Dustproof gas mask with sound transmission function

Abstract

The utility model discloses a dustproof gas mask with a sound transmission function, which belongs to the technical field of dustproof gas masks and comprises a mask body and a sealing rubber body arranged in the mask body, the mask body is of an integrally formed structure, and a sound transmission opening is formed in the middle of the front end of the mask body. Air inlets are formed in the two sides of the sound transmission opening, and the sealing rubber body comprises a face attaching part and a nose bridge pressing part. According to the mask, the air inlet and the mask body are integrally cast, ultrasonic welding is not needed, the problem of air leakage in the using process is solved, meanwhile, the face attaching part and the nose bridge pressing part are arranged in the mask, and external air is prevented from entering the mask.

Description

Technical Field

[0001] The utility model relates to the technical field of dust-proof and gas-proof masks, in particular to a sound-transmitting dust-proof and gas-proof mask. Background Art

[0002] A large amount of toxic gases or vapors are generated in oil production, chemical production, mining, fire fighting and rescue, epidemic prevention, metallurgical production, pesticide spraying, spray painting and decoration, pharmaceutical experiments, etc. Prolonged exposure can cause various diseases such as respiratory tract, lungs, heart, and blood, and may even induce cancer. Therefore, gas masks need to be worn during the operation of the above industries to defend against harmful gases, vapors, and particulate matters (such as poisonous smoke and poisons), and protect the respiratory system and face.

[0003] In the prior art, the air inlet of the gas mask is integrated with the filter, and then connected to the mask body through a hose. It is not integrally formed with the mask body and usually needs to be ultrasonically welded before use to ensure the airtightness of the gas mask, which is rather troublesome.

[0004] Based on this problem, a sound-transmitting dust-proof and gas-proof mask is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sound-transmitting dust-proof and gas-proof mask. The air inlet is integrally cast with the mask body, eliminating the need for ultrasonic welding and preventing gas leakage during use. At the same time, a facial fitting part and a nose bridge pressing part are provided inside the mask to prevent external air from entering the mask.

[0006] To achieve the above purpose, the utility model provides a sound-transmitting dust-proof and gas-proof mask, which includes a mask body and a sealing rubber body arranged inside the mask body. The mask body is set as an integrally formed structure, the front end of the mask body is set as a lens, a sound transmission port is arranged in the middle of the lower end of the front end of the mask body, air inlets are arranged on both sides of the sound transmission port, and the sealing rubber body includes a facial fitting part and a nose bridge pressing part.

[0007] Preferably, a plurality of connecting buckles are arranged around the facial fitting part, and the connecting buckles are integrally formed with the facial fitting part.

[0008] Preferably, the lower end of the facial fitting part is connected to the nose bridge pressing part, and a sound transmission hole corresponding to the position of the sound transmission port of the mask body is arranged on the nose bridge pressing part.

[0009] Preferably, an air outlet hole is arranged at the lower end of the sound transmission hole, an air outlet for the air outlet hole to discharge air is opened at the lower end of the mask body at the position of the sound transmission port, and the opening direction of the air outlet is downward.

[0010] Preferably, air inlet holes are arranged on both sides of the sound transmission hole on the nose bridge pressing part, the air inlet holes correspond to the positions of the air inlets on the mask body, and the air inlet holes and the air inlets are connected to the same filter.

[0011] Preferably, a clamping groove is arranged on the outer edge of the air inlet, and an air inlet valve piece bracket is arranged inside the air inlet.

[0012] Therefore, for the sound transmission, dust-proof and gas-proof mask with the above structure of the present utility model, the air inlet is integrally formed with the mask body, which is different from the conventional setting method in which the air inlet and the filter are integrated and then connected to the mask main body through a hose. Before use, ultrasonic welding is not required for this device, preventing the mask from cracking due to ultrasonic welding and thus causing gas leakage during use. In addition, a sealing rubber body is arranged inside the mask body of this device and is used in cooperation with the external mask body to ensure its close fit with the user's face and prevent external air from entering the mask through gaps.

