Fire-fighting earthquake-resistant ceiling

Abstract

The present invention relates to the technical field of fire-fighting suspended ceilings, and specifically provides a fire-fighting earthquake-resistant suspended ceiling, comprising a main keel, a secondary keel and a side keel, a hanger, a ceiling board and a sprinkler unit, wherein the main keel is connected to the secondary keel by a first connecting sleeve, and the first connecting sleeve buffers the stress transfer between the main keel and the secondary keel; a second connecting sleeve is arranged between the main keel and the side keel, and the second connecting sleeve buffers the stress transfer between the main keel and the side keel, a cross-bracing keel is arranged between the secondary keels, and the sprinkler unit is arranged on the cross-bracing keel; when the room vibrates, the second connecting sleeve buffers and reduces shock to reduce the stress and collision at the connection between the main keel and the side keel, the first connecting sleeve reduces the shaking of the secondary keel, improves the shaking of the secondary keel and the problem of stress concentration, minimizes the vibration received by the cross-bracing keel, and arranges the sprinkler unit on the cross-bracing keel, effectively reduces the vibration received by the sprinkler unit, avoids the failure of the sprinkler unit during vibration, and further avoids the associated damage of the sprinkler unit.

Description

Technical Field

[0001] The invention relates to the technical field of fire-fighting suspended ceilings, and in particular provides a fire-fighting earthquake-resistant suspended ceiling. Background Art

[0002] Suspended ceiling refers to the decoration of the ceiling, which is one of the important parts of interior decoration. Suspended ceiling is set up in the house, which generally has the functions of heat preservation, heat insulation, sound insulation and sound absorption. It is also a hidden layer for electrical, ventilation and air conditioning, communication and fire protection, alarm pipeline equipment and other projects. Commercial office buildings generally use exposed ceiling, that is, the keel structure of the ceiling is exposed to the outside and is not closed. It is a kind of ceiling method that is more convenient for the installation and maintenance of pipelines and lines.

[0003] In the prior art, the fire sprinkler system in the office building integrates the sprinkler head into the suspended ceiling in order to take into account the area inside and below the suspended ceiling. For example, the existing patent CN111851835B-a fire sprinkler under a mineral wool board suspended ceiling and its installation method, the sprinkler nozzle is set on the suspended ceiling board, and CN117605214B-a fire ceiling and installation method, the sprinkler structure is set on the keel. When suffering from disasters such as earthquakes, the probability of damage to non-structural components such as exposed ceilings is relatively high, and the suspended ceiling boards and keels are the hardest hit areas for suspended ceiling damage. Therefore, the integration of the sprinkler fire protection system with the suspended ceiling can save space for pipe routing, cost and expand the coverage of the sprinkler. However, as the suspended ceiling vibrates, the suspended ceiling board deflects and the keel deforms, the fire sprinkler system in the suspended ceiling is very likely to be damaged and fail after the vibration, which in turn creates a safety hazard. Therefore, there is an urgent need for a fire suspended ceiling with an earthquake-resistant structure that does not damage the fire sprinkler system. Summary of the invention

[0004] The present invention aims to provide a fire-fighting earthquake-resistant suspended ceiling, which improves the earthquake-resistant capability and solves the problem that a fire-fighting sprinkler system arranged on the suspended ceiling is easily damaged.

[0005] The technical solution of the present invention is as follows:

[0006] A fire-fighting earthquake-resistant ceiling comprises a keel, a hanger, a ceiling board and a sprinkler unit, wherein the keel comprises a main keel, a secondary keel and a side keel, a plurality of main keels are arranged in parallel and suspended on the ceiling by a plurality of the hangers, and the secondary keels are vertically arranged between the main keels; the side keels are arranged around the wall, the two end frames of the main keel are arranged on the side keels, the sprinkler unit is arranged on the keel, and the ceiling board is arranged in a grid formed by the keels; the main keel and the secondary keel are connected by a first connecting sleeve, and the first connecting sleeve is used to buffer the stress transfer between the main keel and the secondary keel; a second connecting sleeve is arranged between the main keel and the side keel, and the second connecting sleeve is used to buffer the stress transfer between the main keel and the side keel, a cross-bracing keel is arranged between the secondary keels, and the sprinkler unit is arranged on the cross-bracing keel.

