Toggle clip, safety helmet equipment mounting device and safety helmet

By designing a clamping device for safety helmets, the problem of the wearing stability and protection functions of existing safety helmets after the auxiliary equipment is installed is solved, and the stable installation of safety helmets and the convenient replacement of smart devices are achieved.

CN222787147UActive Publication Date: 2025-04-25GUANGZHOU XINYUANHE INFORMATION TECH CO LTD
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Patent Information

Application Number
CN202421950938.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-04-25
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

After the existing safety helmet is equipped with auxiliary equipment, it will affect its wearing stability and protective function.

Method used

A clamping device is designed, including a clamping body, a clamping member and a connecting frame, which jamms the safety helmet body through the clamping parts of the clamping body, and connects external equipment through the connecting frame to ensure wear stability and protection function.

Benefits of technology

It realizes the convenient installation and replacement of smart devices without affecting the wearing stability and protection functions of the safety helmet, improving the functionality and convenience of the safety helmet.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a toggle clip, a safety helmet equipment mounting device and a safety helmet, and relates to the technical field of safety helmets. The toggle clip comprises a toggle clip body, a clamping piece and a connecting frame, wherein the toggle clip body comprises a first clamping part, a transition part and a second clamping part which are connected in sequence; a cavity with an opening is formed between the first clamping part and the second clamping part; the cavity is used for clamping the safety helmet body entering from the opening; the clamping piece is arranged on the inner wall of the first clamping part or the inner wall of the second clamping part, and the clamping piece is used for clamping the safety helmet body; the first clamping part and the second clamping part are far away from each other under the action of stress, so that the opening is enlarged, and the toggle clip is separated from the safety helmet body. The connecting frame is connected with the transition part and used for being connected with external equipment. Audio and video equipment can be conveniently installed on the safety helmet body through the toggle clip so as to supervise and command work of field operation personnel, and follow-up replacement or maintenance of external equipment is also facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of safety helmets, and in particular to a clip, a safety helmet equipment installation device and a safety helmet. Background Art

[0002] According to the requirements of GB2811-2019 "Head Protection Safety Helmets" (5.2.15), when the safety helmet is equipped with accessories (such as protective face shields, hearing protectors, lighting devices, communication equipment, warning signs, information devices, etc.), the accessories should not affect the wearing stability of the safety helmet and should not affect its normal protective function.

[0003] With the rapid development of intelligent auxiliary technology and professional equipment, the current safety helmets are complex and less safe. The auxiliary equipment installed on the safety helmets affects the wearing stability of the safety helmets and also affects their protective functions. Utility Model Content

[0004] The utility model provides a clip, a safety helmet equipment installation device and a safety helmet, which can conveniently install a smart device on the safety helmet body through the clip, and is also convenient for subsequent replacement or repair of external equipment. In addition, the clip can ensure the wearing stability of the safety helmet without affecting its protective function.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the utility model provides a clip buckle, which includes:

[0007] The clip body comprises a first clamping portion, a transition portion and a second clamping portion which are connected in sequence; a cavity with an opening is formed between the first clamping portion and the second clamping portion; the cavity is used to clamp the helmet body entering from the opening;

[0008] A clamping member, the clamping member is arranged on the inner wall of the first clamping portion or the inner wall of the second clamping portion, and the clamping member is used to clamp the helmet body;

[0009] The first clamping portion and the second clamping portion move away from each other under the action of force, so that the opening becomes larger, thereby causing the clip to detach from the helmet body;

[0010] A connecting frame is connected to the transition portion and is used to connect external equipment.

[0011] In an optional embodiment, the distance between the first clamping portion and the second clamping portion gradually decreases from close to the transition portion to far away from the transition portion.

[0012] In an optional embodiment, the first clamping portion is connected to the transition portion in a circular arc transition, and the second clamping portion is connected to the transition portion in a circular arc transition.

[0013] In an optional embodiment, the first clamping portion is arranged at an angle to the central axis of the connecting frame.

[0014] In an optional embodiment, the second clamping portion includes a first connecting portion and a clamping portion, the first connecting portion is parallel to the first clamping portion; one end of the first connecting portion is connected to the transition portion, and the other end of the first connecting portion is connected to the clamping portion at an angle; a clamping piece is provided on an inner wall of the clamping portion, and a gap exists between the clamping piece and the transition portion.

[0015] In an optional embodiment, a protrusion is provided on the inner wall of the first clamping portion.

[0016] In an optional embodiment, the clip further includes a loose nut, and the transition portion and the connecting frame are detachably connected via the loose nut.

