CN112394595B

CN112394595B - Movable lamp holder

Info

Publication number: CN112394595B
Application number: CN202011324119.6A
Authority: CN
Inventors: 叶方卓
Original assignee: Shanghai Jiale Electronic Co ltd
Current assignee: Shanghai Jiale Electronic Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-09-28
Anticipated expiration: 2040-11-23
Also published as: CN112394595A

Abstract

The utility model relates to a movable lamp holder, it includes first casing, first casing slides and is connected with the second casing, fixedly connected with step motor on the outer wall of first casing, first casing is worn to locate by step motor's pivot, step motor's pivot fixedly connected with gear, the coaxial setting of gear and step motor's pivot, can dismantle on the terminal surface of second casing and be connected with the LED light source, the inner wall fixedly connected with slide rail of second casing, the length direction of slide rail is perpendicular with the length direction of step motor pivot, slide rail and gear engagement are connected. The distance that the second casing stretches out or contracts can be controlled accurately to this application to adapt to different behavior.

Description

Movable lamp holder

Technical Field

The application relates to the field of photography, in particular to a movable lamp cap.

Background

The flashlight is a commonly used photographic device, which is a device for lighting and enhancing exposure, and is generally connected with a support frame on the ground through a connecting plug.

The lamp cap of the flash lamp in the related art can move along the length direction of the shell of the flash lamp, the side wall of the shell is provided with a knob for controlling the lamp cap to move, and the position of the lamp cap in the shell can be adjusted according to different environments in use.

In view of the above-mentioned related art, the inventor considers that the moving distance of the lamp cap of the related art on the housing is difficult to control by the button, and the lamp cap is easy to extend or retract in a large range.

Disclosure of Invention

In order to be able to better control the distance that the lamp head extends, the present application provides a mobile lamp head.

The application provides a portable lamp holder adopts following technical scheme:

the utility model provides a portable lamp holder, includes first casing, first casing slides and is connected with the second casing, fixedly connected with step motor on the outer wall of first casing, first casing is worn to locate by step motor's pivot, step motor's pivot fixedly connected with gear, the gear with step motor's the coaxial setting of pivot, can dismantle on the terminal surface of second casing and be connected with the LED light source, the inner wall fixedly connected with slide rail of second casing, the length direction of slide rail with the length direction of step motor pivot is perpendicular, the slide rail with gear engagement connects.

Through adopting above-mentioned technical scheme, use step motor to drive the change of position between second casing and the first casing, make the change of position of second casing on first casing can move according to the parameter that step motor set up, step motor drives the gear and rotates, gear engagement slide rail, the position that drives the second casing when the slide rail removes changes, step motor not only makes the displacement distance of second casing can accurate handle, and the operation of staff wrench movement knob has been saved again, make the operation more convenient, can adapt to different shooting scenes according to the extended position of second casing.

Optionally, step motor's pivot fixedly connected with dwang, gear fixed connection is on the dwang, two axle sleeves of the inner wall fixedly connected with of first casing, two axle sleeve symmetric distribution is in the both ends of dwang, the dwang rotates to be connected in the axle sleeve.

Through adopting above-mentioned technical scheme, the dwang makes to be connected the fastening between step motor and the first casing to played the effect of direction, the axle sleeve is fixed on the casing, and the dwang rotates to be connected on the axle sleeve, and the axle sleeve has played spacing effect to the dwang.

Optionally, fixedly connected with mounting bar on the terminal surface inner wall of second casing, the mounting bar with slide rail parallel arrangement, fixed connection can be dismantled to the slide rail on the mounting bar.

Through adopting above-mentioned technical scheme, the mounting bar is fixed on the second casing, and the slide rail can be dismantled and fix on the mounting bar, and the mounting bar has increased the area of contact of slide rail and second casing, makes the slide rail be difficult for appearing connecting unstable condition because of supporting second casing and other subassemblies.

Optionally, a sliding groove is formed in the side walls of the two sides of the meshing portion of the sliding rail, the rotating rod is detachably connected with a limiting frame, the gear is located in the limiting frame, an opening penetrating through the side wall is formed in the side wall of the limiting frame, and the two ends of the opening are clamped in the sliding groove.

