Heat dissipation mechanism and civil air defense ventilation control box

Abstract

The utility model relates to the technical field of civil air defense equipment, and particularly discloses a heat dissipation mechanism and a civil air defense ventilation control box, the heat dissipation mechanism comprises an installation groove and a heat dissipation net which are arranged at the left end and the right end of a box body, the installation groove is convex, an elastic pad is fixedly installed at the inner end of the installation groove, a fixing frame is fixedly installed at the outer end of the heat dissipation net, and the fixing frame is convex. A fixing frame and a heat dissipation net are mounted in a mounting groove, a pull block is hooked by a finger and pulled inwards, the fixing frame moves in the mounting groove by extruding an elastic cushion, the circle center of a fixing hole and the circle center of a limiting cylinder are located on the same horizontal line, one end of a plug pin penetrates through the fixing hole, and after pulling force applied to the pull block is removed, the plug pin is inserted into the mounting groove. The limiting grooves are clamped with the side walls of the fixing plates, so that the heat dissipation net is fixed, when the heat dissipation net needs to be disassembled, the pull blocks are pulled towards the inner side again, then the plug pins are moved to be separated from the fixing plates, the heat dissipation net can be disassembled, cleaning of the heat dissipation net is facilitated, and meanwhile the effect that the heat dissipation net is convenient to disassemble and assemble is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense equipment, in particular to a heat dissipation mechanism and a civil air defense ventilation control box. Background Technique

[0002] The signal control box for civil air defense ventilation mode, also known as the AC box, is mainly installed in the duty room of the air defense basement. The supporting ventilation mode signal box is mainly set inside the first airtight door in the fan room, generator room, control room and the main wartime entrance. It is convenient for the personnel in the air defense basement to observe the internal air ventilation quality and plays a warning role for people.

[0003] Chinese Patent CN213880752U discloses a new type of signal control box for civil air defense ventilation mode, including a box body and a box door. An air inlet and an air outlet are arranged on the box body. A filter screen is arranged at the air inlet. A two-way fan is arranged inside the box body at the air inlet. A cleaning structure for cleaning the filter screen is arranged outside the box body. When the filter screen is blocked, the filter screen is cleaned through the cleaning structure, and at the same time, the dust cleaned off is blown away from the filter screen by the fan. It can be automatically cleaned or manually controlled for cleaning. It well solves the problem that the filter screen of the control box is prone to blockage during long-term operation in the underground engineering shelter, resulting in poor heat dissipation effect.

[0004] However, when the above patent cleans the filter screen, the dust on the filter screen easily falls into the interior of the control box, and it is inconvenient to quickly disassemble and assemble the filter screen. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat dissipation mechanism and a civil air defense ventilation control box to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A heat dissipation mechanism, including: installation grooves and heat dissipation nets opened at the left and right ends of the box body. The installation grooves are convex. Elastic pads are fixedly installed at the inner ends of the installation grooves. The outer end of the heat dissipation net is fixedly installed with a fixing frame. The fixing frame is convex. The heat dissipation net and the fixing frame are both inserted into the installation groove. The inner end of the fixing frame contacts the elastic pad. The fixing frame is fixed in the installation groove through fixing components;

[0007] The inner ends of both installation grooves are rotatably connected with a rotating shaft through an installation frame, and a fan blade is fixedly installed at one end of the rotating shaft.

[0008] Preferably, the fixing component includes fixing plates fixedly installed on the four sides of the inner end of the fixing frame and limiting cylinders fixedly installed on the four sides of the inner port of the installation groove. Fixing holes are opened at the outer ends of the fixing plates, and a pulling block is fixedly installed on one side of the inner end of the fixing plate.

[0009] Preferably, a bolt is slidably inserted into each of the limiting cylinders, and a limiting groove is formed at one end of the bolt passing through the limiting cylinder.

[0010] Preferably, by pressing the elastic pad with the fixed frame, the centers of the fixing holes and the limiting cylinders are located on the same horizontal line.

[0011] Preferably, one end of the bolt passes through the fixing hole, and the limiting groove is clamped with the side wall of the fixing plate.

[0012] Preferably, the mounting bracket is fixed on the inner wall of the box body. The rotating shaft is rotatably connected to the mounting bracket through a bearing, and a first pulley is fixedly installed at the other end of the rotating shaft.

[0013] Preferably, a rotating rod is rotatably connected to the bottom end of the box body. Second pulleys are fixedly installed at the left and right ends of the rotating rod, and belts are drivingly connected to the outer walls of the second pulley and the first pulley.

[0014] Preferably, a motor is fixedly installed at the bottom end of the box body. Gears are fixedly installed at the output end of the motor and the outer wall of the rotating rod, and the outer walls of the two gears are meshed and connected.

