Liftable fireproof device

Abstract

The utility model relates to a liftable fireproof device which comprises a fireproof top frame, a winding shaft, a lifting frame and a fireproof curtain, the lifting frame is arranged below the fireproof top frame, and the winding shaft is rotationally connected to the fireproof top frame; the lifting frame comprises an inner-layer frame and an outer-layer frame, and the inner-layer frame and the outer-layer frame are fixedly connected and lift at the same time; a plurality of inner anchoring sites are evenly arranged on the periphery of the inner layer frame, a plurality of outer anchoring sites are evenly arranged on the periphery of the outer layer frame, and the positions of the inner anchoring sites correspond to the positions of the outer anchoring sites one to one. An inner supporting plate is arranged at the position, corresponding to the inner layer frame, of the fireproof top frame, an outer supporting plate is arranged at the position, corresponding to the outer layer frame, of the fireproof top frame, pulleys are arranged at the bottoms of the inner supporting plate and the outer supporting plate, an inner steel wire is connected with an inner anchoring site and then connected with a winding shaft through the pulley of the inner supporting plate, and an outer steel wire is connected with an outer anchoring site and then connected with the winding shaft through the pulley of the outer supporting plate. The winding shaft winds or unwinds the inner steel wire and the outer steel wire, so that the lifting frame ascends or descends, and then the fireproof curtain is folded or unfolded.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire protection devices, and in particular relates to a liftable fire protection device. Background Art

[0002] With the development of fire prevention technology in my country and the continuous improvement of scientific and technological innovation requirements, the application scenarios of fire prevention technology are becoming more and more diversified. For example, people are paying more and more attention to the field of indoor fire prevention. In residential buildings, office buildings, shopping malls, factories and other indoor environments, a large number of items that are highly related to people’s production and life are placed. They have high economic value, such as valuable electronic machines, instruments, important daily necessities, etc. This puts forward new requirements for indoor fire prevention.

[0003] At present, there is no unified standard for fire protection of small indoor items. Generally, the devices are simple, and most of them require manual operation to deploy the fire protection device to cover the protected items. Or, if there is no special fire protection cover device indoors, the only way is to open the sprinkler on the roof through the fire alarm device to spray water indiscriminately indoors, which will damage electronic equipment and cause losses. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in the field of indoor fire protection, in response to the fire protection needs of small items, traditional fire protection devices need to be manually deployed when a fire occurs, or indiscriminately spray water through indoor fire sprinklers, which may damage electronic devices or non-waterproof devices / furniture.

[0005] The utility model provides a liftable fireproof device, comprising a fireproof top frame, a winding shaft, a lifting frame, and a fireproof curtain connected between the fireproof top frame and the lifting frame, wherein the lifting frame is arranged below the fireproof top frame, and the winding shaft is rotatably connected to the fireproof top frame;

[0006] The lifting frame includes an inner frame and an outer frame, the inner frame is fixedly connected to the outer frame and can be lifted and lowered at the same time; a number of inner anchoring sites are evenly arranged around the inner frame, and a number of outer anchoring sites are evenly arranged around the outer frame, and the positions of the inner anchoring sites correspond to the outer anchoring sites one by one;

[0007] An inner support plate is provided at the position of the fireproof top frame corresponding to the inner frame, an outer support plate is provided at the position of the fireproof top frame corresponding to the outer frame, an inner fire curtain is provided between the inner support plate and the inner frame, an outer fire curtain is provided between the outer support plate and the outer frame, pulleys are provided at the bottom of the inner support plate and the outer support plate, the inner steel wire is connected to the inner anchoring position and then connected to the winding shaft through the pulley of the inner support plate, the outer steel wire is connected to the outer anchoring position and then connected to the winding shaft through the pulley of the outer support plate, the winding shaft realizes the rising or falling of the lifting frame by winding or unwinding the inner steel wire and the outer steel wire, thereby realizing the folding or unfolding of the fire curtain.

