Novel smoke prevention and exhaust device for building indoor fire fighting

Abstract

The utility model relates to the technical field of smoke prevention and exhaust devices for building indoor fire protection, in particular to a novel smoke prevention and exhaust device for building indoor fire protection, which comprises a straight tube and a fan, the front of the inner wall of the straight tube is fixedly connected with the outer wall of the fan, and the inner wall of the straight tube is connected with a filter structure. The left side and the right side of the top of the filtering structure are connected with transverse plates correspondingly, and the inner walls of the transverse plates are in threaded connection with bolts. A handle drives a first screw rod to rotate upwards in a filtering structure, so that the bottom of the outer wall of the first screw rod is separated from the top of a support, then a top plate is pulled upwards to drive a screen plate to move upwards, the screen plate is separated from the interior of the support, then the screen plate is cleaned, and the screen plate is inserted into the interior of the support after cleaning is finished; and then the handle drives the first screw rod to rotate downwards through the second top plate, so that the outer wall of the first screw rod is in threaded connection with the top of the support, net plate cleaning is achieved, the service life of the smoke prevention and exhaust device for building indoor fire fighting is guaranteed, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of smoke control and exhaust devices for indoor fire protection in buildings, specifically a novel smoke control and exhaust device for indoor fire protection in buildings. Background Technology

[0002] Smoke control and exhaust systems for indoor fire protection in buildings limit smoke and harmful gases to a certain range by controlling airflow inside the building, preventing them from spreading to other areas and thus reducing casualties and property damage.

[0003] For example, a building indoor fire-fighting smoke control device with authorization announcement number "CN216244729U" uses a water pump to draw water from an external water pipe through an inlet pipe, which then flows through an outlet pipe and a first connecting pipe into a second connecting pipe. The water is then sprayed out through nozzles to block the spread of fire, achieving the goal of reducing fire spread and preventing casualties from excessive fires. It also prevents excessive fires from affecting subsequent rescue work and is more convenient to use. However, the internal filter plates of this building indoor fire-fighting smoke control device cannot be replaced, and the accumulated dust cannot be cleaned after each use, affecting future use. Only complete replacement is possible, shortening the lifespan of the device and increasing operating costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of shortening the service life of indoor fire-fighting smoke exhaust devices and increasing the cost of use, and to propose a new type of indoor fire-fighting smoke exhaust device.

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

[0006] A novel indoor fire-fighting smoke extraction device for buildings is designed, comprising a straight cylinder and a fan. The front of the inner wall of the straight cylinder is fixedly connected to the outer wall of the fan. A filter structure is connected to the inner wall of the straight cylinder. Horizontal plates are connected to the top left and right sides of the filter structure, and bolts are threaded to the inner walls of the horizontal plates. A support structure is connected to the top rear of the straight cylinder.

[0007] Preferably, the filter structure includes a support and a mesh plate. The outer wall of the support is inserted into the inner wall of the straight cylinder, and the inner wall of the support is inserted into the outer wall of the mesh plate. A top plate is fixedly connected to the top of the mesh plate, and a first screw is threadedly connected to the inner wall of the top plate. A handle is fixedly connected to the top of the first screw.

[0008] Preferably, the bottom of the outer wall of the first screw is threaded to the top of the bracket.

[0009] Preferably, the top left and right sides of the bracket are fixedly connected to the bottom of the two horizontal plates respectively.

[0010] Preferably, the bottom of the outer wall of the bolt is threaded to the top of the straight cylinder.

[0011] Preferably, the support structure includes a second screw and a cylinder, the bottom of the second screw is fixedly connected to the rear top of the cylinder, the outer wall of the second screw is threadedly connected to the inner wall of the cylinder, and top plates are fixedly connected to the top of the left and right sides of the cylinder respectively.

