Brightness-adjustable headlamp

Abstract

This invention relates to the field of surgical headlamp technology and discloses a brightness-adjustable headlamp. The brightness-adjustable headlamp includes a headlamp and a control box. A brightness adjustment knob is provided on one side of the control box. A rotating block is movably connected to the side of the headband away from the connecting block. A telescopic mechanism controls the rotational connection between the headband and the connecting block. A headlamp assembly is assembled inside the lamp holder, and the headlamp assembly includes a telescopic column. This brightness-adjustable headlamp, by rotating the headband, allows the lamp holder and headlamp assembly to be housed within a spindle-shaped area composed of the headband, rotating block, first carrier plate, and second carrier plate. This not only saves space effectively but also protects the headlamp, improving its portability and extending its lifespan.

Description

Technical Field

[0001] The present invention relates to the technical field of surgical headlights, and in particular to a brightness-adjustable headlight. Background Art

[0002] During the treatment of diseases, interventional treatment is often required through surgery. Medical staff usually wear headlights during the operation to increase the brightness of the surgical area and ensure the stability of the surgical operation.

[0003] The Chinese utility model patent with the patent number CN202222958149.3 discloses an LED medical headlamp, which belongs to the field of medical device technology, and includes an optical module, a control base, an adjustable connection mechanism and a headband, wherein the optical module is fixed on the control base, and the control base is connected to the adjustable connection mechanism. The headlamp of the above structure can adjust the color temperature and brightness of the headlamp in real time, but after the headlamp is used, the headband and the lighting part take up more space, making the storage of the headlamp inconvenient and also affecting the portability of the headlamp. Therefore, we have made improvements on this and proposed a brightness adjustable headlamp. Summary of the invention

[0004] In view of the problem that the existing headlights are inconvenient to store and carry after use, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a brightness adjustable headlamp, the purpose of which is: by rotating the headband plate, the lamp carrier cover and the headlamp assembly are stored in a shuttle-shaped area composed of the headband plate, the rotating block, the first carrier plate and the second carrier plate, which can not only save space well, but also protect the headlamp, improve the portability of the headlamp, and increase the service life of the headlamp.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a brightness adjustable headlamp, comprising a headlamp and a control box, wherein a brightness adjustment knob is arranged on one side of the control box, and further comprising two headband plates, wherein a connecting block is arranged between the two headband plates, a rotating block is movably connected to a side of the headband plate away from the connecting block, and a headband is connected between the side edges of the two rotating blocks;

[0007] The connecting block is equipped with a telescopic mechanism, which is used to control the rotational connection between the headband plate and the connecting block. The telescopic mechanism includes two telescopic shafts. The headband plate rotates to drive the two telescopic shafts to move axially, or drive the two telescopic shafts to rotate in opposite directions.

[0008] One of the telescopic shafts is connected to a first carrier plate, and the other telescopic shaft is connected to a second carrier plate. A control box is installed on one side of the first carrier plate and the second carrier plate close to the headband plate, respectively. A lamp carrier sleeve is installed in the first carrier plate and the second carrier plate, respectively. A headlamp assembly is installed in the lamp carrier sleeve. The headlamp assembly includes a telescopic column, one end of the telescopic column is movably connected to a connecting seat, an electric connection module is arranged inside the connecting seat, the electric connection module is electrically connected to the corresponding control box, the connecting seat is detachably connected to the headlamp, and the headlamp is electrically connected to the electric connection module;

[0009] The headband plate, the first carrier plate and the second carrier plate are rotated to form a shuttle-shaped area, and the telescopic mechanism, the lamp carrier cover, the headlamp assembly and the control box are stored in the shuttle-shaped area.

[0010] As a preferred solution of the brightness adjustable headlamp described in the present invention, the telescopic mechanism also includes a movable shaft, the two ends of the movable shaft are respectively connected to the two headband plates, the two ends of the movable shaft are respectively provided with connecting blocks, the two connecting blocks are respectively connected to the connecting blocks, a screw rod is movably passed through the middle of the connecting block, one end of the screw rod is concentrically connected to the first bevel gear, a second bevel gear is concentrically installed outside the movable shaft, and the second bevel gear is meshed with the first bevel gear.

