Fireproof and sound insulation type integral ventilation sleeve

Abstract

The invention provides a fireproof and sound insulation type integral ventilation sleeve, and relates to the technical field of ventilation pipes, the fireproof and sound insulation type integral ventilation sleeve comprises a ventilation pipe main body and a flange structure, the ventilation pipe main body comprises a core pipe and a ventilation pipe outer pipe, and rib plates are formed at the four corners of the outer wall of the core pipe and the four corners of the inner wall of the ventilation pipe outer pipe; four rib plates are arranged in the ventilation pipe outer pipe, four storage cavities are formed between the ventilation pipe outer pipe and the core pipe, rock wool and silencing wool are arranged in the four storage cavities, positioning notches are formed in the surfaces of the two sides of each rib plate, and a reinforcing plate is in pin joint between every two positioning notches between every two adjacent corners of the core pipe; according to the technical scheme, the four pieces of sound attenuation cotton located on the inner sides of the four pieces of rock wool are arranged in the containing cavity between the ventilation pipe outer pipe and the core pipe, fire prevention is achieved through the four pieces of rock wool, meanwhile, noise transmission is hindered through the four pieces of sound attenuation cotton and sound attenuation strip grooves in a reinforcing plate, and noise spread in a solid is weakened through sound attenuation holes in rib plates; the fireproof performance and the sound insulation performance can be improved through a simple structure.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation pipes, and specifically to a fireproof and sound-insulating integral ventilation sleeve. Background Art

[0002] A ventilation pipe is a hollow pipe used for ventilation, mostly circular or square in shape. The structure of a ventilation pipe mainly includes an air inlet connection pipe, an air outlet connection pipe, and an elbow.

[0003] Ventilation pipes can be classified into PE film ventilation pipes, galvanized sheet (galvanized iron) air ducts, stainless steel ventilation pipes, fiberglass reinforced plastic ventilation pipes, plastic ventilation pipes, composite material ventilation pipes, color steel sandwich insulation board ventilation pipes, and coated fabric ventilation pipes, etc. according to their materials. Ventilation pipes can be classified into purification system supply and return air ducts, central air-conditioning ventilation pipes, industrial supply and exhaust ventilation pipes, environmental protection system suction and exhaust air ducts, mine gas drainage pipes, mine coated fabric air ducts, and fire-fighting flue ventilation pipes, etc. according to their uses. Ventilation pipes can be classified into circular, rectangular, spiral, corrugated, etc. according to their shapes.

[0004] A patent document with the publication number CN219976695U, a fireproof and sound-insulating integral ventilation sleeve, is provided with a ventilation pipe having a fireproof structure. Through the settings of an installation frame, a first tension spring, an L-shaped baffle, a first connecting rope, and a triggering structure, when a fire occurs inside the pipe body, the generated temperature is transmitted to the glass support pipe. Appropriately, the alcohol and ether filled in the glass support pipe expand when heated, causing the glass support pipe to break from the middle and detach from the support of the sealing plate, so that the sealing plate detaches from the fitting seal with the water spray pipe at the bottom of the water tank. At this time, the second tension spring initially in a stretched state is released from the limit, pulling the knife plate to quickly move downward close to the knife rest plate, cutting the first connecting rope between the two, so that the first tension spring initially in a stretched state is released from the stretch, pulling the L-shaped baffle to rotate and close with the installation frame, thereby blocking both ends of the pipe body, preventing the air flow inside the pipe body, assisting the combustion of the fire, and avoiding the situation where the fire spreads and enlarges.

[0005] However, in the process of implementing the above technical solution, it is found that the above technical solution has the following technical problems:

[0006] This fireproof and sound-insulating integral ventilation sleeve can achieve a good fireproof effect by cutting off the internal passage inside it to block the air flow. However, in the actual application process, since the air duct installed in the building wall contacts the wall, and the sound travels fast in solids, it is difficult to achieve a good sound-insulating effect. Moreover, its internal structure is relatively complex, and fire situations do not occur frequently, so it is easy for the functions of components to fail or be damaged over time, making it difficult to meet the fireproof effect. Summary of the Invention

