Building fire-fighting smoke exhaust device
By designing the mezzanine empty disk and mezzanine telescopic cylinder structure in the building fire exhaust device, and using the flue gas pressure to open the mezzanine telescopic cylinder, the problem of fixed smoking range and low smoke exhaust efficiency in the prior art is solved, and efficient extraction of the flue gas at the bottom of the building is achieved.
Patent Information
- Application Number
- CN202421678999.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The smoking range of existing building fire smoke exhaust devices is fixed, and the smoke gas at the bottom of the building cannot be extracted in time, resulting in low smoke exhaust efficiency.
A building fire-fighting smoke exhaust device is designed, adopting a mezzanine empty disk and mezzanine telescopic cylinder structure, which extracts smoke gas through the exhaust structure, and uses the flue gas pressure to open the mezzanine telescopic cylinder to expand the smoking range at the bottom of the building.
The timely extraction of smoke at the bottom of the building has been achieved, the smoking range has been increased, and the smoke exhaust efficiency has been improved.
Smart Images
Figure CN222824509U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building fire smoke exhaust, in particular to a building fire smoke exhaust device. Background Art
[0002] Building fire protection facilities refer to the general term for equipment and facilities installed in buildings for preventing and extinguishing building fires. Commonly used ones include automatic fire alarm systems, automatic sprinkler fire extinguishing systems, fire hydrant systems, smoke and exhaust systems, safe evacuation systems, etc. It is an important facility to ensure the fire safety of buildings and the safety of personnel evacuation, and is an important part of modern buildings.
[0003] When a fire occurs in a building, it will be accompanied by a large amount of thick smoke, so a smoke exhaust device will be installed inside the building. The smoke exhaust device uses a fan and other exhaust structures to extract the smoke inside the building through the smoke outlet, and then discharge it from the smoke exhaust end. However, the smoke extraction range of the existing smoke exhaust device is fixed, generally located on the roof of the building, so that the smoke at the bottom of the building cannot be extracted in time, and the smoke exhaust efficiency is low. To this end, we need to provide a building fire smoke exhaust device to solve the above problems. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a building fire smoke exhaust device, which increases the smoke extraction range at the bottom of the building and can exhaust the smoke at the bottom of the building in time.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The utility model discloses a building fire smoke exhaust device, including an exhaust structure, wherein an interlayer empty disk is arranged below the exhaust structure, and a plurality of first smoking holes are arranged at the lower end of the interlayer empty disk, the exhaust end of the exhaust structure and the first smoking holes are both connected with the inner cavity of the interlayer empty disk, the interlayer cavity of the interlayer empty disk is isolated from the inner cavity of the interlayer empty disk, a connected smoke pipe is arranged between the exhaust end of the exhaust structure and the interlayer cavity of the interlayer empty disk, the interlayer empty disk is provided with an interlayer telescopic cylinder, the interlayer telescopic cylinder is provided with a plurality of second smoking holes, the interlayer cavity of the interlayer telescopic cylinder is connected with the interlayer cavity of the interlayer empty disk, the inner cavity of the interlayer telescopic cylinder is respectively connected with the inner cavity of the interlayer empty disk and the second smoking holes, and the interlayer telescopic cylinder is provided with a contraction structure for contracting it.
[0007] Furthermore, the first smoking hole is arranged in the middle part of the lower end of the interlayer empty disk, the lower end edge of the interlayer empty disk is provided with an interlayer cylinder, the upper end of the interlayer telescopic cylinder is arranged in the interlayer cylinder, the interlayer cavity of the interlayer cylinder is respectively connected with the interlayer cavity of the interlayer empty disk and the interlayer cavity of the interlayer telescopic cylinder, the inner cavity of the interlayer cylinder is respectively connected with the inner cavity of the interlayer empty disk and the inner cavity of the interlayer telescopic cylinder, and the interlayer cylinder corresponds to the interlayer telescopic cylinder one by one.
[0008] Furthermore, the contraction structure is an elastic rope, and two ends of the elastic rope are respectively arranged at the upper and lower ends of the interlayer telescopic cylinder.
[0009] Furthermore, the inner cavity of the sandwich telescopic cylinder is provided with a plurality of support rings, and the elastic rope is fixed on each of the support rings in sequence.
[0010] Furthermore, there are a plurality of elastic ropes, and the elastic ropes are evenly arranged around the periphery of the support ring.
