An exhaust device for a concrete insulating roof

Abstract

The application belongs to the technical field of heating and ventilation pipeline, and particularly relates to a concrete heat-insulating roof exhaust equipment, which comprises a buried pipe body and an exhaust component. The exhaust component comprises an inner cavity box shell. Two sides of the bottom of the inner wall of the inner cavity box shell are symmetrically provided with knocking equipment. The middle part of the inner wall of the inner cavity box shell is slidably connected with a middle sliding frame. The device can keep the pressure balance of the roof layer and eliminate the high-pressure water vapor in the roof layer, so as to eliminate the safety hazards. The drainage equipment is fixed on the inner cavity box shell, but the internal structure thereof is improved and has a certain impact resistance. Compared with the fixed exhaust pipe body, the bending cylinder of the device has excellent impact resistance in the case of external severe weather, so it is difficult to appear the phenomenon that the pipe body is broken or bent, and the connecting opening part is blocked.

Description

Technical Field

[0001] This invention belongs to the field of HVAC duct technology, specifically an exhaust device for concrete insulated roofs. Background Technology

[0002] The roof ventilation system belongs to the field of roof moisture-proofing and ventilation technology. It is composed of a reinforced concrete structural layer, an insulation layer, a leveling layer, a waterproof layer, and a protective layer arranged in sequence to form the roof. The insulation layer has a series of ventilation channels running through it. Ventilation pipes extending out of the roof are connected to the ventilation channels. The outer wall of the extended ventilation pipes is tightly sealed with a waterproof layer and an additional waterproof layer.

[0003] Since the exhaust pipes are installed in the roof layer to remove moisture generated by thermal expansion and contraction, the pipes are usually staggered, and the vertical parts of the pipes are exposed to the outside. Therefore, in severe weather, the wind and impact forces generated by the external environment will act on the pipes, causing them to break or bend, resulting in blockage at the connection points. Therefore, improvements are needed. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical solution adopted by the present invention to solve its technical problem is: an exhaust device for a concrete insulated roof, including an embedded pipe and an exhaust component; The exhaust component includes an inner cavity shell. A striking device is symmetrically arranged on both sides of the bottom of the inner wall of the inner cavity shell. A central sliding frame is slidably connected to the middle of the inner wall of the inner cavity shell. Mesh sliding sleeves are symmetrically arranged on the left and right sides of the inner cavity of the central sliding frame. Limiting push rods are symmetrically arranged on the left and right sides of the top of the inner wall of the inner cavity shell. A detection device is arranged in the middle of the inner cavity of the central sliding frame. Drainage devices are symmetrically arranged on both sides of the bottom of the inner wall of the inner cavity shell. Limiting devices are symmetrically arranged on the left and right sides of the outer surface of the inner cavity shell. The inner cavity shell is fixed to the ground by the limiting devices on both sides, and the lower half of the inner cavity shell and the buried pipe are embedded and fixedly placed in the roof layer of the roof. The drainage device includes a bent tube, with a limiting outer disc fixedly connected to the bottom of the outer surface of the bent tube. A compression hose is fixedly connected to the bottom end of the bent tube. A fixing ring frame is slidably connected to the inner wall of the limiting outer disc. Limiting spring bands are evenly arranged on the inner wall of the fixing ring frame. A bidirectional pressure ring is fixedly connected to the inner cavity of the fixing ring frame. A bundle ring is fixedly connected to the lower part of the inner wall of the compression hose. Unblocking rods are evenly arranged on the lower surface of the bundle ring. The drainage device can guide water vapor inside the buried pipe to the outside of the roof layer, thereby reducing the pressure inside the roof layer.

