Emergency ventilation structure

Abstract

The utility model relates to the technical field of ventilation structures, in particular to an emergency ventilation structure which facilitates heat dissipation, improves working efficiency and enhances practicability. Comprising a box body, a working cavity is formed in the box body, an access hole is formed in the front end of the working cavity in a communicating mode, and opening and closing doors are hinged to the two ends of the access hole; first rotating rods are rotatably installed in the two sets of first through holes, a first bevel gear is fixedly installed at the output end of the motor, second bevel gears are fixedly installed at the inner ends of the two sets of first rotating rods, the two sets of second bevel gears are in meshing transmission with the first bevel gear, and two sets of second through holes are formed in the top of the working cavity in a communicating mode; second rotating rods are rotationally installed in the two sets of second through holes, third bevel gears are fixedly installed at the outer ends of the two sets of first rotating rods, and fourth bevel gears are fixedly installed at the tops of the two sets of second rotating rods.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation structures, and in particular to an emergency ventilation structure. Background Technology

[0002] An inverter is a type of transformer that, like a converter, performs a voltage inversion process. Its function is to convert direct current (DC) energy (from batteries or storage batteries) into alternating current (AC) (typically 220V, 50Hz sine wave). It consists of an inverter bridge, control logic, and filter circuits, and is widely used in air conditioners, home theaters, electric grinders, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. In foreign countries, due to the high rate of car ownership, inverters can be used to connect batteries to power electrical appliances and various tools when working or traveling. Ordinary inverters have inadequate ventilation and heat dissipation devices, which greatly affects the power generation of the inverter. For example, Chinese utility model patent publication number CN205792266U discloses a ventilation device for a photovoltaic power station inverter.

[0003] However, it was found in use that the above-mentioned existing technical solution has a cooling fan on the left and an exhaust vent on the right. However, the exhaust vent is not covered, which makes it easy for dust to enter. In winter, when the temperature is low and heat dissipation is not required, it is easy to cause internal pollution, which reduces work efficiency and thus results in poor practicality. Utility Model Content

[0004] Technical problems to be solved

[0005] To solve the above-mentioned technical problems, this utility model provides an emergency ventilation structure that facilitates heat dissipation, improves work efficiency, and enhances practicality.

[0006] Technical solution

[0007] To achieve the above objectives, this application provides the following technical solution: an emergency ventilation structure, including a housing, a working chamber inside the housing, an inlet / outlet hole at the front end of the working chamber, and hinged doors at both ends of the inlet / outlet hole; the ventilation mechanism includes a motor, which is fixedly mounted on the top of the housing; two sets of fixing blocks are fixedly mounted on the top of the housing, each of the two sets of fixing blocks having a first through hole at one end; a first rotating rod is rotatably mounted in each of the two sets of first through holes; a first bevel gear is fixedly mounted on the output end of the motor; and a second bevel gear is fixedly mounted on the inner ends of each of the two sets of first rotating rods; both sets of second bevel gears mesh with the first bevel gear for transmission; and two sets of second bevel gears are connected to the top of the working chamber. The working chamber has two sets of through holes, each containing a second rotating rod. A third bevel gear is fixedly installed at the outer end of each set of first rotating rods. A fourth bevel gear is fixedly installed at the top of each set of second rotating rods. The fourth bevel gears mesh with the third bevel gears respectively. A lifting cylinder is screwed onto the bottom of each set of second rotating rods. Support plates are fixedly installed on the inner walls of both sides of the working chamber. A third through hole is opened at the top of each support plate. The lifting cylinders slide through the third through holes. Ventilation holes are connected at both ends of the working chamber. A baffle is hinged to the top of each ventilation hole. A connecting rod is hinged to the bottom of each lifting cylinder. The outer ends of the connecting rods are hinged to the inner ends of the baffles respectively.

[0008] By adopting the above technical solution, when the inverter operates and causes the temperature inside the cabinet to rise, the motor is started. The motor drives the two sets of first rotating rods to rotate synchronously through the meshing of the first bevel gear and the two sets of second bevel gears. The two sets of first rotating rods drive the two sets of second rotating rods to rotate through the meshing of the two sets of third bevel gears and the two sets of fourth bevel gears. This causes the two sets of lifting cylinders to drive the two sets of connecting rods to descend. When the two sets of connecting rods descend, they will push the two sets of baffles outward, allowing the heat inside the cabinet to dissipate outward. This process facilitates heat dissipation, improves working efficiency, and thus enhances practicality.

[0009] Preferably, the dustproof mechanism includes two sets of dustproof mesh cages, each set of dustproof mesh cages has two sets of plugs fixedly installed at its inner end, and each end of the box has two sets of slots, with multiple sets of plugs respectively engaging with multiple sets of slots.

[0010] By adopting the above technical solution, the dustproof mesh cage can prevent external impurities from entering the enclosure and affecting the inverter's operation when the baffle is opened for ventilation, thereby enhancing safety.

