High-stability fire fighting helmet

Abstract

The utility model relates to the technical field of helmets, in particular to a high-stability fire fighting helmet which comprises a helmet main body, a supporting ring and a fastening belt, the supporting ring is fixed on the outer side of the helmet main body, the fastening belt is arranged on the outer side of the supporting ring, a fixing ring is arranged in the helmet main body, the fixing ring is arranged in an annular shape, and the fastening belt is arranged on the outer side of the fixing ring. A fixing ring is arranged on the outer side of the helmet body, a buffering connecting block is arranged on the outer side of the fixing ring, the outer end of the buffering connecting block is fixedly connected with the helmet body, an attaching air bag is arranged on the inner side of the fixing ring, an automatic volume control mechanism is connected to the outer side of the attaching air bag, and the attaching air bag is made of elastic materials. According to the high-stability fire fighting helmet, the attaching air bag is arranged so that the high-stability fire fighting helmet can be attached to the head of a user, a connecting gap between the head and the helmet body is filled, and therefore the helmet body can be worn more stably, and meanwhile collision vibration on the helmet body can be buffered through the attaching air bag and a buffering connecting block.

Description

Technical Field

[0001] The utility model relates to the technical field of helmets, in particular to a fire-fighting helmet with high stability. Background Art

[0002] As an important equipment to provide protection for the head, the helmet must be worn in some special places. The fire helmet is the equipment that firefighters must wear when they go out on duty. A fireproof cloth can be connected under the helmet to protect the neck. The application number is CN202221537191.1. A fire helmet disclosed on November 18, 2022, includes a helmet body, a lampshade is provided on the front side of the helmet body, a lamp body is provided in the lampshade, and a cleaning component is provided outside the lampshade. The cleaning component includes a rubber scraper slidably connected to the upper and lower ends of the lampshade, and a moving rod is slidably positioned on the left and right sides of the lampshade. A protective cover is fixed on the front side of the moving rod, an electric air pump and a control button are fixed on the left side of the lampshade, the electric air pump is connected to the air guide hole through a hose, an air outlet hole connected to the air guide hole is arranged on the lower side of the upper sliding rod, and a sewage discharge hole is arranged on the lower side of the protective cover. When too many impurities are attached to the lampshade and affect the lighting, the moving rod can be pushed to separate the protective cover from the scraper, and then the scraper is moved to scrape off the impurities on the lampshade, making it easy to clean the lampshade. After the lampshade is cleaned, the scraper can be moved into the protective cover for protection, and at the same time, the impurities attached to the scraper can be removed by blowing air, which is convenient for people to use the scraper to clean the lamp multiple times.

[0003] Current fire helmets are worn directly and then bound with a fastening strap when in use. However, since the internal dimensions of the helmet are fixed, different gaps will appear when worn by people with different head shapes, resulting in poor wearing stability of the helmet. In addition, the binding of the helmet fastening strap is generally located on the inside of the helmet, making it inconvenient for outsiders to remove the helmet when they need to. Utility Model Content

[0004] The purpose of the utility model is to provide a high-stability fire helmet to solve the problem raised in the above-mentioned background technology that the current fire helmet is directly worn when in use and then bound by a fastening belt, but since the internal size of the helmet is fixed, different gaps will appear after being worn by people with different head shapes, resulting in poor wearing stability of the helmet, and the binding of the helmet fastening belt is generally located on the inside of the helmet, which makes it inconvenient for outsiders to take off the helmet.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-stability fire helmet, comprising a helmet body, a support ring and a fastening belt, the support ring is fixed to the outside of the helmet body, and a fastening belt is arranged on the outside of the support ring, a fixing ring is arranged inside the helmet body, and the fixing ring is arranged in a ring shape, and a buffer connecting block is arranged on the outside of the fixing ring, the outer end of the buffer connecting block is fixedly connected to the helmet body, a fitting airbag is arranged on the inside of the fixing ring, and a volume automatic control mechanism is connected to the outside of the fitting airbag, and the fitting airbag is made of elastic material, the left end of the fastening belt is connected to a positioning frame, and a through groove is arranged on the outside of the positioning frame, and the through groove is opened inside the support ring, the positioning frame passes through the through groove to position the left end of the fastening belt, and the right end of the fastening belt is connected to an automatic tightening mechanism.