[0007] In order to overcome the deficiencies of existing fireproof and sound-insulating integral ventilation sleeves, during actual application, since the air ducts installed in the building wall are in contact with the wall, it is difficult to achieve a good sound-insulating effect, and its internal structure is relatively complex. Fire situations do not occur frequently, and it is easy for the functions of components to fail or be damaged over time, making it difficult to meet the fireproof effect. The embodiment of the present application provides a fireproof and sound-insulating integral ventilation sleeve. By arranging four sound-absorbing cotton inside the accommodation cavity between the outer pipe and the core pipe of the ventilation pipe, in case of a fire, good fireproof effect can be achieved with the help of the four rock wool. At the same time, when air flows inside the core pipe to generate noise, or when the building wall is impacted or vibrated, etc., the four sound-absorbing cotton and the sound-absorbing strip grooves on the reinforcement plate can be used to hinder the propagation of noise in the air, and the sound-absorbing holes inside the rib plate can be used to weaken the noise propagated in the solid. The overall structure is relatively simple, and both the fireproof performance and the sound-insulating performance can be guaranteed.

[0008] The technical solution adopted by the embodiment of the present application to solve its technical problems is:

[0009] A fireproof and sound-insulating integral ventilation sleeve, including a ventilation pipe main body and two flange structures;

[0010] The ventilation pipe main body includes a core pipe, and a ventilation pipe outer pipe is arranged on the outer side of the core pipe. Rib plates are integrally formed at the four corners of the outer wall of the core pipe and the four corners of the inner wall of the ventilation pipe outer pipe, and four accommodation cavities are formed between the ventilation pipe outer pipe and the core pipe. Rock wool and sound-absorbing cotton are arranged inside the four accommodation cavities;

[0011] Among them, the four rock wool and the four sound-absorbing cotton surround the core pipe. The four rock wool are located on the outer sides of the four sound-absorbing cotton. The ventilation pipe outer pipe is buried inside the building wall, and the two flange structures are respectively arranged at both ends of the ventilation pipe main body to encapsulate the four rock wool and the four sound-absorbing cotton between the inner wall of the ventilation pipe outer pipe and the outer wall of the core pipe.

[0012] In a possible implementation manner, positioning slot openings are opened on both side surfaces of the four rib plates, and a reinforcement plate is pinned between the two positioning slot openings between two adjacent corners of the core pipe; the rock wool is located between the inner wall of the ventilation pipe outer pipe and the reinforcement plate, and the sound-absorbing cotton is located between the outer wall of the core pipe and the reinforcement plate.

[0013] In a possible implementation manner, a plurality of sound-absorbing strip grooves are processed on both side surfaces of the reinforcement plate. The cross-sections of the plurality of sound-absorbing strip grooves are all isosceles trapezoids, and the plurality of sound-absorbing strip grooves on both side surfaces of the reinforcement plate are arranged in a staggered manner.

[0014] In a possible implementation manner, a plurality of sound-absorbing holes are processed inside the four rib plates, and the plurality of sound-absorbing holes communicate the two ends of the rib plates.

[0015] In a possible implementation, the flange structure includes a transition frame. One end of the transition frame is integrally formed with a flange plate A, and the other end of the transition frame is integrally formed with a buckle cover. Both ends of the four rock wools and the four sound-absorbing cottons extend from both ends of the outer pipe of the ventilation pipe. The buckle cover is buckled to one end of the four rock wools and the four sound-absorbing cottons, and the inner wall of the transition frame is attached to the outer wall of one end of the core pipe.

[0016] In a possible implementation, a support frame is processed at the inner wall of the buckle cover. The support frame extends into the gap between the four rock wools and the four sound-absorbing cottons to position one end of the four rock wools and the four sound-absorbing cottons.

[0017] In a possible implementation, receiving notches are processed at the top and bottom of both ends of the core pipe. Elastic sheets are assembled and connected to the inner wall of the bottom of the receiving notches. Limiting notches are opened at the inner walls of the top and bottom of the transition frame. When the transition frame is sleeved on the outside of one end of the core pipe, first deform the elastic sheet and receive it into the inside of the receiving notch, and when the elastic sheet is located inside the limiting notch, make one side of the top of the elastic sheet abut against the inner wall of one side of the limiting notch.

[0018] In a possible implementation, loading and unloading round holes are opened at the top of both ends of the elastic sheet. Bolts pass through the inside of the loading and unloading round holes and pass through the bottom of both ends of the elastic sheet to be threadedly connected to the core pipe, and the elastic sheet is assembled to the inner wall of the bottom of the receiving notch.

