An assembled smoke exhaust duct installation structure
Patent Information
- Application Number
- CN202522662629.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-16
AI Technical Summary
The existing smoke exhaust duct installation structure is difficult for a single person to complete efficiently, especially when installing at heights, the connection is difficult and costly.
The device employs a docking mechanism, including a connecting frame, groove, slot, hinge, baffle, and first and second connecting plates. Pre-positioning is achieved through the cooperation of inserts and slots, and the baffle position is fixed by the cooperation of protrusions, locking blocks, and springs, simplifying the installation process for a single person.
It reduces the difficulty of docking during high-altitude installation, enables rapid installation by a single person, and improves installation stability and sealing performance.
Smart Images

Figure CN224931321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoke exhaust duct technology, and in particular to an assembled smoke exhaust duct installation structure. Background Technology
[0002] Exhaust ducts refer to the channels inside chimneys that deliver flames and smoke to the outside space, or pipe products used to remove fumes generated during kitchen cooking activities and foul air from bathrooms. They are also called ventilation ducts, air ducts, residential exhaust ducts, etc., and are a major component of the shared exhaust duct system for residential kitchens and bathrooms. They are widely used in the construction and industrial fields.
[0003] Existing smoke exhaust duct installation structures are usually completed by flange connection. Smoke exhaust ducts fixed in this way have high strength, but most indoor smoke exhaust ducts are installed in high positions. When workers operate, they need to lift the smoke exhaust duct, align the mounting holes on the flange, and install bolts. This makes the installation difficult and difficult to complete when operated by a single person. If two people operate, it will increase the labor cost.
[0004] Therefore, how to provide a prefabricated smoke exhaust duct installation structure is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] One objective of this invention is to provide a prefabricated smoke exhaust duct installation structure. The docking mechanism allows for pre-positioning of two smoke exhaust ducts during docking. Operation simply involves inserting one docking plate into the connecting frame and then fixing the other docking plate onto the installed connecting frame, significantly reducing the difficulty of docking during high-altitude installation. Furthermore, installation can be performed by a single person. The cooperation between protrusions, locking blocks, and springs secures the position of the baffle, preventing the docking plate from sliding after insertion, thus solving the problems mentioned in the background section.
[0006] According to an embodiment of the present utility model, a prefabricated smoke exhaust duct installation structure includes a smoke exhaust duct body, a docking plate fixedly connected to the left and right ends of the smoke exhaust duct body, a pair of inserts fixedly connected to the side wall of the docking plate, and a docking mechanism provided on the docking plate. The docking mechanism includes: a connecting frame, a groove, a slot, a hinge, a baffle, a first connecting plate, and a second connecting plate. The groove is disposed inside the connecting frame, the slot is disposed inside the connecting frame, the hinge is fixedly connected to the upper end of the connecting frame, the baffle is fixedly connected to the hinge, the first connecting plate is fixedly connected to the left and right surfaces of the connecting frame, and the second connecting plate is fixedly connected to the left and right surfaces of the baffle.
[0007] As a preferred embodiment of this utility model: both the first connecting plate and the second connecting plate are provided with mounting holes, and bolts are provided inside the mounting holes. The first connecting plate and the second connecting plate are fixedly connected by bolts.
[0008] As a further preferred embodiment of this utility model: the inner surface of the groove is adapted to the mating plate, and the inner surface of the slot is adapted to the insert block.
[0009] As a further preferred embodiment of this utility model: a first sealing strip is fixedly connected to the inner surface of the groove, and a second sealing strip is fixedly connected to the rear surface of the baffle.
[0010] As a further preferred embodiment of this utility model: a positioning block is fixedly connected to the lower surface of the connecting frame, a slot is provided inside the positioning block, a sliding groove is provided inside the positioning block, a locking block is slidably connected to the inner surface of the sliding groove, a pull rod is fixedly connected to the lower end of the locking block, and a spring is provided on the surface of the pull rod.
[0011] As a further preferred embodiment of this utility model: a protrusion is fixedly connected to the lower surface of the connecting frame, the inner surface of the slot is adapted to the card block, and the rear surface of the card block is in contact with the protrusion.