[0011] As a preferred solution of the brightness adjustable headlamp described in the present invention, wherein: two groups of positioning cylinders are symmetrically installed on the side of the connecting block away from the movable axis, a sliding seat is movably arranged in the positioning cylinder, a movable seat is assembled outside the screw rod, a first axial sliding groove is provided on the side of the positioning cylinder close to the screw rod, and a through plate is respectively connected to the opposite sides of the movable seat, the through plate penetrates the first axial sliding groove and is connected to the corresponding sliding seat, one end of the telescopic shaft is movably connected to the sliding seat, a protrusion is installed on the side wall of one end of the telescopic shaft close to the sliding seat, a second axial sliding groove is provided on the side of the positioning cylinder away from the screw rod, and a special-shaped sliding groove is provided on the side of the positioning cylinder close to the connecting block, the second axial sliding groove is connected with the special-shaped sliding groove to form a track, and the protrusion is limited to move in the track.

[0012] As a preferred solution of the brightness adjustable headlamp described in the present invention, wherein: a first U-shaped groove and a second U-shaped groove are respectively opened on opposite sides of the first carrier plate, the second U-shaped groove is located below the first U-shaped groove, a first active area is enclosed between the first U-shaped groove of the first carrier plate and the first U-shaped groove of the second carrier plate, a second active area is enclosed between the second U-shaped groove of the first carrier plate and the second U-shaped groove of the second carrier plate, and the lamp carrier cover moves linearly within the first active area or the second active area.

[0013] As a preferred solution of the brightness adjustable headlamp described in the present invention, wherein: the opposite sides of the lamp carrier cover are respectively provided with card slots, the inner side of the first U-shaped slot and the inner side of the second U-shaped slot are respectively installed with plug blocks, the plug blocks are plugged into and matched with the corresponding card slots, the side wall of the lamp carrier cover is installed with a shift block, the side walls of the second carrier plate and the first carrier plate are respectively provided with shift grooves, the shift block and the shift groove cooperate with each other to drive the lamp carrier cover to move in a limited manner.

[0014] As a preferred solution of the brightness adjustable headlamp described in the present invention, the displacement groove includes a first through groove and a second through groove distributed on adjacent sides, a limiting groove is provided on the inner side of the first through groove, and a U-shaped groove is provided on the bottom inner wall and the top inner wall of the limiting groove respectively, the displacement block includes a first sliding frame, the first sliding frame is limited to move at the first through groove, the first sliding frame is connected to the second sliding frame, the second sliding frame is limited to move at the second through groove, the second sliding frame is connected to the side wall of the lamp carrier sleeve through the second through groove, a square column is provided between the upper and lower U-shaped grooves, a sliding shaft is movably penetrated between the first sliding frame and the second sliding frame, one end of the sliding shaft penetrates into the limiting groove, and a square block is connected to the through end of the sliding shaft, the square column and the square block are fixedly penetrated, a push block is movably inserted on the side of the first sliding frame away from the second sliding frame, the push block is connected to the end of the sliding shaft, and a spring is provided on the outer sleeve of the sliding shaft, and the spring is used to drive the push block to move outside the first sliding frame.

[0015] As a preferred solution of the brightness adjustable headlamp described in the present invention, wherein: the inner wall of the end of the lamp carrier away from the headlamp is provided with two quarter-arc grooves in parallel, an axial groove is provided between one ends of the two quarter-arc grooves, and a damping block is installed on the side wall of the end of the telescopic column away from the headlamp, and the damping block is limited to move within the quarter-arc groove or the axial groove.

[0016] As a preferred solution of the brightness adjustable headlamp described in the present invention, a socket is installed on the side wall of the first carrier plate or the second carrier plate, a power cord is led out from one side of the control box, the power cord is engaged with the socket, and the power cord is used for an external power supply.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention can realize automatic unfolding or storage of the headband, the first carrier plate and the second carrier plate by rotating the headband plate, and can also adjust the distance between the headlamp and the headband plate. When the headlamp is stored, the lamp carrier cover and the headlamp assembly are stored in a shuttle-shaped area composed of the headband plate, the rotating block, the first carrier plate and the second carrier plate, which can not only save space well, but also protect the headlamp, improve the portability of the headlamp, and increase the service life of the headlamp.

