CN219629934U - Alarm type safety helmet sound insulation earmuff - Google Patents

Abstract

The utility model relates to an alarm type safety helmet sound insulation earmuff which comprises a safety helmet bottom buckle, a rotating buckle and an earmuff, wherein the rotating buckle is rotationally clamped with the safety helmet bottom buckle, the earmuff comprises a cup cover which is arranged on the rotating buckle through a flexible connecting support and provided with a sound transmission port, a cup pad arranged on an opening of the cup cover, a tact switch and an elastic piece arranged on the cup pad, an annular earmuff arranged on the elastic piece, a sound absorption cotton cover covered on the tact switch and the earmuff, and a decibel instrument, a vibration alarm and a main control chip which are arranged in the cup cover. The utility model adjusts the contact state of the contact and the ear pad of the tact switch before and after the worker wears the earmuff through the flexible connecting bracket and the elastic piece, and combines the decibel meter, the tact switch and the main control chip to control the starting and stopping of the vibration alarm, thereby playing the role of warning the worker of exceeding the standard of noise under the noise environment, forcing the worker to actively wear the earmuff, and having the advantages of reducing the environmental noise and avoiding the hearing fatigue.

Description

Alarm type safety helmet sound insulation earmuff

Technical Field

The utility model relates to the technical field of safety helmets, in particular to an alarm type safety helmet sound insulation earmuff.

Background

At present, the hearing safety of workers is seriously affected by a plurality of high-decibel operation environments, and the use of the sound-proof earmuffs with the guarantee is beneficial to reducing the possibility of harm of noise to the hearing of the workers. The sound-proof earmuff has the advantages that the sound-proof earmuff has obvious noise reduction effect, plays an effective protection role on ear hearing, and can reduce the environmental noise by about 20-30 dB. Studies have shown that when a person is in a noisy environment for a short period of time, the ear can cause a short-term hearing loss even when away from the noisy environment, but when returning to a quiet environment, a short period of time can be allowed to recover, a phenomenon known as auditory adaptation. If the hearing-aid device works in a stronger noise environment without protection for a long time, the recovery of hearing sensitivity is prolonged after leaving the noise environment, and hearing can be recovered after several hours or more than ten hours, and the hearing-aid device can recover hearing loss, which is called hearing fatigue, and hearing function recovery insufficiency is caused along with the aggravation of the hearing fatigue.

Chinese patent publication No. CN206714185U discloses a helmet with earmuffs, comprising: the safety helmet is characterized in that buckling grooves are respectively formed in two sides of the safety helmet; the side part of the bottom buckle is provided with a buckle piece mutually matched with the buckle groove, and the middle part of the bottom buckle is provided with an arc-shaped clamping groove; the outer edge of the bottom of the rotating buckle is provided with a limiting ring base which is rotationally clamped with the clamping groove; the telescopic belt is hinged on the rotating buckle in a swinging way; the ear belt is in sliding sleeve joint with the telescopic belt, and the end part of the ear belt is connected with the earmuff.

The prior art solutions described above have the following drawbacks: above-mentioned safety helmet is through setting up rotatable earmuff to with the earmuff can the fastening ear or leave the ear, directly weaken the noise in people's ear department, but the worker receives self hearing and bad work habit influence, is difficult to perceive that self is in the noise environment, and takes the earmuff, this just leads to the earmuff to not play anticipated guard action. In general, noise below 85 db does not harm hearing, and danger may occur above 85 db, and statistics indicate that the incidence of deafness is obviously increased in a noise environment above 90 db when working for a long time, and noise fatigue is prevented first for preventing noise deafness, so that increasing the noise exceeding alarm function is important for protecting the health of workers.

Disclosure of Invention

The utility model aims to solve the problems of the prior art and provides the sound-insulation earmuff of the alarm type safety helmet, which has the advantages of reducing environmental noise and avoiding auditory fatigue by alarming when the noise exceeds the standard and forcing workers to actively wear the earmuff.