[0007] In the prior art, the main support is provided by the main keel. When vibration occurs, the wall transmits the vibration to the main keel, causing the entire ceiling to shake with a large amplitude and the vibration can easily cause the nozzle of the sprinkler unit to fail (such as water pipe connector falling off and leaking, nozzle failure, thermal sensitive structure damage, etc.). When the vibration is severe, the connection between the main keel and the secondary keel and the ceiling panel are very likely to fall off and be damaged, thereby causing damage to the sprinkler unit installed on the keel. However, in this scheme, a second connecting sleeve is arranged between the main keel and the side keel. When there is vibration in the room, the second connecting sleeve can allow the main keel to swing slightly along the length direction of the main keel relative to the side keel when locating the position of the main keel on the side keel. The stress and collision at the connection between the main keel and the side keel are reduced through the buffering and shock absorption of the connecting sleeve, and the stress concentration in the main keel that causes fatigue of the main keel can also be avoided. A first connecting sleeve is arranged between the main keel and the secondary keel. When the first connecting sleeve locates the position of the secondary keel on the main keel, the second connecting sleeve reduces the swing of the main keel in the length direction, effectively slowing down the bending of the secondary keel caused by the main keels at both ends, and also reducing the shaking of the secondary keel. In addition, the first connecting sleeve allows the secondary keel to swing slightly along the length direction of the secondary keel relative to the main keel, reducing the shaking of the secondary keel and the stress concentration problem, minimizing the vibration received by the cross-bracing keel, and arranging the spray unit on the cross-bracing keel, effectively reducing the vibration received by the spray unit, and avoiding failure of the spray unit during vibration. By providing a connecting sleeve at the keel connection, the seismic resistance, overall strength and service life of the ceiling keel are greatly improved, and the sprinkler unit installed on the keel is prevented from being damaged.

[0008] Preferably, the first connecting sleeve includes a first mounting portion and a buffer portion, the first mounting portion is buckled on the main keel, the buffer portion is fixedly arranged at the end of the secondary keel, the punch portion is slidably arranged in the first mounting portion, and the end of the punch portion abuts against the first mounting portion through a buffer unit. Since the keel that contacts the four walls of the house is mainly the main keel, in this solution, the buffer portion can slide along the first mounting portion, providing a sliding guide for the secondary keel, so that when the keel is subjected to vibration, a relative sliding can occur between the main keel and the secondary keel, which can prevent the main keel from transmitting its own shaking and vibration to the secondary keel, and greatly reduce the vibration of the secondary keel in the length direction.

[0009] Preferably, the first mounting portion is provided with a snap hole, the main keel can be slidably arranged in the snap hole, and the first mounting portion is symmetrically provided with open slots on both sides, and the ends of the secondary keels can be inserted into the open slots. In this solution, the first connecting sleeve can directly pass the main keel through the snap hole, which is convenient for the installation of the first connecting sleeve. By sliding the first connecting sleeve, its position in the length direction of the main keel can be adjusted, and it can be easily adjusted to the required position according to the design drawing. At the same time, the symmetrically arranged open slots can locate the secondary keel connection positions on both sides of the main keel at one time, reducing the difficulty of positioning when installing the keel.

[0010] Preferably, the buffer portion includes fixed plates symmetrically arranged on both sides of the vertical ribs of the keel, and bent plates are arranged outward on the upper ends of the two fixed plates. The fixed plates are slidably arranged at the bottom of the open groove through the bent plate structure, and the buffer unit is arranged at one end of the fixed plate. The buffer unit includes a shock-absorbing block and an elastic member, and the shock-absorbing block is fixedly arranged on the fixed plate, and the two ends of the elastic member respectively abut the shock-absorbing block and the first mounting portion.

[0011] In this solution, the spring always abuts against the end of the secondary keel and the vertical rib of the keel, which can compensate for the error in the length direction of the secondary keel and avoid a rigid collision between the end of the secondary keel and the vertical rib of the keel when the secondary keel slides along the first mounting part; at the same time, when vibration occurs, the shock absorber can slow down and absorb the vibration of the first mounting part and the spring.