[0012] As a further preferred embodiment of this utility model: the upper end of the spring is fixedly connected to the locking block, and the lower end of the spring is fixedly connected to the bottom of the groove.
[0013] As a further preferred embodiment of this utility model, the interior of the positioning block is slidably connected to the pull rod.
[0014] The beneficial effects of this utility model are: The docking mechanism allows for pre-positioning of two exhaust pipes during connection. Operation simply involves inserting one docking plate into the connecting frame and then fixing the other docking plate onto the installed frame, significantly reducing the difficulty of docking at heights. Installation can be performed by a single person. The interplay of protrusions, locking blocks, and springs secures the baffle, preventing slippage after insertion and ensuring stability during bolt installation. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a prefabricated smoke exhaust duct installation structure proposed in this utility model.
[0016] Figure 2 This is a cross-sectional view of the overall structure of an assembled smoke exhaust duct installation structure proposed in this utility model.
[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A Figure 4 This is a partial structural diagram of an assembled smoke exhaust duct installation structure proposed in this utility model.
[0018] Figure 5 This is a partial structural cross-sectional view of an assembled smoke exhaust duct installation structure proposed in this utility model.
[0019] The attached diagram shows: 1. Exhaust duct body; 2. Connecting plate; 3. Insert block; 4. Connecting frame; 5. Groove; 6. Slot; 7. Hinge; 8. Baffle; 9. First connecting plate; 10. Second connecting plate; 11. Mounting hole; 12. Bolt; 13. Positioning block; 14. Slot; 15. Slide groove; 16. Locking block; 17. Pull rod; 18. Spring; 19. Protrusion; 20. First sealing strip; 21. Second sealing strip. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0021] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, the system includes a smoke exhaust duct body 1, with a connecting plate 2 fixedly connected to both the left and right ends of the smoke exhaust duct body 1. A pair of insert blocks 3 are fixedly connected to the side walls of the connecting plate 2, and a connecting mechanism is provided on the connecting plate 2. The connecting mechanism includes: a connecting frame 4, a groove 5, a slot 6, a hinge 7, a baffle 8, a first connecting plate 9, and a second connecting plate 10. The groove 5 is located inside the connecting frame 4, and the slot 6 is located inside the connecting frame 4. Both the slot 6 and the insert blocks 3 are isosceles trapezoids, which restricts the position of the connecting plate 2 after it is inserted, preventing the first connecting plate 2 from sliding arbitrarily inside the groove 5 when the second connecting plate 2 is inserted. The hinge 7... The first connecting plate 9 is fixedly connected to the left and right surfaces of the connecting frame 4, and the second connecting plate 10 is fixedly connected to the left and right surfaces of the baffle 8. The first connecting plate 9 and the second connecting plate 10 are both provided with mounting holes 11 inside, and bolts 12 are provided inside the mounting holes 11. The first connecting plate 9 and the second connecting plate 10 are fixedly connected by bolts 12. The inner surface of the groove 5 is adapted to the mating plate 2, and the inner surface of the slot 6 is adapted to the insert block 3. The inner surface of the groove 5 is fixedly connected to the first sealing strip 20, and the rear surface of the baffle 8 is fixedly connected to the second sealing strip 21.
[0022] refer to Figure 1 , Figure 2 , Figure 3 As shown, a positioning block 13 is fixedly connected to the lower surface of the connecting frame 4. A slot 14 is provided inside the positioning block 13. A sliding groove 15 is provided inside the positioning block 13. A locking block 16 is slidably connected to the inner surface of the sliding groove 15. A pull rod 17 is fixedly connected to the lower end of the locking block 16. A spring 18 is provided on the surface of the pull rod 17. A protrusion 19 is fixedly connected to the lower surface of the connecting frame 4. The inner surface of the slot 14 is adapted to the locking block 16. The rear surface of the locking block 16 is in contact with the protrusion 19. The upper end of the spring 18 is fixedly connected to the locking block 16. The lower end of the spring 18 is fixedly connected to the bottom of the sliding groove 15. The interior of the positioning block 13 is slidably connected to the pull rod 17.