[0011] Preferably, both sets of dustproof net cages are fixedly equipped with handles at their outer ends.

[0012] By adopting the above technical solution, the dustproof net cage can be easily removed for cleaning by holding the handle, thereby enhancing the ease of use.

[0013] Furthermore, limit rings are fixedly installed on the outer walls of both sets of lifting cylinders.

[0014] By adopting the above technical solution, the limiting ring can prevent the lifting cylinder from detaching from the support plate during lifting, thereby enhancing its practicality.

[0015] Furthermore, a protective cover is fixedly installed on the top of the housing, and the motor is located inside the protective cover.

[0016] By adopting the above technical solution, the protective cover can prevent the motor from being affected by external factors during operation, thereby enhancing safety.

[0017] Beneficial effects

[0018] Compared with the prior art, this application provides an emergency ventilation structure with the following advantages:

[0019] When the inverter operates, causing the temperature inside the enclosure to rise, the motor is started. The motor drives the two sets of first rotating rods to rotate synchronously through the meshing of the first bevel gear and the two sets of second bevel gears. The two sets of first rotating rods drive the two sets of second rotating rods to rotate through the meshing of the two sets of third bevel gears and the two sets of fourth bevel gears. This causes the two sets of lifting cylinders to drive the two sets of connecting rods to descend. When the two sets of connecting rods descend, they push the two sets of baffles outward, allowing the heat inside the enclosure to dissipate outward. This process facilitates heat dissipation, improves working efficiency, and thus enhances practicality. Attached Figure Description

[0020] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 2 This is the utility model Figure 1 A magnified structural diagram of A in the middle;

[0022] Figure 3 This is a front view schematic diagram of the connection between the dustproof mesh cage and the plug block of this utility model;

[0023] Figure 4 This is a front view structural diagram of the connection between the housing and the door of this utility model.

[0024] The following are labels in the attached diagram: 1. Box body; 2. Opening and closing door; 3. Motor; 4. Fixing block; 5. First rotating rod; 6. First bevel gear; 7. Second bevel gear; 8. Second rotating rod; 9. Third bevel gear; 10. Fourth bevel gear; 11. Lifting cylinder; 12. Support plate; 13. Baffle; 14. Connecting rod; 15. Dustproof net cage; 16. Insert block; 17. Handle; 18. Limiting ring; 19. Protective cover. Detailed Implementation

[0025] Example

[0026] Please see Figure 1-4The housing 1 contains a working chamber with an inlet / outlet opening at the front. Both ends of the inlet / outlet opening are hinged to a switch door 2. A motor 3 is fixedly mounted on the top of the housing 1. Two sets of fixing blocks 4 are fixedly mounted on the top of the housing 1. Each set of fixing blocks 4 has a first through hole at one end. A first rotating rod 5 is rotatably mounted in each of the first through holes. A first bevel gear 6 is fixedly mounted on the output end of the motor 3. A second bevel gear 7 is fixedly mounted on the inner end of each of the two sets of first rotating rods 5, and both sets of second bevel gears 7 mesh with the first bevel gear 6 for transmission. The top of the working chamber has two sets of second through holes, each containing a second rotating rod 8. A third bevel gear 9 is fixedly mounted on the outer end of each of the two sets of first rotating rods 5. A fourth bevel gear 10 is fixedly mounted on the top of each of the two sets of second rotating rods 8, and both sets of fourth bevel gears 10 mesh with the two sets of third bevel gears 9 respectively. When the inverter operates, causing the temperature inside the housing 1 to rise, the motor 3 is started. The motor 3, through the first bevel gear 6, meshes with the two bevel gears 9. The meshing of the second bevel gear 7 drives the two sets of first rotating rods 5 to rotate synchronously. The two sets of first rotating rods 5 drive the two sets of second rotating rods 8 to rotate through the meshing of the two sets of third bevel gears 9 and the two sets of fourth bevel gears 10. The bottom of each set of second rotating rods 8 is screwed with a lifting cylinder 11. Support plates 12 are fixedly installed on the inner walls of both sides of the working chamber. The top of each set of support plates 12 is provided with a third through hole. The two sets of lifting cylinders 11 slide through the two sets of third through holes respectively. Ventilation holes are provided at both ends of the working chamber. Both sets of ventilation holes are hinged to the top of baffles 13, and both sets of lifting cylinders 11 are hinged to the bottom of connecting rods 14. The outer ends of the two sets of connecting rods 14 are respectively hinged to the inner ends of the two sets of baffles 13. The two sets of second rotating rods 8 rotate, causing the two sets of lifting cylinders 11 to drive the two sets of connecting rods 14 to descend. When the two sets of connecting rods 14 descend, they will push the two sets of baffles 13 outward, so that the heat inside the box 1 can be dissipated outward. This process facilitates heat dissipation, improves work efficiency, and thus enhances practicality.

