Fire smoke exhaust facility for building fire protection engineering

Abstract

The utility model discloses a building fire-fighting engineering fire hazard smoke exhaust facility which comprises a mounting seat, an adjusting mechanism is arranged on the mounting seat, the adjusting mechanism comprises a supporting arm, a fixing belt, a corrugated pipe, an air cylinder and an air outlet pipe, and a quick connecting mechanism is arranged at the bottom end of the corrugated pipe. The quick connecting mechanism comprises a quick connecting sleeve, a clamping pipe, a connecting pipe, a clamping groove, a threaded sleeve, a threaded rod, a gear, a clamping plate, a sliding sleeve, a rack and a fastening mechanism, the quick connecting sleeve is connected to the bottom end of the corrugated pipe, the clamping pipe is inserted into the quick connecting sleeve, and the connecting pipe is arranged at the bottom end of the clamping pipe. According to the smoke exhaust pipeline quick connecting device, the quick connecting function of the smoke exhaust pipeline is achieved, the clamping plates can be stably connected to the outer sides of the clamping grooves in an abutting mode through threaded fit of the threaded sleeve and the threaded rod and meshing transmission of the gear and the rack, reliable mechanical locking is formed, and the whole connecting process is guaranteed to be smoothly conducted through the guiding effect of the sliding sleeve.

Description

Technical Field

[0001] This utility model relates to the field of building fire protection engineering technology, and more specifically, it relates to a fire smoke exhaust system for building fire protection engineering. Background Technology

[0002] In building fire protection engineering, fire smoke exhaust facilities are a key component to ensure personnel evacuation and reduce fire losses. However, existing smoke exhaust duct connection methods often have problems such as complicated operation and long time consumption, which can seriously affect smoke exhaust efficiency in emergency situations and thus threaten personnel safety. In addition, due to the limitations of the connection structure, the sealing of the duct may also be insufficient, resulting in poor smoke exhaust effect and even causing smoke backflow, increasing the risk of fire.

[0003] On construction sites, due to the complex and ever-changing environment, the installation and dismantling of exhaust ducts need to be carried out frequently. The existing connection methods not only require the use of professional tools, but also involve complicated operating procedures. Construction workers need to frequently change tools and adjust positions when working at heights, which not only increases the difficulty of the work, but also easily leads to safety hazards due to improper operation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a fire smoke exhaust system for building fire protection engineering, so as to solve the technical problems mentioned in the background art that the installation and dismantling of smoke exhaust pipes need to be performed frequently, and the existing connection methods not only require the use of professional tools, but also have cumbersome operation steps.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire smoke exhaust system for building fire protection engineering, comprising a mounting base, an adjustment mechanism on the mounting base, the adjustment mechanism comprising a support arm, fixing straps, a corrugated pipe, a cylinder, and an exhaust pipe, the support arm being connected to the mounting base, multiple sets of fixing straps distributed on the outside of the support arm, the corrugated pipe being fixed within the multiple sets of fixing straps, multiple sets of cylinders mounted on the support arm, the exhaust pipe being mounted on the top of the corrugated pipe, and a quick-connect mechanism being provided at the bottom of the corrugated pipe, the quick-connect mechanism comprising... The system includes a quick-connect sleeve, a clamping tube, a connecting tube, a clamping groove, a threaded sleeve, a screw, a gear, a clamping plate, a sliding sleeve, a rack, and a fastening mechanism. The quick-connect sleeve is connected to the bottom end of the corrugated pipe. The clamping tube is inserted into the quick-connect sleeve. The connecting tube is located at the bottom end of the clamping tube. The clamping groove is located on the outer wall of the clamping tube. Multiple sets of threaded sleeves are fixed to the outer wall of the quick-connect sleeve. The screw is connected to multiple sets of threaded sleeves. The gear rotates at the top of multiple sets of threaded sleeves. The clamping plate rotates and is connected to the bottom end of multiple sets of screws. The sliding sleeve slides on the outer wall of the quick-connect sleeve. Multiple sets of racks are distributed on the outer wall of the sliding sleeve and mesh with multiple sets of gears.

[0008] The present invention is further configured such that the fastening mechanism includes an abutment sleeve, a support rod, a rotating sleeve, a sliding groove, a clearance hole, an abutment block, a contraction spring, a connecting ring, an arc-shaped slider, and an annular groove. The abutment sleeve slides on the outer wall of the quick-connect sleeve. Multiple sets of support rods are distributed on the bottom surface of the abutment sleeve. The rotating sleeve is rotatably mounted on the outer wall of the quick-connect sleeve. Multiple sets of sliding grooves are distributed on the outer wall of the rotating sleeve. A clearance hole is located at one end of multiple sets of sliding grooves. The abutment block is mounted on the top of multiple sets of support rods. Multiple sets of contraction springs are connected to the outer wall of the abutment sleeve. The connecting ring is connected to the top of multiple sets of contraction springs. The arc-shaped slider is mounted on the top surface of multiple sets of connecting rings. The annular groove is located on the bottom surface of the rotating sleeve and is slidably connected to multiple sets of arc-shaped sliders.