[0008] Optionally, the fireproof top frame includes a top cover component and a support portion, wherein the top cover component has a top plate and side plates around it, and can cover the protected equipment from above the protected equipment to achieve top fire protection;

[0009] The support part includes a plurality of vertical support rods, the top ends of which are connected to the top plate of the top cover component, and the bottom ends of which are detachably connected to the top of the protected equipment, providing support for the top cover component, the winding shaft and the lifting frame.

[0010] Further optionally, one end of the winding shaft is rotatably connected to the side plate of the top cover component, and the other end is connected to the rotating shaft of the tubular motor. The tubular motor is fixed on the side plate on the opposite side, that is, the two ends of the winding shaft point to the opposite sides of the fireproof top frame respectively, and the tubular motor can drive the winding shaft to rotate forward and reverse.

[0011] Optionally, the top of the outer support plate is fixedly connected to the top plate of the top cover component, the bottom of the outer support plate is suspended and connected to pulley one, the outer side surface of the outer support plate is tightly attached to the inner side surface of the side plate of the top cover component, and is arranged around the side plate.

[0012] Optionally, the top of the inner support plate is fixedly connected to the top plate of the top cover component, the bottom of the inner support plate is suspended and connected to pulley 2, the inner support plate is parallel to the outer support plate, the inner support plate is arranged close to the inside of the top cover component, a certain distance is left between the inner support plate and the outer support plate, the outer side surface of the inner support plate is facing the inner side surface of the outer support plate, and the inner support plate is arranged around the bottom of the top plate.

[0013] Optionally, the inner rack is concentrically arranged with the outer rack, the center of the lifting rack and the center of the fireproof top rack are on the same vertical line; the inner rack and the outer rack are at the same height, the inner rack is inside the outer rack and parallel to the outer rack, and the distance between the inner rack and the outer rack is equal to the distance between the inner support plate and the outer support plate;

[0014] The outer frame is wound around the center of the lifting frame, and the inner frame is also wound around the center of the lifting frame. A number of connecting rods are evenly arranged between the inner frame and the outer frame, so that the inner frame and the outer frame are connected as a whole.

[0015] Further optionally, the outer anchoring site is arranged on the outer side of the outer layer frame, and the inner anchoring site is arranged on the inner side of the inner layer frame.

[0016] Further optionally, a plurality of outer positioning rings are sequentially arranged between the outer frame and the outer support plate from top to bottom;

[0017] The outer positioning ring includes an outer positioning head and a first auxiliary plate frame, the outer positioning head includes an outer positioning groove and a second auxiliary plate frame, the first auxiliary plate frame and the second auxiliary plate frame are vertically arranged and parallel to each other, and are arranged along the outer frame in a circle; the upper and lower ends of the first auxiliary plate frame and the second auxiliary plate frame are provided with hook grooves for hanging and supporting the outer fire curtain;

[0018] The first auxiliary plate frame and the middle part of the second auxiliary plate frame are fixedly connected by bolts, and a plurality of bolts are evenly arranged around the outer positioning ring, and there is a certain distance between the first auxiliary plate and the second auxiliary plate;

[0019] The longitudinal section of the outer positioning groove is conical and protrudes toward the outside of the outer frame. The top end of the outer positioning groove is clamped with the hook groove at the top of the second auxiliary plate frame, and the bottom end of the outer positioning groove is clamped with the hook groove at the bottom of the second auxiliary plate frame, thereby fixing the outer positioning groove and the second auxiliary plate frame.

[0020] Further optionally, an outer fire curtain is arranged between two upper and lower adjacent outer positioning rings, and the outer fire curtain includes two layers, the top of the outer fire curtain is connected to the hook groove at the bottom of the second auxiliary plate frame above, and the bottom of the outer fire curtain is connected to the hook groove at the top of the second auxiliary plate frame below; the top of the inner fire curtain is connected to the hook groove at the bottom of the first auxiliary plate frame above, and the bottom of the inner fire curtain is connected to the hook groove at the top of the first auxiliary plate frame below, thereby fixing the double-layer outer fire curtain.

