Novel stainless steel air pipe

Abstract

The utility model relates to the technical field of pipeline structures, and discloses a novel stainless steel air pipe which comprises an air pipe body, a connecting opening is formed in the air pipe body, a closing plate is arranged at the connecting opening, mounting grooves are formed in the positions, on the two opposite sides of the connecting opening, of the side wall of the air pipe body, and a mounting block is arranged on the side, facing the connecting opening, of the closing plate. One end of the mounting block extends into the mounting groove to be fixed, a cavity is formed in the closing plate, and the other end of the mounting block extends into the cavity in a sliding manner and is provided with an arc surface; a locking transmission structure is arranged in the cavity of the closing plate, the locking transmission structure comprises a center rotating part and linear moving parts, the two linear moving parts are connected to the two sides of the center rotating part and driven by the center rotating part to be close to or away from each other, and the ends, away from the center rotating part, of the linear moving parts are of an arc-shaped structure and make contact with the arc face of the mounting block; a threaded hole communicated with the mounting groove is formed in the side wall of the air pipe body, and a compression bolt is mounted in the threaded hole. The internal cleaning of the air pipe is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline structure technical field, concretely relates to a novel stainless steel air pipe. BACKGROUND

[0002] Stainless steel air pipe is widely used in the ventilation and exhaust system of various industrial and commercial buildings due to its corrosion resistance, high strength and long service life. However, in actual use, stainless steel air pipe inevitably carries impurities in the air, such as dust, particulate matter and other pollutants. These impurities gradually accumulate and adhere to the inner wall of the air pipe during long-term operation, resulting in a decrease in exhaust effect and affecting the overall performance of the system.

[0003] The interface of traditional stainless steel air pipe is usually fixed by welding. Although this connection method ensures the stability and sealing of the structure, it also brings the problem of difficult disassembly. Once the inside of the air pipe needs to be cleaned or maintained, the worker must spend a lot of time and effort to disassemble the welded part, increasing the operation difficulty and cost. Due to the difficulty of quickly disassembling the welded interface, the cleaning work inside the air pipe becomes very inconvenient. Workers often need to clean the inside of the air pipe through a narrow access hole, which not only reduces work efficiency but also poses a safety hazard. In addition, long-term cleaning operation can also cause physical damage to the air pipe, further affecting its service life. SUMMARY

[0004] The utility model intends to provide a novel stainless steel air pipe to solve the problem of inconvenient cleaning inside the traditional stainless steel air pipe.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a novel stainless steel air pipe, comprising an air pipe body, a connecting port is opened on the air pipe body and communicates with the inside thereof, a closure plate is arranged at the connecting port, mounting grooves are opened on the side walls of the air pipe body on the opposite sides of the connecting port, a mounting block is arranged on the side of the closure plate facing the connecting port, one end of the mounting block is fixed by extending into the mounting groove, a cavity is arranged inside the closure plate, the other end of the mounting block extends into the cavity and is provided with an outwardly protruding arc surface; a locking transmission structure is arranged in the cavity of the closure plate, the locking transmission structure comprises a central rotating part and straight line moving parts, the straight line moving parts are connected on the two sides of the central rotating part and are driven by the central rotating part to approach or move away from each other, the end part of the straight line moving part away from the central rotating part is in arc structure and in contact with the arc surface of the mounting block; a threaded hole is opened on the side wall of the air pipe body and communicates with the mounting groove, a compression bolt is installed in the threaded hole.

[0006] The principle and advantages of the present scheme are as follows:

[0007] 1. In practical application, align one end of the mounting block with the mounting groove. Then, by rotating the central rotating part, the linear moving parts on both sides move away from each other, towards the mounting block. The arc-shaped structure at the end of the linear moving part contacts the arc surface of the mounting block, gradually pushing the mounting block into the mounting groove. The linear moving part and the clamping bolts then firmly secure the mounting block. When cleaning is required, loosen the clamping bolts and rotate the central rotating part in the opposite direction to bring the linear moving parts closer together. Then, remove the closing plate to clean the inside of the duct. Compared to traditional welded interfaces, this solution only requires simple operation of the closing plate to complete disassembly and assembly, greatly reducing disassembly time and effort, improving work efficiency, and allowing cleaning personnel to enter the duct through a larger opening for cleaning, avoiding the inconvenience of operating through narrow access ports.

