A kind of assembled steel heat insulation smoke exhaust duct

Abstract

The present invention discloses an assembled steel insulated smoke exhaust duct, the main points of the technical solution are: it comprises a bent pipe, both ends of the bent pipe are respectively provided with smoke exhaust pipes, the outside of the bent pipe is fixedly sleeved with two docking frames, one side of the docking frame is provided with a clamping groove; an assembly component is arranged on the outside of the smoke exhaust pipe, and is used to assemble and splice the smoke exhaust pipe and the bent pipe, and the bent pipe, smoke exhaust pipe, docking frame, clamping frame, clamping groove, splicing groove, rotating column, first gear, limiting strip, clamping teeth, rotating column, operating hole, movable column, second gear and rack are used in coordination with each other, so that the clamping frame is clamped into the inside of the clamping groove to assemble and splice the bent pipe and the smoke exhaust pipe, and because the smoke exhaust pipe and the clamping frame are clamped in the inside of the clamping groove, the assembled smoke exhaust duct can be prevented from being separated after the assembly bolts of the smoke exhaust duct fall off.

Description

Technical Field

[0001] The invention relates to the technical field of smoke exhaust ducts, and in particular to an assembled steel heat-insulated smoke exhaust duct. Background Art

[0002] The smoke exhaust duct is a piping system in the fire protection system used to remove smoke and harmful gases generated during a fire. As an important part of the modern building safety system, the design and installation of the smoke exhaust duct must follow strict specifications and standards to ensure effective smoke control and personnel evacuation in the event of a fire.

[0003] In the prior art, since the assembled smoke exhaust duct is usually connected by flange or bolts, these connection points are the key to ensuring the overall stability and sealing of the duct, and the assembly of the smoke exhaust duct is through contact at both ends and then fastened with bolts. During the installation of the assembled smoke exhaust duct, the bent part of the assembled smoke exhaust duct will increase the stress concentration at the connection part, making the bolts more likely to loosen, thereby causing the assembled smoke exhaust duct to fall off and separate. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an assembled steel insulated smoke exhaust duct to solve the problems raised in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A prefabricated steel insulated smoke exhaust duct comprises a bent pipe, both ends of the bent pipe are respectively provided with a smoke exhaust pipe, the outer side of the bent pipe is fixedly sleeved with two docking frames, one side of the docking frame is provided with a clamping groove; an assembly component is arranged on the outside of the smoke exhaust pipe for assembling and splicing the smoke exhaust pipe and the bent pipe, the assembly component comprises: two clamping frames, the two clamping frames are respectively fixedly sleeved on the outside of the two smoke exhaust pipes, the clamping frames are movably clamped with the clamping grooves, both sides of the clamping frames are respectively provided with splicing grooves, a rotating column is fixedly installed on one side of the inner side of the splicing groove, a first gear is movably sleeved on the outer circular wall surface of the rotating column, a limiting strip is arranged inside the splicing groove, a plurality of clamping teeth are fixedly installed on the inner circular wall surface of the limiting strip, and the clamping teeth are movably clamped with the tooth grooves of the first gear A rotating hole is provided on one side of the limiting bar, and a rotating column is fixedly installed on one side of the inner side of the splicing groove, and the rotating column is movably connected to the rotating hole. Operating holes are respectively provided on both sides of the docking frame, and a limiting groove is provided on the inner circular wall surface of the operating hole, and a movable column is movably connected to the inner circular wall surface of the operating hole, and a limiting ring is fixedly connected to the outer circular wall surface of the movable column, and the rotating column is movably connected to the limiting groove, and a second gear is fixedly installed on one end of the movable column, and two racks are provided inside the docking frame, and the racks are meshed with the second gear; an operating component for moving the rack is provided on one side of the clamping groove; a locking component for limiting the limiting bar is provided on one side of the inner side of the splicing groove; and a limiting component for preventing the second gear from rotating is provided on the top surface of the docking frame.

[0007] By adopting the above technical solution, through the set rack, when the staff assembles the smoke exhaust duct, they first move the bent pipe and the card frame and put them into the interior of the docking frame, so that the card frame is inserted into the interior of the card slot, and when the card slot enters the interior of the card slot, the rack enters the interior of the splicing slot, and then the rack will approach the first gear and mesh with the first gear, and then under the continuous push of the smoke exhaust pipe and the card slot frame, the meshing of the rack and the first gear will cause the first gear to rotate, and when the rack reaches one side of the interior of the splicing slot, it will touch the locking assembly, and the locking assembly will cause the limit bar and the card tooth to rotate, at this time, one end of the limit bar will rotate around the rotating column, and then the limit bar with the card tooth end will rotate downward, and then the card tooth will be inserted into the tooth groove of the first gear, so that The rotation of the first gear will be restricted. At this time, the second gear will be driven to rotate by rotating the movable column, and then the second gear will engage and drive the rack to move during rotation. The rack moves deep into the interior of the docking frame and pulls the first gear and the limiting strip to drive the clamping frame and the smoke exhaust pipe to move, thereby facilitating the clamping frame to be clamped into the interior of the clamping groove to assemble and splice the bent pipe and the smoke exhaust pipe. Since the first gear is restricted by the clamping teeth and cannot rotate, and the limiting assembly limits the movement of the rack, the bent pipe and the smoke exhaust pipe can be locked together. Since the smoke exhaust pipe and the clamping frame are clamped in the inside of the clamping groove, the assembled smoke exhaust duct can be prevented from being separated after the assembly bolts of the smoke exhaust duct fall off, because the bent pipe and the smoke exhaust pipe need to move in opposite directions to be separated.

