the seal detection part 100, avoiding the immediate diffusion of the gas leaked inside the valve into the air. In addition, the side seals 120 made of deformable materials can also avoid the situation where they cannot be sleeved on the outside of the pipeline when the pipeline is too thick or there are bends and foreign objects that are difficult to remove, avoiding the situation where the valve cannot be installed normally. Then, the outer transmission ring 160 can be rotated so that the outer end of the L-shaped bent pipe 161 is in the vertically upward state, and then the water level warning device 170 is inserted into the L-shaped bent pipe 161, thus completing all the installation work of the valve.

[0028] Embodiment 1 of valve installation: Completely immerse the detection cavity with clean water. During the process of pressing the side seal 120, the two side seals 120 can be sequentially pressed inward and fixed, so that only part of the clean water in the detection cavity overflows. After the sealed detection part 100 is restored, the detection cavity can adsorb the clean water remaining in the L-shaped bent pipe 161 inward and refill the cavity with clean water again. That is, after the valve installation is completed, the liquid level in the detection cavity is located inside the outer end of the vertically arranged L-shaped bent pipe 161, so that the valve installation work can be completed.

[0029] Embodiment 2 of valve installation: During the process of immersing the detection cavity with clean water, place the outer end of the L-shaped bent pipe 161 horizontally and the inner end vertically, so that the clean water can only immerse to the height of the top of the inner end of the L-shaped bent pipe 161. During the process of pressing the side seal 120, ensure that the clean water does not overflow from the L-shaped bent pipe 161, that is, the liquid level in the detection cavity is located at the L-shaped corner of the L-shaped bent pipe 161, so that the valve installation work can be completed.

[0030] Embodiment 3 of valve installation: First install the valve inside the pipeline, then inject water into the L-shaped bent pipe 161 through a thin tube or a syringe until the inner sealing layer 130 deforms. Then, the valve can be rotated to make the detection rotating ring 150 face upward. At this time, the sealed detection part 100 can be squeezed and kneaded to make the air in the detection cavity move upward and overflow through the L-shaped bent pipe 161, and at the same time, the excess water in the detection cavity is squeezed out. Finally, the valve is rotated back to its original position and fixed to complete the valve installation work. This installation method can only be used for the interior of horizontally installed pipelines.

[0031] Through the width and length limitation of the sealing layer opening 131, it can be ensured that the clean water does not overflow from the inside of the sealing layer opening 131, and the deformation of the inner sealing layer 130 will not affect the sealing layer opening 131, ensuring that when the side seal 120 is pressed and the sealed detection part 100 deforms, the sealing layer opening 131 will not deform and increase, resulting in clean water entering the sealed cavity, and at the same time, the gas in the sealed cavity can enter the detection cavity.

[0032] After the valve is installed, the valve stem 020 can be controlled by rotating the handle 030, and then the valve flap 010 can be controlled. By rotating the valve flap 010 in the pipeline cavity, the inside of the main valve body 000 can be blocked or connected, and then the opening and closing of the valve can be normally controlled; when the valve leaks, since the direct connection positions between the valve and the pipeline, namely the upper and lower ends of the main valve body 000 connected to the pipeline and the connection between the valve stem 020 and the main valve body 000, are all located inside the sealed detection part 100, that is, as Figure 3As shown, the above positions are all located inside the sealed cavity, so that the gas can be secondary sealed by closing the sealed cavity to prevent the valve from escaping into the air immediately after leakage, so as to buy time for the user to detect the situation and deal with it. At this time, the continuously leaking gas can increase the overall air pressure in the sealed cavity, so that the gas pushes the sealing layer opening 131 to open under the pressure, so that the gas can enter the detection cavity under the action of air pressure. In this process, since the amount of clean water in the detection cavity is small and the opening of the sealing layer 131 is small, after the gas pressure presses the sealing layer opening 131 to open, the clean water in the detection cavity can be pushed backward under the action of tension, that is, at this time, the gas can push the clean water in the detection cavity to move toward the L-shaped folded tube 161 until the liquid surface in the L-shaped folded tube 161 contacts the water level alarm 170, triggering the sound alarm of the water level alarm 170, thereby ensuring that when the valve is installed in an invisible and seldom-seen area, the valve leakage information can be received by sound, and the gas leakage situation can be quickly judged. In addition, since the valve drives the liquid level change through the gas pressure of the leaking gas, compared with ordinary gas alarms, it has the advantages of controllable leakage area and sensitive response. Compared with safety valves that need to be judged visually, it has the advantage of being able to actively alarm in an invisible state. Moreover, since the external transmission ring 160 can rotate on the detection swivel 150, after the valve is installed, the water level alarm 170 can be manually adjusted to a vertical state. That is, the valve can be installed in all directions and the prompt effect is always maintained.