[0008] 2. This solution eliminates the need for frequent disassembly and welding of the ductwork, reducing the risk of physical damage to the duct structure and extending the overall service life of the ductwork. Furthermore, the convenient cleaning method reduces the erosion of the inner wall of the ductwork by long-term accumulated impurities, preventing secondary pollution and further improving the performance and lifespan of the system.

[0009] 3. Larger cleaning openings allow workers to operate in a safer and more comfortable environment, reducing safety hazards associated with working at heights or in confined spaces. The simplified maintenance process reduces the need for specialized technicians, lowering labor costs and operational risks.

[0010] Furthermore, after the closing plate is fixed, the inner surface of the closing plate is flush with the inner wall of the duct body.

[0011] The above design ensures that the inner wall surface of the duct body is completely flat, eliminating any protrusions inside the duct body. This reduces turbulence caused by uneven surfaces, lowers airflow resistance, and reduces noise. On the other hand, the flat design makes the inner surface of the duct smoother and flatter, reducing the accumulation points of dust and impurities, making it easier for staff to clean thoroughly. At the same time, cleaning tools can move more smoothly, improving cleaning efficiency and reducing cleaning difficulty.

[0012] Furthermore, the connection port is located on the side wall of the duct body in the left and right directions.

[0013] Theoretically, the connecting port can be arranged on the left side, the right side, the bottom or the top of the air pipe body, but in actual operation, the above arrangement avoids direct interference of the top or bottom opening to the main airflow path, reduces airflow turbulence and resistance in the vertical direction, ensures that the airflow can pass through the air pipe more smoothly, and the arrangement on the left and right side walls helps to disperse the pressure borne by the air pipe, reduces local stress concentration phenomenon, and enhances the stability and durability of the overall structure. The arrangement of the connecting port on the left and right side walls can also reduce the maintenance frequency caused by dust and water vapor condensation, and the side opening has more operation space, especially for air pipes installed high, the side opening is easier to access, improving work efficiency.

[0014] Further, the center rotating part and the linear moving part are a center gear and two racks meshing on both sides of the center gear, the end of the rack close to the mounting block is arc-shaped, a fixed shaft is arranged in the inner hole of the center gear, and the other end of the fixed shaft penetrates outward to the outside of the closing plate and is connected with a rotating handle.

[0015] The center gear and the two racks on both sides form a complete gear transmission system, ensuring that all linear moving parts, i.e. the racks, can move linearly synchronously and stably, and the synchronization improves the reliability and consistency of the locking and unlocking process; and the gear transmission has high torque transmission efficiency, can accurately transmit the rotating torque of the rotating handle to the rack, and ensures the response speed and operation precision between structures.

[0016] Further, the center rotating part is a rotating disc, a fixed shaft is vertically connected to the center of the rotating disc, the other end of the fixed shaft penetrates outward to the outside of the closing plate and is connected with a rotating handle, and the linear moving part is a connecting rod connected to the rotating disc, the end of the connecting rod away from the rotating disc is hinged with a first sliding block, the sliding block moves slidingly in the closing plate, and the end of the sliding block close to the mounting block is arc-shaped.

[0017] The rotation of the rotating disc is directly controlled by the rotating handle to drive the sliding block to slide, making the opening and closing of the closing plate extremely simple, and the staff can complete the operation by only rotating the handle, greatly reducing the disassembly and assembly time and effort, and improving the work efficiency. Secondly, the combination design of the rotating disc, the fixed shaft, the connecting rod and the sliding block makes the whole locking transmission structure modularized, simplifies the manufacturing process and reduces the production cost. The connection mode between the components is simple and clear, facilitating on-site installation and maintenance, reducing assembly difficulty and time cost.

[0018] Further, the mounting block is provided with a limiting block at the end close to the closing plate, and a limiting groove is opened in the closing plate for sliding of the limiting block.

