CN211599661U - Folding smoke-discharging fire-proof valve - Google Patents

Abstract

The utility model discloses a foldable fire prevention valve that discharges fume, including casing, stop gear, baffle, slider, canceling release mechanical system, fuse and slewing mechanism. The utility model has the advantages that: the baffle plates are hinged with the shell through hinges, the baffle plates are connected to the shell in a sliding mode through the sliding blocks, and the adjacent baffle plates are hinged through the hinges, so that the sliding blocks are driven to slide by the rotating mechanism, the baffle plates move along with the sliding blocks, the adjacent baffle plates are driven to move by the baffle plates, and the through holes in the shell are blocked by the baffle plates to avoid the spread of fire; the sliding block is fixedly connected with a rotating mechanism, and the sliding block is driven to slide after the fuse is broken through the rotating mechanism, so that the sliding block is beneficial to automatic movement; the rotating mechanism is fixed with a resetting mechanism, and the resetting mechanism resets the rotating mechanism, so that the resetting of the baffle is facilitated, and the next use of the device is facilitated; a plurality of baffles are Z-shaped structures and are folded, so that the folding of the baffles can reduce the blockage of the through holes of the shell by the area of the baffles, and the smoke discharge is facilitated.

Description

Folding smoke-discharging fire-proof valve

Technical Field

The utility model relates to a fire prevention valve specifically is a foldable fire prevention valve that discharges fume belongs to fire control technical field.

Background

The fire damper is a valve type closed by the temperature control of memory alloy and the action of gravity and a spring mechanism. The novel product also utilizes the memory alloy to generate deformation to close the valve. It has the following functions: when the temperature of the flue gas reaches 280 ℃, people are basically evacuated, the actual meaning of the flue gas discharge is not realized, and the valve is automatically closed when the fire is brought in the flue gas, so that the fire is prevented from spreading. The smoke exhausting fire-proof valve is one kind of fire-proof valve. The smoke-discharging fire-resisting valve is a fire-resisting component, generally mounted on the pipeline of mechanical smoke-discharging system, normally is opened, when fire hazard occurs, the smoke-discharging fire-resisting valve is opened, when the smoke-discharging pipeline interior smoke temp. is reached to 280 deg.C, and closed, and can meet the requirements of smoke-leaking quantity and fire-resisting integrity in a certain time so as to implement the functions of isolating smoke and resisting fire. The main materials are as follows: carbon steel, galvanized sheet, stainless steel.

However, when the existing fire damper is used, the through holes of the shell of the fire damper are blocked by the baffles so as to avoid fire spreading, but the gaps between the baffles are large, so that smoke cannot be well blocked.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a foldable smoke exhaust fire prevention valve just in order to solve above-mentioned problem, can effectually block the through-hole of the casing of fire prevention valve to be convenient for effectually block the flue gas, avoid the intensity of a fire to stretch, and easy operation, convenient to use.

The utility model discloses a technical scheme realizes above-mentioned mesh through following, a foldable smoke exhaust fire prevention valve, including the casing, be fixed with blocking mechanism on the casing, blocking mechanism includes baffle and slider, the baffle rotates to be connected in the casing, through hinged joint between two adjacent baffles, the baffle is fixed with the slider, the slider is connected in the casing in a sliding manner; the blocking mechanism is fixedly connected to the rotating mechanism, the rotating mechanism is installed on the shell, the rotating mechanism is sleeved with the resetting mechanism, the resetting mechanism is installed on the shell, a fuse is fixed on the shell, and the fuse is fixedly connected to the rotating mechanism.

Preferably, in order to enable the baffle to slide and block the through hole of the shell, the rotating mechanism comprises a pull rope, a roller, a clockwork spring and a rotating column, one end of the pull rope is fixed to the sliding block, the other end of the pull rope is fixed to the roller, the roller is rotatably connected to the shell through the rotating column, the clockwork spring is sleeved on the rotating column, one end of the clockwork spring is fixed to the shell, and the other end of the clockwork spring is fixed to the rotating column.

