Assembled smoke prevention and exhaust pipeline

Abstract

The utility model relates to the field of smoke prevention and exhaust pipelines, in particular to an assembled smoke prevention and exhaust pipeline, which comprises two pipe bodies, an air duct and four connecting mechanisms, the air duct and the connecting mechanisms are arranged between the two pipe bodies, the number of the connecting mechanisms is four, and the connecting mechanisms are used for quick butt joint of the two pipe bodies; wherein the connecting mechanism comprises two butt-joint strips and a sleeve frame, the butt-joint strips are different in length, the opposite sides of the butt-joint strips make contact, the sleeve frame is arranged on the outer sides of the two butt-joint strips in a sleeving mode, and a limiting strip extending into one pipe body is installed on one side of the sleeve frame; according to the smoke exhaust pipe, connection between the smoke exhaust pipe bodies can be rapidly completed, meanwhile, the good stability is achieved, the loosening phenomenon caused by the vibration influence of the pipe bodies is reduced, meanwhile, the joints between the pipe bodies can be shielded and sealed, and the smoke leakage phenomenon is reduced while backward flowing prevention is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of smoke exhaust pipeline, especially a kind of assembled smoke exhaust pipeline. BACKGROUND

[0002] The smoke exhaust system is composed of smoke exhaust pipeline, pipe well, fire damper, door opening and closing equipment, air supply and exhaust fan and other equipment, and the smoke exhaust pipeline is used to exhaust smoke and dust in the room to the outdoor by air extraction machinery.

[0003] Through the search, the authorized announcement number "CN218209948U" of "a high-efficiency commercial smoke exhaust ventilation and smoke exhaust pipeline" includes smoke exhaust pipeline pipe body, the top of smoke exhaust pipeline pipe body is fixedly connected with anti-backflow chimney, smoke exhaust pipeline pipe body is sequentially fixedly connected between the tail of multiple combination pipeline monomers, multiple combination pipeline monomers include aluminum alloy pipe cylinder, upper combination flange and lower combination flange, the periphery of the top of aluminum alloy pipe cylinder is fixedly provided with upper combination flange, a plurality of combination screw holes are formed in the surface of upper combination flange;Through combination design, flexible and rapid splicing assembly can be carried out according to actual use demand, and operation is simple and convenient, air deflector and anti-backflow baffle are additionally provided, and the phenomenon of natural wind backflow during use can be effectively prevented, but the above-mentioned mode has the following defects in actual use process: it is connected and installed by bolt, in the long-term use process of smoke exhaust pipeline pipe body, under the influence of internal air pressure, vibration phenomenon is easy to occur in smoke exhaust pipeline pipe body, so that bolt is loose at the connection, that is, the installation stability is affected, and the anti-backflow baffle arranged in the interior can achieve the effect of preventing backflow, but the exhaust opening in the region is reduced, the internal air pressure is increased, and the phenomenon of smoke leakage along the connection of smoke exhaust pipeline pipe body is easy to occur.

[0004] Therefore, an assembled smoke exhaust pipeline is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above problems and provides an assembled smoke exhaust pipeline, which improves the poor installation stability and the problem of easy smoke leakage.

[0006] The utility model realizes the above-mentioned purpose by the following technical scheme, an assembled smoke exhaust pipeline, including two pipe bodies, air deflector between two pipe bodies and connecting mechanism, the number of connecting mechanism is four, the connecting mechanism is used for the quick butt joint of two pipe bodies;Among them, the connecting mechanism includes two butt joint strips of different lengths and opposite sides contact and sleeve frame, the sleeve frame is sleeved to the outside of two butt joint strips, the side of sleeve frame is equipped with the limiting strip extending to the inside of one pipe body.

[0007] Preferably, the connecting mechanism further comprises a clamping strip, which is mounted to the outer side of the air duct, and the inner side of one of the pipe bodies is provided with a clamping groove for abutting with the clamping strip.

[0008] Preferably, the inner side of one of the pipe bodies is embedded with a sealing ring, and one end of the air duct is in contact with the outer side of the sealing ring.

[0009] Preferably, two sliding grooves are formed in the air duct, two pressing plates are slidingly connected in the sliding grooves, and two inclined grooves are formed in the inner side of the air duct and communicate with the sliding grooves.

[0010] Preferably, the clamping strip is provided with a limiting hole on one side, and the limiting hole extends to the inner side of one of the pipe bodies and is used for abutting with a limiting strip.

[0011] Preferably, the sleeve frame is slidingly connected to the outer side of one of the abutting strips, and the inner side of the sleeve frame is mounted with an inserting strip which is frictionally sliding to the inner side of the other abutting strip.

[0012] Preferably, the air duct is fixedly mounted to the inner side of one of the pipe bodies and extends to the outer side thereof, and one end of the air duct is inserted into the inner side of the other pipe body.