[0019] The limiting block and the limiting slot prevent the mounting block from being taken out of the closing plate, and the sliding of the limiting block in the limiting slot limits the lateral movement of the mounting block, thereby enhancing the stability of the system and preventing the closing plate from being deviated or vibrated during use.

[0020] Further, a sealing gasket is arranged between the side wall of the air pipe body and the closing plate.

[0021] The sealing gasket seals the gap between the air pipe body and the closing plate, prevents the gas in the air pipe from flowing out, and improves the sealing performance of the air pipe.

[0022] Further, the closing plate is provided with a locking structure for locking the fixing shaft on the side away from the connecting port, the locking structure comprises an L-shaped locking rod, the closing plate is provided with a locking hole on the outer side, the fixing shaft is provided with a strip-shaped hole, and the two ends of the locking rod are inserted into the locking hole and pass through the strip-shaped hole, respectively; a locking spring is fixed in the strip-shaped hole, one end of the locking spring close to the closing plate is fixed with a pressing block, and the locking spring is in a compressed state and abuts against the locking rod through the pressing block.

[0023] The above arrangement prevents the one end of the locking rod inserted into the locking hole from being taken out, locks the fixing shaft, effectively prevents the locking transmission structure from moving by itself and causing the connection between the closing plate and the air pipe body to be loose, and affects the stability of the structure sealing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a sectional view of the air pipe of the embodiment 1 of the utility model.

[0025] Figure 2 It is a local enlarged view of the embodiment 1 of the utility model.

[0026] Figure 3 It is Figure 1 A local enlarged view of the part A.

[0027] Figure 4 It is Figure 1 A local enlarged view of the part B.

[0028] Figure 5 It is a sectional view of the air pipe of the embodiment 2 of the utility model.

[0029] Figure 6 It is a local enlarged view of the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0030] The following will be further described in detail through specific embodiments:

[0031] The reference numerals in the accompanying drawings include: duct body 1, connection port 2, closing plate 3, cavity 4, mounting groove 5, mounting block 6, locking transmission structure 7, center gear 71, rack 72, second slider 73, rotating disk 74, connecting rod 75, first slider 76, fixed shaft 8, rotating handle 9, limit block 10, limit groove 11, sealing gasket 12, locking structure 13, locking rod 131, strip hole 132, locking hole 133, locking spring 134, pressing block 135, and pressing bolt 14.

[0032] Example 1

[0033] The basics are as follows: Figures 1-4 As shown: A novel stainless steel air duct includes an air duct body 1, with a connection port 2 communicating with its interior on the air duct body 1. A closing plate 3 is provided at the connection port 2. Preferably, the connection port 2 is located on the side wall of the air duct body 1 in the left-right direction. Mounting grooves 5 are provided on the upper and lower side walls of the air duct body 1 on opposite sides of the connection port 2. A mounting block 6 is provided on the side of the closing plate 3 facing the connection port 2. One end of the mounting block 6 extends into the mounting groove 5 and is fixed. A cavity 4 is provided inside the closing plate 3. The other end of the mounting block 6 slides into the cavity 4 and has an outwardly protruding arc surface.

[0034] Combination Figure 1 , Figure 2 As shown, a locking transmission structure 7 is provided in the cavity 4 of the closing plate 3. The locking transmission structure 7 includes a central rotating part and a linear moving part. The two linear moving parts are connected to both sides of the central rotating part and are driven by the central rotating part to move closer or further away from each other. The end of the linear moving part away from the central rotating part is an arc-shaped structure that contacts the arc surface of the mounting block 6. In this embodiment, the central rotating part and the linear moving part are a central gear 71 and a rack 72 meshing on both sides of the central gear 71, respectively. The end of the rack 72 near the mounting block 6 is an arc-shaped structure. A fixed shaft 8 is installed in the inner hole of the central gear 71. The other end of the fixed shaft 8 extends outward to the outside of the closing plate 3 and is connected to a rotating handle 9. A sliding groove (not shown in the figure) is opened on the wall of the cavity 4 of the closing plate 3. A second slider 73 is provided on the back of the rack 72. The sliding of the second slider 73 in the sliding groove makes the movement of the rack 72 more stable. The side wall of the duct body 1 has a threaded hole that communicates with the mounting groove 5. A clamping bolt 14 is installed in the threaded hole. When the closing plate 3 is installed and fixed, the end face of the clamping bolt 14 is pressed against the top of the mounting block 6, making the connection between the closing plate 3 and the duct body 1 more stable.