[0009] The present invention is further configured such that all of the multiple sets of straps are elastic straps. The design of the elastic straps provides good cushioning and adaptability, making the fixation more stable and reliable.

[0010] The present invention is further configured such that a sealing gasket is provided inside the quick-connect sleeve, a sealing groove is provided on the sealing gasket, and a sealing strip is provided at the top of the snap-fit ​​tube. Multiple sets of sealing grooves and sealing strips are provided and are compatible with each other. Through the multiple sealing design of sealing gasket, sealing groove and sealing strip, the airtightness of the connection is ensured and the leakage of flue gas is effectively prevented.

[0011] The present invention is further configured such that each of the multiple sets of screws is fixedly provided with a limiting rod at its top end, and the multiple sets of limiting rods are slidably connected to multiple sets of gears respectively. Through the sliding cooperation between the limiting rods and the gears, the screws are accurately positioned and stably transmitted.

[0012] The present invention is further configured such that all of the multiple sets of limiting rods are polygonal, and the polygonal design increases the contact area between the limiting rods and the gears, thereby improving the stability and reliability of the transmission.

[0013] The present invention is further configured such that the outer wall of the card slot and the inner side of the multiple sets of clamping plates are all set as inclined surfaces. The inclined surface design increases the contact area and friction between the card slot and the clamping plates, thereby improving the firmness of the connection.

[0014] The present invention is further configured such that the diameter of the multiple sets of relief holes is larger than that of the abutment block. The reasonable size design ensures that the abutment block can pass smoothly through the relief holes, making the operation more convenient.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a fire smoke exhaust system for building fire protection engineering, which has the following beneficial effects:

[0017] 1. The design employs a precise fit between quick-connect sleeves and clamping pipes, combined with the ingenious layout of the connecting pipe and the clamping groove, to achieve rapid connection of smoke exhaust ducts. Through the threaded engagement of the sleeve and the screw, along with the meshing transmission of gears and racks, the clamping plate can be firmly abutted against the outside of the clamping groove, forming a reliable mechanical lock. The guiding effect of the sliding sleeve ensures the smooth progress of the entire connection process. This design not only improves the efficiency of pipe connection but also enhances the firmness of the connection through the friction between the clamping plate and the inclined surface of the clamping groove. It greatly solves the problems of complex operation and long time consumption in traditional connection methods, and meets the requirements of rapid deployment of smoke exhaust facilities in fire protection engineering.

[0018] 2. The fastening mechanism, through the cooperation of the abutment sleeve, support rod and rotating sleeve, combined with the design of sliding groove and clearance hole, provides a secondary locking function to prevent accidental loosening. The elastic support of the contraction spring and connecting ring, plus the precise cooperation of the arc slider and the annular groove, ensures the stability of the fastening process.

[0019] 3. The design of the sealing gasket and sealing groove, combined with the precise insertion of the sealing strip, forms a multi-layer sealing structure, which effectively solves the problem of insufficient sealing of traditional smoke exhaust pipes. The use of elastic bands provides additional stable support, while the polygonal design of the limit rod enhances the reliability of transmission. These innovative designs greatly improve the airtightness of the entire smoke exhaust system, ensuring the maximum smoke exhaust effect in the event of a fire and effectively protecting the safety of personnel evacuation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a fire smoke exhaust system for building fire protection engineering according to this utility model;

[0021] Figure 2 This is a schematic diagram of the quick-connect mechanism in this utility model;

[0022] Figure 3 This is a cross-sectional view of the quick-connect mechanism in this utility model;

[0023] Figure 4 This is a cross-sectional view of the card connector in this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the fastening mechanism in this utility model.