[0033] In addition, since the valve has a separate detection cavity outside the sealing cavity, and the width of the sealing layer opening 131 is less than 0.2 mm, the surface tension of the clean water near the sealing layer opening 131 can ensure that the clean water in the detection cavity can remain inside the detection cavity, and will not enter the sealing cavity through the sealing layer opening 131. When the sealing detection part 100 is pressed, part of the sealing layer opening 131 is opened. At this time, since the sealing layer opening 131 is small and the outer end of the L-shaped folded tube 161 is open, when the detection cavity is pressurized, the clean water with a smaller surface area can assist the sealing layer opening 131 to seal through the surface tension, so that the clean water can overflow through the L-shaped folded tube 161 first. When there is a lot of gas leakage, resulting in a high air pressure inside the sealing cavity, the sealing layer opening 131 is opened under pressure. At this time, the gas pressure is much greater than the internal hydraulic pressure of the clean water, and the clean water can be pushed outward through the L-shaped folded tube 161 through the pressure difference. Moreover, the gas can generate air pressure in any direction in the sealed cavity, that is, when the sealing layer opening 131 is located at any position, the gas can enter the detection cavity through the sealing layer opening 131, and since the interior of the detection cavity is narrow, that is, the mass of clean water inside the detection cavity is small, it can ensure that the air pressure required for the gas to push the clean water to move is small, and further ensure that after the gas leaks, the liquid level can be quickly pushed to generate an alarm, thereby buying reaction time for subsequent processing.

[0034] Meanwhile, since a relatively small air pressure is required to push the clear water to move, that is, after the side seal 120 secondarily seals the upper and lower ends of the seal detection part 100, the seal layer opening 131 can serve as a decompression and air leakage port. After the gas pressure reaches a certain level, the gas can preferentially leak out through the seal layer opening 131, thereby reducing the pressure on the positions where the upper and lower end side seals 120 and the valve stem 020 communicate outward, further preventing gas from leaking from other positions, improving the safety of the valve, and further ensuring that the leaked gas can be sealed inside the sealed cavity. At this time, the pushed clear water can also play a sealing effect on the gas, further ensuring that the gas in the sealed cavity will not leak before the alarm is triggered. Preferably, in addition to being applied to household gas pipelines, the present invention can also be applied to other gas transmission pipelines that are insoluble in water, or after replacing the medium in the detection cavity, it can be applied to other applicable gas transmission pipelines.

[0035] As Figures 6-8 shown:

[0036] The inner side of the detection rotating ring 150 is slidably connected with an inner pushing sleeve 180. The inner pushing sleeve 180 is sleeved outside the valve stem 020 and is sealed with the valve stem 020 through a sealing layer. The inner end of the inner pushing sleeve 180 is bonded to the inner sealing layer 130, and the outer end is sealed to the outer sealing ring 160 through a sealing layer or a sealing groove provided with sealing oil, or a sealing bearing, etc. The outer end of the inner pushing sleeve 180 extends out of the detection rotating ring 150.