[0008] Preferably, the operating component includes: a plurality of reserved grooves, the plurality of reserved grooves are respectively opened on one side of the interior of the two snap-in grooves, each of the snap-in grooves has two reserved grooves on one side of the interior, the rack is movably sleeved with the reserved grooves, a limit block is fixedly installed on the inner bottom surface of the reserved groove, support columns are respectively fixedly installed on both sides of the limit block, a movable wheel is movably sleeved on the outer circular wall surface of the support column, a stabilizing groove is opened on the bottom surface of the rack, the stabilizing groove is movably sleeved with the limit block, and an operating wheel is fixedly installed on one end of the movable column.

[0009] By adopting the above technical solution, through the set operating wheel, the staff can rotate the operating wheel to drive the movable column, the limit ring and the second gear to rotate, and then the rotation of the second gear will engage and drive the rack to move. Since the limit block and the movable wheel are inside the stable groove, when the rack moves, the movable wheel will move along the inner wall of the stable groove and rotate, thereby facilitating the stable limited movement of the rack.

[0010] Preferably, the locking assembly includes: a plurality of springs, wherein the plurality of springs are respectively fixedly mounted on one side of the inner portion of a plurality of splicing grooves, an extrusion plate is fixedly mounted on one end of the spring, a positioning column is fixedly mounted on one side of the extrusion plate, a plurality of positioning grooves are formed on the outer circular wall surface of the limiting strip, and the positioning column is movably connected to the positioning groove.

[0011] By adopting the above technical solution, through the blades that are set, when the rack enters the interior of the splicing groove and reaches the internal apex of the splicing groove, the rack will squeeze the extrusion plate and compress the spring to drive the positioning column to move, so that the positioning column can be moved out of the interior of the positioning groove to release the restriction on the restriction bar, and then the restriction bar and the engaging tooth can be dropped and rotated and the engaging tooth can be engaged in the tooth groove of the first gear. When the bending pipe and the smoke exhaust pipe need to be separated, the second gear is rotated to make the rack push the engaging frame and the smoke exhaust pipe to move, so that part of the splicing groove can be moved out of the interior of the docking frame, and then the restriction bar and the engaging tooth are manually pushed upward to release the restriction on the first gear, thereby facilitating the separation of the bending pipe and the smoke exhaust pipe.

[0012] Preferably, the limiting component comprises: a plurality of movable holes, the plurality of movable holes are respectively provided on the top surfaces of the two docking frames, the inner circular wall surface of the movable hole is movably sleeved with a screw rod, the top surface of the screw rod is fixedly mounted with a worm gear, two sides of the docking frame are respectively provided with operating grooves, the operating groove is connected to the movable hole, a blocking plate is fixedly mounted inside the operating groove, a supporting groove is provided on the inner bottom surface of the operating groove, the screw rod is movably sleeved with the supporting groove, a moving hole is provided on the inner bottom surface of the operating groove, a moving tube is threadedly connected to the outer circular wall surface of the screw rod, a thread is provided on the inner circular wall surface of the moving tube, a lifting plate is fixedly mounted on the outer circular wall surface of the moving tube, a clamping plate is fixedly mounted on the bottom surface of the lifting plate, a plurality of limiting grooves are provided on the outer circular wall surface of the operating wheel, the clamping plate passes through the moving hole and is movably sleeved with the limiting groove, two positioning plates are fixedly mounted on the outer circular wall surface of the moving tube, mounting grooves are provided on the inner two sides of the operating groove, and the positioning plate is movably sleeved with the mounting groove.

[0013] By adopting the above technical solution, through the provision of the clamping plate, when the bending tube and the smoke exhaust pipe are spliced ​​and assembled, the movable tube, the positioning plate, the lifting plate and the clamping plate are moved downward by rotating the screw rod, so that the clamping plate can pass through the movable hole and enter the interior of the limiting groove, thereby facilitating the restriction of the operating wheel and preventing the operating wheel and the second gear from rotating after the bending tube and the smoke exhaust pipe are assembled and spliced.

[0014] Preferably, a mounting shell is fixedly mounted on the top surface of the docking frame, mounting holes are respectively provided on both sides of the interior of the mounting shell, a bearing is fixedly sleeved on the inner circular wall surface of the mounting hole, a worm is fixedly sleeved on the inner circular wall surfaces of the two inner rings of the bearings, the worm is meshingly connected with the worm wheel, two sliding holes are provided on the outer circular wall surface of the worm, two rotating wheels are movably sleeved on the outer circular wall surface of the worm, a sliding column is fixedly mounted on the inner circular wall surface of the rotating wheel, the sliding column is movably sleeved on the sliding hole, a thread is provided on the outer circular wall surface of the worm, and a nut is threadedly connected to the outer circular wall surface of the worm.

[0015] By adopting the above technical solution, the worm is set up and the rotating wheel is rotated to drive the worm to rotate, so that the worm can be engaged to drive the worm wheel to rotate, and then the worm wheel will drive the lead screw to rotate. Since the worm can drive two worm wheels and the lead screw to rotate at the same time, it is convenient to allow the two moving tubes, lifting plate and clamping plate on a single docking frame to descend at the same time to synchronously restrict the two operating wheels.

[0016] Preferably, a sealing frame is fixedly installed on the bottom surface of the bending tube, a cleaning hole is opened on the bottom surface of the bending tube, a blocking frame is fixedly sleeved inside the cleaning hole, a plurality of threaded holes are opened on the bottom surface of the blocking frame, a sealing plate is movably sleeved inside the cleaning hole, a plurality of fixing holes are opened on the bottom surface of the sealing plate, the fixing holes correspond to the positions of the threaded holes, a first threaded column is movably sleeved on the inner circular wall surface of the fixing hole, and the first threaded column is threadedly connected to the threaded hole.