[0012] Preferably, the second connecting sleeve includes a second mounting portion and the buffer portion, the second mounting portion is fixedly arranged on the vertical rib of the side keel, the buffer portion of the second connecting sleeve is slidably arranged in the second mounting portion, the buffer portion is arranged at the end of the main keel, and the elastic components in the buffer portion respectively abut the shock absorbing block and the second mounting portion.

[0013] In this scheme, a second connecting sleeve similar to the first connecting sleeve is arranged between the main keel and the side keel, and the middle buffer part can slide along the second mounting part to provide a sliding guide for the main keel, so that when the keel is subjected to vibration, the main keel can move relative to the side keel, thereby preventing the side keel from transmitting its own shaking and vibration to the secondary keel, greatly reducing the vibration of the main keel in the length direction, and because the length directions of the main keel and the secondary keel are horizontally and perpendicular to each other, through the cooperation of the first connecting sleeve and the second connecting sleeve, the vibration of the keel arranged between the main keels will be greatly reduced, thereby improving the strength and stability of the keel and effectively preventing the displacement of the ceiling panel arranged in the keel grid.

[0014] On the one hand, in the prior art, the hanging tools used in the suspended ceiling are generally steel wire ropes, hanging rods, screw rods, etc., which provide an upward pulling force to the keel. In order to prevent the suspended ceiling board from floating up and down when negative wind pressure is generated indoors, an additional anti-support pressure rod is often set on the upper surface of the main keel. However, setting up the anti-support pressure rod will greatly increase the process and labor intensity of the suspended ceiling installation.

[0015] Therefore, the sling includes a diagonal unit and a sling unit. The sling unit includes a distance-adjusting end. The distance-adjusting end is provided with a ceiling screw and a connecting bent plate. One end of the connecting bent plate is clamped with the main keel, and the other end is penetrated by the ceiling screw. Two screw nuts are provided on the ceiling screw, and the two screw nuts are respectively provided on both sides of the connecting bent plate. The main keel is continuously lifted by the ceiling screw, and the two screw nuts on the ceiling screw limit the displacement of the connecting bent plate up and down respectively. The overall length of the sling unit can also be adjusted by moving the two screw nuts to adapt to ceilings of different heights.

[0016] On the other hand, although the anti-support plate can suppress the vertical vibration of the keel to a certain extent, it will cause the stress on the main keel to increase, aggravating the fracture of the keel.

[0017] Preferably, the sling unit further comprises a buffer compensation end arranged between the connecting bent plate and the main keel, the buffer compensation end is provided with an elastic buffer block, and the elastic buffer block always abuts against the top surface of the main keel.

[0018] In this solution, the elastic buffer block is pressed downward against the main keel, providing a downward thrust to the main keel to prevent the ceiling panel from floating up and down. At the same time, a buffer structure is formed between the hanger unit and the main keel to absorb the vertical vibration of the main keel, and cooperate with the first connecting plate and the second connecting plate to absorb the horizontal vibration, effectively ensuring the stability and strength of the ceiling.

[0019] Preferably, the inclined-stayed unit includes a distance-adjusting buckle and a pull rope. A rotating roller is provided at the lower end of the distance-adjusting buckle. The pull rope is taut, and its two ends are respectively connected to the two ends of the main keel, and the middle part of the pull rope is wound around the rotating roller. The pull rope is used to assist in lifting the main keel. Since the main keel buckle is provided on the two connecting bent plates, the main keel will only receive an upward support force when it contacts the connecting bent plates. If the vibration floating is too large, the elastic buffer block will be compressed to a certain extent in order to absorb the vibration. At this time, the keel can vibrate up and down, but the pull rope can always provide an upward pulling force to the keel, effectively reducing the impact on the sling unit. At the same time, by adjusting the tension of the pull rope by raising the height of the rotating roller, the tension balance at both ends of the pull rope can also be ensured.

[0020] Preferably, the spray unit includes a three-way valve, which connects two fire sprinklers and a fire hose, and the outlets of the two fire sprinklers are respectively directed toward the inside of the suspended ceiling and below the suspended ceiling.

[0021] Preferably, it also includes a smoke exhaust unit, which includes an exhaust fan suspended from the ceiling, a smoking pipe is provided on the keel along the length direction of the keel, and a suction hole connected to the bottom surface of the ceiling is provided on the smoking pipe body, one end of the smoking pipe is closed, and the other end is connected to the exhaust fan.

