CN101770140B - Automatic opening device for flashlight - Google Patents

Abstract

The invention relates to an automatic opening device of a flash lamp, which comprises a base unit for installing the flash lamp, a driving unit, a slide block, a rotary buckle piece and a torsion spring which are arranged on the slide block, and a clamping tenon.

Description

Automatic opening device for flashlight

technical field

The invention relates to an optical device, in particular to an automatic opening device for a flash lamp.

Background technique

Referring to Fig. 1, a kind of flashlight automatic opening device 1 in the past is used for such as the optical device of camera, comprises electromagnetic actuator 11, the upright rotating arm 12 linked with this electromagnetic actuator 11, and is installed on this upright rotating arm 12 and hooked to the buckle 13 of the flash A. When the flashlight A is to be turned on, the electromagnetic actuator 11 pushes the upright rotating arm 12 to rotate, so that the buckle 13 is disengaged from the flashlight A to allow the flashlight A to be turned on.

Since the upright rotating arm 12 is set upright relative to the base wall 14, the thickness occupied by the automatic opening device 1 is too thick, which affects the overall size of the camera and cannot be reduced, and cannot meet the current market demand for thinness and shortness.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to provide an automatic opening device for a flashlight that can reduce the thickness in view of the defect that the automatic opening device for the flashlight is too thick in the prior art.

Therefore, the technical solution adopted by the present invention to solve the technical problem is to provide an automatic opening device for a flashlight, which is suitable for being installed on an optical device and used for turning on the flashlight, and the flashlight keeps turning toward the open state. The automatic opening device contains:

A base unit, on which the flashlight is openably mounted, includes a base wall with a perforation, and a first guide portion disposed on the bottom surface of the base wall;

The driving unit includes an electromagnetic actuator fixed under the base wall, and a push block installed on the electromagnetic actuator and stretching along the transverse direction parallel to the base wall. The driving unit is between the initial position and the open position. displacement;

The slider is fixedly installed with the push block of the driving unit, and is displaceably installed on the base unit along the transverse direction, and the slider includes a second guide part for the first guide part of the base unit to slide ;

The rotating buckle is rotatably installed on the slider;

The torsion spring is arranged between the slider and the rotating buckle, and can keep turning the rotating buckle to the initial position, including a first end connected with the slider, and a second end connected with the rotating buckle. end; and

The tenon includes a pivoting part that is rotatably pivoted to the base unit, a pushed part that is pushed against by the rotating buckle, and a hook part that passes through the base unit and buckles the flashlight. When the flashlight is to be turned on, the drive unit moves from the initial position to the open position. At this time, the push block of the drive unit drives the slide block to slide, so that the rotating buckle retreats from the pushed part of the tenon to allow the The tenon is rotated so that the hook portion of the tenon is separated from the flashlight to turn on the flashlight. After the flashlight is turned on, the drive unit returns to the initial position.

According to the automatic opening device for the flashlight of the present invention, the base unit further includes a pair of pivot lugs disposed on the bottom surface of the base wall adjacent to the through hole, and the pivot portion of the tenon is pivotally connected to the pair of pivot lugs.

According to the automatic opening device for the flashlight of the present invention, the rotating buckle includes a limiting protrusion abutting against the slide block for preventing the rotating buckle from continuing to rotate after reaching the initial position.

According to the automatic opening device for the flashlight of the present invention, the slider further includes a mounting column, and the torsion spring and the rotating buckle are installed on the mounting column.

According to the automatic opening device for the flashlight of the present invention, the slider further includes a positioning groove for the first end of the torsion spring.

According to the automatic opening device for the flashlight of the present invention, the first guide part is a guide post, and the second guide part is a guide groove through which the guide post can slide. .

