Lightweight turnover type helmet pendant

Abstract

The utility model belongs to the field of helmet auxiliary accessories, and particularly relates to a light-weight overturning type helmet hanging piece which comprises a mounting assembly, an adjusting assembly and a locking assembly. A mounting hole is formed in the mounting assembly, an opening and a first guide groove are formed in the side wall of the mounting hole, and the first guide groove communicates with the opening; the adjusting assembly comprises a pushing shaft, a guide nail, a sleeve, a first spring, a handle lock nail, a sleeve lock nail and an adjusting handle. A second guide groove corresponding to the first guide groove is formed in the sleeve; a nail hole matched with the guide nail is formed in the pushing shaft; a cam is arranged on the adjusting handle; the sleeve is arranged in the mounting hole, the first spring is arranged in the sleeve, the pushing shaft is inserted into the first positioning hole and the mounting hole, and the guide nail is inserted into the first guide groove, the second guide groove and the nail hole; a cam of the adjusting handle is embedded in the kidney-shaped groove and connected to the locking assembly through a handle lock pin. The sleeve lock pin penetrates through the second positioning hole and is connected to the sleeve. Therefore, the existing technical problems are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of helmet auxiliary accessories, specifically relates to a light weight turnover type helmet pendant. BACKGROUND

[0002] With the continuous development of science and technology, more and more enthusiasts begin to use head-mounted optical instruments, such as AR / VR glasses, action cameras, night vision goggles and other optical equipment. When using these instruments, users need to hold other devices or operate other instruments, so these devices usually need to be hung on the helmet to free the hands, which is generally realized by various helmet pendants, and the use position of the optical equipment needs to be adjusted after installation, so that the human eye can be aligned with the optical instrument to achieve good visual effect. In addition, during the use of head-mounted optical instruments, switching between naked eye observation and device observation is often required, and the helmet pendant needs to have a turnover function to support the user to switch between the device and the naked eye to meet the application requirements of different scenes.

[0003] Through analysis of the existing technology and related patents, the existing helmet pendant technology mainly has the following defects, which can be summarized as three core problems:

[0004] 1. The structure design is not suitable for civilian scenarios and is not lightweight enough. The helmet pendant was first used in the military field and required to be sturdy and durable, so most helmet pendants designed for military scenarios are usually thick and heavy, with multiple degree-of-freedom adjustment mechanisms to meet the requirements of very harsh environments. The weight of the military night vision pendant often exceeds 150g, which affects the comfort and continuous use time of the civilian user who has not received professional training, and is not suitable for civilian lightweight scenarios. For example, the existing pendant (such as CN115435198A) is designed based on military requirements, uses a multi-layer thick plate structure and metal materials to ensure strength, and even after reducing the weight slot, the overall weight still exceeds 150g, which will press the user's neck for a long time and cannot meet the demand for lightweight in civilian sports and entertainment scenarios.

[0005] 2. The turnover mechanism lacks stable locking function and is prone to safety hazards. To achieve multi-degree-of-freedom adjustment and turnover, a turnover mechanism is usually provided on the pendant, so that the part directly connected with the optical equipment is turned over with the optical equipment. After turning over, there is still a problem that the user feels that the line of sight is blocked due to the small upward turning distance. The optical instrument can be turned up to the top of the helmet or turned down to the human eye through the existing helmet pendant, but most existing pendants do not have a locking structure, which can easily cause the device to accidentally turn down and bump into the user. In civilian sports scenarios, it will also shake back and forth, affecting the user experience.

[0006] Most of the hanging pieces (such as CN115435198A, CN118664263A) only rely on bearings or pre-pressure to fix the turnover position, lack of mechanical locking device. In the case of violent movement or external force impact, the optical equipment is easy to accidentally turn over, there is a risk of knocking the user, and it cannot be reliably fixed in the required position.

[0007] III. The turnover mechanism is exposed, and the environmental adaptability is poor. The open structure is easy to be polluted and stuck. Most of the turnover mechanisms are realized by digging grooves, but the grooves are often exposed outside and can be directly seen. However, the head-wearing scene is usually harsh, with a lot of dust and rain. The groove exposed outside is easy to collect dust and rain, and too much accumulated dust and rain will cause the entire hanging piece to fail, or even completely stuck and unable to use.

[0008] For example, the patents CN218599410U and CN208107599U both use exposed grooves or slotted turnover mechanisms. Dust and rain are easy to enter the internal mechanical structure, leading to pollution and sticking. In outdoor sports or dusty scenes, the reliability is very low, and the service life is shortened.

[0009] Based on the technical situation, the existing helmet hanging pieces do not balance between lightweight design, turnover stability and environmental protection, resulting in poor user experience and safety hazards in civilian scenarios. Therefore, it is urgent to design a helmet hanging piece with lightweight, reliable locking and dustproof and waterproof capability to meet the needs of civilian sports and daily use. Invention content

[0010] The purpose of the present application is to provide a lightweight turnover type helmet hanging piece to solve at least one of the technical problems in the background art.

[0011] In order to achieve the above-mentioned purpose, the present application provides a lightweight turnover type helmet hanging piece for a helmet, wherein the helmet is provided with dried cuttlefish;

[0012] The lightweight turnover type helmet hanging piece comprises a mounting assembly, an adjusting assembly and a locking assembly. The mounting assembly is used to connect the dried cuttlefish, the locking assembly is used to connect the equipment, and the locking assembly is rotatably connected to the mounting assembly through the adjusting assembly.

[0013] Among them, the mounting assembly is provided with a mounting hole extending along the X direction, the side wall of the mounting hole is provided with an open port and a first guide groove, and the first guide groove extends along the X direction and is communicated with the open port.

[0014] One side of the locking assembly is provided with a first positioning hole, the other side is provided with a waist-shaped groove and a second positioning hole.

[0015] The adjusting assembly comprises a pushing shaft, a guide pin, a sleeve, a first spring, a handle lock pin, a sleeve lock pin and an adjusting handle; the sleeve is provided with a second guide slot corresponding to the first guide slot; the pushing shaft is provided with a pin hole matched with the guide pin; the adjusting handle is provided with a cam matched with the waist-shaped slot, and the cam is provided with a connecting hole matched with the handle lock pin;

[0016] The sleeve is arranged in the mounting hole, the first spring is arranged in the sleeve, the pushing shaft is inserted into the first positioning hole and the mounting hole, and the guide pin is inserted into the first guide slot, the second guide slot and the pin hole, so as to constrain the freedom of the pushing shaft, and only the pushing shaft can move along the first guide slot;

[0017] The cam of the adjusting handle is embedded in the waist-shaped slot and connected to the locking assembly through the handle lock pin; the sleeve lock pin passes through the second positioning hole and is connected to the sleeve.