[0006] To further optimize the technical solution, the buffer connection blocks are made of rubber material, and the buffer connection blocks are distributed at equal angles on the outside of the fixing ring.

[0007] To further optimize the technical solution, the fitting airbag is arranged in a circular ring shape, and the fitting airbag is bonded to the inner side of the fixing ring.

[0008] To further optimize the technical solution, the automatic volume control mechanism includes an elastic airbag and a connecting tube;

[0009] An elastic airbag is arranged above the fitting airbag, and the elastic airbag is fixed to the middle part of the helmet body;

[0010] The connecting tube is fixed on the upper part of the fixing ring, and the connecting tube and the fitting airbag are connected to each other, and the upper end of the connecting tube and the elastic airbag are connected to each other.

[0011] To further optimize the technical solution, a connecting column is fixed in the middle of the positioning frame, the connecting column and the end of the fastening belt are connected to form a rotational connection with the fastening belt, and the width of the positioning frame is greater than the width of the through slot.

[0012] To further optimize the technical solution, the automatic tensioning mechanism includes a control shaft, a mounting cover, a torsion spring and a locking mechanism;

[0013] A control shaft, arranged on the right side of the support ring;

[0014] The mounting cover is fixed on the upper part of the supporting ring, and the control shaft is located inside the mounting cover and forms a rotation connection between the mounting cover and the control shaft;

[0015] A torsion spring, arranged at the end of the control shaft to provide a rotational restoring force for the control shaft;

[0016] The locking mechanism is arranged on the outside of the control shaft.

[0017] To further optimize the technical solution, the locking mechanism includes a limiting wheel and a locking rod;

[0018] The limiting wheel is fixed on the rear side of the control shaft and rotates synchronously with the control shaft, and the surface of the limiting wheel is made of rubber;

[0019] The locking rod is arranged on the outer side of the limiting wheel, and the locking rod penetrates the installation cover and forms a threaded connection between the installation cover.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The fitting airbag can be arranged to fit the head of the user, and fill the connection gap between the head and the helmet body, so that the wearing of the helmet body is more stable. At the same time, the fitting airbag and the buffer connection block can also buffer the bumps and vibrations on the helmet body.

[0022] The elastic airbag can be used to replenish the gas in the fitting airbag, and after the helmet body is worn, the elastic airbag can be automatically squeezed to inflate the fitting airbag, and the elastic airbag can also provide buffering protection against impact on the top of the helmet;

[0023] The helmet body can be tightened and worn by the fastening belt, and the end of the fastening belt can be clamped above the through slot by the positioning frame. The fastening belt can be unfastened by rotating the positioning frame to pass through the through slot, and the operation can be performed on the outside of the helmet body.

[0024] The control shaft can automatically tighten the fastening belt by controlling the reeling effect of the fastening belt, so that the fastening belt can be worn firmly. After the helmet body is removed, the control shaft can also reel in the fastening belt to prevent the fastening belt from falling out.

[0025] The rotation of the control shaft can be limited by the connection between the locking rod and the limiting wheel, so that the unwinding length of the fastening belt remains fixed, ensuring the fastening effect of the fastening belt when the helmet body is in use and improving the overall wearing stability of the helmet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0028] Figure 3 This is a schematic diagram of the side section structure of the helmet body of the utility model;

[0029] Figure 4 This is a schematic diagram of the side section structure of the support ring of the utility model;

[0030] Figure 5This is a schematic diagram of the main cross-sectional structure of the support ring of the utility model;

[0031] Figure 6 It is a schematic diagram of the top-sectional structure of the installation cover of the utility model.