[0017] By adopting the above technical solution, a sealing plate is set up, and the bend in the smoke exhaust duct will hinder the airflow, increase local resistance, and cause the airflow speed to slow down. This deceleration makes it easier for particulate matter in the smoke to deposit at the bend, and then the smoke exhaust duct needs to be disassembled for cleaning. Then, the restriction on the sealing plate can be released by loosening the first threaded column and moving it out of the threaded hole and the fixing hole, and then the sealing plate is moved out of the cleaning hole to remove the obstruction of the cleaning hole, thereby facilitating the staff to directly clean the inside of the bend of the smoke exhaust duct.

[0018] Preferably, the inner wall of the sealing frame is provided with a sliding groove, the sealing frame is internally movably sleeved with an accordion cover, the accordion cover is movably sleeved with the sliding groove, one end of the accordion cover is fixedly installed on one side of the interior of the sealing frame, one side of the sealing frame is provided with a plurality of fastening holes, the inner circular wall surface of the fastening hole is movably sleeved with a second threaded column, the other end of the accordion cover is provided with a plurality of second threaded grooves, the second threaded grooves correspond to the positions of the fastening holes, and the second threaded column is threadedly connected to the second threaded groove.

[0019] By adopting the above technical solution, the accordion cover is set up, and the position of the cleaning hole can be secondary shielded by the accordion cover, thereby increasing the sealing effect of the cleaning hole. Since the accordion cover has a bendable effect, when the sealing plate is disassembled, the accordion cover can be slid to shrink it, thereby releasing the shielding of the sealing frame.

[0020] Preferably, a sealing groove is formed on the top surface of the sealing plate, and a sealing strip is fixedly installed inside the sealing groove.

[0021] By adopting the above technical solution, the sealing effect of the sealing plate on the cleaning hole is increased.

[0022] Preferably, a fixed column is fixedly mounted on the inner top surface of the bending tube, a movable tube is movably sleeved on the outer circular wall surface of the fixed column, and a plurality of blades are fixedly mounted on the outer circular wall surface of the movable tube.

[0023] By adopting the above technical solution, through the blades that are set, when the smoke flows in the smoke exhaust duct, the blades will push the movable tube to rotate. The blades will generate wind force when rotating, thereby increasing the air flow, and allowing the particles in the smoke exhaust duct to float, and then be discharged along with the smoke flow, thereby reducing the deposition of particles in the bend of the smoke exhaust duct.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] The bending tube, smoke exhaust pipe, docking frame, card frame, card slot, splicing slot, rotating column, first gear, limiting strip, card teeth, rotating column, operating hole, movable column, second gear and rack are used in coordination with each other, and the limiting strip and the card teeth are rotated by the locking component. At this time, one end of the limiting strip rotates around the rotating column, and then the limiting strip with the card tooth end rotates downward, and then the card tooth is stuck in the tooth groove of the first gear, thereby limiting the rotation of the first gear. At this time, the rack moves deep into the interior of the docking frame and pulls the first gear and the limiting strip to drive the card slot and the smoke exhaust pipe to move, so as to facilitate the card slot to be stuck in the interior of the card slot to assemble and splice the bending tube and the smoke exhaust pipe. Since the first gear is restricted by the card teeth and cannot rotate, and the limiting component limits the movement of the rack, the bending tube and the smoke exhaust pipe can be locked together. Since the smoke exhaust pipe and the card slot frame are stuck in the inside of the card slot, the assembled smoke exhaust duct can be prevented from being separated after the assembly bolts of the smoke exhaust duct fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the smoke exhaust pipe structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the card connection frame structure of the present invention;

[0029] Figure 4 yes Figure 3 Schematic diagram of the local structure of A;

[0030] Figure 5 It is a schematic diagram of the restriction strip structure of the present invention;

[0031] Figure 6 It is a schematic diagram of the docking frame structure of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the card slot of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the operating wheel of the present invention;

[0034] Fig. 9 yes Figure 7 Schematic diagram of the local structure of B;

[0035] Fig.10 It is a schematic diagram of the rack structure of the present invention;

[0036] Fig.11 It is a schematic diagram of the installation shell structure of the present invention;

[0037] Fig.12 It is a schematic diagram of the operation tank structure of the present invention;

[0038] Fig.13 is a schematic diagram of the structure of the mobile tube of the present invention;

[0039] Fig.14 is a schematic diagram of the structure of the rotating wheel of the present invention;

[0040] Fig.15 It is a schematic diagram of the sealing frame structure of the present invention;

[0041] Fig.16 It is a schematic diagram of the structure of the accordion cover of the present invention;

[0042] Fig.17 It is a schematic diagram of the sealing plate structure of the present invention;

[0043] Fig.18 It is a schematic diagram of the fixed column structure of the present invention.