The above object of the present utility model is achieved by the following technical solutions:

the utility model provides an alarm type safety helmet sound insulation earmuff, includes the safety helmet end detain, with the rotation knot of the rotation block of safety helmet end detain and earmuff, the earmuff include through flexible connection support set up in rotate detain on and have the cup cover of sound transmission mouth, set up in cup pad on the opening of cup cover, set up in dab switch and the elastic component on the cup pad, set up in annular ear pad on the elastic component, cover locate dab the cotton cover of sound absorption on switch and the ear pad, and set up in decibel meter, vibration alarm and the master control chip in the cup cover, the travel path of ear pad passes through dab the contact of switch, the signal input part of master control chip electrically connect in decibel meter and dab switch, signal output part electrically connect in vibration alarm.

Through the technical scheme, the earmuffs are arranged on the two sides of the safety helmet in advance through the bottom buckles of the safety helmet, when the safety helmet is used, the decibel meter is used for detecting noise decibels around the earmuffs through the sound transmission port and sending detection information to the main control chip, the main control chip compares the decibel value in the received detection information with a preset value (85 decibels), if the detection information is higher than the preset value, the main control chip controls the starting of the vibration alarm, and the vibration alarm transmits vibration to the heads of workers through the earmuffs and the safety helmet, so that a noise exceeding alarm effect can be achieved for the workers in a noise environment, and the workers are reminded of wearing the earmuffs; after the sound-absorbing cotton cover contacts the ears of a user, the contact of the tact switch can be further forced to move and contact the ear pads by utilizing the pre-pressure of the flexible connecting bracket, so that the vibration alarm is closed by the tact switch and the main control chip in sequence; in the process, the contact state of the contact and the ear pad of the tact switch before and after the worker wears the earmuff is adjusted through the flexible connecting support and the elastic piece, and the decibel meter, the tact switch and the main control chip are used for jointly controlling the starting and stopping of the vibration alarm, so that the noise exceeding alarm effect can be achieved for the worker in a noise environment, the worker is forced to actively wear the earmuff, and the device has the advantages of reducing environmental noise and avoiding hearing fatigue.

The utility model is further provided with: the flexible connecting support comprises a steel wire frame arranged on the rotating buckle, a clamping sleeve arranged on the steel wire frame, an inserting sheet inserted on the clamping sleeve and a connecting belt arranged on the inserting sheet, and the cup cover is arranged on the connecting belt.

Through adopting above-mentioned technical scheme, flexible connection support such as steel wire frame, cutting ferrule, inserted sheet, connecting band wholly adopt flexible material to constitute, have can rebound resilience ability, and the cooperation setting of cutting ferrule and inserted sheet is convenient for the dismouting of cup.

The utility model is further provided with: the clamping sleeve is provided with a plurality of strip-shaped openings which are arranged in parallel, and the inserting sheet is provided with a plurality of flexible strip-shaped blocks which are in scarf joint with the strip-shaped openings.

By adopting the technical scheme, the mounting stability of the inserting sheet on the clamping sleeve is improved.

The utility model is further provided with: the surface of the strip-shaped opening, which is close to the inserting sheet, is provided with a first guide surface, and the surface of the strip-shaped block, which is away from the inserting sheet, is provided with a second guide surface.

By adopting the technical scheme, the first guide surface is used for guiding the strip-shaped block to be separated from the strip-shaped opening, and the second guide surface is used for guiding the strip-shaped block to be inserted into the strip-shaped opening.

The utility model is further provided with: the elastic piece comprises a gasket arranged on the cup pad, a spring arranged on the gasket, a limiting tube sleeved on the spring, and a sliding block arranged on the limiting tube and connected to the ear pad in a sliding mode, and the ear pad is arranged on the spring.

By adopting the technical scheme, the elastic support effect can be achieved on the gasket, and the gasket and the contact of the tact switch can be kept separate under the condition of no external force by utilizing the pretightening effect of the spring.

The utility model is further provided with: the springs are provided in plurality along the circumference of the ear pad.