[0005] Furthermore, the buried pipe body includes a longitudinal drainage pipe, with transverse drainage pipes inserted at both ends of the longitudinal drainage pipe. A segmented drainage pipe is fixedly connected to the top of the inner cavity of the longitudinal drainage pipe, and the top of the segmented drainage pipe is fixedly connected to the bottom of the inner cavity of the inner shell. The buried pipe body shown in the figure is a simplified representation and can be configured according to the actual pre-reserved groove inside the roof layer. It mainly guides and collects water vapor into the segmented drainage pipe through the transverse and longitudinal drainage pipes, and then uniformly inputs it into the inner shell. Symmetrical air inlets are opened on both sides of the inner cavity of the longitudinal drainage pipe. The bottom of the inner shell is fixedly connected to the ground. The top of the segmented drainage pipe communicates with the interior of the inner shell. The bottom end of the compressed hose is fixedly connected to the top of the mesh sliding sleeve. The side of the bidirectional pressure ring is fixedly connected to the top of the inner cavity of the inner cavity box, the end of the limiting spring belt away from the fixed ring frame is fixedly connected to the outer surface of the bent tube, the inner wall of the limiting outer disc is pressed against the outer surface of the fixed ring frame, and the side of the limiting outer disc away from the bundle ring is fixedly connected to the top of the inner cavity of the inner cavity box through the side sealing ring belt.

[0006] Furthermore, the limiting device includes a side shell, a force-bearing sliding shell is slidably connected to the outer surface of the side shell, an arc-shaped pressure plate is slidably connected to the side of the inner cavity of the side shell away from the inner cavity shell, a conduction device is provided at the bottom end of the arc-shaped pressure plate, a counterweight is fixedly connected to the side of the inner wall of the side shell near the inner cavity shell, and an anchoring rod is fixedly connected to the bottom end of the counterweight.

[0007] Furthermore, the transmission device includes a horizontal sliding plate, a pressure box fixedly connected to the middle of the upper surface of the horizontal sliding plate, an arc-shaped support plate slidably connected to the top of the inner cavity of the pressure box, an outer drum slidably connected to the upper surface of the arc-shaped support plate, and a spring support arm slidably connected to the inner wall of the outer drum via a roller. When any part of the upper surface of the stressed sliding shell is subjected to an impact force, the stressed sliding shell will slide towards the side shell, thereby pushing the outer drum through the arc-shaped pressure plate. Force analysis shows that the horizontal sliding plate balances the horizontal component of the force by sliding, while the vertical component of the force can be balanced by pressing down the arc-shaped support plate, thus triggering the pressure box. Both sides of the outer surface of the horizontal sliding plate are slidably connected to the bottom of the inner cavity of the side shell via insertion grooves. The outer surface of the outer drum and the bottom end of the arc-shaped pressure plate press against each other. Both sides of the inner wall of the stressed sliding shell are fixedly connected to both sides of the outer surface of the side shell via spring sealing strips.

[0008] Furthermore, the striking device includes a rotating impact plate, on the side of the rotating impact plate near the inner wall of the inner cavity shell, a side protruding vertical plate is provided, the top of the side protruding vertical plate is fixedly connected to one side of the lower surface of the middle sliding frame, the bottom end of the rotating impact plate is rotatably connected to the bottom of the inner wall of the inner cavity shell, and the outer surface of the rotating impact plate away from the side protruding vertical plate is fixedly connected to the inner wall of the inner cavity shell by an arc spring.

[0009] Furthermore, the detection device includes a detector, and a magnetic coil rod is fixedly connected to the bottom end of the detector's output shaft. The magnetic coil rod has two structures: an outer rod shell and an inner rod core. An embedded sliding plate is slidably connected to the middle of the inner cavity of the magnetic coil rod through a vertical groove. Sensing ends are evenly arranged in the middle of the inner cavity of the embedded sliding plate. The sensing ends can determine the actual height of the embedded sliding plate based on the different magnetic forces of the detected magnetic coil rod core. The inner wall of the embedded sliding plate is fixedly connected to the inner cavity of the center sliding frame. Both ends of the magnetic coil rod are fixedly connected to the inner wall of the inner cavity shell.