[0022] Since the existing office buildings do not have exhaust outlets or only have them in a few fixed areas, when a fire occurs, the smoke generated by the raging fire will quickly fill the entire office area. Therefore, this solution can expand the smoke absorption range by laying suction ducts along the keel, and effectively absorb the smoke under the ceiling in a timely manner when a fire occurs, providing an escape environment and escape time for people in distress.

[0023] Beneficial effects of the present invention:

[0024] The present invention arranges a first connecting sleeve between the main keel and the secondary keel, and a second connecting sleeve between the main keel and the side keel. When the room vibrates, the second connecting sleeve reduces the stress and collision at the connection between the main keel and the side keel through buffering and shock absorption, thereby avoiding the stress concentration in the main keel causing fatigue in the main keel. The first connecting sleeve reduces the shaking of the secondary keel, and the first connecting sleeve allows the secondary keel to swing slightly along the length direction of the secondary keel relative to the main keel, thereby reducing the shaking of the secondary keel and the stress concentration problem, minimizing the vibration received by the cross-bracing keel, and arranging the spray unit on the cross-bracing keel, thereby effectively reducing the vibration received by the spray unit, avoiding the failure of the spray unit during vibration, and avoiding the spray unit arranged on the keel from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0027] Figure 2 is a schematic diagram of a first connecting sleeve of the present invention;

[0028] Figure 3 A half-section view of the first connecting sleeve of the present invention;

[0029] Figure 4 is a schematic diagram of a second connecting sleeve of the present invention;

[0030] Figure 5 is a schematic diagram of a spreader unit of the present invention;

[0031] Figure 6 is a schematic diagram of a diagonal-stayed unit of the present invention;

[0032] Figure 7 It is a schematic diagram of the smoking pipe of the present invention.

[0033] In the above drawings, the corresponding reference numerals are as follows:

[0034] 1-keel, 11-main keel, 12-secondary keel, 13-side keel, 14-cross bracing keel, 2-hanger, 21-slant-stayed unit, 211-adjustable buckle, 212-rotating roller, 213-pull rope, 214-locking block, 22-hanger unit, 221-ceiling screw, 222-connecting bent plate, 223-screw nut, 224-elastic buffer block, 225-positioning telescopic rod, 3-ceiling board, 4-spray unit, 5-first connecting sleeve, 51-first mounting part, 511-buckle hole, 512-opening slot, 52-buffer part, 521-fixing plate, 522-shock absorbing block, 5221-bottom barrel, 5222-sliding barrel, 5223-compression spring, 523-elastic member, 6-second connecting sleeve, 61-second mounting part, 611-second opening slot, 7-smoke exhaust unit, 71-exhaust fan, 72-smoking pipe, 73-suction hole. DETAILED DESCRIPTION

[0035] In conjunction with the accompanying drawings, the technical solution of the present invention is clearly and completely described through the specific implementation methods of the embodiments of the present invention.

[0036] Embodiment 1:

[0037] like Figure 1A fire-fighting earthquake-resistant ceiling is shown, comprising a keel 1, a hanger 2, a ceiling board 3 and a sprinkler unit 4. The keel 1 is selected from different types of keels such as I-beam keels, T-shaped keels, etc. according to the actual environment. In this embodiment, the preferred T-shaped keel is used, including a main keel 11, a secondary keel 12 and a side keel 13. The ceiling board 3 is a fire-proof and sound-insulating mineral wool board. A plurality of main keels 11 are arranged in parallel and suspended on the ceiling by a plurality of the hangers 2, and the secondary keels 12 are arranged vertically between the main keels 11; the side keels 13 are arranged around the wall, and the two end frames of the main keels 11 are arranged on the side keels 13, the spray unit 4 is arranged on the keel 1, and the ceiling board 3 is arranged in the grid formed by the keel 1; the main keel 11 and the secondary keel 12 are connected by a first connecting sleeve 5, and the connecting sleeve is used to buffer the stress transfer between the main keel 11 and the secondary keel 12; a second connecting sleeve 6 is arranged between the main keel 11 and the side keel 13, and the second connecting sleeve 6 is used to buffer the stress transfer between the main keel 11 and the side keel 13; a cross-bracing keel 14 is arranged between the secondary keels 12, and the spray unit 4 is arranged on the cross-bracing keel 14.

