Helmet shroud ring connecting structure with limiting function and helmet

Abstract

The utility model relates to the technical field of fire fighting and emergency rescue helmets, and discloses a helmet shroud connecting structure with a limiting function and a helmet, the helmet shroud connecting structure comprises a left side shroud, a right side shroud and a rear side shroud, the left side shroud and the right side shroud are rotatably connected to the surface of the rear side shroud, and each of the left side shroud and the right side shroud is composed of a side shroud, a connecting port, a connecting block, an expansion buckle and a short column. The rear side shroud ring is composed of a rear shroud ring body, an adjusting opening, a rotary connecting opening and a via hole. According to the helmet shroud ring connecting structure with the limiting function and the helmet, the expansion buckle with the rotational freedom degree is adopted, the two selectable shaft holes are in interference fit, and the three fixing points form a triangular stable structure, so that the problem that the shroud ring cannot be adjusted due to the difference of different head circumferences is effectively solved, and when the head is impacted, the shroud ring cannot be adjusted; the reasonable shroud ring connecting structure can assist the helmet in uniformly dispersing impact force. The impact force is transmitted to the whole helmet through the synergistic effect of the impact force and the shell of the helmet, local stress is reduced, damage to the head is reduced to the maximum extent, and the protection efficiency of the helmet is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire and rescue helmet technical field, concretely is a helmet headband connecting structure and helmet with limiting function. BACKGROUND

[0002] Fire fighting is a high-risk occupation, and the operation environment of firefighters is extremely complex and dangerous. The high temperature at the fire scene can reach thousands of degrees Celsius, the flame is rampant, and the smoke is diffused, which not only blocks the vision, but also threatens the collapse of building components and the falling of objects. In a chemical fire, toxic and harmful gas leakage may occur, which can corrode fire fighting equipment. The rescue scene is also complex. After earthquakes, landslides and other natural disasters, firefighters need to shuttle in the ruins, facing the risk of sharp objects scratching and colliding. When rescuing traffic accidents, the helmet is easily squeezed by external force in a small space. Such extreme environments require the helmet headband connecting structure to have high reliability to ensure that the helmet is always securely worn and provides continuous and effective protection for the head of the firefighter.

[0003] However, the existing technology still has the following shortcomings. The existing fire helmet headband is usually connected by simple plastic buckles. Under high temperature and strong external force impact, the plastic buckle is easily deformed and broken. For example, in large-scale fire fighting, the buckle may soften and fail due to long-term exposure to high temperatures, causing the helmet to loosen. Some metal buckles are high in strength, but they are prone to rust in humid environments, making it difficult to open and close, affecting use. At the same time, the traditional connecting structure is complicated to operate when wearing and adjusting. For example, some helmets require tools to adjust the length of the headband, which cannot be quickly prepared for emergency situations. Moreover, the adjustment process is not precise enough to adapt to the differences in head shape of different firefighters, affecting the wearing effect. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a helmet headband connecting structure with limiting function and a helmet to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the technical solution of the present application is as follows:

[0006] In a first aspect, the present application provides a helmet headband connecting structure with limiting function, which comprises left and right side headbands and a rear headband. The left and right side headbands are rotationally connected to the surface of the rear headband.

[0007] In one possible implementation of the present application, the left and right side headbands are composed of a side headband, a connecting port, a connecting block, an expansion buckle and a short column. The connecting port is arranged at one end of the side headband, the connecting block is fixedly connected to the other end of the side headband, the expansion buckle is arranged on the surface of the side headband, and the short column is fixedly connected to the surface of the side headband.

[0008] In a possible implementation of the present application, the rear side belt is composed of a rear belt, an adjusting opening, a rotating connecting opening and a through hole, the rear belt is rotatably connected to the surface of the side belt, the adjusting opening is arranged on the surface of the rear belt, the rotating connecting opening is arranged on the surface of the rear belt, and the through hole is arranged on the surface of the rear belt, facilitating connection with the left and right side belts.

[0009] In a possible implementation of the present application, the rear belt is clamped to the surface of the expansion buckle through the rotating connecting opening, facilitating connection adjustment and mutual adjustment between the left and right side belts and the rear belt.

[0010] In a possible implementation of the present application, the short column is clamped in the interior of the through hole, playing a main limiting connection role.

[0011] In a possible implementation of the present application, the through hole is arranged on the surface of the rear belt in an arc shape around the rotating connecting opening, facilitating adjustment connection during rotation adjustment.

[0012] In a possible implementation of the present application, at least two short columns are arranged, and the short columns are arranged on the surface of the side belt in an arc shape around the expansion buckle.

[0013] In a possible implementation of the present application, the short column is arranged in two, and the short column and the expansion buckle are arranged in a triangular shape, facilitating better stability during connection.

[0014] In a possible implementation of the present application, the short column is arranged in two, and the short column and the expansion buckle are arranged in a triangular shape, facilitating better stability during connection.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The headgear belt connecting structure with a limiting function and the headgear effectively solve the problem that the belt cannot be adjusted due to the difference in head circumference by adopting the expansion buckle with a rotating degree of freedom and the optional interference fit of two shaft hole through holes, and the three fixing points form a triangular stable structure.

