Fabricated calcium silicate board composite fireproof air duct

Abstract

The utility model relates to the technical field of calcium silicate fireproof air pipes, in particular to an assembly type calcium silicate board composite fireproof air pipe which comprises an air pipe base body, a calcium silicate board is fixedly connected in the air pipe base body in a sleeved mode, and one end of the air pipe base body is fixedly connected with a first installation frame. According to the utility model, the sleeving plate can abut against the inclined surface of the bottom end of the embedding seat, then the driving rod can drive the embedding seat to be inserted into the sleeving plate and clamped with the sleeving plate under the action of the compression spring, and then the hexagonal hole seat is rotated to drive the screw rod to rotate, so that the [-shaped frame and the four embedding seats are driven to move; therefore, the second mounting frame can be driven to gradually get close to the first mounting frame, the four slope blocks can be driven to be inserted into the clamping holes, finally, the slope blocks can be clamped with the limiting blocks under extrusion of the extrusion springs, and the second mounting frame and the first mounting frame can be locked together through the four slope blocks. The two fireproof air pipes can be quickly butted, mounted and positioned, and the butting assembly efficiency of the fireproof air pipes is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium silicate fireproof air ducts, in particular to an assembled calcium silicate board composite fireproof air duct. Background Art

[0002] The assembled calcium silicate board composite fireproof air duct is a fireproof air duct that uses calcium silicate board as the main material. Calcium silicate board is a non-homogeneous composite material with a fire retardant grade of up to A1. The fire resistance limit is usually between 1-2 hours, depending on factors such as the thickness of the air duct, material quality, and construction quality. This means that when a fire occurs, this air duct can provide a certain amount of time for the building to evacuate personnel and extinguish the fire, thereby reducing the loss of the fire. The calcium silicate board composite fireproof air duct uses a fire-resistant composite material as the main structural bonding material, has good moisture-proof and waterproof properties, and does not mold.

[0003] Prefabricated fireproof ducts are fireproof ducts that are prefabricated in a factory and assembled in a modular manner on site. In actual use, existing prefabricated fireproof ducts are still connected and assembled using traditional bolts. During the connection process, the bolt holes of the flanges on the two fireproof ducts need to be aligned and then connected with the bolts, which makes the connection operation cumbersome, time-consuming and labor-intensive, and it is inconvenient to disassemble the fireproof duct afterwards. Utility Model Content

[0004] The utility model aims to provide an assembled calcium silicate board composite fireproof air duct to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A prefabricated calcium silicate board composite fireproof air duct, comprising an air duct base, a calcium silicate board fixedly sleeved inside the air duct base, one end of the air duct base fixedly connected to a mounting frame 1, the other end of the air duct base fixedly connected to a mounting frame 2, the mounting frame 1 symmetrically fixedly connected to four socket plates about its vertical center plane, the mounting frame 2 symmetrically provided with four docking holes plugged with the socket plates about its vertical center plane, a screw rod rotatably connected to the side wall of the mounting frame 2, the end of the screw rod fixedly connected to a hexagonal hole seat, a profile frame screwed and sleeved on the screw, both ends of the profile frame fixedly connected to a telescopic rod, the end of the telescopic rod fixedly connected to a driving rod, both ends of the driving rod fixedly connected to an embedded seat embedded and clamped with the socket plate line.

[0007] Furthermore, a thermal insulation layer is fixedly arranged between the air duct substrate and the calcium silicate board, and the material of the thermal insulation layer is rock wool.

[0008] Furthermore, the installation frame 1 is provided with four snap-in holes symmetrically about its vertical center plane, and the four snap-in holes are all fixedly connected to limit blocks. The installation frame 2 is internally symmetrically fixedly connected with two limit columns, and the limit columns are slidably sleeved with an inclined block that is snap-fitted with the limit blocks, and the limit columns are sleeved with an extrusion spring that is fixedly connected with the inclined block.