[0044] Figure numerals: 1, bending pipe; 2, smoke exhaust pipe; 3, docking frame; 4, snap-on frame; 5, splicing groove; 6, rotating column; 7, first gear; 8, limiting strip; 9, snap-on teeth; 10, rotating hole; 11, rotating column; 12, operating hole; 13, limiting groove; 14, operating wheel; 15, movable column; 16, limiting ring; 17, second gear; 18, snap-on groove; 19, reserved groove; 20, limiting block; 21, supporting column; 22, movable wheel; 23, rack; 24, stabilizing groove; 25, blade; 26, spring; 27, extrusion plate; 28, positioning column; 29, positioning groove; 30, mounting shell; 31, mounting hole; 32, bearing; 33, worm; 34, movable Movable hole; 35, screw rod; 36, worm gear; 37, operating groove; 38, blocking plate; 39, supporting groove; 40, moving tube; 41, lifting plate; 42, clamping plate; 43, moving hole; 44, installation groove; 45, positioning plate; 46, limiting groove; 47, sliding hole; 48, rotating wheel; 49, sliding column; 50, nut; 51, sealing frame; 52, cleaning hole; 53, blocking frame; 54, threaded hole; 55, sealing plate; 56, fixing hole; 57, first threaded column; 58, sliding groove; 59, accordion cover; 60, fastening hole; 61, second threaded column; 62, second threaded groove; 63, sealing groove; 64, sealing strip; 65, fixing column; 66, movable tube. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10A prefabricated steel heat-insulated smoke exhaust duct comprises a bent pipe 1, smoke exhaust pipes 2 are respectively arranged at both ends of the bent pipe 1, two docking frames 3 are fixedly sleeved on the outside of the bent pipe 1, a clamping groove 18 is provided on one side of the docking frame 3, an assembly component is provided on the outside of the smoke exhaust pipe 2 for assembling and splicing the smoke exhaust pipe 2 and the bent pipe 1, the assembly component comprises two clamping frames 4, the two clamping frames 4 are respectively fixedly sleeved on the outside of the two smoke exhaust pipes 2, the clamping frames 4 are movably clamped with the clamping groove 18, splicing grooves 5 are respectively provided on both sides of the clamping frames 4, a rotating column 6 is fixedly installed on one side of the inside of the splicing groove 5, a first gear 7 is movably sleeved on the outer circumferential wall of the rotating column 6, a limiting strip 8 is provided inside the splicing groove 5, and a limiting strip 8 is fixedly installed on the inner circumferential wall of the limiting strip 8 A plurality of engaging teeth 9 are movably engaged with the tooth groove of the first gear 7. A rotating hole 10 is provided on one side of the limiting strip 8. A rotating column 11 is fixedly installed on one side of the inner side of the splicing groove 5. The rotating column 11 is movably sleeved with the rotating hole 10. Operation holes 12 are respectively provided on both sides of the docking frame 3. A limiting groove 13 is provided on the inner circumferential wall surface of the operating hole 12. A movable column 15 is movably sleeved on the inner circumferential wall surface of the operating hole 12. A limiting ring 16 is fixedly sleeved on the outer circumferential wall surface of the movable column 15. The rotating column 6 is movably sleeved with the limiting groove 13. A second gear 17 is fixedly installed on one end of the movable column 15. Two racks 23 are provided inside the docking frame 3. The racks 23 are meshed and connected with the second gear 17. A device for moving the rack 23 is provided on one side of the inner side of the engaging groove 18. An operating component is provided, a locking component for limiting the limiting bar 8 is provided on one side of the interior of the splicing groove 5, and a limiting component for preventing the second gear 17 from rotating is provided on the top surface of the docking frame 3. Through the provided rack 23, when the staff assembles the smoke exhaust duct, they first move the bending pipe 1 and the clamping frame 4 and put them into the interior of the docking frame 3, so that the clamping frame 4 is clamped into the interior of the clamping groove 18. When the clamping frame 4 enters the interior of the clamping groove 18, the rack 23 is allowed to enter the interior of the splicing groove 5, and then the rack 23 will approach the first gear 7 and mesh with the first gear 7, and then under the continuous push of the smoke exhaust pipe 2 and the clamping frame 4, the rack 23 meshes with the first gear 7 to cause the first gear 7 to rotate, and when the rack 23 reaches one side of the interior of the splicing groove 5, it will touch the lock. The fixed component will cause the limiting strip 8 and the engaging tooth 9 to rotate through the locking component. At this time, one end of the limiting strip 8 will rotate around the rotating column 11, and then the limiting strip 8 with the engaging tooth 9 end will rotate downward, and then the engaging tooth 9 will be stuck in the tooth groove of the first gear 7, thereby limiting the rotation of the first gear 7. At this time, the second gear 17 is driven to rotate by rotating the movable column 15, and then the second gear 17 will mesh and drive the rack 23 to move during rotation. The rack 23 moves deep into the interior of the docking frame 3 and pulls the first gear 7 and the limiting strip 8 to drive the engaging frame 4 and the smoke exhaust pipe 2 to move, thereby making it easy for the engaging frame 4 to be stuck in the engaging groove 18 to assemble and splice the bending pipe 1 and the smoke exhaust pipe 2. Since the first gear 7 is restricted by the engaging tooth 9 and cannot rotate,The limiting assembly will limit the movement of the rack 23, so that the bent pipe 1 and the smoke exhaust pipe 2 can be locked together. Since the smoke exhaust pipe 2 and the clamping frame 4 are clamped inside the clamping groove 18, it can prevent the assembled smoke exhaust pipe from being separated after the assembly bolts of the smoke exhaust pipe fall off, because the bent pipe 1 and the smoke exhaust pipe 2 need to move in opposite directions to separate.

