Non-electric anti-fog device for rearview mirror

Abstract

The utility model relates to the field of coal mine vehicles, in particular to a rearview mirror power-free anti-fog device which comprises an engine, an air compressor, a heat exchanger and a rearview mirror, the engine is connected with the air compressor, the air compressor is connected with the heat exchanger through an air pipe, the heat exchanger is connected with the rearview mirror through the air pipe, and the rearview mirror is connected with the heat exchanger through the air pipe. The engine, the air compressor, the heat exchanger, the air pipe and other parts are arranged, in the working process, the engine drives the air compressor to work, compressed air is used as a heat conduction medium, the compressed air is introduced into the heat exchanger through the air pipe, and the heat exchanger is used for heat conduction. The compressed air is heated through waste heat of an engine, the heated hot air is introduced into the rearview mirror shell through the air pipe, a heat source is provided for the rearview mirror lens through the hot air, the situation that condensate water and fogging are formed on the mirror surface due to low temperature is prevented, and the purposes that the rearview mirror can operate in the coal mine gas mine environment and safety is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles for coal mines, in particular to a non-electric anti-fogging device for a rearview mirror. Background Art

[0002] The rearview mirror defogger function is a very practical technology. It embeds a heating wire behind the lens. When water droplets or fog appear on the surface of the rearview mirror, the heating wire will heat up quickly to help remove the water mist or snow on the mirror surface, maintain the clarity of the rearview mirror, and significantly improve driving safety.

[0003] After searching, a Chinese patent with publication number CN214450634U discloses an anti-fog device for a car rearview mirror. The technical key points are: solving the problem that the existing anti-fog device has poor defogging effect, cannot quickly defog the car rearview mirror, is not convenient for users to quickly observe the road conditions, has certain disadvantages, cannot meet the needs of users, and reduces the practicality of the anti-fog device.

[0004] However, due to the presence of flammable and explosive gas in coal mines, it is difficult to make conventional road electric heated rearview mirrors into explosion-proof structures for use in coal mines. However, trackless vehicles running underground need to cross-operate above and below the mine surface. When entering and exiting the tunnel, the temperature difference in the environment can easily cause large-scale fogging of the rearview mirrors, affecting driving safety. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the above background technology, the prior art has the shortcomings and defects of potential safety hazards in operating electric demisting in coal mines due to the presence of flammable and explosive gas.

[0006] The utility model discloses a non-electric anti-fogging device for a rearview mirror, comprising an engine, an air compressor, a heat exchanger and a rearview mirror, wherein the engine is connected to the air compressor, the air compressor and the heat exchanger are connected via an air pipe, the heat exchanger and the rearview mirror are connected via the air pipe, and one end of the air pipe is arranged in the rearview mirror.

[0007] Furthermore, the rearview mirror includes a shell, a lens is provided on one side of the shell, the shell is clamped with the lens, a hose is provided on the inner side of the shell, the hose is connected to the air pipe through a connecting piece, and an air hole is provided on the hose, and the air hole faces the lens.

[0008] Furthermore, the hose is wired in a serpentine manner, a clamping block is provided between the corner of the hose and the shell, the clamping block is mounted on the shell, an arc groove is provided on the clamping block, and the hose is clamped in the arc groove.

[0009] Furthermore, the connecting piece includes a connecting cap, which is mounted on the hose, and the hose is threadedly connected to the air pipe.

[0010] Furthermore, the shell is provided with a plurality of through holes, and the plurality of shells are evenly arranged around the outer circle of the lens.

[0011] Furthermore, a flow guide tube is provided on one side of the through hole, and the flow guide tube is threadedly connected to the through hole.

[0012] Furthermore, a threaded cap is provided at one end of the hose away from the air pipe, and the threaded cap is threadably connected to the hose.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with an engine, an air compressor, a heat exchanger, an air pipe and other components. During operation, the engine drives the air compressor to work, and compressed air is used as a heat conduction medium. The compressed gas is introduced into the heat exchanger through the air pipe, and the compressed air is heated by the waste heat of the engine. The heated hot air is introduced into the rearview mirror housing through the air pipe, and the hot air is used to provide a heat source for the rearview mirror lens to prevent the mirror surface from fogging due to condensation water formed due to low temperature, so that it can operate in the coal mine gas mine environment, avoid the occurrence of electric sparks, and improve the safety of the staff at work.

