Mechanical automatic pressure relief equipment for fire fighting

Abstract

The utility model discloses mechanical automatic pressure relief equipment for fire fighting, and relates to the technical field of fire fighting machinery, the mechanical automatic pressure relief equipment for fire fighting comprises an equipment shell, the equipment shell is internally provided with a cavity, the inner wall of the cavity is fixedly connected with a fixed box, and the interior of the fixed box is rotatably connected with a door plate; the fire-fighting mechanical automatic pressure relief equipment comprises a fixed box, meshes are formed in the surface of the fixed box and penetrate into the fixed box, a sliding plate is slidably connected to the inner wall of the fixed box, the surface of the sliding plate is obliquely arranged, and a limiting groove is formed in the fixed box. And the sliding plate slides to not cover the meshes any more, then air entering the fixing box enters the interior of the equipment shell through the meshes, it is avoided that sliding of the device is blocked through a spring, and the device can be rapidly and effectively opened.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting machinery technology, and in particular to an automatic pressure relief device for fire-fighting machinery. Background Technology

[0002] The mechanical automatic pressure relief device (hereinafter referred to as "pressure relief device") is installed on the wall of the protected area and is normally in the closed state. The pressure relief device is an important component of the gas extinguishing system. When the gas extinguishing system sprays extinguishing agent into the protected area, it is used to prevent the pressure inside the building from increasing suddenly and causing damage to the building.

[0003] Patent No. CN219548741U proposes a mechanical automatic pressure relief device for fire protection. When depressurizing, the baffle drives the rack through the connecting frame via the sliding plate on the connecting rod. During the movement of the rack, the gear meshing with the rack drives the roller on the mounting frame to rotate via the rotating shaft, thus lifting the sealing plate. This allows the sealing plate to be opened in advance when the baffle moves, facilitating the rapid opening of the sealing plate.

[0004] However, during the implementation of this device, the spring needs to be squeezed to activate a series of measures, which can cause the door panel to open too slowly, resulting in the pressure inside the room not being released in time, and thus causing damage to the building. Therefore, a mechanical automatic pressure relief device for fire protection is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a mechanical automatic pressure relief device for fire fighting that can solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting mechanical automatic pressure relief device, including a device shell, an internal cavity, a fixed box fixedly connected to the inner wall of the cavity, a door panel rotatably connected to the inside of the fixed box, and a mesh opening on the surface of the fixed box, the mesh opening penetrating into the interior of the fixed box.

[0007] Preferably, a sliding plate is slidably connected to the inner wall of the fixed box, and the surface of the sliding plate is inclined.

[0008] Preferably, the fixed box has a limiting groove inside, and the inner wall of the limiting groove is slidably connected to the sliding plate.

[0009] Preferably, a sliding sleeve is fixedly connected inside the fixed box, and a sliding rod is slidably connected inside the sliding sleeve.

[0010] Preferably, the surface of the sliding rod is fixedly connected to the surface of the sliding plate, and the end of the sliding rod located outside the fixed box is circular.

[0011] Preferably, a fixed shell is fixedly connected inside the outer casing of the device, a baffle is slidably connected to the inner wall of the fixed shell, a fixed block is fixedly connected to the surface of the baffle, the surface of the fixed block is inclined, a sliding groove is formed on the surface of the fixed shell, and the surface of the fixed block is slidably connected to the inner wall of the sliding groove.

[0012] Preferably, the baffle is rotatably connected to a pulley, and the surface of the pulley is rotatably connected to the interior of the fixed shell.

[0013] Preferably, the sliding sleeve is inlaid with balls, the surface of the balls is slidably connected to the surface of the sliding rod, and the inner wall of the fixed box and the surface of the baffle are both fixedly connected with rubber pads.

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

[0015] (1) When the air pressure is too high, the door panel rotates and squeezes the sliding plate, so that the sliding plate no longer covers the mesh. The air that enters the fixed box enters the interior of the equipment shell through the mesh, avoiding the spring from blocking the sliding of the device, so that the device can be opened quickly and effectively.

[0016] (2) When the sliding plate slides, it pushes the sliding rod, which in turn presses the inclined surface of the fixed block. The fixed block moves the baffle, which then stops blocking the outlet. At the same time, the fixed block slides into the groove, thus avoiding the need to control the opening of the device by using springs and magnets. This avoids the need to overcome the resistance of springs and magnets when the device is not in use, allowing the device to be opened quickly. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the cavity in this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the fixing box of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the sliding sleeve of this utility model.

[0022] Reference numerals in the attached drawings: 1. Equipment casing; 2. Door panel; 3. Cavity; 4. Fixing box; 5. Mesh; 6. Sliding rod; 7. Slide groove; 8. Fixing shell; 9. Baffle; 10. Pulley; 11. Fixing block; 12. Sliding plate; 13. Sliding sleeve; 14. Rubber pad; 15. Limiting groove; 16. Ball bearing. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a mechanical automatic pressure relief device for fire fighting, including a device shell 1, a cavity 3 inside the device shell 1, a fixed box 4 fixedly connected to the inner wall of the cavity 3, a door panel 2 rotatably connected to the inside of the fixed box 4, and a mesh 5 on the surface of the fixed box 4, the mesh 5 penetrating into the inside of the fixed box 4, so that the inside of the fixed box 4 is connected to the inside of the device shell 1.

[0025] A sliding plate 12 is slidably connected to the inner wall of the fixed box 4, and the surface of the sliding plate 12 is inclined.