[0035] Preferably, after the closing plate 3 is fixed, the inner surface of the closing plate 3 is flush with the inner wall of the duct body 1, which reduces the turbulence caused by the uneven surface inside the duct body 1, and reduces airflow resistance and noise. On the other hand, the flush design makes the inner surface of the duct smoother and flatter, reduces the accumulation points of dust and impurities, and makes it easier for staff to clean thoroughly.

[0036] Combination Figure 3 As shown, a limiting block 10 is provided at one end of the mounting block 6 near the closing plate 3. A limiting groove 11 is opened in the closing plate 3 for the limiting block 10 to slide. The limiting block 10 and the limiting groove 11 limit the position of the end point of the mounting block 6 in the closing plate 3 and prevent the mounting block 6 from coming out of the closing plate 3. Moreover, the sliding of the limiting block 10 in the limiting groove 11 restricts the lateral movement of the mounting block 6, enhances the stability of the system, and prevents the closing plate 3 from shifting or vibrating during use.

[0037] A sealing gasket 12 is provided between the side wall of the duct body 1 and the closing plate 3. The sealing gasket 12 seals the gap between the duct body 1 and the closing plate 3, preventing the flow of air inside and outside the duct and improving the airtightness of the duct.

[0038] Combination Figure 4 As shown, the closing plate 3 has a locking structure 13 for locking the fixed shaft 8 on the side away from the connection port 2. The locking structure 13 includes an L-shaped locking rod 131. The closing plate 3 has a locking hole 133 on the outer side, and the fixed shaft 8 has a strip hole 132. The two ends of the locking rod 131 extend into the locking hole 133 and pass through the strip hole 132, respectively. A locking spring 134 is fixed in the strip hole 132. A pressing block 135 is fixed at the end of the locking spring 134 near the closing plate 3. Guide blocks are provided on both sides of the 35. The fixed shaft 8 has a guide groove on the side wall of the strip hole 132 that cooperates with the guide blocks. The locking spring 134 is in a compressed state. The elastic force of the locking spring 134 acts on the locking rod 131 through the pressing block 135, pressing the locking rod 131 against it, so that the end of the locking rod 131 inserted into the locking hole 133 will not come out, locking the fixed shaft 8, effectively preventing the locking transmission structure 7 from moving on its own and causing the connection between the closing plate 3 and the air duct body 1 to loosen, affecting the stability of the structural seal.

[0039] In specific application, one end of the mounting block 6 is aligned with the mounting groove 5, then the central gear 71 is driven to rotate forward by rotating the handle 9, the two racks 72 are driven to move away from each other, the racks 72 move towards the mounting block 6, and the arc-shaped structure at the end of the rack 72 is in contact with the arc surface of the mounting block 6 to gradually push the mounting block 6 into the mounting groove 5, then the compression bolts 14 are tightened to fix the mounting block 6 by the racks 72 and the compression bolts 14, then the locking rod 131 is inserted into the locking hole 133 and the strip-shaped hole 132 to lock the fixing shaft 8; when cleaning, the locking rod 131 is taken out first, then the compression bolts 14 are loosened, the racks 72 are driven to move towards the middle by reversing the handle 9, and then the closure plate 3 is disassembled to clean the inside of the air pipe. Compared with the traditional welded interface, the closure plate 3 can be simply operated to complete the disassembly and assembly in the scheme, the disassembly time and effort are greatly reduced, the work efficiency is improved, and the cleaning personnel can enter the inside of the air pipe through the large opening to clean, avoiding the inconvenience caused by the operation through the narrow access hole.

