A lens flipping mechanism within a cap shell and cap shell

Abstract

The utility model relates to a kind of lens turnover mechanism and cap shell in cap shell, including fixed base, rotating support, cap band support assembly and knob, the fixed base is rotatably connected with rotating support, rotating support fixedly connected inner lens, the fixed base has locating buckle, the locating buckle passes through the locating round hole of rotating support and is buckled with locating round hole end face in axial direction;Rotating support is further provided with locating pin, and the fixed base has the matching arc slot of locating pin, the rotating support is further provided with push button. The turnover mechanism and cap shell of the utility model have the characteristics of simple structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to personal protective equipment used in the field of safety protection, and in particular to a lens flipping mechanism inside a hat shell and a hat shell. Background Technology

[0002] The helmet worn by workers is an essential piece of personal protective equipment for welders and other workers in harsh working environments in modern industrial development, protecting their eyes and faces from strong light and flying debris.

[0003] Existing caps have an outer lens to protect against fumes, dust, and metal spatter, while an inner lens effectively prevents strong light from harming the eyes. In normal situations, only the outer lens is typically needed to protect against dust, fumes, and metal spatter. However, during welding operations, the inner lens needs to be adjusted and flipped to protect the eyes. Currently, the inner lens flipping mechanism's toggle button is located on the outside of the cap, requiring installation after openings in the cap. This affects the cap's stability, makes it prone to breakage, and results in a complex and unsightly structure. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a lens flipping mechanism and a cap shell that do not affect the aesthetics and stability of the cap shell and have a simple structure.

[0005] To solve the above-mentioned technical problems, the first aspect of this utility model adopts the following technical solution: a lens flipping mechanism for an inner lens of a hat shell, comprising a fixed base, a rotating bracket, a hat strap bracket assembly, and a knob. The fixed base is rotatably connected to the rotating bracket, and the rotating bracket is fixedly connected to the inner lens. The innovation lies in that: the fixed base has a positioning buckle, which passes through the positioning hole of the rotating bracket and engages with the end face of the positioning hole in the axial direction; the rotating bracket is also provided with a positioning pin, the fixed base has an arc groove that matches the positioning pin, and the rotating bracket also has a toggle button.

[0006] Furthermore, the rotating bracket is also provided with an annular groove, and an O-ring is provided in the annular groove. The O-ring is fitted between the rotating bracket and the fixed base.

[0007] Furthermore, the hood strap bracket assembly is fixedly connected to the fixing seat via a claw on the fixing seat.

[0008] Furthermore, a fixing block is also fixedly mounted on the outer side of the locking claw of the fixing seat.

[0009] Furthermore, the rotating bracket is provided with a mounting groove, and the mounting groove has an elastic locking tongue for locking. The inner lens has a locking hole, and the locking hole on the inner lens is inserted into the mounting groove and locked in place with the elastic locking tongue.

[0010] With the above structure, the rotation of the rotating bracket can be achieved by the relative rotation between the fixed base and the rotating bracket. The oscillation button on the rotating bracket allows workers to easily rotate the rotating bracket, thereby causing the inner lens on the rotating bracket to flip for use.

[0011] The second aspect of this utility model adopts the following technical solution: a hat shell, characterized in that: the hat shell adopts the above-mentioned inner lens flipping mechanism, the hat shell further includes a shell, a hatband and an outer lens; two sets of the inner lens flipping mechanisms are fixed on both sides of the shell, and the left and right ends of the inner lens are respectively engaged with the rotating bracket of each set of inner lens flipping mechanisms.

[0012] Furthermore, the housing is clamped and secured by the knobs on both sides and the cap strap bracket.

[0013] Furthermore, the hood strap is fixed to the inside of the housing by a hood strap bracket assembly.

[0014] In summary, the advantages of this utility model over traditional technologies are as follows: the cap shell has two sets of inner lens flipping mechanisms, which are fixedly installed on both sides of the cap shell. The locking holes on both sides of the inner lens are fixed on the locking tongue of the rotating bracket. The rotating bracket can be easily moved by turning the button, thereby driving the inner lens to flip down and up. This utility model does not require additional holes in the cap shell, has a simple structure, does not affect the cap shell structure during use, and is safe and reliable. Attached Figure Description

[0015] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0016] Figure 1 This is an exploded structural diagram of Embodiment 1 of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure after installation; Figure 3 This is a schematic diagram of the structure of the fixing base of this utility model; Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model. Detailed Implementation

[0017] Based on the preferred embodiments of this utility model, and through the following description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0018] The first embodiment of this utility model will be further described with reference to the following figures: like Figure 1-4 As shown, a lens flipping mechanism for a hat shell includes a fixed base 1, a rotating bracket 3, a hatband bracket assembly 5, and a knob 6. The fixed base 1 is rotatably connected to the rotating bracket 3, and the rotating bracket 3 is fixedly connected to the inner lens 7. The fixed base 1 has a positioning buckle 1-1, which passes through a positioning hole 3-1 in the rotating bracket 3 and is axially engaged with the end face of the positioning hole 3-1. The rotating bracket 3 also has a positioning pin 3-2, and the fixed base 1 has an arc groove 1-2 that matches the positioning pin 3-2. The rotating bracket 3 also has a toggle button 3-3. This invention uses the positioning buckle 1-1 to create an interference fit between the fixed base 1 and the rotating bracket 3. The rotation of the fixed base 1 generates a certain resistance, and since the inner lens is relatively light, it will not fall off automatically due to its own weight. The arc groove 1-2 on the fixed base 1 cooperates with the positioning pin 3-2 to limit the rotation of the rotating bracket 1, ensuring smooth rotation without unlimited rotation. Generally, the length of the arc groove can be adjusted appropriately according to the size of the inner lens to make the inner lens fit the user. Of course, the same technical effect can also be achieved by providing a positioning pin on the fixed base and opening an arc groove on the rotating bracket.

