Smoke-proof and fire-proof calcium silicate board air duct

Abstract

The utility model discloses a calcium silicate board smoke prevention and exhaust fireproof air pipe which comprises a straight pipe, a bent pipe is arranged at one end of the straight pipe, a flange is fixedly connected between the straight pipe and the bent pipe, the straight pipe and a bent pipe body are both made of calcium silicate materials, two empty grooves are formed in the straight pipe, and the two empty grooves are communicated with the straight pipe. Arc-shaped grooves are formed in the inner top and the inner bottom of the straight pipe in a penetrating manner; the deflection assembly is arranged in the straight pipe and can guide the wind direction to deflect; the auxiliary assembly is arranged in the straight pipe and matched with the partial guiding assembly, and the exhaust air rate can be automatically adjusted in an adaptive mode; the partial guiding assembly comprises a fixing rod, the fixing rod is fixedly connected into the straight pipe, and two rotating sleeves are rotationally connected to the outside of the fixing rod. According to the utility model, the partial guiding assembly and the auxiliary assembly are arranged, so that expansion of high-temperature and high-pressure gas can be dealt with, and the exhaust air rate can be automatically and adaptively adjusted according to the air volume.

Description

Technical Field

[0001] This utility model relates to the field of fireproof air duct technology, specifically a calcium silicate board smoke and fireproof air duct. Background Technology

[0002] Calcium silicate board smoke and fireproof air ducts are fireproof air ducts made primarily of calcium silicate board. They possess excellent fire resistance, thermal insulation, sound insulation, noise reduction, moisture resistance, and corrosion resistance. Primarily used in building smoke control systems, such as high-rise buildings, commercial complexes, and hospitals, they maintain structural stability during fires, effectively preventing the spread of fire, ensuring the normal operation of the smoke exhaust system, and guaranteeing the safe evacuation of personnel.

[0003] Current calcium silicate board smoke and fire ducts have limitations when facing extreme conditions such as high-temperature, high-pressure gas expansion. These ducts often cannot flexibly adjust the exhaust air volume according to the actual fire situation or smoke diffusion, which significantly limits their smoke extraction efficiency and fire resistance. To effectively address this issue, a calcium silicate board smoke and fire duct is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a calcium silicate board smoke and fireproof air duct to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A calcium silicate board smoke and fireproof ventilation duct includes:

[0007] A straight pipe with a bend at one end, a flange fixedly connected between the straight pipe and the bend, both the straight pipe and the bend being made of calcium silicate, two slots being provided inside the straight pipe, and arc-shaped slots being provided through the top and bottom of the straight pipe.

[0008] A deflector assembly, which is disposed inside a straight pipe, is capable of guiding the wind direction to deflect;

[0009] An auxiliary component is installed inside the straight pipe and works in conjunction with the deflector component to automatically adjust the exhaust volume.

[0010] Preferably, the partial guide component includes:

[0011] A fixing rod is fixedly connected inside a straight pipe, and two rotating sleeves are rotatably connected to the outside of the fixing rod;

[0012] The first plate is fixedly connected to the outside of the fixed rod and is parallel to the inner channel of the straight tube.

[0013] A deflector plate is rotationally connected between the two rotating sleeves, and rotating rods are fixedly connected in the deflector plate, and the two ends of the two rotating rods pass through the arc-shaped slots and extend into the hollow slots;

[0014] Connecting rods are rotationally connected between the top and bottom ends of the rotating rods.

[0015] A second plate body is fixedly connected in the straight pipe and is perpendicular to the inner channel of the straight pipe.

[0016] Preferably, the deflector assembly is provided in two groups, and the two groups are oppositely arranged.

[0017] Preferably, two rotating joints are arranged between the two groups of connecting rods, and the two groups of connecting rods are rotationally connected through the rotating joints.

[0018] Preferably, the first wind area is formed between the two first plate bodies and the two second plate bodies, and the two second wind areas are formed between the two first plate bodies, the deflector plate and the inner wall of the straight pipe.

[0019] Preferably, the auxiliary assembly comprises:

[0020] Two toothed plates are slidingly connected in the two hollow slots, and one end of each toothed plate is fixedly connected with a rotating joint.

[0021] Two gears are arranged in the two hollow slots, and the two gears are meshingly connected with the two toothed plates, rotating shafts are fixedly connected in the two gears, the two gears are rotationally connected with the inner walls of the hollow slots through the rotating shafts, and a connecting shaft is fixedly connected between the two rotating shafts.

