Fire damper booster device

Abstract

The utility model relates to fire damper technical field provides a kind of fire damper power-assisted device, including valve body, still include: first leaf axle, set to the inside upper of valve body, and outside fixed installation has first valve leaf;Second leaf axle, set to the inside lower of valve body, and outside fixed installation has second valve leaf;Adjusting structure, first valve leaf inside valve body can be driven to swing, to open or close first valve leaf;Transmission assembly, when adjusting structure operates, synchronously drive second valve leaf inside valve body swing, to open or close second valve leaf.The utility model, can utilize hydraulic cylinder and adjusting structure cooperation, provide power assistance, to facilitate opening or closing fire damper, while, when adjusting structure operates, cooperate transmission assembly, drive second valve leaf synchronous opening or closing, realize single hydraulic cylinder drive first valve leaf and second valve leaf, reach the effect of double closed fire damper, improve the fire stability and safety of fire damper.

Description

Technical Field

[0001] This utility model relates to the field of fire damper technology, and in particular to a fire damper assist device. Background Technology

[0002] Fire dampers are movable sealing devices used to prevent fire in pipelines. They can meet the requirements of fire resistance stability and integrity for a certain period of time and prevent the spread of fire and toxic high-temperature smoke through the duct during a fire.

[0003] Currently, existing fire dampers are easily affected by dust and moisture in the outside air during actual use. When fire dampers are affected by these factors, the rotation of the valve leaf inside the fire damper is easily obstructed. Under such circumstances, the existing valve leaf, which is opened manually, is difficult to open smoothly. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art where the handle rotation is easily obstructed when the fire damper blade is closed, making it impossible to open the handle smoothly.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fire damper assist device: including a valve body, and further including:

[0006] The first leaf shaft is located inside the upper part of the valve body, and the first valve leaf is fixedly installed on the outside.

[0007] The second leaf shaft is located inside the lower part of the valve body, and the second valve leaf is fixedly installed on the outside.

[0008] The adjustment structure can drive the first valve leaf inside the valve body to swing, so as to open or close the first valve leaf;

[0009] The transmission component can synchronously drive the second valve leaf inside the valve body to swing during the operation of the adjustment structure, so as to open or close the second valve leaf.

[0010] In a preferred embodiment, the adjustment structure includes:

[0011] A connecting bracket is installed on the outer right side wall of the valve body, and a connecting block is hinged to the inner right side wall.

[0012] The front end of the connecting block is fixedly connected to a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected to a push frame.

[0013] A movable plate is hinged to the inner wall of the push frame, and a connecting column is fixedly connected to the top left side of the movable plate;

[0014] A mounting bracket is hinged to the left outer wall of the connecting column.

[0015] The technical effect of adopting the above-mentioned further solution is that the connecting block can provide support for the use of the hydraulic cylinder, making the use of the hydraulic cylinder more stable, and the hydraulic cylinder can provide power and support for the use of the push frame.

[0016] In a preferred embodiment, the adjustment structure further includes:

[0017] The connecting plate has a first sliding column fixedly connected to its bottom left side;

[0018] The left side of the connecting column is fixedly connected to the right side of the connecting plate through the mounting bracket;

[0019] A sliding frame is slidably connected to the outer wall of the first sliding column.

[0020] The technical effect of adopting the above-mentioned further solution is that the connecting column provides support for the use of the connecting plate, making the use of the connecting plate more stable.

[0021] In a preferred embodiment, the adjustment structure further includes:

[0022] The support frame is hinged at the top to the bottom of the sliding frame;

[0023] The second sliding column has a swing plate fixedly connected to its left side, and the second sliding column is slidably connected to the upper left inner wall of the sliding frame.

[0024] The first mounting post is fixedly connected to the upper left side of the swing plate, and the left side of the first mounting post passes through the right side of the valve body and is fixedly connected to the right side of the first blade shaft.