[0019] In a possible implementation, disassembly notches are opened at the outer walls of the top and bottom of the transition frame, and the inside of the disassembly notch is communicated with the inside of the limiting notch.

[0020] In a possible implementation, a rectangular groove A is processed at the inner wall of the side of the flange plate A away from the transition frame. Rectangular grooves B are processed at the outer walls of both ends of the core pipe. Elastic sheets are filled between the rectangular groove A and the rectangular groove B. A flange plate B is arranged on one side of the flange plate A. An external ventilation pipe is integrally formed on the surface of one side of the flange plate B. After the flange plate B is assembled and fixed to the flange plate A, the sealing ring is pressed into the inside of the rectangular groove B and the rectangular groove A to eliminate the gap between the flange plate B and the main body of the ventilation pipe, and support the flow of air inside the core pipe and the external ventilation pipe.

[0021] The beneficial effects of this application are:

[0022] First, in this solution, four sound-absorbing cotton are arranged inside the storage cavity between the outer pipe and the core pipe of the ventilation pipe, and four rock wool are arranged inside the four sound-absorbing cotton. In case of a fire, the four rock wool can play a good fire prevention effect. At the same time, when air flows inside the core pipe to generate noise, or when the building wall is impacted or vibrated, etc., the four sound-absorbing cotton and the sound-absorbing strip grooves on the reinforcement plate can be used to block the propagation of noise in the air, and the sound-absorbing holes inside the rib plate can be used to weaken the noise propagating in the solid. The overall structure is relatively simple, and both the fire prevention performance and the sound insulation performance can be guaranteed;

[0023] Second, in this solution, when the transition frame is sleeved on the outside of one end of the core pipe, first make the elastic piece deform and retract into the inside of the storage notch, and when the elastic piece is located inside the limit notch, make one side of the top of the elastic piece abut against the inner wall of one side of the limit notch, so that the flange structure can be fixed to one end of the ventilation pipe main body, thereby encapsulating the four rock wool and the four sound-absorbing cotton between the outer pipe and the core pipe of the ventilation pipe.

[0024] Third, in this solution, by processing a support frame inside the buckle cover on the flange structure, when the buckle cover is buckled on the outside of one end of the four rock wool and the four sound-absorbing cotton, the support frame can extend into the gap between the four rock wool and the four sound-absorbing cotton to position one end of the four rock wool and the four sound-absorbing cotton, so that both ends of the rock wool and the sound-absorbing cotton are in a stable state;

[0025] Fourth, in this solution, by filling the sealing ring between the rectangular groove A on the inner wall of the flange plate A and the rectangular groove B on the outer wall of one end of the core pipe, after the flange plate A and the flange plate B at one end of the external air duct are assembled and fixed, the sealing ring can expand to eliminate the gap between the flange plate B and the ventilation pipe main body, avoiding air leakage during the flow of air inside the core pipe and the external air duct, and improving the sealing effect after the connection between the external air duct and the ventilation pipe main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic diagram of the overall structure of a fireproof and sound-insulating integral ventilation sleeve of the present invention;

[0027] Figure 2 FIG. is a schematic diagram of the installation position of a fireproof and sound-insulating integral ventilation sleeve of the present invention;

[0028] Figure 3 FIG. is an exploded view of a fireproof and sound-insulating integral ventilation sleeve of the present invention;

[0029] Figure 4 FIG. is a cross-sectional view of the ventilation pipe main body of a fireproof and sound-insulating integral ventilation sleeve of the present invention;

[0030] Figure 5 FIG. is a schematic diagram of the structure of the flange structure of a fireproof and sound-insulating integral ventilation sleeve of the present invention;

[0031] Figure 6 Side view of the outer pipe of the ventilation pipe of a fireproof and sound-insulating integral ventilation sleeve according to the present invention;

[0032] Figure 7 Cross-sectional view of a flange structure of a fireproof and sound-insulating integral ventilation sleeve according to the present invention;

[0033] Figure 8 Schematic diagram of the connection structure between the ventilation pipe main body and the external ventilation pipe of a fireproof and sound-insulating integral ventilation sleeve according to the present invention.

