Smoke exhaust fireproof valve connecting mechanism

Abstract

The utility model discloses a smoke exhaust fireproof valve connecting mechanism, which comprises a chimney pipeline and a fireproof valve body, and is characterized in that a first mounting frame is fixedly connected to the chimney pipeline, a second mounting frame is fixedly connected to the fireproof valve body, a plurality of mounting cavities are symmetrically formed in the first mounting frame, and a plurality of second mounting cavities are symmetrically formed in the second mounting frame. When the temperature and the air pressure in the fireproof valve body and the chimney pipeline rise, the thermal expansion liquid made of mercury absorbs heat and expands to drive the sealing sliding plate to move, the sealing sliding plate drives the connecting plate and the anti-disengaging rod to move through the connecting rod, and the anti-disengaging rod moves to abut against the side face, away from the inserting plate, of the movable plate. And the stability of the fireproof valve body installed on the chimney pipeline is further improved, the situation that the fireproof valve body falls off from the chimney pipeline due to the fact that the air pressure in the fireproof valve body and the chimney pipeline rises is avoided, and the overall safety and the installation stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of fire damper installation technology, specifically to a smoke exhaust fire damper connection mechanism. Background Technology

[0002] The outer frame of a fire damper is generally welded or connected with screws and nuts. The outer frame of the fire damper is used to fix the fire pipes on the outside and to fix the fire damper on the inside. The fire damper frame needs to have a certain fire resistance integrity, and the material thickness of the fire damper frame is not less than 2mm.

[0003] In traditional structures, the outer frame of a fire damper is typically fixed to the chimney duct with numerous screws. When the flue gas temperature rises to 280°C, the temperature-sensing element inside the fire damper melts, triggering the valve to automatically close and create a sealed space. At this time, the internal gas pressure of the valve body continues to rise, and under high pressure, the screws are prone to stripping, posing a risk that the fire damper may detach from the duct, affecting the safety and stability of the system. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a smoke exhaust fire damper connection mechanism. It solves the problem that the screws are prone to stripping under high pressure due to the continuous rise of internal air pressure in the valve body, which poses a risk of the fire damper falling off the pipeline and affecting the safety and stability of the system.

[0005] To achieve the above objectives, this utility model provides a smoke exhaust fire damper connection mechanism, including a chimney pipe and a fire damper body, characterized in that: a first mounting frame is fixedly connected to the chimney pipe, and a second mounting frame is fixedly connected to the fire damper body; multiple mounting cavities are symmetrically opened on the first mounting frame; multiple insertion plates are symmetrically fixedly connected to the second mounting frame; multiple connection ports are symmetrically opened on the first mounting frame; each insertion plate extends through the connection port into the mounting cavity; the insertion plate is installed in the mounting cavity by means of a mounting assembly; and an anti-detachment assembly is provided in each mounting cavity.

[0006] Each of the anti-detachment components includes a storage box, each storage box contains a thermally expanding liquid, each storage box has a slidably connected sealing plate on its inner wall, each sealing plate is fixedly connected to a connecting rod, each storage box has an opening, each connecting rod has an end opposite to the sealing plate passing through the opening and fixedly connected to a connecting plate, and each connecting plate is fixedly connected to an anti-detachment rod.

[0007] The beneficial effects of this utility model are:

[0008] When the temperature and pressure in the fire damper body and the chimney pipe rise, the mercury-based thermal expansion liquid absorbs heat and expands, causing the sealing slide plate to move. The sealing slide plate, through the connecting rod, moves the connecting plate and the anti-detachment rod. The anti-detachment rod moves to abut against the side of the moving plate away from the insertion plate, further improving the stability of the fire damper body installed on the chimney pipe. This prevents the fire damper body from falling off the chimney pipe due to the increased air pressure in the fire damper body and the chimney pipe, thus improving the overall safety and installation stability.

[0009] Preferably, each of the mounting components includes a threaded cylinder, each threaded cylinder is threadedly connected to a threaded rod, each threaded rod is fixedly connected to a movable plate, and each movable plate is slidably connected to the inner wall of the mounting cavity.

[0010] Preferably, each of the movable plates is fixedly connected to an insertion block, and each of the insertion plates has an insertion slot that matches the insertion block.

[0011] Preferably, a plurality of mounting openings are symmetrically provided on the side wall of the first mounting frame, each mounting opening is connected to the mounting cavity, and each threaded cylinder is disposed in the mounting opening.

[0012] Preferably, a plurality of rotating circular plates are symmetrically rotatably connected to the side wall of the first mounting frame, each of the threaded cylinders is fixedly connected to the rotating circular plate, and each of the rotating circular plates is provided with a cross groove.