[0018] When the pushing shaft is pressed, it can move in the X direction to release the locking of the sleeve position; the adjusting handle is twisted so that the locking assembly can be flipped relative to the mounting assembly.

[0019] In a possible design, the mounting assembly comprises an adjusting seat, a positioning seat and a locking hand wheel, the adjusting seat is provided with the mounting hole to connect the locking assembly; the positioning seat is used to connect the dried cuttlefish;

[0020] The adjusting seat is provided with a locking slot, the positioning seat is provided with a dovetail plate matched with the locking slot, and the dovetail plate is movably embedded in the locking slot; the locking hand wheel is screwed to the adjusting seat and pressed against the dovetail plate.

[0021] In a possible design, the adjusting seat comprises a main body part, an inclined part and a protruding part, the inclined part is provided with the mounting hole; the main body part is provided with the locking slot;

[0022] The protruding part is formed on the main body part, and the protruding part is provided with a screw hole, and the locking hand wheel is arranged in the screw hole; the axis direction of the screw hole is perpendicular to the plane where the locking slot is located.

[0023] In a possible design, the positioning seat comprises a base, a second spring, a clamping block, a pin column, a pin column and a push plate, the base is used to be installed on the dried cuttlefish, and the base is provided with a positioning slot extending in a first direction; the clamping block is movably embedded in the positioning slot; the second spring is located in the positioning slot, and the two ends of the second spring are respectively pressed against the base and the clamping block;

[0024] The base and the clamping block are provided with an insertion slot extending along a second direction, and the push plate is embedded in the insertion slot; wherein the push plate is provided with an inclined slot matched with the pin column, and the two sides of the inclined slot are provided with side slots, the base is provided with positioning holes corresponding to the side slots, and the clamping block is provided with pin holes corresponding to the inclined slot; the dovetail plate is connected to the base;

[0025] The pin column is inserted into the positioning hole and the side slot, and the pin column is inserted into the pin hole and the inclined slot; when the push plate moves along the second direction, the clamping block can be pushed to move, so that the clamping block can be embedded in the groove body of the dried cuttlefish or separated from the groove body.

[0026] In a possible design, the dovetail plate is provided with an observation hole to expose the second spring.

[0027] In a possible design, the clamping block is provided with a spring hole, and the second spring is partially coaxially embedded in the spring hole.

[0028] In a possible design, the locking assembly includes a base, a dovetail base, a dovetail handle, a locking handle, a third spring and a fourth spring, the base is used to connect the mounting assembly, and the base is provided with a U-shaped groove matched with the dovetail base; the dovetail base is embedded in the U-shaped groove and movably embedded in the base through a guide rail; the outer side of the base is provided with a tooth groove in a strip shape, the dovetail base is provided with a first shaft hole and a second shaft hole, the first shaft hole penetrates through the dovetail base, the second shaft hole is located above the first shaft hole, and the axes of the two are cross arranged; the dovetail base is further provided with a slot opening matched with the locking handle;

[0029] The dovetail handle is provided with a vertical hole matched with the third spring and a first pin hole matched with the first shaft hole, and the locking handle is provided with a clamping tooth and a second pin hole matched with the second shaft hole;

[0030] The third spring is embedded in the vertical hole and presses against the dovetail base; a first knurled pin is inserted into the first shaft hole and the first pin hole to constrain the position of the dovetail handle relative to the dovetail base, and when the dovetail handle is pressed, the device can be locked or released;

[0031] The locking handle is arranged in the slot opening and presses the fourth spring against the dovetail base, and a second knurled pin is inserted into the second shaft hole and the second pin hole to constrain the position of the locking handle relative to the dovetail base, and when the locking handle is pressed, the clamping tooth can be clamped in the tooth groove or separated from the tooth groove, so that the dovetail base can move along the guide rail.

[0032] In a possible design, the teeth are provided as at least two teeth matched with the tooth grooves.

[0033] In a possible design, the bottom wall of the notch is provided with an arc-shaped groove matched with the fourth spring.

[0034] In a possible design, the dovetail handle is in the shape of a broken line, and the end of the dovetail handle is provided with an anti-skid boss.

[0035] When axial pressure (X direction) is applied to the push shaft, the push shaft compresses the first spring and moves along the first guide groove of the mounting assembly, driving the guide pin to slide in the second guide groove of the sleeve. The sliding of the guide pin releases the constraint on the sleeve, allowing the sleeve to rotate with the locking assembly, thereby releasing the locking of the flip angle. After the pressure is released, the first spring returns to its original position, the push shaft rebounds, and the guide pin re-embeds in the guide groove, completing the mechanical locking.

[0036] The cam of the adjustment handle is embedded in the waist-shaped groove of the locking assembly, and the rotation of the handle drives the cam to move in the waist-shaped groove, converting the rotary motion into linear displacement of the locking assembly. The eccentric design of the cam provides a lever effect, and through the cooperation of the handle pin and the waist-shaped groove, the locking assembly can be flipped at multiple angles (e.g., 0° to 90°) relative to the mounting assembly, and the flip position stability is maintained through the fixation of the sleeve pin and the second positioning hole.

[0037] In specific applications, the user presses the push shaft (in the X direction), compresses the first spring, and the guide pin slides along the first guide groove and the second guide groove, releasing the locking between the sleeve and the mounting assembly. Twisting the adjustment handle, the cam pushes the locking assembly to rotate around the sleeve in the waist-shaped groove, driving the optical device (such as AR / VR glasses) to flip up or down to the target angle. After releasing the push shaft, the first spring returns to its original position, the guide pin re-embeds in the guide groove, and the sleeve is locked, fixing the flip position. When the push shaft is not operated, the guide pin is kept engaged with the guide groove by the pre-tightening force of the first spring, and the sleeve and the mounting assembly form a rigid connection, ensuring that the flipped optical device will not be accidentally displaced under movement or external force impact.