By adopting the technical scheme, the support device has a good support effect.

The utility model is further provided with: the spring is set as a compression spring.

By adopting the technical scheme, the elastic rubber has better elasticity.

The utility model is further provided with: the cross section of the ear pad is U-shaped and covers the spring and the limiting pipe, and the ear pad is provided with a sliding groove in sliding fit with the sliding block.

By adopting the technical scheme, the movement direction of the ear pad on the elastic piece can be limited, and the ear pad is prevented from being separated from the elastic piece.

The utility model is further provided with: at least two convex rings are respectively arranged on the peripheral surfaces of the two sides of the ear pad, a third guide surface is arranged on the surface, deviating from the gasket, of each convex ring, and annular grooves nested with the convex rings are formed in the sound-absorbing cotton cover.

By adopting the technical scheme, the sound-absorbing cotton cover is convenient to assemble and disassemble on the cup pad.

The utility model is further provided with: the vibration alarm is a passive electromagnetic buzzer.

Through adopting above-mentioned technical scheme, electromagnetic buzzer is one kind of buzzer, is different from piezoelectric buzzer, and electromagnetic buzzer is the electron annunciator that utilizes electromagnetic coil to the effect of buzzing piece to sound, is used for making sound production device for electronic product, can play sound, vibration dual alarm function.

In summary, the beneficial technical effects of the utility model are as follows: the contact state of the contact and the ear pad of the tact switch before and after the worker wears the earmuff is adjusted through the flexible connecting support and the elastic piece, and the decibel meter, the tact switch and the main control chip are used for jointly controlling the starting and stopping of the vibration alarm, so that the noise exceeding alarm effect can be achieved on the worker in a noise environment, the worker is forced to actively wear the earmuff, and the earmuff has the advantages of reducing environmental noise and avoiding hearing fatigue.

Drawings

FIG. 1 is a schematic illustration of the connection between the sound-insulating earmuffs and the helmets of the alarm helmets of the present utility model.

Fig. 2 is a schematic diagram of the sound-proof earmuff structure of the alarm type safety helmet.

Fig. 3 is a schematic cross-sectional view of the sound-insulating earmuff of the alarm helmet of the utility model.

Fig. 4 is an enlarged partial schematic view of the portion a in fig. 3.

Fig. 5 is a partially enlarged schematic view of the portion B in fig. 3.

In the figure, 1, a safety helmet bottom button; 2. a rotary buckle; 3. ear muffs; 31. a cup cover; 32. a cup pad; 33. touching the switch; 34. an elastic member; 341. a gasket; 342. a spring; 343. a limiting tube; 344. a slide block; 35. ear pads; 351. a chute; 352. a convex ring; 353. a third guide surface; 36. a sound absorbing cotton cover; 361. an annular groove; 37. a decibel meter; 38. a vibration alarm; 39. a main control chip; 4. a flexible connection bracket; 41. a steel wire frame; 42. a cutting sleeve; 43. a strip-shaped opening; 431. a first guide surface; 44. inserting sheets; 45. a bar block; 451. a second guide surface; 46. and (5) connecting the belts.

Detailed Description

The utility model will be further described with reference to the drawings and detailed description in order to make the technical means, the creation characteristics, the achievement of the objects and the functions of the utility model more clear and easy to understand.

Referring to fig. 1-3, the sound-proof earmuff for the alarm type safety helmet disclosed by the utility model comprises a safety helmet bottom buckle 1, a rotating buckle 2 which is rotationally clamped with the safety helmet bottom buckle 1, and an earmuff 3. The earmuff 3 comprises a cup cover 31 which is arranged on the rotary buckle 2 through a flexible connecting bracket 4 and provided with a sound transmission port, a cup pad 32 arranged on an opening of the cup cover 31, a tact switch 33 and an elastic piece 34 which are arranged on the cup pad 32, an annular ear pad 35 arranged on the elastic piece 34, a sound absorption cotton cover 36 covered on the tact switch 33 and the ear pad 35, a decibel meter 37 arranged in the cup cover 31, a vibration alarm 38 and a main control chip 39. The moving path of the ear pad 35 passes through the contact of the tact switch 33, the signal input end of the main control chip 39 is electrically connected to the decibel meter 37 and the tact switch 33, and the signal output end is electrically connected to the vibration alarm 38, and the vibration alarm 38 is a passive electromagnetic buzzer.