[0011] Furthermore, a sleeve shaft is provided at the upper end of the interlayer empty disk, and the smoking end of the exhaust structure is rotatably arranged in the sleeve shaft, and the outer wall of the sleeve shaft is fixedly sleeved with a left driven gear and a left winding wheel from top to bottom, and a right driven gear and a right winding wheel corresponding to the left driven gear and the left winding wheel respectively are rotatably arranged at the bottom of the exhaust structure, a rope is wound between the left winding wheel and the right winding wheel, and a power structure is provided on the side of the left driven gear, the power structure includes a power telescopic rod, a motor and a driving gear, one end of the power telescopic rod is fixedly arranged on the motor, and the driving gear is sleeved on the output shaft of the motor.
[0012] Furthermore, a connecting rod is provided on the right side wall of the exhaust structure, a rotating shaft is rotatably provided on the lower end of the connecting rod, and the right driven gear and the right winding wheel are fixedly sleeved on the rotating shaft.
[0013] Furthermore, a pressure valve is provided at the smoke exhaust end of the exhaust structure.
[0014] The beneficial effects of the utility model are as follows: the building fire smoke exhaust device of the present application is used for building fire smoke exhaust. When the building fire smoke exhaust is used, the exhaust structure works, and the smoke enters the inner cavity of the sandwich empty disk through the first smoking hole, and the exhaust end of the exhaust structure draws the smoke in the inner cavity of the sandwich empty disk, and the drawn smoke is discharged from the smoke exhaust end of the exhaust structure, the smoke exhaust end of the exhaust structure and the sandwich cavity of the sandwich empty disk are connected through the smoke pipe, and part of the smoke at the smoke exhaust end of the exhaust structure enters the sandwich cavity of the sandwich empty disk, and the sandwich cavity of the sandwich empty disk is connected with the sandwich cavity of the sandwich telescopic cylinder, and the smoke continuously enters the sandwich cavity of the sandwich telescopic cylinder, and the pressure of the smoke in the sandwich cavity of the sandwich telescopic cylinder increases, and the sandwich telescopic cylinder is stretched open under the pressure of the smoke, and the sandwich telescopic cylinder extends downward toward the bottom of the building, and the smoke at the bottom of the building enters the inner cavity of the sandwich empty disk from the second smoking hole, and is quickly discharged through the exhaust structure, thereby increasing the smoke extraction range at the bottom of the building, being able to discharge the smoke at the bottom in time, and improving the smoke exhaust efficiency. After the exhaust structure completes the smoke exhaust work, the contraction structure contracts the interlayer telescopic tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a cross-sectional view of a sandwich empty plate of a building fire smoke exhaust device provided by an embodiment of the utility model;
[0017] Figure 2 It is a structural schematic diagram of a building fire smoke exhaust device provided by an embodiment of the utility model;
[0018] Figure 3 yes Figure 1 A front view of
[0019] Figure 4 It is a cross-sectional view of an interlayer hollow disk, an interlayer cylinder and an interlayer telescopic cylinder provided by an embodiment of the utility model;
[0020] Figure 5 It is a structural schematic diagram of the power structure provided by an embodiment of the utility model;
[0021] Figure 6 yes Figure 5 Top view of the .
[0022] Figure numerals: exhaust structure 1, connecting rod 2, rotating shaft 3, right driven gear 4, right winding wheel 5, rope winding 6, interlayer empty disk 7, first smoking hole 701, interlayer telescopic cylinder 8, second smoking hole 801, interlayer cylinder 9, left winding wheel 10, left driven gear 11, smoke pipe 12, pressure valve 13, elastic rope 14, support ring 15, sleeve 16, power telescopic rod 17, motor 18, driving gear 19. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this embodiment provides a building fire smoke exhaust device, including an exhaust structure 1, an interlayer empty plate 7 is arranged below the exhaust structure 1, and a plurality of first smoking holes 701 are arranged at the lower end of the interlayer empty plate 7, the exhaust end of the exhaust structure 1 and the first smoking holes 701 are both connected to the inner cavity of the interlayer empty plate 7, the interlayer cavity of the interlayer empty plate 7 is isolated from the inner cavity of the interlayer empty plate 7, a connected smoke pipe 12 is arranged between the exhaust end of the exhaust structure 1 and the interlayer cavity of the interlayer empty plate 7, the interlayer empty plate 7 is provided with an interlayer telescopic cylinder 8, the interlayer telescopic cylinder 8 is provided with a plurality of second smoking holes 801, the interlayer cavity of the interlayer telescopic cylinder 8 is connected to the interlayer cavity of the interlayer empty plate 7, the inner cavity of the interlayer telescopic cylinder 8 is respectively connected to the inner cavity of the interlayer empty plate 7 and the second smoking holes 801, and the interlayer telescopic cylinder 8 is provided with a contraction structure for contracting it. Among them, the interlayer cavity of the interlayer telescopic tube 8 is isolated from the second smoking hole 801, the inner cavity of the interlayer empty disk 7 and the inner cavity of the interlayer telescopic tube 8 respectively. The interlayer telescopic tube 8 is set as a multi-section telescopic tube structure, such as two sections or three sections or four sections or ten sections or more integer sections, which are specifically set according to the needs of smoke exhaust. The interlayer empty disk 7 and the interlayer telescopic tube 8 are a double-layer structure of an outer layer and an inner layer, the inner cavity is a cavity covered by the inner layer structure, and the interlayer cavity is a cavity between the outer layer and the inner layer. Isolation means no connection. The number of interlayer telescopic tubes 8 is two or four or six or eight or more integers, which are specifically set according to the needs of smoke exhaust. There are at least two multiple first smoking holes 701 and multiple second smoking holes 801.
