Head lamp elastic band

Abstract

The utility model relates to the field of head lamp wearing, in particular to a head lamp elastic band which comprises two sets of side elastic bands, fixing buckles are installed on one sides of the two sets of side elastic bands, and a connecting base is arranged between the two sets of fixing buckles. Through rotation of the bidirectional screw and the worm, the worm drives the worm gear to rotate, so that the two groups of winding shafts and the bidirectional screw rotate simultaneously, winding of two groups of side elastic bands and one group of top elastic bands is completed, and consistency of winding lengths is guaranteed; the two-way screw drives the limiting blocks to move mutually through the internal thread blocks in the rotating process, the lamp body in the lamp fixing base is limited, meanwhile, the limiting rods can guarantee that the limiting blocks limit the lamp body when the limiting blocks are not completely combined, and through the structure, the lamp body can be conveniently and rapidly fixed. In the using process of the head lamp, the consistency of the adjusting lengths of the side elastic bands and the top elastic band can be guaranteed, the lamp body is limited in the adjusting process, and normal use and use practicability of the head lamp are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of headlamp wearing, specifically to a headlamp elastic band. Background Technology

[0002] The headlamp elastic band is an important component of a headlamp, ensuring it fits securely on the user's head while providing necessary comfort and adjustability. Headlamp elastic bands are typically made of elastic materials such as nylon, polyester, and spandex, which offer good elasticity and abrasion resistance. Depending on the design and intended use, headlamp elastic bands can be categorized into several types, such as jacquard elastic bands, heat transfer elastic bands, and woven elastic bands. These different types of elastic bands may vary in appearance, comfort, and durability, but all effectively secure the headlamp.

[0003] A search revealed a utility model patent with publication number CN218295389U, which discloses a headlamp with video recording and transmission functions. The headlamp includes a headband and a front housing. A top ring is fixedly installed on the inner side of the headband, and a rear housing is fixedly installed at the rear end of the headband. Elastic bands are fixedly installed on both sides of the rear housing, and another elastic band is fixedly installed at the top end of the rear housing. This headlamp with video recording and transmission functions features a headband and a top ring to secure the headlamp to the user's head. Elastic bands one and two are located on the outer sides of both to adjust the tightness of the headlamp. A connecting seat is located on the front side of the headband, allowing simultaneous installation of two lights and one camera. The lights are connected by threads, and the camera is connected magnetically, making installation and removal very convenient. A wireless data transmission module is located in the rear housing on the back side of the headband, enabling data transmission from the camera to a remote terminal, thus realizing video recording and transmission functions and facilitating communication with other personnel.

[0004] The existing headlamp elastic band allows users to adjust it according to their head circumference. However, since headlamps typically have two side straps and a top strap for stability, the existing elastic bands can only be adjusted individually. This results in inconsistent lengths after adjustment, causing the lamp's beam direction to shift. Furthermore, tilting the headlamp also affects the wearing experience. Additionally, the connection between the lamp body and the elastic band is usually a snap-fit ​​method, which can easily cause the lamp body to detach when the wearer bends over, thus affecting its normal use.

[0005] Therefore, it is necessary to invent a headlamp elastic band to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a headlamp elastic band that uses a bidirectional screw and two sets of winding shafts to rotate simultaneously with a worm gear and a worm wheel, thereby achieving the winding of the side elastic band and the top elastic band, thus enabling continuous length adjustment. Furthermore, the internal thread block drives the opposing movement of the limiting block, which can achieve a limiting effect on the lamp body within the lamp holder, thereby solving the problems in the prior art where the adjustable lengths of the various elastic bands are easily inconsistent and the lamp body is easily detached from the lamp holder.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a headlamp elastic band, comprising two sets of side elastic bands, each set of side elastic bands having a fixing buckle installed on one side, a connecting seat being provided between the two sets of fixing buckles, and the connecting seat engaging with the two sets of fixing buckles, a top elastic band being connected above the connecting seat using the same connection method as the side elastic bands, a fixing plate being provided on the top elastic band and the two sets of side elastic bands away from the connecting seat, and a lamp fixing seat being installed on one side of the fixing plate;

[0008] The adjustment assembly mounted on the fixed plate includes two sets of through slots, which are symmetrically opened on both sides of the fixed plate. A winding shaft is rotatably connected to each of the two sets of through slots, and the winding shaft is wound and fixed with the corresponding side elastic band. A worm gear is symmetrically rotated above the fixed plate, and the worm gear is shaft-connected to the corresponding winding shaft. A support base is installed above the fixed plate, and a bidirectional screw is connected through the support base. The bidirectional screw is distributed within the support base and wound and fixed with the top elastic band. A worm is symmetrically mounted on the bidirectional screw, and the worm meshes with the corresponding worm gear. A knob is shaft-connected to one side of one set of worms.

