An external flue duct of a multi-layer structure

Abstract

The application discloses a multi-layer structure external hanging smoke exhaust pipeline, and relates to the field of smoke exhaust pipelines, which comprises a plurality of single modules, the top of each single module is provided with a butt joint, and the inner side of the bottom of each single module is provided with a butt joint groove; the plurality of single modules are spliced and combined from top to bottom to form an integral smoke exhaust pipeline, the butt joint in the single module located at the lower side is inserted into the butt joint groove in the single module located at the upper side, the two adjacent single modules are connected through a combination mechanism, and the two sides of each single module are provided with a supporting assembly. Through the standardized design of the single modules, the quick insertion structure of the butt joint and the butt joint groove, and the automatic locking mechanism of the corner seat, the butt joint pin and the locking groove in the combination mechanism, the positioning and locking can be completed by only inserting the butt joint groove of the upper module into the butt joint of the lower module when splicing the upper and lower modules, one person can operate, complex tools are not needed, and the assembling efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of smoke exhaust duct technology, and in particular to a multi-layer external smoke exhaust duct. Background Technology

[0002] Smoke exhaust ducts are an important component of building smoke exhaust systems and are widely used in residential, commercial, and industrial buildings.

[0003] Currently, there are still many shortcomings in the installation and use of externally mounted smoke exhaust ducts. Regarding installation and splicing, existing smoke exhaust ducts are mostly connected by bolts or welded in multiple sections. When using bolt connections, two people are usually required to operate: one to hold the duct and the other to tighten the bolts. Due to the large size and weight of the smoke exhaust ducts, this operation is extremely inconvenient. On-site welding is cumbersome, has a long construction period, and results in an excessively long overall duct after welding, making transportation and installation difficult. Furthermore, the inconvenience of disassembling and assembling the existing splicing structure directly affects the efficiency of subsequent cleaning and maintenance of the smoke exhaust ducts.

[0004] Regarding external installation, traditional external flues require the construction of the flue wall after the main structure is completed, which is a complex process and difficult to apply to mid- to high-rise buildings. Existing support structures mostly use simple bracket fixing methods, resulting in insufficient support stability and potential safety hazards in the long term. Furthermore, fasteners such as connecting bolts are constantly exposed to the elements, making them susceptible to loosening or corrosion from wind and rain, further affecting the reliability of the pipe installation.

[0005] In terms of duct functionality, traditional smoke exhaust ducts are mostly single-pipe structures with poor heat and sound insulation performance. When high-temperature flue gas passes through the duct, heat is easily conducted to the walls, which not only wastes energy but may also have an adverse effect on the building structure; the noise generated during the smoke exhaust process can also easily disturb the surrounding environment.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to provide a multi-layer external smoke exhaust duct. This smoke exhaust duct, through the standardized design of individual modules, combined with the quick-connect structure of the connector and the docking groove, and the automatic locking mechanism of the corner seat, docking pin and locking groove in the combination mechanism, allows the upper and lower modules to be assembled simply by fitting the docking groove of the upper module into the connector of the lower module to complete the positioning and locking. It can be operated by a single person without the need for complicated tools, which significantly improves the assembly efficiency. The pressure frame can simultaneously control the retraction of the four docking pins, making subsequent disassembly and maintenance convenient and quick as well.

[0008] To achieve the above objectives, the present invention provides a multi-layer external smoke exhaust duct, comprising several individual modules, wherein the top of each individual module is provided with a connector and the bottom inner side of each individual module is provided with a mating groove.

[0009] Several individual modules are spliced ​​together from top to bottom to form an integral smoke exhaust duct. The connector in the lower individual module is inserted into the docking groove in the upper individual module. Two adjacent individual modules are locked together by a combination mechanism. Support components are provided on both sides of the individual module. The support components are used to fix the individual module to the outside of the wall. The individual module adopts a multi-layer structure.

[0010] In one embodiment of the present invention, the combined mechanism includes:

[0011] The corner brackets are provided in four sets, which are respectively located at the four corner positions inside the connector. The corner brackets are provided with cavities inside.

[0012] A connecting pin, one end of which is fixedly connected to the cavity by a first spring, and the other end of which extends to the outside of the connector. The outer end of the connecting pin can retract into the cavity when pressed.

[0013] The inner wall of the docking groove is provided with a locking groove corresponding to the position of each docking pin. When two single modules are spliced ​​together, the docking pin on the lower single module is inserted into the locking groove on the upper single module.