[0027] Please see Figure 1 , Figure 3 and Figure 4 The dustproof mechanism includes two sets of dustproof mesh cages 15. Two sets of plugs 16 are fixedly installed at the inner end of each set of dustproof mesh cages 15. Two sets of slots are opened at both ends of the housing 1. Multiple sets of plugs 16 are respectively engaged with multiple sets of slots. Handles 17 are fixedly installed at the outer end of each set of dustproof mesh cages 15. When the baffle 13 is opened for ventilation, the dustproof mesh cages 15 can prevent external impurities from entering the housing 1 and affecting the operation of the inverter. By holding the handles 17, the dustproof mesh cages 15 can be easily removed for cleaning, thereby enhancing the ease of use.

[0028] Please see Figure 1 Limiting rings 18 are fixedly installed on the outer walls of both sets of lifting cylinders 11. The limiting rings 18 can prevent the lifting cylinders 11 from detaching from the support plate 12 when lifting, thereby enhancing practicality.

[0029] Please see Figure 1 and Figure 4 A protective cover 19 is fixedly installed on the top of the housing 1, and the motor 3 is located inside the protective cover 19. The protective cover 19 can prevent the motor 3 from being affected by the outside world when it is working, thereby enhancing safety.

[0030] This utility model discloses an emergency ventilation structure. During operation, when the inverter causes the temperature inside the housing 1 to rise, the motor 3 is activated. This motor 3 is a commercially available device known to those skilled in the art; we are simply using it without making any structural or functional improvements, which will not be detailed here. The motor 3 is equipped with a matching control switch, the installation position of which is selected according to actual usage requirements for easy operation. The motor 3 drives two... The first rotating rod 5 of the two sets rotates synchronously. The two sets of first rotating rods 5 drive the two sets of second rotating rods 8 to rotate through the meshing of the two sets of third bevel gears 9 and the two sets of fourth bevel gears 10. This causes the two sets of lifting cylinders 11 to drive the two sets of connecting rods 14 to descend. When the two sets of connecting rods 14 descend, they will push the two sets of baffles 13 outward, allowing the heat inside the housing 1 to dissipate outward. When the baffles 13 are open for ventilation, the dustproof mesh cage 15 can prevent external impurities from entering the housing 1 and affecting the operation of the inverter. The dustproof mesh cage 15 can be easily removed for cleaning by holding the handle 17. This process facilitates heat dissipation.

Claims

1. An emergency ventilation structure, comprising a housing, a working chamber within the housing, an inlet / outlet opening at the front end of the working chamber, and hinged doors at both ends of the inlet / outlet opening, characterized in that... It also includes: The ventilation mechanism includes a motor, which is fixedly mounted on the top of the housing. Two sets of fixing blocks are fixedly mounted on the top of the housing. Each of the two sets of fixing blocks has a first through hole at one end. A first rotating rod is rotatably mounted within each of the two sets of first through holes. A first bevel gear is fixedly mounted on the output end of the motor. Second bevel gears are fixedly mounted on the inner ends of each of the two sets of first rotating rods, and both sets of second bevel gears mesh with the first bevel gears for transmission. The top of the working chamber has two sets of second through holes, each containing a second rotating rod rotatably mounted. The outer ends of both sets of first rotating rods are fixedly mounted... A third bevel gear is fixedly installed on the top of each of the two sets of second rotating rods. A fourth bevel gear is fixedly installed on the top of each of the two sets of fourth bevel gears, which mesh with the two sets of third bevel gears respectively. A lifting cylinder is screwed onto the bottom of each of the two sets of second rotating rods. Support plates are fixedly installed on the inner walls of both sides of the working chamber. A third through hole is opened on the top of each of the two sets of support plates. The two sets of lifting cylinders slide through the two sets of third through holes respectively. Ventilation holes are opened at both ends of the working chamber. A baffle is hinged to the top of each of the two sets of ventilation holes. A connecting rod is hinged to the bottom of each of the two sets of lifting cylinders. The outer ends of the two sets of connecting rods are hinged to the inner ends of the two sets of baffles respectively. A dustproof mechanism is installed on the housing to prevent external debris from entering the housing.

2. The emergency ventilation structure as described in claim 1, characterized in that: The dustproof mechanism includes two sets of dustproof net cages. Two sets of plugs are fixedly installed at the inner ends of each set of dustproof net cages. Two sets of slots are opened at both ends of the box body. Multiple sets of plugs are respectively engaged with multiple sets of slots.

3. An emergency ventilation structure as described in claim 2, characterized in that: Both sets of dustproof mesh cages have handles fixedly installed at their outer ends.

4. An emergency ventilation structure as described in claim 1, characterized in that: Limiting rings are fixedly installed on the outer walls of both sets of lifting cylinders.

5. An emergency ventilation structure as described in claim 1, characterized in that: A protective cover is fixedly installed on the top of the housing, and the motor is located inside the protective cover.

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