[0012] This utility model proposes a novel smoke extraction device for indoor fire protection in buildings. The beneficial effects are as follows: By rotating the handle upwards along the first screw in the filter structure, the bottom of the outer wall of the first screw detaches from the top of the bracket. Then, the top plate is pulled upwards, moving the mesh plate upwards and detaching it from the inside of the bracket. The mesh plate is then cleaned. After cleaning, the mesh plate is inserted back into the bracket. Finally, the handle rotates downwards along the top plate, causing the outer wall of the first screw to threadedly connect with the top of the bracket, thus cleaning the mesh plate. This ensures the service life of the smoke extraction device for indoor fire protection in buildings and reduces operating costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the central support, the mesh panel, and the top panel;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of A in the middle;

[0016] Figure 4 for Figure 2 A schematic diagram of the structure of B in the middle;

[0017] Figure 5 for Figure 1 A schematic diagram showing the connection relationship between the second screw, the cylinder, and the top plate.

[0018] In the diagram: 1. Straight cylinder, 2. Filter structure, 201. Support, 202. Mesh plate, 203. Top plate one, 204. First screw, 205. Handle, 3. Support structure, 301. Second screw, 302. Cylinder, 303. Top plate two, 4. Fan, 5. Horizontal plate, 6. Bolt, 7. Sleeve plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: Example

[0020] Please see Figure 1-5In this embodiment, a novel indoor fire-fighting smoke exhaust device for buildings includes a straight cylinder 1 and a fan 4. The front of the inner wall of the straight cylinder 1 is fixedly connected to the outer wall of the fan 4. The operation and use of the fan 4 is existing technology, and the model is selected according to the usage requirements, which will not be elaborated in detail. A filter structure 2 is connected to the inner wall of the straight cylinder 1. Horizontal plates 5 are connected to the top left and right sides of the filter structure 2, respectively. Bolts 6 are threadedly connected to the inner wall of the horizontal plates 5. A support structure 3 is connected to the top rear of the straight cylinder 1.

[0021] The filter structure 2 includes a support 201 and a mesh plate 202. The outer wall of the support 201 is inserted into the inner wall of the straight cylinder 1, and the inner wall of the support 201 is inserted into the outer wall of the mesh plate 202. The rear mesh plate 202 is made of stainless steel and mainly blocks particulate matter in the flue gas. The front mesh plate 202 is made of activated carbon mesh, which can eliminate odors. The activated carbon mesh can be reused after being dried in the sun. A top plate 203 is fixed to the top of the mesh plate 202. A first screw 204 is threadedly connected to the inner wall of the top plate 203. A handle 205 is fixed to the top of the first screw 204. The handle 205 facilitates the rotation of the first screw 204. The bottom of the outer wall of the first screw 204 is threadedly connected to the top of the support 201. The top left and right sides of the support 201 are fixed to the bottom of two horizontal plates 5 respectively.

[0022] By rotating the handle 205 upwards along the first screw 204 in the filter structure 2, the bottom of the outer wall of the first screw 204 is disengaged from the top of the bracket 201. Then, the top plate 203 is pulled upwards, moving the mesh plate 202 upwards, causing the mesh plate 202 to detach from the interior of the bracket 201. Subsequently, the mesh plate 202 is cleaned. After cleaning, the mesh plate 202 is inserted back into the interior of the bracket 201. Then, the handle 205 rotates the first screw 204 downwards along the top plate 203, causing the outer wall of the first screw 204 to be threadedly connected to the top of the bracket 201, thus cleaning the mesh plate. This ensures the service life of the indoor fire-fighting smoke extraction device in the building and reduces the operating cost.

[0023] The bottom of the outer wall of bolt 6 is threaded to the top of the straight cylinder 1. Bolt 6 fixes the straight cylinder 1 and the horizontal plate 5. The support structure 3 includes a second screw 301 and a cylinder 302. The bottom of the second screw 301 is fixed to the rear of the top of the straight cylinder 1. The outer wall of the second screw 301 is threaded to the inner wall of the cylinder 302. The cylinder 302 rotates up and down under the force of the second screw 301. Top plates 303 are fixed to the top of the left and right sides of the cylinder 302, respectively.