[0010] The beneficial effects of this invention are as follows: 1. This device uses a bent pipe exposed on the outside of the roof layer to divert water from the roof layer to the external environment, maintaining pressure balance inside and outside the roof layer and eliminating high-pressure water vapor inside the roof layer, thus eliminating safety hazards. Although the diversion device is fixed on the inner shell, its internal structure has been improved to have a certain impact resistance. Compared with fixed discharge pipes, the bent pipe of this device has excellent impact resistance in the event of severe weather, so it is less likely that the pipe will break or bend, causing blockage at the connection point.

[0011] 2. When the bent tube is subjected to impact in harsh environments, it can be buffered by the internal limiting spring band and the side sealing band of the limiting outer disc. Furthermore, the bent tube is connected to the internal components of the inner cavity shell through the compression hose at the bottom end. This ensures good water vapor transportation while preventing the bent tube from transmitting the force in the opposite direction and damaging the internal components of the inner cavity shell.

[0012] 3. When the water vapor content is too high, the water sprayed from the bent tube will fall onto the upper surface of the stressed sliding shell. The outer drum will exert downward pressure on the arc-shaped support plate, thereby pressing the pressurizing box. This will help determine whether the water discharge flow rate is normal. Furthermore, the distance between the stressed sliding shell and the side shell is limited, so there will be no problem of the pressurizing box being over-pressed, which could damage the internal structure.

[0013] 4. The middle sliding frame will slide upward due to the propulsion of air pressure. After the water vapor is discharged, it will slide down to the bottom of the inner wall of the inner cavity shell under its own gravity. Therefore, during this process, the rotating impact plate will continuously hit the side protruding vertical plate, generating an impact force on the side of the inner wall of the inner cavity shell. This will cause the inner cavity shell and the bent tube to vibrate continuously, thereby shaking off the dust accumulated on the outer surface and reducing the impact of curing. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the drainage device of the present invention; Figure 4 This is a schematic diagram of the structure of the fixing ring frame of the present invention; Figure 5 This is a cross-sectional view of the limiting device of the present invention; Figure 6 This is a schematic diagram of the structure of the conductive device of the present invention; Figure 7 This is a cross-sectional view of the striking device of the present invention; Figure 8 This is a cross-sectional view of the detection device of the present invention.

[0015] In the diagram: 1. Buried pipe body; 11. Longitudinal drainage pipe; 12. Transverse drainage pipe; 13. Segmented unblocking pipe; 2. Exhaust component; 21. Inner cavity shell; 22. Mid-position sliding frame; 23. Mesh sliding sleeve; 24. Limiting push rod; 3. Drainage device; 31. Bending tube; 32. Limiting outer disc; 33. Compression hose; 34. Bundling ring; 35. Unblocking insert; 36. Limiting spring band; 37. Fixing ring frame; 38. Bidirectional pressure ring; 4. Limiting device; 41. Side shell ; 42. Force-bearing sliding shell; 43. Spring sealing strip; 44. Arc-shaped pressure plate; 45. Conducting device; 46. Counterweight block; 47. Anchoring rod; 451. Horizontal sliding plate; 452. Pressure box; 453. Arc-shaped support plate; 454. Spring support arm; 455. Outer drum; 5. Detection device; 51. Detector; 52. Magnetic coil rod; 53. Embedded sliding plate; 54. Induction end; 6. Striking device; 61. Rotating impact plate; 62. Side-protruding vertical plate; 63. Arc-shaped spring. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0017] Example 1, please refer to Figures 1-4 The present invention provides a technical solution: an exhaust device for a concrete insulated roof, comprising an embedded pipe body 1 and an exhaust component 2; The exhaust component 2 includes an inner cavity shell 21. A striking device 6 is symmetrically arranged on both sides of the bottom of the inner wall of the inner cavity shell 21. A middle sliding frame 22 is slidably connected to the middle of the inner wall of the inner cavity shell 21. A mesh sliding sleeve 23 is symmetrically arranged on the left and right sides of the inner cavity of the middle sliding frame 22. A limit push rod 24 is symmetrically arranged on the left and right sides of the top of the inner wall of the inner cavity shell 21. A detection device 5 is arranged in the middle of the inner cavity of the middle sliding frame 22. A drainage device 3 is symmetrically arranged on both sides of the bottom of the inner wall of the inner cavity shell 21. A limit device 4 is symmetrically arranged on both sides of the outer surface of the inner cavity shell 21. The inner cavity shell 21 is fixed to the ground by the limit devices 4 on both sides. The lower half of the inner cavity shell 21 and the buried pipe 1 are buried in the roof layer of the roof and fixedly placed. The drainage device 3 includes a bent tube 31. A limiting outer plate 32 is fixedly connected to the bottom of the outer surface of the bent tube 31. A compression hose 33 is fixedly connected to the bottom end of the bent tube 31. A fixing ring frame 37 is slidably connected to the inner wall of the limiting outer plate 32. A limiting spring band 36 is evenly arranged on the inner wall of the fixing ring frame 37. A bidirectional pressure ring 38 is fixedly connected to the inner cavity of the fixing ring frame 37. A bundle ring 34 is fixedly connected to the lower part of the inner wall of the compression hose 33. A clearing rod 35 is evenly arranged on the lower surface of the bundle ring 34. The drainage device 3 can guide the water vapor inside the buried pipe 1 to the outside of the roof layer to reduce the pressure inside the roof layer.