Through adopting above-mentioned technical scheme, but spacing joint has played spacing and protected effect on the dwang, and spacing joint is in the inslot that slides, can make gear and slide rail be in on the same height.

Optionally, the side walls of the two sides of the opening of the limiting frame are arc-shaped, and the side wall of the sliding groove is in a wave shape matched with the arc-shaped.

Through adopting above-mentioned technical scheme, when gear revolve drive slide rail when moving forward or backward often, the inner wall in groove that slides will produce pressure with the lateral wall of spacing, sets up the lateral wall of spacing into circular-arc, can when the slide rail back-and-forth movement, and have the certain distance between the lateral wall of spacing to can reduce the pressure between the lateral wall of inslot wall that slides and spacing, and the lateral wall in groove that slides can with the shape adaptation of spacing.

Optionally, the sliding groove and the side wall in contact with the limiting frame are provided with a gasket.

Through adopting above-mentioned technical scheme, produce pressure between the lateral wall in groove and the lateral wall of spacing when sliding and make, the gasket can play the effect of buffering.

Optionally, a heat sink is fixedly connected to the second housing, and the heat sink includes a plurality of fins.

By adopting the technical scheme, the heat radiator can timely radiate the heat generated by the LED light source, so that the temperature in the shell is not too high, the surface area of the heat radiator is increased by the radiating fins, and the heat radiating effect is enhanced.

Optionally, a heat dissipation shell is fixedly connected to the inner wall of the end face of the second shell, and the heat dissipation shell is located on the periphery of the heat sink.

Through adopting above-mentioned technical scheme, the heat dissipation shell has played supplementary radiating effect on the one hand, and on the other hand can play the effect of the interior subassembly of protection casing, and when the second casing stretched out first casing, the inside subassembly of second casing can not expose outside.

Optionally, a sliding hole is formed in the inner wall of the heat dissipation shell, the rotating rod is connected with the sliding hole in an inserted mode and connected in a sliding mode, and a limiting portion is arranged at the end portion of the sliding hole.

Through adopting above-mentioned technical scheme, the hole of sliding can play spacing effect to the dwang, and the second casing can not break away from because of the protrusion distance overlength and between the first casing.

Optionally, a plurality of support bars of fixedly connected with on the inner wall of first casing, be provided with on the outer wall of heat dissipation shell with the joint groove of support bar cooperation grafting, the support bar slides and sets up the joint inslot.

Through adopting above-mentioned technical scheme, support bar and joint groove enable to connect the fastening between first casing and the second casing, make the second casing when stretching out and contracting, difficult production is rocked.

In summary, the present application includes at least one of the following beneficial technical effects:

the distance of mutual movement between the first shell and the second shell can be accurately controlled through the stepping motor, and different working environments can be adapted according to the extending and retracting distance of the second shell in the first shell;

the components in the shell can be protected;

can have the heat dissipation effect at the same time.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram showing an internal structure according to an embodiment of the present application.

Fig. 3 is an exploded view of the slide rail and the gear according to the embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Description of reference numerals: 1. a first housing; 11. a shaft sleeve; 12. a supporting strip; 2. a second housing; 21. mounting a bar; 22. a slide rail; 221. a sliding groove; 2211. a gasket; 23. an LED light source; 24. a heat sink; 241. a heat sink; 25. heat dissipation holes; 26. a heat dissipation housing; 261. a clamping groove; 262. a sliding hole; 263. a limiting part; 3. a stepping motor; 31. rotating the rod; 311. a clamping part; 32. a gear; 33. a limiting frame; 331. an arc-shaped groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses portable lamp holder. Referring to fig. 1, the movable lamp cap includes a first housing 1, a second housing 2 and a stepping motor 3, the second housing 2 is slidably connected to an inner wall of the first housing 1, and the stepping motor 3 is fixedly mounted on an outer wall of the first housing 1.