[0047] Embodiment 2: Based on the above embodiment 1, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10The operating assembly includes a plurality of reserved grooves 19, which are respectively arranged on one side of the inside of the two clamping grooves 18, each of which has two reserved grooves 19 on one side of the inside of the clamping groove 18, a rack 23 is movably sleeved with the reserved groove 19, a limit block 20 is fixedly installed on the inner bottom surface of the reserved groove 19, support columns 21 are respectively fixedly installed on both sides of the limit block 20, and a movable wheel 22 is movably sleeved on the outer circumferential wall surface of the support column 21, a stabilizing groove 24 is arranged on the bottom surface of the rack 23, and the stabilizing groove 24 is movably sleeved with the limit block 20, and the movable column 1 An operating wheel 14 is fixedly installed at one end of the 5. Through the operating wheel 14, the staff rotates the operating wheel 14 to drive the movable column 15, the limiting ring 16 and the second gear 17 to rotate, and then the rotation of the second gear 17 will mesh and drive the rack 23 to move. Since the limiting block 20 and the movable wheel 22 are inside the stable groove 24, when the rack 23 moves, the movable wheel 22 will move and rotate along the inner wall of the stable groove 24, so as to facilitate the stable limiting movement of the rack 23. The locking assembly includes a plurality of springs 26, a plurality of The springs 26 are fixedly mounted on one side of the inner part of the plurality of splicing grooves 5, respectively. An extrusion plate 27 is fixedly mounted on one end of the spring 26, and a positioning column 28 is fixedly mounted on one side of the extrusion plate 27. The outer circumferential wall surface of the limiting strip 8 is provided with a plurality of positioning grooves 29, and the positioning column 28 is movably connected with the positioning groove 29. Through the blades 25, when the rack 23 enters the interior of the splicing groove 5 and reaches the inner vertex of the splicing groove 5, the rack 23 will squeeze the extrusion plate 27 and compress the spring 26 to drive the positioning column 28 to move, so that the positioning column 29 can be moved. 8 is moved out of the interior of the positioning groove 29 to release the restriction on the restriction bar 8, so that the restriction bar 8 and the engaging tooth 9 can fall and rotate and make the engaging tooth 9 engage in the tooth groove of the first gear 7. When it is necessary to separate the bending tube 1 and the smoke exhaust pipe 2, the rack 23 pushes the engaging frame 4 and the smoke exhaust pipe 2 to move by rotating the second gear 17, so that part of the splicing groove 5 can be moved out of the interior of the docking frame 3, and then the restriction bar 8 and the engaging tooth 9 are manually pushed upward to release the restriction on the first gear 7, thereby facilitating the separation of the bending tube 1 and the smoke exhaust pipe 2.

[0048] Embodiment 3: Based on the above embodiment 1 or 2, refer to Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig.11 , Fig.12 , Fig.13 and Fig.14The limiting component includes a plurality of movable holes 34, which are respectively provided on the top surfaces of the two docking frames 3. The inner circumferential wall surface of the movable hole 34 is movably sleeved with a screw rod 35, and a worm gear 36 is fixedly installed on the top surface of the screw rod 35. Operation grooves 37 are respectively provided on both sides of the docking frame 3. The operation groove 37 is connected with the movable hole 34. A blocking plate 38 is fixedly installed inside the operation groove 37. A supporting groove 39 is provided on the inner bottom surface of the operation groove 37. The screw rod 35 is movably sleeved with the supporting groove 39. A moving hole 43 is provided on the inner bottom surface of the operation groove 37. A moving tube 40 is threadedly connected to the outer circumferential wall surface of the screw rod 35. A threaded The outer circumferential wall of the movable tube 40 is fixedly mounted with a lifting plate 41, and the bottom surface of the lifting plate 41 is fixedly mounted with a clamping plate 42. The outer circumferential wall of the operating wheel 14 is provided with a plurality of limiting grooves 46. The clamping plate 42 passes through the moving hole 43 and is movably connected with the limiting groove 46. The outer circumferential wall of the movable tube 40 is fixedly mounted with two positioning plates 45. The inner sides of the operating groove 37 are respectively provided with mounting grooves 44. The positioning plates 45 are movably connected with the mounting grooves 44. Through the provided clamping plate 42, when the bending tube 1 and the smoke exhaust pipe 2 are spliced ​​and assembled, the movable tube 40, the positioning plate 45, the lifting plate 41 and the clamping plate 42 are moved downward by rotating the screw rod 35. The clamping plate 42 can pass through the moving hole 43 and enter the interior of the limiting groove 46, so as to facilitate the restriction of the operating wheel 14 and prevent the operating wheel 14 and the second gear 17 from rotating after the bending pipe 1 and the smoke exhaust pipe 2 are assembled and spliced. The top surface of the docking frame 3 is fixedly installed with a mounting shell 30, and the inner two sides of the mounting shell 30 are respectively provided with mounting holes 31. The inner circular wall surface of the mounting hole 31 is fixedly sleeved with a bearing 32, and the inner circular wall surfaces of the inner rings of the two bearings 32 are fixedly sleeved with a worm 33. The worm 33 is meshed and connected with the worm wheel 36. The outer circular wall surface of the worm 33 is provided with two sliding holes 47, and the outer circular wall surface of the worm 33 is movably sleeved with two rotating wheels 48. A sliding column 49 is fixedly installed on the inner circular wall surface of the wheel 48, and the sliding column 49 is movably connected to the sliding hole 47. A thread is provided on the outer circular wall surface of the worm 33, and a nut 50 is threadedly connected to the outer circular wall surface of the worm 33. The worm 33 is driven to rotate by rotating the rotating wheel 48, so that the worm 33 can be meshed to drive the worm wheel 36 to rotate, and then the worm wheel 36 can drive the lead screw 35 to rotate. Since the worm 33 can simultaneously drive the two worm wheels 36 and the lead screw 35 to rotate, it is convenient to allow the two moving tubes 40, the lifting plate 41 and the clamping plate 42 on the single docking frame 3 to descend at the same time to synchronously limit the two operating wheels 14.