[0026] The building fire smoke exhaust device based on the above structure is used for building fire smoke exhaust. When the building fire smoke is exhausted, the exhaust structure 1 works, and the smoke enters the inner cavity of the interlayer empty plate 7 through the first smoking hole 701. The exhaust end of the exhaust structure 1 extracts the smoke in the inner cavity of the interlayer empty plate 7, and the extracted smoke is discharged from the exhaust end of the exhaust structure 1. The exhaust end of the exhaust structure 1 and the interlayer cavity of the interlayer empty plate 7 are connected through the smoke pipe 12. Part of the smoke from the exhaust end of the exhaust structure 1 enters the interlayer cavity of the interlayer empty plate 7. The interlayer cavity of the interlayer empty plate 7 is connected with the interlayer cavity of the interlayer telescopic tube 8, and smoke continuously enters the interlayer cavity of the interlayer telescopic tube 8. The pressure of the smoke in the interlayer cavity of the interlayer telescopic tube 8 increases, and the interlayer telescopic tube 8 is stretched open under the pressure of the smoke. The interlayer telescopic tube 8 extends downward toward the bottom of the building. The smoke at the bottom of the building enters the inner cavity of the interlayer empty plate 7 from the second smoking hole 801 and is quickly discharged through the exhaust structure 1, thereby increasing the smoking range at the bottom of the building, being able to timely discharge the smoke at the bottom, and improving the exhaust efficiency. After the exhaust structure 1 completes the exhaust work, the contraction structure contracts the interlayer telescopic tube 8.
[0027] As an implementation method, Figure 1 , Figure 4 As shown, the first smoking hole 701 is evenly arranged in the middle of the lower end of the interlayer empty disk 7, the lower end edge of the interlayer empty disk 7 is provided with an interlayer cylinder 9, the upper end of the interlayer telescopic cylinder 8 is arranged in the interlayer cylinder 9, the interlayer cavity of the interlayer cylinder 9 is respectively connected with the interlayer cavity of the interlayer empty disk 7 and the interlayer cavity of the interlayer telescopic cylinder 8, the inner cavity of the interlayer cylinder 9 is respectively connected with the inner cavity of the interlayer empty disk 7 and the inner cavity of the interlayer telescopic cylinder 8, and the interlayer cylinder 9 corresponds to the interlayer telescopic cylinder 8 one by one.
[0028] The sandwich cylinder 9 corresponds to the sandwich telescopic cylinder 8 one by one, and is two, four, six, eight or more integers, which are specifically arranged according to the smoke exhaust needs, and are arranged at the lower end edge of the sandwich empty plate 7. The arrangement of the sandwich cylinder 9 is convenient for installing and storing the sandwich telescopic cylinder 8. Among them, the sandwich cylinder 9 is a double-layer structure.
[0029] As an implementation method, Figure 4 As shown, the contraction structure is an elastic rope 14, and the two ends of the elastic rope 14 are respectively arranged at the upper and lower ends of the interlayer telescopic cylinder 8.