[0018] The buried pipe body 1 includes a longitudinal drainage pipe 11, with transverse drainage pipes 12 inserted at both ends of the longitudinal drainage pipe 11. A segmented drainage pipe 13 is fixedly connected to the top of the inner cavity of the longitudinal drainage pipe 11, and the top of the segmented drainage pipe 13 is fixedly connected to the bottom of the inner cavity of the inner shell 21. The buried pipe body 1 in this figure is a simplified representation and can be set according to the actual reserved groove inside the roof layer. It mainly guides water vapor through the transverse drainage pipe 12 and the longitudinal drainage pipe 11 and collects it into the segmented drainage pipe 13, and then inputs it into the inner shell 21. Air inlets are symmetrically opened on both sides of the inner cavity of the longitudinal drainage pipe 11. The bottom of the inner shell 21 is fixedly connected to the ground. The top of the segmented drainage pipe 13 communicates with the inside of the inner shell 21. The bottom end of the compressed hose 33 is fixedly connected to the top of the mesh sliding sleeve 23. The side of the bidirectional pressure ring 38 is fixedly connected to the top of the inner cavity of the inner cavity box 21. The end of the limiting spring band 36 away from the fixing ring frame 37 is fixedly connected to the outer surface of the bent tube 31. The inner wall of the limiting outer disc 32 is pressed against the outer surface of the fixing ring frame 37. The side of the limiting outer disc 32 away from the bundle ring 34 is fixedly connected to the top of the inner cavity of the inner cavity box 21 through the side sealing ring band.

[0019] When installing the device in the roof layer, first set the longitudinal drainage pipe 11 and the transverse drainage pipe 12 inside the roof layer according to the reserved groove, and then... Figure 1 The roof is constructed directly in the state shown. At this time, the lower half of the inner cavity shell 21 is also buried in the roof layer and fixed by the limiting devices 4 on both sides. That is, the anchoring rod 47 at the bottom of the counterweight 46 is fixed in the completed roof layer for anchoring, thus completing the installation of the device.

[0020] After the roof layer undergoes thermal expansion and contraction, the water vapor inside the roof layer will be guided to the segmented drainage pipe 13 through the horizontal drainage pipe 12 and the vertical drainage pipe 11, and then accumulate inside the inner cavity shell 21. Subsequently, the water vapor and air pressure flow into the drainage device 3 through the only opening of the middle sliding frame 22, namely the mesh sliding sleeve 23.