[0019] 2. The present invention, by utilizing the cooperation of the shift block and the shift groove, can realize the stable shift of the lamp carrier cover to the working state, or the shift of the lamp carrier cover to the storage state with the second carrier plate or the first carrier plate. At the same time, the headlamp can be disassembled from the connecting seat, which is convenient for replacing different types of headlamps. After the headlamp is installed with the connecting seat, the brightness of the headlamp can be directly adjusted by the brightness adjustment knob, and the operation is simple and convenient.

[0020] 3. The present invention, by arranging the telescopic column and the lamp carrying cover to be capable of limited telescopic design, allows the headlamp to be completely stored in the lamp carrying cover. In the stored state, the headlamp is not only protected by the lamp carrying cover, but also the lens of the headlamp is protected by the headband, which can achieve better storage management of the headlamp and increase the service life of the headlamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 The figure is a schematic diagram of the overall structure of the brightness adjustable headlamp of the present invention.

[0023] Figure 2 The figure is a schematic structural diagram of the brightness adjustable headlamp of the present invention in the storage state.

[0024] Figure 3 The figure is a schematic diagram of the assembly structure of the headband and telescopic mechanism of the brightness adjustable headlamp of the present invention.

[0025] Figure 4 The figure is a schematic structural diagram of the telescopic mechanism of the brightness adjustable headlamp of the present invention.

[0026] Figure 5 The figure is a schematic diagram of the structure of the separated positioning tube and telescopic shaft of the brightness adjustable headlamp of the present invention.

[0027] Figure 6 It is a schematic structural diagram of the first carrier plate and the second carrier plate of the brightness adjustable headlamp of the present invention.

[0028] Figure 7 The figure is a schematic cross-sectional structure diagram of the first carrier plate of the brightness adjustable headlamp of the present invention at the displacement groove.

[0029] Figure 8 The figure is a schematic cross-sectional structural diagram of a displacement block of a brightness adjustable headlamp according to the present invention.

[0030] Fig. 9The figure is a schematic diagram of the disassembled structure of the headlamp assembly and the lamp carrier of the brightness adjustable headlamp of the present invention.

[0031] Fig.10 The figure is a schematic cross-sectional view of the lamp housing of the brightness adjustable headlamp of the present invention.

[0032] Description of reference numerals:

[0033] 1. Headband; 11. Rotating block; 12. Headband; 13. Connecting block;

[0034] 2. Telescopic mechanism; 21. Screw rod; 22. Moving seat; 221. Through plate; 222. Sliding seat; 23. First bevel gear; 24. Movable shaft; 25. Second bevel gear; 26. Connecting block; 27. Positioning cylinder; 271. First axial slide groove; 272. Second axial slide groove; 273. Special-shaped slide groove; 28. Telescopic shaft; 29. ​​Bump;

[0035] 3. First carrier plate; 4. Second carrier plate; 5. Lamp carrier; 51. Shift block; 511. First slide frame; 512. Second slide frame; 513. Sliding shaft; 514. Push block; 515. Square block; 516. Square column; 52. Slot; 53. Quarter arc slot; 54. Axial slot;

[0036] 6. Headlamp assembly; 61. Headlamp; 62. Connecting seat; 63. Power connection module; 64. Telescopic column; 65. Damping block; 7. Control box; 71. Brightness adjustment knob; 72. Power cord; 8. Shifting slot; 81. First through slot; 82. Second through slot; 83. Limiting slot; 84. U-shaped groove; 9. First U-shaped slot; 10. Second U-shaped slot; 14. Card seat; 15. Insert block. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0038] Example 1