Preferably, in order to facilitate guiding and sliding of the pulling rope, the rotating mechanism further comprises a guide post, the guide post is fixed to the housing, and the pulling rope is slidably connected to the guide post.

Preferably, in order to facilitate the resetting of the pull rope, the resetting mechanism includes a first gear, a chain, a handle and a second gear, the first gear is sleeved on the rotating column, the second gear is rotatably connected to the housing through the handle, the handle is rotatably connected to the housing, the first gear is meshed with the chain, and the second gear is meshed with the chain.

Preferably, in order to facilitate the resetting of the baffle, the sliding blocks are fixed to the top end and the bottom end of the baffle, and the rotating mechanism is symmetrically arranged around the center of the shell.

The utility model has the advantages that: the baffle plates are hinged with the shell through hinges, the baffle plates are connected to the shell in a sliding mode through the sliding blocks, and the adjacent baffle plates are hinged through the hinges, so that the sliding blocks are driven to slide by the rotating mechanism, the baffle plates move along with the sliding blocks, the adjacent baffle plates are driven to move by the baffle plates, and the through holes in the shell are blocked by the baffle plates to avoid the spread of fire; the sliding block is fixedly connected with a rotating mechanism, and the sliding block is driven to slide after the fuse is broken through the rotating mechanism, so that the sliding block is beneficial to automatic movement; the rotating mechanism is fixed with a resetting mechanism, and the resetting mechanism resets the rotating mechanism, so that the resetting of the baffle is facilitated, and the next use of the device is facilitated; a plurality of baffles are Z-shaped structures and are folded, so that the folding of the baffles can reduce the blockage of the through holes of the shell by the area of the baffles, and the smoke discharge is facilitated.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection between the housing and the return mechanism shown in FIG. 1;

fig. 3 is an enlarged view of a portion a shown in fig. 1.

In the figure: 1. the device comprises a shell, a 2, a blocking mechanism, a 21, a baffle, a 22, a sliding block, a 3, a reset mechanism, a 31, a first gear, a 32, a chain, a 33, a handle, a 34, a second gear, a 4, a fuse, a 5, a rotating mechanism, a 51, a pull rope, a 52, a guide post, a 53, a roller, a 54, a clockwork spring, a 55 and a rotating post.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a foldable smoke-discharging fire-proof valve includes a housing 1, a blocking mechanism 2 is fixed on the housing 1, the blocking mechanism 2 includes a baffle 21 and a slider 22, the baffle 21 is rotatably connected to the housing 1, two adjacent baffles 21 are connected by a hinge, the slider 22 is fixed on the baffle 21, and the slider 22 is slidably connected to the housing 1; the blocking mechanism 2 is fixedly connected to the rotating mechanism 5, the rotating mechanism 5 is installed on the shell 1, the resetting mechanism 3 is sleeved on the rotating mechanism 5, the resetting mechanism 3 is installed on the shell 1, the fuse 4 is fixed on the shell 1, and the fuse 4 is fixedly connected to the rotating mechanism 5.

As a technical optimization scheme of the utility model, slewing mechanism 5 includes stay cord 51, cylinder 53, clockwork spring 54 and rotation post 55, the one end of stay cord 51 is fixed in slider 22, the other end of stay cord 51 is fixed in cylinder 53, cylinder 53 passes through rotation post 55 rotate connect in casing 1, rotation post 55 has cup jointed clockwork spring 54, the one end of clockwork spring 54 is fixed in casing 1, the other end of clockwork spring 54 is fixed in rotation post 55.

As a technical optimization scheme of the present invention, the rotating mechanism 5 further includes a guide post 52, the guide post 52 is fixed to the housing 1, and the pull rope 51 is slidably connected to the guide post 52.

As a technical optimization scheme of the utility model, canceling release mechanical system 3 includes first gear 31, chain 32, handle 33 and second gear 34, first gear 31 cup joint in rotate post 55, second gear 34 passes through handle 33 rotate connect in casing 1, first gear 31 mesh in chain 32, second gear 34 mesh in chain 32.

