Detachable battery compartment for fire helmet

By designing a detachable battery compartment, the safety issue of using batteries on fire helmets was solved, enabling convenient replacement and automatic detachment, reducing the risk to the wearer, and ensuring battery life.

CN224554567UActive Publication Date: 2026-07-24CHENGXIANG EMERGENCY EQUIP TECH (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGXIANG EMERGENCY EQUIP TECH (JIANGSU) CO LTD
Filing Date
2025-09-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The built-in battery in the fire helmet poses a safety hazard during use. If the battery is compressed or struck, the entire helmet needs to be removed for repair, increasing the risk of injury to the wearer. In addition, the battery life is limited.

Method used

Design a detachable battery compartment, including a battery compartment body, a carrier box and a sealing cover, powered by a battery plug, with the battery removable for replacement or charging during long-term use, and automatically detaching from the battery compartment body when under pressure to reduce risk.

Benefits of technology

It enables convenient battery removal and replacement, ensuring battery life, reducing the risk of injury to wearers from battery breakage, and improving safety during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detachable battery compartment for fire helmet relates to fire helmet accessory technical field, the utility model discloses a battery compartment body, the upper end of battery compartment body is open -mouthed and is located, and the battery compartment body is slidably inserted with the bearing box, the bottom end lateral wall of bearing box is fixedly installed with the bearing cylinder, the inboard wall of bearing cylinder is fixedly installed with compression spring, and one end of compression spring and the bottom end lateral wall of battery compartment body are in contact, the lateral wall of bearing cylinder is opened with the limit groove, the lateral wall of battery compartment body is located bearing cylinder one side and is provided with the limit mechanism. The utility model can make the battery convenient maintenance, guarantees the battery in the process of rescue and the endurance ability, and when the battery compartment body is extruded by external force and leads to the deformation, can reduce the interference that battery body causes to the wearing personnel after the pressure rupture, reduces the risk probability that the wearing personnel is broken by the battery.
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Description

Technical Field

[0001] This utility model relates to the technical field of fire helmet accessories, specifically to a detachable battery compartment for fire helmets. Background Technology

[0002] Currently, most fire helmets are equipped with built-in batteries. These built-in batteries can only be charged via the helmet's power interface, and their battery life is limited and fixed during prolonged rescue operations. Furthermore, the use of batteries in fire helmets often involves numerous unsafe factors. If the battery is subjected to pressure or impact, causing it to bulge or age, the entire helmet must be removed for repair. Damaged batteries also increase the risk of injury to the wearer. Utility Model Content

[0003] The purpose of this utility model is to address the problem that when batteries are used in fire helmets, there are often many unsafe factors around them. If the battery is subjected to pressure or impact, causing it to bulge or age, the entire helmet needs to be removed for repair. Furthermore, when the battery is damaged by pressure, it also increases the risk of injury to the wearer. This utility model provides a detachable battery compartment for fire helmets.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution: A detachable battery compartment for a fire helmet includes a battery compartment body with an open upper end. A carrier box is slidably inserted into the battery compartment body. A carrier cylinder is fixedly installed on the bottom side wall of the carrier box. A compression spring is fixedly installed on the inner side wall of the carrier cylinder, with one end of the compression spring abutting against the bottom side wall of the battery compartment body. A limit groove is formed on the outer side wall of the carrier cylinder. A limit mechanism is provided on one side of the carrier cylinder on the side wall of the battery compartment body. A battery plug is provided on the side wall of the carrier box. A battery body is slidably inserted into the carrier box, and the battery body and the battery plug are electrically connected. A sealing cover is rotatably installed on the side wall of the carrier box, and a snap-fit ​​mechanism is provided between the sealing cover and the carrier box.

[0005] Preferably, the side wall of the carrier box is provided with a locking opening, the side of the battery compartment is provided with a loading opening, the battery plug is slidably inserted into the locking opening, and one end of the battery plug is slidably inserted into the loading opening.

[0006] Preferably, the limiting mechanism includes a connecting plate, and a connecting opening is provided on the side wall of the battery compartment. The connecting plate is slidably inserted into the connecting opening, and U-shaped rods are fixedly installed on both side walls of the connecting plate. An arc-shaped clamping plate is fixedly installed on one end of the two U-shaped rods, and the arc-shaped clamping plate abuts against the inner side wall of the limiting groove. A support spring is fixedly installed on one end of the arc-shaped clamping plate, and one end of the support spring is fixedly installed on the battery compartment.

[0007] Preferably, a plastic protective shell is fixedly installed on the outer wall of the battery compartment, and the plastic protective shell is sleeved on the outside of the connecting plate.

