An environmental test chamber gas exchange device

Abstract

This utility model discloses an environmental test chamber ventilation device, relating to the field of automotive technology. It includes a chamber body with moving mechanisms on both sides extending into the interior. An exhaust pipe is located at the top of the chamber. This environmental test chamber ventilation device reduces the distance between two sealing plates by rotating a cylinder. A push rod moves with the sealing plates, and just before the two sealing plates come into contact, the push rod contacts a circular block, bringing the two sealing plates together. This allows hydrogen gas to be positioned above the sealing plates, and the movement of the vertical and moving plates further propels the hydrogen gas. The exhaust pipe draws and releases the hydrogen gas, shortening the time for harmful gas discharge and reducing safety risks such as explosions. The sealing plates also provide separation, preventing excessive drawing and reducing the emission of other gases with the hydrogen, thus minimizing interference with the experiment.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically to an environmental test chamber ventilation device. Background Technology

[0002] In recent years, the development of new energy vehicles has been rapid, and more and more people are choosing electric vehicles as an environmentally friendly mode of transportation. Many automakers also consider it the future direction of automotive development and have invested heavily in research and development. Currently, the mainstream new energy vehicles are electric vehicles and hydrogen fuel cell vehicles.

[0003] A search of patent application number CN202221034046.1 reveals an environmental test chamber ventilation system for fuel cell vehicle environmental test chambers. This system uses first and second ventilation units to discharge harmful gases that need to be released during testing in real time, preventing the accumulation of harmful gases and improving the safety of the test chamber. During vehicle development, functional tests are conducted under various climatic environments (such as high and low temperatures), requiring a relatively closed and independent environmental simulation test chamber. When leaked hydrogen accumulates at the top of the environmental chamber, excessive pumping can release other gases along with the hydrogen, affecting the experiment. Furthermore, it may not accelerate hydrogen emission, posing a safety risk. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an environmental test chamber ventilation device. The rotation of a rotating cylinder allows two sealing plates to move simultaneously, reducing the distance between them. A push rod moves along with the sealing plates, and just before they come into contact, the push rod contacts a circular block, allowing a moving plate and a vertical plate to automatically move along an inclined groove, bringing the two sealing plates together. This effectively separates the interior of the chamber, placing hydrogen gas above the sealing plates. The movement of the vertical and moving plates propels the hydrogen gas, and a fan at the outlet pipe draws and releases the hydrogen gas. Because the fan can be connected to external purification equipment, environmental pollution is prevented, harmful gas emission time is shortened, and the hydrogen concentration at the top of the chamber is reduced more quickly, minimizing safety risks such as explosions. The sealing plates also prevent excessive drawing, reducing the emission of other gases along with the hydrogen and minimizing impact on experiments. This addresses the need for a relatively closed and independent environmental simulation laboratory during vehicle development, where various climatic environments (such as high and low temperatures) are required for functional testing. When leaked hydrogen accumulates at the top of the environmental chamber, excessive pumping during hydrogen release could cause other gases to be released along with the hydrogen, affecting the experiment. Furthermore, it would not accelerate the release of hydrogen, posing a safety risk.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an environmental test chamber ventilation device, including a chamber body, with moving mechanisms provided on both sides of the chamber body, the moving mechanisms extending into the interior of the chamber body, an air outlet pipe provided at the top of the chamber body, and an air inlet pipe provided at the bottom of the chamber body, with an air pump provided inside both the air inlet pipe and the air outlet pipe, and a rotating cylinder provided on the front of the top of the chamber body.

[0006] The motion mechanism includes two sealing plates that are in contact with the cabin body. The inner wall of the top of the cabin body is provided with an inclined groove, and a sliding block is provided inside the inclined groove and is slidably connected to the inclined groove. A motion plate is provided on the top of the sealing plate, and a vertical plate is provided on the side of the top of the motion plate away from the air outlet pipe. Both the vertical plate and the motion plate are in contact with the inner wall of the cabin body, and the vertical plate and the motion plate are slidably connected. A push rod is fixedly provided on the end of the sealing plate away from the vertical plate, and the cross-sectional shape of the push rod is L-shaped. The sliding block is fixedly connected to the vertical plate.

[0007] Preferably, the air pump is provided with a filter tube at the top, the rotating cylinder is provided with threaded rods at both ends, and there are two threaded rods. A fan is provided on one side of the air outlet pipe.

