Headlights that prevent switches from being accidentally triggered

Abstract

The present invention relates to a headlamp that prevents a switch from being triggered by mistake, comprising a headband in a ring shape; a mounting seat connected to the headband; a lamp holder, comprising a shell rotatably mounted on the front of the mounting seat and a light-emitting body arranged in the shell; a switch button movably arranged on the shell of the lamp holder; the shell can also move left and right relative to the mounting seat and a movable positioning structure is provided between the two, and a limiting part is provided on the mounting seat. When the shell moves to a first position and is positioned by the movable positioning structure, the switch button and the limiting part abut against each other and cannot move in a pressing direction relative to the shell, and the switch button cannot be pressed and triggered, so as to prevent the switch button from being triggered by mistake and ensure the working reliability of the headlamp when in use; when the shell moves to a second position and is positioned by the movable positioning structure, the switch button is away from the limiting part and can move in a pressing direction relative to the shell, and the switch button can be pressed and triggered.

Description

Technical Field

[0001] The invention relates to a headlamp, in particular to a headlamp capable of preventing a switch from being triggered by mistake. Background Art

[0002] Headlamps are an indispensable and important piece of equipment for outdoor activities, such as night hiking, night camping, night equipment maintenance, etc. The light output angle of traditional headlamps cannot be adjusted and can only be changed by turning the head. In addition, headlamps are usually connected to an external power source for carrying when powered on, which is inconvenient to use.

[0003] In response to the above problems, the Chinese utility model patent with patent number CN201820841092.X (publication number CN208504001U) discloses "A headlamp with built-in rechargeable battery and convenient lamp head rotation", which includes a headband, a shell, a lamp head, a switch button, a driving circuit board, a wire, a hose and a rechargeable battery. The driving circuit board and the rechargeable battery are both installed in the shell, and the rechargeable battery is electrically connected to the driving circuit board. The two ends of the headband are hung on the headband hooks of the shell, the switch button at the upper end of the shell is electrically connected to the driving circuit board, and the charging socket at the rear end of the shell is electrically connected to the rechargeable battery. The front end of the shell and the rear end of the lamp head are pivotally connected through an axle rod, and the front end of the shell and the rear end of the lamp head are connected through a hose. The wire is inserted in the hose, and the driving circuit board is electrically connected to the lamp head through the wire. The headlamp allows the lamp head to be rotatably installed on the shell to change the lighting angle; and the rechargeable battery is installed in the shell, which solves the problem of inconvenience in carrying an external power supply.

[0004] However, the switch button of this type of headlight is close to the lamp head. When rotating the lamp head, it is easy to accidentally touch the switch button and cause erroneous operation.

[0005] Another example is the "Focusing Headlamp" disclosed in the Chinese utility model patent with patent number CN201920687752.8 (publication number CN209909609U), which also has the above-mentioned problem of accidentally triggering the second switch when the lamp head is rotated. Therefore, the current rotatable headlights need to be further improved to prevent the switch from being accidentally triggered when the lamp head is rotated. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a headlamp capable of limiting the position of a switch button to prevent the switch from being accidentally triggered, in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problem is: a headlight to prevent a switch from being triggered by mistake, comprising

[0008] Headband, in the shape of a ring;

[0009] A mounting base connected to the headband;

[0010] The lamp holder comprises a shell rotatably mounted on the front of the mounting seat and a light emitting body arranged in the shell;

[0011] A switch button is movably arranged on the housing of the lamp holder;

[0012] It is characterized in that the shell can also move left and right relative to the mounting seat and a movable positioning structure is provided between the two, and a limiting portion is provided on the mounting seat. When the shell moves to the first position and is positioned by the movable positioning structure, the switch button and the limiting portion abut against each other and cannot move in a pressing direction relative to the shell, and the switch button cannot be pressed and triggered; when the shell moves to the second position and is positioned by the movable positioning structure, the switch button is away from the limiting portion and can move in a pressing direction relative to the shell, and the switch button can be pressed and triggered.

[0013] In order to enable the shell to move left and right relative to the mounting seat, and to rotate relative to the mounting seat, the shell includes a cylindrical rear shell and a front shell arranged on the peripheral wall of the rear shell, the light-emitting body is arranged in the front shell, the mounting seat includes a mounting plate and two ear plates arranged on the mounting plate and extending forward, the two ends of the rear shell can movably pass through the two ear plates respectively, the switch button can be inserted and matched with one of the ends of the rear shell in a movable manner, and an ear plate close to the switch button is the limiting part. A through hole is provided on the ear plate for the rear shell to pass through, and the rear shell can move left and right and rotate relative to the through hole, thereby realizing the left and right movement and rotation of the lamp head; in addition, the limiting part is one of the ear plates, which is equivalent to the ear plate having multiple uses, which can not only install the shell, but also serve as the limiting part of the limit switch button.