[0017] 2. The headgear belt connecting structure with a limiting function and the headgear can assist the headgear to evenly disperse the impact force when the head is impacted, cooperates with the headgear shell to transmit the impact force to the entire headgear, reduces the local stress, maximizes the reduction of the damage to the head, and improves the protection performance of the headgear. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The utility model discloses an appearance structure schematic diagram shows

[0019] Figure 2 The utility model discloses an appearance structure schematic diagram shows Figure 1 The utility model discloses an appearance structure schematic diagram shows

[0020] Figure 3 The utility model discloses an appearance structure schematic diagram shows

[0021] Figure 4 The utility model discloses an appearance structure schematic diagram shows Figure 3 The utility model discloses an appearance structure schematic diagram shows

[0022] In the drawing, 1, left and right side surrounding band, 101, side surrounding band, 102, connecting port, 103, connecting block, 104, expansion buckle, 105, short column, 2, rear side surrounding band, 201, rear surrounding band, 202, adjusting port, 203, rotating connecting port, 204, via hole. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The embodiment of the application provides a helmet surrounding band connecting structure with limiting function, please refer to Figures 1-4 The helmet surrounding band connecting structure with limiting function comprises left and right side surrounding bands 1 and rear side surrounding bands 2, and the left and right side surrounding bands 1 are rotationally connected to the surface of the rear side surrounding bands 2.

[0025] The number of short columns 105 and via holes 204 can be multiple, which is not limited here, and the number can be the same or different. For example, the short column 105 can be two, and the via hole 204 can be four. The short column 105 is arranged in two, and the short column 105 and the expansion buckle 104 are arranged in a triangular shape, which can provide better stability during connection and play a main limiting connection role.

[0026] The short columns 105 are arranged on the surface of the side wall band 101 in an arc shape and are arranged in at least two rows.

[0027] In some embodiments, the rear side wall band 2 is composed of a rear wall band 201, an adjusting hole 202, a rotating connecting hole 203 and a through hole 204, the rear wall band 201 is rotatably connected to the surface of the side wall band 101, the rear wall band 201 is clamped to the surface of the expansion buckle 104 through the rotating connecting hole 203, so as to facilitate the connection adjustment and the mutual adjustment between the left and right side wall bands 1 and the rear side wall band 2, the adjusting hole 202 is arranged on the surface of the rear wall band 201, the rotating connecting hole 203 is arranged on the surface of the rear wall band 201, and the through hole 204 is arranged on the surface of the rear wall band 201, the through hole 204 is arranged on the surface of the rear wall band 201 in an arc shape and is uniformly arranged in an arc shape around the rotating connecting hole 203, so as to facilitate the adjustment and connection during the rotation adjustment and the connection with the left and right side wall bands 1.

[0028] In use, the left and right side wall bands 1 and the rear side wall band 2 are preliminarily connected through rotation connection, the rear wall band 201 of the rear side wall band 2 can rotate on the surface of the side wall band 101, when adjusted, the rear wall band 201 is clamped on the expansion buckle 104 on the surface of the side wall band 101 through the adjusting hole 202, so as to realize the connection adjustment between the left and right side wall bands 1 and the rear side wall band 2, the short columns 105 on the left and right side wall bands 1 are clamped into the through holes 204 of the rear side wall band 2, since the short columns 105 are arranged in two rows and are arranged in a triangular shape with the expansion buckle 104, the short columns 105 play a main limiting and connecting role and provide better stability for the connection, the through holes 204 are arranged on the surface of the rear wall band 201 in an arc shape around the rotating connecting hole 203, so as to facilitate the connection with the left and right side wall bands 1 during the rotation adjustment and to adapt to different wearing requirements.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A helmet harness coupling structure with a position limiting function, comprising left and right side harnesses (1) and a rear side harness (2), characterized in that: The left and right side belt (1) is rotationally connected to the surface of the rear side belt (2); The left and right side belt (1) comprises a side belt (101), a connecting port (102), a connecting block (103), an expansion buckle (104) and a short column (105), the connecting port (102) is arranged at one end of the side belt (101), the connecting block (103) is fixedly connected to the other end of the side belt (101), the expansion buckle (104) is arranged on the surface of the side belt (101), and the short column (105) is fixedly connected to the surface of the side belt (101).

2. The helmet harness interface of claim 1, wherein: The rear side belt (2) is composed of a rear belt (201), an adjusting port (202), a rotation connecting port (203) and a via hole (204), the rear belt (201) is rotationally connected to the surface of the side belt (101), the adjusting port (202) is opened on the surface of the rear belt (201), the rotation connecting port (203) is opened on the surface of the rear belt (201), and the via hole (204) is opened on the surface of the rear belt (201).

3. The helmet harness interface of claim 2, wherein: The rear belt (201) is clamped on the surface of the expansion buckle (104) through the rotation connecting port (203).

4. The helmet harness interface of claim 3, wherein: The short column (105) is clamped in the via hole (204).

5. The helmet harness interface of claim 4, wherein: The via hole (204) is arranged on the surface of the rear belt (201) in an arc shape with the rotation connecting port (203) as an axis.

6. The helmet harness interface of claim 5, wherein: The short column (105) is arranged at least two, and the short column (105) is arranged on the surface of the side belt (101) in an arc shape with the expansion buckle (104) as an axis.

7. The helmet harness attachment structure with a position-limiting function according to claim 6, characterized in that: The short column (105) and the expansion buckle (104) are arranged in a triangular shape.

8. A helmet characterized in that, Comprise: A helmet body, the helmet body comprising a hat core; The connecting port (102) and the connecting block (103) are fixedly connected to the hat core.

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