[0013] Preferably, the thermally expanding liquid is mercury, which expands when heated, thus propelling the sealing slide plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] When the temperature and pressure in the fire damper body and the chimney pipe rise, the mercury-based thermal expansion liquid absorbs heat and expands, causing the sealing slide plate to move. The sealing slide plate, through the connecting rod, moves the connecting plate and the anti-detachment rod. The anti-detachment rod moves to abut against the side of the moving plate away from the insertion plate, further improving the stability of the fire damper body installed on the chimney pipe. This prevents the fire damper body from falling off the chimney pipe due to the increased air pressure in the fire damper body and the chimney pipe, thus improving the overall safety and installation stability. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional view of a portion of the structure of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a cross-sectional view of the first mounting frame and the second mounting frame in this utility model;

[0020] Figure 5 for Figure 3 Enlarged view of section B in the middle.

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Chimney duct; 101. First mounting frame; 102. Mounting cavity; 2. Fire damper body; 201. Second mounting frame; 202. Insertion plate; 3. Mounting assembly; 301. Threaded cylinder; 302. Threaded rod; 303. Moving plate; 304. Insertion block; 305. Rotating circular plate; 4. Anti-detachment assembly; 401. Storage tank; 402. Thermally expanding liquid; 403. Sealing slide plate; 404. Connecting rod; 405. Connecting plate; 406. Anti-detachment rod. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 This embodiment provides a smoke exhaust fire damper connection mechanism, including a chimney pipe 1 and a fire damper body 2. Considering that after the valve in the fire damper body 2 is closed, the internal air pressure of the valve body continues to rise, and the screws are prone to stripping under high pressure, there is a risk that the fire damper will fall off the pipe. A first mounting frame 101 is fixedly connected to the chimney pipe 1, and a second mounting frame 201 is fixedly connected to the fire damper body 2. A plurality of mounting cavities 102 are symmetrically opened on the first mounting frame 101, and a plurality of insertion plates 202 are symmetrically fixedly connected on the second mounting frame 201. A plurality of connection ports are symmetrically opened on the first mounting frame 101, and each insertion plate 202 extends through the connection port into the mounting cavity 102. The insertion plate 202 is installed in the mounting cavity 102 by setting an installation component 3, and an anti-detachment component 4 is set in each mounting cavity 102.

[0025] Each anti-detachment component 4 includes a storage box 401, each storage box 401 contains a thermally expanding liquid 402, each storage box 401 has a sealing plate 403 slidably connected to its inner wall, each sealing plate 403 is fixedly connected to a connecting rod 404, each storage box 401 has an opening, each connecting rod 404 has one end opposite to the sealing plate 403 passing through the opening and fixedly connected to a connecting plate 405, and each connecting plate 405 is fixedly connected to an anti-detachment rod 406.

[0026] In summary, the improvement of this embodiment lies in:

[0027] When the temperature and pressure in the fire damper body 2 and the chimney pipe 1 rise, the mercury-based thermally expanding liquid 402 absorbs heat and expands, causing the sealing slide plate 403 to move. The sealing slide plate 403, through the connecting rod 404, drives the connecting plate 405 and the anti-detachment rod 406 to move. The anti-detachment rod 406 moves to abut against the side of the moving plate 303 away from the insertion plate 202, further improving the stability of the fire damper body 2 installed on the chimney pipe 1. This prevents the fire damper body 2 from falling off the chimney pipe 1 due to the rise in pressure in the fire damper body 2 and the chimney pipe 1, thus improving the overall safety and installation stability.

[0028] Based on the above, other structures also need to be disclosed in detail, such as:

[0029] Please see Figures 2-5 Considering the need to install the fire damper body 2 on the chimney pipe 1, each mounting component 3 includes a threaded cylinder 301, each threaded cylinder 301 is threadedly connected to a threaded rod 302, each threaded rod 302 is fixedly connected to a movable plate 303, each movable plate 303 is slidably connected to the inner wall of the mounting cavity 102, each movable plate 303 is fixedly connected to an insertion block 304, each insertion plate 202 has an insertion groove matching the insertion block 304, and multiple mounting ports are symmetrically opened on the side wall of the first mounting frame 101, each mounting port is connected to the mounting cavity 102, and each threaded cylinder 301 is set in the mounting port. Multiple rotating circular plates 305 are symmetrically rotatably connected to the side wall of the mounting frame 101. Each threaded cylinder 301 is fixedly connected to the rotating circular plate 305. Each rotating circular plate 305 has a cross groove. When installing the fire damper body 2, the insertion plate 202 is inserted into the mounting cavity 102, and the tool is inserted into the cross groove of the rotating circular plate 305. By rotating the tool, the rotating circular plate 305 is driven to rotate. The rotating circular plate 305 drives the threaded cylinder 301 to rotate. The threaded cylinder 301 drives the moving plate 303 and the insertion block 304 to move through the threaded rod 302. The insertion block 304 is inserted into the insertion groove of the insertion plate 202, and the fire damper body 2 is installed on the chimney pipe 1.

