WO2016061868A1 - Mécanisme de changement de rotation pas à pas et continue - Google Patents

Mécanisme de changement de rotation pas à pas et continue Download PDF

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Publication number
WO2016061868A1
WO2016061868A1 PCT/CN2014/092177 CN2014092177W WO2016061868A1 WO 2016061868 A1 WO2016061868 A1 WO 2016061868A1 CN 2014092177 W CN2014092177 W CN 2014092177W WO 2016061868 A1 WO2016061868 A1 WO 2016061868A1
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WO
WIPO (PCT)
Prior art keywords
screw
bead
focusing
polished rod
adjusting knob
Prior art date
Application number
PCT/CN2014/092177
Other languages
English (en)
Chinese (zh)
Inventor
陈志曼
Original Assignee
广州市雅江光电设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市雅江光电设备有限公司 filed Critical 广州市雅江光电设备有限公司
Publication of WO2016061868A1 publication Critical patent/WO2016061868A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements

Definitions

  • the utility model relates to a rotating mechanism, in particular to an LED lamp, which realizes a rotating mechanism of a lamp with step focusing and stepless focusing switching.
  • the existing LED lamps generally have a focusing function, and the focusing of the LED lamps is changed by the focusing device to realize the distance between the lens and the light source.
  • the existing LED lamp focusing device is generally an electric stepless focusing, such as a Chinese patent, publication number 203273716, an LED lamp focusing device, including a lens group, an LED light board, a bearing guide rod, a limit plate, Lifting plate, focusing bracket, motor, motor bushing, the upper end of the bearing guide rod is fixedly connected with the lens group, and then passes through the LED light board, the limiting plate and the lifting plate in sequence, and the lower end is connected with the focusing bracket, and the lower end is connected with the focusing bracket.
  • the focusing bracket, the lifting plate and the limiting plate are provided with a circular through hole at a central position, the motor is installed under the focusing bracket, and the rotating shaft on the motor sequentially passes through the focusing bracket, the motor bushing, The circular through hole of the lifting plate and the limiting plate; the above-mentioned focusing device rotates the motor to realize linear motion of the motor sleeve, thereby driving the lifting plate and the lens group to linearly move, and completing the electric stepless focusing.
  • the focusing device can realize the focusing function of the lamp, it can only perform stepless focusing and has a single function; in the actual application of the LED lamp, in some occasions, it is possible to require the lamp to perform level focusing, and such a type of The electric stepless focusing device cannot meet the requirements.
  • the technical problem to be solved by the utility model is to provide a stepped and stepless switching rotating mechanism, which can realize switching between stepped rotation and stepless rotation.
  • the technical solution of the present invention is: a class And a stepless switching rotating mechanism, comprising: a screw rod, a bearing seat, a bearing disposed in the bearing housing, a dial fixed on the bearing housing and an adjusting knob, wherein one end of the screw rod is a thread segment, and the other end
  • the threaded portion of the screw rod is matched with the nut, and the polished rod portion of the screw rod passes through the bearing seat and cooperates with the adjusting knob, and the portion of the polished rod portion that extends into the adjusting knob is provided with a first concave point and a second concave point.
  • a first screw hole is disposed on a side of the adjusting knob corresponding to the first recess and the second recess, and a first bead screw is disposed in the first screw hole, and a head of the first bead screw
  • the first concave point and the second concave point can be embedded;
  • the dial is provided with a plurality of tooth grooves, the tooth groove circumference is evenly distributed, and the adjusting screw has a second screw hole at the corresponding tooth groove, the first A second bead screw is arranged in the two screw holes.
  • Stepped rotation screwing the first bead screw into the first screw hole, and inserting the head of the first bead screw into the first concave point, and the screw is connected to the knob through the first bead screw, at this time,
  • the head of the second bead screw abuts against the tooth groove, rotates the adjustment knob, and each time the adjustment knob is turned, the second bead screw travels a tooth groove, and the adjustment knob drives the screw to rotate, because the screw and the nut cooperate, the wire
  • the rotary motion of the rod is converted into a linear motion of the nut on the screw to achieve stepwise rotation
  • stepless rotation screwing the first bead screw into the first screw hole and embedding the head of the first bead screw into the second The pit is connected to the screw by the first bead screw.
  • the second bead screw head leaves the dial and rotates the adjustment knob. Since the second bead screw is not obstructed, the adjustment knob rotates smoothly.
  • the adjusting knob drives the screw to rotate. Since the screw and the nut cooperate, the rotary motion of the screw is converted into a linear motion of the nut on the screw to realize stepless rotation.
  • the bearing seat is provided with an oil seal, and one side of the bearing seat is provided with a sealing surface cover for pressing the oil seal, and the sealing surface cover is fixedly connected with the bearing seat; the polished rod section of the screw rod is Pass through the bearing, oil seal, and sealing face cover.
  • the end section of the polished rod section is non-circular, and the adjusting knob is provided with a hole groove similar to the cross-sectional shape of the polished rod section.