[0039] Reference Figure 1-10, which is the first embodiment of the present invention, provides a brightness adjustable headlamp, the brightness adjustable headlamp comprises a headlamp 61 and a control box 7, a brightness adjustment knob 71 is arranged on one side of the control box 7, and also comprises two headbands 1, a connecting block 13 is arranged between the two headbands 1, a rotating block 11 is movably connected to the side of the headband 1 away from the connecting block 13, the movable connecting component is a torsion spring shaft, a headband 12 is connected between the sides of the two rotating blocks 11, and the headband 12 is made of elastic material; a telescopic mechanism 2 is installed at the connecting block 13, and the telescopic mechanism 2 is used The headband plate 1 is controlled to be rotatably connected with the connecting block 13. The telescopic mechanism 2 includes two telescopic shafts 28. The headband plate 1 rotates to drive the two telescopic shafts 28 to move axially, or to drive the two telescopic shafts 28 to rotate in the opposite direction. When the headband plate 1 is in use, the arcs of the two headband plates 1 are facing away from the telescopic mechanism 2. When the headband plate 1 is in the storage state, the arcs of the two headband plates 1 are facing the telescopic mechanism 2. One of the telescopic shafts 28 is connected to the first carrier plate 3, and the other telescopic shaft 28 is connected to the second carrier plate 4. The first carrier plate 3 and the second carrier plate 4 are in use. Figure 1 Closed state, Figure 2 The first carrier plate 3 and the second carrier plate 4 are in the storage state after being rotated 90° in the opposite direction. A control box 7 is respectively installed on one side of the first carrier plate 3 and the second carrier plate 4 close to the headband plate 1. A lamp carrier cover 5 is respectively installed in the first carrier plate 3 and the second carrier plate 4. A headlamp assembly 6 is installed in the lamp carrier cover 5. The headlamp assembly 6 includes a telescopic column 64. A connecting seat 62 is movably connected to one end of the telescopic column 64. An electric connection module 63 is arranged on the inner side of the connecting seat 62. The electric connection module 63 is electrically connected to the corresponding control box 7. The connecting seat 62 is detachably connected to the headlamp 61. The headlamp 61 is electrically connected to the electric connection module 63. The headband plate 1, the first carrier plate 3 and the second carrier plate 4 are rotated to form a shuttle-shaped area. The telescopic mechanism 2, the lamp carrier cover 5, the headlamp assembly 6 and the control box 7 are stored in the shuttle-shaped area. The brightness adjustment knob 71 is used to drive the brightness of the headlamp 61. When in use, the headlamp is as follows Figure 1 In the state shown, when in the storage state, the headband plate 1 rotates, so that the first carrier plate 3 and the second carrier plate 4 rotate automatically, and the headlight is as shown in FIG. Figure 2 The state shown makes it easy to carry and store the headlamp.

[0040] Combined with Figure 3 and Figure 4The telescopic mechanism 2 also includes a movable shaft 24, both ends of which are connected to the two head hoop plates 1 respectively, and connecting blocks 26 are respectively sleeved on both ends of the movable shaft 24. The two connecting blocks 26 are respectively connected to the connecting blocks 13. A screw rod 21 movably penetrates the middle of the connecting block 13, and one end of the screw rod 21 is concentrically connected to the first bevel gear 23. A second bevel gear 25 is concentrically installed outside the movable shaft 24, and the second bevel gear 25 is meshed with the first bevel gear 23. When the two head hoop plates 1 rotate, the movable shaft 24 rotates, the second bevel gear 25 rotates, and the second bevel gear 25 meshes with the first bevel gear 23. The screw rod 21 is movably connected to the connecting block 13, so that the first bevel gear 23 and the screw rod 21 rotate.

[0041] Combined with Figure 1-5 , two groups of positioning cylinders 27 are symmetrically installed on the side of the connecting block 13 away from the movable shaft 24, a slide seat 222 is movably arranged in the positioning cylinder 27, and the slide seat 222 moves axially in the positioning cylinder 27, and a moving seat 22 is assembled outside the screw rod 21, and a first axial slide groove 271 is provided on the side of the positioning cylinder 27 close to the screw rod 21, and a through plate 221 is connected to the opposite side of the moving seat 22, respectively, and the through plate 221 penetrates the first axial slide groove 271 and is connected to the corresponding slide seat 222, one end of the telescopic shaft 28 is movably connected to the slide seat 222, and the movable connecting member is a bearing sleeve, and a protrusion 29 is installed on the side wall of the end of the telescopic shaft 28 close to the slide seat 222, a second axial slide groove 272 is provided on the side of the positioning cylinder 27 away from the screw rod 21, and a special-shaped slide groove 273 is provided on the side of the positioning cylinder 27 close to the connecting block 13, and the second axial slide groove 272 is connected to the special-shaped slide groove 273. The shaped slide groove 273 is connected to form a track, and the protrusion 29 is limited to move in the track. When the head hoop plate 1 rotates, the screw rod 21 rotates, and the positioning cylinder 27 is fixedly connected to the connecting block 13. Under the limitation of the positioning cylinder 27, the moving seat 22 moves linearly outside the screw rod 21. When the head hoop plate 1 rotates clockwise, the moving seat 22 moves in the direction away from the first bevel gear 23. When the head hoop plate 1 rotates counterclockwise, the moving seat 22 moves in the direction close to the first bevel gear 23. In the process of movement of the moving seat 22, the through plate 221 moves axially in the first axial slide groove 271, and the slide seat 222 pushes the telescopic shaft 28 to move axially. The protrusion 29 moves in the second axial slide groove 272 or the special-shaped slide groove 273. When the protrusion 29 moves in the special-shaped slide groove 273, the telescopic shaft 28 rotates 90° in accordance with the arc of the special-shaped slide groove 273.