[0008] Preferably, the threads on the two threaded rod surfaces are arranged in opposite directions, the threaded rods are threadedly connected to the rotating cylinder, and a blocking plate is provided on the side of the cabin away from the air intake pipe, and one side of the blocking plate is fixedly connected to the cabin by screws.

[0009] Preferably, the other side of the blocking plate is connected to the cabin body via a hinge, and an inlet is provided on the surface of the cabin body near the blocking plate, and the area of ​​the blocking plate is larger than the area of ​​the inlet.

[0010] Preferably, holes are provided on both sides of the cabin, and circular blocks are provided inside the holes, with the circular blocks slidably connected to the holes.

[0011] Preferably, the top ends of the circular block and the push rod are horizontally collinear, a mounting block is provided on one side of the circular block, a groove is provided on the top of the mounting block, and a telescopic rod is provided above the groove.

[0012] Preferably, the mounting block is fixedly connected to the motion plate, a connecting spring is arranged around the outer side of the telescopic rod, and a ball is provided at the bottom end of the telescopic rod.

[0013] Preferably, a sealing gasket is provided at the end of the sealing plate away from the push rod, and a protrusion is provided at the top of the end of the sealing plate near the sealing gasket.

[0014] Beneficial effects

[0015] This invention provides a ventilation device for an environmental test chamber. Compared with the prior art, it has the following advantages:

[0016] 1. The ventilation device of this environmental test chamber uses the rotation of a rotating cylinder to move two sealing plates simultaneously, reducing the distance between them. A push rod moves along with the sealing plates, and just before they come into contact, the push rod contacts a circular block, allowing the moving plate and vertical plate to automatically move along an inclined slide, bringing the two sealing plates together. This effectively separates the interior of the chamber, placing hydrogen gas above the sealing plates. The movement of the vertical and moving plates propels the hydrogen gas, and a fan at the outlet pipe draws and releases the hydrogen gas. Because the fan can be connected to external purification equipment, it prevents environmental pollution, shortens the time for harmful gas discharge, and more quickly reduces the hydrogen concentration at the top of the chamber, minimizing safety risks such as explosions. The sealing plates also prevent excessive drawing, reducing the emission of other gases along with the hydrogen and minimizing impact on the experiment.

[0017] 2. The ventilation device of this environmental test chamber, by increasing the distance between the two sealing plates, allows the moving plate and the vertical plate to move, and allows the mounting block to enter the hole. Subsequently, the surface of the bottom of the sphere merges with the groove, which can prevent the mounting block from moving, and also prevent the moving plate and the vertical plate from moving. This prevents the moving plate and the vertical plate from moving with the sealing plate immediately when the sealing plate moves. Attached Figure Description

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

[0019] Figure 2 This is a perspective view of the motion mechanism of this utility model;

[0020] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged view of part B in the image;

[0022] Figure 5 For the present utility model Figure 2 Enlarged view of part A in the image;

[0023] Figure 6 This is a bottom view of the sliding block and the air outlet pipe of this utility model.

[0024] In the diagram: 1. Cabin; 2. Motion mechanism; 201. Sealing plate; 202. Inclined slide; 203. Sliding block; 204. Motion plate; 205. Vertical plate; 206. Push rod; 207. Hole; 208. Circular block; 209. Mounting block; 210. Telescopic rod; 211. Sphere; 212. Protrusion; 3. Air outlet pipe; 4. Air inlet pipe; 5. Rotating cylinder; 6. Threaded rod; 7. Blocking plate; 8. Air pump; 9. Fan. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-3 6. This utility model provides a technical solution: an environmental test chamber ventilation device, including a chamber body 1, with motion mechanisms 2 on both sides of the chamber body 1, the motion mechanisms 2 extending into the interior of the chamber body 1, an air outlet pipe 3 on the top of the chamber body 1, and an air inlet pipe 4 on the bottom of the chamber body 1, with an air pump 8 installed inside both the air inlet pipe 4 and the air outlet pipe 3, and a rotating cylinder 5 on the front of the top of the chamber body 1.

[0027] The motion mechanism 2 includes two sealing plates 201. The two sealing plates 201 are in contact with the cabin 1. An inclined groove 202 is provided on the inner wall of the top of the cabin 1. A sliding block 203 is provided inside the inclined groove 202 and is slidably connected to the inclined groove 202. A motion plate 204 is provided on the top of the sealing plate 201. A vertical plate 205 is provided on the side of the top of the motion plate 204 away from the air outlet pipe 3. Both the vertical plate 205 and the motion plate 204 are in contact with the inner wall of the cabin 1 and are slidably connected to each other. A push rod 206 is fixedly provided on the end of the sealing plate 201 away from the vertical plate 205. The cross-sectional shape of the push rod 206 is L-shaped. The sliding block 203 is fixedly connected to the vertical plate 205.