[0021] When water vapor passes through the mesh sleeve 23, it also applies upward pressure to the middle sliding frame 22, compressing the hose 33. Then, the water vapor enters the interior of the hose 33 and is discharged through the bundle ring 34 and the bent tube 31. When the mesh sleeve 23 of the middle sliding frame 22 becomes blocked due to the water vapor, the pressure on the middle sliding frame 22 will increase. At this time, the middle sliding frame 22 rises to a higher height, causing the bottom end of the unblocking rod 35 to connect with the mesh of the mesh sleeve 23. The water vapor then flows into the bent tube 31 through the gap between the unblocking rod 35 and the mesh. Under the physical impact of the higher pressure water vapor and the unblocking rod 35, the mesh of the mesh sleeve 23 is quickly unblocked, reducing the probability of blockage.

[0022] When an external force impacts the tube body of the bent tube 31, the bent tube 31 will slide relative to the inner cavity shell 21. In the vertical direction, the limiting outer disc 32 will compress the side of the bidirectional pressure ring 38, causing the limiting outer disc 32 to move to a certain extent. In the horizontal direction, the bent tube 31 can slide freely relative to the inner cavity shell 21. At this time, the limiting spring band 36 is compressed, providing reserved space for the movement of the bent tube 31. During the above-mentioned movement of the bent tube 31, the limiting outer disc 32 always prevents internal moisture leakage through the side seal, so moisture will only be diverted to the outside through the bent tube 31.

[0023] Example 2, please refer to Figures 1-8 The present invention provides a technical solution: Based on the first embodiment, the limiting device 4 includes a side shell 41, a force-bearing sliding shell 42 slidably connected to the outer surface of the side shell 41, an arc-shaped pressure plate 44 slidably connected to the side of the inner cavity of the side shell 41 away from the inner cavity shell 21, a conduction device 45 is provided at the bottom end of the arc-shaped pressure plate 44, and a counterweight 46 is fixedly connected to the side of the inner wall of the side shell 41 close to the inner cavity shell 21, and an anchoring rod 47 is fixedly connected to the bottom end of the counterweight 46.

[0024] The transmission device 45 includes a horizontal sliding plate 451. A pressure box 452 is fixedly connected to the middle of the upper surface of the horizontal sliding plate 451. An arc-shaped support plate 453 is slidably connected to the top of the inner cavity of the pressure box 452. An outer drum 455 is slidably connected to the upper surface of the arc-shaped support plate 453. A spring support arm 454 is slidably connected to the inner wall of the outer drum 455 through a roller. When any part of the upper surface of the force-bearing sliding shell 42 is subjected to an impact force, the force-bearing sliding shell 42 will slide towards the side shell 41, thereby pushing the outer drum 455 through the arc-shaped pressure plate 44. According to the force analysis, the horizontal sliding plate 451 balances the component force on the horizontal plane by sliding, while the component force on the vertical plane can be balanced by pressing down the arc-shaped support plate 453, thereby triggering the pressure box 452. Both sides of the outer surface of the horizontal sliding plate 451 are slidably connected to the bottom of the inner cavity of the side shell 41 through the insertion groove. The outer surface of the outer roller 455 is pressed against the bottom of the arc-shaped pressure plate 44. Both sides of the inner wall of the force-bearing sliding shell 42 are fixedly connected to both sides of the outer surface of the side shell 41 through the spring sealing strip 43.

[0025] The striking device 6 includes a rotating impact plate 61. A side protruding vertical plate 62 is provided on the side of the rotating impact plate 61 near the inner wall of the inner cavity shell 21. The top of the side protruding vertical plate 62 is fixedly connected to one side of the lower surface of the middle sliding frame 22. The bottom end of the rotating impact plate 61 is rotatably connected to the bottom of the inner wall of the inner cavity shell 21. The outer surface of the rotating impact plate 61 away from the side protruding vertical plate 62 is fixedly connected to the inner wall of the inner cavity shell 21 through an arc spring 63.