The effect of the present invention is that the driving unit, the slider, the rotating buckle, and the torsion spring are all arranged in the transverse direction, so as to effectively reduce the thickness occupied by the automatic opening device, thereby meeting the market demand.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a sectional side view illustrating a conventional automatic opening device for a flashlight;

Fig. 2 is a perspective view illustrating a preferred embodiment of an automatic opening device for a flashlight of the present invention;

Figure 3 is a view similar to Figure 2, illustrating the preferred embodiment of the strobe in the on position;

Fig. 4 is a three-dimensional exploded view illustrating the assembly relationship of the preferred embodiment;

Figure 5 is a front view illustrating the preferred embodiment in the initial position;

Fig. 6 is a sectional side view, illustrating that the tenon of the preferred embodiment is in the initial position;

Figure 7 is a view similar to Figure 5, illustrating the preferred embodiment in the open position;

Fig. 8 is a view similar to Fig. 6, illustrating that the flashlight of the present preferred embodiment is turned on;

Figure 9 is a view similar to Figure 5 illustrating the preferred embodiment back to the open position; and

Figure 10 is a view similar to Figure 6, illustrating the preferred embodiment with the flash turned off.

Detailed ways

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with accompanying drawings.

Referring to Fig. 2, Fig. 3 and Fig. 4, a preferred embodiment of the automatic opening device of the flashlight of the present invention is suitable for being installed on the optical device B taking a camera as an example and used for turning on the flashlight C, and the flashlight C is constantly facing toward the Turn on the trend of the state rotation.

The automatic opening device includes a base unit 2 , a driving unit 3 , a slider 4 , a rotating buckle 5 , a torsion spring 6 and a tenon 7 . The flashlight C includes a slot C1 (see FIG. 6 ) for the hook of the tenon 7 .

The flashlight C is mounted on the base unit 2 in an openable manner. The base unit 2 includes a base wall 20 having a through hole 21 , a first guiding portion 22 disposed on the bottom of the base wall 20 , and a pair of pivot ears 23 disposed on the bottom of the base wall 20 adjacent to the through hole 21 . In this preferred embodiment, the first guiding portion 22 is two guiding posts.

Referring to FIG. 4, FIG. 5 and FIG. 6, the drive unit 3 includes an electromagnetic actuator 31 fixed below the base wall 20, and is installed on the electromagnetic actuator 31 along a horizontal direction H parallel to the base wall 20. Telescopic push block 32. In this preferred embodiment, a normally closed electromagnetic actuator 31 is selected, and the electromagnetic actuator 31 is in a normally closed state when no power is applied, and the push block 32 is held still by magnetic force. After the device 31 is energized, the magnetic force of the original magnet and the magnetic force of the coil after energization cancel each other out, so that the magnetic force of the electromagnetic actuator 31 disappears. At this time, the push block 32 pushes out the electromagnetic actuator 31. When the electromagnetic actuator 31 restores the magnetic force when the power is turned off, and the push block 32 retracts into the electromagnetic actuator 31 at this time.

The sliding block 4 is fixedly installed with the push block 32 of the driving unit 3 , and can be displaced along the transverse direction H when the electromagnetic actuator 31 is powered on or off. The slider 4 includes a second guide part 41 for the first guide part 22 of the base unit 2 to slide, a mounting column 42 for the rotation buckle 5 and the torsion spring 6 to be installed, and a mounting column 42 for the torsion spring 6 to be installed. The positioning groove 43. In this preferred embodiment, the second guiding portion 41 is two guiding slots for the first guiding portion 22 to slide through.

It is worth mentioning that the first guiding portion 22 can also be a guiding post, and the second guiding portion 41 is also just a guiding groove. (not shown)

The rotating buckle 5 is rotatably mounted on the mounting post 42 of the slider 4 . The rotating buckle 5 includes a limiting protrusion 51 against the sliding block 4 .

The torsion spring 6 is arranged between the slider 4 and the rotating buckle 5, and can keep turning the rotating buckle 5 to the initial position, including a first end 61 connected to the positioning groove 43 of the slider 4, and The second end 62 linked with the rotating buckle 5 . Since the rotating buckle 5 is constantly pushed to the initial position by the torsion spring 6 , the limiting protrusion 51 prevents the rotating buckle 5 from continuing to rotate after reaching the initial position. When the tenon 7 rotates, the second end 62 of the torsion spring 6 is exerted by the rotating buckle 5 .

The tenon 7 includes a pivot portion 71 rotatably pivoted to the pivot ear 23 of the base unit 2 , a pushed portion 72 abutted by the rotating buckle 5 , and passing through the hole 21 of the base unit 2 and Buckle the hook portion 73 of the slot C1 of the flashlight C.