[0022] A plurality of rotating paddles are fixedly connected outside the connecting shaft.

[0023] Two torsional springs are sleeved outside the two rotating shafts, one end of each torsional spring is fixedly connected with the gear, and the other end of each torsional spring is fixedly connected with the inner wall of the hollow slot.

[0024] A wind guide block is fixedly connected to the inner side of the first plate body.

[0025] Preferably, the positions of the connecting shaft, the rotating paddles, the wind guide block, the fixed rod, the rotating sleeve, the first plate body, the two second plate bodies and the deflector plate are arranged in the straight pipe, and the positions of the toothed plate, the gear, the rotating shaft, the torsional spring, the connecting rod and the rotating joint are arranged in the hollow slot.

[0026] Compared with the prior art, the utility model has the advantages that:

[0027] Normally, slow wind is discharged through the first wind area separating device formed by the two first plate bodies and the second plate body, when a fire occurs, high-temperature and high-pressure gas is generated, at this time, the wind speed and the wind volume are increased, the two deflector plates are pushed to open the two second wind areas, and the high-pressure gas is effectively released by increasing the two second wind areas;

[0028] In this process, the high-pressure gas drives the plurality of rotating paddles to rotate in one direction through the guide of the guide block, synchronously drives the two gears to rotate, synchronously drives the two toothed plates to move through the two gears, and drives the two groups of connecting rods to move through the two toothed plates, and the two deflector plates are driven to rotate through the two groups of connecting rods, the high-pressure gas in the two second wind areas is pushed, and the deflector plates are driven to rotate and open through the auxiliary pushing in the first wind area, the opening angle is larger as the wind volume is larger, and the opening angle is smaller as the wind volume is smaller, in a word, the expansion of the high-temperature and high-pressure gas can be coped with, and the exhaust volume can be automatically adjusted according to the wind volume. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 is a schematic diagram of the specific structure in the utility model;

[0031] Figure 3 is an enlarged view of A in the utility model; Figure 2

[0032] Figure 4 is a schematic diagram of the local structure in the utility model;

[0033] Figure 5 is an enlarged view of B in the utility model; Figure 4

[0034] Figure 6 is a schematic diagram of the first wind area and the second wind area structure in the utility model.

[0035] In the drawing: 100, straight pipe; 110, elbow pipe; 120, flange; 130, hollow groove; 140, arc groove; 200, deflector assembly; 300, auxiliary assembly; 210, fixed rod; 211, rotating sleeve; 220, first plate body; 230, deflector plate; 231, rotating rod; 240, connecting rod; 250, second plate body; 260, rotating joint; 310, toothed plate; 320, gear; 321, rotating shaft; 322, connecting shaft; 330, rotating paddle; 340, torsional spring; 350, guide block; 400, first wind area; 500, second wind area. DETAILED DESCRIPTION

[0036] ​​The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0037] like Figures 1-6 As shown in this embodiment, a calcium silicate board smoke and fireproof duct includes: a straight pipe 100, a deflector assembly 200, and an auxiliary assembly 300. One end of the straight pipe 100 is provided with a bend 110, and a flange 120 is fixedly connected between the straight pipe 100 and the bend 110. The main bodies of the straight pipe 100 and the bend 110 are both made of calcium silicate material. Two hollow grooves 130 are opened in the straight pipe 100. Arc-shaped grooves 140 are opened through the inner top and inner bottom of the straight pipe 100. By setting the arc-shaped grooves 140, the linkage of the rotating rod 231 is facilitated when the connecting rod 240 drives the deflector plate 230 to rotate, and interference is avoided.

[0038] The deflector assembly 200 includes: a fixed rod 210, a first plate 220, a deflector plate 230, a connecting rod 240, and a second plate 250. The fixed rod 210 is fixedly connected inside the straight tube 100, and two rotating sleeves 211 are rotatably connected to the outside of the fixed rod 210. The first plate 220 is fixedly connected to the outside of the fixed rod 210 and is parallel to the inner channel of the straight tube 100. The deflector plate 230 is rotatably connected between the two rotating sleeves 211, and a rotating rod 231 is fixedly connected inside the deflector plate 230. Both ends of the two rotating rods 231 pass through the arc-shaped groove 140 and extend into the empty groove 130. Two connecting rods 240 are rotatably connected to the top and bottom ends of the rotating rods 231, respectively, and are rotatably connected to each other. The second plate 250 is fixedly connected inside the straight tube 100 and is perpendicular to the inner channel of the straight tube 100. Similarly, the second plate 250 and the first plate 220 are on the same straight line.