[0014] In one embodiment of the present invention, the connecting pin adopts a wedge-shaped structure.

[0015] In one embodiment of the present invention, a wedge hole is provided at the top of the connecting pin, a pressing pin is movably inserted into the top of the corner seat, the bottom of the pressing pin is inserted into the wedge hole, and the bottom of the pressing pin adopts a wedge-shaped structure that is adapted to the wedge hole.

[0016] In one embodiment of the present invention, a pressure frame is provided on the top of the pressing pin, and the pressure frame connects the tops of the four pressing pins.

[0017] In one embodiment of the present invention, the single module includes a stainless steel shell, heat-insulating rock wool, and sound-insulating cotton. The stainless steel shell is located on the inner and outer sides of the flue to form a hollow shell structure. The heat-insulating rock wool and sound-insulating cotton are filled inside the stainless steel shell, and the heat-insulating rock wool is located on the outer side of the sound-insulating cotton, forming a multi-layer structure.

[0018] In one embodiment of the present invention, the support component includes:

[0019] The inclined bracket has an inclined structure, and its lower end is fixed to the outside of the wall by expansion bolts;

[0020] A flat bracket is horizontally positioned at the high end of the inclined bracket and is integrally formed with the inclined bracket;

[0021] The flat plate is horizontally and fully welded to the outside of the single module. The flat plate and the flat bracket are fixedly connected by connecting bolts. Based on this, the flat bracket and the flat plate can form a triangular structure with the wall.

[0022] In one embodiment of the present invention, a protective cover is detachably installed on the top of the flat plate, and side guard plates are provided at both ends of the protective cover, which can protect the connecting bolts.

[0023] In one embodiment of the present invention, a slot is provided at the bottom of the side guard plate, and a magnetic insert plate is provided at the top of the plate corresponding to the position of the slot, and the magnetic insert plate is inserted into the slot.

[0024] In one embodiment of the present invention, the side guard plate is made of metal, the magnetic insert plate and the side guard plate can be attracted to each other, the top of the cover adopts an inclined slope structure, the slope structure can effectively prevent dust and water accumulation on the top of the cover, and the attraction between the magnetic insert plate and the side guard plate can make the cover more stable and safe after installation.

[0025] Compared with existing technologies, the external smoke exhaust duct of the present invention, with its multi-layer structure, features a standardized design of individual modules, a quick-connect structure for the connectors and mating slots, and an automatic locking mechanism for the corner seats, mating pins, and locking slots in the assembly mechanism. This allows for easy positioning and locking of the upper and lower modules by simply fitting the mating slot of the upper module into the connector of the lower module during assembly. This can be done by a single person without the need for complex tools, significantly improving assembly efficiency. Furthermore, the pressure frame can simultaneously control the retraction of the four mating pins, making subsequent disassembly and maintenance equally convenient and quick. Simultaneously, the support component adopts a triangular structure formed by integrating the inclined bracket and the flat bracket. The structure features a flat plate and flat bracket fixed together with connecting bolts, forming a stable triangular support system with the wall. This effectively ensures the safety and reliability of the exhaust duct for long-term use on the outside of the wall. The cover can be detachably installed on top of the flat plate and protects the connecting bolts. The magnetic insert plate and side guard plate further enhance the stability of the cover after installation. In addition, the individual modules adopt a multi-layer structure with a stainless steel shell filled with heat-insulating rock wool and sound-insulating cotton. The heat-insulating rock wool is located on the outside of the sound-insulating cotton, giving the exhaust duct both good heat insulation and sound insulation effects. This reduces the conduction of heat from the flue gas to the wall and also reduces the transmission of noise during the exhaust process. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the overall structure of a multi-layer external smoke exhaust duct according to an embodiment of the present invention.

[0027] Figure 2 This is a structural schematic diagram of a single module in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0028] Figure 3 This is a multi-layer external smoke exhaust duct according to an embodiment of the present invention. Figure 2 Enlarged structural diagram of area A in the middle;

[0029] Figure 4 This is a schematic diagram of the installation of a combined mechanism in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the installation structure of the support component in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the cover installation structure in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the installation structure of a fixing component in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the fitting structure in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0034] Figure 9 This is a partial sectional view of an accessory in a multi-layer external smoke exhaust duct according to an embodiment of the present invention;

[0035] Figure 10 This is a cross-sectional schematic diagram of a multi-layer external smoke exhaust duct according to an embodiment of the present invention.