[0034] Reference numerals:

[0035] 1. Ventilation pipe main body; 101. Outer pipe of the ventilation pipe; 102. Core pipe; 103. Rib plate;

[0036] 2. Flange structure; 201. Cover; 202. Flange plate A; 203. Transition frame; 204. Support frame;

[0037] 3. Sealing ring; 4. Building wall; 5. Reinforcement plate; 6. Rock wool; 7. Sound-absorbing cotton; 8. Rectangular groove A; 9. Demounting notch; 10. Limiting notch; 11. Rectangular groove B; 12. Storage notch; 13. Elastic piece; 14. Loading and unloading round hole; 15. Storage cavity; 16. Sound-absorbing hole; 17. Positioning notch; 18. Sound-absorbing strip groove; 19. External ventilation pipe; 20. Flange plate B. Detailed implementation manners

[0038] The technical solutions in the embodiments of the present application are to solve the problems in the above-mentioned background technology, and the general idea is as follows:

[0039] Embodiment 1:

[0040] This embodiment introduces the specific structure of a fireproof and sound-insulating integral ventilation sleeve. Specifically, refer to Figures 1 - 7 As shown, it includes a ventilation pipe main body 1 and two flange structures 2. The ventilation pipe main body 1 includes a core pipe 102. An outer pipe 101 of the ventilation pipe is arranged on the outer side of the core pipe 102. Rib plates 103 are integrally formed at the four corners of the outer wall of the core pipe 102 and the four corners of the inner wall of the outer pipe 101 of the ventilation pipe, and four storage cavities 15 are formed between the outer pipe 101 of the ventilation pipe and the core pipe 102. Rock wool 6 and sound-absorbing cotton 7 are arranged inside the four storage cavities 15;

[0041] Among them, by respectively arranging two flange structures 2 at both ends of the ventilation pipe main body 1, four rock wools 6 and four sound-absorbing cottons 7 are encapsulated between the inner wall of the outer pipe 101 of the ventilation pipe and the outer wall of the core pipe 102. It is possible to surround the core pipe 102 with four rock wools 6 and four sound-absorbing cottons 7, and the four rock wools 6 are located outside the four sound-absorbing cottons 7. When the outer pipe 101 of the ventilation pipe is buried inside the building wall 4, the four rock wools 6 can be used for protection around the core pipe 102. When a fire occurs indoors or outdoors of the building, the surface of the outer pipe 101 of the ventilation pipe will not be affected by high temperature, resulting in deformation of the internal core pipe 102, achieving a good fire prevention effect;

[0042] At the same time, by making the four sound-absorbing cottons 7 located outside the four rock wools 6, the sound-absorbing function of the rock wools 6 will not be affected. When air flows inside the core pipe 102 to generate noise, or noise propagates inside the building wall 4, it will not pass between the outer pipe 101 of the ventilation pipe and the core pipe 102;

[0043] Secondly, in order to improve the structural strength between the outer pipe 101 of the ventilation pipe and the core pipe 102, as Figure 6 shown, positioning notches 17 are provided on both side surfaces of the four rib plates 103, and a reinforcing plate 5 is pin-connected between the two positioning notches 17 between two adjacent corners of the core pipe 102. By making the rock wool 6 located between the inner wall of the outer pipe 101 of the ventilation pipe and the reinforcing plate 5, and the sound-absorbing cotton 7 located between the outer wall of the core pipe 102 and the reinforcing plate 5, it is possible to prevent the rock wool 6 and the sound-absorbing cotton 7 from moving inside the storage cavity 15 and fix the rock wool 6 and the sound-absorbing cotton 7 inside the storage cavity 15;

[0044] In some examples, a plurality of sound-absorbing strip grooves 18 are processed on both side surfaces of the reinforcing plate 5, and the cross-sections of the plurality of sound-absorbing strip grooves 18 are all isosceles trapezoids;

[0045] Among them, by arranging the plurality of sound-absorbing strip grooves 18 on both side surfaces of the reinforcing plate 5 in a staggered manner, the reinforcing plate 5 can be made as thin as possible, and the noise reduction effect can be achieved by means of the sound-absorbing strip grooves 18;

[0046] Secondly, by processing a plurality of sound-absorbing holes 16 inside the four rib plates 103 and connecting the two ends of the rib plates 103 through the plurality of sound-absorbing holes 16, when noise is conducted inside the outer pipe 101 and the core pipe 102 of the ventilation pipe, the sound-absorbing holes 16 inside the rib plates 103 can be used to reduce the noise propagation inside the solid.