[0030] The interlayer telescopic tube 8 stretches and drives the elastic rope 14 to stretch and store power, the exhaust structure 1 stops working, and the elastic rope 14 contracts under the action of elastic force, driving the interlayer telescopic tube 8 to contract into the interlayer cylinder 9 to protect the interlayer telescopic tube 8. The upper and lower ends of the elastic rope 14 are respectively fixedly arranged at the upper and lower ends of the interlayer telescopic tube 8 after stretching. The elastic rope 14 can be a rubber band or an elastic rope.
[0031] As an implementation method, Figure 4 As shown, the inner cavity of the sandwich telescopic cylinder 8 is provided with a plurality of support rings 15 , and the elastic rope 14 is fixed to each of the support rings 15 in sequence.
[0032] The number of the support rings 15 is two, three, four or more integers, and the support rings 15 are evenly arranged along the axial direction of the sandwich telescopic tube 8. The support rings 15 support the sandwich telescopic tube 8 to prevent the sandwich telescopic tube 8 from shrinking when subjected to suction.
[0033] As an implementation method, Figure 4 As shown, there are multiple elastic ropes 14 , and the elastic ropes 14 are evenly arranged on the periphery of the support ring 15 .
[0034] The number of the elastic ropes 14 is two, three or four. For example, four elastic ropes 14 are evenly arranged on the periphery of the support ring 15, which is conducive to the smooth contraction of the sandwich telescopic tube 8.
[0035] As an implementation method, Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, a shaft sleeve 16 is provided at the upper end of the interlayer empty disk 7, and the smoking end of the exhaust structure 1 is rotatably arranged in the shaft sleeve 16. The outer wall of the shaft sleeve 16 is fixedly sleeved with a left driven gear 11 and a left winding wheel 10 from top to bottom, and a right driven gear 4 and a right winding wheel 5 corresponding to the left driven gear 11 and the left winding wheel 10 are rotatably arranged at the bottom of the exhaust structure 1. A rope 6 is wound between the left winding wheel 10 and the right winding wheel 5, and a power structure is provided on the side of the left driven gear 11, and the power structure includes a power telescopic rod 17, a motor 18 and a driving gear 19, one end of the power telescopic rod 17 is fixedly arranged on the motor 18, and the driving gear 19 is sleeved on the output shaft of the motor 18.
[0036] The power telescopic rod 17 contracts, driving the driving gear 19 to move to the left, so that the driving gear 19 is meshed with the left driven gear 11. The motor 18 works to drive the driving gear 19 to rotate, driving the left driven gear 11 to rotate, driving the interlayer empty disk 7 and the interlayer telescopic cylinder 8 to rotate, driving the left winding wheel 10 to rotate, and the rope 6 is removed from the right winding wheel 5 and wound on the left winding wheel 10. After the rope 6 is wound around the left winding wheel 10, the power telescopic rod 17 extends, driving the driving gear 19 to move to the right, and the driving gear 19 is separated from the left driven gear 11, so that The driving gear 19 meshes with the right driven gear 4, driving the right winding wheel 5 to rotate, and the rope 6 is removed from the left winding wheel 10 and wound on the right winding wheel 5. As the rope 6 is removed from the winding wheel 10 and wound on the right winding wheel 5, the speed of the sleeve 16 gradually increases, causing the speed of the interlayer telescopic cylinder 8 to gradually increase. As the interlayer telescopic cylinder 8 tilts under the action of centrifugal force due to different speeds, the interlayer telescopic cylinder 8 extends into its surrounding area, further expanding the smoking range of the area around the bottom of the building, and timely discharging the smoke at the bottom of the building, further improving the smoke exhaust efficiency. After the rope 6 is wound around the right winding wheel 5, the power telescopic rod 17 contracts, driving the driving gear 19 to move to the left, and the driving gear 19 is separated from the right driven gear 4, so that the driving gear 19 is meshed with the left driven gear 11.
[0037] As an implementation method, Figure 1 , Figure 2 , Figure 3 As shown, a connecting rod 2 is provided on the right side wall of the exhaust structure 1, a rotating shaft 3 is rotatably provided on the lower end of the connecting rod 2, and the right driven gear 4 and the right winding wheel 5 are fixedly sleeved on the rotating shaft 3.
[0038] The arrangement of the connecting rod 2 and the rotating shaft 3 facilitates the installation and fixation of the right driven gear 4 and the right winding wheel 5.
[0039] As an implementation method, Figure 2 As shown, a pressure valve 13 is provided at the smoke exhaust end of the exhaust structure 1 .
