A clip spring locking base for an outer lens of a helmet

Abstract

The utility model discloses a clamp spring locking base for helmet outer lens, locking base sets up on the helmet for with setting on the switch subassembly clamping, locking base includes the bottom support piece and the annular slide piece of activity setting on the bottom support piece, wherein, the annular slide piece is provided with the clamp spring, the clamp spring is used for clamping into the switch subassembly to realize locking, through adopting the metal clamp spring as the locking element, and its rigid locking mode is more reliable than the traditional elastic plastic buckle, and it is difficult to fail because of fatigue, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of helmet accessories technology, and in particular to a retaining spring locking base for helmet outer lens. Background Technology

[0002] Current helmet visor quick-release mechanisms mostly use plastic elastic clips or button-type locking mechanisms. While these mechanisms allow for quick disassembly, they are insufficient in terms of reliability and durability. Plastic clips are prone to fatigue and aging after repeated use, leading to a decrease in locking force and a risk of the visor accidentally falling off. Utility Model Content

[0003] The purpose of this invention is to provide a helmet anti-accidental touch unlock button that is simple in structure, easy to operate, and can effectively prevent accidental touch, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A retaining spring locking base for a helmet outer lens, the locking base being disposed on the helmet for engaging with a switch assembly disposed on the outer lens, the locking base including a base support and an annular sliding member movably disposed on the base support, wherein a retaining spring is disposed on the annular sliding member for engaging with the switch assembly to achieve locking.

[0006] Furthermore, the annular slider is provided with an annular groove, the retaining spring is embedded in the annular groove, the retaining spring is provided with a buckling part, the buckling part protrudes inward in the natural state and engages with the switch assembly.

[0007] Furthermore, the annular slider is provided with a switch hole for accommodating the switch assembly.

[0008] Furthermore, it also includes a gear adjustment structure, which includes multiple gear teeth disposed on the base support and locking points disposed on the outer lens or switch assembly. When the outer lens rotates, the locking points can engage with different gear teeth, thereby stabilizing the outer lens at multiple different opening angles.

[0009] Furthermore, the multiple gear teeth are arranged along an arc-shaped trajectory centered on the lens rotation axis.

[0010] Furthermore, a return spring is provided between the base support and the annular sliding member. The two ends of the return spring abut against the base support and the annular sliding member respectively, and the return spring is used to drive the annular sliding member to return to its original position.

[0011] Compared with the prior art, the beneficial effects of the present invention are: by using a metal snap ring as a locking element, its rigid locking method is more reliable than the traditional elastic plastic snap ring, is not prone to failure due to fatigue, and has a long service life. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional perspective schematic diagram of this utility model.

[0014] Figure 2 This is an exploded view diagram of this utility model.

[0015] Figure 3 This is a schematic diagram illustrating the use of this utility model in the locked state.

[0016] Figure 4 This is a schematic diagram illustrating the use of the unlocked state in this utility model.

[0017] As shown in the annotations in the figure:

[0018] 100. Base support; 101. Gear shifter;

[0019] 200. Annular sliding component; 201. Annular groove; 202. Switch hole;

[0020] 300. Snap ring; 301. Buckle part;

[0021] 400. Return spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. The preferred embodiments of this utility model will now be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this utility model more thorough and complete, and to fully convey the scope of this utility model to those skilled in the art.

[0023] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] In the description of this utility model, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] It should be understood that although the terms "first," "second," "third," etc., may be used to describe various components in this invention, this information should not be limited to these terms. These terms are only used to distinguish components of the same type from each other. For example, without departing from the scope of this invention, a first component may also be referred to as a second component, and similarly, a second component may also be referred to as a first component. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 2 As shown, the present invention provides a snap ring locking base for helmet outer lens, which mainly includes a base support 100, an annular sliding member 200, a snap ring 300 and a return spring 400;

[0030] The base support 100 is fixedly installed on the helmet by fastening screws; the base support 100 is provided with a plurality of gear teeth 101, which are arranged along an arc-shaped trajectory centered on the lens rotation axis, forming part of the gear adjustment structure. This structure cooperates with the locking point (not shown in the figure) provided on the outer lens or switch assembly to realize the multi-gear opening and positioning of the lens.