[0039] In this embodiment, the deflector assembly 200 is configured in two sets, which are arranged opposite to each other; two rotating joints 260 are provided between the two sets of connecting rods 240, and the two sets of connecting rods 240 are rotatably connected through the rotating joints 260. By setting the rotating joints 260, the toothed plate 310 and the connecting rods 240 can be connected together.

[0040] Specifically, under normal circumstances, slow wind is discharged through the first wind area 400 separated by the two first plate bodies 220 and the second plate body 250, when a fire occurs, high-temperature and high-pressure gas will be generated, at this time, the wind speed and the wind volume are increased, which will push the two deflector plates 230 to open the two second wind areas 500, by increasing the two second wind areas 500, the high-pressure gas can be effectively released. Embodiments

[0041] On the basis of the first embodiment, in order to assist in pushing the deflector plate 230 to rotate, an auxiliary assembly 300 is arranged.

[0042] As shown in Figures 2-6 In this embodiment, the auxiliary assembly 300 includes a toothed plate 310, a gear 320, a rotating paddle 330, a torsional spring 340, and a wind guide block 350. Two toothed plates 310 are respectively slidably connected in the two hollow grooves 130, and one end of each toothed plate 310 is fixedly connected with the two rotating joints 260. Two gears 320 are respectively arranged in the two hollow grooves 130, and each gear 320 is meshingly connected with the two toothed plates 310. A rotating shaft 321 is fixedly connected in each gear 320, and each gear 320 is rotatably connected with the inner wall of the hollow groove 130 through the rotating shaft 321. A connecting shaft 322 is fixedly connected between the two rotating shafts 321. A plurality of rotating paddles 330 are fixedly connected to the connecting shaft 322. Two torsional springs 340 are respectively sleeved on the two rotating shafts 321, one end of each torsional spring 340 is fixedly connected with the gear 320, and the other end is fixedly connected with the inner wall of the hollow groove 130. The wind guide block 350 is fixedly connected to the inner side of the first plate body 220. By arranging the wind guide block 350, the plurality of rotating paddles 330 can be integrally rotated in one direction, and reverse rotation is avoided.

[0043] Specifically, the high-pressure gas drives the plurality of rotating paddles 330 to rotate in one direction through the guide of the wind guide block 350, thereby driving the two gears 320 to rotate. The two gears 320 synchronously drive the two toothed plates 310 to move, and the two toothed plates 310 drive the two sets of connecting rods 240 to move, thereby assisting the two deflector plates 230 to rotate. By the pushing of the high-pressure gas in the two second wind areas 500 and the auxiliary pushing in the first wind area 400, the deflector plate 230 can be rotated and opened. The larger the wind volume is, the larger the opening angle is, and the smaller the wind volume is, the smaller the opening angle is.

[0044] As shown in Figure 2 and Figure 3As shown, further, the gear 320 rotates while driving the torsion spring 340 to store energy, when the wind speed and volume decrease, the torsion spring 340 releases, can be linked to make the deflector plate 230 in time reset, at the same time, can be replaced according to the actual situation of different torsion torque torsion spring 340, it should be noted that the rotation speed and vibration amplitude of the torsion spring 340 will not cause significant impact on the device, therefore, no need to add damping structure, the torsion spring 340 is prior art, no more.

[0045] Working principle: under normal circumstances, the slow wind is discharged from the device through the first wind area 400 separated by the two first plate bodies 220 and the second plate body 250, when the fire occurs, the high-temperature and high-pressure gas is expanded, at this time, the wind speed and volume increase, which pushes the two deflector plates 230 to open the two second wind areas 500, by increasing the two second wind areas 500, the high-pressure gas can be effectively released, in this process, the high-pressure gas drives the plurality of rotating paddles 330 to rotate in one direction through the guidance of the wind guide block 350, and then drives the two gears 320 to rotate, the two gears 320 synchronously drive the two toothed plates 310 to move, the two toothed plates 310 drive the two groups of connecting rods 240 to move, and the two groups of connecting rods 240 assist the two deflector plates 230 to rotate, through the pushing of the high-pressure gas in the two second wind areas 500 and the auxiliary pushing in the first wind area 400, the deflector plate 230 can be rotated and opened, the larger the wind volume, the larger the opening angle, and the smaller the wind volume, the smaller the opening angle, in short, this can cope with the expansion of high-temperature and high-pressure gas, and the exhaust volume can be automatically adjusted according to the wind volume.