[0028] The air pump 8 is equipped with a filter tube at its top, and two threaded rods 6 are provided at both ends of the rotating cylinder 5. A fan 9 is provided on one side of the air outlet pipe 3. The threads on the surfaces of the two threaded rods 6 are arranged in opposite directions. The threaded rods 6 are threadedly connected to the rotating cylinder 5. The rotation of the rotating cylinder 5 can increase or decrease the distance between the two threaded rods 6, allowing them to move simultaneously and improving work efficiency.

[0029] A blocking plate 7 is provided on the side of the cabin 1 away from the air intake pipe 4. One side of the blocking plate 7 is fixedly connected to the cabin 1 by screws, and the other side of the blocking plate 7 is connected to the cabin 1 by hinges. An inlet is provided on the surface of the cabin 1 near the blocking plate 7. The area of ​​the blocking plate 7 is larger than the area of ​​the inlet. The blocking plate 7 can be rotated by the hinge to open the blocking plate 7, so that the car can enter the cabin 1. Subsequently, the blocking plate 7 is fixed by screws. The area of ​​the blocking plate 7 is larger than the area of ​​the inlet, so that the inlet can be completely blocked to prevent gas leakage inside the cabin 1.

[0030] Please see Figure 3-5 Both sides of the cabin 1 are provided with holes 207. A circular block 208 is installed inside each hole 207, and the circular block 208 is slidably connected to the hole 207. The top of the circular block 208 and the push rod 206 are horizontally collinear. A mounting block 209 is provided on one side of the circular block 208, and a groove is provided on the top of the mounting block 209. A telescopic rod 210 is provided above the groove. The mounting block 209 is fixedly connected to the moving plate 204. A connecting spring is arranged around the outside of the telescopic rod 210, and a ball 211 is provided at the bottom of the telescopic rod 210. A sealing gasket is provided at the end of the sealing plate 201 away from the push rod 206, and a protrusion 212 is provided at the top of the end of the sealing plate 201 near the sealing gasket. When the distance between the two sealing plates 201 is increased, the protrusion 212 can contact the moving plate 204, pushing the moving plate 204 to move, and causing the vertical plate 205 above to move simultaneously. The mounting block 209 can move along the inclined groove 202, and the movement of the moving plate 204 causes the mounting block 209 to move simultaneously, allowing the mounting block 209 to enter the hole 207 and contact the ball 211 under the telescopic rod 210. The ball 211 moves upward, reducing the length of the telescopic rod 210 and compressing the connecting spring around the telescopic rod 210, ensuring that the mounting block 209 continues to move. When the mounting block 209 moves, the groove on it aligns vertically with the ball 211. After alignment, the connecting spring automatically moves the ball 211 downward, causing the bottom surface of the ball 211 to merge with the groove, preventing the mounting block 209 from moving, and also preventing the moving plate 204 and the vertical plate 205 from moving, thus preventing the moving plate 204 and the vertical plate 205 from moving with the sealing plate 201 immediately when the sealing plate 201 moves.