[0009] The limiting assembly set on the fixed plate includes two sets of internal threaded blocks. The two sets of internal threaded blocks are symmetrically screwed onto the bidirectional screw. A limiting block is installed on one side of each set of internal threaded blocks. The two sets of limiting blocks are located on both sides above the lamp fixing base, and both sets of limiting blocks are slidably connected to the surface of the fixed plate.

[0010] Preferably, the limiting component further includes limiting holes, which are symmetrically opened on one side of the limiting block, and both sets of limiting blocks have them on one side, and the limiting holes on the two sets of limiting blocks are arranged opposite to each other.

[0011] Preferably, each set of limiting holes has a limiting sliding connection with a limiting rod.

[0012] Preferably, each set of limiting rods is fitted with a spring that is attached to the inner wall of the limiting hole.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] The rotation of the double-headed screw and worm gear causes the worm gear to rotate, which in turn causes the two sets of winding shafts to rotate simultaneously with the double-headed screw. This completes the winding of the two sets of side elastic bands and one set of top elastic bands, ensuring consistent winding length. During rotation, the double-headed screw drives the limiting blocks to move relative to each other through the internal thread block, limiting the lamp body within the lamp holder. At the same time, the limiting rod ensures that the lamp body is limited even when the limiting blocks are not fully closed. Through this structure, the consistency of the adjustable length of the side elastic bands and top elastic bands can be ensured during the use of the headlamp, and the lamp body can be limited during adjustment, ensuring the normal use and practicality of the headlamp. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fixing plate structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the limiting block of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the worm gear and the worm of this utility model.

[0020] Figure 5 This is a schematic diagram of the connection structure between the fixing plate and the limiting block of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 001. Side elastic band; 101. Fixing buckle; 102. Connecting seat; 103. Top elastic band; 104. Fixing plate; 105. Lamp fixing seat; 002. Adjustment component; 201. Winding shaft; 202. Worm gear; 203. Support seat; 204. Double-acting screw; 205. Worm gear; 206. Knob; 207. Through groove; 003. Limiting component; 301. Internal thread block; 302. Limiting block; 303. Limiting hole; 304. Limiting rod; 305. Spring. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-5 The headlamp elastic band shown includes two sets of side elastic bands 001. Each set of side elastic bands 001 is equipped with a fixing buckle 101 on one side. A connecting seat 102 is provided between the two sets of fixing buckles 101, and the connecting seat 102 is engaged with the two sets of fixing buckles 101. A top elastic band 103 is connected above the connecting seat 102 in the same way as the side elastic bands 001. A fixing plate 104 is provided on the top elastic band 103 and the two sets of side elastic bands 001 away from the connecting seat 102. A lamp fixing seat 105 is installed on one side of the fixing plate 104.

[0025] The lamp is worn by engaging the fixing buckle 101 with the connecting seat 102, and the lamp fixing seat 105 can ensure the connection between the lamp body and the fixing plate 104.

[0026] The adjustment assembly 002, mounted on the fixed plate 104, includes two sets of through slots 207 symmetrically arranged on both sides of the fixed plate 104. A winding shaft 201 is rotatably connected within each of the two sets of through slots 207, and the winding shaft 201 is wound and fixed with the corresponding side elastic band 001. A worm gear 202 is symmetrically rotated above the fixed plate 104, and the worm gear 202 is shaft-connected to the corresponding winding shaft 201. A support base 203 is mounted above the fixed plate 104, and a bidirectional screw 204 is connected through the support base 203. The bidirectional screw 204 is distributed within the support base 203 and wound and fixed with the top elastic band 103. A worm gear 205 is symmetrically mounted on the bidirectional screw 204, and the worm gear 205 meshes with the corresponding worm gear 202. A knob 206 is shaft-connected to one side of each worm gear 205.

[0027] The knob 206 can drive the bidirectional screw 204 to rotate, which in turn drives the worm gear 202 to rotate, causing the take-up shaft 201 to rotate. This allows the bidirectional screw 204 and the two sets of take-up shafts 201 to simultaneously wind the two sets of side elastic bands 001 and the one set of top elastic bands 103, ensuring that the lengths of the two sets of side elastic bands 001 and the one set of top elastic bands 103 are always the same. Furthermore, the cooperation between the worm gear 202 and the worm 205 can effectively prevent the take-up shaft 201 from rotating on its own, which would affect the tightness. In addition, the two sets of worm gears 202 and the worm 205 rotate in opposite directions.