[0038] By the technical scheme, the first guide groove and the second guide groove are hidden inside the mounting hole, so that the exposed groove structure can be avoided, and the risk of dust and rainwater intrusion can be reduced. Meanwhile, the hanging piece has a double locking structure. One is mechanical spring locking, and the first spring provides continuous pre-tightening force, so that basic locking is realized through the meshing of the guide nail and the guide groove. The other is a cam self-locking effect, and after the cam of the adjusting handle is rotated to a specific angle, self-locking is formed through the limiting of the waist-shaped groove, so that displacement caused by external force impact is resisted. The interference fit between the sleeve lock nail and the second positioning hole further increases the stability after the turning, and is suitable for sports scenes such as running and cycling. The first guide groove and the second guide groove are located inside the mounting hole, and cooperate with the closed design of the sleeve to effectively isolate dust, sand and rainwater, so that the jamming problem caused by the traditional exposed groove can be avoided. The guide nail and the guide groove adopt a hardened surface, so that the friction loss in long-term use is reduced, and the service life is prolonged. Through the combined action of pressing the push shaft and rotating the adjusting handle, a user can complete unlocking, turning and locking with one hand without the need for auxiliary tools. The cooperation of the cam and the waist-shaped groove supports continuous angle adjustment (such as 15°, 30°, 45°, etc.), so that the quick switching demand of naked-eye observation and device use can be met. The light-weight turning type helmet hanging piece is extremely suitable for scenes such as cycling and mountain climbing, and can also adapt to environments such as outdoor exploration and rainy days. The light-weight design reduces the neck pressure, is suitable for continuous operation scenes such as AR / VR entertainment and industrial inspection, and is superior to the prior art in light weight, locking reliability, environmental adaptability and operation convenience, and solves the core pain points in civilian scenes. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given below to the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any inventive labor.

[0040] Fig. 1 is a perspective structural schematic diagram of the light-weight turning type helmet hanging piece in an embodiment provided by the present application, wherein the light-weight turning type helmet hanging piece is in a folded state;

[0041] Fig. 2 is a perspective structural schematic diagram of the light-weight turning type helmet hanging piece in an embodiment provided by the present application, wherein the light-weight turning type helmet hanging piece is in an unfolded state;

[0042] Fig. 3 is an exploded structural schematic diagram of the light-weight turning type helmet hanging piece in an embodiment provided by the present application;

[0043] Fig. 4It is the cross section structure schematic diagram of the mounting assembly in the light weight turnover helmet hanging piece provided by the utility model in one embodiment,

[0044] Fig. 5 It is the explosion structure schematic diagram of the mounting assembly in the light weight turnover helmet hanging piece provided by the utility model in one embodiment,

[0045] Fig. 6 It is the explosion structure schematic diagram of the locking assembly in the light weight turnover helmet hanging piece provided by the utility model in one embodiment.

[0046] In the above drawing: 1-mounting assembly, 11-adjusting seat, 111-main body part, 112-inclined part, 113-protruding part, 1131-screw hole, 12-positioning seat, 121-base, 1211-positioning groove, 122-second spring, 123-clamping block, 1231-spring hole, 124-pin column, 125-push plate, 1251-inclined groove, 1252-side groove, 126-nail column, 13-locking hand wheel, 2-adjusting assembly, 21-push shaft, 22-guide nail, 23-sleeve, 24-first spring, 25-handle lock nail, 26-sleeve lock nail, 27-adjusting handle, 3-locking assembly, 301-first positioning hole, 302-waist-shaped groove, 303-second positioning hole, 31-base, 311-U-shaped groove, 312-tooth groove, 32-dovetail seat, 321-guide rail, 322-slot, 323-arc-shaped groove, 33-dovetail handle, 331-anti-skid boss, 332-vertical hole, 34-locking handle, 341-claw, 35-third spring, 36-fourth spring, 4-dovetail plate, 41-observation hole, 51-first knurled pin, 52-second knurled pin. DETAILED DESCRIPTION

[0047] The utility model will be further described below in combination with the drawings and specific embodiments. It needs to be explained here that the description of these embodiment modes is for helping understanding the utility model, but does not constitute the limitation of the utility model. The specific structure and functional details disclosed in the present text are only used for describing the embodiment of the utility model example. However, the utility model can be embodied in many alternative forms, and should not be understood as being limited in the embodiments set forth in the present text.

[0048] According to the specific embodiment of the utility model, a light weight turnover helmet hanging piece is provided, which is connected to the cuttlefish for the helmet provided with the cuttlefish. Figs. 1 to 6 One of the specific embodiments is shown.

[0049] Referring to Figs. 1 to 6As shown, the lightweight flip helmet accessory includes a mounting assembly 1, an adjusting assembly 2, and a locking assembly 3; the mounting assembly 1 is used to connect the squid, and the locking assembly 3 is used to connect the device, and the locking assembly 3 is rotatably connected to the mounting assembly 1 through the adjusting assembly 2; wherein the mounting assembly 1 is provided with a mounting hole extending along the X direction, the side wall of the mounting hole is provided with an open port and a first guide slot, the first guide slot extends along the X direction and is communicated with the open port; one side of the locking assembly 3 is provided with a first positioning hole 301, the other side is provided with a waist-shaped slot 302 and a second positioning hole 303; the adjusting assembly 2 includes a push shaft 21, a guide pin 22, a sleeve 23, a first spring 24, a handle lock pin 25, a sleeve lock pin 26 and an adjusting handle 27; the sleeve 23 is provided with a second guide slot corresponding to the first guide slot; the push shaft 21 is provided with a pin hole matched with the guide pin 22; the adjusting handle 27 is provided with a cam matched with the waist-shaped slot 302, and the cam is provided with a connecting hole matched with the handle lock pin 25; the sleeve 23 is arranged in the mounting hole, the first spring 24 is arranged in the sleeve 23, the push shaft 21 is inserted into the first positioning hole 301 and the mounting hole, the guide pin 22 is inserted into the first guide slot, the second guide slot and the pin hole, so as to constrain the degree of freedom of the push shaft 21, and the push shaft 21 can only move along the first guide slot; the cam of the adjusting handle 27 is embedded in the waist-shaped slot 302, and is connected to the locking assembly 3 through the handle lock pin 25; the sleeve lock pin 26 passes through the second positioning hole 303 and is connected to the sleeve 23.

[0050] When pressure is applied to the push shaft 21, it can move along the X direction to release the locking of the position of the sleeve 23; the adjusting handle 27 is twisted, so that the locking assembly 3 can be flipped relative to the mounting assembly 1.

[0051] When axial pressure (X direction) is applied to the push shaft 21, the push shaft 21 compresses the first spring 24 and moves along the first guide slot of the mounting assembly 1, driving the guide pin 22 to slide in the second guide slot of the sleeve 23. The sliding of the guide pin 22 releases the constraint of the sleeve 23, so that the sleeve 23 can rotate with the locking assembly 3, thereby releasing the locking of the flip angle. After releasing the pressure, the first spring 24 resets, the push shaft 21 rebounds to the initial position, the guide pin 22 re-embeds in the guide slot, and the mechanical locking is completed.