[0021] Further optionally, a plurality of inner positioning rings are sequentially arranged between the inner frame and the inner support plate from top to bottom;

[0022] The inner positioning ring includes an inner positioning head and a third auxiliary plate frame, the inner positioning head includes an inner positioning groove and a fourth auxiliary plate frame, the third auxiliary plate frame and the fourth auxiliary plate frame are vertically arranged and parallel to each other, and are arranged along the inner frame in a circle; the upper and lower ends of the third auxiliary plate frame and the fourth auxiliary plate frame are provided with hook grooves for hanging and supporting the outer fire curtain;

[0023] The middle parts of the third auxiliary plate frame and the fourth auxiliary plate frame are fixedly connected by bolts, and a plurality of bolts are evenly arranged around the inner positioning ring, and there is a certain distance between the third auxiliary plate frame and the fourth auxiliary plate frame;

[0024] The longitudinal section of the inner positioning groove is conical and protrudes toward the inner side of the inner frame. The top end of the inner positioning groove is clamped with the hook groove at the top of the fourth auxiliary plate frame, and the bottom end of the inner positioning groove is clamped with the hook groove at the bottom of the fourth auxiliary plate frame, thereby fixing the inner positioning groove and the fourth auxiliary plate frame.

[0025] Further optionally, an inner fire curtain is arranged between two upper and lower adjacent inner positioning rings, and the inner fire curtain includes two layers, the top of the outer inner fire curtain is connected to the hook groove at the bottom of the third auxiliary plate frame above, and the bottom of the outer inner fire curtain is connected to the hook groove at the top of the third auxiliary plate frame below; the top of the inner inner fire curtain is connected to the hook groove at the bottom of the fourth auxiliary plate frame above, and the bottom of the inner inner fire curtain is connected to the hook groove at the top of the fourth auxiliary plate frame below, thereby fixing the double-layer inner fire curtain.

[0026] The liftable fire protection device of the utility model has the following beneficial effects:

[0027] (1) The inner / outer steel wire is reeled or unreeled by rotating the winding shaft, thereby controlling the lifting frame to rise or fall, thereby realizing the folding or unfolding of the fire curtain. When there is a fire, the fire curtain can be unfolded by unwinding the winding shaft to protect the internal equipment;

[0028] (2) The lifting frame has double layers inside and outside, and can be equipped with double layers of fire curtains inside and outside to improve the fire prevention effect. In addition, the double-layer lifting frame is more stable when lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the liftable fire protection device;

[0030] Figure 2 It is a schematic diagram of the connection between the inner / outer support plate and the inner / outer frame;

[0031] Figure 3 Schematic diagram of the outer positioning ring and the inner positioning ring;

[0032] Figure 4 This is a top view of the fireproof top frame.

[0033] In the accompanying drawings, 1-fireproof top frame, 2-winding shaft, 3-inner frame, 4-outer frame, 5-inner anchoring site, 6-outer anchoring site, 7-inner support plate, 8-outer support plate, 9-pulley one, 10-pulley two, 11-top plate, 12-side plate, 13-support rod, 14-tubular motor, 15-connecting rod, 16-outer fire curtain, 17-inner fire curtain, 18-first auxiliary plate frame, 19-second auxiliary plate frame, 20-third auxiliary plate frame, 21-fourth auxiliary plate frame, 22-outer positioning groove, 23-inner positioning groove, 24-hook groove, 25-through hole, 26-outer steel wire, 27-inner steel wire. DETAILED DESCRIPTION

[0034] This embodiment provides a fire protection device that can be raised and lowered. Figure 1-Figure 4 As shown, it includes a fireproof top frame 1, a winding shaft 2, a lifting frame, and a fireproof curtain connected between the fireproof top frame 1 and the lifting frame. The lifting frame is arranged below the fireproof top frame 1, and the winding shaft 2 is rotatably connected to the fireproof top frame 1;

