CN216853938U - A hard hat for hearing protection and noise reduction on construction sites - Google Patents

Abstract

The utility model relates to a safety helmet for hearing protection and noise reduction in construction sites, comprising a cap body, at least two earplug holes are opened on the outer side of the cap body, and an earplug cover matched with the earplugs is arranged in the earplug holes; The body is provided with a flexible cord for connecting two earplugs; it also includes a sealing plug for closing the opening of the earplug cover. An earplug sleeve for accommodating earplugs is arranged in the earplug hole of the utility model. The earplugs are arranged on the cap body through a flexible rope. When the earplugs are not used in a normal state, the two earplugs can be inserted into the earplug sleeves, and the earplugs are blocked by a sealing plug. The earplugs have a dust-proof effect on the earplugs; when the staff needs to use the earplugs, they should remove the earplugs for use, and block the earplug sleeves with sealing plugs to prevent dust from entering the earplugs sleeves.

Description

A hard hat for hearing protection and noise reduction on construction sites

technical field

The utility model relates to the technical field of construction safety products, in particular to a safety helmet used for hearing protection and noise reduction in construction sites.

Background technique

Noise is the "culprit" that affects the work and normal peaceful life of construction sites, and its harm is potential and long-term.

Noise-induced hearing damage is damage to the sensory hair cells (sensory hair cells) of the ear's acoustic organ (cochlea), and once the sensory hair cells are damaged, they will never recover. Sensory hair cells that sense high frequencies are most vulnerable to noise damage. Therefore, most people's hearing has been damaged by noise. If they do not have a hearing test, they are often unconscious until they lose their hearing and cannot communicate with others, but it is too late. Early hearing loss occurs most easily at 4000 Hz and is bilaterally symmetrical (4Kdip). Patients are mainly unable to hear soft high-frequency sounds. Hearing loss is also progressive unless suddenly exposed to very loud sounds such as gunshots, firecrackers, etc. Noise causes cardiovascular damage Acute noise exposure often causes high blood pressure, and the secretion of adrenal hormones increases at 100 decibels for ten minutes, and the sympathetic nerves are excited. Therefore, noise reduction is an inevitable requirement for protecting workers.

The traditional method of noise reduction on construction sites is for construction workers to wear earplugs to reduce noise damage to their ears. However, the construction site environment is poor, and most construction workers take earplugs with their bare hands, causing pollution to the earplugs. In order to facilitate use and reduce the cost of use, most construction workers recycle the contaminated earplugs. Frequent use of contaminated earplugs will cause ear infection.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a safety helmet for hearing protection and noise reduction in construction sites, which is used to reduce the phenomenon of earplugs being lost and polluted.

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a safety helmet for hearing protection and noise reduction in construction sites, comprising a hat body, at least two earplug holes are opened on the outside of the hat body, and inside the earplug holes are provided with Earplug sleeves that fit the earplugs;

The cap body is provided with a flexible cord for connecting the two earplugs;

Also included is a sealing plug for closing the opening of the earplug sleeve.

There are earplug holes on the outside of the cap body, and earplug sleeves for accommodating earplugs are arranged in the earplug holes. The earplugs are set on the cap body through a flexible rope. When the earplugs are not used in the normal state, the two earplugs can be inserted into the earplug sleeves and sealed The earplugs are blocked by the plug to prevent dust from entering the earplugs; when the staff needs to use the earplugs, remove the earplugs for use, and seal the plugs to block the earplugs to prevent dust from entering the earplugs; the flexible rope can Use a thin nylon rope or a rubber material rope, which is convenient for the sealing plug to press the flexible rope to block the earplug sleeve; the earplug holes can be provided with multiple earplug holes, and the earplug holes are set close to the left and right ears of the human body, which is convenient for the staff. When taking the earplugs, you can also set several positions of the earplug holes according to the length of the staff's arm and usage habits.

Preferably, the cap body is provided with a plurality of rope guide holes, and the flexible ropes pass through the rope guide holes in turn and are connected to two earplugs, and the two earplugs are respectively close to the ears on both sides of the human body.

The two earplugs are connected by a flexible rope. The rope guide hole seat is used to set the flexible rope on the cap body to prevent the earplugs from being lost, and it is easy to take and use the earplugs. The rope guide hole seat can be set on the inside or outside of the cap body.

Preferably, two ends of the flexible rope are respectively provided with bolts, and one end of the rod cap of the earplug is provided with threaded holes adapted to the bolts.

The earplugs include a rod cap and an earplug head that are fixed as a whole. The earplugs are in the prior art, and the cap bolts are miniature bolts. The bolts are threadedly connected to the end of the rod cap away from the earplug head, which is convenient for replacing the earplugs that have been used for a long time. The rope is removed and all replaced, which improves the efficiency of replacing earplugs and reduces the cost of use.

Preferably, the rope guide hole seat is provided with a through hole, and the flexible rope passes through the through hole.

Preferably, two ends of the flexible rope are respectively provided with elastic clips, and the rod cap of the earplug is provided with clips matching the elastic clips.