[0013] The technical solutions of the present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0014] Figure 1 It is the front view of the embodiment of the present utility model;

[0015] Figure 2 It is the rear view of the embodiment of the present utility model;

[0016] Figure 3 It is the bottom side view of the embodiment of the present utility model;

[0017] Figure 4 It is the schematic structural view of the air inlet of the embodiment of the present utility model;

[0018] Among them, 1. Mask body; 2. Sound transmission port; 3. Air inlet; 4. Clamping groove; 5. Air inlet valve piece bracket; 6. Facial fitting part; 7. Nose bridge pressing part; 8. Connection buckle; 9. Sound transmission hole; 10. Air inlet hole; 11. Air outlet. Specific Embodiments

[0019] The technical solutions of the present utility model will be further described below with reference to the drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] Embodiment

[0022] As Figures 1-4 As shown, this utility model provides a voice-transmitting dust-proof and gas-proof mask, which includes a mask body 1 and a sealing rubber body arranged inside the mask body 1. The front end of the mask body 1 is set as a lens, and the lens is integrally injection-molded. In the middle of the lower end of the front end of the mask body 1, there is a voice-transmitting port 2 for transmitting sound. On both sides of the voice-transmitting port 2, there are air inlet ports 3. The outer edge of the air inlet port 3 is provided with a clamping groove 4 for clamping with a filter. Inside the air inlet port 3, there is an air inlet valve piece bracket 5 for installing an air inlet one-way valve, which can provide filtered air for the user.

[0023] The sealing rubber body includes a face-fitting part 6 and a nose bridge pressing part 7. Around the face-fitting part 6, there are a plurality of connecting buckles 8, and the connecting buckles 8 are integrally formed with the face-fitting part 6. The mask is worn on the user's head by connecting with other devices through the connecting buckles 8.

[0024] The lower end of the face-fitting part 6 is connected to the nose bridge pressing part 7. On the nose bridge pressing part 7, there is a voice-transmitting hole 9 corresponding to the voice-transmitting port 2 of the mask body 1. A microphone is arranged at the voice-transmitting hole 9, and the arrangement of the microphone can ensure that the user can make clear sounds; at the lower end of the voice-transmitting hole 9, there is an air outlet hole (not shown in the figure), and the air outlet hole is used for installing an air outlet one-way valve, and the air outlet one-way valve can ensure that external gas does not enter the mask interior. The mask body 1 is provided with an air outlet 11 at the lower end of the voice-transmitting port 2 for the air outlet hole to discharge air. The opening direction of the air outlet 11 is downward, providing a through hole for the user to exhale.

[0025] On the nose bridge pressing part 7, air inlet holes 10 are arranged on both sides of the voice-transmitting hole 9. The air inlet holes 10 correspond to the positions of the air inlet ports 3 on the mask body 1. The air inlet holes 10 and the air inlet ports 3 are connected to the same filter, and this setting can ensure that the user can inhale the gas filtered by the filter into the body.

[0026] Therefore, the belt sound transmission dust-proof and gas-proof mask of the present utility model adopts the above structure, and the air inlet is integrally cast with the mask body, without ultrasonic welding, preventing gas leakage problems during use. At the same time, a facial fitting part and a nose bridge pressing part are provided inside the mask to prevent external air from entering the mask interior.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A voice transmission dust-proof and gas-proof mask, characterized in that: It includes a mask body and a sealing rubber body arranged inside the mask body. The mask body is set as an integrally formed structure. A voice transmission port is arranged in the middle of the front end of the mask body, and air inlets are arranged on both sides of the voice transmission port. The sealing rubber body includes a face fitting part and a nose bridge pressing part.

2. The anti-dust and anti-gas mask with sound transmission according to claim 1, characterized in that: A plurality of connecting buckles are arranged around the face fitting part, and the connecting buckles are integrally formed with the face fitting part.

3. The anti - dust, anti - poison gas mask with sound transmission according to claim 2, characterized in that: The lower end of the face fitting part is connected to the nose bridge pressing part, and a voice transmission hole corresponding to the position of the voice transmission port of the mask body is arranged on the nose bridge pressing part.

4. The gas mask with sound transmission, dust prevention and gas protection according to claim 3, characterized in that: An air outlet hole is arranged at the lower end of the voice transmission hole. An air outlet for the air outlet hole to discharge air is arranged at the lower end of the mask body at the position of the voice transmission port, and the opening direction of the air outlet is downward.

5. The air-purifying dust-proof and gas-proof mask according to claim 4, wherein: Air inlet holes are arranged on both sides of the voice transmission hole on the nose bridge pressing part. The air inlet holes correspond to the positions of the air inlets on the mask body, and the air inlet holes and the air inlets are connected to the same filter.

6. The voice transmission dust-proof and gas-proof mask according to claim 5, characterized in that: A clamping groove is arranged on the outer edge of the air inlet, and an air inlet valve piece bracket is arranged inside the air inlet.

Images