[0042] Working principle, when the initial Figure 2 In the state shown, the protrusion 29 is located in the special-shaped slot 273 and away from one end of the second axial slot 272. First, the head hoop plate 1 is rotated clockwise to 180 degrees, and the moving seat 22 moves away from the first bevel gear 23, so that the head hoop plate 1 becomes as shown in FIG. Figure 1 or Figure 3As shown in the state, the screw rod 21 rotates at the same time, so that the projection 29 becomes as shown in the Figure 4 In the state shown in FIG. 1 , one of the two telescopic shafts 28 rotates 90° clockwise and the other rotates 90° counterclockwise, so that the first carrier plate 3 and the second carrier plate 4 are respectively Figure 2 The states shown are rotated as follows: Figure 1 The state shown is used to realize the transformation of the headlamp as a whole from the storage state to the use state; when it is necessary to adjust the distance between the first carrier plate 3 and the second carrier plate 4 and the headband plate 1, the headband plate 1 can continue to be rotated clockwise one or more circles to rotate the screw rod 21, and the movable seat 22 moves on the screw rod 21 to push the telescopic shaft 28 to move axially. In this process, the protrusion 29 moves in the second axial slide groove 272 until the first carrier plate 3 or the second carrier plate 4 moves to a suitable position, thereby realizing the adjustment of the distance between the headlamp 61 and the headband plate 1.

[0043] Example 2

[0044] Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that:

[0045] The first carrier plate 3 and the second carrier plate 4 are respectively provided with a first U-shaped groove 9 and a second U-shaped groove 10 on opposite sides thereof. Figure 6 In the state shown, the second U-shaped groove 10 is located below the first U-shaped groove 9, the first U-shaped groove 9 of the first carrier plate 3 and the first U-shaped groove 9 of the second carrier plate 4 form a first active area, the second U-shaped groove 10 of the first carrier plate 3 and the second U-shaped groove 10 of the second carrier plate 4 form a second active area, the lamp holder 5 moves linearly within the first active area or the second active area, the width of the first active area is mostly located within the second carrier plate 4, so that the lamp holder 5 located in the first active area can be completely shifted to the second carrier plate 4, or can be shifted between the first carrier plate 3 and the second carrier plate 4; the width of the second active area is mostly located within the first carrier plate 3, so that the lamp holder 5 located in the second active area can be completely shifted to the first carrier plate 3, or can be shifted between the first carrier plate 3 and the second carrier plate 4, and when the upper and lower lamp holders 5 are both located between the first carrier plate 3 and the second carrier plate 4, it is in a working state.

[0046] Combined with Figure 1 , Figure 2 , Figure 6 and Figure 7, the opposite sides of the lamp carrier sleeve 5 are respectively provided with card grooves 52, and the inner sides of the first U-shaped groove 9 and the inner sides of the second U-shaped groove 10 are respectively installed with plug blocks 15, and the plug blocks 15 are plugged with the corresponding card grooves 52. When the lamp carrier sleeve 5 is shifted to the left or right side of the first U-shaped groove 9 or the second U-shaped groove 10, the card grooves 52 on the side walls of the lamp carrier sleeve 5 are plugged with the corresponding plug blocks 15, which can improve the overall stability of the lamp carrier sleeve 5; the side walls of the lamp carrier sleeve 5 are installed with shift blocks 51, and the side walls of the second carrier plate 4 and the first carrier plate 3 are respectively provided with shift grooves 8, and the shift blocks 51 cooperate with the shift grooves 8 to drive the lamp carrier sleeve 5 to move in a limited manner.