[0049] Embodiment 4: Based on the above embodiment 1, 2 or 3, reference Figure 1 , Figure 7 , Fig.15 , Fig.16 , Fig.17 and Fig.18A sealing frame 51 is fixedly installed on the bottom surface of the bent pipe 1, a cleaning hole 52 is provided on the bottom surface of the bent pipe 1, a blocking frame 53 is fixedly sleeved inside the cleaning hole 52, a plurality of threaded holes 54 are provided on the bottom surface of the blocking frame 53, a sealing plate 55 is movably sleeved inside the cleaning hole 52, a plurality of fixing holes 56 are provided on the bottom surface of the sealing plate 55, the fixing holes 56 correspond to the positions of the threaded holes 54, a first threaded column 57 is movably sleeved on the inner wall surface of the fixing hole 56, the first threaded column 57 is threadedly connected with the threaded hole 54, and the sealing plate 55 is provided, because the bend in the smoke exhaust duct will hinder the airflow, increase the local resistance, and cause the airflow speed to slow down This deceleration makes it easier for particles in the smoke to settle at the bend, so the smoke exhaust duct needs to be disassembled for cleaning. Then, by loosening the first threaded column 57 and moving it out of the threaded hole 54 and the fixing hole 56, the restriction on the sealing plate 55 can be released, and then the sealing plate 55 is moved out of the cleaning hole 52 to remove the obstruction of the cleaning hole 52, so that it is convenient for the staff to directly clean the inside of the bend of the smoke exhaust duct. The inner wall of the sealing frame 51 is provided with a sliding groove 58, and the interior of the sealing frame 51 is movably sleeved with an accordion cover 59, which is movably sleeved with the sliding groove 58, and one end of the accordion cover 59 is movably sleeved with the inner wall of the sealing frame 51. The accordion cover 59 is fixedly installed on one side of the sealing frame 51, and a plurality of fastening holes 60 are opened on one side of the sealing frame 51. The inner wall surface of the fastening hole 60 is movably sleeved with a second threaded column 61. The other end of the accordion cover 59 is opened with a plurality of second threaded grooves 62. The second threaded grooves 62 correspond to the positions of the fastening holes 60. The second threaded column 61 is threadedly connected with the second threaded grooves 62. By setting the accordion cover 59, the position of the cleaning hole 52 can be secondary blocked by the accordion cover 59 to increase the sealing effect of the cleaning hole 52. Since the accordion cover 59 has a bendable effect, when the sealing plate 55 is disassembled, the sealing frame 51 can be released by sliding the accordion cover 59 to shrink it. A sealing groove 63 is provided on the top surface of the sealing plate 55, a sealing strip 64 is fixedly installed inside the sealing groove 63, a fixing column 65 is fixedly installed on the inner top surface of the bent tube 1, a movable tube 66 is movably sleeved on the outer circumferential wall of the fixing column 65, a plurality of blades 25 are fixedly installed on the outer circumferential wall of the movable tube 66, and when the smoke flows in the smoke exhaust duct, the blades 25 are set, which pushes the blades 25 to drive the movable tube 66 to rotate, and the blades 25 generate wind force when rotating, thereby increasing the air flow, and allowing the particulate matter in the smoke exhaust duct to float, and then discharge it along with the smoke flow, thereby reducing the deposition of particulate matter in the bend of the smoke exhaust duct.

[0050] Working principle: Please refer to Figure 1-Figure 18As shown, through the provided rack 23, when the staff assembles the smoke exhaust duct, they first move the bending tube 1 and the clamping frame 4 and put them into the interior of the docking frame 3, so that the clamping frame 4 is clamped into the interior of the clamping groove 18. When the clamping frame 4 enters the interior of the clamping groove 18, the rack 23 enters the interior of the splicing groove 5, and then the rack 23 will approach the first gear 7 and mesh with the first gear 7. Then, under the continuous push of the smoke exhaust pipe 2 and the clamping frame 4, the meshing of the rack 23 and the first gear 7 will cause the first gear 7 to rotate. When the rack 23 reaches one side of the interior of the splicing groove 5, it will touch the locking component, and the locking component will cause the limiting bar 8 and the clamping tooth 9 to rotate. At this time, one end of the limiting bar 8 will rotate around the rotating column 11, and then the limiting bar 8 with the clamping tooth 9 end will rotate downward, and then the clamping tooth 9 will be clamped into the tooth groove of the first gear 7, thereby limiting The rotation of the first gear 7 is controlled. At this time, the second gear 17 is driven to rotate by rotating the movable column 15, and then the second gear 17 will mesh and drive the rack 23 to move during rotation. The rack 23 moves deep into the interior of the docking frame 3 and pulls the first gear 7 and the limiting bar 8 to drive the clamping frame 4 and the smoke exhaust pipe 2 to move, so that it is convenient to clamp the clamping frame 4 into the inside of the clamping groove 18 to assemble and splice the bent pipe 1 and the smoke exhaust pipe 2. Since the first gear 7 is restricted by the clamping tooth 9 and cannot rotate, and the limiting component limits the movement of the rack 23, the bent pipe 1 and the smoke exhaust pipe 2 can be locked together. Since the smoke exhaust pipe 2 and the clamping frame 4 are clamped in the inside of the clamping groove 18, the assembly bolts of the smoke exhaust duct can be prevented from falling off and the assembled smoke exhaust duct can be prevented from being separated, because the bent pipe 1 and the smoke exhaust pipe 2 need to move in opposite directions to be separated.

