Fire fighting helmet convenient for talkback and noise reduction

Abstract

The utility model discloses a fire fighting helmet convenient for talkback and noise reduction, which comprises a helmet shell used for protecting the head, a processor used for processing audio information and a microphone with an active noise reduction function, the helmet shell is of an arc-shaped structure, the microphone is arranged on one side of the helmet shell, and the microphone is arranged on the other side of the helmet shell. The helmet comprises a helmet shell, a microphone is installed on the helmet shell, an earphone is installed on the side, opposite to the microphone, of the helmet shell, a loudspeaker box is installed on the arc-shaped face of the outer side of the helmet shell, and a processor is installed on the earphone through a transmission line. Middle and long distances can be communicated through the open-type sound box and the active noise reduction microphone, the talkback helmet can enable an operator to put down an interphone, two hands are liberated, and the operation efficiency and the operation safety performance are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire helmets, and in particular relates to a fire helmet which is convenient for intercom noise reduction. Background Art

[0002] Helmets are protective equipment used to prevent or reduce injuries to the head caused by collisions, impacts, burns, electric shocks, etc. in emergencies. Helmets usually include shells, buffer layers, pads, wearing devices, masks, etc. Extended functions also include intercom and call functions.

[0003] In the existing technical solutions, the helmet has the function of daily communication, but does not have the ability to communicate under high-frequency noise. Through multi-channel understanding and experimental proof, there is currently no noise-reducing intercom helmet suitable for working environments on the market, so a fire helmet that is convenient for intercom noise reduction is needed.

[0004] It should be noted that the above content belongs to the scope of technical cognition of practical people and does not necessarily constitute prior art. Utility Model Content

[0005] The utility model aims to solve the shortcoming that the existing helmets in the prior art do not have the communication ability under high-frequency noise, and proposes a fire helmet that is convenient for intercom and noise reduction.

[0006] To achieve the above-mentioned purpose, the utility model proposes a fire helmet that is convenient for intercom noise reduction, including a helmet shell for protecting the head, a processor for processing audio information, and a microphone with an active noise reduction function. The helmet shell is an arc-shaped structure, and a microphone is installed on one side of the helmet shell, and headphones are installed on the side of the helmet shell opposite to the microphone. A speaker is installed on the outer arc surface of the helmet shell, and the headphones are installed with a processor through a transmission line. The transmission line runs through the helmet shell, and the headphones are installed at one end of the transmission line, and the processor is installed at the other end of the transmission line. An automatic receiving mechanism is installed in the middle position of the transmission line, and the processor is installed inside the helmet shell through a clamping mechanism.

[0007] Preferably, the automatic recovery mechanism includes: a wire taking-up bin, a wire entry hole, a rotating shaft, a rotating shaft, a clockwork spring, a clamping block, and a clamping spring. The wire taking-up bin is installed inside the helmet shell. The wire taking-up bin is a cylindrical hollow structure, and an opening is provided at the upper end of the wire taking-up bin. A wire entry hole is provided on the arc-shaped side of the wire taking-up bin, and a transmission line is inserted into the wire entry hole. A rotating shaft is installed at the inner center position of the wire taking-up bin, one side of the rotating shaft is rotatably connected to the wire taking-up bin, and a rotating shaft is installed on the other side of the rotating shaft, and a clockwork spring is installed between the rotating shaft and the wire taking-up bin.

[0008] Preferably, the rotating shaft has an arc-shaped structure, and a clamp is installed on one side of the arc-shaped concave surface of the rotating shaft through a spring, one end of the spring is fixedly connected to the clamp, and the other end of the spring is fixedly connected to the rotating shaft, and the transmission line is clamped between the two groups of clamps.

[0009] Preferably, the clamping mechanism includes: a fixed bin, a mounting block, and a fixed spring. One end of the rotating shaft is fixedly connected to the rotating shaft, and the other end of the rotating shaft is fixedly connected to the fixed bin. The fixed bin is a cylindrical hollow structure, and an opening is provided on the side of the fixed bin away from the wire taking-up bin. Four groups of fixed springs are installed on the inner arc surface of the fixed bin.

[0010] Preferably, one end of the fixing spring is fixedly connected to the arc-shaped inner wall of the fixing bin, and the other end of the fixing spring is fixedly connected to the mounting block, the mounting block is trapezoidal in structure, and the inclined side of the mounting block faces the center position of the fixing bin, and the processor is clamped between the four groups of mounting blocks.

[0011] Preferably, a guide rail is installed on the outer curved surface of the helmet, and the processor is electrically connected to the microphone, earphones and speakers.