[0047] The above design encapsulates four sound-absorbing cotton 7s and four rock wools 6 between the outer ventilation pipe 101 and the core pipe 102 through two flange structures 2 into the storage cavity 15 inside, with the four rock wools 6 located outside the four sound-absorbing cotton 7s. When a fire occurs indoors or outdoors in a building, the surface of the outer ventilation pipe 101 will not be affected by high temperature, causing the internal core pipe 102 to deform, achieving a good fire prevention effect;

[0048] At the same time, with the help of the four sound-absorbing cotton 7s, the multiple sound-absorbing strip grooves 18 processed on both surfaces of the reinforcement plate 5, and the multiple sound-absorbing holes 16 processed inside the four rib plates 103, when air flows inside the core pipe 102 to generate noise, or when the building wall 4 is impacted, vibrated, etc., the four sound-absorbing cotton 7s and the sound-absorbing strip grooves 18 on the reinforcement plate 5 can be used to block the propagation of noise in the air, and the sound-absorbing holes 16 inside the rib plates 103 can be used to weaken the noise propagating in solids, thereby achieving the effect of noise reduction.

[0049] It should be noted that the overall structure of the method of carrying the rock wool 6 and the sound-absorbing cotton 7 by the outer ventilation pipe 101 and the core pipe 102 is relatively simple, and both the fire prevention performance and the sound insulation performance can be guaranteed. Moreover, since the four rock wools 6 and the four sound-absorbing cotton 7s are encapsulated into the inside of the storage cavity 15 through two flange structures 2, it is conducive to application and subsequent replacement.

[0050] Embodiment 2:

[0051] Based on Embodiment 1, as Figures 2 to 5 、 Figure 7 and Figure 8 shown, this embodiment introduces the specific structure of the flange structure 2. The flange structure 2 includes a transition frame 203. One end of the transition frame 203 is integrally formed with a flange plate A202, and the other end of the transition frame 203 is integrally formed with a buckle cover 201;

[0052] As Figure 4 、 Figure 5 and Figure 7 shown, receiving slots 12 are processed at the top and bottom of both ends of the core pipe 102. Elastic pieces 13 are assembled and connected to the bottom inner wall of the receiving slots 12, and limiting slots 10 are opened at the top and bottom inner walls of the transition frame 203;

[0053] Among them, by making both ends of the four rock wools 6 and the four sound-absorbing cotton 7s extend from both ends of the outer ventilation pipe 101, when the flange structure 2 is sleeved on one end of the ventilation pipe main body 1, the buckle cover 201 can be buckled to one end of the four rock wools 6 and the four sound-absorbing cotton 7s, and the inner wall of the transition frame 203 can be made to fit the outer wall of one end of the core pipe 102, ensuring that the structure of the ventilation pipe main body 1 carrying two flange structures 2 is the same as the overall structure of a traditional ventilation pipe;

[0054] Meanwhile, in order to prevent the parts of the rock wool 6 and the sound-absorbing cotton 7 extending from the inside of the storage cavity 15 from shaking inside the cover 201, as Figure 4 and Figure 5 shown, a support frame 204 is machined on the inner wall of the cover 201. By inserting the support frame 204 into the gap between the four rock wools 6 and the four sound-absorbing cottons 7, the positions of one ends of the four rock wools 6 and the four sound-absorbing cottons 7 can be located, the gap between the rock wool 6 and the sound-absorbing cotton 7 can be filled, and both ends of the rock wool 6 and the sound-absorbing cotton 7 can be kept in a stable state;

[0055] Secondly, when the transition frame 203 is sleeved on the outside of one end of the core pipe 102, first deform the elastic piece 13 and put it into the inside of the storage notch 12. When the elastic piece 13 is located inside the limit notch 10, make one side of the top of the elastic piece 13 abut against the inner wall of one side of the limit notch 10. When the flange structure 2 is sleeved on one end of the ventilation pipe main body 1, the fixing work of the flange structure 2 and the ventilation pipe main body 1 can be completed, which is simple and convenient;

[0056] In some examples, loading and unloading round holes 14 are opened at the tops of both ends of the elastic piece 13, and disassembly notches 9 are opened at the outer walls of the top and bottom of the transition frame 203;