[0025] The technical effect of adopting the above-mentioned further solution is that the swing plate provides support and power for the use of the first mounting column, and the first mounting column provides power for the use of the first blade shaft.

[0026] In a preferred embodiment, the transmission assembly includes:

[0027] The inner wall of the first gear is fixedly connected to the outer left wall of the first mounting post.

[0028] The technical effect of adopting the above-mentioned further solution is that the first mounting column provides support and power for the use of the first gear, enabling the first gear to achieve stable movement.

[0029] In a preferred embodiment, the transmission assembly further includes:

[0030] The rack has its rear end meshing with the front end of the first gear, and a limiting groove is provided at the front end;

[0031] The inner wall of the limiting groove is slidably connected to a limiting frame.

[0032] The technical effect of adopting the above-mentioned further solution is that the first gear provides power for the rack, enabling the rack to move stably.

[0033] In a preferred embodiment, the left front end of the limiting frame is fixedly connected to the right side of the valve body;

[0034] A second gear is engaged at the lower rear end of the rack, and a second mounting post is fixedly connected to the left side of the second gear.

[0035] The technical effect of adopting the above-mentioned further solution is that the valve body provides support for the use of the limit frame, enabling the limit frame to work stably on the right side of the valve body, and the rack provides power for the rotation of the second gear.

[0036] In a preferred embodiment, the left side of the second mounting post passes through the right side of the valve body and is fixedly connected to the right side of the second blade shaft.

[0037] The technical effect of adopting the above-mentioned further solution is that the second mounting column provides power for the use of the second blade shaft, enabling the second blade shaft to move stably.

[0038] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0039] In this invention, when the pusher frame, under the action of the hydraulic cylinder, pushes the moving plate forward toward the valve body, the moving plate can drive the connecting plate on the connecting column to move forward, causing the connecting plate to drive the first sliding column to slide within the sliding frame. Consequently, the sliding frame can rotate forward on the support frame. Simultaneously, the second sliding column inside the sliding frame can rotate forward. Under the movement of the second sliding column, the swing plate can simultaneously drive the first mounting column to rotate forward, causing the first leaf shaft inside the valve body to drive the first valve leaf to rotate forward. This allows the fire damper blade to open smoothly. Compared to manually opening and closing the first valve leaf, this invention provides assistance and makes the use of the first valve leaf more accurate and convenient.

[0040] This invention, under the flipping action of the first mounting column within the adjusting structure, can synchronously drive the first gear to flip. When the first gear rotates forward, the rack can move downward. When the rack moves downward, the second gear can synchronously flip forward. The second mounting column on the second gear can simultaneously drive the second leaf shaft to flip inside the valve body, so that the second valve leaf outside the second leaf shaft can synchronously flip inside the valve body while the first valve leaf on the adjusting structure reverses. This allows a single power source to drive the first and second valve leaves to rotate, saving resources, achieving the effect of a double-sealed fireproof valve, and improving the fire resistance stability and safety of the fireproof valve. Attached Figure Description

[0041] Figure 1 A schematic diagram of the main structure of a fire damper assist device provided by this utility model;

[0042] Figure 2 A right-side view of a fire damper assist device provided by this utility model;

[0043] Figure 3 A front view structural schematic diagram of a fire damper assist device provided by this utility model;

[0044] Figure 4 A rear view structural diagram of a fire damper assist device provided by this utility model;

[0045] Figure 5 A slanted view of the structure of a fire damper assist device provided by this utility model;

[0046] Figure 6 This utility model provides a fire damper assist device. Figure 1 Enlarged structural diagram at point A;

[0047] Figure 7 This utility model provides a fire damper assist device. Figure 2 Enlarged structural diagram at point B;

[0048] Figure 8 This utility model provides a fire damper assist device. Figure 5 A magnified structural diagram at point C.