[0012] The fire helmet that is convenient for intercom noise reduction proposed by the utility model can bring the following beneficial effects:

[0013] 1. In the utility model, a clamp is used to clamp the transmission line, and a torsion spring drives the rotating shaft to rotate. The rotation of the rotating shaft causes the transmission line to be wound and rolled up, thereby shortening the length of the earphone. When the earphone is used, the transmission line is pulled so that the earphone can be adjusted in length. The utility model is applicable to a variety of situations, and the rotation of the rotating shaft drives the processor to rotate, thereby preventing the outer skin of the earphone cable from being damaged due to long-term rotation.

[0014] 2. In the utility model, workers can communicate through normal calls when working at close range, and can communicate through open speakers and active noise reduction microphones at medium and long distances. The intercom helmet allows workers to put down the intercom, free their hands, and improve work efficiency and work safety performance; workers in noisy environments can communicate through in-ear headphones and active noise reduction microphones. The active noise reduction microphone shields high-band noise and only recognizes the human voice to achieve long-distance work guidance and communication. The in-ear headphones passively reduce the surrounding noisy sounds to achieve two-way communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a fire helmet that is convenient for intercom noise reduction proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a fire helmet that is convenient for intercom noise reduction proposed by the utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the overall structure of a fixed compartment in a fire helmet that is convenient for intercom noise reduction proposed by the utility model;

[0019] Figure 4 This is a perspective view of the overall structure of a fixed compartment in a fire helmet that is convenient for intercom noise reduction proposed by the utility model;

[0020] Figure 5 The utility model provides a structural schematic diagram of a wire collection bin in a fire helmet that is convenient for intercom noise reduction.

[0021] In the figure: 1. Helmet shell; 2. Guide rail; 3. Microphone; 4. Earphone; 5. Speaker; 6. Transmission line; 7. Wire collection bin; 8. Wire entry hole; 9. Rotating shaft; 10. Rotating shaft; 11. Clockwork spring; 12. Clamp block; 13. Clamping spring; 14. Fixed bin; 15. Mounting block; 16. Fixed spring; 17. Processor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "surrounding" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0024] like Figure 1-5As shown, the utility model proposes a fire helmet that is convenient for intercom noise reduction, including a helmet shell 1 for protecting the head, a processor 17 for processing audio information, and a microphone 3 with an active noise reduction function. The helmet shell 1 is an arc-shaped structure, and the microphone 3 is installed on one side of the helmet shell 1, and an earphone 4 is installed on the side opposite to the microphone 3 on the helmet shell 1, a speaker 5 is installed on the outer arc surface of the helmet shell 1, and the earphone 4 is installed with the processor 17 through a transmission line 6, the transmission line 6 runs through the helmet shell 1, the earphone 4 is installed at one end of the transmission line 6, and the processor 17 is installed at the other end of the transmission line 6, an automatic receiving mechanism is installed in the middle position of the transmission line 6, and the processor 17 is installed inside the helmet shell 1 through a clamping mechanism.

[0025] Among them, the automatic recovery mechanism includes: a wire collection bin 7, a wire entry hole 8, a rotating shaft 9, a rotating shaft 10, a clockwork spring 11, a clamping block 12, and a clamping spring 13. The wire collection bin 7 is installed inside the helmet shell 1. The wire collection bin 7 is a cylindrical hollow structure, and an opening is provided at the upper end of the wire collection bin 7. The arc-shaped side of the wire collection bin 7 is provided with a wire entry hole 8, and the transmission line 6 is inserted into the wire entry hole 8. A rotating shaft 9 is installed at the inner center position of the wire collection bin 7. One side of the rotating shaft 9 is rotatably connected to the wire collection bin 7, and a rotating shaft 10 is installed on the other side of the rotating shaft 9. A clockwork spring 11 is installed between the rotating shaft 10 and the wire collection bin 7.

[0026] Among them, the rotating shaft 10 has an arc-shaped structure, and a clamp 12 is installed on one side of the arc-shaped concave surface of the rotating shaft 10 through a spring. One end of the spring is fixedly connected to the clamp 12, and the other end of the spring is fixedly connected to the rotating shaft 10. The transmission line 6 is clamped between the two sets of clamps 12.

[0027] Among them, the clamping mechanism includes: a fixed bin 14, a mounting block 15, and a fixed spring 16. One end of the rotating shaft 10 is fixedly connected to the rotating shaft 9, and the other end of the rotating shaft 10 is fixedly connected to the fixed bin 14. The fixed bin 14 is a cylindrical hollow structure, and an opening is provided on the side of the fixed bin 14 away from the wire taking-up bin 7. Four groups of fixed springs 16 are installed on the inner arc surface of the fixed bin 14.

[0028] Among them, one end of the fixing spring 16 is fixedly connected to the arc-shaped inner wall of the fixing bin 14, and the other end of the fixing spring 16 is fixedly connected to the mounting block 15. The mounting block 15 has a trapezoidal structure, and the inclined side of the mounting block 15 faces the center position of the fixing bin 14. The processor 17 is clamped between the four groups of mounting blocks 15.