[0057] Among them, by passing a bolt through the inside of the loading and unloading round hole 14 and screwing it to the core pipe 102 at the bottoms of both ends of the elastic piece 13, the elastic piece 13 is assembled to the inner wall at the bottom of the storage notch 12, which is convenient for the installation and disassembly of the elastic piece 13;

[0058] Secondly, by making the inside of the disassembly notch 9 communicate with the inside of the limit notch 10, when the elastic piece 13 is pressed into the inside of the storage notch 12 through a tool to deform it through the inside of the disassembly notch 9, the outside of the transition frame 203 can be directly removed from one end of the core pipe 102, which is beneficial to the operation;

[0059] In some examples, a rectangular groove A8 is machined on the inner wall of the flange A202 away from the transition frame 203, rectangular grooves B11 are machined on the outer walls of both ends of the core pipe 102, elastic pieces 13 are filled between the rectangular groove A8 and the rectangular groove B11, a flange B20 is arranged on one side of the flange A202, and an external ventilation pipe 19 is integrally formed on the surface of one side of the flange B20;

[0060] Among them, after the flange B20 and the flange A202 are assembled and fixed, the sealing ring 3 is pressed into the inside of the rectangular groove B11 and the rectangular groove A8, the gap between the sealing ring 3 and the inner wall of the rectangular groove A8 and the gap between the sealing ring 3 and the inner wall of the rectangular groove B11 can be eliminated, so as to eliminate the gap between the flange B20 and the ventilation pipe main body 1, and the air flow inside the core pipe 102 and the external ventilation pipe 19 can be supported, and the air leakage during the air flow inside the core pipe 102 and the external ventilation pipe 19 can be avoided.

[0061] In the above design, a support frame 204 is machined inside the cover 201 on the flange structure 2. When the transition frame 203 is sleeved outside one end of the core pipe 102, first, the elastic piece 13 is deformed and received inside the storage notch 12. When the elastic piece 13 is located inside the limit notch 10, one side of the top of the elastic piece 13 abuts against the inner wall of one side of the limit notch 10 to achieve a limiting effect (when releasing the limit, only need to press the elastic piece 13 into the storage notch 12 through the disassembly notch 9 with a tool to deform it, and then remove the flange A 202 from one end of the core pipe 102). This is beneficial for the cover 201 to be buckled outside the parts of the four rock wools 6 and the four sound-absorbing cottons 7 extending out through the storage cavity 15. In this state, the support frame 204 extends into the gap between the four rock wools 6 and the four sound-absorbing cottons 7 to position one end of the four rock wools 6 and the four sound-absorbing cottons 7, so that both ends of the rock wool 6 and the sound-absorbing cotton 7 are in a stable state).

[0062] Meanwhile, when the sealing ring 3 is filled between the rectangular groove A 8 on the inner wall of the flange A 202 and the rectangular groove B 11 on the outer wall of one end of the core pipe 102, after the flange A 202 and the flange B 20 at one end of the external air duct 19 are assembled and fixed, the sealing ring 3 can be expanded to eliminate the gap between the flange B 20 and the ventilation pipe main body 1, avoiding air leakage during the flow inside the core pipe 102 and the external air duct 19.

[0063] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A fireproof and soundproof integral ventilation sleeve, characterized in that: include: Ventilation pipe body (1); Flange structures (2), two of which are provided; The ventilation pipe body (1) comprises a core pipe (102), an outer ventilation pipe tube (101) is arranged outside the core pipe (102), ribs (103) are integrally formed at four corners of the outer wall of the core pipe (102) and four corners of the inner wall of the outer ventilation pipe tube (101), and four storage chambers (15) are formed between the outer ventilation pipe tube (101) and the core pipe (102), and rock wool (6) and sound-absorbing cotton (7) are arranged inside the four storage chambers (15); The four rock wools (6) and the four sound-absorbing cottons (7) are all surrounded by the core tube (102); the four rock wools (6) are located on the outside of the four sound-absorbing cottons (7); the ventilation duct outer tube (101) is buried inside the building wall (4); the two flange structures (2) are respectively arranged at both ends of the ventilation duct body (1); the four rock wools (6) and the four sound-absorbing cottons (7) are encapsulated between the inner wall of the ventilation duct outer tube (101) and the outer wall of the core tube (102).

