Adjustable liner for explosive ordnance disposal helmet

Abstract

The utility model relates to the technical field of accessories of explosive-handling helmets, and discloses an adjustable liner of an explosive-handling helmet, which comprises a rear liner, an air bag is fixedly connected to the surface of the front side of the rear liner, a front liner is fixedly connected to the front side of the rear liner, an air nozzle is arranged above the rear liner, and a hook-and-loop fastener is fixedly connected to the back of the rear liner. The rear liner and the front liner are both of a fan-shaped structure, and the front end of the air bag penetrates through the front liner. According to the utility model, through the cooperation of the rear liner, the air bag, the front liner, the internal air pipe, the air tap and the hook-and-loop fasteners, a certain space distance is formed between the head and the adjustable lining, the ventilation of the head can be kept, the comfort of operation is improved, and the air bag arranged on the sector-shaped surface can further absorb explosion shock waves, so that the safety of the head is improved. The adjustable cushion is installed in the explosive-handling helmet and can be adjusted according to the sizes of the head shapes of different persons, and the universality of the helmet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of accessories of bomb disposal helmets, in particular to an adjustable liner for bomb disposal helmets. Background Art

[0002] The bomb disposal helmet is a key part of the bomb disposal suit. It provides all-round protection for bomb disposal personnel to resist the overpressure, fragments and shock waves generated by the explosion. The bomb disposal helmet liner is an important component of the bomb disposal helmet. Its function is to absorb and slow down the impact energy when the explosion occurs, protecting the bomb disposal personnel's head from injury.

[0003] The padding used in existing bomb disposal helmets usually adopts a multi-layer structure design. The outer layer is a polyurethane foam with high hardness and small deformation, and the inner layer uses a low-density sponge pad with good breathability. It helps to absorb the energy of high-speed impact and delay the impact time, thereby improving the impact protection capability of the helmet. The padding is generally set with different thicknesses to adapt to the head size of different users.

[0004] During actual use, the padding of the above-mentioned bomb disposal helmet usually fits tightly with the scalp of the bomb disposal personnel to ensure the protective effect of the bomb disposal personnel's head. During long-term bomb disposal operations, this tight fit will lead to a stuffy feeling, easily causing sweating, and sweat is not easy to evaporate, which may breed bacteria, causing discomfort to the bomb disposal personnel and may even affect the safety of the bomb disposal operation. At the same time, the padding is limited by the existing size and is difficult to fit completely with the bomb disposal personnel's head, which will affect the protective effect of the padding. For this reason, an adjustable padding for a bomb disposal helmet is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an adjustable liner for a bomb disposal helmet, aiming to improve the problem in the prior art that the liner of the bomb disposal helmet has poor air permeability and is difficult to fit completely with the head of the bomb disposal personnel, resulting in reduced adaptability and protection.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an adjustable pad for a bomb disposal helmet, comprising a rear pad, the front surface of the rear pad is fixedly connected to an airbag, the front side of the rear pad is fixedly connected to the front pad, an air nozzle is provided above the rear pad, and the back of the rear pad is fixedly connected to a Velcro.

[0007] As a further description of the above technical solution:

[0008] The rear pad and the front pad are both arranged in a fan-shaped structure.

[0009] As a further description of the above technical solution:

[0010] The front end of the airbag penetrates the front cushion.

[0011] As a further description of the above technical solution:

[0012] The front pad is fixedly connected to the outer wall of the airbag.

[0013] As a further description of the above technical solution:

[0014] The air bags are connected via internal air tubes.

[0015] As a further description of the above technical solution:

[0016] The internal air tube is located in the gap between the rear cushion and the front cushion.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the air nozzle passes through the rear pad, and the bottom end of the air nozzle is fixedly connected to the upper surface of the uppermost air bag among the plurality of air bags.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the present invention, the contact area between the head and the lining is reduced by coordinating the rear lining, airbag, front lining, internal air tube, air nozzle and Velcro, so that there is a certain space distance between the head and the adjustable lining, which can maintain ventilation of the head and improve the comfort of operation. At the same time, the airbag arranged on the fan-shaped surface can further absorb the explosion shock wave, greatly reducing the damage of the powerful shock wave to the human brain and improving the protective effect on the head of bomb disposal personnel.

[0021] 2. In the present invention, the adjustable pad is installed in the bomb disposal helmet and can be adjusted according to the size of the head of different personnel, thereby improving the protective effect on the head of the bomb disposal personnel, meeting the wearing needs of the vast majority of personnel, reducing the types and numbers of helmets with different sizes and specifications, and improving the versatility of the helmet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an adjustable liner for an explosive disposal helmet proposed in the present invention;

[0023] Figure 2 This is a schematic diagram of the back side of an adjustable liner for an explosive disposal helmet proposed in the present invention;

[0024] Figure 3 The utility model proposes an adjustable liner for an explosive disposal helmet. Figure 1 Schematic diagram at part A;

[0025] Figure 4This is a schematic diagram of an adjustable liner of an explosive disposal helmet proposed in the present invention after removing the front liner;

[0026] Figure 5 The utility model is a schematic diagram of an inflatable ball used to inflate an adjustable liner of a bomb disposal helmet.

