Cab mask with good sound insulation effect for rail transit vehicle

Abstract

The utility model discloses a cab mask with a good sound insulation effect for a rail transit vehicle, relates to the technical field of masks, and solves the problems that sound insulation cannot be effectively carried out and the sound insulation effect is not ideal, the cab mask comprises a mask body, L-shaped supporting plates are fixedly connected to the left side and the right side of the mask body, and one side of each L-shaped supporting plate is in threaded connection with a screw. One side of the screw rod is fixedly connected with a rotating handle, one end, far away from the rotating handle, of the screw rod is rotatably connected with a sound insulation cover through a bearing, the face of a driver can be protected by arranging the face shield body, the ears of the driver can be protected by arranging the sound insulation cover, meanwhile, sound insulation can be achieved, and noise heard by the driver is reduced; by arranging an L-shaped supporting plate, a rotating handle and a screw rod, the sound insulation cover can be driven to move, the sound insulation cover makes close contact with the two ears of a driver, the sound insulation effect is further improved, adjustment can be conducted after wearing, the sound insulation effect is good, and the using effect of the driver is good.

Description

Technical Field

[0001] This utility model relates to the field of face mask technology, and in particular to a face mask for the driver's cab of rail transit vehicles with good sound insulation. Background Technology

[0002] Face masks are protective devices for protecting a person's face. Some face masks also have breathing apparatus. Face masks used in different applications may vary greatly. Protective face masks are often equipped in the driver's cab of rail transit vehicles to protect the driver's face in case of emergencies, making it easier for the driver to operate the vehicle and handle emergencies. Although some of the current vehicle driver's cab face masks can meet normal use requirements, they still have certain defects in actual use. For example, the sound insulation effect of the current vehicle driver's cab face masks is not ideal. After actual use, they cannot effectively block sound, which affects the driver's handling of emergencies. Improvements are needed. Therefore, a rail transit vehicle driver's cab face mask with better sound insulation effect is proposed. Utility Model Content

[0003] In order to improve the problem of ineffective sound insulation and unsatisfactory sound insulation effect, this utility model provides a driver's cab cover for rail transit vehicles with good sound insulation effect.

[0004] This utility model provides a driver's cab cover for rail transit vehicles with good sound insulation, and adopts the following technical solution:

[0005] A driver's cab mask for rail transit vehicles with good sound insulation includes a mask body. L-shaped support plates are fixedly connected to both the left and right sides of the mask body. A screw is threaded to one side of the L-shaped support plate. A rotating handle is fixedly connected to one side of the screw. A sound insulation cover is rotatably connected to the end of the screw away from the rotating handle through a bearing. A protective pad is fixedly connected to the side of the sound insulation cover away from the screw. A protective layer is provided on the surface of the mask body.

[0006] By adopting the above technical solution, the driver's ears can be protected, and sound insulation can be achieved, reducing the noise heard by the driver. It can also move the sound insulation cover to make close contact with the driver's ears, further improving the sound insulation effect. This method can be adjusted after wearing, and the sound insulation effect is good, resulting in a good driving experience.

[0007] Optionally, the protective layer includes a heat insulation layer, a sound insulation layer, and a wear-resistant layer. The heat insulation layer is disposed on the outer surface of the mask body, the sound insulation layer is disposed on the outer surface of the heat insulation layer, and the wear-resistant layer is disposed on the outer surface of the sound insulation layer.

[0008] By adopting the above technical solution, the outer surface of the mask body can be protected, thereby improving the service life of the mask body.

[0009] Optionally, a slider is fixedly connected to the front of the soundproof cover, and a groove for use with the slider is opened on the front of the inner cavity of the L-shaped support plate. The outer surface of the slider is slidably connected to the inner surface of the groove.

[0010] By adopting the above technical solution, the movement of the soundproof enclosure can be guided and limited.

[0011] Optionally, a transparent observation plate is embedded in the front of the mask body, and a breathing hole is opened at the bottom of the front of the mask body.

[0012] By adopting the above technical solution, it becomes easier for drivers to observe external conditions.

[0013] Optionally, a fixing strap is provided at the top of the back of the mask body, and the fixing strap is an elastic band.