[0017] An embodiment of the utility model further provides a safety helmet equipment installation device, comprising the clip and the smart device described in any one of the above embodiments, wherein the smart device is connected to the clip via the connecting frame.

[0018] An embodiment of the utility model further provides a safety helmet, comprising a safety helmet body and the clip described in any one of the above embodiments, wherein a mounting hole is provided at the edge of the safety helmet body, and the clip is clamped at the edge of the safety helmet body through the mounting hole.

[0019] An embodiment of the utility model also provides a safety helmet, comprising the clip, the safety helmet body and the smart device described in any of the above embodiments, wherein an installation hole is provided at the edge of the safety helmet body, and the clip is clamped on the edge of the safety helmet body through the installation hole; the smart device is connected to the clip through the connecting frame.

[0020] The beneficial effects of the clip, the helmet equipment installation device and the helmet of the embodiment of the utility model include:

[0021] The clip includes a clip body, a clamping member and a connecting frame. The clip body includes a first clamping part, a transition part and a second clamping part connected in sequence. A cavity with an opening is formed between the first clamping part and the second clamping part. The cavity is used to clamp the helmet body entering from the opening. The clamping member is arranged on the inner wall of the first clamping part or the inner wall of the second clamping part, and the clamping member is used to clamp the helmet body. The first clamping part and the second clamping part move away from each other under the action of force, so that the opening becomes larger, so that the clip is separated from the helmet body. By setting the clip body, the edge of the helmet body is clamped from the opening without the action of external force, and is clamped by the clamping member to ensure that the clip body is stably connected with the helmet body. When the clip body is subjected to external force, the first clamping part and the second clamping part move away from each other, and the opening between the two becomes larger, the helmet body and the clamping member are released from the clamping state, and the helmet can be taken out from the opening, that is, the clip body is separated from the helmet body. The connecting frame is connected to the transition part, and the connecting frame is used to connect external equipment. By setting up a connection frame, external devices such as video devices such as cameras or other audio devices, or devices that combine audio and video, can be connected, so that the commander can better understand, supervise and direct the work of the on-site workers based on the information fed back by audio and video. The external device is detachably connected to the helmet body through a clip, so it can be installed when needed and removed when not needed. It is also convenient for subsequent maintenance and replacement of external devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of a first safety helmet equipment installation device provided in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of a second safety helmet equipment installation device provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a third safety helmet equipment installation device provided in an embodiment of the present utility model;

[0026] Figure 4 A schematic diagram of a first clip provided in an embodiment of the utility model;

[0027] Figure 5 A schematic diagram of a second clip provided in an embodiment of the utility model;

[0028] Figure 6 This is a schematic diagram of a third type of clip provided in an embodiment of the present utility model.

[0029] Icons: 1000-safety helmet; 100-clip; 110-clip body; 111-first clamping part; 1111-bump; 112-second clamping part; 1121-first connecting part; 1122-clamping part; 113-transition part; 114-clamping piece; 1141-second connecting part; 1142-holding part; 115-opening; 116-cavity; 120-connecting frame; 121-central axis; 200-elastic nut; 300-safety helmet body; 310-edge; 320-mounting hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0034] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] Safety issues have always been highly valued in construction operations. In general, in addition to good safety management, workers need to wear safety helmets when working, which can protect the head from falling objects or other factors. Workers must wear safety helmets when entering the work site to ensure work safety. Existing safety helmets are mainly made of plastic with high hardness. When workers wear safety helmets, they can reduce the damage to the head caused by heavy objects falling, and once the workers fall, the safety helmets can also protect the heads of the workers. However, most of the current safety helmets do not have the functions of monitoring and command, which makes it inconvenient for the commanders to direct the on-site workers to work according to the on-site information.

[0037] Based on this, see Figure 1-Figure 3 The clip 100 provided in the embodiment of the utility model can effectively solve the above-mentioned technical problems. The audio and video equipment can be conveniently installed on the helmet body 300 through the press-type clip 100 to supervise and direct the work of the on-site workers, and it is also convenient to replace or repair the external equipment later. The clip 100 is applied to the helmet 1000 equipment installation device, and the helmet 1000 equipment installation device with the clip 100 also has the same functions as mentioned above, which will not be repeated here.

[0038] Figure 1 This is a schematic diagram of a first safety helmet 1000 device installation device provided in an embodiment of the utility model; Figure 2 It is a schematic diagram of a second safety helmet 1000 equipment installation device provided in an embodiment of the utility model; Figure 3 This is a schematic diagram of a third safety helmet 1000 equipment installation device provided in an embodiment of the present utility model.