[0015] 2. The utility model is provided with a connecting cap, a hose, a clamping block, an air hole, a guide tube and other components. During operation, one end of the hose is connected to the air pipe through the connecting cap, so that the hose can be replaced after being damaged, and the corner position of the hose is restricted by the clamping block, so that the hose is arranged into a specified shape, so that the heat dissipated by the hose is more evenly transferred to the lens, thereby improving the anti-fogging effect, and the guide tube and the through hole cooperate with each other, so that the gas in the shell can be guided to the lens, so that a layer of air wall is formed on the surface of the lens to protect the lens, thereby achieving a dust-proof and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a connection diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rearview mirror of the utility model;

[0019] Figure 3It is a partial explosion schematic diagram of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1. engine; 2. air compressor; 3. heat exchanger; 4. air pipe; 5. rearview mirror; 6. housing; 7. lens; 8. hose; 9. block; 10. arc groove; 11. air hole; 12. through hole; 13. guide tube; 14. connecting cap; 15. threaded cap. DETAILED DESCRIPTION

[0022] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0023] See also Figure 1 , Figure 3 The utility model provides a non-electric anti-fogging device for a rearview mirror, comprising an engine 1, an air compressor 2, a heat exchanger 3, and a rearview mirror 5. The engine 1 is connected to the air compressor 2, and the air compressor 2 is set as an air compressor 2 that is generally provided by a fuel vehicle, and can provide a 0.5-0.8MP air source. The air compressor 2 and the heat exchanger 3 are connected through an air pipe 4, and the heat exchanger 3 and the rearview mirror 5 are connected through an air pipe 4, and the air pipe 4 is set as a φ6 air pipe 4, and one end of the air pipe 4 is set in the rearview mirror 5.

[0024] In this embodiment, during operation, the air compressor 2 is driven by the engine 1, and the compressed air of the air compressor 2 is used as a heat transfer medium. The compressed gas is introduced into the heat exchanger 3 through the air pipe 4, and the compressed air is heated by the waste heat of the engine 1. The heated hot air is introduced into the outer shell of the rearview mirror 5 through the air pipe 4. The hot air is used to provide a heat source for the mirror surface of the rearview mirror 5 to prevent the mirror surface from fogging due to condensation water formed due to low temperature, so that it can operate in the coal mine gas mine environment, avoid the occurrence of electric sparks, and improve the safety of the staff at work.

[0025] like Figure 2 , Figure 3The rearview mirror 5 includes a shell 6, a lens 7 is arranged on one side of the shell 6, the shell 6 is clamped with the lens 7, a hose 8 is arranged on the inner side of the shell 6, the hose 8 is connected with the trachea 4 through a connector, an air hole 11 is arranged on the hose 8, the air hole 11 faces the lens 7, after the hot air is guided into the shell 6 through the trachea 4, the hot air in the trachea 4 enters the hose 8, and the heat is blown toward the lens 7 through the air hole 11 on the hose 8, so as to improve the anti-fogging effect of the lens 7.

[0026] like Figure 3 , Figure 4 As shown, the hose 8 is laid out in a serpentine shape, and a clamp block 9 is provided between the corner of the hose 8 and the outer shell 6. The clamp block 9 is mounted on the outer shell 6, and an arc groove 10 is provided on the clamp block 9. The hose 8 is clamped in the arc groove 10, so that the hose 8 and the clamp block 9 can be conveniently connected or disassembled. The position of the hose 8 is fixed by the clamp block 9 to prevent the hose 8 from shaking, and the different positions of the hose 8 are fixed and restricted by the clamp block 9, so that the hose 8 can be arranged into a specified shape, thereby blowing hot air evenly toward the lens 7.