[0051] Through the provided operating wheel 14, the staff drives the movable column 15, the limiting ring 16 and the second gear 17 to rotate by rotating the operating wheel 14, and then the rotation of the second gear 17 will engage and drive the rack 23 to move. Since the limiting block 20 and the movable wheel 22 are inside the stable groove 24, when the rack 23 moves, the movable wheel 22 will move along the inner wall of the stable groove 24 and rotate, thereby facilitating the stable limiting movement of the rack 23.

[0052] Through the blade 25, when the rack 23 enters the interior of the splicing groove 5 and reaches the internal apex of the splicing groove 5, the rack 23 will squeeze the extrusion plate 27 and compress the spring 26 to drive the positioning column 28 to move, so that the positioning column 28 can be moved out of the interior of the positioning groove 29 to release the restriction on the limiting bar 8, and then the limiting bar 8 and the engaging tooth 9 can be made to fall and rotate and the engaging tooth 9 can be engaged in the tooth groove of the first gear 7. When it is necessary to separate the bending pipe 1 and the smoke exhaust pipe 2, the rack 23 can push the engaging frame 4 and the smoke exhaust pipe 2 to move by rotating the second gear 17, so that part of the splicing groove 5 can be moved out of the interior of the docking frame 3, and then the limiting bar 8 and the engaging tooth 9 are manually pushed upward to release the restriction on the first gear 7, thereby facilitating the separation of the bending pipe 1 and the smoke exhaust pipe 2.

[0053] By setting the clamping plate 42, when the bending tube 1 and the smoke exhaust pipe 2 are spliced ​​and assembled, the movable tube 40, the positioning plate 45, the lifting plate 41 and the clamping plate 42 are moved downward by rotating the screw rod 35, so that the clamping plate 42 can pass through the moving hole 43 and enter the interior of the limiting groove 46, thereby facilitating the restriction of the operating wheel 14 and preventing the operating wheel 14 and the second gear 17 from rotating after the bending tube 1 and the smoke exhaust pipe 2 are assembled and spliced.

[0054] By setting the sealing plate 55, the bend in the smoke exhaust duct will hinder the airflow, increase the local resistance, and cause the airflow speed to slow down. This deceleration makes it easier for particulate matter in the smoke to deposit at the bend, so that the smoke exhaust duct needs to be disassembled for cleaning, and then the restriction on the sealing plate 55 can be released by loosening the first threaded column 57 and moving it out of the threaded hole 54 and the fixing hole 56, and then moving the sealing plate 55 out of the cleaning hole 52 can remove the obstruction of the cleaning hole 52, so that the staff can directly clean the inside of the bend of the smoke exhaust duct.

[0055] By setting the blades 25, when the smoke flows in the smoke exhaust duct, the blades 25 will be pushed to drive the movable tube 66 to rotate. The blades 25 will generate wind force when rotating, thereby increasing the air flow and allowing the particles in the smoke exhaust duct to float, and then be discharged along with the smoke flow, thereby reducing the deposition of particles in the bend of the smoke exhaust duct.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated steel heat-insulated smoke exhaust duct, characterized in that: include: A curved pipe (1), with smoke exhaust pipes (2) respectively arranged at both ends of the curved pipe (1), two docking frames (3) being fixedly sleeved on the outside of the curved pipe (1), and a clamping groove (18) being provided on one side of the docking frame (3); An assembly component is arranged outside the smoke exhaust pipe (2) and is used to assemble and splice the smoke exhaust pipe (2) and the bent pipe (1), the assembly component comprising: two clamping frames (4), the two clamping frames (4) are respectively fixedly sleeved on the outside of the two smoke exhaust pipes (2), the clamping frames (4) are movably clamped with the clamping grooves (18), two sides of the clamping frames (4) are respectively provided with splicing grooves (5), a rotating column (6) is fixedly installed on one side of the interior of the splicing groove (5), a first gear (7) is movably sleeved on the outer circular wall surface of the rotating column (6), a limiting strip (8) is arranged inside the splicing groove (5), a plurality of clamping teeth (9) are fixedly installed on the inner circular wall surface of the limiting strip (8), the clamping teeth (9) are movably clamped with the tooth grooves of the first gear (7), and the A rotating hole (10) is provided on one side of the limiting strip (8), a rotating column (11) is fixedly installed on one side of the interior of the splicing groove (5), and the rotating column (11) is movably sleeved with the rotating hole (10). Operation holes (12) are respectively provided on two sides of the docking frame (3), and a limiting groove (13) is provided on the inner circumferential wall surface of the operating hole (12). A movable column (15) is movably sleeved on the inner circumferential wall surface of the operating hole (12), and a limiting ring (16) is fixedly sleeved on the outer circumferential wall surface of the movable column (15), the rotating column (6) is movably sleeved with the limiting groove (13), and a second gear (17) is fixedly installed on one end of the movable column (15), and two racks (23) are provided inside the docking frame (3), and the racks (23) are meshingly connected with the second gear (17); An operating component for moving the rack (23) is provided on one side of the interior of the clamping groove (18); A locking component for restricting the restriction strip (8) is provided on one side of the interior of the splicing groove (5); A limiting component for preventing the second gear (17) from rotating is provided on the top surface of the docking frame (3); A plurality of reserved grooves (19), wherein the plurality of reserved grooves (19) are respectively arranged on one side of the interior of the two clamping grooves (18), and each of the clamping grooves (18) has two reserved grooves (19) on one side of the interior, the rack (23) is movably sleeved with the reserved groove (19), a limit block (20) is fixedly installed on the inner bottom surface of the reserved groove (19), support columns (21) are respectively fixedly installed on both sides of the limit block (20), a movable wheel (22) is movably sleeved on the outer circular wall surface of the support column (21), a stabilizing groove (24) is arranged on the bottom surface of the rack (23), and the stabilizing groove (24) is movably sleeved with the limit block (20), and an operating wheel (14) is fixedly installed on one end of the movable column (15); A plurality of springs (26) are respectively fixedly mounted on one side of the interior of the plurality of splicing grooves (5); an extrusion plate (27) is fixedly mounted on one end of the spring (26); a positioning column (28) is fixedly mounted on one side of the extrusion plate (27); a plurality of positioning grooves (29) are formed on the outer circular wall surface of the limiting strip (8); and the positioning column (28) is movably sleeved with the positioning groove (29).