[0035] The lifting frame includes an inner frame 3 and an outer frame 4, the inner frame 3 and the outer frame 4 are fixedly connected and lifted at the same time; a plurality of inner anchoring sites 5 are evenly arranged around the inner frame 3, and a plurality of outer anchoring sites 6 are evenly arranged around the outer frame 4, and the positions of the inner anchoring sites 5 and the outer anchoring sites 6 correspond to each other one by one;

[0036] An inner support plate 7 is provided at the position of the fireproof top frame 1 corresponding to the inner frame 3, and an outer support plate 8 is provided at the position of the fireproof top frame 1 corresponding to the outer frame 4. An inner fire curtain 17 is provided between the inner support plate 7 and the inner frame 3, and an outer fire curtain 16 is provided between the outer support plate 8 and the outer frame 4. Pullies are provided at the bottom of the inner support plate 7 and the outer support plate 8. The inner steel wire 27 is connected to the inner anchoring point 5 and then connected to the winding shaft 2 through the pulley of the inner support plate 7. The outer steel wire 26 is connected to the outer anchoring point 6 and then connected to the winding shaft 2 through the pulley of the outer support plate 8. The winding shaft 2 realizes the rising or falling of the lifting frame by winding or unwinding the inner steel wire 27 and the outer steel wire 26, thereby realizing the folding or unfolding of the fire curtain.

[0037] Optionally, the fireproof top frame 1 includes a top cover component and a support portion, wherein the top cover component has a top plate 11 and side plates 12 around it, and can cover the protected equipment from above the protected equipment to achieve top fire protection;

[0038] The support portion includes a plurality of vertical support rods 13, the top ends of the support rods 13 are connected to the top plate 11 of the top cover component, and the bottom ends are detachably connected to the top of the protected equipment, providing support for the top cover component, the winding shaft 2 and the lifting frame.

[0039] Further optionally, one end of the winding shaft 2 is rotatably connected to the side plate 12 of the top cover component, and the other end is connected to the rotating shaft of the tubular motor 14. The tubular motor 14 is fixed on the side plate 12 on the opposite side, that is, the two ends of the winding shaft 2 point to the opposite sides of the fireproof top frame 1 respectively, and the tubular motor 14 can drive the winding shaft 2 to rotate forward and reverse.

[0040] Further optionally, the shape of the cross section of the fireproof top frame 1 is selected from a circle, square, triangle, diamond or other irregular shapes, and the cross-sectional shapes of the inner frame 3 and the outer frame 4 are the same as the fireproof top frame 1, so that the overall fire protection device can adapt to placement spaces and protected equipment of different shapes, thereby saving space and making full use of limited indoor space.

[0041] Optionally, the top of the outer support plate 8 is fixedly connected to the top plate 11 of the top cover component, the bottom of the outer support plate 8 is suspended and connected to a pulley 9, the outer side surface of the outer support plate 8 is tightly attached to the inner side surface of the side plate 12 of the top cover component, and is arranged around the side plate 12.

[0042] Further optionally, the rotating shaft of the pulley 9 is horizontally arranged, and a guard plate 1 is respectively provided at both ends of the rotating shaft 1. The top of the guard plate 1 is connected to the bottom of the outer support plate 8, so that the pulley 9 is fixed to the bottom of the outer support plate 8.

[0043] Optionally, the top of the inner support plate 7 is fixedly connected to the top plate 11 of the top cover component, the bottom of the inner support plate 7 is suspended and connected to the pulley 10, the inner support plate 7 is parallel to the outer support plate 8, the inner support plate 7 is arranged close to the inside of the top cover component, a certain distance is left between the inner support plate 7 and the outer support plate 8, the outer side surface of the inner support plate 7 is facing the inner side surface of the outer support plate 8, and the inner support plate 7 is arranged around the bottom of the top plate 11.

[0044] Further optionally, the rotating shaft 2 of the pulley 2 10 is horizontally arranged, and a guard plate 2 is respectively provided at both ends of the rotating shaft 2. The top of the guard plate 2 is connected to the bottom of the inner support plate 7 to fix the pulley 2 10 to the bottom of the inner support plate 7.

