Automatic fusing closing fireproof valve for exhaust fan

Abstract

The utility model relates to the technical field of exhaust fan fireproof valves, and discloses an automatic fusing closing fireproof valve for an exhaust fan. A connecting plate is installed at one end of fireproof cloth, through grooves are formed in the two sides of the interior of a connecting frame, a fuse link penetrates through the two through grooves, and the two ends of the fuse link are fixedly connected with cylinders; a limiting assembly is arranged in the cylinder body; according to the utility model, when the fuse link is fused due to high-temperature roasting, the fused fuse link enables the cylinder body to rotate on the outer side of the limiting column under the action of the gravity of the fuse link, one end of the fuse link is separated from the lower part of the connecting plate, the connecting plate moves downwards under the action of the gravity of the fuse link, and the connecting plate pulls one end of the fireproof cloth to move in the moving process; and when a connecting plate moves to the bottom of the inner side of the connecting frame, a first magnet is attracted to a second magnet, the position of the connecting plate can be fixed, and the fireproof effect of the fireproof cloth is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust fan fire damper technical field, concretely is a kind of automatic fuse closing fire damper for exhaust fan. BACKGROUND

[0002] Exhaust fan, by motor driven fan blade rotation drive airflow, make indoor and outdoor air exchange a kind of air conditioning electrical appliance. Also called ventilation fan. The purpose of exhaust is to remove the dirty air in room, adjust temperature, humidity and feeling effect. Exhaust fan is widely used in family and public place. However, when the motor of exhaust fan self-ignition or external fire occurs, flame can enter the interior of house through the exhaust duct of exhaust fan, thereby leading to fire spread, in order to improve the safety of exhaust fan, therefore, an automatic fuse closing fire damper for exhaust fan is provided. SUMMARY

[0003] The utility model aims at providing an automatic fuse closing fire damper for exhaust fan to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: an automatic fuse closing fire damper for exhaust fan, comprising

[0005] Frame body for exhaust fan installation, both sides of the inside of the frame body are equipped with fixing frame, and the fixing frame is equipped with closing assembly on it;

[0006] The closing assembly comprises connecting frame, support frame and fireproof cloth, the connecting frame is fixedly connected between the two fixing frames, both sides of the connecting frame are provided with baffle, the support frame is installed on the inside top of connecting frame, the fireproof cloth is installed on the inside top of connecting frame through support and is below support frame, one end of the fireproof cloth is equipped with connecting plate, both sides of the inside of the connecting frame are provided with through slot, and the through slot is penetrated by fuse link, both ends of the fuse link are fixedly connected with cylinder, and the inside of the cylinder is provided with limiting assembly.

[0007] As preferred, the limiting assembly comprises two limiting columns and two round plates, the two limiting columns are movably penetrated into the inside of cylinder, and the two round plates are fixedly connected to one end of two limiting columns respectively, limiting grooves are formed on both sides of the top of support frame, and the two round plates are located in the inside of two limiting grooves respectively.

[0008] As preferred, the connecting plate is in contact with the top of fuse link, and the length of the cylinder is less than the width of through slot.

[0009] As preferred, the bottom of the connecting plate is provided with a groove, the bottom of the groove is fixedly connected with two first magnets, the inner bottom of the connecting frame is provided with two second magnets, and the two first magnets are located directly above the two second magnets.

[0010] As preferred, the upper and lower inner sides of the connecting frame are fixedly connected with guide columns, and the two sides of the connecting plate are provided with guide blocks, and the guide columns movably penetrate one side of the guide blocks.

[0011] As preferred, the fireproof cloth is made of ceramic fiber cloth.

[0012] As preferred, the fuse link is made of bismuth-tin-zinc alloy.

[0013] Compared with the prior art, the utility model has the following technical effects:

[0014] 1、 the utility model discloses when the fuse link is roasted and fuses under high temperature, the fuse link moves downwards under the action of gravity after fusing, and the connecting plate moves in the process, and one end of the fireproof cloth is moved to the connecting frame, so that the fireproof cloth can be sealed, and the effect of fireproofing can be achieved.

[0015] 2、 the utility model discloses moving the connecting plate upwards, so that the first magnet on the connecting plate is separated from the top of the second magnet, then the connecting plate is moved to the inner side of the support frame, the fireproof cloth is folded to the inner side of the support frame, then the fuse link is penetrated into the inside of the through slot, the connecting plate falls above the fuse link, then the limiting column is penetrated into the inside of the cylinder, and the limiting column is used for limiting the two ends of the connecting plate, then the disc at one end of the limiting column is placed in the limiting slot, and the position of the limiting column is limited, so that the limiting column is prevented from falling off from the inside of the cylinder, and the replacement of the fuse link can be completed, which is simple and quick and convenient to install. ACCURACY

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The utility model discloses a structure schematic view;

[0018] Figure 2 It is the connection frame structure schematic view of the utility model;

[0019] Figure 3 It is the connection plate structure schematic view of the utility model;

[0020] Figure 4 It is the cross section structure schematic view of the utility model;

[0021] Figure 5 It is the support frame structure schematic view of the utility model.