Referring to fig. 2, a rotating shaft of the stepping motor 3 penetrates through the first housing 1, a rotating rod 31 is fixedly connected to the rotating shaft of the stepping motor 3, and a gear 32 is connected to a peripheral spline of the rotating rod 31. The end face of the first housing 1 is provided with two shaft sleeves 11, the two shaft sleeves 11 are symmetrically distributed at two ends of the rotating rod 31, and the rotating rod 31 penetrates through the shaft sleeves 11 and can rotate in the shaft sleeves 11 under the driving of the stepping motor 3. The second housing 2 is integrally provided with a mounting bar 21, the mounting bar 21 is perpendicular to the end face of the second housing 2, and the mounting bar 21 and the gear 32 are arranged at the same height. The side wall of the mounting bar 21 close to the gear 32 is fixed with a slide rail 22 by screw thread, and the slide rail 22 can be engaged with the gear 32. The mounting bar 21 is integrally in a boss shape, and the area of one end close to the second housing 2 is large, so that the contact area between the mounting bar 21 and the second housing 2 can be increased, and the slide rail 22 can be more stably connected to the second housing 2. The side walls of the two sides of the slide rail 22 and the gear 32 which are engaged are provided with a sliding groove 221, and the sliding groove 221 is arranged along the length direction of the slide rail 22. Two ends of the gear 32 are provided with a limiting frame 33, and the side wall of the limiting frame 33 is provided with an arc-shaped groove 331 penetrating through the side wall.

Referring to fig. 3 and 4, the rotating rod 31 is provided with a clamping portion 311 adapted to be inserted into the arc-shaped groove 331. The engaging portion 311 enables the stopper 33 to be engaged with the rotating rod 31, and does not allow the stopper 33 to slide in the axial direction of the rotating rod 31. The position limiting frame 33 can limit the position of the gear 32 and also can play a role in protecting the gear 32. The lateral wall of spacing 33 near slide rail 22 is equipped with the opening that runs through the lateral wall both ends, and open-ended both ends joint is in sliding groove 221. Under the driving of the stepping motor 3, the slide rail 22 and the gear 32 are relatively moved due to the engagement, and the limit bracket 33 and the sliding groove 221 are relatively moved. The side walls of the two sides of the opening of the limiting frame 33 are arc-shaped, and the side wall of the sliding groove 221 is wavy. When the gear 3 rotates, the sliding rail 22 is driven to move forward or backward, and pressure is generated between the inner wall of the sliding groove 221 and the side wall of the limiting frame 33. Set up the lateral wall of spacing 33 into circular-arc, can be when slide rail 22 back-and-forth movement, have certain distance between the lateral wall with spacing 33 to can reduce the pressure between the lateral wall of sliding groove 221 inner wall and spacing 33, set up the inner wall in sliding groove into the wavy, make still joint fastening between spacing 33 and the sliding groove 221. The inner wall of the sliding groove 221 is glued with a gasket 2211, the gasket 2211 is made of soft materials such as rubber, and the gasket 2211 can play a role in buffering.

Referring to fig. 1 and 2, an LED light source 23 for emitting light is mounted on an end surface of the second housing 2. A heat sink 24 is fixedly mounted at one end of the second housing 2 away from the LED light source 23, and the heat sink 24 is used for dissipating heat generated by the LED light source 23, so that the temperature in the housing is not too high. The heat sink 24 includes a plurality of radial fins 241, and the fins 241 can increase the surface area of the heat sink 24 to enhance the heat dissipation effect. The end face of the second casing 2 is provided with a plurality of heat radiation holes 25 having different shapes, and the heat radiation holes 25 can discharge the heat of the heat sink 24 in time. A heat dissipation case 26 is integrally provided on an end surface of the second housing 2, and the heat dissipation case 26 surrounds a periphery of the heat sink 24. The heat dissipation case 26 can not only play a role in heat dissipation, but also protect the internal components of the second housing 2 when the second housing 2 extends out of the first housing 1, so that the internal components of the second housing 2 are not exposed to the outside.

Referring to fig. 2, the inner wall of the first housing 1 is provided with a plurality of support bars 12, and the plurality of support bars 12 are distributed along the axial circumference of the first housing 1. The lateral wall of the heat dissipation shell 26 is provided with a plurality of clamping grooves 261 which are in adaptive insertion with the support bars 12, the clamping grooves 261 are parallel to the axis of the heat dissipation shell 26, and the clamping grooves 261 penetrate through the lateral wall of the heat dissipation shell 26. The support bars 12 abut on the heat dissipation case 26, which can enhance the stability of the connection between the first housing 1 and the second housing 2. When the position between the first casing 1 and the second casing 2 changes, the supporting bar 12 can slide in the clamping groove 261.