[0037] When the valve is installed inside the pipeline and the alarm has been triggered, resulting in the clear water in the detection cavity overflowing and flowing away due to the too high liquid level exceeding the outer end of the L-shaped bent pipe 161 and being unable to continue maintaining the fast alarm function, the water level warning device 170 can be removed, the outer transmission ring 160 can be rotated to make the outer end of the L-shaped bent pipe 161 face downward and immersed in a container filled with clear water. At this time, the inner pushing sleeve 180 can be pushed inward, so that the inner pushing sleeve 180 can push the inner sealing layer 130 inward, thereby increasing the volume of the detection cavity and enabling the L-shaped bent pipe 161 to suck the clear water in the container. Then, the outer transmission ring 160 can be rotated again to make the outer end of the L-shaped bent pipe 161 face upward, and the inner pushing sleeve 180 can be pulled outward to reset, so that the air and the excess clear water can be squeezed out from the outer end of the L-shaped bent pipe 161. The excess water in the L-shaped bent pipe 161 can be directly sucked by using a tissue or the like, thereby replenishing the water in the detection cavity without removing the valve.

[0038] As Figure 10 shown:

[0039] A ratchet connection is provided between the detection swivel 150 and the outer transmission ring 160. The L-shaped folding pipe 161 has an L-shaped structure, and the outer end of the L-shaped folding pipe 161 folds in the same direction as the rotation direction of the ratchet. The ratchet connection can ensure one-way rotation between the detection swivel 150 and the outer transmission ring 160. When the outer end of the L-shaped folding pipe 161 is in the vertically upward position, the ratchet can jam the outer transmission ring 160, preventing the outer transmission ring 160 from rotating under the gravity of the outer L-shaped folding pipe 161 and the water level warning device 170, ensuring that the L-shaped folding pipe 161 and the water level warning device 170 can continuously remain in the vertically upward position, and thus ensuring that the valve alarm effect will not change.

[0040] Furthermore:

[0041] The L-shaped folding pipe 161 is made of a transparent material, enabling direct observation of the liquid level position inside the L-shaped folding pipe 161 through the transparent material, facilitating the adjustment of the valve response sensitivity and preventing clear water from overflowing during the valve installation process.

[0042] As Figure 5 shown:

[0043] A plurality of sealing layer openings 131 are provided, and the plurality of sealing layer openings 131 are evenly distributed on the inner sealing layer 130. This ensures that gas can push the clear water from all directions through the evenly distributed plurality of sealing layer openings 131. When a certain sealing layer opening 131 is adhered due to oil, dust, aging, or other reasons, the pressure relief effect can be ensured through other sealing layer openings 131, ensuring that the leaked gas can push the clear water to move when the generated pressure is sufficient, further ensuring the stability of valve use.

[0044] Furthermore:

[0045] The sealing layer opening 131 protrudes towards the outer sealing layer 110 and does not contact the inner wall of the outer sealing layer 110. The sealing layer opening 131 can be processed by ironing the inner side of the inner sealing layer 130 with a heated mold, causing the edge of the sealing layer opening 131 to thermally deform outward after heating, generating a valve flap that protrudes outward. When clear water is injected into the detection cavity, the clear water can generate an inward pressure, causing the valve flap that protrudes outward of the sealing layer opening 131 to close under the action of the pressure. This can further ensure that the clear water under normal conditions does not enter the sealed cavity through the sealing layer opening 131. When the leaked gas needs to enter the detection cavity through the sealing layer opening 131, the valve flap of the sealing layer opening 131 can open and protrude outward again, that is, the valve flap that protrudes outward can actually act as a check valve, preventing the clear water from entering the sealed cavity during the deformation of the detection cavity.

[0046] In addition, by using the method of thermal deformation to process the seal layer opening 131, while generating the valve flap, the thickness of the edge part of the seal layer opening 131 can be thinned, that is, while ensuring that the overall shape of the inner seal layer 130 remains unchanged in strength, the valve flap near the seal layer opening 131 can be more easily deformed and pushed, providing convenience for improving the sensitivity of the valve.

[0047] Furthermore:

[0048] The outer seal layer 110, the side seal opening 120 and the inner seal layer 130 are all made of rubber material. The rubber outer seal layer 110, side seal opening 120 and inner seal layer 130 can maintain their own shapes while providing a certain amount of deformation, ensuring that the deformation process will not affect the valve sealing performance.