[0045] Optionally, the inner frame 3 and the outer frame 4 are arranged concentrically, and the center of the lifting frame and the center of the fireproof top frame 1 are on the same vertical line; the inner frame 3 and the outer frame 4 are at the same height, the inner frame 3 is inside the outer frame 4 and parallel to the outer frame 4, and the distance between the inner frame 3 and the outer frame 4 is equal to the distance between the inner support plate 7 and the outer support plate 8;

[0046] The outer frame 4 is wound around the center of the lifting frame, and the inner frame 3 is also wound around the center of the lifting frame. A number of connecting rods 15 are evenly arranged between the inner frame 3 and the outer frame 4, so that the inner frame 3 and the outer frame 4 are connected as a whole.

[0047] Further optionally, the outer anchoring site 6 is arranged on the outer side of the outer layer frame 4 , and the inner anchoring site 5 is arranged on the inner side of the inner layer frame 3 .

[0048] Further optionally, a plurality of outer positioning rings are sequentially arranged between the outer frame 4 and the outer support plate 8 from top to bottom;

[0049] The outer positioning ring includes an outer positioning head and a first auxiliary plate frame 18, the outer positioning head includes an outer positioning groove 22 and a second auxiliary plate frame 19, the first auxiliary plate frame 18 and the second auxiliary plate frame 19 are vertically arranged and parallel to each other, and are arranged along the outer frame 4 in one circle; the upper and lower ends of the first auxiliary plate frame 18 and the second auxiliary plate frame 19 are provided with hook grooves 24 for hanging and supporting the outer fire curtain 16;

[0050] The middle parts of the first auxiliary plate frame 18 and the second auxiliary plate frame 19 are fixedly connected by bolts, and a plurality of bolts are evenly arranged around the outer positioning ring, and there is a certain distance between the first auxiliary plate and the second auxiliary plate;

[0051] The longitudinal section of the outer positioning groove 22 is conical and protrudes toward the outside of the outer frame 4. The top end of the outer positioning groove 22 is engaged with the hook groove at the top of the second auxiliary plate frame 19, and the bottom end of the outer positioning groove 22 is engaged with the hook groove at the bottom of the second auxiliary plate frame 19, thereby fixing the outer positioning groove 22 and the second auxiliary plate frame 19. Compared with the second auxiliary plate frame 19, the first auxiliary plate frame 18 is closer to the inner frame 3.

[0052] Further optionally, the outer positioning groove 22 is hollow inside, and a pair of through holes 25 are provided at the position of the outer positioning groove 22 corresponding to the outer anchoring point 6. The two through holes are on the same vertical line, and the two through holes are respectively located on the upper side and the lower side of the outer positioning groove 22, so that the outer steel wire 26 connecting the external anchoring point 6 vertically passes through the pair of through holes, thereby connecting each outer positioning ring in series.

[0053] Further optionally, an outer fire curtain 16 is arranged between two upper and lower adjacent outer positioning rings, and the outer fire curtain 16 includes two layers, the top of the outer fire curtain 16 is connected to the hook groove at the bottom of the second auxiliary plate frame 19 above, and the bottom of the outer fire curtain 16 is connected to the hook groove at the top of the second auxiliary plate frame 19 below; the top of the inner fire curtain 16 is connected to the hook groove at the bottom of the first auxiliary plate frame 18 above, and the bottom of the inner fire curtain 16 is connected to the hook groove at the top of the first auxiliary plate frame 18 below, thereby fixing the double-layer outer fire curtain 16.