[0052] The cam of the adjusting handle 27 is embedded in the waist-shaped slot 302 of the locking assembly 3, and the cam is moved in the waist-shaped slot 302 by rotating the adjusting handle 27, so as to convert the rotary motion into linear displacement of the locking assembly 3. The eccentric design of the cam provides a lever effect, and through the cooperation of the handle lock pin 25 and the waist-shaped slot 302, the multi-angle flip (for example, 0° to 90°) of the locking assembly 3 relative to the mounting assembly 1 is realized, and the flip position stability is maintained through the fixing of the sleeve lock pin 26 and the second positioning hole 303.

[0053] In a specific application, the user presses the push shaft 21 (in the X direction), compresses the first spring 24, and slides the guide pin 22 along the first and second guide grooves to unlock the sleeve 23 from the mounting assembly 1. By turning the adjustment handle 27, the cam pushes the locking assembly 3 to rotate around the sleeve 23 in the waist-shaped groove 302, which drives the optical equipment (such as AR / VR glasses) to flip up or down to the target angle. After releasing the push shaft 21, the first spring 24 resets, the guide pin 22 re-embeds in the guide groove, and the sleeve 23 is locked, fixing the flipped position. When the push shaft 21 is not operated, the guide pin 22 is kept engaged with the guide groove by the pre-tightening force of the first spring 24, and the sleeve 23 forms a rigid connection with the mounting assembly 1, ensuring that the flipped optical equipment will not be accidentally displaced under movement or external force impact.

[0054] Through the above technical solution, by hiding the first and second guide grooves inside the mounting hole, the exposed groove structure can be avoided, reducing the risk of dust and rain intrusion. At the same time, the hanging piece has a double locking structure. One is the mechanical spring locking, the first spring 24 provides continuous pre-tightening force, and the basic locking is achieved through the engagement of the guide pin 22 and the guide groove; the second is the cam self-locking effect, after the cam of the adjustment handle 27 is rotated to a certain angle, it is self-locked through the limiting of the waist-shaped groove 302, resisting displacement caused by external force impact. The interference fit of the sleeve lock pin 26 and the second positioning hole 303 further increases the stability after flipping, suitable for sports scenes such as running and cycling. The first and second guide grooves are located inside the mounting hole, cooperating with the closed design of the sleeve 23, effectively isolating dust, sand and rain, avoiding the jamming problem caused by traditional exposed grooves. The guide pin 22 and the guide groove adopt a hardened surface to reduce friction wear during long-term use and prolong the service life. Through the combined action of pressing the push shaft 21 and rotating the adjustment handle 27, the user can complete the unlocking, flipping and locking with one hand without the need for auxiliary tools. The cooperation of the cam and the waist-shaped groove 302 supports continuous angle adjustment (such as 15°, 30°, 45°, etc.), meeting the rapid switching needs of naked eye observation and device use. The lightweight flip helmet hanging piece is extremely suitable for cycling, mountaineering and other scenes, and can also adapt to outdoor exploration, rainy weather and other environments. The lightweight design reduces neck pressure, is suitable for AR / VR entertainment, industrial inspection and other continuous operation scenes, and is superior to existing technologies in lightweight, locking reliability, environmental adaptability and operation convenience, solving the core pain points in civilian scenarios.

[0055] Further, the main body of the mounting assembly 1, the adjustment assembly 2 and the locking assembly 3 (excluding springs, screws and other parts) are made of lightweight alloy or high-strength engineering plastic, combined with the integrated structure of the sleeve 23 and the push shaft 21, avoiding the traditional multi-layer thick plate design, and the overall weight can be controlled below 50g (significantly lower than the existing 150g military hanging piece).

[0056] In an embodiment provided in the present disclosure, the mounting assembly 1 comprises an adjusting seat 11, a positioning seat 12, and a locking hand wheel 13. The adjusting seat 11 is provided with a mounting hole for connecting the locking assembly 3. The positioning seat 12 is used for connecting the squid ink. The adjusting seat 11 is provided with a locking groove. The positioning seat 12 is provided with a dovetail plate 4 matched with the locking groove. The dovetail plate 4 is movably embedded in the locking groove. The locking hand wheel 13 is screwed on the adjusting seat 11 and presses against the dovetail plate 4.

[0057] The dovetail plate 4 on the positioning seat 12 is embedded in the locking groove of the adjusting seat 11, forming a dovetail groove guide rail 321 structure. By manually pushing the adjusting seat 11 or the positioning seat 12, the dovetail plate 4 can slide along the X direction (or other set direction) of the locking groove, so as to realize the relative position adjustment (for example, forward and backward translation) between the adjusting seat 11 and the positioning seat 12. After adjusting to the target position, the locking hand wheel 13 is rotated to rotate into the direction of the dovetail plate 4. The end of the hand wheel presses against the surface of the dovetail plate 4. By increasing the friction between the dovetail plate 4 and the locking groove, the rigid fixation of the adjusting seat 11 and the positioning seat 12 is realized, preventing accidental sliding.

[0058] Through the dovetail groove guide rail 321 structure, the user can manually adjust the front and back position of the adjusting seat 11 relative to the positioning seat 12 (for example, adjust the distance between the optical equipment and the human eye), adapt to different head shapes, pupil distances, or equipment sizes, and improve the universality. The threaded tightening design of the locking hand wheel 13 allows one-handed operation. Only the rotation of the hand wheel is needed to complete the position fixation or release, without the need for additional tools. The trapezoidal cross-section cooperation of the dovetail plate 4 and the locking groove can resist Z direction (vertical direction) displacement and torsional moment during sliding, avoiding the inclination or deviation of the adjusting seat 11 due to external force (such as equipment weight). The locking hand wheel 13 directly presses the surface of the dovetail plate 4, and uses the contact surface of metal or high-friction material to realize stable locking, which can bear the vibration impact in the motion scene (such as running, cycling).

[0059] The adjusting seat 11 and the positioning seat 12 adopt a split design, avoiding the redundant weight of the traditional integrated structure. At the same time, through the dovetail groove, a compact connection is realized, and the overall weight is further reduced. The positioning seat 12 can be adapted to different models of helmets or squid ink (assuming helmet base 31). The adjusting seat 11 can be compatible with a variety of locking assemblies 3 (such as different brands of optical equipment), expanding the application scenarios of the hanging piece. The cooperation structure of the locking groove and the dovetail plate 4 is hidden inside the adjusting seat 11, avoiding direct invasion of dust and rain into the guide rail 321 sliding surface, reducing the risk of pollution and jamming (further strengthened protection in combination with the sleeve 23 closed design).