[0008] Preferably, the snap-fit ​​mechanism includes a support plate, one end of which is fixedly mounted on the sealing cover, and spring telescopic rods are fixedly mounted on both side walls of the support plate. The two side walls of the bearing box located at the snap-fit ​​opening are provided with snap-fit ​​grooves, and one end of each of the two spring telescopic rods is slidably inserted into the other two snap-fit ​​grooves.

[0009] Preferably, a plurality of spring hinges are fixedly installed on one side of the sealing cover, and one side of the plurality of spring hinges is fixedly installed on the side wall of the carrier box.

[0010] The beneficial effects of this utility model are as follows: In this invention, the battery compartment, carrier box, and sealing plate are used to fix the battery compartment to the fire helmet. During daily use, the battery is powered by the battery plug. When the battery runs out of power after prolonged use, the sealing cover can be opened to remove the battery from the carrier box for replacement or recharging. This allows for easy disassembly and maintenance of the battery, ensuring its endurance during rescue operations. Furthermore, when the battery compartment is deformed by external pressure, the carrier box and the internal compression spring can lose their restraints. Under the influence of the elastic force, the carrier box pulls the battery away from the battery compartment, reducing the disturbance to the wearer caused by the battery breaking under pressure and lowering the probability of the wearer being at risk from a broken battery. Attached Figure Description

[0011] Figure 1 This is a front view schematic diagram of the overall three-dimensional connection structure of this utility model; Figure 2 This is a side view schematic diagram of the overall three-dimensional connection structure of this utility model; Figure 3 yes Figure 2 Enlarged structural diagram at point A; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the battery compartment in this utility model; Figure 5This is a schematic diagram of the three-dimensional connection structure between the snap-fit ​​mechanism and the bearing cylinder in this utility model.

[0012] Reference numerals: 1. Battery compartment; 2. Plastic protective shell; 3. Sealing cover; 4. Spring telescopic rod; 5. Loading opening; 6. Battery plug; 7. Support spring; 8. Support plate; 9. Spring telescopic rod; 10. Locking opening; 11. Carrier box; 12. Carrier cylinder; 13. Limiting groove; 14. Connection opening; 15. Connecting plate; 16. U-shaped rod; 17. Arc-shaped locking plate. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0016] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] like Figure 1-5As shown, a detachable battery compartment for a fire helmet includes a battery compartment body 1. The upper end of the battery compartment body 1 is open, and a carrier box 11 is slidably inserted inside the battery compartment body 1. A carrier cylinder 12 is fixedly installed on the bottom side wall of the carrier box 11. A compression spring is fixedly installed on the inner side wall of the carrier cylinder 12, and one end of the compression spring is in contact with the bottom side wall of the battery compartment body 1.

[0018] A limiting groove 13 is provided on the outer side wall of the support cylinder 12. A limiting mechanism is provided on the side wall of the battery compartment 1 on one side of the support cylinder 12. The limiting mechanism includes a connecting plate 15. A connecting opening 14 is provided on the side wall of the battery compartment 1. The connecting plate 15 is slidably inserted into the connecting opening 14. A plastic protective shell 2 is fixedly installed on the outer side wall of the battery compartment 1. The plastic protective shell 2 is sleeved on the outside of the connecting plate 15. The plastic protective shell 2 can protect the connecting plate 15 and prevent the limiting mechanism from being triggered under normal external force, thereby improving the stability of the battery compartment.

[0019] U-shaped rods 16 are fixedly installed on both sides of the connecting plate 15. An arc-shaped clamping plate 17 is fixedly installed on one end of each U-shaped rod 16, and the arc-shaped clamping plate 17 abuts against the inner side wall of the limiting groove 13. A support spring 7 is fixedly installed on one end of the arc-shaped clamping plate 17, and the support spring 7 is fixedly installed on the battery compartment 1. When the plastic protective shell 2 and the battery compartment 1 are deformed by pressure, the battery body 1 will be at greater risk. As a result, the compression spring in the bearing cylinder 12 will cause the bearing box 11 to lift the battery body out of the battery compartment under the action of the elastic force, thereby reducing the interference to the wearer after the battery body is crushed under pressure, and reducing the probability of the wearer being at risk due to battery breakage.

[0020] A battery plug 6 is provided on the side wall of the carrier box 11. The battery body is slidably inserted into the carrier box 11, and the battery body and the battery plug 6 are electrically connected. A slotting opening 10 is provided on the side wall of the carrier box 11. A loading opening 5 is provided on one side of the battery compartment 1. The battery plug 6 is slidably inserted into the slotting opening 10, and one end of the battery plug 6 is slidably inserted into the loading opening 5. Preferably, the same structure is provided on the other side of the battery compartment 1 and the carrier box 11, so as to mount and install the charging interface.

[0021] A sealing cover 3 is rotatably mounted on the side wall of the carrier box 11. Multiple spring hinges 4 are fixedly mounted on one side of the sealing cover 3. The multiple spring hinges 4 are fixedly mounted on the side wall of the carrier box 11. The multiple spring hinges 4 can drive the sealing cover 3 to automatically reset, thereby improving its sealing stability for the carrier box 11.