[0022] Mark 1, frame; 2, fixed frame; 3, connecting frame; 4, baffle; 5, support frame; 6, fireproof cloth; 7, connecting plate; 8, recess; 9, through slot; 10, fuse link; 11, cylinder; 12, limiting column; 13, round plate; 14, limiting groove; 15, first magnet; 16, second magnet; 17, guide column; 18, guide block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] It should be known that the structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, not to limit the limiting conditions of the application that can be implemented, so it does not have the technical essence, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be achieved by the application, it should still fall within the scope of the technical content disclosed in the application.

[0025] EMBODIMENT

[0026] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of automatic fuse closing fire valve for exhaust fan, including the frame 1 for exhaust fan installation, the inside both sides of frame 1 are equipped with fixed frame 2, and fixed frame 2 is equipped with closing assembly.

[0027] By setting the closing assembly, the fireproof effect can be achieved; the closing assembly comprises a connecting frame 3, a support frame 5 and a fireproof cloth 6, the connecting frame 3 is fixedly connected between the two fixed frames 2, the two sides of the connecting frame 3 are provided with baffles 4, the support frame 5 is installed on the inner side top of the connecting frame 3, the fireproof cloth 6 is installed on the inner side top of the connecting frame 3 below the support frame 5 through a support, one end of the fireproof cloth 6 is provided with a connecting plate 7, the inside of the connecting frame 3 is provided with a through slot 9 on both sides, the inside of the two through slots 9 is penetrated by a fuse link 10, the two ends of the fuse link 10 are fixedly connected with cylinder bodies 11, the bottom of the connecting plate 7 is provided with a groove 8, the bottom of the groove 8 is fixedly connected with two first magnets 15, the inner side bottom of the connecting frame 3 is installed with two second magnets 16, the two first magnets 15 are located directly above the two second magnets 16, when the fuse link 10 is roasted by high temperature and is fused, the fuse link 10 is moved under the action of its own gravity, the cylinder body 11 is rotated on the outside of the limiting column 12, one end of the fuse link 10 is separated from below the connecting plate 7, at this time, the connecting plate 7 is moved downward under the action of its own gravity, the connecting plate 7 pulls one end of the fireproof cloth 6 to move in the moving process, so that the fireproof cloth 6 can block the connecting frame 3; the inside of the cylinder body 11 is provided with a limiting assembly.

[0028] In order to facilitate the installation and replacement of the fuse link 10; the limiting assembly comprises two limiting columns 12 and two circular plates 13, the two limiting columns 12 are movably penetrated into the inside of the cylinder body 11, the two circular plates 13 are fixedly connected to one end of the two limiting columns 12 respectively, the top of the support frame 5 is provided with a limiting slot 14 on both sides, the two circular plates 13 are located in the inside of the two limiting slots 14 respectively, the connecting plate 7 abuts against the top of the fuse link 10, the length of the cylinder body 11 is less than the width of the through slot 9, when replacing, the first magnet 15 on the connecting plate 7 is separated from the top of the second magnet 16 by moving the connecting plate 7 upward, then the connecting plate 7 is moved to the inside of the support frame 5, the fireproof cloth 6 is folded to the inside of the support frame 5, then the fuse link 10 is penetrated into the inside of the through slot 9, the connecting plate 7 falls above the fuse link 10, then the limiting column 12 is penetrated into the inside of the cylinder body 11 for limiting the two ends of the connecting plate 7, then the circular plate 13 at one end of the limiting column 12 is placed in the inside of the limiting slot 14 to limit the position of the limiting column 12, preventing the limiting column 12 from falling off from the inside of the cylinder body 11, so the replacement of the fuse link 10 can be completed.

[0029] The guiding column 17 is fixedly connected between the two inner sides of the connecting frame 3, the two sides of the connecting plate 7 are installed with guiding blocks 18, the guiding column 17 is movably penetrated into one side of the guiding block 18; when the connecting plate 7 moves downward under the action of its own gravity, the connecting plate 7 drives the guiding block 18 to move on the outside of the guiding column 17, which can ensure that the connecting plate 7 moves downward stably.