[0036] Reference numerals: 1. Individual module; 10. Connector; 11. Connecting groove; 12. Locking groove; 13. Stainless steel shell; 14. Thermal insulation rock wool; 15. Sound insulation cotton;

[0037] 2. Support assembly; 20. Diagonal bracket; 21. Flat bracket; 210. Connecting bolt; 22. Protective cover; 220. Side guard plate; 2200. Slot; 23. Flat plate; 230. Magnetic insert plate;

[0038] 3. Assembly mechanism; 30. Angle seat; 300. Cavity; 31. Connecting pin; 310. Wedge hole; 311. First spring; 32. Pressing pin; 33. Pressure frame;

[0039] 4. Lifting auxiliary mechanism; 40. Fixing component; 400. Lower insertion hole; 401. Side insertion hole; 41. Assembly parts; 410. Clamp; 411. Mounting base; 412. Movable pin; 413. Tie rod; 414. Lifting rod; 415. Second spring. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1 - Appendix Figure 10 The specific embodiments of the present invention will be described in detail, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0041] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0042] Example 1

[0043] like Figure 1 - Figure 10 As shown, according to a preferred embodiment of the present invention, a multi-layer external smoke exhaust duct includes several individual modules 1, with a connector 10 provided on the top of each individual module 1 and a docking groove 11 provided on the inner side of the bottom of each individual module 1.

[0044] Several individual modules 1 are spliced ​​together from top to bottom to form an overall smoke exhaust duct. The connector 10 in the lower individual module 1 is inserted into the docking groove 11 in the upper individual module 1. Two adjacent individual modules 1 are locked together by the combination mechanism 3. Support components 2 are provided on both sides of the individual module 1. The support components 2 are used to fix the individual module 1 to the outside of the wall. The individual module 1 adopts a multi-layer structure.

[0045] Working principle: The flue adopts a multi-layer structure. During installation, the flue is installed one by one from bottom to top. During the installation process, it is fixedly connected to the wall through the support component 2. When splicing, the mating groove 11 in the upper single module 1 is put into the butt joint 10 in the lower single module 1. The overall assembly process is simple and convenient.

[0046] Specifically, such as Figure 1 - Figure 4 As shown, in order to achieve the splicing of the individual modules 1, in this embodiment, the assembly mechanism 3 includes:

[0047] The corner seat 30 is provided in four sets, which are respectively located at the four corner positions inside the connector 10. The corner seat 30 has a cavity 300 inside.

[0048] The mating pin 31 has one end fixedly connected to the cavity 300 by the first spring 311, and the other end of the mating pin 31 extends to the outside of the mating joint 10. The outer end of the mating pin 31 can retract into the cavity 300 when pressed.

[0049] The inner wall of the docking groove 11 is provided with a locking groove 12 corresponding to the position of each docking pin 31. When two individual modules 1 are spliced, the docking pin 31 on the lower individual module 1 is inserted into the locking groove 12 on the upper individual module 1 to realize the splicing of the individual modules 1.

[0050] Specifically, such as Figure 1 - Figure 4 As shown, in order to facilitate the splicing of the individual modules 1, the docking pin 31 adopts a wedge-shaped structure in this embodiment.

[0051] Specifically, such as Figure 1 - Figure 4 As shown, in order to control the retraction of the connecting pin 31 when disassembling the flue, in this embodiment, a wedge hole 310 is provided on the top of the connecting pin 31, and a pressing pin 32 is movably inserted into the top of the corner seat 30. The bottom of the pressing pin 32 is inserted into the wedge hole 310. The bottom of the pressing pin 32 adopts a wedge-shaped structure that matches the wedge hole 310. Based on this, when the pressing pin 32 is pressed, the connecting pin 31 retracts into the cavity 300, thereby achieving control over the retraction of the connecting pin 31.

[0052] Specifically, such as Figure 1 - Figure 5 As shown, in order to simultaneously control the downward movement of the four docking pins 31, in this embodiment, a pressure frame 33 is provided on the top of the pressing pin 32. The pressure frame 33 connects the tops of the four pressing pins 32. Based on this, when the pressure frame 33 is pressed, the four pressing pins 32 move downward at the same time, thereby realizing the synchronous control of the four docking pins 31, which facilitates the disassembly of the flue pipe later.