[0047] Combined with Figure 7 and Figure 8 The shifting groove 8 includes a first through groove 81 and a second through groove 82 distributed on adjacent sides. A limiting groove 83 is provided on the inner side of the first through groove 81. A U-shaped groove 84 is provided on the bottom inner wall and the top inner wall of the limiting groove 83 respectively. The shifting block 51 includes a first sliding frame 511. The first sliding frame 511 is limited to move at the first through groove 81. The first sliding frame 511 is connected to the second sliding frame 512. The opposite surfaces of the first sliding frame 511 and the second sliding frame 512 are open end surfaces. The first sliding frame 511 and the second sliding frame 512 are square structures respectively. The second sliding frame 512 is limited to move at the second through groove 82. The second sliding frame 512 is connected to the side wall of the lamp holder 5 through the second through groove 82. A square column 516 is provided between the upper and lower U-shaped grooves 84. Both sides of the U-shaped groove 84 The square column 516 is respectively close to the two ends of the limit groove 83. The square column 516 needs to be pushed inward from one side of the U-shaped groove 84 to move from the horizontal part of the U-shaped groove 84 to the other side of the U-shaped groove 84. A sliding shaft 513 is movably penetrated between the first sliding frame 511 and the second sliding frame 512. One end of the sliding shaft 513 penetrates into the limit groove 83, and the penetrating end of the sliding shaft 513 is connected with a square block 515. The square column 516 is fixedly penetrated by the square block 515. A push block 514 is movably inserted on the side of the first sliding frame 511 away from the second sliding frame 512. The push block 514 is connected to the end of the sliding shaft 513. A spring is provided on the outer sleeve of the sliding shaft 513. The spring is used to drive the push block 514 to move outward from the first sliding frame 511. During the movement of the square column 516, the square block 515 moves in the limit groove 83.

[0048] Combined with Figure 1 , Figure 2 , Fig. 9 and Fig.10Two quarter-circular arc grooves 53 are parallelly formed on the inner wall of one end of the lamp carrier 5 away from the headlamp 61, and an axial groove 54 is formed between one end of the two quarter-circular arc grooves 53. A damping block 65 is installed on the side wall of the end of the telescopic column 64 away from the headlamp 61. The damping block 65 is limited to move in the quarter-circular arc groove 53 or the axial groove 54. When the headlamp is in use, the headlamp 61, the connecting seat 62 and a part of the telescopic column 64 are exposed outside the lamp carrier 5. The connecting seat 62 and the telescopic column 64 are rotatably connected by a multi-torque shaft to adjust the direction of the headlamp 61. After use, the headlamp 61 is rotated to be parallel to the axis of the telescopic column 64, and then the damping block 65 is moved from the headlamp 61 to the telescopic column 64. Fig.10 The headlight 61 is pushed into the lamp holder 5 by an arc-shaped rotation to the axial groove 54 and then moved axially, and then the headlight 61 is pushed into the lamp holder 5 by an arc-shaped rotation. Then the damping block 65 is rotated to another quarter arc groove 53, so that the telescopic column 64 and the lamp holder 5 can be telescopically matched, thereby protecting the headlight 61 from accidental falling and damage when the headlight is stored.

[0049] Combined with Figure 6 and Figure 7 A card holder 14 is installed on the side wall of the first carrier plate 3 or the second carrier plate 4, and a power cord 72 is led out from one side of the control box 7. The power cord 72 is engaged with the card holder 14 and is used for an external power supply. By setting an external power supply, the overall weight of the headlamp can be reduced and the wearing stability of the headlamp can be improved.