Referring to fig. 2, the side wall of the heat dissipation casing 26 is symmetrically provided with sliding holes 262, and the sliding holes 262 are long. The rotating rod 31 is inserted into the sliding hole 262, and when the second housing 2 is extended and contracted, the rotating rod 31 can slide along the length direction of the sliding hole 262. The end of the sliding hole 262 is provided with a limiting part 263, and when the second housing 2 slides on the first housing 1, the limiting part 263 prevents the second housing 2 from separating from the second housing 2.

The implementation principle of the mobile lamp holder in the embodiment of the application is as follows: when step motor 3 starts, can drive gear 32 and rotate, slide rail 22 and gear 32 meshing, thereby drive second casing 2 and go deep into or shrink in first casing 1, can be according to the shooting condition of difference, the adjustment difference stretches out and contracts the distance, thereby LED light source 23's position, and under step motor 3's drive, can make the distance of removing between first casing 1 and the second casing 2 be convenient for control, the phenomenon of the too big or undersize of displacement is difficult to appear.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a portable lamp holder, includes first casing (1), first casing (1) slides and is connected with second casing (2), can dismantle on the terminal surface of second casing (2) and be connected with LED light source (23), its characterized in that: the outer wall of the first shell (1) is fixedly connected with a stepping motor (3), a rotating shaft of the stepping motor (3) penetrates through the first shell (1), a gear (32) is fixedly connected with the rotating shaft of the stepping motor (3), the gear (32) and the rotating shaft of the stepping motor (3) are coaxially arranged, a sliding rail (22) is fixedly connected with the inner wall of the second shell (2), the length direction of the sliding rail (22) is perpendicular to the length direction of the rotating shaft of the stepping motor (3), and the sliding rail (22) is meshed with the gear (32);

a rotating shaft (31) is fixedly connected to a rotating shaft of the stepping motor (3), the gear (32) is fixedly connected to the rotating shaft (31), two shaft sleeves (11) are fixedly connected to the inner wall of the end face of the first shell (1), the two shaft sleeves (11) are symmetrically distributed at two ends of the rotating shaft (31), and the rotating shaft (31) is rotatably connected to the inside of the shaft sleeves (11);

sliding grooves (221) are formed in the side walls of the two sides of the meshing portion of the sliding rail (22), the rotating rod (31) is detachably connected with a limiting frame (33), the gear (32) is located in the limiting frame (33), an opening penetrating through the side wall is formed in the side wall of the limiting frame (33), and the two ends of the opening are clamped in the sliding grooves (221);

the side walls of the two sides of the opening of the limiting frame (33) are arc-shaped, and the side walls of the sliding groove (221) are wavy and matched with the arc-shaped;

and a gasket (2211) is arranged on the side wall of the sliding groove (221) which is in contact with the limiting frame (33).

2. The mobile lighthead of claim 1, wherein: fixedly connected with mounting bar (21) on the terminal surface inner wall of second casing (2), mounting bar (21) with slide rail (22) parallel arrangement, fixed connection can be dismantled in slide rail (22) on mounting bar (21).

3. The mobile lighthead of claim 1, wherein: the second shell (2) is fixedly connected with a radiator (24), and the radiator (24) comprises a plurality of radiating fins (241).

4. A mobile lighthead according to claim 3 wherein: the end face inner wall of the second shell (2) is fixedly connected with a heat dissipation shell (26), and the heat dissipation shell (26) is located on the periphery of the radiator (24).

5. The mobile lighthead of claim 4, wherein: the inner wall of the heat dissipation shell (26) is provided with a sliding hole (262), the rotating rod (31) is connected in the sliding hole (262) in an inserting mode and connected in a sliding mode, and the end portion of the sliding hole (262) is provided with a limiting portion (263).

6. The mobile lighthead of claim 4, wherein: fixedly connected with a plurality of support bars (12) on the inner wall of first casing (1), be provided with on the outer wall of heat dissipation shell (26) with joint groove (261) that support bar (12) cooperation was pegged graft, support bar (12) slide and set up in joint groove (261).