Referring to Fig. 5, Fig. 7 and Fig. 8, the drive unit 3 drives the flashlight C to move between the initial position and the open position. When the flashlight C is to be turned on, the drive unit 3 moves from the initial position to the open position. The push block 32 of the drive unit 3 stretches out, and drives the slider 4 to slide away from the electromagnetic actuator 31, so that the rotating buckle 5 is withdrawn from the pushed part 72 of the tenon 7 to allow the The tenon 7 is rotated, and the hook portion 73 of the tenon 7 is disengaged from the slot C1 of the flashlight C to turn on the flashlight C. When the flashlight C is turned on, the drive unit 3 returns to the initial position, and the slider 4, rotates Buckle 5, torsion spring 6, tenon 7 also return to initial position.

Referring to Fig. 9 and Fig. 10, when the flashlight C is to be turned off, the tenon 7 will be pushed, the tenon 7 will be rotated and pressed against the rotary buckle 5, at this time the second end 62 of the torsion spring 6 Received the force of the rotating buckle 5 , and then approaches the first end 61 of the torsion spring 6 . After the flashlight C is completely closed and returned to the initial position, the tenon 7 is pushed back to the initial position by the elastic restoring force of the torsion spring 6, so that the hook portion 73 of the tenon 7 is hooked to the hook of the flashlight C. Slot C1.

To sum up, since the driving unit 3, the slider 4, the rotating buckle 5, and the torsion spring 6 are all arranged in the transverse direction H, the thickness of the automatic opening device can be effectively reduced, so that the purpose of the present invention can indeed be achieved. Purpose.

The above descriptions are only preferred embodiments of the present invention, and cannot limit the scope of the present invention with this. All simple equivalent changes and modifications made according to the claims of the present invention and the content of the description of the invention still belong to the present invention. .

Claims (6)

1. the automatic open device of a flashlamp is applicable to be installed on the optical devices and to be used to open flashlamp that the permanent trend of rotating towards opening of protecting of this flashlamp is characterized in that this automatic open device comprises:

Base unit, this flashlamp can be installed on this base unit with opening, comprises the basal wall with perforation, and is arranged at first guidance part of this basal wall bottom surface;

Driver element comprises the electromagnetic actuators that is installed in this basal wall below, and the pushing block that is installed on this electromagnetic actuators and stretches along the transverse direction that is parallel to this basal wall, the displacement between initial position and open site of this driver element;

Slide block with this driver element pushing block fixed installation, and can be installed on this base unit with displacement along this transverse direction, and this slide block comprises second guidance part for this base unit first guidance part slippage;

The rotation cramp is rotatably mounted on this slide block;

Torsion spring is arranged between this slide block and rotation cramp, and can permanent maintenance should rotate cramp and turn to this initial position, comprises first end that is connected with this slide block, reaches and this rotates second end of cramp interlock; And

Trip, comprise the articulated section that rotatably is articulated in this base unit, the pushed part that is subjected to this rotation cramp contact, and pass the perforation of this base unit and fasten the hook part of this flashlamp, when desire is opened this flashlamp, this driver element by this initial position to this open site, this moment, the pushing block of this driver element drove this slide block slippage, make this rotation cramp recess the pushed part of this trip and then allow the rotation of this trip, allowing the hook part of this trip break away from this flashlamp opens this flashlamp, after flashlamp was opened, this driver element returned back to this initial position.

2. according to the automatic open device of the described flashlamp of claim 1, it is characterized in that this base unit comprises that more this perforation of a pair of vicinity is arranged at the pivot ear of this basal wall bottom surface, the articulated section of this trip is articulated in this on the pivot ear.

3. according to the automatic open device of the described flashlamp of claim 1, it is characterized in that this rotation cramp comprises the spacing protuberance that abuts against in this slide block, be used to prevent be rotated further after this rotation cramp from arriving this initial position.

4. according to the automatic open device of the described flashlamp of claim 3, it is characterized in that this slide block more comprises erection column, this torsion spring is to be installed on this erection column with the rotation cramp.

5. according to the automatic open device of the described flashlamp of claim 4, it is characterized in that this slide block more comprises the positioning groove that is provided with for this torsion spring first end.

6. according to the automatic open device of the described flashlamp of claim 1, it is characterized in that this first guidance part is a guide pillar, the guide groove of this second guidance part for wearing slippingly for this guide pillar.

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