[0038] Specifically, from Figure 2 and Figure 3 It can be seen that the first connecting sleeve 5 includes a first mounting portion 51 and a buffer portion 52. The first mounting portion 51 is provided with a snap hole 511, and the main keel 11 is slidably arranged in the snap hole 511. The first mounting portion 51 is symmetrically provided with open slots 512 on both sides, and the open slots 512 open downward. The buffer portion 52 includes a fixing plate 521 symmetrically arranged on both sides of the vertical rib plate of the T-shaped keel 1, and the fixing plate 521 can be fixedly arranged on the keel 1 by bolt connection. The upper ends of the two fixing plates 521 are provided with a bent plate structure facing outward, and the fixing plates 521 are slidably arranged at the bottom of the open slot 512 through the bent plate structure, and the buffer unit is arranged at one end of the fixing plate 521. The buffer unit includes a shock absorbing block 522 and an elastic member 523. The shock absorbing block 522 is fixedly arranged on the fixing plate 521, and the two ends of the elastic member 523 are respectively abutted against the shock absorbing block 522 and the first mounting portion 51, and the elastic member 523 is preferably a spring. The shock absorbing block 522 includes a bottom barrel 5221 fixed to one end of the fixed plate 521, a sliding barrel 5222 with an opening opposite to the bottom barrel 5221, a barrel diameter of the sliding barrel 5222 is slightly larger than the bottom barrel 5221, and the sliding barrel 5222 can slide on the bottom barrel 5221 with a certain resistance, a compression spring 5223 is arranged between the bottom barrel 5221 and the sliding barrel 5222 for resetting the bottom barrel 5221 and the sliding barrel 5222, and the bottom barrel 5221 and the sliding barrel 5222 are made of friction-resistant materials with a certain friction force. The shock absorbing block 522 consumes the energy generated by the vibration through the friction when sliding between the bottom barrel 5221 and the sliding barrel 5222.

[0039] It should be noted that the vibration of the house can be decomposed into vertical vibration and horizontal vibration, which can be subdivided into Figure 1 The vibration in the x, y, and z directions of the main keel 11, and when the main keel 11 vibrates in the y direction, the main keel 11 is relatively close to or away from the end of the secondary keel 12. At this time, the fixing plate 521 in the first connecting sleeve 5 can slide along the opening groove 512, and the spring deforms to absorb energy, and the shock absorbing block 522 releases the energy generated by the vibration in the form of frictional heat, thereby playing a buffering and shock absorbing role in the y direction.

[0040] The structure of the second connecting sleeve 6 is similar to that of the first connecting sleeve 5. Figure 4 As shown, it includes a second mounting portion 61 and the buffer portion 52. The second mounting portion 61 is fixedly mounted on the vertical rib of the side keel 13 and is provided with a second opening groove 611 adapted to the main keel 11. The buffer portion 52 in the second connecting sleeve 6 has the same structure as the first connecting sleeve 5 and is slidably arranged in the second mounting portion 61. The buffer portion 52 is arranged at the end of the main keel 11, and the two ends of the elastic member 523 therein respectively abut against the shock absorbing block 522 and the second mounting portion 61.

[0041] The spray unit 4 includes a box body arranged on the horizontal bracing keel 14, a three-way valve is arranged in the box body, the three-way valve is connected to two fire sprinklers and a fire hose, and the three-way valve and the fire hose are connected through a hose to avoid damage during vibration. The outlets of the two fire sprinklers are respectively facing the inside and below of the suspended ceiling. When there is a fire, the thermal unit on the fire sprinkler is automatically triggered to make the fire sprinkler discharge water to deal with the fire inside and below the suspended ceiling.