[0054] Further optionally, a plurality of inner positioning rings are sequentially arranged between the inner frame 3 and the inner support plate 7 from top to bottom;

[0055] The inner positioning ring includes an inner positioning head and a third auxiliary plate frame 20, the inner positioning head includes an inner positioning groove 23 and a fourth auxiliary plate frame 21, the third auxiliary plate frame 20 and the fourth auxiliary plate frame 21 are vertically arranged and parallel to each other, and are arranged around the inner frame 3; the upper and lower ends of the third auxiliary plate frame 20 and the fourth auxiliary plate frame 21 are provided with hook grooves for hanging and supporting the outer fire curtain 16;

[0056] The middle parts of the third auxiliary plate frame 20 and the fourth auxiliary plate frame 21 are fixedly connected by bolts, and a plurality of bolts are evenly arranged around the inner positioning ring, and there is a certain distance between the third auxiliary plate frame 20 and the fourth auxiliary plate frame 21;

[0057] The longitudinal section of the inner positioning groove 23 is conical and protrudes toward the inner side of the inner frame 3. The top end of the inner positioning groove 23 is engaged with the hook groove at the top of the fourth auxiliary plate frame 21, and the bottom end of the inner positioning groove 23 is engaged with the hook groove at the bottom of the fourth auxiliary plate frame 21, thereby fixing the inner positioning groove 23 and the fourth auxiliary plate frame 21. Compared with the fourth auxiliary plate frame 21, the third auxiliary plate frame 20 is closer to the outer frame 4.

[0058] Further optionally, the inner positioning groove 23 is hollow inside, and a pair of through holes are provided at the position of the inner positioning groove 23 corresponding to the inner anchoring point 5. The two through holes are on the same vertical line, and the two through holes are respectively located on the upper side and the lower side of the inner positioning groove 23, so that the inner steel wire 27 connecting the inner anchoring point 5 vertically passes through the pair of through holes, thereby connecting each inner positioning ring in series.

[0059] Further optionally, an inner fire curtain 17 is arranged between two adjacent inner positioning rings, and the inner fire curtain 17 includes two layers, an inner layer and an outer layer. The top of the outer inner fire curtain 17 is connected to the hook groove at the bottom of the third auxiliary plate frame 20 above, and the bottom of the outer inner fire curtain 17 is connected to the hook groove at the top of the third auxiliary plate frame 20 below; the top of the inner inner fire curtain 17 is connected to the hook groove at the bottom of the fourth auxiliary plate frame 21 above, and the bottom of the inner inner fire curtain 17 is connected to the hook groove at the top of the fourth auxiliary plate frame 21 below, thereby fixing the double-layer inner fire curtain 17.

[0060] Further optionally, the bottom outer positioning ring is fixed on the outer frame 4, the bottom inner positioning ring is fixed on the inner frame 3, the top outer positioning ring is connected to the bottom of the outer support plate 8 through the outer connecting plate, and the top inner positioning ring is connected to the bottom of the inner support plate 7 through the inner connecting plate. The outer connecting plate and the inner connecting plate are also arranged in a circle.

[0061] When a fire occurs and the fire curtain needs to be deployed, the control device in the central control room of the building controls the tubular motor 14 to rotate, driving the winding shaft 2 to rotate, and at the same time unwinding the outer steel wire 26 and the inner steel wire 27, and then continuing to unwind through pulley 1 9 and pulley 2 10, the outer frame 4 and the inner frame 3 descend smoothly, and each outer positioning ring and inner positioning ring naturally descends under the action of the gravity of the fire curtain, so that each outer fire curtain 16 and inner fire curtain 17 are vertically deployed until the lifting frame is lowered to the ground, forming a circle of fire cover around the protected equipment.

[0062] When the fire curtain needs to be rolled up, the control device controls the tubular motor 14 to rotate in the opposite direction, driving the winding shaft 2 to rotate in the opposite direction, and at the same time rolling up the outer steel wire 26 and the inner steel wire 27, and then continuing to roll up through pulley 1 9 and pulley 2 10, the outer layer frame 4 and the inner layer frame 3 rise steadily, the outer fire curtain 16 shrinks into between the two adjacent outer positioning rings, and then retracts into the space between the outer positioning ring and the inner positioning ring, and at the same time the inner fire curtain 17 shrinks into between the two adjacent inner positioning rings, and then retracts into the space between the outer positioning ring and the inner positioning ring, so that the fire curtain is retracted into the space between the outer positioning ring and the inner positioning ring, until the upper and lower adjacent outer (inner) positioning rings touch each other or almost touch each other, which is beneficial to saving the space occupied by the retracted fire curtain.