Preferably, the elastic clamping piece includes a cylindrical rod, the cylindrical rod is fixed with an annular elastic boss along the circumferential direction, the inner wall of the clamping groove is fixed with an annular elastic bar along the circumferential direction, and the outer diameter of the annular elastic boss is fixed along the circumferential direction. It is between 0.5 and 1 mm larger than the outer diameter of the annular elastic bar.

The annular elastic boss and the annular elastic retaining bar are made of elastic materials. The annular elastic boss of the cylindrical rod is rigidly inserted into the inner position of the annular elastic retaining bar in the snap groove. The outer diameter of the annular elastic boss is larger than that of the annular elastic retaining bar. There is friction between the boss and the annular elastic retaining strip, so that the annular elastic boss is clamped in the clamping groove, and the elastic clamping piece can be pulled out through a large force, which is convenient for replacing the earplugs that have been used for a long time without removing the earplugs. Remove and replace all the flexible cords, improve the efficiency of replacing earplugs, and reduce the cost of use.

Preferably, the sealing plug is connected to one side of the earplug sleeve.

The sealing plug is connected to one side of the earplug sleeve, so that the sealing plug can be tightly closed to the opening of the earplug head when using the earplug.

Compared with the prior art, the beneficial effect of the present invention is that: an earplug sleeve for accommodating earplugs is arranged in the earplug hole, the earplugs are arranged on the cap body through a flexible rope, and when the earplugs are not used in a normal state, the two earplugs can be inserted into the earplug sleeves inside the earplugs, and plug the earplug sleeves with the sealing plug, which has a dust-proof effect on the earplugs; when the staff needs to use the earplugs, remove the earplugs for use, and block the earplug sleeves with the sealing plugs to prevent dust from entering the earplugs sleeve. Inside;

The flexible rope can be selected from a thinner nylon rope or a rubber material rope, which is convenient for the sealing plug to press the flexible rope to block the earplug sleeve; the earplug includes a fixed rod cap and an earplug head, the earplug is in the prior art, and the cap bolt is Micro-bolts, bolts are threadedly connected to the end of the rod cap away from the earplug head, which is easy to replace the earplugs that have been used for a long time. It is not necessary to remove the earplugs and the flexible cord and replace them all, which improves the efficiency of replacing the earplugs and reduces the cost of use.

Description of drawings

Accompanying drawing 1 is the utility model human body wearing schematic diagram;

Accompanying drawing 2 is the cap body structure schematic diagram of the present utility model;

3 is a schematic diagram of the position of the rope guide hole seat of the present invention;

4 is an enlarged schematic view of the structure of the rope guide hole seat of the present invention;

5 is a schematic diagram of the connection of the earplug cover, the earplug and the flexible rope of the present invention;

6 is a schematic diagram of the connection structure of Embodiment 1 of the present invention;

FIG. 7 is a schematic diagram of the connection structure of the second embodiment of the present invention.

Symbols shown in the drawings: 1, cap body; 2, ear plug hole; 3, ear plug cover; 4, flexible rope; 5, sealing plug; 6, rope guide hole seat; 601, through hole; 7, ear plug; 701 , rod cap; 8, bolts; 9, threaded holes; 10, elastic clips; 101, cylindrical rods; 102, annular elastic bosses; 11, snap grooves; 12, annular elastic bars.

Detailed ways

The present utility model will be further described below in conjunction with specific embodiments. As shown in Figures 1 to 7, Embodiment 1: a safety helmet for hearing protection and noise reduction in construction sites, comprising a cap body 1, and an outer side of the cap body 1 is provided There are at least two earplug holes 2, and the earplug holes 2 are provided with earplug sleeves 3 that are adapted to the earplugs 7; the cap body 1 is provided with a flexible cord 4 for connecting the two earplugs 7; It also includes a closed earplug sleeve 3 The sealing plug 5 of the opening, the sealing plug 5 is connected to the side of the earplug sleeve 3, and the sealing plug 5 is connected to the side of the earplug sleeve 3, so that the sealing plug 5 can be tightly closed on the opening of the earplug head when using the earplug 7. .

The outer side of the cap body 1 of the present invention is provided with two earplug holes 2. The earplug holes 2 are provided with earplug sleeves 3 for accommodating earplugs. The earplugs are arranged on the cap body 1 through a flexible cord 4. When the earplugs 7 are not used in the normal state , the two earplugs 7 can be inserted into the earplug sleeve 3, and the earplug sleeve 3 is blocked by the sealing plug 5, which has a dust-proof effect on the earplugs 7; when the staff needs to use the earplugs 7, remove the earplugs 7 for use, And plug the earplug cover 3 through the sealing plug 5 to prevent dust from entering the earplug cover 3; the flexible rope 4 can choose a thinner nylon rope or a rubber material rope, which is convenient for the sealing plug 5 to press the flexible rope 4 to block the earplug cover. 3; There can be multiple earplug holes 2, and the earplug holes 2 are set close to the left and right ears of the human body, which is convenient for the staff to take the earplugs 7, and the number of earplug holes 2 can also be set according to the length of the staff’s arms and usage habits. several locations.

The cap body 1 is provided with a plurality of rope guide holes 6, and the flexible rope 4 passes through the rope guide holes 6 in turn and is connected to two earplugs 7, and the two earplugs 7 are respectively close to the ears on both sides of the human body.