[0025] In the diagram: 1. Mounting base; 2. Support arm; 3. Fixing strap; 4. Corrugated pipe; 5. Cylinder; 6. Air outlet pipe; 7. Quick-connect sleeve; 8. Snap-fit ​​pipe; 9. Connecting pipe; 10. Snap-fit ​​groove; 11. Screw sleeve; 12. Screw; 13. Gear; 14. Clamping plate; 15. Sliding sleeve; 16. Rack; 17. Abutment sleeve; 18. Support rod; 19. Rotating sleeve; 20. Sliding groove; 21. Clearance hole; 22. Abutment block; 23. Contraction spring; 24. Connecting ring; 25. Arc-shaped slider; 26. Annular groove; 27. Sealing gasket; 28. Sealing groove; 29. ​​Sealing strip; 30. Limiting rod. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A fire smoke exhaust system for building fire protection engineering includes a mounting base 1. An adjustment mechanism is provided on the mounting base 1. The adjustment mechanism includes a support arm 2, fixing straps 3, a corrugated pipe 4, a cylinder 5, and an exhaust pipe 6. The support arm 2 is connected to the mounting base 1. Multiple sets of fixing straps 3 are distributed on the outside of the support arm 2. The corrugated pipe 4 is fixed within the multiple sets of fixing straps 3. Multiple sets of cylinders 5 are installed on the support arm 2. The exhaust pipe 6 is installed at the top of the corrugated pipe 4. A quick-connect mechanism is provided at the bottom of the corrugated pipe 4. The quick-connect mechanism includes a quick-connect sleeve 7, a clamping pipe 8, a connecting pipe 9, a clamping groove 10, a threaded sleeve 11, and a screw 12. The system includes gear 13, clamping plate 14, sliding sleeve 15, rack 16, and fastening mechanism. Quick-connect sleeve 7 is connected to the bottom end of bellows 4. Clamping tube 8 is inserted into quick-connect sleeve 7. Connecting tube 9 is located at the bottom end of clamping tube 8. Clamping groove 10 is located on the outer wall of clamping tube 8. Multiple sets of threaded sleeves 11 are fixed to the outer wall of quick-connect sleeve 7. Screw 12 is connected to multiple sets of threaded sleeves 11. Gear 13 rotates at the top of multiple sets of threaded sleeves 11. Clamping plate 14 is rotatably connected to the bottom end of multiple sets of screws 12. Sliding sleeve 15 slides on the outer wall of quick-connect sleeve 7. Multiple sets of rack 16 are distributed on the outer wall of sliding sleeve 15 and mesh with multiple sets of gear 13 respectively.

[0030] The fastening mechanism includes an abutment sleeve 17, a support rod 18, a rotating sleeve 19, a sliding groove 20, a clearance hole 21, an abutment block 22, a contraction spring 23, a connecting ring 24, an arc-shaped slider 25, and an annular groove 26. The abutment sleeve 17 slides on the outer wall of the quick-connect sleeve 7. Multiple sets of support rods 18 are distributed on the bottom surface of the abutment sleeve 17. The rotating sleeve 19 is rotatably mounted on the outer wall of the quick-connect sleeve 7. Multiple sets of sliding grooves 20 are distributed on the outer wall of the rotating sleeve 19. The clearance hole 21 is located at one end of the multiple sets of sliding grooves 20. The abutment block 22 is mounted on the top of the multiple sets of support rods 18. Multiple sets of contraction springs 23 are connected to the outer wall of the abutment sleeve 17. The connecting ring 24 is connected to the top of the multiple sets of contraction springs 23. The arc-shaped slider 25 is mounted on the top surface of the multiple sets of connecting rings 24. The annular groove 26 is located on the bottom surface of the rotating sleeve 19 and is slidably connected to the multiple sets of arc-shaped sliders 25.

[0031] All sets of fixing straps 3 are set as elastic straps. The elastic straps 3 can automatically adjust the tightness according to the deformation of the bellows to maintain the stability of the fixing force.

[0032] The quick-connect sleeve 7 has a sealing gasket 27 with a sealing groove 28. The top of the snap-fit ​​tube 8 has a sealing strip 29. The sealing groove 28 and the sealing strip 29 are provided in multiple sets and are compatible. When the sealing strip 29 is inserted into the sealing groove 28, it will compress the sealing gasket 27 to form a multi-seal structure.

[0033] Each of the multiple sets of screws 12 has a limiting rod 30 fixedly installed at its top end. The multiple sets of limiting rods 30 are slidably connected to multiple sets of gears 13. The limiting rods 30 slide within the gears 13 to ensure that the screws 12 maintain stable axial movement when rotating.

[0034] All sets of limit rods 30 are set as polygons. The polygonal structure of the limit rods 30 increases the contact area with the gear 13, providing a more stable transmission effect.

[0035] The outer wall of the slot 10 and the inner side of the multiple sets of clamping plates 14 are all set as bevels. The bevel design makes the clamping plates 14 and the slot 10 form a wedge-shaped lock, increasing the firmness of the connection.