[0060] In the present disclosure, the contact surface of the dovetail plate 4 and the locking groove is subjected to hardening treatment or wear-resistant coating (such as anodized aluminum, Teflon), prolonging the sliding adjustment life.

[0061] Specifically, the adjusting seat 11 includes a main body part 111, an inclined part 112, and a protruding part 113, the inclined part 112 is provided with a mounting hole; the main body part 111 is provided with a locking groove; the protruding part 113 is formed on the main body part 111, and the protruding part 113 is provided with a threaded hole 1131, and the locking hand wheel 13 is arranged in the threaded hole 1131; wherein the axis direction of the threaded hole 1131 is perpendicular to the plane where the locking groove is located.

[0062] The locking groove on the main body part 111 and the dovetail plate 4 of the positioning seat 12 form a sliding pair, allowing the user to linearly move the adjusting seat 11 along the X direction (or other set direction), realizing the front and back position adjustment of the optical equipment (such as adapting to different head types or pupil distances). The dovetail groove structure of the locking groove can resist displacement and rotational moment in the Z direction (vertical direction), avoiding the deviation of the adjusting seat 11 caused by the weight of the equipment or external force, and ensuring the stability of the adjusted position. The inclined part 112 is provided with a mounting hole for connecting the locking assembly 3 (such as the optical equipment interface), and the axis direction thereof can be pre-set according to the angle of the line of sight of the human eye (for example, inclined downward by 15°), so that the equipment is naturally aligned with the user's field of view after installation, reducing the need for additional angle adjustment. The inclined part 112 is connected to the main body part 111 through a circular arc transition (rather than a right angle design), dispersing stress concentration, avoiding structural fracture caused by frequent adjustment or external force impact, and reducing material thickness to achieve lightweight.

[0063] The axis of the threaded hole 1131 on the protruding part 113 is perpendicular to the plane of the locking groove, so that the pressure direction generated when the locking hand wheel 13 is screwed in is perpendicular to the sliding direction of the dovetail plate 4, maximizing the friction force (the product of the normal force and the friction coefficient), achieving a more efficient locking effect. The extension design of the protruding part 113 makes the position of the locking hand wheel 13 protrude from the main body part 111, facilitating single-handed rotation operation by the user (such as pressing the adjusting seat 11 with the thumb and rotating the hand wheel with the index finger), meeting the ergonomic requirements. The protruding part 113 is integrated on the side of the main body part 111, avoiding additional increase in the volume of the adjusting seat 11, maintaining the compactness of the overall structure, and being suitable for space-limited scenarios such as helmets.

[0064] Through the circular arc transition and split design, the structural rigidity is maintained while the material usage is reduced, and the overall weight can be controlled within 15g (traditional metal adjusting seat 11 is about 30-50g). The perpendicular threaded hole 1131 direction makes the locking hand wheel 13 pressure directly act on the sliding surface of the dovetail plate 4, and the locking force is increased by 50% compared with the parallel threaded hole 1131 design (traditional scheme), ensuring no slip during intense exercise. The combination of the protruding hand wheel of the protruding part 113 and the pre-set angle of the inclined part 112 allows the user to complete position adjustment and locking in only two steps of "sliding-rotation", and the operation time is shortened to within 3 seconds (the traditional scheme needs 5-10 seconds).

[0065] In the present disclosure, the positioning seat 12 comprises a base 121, a second spring 122, a clamping block 123, a pin column 124 and a push plate 125. The base 121 is used to be mounted on the dried cuttlefish, and the base 121 is provided with a positioning groove 1211 extending in a first direction. The clamping block 123 is movably embedded in the positioning groove 1211. The second spring 122 is located in the positioning groove 1211, and the two ends of the second spring 122 are respectively abutted against the base 121 and the clamping block 123. The base 121 and the clamping block 123 are provided with an insertion slot extending in a second direction, and the push plate 125 is embedded in the insertion slot. The push plate 125 is provided with a slanted groove 1251 matched with the pin column 124, and the two sides of the slanted groove 1251 are provided with side grooves 1252. The base 121 is provided with a positioning hole corresponding to the side grooves 1252, and the clamping block 123 is provided with a pin hole corresponding to the slanted groove 1251. The dovetail plate 4 is connected to the base 121. The pin column 126 is inserted into the positioning hole and the side grooves 1252, and the pin column 124 is inserted into the pin hole and the slanted groove 1251. When the push plate 125 moves in the second direction, the clamping block 123 can be driven to move so as to be embedded in or separated from the groove body of the dried cuttlefish.

[0066] When the user pushes the push plate 125 in the second direction (for example, Y direction), the slanted groove 1251 on the push plate 125 slides relative to the pin column 124 of the clamping block 123. The inclination angle of the slanted groove 1251 converts the longitudinal movement of the push plate 125 into the transverse movement (first direction, for example, X direction) of the clamping block 123. When the clamping block 123 moves, the second spring 122 is compressed or released. After the external force is removed, the second spring 122 pushes the clamping block 123 to reset, so as to realize automatic rebound or keep the locking state. The clamping block 123 is driven to transversely extend by the push plate 125, and is embedded in the groove body of the dried cuttlefish, so as to realize rigid fixation through the interference fit between the clamping block 123 and the groove body. The push plate 125 moves reversely, the slanted groove 1251 drives the pin column 124 to make the clamping block 123 retract into the positioning groove 1211, and separates from the groove body of the dried cuttlefish, so as to realize quick disassembly. The side grooves 1252 of the push plate 125 and the positioning hole on the base 121 are matched through the pin column 126, so as to limit the push plate 125 to slide only in the second direction, and prevent deviation or inclination. The sliding range of the pin column 126 in the side grooves 1252 controls the movement stroke of the push plate 125, and avoids structure damage caused by excessive pushing.

[0067] By the above technical solution, the user only needs to push and pull the push plate 125 in the second direction (for example, slide up and down), so as to drive the clamping block 123 to expand or contract laterally through the inclined groove 1251, realize the quick embedding or separation with the dried cuttlefish groove body, and the operation time can be shortened to 1 second (more than 10 seconds are needed for traditional screw fixing). The expansion and contraction stroke of the clamping block 123 is controlled by the inclination angle of the inclined groove 1251 and the pre-tightening force of the second spring 122, which can be adapted to dried cuttlefish groove bodies of different depths or widths (tolerance range ± 2 mm), and the compatibility of the hanging piece and the helmet is improved. The second spring 122 continuously applies a pre-tightening force to the clamping block 123, eliminates the fitting gap between the clamping block 123 and the dried cuttlefish groove body, and avoids shaking or abnormal sound of the equipment due to vibration.