  • the side of the adjustment knob is provided with anti-slip stripes.
  • the second bead screw When the first bead screw is engaged with the first concave point, the second bead screw is pressed against the tooth groove to realize stepwise rotation; when the first bead screw is engaged with the second concave point, the second bead screw is made Leaving the slot to achieve stepless rotation.
  • Figure 1 is a schematic view of the utility model applied to an LED lamp.
  • Figure 2 is an exploded view of the present invention.
  • an LED lamp focusing device comprises a focusing connecting rod 4 , a focusing plate and a stepped and stepless switching rotating mechanism 1 , and one end of the focusing connecting rod 4 and the lens plate 7 of the LED lamp The other end is connected to the focusing plate 3, and the focusing plate 3 is connected to the lens disk 7 through the focusing link 4 to be integrated.
  • a support plate 5 is disposed between the lens plate 7 and the focusing plate 3, and the support plate 5 is respectively connected to the focusing link 4, and the supporting plate 5 is used for reinforcing the focusing link 4 to enable it to be more Reliable support for the lens disk 7.
  • the focusing link 4 is jacketed with a focusing sleeve 6.
  • the function of the focusing sleeve 6 is to make the focusing link 4 more stable and reduce jitter.
  • the stepped and stepless switching rotating mechanism 1 acts on the focusing plate 3, and the stepwise or stepless focusing of the lens is achieved by performing stepwise or stepless adjustment of the focusing plate 3.
  • the stepped and stepless switching rotating mechanism 1 includes a screw rod 11, a nut 8 matched with the screw rod 11 and fixed on the focusing plate 3, a bearing housing 12, and a shaft.
  • a bearing 19 in the socket 12 an oil seal 18 provided in the bearing housing 12, a sealing face cover 17 for sealing the oil seal 18, a dial 16 fixed to the bearing housing 12, and an adjustment knob 13.
  • the bearing housing 12 is mounted on the fixed plate 2 as a support for the entire rotating mechanism.
  • One end of the screw rod 11 is a threaded section 111, and the other end is a polished rod section 112.
  • the threaded section 111 of the screw rod 11 cooperates with the nut 8 to be converted into a linear motion of the nut 8 by the rotation of the screw rod 11;
  • the light rod segment 112 passes through the bearing 19, the oil seal 18, and the sealing surface cover 17 in turn, and cooperates with the adjusting knob 13 to rotate the screw rod 11 by rotating the adjusting knob 13; in order to prevent slippage between the screw rod 11 and the adjusting knob 13,
  • the end portion of the polished rod segment 112 of the screw rod 11 is non-circular.
  • the adjusting knob 13 is provided with a hole groove similar to the cross-sectional shape of the polished rod portion 112; the side of the adjusting knob 13 is provided with anti-slip stripes, which is convenient Turn the adjustment knob 13 manually.
  • the portion of the polished rod section 112 that extends into the adjustment knob 13 is provided with a first concave point 113 and a second concave point 114, and the first concave point 113 is closer to the threaded section 111; the side of the adjustment knob 13 corresponds to the first concave surface
  • a first screw hole 131 is disposed at the point 113 and the second recess 114.
  • the first screw hole 131 is provided with a first bead screw 14 , and the head of the first bead screw 14 can be embedded in the first concave Point 113 and second pit 114, the distance between the adjustment knob 13 and the thread segment 111 is adjusted by the first bead screw 14, and when the first bead screw 14 is embedded in the first pit 113, the adjustment knob 13 is threaded
  • the segment 111 is close, and when the first bead screw 14 is inserted into the second pit 114, the knob 13 is adjusted to the thread segment 111.
  • the dial 16 is provided with a plurality of slots 161. The slots 161 are evenly distributed around the circumference.
  • a second screw hole 132 is defined in the corresponding slot 161 on the end surface of the adjusting knob 13, and the second screw hole 132 is disposed.
  • a second bead screw 15 is provided.
  • the end of the first bead screw 14 and the second bead screw 15 are provided with a hexagonal groove; the first bead screw 14 and the second bead screw 15 are both through holes. Adjust the depth of its entry into the through hole by rotating the bead screw.
  • Staged focusing screwing the first bead screw 14 into the first screw hole 131 and making the first bead screw
  • the head of the 14 is embedded in the first recess 113, and the screw 11 is coupled to the knob by the first bead screw 14.
  • the head of the second bead screw 15 abuts the slot 161, and the adjustment knob 13 is rotated.
  • the second bead screw 15 travels the stroke of one of the slots 161, and the adjustment knob 13 drives the screw 11 to rotate.
  • Stepless focusing screwing the first bead screw 14 into the first screw hole 131, and inserting the head of the first bead screw 14 into the second concave point 114, the screw 11 passing the first bead screw 14 and the knob Connected together, at this time, the head of the second bead screw 15 leaves the dial 16, and the adjustment knob 13 is rotated. Since the second bead screw 15 is unobstructed, the adjustment knob 13 rotates smoothly, and the adjustment knob 13 drives the screw 11 Rotating, since the screw rod 11 is engaged with the nut 8, the rotary motion of the screw rod 11 is converted into a linear motion of the nut 8 on the screw rod 11. Since the nut 8 is connected with the focusing plate 3, the nut 8 drives the focusing plate 3 and the lens plate. 7 linear motion for stepless focusing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lens Barrels (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