[0042] The vibration is mainly transmitted to the main keel 11 by the side keel 13 fixedly connected to the wall of the house. When the main keel 11 is vibrated, it can be relatively close to or away from the side keel 13 along the x-axis direction. At this time, the fixing plate 521 in the second connecting sleeve 6 can slide along the opening groove 512 of the second mounting portion 61, and the spring produces deformation to absorb energy, and the shock-absorbing block 522 releases the energy generated by the vibration in the form of frictional heat, which plays a buffering and shock-absorbing role in the x-axis direction. By reducing the vibration in the x-direction received by the main keel 11, the vibration in the x-direction received by the secondary keel 12 is reduced or avoided. Through the buffering of the first connecting sleeve 5 and the second connecting sleeve 6, the vibration of the secondary keel 12 in the x- and y-axis directions is reduced or avoided, and the horizontal vibration received by the cross-bracing keel 14 arranged between the secondary keels 12 is naturally much smaller. The spray unit 4 is arranged on the cross-bracing keel 14, which effectively reduces the vibration received by the spray unit 4 and avoids the damage and failure of the thermal sensitive unit of the spray unit 4 during vibration. By providing a connecting sleeve at the connection of the keel 1 , the anti-seismic energy, overall strength and service life of the ceiling keel 1 are greatly improved, and the spray unit 4 provided on the keel 1 is prevented from being damaged in any way.

[0043] Embodiment 2:

[0044] Furthermore, the first embodiment reduces the vibration of the suspended ceiling in the horizontal direction. In order to further improve the seismic effect of the suspended ceiling, based on the first embodiment, Figure 5 and Figure 6 As shown, the hanger provided in this embodiment is not a single steel wire rope, hanging rod, screw rod, etc. commonly used in the prior art. This hanger structure can only provide an upward pulling force to the keel. In order to prevent the ceiling board from floating up and down when negative wind pressure is generated indoors, an additional counter-support pressure rod is often set on the upper surface of the main keel. Although the counter-support plate can suppress the vibration of the keel along the y-axis direction to a certain extent, the counter-support pressure rod will greatly increase the process and labor intensity during the installation of the ceiling, and will also increase the stress on the main keel, exacerbating the fracture of the keel.

[0045] Therefore, the hanger 2 of this embodiment includes a diagonal unit 21 and a hanger unit 22. The hanger unit 22 includes a distance-adjusting end. The distance-adjusting end is provided with a ceiling screw 221 and a connecting bent plate 222. One end of the connecting bent plate 222 is clamped and hangs the main keel 11 through a buckle 226, and the other end is penetrated by the ceiling screw 221. One end of the ceiling screw 221 is connected to the ceiling. Two screw nuts 223 are provided on the ceiling screw, and the two screw nuts 223 are respectively arranged on both sides of the connecting bent plate 222. The main keel 11 is continuously suspended by the ceiling screw 221. The two screw nuts 223 on the ceiling screw 221 respectively limit the displacement of the connecting bent plate 222 up and down, and the overall length of the hanger unit 22 can also be adjusted by rotating the two screw nuts 223 to adapt to ceilings of different heights.

[0046] Further, such as Figure 5 As shown, the sling unit 22 also includes a buffer compensation end arranged between the connecting bent plate 222 and the main keel 11, and the buffer compensation end is provided with an elastic buffer block 224, and the elastic buffer block 224 always abuts against the top surface of the main keel 11. The structure of the elastic buffer block 224 in this embodiment is similar to the shock absorbing block 522 in the first embodiment, both of which are composed of two sliding structures with relative sliding friction and a reset spring group. The top of the elastic buffer block 224 is connected to a positioning telescopic rod 225, and the positioning telescopic rod 225 is preferably a screw nut structure, and the extension length of the screw is controlled by rotating the nut. The bottom of the elastic buffer block 224 faces the main keel 11, and the height of the elastic buffer block 224 on the connecting bent plate 222 is adjusted by positioning the telescopic rod 225, so that the elastic buffer block 224 always abuts against the main keel 11 downward, providing a downward thrust to the main keel 11, thereby preventing the ceiling panel from floating up and down. At the same time, a buffer structure is formed between the hanger unit 22 and the main keel 11 to absorb the vibration of the main keel 11 on the Y-axis, and cooperate with the first connecting plate and the second connecting plate to absorb the vibration in the horizontal direction, effectively ensuring the stability and strength of the ceiling.