[0014] By adopting the above technical solution, it is easy to fix and limit the mask body.

[0015] Optionally, the heat insulation layer is a polybutylene succinate film layer, the sound insulation layer is a damping adhesive film layer, and the wear-resistant layer is a polytetrafluoroethylene coating.

[0016] Optionally, the surface of the mask body is arc-shaped, and the thickness of the protective pad is 3mm.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. This utility model protects the driver's face by setting up a mask body, protects the driver's ears by setting up a soundproof cover, and also provides sound insulation to reduce the noise heard by the driver. By setting up an L-shaped support plate, a rotating handle and a screw, the soundproof cover can be moved to make close contact with the driver's ears, further improving the sound insulation effect. This method can be adjusted after wearing, and has a good sound insulation effect, making it easy for the driver to use.

[0019] 2. This utility model constructs a protective layer by setting up a heat insulation layer, a sound insulation layer and a wear-resistant layer, which can protect the outer surface of the mask body and improve the service life of the mask body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top sectional view of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the soundproof cover structure of this utility model;

[0023] Figure 4 This is a partial cross-sectional view of the protective layer structure of this utility model.

[0024] In the diagram: 1. Mask body; 2. L-shaped support plate; 3. Screw; 4. Rotary handle; 5. Soundproof cover; 6. Protective pad; 7. Protective layer; 701. Heat insulation layer; 702. Sound insulation layer; 703. Wear-resistant layer; 8. Sliding block; 9. Slide groove; 10. Transparent observation plate; 11. Breathing hole; 12. Fixing strap. 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] Example 1:

[0027] Please refer to Figure 1-4 A driver's cab mask for rail transit vehicles with good sound insulation includes a mask body 1. L-shaped support plates 2 are fixedly connected to both the left and right sides of the mask body 1. A screw rod 3 is threadedly connected to one side of the L-shaped support plate 2. A rotating handle 4 is fixedly connected to one side of the screw rod 3. A sound insulation cover 5 is rotatably connected to the end of the screw rod 3 away from the rotating handle 4 through a bearing. A protective pad 6 is fixedly connected to the side of the sound insulation cover 5 away from the screw rod 3. A protective layer 7 is provided on the surface of the mask body 1.

[0028] As a further technical optimization of this utility model, the front of the soundproof cover 5 is fixedly connected to a slider 8, and the front of the inner cavity of the L-shaped support plate 2 is provided with a groove 9 for use with the slider 8. The outer surface of the slider 8 is slidably connected to the inner surface of the groove 9.

[0029] As a further technical optimization of this utility model, a transparent observation plate 10 is embedded in the front of the mask body 1, and a breathing hole 11 is opened at the bottom of the front of the mask body 1.

[0030] As a further technical optimization of this utility model, a fixing strap 12 is provided on the top of the back of the mask body 1, and the fixing strap 12 is an elastic band.

[0031] As a further technical optimization of this utility model, the surface of the mask body 1 is arc-shaped, and the thickness of the protective pad 6 is 3mm.

[0032] In this embodiment: by setting the mask body 1, the driver's face can be protected; by setting the soundproof cover 5, the driver's ears can be protected and soundproofed, reducing the noise heard by the driver; by setting the L-shaped support plate 2, the handle 4, and the screw 3, the soundproof cover 5 can be moved to make close contact with the driver's ears, further improving the soundproofing effect. This method can be adjusted after wearing, with good soundproofing effect and good driving experience; by setting the slider 8 and the groove 9, the movement of the soundproof cover 5 can be guided and limited; by setting the transparent observation plate 10, the driver can easily observe the outside situation through the mask body 1; by setting the breathing hole 11, the driver can easily breathe; by setting the fixing strap 12, the mask body 1 can be easily fixed to the driver's face for use.

[0033] Example 2:

[0034] Reference Figure 2 and Figure 4 The protective layer 7 includes a heat insulation layer 701, a sound insulation layer 702, and a wear-resistant layer 703. The heat insulation layer 701 is disposed on the outer surface of the mask body 1, the sound insulation layer 702 is disposed on the outer surface of the heat insulation layer 701, and the wear-resistant layer 703 is disposed on the outer surface of the sound insulation layer 702.