[0049] Legend:

[0050] 1. Valve body; 2. First impeller shaft; 3. First valve blade; 4. Second impeller shaft; 5. Second valve blade; 6. Adjustment structure; 61. Connecting frame; 62. Connecting block; 63. Hydraulic cylinder; 64. Push frame; 65. Moving plate; 66. Connecting column; 67. Connecting plate; 68. First sliding column; 69. Sliding frame; 610. Support frame; 611. Second sliding column; 612. Swing plate; 613. First mounting column; 614. Mounting frame; 7. Transmission assembly; 71. First gear; 72. Rack; 73. Limiting groove; 74. Limiting frame; 75. Second gear; 76. Second mounting column. Detailed Implementation

[0051] 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

[0052] Please see Figures 1-7 This embodiment provides a fire damper assist device that facilitates the opening or closing of the first valve leaf 3. The specific idea is as follows:

[0053] The fire damper assist device includes a valve body 1. In addition, the fire damper assist device also includes: a first leaf shaft 2, which is located inside the upper part of the valve body 1 and a first valve leaf 3 is fixedly installed on the outside; a second leaf shaft 4, which is located inside the lower part of the valve body 1 and a second valve leaf 5 is fixedly installed on the outside. The first valve leaf 3 and the second valve leaf 5 are the same size.

[0054] In order to drive the first valve leaf 3, this embodiment provides an adjustment structure 6, which can drive the first valve leaf 3 inside the valve body 1 to swing, so as to open or close the first valve leaf 3.

[0055] In this embodiment, the specific structure of the adjustment structure 6 is not specifically limited. As an example, the adjustment structure 6 in this embodiment includes: a connecting frame 61, which is installed on the outer right side of the valve body 1, and a connecting block 62 is hinged to the inner right side; wherein, the front end of the connecting block 62 is fixed to a hydraulic cylinder 63 by a hexagonal bolt, and the output end of the hydraulic cylinder 63 is fixedly connected to a push frame 64; a moving plate 65 is hinged to the inner wall of the push frame 64, a connecting column 66 is fixedly connected to the top left side of the moving plate 65, and a mounting frame 614 is hinged to the outer left side of the connecting column 66.

[0056] In addition, it should be noted that the pusher 64 is U-shaped, the connecting block 62 is U-shaped, the moving plate 65 is arc-shaped, and in this embodiment, the connecting column 66 is a cylinder.

[0057] The adjustment structure 6 also includes: a connecting plate 67, the left side of the connecting column 66 passing through the mounting bracket 614 and fixedly connected to the right side of the connecting plate 67, and a first sliding column 68 fixedly connected to the bottom left side of the connecting plate 67; wherein, a sliding frame 69 is slidably connected to the outer wall of the first sliding column 68, and a second sliding column 611 is slidably connected to the upper left inner wall of the sliding frame 69.

[0058] It should also be noted that the connecting plate 67 is elliptical, the sliding frame 69 is elliptical, and the sliding frame 69 can achieve fan-shaped oscillation when it moves with the first sliding column 68.

[0059] The adjustment structure 6 also includes: a support frame 610, the top of which is hinged to the bottom of the sliding frame 69; a swing plate 612 is fixedly connected to the left side of the second sliding column 611; a first mounting column 613 is fixedly connected to the upper left side of the swing plate 612; the left side of the first mounting column 613 passes through the right side of the valve body 1 and is fixedly connected to the right side of the first blade shaft 2.

[0060] In addition, it should be noted that the support frame 610 is "L" shaped. While the support frame 610 can provide support for the operation of the sliding frame 69, it can effectively prevent the sliding frame 69 from falling off the right side of the valve body 1 during operation. The swing plate 612 is arc-shaped, and the mounting frame 614 is "L" shaped. The bottom left side of the mounting frame 614 is fixedly connected to the right side of the valve body 1.