[0009] Furthermore, two positioning rings are symmetrically fixedly connected in the installation frame 2, and reels are rotatably sleeved in the two positioning rings. A connecting shaft is fixedly connected between the two reels, and a rotating handle is fixedly connected to the end of the reel. One end of two connecting ropes is fixedly connected to the outer wall of the reel, and the other end of the connecting rope is fixedly connected to the inclined block.

[0010] Furthermore, an air duct hanger plate is sleeved on the outside of the air duct base, a buffer cotton layer is fixedly provided on the inner wall of the air duct hanger plate, a connecting frame is fixedly connected to the top of the air duct hanger plate, a fixing piece is fixedly provided on the top of the connecting frame, beveled tooth plates are provided at both ends of the bottom of the air duct hanger plate, a sliding plate is fixedly connected to the top of the two beveled tooth plates, two cylinders fixedly connected to the air duct hanger plate are slidably sleeved in the sliding plate, and a return spring fixedly connected to the sliding plate is sleeved on the cylinder.

[0011] Furthermore, a supporting frame plate which is socketed with the air duct base is provided at the bottom of the air duct hanging plate, a plurality of oblique tooth grooves are evenly spaced on the relative inner side walls of the supporting frame plate, the oblique tooth plates are meshed with the oblique tooth grooves, and a buffer plate is fixedly connected to the inner bottom wall of the supporting frame plate.

[0012] Furthermore, a limiting rod is fixedly connected to the side wall of the support frame plate, and two extrusion rods are symmetrically slidably sleeved on the limiting rod, and the extrusion rod is in conflict with the sliding plate. The bottom end of the extrusion rod is fixedly connected to one end of a connecting rope 2, and the other end of the connecting rope 2 is fixedly connected to a winding wheel, and the winding wheel is rotatably connected to the support frame plate. A tension spring is fixedly connected to the side wall of the extrusion rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the fireproof air duct is butt-jointed and assembled, the installation frame 1 and the installation frame 2 at the end of the air duct base are butted against each other, so that the four socket plates on the installation frame 1 can be inserted into the butt-jointed holes on the installation frame 2, and the socket plates will push against the bottom end inclined surface of the embedded seat, so that the telescopic rod will extend, and then the driving rod will drive the embedded seat to be inserted into the socket plate and snap-fit ​​with it under the action of the compression spring, and then the screw rod will be driven to rotate by rotating the hexagonal hole seat, thereby driving the profile frame and the four embedded seats to move, so that the installation frame 2 can be driven to gradually approach the installation frame 1, and the four inclined blocks can be driven to be inserted into the snap-fitting holes, and finally Afterwards, under the extrusion of the extrusion spring, the inclined surface block can remain engaged with the limit block, so that the installation frame two and the installation frame one can be locked together through the four inclined surface blocks, so that the two fire-proof air ducts can quickly complete the docking installation and positioning, thereby improving the docking and assembly efficiency of the fire-proof air ducts. By rotating the handle, the two reels can be driven to rotate in the positioning ring, and then the reels can wind up the two connecting ropes one, and one end of the connecting rope one can drive the inclined surface block to slide on the limit column, and then the inclined surface block will be separated from the limit block, so that the inclined surface block can be removed from the engaging hole, so that the docking point of the fire-proof air duct can be separated and disassembled conveniently.

[0015] By arranging an air duct hanging plate on the outside of each fireproof air duct, when suspending the air duct to the ceiling, it is necessary to socket the supporting frame plate and the bottom of the air duct, and plug the supporting frame plate and the two bevel tooth plates together. The bevel tooth plates will keep meshing and clamping with the bevel tooth grooves on the inner walls of the supporting frame plates under the action of the return spring. Therefore, the air duct hanging plate and the supporting frame plate can be combined into a complete square hanger to hang the air duct. After that, the fixing parts can be fixed to the building ceiling to fix and install the fireproof air duct. When dismantling the air duct, the two connecting ropes can be driven to wind up by rotating the winding wheel. The connecting ropes will drive the extrusion rod to contact the end of the sliding plate, thereby driving the bevel tooth plate and the bevel tooth groove to separate, so it is convenient to remove the supporting frame plate, so that the fireproof air duct can be quickly dismantled for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the stroke tube in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the installation frame in the utility model in the docking state;