[0035] As a further technical optimization of this utility model, the heat insulation layer 701 is a polybutylene succinate film layer, which has excellent mechanical properties and good heat insulation performance; the sound insulation layer 702 is a damping adhesive film layer, which has good sound insulation, heat insulation, sealing and corrosion resistance; and the wear-resistant layer 703 is a polytetrafluoroethylene coating, which has excellent chemical stability, corrosion resistance, sealing performance, high lubricity and non-stickiness, electrical insulation and good wear resistance.

[0036] In this embodiment, a protective layer 7 is constructed by setting a heat insulation layer 701, a sound insulation layer 702, and a wear-resistant layer 703, which can protect the outer surface of the mask body 1 and improve the service life of the mask body 1.

[0037] The implementation principle of this utility model is as follows: When a rail transit vehicle encounters an emergency and the driver needs to wear the mask body 1 for facial protection, the mask body 1 is fixed to the driver's face with the fixing strap 12, so that the soundproof cover 5 covers the driver's ears and provides sound insulation protection. Then, the handle 4 is rotated, which drives the screw 3 to rotate. The screw 3, guided by the slider 8 and the groove 9, moves the soundproof cover 5 towards the center, so that the soundproof cover 5 fits tightly against the skin of the ears, further improving the sound insulation effect and isolating external noise. At the same time, the surface of the mask body 1 is protected by the heat insulation layer 701, the sound insulation layer 702, and the wear-resistant layer 703. The heat insulation layer 701 can improve the heat insulation performance of the surface of the mask body 1, the sound insulation layer 702 can improve the sound insulation performance of the mask body 1, and the wear-resistant layer 703 can improve the wear resistance of the mask body 1. This method can be adjusted after wearing, with good sound insulation effect and good driving experience.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cab mask for a rail vehicle with good sound insulation, comprising a mask body (1), characterized in that: Both sides of the mask body (1) are fixedly connected with L-shaped support plates (2), one side of the L-shaped support plate (2) is threadedly connected with a screw rod (3), one side of the screw rod (3) is fixedly connected with a rotating handle (4), the screw rod (3) is rotatably connected with a soundproof cover (5) through a bearing at the end away from the rotating handle (4), the soundproof cover (5) is fixedly connected with a protective pad (6) on the side away from the screw rod (3), and the surface of the mask body (1) is provided with a protective layer (7).

2. The driver's cab mask for rail transit vehicles with good sound insulation effect according to claim 1, characterized in that: The protective layer (7) comprises a heat insulation layer (701), a sound insulation layer (702) and a wear-resistant layer (703), the heat insulation layer (701) is arranged on the outer surface of the mask body (1), the sound insulation layer (702) is arranged on the outer surface of the heat insulation layer (701), and the wear-resistant layer (703) is arranged on the outer surface of the sound insulation layer (702).

3. The driver's cab mask for rail transit vehicles with good sound insulation effect according to claim 1, characterized in that: The front surface of the soundproof cover (5) is fixedly connected with a sliding block (8), and the front surface of the inner cavity of the L-shaped support plate (2) is provided with a sliding groove (9) matched with the sliding block (8), and the outer surface of the sliding block (8) is slidably connected with the inner surface of the sliding groove (9).

4. The driver's cab mask for rail transit vehicles with good sound insulation effect according to claim 1, characterized in that: The front surface of the mask body (1) is embedded with a transparent observation plate (10), and the bottom of the front surface of the mask body (1) is provided with a breathing hole (11).

5. The cab mask of claim 1, wherein: The top of the back surface of the mask body (1) is provided with a fixing belt (12), and the fixing belt (12) is an elastic belt.

6. The driver's cab mask for rail transit vehicles with good sound insulation effect according to claim 2, characterized in that: The heat insulation layer (701) is a polybutylene succinate film layer, the sound insulation layer (702) is a damping rubber film layer, and the wear-resistant layer (703) is a polytetrafluoroethylene coating.

7. The driver's cab mask for rail transit vehicles with good sound insulation effect according to claim 1, characterized in that: The surface of the mask body (1) is arc-shaped, and the thickness of the protective pad (6) is 3mm.

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