[0027] Legend:

[0028] 1. Rear pad; 2. Airbag; 3. Front pad; 4. Internal air tube; 5. Air nozzle; 6. Velcro. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 3 The front pad 3 is fixedly connected to the front surface of the airbag 2, and the rear pad 1 is fixedly connected to the front surface of the airbag 2. The number of the airbags 2 is several, and the airbags 2 are fixedly connected to the front surface of the rear pad 1 in a fan-shaped array. The heights of all the airbags 2 are set to the same. The airbags 2 set can fully contact the head of the bomb disposal personnel. The front end of the airbag 2 passes through the front pad 3. When the airbag 2 is inflated, the rear pad 1 and the front pad 3 can be separated from the head of the bomb disposal personnel, so that there is a certain space distance between the head of the bomb disposal personnel and the adjustable lining, which can maintain ventilation of the head. The front side of the rear pad 1 is fixedly connected to the front pad 3, and the front pad 3 is fixedly connected to the outer wall of the airbag 2. The rear pad 1 and the front pad 3 constitute a complete padding structure, and the rear pad 1 and the front pad 3 are both fan-shaped structures.

[0031] The protruding corners of the whole formed by the rear pad 1 and the front pad 3 can be bent individually, so that they can better adapt to the inner wall of the bomb disposal helmet, making the padding fit more closely, thereby improving the comfort of use for bomb disposal personnel. The back of the protruding side of the rear pad 1 is fixedly connected with a Velcro 6, which can be bonded to the Velcro surface pre-fixed on the inner wall surface of the bomb disposal helmet to fix the padding, making it easy to install and remove.

[0032] Reference Figure 4, several airbags 2 are connected by internal air tubes 4, and the gas in adjacent airbags 2 can circulate through the internal air tubes 4. When filling gas into one airbag 2, it can quickly diffuse to other airbags 2 through the internal air tubes 4, and the inflation operation of all airbags 2 can be completed quickly and completely. The internal air tube 4 is located in the gap between the rear pad 1 and the front pad 3. The rear pad 1 and the front pad 3 can cover and protect the outside of the internal air tube 4. An air nozzle 5 is provided above the rear pad 1, and the bottom end of the air nozzle 5 passes through the rear pad 1. The bottom end of the air nozzle 5 is fixedly connected to the upper surface of the uppermost airbag 2 among the several airbags 2, and the airbag 2 can be inflated by connecting the inflation structure through the air nozzle 5.

[0033] You can use an inflatable ball (see the attached figure in the instruction manual) Figure 5 (as shown) connect the air nozzle 5 to inflate the inside of the airbag 2. The inflatable ball includes a rubber ball, an trachea and an air needle. The outside of the trachea is fixedly connected to an air release valve. After inserting the air needle of the inflatable ball into the air nozzle 5, you can start pressing the rubber ball to inflate the airbag 2. At the same time, the air release valve arranged on the outside of the trachea can also deflate the inside of the airbag 2. Adjust the overall air pressure of the adjustable cushion. When you feel comfortable wearing it, you can pull out the air needle and stop inflating.

[0034] The working principle is to inflate the airbag 2 through the inflatable ball connected to the air nozzle 5. When the airbag 2 expands to an appropriate degree, the air needle is pulled out to stop inflation. It can be adjusted according to the individual operator. At this time, the pad is placed inside the bomb disposal helmet, so that the Velcro 6 is bonded to the Velcro surface pre-fixed on the inner wall surface of the bomb disposal helmet to fix the pad. Subsequently, when the bomb disposal personnel wear the helmet, the airbag 2 can reduce the contact area between the head and the lining, so that there is a certain space distance between the head and the adjustable lining to keep the head ventilated. At the same time, when an accident occurs during the bomb disposal process, the fan-shaped airbag 2 can absorb the explosion shock wave, reduce the damage of the shock wave to the human brain, and improve the protection effect. At the same time, the expansion degree of the airbag 2 can be adjusted according to the size of the head of different people, so that the adjustable pad can fit the head of the bomb disposal personnel completely, thereby improving the protection effect on the head of the bomb disposal personnel and improving the versatility of the helmet.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable liner for an explosive disposal helmet, comprising a rear liner (1), characterized in that: The front surface of the rear pad (1) is fixedly connected to an airbag (2), the number of the airbags (2) is several, and the several airbags (2) are fixedly connected to the front surface of the rear pad (1) in a fan-shaped array, the front side of the rear pad (1) is fixedly connected to the front pad (3), an air nozzle (5) is provided above the rear pad (1), and a Velcro (6) is fixedly connected to the back of the rear pad (1).

2. The adjustable liner for an explosive disposal helmet according to claim 1, characterized in that: The rear pad (1) and the front pad (3) are both arranged in a fan-shaped structure.

3. The adjustable liner for an explosive disposal helmet according to claim 1, characterized in that: The front end of the airbag (2) passes through the front cushion (3).

4. The adjustable liner for an explosive disposal helmet according to claim 1, characterized in that: The front pad (3) is fixedly connected to the outer wall of the airbag (2).

5. The adjustable liner for an explosive disposal helmet according to claim 1, characterized in that: The plurality of air bags (2) are connected via internal air tubes (4).

6. The adjustable liner for an explosive disposal helmet according to claim 5, characterized in that: The internal air pipe (4) is located in the gap between the rear liner (1) and the front liner (3).

7. The adjustable liner for an explosive ordnance disposal helmet according to claim 1, characterized in that: The bottom end of the air nozzle (5) passes through the rear pad (1), and the bottom end of the air nozzle (5) is fixedly connected to the upper surface of the uppermost air bag (2) among the plurality of air bags (2).

Images