The earmuff 3 is installed on the two sides of the helmet through the helmet bottom buckle 1 in advance, when the helmet is used, the decibel meter 37 is used for detecting noise decibels around the earmuff 3 through the sound transmission port and sending detection information to the main control chip 39, the main control chip 39 compares the decibel value in the received detection information with a preset value (85 decibels), if the received detection information is higher than the preset value, the main control chip 39 controls the vibration alarm 38 to be started, and the vibration alarm 38 transmits vibration to the head of a worker through the earmuff 3 and the helmet, so that a noise exceeding alarm effect can be achieved on the worker in a noise environment, and the worker is reminded of wearing the earmuff 3. After the sound-absorbing cotton cover 36 contacts the ears of a user, the pre-pressure of the flexible connecting support 4 can be utilized to further force the contacts of the tact switch 33 to move and contact the ear pads 35, so that the vibration alarm 38 is closed through the tact switch 33 and the main control chip 39 in sequence, if the worker takes off the ear covers 3, the pre-tightening effect of the elastic piece 34 can be utilized to force the contacts of the tact switch 33 to move and separate from the ear pads 35, and the vibration alarm 38 can continue to carry out vibration alarm, so that the worker is forced to actively wear the ear covers 3, and the sound-absorbing cotton cover has the advantages of reducing environmental noise and avoiding hearing fatigue.

Referring to fig. 3 and 4, the flexible connection bracket 4 includes a wire frame 41 provided on the rotary buckle 2, a ferrule 42 provided on the wire frame 41, three strip-shaped openings 43 provided on the ferrule 42 in parallel, an insertion sheet 44 inserted on the ferrule 42, a flexible strip-shaped block 45 provided on the insertion sheet 44 and engaged with the strip-shaped openings 43, and a connection belt 46 provided on the insertion sheet 44. The cup cover 31 is disposed on the connecting belt 46, a first guiding surface 431 is disposed on a surface of the strip-shaped opening 43, which is close to the inserting sheet 44, the first guiding surface 431 is used for guiding the strip-shaped block 45 to separate from the strip-shaped opening 43, a second guiding surface 451 is disposed on a surface of the strip-shaped block 45, which is away from the inserting sheet 44, and the second guiding surface 451 is used for guiding the strip-shaped block 45 to be inserted into the strip-shaped opening 43. The whole flexible connection support 4 such as the steel wire frame 41, the clamping sleeve 42, the inserting sheet 44, the connecting belt 46 and the like is made of flexible materials, the flexible connection support has rebound performance, and the clamping sleeve 42 and the inserting sheet 44 are matched to facilitate the disassembly and assembly of the cup cover 31.

Referring to fig. 3 and 5, the elastic member 34 includes a gasket 341 disposed on the coaster 32, a spring 342 disposed on the gasket 341, a stopper tube 343 sleeved on the spring 342, and a slider 344 disposed on the stopper tube 343 and slidably coupled to the ear pad 35. The springs 342 are compression springs, and a plurality of the springs 342 are disposed along the circumferential direction of the ear pad 35, and the ear pad 35 is disposed on the springs 342. These springs 342 can elastically support the washer 341, and the washer 341 can be kept separate from the contact of the tact switch 33 by the pretensioning action of the springs 342 without an external force.