[0013] The utility model discloses the beneficial effect is:

[0014] 1. By setting up clamping strip and clamping groove, complete the quick butt joint between pipe body, the rotation of two pipe bodies is positioned, and the sleeve frame is set to the abutting strip on two pipe bodies, and the translation movement of two pipes is completed, and the limiting strip is inserted into the inner side of the corresponding pipe body, and the limiting effect is improved, and the stability of the sleeve frame is guaranteed by the inserting strip that is frictionally sliding with the corresponding abutting strip, and the phenomenon that the connecting part is loose due to pipe body vibration is reduced.

[0015] 2. By setting up air duct, the connecting part of two pipe bodies is shielded while preventing backflow, the phenomenon of smoke leakage is reduced, and the inclined groove in the inner side of the air duct can assist the smoke emission in the air duct, the smoke emission in the inclined groove can also be used to drive the pressing plate, the sealing ring is helped to limit, the sealing property of the pipe body is further guaranteed, and the phenomenon of smoke leakage is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the explosion schematic diagram of two pipe bodies of the utility model;

[0018] Figure 3 It is the explosion schematic diagram of clamping strip and clamping groove of the utility model;

[0019] Figure 4This is a cross-sectional schematic diagram of the air guide tube and inclined groove of this utility model;

[0020] Figure 5 This utility model Figure 1 Enlarged diagram of A in the middle;

[0021] Figure 6 This utility model Figure 2 Enlarged diagram of B in the diagram.

[0022] In the diagram: 100, pipe body; 110, air guide tube; 111, pressure plate; 112, inclined groove; 120, sealing ring; 200, connecting mechanism; 210, connecting strip; 220, sleeve frame; 221, limiting strip; 222, insert strip; 230, retaining strip; 231, retaining groove; 232, limiting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In practical implementation: such as Figures 1-6 As shown, an assembled smoke exhaust duct includes two pipe bodies 100, an air guide duct 110 disposed between the two pipe bodies 100, and a connecting mechanism 200. The number of connecting mechanisms 200 is four, and the connecting mechanisms 200 are used for quick docking of the two pipe bodies 100. The connecting mechanism 200 includes two docking strips 210 of different lengths and in contact with each other on opposite sides, and a sleeve frame 220. The sleeve frame 220 is fitted onto the outside of the two docking strips 210, and a limiting strip 221 extending into the interior of one of the pipe bodies 100 is installed on one side of the sleeve frame 220.

[0025] like Figure 2 , Figure 3 and Figure 6 As shown, the connecting mechanism 200 also includes a retaining strip 230, which is installed on the outside of the air duct 110, and a slot 231 that mates with the retaining strip 230 is provided inside a tube body 100.

[0026] When the two pipe bodies 100 are docked and installed, the clamping strip 230 on one pipe body 100 can be inserted into the corresponding clamping groove 231 in the other pipe body 100 to complete the pre-docking, at which time the air duct 110 is between the two pipe bodies 100, achieving the function of assisting in docking and also shielding the connection between the two pipe bodies 100 from the inside to reduce the occurrence of smoke leakage. At this time, the docking of the clamping groove 231 and the clamping strip 230 can reduce the rotation and shaking of the two pipe bodies 100. Then, after the pre-docking of the two pipe bodies 100, the two docking strips 210 of different lengths will be in contact, and then the sleeve frame 220 is slid in sequence so that it is sleeved to the outside of the two docking strips 210, that is, the rapid docking is completed. During the movement of the sleeve frame 220, the limiting strip 221 on the outside will be inserted into the inside of the clamping strip 230 of one pipe body 100 to complete the repositioning and reduce the accidental separation of the two pipe bodies 100. The entire installation method is convenient and can effectively resist the shaking of the pipe body 100 during the smoke exhaust process, having good stability.

[0027] As shown in Figure 3 , a sealing ring 120 is embedded in the inside of one pipe body 100, and one end of the air duct 110 is in contact with the outside of the sealing ring 120.

[0028] The use of the sealing ring 120 facilitates the air tightness of the pipe body 100 and reduces the leakage of smoke between the air duct 110 and the pipe body 100.

[0029] As shown in Figure 2 and Figure 4 , two sliding grooves are formed on the air duct 110, two pressure plates 111 are slidably connected in the sliding grooves, two inclined grooves 112 are formed in the inside of the air duct 110, and the inclined grooves 112 communicate with the sliding grooves.

[0030] During the smoke exhaust process, the air duct 110 can guide the smoke and has the function of preventing backflow. Due to the decrease in the inner diameter of the air duct 110, the pressure of the smoke increases during the smoke exhaust process. At this time, the inclined grooves 112 can be used to assist in guiding and discharging part of the smoke, and the pressure plate 111 is driven by the smoke to make the pressure plate 111 abut against the sealing ring 120, reducing the deformation and deviation of the sealing ring 120 during use.

[0031] As shown in Figure 5 and Figure 6 , a limiting hole 232 is formed on one side of the clamping strip 230, and the limiting hole 232 extends to the inside of one pipe body 100 and is used to dock with the limiting strip 221.

[0032] When the sleeve 220 moves, the limiting strip 221 will be inserted into the corresponding limiting hole 232, so that one tube 100 and its internal connecting strip 210 are both limited, thereby improving the connection stability between the two tubes 100.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the sleeve 220 is slidably connected to the outside of a mating strip 210, and an insert 222 is installed inside the sleeve 220. The insert 222 slides rubbed into the inside of another mating strip 210.