[0019] As shown in the figure, the rotating bracket 3 also has an annular groove 3-4, and an O-ring 2 is placed inside the annular groove 3-4. The O-ring 2 is fitted between the rotating bracket 3 and the fixed base 1. This increases the damping between the rotating bracket 3 and the fixed base 1, making the toggle button 3-1 rotate more smoothly.

[0020] The hood strap bracket assembly 5 is fixedly connected to the fixing base 1 via the claws 1-3 on the fixing base 1. Of course, this utility model can provide at least two claws 1-3 on the fixing base 1 to achieve a firm fixation. In specific implementation, this utility model uses two claws 1-3 to hold the outer section of the hood strap bracket assembly 5, and another claw in the form of a buckle that engages with the protrusion on the outer side of the hood strap bracket assembly, which has the purpose of preventing both axial displacement and tangential disengagement.

[0021] On the outer side of the claws 1-3 of the fixing seat 1, a fixing seat anti-slip block 4 is also fixedly mounted. This prevents the fixing seat 1 from being loosely fixed and ensures a stable installation.

[0022] The rotating bracket 3 has a mounting groove with a resilient locking tongue 3-5 for engaging. The inner lens 7 has a locking hole 7-1. After the locking hole 7-1 on the inner lens 7 is inserted into the mounting groove, it engages securely with the resilient locking tongue 3-5. This facilitates the engagement of the inner lens 7 with the rotating bracket 3. When disassembling, simply press the resilient locking tongue 3-5 to pull out the inner lens 7, making installation and removal very convenient.

[0023] The following is a further description of Example 2: A hat shell employs the aforementioned inner lens flipping mechanism. The hat shell further includes a housing 11, a headband 12, and an outer lens 13. Two sets of the inner lens flipping mechanisms are fixed to both sides of the housing 11, and the left and right ends of the inner lens 7 are respectively engaged with the rotating bracket 3 of each set of inner lens flipping mechanisms. This structural design allows for easy and convenient rotation of the inner lens 7 even after the hat shell is worn, thus meeting various usage scenarios.

[0024] As shown in the figure, the shell 11 is clamped and fixed by the knobs 6 on both sides and the hood strap bracket 5. The hood strap bracket 5 is the carrier, and the hood shell to be clamped is between the knobs 6 and the hood strap bracket 5.

[0025] The hood strap 12 is fixed to the inside of the housing 11 by the hood strap bracket assembly 5. The hood strap 12 can be an adjustable hood strap, and the hood strap 12 and the hood strap bracket assembly 5 are detachably connected.

[0026] In summary, this utility model has a simple structure, an aesthetically pleasing overall appearance, and a stable structure.

Claims

1. A lens flipping mechanism for a hat shell, comprising a fixed base (1), a rotating bracket (3), a hatband bracket assembly (5), and a knob (6), wherein the fixed base (1) is rotatably connected to the rotating bracket (3), and the rotating bracket (3) is fixedly connected to the inner lens (7), characterized in that: The fixed base (1) has a positioning buckle (1-1), which passes through the positioning hole (3-1) of the rotating bracket (3) and is engaged with the end face of the positioning hole (3-1) in the axial direction; the rotating bracket (3) is also provided with a positioning pin (3-2), the fixed base (1) has an arc groove (1-2) that matches the positioning pin (3-2), and the rotating bracket (3) is also provided with a toggle button (3-3).

2. The lens flipping mechanism inside a cap shell according to claim 1, characterized in that: The rotating bracket (3) also has an annular groove (3-4) with an O-ring (2) inside the annular groove (3-4). The O-ring (2) is fitted between the rotating bracket (3) and the fixed seat (1).

3. The lens flipping mechanism inside a cap shell according to claim 1, characterized in that: The cap strap bracket assembly (5) is fixedly connected to the fixing seat (1) via the claws (1-3) on the fixing seat (1).

4. The lens flipping mechanism inside a cap shell according to claim 3, characterized in that: On the outside of the claws (1-3) of the fixed seat (1), a fixed seat stop block (4) is also fixedly mounted.

5. The lens flipping mechanism inside a cap shell according to claim 1, characterized in that: The rotating bracket (3) is provided with an installation groove, and the installation groove has an elastic locking tongue (3-5) for locking. The inner lens (7) has a locking hole (7-1). After the locking hole (7-1) on the inner lens (7) is inserted into the installation groove, it is locked and connected with the elastic locking tongue (3-5).

6. A cap shell, characterized in that: The cap shell adopts the cap shell inner lens flipping mechanism as described in any one of claims 1-5. The cap shell also includes a shell (11), a cap strap (12), and an outer lens (13). Two sets of the cap shell inner lens flipping mechanisms are fixed on both sides of the shell (11). The left and right ends of the inner lens (7) are respectively engaged with the rotating bracket (3) of each set of cap shell inner lens flipping mechanisms.

7. A cap shell according to claim 6, characterized in that: The housing (11) is clamped and fixed by the knobs (6) on both sides and the cap strap bracket assembly (5).

8. A cap shell according to claim 6, characterized in that: The hood strap (12) is fixed to the inside of the housing (11) by the hood strap bracket assembly (5).

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