[0014] The movable positioning structure can have a variety of structural forms. Preferably, the movable positioning structure includes a positioning groove provided on the mounting plate and a convex strip provided on the outer peripheral wall of the rear shell. There are two positioning grooves and they are spaced apart in the left-right direction. Each positioning groove extends in the up-down direction. The convex strip can be stuck in the positioning groove. When the convex strip is placed in one of the positioning grooves, the limit part and the switch button are against each other; when the convex strip is placed in the other positioning groove, there is a distance between the limit part and the switch button, that is, the switch button is away from the limit part, so that the switch button can be pressed to turn the headlight on and off. The movable positioning structure has a simple structure and is convenient for the cooperation between the rear shell and the mounting plate. As long as the convex strip is moved to the positioning groove, the lamp head can be prevented from moving left and right.

[0015] In order to position the lamp head after it is rotated to a suitable angle, a plurality of limit grooves are provided on the rear circumferential wall of the rear shell at circumferential intervals, and a limit strip that can be clamped in the limit groove is provided on the mounting plate. The limit strip and the limit groove together constitute a rotation positioning structure for rotationally positioning the lamp head.

[0016] In order to prevent the lamp head from having a hard interference with the mounting seat when rotating or moving left and right, a through hole is provided on the mounting plate, and a mounting piece is formed on one of the side walls of the through hole, and the positioning groove and the limit strip are both provided on the mounting piece. The mounting piece can have a slight swing amplitude relative to the mounting plate, and when the lamp head rotates or swings, the mounting piece swings slightly to prevent hard interference with the rear shell, and will not affect the working reliability of the mobile positioning structure and the rotating positioning structure.

[0017] In order to make the structure compact, the limit strip extends in the left and right directions and passes through the two positioning grooves, so that the movable positioning structure and the rotation positioning structure are distributed more concentratedly, and the lamp head can rotate relative to the mounting base regardless of whether the switch button is against the limit part.

[0018] Preferably, a convex portion is formed on the rear peripheral wall of the rear shell, and the limiting groove and the convex strip are both formed on the convex portion. The setting of the convex portion not only ensures that the limiting groove can contact the limiting strip, and the convex strip can contact the positioning groove, but also prevents other parts of the rear shell from contacting the mounting plate to affect the movement or rotation of the lamp holder.

[0019] In order to facilitate the arrangement of the battery, a battery for supplying power to the light-emitting body is provided in the rear shell and extends in the left-right direction.

[0020] In order to save the electric energy of the headlamp, when it is not in use temporarily, it is necessary to manually operate the switch button to turn off the headlamp, and then manually turn it on again when it is used again. Once the frequency of turning on and off is too high, frequent operations are required, which wastes a lot of time and causes the user to simply turn it on or off frequently, which is very inconvenient. Therefore, an infrared sensor and a circuit board for the infrared sensor to be installed on the front shell are provided in the front shell, and a light-transmitting cover corresponding to the infrared sensor and a control switch for controlling whether the infrared sensor works or not are provided on the front shell. The light-emitting body, battery, circuit board and control switch are electrically connected to form a lighting circuit, and the switch button can control the on and off of the lighting circuit. By making the infrared sensor sense the signal of turning on or off, it can ensure that the entire headlamp can be turned on or off conveniently and quickly. For example, through the user's gesture, the headlamp can be turned on by waving, and turned off by waving again, which is very convenient and does not require repeated operation of the switch, which not only prolongs the service life of the switch, but also saves time.

[0021] Preferably, the infrared sensor includes an infrared transmitter and an infrared receiver, a positioning frame is provided in the front shell, two light-transmitting holes corresponding to the light-transmitting cover are provided on the positioning frame, the infrared transmitter and the infrared receiver are respectively inserted into the two light-transmitting holes, and the positioning frame positions the circuit board and the infrared sensor in the front shell.