[0026] The detection device 5 includes a detector 51. A magnetic coil rod 52 is fixedly connected to the bottom end of the output shaft of the detector 51. The magnetic coil rod 52 has two structures: an outer rod shell and an inner rod core. An embedded slide plate 53 is slidably connected to the middle of the inner cavity of the magnetic coil rod 52 through a vertical groove. Sensing ends 54 are evenly arranged in the middle of the inner cavity of the embedded slide plate 53. The sensing ends 54 can determine the actual height of the embedded slide plate 53 based on the different magnetic forces of the rod core of the detected magnetic coil rod 52. The inner wall of the embedded slide plate 53 is fixedly connected to the inner cavity of the middle sliding frame 22. Both ends of the magnetic coil rod 52 are fixedly connected to the inner wall of the inner cavity shell 21.

[0027] When the water vapor content is too high, the water sprayed from the bent tube 31 will fall onto the upper surface of the force-bearing sliding shell 42. Then, the force-bearing sliding shell 42 will squeeze the arc-shaped pressure plate 44. According to the force analysis, the horizontal sliding plate 451 slides along the bottom of the inner cavity of the side shell 41, while the outer drum 455 exerts a downward squeezing force on the arc-shaped support plate 453, thereby pressing the pressurizing box 452, thus determining whether the water discharge flow rate is normal.

[0028] The middle sliding frame 22 will slide upward due to the propulsion of air pressure. After the water vapor is discharged, it will slide down to the bottom of the inner wall of the inner cavity shell 21 under its own gravity. Therefore, during this process, the middle sliding frame 22 will pull the rotating impact plate 61 by pulling the side protruding vertical plate 62. Then, the rotating impact plate 61 will be reset under the elastic force of the arc spring 63 on the other side, so that the rotating impact plate 61 will continuously hit the side protruding vertical plate 62, generating an impact force on the side of the inner wall of the inner cavity shell 21.

[0029] When the middle sliding frame 22 slides upward, it will pull the embedded sliding plate 53 to slide upward. Then, the magnetic force of the core of the magnetic coil rod 52 is monitored by the sensing end 54 set on its inner wall, so as to accurately determine the real-time height of the middle sliding frame 22. If the middle sliding frame 22 is always at the high point, it means that the middle sliding frame 22 is stuck or water vapor is continuously discharged for a long time. After the above abnormal situation occurs, the homeowner can be reminded to eliminate the hidden danger in time.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A ventilation device for a concrete insulated roof, comprising an embedded pipe (1) and a ventilation component (2), characterized in that: The exhaust component (2) includes an inner cavity shell (21). A striking device (6) is symmetrically arranged on both sides of the bottom of the inner wall of the inner cavity shell (21). A middle sliding frame (22) is slidably connected to the middle of the inner wall of the inner cavity shell (21). A mesh sliding sleeve (23) is symmetrically arranged on the left and right sides of the inner cavity of the middle sliding frame (22). A limit push rod (24) is symmetrically arranged on the left and right sides of the top of the inner wall of the inner cavity shell (21). A detection device (5) is arranged in the middle of the inner cavity of the middle sliding frame (22). A drainage device (3) is symmetrically arranged on both sides of the bottom of the inner wall of the inner cavity shell (21). A limit device (4) is symmetrically arranged on the left and right sides of the outer surface of the inner cavity shell (21). The drainage device (3) includes a bent tube (31), a limiting outer disc (32) is fixedly connected to the bottom of the outer surface of the bent tube (31), a compression hose (33) is fixedly connected to the bottom end of the bent tube (31), a fixing ring frame (37) is slidably connected to the inner wall of the limiting outer disc (32), a limiting spring band (36) is evenly arranged on the inner wall of the fixing ring frame (37), a bidirectional pressure ring (38) is fixedly connected to the inner cavity of the fixing ring frame (37), a bundle ring (34) is fixedly connected to the lower part of the inner wall of the compression hose (33), and a clearing rod (35) is evenly arranged on the lower surface of the bundle ring (34). The buried tube body (1) includes a longitudinal drainage tube (11), and transverse drainage tubes (12) are inserted at both ends of the longitudinal drainage tube (11). A segmented dredging tube (13) is fixedly connected to the top of the inner cavity of the longitudinal drainage tube (11), and the top end of the segmented dredging tube (13) is fixedly connected to the bottom of the inner cavity of the inner cavity shell (21).