As a technical optimization scheme of the utility model, the top and the bottom of baffle 21 all are fixed with slider 22, slewing mechanism 5 about the central symmetry setting of casing 1.

When the utility model is used, firstly, the clockwork spring 54 contracts, when the temperature rises, the fuse 4 breaks, so that the pull rope 51 is not fixed on the shell 1 by the fuse 4, then the clockwork spring 54 opens, the clockwork spring 54 drives the rotating column 55 to rotate, the roller 53 drives the clockwork spring 54 to rotate, so that the pull rope 51 is wound on the pull rope 51, so that the pull rope 51 drives the slider 22 to slide towards the handle 33, the baffle 21 moves along the slider 22, the baffle 21 drives the adjacent baffle 21 to move, and the baffle 21 blocks the through hole on the shell 1 to avoid the fire spreading; when the fire is extinguished, the device can be continuously used, the handle 33 is rotated, the handle 33 drives the second gear 34 to rotate, the second gear 34 drives the chain 32 to rotate, the chain 32 drives the first gear 31 to rotate, the first gear 31 enables the rotating column 55 to drive the roller 53 to rotate in the reverse direction, the pull rope 51 is driven from the roller 53 direction, so that the spring 54 is contracted, then the baffle plate 21 moves in the reverse direction, the slide block 22 drives the pull rope 51 to move, then the pull rope 51 is fixed on the shell 1 through the fuse 4, the pull rope 51 is tightened, and the spring 54 is prevented from driving the roller 53 to rotate.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a foldable smoke exhaust fire damper, includes casing (1), its characterized in that: a blocking mechanism (2) is fixed on the shell (1), the blocking mechanism (2) comprises baffle plates (21) and sliding blocks (22), the baffle plates (21) are rotatably connected to the shell (1), two adjacent baffle plates (21) are connected through hinges, the sliding blocks (22) are fixed on the baffle plates (21), and the sliding blocks (22) are connected to the shell (1) in a sliding manner; blocking mechanism (2) fixed connection in slewing mechanism (5), slewing mechanism (5) install in casing (1), slewing mechanism (5) are gone up to cup jointed canceling release mechanical system (3), canceling release mechanical system (3) install in casing (1), be fixed with fuse (4) on casing (1), fuse (4) fixed connection in slewing mechanism (5).

2. A foldable smoke evacuation fire damper as claimed in claim 1, wherein: the rotating mechanism (5) comprises a pull rope (51), a roller (53), a clockwork spring (54) and a rotating column (55), one end of the pull rope (51) is fixed on the sliding block (22), the other end of the pull rope (51) is fixed on the roller (53), the roller (53) is rotatably connected to the shell (1) through the rotating column (55), the rotating column (55) is sleeved with the clockwork spring (54), one end of the clockwork spring (54) is fixed on the shell (1), and the other end of the clockwork spring (54) is fixed on the rotating column (55).

3. A foldable smoke evacuation fire damper as claimed in claim 2, wherein: the rotating mechanism (5) further comprises a guide post (52), the guide post (52) is fixed on the shell (1), and the pull rope (51) is connected to the guide post (52) in a sliding mode.

4. A foldable smoke evacuation fire damper as claimed in claim 2, wherein: the reset mechanism (3) comprises a first gear (31), a chain (32), a handle (33) and a second gear (34), the first gear (31) is sleeved on the rotating column (55), the second gear (34) is rotatably connected to the shell (1) through the handle (33), the handle (33) is rotatably connected to the shell (1), the first gear (31) is meshed with the chain (32), and the second gear (34) is meshed with the chain (32).

5. A foldable smoke evacuation fire damper as claimed in claim 1, wherein: the top end and the bottom end of the baffle (21) are both fixed with the sliding blocks (22), and the rotating mechanism (5) is arranged symmetrically relative to the center of the shell (1).

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