[0040] The pressure valve 13 is arranged above the smoke pipe 12, and the smoke has sufficient pressure to be discharged through the pressure valve 13, ensuring that the smoke entering the interlayer cavity of the interlayer telescopic cylinder 8 has sufficient pressure to open the interlayer telescopic cylinder 8 and extend it downward toward the bottom of the building.
[0041] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.
Claims
1. A building fire smoke exhaust device, comprising an exhaust structure (1), characterized in that: An interlayer empty plate (7) is arranged below the exhaust structure (1), and a plurality of first smoking holes (701) are arranged at the lower end of the interlayer empty plate (7). The exhaust end of the exhaust structure (1) and the first smoking holes (701) are both connected to the inner cavity of the interlayer empty plate (7), and the interlayer cavity of the interlayer empty plate (7) is isolated from the inner cavity of the interlayer empty plate (7). A smoke exhaust end of the exhaust structure (1) and the interlayer cavity of the interlayer empty plate (7) are arranged between the exhaust end of the exhaust structure (1) and the interlayer cavity of the interlayer empty plate (7). A connected smoke pipe (12), the interlayer empty disk (7) is provided with an interlayer telescopic cylinder (8), the interlayer telescopic cylinder (8) is provided with a plurality of second smoking holes (801), the interlayer cavity of the interlayer telescopic cylinder (8) is connected with the interlayer cavity of the interlayer empty disk (7), the inner cavity of the interlayer telescopic cylinder (8) is respectively connected with the inner cavity of the interlayer empty disk (7) and the second smoking holes (801), and the interlayer telescopic cylinder (8) is provided with a contraction structure for contracting it.
2. A building fire smoke exhaust device according to claim 1, characterized in that: The first smoking hole (701) is arranged at the middle part of the lower end of the interlayer empty disk (7); an interlayer cylinder (9) is arranged at the lower end edge of the interlayer empty disk (7); the upper end of the interlayer telescopic cylinder (8) is arranged in the interlayer cylinder (9); the interlayer cavity of the interlayer cylinder (9) is respectively connected with the interlayer cavity of the interlayer empty disk (7) and the interlayer cavity of the interlayer telescopic cylinder (8); the inner cavity of the interlayer cylinder (9) is respectively connected with the inner cavity of the interlayer empty disk (7) and the inner cavity of the interlayer telescopic cylinder (8); the interlayer cylinder (9) corresponds to the interlayer telescopic cylinder (8) one by one.
3. A building fire smoke exhaust device according to claim 1, characterized in that: The contraction structure is an elastic rope (14), and two ends of the elastic rope (14) are respectively arranged at the upper and lower ends of the sandwich telescopic cylinder (8).
4. A building fire smoke exhaust device according to claim 3, characterized in that: The inner cavity of the sandwich telescopic cylinder (8) is provided with a plurality of support rings (15), and the elastic rope (14) is fixed on each of the support rings (15) in sequence.
5. A building fire smoke exhaust device according to claim 4, characterized in that: The elastic ropes (14) are multiple in number, and the elastic ropes (14) are evenly arranged on the periphery of the support ring (15).
6. A building fire smoke exhaust device according to any one of claims 1 to 5, characterized in that: A shaft sleeve (16) is arranged at the upper end of the interlayer empty disk (7), and the smoking end of the exhaust structure (1) is rotatably arranged in the shaft sleeve (16). A left driven gear (11) and a left winding wheel (10) are fixedly sleeved on the outer wall of the shaft sleeve (16) from top to bottom. A right driven gear (4) and a right winding wheel (5) corresponding to the left driven gear (11) and the left winding wheel (10) are rotatably arranged below the exhaust structure (1). A winding rope (6) is wound between the left winding wheel (10) and the right winding wheel (5). A power structure is arranged on the side of the left driven gear (11), and the power structure comprises a power telescopic rod (17), a motor (18) and a driving gear (19). One end of the power telescopic rod (17) is fixedly arranged on the motor (18), and the driving gear (19) is sleeved on the output shaft of the motor (18).
7. A building fire smoke exhaust device according to claim 6, characterized in that: A connecting rod (2) is provided on the right side wall of the exhaust structure (1), a rotating shaft (3) is rotatably provided at the lower end of the connecting rod (2), and the right driven gear (4) and the right winding wheel (5) are fixedly sleeved on the rotating shaft (3).
8. A building fire smoke exhaust device according to claim 7, characterized in that: A pressure valve (13) is provided at the smoke exhaust end of the exhaust structure (1).