[0061] In this embodiment, the hydraulic cylinder 63 pushes the pusher frame 64 forward, and then the pusher frame 64 can drive the connecting column 66 on the moving plate 65 to swing forward on the mounting frame 614. When the connecting column 66 swings, it can drive the connecting plate 67 to swing forward. At this time, the connecting plate 67 can drive the first sliding column 68 to slide upward in the sliding frame 69, so that the sliding frame 69 flips backward on the support frame 610. Then, the second sliding column 611 in the sliding frame 69 can slide downward in the front end in the sliding frame 69. When the second sliding column 611 slides, the first mounting column 613 on its left swing plate 612 can rotate forward synchronously, so that the first mounting column 613 drives the first blade shaft 2 to flip forward. Example

[0062] like Figures 1-8 As shown, based on Embodiment 1, this embodiment also provides a fire damper assist device that synchronously drives the second valve leaf 5 to swing, thereby achieving simultaneous dual driving of the first valve leaf 3 and the second valve leaf 5. The specific idea is as follows:

[0063] The fire damper assist device is equipped with a transmission component 7, which can synchronously drive the second valve leaf 5 inside the valve body 1 to swing during the operation of the adjusting structure 6, so as to open or close the second valve leaf 5. The transmission component 7 includes:

[0064] The inner wall of the first gear 71 is fixedly connected to the left outer wall of the first mounting post 613. The transmission assembly 7 also includes a rack 72, the rear end of which meshes with the front end of the first gear 71; a limiting groove 73 is formed at the front end of the rack 72, and a limiting bracket 74 is slidably connected to the inner wall of the limiting groove 73.

[0065] In addition, it should be noted that the limiting groove 73 is convex, and limiting blocks are fixedly installed at the rear of the upper and lower ends of the rack 72, which can effectively prevent the rack 72 from falling off the first gear 71 when it moves up and down.

[0066] In addition, the transmission assembly 7 also includes: the front left side of the limit frame 74 is fixedly connected to the right side of the valve body 1; the lower rear end of the rack 72 is meshed with a second gear 75, and the left side of the second gear 75 is fixedly connected to a second mounting post 76; the transmission assembly 7 also includes: the left side of the second mounting post 76 passes through the right side of the valve body 1 and is fixedly connected to the right side of the second blade shaft 4.

[0067] In addition, it should be noted that the second mounting post 76 is a cylinder, and the first gear 71 and the second gear 75 are exactly the same in size and material.

[0068] In this embodiment, the rotation of the first mounting post 613 can drive the first gear 71 to rotate forward. The limiting groove 73 on the rack 72 slides downward on the limiting frame 74, driving the second gear 75 to rotate forward. This allows the second gear 75 to drive the second mounting post 76 to rotate forward, and then the second mounting post 76 can drive the second valve leaf 5 on the second leaf shaft 4 to rotate forward, thereby opening the second valve leaf 5.

[0069] Working principle: When the fire damper needs to be used, the hydraulic cylinder 63 is activated to drive the push frame 64 forward. The push frame 64 then drives the moving plate 65 forward. As the moving plate 65 moves forward, it causes the connecting column 66 to flip backward on the mounting frame 614. When the connecting column 66 flips backward, the connecting plate 67 also flips backward. When the connecting plate 67 flips backward, the first sliding column 68 slides upward within the sliding frame 69, causing the sliding frame 69 to flip backward on the support frame 610. When the second sliding column 611 flips backward on the support frame 610, it can simultaneously move the second sliding column 611 downward in front of the sliding frame 69. At this time, the swing plate 612 on the left side of the second sliding column 611 can flip forward. Under the reverse action of the swing plate 612, the first mounting column 613 on the left side can flip forward, so that the first mounting column 613 can drive the first blade shaft 2 inside the valve body 1 to flip forward. Under the action of the first blade shaft 2, the first valve leaf 3 on the outside of the first blade shaft 2 can flip forward, so that the first valve leaf 3 can be opened smoothly.