[0039] The safety helmet 1000 equipment installation device (not shown in the figure) in this embodiment includes a clip 100 and an intelligent device, and the intelligent device is connected to the clip 100 through a connecting frame 120. Specifically, the intelligent device in this embodiment is an intelligent device with real-time audio and video communication, that is, the intelligent device can realize the acquisition of images, and the commander can use the voice command of the intelligent device to better operate the workers on the scene according to the acquired information. At the same time, the intelligent device can also be used for the commander to supervise the work of the workers on the scene. In addition, the intelligent device may only include a camera, or only include a single-function device such as a real-time audio and video communication device, a lighting device, etc. Of course, the intelligent device may also be a device that combines multiple functions, such as a device that can simultaneously realize functions such as lighting, video recording, and real-time audio and video. The intelligent device is determined according to the specific working conditions and is not limited here.

[0040] Furthermore, if Figure 1 , Figure 2 and Figure 3 As shown, a helmet 1000 provided in this embodiment includes a helmet body 300 and a clip 100, and the edge 310 of the helmet body 300 is provided with a mounting hole 320, and the clip 100 is clamped to the edge 310 of the helmet body 300 through the mounting hole 320. Specifically, the first clamping portion 111 and the second clamping portion 112 are respectively located on both sides of the edge 310 of the helmet body 300, and the clamping member 114 clamps the edge 310 of the helmet body 300 to achieve the connection between the clip 100 and the helmet body 300. In detail, the mounting hole 320 in this embodiment is a square hole. Of course, the shape of the mounting hole 320 can also be other shapes such as a rectangle, a polygon, an ellipse, etc., according to the size design of the clip 100, which is not limited here.

[0041] In order to realize the various functions of the helmet 1000, such as video recording, voice communication, etc., please continue to refer to Figure 1-Figure 3 In this embodiment, a helmet 1000 includes a clip 100, a helmet body 300, and a smart device. The edge 310 of the helmet body 300 is provided with a mounting hole 320, and the clip 100 is clamped on the edge 310 of the helmet body 300 through the mounting hole 320; the smart device is connected to the clip 100 through a connecting frame 120. Specifically, the smart device is the same as the smart device in the above-mentioned device installation device of the helmet 1000, and the installation of the helmet body 300 and the clip 100 is also the same as above, which will not be described in detail.

[0042] The specific structure of the clip 100 is described in detail below.

[0043] Figure 4 It is a schematic diagram of a first clip 100 provided in an embodiment of the utility model; Figure 5It is a schematic diagram of a second clip 100 provided in an embodiment of the utility model; Figure 6 It is a schematic diagram of a third clip 100 provided in an embodiment of the present utility model.

[0044] In order to facilitate the connection and removal of the external device and the helmet body 300, please refer to Figure 4 , Figure 5 and Figure 6 The clip 100 provided in this embodiment includes a clip body 110, a clamping member 114 and a connecting frame 120. The clip body 110 includes a first clamping portion 111, a transition portion 113 and a second clamping portion 112 connected in sequence; a cavity 116 with an opening 115 is formed between the first clamping portion 111 and the second clamping portion 112; the cavity 116 is used to clamp the helmet body 300 entering from the opening 115. The clamping member 114 is arranged on the inner wall of the first clamping portion 111 or the inner wall of the second clamping portion 112, and the clamping member 114 is used to clamp the helmet body 300. The first clamping portion 111 and the second clamping portion 112 move away from each other under the action of force, so that the opening 115 becomes larger, so that the clip 100 is separated from the helmet body 300. By setting the clip body 110, in the absence of external force, the edge 310 of the helmet body 300 is inserted from the opening 115 and clamped by the clamping member 114 to ensure that the clip body 110 is stably connected to the helmet body 300. When the clip body 110 is subjected to external force, the first clamping portion 111 and the second clamping portion 112 are moved away from each other, and the opening 115 between the two becomes larger, the helmet body 300 and the clamping member 114 are released from the clamping state, and the helmet 1000 can be taken out from the opening 115, that is, the clip body 110 is separated from the helmet body 300. The connecting frame 120 is connected to the transition portion 113, and the connecting frame 120 is used to connect external equipment. By setting the connecting frame 120, external equipment, such as video equipment such as a camera or other audio equipment, or equipment combining audio and video, can be connected externally, so that the commander can better understand, supervise and command the work of the on-site operators based on the information fed back by audio and video. The external device is detachably connected to the helmet body 300 through the clip 100, and can be installed when needed and removed when not needed, which is convenient for subsequent maintenance and replacement of the external device.