[0053] Specifically, such as Figure 10 As shown, in this embodiment, the single module 1 includes a stainless steel shell 13, heat-insulating rock wool 14, and sound-insulating cotton 15. The stainless steel shell 13 is located on the inner and outer sides of the flue to form a hollow shell structure. The heat-insulating rock wool 14 and sound-insulating cotton 15 are filled inside the stainless steel shell 13, and the heat-insulating rock wool 14 is located on the outer side of the sound-insulating cotton 15, forming a multi-layer structure, so that the flue has heat insulation and sound insulation effects.

[0054] Specifically, such as Figure 5 - Figure 6 As shown, in order to realize the installation of the smoke exhaust duct, in this embodiment, the support component 2 includes:

[0055] Inclined bracket 20, the inclined bracket 20 adopts an inclined structure, and its lower end is fixed to the outside of the wall by expansion bolts;

[0056] The flat bracket 21 is horizontally set at the high end of the inclined bracket 20 and is integrally formed with the inclined bracket 20.

[0057] The flat plate 23 is horizontally and fully welded to the outside of the single module 1. The flat plate 23 and the flat bracket 21 are fixedly connected by connecting bolts 210. Based on this, the flat bracket 21 and the flat plate 23 can form a triangular structure with the wall, thereby making the support component 2 more stable, that is, the stability and safety of the smoke exhaust pipe are higher.

[0058] Specifically, such as Figure 5 - Figure 6 As shown, in order to protect the connecting bolts 210, in this embodiment, a cover 22 is detachably installed on the top of the plate 23, and side guard plates 220 are provided at both ends of the cover 22. The cover 22 can protect the connecting bolts 210.

[0059] Specifically, such as Figure 5 - Figure 6 As shown, in order to achieve the detachable installation of the cover 22, in this embodiment, the bottom of the side plate 220 is provided with a slot 2200, and the top of the plate 23 is provided with a magnetic insert plate 230 corresponding to the position of the slot 2200. The magnetic insert plate 230 is inserted into the slot 2200.

[0060] Specifically, such as Figure 5 - Figure 6 As shown, in order to improve the stability of the cover 22 after installation, in this embodiment, the side plate 220 is made of metal, the magnetic insert plate 230 and the side plate 220 can be attracted to each other, the top of the cover 22 adopts an inclined slope structure, the slope structure can effectively prevent dust and water from accumulating on the top of the cover 22, and the attraction between the magnetic insert plate 230 and the side plate 220 can make the cover 22 more stable and safe after installation.

[0061] Example 2

[0062] like Figure 7 - Figure 9 As shown, in a preferred embodiment of the present invention, a multi-layer external smoke exhaust duct is provided. To facilitate the hoisting of the smoke exhaust duct, in this embodiment, hoisting auxiliary mechanisms 4 are installed on both sides of the individual module 1. The hoisting auxiliary mechanisms 4 include:

[0063] The fastener 40 is fixedly installed on the side wall of the single module 1;

[0064] The assembly 41 is installed on the hoisting rope of the winch, and the fastener 40 and the assembly 41 are detachably connected.

[0065] Specifically, such as Figure 7 - Figure 9 As shown, in order to further facilitate the hoisting of the exhaust pipe, in this embodiment, the bottom of the fixing member 40 is provided with a triangular insertion hole 400, and the top of the mounting part 41 is provided with a clamping opening 410, so that the top of the mounting part 41 can be inserted into the interior of the insertion hole 400 from the bottom, thereby realizing a detachable connection between the fixing member 40 and the mounting part 41.

[0066] Specifically, such as Figure 7 - Figure 9 As shown, in order to ensure the safety of the smoke exhaust pipe during hoisting, in this embodiment, a side insertion hole 401 is provided at the center of the outer surface of the fixing member 40, and a mounting base 411 is installed on the outer side of the mounting accessory 41. A movable pin 412 is fixedly installed inside the mounting base 411 by a second spring 415. The movable pin 412 can be inserted into the side insertion hole 401 to achieve locking between the fixing member 40 and the mounting accessory 41.

[0067] Specifically, such as Figure 7 - Figure 9 As shown, in order to facilitate the disassembly of the accessory 41 and the hoisting of the exhaust pipe, in this embodiment, the movable pin 412 is connected to a pull rod 413 at one end inside the mounting base 411, and one end of the pull rod 413 extends to the outside of the mounting base 411. Based on this, by pulling the pull rod 413, the movable pin 412 can be controlled to retract into the mounting base 411. At this time, moving the accessory 41 downwards can separate the accessory 41 from the fixing member 40, which is convenient and quick to operate.