[0032] In the figure: 1. Helmet body; 2. Support ring; 3. Fastening belt; 4. Fixing ring; 5. Buffer connecting block; 6. Fitting airbag; 7. Elastic airbag; 8. Connecting pipe; 9. Positioning frame; 10. Connecting column; 11. Through groove; 12. Control shaft; 13. Mounting cover; 14. Torsion spring; 15. Limiting wheel; 16. Locking rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-Figure 6 The utility model provides the following technical solutions: a high-stability fire helmet, comprising a helmet body 1, a support ring 2 and a fastening belt 3, wherein the support ring 2 is fixed to the outside of the helmet body 1, and the fastening belt 3 is arranged on the outside of the support ring 2;

[0035] Embodiment 1:

[0036] The utility model provides a technical solution, which discloses that a fixing ring 4 is arranged inside a helmet body 1, and the fixing ring 4 is arranged in an annular shape, and a buffer connection block 5 is arranged outside the fixing ring 4, and the outer end of the buffer connection block 5 is fixedly connected to the helmet body 1, and a fitting airbag 6 is arranged inside the fixing ring 4, and the outer side of the fitting airbag 6 is connected to a volume automatic control mechanism, and the fitting airbag 6 is made of elastic material, the left end of the fastening belt 3 is connected to a positioning frame 9, and the outer side of the positioning frame 9 is provided with a through groove 11, and the through groove 11 is opened inside the support ring 2, the positioning frame 9 penetrates the through groove 11 to position the left end of the fastening belt 3, and the right end of the fastening belt 3 is connected to an automatic tightening mechanism, the buffer connection block 5 is made of rubber material, and the buffer connection blocks 5 are distributed at equal angles on the outer side of the fixing ring 4;

[0037] When in use, the helmet body 1 can be worn on the head, and the connection gap between the user's head and the fixing ring 4 can be filled by fitting the airbag 6 to improve the tightness of the fit. At the same time, the flexible contact surface can also improve the wearing comfort. The buffer connection block 5 provides support for the fixing ring 4, and the buffer connection block 5 can also buffer the bumps and vibrations on the helmet body 1.

[0038] Embodiment 2:

[0039] On the basis of the first embodiment, it is disclosed that the fitting airbag 6 is arranged in a circular ring shape, and the fitting airbag 6 is bonded to the inner side of the fixing ring 4, the volume automatic control mechanism includes an elastic airbag 7 and a connecting tube 8, the elastic airbag 7 is arranged above the fitting airbag 6, and the elastic airbag 7 is fixed to the middle part of the helmet body 1, the connecting tube 8 is fixed above the fixing ring 4, and the connecting tube 8 and the fitting airbag 6 are connected to each other, and the upper end of the connecting tube 8 and the elastic airbag 7 are connected to each other;

[0040] When the helmet body 1 is worn, the elastic airbag 7 will be squeezed by the head, so that the gas inside it can be transferred to the fitting airbag 6 through the connecting tube 8. The fitting airbag 6 expands and fits the user's head. At the same time, the elastic airbag 7 provides a fitting and positioning effect above the user's head, thereby improving the wearing stability of the helmet body 1. When the helmet body 1 is subsequently taken off, the squeezing of the elastic airbag 7 disappears, and the gas in the fitting airbag 6 can return to the inside of the elastic airbag 7 through the connecting tube 8, restoring it to its initial state.

[0041] Embodiment three:

[0042] On the basis of the first embodiment, a connecting column 10 is fixed in the middle of the positioning frame 9, the connecting column 10 is connected to the end of the fastening belt 3 to form a rotational connection with the fastening belt 3, and the width of the positioning frame 9 is greater than the width of the through slot 11. The automatic tensioning mechanism includes a control shaft 12, a mounting cover 13, a torsion spring 14 and a locking mechanism. The control shaft 12 is arranged on the right side of the support ring 2, the mounting cover 13 is fixed above the support ring 2, the control shaft 12 is located inside the mounting cover 13 and between the mounting cover 13 to form a rotational connection, the torsion spring 14 is arranged at the end of the control shaft 12 to provide a rotational reset force for the control shaft 12, the locking mechanism is arranged on the outside of the control shaft 12, the locking mechanism includes a limiting wheel 15 and a locking rod 16, the limiting wheel 15 is fixed on the rear side of the control shaft 12 and rotates synchronously with the control shaft 12, and the surface of the limiting wheel 15 is made of rubber, the locking rod 16 is arranged on the outside of the limiting wheel 15, and the locking rod 16 passes through the mounting cover 13 and the mounting cover 13 to form a threaded connection;