[0026] When the air pressure is high, the gas will push the door panel 2, causing the door panel 2 to rotate around the axis. The rotation of the door panel 2 will then compress the inclined surface of the sliding plate 12, causing the sliding plate 12 to slide inside the fixed box 4. The sliding plate 12 no longer covers the mesh 5, allowing the air inside the fixed box 4 to enter the equipment housing 1 through the mesh 5. This avoids the spring blocking the sliding of the device, allowing the device to be opened quickly and effectively.

[0027] The fixed box 4 has a limiting groove 15 inside. The inner wall of the limiting groove 15 is slidably connected to the sliding plate 12. The limiting groove 15 prevents the sliding plate 12 from shaking during the sliding process.

[0028] The fixed box 4 is fixedly connected to the sliding sleeve 13, and the sliding sleeve 13 is slidably connected to the sliding rod 6. The end of the sliding rod 6 located outside the fixed box 4 is circular, and the surface of the sliding rod 6 is fixedly connected to the surface of the sliding plate 12.

[0029] The equipment housing 1 is fixedly connected to a fixed shell 8. A baffle 9 is slidably connected to the inner wall of the fixed shell 8. A fixed block 11 is fixedly connected to the surface of the baffle 9, and the surface of the fixed block 11 is inclined. A sliding groove 7 is opened on the surface of the fixed shell 8, and the surface of the fixed block 11 is slidably connected to the inner wall of the sliding groove 7.

[0030] At the same time, when the door panel 2 is no longer pushed by air pressure, the door panel 2 automatically resets under the action of gravity. Meanwhile, the baffle 9 slides downward under the action of gravity, thereby driving the fixed block 11 to slide. The sliding of the fixed block 11 pushes the sliding rod 6 and the sliding plate 12, causing them to reset.

[0031] The baffle 9 is rotatably connected to a pulley 10. The surface of the pulley 10 is rotatably connected to the inside of the fixed shell 8. The pulley 10 reduces the resistance when the baffle 9 slides, making the device easier to open.

[0032] The sliding sleeve 13 has a ball bearing 16 embedded inside. The surface of the ball bearing 16 is slidably connected to the surface of the sliding rod 6. The ball bearing 16 reduces the resistance when the sliding rod 6 slides.

[0033] Rubber pads 14 are fixedly connected to both the inner wall of the fixed box 4 and the surface of the baffle 9. The rubber pads 14 further seal the device.

[0034] Working principle: When the air pressure is high, the gas will push the door panel 2, so that the door panel 2 rotates around the axis. The rotation of the door panel 2 will then squeeze the inclined surface of the sliding plate 12, so that the sliding plate 12 will slide inside the fixed box 4 under force. The sliding plate 12 no longer covers the mesh 5, and the air inside the fixed box 4 will enter the inside of the equipment shell 1 through the mesh 5.

[0035] When the sliding plate 12 slides, it pushes the sliding rod 6, which in turn presses the inclined surface of the fixed block 11 against the sliding plate 11. The fixed block 11 then moves the baffle 9, which no longer blocks the outlet. At the same time, the fixed block 11 slides into the groove 7, thus avoiding the need to control the opening of the device using springs and magnets. This avoids the need to overcome the resistance of springs and magnets when the device is not in use, allowing the device to be opened quickly.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mechanical automatic pressure relief device for fire fighting, comprising a device housing (1), characterized in that: The equipment housing (1) has an internal cavity (3), and a fixed box (4) is fixedly connected to the inner wall of the cavity (3). A door panel (2) is rotatably connected to the inside of the fixed box (4). A mesh (5) is opened on the surface of the fixed box (4), and the mesh (5) extends through the inside of the fixed box (4).

2. The automatic mechanical pressure relief device for fire fighting according to claim 1, characterized in that: The inner wall of the fixed box (4) is slidably connected to a sliding plate (12), and the surface of the sliding plate (12) is inclined.

3. The automatic mechanical pressure relief device for fire fighting according to claim 2, characterized in that: The fixed box (4) has a limiting groove (15) inside, and the inner wall of the limiting groove (15) is slidably connected to the sliding plate (12).

4. The automatic mechanical pressure relief device for fire fighting according to claim 3, characterized in that: The fixed box (4) is fixedly connected to a sliding sleeve (13), and the sliding sleeve (13) is slidably connected to a sliding rod (6).

5. The automatic mechanical pressure relief device for fire fighting according to claim 4, characterized in that: The surface of the sliding rod (6) is fixedly connected to the surface of the sliding plate (12), and the end of the sliding rod (6) located outside the fixed box (4) is circular.

6. The automatic mechanical pressure relief device for fire fighting according to claim 5, characterized in that: The device housing (1) is fixedly connected to a fixed shell (8) inside. A baffle (9) is slidably connected to the inner wall of the fixed shell (8). A fixed block (11) is fixedly connected to the surface of the baffle (9). The surface of the fixed block (11) is inclined. A groove (7) is opened on the surface of the fixed shell (8). The surface of the fixed block (11) is slidably connected to the inner wall of the groove (7).

7. The automatic mechanical pressure relief device for fire fighting according to claim 6, characterized in that: The baffle (9) is rotatably connected to a pulley (10), and the surface of the pulley (10) is rotatably connected to the interior of the fixed shell (8).

8. The automatic mechanical pressure relief device for fire fighting according to claim 7, characterized in that: The sliding sleeve (13) is inlaid with a ball (16), the surface of the ball (16) is slidably connected to the surface of the sliding rod (6), and the inner wall of the fixed box (4) and the surface of the baffle (9) are both fixedly connected with rubber pads (14).

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