[0029] A guide rail 2 is installed on the outer curved surface of the helmet, and the processor 17 is electrically connected to the microphone 3, the earphone 4, and the speaker 5.

[0030] Among them, the clamping block 12 is used to clamp the transmission line 6, and the torsion spring drives the rotating shaft 10 to rotate. The rotation of the rotating shaft 10 causes the transmission line 6 to be wound and rolled up, shortening the length of the earphone 4. When using the earphone 4, the transmission line 6 is pulled so that the earphone 4 can adjust the length. It is suitable for various situations, and the rotation of the rotating shaft 10 drives the processor 17 to rotate, preventing the outer skin of the earphone 4 from being damaged due to long-term rotation of the line.

[0031] Among them, when working at close range, the workers can communicate through normal calls, and can communicate through open speakers 5 and active noise reduction microphones 3 at medium and long distances. The intercom helmet allows the workers to put down the intercom, free their hands, and improve work efficiency and work safety performance; in a noisy environment, the workers can communicate through in-ear headphones 4 and active noise reduction microphones 3. The active noise reduction microphones 3 shield high-band noise and only recognize the human voice to achieve long-distance work guidance and communication. The in-ear headphones 4 passively reduce the surrounding noisy sounds to achieve two-way communication.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fire helmet that facilitates noise reduction during intercom, comprising a helmet shell (1) for protecting the head, a processor (17) for processing audio information, and a microphone (3) with an active noise reduction function, characterized in that: The helmet shell (1) is an arc-shaped structure, and a microphone (3) is installed on one side of the helmet shell (1), and an earphone (4) is installed on the side of the helmet shell (1) opposite to the microphone (3). A speaker (5) is installed on the outer arc surface of the helmet shell (1), and the earphone (4) is installed with a processor (17) via a transmission line (6). The transmission line (6) runs through the helmet shell (1), and the earphone (4) is installed at one end of the transmission line (6), and the processor (17) is installed at the other end of the transmission line (6). An automatic receiving mechanism is installed in the middle of the transmission line (6), and the processor (17) is installed inside the helmet shell (1) via a clamping mechanism.

2. A fire helmet that facilitates intercom noise reduction according to claim 1, characterized in that: The automatic recovery mechanism comprises: a wire collection bin (7), a wire entry hole (8), a rotating shaft (9), a rotating shaft (10), a spring spring (11), a clamping block (12), and a clamping spring (13). The wire collection bin (7) is installed inside the helmet shell (1). The wire collection bin (7) is a cylindrical hollow structure, and an opening is provided at the upper end of the wire collection bin (7). The arc-shaped side surface of the wire collection bin (7) is provided with a wire entry hole (8), and a transmission line (6) is inserted into the wire entry hole (8). A rotating shaft (9) is installed at the center position of the wire collection bin (7). One side of the rotating shaft (9) is rotatably connected to the wire collection bin (7), and the other side of the rotating shaft (9) is installed with a rotating shaft (10). A spring spring (11) is installed between the rotating shaft (10) and the wire collection bin (7).

3. A fire helmet that facilitates intercom noise reduction according to claim 2, characterized in that: The rotating shaft (10) has an arc-shaped structure, and a clamping block (12) is installed on one side of the arc-shaped concave surface of the rotating shaft (10) via a spring, one end of the spring is fixedly connected to the clamping block (12), and the other end of the spring is fixedly connected to the rotating shaft (10), and a transmission line (6) is clamped between two groups of the clamping blocks (12).

4. A fire helmet that facilitates intercom noise reduction according to claim 2, characterized in that: The clamping mechanism comprises: a fixed bin (14), a mounting block (15), and a fixed spring (16); one end of the rotating shaft (10) is fixedly connected to the rotating shaft (9), and the other end of the rotating shaft (10) is fixedly connected to the fixed bin (14); the fixed bin (14) is a cylindrical hollow structure, and an opening is provided on a side of the fixed bin (14) away from the wire taking-up bin (7); and four groups of fixed springs (16) are installed on the inner arc surface of the fixed bin (14).

5. A fire helmet that facilitates intercom noise reduction according to claim 4, characterized in that: One end of the fixing spring (16) is fixedly connected to the arc-shaped inner wall of the fixing chamber (14), and the other end of the fixing spring (16) is fixedly connected to the mounting block (15). The mounting block (15) is in a trapezoidal structure, and the inclined side of the mounting block (15) faces the center position of the fixing chamber (14). The processor (17) is clamped between the four groups of mounting blocks (15).

6. A fire helmet that facilitates intercom noise reduction according to claim 1, characterized in that: A guide rail (2) is installed on the outer curved surface of the helmet, and the processor (17) is electrically connected to the microphone (3), the earphone (4), and the speaker (5).

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