[0031] During operation, the blocking plate 7 is first rotated to allow the car to enter the compartment 1. Rotating the blocking plate 7 again blocks the inlet, and installing the screws prevents rotation of the blocking plate 7, improving its stability and allowing the car to conduct experiments inside the compartment 1. Rotating the rotating cylinder 5, with the threads on the two threaded rods 6 arranged in opposite directions, allows the distance between the two threaded rods 6 to decrease, thus moving the two sealing plates 201. This reduces the distance between the two sealing plates 201, and the movement of the sealing plates 201 further reduces the distance between them. The push rod 206 moves, causing it to first contact the round block 208 just before the two sealing plates 201 come into contact. As the sealing plates 201 continue to move, the sealing gaskets connected to them come into contact, reducing leakage. The movement of the sealing plates 201 also pushes the round block 208, causing the mounting block 209, which is in contact with the round block 208, to move. This allows one side of the mounting block 209 to no longer be inside the hole 207. As the mounting block 209 moves, the groove on its top separates from the ball 211, facilitating subsequent operations. After the spheres 211 separate, because the inclined groove 202 is slidably connected to the sliding block 203, the sliding block 203 can move along the inclined groove 202. The vertical plate 205, fixedly connected to the sliding block 203, also moves. Under the influence of gravity, the vertical plate 205 and the moving plate 204 automatically move along the inclined groove 202. Since the moving plate 204 is slidably connected to the vertical plate 205, the vertical plate 205 can move downwards, keeping the vertical plate 205 and the moving plate 204 always connected. The movement of the vertical plate 205 and the moving plate 204 pushes the gas on the sealing plate 201 to move, and uses... Fan 9 can draw and release hydrogen gas from outlet pipe 3. Because fan 9 can be connected to external purification equipment, it can prevent environmental pollution, shorten the time for harmful gas discharge, reduce the hydrogen concentration on the top of the chamber more quickly, and reduce safety risks such as explosion. It also achieves separation through sealing plate 201 to prevent excessive drawing and reduce the discharge of other gases with hydrogen, thus reducing the impact on the experiment. After the hydrogen discharge is completed and gas exchange is required, the air pumps 8 at inlet pipe 4 and outlet pipe 3 are turned on. The air pump 8 in inlet pipe 4 draws gas, and the air pump 8 in outlet pipe 3 releases gas. In this way, the gas enters and exits, completing the gas exchange work.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An environmental test chamber ventilation device, comprising a chamber body (1), characterized in that: Both sides of the cabin (1) are provided with motion mechanisms (2), which extend into the interior of the cabin (1). The top of the cabin (1) is provided with an air outlet pipe (3), and the bottom of the cabin (1) is provided with an air inlet pipe (4). Both the air inlet pipe (4) and the air outlet pipe (3) are provided with air pumps (8). The top front of the cabin (1) is provided with a rotating cylinder (5). The motion mechanism (2) includes two sealing plates (201), which are in contact with the cabin (1). An inclined groove (202) is provided on the inner wall of the top of the cabin (1). A sliding block (203) is provided inside the inclined groove (202), and the sliding block (203) is slidably connected to the inclined groove (202). A motion plate (204) is provided on the top of the sealing plate (201). A vertical plate (205) is provided on the side of the top of the plate (204) away from the air outlet pipe (3). The vertical plate (205) and the moving plate (204) are in contact with the inner wall of the cabin (1). The vertical plate (205) and the moving plate (204) are slidably connected. A push rod (206) is fixedly provided on the end of the sealing plate (201) away from the vertical plate (205). The cross-sectional shape of the push rod (206) is L-shaped. The sliding block (203) is fixedly connected to the vertical plate (205).

2. The environmental test chamber ventilation device according to claim 1, characterized in that: The air pump (8) is equipped with a filter pipe at the top, and the rotating cylinder (5) is equipped with threaded rods (6) at both ends, and there are two threaded rods (6). A fan (9) is provided on one side of the air outlet pipe (3).

3. The ventilation device for an environmental test chamber according to claim 2, characterized in that: The threads on the surfaces of the two threaded rods (6) are arranged in opposite directions. The threaded rods (6) are threadedly connected to the rotating cylinder (5). A blocking plate (7) is provided on the side of the cabin (1) away from the air inlet pipe (4), and one side of the blocking plate (7) is fixedly connected to the cabin (1) by screws.

4. The environmental test chamber ventilation device according to claim 3, characterized in that: The other side of the blocking plate (7) is connected to the cabin (1) via a hinge. The cabin (1) has an inlet on the side surface near the blocking plate (7). The area of ​​the blocking plate (7) is larger than the area of ​​the inlet.

5. The environmental test chamber ventilation device according to claim 1, characterized in that: Both sides of the cabin (1) are provided with holes (207), and a round block (208) is provided inside the hole (207). The round block (208) is slidably connected to the hole (207).

6. The ventilation device for an environmental test chamber according to claim 5, characterized in that: The top ends of the circular block (208) and the push rod (206) are horizontally collinear. A mounting block (209) is provided on one side of the circular block (208). A groove is provided on the top of the mounting block (209). A telescopic rod (210) is provided above the groove.

7. The environmental test chamber ventilation device according to claim 6, characterized in that: The mounting block (209) is fixedly connected to the moving plate (204), a connecting spring is arranged around the outside of the telescopic rod (210), and a ball (211) is arranged at the bottom end of the telescopic rod (210).

8. The environmental test chamber ventilation device according to claim 1, characterized in that: A sealing gasket is provided at the end of the sealing plate (201) away from the push rod (206), and a protrusion (212) is provided at the top of the end of the sealing plate (201) near the sealing gasket.

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