Claims

1. A fire protection device that can be raised and lowered, characterized in that: It includes a fireproof top frame, a winding shaft, a lifting frame, and a fireproof curtain connected between the fireproof top frame and the lifting frame. The lifting frame is arranged below the fireproof top frame, and the winding shaft is rotatably connected to the fireproof top frame. The lifting frame includes an inner frame and an outer frame, the inner frame is fixedly connected to the outer frame and can be lifted and lowered at the same time; a number of inner anchoring sites are evenly arranged around the inner frame, and a number of outer anchoring sites are evenly arranged around the outer frame, and the positions of the inner anchoring sites correspond to the outer anchoring sites one by one; An inner support plate is provided at the position of the fireproof top frame corresponding to the inner frame, an outer support plate is provided at the position of the fireproof top frame corresponding to the outer frame, an inner fire curtain is provided between the inner support plate and the inner frame, an outer fire curtain is provided between the outer support plate and the outer frame, pulleys are provided at the bottom of the inner support plate and the outer support plate, the inner steel wire is connected to the inner anchoring position and then connected to the winding shaft through the pulley of the inner support plate, the outer steel wire is connected to the outer anchoring position and then connected to the winding shaft through the pulley of the outer support plate, the winding shaft realizes the rising or falling of the lifting frame by winding or unwinding the inner steel wire and the outer steel wire, thereby realizing the folding or unfolding of the fire curtain.

2. The liftable fire protection device according to claim 1, characterized in that: The fireproof top frame includes a top cover component and a support portion. The top cover component has a top plate and side plates around it, and can cover the protected equipment from above the protected equipment to achieve top fire protection; The support part includes a plurality of vertical support rods, the top ends of which are connected to the top plate of the top cover component, and the bottom ends of which are detachably connected to the top of the protected equipment, providing support for the top cover component, the winding shaft and the lifting frame.

3. The liftable fire protection device according to claim 2, characterized in that: One end of the winding shaft is rotatably connected to the side plate of the top cover component, and the other end is connected to the rotating shaft of the tubular motor. The tubular motor is fixed on the side plate on the opposite side. The two ends of the winding shaft point to the opposite sides of the fireproof top frame respectively. The tubular motor can drive the winding shaft to rotate forward and reverse.

4. The liftable fire protection device according to claim 2, characterized in that: The top of the outer support plate is fixedly connected to the top plate of the top cover component, the bottom of the outer support plate is suspended and connected to a pulley, the outer side surface of the outer support plate is closely attached to the inner side surface of the side plate of the top cover component, and is arranged around the side plate.

5. The liftable fire protection device according to claim 4, characterized in that: The top of the inner support plate is fixedly connected to the top plate of the top cover component, the bottom of the inner support plate is suspended and connected to pulley 2, the inner support plate is parallel to the outer support plate, the inner support plate is arranged close to the inside of the top cover component, a certain distance is left between the inner support plate and the outer support plate, the outer side surface of the inner support plate is facing the inner side surface of the outer support plate, and the inner support plate is arranged around the bottom of the top plate.

6. The liftable fire protection device according to claim 5, characterized in that: The inner frame and the outer frame are arranged concentrically, and the center of the lifting frame and the center of the fireproof top frame are on the same vertical line; the inner frame and the outer frame are at the same height, the inner frame is inside the outer frame and parallel to the outer frame, and the distance between the inner frame and the outer frame is equal to the distance between the inner support plate and the outer support plate; The outer frame is wound around the center of the lifting frame, and the inner frame is also wound around the center of the lifting frame. A number of connecting rods are evenly arranged between the inner frame and the outer frame, so that the inner frame and the outer frame are connected as a whole; The outer anchoring site is arranged on the outer side of the outer layer frame, and the inner anchoring site is arranged on the inner side of the inner layer frame.