[0047] Furthermore, if Figure 6 As shown, the inclined-stayed unit 21 includes a distance-adjusting buckle 211 and a pull rope 213. A rotating roller 212 is provided at the lower end of the distance-adjusting buckle 211. The pull rope 213 is taut, and the two ends are respectively connected to the two ends of the main keel 11. The middle part of the pull rope 213 is wound around the rotating roller 212. The pull rope 213 is used to assist in lifting the main keel 11. The end of the pull rope 213 is arranged near the connection between the sling unit 22 and the main keel 11. Since the main keel 11 is buckled on the two connecting bent plates, the main keel 11 will only receive an upward supporting force when it contacts the connecting bent plate 222. If the vibration floating is too large, the elastic buffer block 224 will be compressed to a certain extent in order to absorb the vibration. At this time, the keel 1 can vibrate up and down, but the pull rope 213 can always provide an upward pulling force to the keel 1, effectively reducing the impact on the sling unit 22. At the same time, the tension of the pull rope 213 can be adjusted by increasing the height of the rotating roller 212, and the lock block 214 connected by the positioning telescopic rod 225 cooperates with the rotating roller 212 to press the pull rope 213 to prevent the pull rope 213 from sliding, so that the rotating roller 212 is at the center position of the pull rope 213, ensuring the tension balance at both ends of the pull rope 213.

[0048] Embodiment three:

[0049] Existing office buildings do not have exhaust outlets or only have them in a few fixed areas. When a fire occurs, the smoke generated by the fire will quickly fill the entire office area. To this end, this embodiment is still equipped with a smoke exhaust unit 7 based on the above embodiment. Figure 1 and Figure 7 As shown, the smoke exhaust unit 7 includes an exhaust fan 71 suspended from the ceiling, a smoking pipe 72 is provided on the keel 1 along the length direction of the keel 1, and a suction hole 73 connected to the bottom surface of the ceiling is provided on the smoking pipe 72. One end of the smoking pipe 72 is closed, and the other end is connected to the exhaust fan.

[0050] Specifically, the fan is connected to an external power supply and a sensor, and the sensor can be a stable sensor or a delay sensor. The fan exhaust port can be directly connected to the ventilation duct. When the internal space of the ceiling is large, the gas can also be directly discharged into the ceiling. However, in order to avoid the situation that when a fire occurs inside the ceiling, water splashes into the fan and causes the fan to short-circuit when water is sprayed inside the ceiling to extinguish the fire, the fan outlet is set at a high place. The fan inlet can be set with multiple parallel or series pipes, and a smoking pipe 72 is laid along the surface of the keel 1, and suction holes 73 are evenly set on the smoking pipe 72. In the figure, a smoking pipe 72 is only set on a single cross-bracing keel 14. According to actual conditions, the same smoking pipe 72 can be set on the secondary keel 12 and the main keel 11 and connected to the exhaust fan 71 at different positions. The smoke exhaust unit 7 enables the fan to expand the smoke absorption range, and effectively absorb the smoke under the ceiling in a timely manner when a fire occurs, providing an escape environment and escape time for people in distress.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention.