[0019] Figure 4 It is a schematic diagram of the separation structure of the installation frame 1 and the installation frame 2 in the utility model;

[0020] Figure 5 It is a schematic diagram of the connection structure of the second installation frame in the utility model;

[0021] Figure 6This is a schematic diagram of the structure of the inclined surface block in the utility model;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the wind pipe hanging plate and the supporting frame plate in the utility model;

[0023] Figure 8 It is a schematic diagram of the connecting structure of the helical tooth plates in the utility model.

[0024] In the figure: 101, duct base; 102, calcium silicate board; 103, insulation layer; 201, installation frame 1; 202, clamping hole; 203, limit block; 204, sleeve plate; 301, installation frame 2; 302, docking hole; 303, screw; 304, hexagonal hole seat; 305, shaped frame; 306, telescopic rod; 307, driving rod; 308, embedded seat; 309, positioning ring; 310, reel; 311, rotating handle; 312, connecting rope One; 313, inclined block; 314, limiting column; 315, extrusion spring; 316, connecting shaft; 401, duct hanger plate; 402, connecting frame; 403, fixing piece; 404, cylinder; 405, sliding plate; 406, reset spring; 407, oblique tooth plate; 408, supporting frame plate; 409, oblique tooth groove; 410, buffer plate; 411, extrusion rod; 412, limiting rod; 413, tension spring; 414, connecting rope two; 415, winding wheel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 8, in the embodiment of the present utility model, an assembled calcium silicate board composite fireproof air duct includes an air duct base body 101. A calcium silicate board 102 is fixedly sleeved inside the air duct base body 101. One end of the air duct base body 101 is fixedly connected with a first installation frame 201, and the other end of the air duct base body 101 is fixedly connected with a second installation frame 301. Four socket plates 204 are symmetrically and fixedly connected to the first installation frame 201 with respect to its vertical center plane. Four docking holes 302 inserted with the socket plates 204 are symmetrically arranged on the second installation frame 301 with respect to its vertical center plane. A screw rod 303 is rotatably connected to the side wall of the second installation frame 301. A hexagonal hole seat 304 is fixedly connected to the end of the screw rod 303. A U-shaped frame 305 is screwed and sleeved on the screw rod 303. Expansion rods 306 are fixedly connected to both ends of the U-shaped frame 305. A driving rod 307 is fixedly connected to the end of the expansion rod 306. Embedding seats 308 linearly embedded and clamped with the socket plates 204 are fixedly connected to both ends of the driving rod 307; A heat preservation layer 103 is fixedly arranged between the air duct base body 101 and the calcium silicate board 102. The material of the heat preservation layer 103 is rock wool; Four clamping holes 202 are symmetrically arranged on the first installation frame 201 with respect to its vertical center plane. Limit blocks 203 are fixedly connected in the four clamping holes 202. Two limit columns 314 are symmetrically and fixedly connected inside the second installation frame 301. Inclined blocks 313 clamped with the limit blocks 203 are slidably sleeved on the limit columns 314. A compression spring 315 fixedly connected with the inclined block 313 is sleeved on the limit column 314.

[0027] Specifically, when docking and assembling the fireproof air duct, the first installation frame 201 and the second installation frame 301 at the end of the air duct base body 101 are docked, so that the four socket plates 204 on the first installation frame 201 can be inserted into the docking holes 302 on the second installation frame 301. The socket plate 204 will push against the bottom inclined surface of the embedding seat 308, causing the expansion rod 306 to elongate. Then, the driving rod 307 will drive the embedding seat 308 to insert into the socket plate 204 and be clamped with it under the action of the compression spring. Then, by rotating the hexagonal hole seat 304 to drive the screw rod 303 to rotate, the U-shaped frame 305 and the four embedding seats 308 can be driven to move. Therefore, the second installation frame 301 can be driven to gradually approach the first installation frame 201, and the four inclined blocks 313 can be driven to insert into the clamping holes 202. Finally, under the extrusion of the compression spring 315, the inclined block 313 can be kept clamped with the limit block 203, so that the second installation frame 301 and the first installation frame 201 can be locked together by the four inclined blocks 313, enabling the two fireproof air ducts to quickly complete the docking installation and positioning, and improving the docking and assembly efficiency of the fireproof air duct. Embodiment 1