[0015] A civil air defense ventilation control box includes the above-mentioned heat dissipation mechanism.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] By installing the fixed frame and the heat dissipation net in the installation groove, hooking the pull block with a finger and pulling it inward, the fixed frame moves in the installation groove by pressing the elastic pad, so that the centers of the fixing holes and the limiting cylinders are located on the same horizontal line. One end of the bolt passes through the fixing hole. After removing the pulling force applied to the pull block, the limiting groove is clamped with the side wall of the fixing plate, thereby fixing the heat dissipation net. When the heat dissipation net needs to be disassembled, pull the pull block inward again, and then move the bolt to separate from the fixing plate, and the heat dissipation net can be removed, which is convenient for cleaning and also facilitates the disassembly and assembly of the heat dissipation net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the connection between the box body and the heat dissipation net of the present utility model;

[0020] Figure 3 is a schematic diagram of the connection between the fixed frame and the heat dissipation net of the present utility model;

[0021] Figure 4 is the present utility model Figure 2 Enlarged view of the structure of area A;

[0022] Figure 5This is the front view of the box body of the present utility model.

[0023] In the figure: 1, box body; 2, installation groove; 3, elastic pad; 4, fixing frame; 5, heat dissipation net; 6, fixing plate; 7, pulling block; 8, fixing hole; 9, limiting cylinder; 10, bolt; 11, limiting groove; 12, mounting bracket; 13, rotating shaft; 14, fan blade; 15, pulley one; 16, rotating rod; 17, pulley two; 18, belt; 19, motor; 20, gear. Specific implementation manners

[0024] In order to clearly and completely describe the purpose, technical solution and advantages of the present utility model, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution: a heat dissipation mechanism, including: installation grooves 2 and heat dissipation nets 5 opened at the left and right ends of the box body 1, the installation grooves 2 are convex and communicate with the box body 1, an elastic pad 3 is fixedly installed at the inner end of the installation groove 2, the elastic pad 3 is in a mouth shape, the elastic pad 3 is an elastic rubber pad, a fixing frame 4 is fixedly installed at the outer end of the heat dissipation net 5, the fixing frame 4 is convex, both the heat dissipation net 5 and the fixing frame 4 are inserted into the installation groove 2, the inner end of the fixing frame 4 contacts the elastic pad 3, and the fixing frame 4 and the heat dissipation net 5 move inward in the installation groove 2 by squeezing the elastic pad 3, and the fixing frame 4 is fixed in the installation groove 2 through fixing components;

[0026] The fixing components include a fixing plate 6 fixedly installed on the four sides of the inner end of the fixing frame 4 and a limiting cylinder 9 fixedly installed on the four sides of the inner end of the mounting groove 2. The outer end of the fixing plate 6 is provided with a fixing hole 8, and a pull block 7 is fixedly installed on one side of the inner end of the fixing plate 6. When the fixing frame 4 is installed in the mounting groove 2, the outer end of the fixing plate 6 is flush with the inner end of the mounting groove 2. A latch 10 is slidably inserted in each limiting cylinder 9. One end of the latch 10 passes through the limiting cylinder 9 and is provided with a limiting groove 11. By hooking the pull block 7 with a finger and pulling it inward, the fixing frame 4 By squeezing the elastic pad 3 to move in the installation groove 2, the center of the fixing hole 8 and the center of the limiting cylinder 9 are located on the same horizontal line, and one end of the pin 10 passes through the fixing hole 8. After the pulling force applied to the pull block 7 is removed, the limiting groove 11 and the side wall of the fixing plate 6 are engaged, thereby fixing the heat dissipation net 5. When the heat dissipation net 5 needs to be disassembled, the pull block 7 is pulled inward again, and then the moving pin 10 and the fixing plate 6 are separated, so that the heat dissipation net 5 can be removed, which is convenient for cleaning and also makes it convenient to disassemble and assemble the heat dissipation net 5.

[0027] The inner ends of the two mounting grooves 2 are rotatably connected to a rotating shaft 13 through a mounting frame 12, and a fan blade 14 is fixedly installed at one end of the rotating shaft 13. The air outlet directions of the two fan blades are the same, one blows air into the interior of the box body 1, and the other blows the heat in the box body 1 out of the outer end of the box body 1, thereby accelerating the air flow speed inside the civil air defense ventilation control box and dissipating the heat inside.

[0028] The mounting frame 12 is fixed on the inner wall of the box body 1, and the rotating shaft 13 is rotatably connected to the mounting frame 12 through a bearing. A pulley 15 is fixedly installed on the other end of the rotating shaft 13, and a rotating rod 16 is rotatably connected to the bottom end of the box body 1. Pulley 2 17 is fixedly installed on the left and right ends of the rotating rod 16, and belts 18 are transmission-connected on the outer walls of pulley 2 17 and pulley 1 15. A motor 19 is fixedly installed on the bottom end of the box body 1, and a gear 20 is fixedly installed on the output end of the motor 19 and the outer wall of the rotating rod 16. The outer walls of the two gears 20 are meshingly connected, and the motor 19 drives the gear 20 to rotate. When the gear 20 rotates, it drives the rotating rod 16 to rotate, and the rotating rod 16 drives the pulley 2 17 to drive the pulley 15 to rotate through the belt 18. The pulley 15 drives the rotating shaft 13 and the fan blade 14 to rotate, thereby simultaneously supplying air to the civil air defense ventilation control box and conveying the air inside the civil air defense ventilation control box out of the box.