L'invention concerne un mécanisme (1) de changement de rotation pas à pas et continue, comportant une tige (11) à vis, une embase (12) de palier, et un cadran (16) et une molette (13) de réglage fixée sur l'embase (12) de palier; une extrémité de la tige (11) à vis est un tronçon fileté (111), et l'autre extrémité est un tronçon (112) de tige polie; le tronçon fileté (111) de la tige (11) à vis coopère avec un écrou (8); le tronçon (112) de tige polie de la tige (11) à vis traverse l'embase (12) de palier pour coopérer avec la molette (13) de réglage; une partie du tronçon (112) de tige polie s'étendant jusque dans la molette (13) de réglage est munie d'une première cuvette (113) et d'une deuxième cuvette (114); une face latérale de la molette (13) de réglage correspondant à la première cuvette (113) et à la deuxième cuvette (114) est dotée d'un premier trou (131) de vis; une première vis (14) de pression est montée dans le premier trou (131) de vis; une partie de nez de la première vis (14) de pression peut être encastrée dans la première cuvette (113) et la deuxième cuvette (114); le cadran (16) est doté d'une pluralité de crans (161) répartis uniformément sur celui-ci à une périphérie; une position de la molette (13) de réglage correspondant aux crans (161) est dotée d'un deuxième trou (132) de vis; le deuxième trou (132) de vis est équipé intérieurement d'un deuxième vis (15) de pression; lorsque la première vis (14) de pression coopère avec la première cuvette (113), la deuxième vis (15) de pression appuie fortement sur les crans (161) pour réaliser une rotation pas à pas, et lorsque la première vis (14) de pression coopère avec la deuxième cuvette (114), la deuxième vis (15) de pression quitte les crans (161) pour réaliser une rotation continue.
PCT/CN2014/092177 2014-10-21 2014-11-25 Mécanisme de changement de rotation pas à pas et continue WO2016061868A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420609013.4U CN204164949U (zh) 2014-10-21 2014-10-21 一种有级与无级切换旋转机构
CN201420609013.4 2014-10-21

Publications (1)

Publication Number Publication Date
WO2016061868A1 true WO2016061868A1 (fr) 2016-04-28

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PCT/CN2014/092177 WO2016061868A1 (fr) 2014-10-21 2014-11-25 Mécanisme de changement de rotation pas à pas et continue

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CN (1) CN204164949U (fr)
WO (1) WO2016061868A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104296090A (zh) * 2014-10-27 2015-01-21 广州市雅江光电设备有限公司 一种led灯具调焦装置及调焦方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061912A (en) * 1976-10-26 1977-12-06 Berkey-Colortran, Inc. Filament alignment mechanism for follow spot or the like
CN202581144U (zh) * 2012-04-28 2012-12-05 常州市赛尔交通器材有限公司 一种灯具调节机构
CN203671385U (zh) * 2013-12-20 2014-06-25 广州市雅江光电设备有限公司 一种led灯具防水装置
CN104296090A (zh) * 2014-10-27 2015-01-21 广州市雅江光电设备有限公司 一种led灯具调焦装置及调焦方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061912A (en) * 1976-10-26 1977-12-06 Berkey-Colortran, Inc. Filament alignment mechanism for follow spot or the like
CN202581144U (zh) * 2012-04-28 2012-12-05 常州市赛尔交通器材有限公司 一种灯具调节机构
CN203671385U (zh) * 2013-12-20 2014-06-25 广州市雅江光电设备有限公司 一种led灯具防水装置
CN104296090A (zh) * 2014-10-27 2015-01-21 广州市雅江光电设备有限公司 一种led灯具调焦装置及调焦方法

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