[0030] Please see Figure 4and Figure 5 The thermally expanding liquid 402 is mercury. The mercury expands when heated, which pushes the sealing slide plate 403 to move. The thermally expanding liquid 402, which is made of mercury, absorbs heat and expands, which drives the sealing slide plate 403 to move.

[0031] In summary, the working principle of this solution is as follows:

[0032] When installing the fire damper body 2, the insertion plate 202 is inserted into the installation cavity 102, and the tool is inserted into the cross groove of the rotating circular plate 305. The rotating tool drives the rotating circular plate 305 to rotate, and the rotating circular plate 305 drives the threaded cylinder 301 to rotate. The threaded cylinder 301 drives the moving plate 303 and the insertion block 304 to move through the threaded rod 302. The insertion block 304 is inserted into the insertion groove of the insertion plate 202, and the fire damper body 2 is installed on the chimney pipe 1.

[0033] When the temperature exceeds 280 degrees Celsius, the temperature sensing element inside the fire damper body 2 melts, triggering the valve to close automatically. At this time, the temperature and air pressure in the fire damper body 2 and the chimney pipe 1 increase. The mercury-based thermal expansion liquid 402 absorbs heat and expands, causing the sealing slide plate 403 to move. The sealing slide plate 403, through the connecting rod 404, drives the connecting plate 405 and the anti-detachment rod 406 to move. The anti-detachment rod 406 moves to abut against the side of the moving plate 303 away from the insertion plate 202, further improving the stability of the fire damper body 2 installed on the chimney pipe 1. This prevents the fire damper body 2 from falling off the chimney pipe 1 due to the increased air pressure in the fire damper body 2 and the chimney pipe 1, thus improving the overall safety and installation stability.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flue gas damper connection comprising a chimney conduit (1) and a damper body (2), characterized in that: A first mounting frame (101) is fixedly connected to the chimney pipe (1), and a second mounting frame (201) is fixedly connected to the fire damper body (2). A plurality of mounting cavities (102) are symmetrically opened on the first mounting frame (101), and a plurality of insertion plates (202) are symmetrically fixedly connected to the second mounting frame (201). A plurality of connection ports are symmetrically opened on the first mounting frame (101), and each insertion plate (202) extends into the mounting cavity (102) through the connection port. The insertion plate (202) is installed in the mounting cavity (102) by means of a mounting component (3), and each mounting cavity (102) is provided with an anti-detachment component (4). Each of the anti-detachment components (4) includes a storage box (401), each of the storage boxes (401) is provided with a thermal expansion liquid (402), each of the storage boxes (401) is slidably connected to a sealing plate (403) on its inner wall, each of the sealing plate (403) is fixedly connected to a connecting rod (404), each of the storage boxes (401) has an opening, each of the connecting rods (404) has one end away from the sealing plate (403) passing through the opening and fixedly connected to a connecting plate (405), and each of the connecting plates (405) is fixedly connected to an anti-detachment rod (406).

2. A connection mechanism for a smoke control fire damper according to claim 1, wherein: Each of the mounting components (3) includes a threaded cylinder (301), each of the threaded cylinders (301) is threadedly connected to a threaded rod (302), each of the threaded rods (302) is fixedly connected to a movable plate (303), and each of the movable plates (303) is slidably connected to the inner wall of the mounting cavity (102).

3. A connection mechanism for a smoke control fire damper according to claim 2, wherein: Each of the movable plates (303) is fixedly connected to an insertion block (304), and each of the insertion plates (202) has an insertion slot that matches the insertion block (304).

4. A connection mechanism for a smoke control fire damper according to claim 3, wherein: The first mounting frame (101) has a plurality of mounting openings symmetrically provided on its sidewall. Each mounting opening is connected to the mounting cavity (102), and each threaded cylinder (301) is disposed in the mounting opening.

5. A connection mechanism for a smoke control fire damper according to claim 4, wherein: Multiple rotating circular plates (305) are symmetrically rotatably connected to the side wall of the first mounting frame (101). Each threaded cylinder (301) is fixedly connected to the rotating circular plate (305), and each rotating circular plate (305) has a cross groove.

6. A connection mechanism for a smoke control fire damper according to claim 1, wherein: The thermally expanding liquid (402) is mercury, which expands when heated and pushes the sealing slide plate (403) to move.

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