[0022] Compared with the prior art, the advantages of the present invention are as follows: the present invention enables the shell on which the light-emitting body is mounted to not only rotate relative to the mounting seat to adjust the direction of light projection, but also to move left and right relative to the mounting seat, and a limiting portion is provided on the mounting seat, so that when the shell moves to the point where the switch button and the limiting portion abut against each other, the switch button cannot move in the pressing direction, that is, at this time the switch button is positioned relative to the shell and cannot be pressed to trigger, so that the switch button will not be mistakenly triggered when the lamp head is rotated, thereby ensuring the working reliability of the headlamp when in use; when the headlamp needs to be turned on and off by the switch button, the shell is moved to a position where the switch button is away from the limiting portion, at which time the switch button can move in the pressing direction relative to the shell, and the switch button can be pressed to control the turning on and off of the headlamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure without the headband;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure in another direction;

[0026] Figure 4 for Figure 3 Schematic diagram of the decomposition of

[0027] Figure 5 for Figure 4 A schematic diagram of the structure of the mounting plate in FIG.

[0028] Figure 6 for Figure 4 The structural diagram of the lamp holder in FIG.

[0029] Figure 7 for Figure 3 (the housing is in the second position);

[0030] Figure 8 for Figure 3 (the housing is in a first position);

[0031] Fig. 9 for Figure 3 A cross-sectional view in another direction;

[0032] Fig.10 for Fig. 9 A schematic diagram of another direction;

[0033] Fig.11 for Figure 3 Another decomposition diagram of . DETAILED DESCRIPTION

[0034] The present invention is further described in detail below with reference to the accompanying drawings.

[0035] like Figures 1 to 11 As shown, the headlamp for preventing a switch from being triggered by mistake in this preferred embodiment comprises a headband 1, a mounting base 2, a lamp holder 3, a switch button 4 and an infrared sensor 5, and the headband 1 is ring-shaped.

[0036] like Figure 1 , 4 As shown in FIGS. 5 and 6 , the mounting base 2 is connected to the headband 1. The mounting base 2 includes a mounting plate 21 and two ear plates 22 which are relatively arranged on the mounting plate 21 and extend forward. Connecting holes 210 are respectively opened on the mounting plate 21 adjacent to the left and right side edges. The headband 1 passes through the two connecting holes 210 in sequence to realize the assembly of the mounting base 2 on the headband 1.

[0037] like Figures 4 to 10 As shown, the lamp holder 3 includes a shell 31 rotatably mounted on the front part of the mounting base 2 and a light-emitting body 32 arranged in the shell 31, wherein the shell 31 includes a cylindrical rear shell 33 and a front shell 34 arranged on the peripheral wall of the rear shell 33, a through hole can be opened on the peripheral wall of the rear shell 33, and the front shell 34 is formed at the periphery of the through hole, the light-emitting body 32 is arranged in the front shell 34, and a battery 35 is arranged in the rear shell 33, and the battery 35 extends in the left and right directions. The two ends of the rear shell 33 can movably pass through two ear plates 22 respectively, and each ear plate 22 is provided with a through hole 221 for the rear shell 33 to pass through. The rear shell 33 can move left and right and rotate circumferentially relative to the through hole 221, so that the lamp holder 3 as a whole can move left and right and rotate circumferentially relative to the mounting base 2, and the rotation of the lamp holder 3 can change the light projection direction and lighting brightness.

[0038] The switch button 4 can be inserted and matched with one end of the rear shell 33 so as to be movable left and right, and when the housing 31 moves left and right, the switch button 4 can move accordingly. The switch button 4 can resist and match with the limiting part on the mounting seat 2, and an ear plate 22 close to the switch button 4 is the limiting part. In this embodiment, Figure 2 , 7 As shown, the right end of the rear shell 33 is inserted into the switch button 4, and a spring 41 is provided in the rear shell 33 to act on the switch button 4 to keep the switch button 4 moving to the right, and the ear plate 22 on the right side is a limiting part.

[0039] A movable positioning structure is provided between the shell body 31 and the mounting base 2. In this embodiment, the movable positioning structure includes a positioning groove 211 provided on the mounting plate 21 and a convex strip 331 provided on the outer peripheral wall of the rear shell 33. There are two positioning grooves 211 and they are arranged at intervals along the left-right direction. Each positioning groove 211 extends along the up-down direction. The convex strip 331 can be clamped in the positioning groove 211.

[0040] A rotation positioning structure is provided between the lamp holder 3 and the mounting base 2. In this embodiment, a plurality of limiting grooves 332 are provided at circumferential intervals on the rear peripheral wall of the rear shell 33, and a limiting strip 212 which can be clamped in the limiting groove 332 is provided on the mounting plate 21. The above-mentioned limiting strip 212 and the limiting groove 332 together constitute a rotation positioning structure for rotationally positioning the lamp holder 3.