[0070] When the first mounting post 613 rotates forward, it simultaneously drives the first gear 71 to rotate forward on the right side of the valve body 1. When the first gear 71 rotates forward, the limiting groove 73 on the rack 72 can slide downward on the limiting bracket 74, so that the rack 72 slides downward stably on the right side of the valve body 1. When the rack 72 slides downward, the second gear 75 below can rotate forward synchronously. Under the rotation of the second gear 75, the second mounting post 76 on the left side of the second gear 75 can rotate forward synchronously, so that the second mounting post 76 can drive the second blade shaft 4 inside the valve body 1 to rotate forward. Under the action of the second blade shaft 4, the second valve blade 5 can rotate forward, so that the second valve blade 5 can quickly open or close at the same time as the hydraulic cylinder 63 drives the first valve blade 3 to open or close.

[0071] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0072] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fire damper assist device, comprising a valve body (1), characterized in that: It also includes: The first leaf shaft (2) is located inside the valve body (1) and above it, and the first valve leaf (3) is fixedly installed on the outside. The second leaf shaft (4) is located inside the lower part of the valve body (1), and the second valve leaf (5) is fixedly installed on the outside. The adjustment structure (6) can drive the first valve leaf (3) inside the valve body (1) to swing, so as to open or close the first valve leaf (3). The transmission assembly (7) can synchronously drive the second valve leaf (5) inside the valve body (1) to swing during the operation of the adjustment structure (6) in order to open or close the second valve leaf (5).

2. The fire damper assist device according to claim 1, characterized in that, The adjustment structure (6) includes: A connecting bracket (61) is installed on the outer right side of the valve body (1), and a connecting block (62) is hinged to the inner right side. Among them, the front end of the connecting block (62) is fixedly connected to a hydraulic cylinder (63), and the output end of the hydraulic cylinder (63) is fixedly connected to a pusher (64). A movable plate (65) is hinged to the inner wall of the push frame (64), and a connecting column (66) is fixedly connected to the top left side of the movable plate (65). The left outer wall of the connecting column (66) is hinged with a mounting bracket (614).

3. The fire damper assist device according to claim 2, characterized in that, The adjustment structure (6) also includes: The connecting plate (67) has a first sliding column (68) fixedly connected to its bottom left side; The left side of the connecting column (66) is fixedly connected to the right side of the connecting plate (67) through the mounting bracket (614); A sliding frame (69) is slidably connected to the outer wall of the first sliding column (68).

4. The fire damper assist device according to claim 3, characterized in that, The adjustment structure (6) also includes: The support frame (610) is hinged at its top to the bottom of the sliding frame (69); The second sliding column (611) has a swing plate (612) fixedly connected to its left side, and the second sliding column (611) is slidably connected to the upper left inner wall of the sliding frame (69); Among them, the upper left side of the swing plate (612) is fixedly connected to the first mounting post (613), and the left side of the first mounting post (613) passes through the right side of the valve body (1) and is fixedly connected to the right side of the first blade shaft (2).

5. The fire damper assist device according to claim 1, characterized in that, The transmission assembly (7) includes: The inner wall of the first gear (71) is fixedly connected to the left outer wall of the first mounting post (613).

6. The fire damper assist device according to claim 5, characterized in that, The transmission assembly (7) also includes: The rack (72) has its rear end meshing with the front end of the first gear (71), and a limiting groove (73) is provided at the front end. Among them, the inner wall of the limiting groove (73) is slidably connected to the limiting frame (74).

7. The fire damper assist device according to claim 6, characterized in that, The front left side of the limiting frame (74) is fixedly connected to the right side of the valve body (1); The lower rear end of the rack (72) is engaged with a second gear (75), and a second mounting post (76) is fixedly connected to the left side of the second gear (75).

8. The fire damper assist device according to claim 7, characterized in that, The left side of the second mounting post (76) passes through the right side of the valve body (1) and is fixedly connected to the right side of the second blade shaft (4).

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