[0049] As Figures 2-3 shown:

[0050] The inner wall of the inner seal layer 130 does not contact the outer wall of the main valve body 000. Thus, it can ensure that the detection cavity has enough deformation space, avoiding the situation where the detection cavity cannot be filled with water for replenishment and cannot be used normally.

[0051] As Figure 5 shown:

[0052] A side seal bar 121 is arranged on the outside of the side seal opening 120. During the process of sealing the side seal opening 120 by nylon tie straps or other means, the side seal bar 121 can block the tie straps and the like, preventing the tie straps from slipping off the side seal opening 120 and causing the sealing and fixing of the side seal opening 120 to fail.

[0053] As Figures 1-2 shown:

[0054] The outer seal layer 110 is made of transparent material, and the intervals between the multiple hoop rings 140 are of the same height. Thus, the water level of the clear water inside the detection cavity can be observed through the outer seal layer 110, avoiding the situation where too much air remains in the detection cavity, resulting in less clear water and the gas being unable to normally push the clear water to move. At this time, the hoop rings 140 with the same interval height can play the role of a scale, simply achieving the effect of judging the capacity of the clear water inside the detection cavity.

Claims

1. A pipeline valve, characterized in that: It includes a main valve body, a valve flap is rotatably connected inside the main valve body, one end of a valve stem is fixedly connected to the valve flap, the other end of the valve stem passes through the main valve body and is fixedly connected to a handle, a seal detection part is arranged outside the main valve body, the seal detection part is sleeved outside the valve stem, the seal detection part includes an outer sealing layer, side sealing openings and an inner sealing layer, side sealing openings are arranged on both the upper and lower sides of the outer sealing layer, the inner sealing layer is fixedly connected to the inner side of the outer sealing layer, a sealing layer opening is formed in the inner sealing layer, a plurality of hoop rings are fixedly connected to the outer side of the outer sealing layer, a detection rotating ring is also fixedly connected to the outer sealing layer, an outer transmission ring is rotatably connected to the outer side of the detection rotating ring, an L-shaped bent pipe is fixedly connected to the outer transmission ring, the L-shaped bent pipe is of an L-shaped structure, a water level warning device is inserted into the L-shaped bent pipe, the width of the sealing layer opening is not greater than 0.2 mm, and the length of the sealing layer opening is not greater than 0.5 cm.

2. The pipeline valve according to claim 1, characterized in that: An inner push sleeve is slidably connected to the inner side of the detection rotating ring, the inner push sleeve is sleeved outside the valve stem and is sealed with the valve stem through a sealing layer, the inner end of the inner push sleeve is fixedly connected to the inner sealing layer, the outer end is sealed to the outer sealing ring, and the outer end of the inner push sleeve extends out of the detection rotating ring.

3. The pipeline valve according to claim 2, characterized in that: A ratchet connection is provided between the detection rotating ring and the outer transmission ring, and the outer end of the L-shaped bent pipe bends in the same direction as the rotation direction of the ratchet.

4. The pipeline valve according to claim 3, characterized in that: The L-shaped bent pipe is made of a transparent material.

5. The pipeline valve according to claim 1, wherein: A plurality of the sealing layer openings are provided, and the plurality of sealing layer openings are evenly distributed on the inner sealing layer.

6. The pipeline valve according to claim 5, characterized in that: The sealing layer opening protrudes towards the outer sealing layer and does not contact the inner wall of the outer sealing layer.

7. The pipeline valve according to claim 6, wherein: The outer sealing layer, the side sealing openings and the inner sealing layer are all made of rubber material.

8. The pipeline valve according to claim 7, wherein: The inner wall of the inner sealing layer does not contact the outer wall of the main valve body.

9. The pipeline valve according to claim 7, wherein: Side sealing bars are arranged on the outer side of the side sealing openings.

10. The pipeline valve according to claim 7, characterized in that: The outer sealing layer is made of a transparent material, and the intervals between the plurality of hoop rings are of the same height.

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