[0041] In this embodiment, a through hole 213 is provided on the mounting plate 21, and a mounting piece 214 is formed on one of the side walls of the through hole 213. The positioning groove 211 and the limiting strip 212 are both provided on the mounting piece 214, and the limiting strip 212 extends in the left-right direction and passes through the two positioning grooves 211. Correspondingly, both left and right sides of the convex strip 331 have limiting grooves 332. The mounting piece 214 can have a slight swing amplitude relative to the mounting plate 21. When the lamp holder 3 rotates or swings, the mounting piece 214 swings slightly to prevent hard interference with the rear shell 33, and will not affect the working reliability of the mobile positioning structure and the rotating positioning structure.

[0042] A convex portion 333 is provided on the rear peripheral wall of the rear shell 33 , and the convex strip 331 and the limiting groove 332 are both provided on the convex portion 333 .

[0043] like Figure 8 As shown, when the housing 31 moves to the first position, the convex strip 331 is placed in the left positioning groove 211 to position the housing 31 relative to the mounting base 2, and the limit portion and the switch button 4 are against each other. At this time, when the lamp holder 3 rotates relative to the mounting base 2, the switch button 4 cannot be pressed to the left, that is, the switch button 4 cannot move in the pressing direction relative to the housing 31, and the switch button 4 cannot be pressed and triggered, so that the switch button 4 will not be triggered by mistake; Figure 7 As shown, when the shell 31 moves to the second position, the convex strip 331 is placed in the positioning groove 211 on the right side to position the shell 31 relative to the mounting base 2, and there is a distance L between the limiting portion and the switch button 4, that is, the switch button 4 is away from the limiting portion and can move in the pressing direction relative to the shell 31. At this time, the switch button 4 can be pressed to trigger the headlight to turn on and off. In addition, in the structure of this embodiment, when the switch button 4 can be pressed, the lamp head 3 can also rotate relative to the mounting base 2.

[0044] like Fig.10 , 11As shown, in order to save the electric energy of the headlamp, it is necessary to manually operate the switch button 4 to turn off the headlamp when it is not in use temporarily, and then manually turn it on again when it is enabled again. Once the frequency of turning on and off is too high, frequent operations are required, which wastes a lot of time and causes the user to simply turn it on or not, which is very inconvenient. Therefore, an infrared sensor 5 and a circuit board 6 for mounting the infrared sensor 5 are provided in the front shell 34, and a light-transmitting cover 7 corresponding to the infrared sensor 5 and a control switch 71 for controlling whether the infrared sensor 5 works or not are provided on the front shell 34. The control switch 71 can be a push-button switch, and the control switch 71 is arranged on the light-transmitting cover 7, and the light-transmitting cover 7 is arranged at the lower part of the front shell 34 for easy operation. The light-emitting body 32, the battery 35, the circuit board 6 and the control switch 71 are electrically connected to form a lighting circuit, and the switch button 4 can control the on and off of the lighting circuit.

[0045] The infrared sensor 5 includes an infrared transmitter 51 and an infrared receiver 52. A positioning frame 8 is provided in the front shell 34. The positioning frame 8 is provided with two light-transmitting holes 81 corresponding to the light-transmitting cover 7 so that light at the light-transmitting holes 81 can be transmitted. The infrared transmitter 51 and the infrared receiver 52 are respectively inserted into the two light-transmitting holes 81. The positioning frame 8 positions the circuit board 6 and the infrared sensor 5 in the front shell 34.

[0046] In actual use, turn on the switch button 4, which is equivalent to the main switch of the entire headlamp. After turning it on, the lighting circuit is connected, the light-emitting body 32 emits light, and the entire headlamp is in the on state. At this time, if the headlamp needs to be turned on or off frequently, the control switch 71 must be turned on. At this time, whether the headlamp is turned on or off is controlled by the infrared sensor 5. When the infrared sensor 5 senses the on signal, the headlamp can be made to work. When the infrared sensor 5 senses the off signal, the light-emitting body 32 is turned off to make the headlamp in the off state. The on and off signals mentioned here can be in various forms. In this embodiment, they refer to the user's gestures, that is, the headlamp can be turned on by waving, and turned off by waving again, which is very convenient. In addition, the infrared sensor 5 of this embodiment is located at the lower part of the front shell 34, which is convenient for the user to trigger the infrared sensor 5.