[0043] When the helmet body 1 needs to be taken off later, the lock of the control shaft 12 can be released first, and the positioning frame 9 can be pulled to a vertical position so that the locking frame 9 passes through the through slot 11, and then the positioning frame 9 is rotated to make the locking belt 3 slide on the outside of the connecting column 10, and the positioning frame 9 is laid flat on the through slot 11 to position the end of the locking belt 3. At the same time, the control shaft 12 reels the locking belt 3 under the action of the torsion spring 14, tightens it, and then rotates the locking rod 16 to connect it with the limiting wheel 15 to lock the rotation of the control shaft 12. When the helmet body 1 needs to be taken off later, the lock of the control shaft 12 can be released first, and the positioning frame 9 can be pulled and turned to a vertical position so that it passes through the through slot 11, and the fastening belt 3 can be untied.

[0044] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-stability fire helmet, comprising a helmet body (1), a support ring (2) and a fastening belt (3), wherein the support ring (2) is fixed to the outside of the helmet body (1), and the fastening belt (3) is arranged on the outside of the support ring (2); Features: The helmet body (1) is provided with a fixing ring (4) inside, and the fixing ring (4) is arranged in an annular shape, and a buffer connection block (5) is arranged outside the fixing ring (4), and the outer end of the buffer connection block (5) is fixedly connected to the helmet body (1), and a fitting airbag (6) is arranged inside the fixing ring (4), and the outer side of the fitting airbag (6) is connected to a volume automatic control mechanism, and the fitting airbag (6) is made of elastic material, the left end of the fastening belt (3) is connected to a positioning frame (9), and the outer side of the positioning frame (9) is provided with a through groove (11), and the through groove (11) is opened inside the support ring (2), the positioning frame (9) penetrates the through groove (11) to position the left end of the fastening belt (3), and the right end of the fastening belt (3) is connected to an automatic tightening mechanism.

2. A high-stability fire helmet according to claim 1, characterized in that: The buffer connection blocks (5) are made of rubber material, and the buffer connection blocks (5) are distributed at equal angles on the outside of the fixing ring (4).

3. A high-stability fire helmet according to claim 1, characterized in that: The fitting airbag (6) is arranged in a circular ring shape, and the fitting airbag (6) is bonded to the inner side of the fixing ring (4).

4. A high-stability fire helmet according to claim 3, characterized in that: The automatic volume control mechanism comprises an elastic airbag (7) and a connecting pipe (8); An elastic airbag (7) is arranged above the fitting airbag (6), and the elastic airbag (7) is fixed to the middle part of the helmet body (1); The connecting tube (8) is fixed above the fixing ring (4), and the connecting tube (8) and the fitting airbag (6) are connected to each other, and the upper end of the connecting tube (8) and the elastic airbag (7) are connected to each other.

5. A high-stability fire helmet according to claim 1, characterized in that: A connecting column (10) is fixed in the middle of the positioning frame (9), the connecting column (10) is connected to the end of the fastening belt (3) to form a rotational connection with the fastening belt (3), and the width of the positioning frame (9) is greater than the width of the through slot (11).

6. A high-stability fire helmet according to claim 1, characterized in that: The automatic tensioning mechanism comprises a control shaft (12), a mounting cover (13), a torsion spring (14) and a locking mechanism; A control shaft (12) is arranged on the right side of the support ring (2); A mounting cover (13) is fixed above the support ring (2), and the control shaft (12) is located inside the mounting cover (13) and is rotatably connected to the mounting cover (13); A torsion spring (14) is arranged at the end of the control shaft (12) to provide a rotational reset force for the control shaft (12); The locking mechanism is arranged on the outside of the control shaft (12).

7. A high-stability fire helmet according to claim 6, characterized in that: The locking mechanism comprises a limiting wheel (15) and a locking rod (16); A limiting wheel (15) is fixed to the rear side of the control shaft (12) and rotates synchronously with the control shaft (12), and the surface of the limiting wheel (15) is made of rubber; A locking rod (16) is arranged on the outside of the limiting wheel (15), and the locking rod (16) penetrates the mounting cover (13) and forms a threaded connection between the mounting cover (13).

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