[0068] The inclined groove 1251 of the push plate 125 converts the longitudinal pushing force into lateral clamping block 123 movement, eliminates the traditional gear or lever structure, reduces the number of parts, and reduces the overall weight. The clamping block 123, the push plate 125 and the second spring 122 are hidden inside the base 121, avoiding direct contact of dust and rain with moving parts.

[0069] In the present disclosure, the base 121 and the clamping block 123 are made of aluminum alloy anodized or composite material to prevent rust in a humid environment.

[0070] Further, the dovetail plate 4 is provided with an observation hole 41 to expose the second spring 122. Through the observation hole 41 on the dovetail plate 4, the user can directly observe the compression or expansion state of the second spring 122 in the base 121, and judge the position of the clamping block 123 (locked or unlocked) in real time. When the push plate 125 moves, the lateral expansion and contraction of the clamping block 123 causes the second spring 122 to deform, and the observation hole 41 indirectly reflects the embedding degree of the clamping block 123 and the dried cuttlefish groove body through the state change of the second spring 122 (for example, the second spring 122 is completely compressed = the clamping block 123 is completely locked). The user can judge whether the locking threshold is reached according to the deformation amount of the second spring 122 (such as the coil spacing of the second spring 122 visible in the observation hole 41), to avoid "false locking" (the clamping block 123 is not completely embedded in the groove) caused by insufficient stroke of the push plate 125.

[0071] The opening of the observation hole 41 on the dovetail plate 4 reduces the amount of material used, further reducing the weight of the positioning seat 12 (about 10%-15% lighter than the solid dovetail plate 4).

[0072] In the present disclosure, the edge of the observation hole 41 adopts a rounded corner design to avoid stress concentration caused by the opening of the dovetail plate 4, and maintain the structural strength.

[0073] In the present disclosure, the card block 123 is provided with a spring hole 1231, and the second spring 122 is partially coaxially embedded in the spring hole 1231. The partial structure (such as the last 1-2 turns) of the second spring 122 is coaxially embedded in the spring hole 1231 of the card block 123, and the radial displacement of the second spring 122 is limited by the hole wall, ensuring that the second spring 122 always moves in the axial direction during compression / extension, avoiding deflection. The movement direction (first direction, such as X direction) of the second spring 122 and the card block 123 is coaxial, so that the force of the second spring 122 directly acts on the moving direction of the card block 123, reducing the energy loss or jam caused by the lateral component force. The depth of the spring hole 1231 matches the embedded length of the second spring 122 (for example, 20% of the free length of the second spring 122 is embedded), forming an initial pre-compression, ensuring that the card block 123 remains in the default position (such as retracted or extended) in the non-operation state.

[0074] In this way, the radial swing of the second spring 122 can be constrained by the spring hole 1231, avoiding friction between the second spring 122 and the side wall of the positioning groove 1211, and reducing wear. The coaxial design ensures that the second spring 122 only bears axial force, avoiding plastic deformation or fracture caused by lateral bending (no failure after 100,000 cycle tests). The spring hole 1231 fixes the end position of the second spring 122, so that the pre-tightening force of the second spring 122 remains stable even in high-frequency vibration scenarios (such as off-road motorcycles), preventing the card block 123 from being accidentally retracted due to vibration.

[0075] The second spring 122 is rigidly connected to the card block 123, and after the pushing force of the push plate 125 is removed, the second spring 122 can instantly push the card block 123 back to its original position, shortening the unlocking response time to within 0.1 seconds. The second spring 122 is partially embedded inside the card block 123, reducing the exposed length of the second spring 122, and reducing the overall thickness of the positioning seat 12 by 30% (for example, from 8mm to 5.5mm), which is suitable for narrow installation space. The spring hole 1231 replaces the traditional spring fixing bracket, reducing the number of additional parts (such as clamps and screws), and reducing the weight of the positioning seat 12 by 15%-20%.

[0076] In an embodiment provided in the present disclosure, the locking assembly 3 includes a base 31, a dovetail seat 32, a dovetail handle 33, a locking handle 34, a third spring 35, and a fourth spring 36. The base 31 is used to connect the mounting assembly 1, and the base 31 is provided with a U-shaped groove 311 matched with the dovetail seat 32. The dovetail seat 32 is embedded in the U-shaped groove 311 and movably embedded in the base 31 through a guide rail 321. The outer side of the base 31 is provided with a strip-shaped tooth groove 312, the dovetail seat 32 is provided with a first shaft hole and a second shaft hole, the first shaft hole penetrates through the dovetail seat 32, the second shaft hole is located above the first shaft hole, and the axes of the two holes are crosswise arranged. The dovetail seat 32 is further provided with a slot 322 matched with the locking handle 34.

[0077] The dovetail handle 33 is provided with a vertical hole 332 matched with the third spring 35 and a first pin hole matched with the first shaft hole, and the locking handle 34 is provided with a clamping tooth 341 and a second pin hole matched with the second shaft hole;

[0078] The third spring 35 is embedded in the vertical hole 332 and presses against the dovetail base 32, and the first knurled pin 51 is inserted into the first shaft hole and the first pin hole to constrain the position of the dovetail handle 33 relative to the dovetail base 32, so that the device can be locked or released when the dovetail handle 33 is pressed;

[0079] The locking handle 34 is arranged in the slot 322 and presses the fourth spring 36 against the dovetail base 32, and the second knurled pin 52 is inserted into the second shaft hole and the second pin hole to constrain the position of the locking handle 34 relative to the dovetail base 32, so that the clamping tooth 341 can be clamped in the tooth groove 312 or separated from the tooth groove 312 when the locking handle 34 is pressed, so that the dovetail base 32 can move along the guide rail 321.

[0080] In operation, the user presses the dovetail handle 33 to rotate around the first knurled pin 51 (inserted into the first shaft hole and the first pin hole) and compresses the third spring 35. When the dovetail handle 33 is pressed down, the end thereof (or an additional clamping structure) abuts against a device interface (such as an AR glasses clamping groove), and the device is fixed by friction or mechanical engagement. After the dovetail handle 33 is released, the third spring 35 rebounds to push the dovetail handle 33 back to the original position and release the device. The pre-tightening force of the third spring 35 keeps the dovetail handle 33 in the open or closed default position in the non-operation state, avoiding accidental falling of the device. The user presses the locking handle 34 to compress the fourth spring 36 and drive the clamping tooth 341 to separate from the tooth groove 312 of the base 31. The dovetail base 32 freely slides (for example, X-direction translation) along the guide rail 321 of the base 31 to adjust the device mounting position (such as adapting to the front-back offset of the helmet). After the locking handle 34 is released, the fourth spring 36 pushes the clamping tooth 341 to re-engage the tooth groove 312 and fix the position of the dovetail base 32.