[0068] Specifically, such as Figure 7 - Figure 9 As shown, in order to connect the assembly 41 with the hoisting rope row of the winch, in this embodiment, two lifting rods 414 are symmetrically installed on the outer side of the assembly 41. The lifting rods 414 have a structure that is horizontal at the bottom and inclined upward at the top, and a lifting hole is provided at the top of the lifting rods 414.

[0069] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A multi-layered external smoke exhaust duct, characterized in that, It includes several individual modules (1), the top of which is provided with a connector (10), and the bottom inner side of which is provided with a docking groove (11). Several individual modules (1) are spliced ​​together from top to bottom to form an integral smoke exhaust pipe. The connector (10) in the lower individual module (1) is inserted into the docking groove (11) in the upper individual module (1). Two adjacent individual modules (1) are locked together by a combination mechanism (3). Support components (2) are provided on both sides of the individual module (1). The support components (2) are used to fix the individual module (1) on the outside of the wall. The individual module (1) adopts a multi-layer structure.

2. The multi-layer external smoke exhaust duct according to claim 1, characterized in that, The combined mechanism (3) includes: The corner seat (30) is provided in four sets, which are respectively located at the four corner positions inside the connector (10). The corner seat (30) has a cavity (300) inside. A connecting pin (31) is fixedly connected at one end to the cavity (300) by a first spring (311), and the other end of the connecting pin (31) extends to the outside of the connector (10). The outer end of the connecting pin (31) can retract into the cavity (300) when pressed. The inner wall of the docking groove (11) is provided with a locking groove (12) corresponding to the position of each docking pin (31). When two single modules (1) are spliced ​​together, the docking pin (31) on the lower single module (1) is inserted into the locking groove (12) on the upper single module (1).

3. The multi-layer external smoke exhaust duct according to claim 2, characterized in that, The connecting pin (31) adopts a wedge-shaped structure.

4. The multi-layer external smoke exhaust duct according to claim 3, characterized in that, The top of the connecting pin (31) is provided with a wedge hole (310), and the top of the corner seat (30) is movably connected with a pressing pin (32). The bottom of the pressing pin (32) is inserted into the wedge hole (310), and the bottom of the pressing pin (32) adopts a wedge-shaped structure that is compatible with the wedge hole (310).

5. The multi-layer external smoke exhaust duct according to claim 4, characterized in that, A pressure frame (33) is provided on the top of the pressing pin (32), and the pressure frame (33) connects the tops of the four pressing pins (32).

6. The multi-layer external smoke exhaust duct according to claim 1, characterized in that, The single module (1) includes a stainless steel shell (13), heat-insulating rock wool (14) and sound-insulating cotton (15). The stainless steel shell (13) is located on the inner and outer sides of the flue to form a hollow shell structure. The heat-insulating rock wool (14) and sound-insulating cotton (15) are filled inside the stainless steel shell (13), and the heat-insulating rock wool (14) is located on the outer side of the sound-insulating cotton (15) to form a multi-layer structure.

7. The multi-layer external smoke exhaust duct according to claim 1, characterized in that, The support component (2) includes: Inclined bracket (20), the inclined bracket (20) adopts an inclined structure, and its lower end is fixed to the outside of the wall by expansion bolts; A flat bracket (21) is horizontally positioned at the high end of the inclined bracket (20) and is integrally formed with the inclined bracket (20); The flat plate (23) is horizontally and fully welded to the outside of the single module (1). The flat plate (23) and the flat bracket (21) are fixedly connected by connecting bolts (210). Based on this, the flat bracket (21) and the flat plate (23) can form a triangular structure with the wall.

8. The multi-layer external smoke exhaust duct according to claim 7, characterized in that, A cover (22) is detachably installed on the top of the plate (23). Side guards (220) are provided at both ends of the cover (22). The cover (22) can protect the connecting bolts (210).

9. The multi-layer external smoke exhaust duct according to claim 1, characterized in that, The bottom of the side guard plate (220) is provided with a slot (2200), and the top of the plate (23) is provided with a magnetic insert plate (230) corresponding to the slot (2200), and the magnetic insert plate (230) is inserted into the slot (2200).

10. The multi-layer external smoke exhaust duct according to claim 9, characterized in that, The side guard plate (220) is made of metal. The magnetic insert plate (230) and the side guard plate (220) can be attracted to each other. The top of the cover (22) adopts an inclined slope structure.

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