[0031] The annular slider 200 is movably disposed within the base support 100 and can be displaced to a certain extent along its axial direction. The center of the annular slider 200 is provided with a switch hole 202 for accommodating the insertion end from the switch assembly; the outer periphery of the annular slider 200 is provided with an annular groove 201, which communicates with the switch hole 202.

[0032] The snap ring 300 is made of elastic material such as spring steel and is elastically fitted into the annular groove 201 of the annular slider 200; the snap ring 300 has an inwardly protruding latching part 301, which maintains an inwardly protruding posture in its natural state.

[0033] The return spring 400 is disposed between the base support 100 and the annular sliding member 200, with its two ends abutting against both respectively. The return spring 400 is used to provide a return force for the annular sliding member 200.

[0034] Working principle:

[0035] Locked state: such as Figure 3 As shown, the insertion end of the switch assembly is located in the switch hole 202 of the annular slider 200; at this time, the snap-fit ​​part 301 of the snap ring 300 is tightly snapped into the corresponding slot on the switch assembly under its own elastic force, forming a rigid lock, and the return spring 400 is in a natural or slightly compressed state.

[0036] Unlocking process: such as Figure 4 As shown, when the user presses the button on the switch assembly, the button drives the internal pressing structure (which is part of the switch assembly) to move downwards, squeezing the latching part 301 of the retaining spring 300, forcing the latching part 301 to open outwards, thereby disengaging the latching part 301 from the slot of the switch assembly. At this time, the outer lens can be removed along with the switch assembly, thus unlocking and disassembling the outer lens. At the same time, the switch assembly pushes the annular slider 200 to compress the return spring 400. After the press is released, the elastic force of the return spring 400 drives the annular slider 200 to return outwards, and the latching part 301 of the retaining spring 300 also returns to its initial state.

[0037] Gear adjustment: When the user rotates the outer lens, the lens causes the locking point on it to move relative to the gear teeth 101 on the base 100. During this process, the outer lens, together with the switch assembly, causes the annular slider 200 to move slightly axially. Specifically, when switching between different gear teeth 101, the annular slider 200 compresses the return spring 400. When the switching action is completed and the locking point falls into the new gear tooth groove, the elastic force of the return spring 400 drives the annular slider 200 to return to its original position. This mechanism provides clear elastic feedback for gear switching. Through the engagement and switching of the locking point between different gear teeth 101, multi-position positioning of the lens opening angle is achieved.

[0038] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0039] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A retaining spring locking base for a helmet outer visor, the locking base being disposed on the helmet for engaging with a switch assembly disposed on the outer visor, the locking base comprising a base support (100) and an annular sliding member (200) movably disposed on the base support (100), characterized in that: A retaining ring (300) is provided on the annular slider (200), which is used to engage with the switch assembly to achieve locking.

2. The retaining spring locking base for a helmet outer lens according to claim 1, characterized in that: The annular slider (200) is provided with an annular groove (201), the snap ring (300) is embedded in the annular groove (201), the snap ring (300) is provided with a snap fastening part (301), the snap fastening part (301) protrudes inward in the natural state and engages with the switch assembly.

3. A retaining spring locking base for a helmet outer lens according to claim 1, characterized in that: The annular slider (200) is provided with a switch hole (6), which is used to accommodate the switch assembly (4).

4. A retaining spring locking base for a helmet outer lens according to claim 1, characterized in that: It also includes a gear adjustment structure, which includes multiple gear teeth (101) disposed on the base (100) and locking points disposed on the outer lens or switch assembly. When the outer lens rotates, the locking points can engage with different gear teeth (101), thereby stabilizing the outer lens at multiple different opening angles.

5. A retaining spring locking base for a helmet outer lens according to claim 4, characterized in that: The multiple gear teeth (101) are arranged along an arc-shaped trajectory centered on the lens rotation axis.

6. A retaining spring locking base for a helmet outer lens according to claim 1, characterized in that: A return spring (400) is provided between the base support (100) and the annular slider (200). The two ends of the return spring (400) abut against the base support (100) and the annular slider (200) respectively, so that the return spring (400) can drive the annular slider (200) to reset.

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