[0028] The limiting component 003 installed on the fixed plate 104 includes two sets of internal threaded blocks 301. The two sets of internal threaded blocks 301 are symmetrically screwed onto the bidirectional screw 204. A limiting block 302 is installed on one side of the two sets of internal threaded blocks 301. The two sets of limiting blocks 302 are located on both sides above the lamp fixing base 105, and both sets of limiting blocks 302 are slidably connected to the surface of the fixed plate 104.

[0029] By cooperating with the bidirectional screw 204 and the internal thread block 301, the two sets of limiting blocks 302 move in opposite directions above the lamp fixing seat 105, thereby limiting the locking effect of the lamp body.

[0030] Furthermore, in the above structure, the limiting component 003 also includes a limiting hole 303, which is symmetrically opened on one side of the limiting block 302, and both sets of limiting blocks 302 have holes on one side, and the limiting holes 303 on the two sets of limiting blocks 302 are arranged opposite to each other.

[0031] Furthermore, in the above structure, each set of limiting holes 303 has a limiting sliding connection with a limiting rod 304.

[0032] Furthermore, in the above structure, each set of limiting rods 304 is fitted with a spring 305 that is connected to the inner wall of the limiting hole 303.

[0033] The spring 305 can keep the position of the limiting rod 304. When the two sets of limiting blocks 302 move in opposite directions, the spring 305 can be compressed, thereby further ensuring that the bidirectional screw 204 will not rotate. The limiting rod 304 can also limit the lamp body when the limiting block 302 is not fully closed.

[0034] The working principle of this practical application is as follows:

[0035] Refer to the instruction manual appendix Figure 1-5 By rotating the knob 206, the knob 206 drives the bidirectional screw 204 and the worm gear 205 to rotate, which in turn drives the worm wheel 202 to rotate. The worm wheel 202 then drives the winding shaft 201 to wind up the side elastic band 001. At the same time, the bidirectional screw 204 can wind up the top elastic band 103, which in turn drives the internal thread block 301 to move in opposite directions. This causes the limiting blocks 302 to come closer together and limit the lamp fixing seat 105. The mutual pressing of the limiting rods 304 can compress the spring 305, limiting the bidirectional screw 204 and preventing it from rotating. It can also limit the lamp body. Through this structure, the consistency of the length adjustment of the side elastic band 001 and the top elastic band 103 can be ensured during the use of the headlamp, and the lamp body can be limited during the adjustment process, ensuring the normal use and practicality of the headlamp.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A headlamp elastic band, comprising two sets of side elastic bands (001), characterized in that: Each of the two sets of side elastic bands (001) is equipped with a fixing buckle (101) on one side. A connecting seat (102) is provided between the two sets of fixing buckles (101), and the connecting seat (102) is engaged with the two sets of fixing buckles (101). A top elastic band (103) is connected above the connecting seat (102) in the same way as the side elastic bands (001). A fixing plate (104) is provided on the top elastic band (103) and the two sets of side elastic bands (001) away from the connecting seat (102). A lamp fixing seat (105) is installed on one side of the fixing plate (104). The adjusting assembly (002) mounted on the fixed plate (104) includes two sets of through slots (207), which are symmetrically arranged on both sides of the fixed plate (104). A winding shaft (201) is rotatably connected within each of the two sets of through slots (207), and the winding shaft (201) is wound and fixed with the corresponding side elastic band (001). A worm gear (202) is symmetrically rotated above the fixed plate (104), and the worm gear (202) is shaft-connected to the corresponding winding shaft (201). A support base (203) is installed above the fixing plate (104). A bidirectional screw (204) is connected through the support base (203). The bidirectional screw (204) is distributed in the support base (203) and is fixed by the top elastic band (103). A worm (205) is symmetrically installed on the bidirectional screw (204). The worm (205) meshes with the corresponding worm wheel (202). A knob (206) is axially connected to one side of a set of worms (205). The limiting component (003) set on the fixed plate (104) includes two sets of internal threaded blocks (301). The two sets of internal threaded blocks (301) are symmetrically screwed onto the bidirectional screw (204). A limiting block (302) is installed on one side of the two sets of internal threaded blocks (301), and the two sets of limiting blocks (302) are located on both sides above the lamp fixing base (105). Both sets of limiting blocks (302) are slidably connected to the surface of the fixed plate (104).

2. The headlamp elastic band according to claim 1, characterized in that: The limiting component (003) also includes a limiting hole (303), which is symmetrically opened on one side of the limiting block (302), and is opened on one side of both sets of limiting blocks (302), and the limiting holes (303) on the two sets of limiting blocks (302) are arranged opposite to each other.

3. The headlamp elastic band according to claim 2, characterized in that: Each group of limiting holes (303) is connected to a limiting rod (304) for sliding connection.

4. The headlamp elastic band according to claim 3, characterized in that: Each set of limiting rods (304) is fitted with a spring (305) that is attached to the inner wall of the limiting hole (303).

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