[0050] Working principle: when the first carrier plate 3 and the second carrier plate 4 are rotated from a horizontal state to Figure 1 After the vertical state shown, by pressing the push block 514, the square column 516 enters the horizontal part of the U-shaped groove 84, and then the shift block 51 is pulled horizontally to make the lamp carrier 5 move horizontally in the corresponding first U-shaped groove 9 or the second U-shaped groove 10 until it moves to the middle position between the first carrier plate 3 and the second carrier plate 4, and then the push block 514 is released. Driven by the spring, the square column 516 moves from the horizontal part of the U-shaped groove 84 to the vertical part of the U-shaped groove 84 and is limited. After the position of the lamp carrier 5 is determined, by rotating the headlight 61, the damping block 65 is in the quarter arc groove 5 3 and axial groove 54, so that the telescopic column 64 moves axially in the lamp-carrying sleeve 5, so that the headlamp 61 is exposed to the outside of the lamp-carrying sleeve 5, and the irradiation direction of the headlamp 61 can be adjusted by rotating the connecting seat 62. By rotating the headlamp 61 alone, the headlamp 61 and the connecting seat 62 can be disassembled, which is convenient for replacing different types of headlamps 61. Then, the headlamp is worn on the head, and the power cord 72 is connected to an external mobile power source. By rotating the brightness adjustment knob 71, the brightness of the headlamp 61 can be adjusted. After use, the headlamp 61 is retracted into the lamp-carrying sleeve 5 again to transform into a headlamp 61. Figure 2In the state shown, at this time, the headlight 61 is not only protected by the lamp carrier 5, but also the lens of the headlight 61 is protected by the headband 12, which can achieve better storage management of the headlight and improve the service life of the headlight.

[0051] The remaining structures are the same as those of Example 1.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A brightness adjustable headlamp, comprising a headlamp (61) and a control box (7), wherein a brightness adjustment knob (71) is provided on one side of the control box (7), characterized in that: It also comprises two headband plates (1), a connection block (13) is arranged between the two headband plates (1), a rotating block (11) is movably connected to a side of the headband plate (1) away from the connection block (13), and a headband (12) is connected between the side edges of the two rotating blocks (11); The connecting block (13) is equipped with a telescopic mechanism (2), the telescopic mechanism (2) is used to control the headband plate (1) to be rotatably connected to the connecting block (13), the telescopic mechanism (2) comprising two telescopic shafts (28), the headband plate (1) rotates to drive the two telescopic shafts (28) to move axially, or to drive the two telescopic shafts (28) to rotate in opposite directions; One of the telescopic shafts (28) is connected to a first carrier plate (3), and the other telescopic shaft (28) is connected to a second carrier plate (4); a control box (7) is respectively installed on one side of the first carrier plate (3) and the second carrier plate (4) close to the headband plate (1); a lamp carrier sleeve (5) is respectively installed in the first carrier plate (3) and the second carrier plate (4); a headlamp assembly (6) is installed in the lamp carrier sleeve (5); the headlamp assembly (6) comprises a telescopic column (64); one end of the telescopic column (64) is movably connected to a connecting seat (62); an electric connection module (63) is arranged inside the connecting seat (62); the electric connection module (63) is electrically connected to the corresponding control box (7); the connecting seat (62) is detachably connected to the headlamp (61); and the headlamp (61) is electrically connected to the electric connection module (63); The headband plate (1), the first carrier plate (3) and the second carrier plate (4) are rotated to form a shuttle-shaped area, and the telescopic mechanism (2), the lamp carrier cover (5), the headlamp assembly (6) and the control box (7) are stored in the shuttle-shaped area.

2. The brightness adjustable headlamp according to claim 1, characterized in that: The telescopic mechanism (2) further comprises a movable shaft (24), the two ends of the movable shaft (24) being respectively connected to the two head hoop plates (1), the two ends of the movable shaft (24) being respectively sleeved with connecting blocks (26), the two connecting blocks (26) being respectively connected to the connecting blocks (13), a screw rod (21) being movably passed through the middle of the connecting block (13), one end of the screw rod (21) being concentrically connected to the first bevel gear (23), a second bevel gear (25) being concentrically mounted outside the movable shaft (24), the second bevel gear (25) being meshed with the first bevel gear (23).