[0029] A civil air defense ventilation control box comprises the above-mentioned heat dissipation mechanism.

[0030] In actual use, the fixing frame 4 and the heat dissipation net 5 are installed in the installation groove 2. By hooking the pulling block 7 with a finger and pulling it inward, the fixing frame 4 moves in the installation groove 2 by squeezing the elastic pad 3, so that the centers of the fixing holes 8 and the limiting cylinder 9 are on the same horizontal line. One end of the bolt 10 passes through the fixing hole 8. After removing the pulling force applied to the pulling block 7, the limiting groove 11 is clamped with the side wall of the fixing plate 6, thereby fixing the heat dissipation net 5. When the heat dissipation net 5 needs to be disassembled, the pulling block 7 is pulled inward again, and then the bolt 10 is moved to separate from the fixing plate 6, and the heat dissipation net 5 can be removed, which is convenient for cleaning it. At the same time, it also plays a role in facilitating the disassembly and assembly of the heat dissipation net 5. The motor 19 drives the gear 20 to rotate. When the gear 20 rotates, it drives the rotating rod 16 to rotate. The rotating rod 16 drives the second pulley 17 to drive the first pulley 15 to rotate through the belt 18. The first pulley 15 drives the rotating shaft 13 and the fan blade 14 to rotate, realizing the simultaneous supply of air to the civil air defense ventilation control box and the delivery of the air inside the civil air defense ventilation control box out of the box, accelerating the air flow speed inside the civil air defense ventilation control box and dissipating heat inside.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation mechanism, comprising: The box body (1) has a mounting groove (2) and a heat dissipation net (5) at both left and right ends, the mounting groove (2) being convex, and an elastic pad (3) being fixedly mounted at the inner end of the mounting groove (2), characterized in that a fixing frame (4) is fixedly mounted at the outer end of the heat dissipation net (5), the fixing frame (4) being convex, the heat dissipation net (5) and the fixing frame (4) being both inserted into the mounting groove (2), the inner end of the fixing frame (4) being in contact with the elastic pad (3), and the fixing frame (4) being fixed in the mounting groove (2) by a fixing component; The inner ends of the two mounting grooves (2) are rotatably connected to a rotating shaft (13) via a mounting frame (12), and a fan blade (14) is fixedly mounted on one end of the rotating shaft (13).

2. A heat dissipation mechanism according to claim 1, characterized in that: The fixing component comprises a fixing plate (6) fixedly mounted on four sides of the inner end of the fixing frame (4) and a limiting cylinder (9) fixedly mounted on four sides of the inner end of the mounting groove (2); a fixing hole (8) is provided at the outer end of the fixing plate (6); and a pulling block (7) is fixedly mounted on one side of the inner end of the fixing plate (6).

3. A heat dissipation mechanism according to claim 2, characterized in that: A latch pin (10) is slidably inserted into each of the limiting cylinders (9), and one end of the latch pin (10) passes through the limiting cylinder (9) and is provided with a limiting groove (11).

4. A heat dissipation mechanism according to claim 3, characterized in that: The fixing frame (4) squeezes the elastic pad (3) so that the center of the fixing hole (8) and the center of the limiting cylinder (9) are located on the same horizontal line.

5. A heat dissipation mechanism according to claim 4, characterized in that: One end of the latch pin (10) passes through the fixing hole (8), and the limiting groove (11) is clamped with the side wall of the fixing plate (6).

6. A heat dissipation mechanism according to claim 1, characterized in that: The mounting frame (12) is fixed on the inner wall of the box body (1), the rotating shaft (13) is rotatably connected to the mounting frame (12) through a bearing, and a pulley (15) is fixedly mounted on the other end of the rotating shaft (13).

7. A heat dissipation mechanism according to claim 6, characterized in that: The bottom end of the box body (1) is rotatably connected to a rotating rod (16), and the left and right ends of the rotating rod (16) are fixedly installed with a second pulley (17), and the outer walls of the second pulley (17) and the first pulley (15) are both transmission-connected with a belt (18).

8. A heat dissipation mechanism according to claim 7, characterized in that: A motor (19) is fixedly mounted on the bottom end of the box body (1), and gears (20) are fixedly mounted on the output end of the motor (19) and the outer wall of the rotating rod (16), and the outer walls of the two gears (20) are meshed and connected.

9. A civil air defense ventilation control box, characterized in that: The heat dissipation mechanism comprises any one of claims 1 to 8.

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