[0045] Specifically, the clamping member 114 in this embodiment is arranged on the inner wall of the second clamping portion 112. There is a gap between the clamping member 114 and the transition portion 113 so as to clamp the helmet body 300. Of course, the clamping member 114 can also be arranged on the inner wall of the first clamping portion 111 or the inner wall of the transition portion 113. In order to prevent the helmet 1000 from being difficult to disassemble from the clip body 110, the clamping member 114 is arranged on the inner wall of any one of the parts of the clip body 110. In addition, the clamping member 114 can also be arranged on the inner wall of the first clamping portion 111 and the inner wall of the second clamping portion 112 at the same time, or the clamping member 114 can be arranged on the inner wall of the first clamping portion 111 and the inner wall of the transition portion 113 at the same time, or the clamping member 114 can be arranged on the inner wall of the second clamping portion 112 and the inner wall of the transition portion 113 at the same time. With such a design, when it is necessary to separate the clip 100 from the helmet body 300, a greater external force is required.

[0046] For more details, please continue to read Figure 4 , Figure 5 and Figure 6 In this embodiment, the clamping member 114 includes a second connecting portion 1141 and a resisting portion 1142. One end of the second connecting portion 1141 is connected to the inner wall of the first clamping portion 111 or the inner wall of the second clamping portion 112, and the other end of the second connecting portion 1141 is connected to the resisting portion 1142. The resisting portion 1142 is used to resist the edge 310 of the helmet body 300 when the clip 100 fastens the helmet body 300. Of course, the clamping member 114 can also be designed as other structural forms, which are designed according to the shape and size of the helmet body 300 actually clamped, and are not limited here.

[0047] See also Figure 4-Figure 6 In this embodiment, the distance between the first clamping portion 111 and the second clamping portion 112 gradually decreases from close to the transition portion 113 to far away from the transition portion 113. Through the above design, since the opening 115 at the position where the first clamping portion 111 and the second clamping portion 112 are far away from the transition portion 113 is smaller, after the helmet body 300 is inserted from the opening 115, the first clamping portion 111 and the second clamping portion 112 return to the initial state under the action of their own elastic force, that is, the diameter of the opening 115 at this time is smaller than the aperture of the mounting hole 320 of the helmet body 300, which can ensure that after the helmet body 300 is inserted from the opening 115 into the cavity 116, it is not easy to slide out from between the first clamping portion 111 and the second clamping portion 112.

[0048] Please continue reading Figure 4-Figure 6In order to facilitate the installation and disassembly of the clip body 110 and the connecting frame 120, the clip 100 in this embodiment also includes a clamping nut 200, and the transition portion 113 and the connecting frame 120 are detachably connected through the clamping nut 200. By rotating the clamping nut 200, the tightness between the clip body 110 and the connecting frame 120 can be adjusted, so that the direction of the device can be adjusted at a small angle. Of course, other structures such as threaded fasteners can also be used to replace the clamping nut 200 to achieve a detachable connection between the clip body 110 and the connecting frame 120, which is not limited here. In addition, the clip body 110 can also be fixedly connected to the connecting frame 120, such as welding, which is not limited here.

[0049] In order to ensure that the clip 100 fits tightly with the helmet body 300, so that the external device fits tightly with the helmet body 300, and reduce the risk of the operator hitting nearby objects during the rotation process, please refer to Figure 4 In this embodiment, the first clamping portion 111 is connected to the transition portion 113 by an arc transition, and the second clamping portion 112 is connected to the transition portion 113 by an arc transition. Moreover, the first clamping portion 111 is arranged at an angle to the central axis 121 of the connecting frame 120 .

[0050] See also Figure 5 In order to adapt to different types of safety helmets 1000, the second clamping portion 112 of the second clip 100 in this embodiment includes a first connecting portion 1121 and a clamping portion 1122, the first connecting portion 1121 is parallel to the first clamping portion 111; one end of the first connecting portion 1121 is connected to the transition portion 113, and the other end of the first connecting portion 1121 is connected to the clamping portion 1122 at an angle; the inner wall of the clamping portion 1122 is provided with a clamping piece 114, and there is a gap between the clamping piece 114 and the transition portion 113.

[0051] See also Figure 6 The clip 100 provided in this embodiment is relatively Figure 5 In the clip 100 shown, the inner wall of the first clamping portion 111 is provided with a protrusion 1111 for mounting another type of helmet 1000. By providing the protrusion 1111, the helmet body 300 can be clamped into the cavity 116 between the first clamping portion 111 and the second clamping portion 112 to prevent the helmet body 300 from slipping out. Of course, the inner wall of the first clamping portion 111 can also be provided with other structures according to the type of helmet 1000 on which an external smart device needs to be mounted, which is not limited here.