The two earplugs 7 are connected by a flexible rope 4, and a plurality of rope guide holes 6 are distributed on the inside or outside of the cap body 1. In order to achieve an aesthetic effect, the present invention sets the rope guide holes 6 on the inner side of the cap body 1. The guide hole seat 6 is used to set the flexible rope 4 on the cap body 1. The rope guide hole seat 6 is provided with a through hole 601, and the flexible rope 4 passes through the through hole 601 to prevent the flexible rope 4 and the earplugs from being lost, and is easy to take and use. Earplugs 7.

The earplug 7 includes a rod cap and an earplug head that are fixed as a whole, and the earplug 7 is in the prior art. Both ends of the flexible rope 4 are respectively provided with bolts 8, one end of the rod cap 701 of the earplug 7 is provided with a threaded hole 9 that is adapted to the bolt 8, the cap bolt 8 is a miniature bolt 8, and the bolt 8 and the rod cap are away from the end of the earplug head. The threaded connection is convenient for replacing the earplugs 7 that have been used for a long time. It is not necessary to remove the earplugs 7 and the flexible cord 4 and replace them completely, which improves the efficiency of replacing the earplugs 7 and reduces the use cost.

Embodiment 2: The difference between Embodiment 1 and Embodiment 2 lies in the connection between the earplugs and the two ends of the flexible cord 4. The two ends of the flexible rope 4 in Embodiment 2 are respectively provided with elastic clips 10, and the rods of the earplugs 7 The cap 701 is provided with a snap-fit slot 11 adapted to the elastic snap-fit 10 .

The elastic clamping piece 10 includes a cylindrical rod 101, the cylindrical rod 101 is fixed with an annular elastic boss 102 in the circumferential direction, the inner wall of the clamping groove 11 is fixed with an annular elastic bar 12 in the circumferential direction, and the annular elastic boss 12 is fixed in the circumferential direction. The outer diameter of 102 is 1 mm larger than the outer diameter of the annular elastic bar 12 .

The annular elastic boss 102 and the annular elastic retaining bar 12 are both made of elastic material. The annular elastic boss 102 of the cylindrical rod 101 is rigidly inserted into the inner position of the annular elastic retaining bar 12 in the clamping groove 11. The outer diameter of the annular elastic boss 102 is larger than The annular elastic retaining bar 12, the annular elastic boss 102 and the annular elastic retaining bar 12 have frictional force, so that the annular elastic boss 102 is clamped in the clamping groove 11, and the elastic clamping piece 10 can be pulled out by a large force. It is convenient to replace the earplugs 7 that have been used for a long time, and it is not necessary to remove the earplugs 7 and the flexible cord 4 and replace them completely, which improves the efficiency of replacing the earplugs 7 and reduces the use cost.

It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the limited scope of the present application.

Claims (7)

1. A safety helmet for hearing protection and noise reduction in construction sites, comprising a cap body (1), characterized in that: the outer side of the cap body (1) is provided with at least two earplug holes (2), the An earplug cover (3) adapted to the earplug (7) is provided in the earplug hole (2); The cap body (1) is provided with a flexible cord (4) for connecting two earplugs (7); It also includes a sealing plug (5) for closing the opening of the earplug cover (3). 2. A safety helmet for hearing protection and noise reduction in construction sites according to claim 1, characterized in that: the hat body (1) is provided with a plurality of rope guide holes (6), the The flexible rope (4) is connected to two earplugs (7) through the rope guide hole seat (6) in sequence, and the two earplugs (7) are respectively close to the ears on both sides of the human body. 3. A safety helmet for hearing protection and noise reduction in construction sites according to claim 1 or 2, characterized in that: both ends of the flexible rope (4) are respectively provided with bolts (8), and the One end of the rod cap (701) of the earplug (7) is provided with a threaded hole (9) adapted to the bolt (8). 4. A safety helmet for hearing protection and noise reduction in construction sites according to claim 2, characterized in that: the rope guide hole seat (6) is provided with a through hole (601), and the flexible rope ( 4) Pass through through hole (601). 5. A safety helmet for hearing protection and noise reduction in construction sites according to claim 1 or 2, characterized in that: both ends of the flexible rope (4) are respectively provided with elastic clips (10) , the rod cap (701) of the earplug (7) is provided with a snap-fit groove (11) adapted to the elastic snap-fit (10). 6. A safety helmet for hearing protection and noise reduction in construction sites according to claim 5, characterized in that: the elastic clip (10) comprises a cylindrical rod (101), and the cylindrical rod (101) is along the An annular elastic boss (102) is fixed in the circumferential direction, an annular elastic bar (12) is fixed on the inner wall of the snap groove (11) along the circumferential direction, and the outer diameter of the annular elastic boss (102) is larger than that of the annular elastic boss (102). The outer diameter of the elastic bar (12) is between 0.5 and 1 mm. 7 . The safety helmet for hearing protection and noise reduction in construction sites according to claim 1 , wherein the sealing plug ( 5 ) is connected to one side of the earplug cover ( 3 ). 8 .

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