[0022] A snap-fit ​​mechanism is provided between the sealing cover 3 and the carrier box 11. The snap-fit ​​mechanism includes a support plate 8. One end of the support plate 8 is fixedly installed on the sealing cover 3, and spring telescopic rods 9 are fixedly installed on both side walls of the support plate 8. The carrier box 11 has slots on both side walls of the slot opening 10. One end of each of the two spring telescopic rods 9 is slidably inserted into the other two slots. By means of the spring telescopic rods 9, the sealing cover 3 is snapped into the slots of the carrier box 11, thereby ensuring the stability of the sealing cover 3 in sealing the carrier box 11, and thus providing better protection for the loaded battery body.

[0023] In summary: By fixing the battery compartment 1 to the fire helmet, energy is supplied through the battery plug 6 during daily use. When the battery runs out of power after prolonged use, the sealing cover 3 can be opened to directly remove the battery body from the carrier box 11 for replacement or recharging, ensuring the battery's endurance during rescue operations. When the battery compartment 1 is deformed due to external pressure, the plastic protective shell 2 on one side will deform and break. The pressure will then continue to push the connecting plate 15 to move, which in turn will push the U-shaped rod 16 and the arc-shaped clamping plate 17 to move. This causes the arc-shaped clamping plate 17 to squeeze the support spring 7 and disengage from the limiting groove 13 on the carrier cylinder 12. Consequently, the compression spring inside the carrier cylinder 12 and the carrier cylinder 12 will lose the limiting effect of the arc-shaped clamping plate 17. Then, under the elastic force of the compression spring inside the carrier cylinder 12, the carrier box 11 will lift the battery body out of the battery compartment 1.

[0024] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detachable battery compartment for a fire helmet, characterized in that, The battery compartment (1) is open at the top and a carrier box (11) is slidably inserted inside the battery compartment (1). A carrier cylinder (12) is fixedly installed on the bottom side wall of the carrier box (11). A compression spring is fixedly installed on the inner side wall of the carrier cylinder (12), and one end of the compression spring is in contact with the bottom side wall of the battery compartment (1). A limiting groove (13) is opened on the outer side wall of the carrier cylinder (12). A limiting mechanism is provided on the side wall of the battery compartment (1) on one side of the carrier cylinder (12). A battery plug (6) is provided on the side wall of the carrier box (11). A battery body is slidably inserted inside the carrier box (11), and the battery body and the battery plug (6) are electrically connected. A sealing cover (3) is rotatably installed on the side wall of the carrier box (11), and a snap-fit ​​mechanism is provided between the sealing cover (3) and the carrier box (11).

2. The detachable battery compartment for a fire helmet according to claim 1, characterized in that, The side wall of the carrier box (11) is provided with a slotting opening (10), and the side of the battery compartment (1) is provided with a loading opening (5). The battery plug (6) is slidably inserted into the slotting opening (10), and one end of the battery plug (6) is slidably inserted into the loading opening (5).

3. The detachable battery compartment for a fire helmet according to claim 1, characterized in that, The limiting mechanism includes a connecting plate (15), and a connecting opening (14) is provided on the side wall of the battery compartment (1). The connecting plate (15) is slidably inserted into the connecting opening (14), and U-shaped rods (16) are fixedly installed on both sides of the connecting plate (15). An arc-shaped clamping plate (17) is fixedly installed at one end of the two U-shaped rods (16), and the arc-shaped clamping plate (17) abuts against the inner side wall of the limiting groove (13). A support spring (7) is fixedly installed at one end of the arc-shaped clamping plate (17), and one end of the support spring (7) is fixedly installed on the battery compartment (1).

4. The detachable battery compartment for a fire helmet according to claim 3, characterized in that, A plastic protective shell (2) is fixedly installed on the outer wall of the battery compartment (1), and the plastic protective shell (2) is sleeved on the outside of the connecting plate (15).

5. The detachable battery compartment for a fire helmet according to claim 1, characterized in that, The snap-fit ​​mechanism includes a support plate (8), one end of which is fixedly installed on the sealing cover (3), and spring telescopic rods (9) are fixedly installed on both sides of the support plate (8). The two sides of the bearing box (11) located at the snap-fit ​​opening (10) are provided with snap-fit ​​grooves, and one end of each of the two spring telescopic rods (9) is slidably inserted into the other two snap-fit ​​grooves.

6. The detachable battery compartment for a fire helmet according to claim 1, characterized in that, A plurality of spring hinges (4) are fixedly installed on one side of the sealing cover (3), and one side of the plurality of spring hinges (4) is fixedly installed on the side wall of the carrier box (11).