2. The assembled steel heat-insulated smoke exhaust duct according to claim 1 is characterized in that: The restriction components include: A plurality of movable holes (34) are respectively provided on the top surfaces of the two docking frames (3); a screw rod (35) is movably sleeved on the inner circular wall surface of the movable hole (34); a worm wheel (36) is fixedly mounted on the top surface of the screw rod (35); operating grooves (37) are respectively provided on both sides of the docking frame (3); the operating grooves (37) are communicated with the movable holes (34); a blocking plate (38) is fixedly mounted inside the operating grooves (37); a supporting groove (39) is provided on the inner bottom surface of the operating grooves (37); the screw rod (35) is movably sleeved on the supporting groove (39); a moving hole (43) is provided on the inner bottom surface of the operating grooves (37); the screw rod The outer circular wall surface of the movable tube (35) is threadedly connected to a movable tube (40), the inner circular wall surface of the movable tube (40) is provided with a thread, the outer circular wall surface of the movable tube (40) is fixedly mounted with a lifting plate (41), the bottom surface of the lifting plate (41) is fixedly mounted with a clamping plate (42), the outer circular wall surface of the operating wheel (14) is provided with a plurality of limiting grooves (46), the clamping plate (42) passes through the movable hole (43) and is movably connected with the limiting groove (46), the outer circular wall surface of the movable tube (40) is fixedly mounted with two positioning plates (45), the inner sides of the operating groove (37) are respectively provided with mounting grooves (44), and the positioning plates (45) are movably connected with the mounting grooves (44).

3. The assembled steel heat-insulated smoke exhaust duct according to claim 2 is characterized in that: A mounting shell (30) is fixedly mounted on the top surface of the docking frame (3), mounting holes (31) are respectively provided on both sides of the interior of the mounting shell (30), a bearing (32) is fixedly sleeved on the inner circumferential wall surface of the mounting hole (31), a worm (33) is fixedly sleeved on the inner circumferential wall surfaces of the inner rings of the two bearings (32), the worm (33) is meshingly connected with the worm wheel (36), two sliding holes (47) are provided on the outer circumferential wall surface of the worm (33), two rotating wheels (48) are movably sleeved on the outer circumferential wall surface of the worm (33), a sliding column (49) is fixedly mounted on the inner circumferential wall surface of the rotating wheel (48), the sliding column (49) is movably sleeved on the sliding hole (47), a thread is provided on the outer circumferential wall surface of the worm (33), and a nut (50) is threadedly connected to the outer circumferential wall surface of the worm (33).

4. The assembled steel heat-insulated smoke exhaust duct according to claim 1 is characterized in that: A sealing frame (51) is fixedly mounted on the bottom surface of the bending tube (1); a cleaning hole (52) is provided on the bottom surface of the bending tube (1); a blocking frame (53) is fixedly sleeved inside the cleaning hole (52); a plurality of threaded holes (54) are provided on the bottom surface of the blocking frame (53); a sealing plate (55) is movably sleeved inside the cleaning hole (52); a plurality of fixing holes (56) are provided on the bottom surface of the sealing plate (55); the fixing holes (56) correspond to the positions of the threaded holes (54); a first threaded column (57) is movably sleeved on the inner circular wall surface of the fixing hole (56); and the first threaded column (57) is threadedly connected to the threaded hole (54).

5. The assembled steel heat-insulated smoke exhaust duct according to claim 4 is characterized in that: The inner wall of the sealing frame (51) is provided with a sliding groove (58), the interior of the sealing frame (51) is movably sleeved with an accordion cover (59), the accordion cover (59) is movably sleeved with the sliding groove (58), one end of the accordion cover (59) is fixedly installed with one side of the interior of the sealing frame (51), one side of the sealing frame (51) is provided with a plurality of fastening holes (60), the inner circular wall surface of the fastening hole (60) is movably sleeved with a second threaded column (61), the other end of the accordion cover (59) is provided with a plurality of second threaded grooves (62), the second threaded grooves (62) correspond to the positions of the fastening holes (60), and the second threaded column (61) is threadedly connected with the second threaded groove (62).

6. The assembled steel heat-insulated smoke exhaust duct according to claim 4 is characterized in that: A sealing groove (63) is formed on the top surface of the sealing plate (55), and a sealing strip (64) is fixedly installed inside the sealing groove (63).

7. The assembled steel heat-insulated smoke exhaust duct according to claim 1 is characterized in that: A fixed column (65) is fixedly mounted on the inner top surface of the curved tube (1); a movable tube (66) is movably sleeved on the outer circular wall surface of the fixed column (65); and a plurality of blades (25) are fixedly mounted on the outer circular wall surface of the movable tube (66).

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