[0052] In summary, the clip 100 includes a clip body 110 and a connecting frame 120. The clip body 110 includes a first clamping portion 111, a second connecting portion 1141 and a transition portion 113 in sequence. One end of the transition portion 113 is connected to the first clamping portion 111, and the other end of the transition portion 113 is connected to the second clamping portion 112; the inner wall of the first clamping portion 111 is provided with a clamping member 114 or the inner wall of the second clamping portion 112 is provided with a clamping member 114. The connecting frame 120 is connected to the transition portion 113, and the connecting frame 120 is used to connect an external device. The first clamping portion 111 and the second clamping portion 112 can be moved closer or farther from each other under pressure, so as to make the clamping member 114 clamp or release the helmet body 300. By setting the clip body 110, the connection or release of the clip 100 and the helmet body 300 can be realized by pressing, and the clamping member 114 is used to clamp the helmet body 300 to ensure the stability of the connection. By setting the connection frame 120, external devices such as video devices such as cameras or other audio devices, or devices combining audio and video, can be connected, so that the commander can better understand, supervise and command the work of the on-site workers based on the information fed back by audio and video. The external device is detachably connected to the helmet body 300 through the clip 100, and can be installed when needed and removed when not needed. It is also convenient for subsequent maintenance and replacement of external devices.

[0053] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A clip, characterized in that: include: A clip body (110), the clip body (110) comprising a first clamping portion (111), a transition portion (113) and a second clamping portion (112) connected in sequence; a cavity (116) having an opening (115) is formed between the first clamping portion (111) and the second clamping portion (112); the cavity (116) is used to clamp the helmet body (300) entering through the opening (115); a clamping member (114), the clamping member (114) being arranged on an inner wall of the first clamping portion (111) or an inner wall of the second clamping portion (112), the clamping member (114) being used for clamping the helmet body (300); The first clamping portion (111) and the second clamping portion (112) move away from each other under the action of force, so that the opening (115) becomes larger, thereby causing the clip (100) to detach from the helmet body (300); A connecting frame (120), the connecting frame (120) is connected to the transition portion (113), and the connecting frame (120) is used to connect external equipment.

2. The clip according to claim 1, characterized in that: From close to the transition portion (113) to far away from the transition portion (113), the distance between the first clamping portion (111) and the second clamping portion (112) gradually decreases.

3. The clip according to claim 2, characterized in that: The first clamping portion (111) is connected to the transition portion (113) by a circular arc transition, and the second clamping portion (112) is connected to the transition portion (113) by a circular arc transition.

4. The clip according to claim 3, characterized in that: The first clamping portion (111) is arranged at an angle to the central axis (121) of the connecting frame (120).

5. The clip according to claim 2, characterized in that: The second clamping portion (112) comprises a first connecting portion (1121) and a clamping portion (1122); the first connecting portion (1121) is parallel to the first clamping portion (111); one end of the first connecting portion (1121) is connected to the transition portion (113), and the other end of the first connecting portion (1121) is connected to the clamping portion (1122) at an angle; a clamping piece (114) is provided on the inner wall of the clamping portion (1122), and a gap is formed between the clamping piece (114) and the transition portion (113).

6. The clip according to claim 5, characterized in that: The inner wall of the first clamping portion (111) is provided with a protrusion (1111).

7. The clip according to claim 1, characterized in that: The clip (100) further comprises a loose nut (200), and the transition portion (113) and the connecting frame (120) are detachably connected via the loose nut (200).

8. A safety helmet equipment installation device, characterized in that: It comprises the clip (100) according to any one of claims 1 to 7 and a smart device, wherein the smart device is connected to the clip (100) via the connecting frame (120).

9. A safety helmet, characterized in that: The invention comprises a helmet body (300) and the clip (100) according to any one of claims 1 to 7, wherein an edge (310) of the helmet body (300) is provided with a mounting hole (320), and the clip (100) is clamped on the edge (310) of the helmet body (300) through the mounting hole (320).

10. A safety helmet, characterized in that: It comprises the clip (100) as described in any one of claims 1 to 7, a helmet body (300) and a smart device, wherein the edge (310) of the helmet body (300) is provided with a mounting hole (320), and the clip (100) is clamped on the edge (310) of the helmet body (300) through the mounting hole (320); and the smart device is connected to the clip (100) through the connecting frame (120).