2. The venting apparatus for a concrete insulating roof according to claim 1, wherein: The longitudinal drainage pipe (11) has symmetrical air inlets on both sides of its inner cavity. The bottom of the inner cavity shell (21) is fixedly connected to the ground. The top of the segmented drainage pipe (13) is connected to the inside of the inner cavity shell (21). The bottom of the compression hose (33) is fixedly connected to the top of the mesh sliding sleeve (23).

3. The venting apparatus for a concrete insulating roof according to claim 2, wherein: The side of the bidirectional pressure ring (38) is fixedly connected to the top of the inner cavity of the inner cavity box (21). The end of the limiting spring band (36) away from the fixed ring frame (37) is fixedly connected to the outer surface of the bent tube (31). The inner wall of the limiting outer disc (32) is pressed against the outer surface of the fixed ring frame (37). The side of the limiting outer disc (32) away from the bundle ring (34) is fixedly connected to the top of the inner cavity of the inner cavity box (21) through the side sealing ring band.

4. The exhaust system for a concrete insulated roof according to claim 1, characterized in that: The limiting device (4) includes a side shell (41), a force-bearing sliding shell (42) is slidably connected to the outer surface of the side shell (41), an arc-shaped pressure plate (44) is slidably connected to the side of the inner cavity of the side shell (41) away from the inner cavity shell (21), a conduction device (45) is provided at the bottom end of the arc-shaped pressure plate (44), a counterweight (46) is fixedly connected to the side of the inner wall of the side shell (41) close to the inner cavity shell (21), and an anchoring rod (47) is fixedly connected to the bottom end of the counterweight (46).

5. The exhaust system for a concrete insulated roof according to claim 4, characterized in that: The transmission device (45) includes a horizontal slide plate (451), a pressure box (452) is fixedly connected to the middle of the upper surface of the horizontal slide plate (451), an arc-shaped support plate (453) is slidably connected to the top of the inner cavity of the pressure box (452), an outer drum (455) is slidably connected to the upper surface of the arc-shaped support plate (453), and a spring support arm (454) is slidably connected to the inner wall of the outer drum (455) through a roller.

6. The exhaust system for a concrete insulated roof according to claim 5, characterized in that: Both sides of the outer surface of the horizontal sliding plate (451) are slidably connected to the bottom of the inner cavity of the side shell (41) through the insertion sliding groove. The outer surface of the outer roller (455) is pressed against the bottom of the arc-shaped pressure plate (44). Both sides of the inner wall of the force-bearing sliding shell (42) are fixedly connected to both sides of the outer surface of the side shell (41) through the spring sealing strip (43).

7. The exhaust system for a concrete insulated roof according to claim 1, characterized in that: The striking device (6) includes a rotating impact plate (61). A side protruding vertical plate (62) is provided on the side of the rotating impact plate (61) near the inner wall of the inner cavity shell (21). The top of the side protruding vertical plate (62) is fixedly connected to one side of the lower surface of the middle sliding frame (22). The bottom end of the rotating impact plate (61) is rotatably connected to the bottom of the inner wall of the inner cavity shell (21). The side of the outer surface of the rotating impact plate (61) away from the side protruding vertical plate (62) is fixedly connected to the inner wall of the inner cavity shell (21) by an arc spring (63).

8. The exhaust system for a concrete insulated roof according to claim 1, characterized in that: The detection device (5) includes a detector (51), and a magnetic coil rod (52) is fixedly connected to the bottom end of the output shaft of the detector (51). An embedded slide plate (53) is slidably connected to the middle part of the inner cavity of the magnetic coil rod (52) through a vertical groove. Sensing ends (54) are evenly arranged in the middle part of the inner cavity of the embedded slide plate (53). The inner wall of the embedded slide plate (53) is fixedly connected to the inner cavity of the middle sliding frame (22). Both ends of the magnetic coil rod (52) are fixedly connected to the inner wall of the inner cavity shell (21).

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