Headband fixing structure

Abstract

The utility model relates to a headband fixing structure, which comprises a headband support, the headband support is clamped and fixed on a helmet shell through a fixing rod and a knob, the headband fixing structure is characterized in that the knob is further connected with a cover plate, the cover plate is clamped on the outer side of the knob, and the cover plate is provided with a bolt; and the bolt is inserted into the pin hole of the fixed rod. The utility model has the characteristics that the cover plate cannot rotate along with the cover plate and the product is attractive in use.

Description

Technical Field

[0001] The utility model relates to the field of protective equipment in industrial production, in particular to a headband fixing structure for a helmet used for protecting the face. Background Art

[0002] When performing welding operations, a mask with a core box is required. This mask can automatically adjust the darkness of the core box according to the welding light to protect the operator's eyes. The masks on the market have a headband and a mask that are fixed by a two-way fixing device.

[0003] Currently, the masks on the market are fixedly connected to the headband by a rotating button. This connection method is fixed by rotating the knob. Since the cover is completely fixed on the knob, the cover will rotate with the rotation of the knob, causing some text on the cover (usually product information, LOGO, etc.) to be tilted or inverted, which greatly affects the aesthetics and user experience of the product. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a headband fixing structure with a cover plate that does not rotate and an aesthetically pleasing product.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A headband fixing structure includes a headband bracket, which is fixed to a hat shell through a fixing rod and a knob clamp. The characteristic is that the knob is also connected to a cover plate, which is clamped on the outside of the knob and has a pin on the cover plate; the pin is inserted into the pin hole of the fixing rod.

[0007] Furthermore, a fan-shaped plate is provided between the headband bracket and the knob.

[0008] Furthermore, the cover plate has a truncated cone-shaped engaging boss, which is engaged in the positioning buckle of the knob.

[0009] Furthermore, the fixing rod is a threaded rod, the knob and the fixing rod are fixed by a threaded connection, and the pin hole of the fixing rod is a flat wire hole.

[0010] Furthermore, a washer is provided between the fixing rod and the headband bracket.

[0011] Furthermore, the sector plate has a positioning boss.

[0012] In the utility model, a cover plate is clamped on the knob, and a latch on the cover plate is inserted into the pin hole of the fixing rod. The knob and the cover plate can rotate relative to each other. When the knob is rotated and locked, the cover plate will not rotate with it. When the cover plate is installed and clamped, it is sufficient to be in the correct position, thus ensuring the aesthetics of the text on the cover plate.

[0013] The utility model has a simple structure and a good locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0015] Figure 1 This is an exploded view of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the assembly of the cover and knob of the utility model. DETAILED DESCRIPTION

[0018] The following is based on the ideal embodiment of the present invention. Through the following description, relevant personnel can make various changes and modifications without departing from the scope of the technical concept of this invention. The technical scope of this utility model is not limited to the content of the specification, but must be determined according to the scope of the claims.

[0019] The present invention will be further described with reference to the following drawings:

[0020] like Figures 1-3 As shown, a headband fixing structure includes a headband bracket 1, which is clamped and fixed to a helmet shell via a fixing rod 2 and a knob 3. The structure is characterized in that a cover plate 4 is connected to the knob 3, which engages the outside of the knob 3 and has a latch 4-1, which is inserted into a pin hole 2-1 of the fixing rod 2. The cover plate 4 and the knob 3 are engaged to restrict the vertical movement of the cover plate 4. The latch 4-1 is inserted into the pin hole 2-1, which allows a clearance fit (with a small clearance tolerance) to restrict the rotation of the cover plate 4, thereby fixing the position of the cover plate 4.

[0021] A fan-shaped plate 5 is further provided between the headband bracket 1 and the knob 3. The fan-shaped plate can be connected to the cap shell, which is more conducive to the fixation of the headband and the cap shell.

[0022] like Figure 1 、 2The cover plate 4 has a truncated cone-shaped engaging boss 4-2, which is engaged in the positioning buckle 3-1 of the knob 3. The boss 4-2 of the present invention is annular, and the front end of the boss 4-2 can be provided with a slope surface for easy engagement.

[0023] The fixing rod 2 is a threaded rod, and the knob 3 is fixed to the fixing rod 2 by a threaded connection. The pin hole 2-1 of the fixing rod 2 is a flat wire hole. In this way, the latch 4-1 on the cover plate 4 also has a flat wire and is inserted into the pin hole 2-1, which has a better anti-rotation effect. Of course, the present invention can use other holes to match the latch, as long as the rotation of the latch 4-1 is restricted.

[0024] A washer 6 is provided between the fixing rod 2 and the headband bracket 1 .

[0025] The sector plate 5 is provided with a positioning boss 5-1. When the headband is installed, the positioning boss 5-1 can be installed in the positioning hole on the cap shell to achieve the purpose of positioning, fixing and rotating.

[0026] The utility model inserts the latch on the cover into the pin hole of the fixing rod, and the knob and the cover can rotate relatively. When the knob is rotated and locked, the cover will not rotate along with it. When installed and engaged, the cover can be in the correct position, thus ensuring the aesthetics of the text on the cover.

Claims

1. A headband fixing structure, comprising a headband bracket (1), wherein the headband bracket (1) is clamped and fixed on a cap shell via a fixing rod (2) and a knob (3), and is characterized in that: The knob (3) is also connected to a cover plate (4), which is engaged with the outer side of the knob (3) and has a latch (4-1); the latch (4-1) is inserted into the pin hole (2-1) of the fixing rod (2).

2. The headband fixing structure according to claim 1, characterized in that: A fan-shaped plate (5) is further provided between the headband bracket (1) and the knob (3).

3. The headband fixing structure according to claim 1, characterized in that: The cover plate (4) is provided with a truncated cone-shaped engaging boss (4-2), and the engaging boss (4-2) is engaged in the positioning buckle (3-1) of the knob (3).

4. The headband fixing structure according to claim 1, characterized in that: The fixing rod (2) is a threaded rod, the knob (3) and the fixing rod (2) are fixed via a threaded connection, and the pin hole (2-1) of the fixing rod (2) is a flat wire hole.

5. The headband fixing structure according to claim 1, characterized in that: A washer (6) is provided between the fixing rod (2) and the headband bracket (1).

6. The headband fixing structure according to claim 2, characterized in that: The sector plate (5) is provided with a positioning boss (5-1).

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