7. The liftable fire protection device according to claim 1, characterized in that: A plurality of outer positioning rings are sequentially arranged between the outer frame and the outer support plate from top to bottom; The outer positioning ring includes an outer positioning head and a first auxiliary plate frame, the outer positioning head includes an outer positioning groove and a second auxiliary plate frame, the first auxiliary plate frame and the second auxiliary plate frame are vertically arranged and parallel to each other, and are arranged along the outer frame in a circle; the upper and lower ends of the first auxiliary plate frame and the second auxiliary plate frame are provided with hook grooves for hanging and supporting the outer fire curtain; The first auxiliary plate frame and the middle part of the second auxiliary plate frame are fixedly connected by bolts, and a plurality of bolts are evenly arranged around the outer positioning ring, and there is a certain distance between the first auxiliary plate and the second auxiliary plate; The longitudinal section of the outer positioning groove is conical and protrudes toward the outside of the outer frame. The top end of the outer positioning groove is clamped with the hook groove at the top of the second auxiliary plate frame, and the bottom end of the outer positioning groove is clamped with the hook groove at the bottom of the second auxiliary plate frame, thereby fixing the outer positioning groove and the second auxiliary plate frame.

8. The liftable fire protection device according to claim 7, characterized in that: An outer fire curtain is arranged between two upper and lower adjacent outer positioning rings. The outer fire curtain includes two layers, an inner layer and an outer layer. The top of the outer fire curtain is connected to the hook groove at the bottom of the second auxiliary plate frame above, and the bottom of the outer fire curtain is connected to the hook groove at the top of the second auxiliary plate frame below; the top of the inner fire curtain is connected to the hook groove at the bottom of the first auxiliary plate frame above, and the bottom of the inner fire curtain is connected to the hook groove at the top of the first auxiliary plate frame below, thereby fixing the double-layer outer fire curtain.

9. The liftable fire protection device according to claim 1, characterized in that: A plurality of inner positioning rings are sequentially arranged between the inner frame and the inner support plate from top to bottom; The inner positioning ring includes an inner positioning head and a third auxiliary plate frame, the inner positioning head includes an inner positioning groove and a fourth auxiliary plate frame, the third auxiliary plate frame and the fourth auxiliary plate frame are vertically arranged and parallel to each other, and are arranged along the inner frame in a circle; the upper and lower ends of the third auxiliary plate frame and the fourth auxiliary plate frame are provided with hook grooves for hanging and supporting the outer fire curtain; The middle parts of the third auxiliary plate frame and the fourth auxiliary plate frame are fixedly connected by bolts, and a plurality of bolts are evenly arranged around the inner positioning ring, and there is a certain distance between the third auxiliary plate frame and the fourth auxiliary plate frame; The longitudinal section of the inner positioning groove is conical and protrudes toward the inner side of the inner frame. The top end of the inner positioning groove is clamped with the hook groove at the top of the fourth auxiliary plate frame, and the bottom end of the inner positioning groove is clamped with the hook groove at the bottom of the fourth auxiliary plate frame, thereby fixing the inner positioning groove and the fourth auxiliary plate frame.

10. The liftable fire protection device according to claim 9, characterized in that: An inner fire curtain is arranged between two adjacent inner positioning rings, and the inner fire curtain includes two layers, an inner layer and an outer layer. The top of the outer inner fire curtain is connected to the hook groove at the bottom of the third auxiliary plate frame above, and the bottom of the outer inner fire curtain is connected to the hook groove at the top of the third auxiliary plate frame below; the top of the inner inner fire curtain is connected to the hook groove at the bottom of the fourth auxiliary plate frame above, and the bottom of the inner inner fire curtain is connected to the hook groove at the top of the fourth auxiliary plate frame below, thereby fixing the double-layer inner fire curtain.

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