[0036] The diameter of the multiple clearance holes 21 is larger than that of the abutment block 22. The size design of the clearance holes 21 ensures that the abutment block 22 can pass freely, realizing the quick unlocking function.

[0037] In this embodiment, the support direction of the support arm 2 is controlled by multiple sets of cylinders 5. The connecting pipe 9 is connected to an external suction fan. When it is necessary to snap the connecting pipe 9, the snap-fit ​​tube 8 at the top of the connecting pipe 9 is inserted into the quick-connect sleeve 7. Multiple sets of sealing strips 29 at the top of the snap-fit ​​tube 8 are inserted into the sealing groove 28 and continue to compress the sealing gasket 27. The sliding sleeve 15 drives multiple sets of racks 16 to slide and mesh with multiple sets of gears 13. The multiple sets of gears 13 drive multiple sets of limit rods 30 to rotate. The multiple sets of limit rods 30 drive the screw 12 to rotate and engage with the threaded sleeve 11. At this time, the multiple sets of screws 12... 2. Move along the threaded sleeve 11 and drive the limiting rod 30 to slide along the gear 13, so that multiple sets of clamping plates 14 abut against the outside of the slot 10. Through the inclined surface design of the slot 10 and the inner side of the multiple sets of clamping plates 14, the friction between the outer wall of the slot 10 and the inner side of the multiple sets of clamping plates 14 is increased. Then push the abutting sleeve 17 to abut against the bottom of the sliding sleeve 15, and at the same time stretch the multiple sets of contraction springs 23. At this time, multiple sets of support rods 18 move in the relief hole 21. Rotate the rotating sleeve 19 so that the multiple sets of support rods 18 slide in the sliding groove 20, so that multiple sets of abutting blocks 22 abut against the outer wall of the rotating sleeve 19. At this time, the sliding sleeve 15 is limited.

[0038] More specifically, when disassembly is required, rotating the rotating sleeve 19 drives multiple sets of sliding grooves 20 to rotate, causing multiple sets of support rods 18 to move into the relief hole 21. At the same time, multiple sets of arc-shaped sliders 25 slide along the annular groove 26. When multiple sets of abutting blocks 22 move into the relief hole 21 and release their abutment against the outer wall of the rotating sleeve 19, the elastic reset of multiple sets of contraction springs 23 pulls the abutting sleeve 17 to release its abutment against the sliding sleeve 15. Then, the sliding sleeve 15 can be slid to release its clamping of the clamping pipe 8, and the connecting pipe 9 can be disassembled.

[0039] In summary, during the use or operation of the overall equipment: the support direction of the support arm 2 is controlled by multiple sets of cylinders 5; the connecting pipe 9 is connected to the external suction fan; when it is necessary to clamp the connecting pipe 9, the clamping pipe 8 at the top of the connecting pipe 9 is inserted into the quick-connect sleeve 7; multiple sets of sealing strips 29 at the top of the clamping pipe 8 are inserted into the sealing groove 28 and continue to compress the sealing gasket 27; the sliding sleeve 15 drives multiple sets of racks 16 to slide and mesh with multiple sets of gears 13; the multiple sets of gears 13 drive multiple sets of limit rods 30 to rotate; the multiple sets of limit rods 30 drive the screw 12 to rotate and engage with the threaded sleeve 11. At this time... Multiple sets of screws 12 move along the screw sleeve 11 and drive the limiting rod 30 to slide along the gear 13, so that multiple sets of clamping plates 14 abut against the outside of the slot 10. Through the inclined surface design of the slot 10 and the inner side of the multiple sets of clamping plates 14, the friction between the outer wall of the slot 10 and the inner side of the multiple sets of clamping plates 14 is increased. Then, the abutting sleeve 17 is pushed to abut against the bottom of the sliding sleeve 15, and at the same time, the multiple sets of contraction springs 23 are stretched. At this time, multiple sets of support rods 18 move in the relief hole 21. Rotating the rotating sleeve 19 causes the multiple sets of support rods 18 to slide in the sliding groove 20, so that multiple sets of abutting blocks 22 abut against the outer wall of the rotating sleeve 19, and at this time, the sliding sleeve 15 is limited.