[0030] The fireproof cloth 6 is made of ceramic fiber cloth, which is spun into yarn by using ceramic fiber and a certain proportion of organic fiber, and then woven into cloth, and has the characteristics of high temperature resistance, low thermal conductivity, heat shock resistance and low heat capacity; the fuse link 10 is made of bismuth tin zinc alloy, which can be fused at 130 degrees, and the ceramic fiber cloth and the bismuth tin zinc alloy are prior art, which will not be described here.

[0031] When the motor of the exhaust fan is self-ignited or a fire occurs, the flame enters the inside of the connecting frame 3 through the exhaust duct of the exhaust fan, the fuse link 10 is fused under high temperature, and under the action of its own gravity, the cylinder 11 rotates outside the limiting column 12, one end of the fuse link 10 is separated from the lower side of the connecting plate 7, at this time the connecting plate 7 moves downward under the action of its own gravity, the connecting plate 7 drives the guide block 18 to move outside the guide column 17, which can ensure that the connecting plate 7 moves stably downward, and the connecting plate 7 pulls one end of the fireproof cloth 6 to move, so that the fireproof cloth 6 can block the connecting frame 3, and the fireproof effect of the fireproof cloth 6 is improved.

[0032] When the fused fuse link 10 needs to be replaced, the fused fuse link 10 is removed, then the connecting plate 7 is moved upward, so that the first magnet 15 on the connecting plate 7 is separated from the top of the second magnet 16, then the connecting plate 7 is moved to the inside of the support frame 5, the fireproof cloth 6 is folded to the inside of the support frame 5, then the fuse link 10 is inserted into the through slot 9, the connecting plate 7 is placed above the fuse link 10, then the limiting column 12 is inserted into the inside of the cylinder 11 for limiting the connecting plate 7 at both ends, and the round plate 13 at one end of the limiting column 12 is placed in the limiting slot 14 to limit the position of the limiting column 12 and prevent the limiting column 12 from falling off from the inside of the cylinder 11, so that the replacement of the fuse link 10 is completed, which is simple, fast and convenient to install.

[0033] Those skilled in the art can understand that the features described in various embodiments and / or claims of the present application can be combined or / and combined, even if such combination or combination is not explicitly described in the present application. In particular, the features described in various embodiments and / or claims of the present application can be combined and / or combined without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. An automatic fuse-closing fire damper valve for exhaust fans, characterized by: The utility model provides a frame body (1) for exhaust fan installation, both sides of the inside of the frame body (1) are equipped with fixed frame (2), and the fixed frame (2) is equipped with closing assembly on it. The closing assembly comprises connecting frame (3), support frame (5) and fireproof cloth (6), the connecting frame (3) is fixedly connected between two fixed frame (2), both sides of the connecting frame (3) are provided with baffle (4), the support frame (5) is installed on the inside top of connecting frame (3), the fireproof cloth (6) is installed on the inside top of connecting frame (3) through support and is located below support frame (5), one end of fireproof cloth (6) is equipped with connecting plate (7), both sides of the inside of connecting frame (3) are provided with through slot (9), and the inside of two through slot (9) is penetrated by fuse link (10), both ends of fuse link (10) are fixedly connected with cylinder (11), and the inside of cylinder (11) is provided with limiting assembly. The limiting assembly comprises two limiting columns (12) and two circular plates (13), two limiting columns (12) are movably penetrated into the inside of cylinder (11), two circular plates (13) are fixedly connected to one end of two limiting columns (12) respectively, and both sides of the top of support frame (5) are provided with limiting slot (14), and two circular plates (13) are located in the inside of two limiting slots (14) respectively.

2. An automatic fuse closing fire damper valve for exhaust fans according to claim 1, characterized in that: The connecting plate (7) abuts against the top of fuse link (10), and the length of cylinder (11) is less than the width of through slot (9).

3. An automatic fuse closing fire damper valve for exhaust fans according to claim 2, characterized in that: The bottom of connecting plate (7) is provided with recess (8), the bottom of recess (8) is fixedly connected with two first magnets (15), the inside bottom of connecting frame (3) is provided with two second magnets (16), and two first magnets (15) are located directly above two second magnets (16).

4. An automatic fuse closing fire damper valve for exhaust fans according to claim 1, characterized in that: The upper and lower inside of connecting frame (3) is fixedly connected with guide column (17), both sides of connecting plate (7) are provided with guide block (18), and guide column (17) is movably penetrated into one side of guide block (18).

5. An automatic fuse closing fire damper valve for exhaust fans as claimed in claim 1, wherein: The fireproof cloth (6) is made of ceramic fiber cloth.

6. An automatic fuse closing fire damper valve for exhaust fans as defined in claim 1, characterized in that: The fuse link (10) is made of bismuth-tin-zinc alloy.

7. An automatic fuse closing fire damper valve for exhaust fans as claimed in claim 1, wherein: ​

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