3. The brightness adjustable headlamp according to claim 2, characterized in that: Two groups of positioning cylinders (27) are symmetrically installed on one side of the connection block (13) away from the movable shaft (24), a slide seat (222) is movably arranged inside the positioning cylinder (27), a movable seat (22) is assembled outside the screw rod (21), a first axial slide groove (271) is opened on the side of the positioning cylinder (27) close to the screw rod (21), and a through plate (221) is connected to the opposite side of the movable seat (22), the through plate (221) penetrates the first axial slide groove (271) and is connected to the corresponding slide seat (222). ), one end of the telescopic shaft (28) is movably connected to the slide seat (222), a protrusion (29) is installed on the side wall of one end of the telescopic shaft (28) close to the slide seat (222), a second axial slide groove (272) is provided on the side of the positioning cylinder (27) away from the screw rod (21), and a special-shaped slide groove (273) is provided on the side of the positioning cylinder (27) close to the connecting block (13), the second axial slide groove (272) and the special-shaped slide groove (273) are connected to form a track, and the protrusion (29) is limited to move in the track.

4. The brightness adjustable headlamp according to claim 3, characterized in that: A first U-shaped groove (9) and a second U-shaped groove (10) are respectively provided on opposite sides of the first carrier plate (3) and the second carrier plate (4); the second U-shaped groove (10) is located below the first U-shaped groove (9); a first activity area is formed between the first U-shaped groove (9) of the first carrier plate (3) and the first U-shaped groove (9) of the second carrier plate (4); a second activity area is formed between the second U-shaped groove (10) of the first carrier plate (3) and the second U-shaped groove (10) of the second carrier plate (4); and the lamp carrier sleeve (5) moves linearly and positionally in the first activity area or the second activity area.

5. The brightness adjustable headlamp according to claim 4, characterized in that: The opposite sides of the lamp carrier (5) are respectively provided with card slots (52); the inner sides of the first U-shaped slot (9) and the second U-shaped slot (10) are respectively provided with plug blocks (15); the plug blocks (15) are plugged into and matched with the corresponding card slots (52); the side walls of the lamp carrier (5) are provided with shift blocks (51); the side walls of the second carrier plate (4) and the first carrier plate (3) are respectively provided with shift slots (8); the shift blocks (51) are movably matched with the shift slots (8) to drive the lamp carrier (5) to move in a limited manner.

6. The brightness adjustable headlamp according to claim 5, characterized in that: The displacement groove (8) comprises a first through groove (81) and a second through groove (82) distributed on adjacent sides, a limiting groove (83) is provided on the inner side of the first through groove (81), and a U-shaped groove (84) is provided on the bottom inner wall and the top inner wall of the limiting groove (83), respectively. The displacement block (51) comprises a first sliding frame (511), the first sliding frame (511) is limited and movable at the first through groove (81), the first sliding frame (511) is connected to a second sliding frame (512), the second sliding frame (512) is limited and movable at the second through groove (82), the second sliding frame (512) is connected to the side wall of the lamp carrier (5) through the second through groove (82), and the upper and lower two sliding frames (511) are connected to the second through groove (82). A square column (516) is provided between the U-shaped grooves (84); a sliding shaft (513) is movably passed through between the first sliding frame (511) and the second sliding frame (512); one end of the sliding shaft (513) passes through the limiting groove (83), and the passing end of the sliding shaft (513) is connected with a square block (515); the square column (516) and the square block (515) are fixedly passed through; a push block (514) is movably inserted at a side of the first sliding frame (511) away from the second sliding frame (512); the push block (514) is connected to the end of the sliding shaft (513); a spring is provided on the outer sleeve of the sliding shaft (513); the spring is used to drive the push block (514) to move out of the first sliding frame (511).

7. The brightness adjustable headlamp according to claim 6, characterized in that: Two quarter-circular arc grooves (53) are formed in parallel on the inner wall of one end of the lamp-carrying sleeve (5) away from the headlight (61); an axial groove (54) is formed between one end of the two quarter-circular arc grooves (53); a damping block (65) is installed on the side wall of one end of the telescopic column (64) away from the headlight (61); the damping block (65) is limited and movable in the quarter-circular arc groove (53) or the axial groove (54).

8. The brightness adjustable headlamp according to claim 7, characterized in that: A card holder (14) is installed on the side wall of the first carrier board (3) or the second carrier board (4), a power cord (72) is led out from one side of the control box (7), the power cord (72) is engaged with the card holder (14), and the power cord (72) is used for external power supply.

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