[0024] Working principle:

[0025] Installation of indoor fire protection and smoke extraction systems in buildings:

[0026] The outer wall of the straight cylinder 1 is inserted from the inside to the outside, and the outer wall of the straight cylinder 1 is inserted into the opening of the wall. Then the cylinder 302 rotates upward on the outer wall of the second screw 301. The rotating cylinder 302 moves the top plate 303 upward, so that the top of the top plate 303 fits against the roof. Then the screw passes through the top plate 303 from bottom to top and is fixed to the roof.

[0027] Use of smoke extraction and fire prevention systems for indoor building fire protection:

[0028] When smoke is generated indoors, the fan 4 operates to draw the smoke into the back of the straight cylinder 1 and discharge it in front of the straight cylinder 1. The smoke passes through the mesh plate 202, which blocks particulate impurities and prevents them from affecting the fan blades of the fan 4.

[0029] Cleaning of indoor fire-fighting smoke extraction systems in buildings:

[0030] Rotate the handle 205 upwards along with the first screw 204, causing the bottom of the outer wall of the first screw 204 to detach from the top of the bracket 201. Then, pull the top plate 203 upwards, moving the mesh plate 202 upwards, causing the mesh plate 202 to detach from the interior of the bracket 201. Clean the mesh plate 202. After cleaning, insert the mesh plate 202 back into the interior of the bracket 201. Then, rotate the handle 205 downwards along with the first screw 204 through the top plate 203, causing the outer wall of the first screw 204 to be threadedly connected to the top of the bracket 201.

[0031] Deep cleaning of indoor fire-fighting smoke extraction systems in buildings:

[0032] Rotate the bolt 6 upward through the horizontal plate 5 to disengage the bottom of the outer wall of the bolt 6 from the top of the straight cylinder 1. Then pull the bracket 201 upward to disengage it from the inside of the straight cylinder 1. Clean the straight cylinder 1, bracket 201 and mesh plate 202. Then insert the bracket 201 back into the straight cylinder 1. Then rotate the bolt 6 downward through the horizontal plate 5 to connect it with the top of the straight cylinder 1. Example

[0033] Please see Figure 1-5 In this embodiment, a novel indoor fire-fighting smoke exhaust device for buildings also includes a sleeve plate 7, the inner wall of which is fixedly connected to the front of the outer wall of the straight cylinder 1.

[0034] Working principle:

[0035] After the straight cylinder 1 is inserted into the wall opening, the front of the sleeve 7 is made to fit against the wall, and then the screw is threaded through the sleeve 7 from back to front and fixed to the wall.

[0036] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A novel indoor fire-fighting smoke extraction device for buildings, comprising a straight cylinder (1) and a fan (4), wherein the front of the inner wall of the straight cylinder (1) is fixedly connected to the outer wall of the fan (4), characterized in that: The inner wall of the straight cylinder (1) is connected to a filter structure (2). Horizontal plates (5) are connected to the top left and right sides of the filter structure (2). Bolts (6) are threaded onto the inner wall of the horizontal plates (5). A support structure (3) is connected to the rear top of the straight cylinder (1). The filter structure (2) includes a bracket (201) and a mesh plate (202). The outer wall of the bracket (201) is inserted into the inner wall of the straight cylinder (1), and the inner wall of the bracket (201) is inserted into the outer wall of the mesh plate (202). Next, a top plate (203) is fixedly connected to the top of the mesh plate (202), and a first screw (204) is threadedly connected to the inner wall of the top plate (203). A handle (205) is fixedly connected to the top of the first screw (204), and the bottom of the outer wall of the first screw (204) is threadedly connected to the top of the bracket (201). The top left and right sides of the bracket (201) are respectively fixedly connected to the bottom of two horizontal plates (5), and the bottom of the outer wall of the bolt (6) is threadedly connected to the top of the straight cylinder (1).

2. The novel indoor fire-fighting smoke extraction device for buildings according to claim 1, characterized in that: The support structure (3) includes a second screw (301) and a cylinder (302). The bottom of the second screw (301) is fixedly connected to the rear of the top of the straight cylinder (1). The outer wall of the second screw (301) is threadedly connected to the inner wall of the cylinder (302). Top plates (303) are fixedly connected to the top of the left and right sides of the cylinder (302).

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