[0081] In practical application, the strip-shaped teeth of the tooth groove 312 provide discrete gear positions (such as one gear every 2 mm), and the user can select the adaptive position according to the needs.

[0082] Through the above technical scheme, the dovetail base 32 cooperates with the U-shaped slot 311 of the base 31 to realize a compact sliding structure, replacing the traditional bolt adjustment, and the weight is reduced by 40% (the total weight of the dovetail base 32 component is less than 25g). The base 31 can adapt to different specifications of the dovetail base 32 (such as GoPro, AR glasses interface), and cross-brand device support can be realized by replacing the dovetail base 32. The third spring 35 ensures the stability of the device clamping and prevents vibration from causing the device to shake. The engagement of the clamping tooth 341 and the tooth groove 312 provides rigid positioning, can resist lateral tension, and avoids accidental displacement of the dovetail base 32.

[0083] The user can fix the device by pressing the dovetail handle 33 with one hand, which takes less than 1 second. After pressing the locking handle 34, the user can slide the dovetail base 32, and then the device is locked by releasing the locking handle 34, which supports quick fine adjustment during movement. When the tooth groove 312 is engaged, tactile and audible feedback (a “click” sound) is generated, helping the user to confirm that the adjustment is in place. The tooth groove 312 and the guide rail 321 are built into the U-shaped groove 311 of the base 31, avoiding direct contact of dust and rain with the transmission components.

[0084] In the present disclosure, the surfaces of the first spring 24, the second spring 122, the third spring 35, and the fourth spring 36 are nickel-plated to prevent rust in a humid environment.

[0085] Specifically, the clamping teeth 341 are arranged as at least two teeth that are adapted to the tooth groove 312. The at least two clamping teeth 341 simultaneously engage the tooth groove 312 of the base 31, forming multiple-point contact and dispersing the locking force (for example, under a 10 kg pulling force, each clamping tooth 341 only bears 5 kg). The multi-tooth layout (for example, symmetrical distribution) can resist the torsional moment (for example, Z-axis rotation) caused by the weight of the device or external force, avoiding the shift of the dovetail base 32 in the locked state. In addition, if one clamping tooth 341 fails due to wear or contamination, the remaining clamping teeth 341 can still maintain the locking function, ensuring that the device does not fall off. The multiple teeth share the engagement force, reducing the wear rate of the individual tooth groove 312 and prolonging the overall service life.

[0086] In the present disclosure, the clamping teeth 341 adopt trapezoidal or arc-shaped tooth shapes to enhance the engagement strength and anti-pollution ability.

[0087] Further, the bottom of the tooth groove 312 is provided with a chip removal groove, thereby facilitating the removal of dust or foreign matter.

[0088] In one embodiment provided in the present disclosure, the bottom wall of the slot 322 is provided with an arc-shaped groove 323 that is adapted to the fourth spring 36. The curvature radius of the arc-shaped groove 323 matches the outer diameter of the fourth spring 36, so that the end of the fourth spring 36 naturally fits the groove wall, avoiding the radial deviation of the fourth spring 36 during compression / extension. In addition, the arc-shaped groove 323 can also guide the fourth spring 36 to move in the axial direction (perpendicular to the bottom wall of the slot 322), ensuring that the force of the fourth spring 36 directly acts on the locking handle 34, reducing the energy loss or jamming caused by the lateral component force.

[0089] By the above technical solution, the arc-shaped groove 323 constrains the radial swing of the fourth spring 36, avoids the friction between the fourth spring 36 and the side wall of the slot 322, and reduces the wear. The axial alignment design ensures that the fourth spring 36 only bears axial force, avoiding plastic deformation or fracture caused by lateral bending. The arc-shaped groove 323 fixes the end position of the fourth spring 36, so that the pre-tightening force of the fourth spring 36 can remain stable even in a high-frequency vibration scene (such as off-road motorcycle), preventing the locking handle 34 from being accidentally loosened. The fourth spring 36 is rigidly connected with the arc-shaped groove 323, and after the pressing force is removed, the fourth spring 36 can instantaneously push the locking handle 34 back to its original position, shortening the unlocking response time to within 0.1 seconds.

[0090] In the present disclosure, the depth of the arc-shaped groove 323 matches the free length of the fourth spring 36 (for example, the end of the fourth spring 36 is embedded by 1-2 turns), forming an initial pre-compression, and ensuring that the locking handle 34 remains in the default position (for example, the tooth 341 engages the tooth groove 312) in the non-operation state. The arc-shaped groove 323 partially embeds the fourth spring 36 in the bottom wall of the slot 322, reducing the exposed length of the fourth spring 36, and reducing the overall thickness of the locking assembly 3 by 20% (for example, from 10 mm to 8 mm), which is suitable for narrow installation space.

[0091] The structure of the arc-shaped groove 323 can replace the traditional spring fixing bracket, reduce additional parts (such as clamps and screws), and reduce the weight of the locking assembly 3 by 10%-15%. The arc-shaped groove 323 serves as a positioning reference, and during assembly, the end of the fourth spring 36 can be automatically aligned by simply being embedded in the groove, reducing the difficulty of manual calibration (assembly efficiency is improved by 30%).

[0092] In the present disclosure, the dovetail handle 33 is in a broken line shape, and the broken line shape (such as L-shaped or Z-shaped bending) prolongs the distance between the user's force point and the rotation fulcrum (the first knurled pin 51), amplifies the pressing force through the lever principle, and reduces the required force for operation (for example, the single-handed pressing force is reduced from 10 N to 5 N). The broken line angle (such as 120° bending) matches the natural bending trajectory of the fingers, so that the pressing force direction is consistent with the compression direction of the third spring 35, and the energy loss is reduced.

[0093] The end of the dovetail handle 33 is provided with an anti-slip boss 331. The boss surface is in a granular, striped or rubber material, which increases the friction coefficient of the finger contact surface to prevent hand slipping during operation. In addition, the boss edge forms a tactile marker to help the user quickly locate the force point (especially in blind operation), shortening the operation time.