[0028] Such as Figure 6As shown, in this embodiment, two positioning rings 309 are symmetrically fixedly connected in the installation frame 301, and a reel 310 is rotatably sleeved in the two positioning rings 309. A connecting shaft 316 is fixedly connected between the two reels 310, and a rotating handle 311 is fixedly connected to the end of the reel 310. One end of two connecting ropes 312 are fixedly connected to the outer wall of the reel 310, and the other end of the connecting rope 312 is fixedly connected to the inclined block 313.

[0029] In this embodiment, by rotating the handle 311, the two reels 310 can be driven to rotate in the positioning ring 309, and then the reels 310 wind up the two connecting ropes 312, and one end of the connecting rope 312 can drive the inclined block 313 to slide on the limiting column 314, and then the inclined block 313 will be separated from the limiting block 203, so that the inclined block 313 can be easily removed from the clamping hole 202, so that the joint of the fireproof air duct can be easily separated and disassembled. Embodiment 2

[0030] like Figure 7-8 As shown, in this embodiment, the outside of the duct base 101 is sleeved with a duct hanging plate 401, the inner wall of the duct hanging plate 401 is fixedly provided with a buffer cotton layer, the top of the duct hanging plate 401 is fixedly connected with a connecting frame 402, the top of the connecting frame 402 is fixedly provided with a fixing member 403, both ends of the bottom of the duct hanging plate 401 are provided with oblique tooth plates 407, the tops of the two oblique tooth plates 407 are fixedly connected with sliding plates 405, the sliding plates 405 are slidably sleeved with two cylinders 404 fixedly connected to the duct hanging plate 401, and the cylinders 404 are sleeved with a return spring 406 fixedly connected to the sliding plate 405; the bottom of the duct hanging plate 401 is provided with a A support frame plate 408, a plurality of oblique tooth grooves 409 are evenly spaced on the relative inner side walls of the support frame plate 408, the oblique tooth plate 407 is meshed with the oblique tooth grooves 409, and a buffer plate 410 is fixedly connected to the inner bottom wall of the support frame plate 408; a limit rod 412 is fixedly connected to the side wall of the support frame plate 408, and two extrusion rods 411 are symmetrically slidably sleeved on the limit rod 412, the extrusion rod 411 is in conflict with the sliding plate 405, and the bottom end of the extrusion rod 411 is fixedly connected to one end of a connecting rope 414, and the other end of the connecting rope 414 is fixedly connected to a winding wheel 415, and the winding wheel 415 is rotatably connected to the support frame plate 408, and a tension spring 413 is fixedly connected to the side wall of the extrusion rod 411.