[0040] When disassembly is required, rotating the rotating sleeve 19 drives multiple sets of sliding grooves 20 to rotate, causing multiple sets of support rods 18 to move into the relief hole 21. At the same time, multiple sets of arc-shaped sliders 25 slide along the annular groove 26. When multiple sets of abutting blocks 22 move into the relief hole 21 and release their abutment against the outer wall of the rotating sleeve 19, the elastic reset of multiple sets of contraction springs 23 pulls the abutting sleeve 17 to release its abutment against the sliding sleeve 15. Then, the sliding sleeve 15 can be slid to release its clamping of the clamping pipe 8, and the connecting pipe 9 can be disassembled.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire engineering smoke control installation for buildings comprising a mounting (1) characterised in that: The mounting base (1) is provided with an adjusting mechanism, the adjusting mechanism comprises a support arm (2), a fixing belt (3), a bellows (4), an air cylinder (5) and an air outlet pipe (6), the support arm (2) is connected to the mounting base (1), the fixing belt (3) is provided with a plurality of groups of distribution on the outer side of the support arm (2), the bellows (4) is fixed in the plurality of fixing belts (3), the air cylinder (5) is provided with a plurality of groups of installation on the support arm (2), the air outlet pipe (6) is installed at the top of the bellows (4), the bottom of the bellows (4) is provided with a quick connecting mechanism, the quick connecting mechanism comprises a quick connecting sleeve (7), a clamping pipe (8), a connecting pipe (9), a clamping groove (10), a screw sleeve (11), a screw rod (12), a gear (13), a clamping plate (14), a sliding sleeve (15), a rack (16) and a fastening mechanism, the quick connecting sleeve (7) is connected to the bottom of the bellows (4), the clamping pipe (8) is inserted into the quick connecting sleeve (7), the connecting pipe (9) is arranged at the bottom of the clamping pipe (8), the clamping groove (10) is arranged on the outer wall of the clamping pipe (8), the screw sleeve (11) is provided with a plurality of groups of fixed on the outer wall of the quick connecting sleeve (7), the screw rod (12) is connected into the plurality of screw sleeves (11), the gear (13) rotates at the top of the plurality of screw sleeves (11), the clamping plate (14) is rotatably connected to the bottom of the plurality of screw rods (12), the sliding sleeve (15) slides on the outer wall of the quick connecting sleeve (7), and the rack (16) is provided with a plurality of groups of distribution on the outer wall of the sliding sleeve (15) and is engaged with the plurality of gears (13) respectively.

2. A fire smoke exhaust system for building fire protection engineering according to claim 1, characterized in that: The fastening mechanism comprises an abutting sleeve (17), a support rod (18), a rotating sleeve (19), a sliding groove (20), a clearance hole (21), an abutting block (22), a contraction spring (23), a connecting ring (24), an arc-shaped sliding block (25) and an annular groove (26), the abutting sleeve (17) slides on the outer wall of the quick connecting sleeve (7), the support rod (18) is provided with a plurality of groups of distribution on the bottom surface of the abutting sleeve (17), the rotating sleeve (19) is rotatably installed on the outer wall of the quick connecting sleeve (7), the sliding groove (20) is provided with a plurality of groups of distribution on the outer wall of the rotating sleeve (19), the clearance hole (21) is arranged at one end of the plurality of sliding grooves (20), the abutting block (22) is installed at the top of the plurality of support rods (18), the contraction spring (23) is provided with a plurality of groups of connection on the outer wall of the abutting sleeve (17), the connecting ring (24) is connected to the top of the plurality of contraction springs (23), the arc-shaped sliding block (25) is installed on the top surface of the plurality of connecting rings (24), and the annular groove (26) is arranged on the bottom surface of the rotating sleeve (19) and is slidably connected with the plurality of arc-shaped sliding blocks (25) respectively.

3. A fire fighting engineering smoke extraction installation for buildings according to claim 2, characterized in that: The plurality of fixing belts (3) are all provided as elastic belts.

4. A fire fighting engineering smoke extraction installation for buildings according to claim 3, characterized in that: The quick connecting sleeve (7) is provided with a sealing gasket (27), a sealing groove (28) is formed in the sealing gasket (27), a sealing strip (29) is arranged at the top of the clamping pipe (8), and the sealing groove (28) and the sealing strip (29) are all provided with a plurality of groups and are matched.

5. A fire smoke exhaust system for building fire protection engineering according to claim 4, characterized in that the plurality of groups of Limit rods (30) are fixedly arranged at the top of the plurality of screw rods (12), and the plurality of limit rods (30) are slidably connected with the plurality of gears (13) respectively. ​ 6. A fire fighting engineering smoke extraction installation for buildings according to claim 5, characterized in that: The plurality of limit rods (30) are all provided as polygons.

7. A fire fighting engineering smoke extraction installation according to claim 6, characterised in that: The outer wall of the clamping groove (10) and the inner side of the plurality of clamping plates (14) are all provided as inclined surfaces.

8. A fire fighting engineering smoke extraction installation for buildings according to claim 7, characterized in that: The diameters of the plurality of groups of the displacement holes (21) are greater than the abutting block (22).

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