Claims

1. A fire-fighting earthquake-resistant ceiling, comprising a keel (1), a hanger (2), a ceiling board (3) and a sprinkler unit (4), wherein the keel (1) comprises a main keel (11), a secondary keel (12) and a side keel (13), a plurality of main keels (11) are arranged in parallel and suspended on the ceiling through a plurality of hangers (2), the secondary keels (12) are arranged vertically between the main keels (11); the side keels (13) are arranged around a wall, the two end frames of the main keel (11) are arranged on the side keels (13), the sprinkler unit (4) is arranged on the keel (1), and the ceiling board (3) is arranged in a grid formed by the keels (1); characterized in that: The main keel (11) and the secondary keel (12) are connected via a first connecting sleeve (5), the first connecting sleeve (5) being used to buffer stress transfer between the main keel (11) and the secondary keel (12); a second connecting sleeve (6) is provided between the main keel (11) and the side keel (13), the second connecting sleeve (6) being used to buffer stress transfer between the main keel (11) and the side keel (13); a cross bracing keel (14) is provided between the secondary keels (12), the spray unit (4) being provided on the cross bracing keel (14); the first connecting sleeve (5) comprises a first mounting portion The first mounting portion (51) is buckled on the main keel (11), the buffer portion (52) is fixedly arranged at the end of the secondary keel (12), the buffer portion (52) is slidably arranged in the first mounting portion (51), and the end of the buffer portion (52) abuts against the first mounting portion (51) through a buffer unit; the first mounting portion (51) is provided with a buckle hole (511), the main keel (11) can be slidably arranged in the buckle hole (511), the first mounting portion (51) is symmetrically provided with opening grooves (512) on both sides, and the secondary keel (12) is provided with a buckle hole (511) on both sides. ) end can be inserted into the open groove (512); the buffer portion (52) comprises fixed plates (521) symmetrically arranged on both sides of the vertical rib plate of the keel (1); the upper ends of the two fixed plates (521) are provided with bent plates facing outward; the fixed plates (521) are slidably arranged at the bottom of the open groove (512) through the bent plate structure; the buffer unit is arranged at one end of the fixed plate (521); the buffer unit comprises a shock absorbing block (522) and an elastic member (523); the shock absorbing block (522) is fixedly arranged on the fixed plate (521); and the two ends of the elastic member (523) respectively abut against the shock absorbing block (512). 522) and the first mounting portion (51); the shock absorbing block (522) comprises a bottom barrel (5221) fixed to one end of the fixing plate (521); the outer cover of the bottom barrel (5221) is provided with a sliding barrel (5222) opposite to the opening of the bottom barrel (5221); the sliding barrel (5222) can generate sliding friction with the bottom barrel (5221); a compression spring (5223) is provided between the bottom barrel (5221) and the sliding barrel (5222); the shock absorbing block (522) consumes energy generated by vibration through friction when sliding between the bottom barrel (5221) and the sliding barrel (5222).

2. The fire-fighting earthquake-resistant ceiling according to claim 1, characterized in that: The second connecting sleeve (6) comprises a second mounting portion (61) and the buffer portion (52), the second mounting portion (61) being fixedly arranged on the vertical rib plate of the side keel (13), the buffer portion (52) of the second connecting sleeve (6) being slidably arranged in the second mounting portion (61), the buffer portion (52) being arranged at the end of the main keel (11), and the elastic component (523) in the buffer portion (52) being in contact with the second mounting portion (61).

3. The fire-fighting earthquake-resistant ceiling according to claim 1, characterized in that: The hanger (2) comprises a diagonal unit (21) and a hanger unit (22), the hanger unit (22) comprising a distance-adjusting end, the distance-adjusting end being provided with a ceiling screw (221) and a connecting bent plate (222), one end of the connecting bent plate (222) being clamped to the main keel (11), and the other end being penetrated by the ceiling screw (221), the ceiling screw (221) being provided with two screw nuts (223), and the two screw nuts (223) being respectively arranged on both sides of the connecting bent plate (222).

4. The fire-fighting earthquake-resistant ceiling according to claim 3, characterized in that: The sling unit (22) further comprises a buffer compensation end arranged between the connecting bent plate (222) and the main keel (11), the buffer compensation end being provided with an elastic buffer block (224), the elastic buffer block (224) always abutting against the top surface of the main keel (11).

5. The fire-fighting earthquake-resistant ceiling according to claim 4, characterized in that: The inclined-stayed unit (21) comprises a distance-adjusting buckle (211) and a pull rope (213); a rotating roller (212) is provided at the lower end of the distance-adjusting buckle (211); the pull rope (213) is taut and has two ends respectively connected to two ends of the main keel (11); and a middle portion of the pull rope (213) is wound around the rotating roller (212).

6. The fire-fighting earthquake-resistant ceiling according to claim 1, characterized in that: The spray unit (4) comprises a three-way valve, the three-way valve being connected to two fire sprinklers and a fire hose, the outlets of the two fire sprinklers facing the inside of the suspended ceiling and below the suspended ceiling respectively.

7. The fire-fighting earthquake-resistant ceiling according to claim 1, characterized in that: It also includes a smoke exhaust unit (7), the smoke exhaust unit (7) including an exhaust fan (71) suspended from the ceiling, a smoking pipe (72) is provided on the keel (1) along the length direction of the keel (1), the smoking pipe (72) is provided with an air suction hole (73) connected to the bottom surface of the suspended ceiling, one end of the smoking pipe (72) is closed, and the other end is connected to the exhaust fan (71).

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