Claims

1. A headlamp for preventing a switch from being accidentally triggered, comprising: A headband (1) in a ring shape; A mounting seat (2) connected to the headband (1); The lamp holder (3) comprises a housing (31) rotatably mounted on the front of the mounting seat (2) and a light emitting body (32) disposed in the housing (31); A switch button (4) is movably arranged on a housing (31) of the lamp holder (3); It is characterized in that The housing (31) can also move left and right relative to the mounting seat (2) and a movable positioning structure is provided between the two. A limiting portion is provided on the mounting seat (2). When the housing (31) moves to a first position and is positioned by the movable positioning structure, the switch button (4) and the limiting portion abut against each other and cannot move in a pressing direction relative to the housing (31), and the switch button (4) cannot be pressed to trigger; when the housing (31) moves to a second position and is positioned by the movable positioning structure, the switch button (4) is away from the limiting portion and can move in a pressing direction relative to the housing (31), and the switch button (4) can be pressed to trigger; The housing (31) comprises a cylindrical rear housing (33) and a front housing (34) arranged on the peripheral wall of the rear housing (33); the luminous body (32) is arranged in the front housing (34); the mounting seat (2) comprises a mounting plate (21) and two ear plates (22) arranged on the mounting plate (21) and extending forward; the two ends of the rear housing (33) can movably pass through the two ear plates (22); the switch button (4) can be inserted and matched with one end of the rear housing (33) in a manner that it can move left and right; and an ear plate (22) close to the switch button (4) is the limiting portion.

2. The headlamp for preventing a switch from being accidentally triggered according to claim 1, characterized in that: The movable positioning structure comprises a positioning groove (211) provided on the mounting plate (21) and a convex strip (331) provided on the outer peripheral wall of the rear shell (33); the positioning grooves (211) are provided in two pieces and are arranged at intervals in the left-right direction; each positioning groove (211) extends in the up-down direction; and the convex strip (331) can be clamped in the positioning groove (211).

3. The headlamp for preventing a switch from being accidentally triggered according to claim 2, characterized in that: A plurality of limiting grooves (332) are provided at intervals along the circumferential direction on the rear peripheral wall of the rear shell (33); a limiting strip (212) capable of being clamped in the limiting groove (332) is provided on the mounting plate (21); the limiting strip (212) and the limiting groove (332) together constitute a rotation positioning structure for rotationally positioning the lamp holder (3).

4. The headlamp for preventing a switch from being accidentally triggered according to claim 3, characterized in that: The limiting strip (212) extends in the left-right direction and passes through the two positioning grooves (211).

5. The headlamp for preventing a switch from being accidentally triggered according to claim 3, characterized in that: A through hole (213) is provided on the mounting plate (21), a mounting sheet (214) is formed on one of the side walls of the through hole (213), and the positioning groove (211) and the limiting strip (212) are both provided on the mounting sheet (214).

6. The headlamp for preventing a switch from being accidentally triggered according to claim 3, characterized in that: A convex portion (333) is formed on the rear peripheral wall of the rear shell (33), and the limiting groove (332) and the convex strip (331) are both formed on the convex portion (333).

7. The headlamp for preventing a switch from being triggered by mistake according to any one of claims 2 to 6, characterized in that: A battery (35) extending in the left-right direction and supplying power to the light-emitting body (32) is arranged in the rear shell (33).

8. The headlamp for preventing a switch from being accidentally triggered according to claim 7, characterized in that: The front shell (34) is provided with an infrared sensor (5) and a circuit board (6) on which the infrared sensor (5) is mounted. The front shell (34) is provided with a light-transmitting cover (7) corresponding to the infrared sensor (5) and a control switch (71) for controlling whether the infrared sensor (5) works or not. The light-emitting body (32), the battery (35), the circuit board (6) and the control switch (71) are electrically connected to form a lighting circuit. The switch button (4) can control the on and off of the lighting circuit.

9. The headlamp for preventing a switch from being accidentally triggered according to claim 8, characterized in that: The infrared sensor (5) comprises an infrared transmitter (51) and an infrared receiver (52). A positioning frame (8) is provided inside the front shell (34). The positioning frame (8) is provided with two light-transmitting holes (81) corresponding to the light-transmitting cover (7). The infrared transmitter (51) and the infrared receiver (52) are respectively inserted into the two light-transmitting holes (81).

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