[0040] Embodiment 2

[0041] In combination Figure 5 、 Figure 6 As shown in the drawings, compared with embodiment 1, in the embodiment, the central rotating part is a rotating disc 74, the center of the rotating disc 74 is vertically connected with a fixing shaft 8, the other end of the fixing shaft 8 penetrates to the outside of the closure plate 3 and is connected with a rotating handle 9, and the linear moving part is a connecting rod 75 connected to the rotating disc 74, the end of the connecting rod 75 away from the rotating disc 74 is hinged with a first sliding block 76, the end of the first sliding block 76 close to the mounting block 6 is arc-shaped, the wall surface of the cavity 4 of the closure plate 3 is provided with a guide rail, and the bottom of the first sliding block 76 is provided with a guide groove, the sliding block is stably slid in the closure plate 3 by cooperation of the guide groove and the guide rail. The embodiment and embodiment 1 make the implementation structure of the locking transmission structure 7 more abundant, and any implementation form of the locking transmission structure 7 can be selected according to actual design requirements.

[0042] The above only describes the embodiments of the utility model, and the specific technical solutions and / or common knowledge of characteristics in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the utility model, a plurality of deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect and practicality of the utility model. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A novel stainless steel air duct, characterized in that: The duct includes a main body with a connection port communicating with its interior. A closing plate is provided at the connection port. Mounting grooves are provided on the side walls of the duct body opposite to the connection port. A mounting block is provided on the side of the closing plate facing the connection port. One end of the mounting block extends into the mounting groove and is fixed. The closure plate has a cavity inside. The other end of the mounting block slides into the cavity and has an outwardly protruding arc surface. A locking transmission structure is provided in the cavity of the closing plate. The locking transmission structure includes a central rotating part and a linear moving part. The two linear moving parts are connected to both sides of the central rotating part and are driven by the central rotating part to move closer or further away from each other. The end of the linear moving part away from the central rotating part has an arc structure and contacts the arc surface of the mounting block. A threaded hole communicating with the mounting groove is provided on the side wall of the duct body, and a clamping bolt is installed in the threaded hole.

2. The novel stainless steel air duct according to claim 1, characterized in that: After the closing plate is fixed, the inner surface of the closing plate is flush with the inner wall of the duct body.

3. The novel stainless steel air duct according to claim 2, characterized in that: The connection port is located on the side wall of the duct body in the left and right directions.

4. A novel stainless steel air duct according to claim 3, characterized in that: The central rotating part and the linear moving part are a central gear and a rack meshing on both sides of the central gear, respectively. The end of the rack near the mounting block has an arc-shaped structure. A fixed shaft is installed in the inner hole of the central gear. The other end of the fixed shaft extends outward to the outside of the closing plate and is connected to a rotating handle.

5. A novel stainless steel air duct according to claim 3, characterized in that: The central rotating part is a rotating disk, and a fixed shaft is vertically connected to the center of the rotating disk. The other end of the fixed shaft extends outward to the outside of the closed plate and is connected to a rotating handle. The linear moving part is a connecting rod connected to the rotating disk. The end of the connecting rod away from the rotating disk is hinged to a first slider. The slider slides within the closed plate, and the end of the slider near the mounting block has an arc-shaped structure.

6. A novel stainless steel air duct according to any one of claims 1-5, characterized in that: The mounting block is provided with a limiting block at one end near the closing plate, and a limiting groove is provided in the closing plate for the limiting block to slide.

7. A novel stainless steel air duct according to claim 6, characterized in that: A sealing gasket is provided between the side wall of the duct body and the closing plate.

8. A novel stainless steel air duct according to claim 7, characterized in that: The closing plate has a locking structure on the side away from the connection port for locking the fixed shaft. The locking structure includes an L-shaped locking rod. The closing plate has a locking hole on the outer side, and the fixed shaft has a strip hole. The two ends of the locking rod extend into the locking hole and pass through the strip hole, respectively. A locking spring is fixed in the strip hole. A pressing block is fixed to the end of the locking spring near the closing plate. The locking spring is in a compressed state and presses against the locking rod through the pressing block.

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