2. A fireproof and soundproof integral ventilation sleeve as claimed in claim 1, characterized in that: Positioning notches (17) are provided on both side surfaces of the four ribs (103), and a reinforcing plate (5) is pinned between two positioning notches (17) between two adjacent corners of the core tube (102); The rock wool (6) is located between the inner wall of the ventilation pipe outer tube (101) and the reinforcement plate (5), and the sound-absorbing cotton (7) is located between the outer wall of the core tube (102) and the reinforcement plate (5).

3. A fireproof and soundproof integral ventilation sleeve as claimed in claim 2, characterized in that: The surfaces on both sides of the reinforcement plate (5) are processed with a plurality of sound-absorbing grooves (18), the cross-sections of the plurality of sound-absorbing grooves (18) are all isosceles trapezoidal, and the plurality of sound-absorbing grooves (18) on the surfaces on both sides of the reinforcement plate (5) are arranged in a staggered manner.

4. A fireproof and soundproof integral ventilation sleeve as claimed in claim 1, characterized in that: A plurality of silencer holes (16) are processed inside the four ribs (103), and the plurality of silencer holes (16) connect the two ends of the ribs (103).

5. The fireproof and soundproof integral ventilation sleeve according to claim 1, characterized in that: The flange structure (2) comprises a transition frame (203), one end of the transition frame (203) is integrally formed with a flange plate A (202), and the other end of the transition frame (203) is integrally formed with a buckle cover (201); The two ends of the four rock wools (6) and the four sound-absorbing cottons (7) extend out from the two ends of the ventilation duct outer tube (101), the buckle cover (201) is buckled to one end of the four rock wools (6) and the four sound-absorbing cottons (7), and the inner wall of the transition frame (203) is in contact with the outer wall of one end of the core tube (102).

6. A fireproof and soundproof integral ventilation sleeve as claimed in claim 5, characterized in that: A support frame (204) is processed on the inner wall of the buckle cover (201), and the support frame (204) extends into the gap between the four rock wools (6) and the four sound-absorbing cottons (7) to position one end of the four rock wools (6) and the four sound-absorbing cottons (7).

7. A fireproof and soundproof integral ventilation sleeve as claimed in claim 5, characterized in that: The top and bottom of both ends of the core tube (102) are processed with receiving slots (12), the bottom inner wall of the receiving slot (12) is assembled with a spring piece (13), and the top and bottom inner walls of the transition frame (203) are provided with limiting slots (10); When the transition frame (203) is sleeved on the outside of one end of the core tube (102), the spring sheet (13) is first deformed and retracted into the interior of the receiving slot (12), and when the spring sheet (13) is located inside the limiting slot (10), one side of the top of the spring sheet (13) is pressed against the inner wall of one side of the limiting slot (10).

8. A fireproof and soundproof integral ventilation sleeve as claimed in claim 7, characterized in that: The tops of both ends of the spring sheet (13) are provided with loading and unloading circular holes (14), and bolts pass through the inside of the loading and unloading circular holes (14), and pass through the bottoms of both ends of the spring sheet (13) to be threadedly connected with the core tube (102), so that the spring sheet (13) is assembled to the bottom inner wall of the receiving slot (12).

9. A fireproof and soundproof integral ventilation sleeve as claimed in claim 7, characterized in that: The outer walls of the top and bottom of the transition frame (203) are both provided with disassembly notches (9), and the interior of the disassembly notches (9) is connected to the interior of the limiting notches (10).

10. The fireproof and soundproof integral ventilation sleeve according to claim 5, characterized in that: A rectangular groove A (8) is machined on the inner wall of the flange A (202) away from the transition frame (203), and rectangular grooves B (11) are machined on the outer walls of both ends of the core tube (102), and a spring piece (13) is filled between the rectangular groove A (8) and the rectangular groove B (11); A flange B (20) is provided on one side of the flange A (202), and an external air duct (19) is integrally formed on the surface of one side of the flange B (20); After the flange B (20) is assembled and fixed with the flange A (202), the sealing ring (3) is pressed into the rectangular groove B (11) and the rectangular groove A (8), thereby eliminating the gap between the flange B (20) and the ventilation pipe body (1), and supporting the flow of air inside the core pipe (102) and the external air pipe (19).

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