[0027] like Figure 3 As shown, the connector includes a connecting cap 14, which is installed on the hose 8. The hose 8 is threadedly connected to the trachea 4. The hose 8 is connected to one end of the trachea 4 through the connecting cap 14, so that the heat in the trachea 4 can be stably transferred to the hose 8. When the hose 8 is damaged, the connecting cap 14 can be separated from the trachea 4 by rotating the connecting cap, so that the hose 8 can be disassembled and replaced.

[0028] In this embodiment, a plurality of through holes 12 are provided on the outer shell 6, and the plurality of outer shells 6 are evenly arranged around the outer circle of the lens 7. The through holes 12 can guide the hot air in the outer shell 6 to the outside of the outer shell 6 and form an air wall around the lens 7 to achieve a dust-proof effect. By installing fixing blocks on a specified number of through holes 12 to seal the through holes 12, the rapid loss of heat in the outer shell 6 can be avoided.

[0029] In this embodiment, a guide tube 13 is provided on one side of the through hole 12, and the guide tube 13 is threadedly connected to the through hole 12. The gas flowing out of the through hole 12 is guided by the guide tube 13 so that the gas blows toward the lens 7, thereby avoiding the formation of an air wall on the lens 7, achieving the effect of cleaning the surface of the lens 7 and preventing dust from approaching the lens 7.

[0030] In this embodiment, a threaded cap 15 is provided at one end of the hose 8 away from the trachea 4. The threaded cap 15 is threadedly connected to the hose 8. One end of the hose 8 is blocked by the threaded cap 15, so that the gas in the hose 8 can only flow out from the air hole 11, so that the gas pressure blown out of the air hole 11 is relatively large, which can accelerate the heating effect of the lens 7. By removing the threaded cap 15 from the hose 8, the gas in the hose 8 can be unobstructed, so that the gas can quickly fill the space inside the shell 6.

[0031] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A non-electric anti-fogging device for a rearview mirror, comprising an engine (1), an air compressor (2), a heat exchanger (3), and a rearview mirror (5), characterized in that: The engine (1) is connected to the air compressor (2), the air compressor (2) is connected to the heat exchanger (3) via an air pipe (4), the heat exchanger (3) is connected to the rearview mirror (5) via the air pipe (4), and one end of the air pipe (4) is arranged in the rearview mirror (5).

2. The non-electric anti-fogging device for rearview mirror according to claim 1, characterized in that: The rearview mirror (5) comprises a shell (6), a lens (7) is arranged on one side of the shell (6), the shell (6) is snap-connected with the lens (7), a hose (8) is arranged inside the shell (6), the hose (8) is connected to the air pipe (4) via a connecting piece, an air hole (11) is arranged on the hose (8), and the air hole (11) faces the lens (7).

3. The non-electric anti-fogging device for rearview mirror according to claim 2, characterized in that: The hose (8) is wired in a serpentine manner, a clamping block (9) is provided between a corner of the hose (8) and the housing (6), the clamping block (9) is mounted on the housing (6), an arc-shaped groove (10) is provided on the clamping block (9), and the hose (8) is clamped in the arc-shaped groove (10).

4. The non-electric anti-fogging device for rearview mirror according to claim 2, characterized in that: The connecting piece comprises a connecting cap (14), the connecting cap (14) is mounted on the hose (8), and the hose (8) is threadedly connected to the air pipe (4).

5. The non-electric anti-fogging device for rearview mirror according to claim 2, characterized in that: The outer shell (6) is provided with a plurality of through holes (12), and the plurality of outer shells (6) are evenly arranged around the outer circle of the lens (7).

6. The non-electric anti-fogging device for rearview mirror according to claim 5, characterized in that: A flow guide tube (13) is provided on one side of the through hole (12), and the flow guide tube (13) is threadedly connected to the through hole (12).

7. The non-electric anti-fogging device for rearview mirror according to claim 2, characterized in that: A threaded cap (15) is provided at one end of the hose (8) away from the air pipe (4), and the threaded cap (15) is threadably connected to the hose (8).

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