[0046] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and thus can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Accordingly, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be regarded as limiting the claims to which they belong.

[0047] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A calcium silicate board smoke exhaust fire prevention air duct, characterized in that, Include: Straight pipe (100), one end of the straight pipe (100) is provided with an elbow (110), the straight pipe (100) and elbow (110) are fixedly connected with flange (120), the straight pipe (100) and elbow (110) are made of calcium silicate material, two air slots (130) are formed in the straight pipe (100), and the inner top and inner bottom of the straight pipe (100) are provided with arc grooves (140); Deflection assembly (200), the deflection assembly (200) is arranged in the straight pipe (100), and can guide the deflection of wind direction; Auxiliary assembly (300), the auxiliary assembly (300) is arranged in the straight pipe (100), and cooperates with the deflection assembly (200), which can automatically adapt to adjust the exhaust volume.

2. The calcium silicate board smoke control fire dam prevention air duct according to claim 1, characterized in that, The deflection assembly (200) comprises: Fixed rod (210), the fixed rod (210) is fixedly connected in the straight pipe (100), and the fixed rod (210) is rotatably connected with two rotating sleeves (211); First plate body (220), the first plate body (220) is fixedly connected outside the fixed rod (210), and the inner channel of the straight pipe (100) is in parallel relationship; Deflection plate (230), the deflection plate (230) is rotatably connected between the two rotating sleeves (211), the deflection plate (230) is fixedly connected with rotating rods (231) inside, and the two ends of the two rotating rods (231) penetrate through the arc grooves (140) and extend into the air slots (130); Connecting rod (240), the two connecting rods (240) are rotatably connected at the top and bottom of the rotating rod (231), and the two connecting rods (240) are rotatably connected; Second plate body (250), the second plate body (250) is fixedly connected in the straight pipe (100), and the inner channel of the straight pipe (100) is in vertical relationship.

3. The calcium silicate board smoke control fire dam prevention air duct according to claim 2, characterized in that, The deflection assembly (200) is provided as two groups, and the two groups are oppositely arranged.

4. The calcium silicate board smoke control fire dam prevention air duct according to claim 2, characterized in that, Two rotating joints (260) are arranged between the two groups of connecting rods (240), and the two groups of connecting rods (240) are rotatably connected through the rotating joints (260).

5. The calcium silicate board smoke control fire dam prevention air duct according to claim 2, characterized in that, The first wind area (400) is formed between the two first plate bodies (220) and the two second plate bodies (250), and the two second wind areas (500) are formed between the two first plate bodies (220), the deflection plate (230) and the inner wall of the straight pipe (100).

6. The calcium silicate board smoke control fire dam prevention air duct according to claim 1, characterized in that, The auxiliary assembly (300) comprises: Toothed plate (310), two toothed plates (310) are slidably connected in the two air slots (130), and one end of the two toothed plates (310) is fixedly connected with the two rotating joints (260) respectively; Gear (320), two said gear (320) is respectively arranged in two empty slot (130), two said gear (320) is respectively engaged with two toothed plate (310) connection, two said gear (320) are fixedly connected with shaft (321) in two, two said gear (320) are rotatably connected with empty slot (130) inner wall through shaft (321), two said shaft (321) are fixedly connected with connecting shaft (322) between them; Rotary paddle (330), a plurality of said rotary paddle (330) are fixedly connected to the connecting shaft (322) outside; Torsion spring (340), two said torsion spring (340) are respectively sleeved on two shaft (321) outside, two said torsion spring (340) one end is fixedly connected with gear (320), its other end is fixedly connected with empty slot (130) inner wall; Air guide block (350), the air guide block (350) is fixedly connected to the inner side of the first plate body (220).

7. The calcium silicate board smoke control fire damming air duct according to claim 6, characterized in that The position of the connecting shaft (322), the rotary paddle (330), the air guide block (350), the fixed rod (210), the rotating sleeve (211), the first plate body (220), two second plate bodies (250) and the deflector (230) are all arranged in the straight pipe (100), and the positions of the toothed plate (310), the gear (320), the shaft (321), the torsion spring (340), the connecting rod (240) and the rotating joint (260) are all arranged in the empty slot (130).

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