[0034] The frictional sliding method between the insert 222 and the corresponding mating strip 210 helps to ensure the stability of the sleeve 220, reduces the possibility of accidental displacement of the sleeve 220 during the installation and use of the pipe body 100, and ensures connection stability.

[0035] like Figure 2 and Figure 3 As shown, the air guide 110 is fixedly installed inside a pipe body 100 and extends to its outer side, and one end of the air guide 110 is inserted into the inside of another pipe body 100.

[0036] The air duct 110 is inserted into the pipe body 100 to assist in the connection and at the same time block the connection between the two pipe bodies 100 to reduce the occurrence of flue gas leakage.

[0037] Working principle: When installing two pipe bodies 100 together, the retaining strip 230 on one pipe body 100 can be inserted into the corresponding slot 231 in the other pipe body 100 to complete the pre-connection. At this time, the engagement of the slot 231 and the retaining strip 230 can reduce the rotation and shaking of the two pipe bodies 100. At this time, the air guide duct 110 is located between the two pipe bodies 100, which not only assists in the connection but also internally blocks the connection between the two pipe bodies 100, reducing the leakage of flue gas. The sealing ring 120 ensures the airtightness of the pipe body 100, further reducing the occurrence of flue gas leakage. During the flue gas exhaust process, the guide duct 110 can guide the flue gas and also has an anti-backflow function. Due to the reduced inner diameter of the guide duct 110 during flue gas exhaust, the pressure increases. At this time, the inclined groove 112 can be used to assist in the guided exhaust of part of the flue gas. At the same time, this part of the flue gas is used to drive the pressure plate 111, causing the pressure plate 111 to abut against the sealing ring 120, reducing the deformation of the sealing ring 120 due to the influence of flue gas during use. To prevent misalignment, after the two pipe bodies 100 are pre-connected, the two adjacent connecting strips 210 of different lengths will come into contact. Then, the sleeve frame 220 is slid in sequence, fitting onto the outside of the two connecting strips 210, thus completing the rapid connection. During the movement of the sleeve frame 220, its outer limiting strip 221 will insert into the inside of the retaining strip 230 of one of the pipe bodies 100, completing a second limiting and reducing the possibility of accidental separation of the two pipe bodies 100. The entire installation method is convenient and can effectively prevent misalignment of the pipe bodies 100 during smoke extraction. The device exhibits good stability despite its swaying motion. It can effectively and quickly connect the two pipe bodies 100 while maintaining good stability. In addition to using the air guide duct 110 to prevent backflow, it also shields the connection between the two pipe bodies 100, reducing the occurrence of flue gas leakage. At the same time, the inclined groove 112 inside can assist in the emission of flue gas in the air guide duct 110. The flue gas emitted in the inclined groove 112 can also be used to drive the pressure plate 111 to help limit the sealing ring 120 and ensure the effect of preventing flue gas leakage.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An assembled smoke control duct, characterized in that, The utility model relates to a kind of air ducts, including: Two pipe bodies (100) and air duct (110) being arranged between two pipe bodies (100); Connecting mechanism (200), the quantity of the connecting mechanism (200) is four, the connecting mechanism (200) is used for the quick butt joint of two pipe bodies (100); Wherein, the connecting mechanism (200) includes two long short and opposite side contact butt joint strip (210) and sleeve frame (220), the sleeve frame (220) is set to the outside of two butt joint strip (210), one side of the sleeve frame (220) is equipped with the limiting strip (221) extending to the inside of one pipe body (100).

2. An assembled smoke control duct according to claim 1, wherein: The connecting mechanism (200) further includes clamping strip (230), the clamping strip (230) is mounted to the outside of air duct (110), and the inside of one pipe body (100) is provided with clamping groove (231) for butt joint with clamping strip (230).

3. An assembled smoke control duct according to claim 1, wherein: The inside of one pipe body (100) is embedded with sealing ring (120), and one end of air duct (110) is in contact with the outside of sealing ring (120).

4. An assembled smoke control duct according to claim 1, wherein: Two sliding grooves are provided on the air duct (110), two pressure plates (111) are slidably connected in the sliding grooves, two inclined grooves (112) are provided in the air duct (110), and the inclined grooves (112) are communicated with the sliding grooves.

5. An assembled smoke control duct according to claim 2, wherein: Limiting hole (232) is provided on one side of the clamping strip (230), the limiting hole (232) extends to the inside of one pipe body (100) and is used for butt joint with limiting strip (221).

6. An assembled smoke control duct according to claim 1, wherein: The sleeve frame (220) is slidably connected to the outside of one butt joint strip (210), and the inside of the sleeve frame (220) is provided with an insertion strip (222) that is frictionally slid into the other butt joint strip (210).

7. An assembled smoke control duct according to claim 1, wherein: The air duct (110) is fixedly installed in one pipe body (100) and extends to the outside thereof, and one end of the air duct (110) is inserted into the other pipe body (100).

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