[0094] Based on the fold line design of the dovetail handle 33, it can be held naturally by the palm or fingers (such as the thumb pressing the L-shaped end), reducing the feeling of fatigue, suitable for long-term or high-frequency use, and the user can complete the locking / unlocking with one hand (for example, the thumb presses the dovetail handle 33 while riding), without distracting the line of sight or pausing the movement. The anti-slip boss 331 can still maintain reliable grip in wet, oily or gloved scenarios, avoiding accidental unlocking of the device due to slippery hands.

[0095] Finally, it should be pointed out that the utility model is not limited to the above-mentioned optional embodiments, and anyone can derive other various forms of products under the inspiration of the utility model. The above specific embodiments should not be understood as limiting the protection scope of the utility model, and the protection scope of the utility model should be defined in the claims, and the specification can be used to explain the claims.

Claims

1. A lightweight flip-up helmet hanger for a helmet having a squid on the helmet, characterized by, The light-weighted flip helmet pendant comprises a mounting assembly, an adjusting assembly and a locking assembly; the mounting assembly is used for connecting the squid, the locking assembly is used for connecting equipment, and the locking assembly is rotatably connected to the mounting assembly through the adjusting assembly; The mounting assembly is provided with a mounting hole extending along the X direction, and the side wall of the mounting hole is provided with an open port and a first guide slot extending along the X direction and communicating with the open port; One side of the locking assembly is provided with a first positioning hole, and the other side is provided with a waist-shaped slot and a second positioning hole; The adjusting assembly comprises a push shaft, a guide pin, a sleeve, a first spring, a handle lock pin, a sleeve lock pin and an adjusting handle; the sleeve is provided with a second guide slot corresponding to the first guide slot; the push shaft is provided with a pin hole matched with the guide pin; the adjusting handle is provided with a cam matched with the waist-shaped slot, and the cam is provided with a connecting hole matched with the handle lock pin; The sleeve is arranged in the mounting hole, the first spring is arranged in the sleeve, the push shaft is inserted into the first positioning hole and the mounting hole, and the guide pin is inserted into the first guide slot, the second guide slot and the pin hole, so as to constrain the freedom of the push shaft, and the push shaft can only move along the first guide slot; The cam of the adjusting handle is embedded in the waist-shaped slot and connected to the locking assembly through the handle lock pin; the sleeve lock pin passes through the second positioning hole and is connected to the sleeve.

2. The lightweight flip-flop helmet hanger of claim 1, wherein, The mounting assembly comprises an adjusting seat, a positioning seat and a locking hand wheel, the adjusting seat is provided with the mounting hole to connect the locking assembly, and the positioning seat is used for connecting the squid; The adjusting seat is provided with a locking slot, the positioning seat is provided with a dovetail plate matched with the locking slot, and the dovetail plate is movably embedded in the locking slot; and the locking hand wheel is screwed to the adjusting seat and presses against the dovetail plate.

3. The lightweight flip-flop helmet hanger of claim 2, wherein, The adjusting seat comprises a main body, an inclined part and a protruding part, and the inclined part is provided with the mounting hole; and the main body is provided with the locking slot; The protruding part is formed on the main body, and the protruding part is provided with a screw hole, and the locking hand wheel is arranged in the screw hole; and the axis direction of the screw hole is perpendicular to the plane where the locking slot is located.

4. The lightweight flip-flop helmet hanger of claim 2, wherein, The positioning seat comprises a base, a second spring, a clamping block, a pin column, a push plate and a pin column, the base is used for mounting to the squid, and the base is provided with a positioning slot extending along a first direction; the clamping block is movably embedded in the positioning slot; and the second spring is located in the positioning slot, and the two ends of the second spring press against the base and the clamping block respectively; The base and the clamping block are provided with an insertion slot extending along a second direction, and the push plate is embedded in the insertion slot; wherein the push plate is provided with an inclined slot matched with the pin column, the two sides of the inclined slot are provided with side slots, the base is provided with a positioning hole corresponding to the side slots, and the clamping block is provided with a pin hole corresponding to the inclined slot; and the dovetail plate is connected to the base. The pin column is inserted into the positioning hole and the side slot, and the pin column is inserted into the pin hole and the inclined slot; when the push plate moves in the second direction, the clamping block can be pushed to move so as to be embedded in the groove of the dried cuttle or be separated from the groove.

5. The lightweight flip-flop helmet hanger of claim 4, wherein, The dovetail plate is provided with an observation hole to expose the second spring.

6. The lightweight flip-flop helmet hanger of claim 4, wherein, The clamping block is provided with a spring hole, and the second spring is partially coaxially embedded in the spring hole.

7. The lightweight flip-flop helmet hanger of claim 1, wherein, The locking assembly comprises a base, a dovetail seat, a dovetail handle, a locking handle, a third spring and a fourth spring, the base is used for connecting to the mounting assembly, and the base is provided with a U-shaped groove matched with the dovetail seat; the dovetail seat is embedded in the U-shaped groove and movably embedded in the base through a guide rail; the outer side of the base is provided with a tooth groove in a strip shape, the dovetail seat is provided with a first shaft hole and a second shaft hole, the first shaft hole penetrates through the dovetail seat, the second shaft hole is located above the first shaft hole, and the shaft lines of the two are cross arranged; the dovetail seat is further provided with a slot matched with the locking handle; The dovetail handle is provided with a vertical hole matched with the third spring and a first pin hole matched with the first shaft hole, and the locking handle is provided with a clamping tooth and a second pin hole matched with the second shaft hole; The third spring is embedded in the vertical hole and abuts against the dovetail seat; a first knurled pin is inserted into the first shaft hole and the first pin hole to constrain the position of the dovetail handle relative to the dovetail seat, and when the dovetail handle is pressed, the device can be locked or released; The locking handle is arranged in the slot and abuts the fourth spring against the dovetail seat, and a second knurled pin is inserted into the second shaft hole and the second pin hole to constrain the position of the locking handle relative to the dovetail seat, and when the locking handle is pressed, the clamping tooth can be engaged with or separated from the tooth groove, so that the dovetail seat can move along the guide rail.

8. The lightweight flip-flop helmet hanger of claim 7, wherein, The clamping tooth is matched with at least two tooth grooves.

9. The lightweight flip-flop helmet hanger of claim 7, wherein, The bottom wall of the slot is provided with an arc-shaped groove matched with the fourth spring.

10. The lightweight flip-flop helmet hanger of claim 7, wherein, The dovetail handle is in a zigzag shape, and the end of the dovetail handle is provided with an anti-skid boss.

Images