[0023] Working principle: Align the connecting plates 2 at both ends of the exhaust pipe body 1 with the grooves 5 of the connecting frame 4, and simultaneously insert the inserts 3 on the connecting plates 2 into the slots 6 of the connecting frame 4 to achieve initial positioning of the pipe and the connecting frame 4. Rotate the baffle 8 so that the protrusion 19 presses against the locking block 16 in the positioning block 13, causing the locking block 16 to slide down along the slide groove 15 and compress the spring 18. When the baffle 8 is in contact with the end face of the connecting frame 4, the spring 18 rebounds and pushes the locking block 16 back to its original position. The locking block 16 is then engaged in the slot 14 and abuts against the protrusion 19, thus assisting in fixing the pipe from the bottom. Connect plate 2 to prevent it from loosening. At this time, the second connecting plate 10 on the baffle 8 is aligned with the first connecting plate 9 on the connecting frame 4. Insert bolts 12 into the mounting holes 11 of the first and second connecting plates and tighten them to achieve rigid fixation of the baffle 8 and the connecting frame 4. After fixing, the first sealing strip 20 inside the connecting frame 4 will fit tightly against the connecting plate 2, and the second sealing strip 21 on the rear surface of the baffle 8 will fit tightly against the end faces of the connecting frame 4 and the connecting plate 2. The double sealing strips fill the gaps to ensure the sealing performance of the smoke exhaust pipe and prevent smoke leakage.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A prefabricated smoke exhaust duct installation structure, characterized in that, include: The exhaust pipe body (1) has a connecting plate (2) fixedly connected to both the left and right ends of the exhaust pipe body (1). A pair of inserts (3) are fixedly connected to the side wall of the connecting plate (2). A connecting mechanism is provided on the connecting plate (2). The docking mechanism includes: a connecting frame (4), a groove (5), a slot (6), a hinge (7), a baffle (8), a first connecting plate (9), and a second connecting plate (10). The groove (5) is located inside the connecting frame (4), the slot (6) is located inside the connecting frame (4), the hinge (7) is fixedly connected to the upper end of the connecting frame (4), the baffle (8) is fixedly connected to the hinge (7), the first connecting plate (9) is fixedly connected to the left and right surfaces of the connecting frame (4), and the second connecting plate (10) is fixedly connected to the left and right surfaces of the baffle (8).
2. The prefabricated smoke exhaust duct installation structure according to claim 1, characterized in that, The first connecting plate (9) and the second connecting plate (10) are both provided with mounting holes (11), and bolts (12) are provided inside the mounting holes (11). The first connecting plate (9) and the second connecting plate (10) are fixedly connected by bolts (12).
3. The prefabricated smoke exhaust duct installation structure according to claim 1, characterized in that, The inner surface of the groove (5) is adapted to the mating plate (2), and the inner surface of the slot (6) is adapted to the insert (3).
4. The prefabricated smoke exhaust duct installation structure according to claim 3, characterized in that, The inner surface of the groove (5) is fixedly connected with a first sealing strip (20), and the rear surface of the baffle (8) is fixedly connected with a second sealing strip (21).
5. The prefabricated smoke exhaust duct installation structure according to claim 4, characterized in that, A positioning block (13) is fixedly connected to the lower surface of the connecting frame (4). A slot (14) is provided inside the positioning block (13). A sliding groove (15) is provided inside the positioning block (13). A locking block (16) is slidably connected to the inner surface of the sliding groove (15). A pull rod (17) is fixedly connected to the lower end of the locking block (16). A spring (18) is provided on the surface of the pull rod (17).
6. The prefabricated smoke exhaust duct installation structure according to claim 5, characterized in that, The lower surface of the connecting frame (4) is fixedly connected with a protrusion (19), the inner surface of the slot (14) is adapted to the card block (16), and the rear surface of the card block (16) is in contact with the protrusion (19).
7. The prefabricated smoke exhaust duct installation structure according to claim 6, characterized in that, The upper end of the spring (18) is fixedly connected to the locking block (16), and the lower end of the spring (18) is fixedly connected to the bottom of the groove (15).
8. The prefabricated smoke exhaust duct installation structure according to claim 7, characterized in that, The interior of the positioning block (13) is slidably connected to the pull rod (17).