The cross section of the ear pad 35 is U-shaped and covers the spring 342 and the limiting tube 343, and the ear pad 35 is provided with a sliding groove 351 in sliding fit with the sliding block 344, and the sliding groove 351 and the sliding block 344 can limit the moving direction of the ear pad 35 on the elastic piece 34 to avoid the ear pad 35 from separating from the elastic piece 34. In addition, in order to facilitate the assembly and disassembly of the sound-absorbing cotton cover 36 on the cup pad 32, two convex rings 352 are respectively arranged on the peripheral surfaces of two sides of the ear pad 35, a third guide surface 353 is arranged on the surface of the convex rings 352, which is away from the gasket 341, and an annular groove 361 nested with the convex rings 352 is formed in the sound-absorbing cotton cover 36.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. The utility model provides an alarm type safety helmet sound insulation earmuff, detains (1), with the rotation knot (2) of the rotatory block of safety helmet end knot (1) and earmuff (3), its characterized in that: the earmuff (3) comprises a cup cover (31) which is arranged on the rotary buckle (2) through a flexible connecting support (4) and provided with a sound transmission port, a cup pad (32) arranged on an opening of the cup cover (31), a tact switch (33) and an elastic piece (34) arranged on the cup pad (32), an annular earmuff (35) arranged on the elastic piece (34), a sound-absorbing cotton cover (36) covered on the tact switch (33) and the earmuff (35), a decibel meter (37) arranged in the cup cover (31), a vibration alarm (38) and a main control chip (39), wherein a moving path of the earmuff (35) passes through a contact of the tact switch (33), and a signal input end of the main control chip (39) is electrically connected with the decibel meter (37) and the tact switch (33) and a signal output end of the main control chip (39).

2. An alarm-type safety helmet sound-insulating earmuff according to claim 1, wherein: the flexible connecting support (4) comprises a steel wire frame (41) arranged on the rotating buckle (2), a clamping sleeve (42) arranged on the steel wire frame (41), an inserting sheet (44) inserted on the clamping sleeve (42), and a connecting belt (46) arranged on the inserting sheet (44), and the cup cover (31) is arranged on the connecting belt (46).

3. An alarm-type safety helmet sound-insulating earmuff according to claim 2, wherein: a plurality of strip-shaped openings (43) which are arranged in parallel are formed in the clamping sleeve (42), and a plurality of flexible strip-shaped blocks (45) which are in scarf joint with the strip-shaped openings (43) are arranged on the inserting pieces (44).

4. A sound-insulating earmuff for alarm helmets according to claim 3, wherein: the surface of the strip-shaped opening (43) close to the inserting sheet (44) is provided with a first guide surface (431), and the surface of the strip-shaped block (45) deviating from the inserting sheet (44) is provided with a second guide surface (451).

5. An alarm-type safety helmet sound-insulating earmuff according to claim 1, wherein: the elastic piece (34) comprises a gasket (341) arranged on the cup pad (32), a spring (342) arranged on the gasket (341) and a limiting tube (343) sleeved on the spring (342), and a sliding block (344) arranged on the limiting tube (343) and connected onto the ear pad (35) in a sliding mode, and the ear pad (35) is arranged on the spring (342).

6. An alarm hat sound-insulating earmuff according to claim 5, wherein: the springs (342) are provided in plurality along the circumferential direction of the ear pad (35).

7. An alarm hat sound-insulating earmuff according to claim 5, wherein: the spring (342) is configured as a compression spring.

8. An alarm hat sound-insulating earmuff according to claim 5, wherein: the cross section of the ear pad (35) is U-shaped and covers the spring (342) and the limiting pipe (343), and a sliding groove (351) which is in sliding fit with the sliding block (344) is formed in the ear pad (35).

9. The alarm hat sound-insulating earmuff of claim 8, wherein: at least two convex rings (352) are respectively arranged on the peripheral surfaces of the two sides of the ear pad (35), a third guide surface (353) is arranged on the surface, deviating from the gasket (341), of the convex rings (352), and annular grooves (361) nested with the convex rings (352) are formed in the sound-absorbing cotton cover (36).

10. An alarm-type safety helmet sound-insulating earmuff according to claim 1, wherein: the vibration alarm (38) is a passive electromagnetic buzzer.