[0031] In the specific implementation, by setting a duct hanging plate 401 on the outside of each fireproof duct, when the duct is suspended, it is necessary to sleeve the support frame plate 408 and the bottom of the duct, and plug the support frame plate 408 and the two beveled tooth plates 407. The beveled tooth plates 407 will be engaged with the beveled tooth grooves 409 on the inner wall of the support frame plate 408 under the action of the return spring 406, so that the duct hanging plate 401 and the support frame plate 408 can be combined into a complete square hanger for the duct. After being hoisted, the fixing part 403 can be fixed to the building ceiling to fix the fireproof air duct. When the air duct is disassembled, the two connecting ropes 414 can be driven to wind by rotating the winding wheel 415. The connecting rope 414 will drive the extrusion rod 411 to contact the end of the sliding plate 405, thereby driving the bevel tooth plate 407 and the bevel tooth groove 409 to separate, so that it is convenient to remove the supporting frame plate 408, so that the fireproof air duct can be quickly disassembled for cleaning.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An assembled calcium silicate board composite fireproof air duct, characterized in that: It includes an air duct base body, inside which a calcium silicate board is fixedly sleeved. One end of the air duct base body is fixedly connected with a first mounting frame, and the other end of the air duct base body is fixedly connected with a second mounting frame. Four socket plates are symmetrically and fixedly connected to the first mounting frame with respect to its vertical center plane. Four docking holes for inserting the socket plates are symmetrically formed in the second mounting frame with respect to its vertical center plane. A screw rod is rotatably connected to the side wall of the second mounting frame. A hexagonal hole seat is fixedly connected to the end of the screw rod. A U-shaped frame is screwed and sleeved on the screw rod. Two telescopic rods are fixedly connected to both ends of the U-shaped frame. A compression spring is fixedly connected in the telescopic rod. A driving rod is fixedly connected to the end of the telescopic rod. Embedding seats that are linearly embedded and clamped with the socket plates are fixedly connected to both ends of the driving rod.

2. The assembled calcium silicate board composite fireproof air duct according to claim 1, characterized in that: A heat insulation layer is fixedly arranged between the air duct base body and the calcium silicate board, and the material of the heat insulation layer is rock wool.

3. The assembled calcium silicate board composite fireproof air duct according to claim 1, characterized in that: Four clamping holes are symmetrically formed in the first mounting frame with respect to its vertical center plane. A limiting block is fixedly connected in each of the four clamping holes. Two limiting columns are symmetrically and fixedly connected inside the second mounting frame. An inclined plane block that is clamped with the limiting block is slidably sleeved on the limiting column. A compression spring that is fixedly connected to the inclined plane block is sleeved on the limiting column.

4. The assembled calcium silicate board composite fireproof air duct according to claim 3, characterized in that: Two positioning rings are symmetrically and fixedly connected in the second mounting frame. A scroll is rotatably sleeved in each of the two positioning rings. A connecting shaft is fixedly connected between the two scrolls. A rotating handle is fixedly connected to the end of the scroll. One ends of two first connecting ropes are fixedly connected to the outer wall of the scroll, and the other ends of the first connecting ropes are fixedly connected to the inclined plane block.

5. The assembled calcium silicate board composite fireproof air duct according to claim 4, characterized in that: An air duct suspension plate is sleeved outside the air duct base body. A buffer cotton layer is fixedly arranged on the inner wall of the air duct suspension plate. A connecting frame is fixedly connected to the top of the air duct suspension plate. A fixing member is fixedly arranged at the top end of the connecting frame. Oblique tooth plates are arranged at both ends of the bottom of the air duct suspension plate. Sliding plates are fixedly connected to the top ends of the two oblique tooth plates. Two cylinders fixedly connected to the air duct suspension plate are slidably sleeved in the sliding plates. A return spring fixedly connected to the sliding plate is sleeved on the cylinder.

6. The assembled calcium silicate board composite fireproof air duct according to claim 5, characterized in that: A support frame plate sleeved with the air duct base body is arranged at the bottom of the air duct suspension plate. A plurality of oblique tooth grooves are equidistantly formed on the opposite inner side walls of the support frame plate. The oblique tooth plates are meshed with the oblique tooth grooves. A buffer plate is fixedly connected to the inner bottom wall of the support frame plate.

7. The assembled calcium silicate board composite fireproof air duct according to claim 6, characterized in that: A limiting rod is fixedly connected to the side wall of the support frame plate. Two extrusion rods are symmetrically and slidably sleeved on the limiting rod. The extrusion rods are in contact with the sliding plates. One ends of two second connecting ropes are fixedly connected to the bottom ends of the extrusion rods, and the other ends of the second connecting ropes are fixedly connected to a winding wheel. The winding wheel is rotatably connected to the support frame plate. A tension spring is fixedly connected to the side wall of the extrusion rod.

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