CN112797295A

CN112797295A - Camera slide rail structure

Info

Publication number: CN112797295A
Application number: CN202110138866.9A
Authority: CN
Inventors: 王泽杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-05-14

Abstract

The invention relates to the field of camera auxiliary equipment, and aims to provide a camera slide rail structure which has the advantages of simple structure, low cost, strong stability, convenience in use and the like. The technical scheme is as follows: a camera slide rail structure comprises a slide rail and a pulley, wherein the pulley is provided with a rotating part, and the slide rail is provided with a driving mechanism for driving the pulley to move and/or the rotating part to rotate; the driving mechanism comprises two sets of wheel sets arranged on the sliding rail and a synchronous belt, and each set of wheel set comprises a driving wheel and a driven wheel; two guide wheels are arranged on the pulley, and one of the guide wheels is connected with the rotating part; one guide wheel is positioned between the driving wheel and the driven wheel in one group of wheel sets, and the other guide wheel is positioned between the driving wheel and the driven wheel in the other group of wheel sets; the synchronous belt sequentially passes through a driving wheel of the first group of wheel sets, the first guide wheel, a driven wheel of the first group of wheel sets, a driving wheel of the second group of wheel sets, the second guide wheel and a driven wheel of the second group.

Description

Camera slide rail structure

Technical Field

The invention relates to the field of camera auxiliary equipment, in particular to a camera slide rail structure.

Background

The camera slide rail is an auxiliary device for moving or rotating a camera in shooting, and mainly comprises a slide rail, a pulley and a motor control system (the motor control system is composed of a motor and a control system thereof, hereinafter referred to as an electric control system). The realization mode is very simple, and a set of rotary electric control system is arranged on a pulley of the camera slide rail, so that the multi-degree-of-freedom control is realized.

This approach has its own disadvantages: firstly, the weight of the pulley is increased, so that the energy consumption is increased, the effective load is reduced, and meanwhile, the acceleration and the reaction speed of the pulley are reduced, and the performance is deteriorated;

secondly, the rotary electric control system arranged on the pulley can increase the height between the camera and the track, the moment arm is lengthened, the camera is very unstable during acceleration and deceleration, and obvious jitter is easy to generate, which is fatal to shooting; thirdly, the rotary electric control system needs power supply and communication and is generally solved through a cable connection host or through an independent battery and wireless communication, the cable can make the use of products more complicated, the weight of the pulley is increased by using the independent battery, and the system is poor in stability and has the problems of slowness and disconnection due to the adoption of the wireless communication mode for linkage, so that the use efficiency is influenced; fourthly, the heavy pulley is driven, a larger motor and a larger power driving circuit are needed, and the mechanical structure is enhanced, so that the manufacturing cost is greatly increased.

Disclosure of Invention

The invention aims to provide a camera slide rail structure which has the advantages of simple structure, low cost, strong stability, convenience in use and the like.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a camera slide rail structure comprises a slide rail, wherein a pulley is connected to the slide rail in a sliding manner, a rotating part for mounting a camera is connected to the pulley in a rotating manner, and a driving mechanism for driving the pulley to move and/or the rotating part to rotate is arranged on the rail;

the driving mechanism comprises two sets of wheel sets arranged on the slide rail, and each set of wheel set comprises a driving wheel and a driven wheel; the pulley is provided with two guide wheels, wherein one guide wheel is connected with the rotating part; one guide wheel is positioned between the driving wheel and the driven wheel in one group of wheel sets, and the other guide wheel is positioned between the driving wheel and the driven wheel in the other group of wheel sets;

the driving mechanism further comprises an annular synchronous belt, and the synchronous belt sequentially passes through a driving wheel of the first group of wheel sets, the first guide wheel, a driven wheel of the first group of wheel sets, a driving wheel of the second group of wheel sets, the second guide wheel and a driven wheel of the second group of wheel sets.

Preferably, the coaster includes first plate body and second plate body, link to each other through many support columns between first plate body and the second plate body, two the upper surface at the second plate body is all installed to the leading wheel, the lower surface of second plate body is equipped with four pulleys, the pulley all supports and leans on the slide rail.

Preferably, the slide rail comprises a rail, both sides of the rail are provided with a limiting groove, the pulley abuts against the limiting groove, and both ends of the rail are provided with mounting platforms; the driving wheel and the driven wheel are both arranged on the mounting table.

Preferably, the guide wheel connected to the rotary member has an outer diameter greater than that of the other guide wheel, and a plurality of spacing wheels for defining a distance between the timing belts passing through the guide wheel are provided at one side of the guide wheel having the larger outer diameter.

Preferably, the driving wheels are connected with motors, and the motors are installed on the installation table.

Preferably, the synchronous belt is a toothed belt.

Preferably, be equipped with the adjusting part who is used for adjusting the hold-in range elasticity on one of them mount table, the adjusting part is including setting up the bar hole on the mount table, wear to be equipped with T shape pole in the bar hole, the top and one of them follow driving wheel of T shape pole link to each other, the border department of mount table is connected with the limiting plate, wear to be equipped with the slipknot screw rod on the limiting plate, the one end and the T shape pole of slipknot screw rod link to each other, are located and are equipped with the nut on the slipknot screw rod in the limiting plate outside.

The beneficial effects of the invention are concentrated and expressed as follows:

1. the performance is improved: compared with the prior art, an electric control system does not need to be installed on the pulley, the weight of the pulley is reduced, the height of the pulley is reduced, camera shake can be reduced, energy consumption of a camera slide rail is reduced, and effective load is increased. Because two motors are no longer independent, the two motors can jointly exert force to drive the movement of the pulley, and the performance of the pulley can be obviously improved.

2. The cost is reduced: because coaster weight reduces, the motor of simultaneous intercoupling has promoted the motion performance of coaster, and the camera slide rail can change into the electrical system of less power, compares prior art in addition, and the electrical system cable can alternate through the dark line, needn't increase flexible cable or battery, more need not to adopt wireless communication, can obviously reduce the cost of product, increases the price/performance ratio.

3. The use is convenient: because two motors all install on the track to a whole delivers for the user, the user can be taken at any time and use, takes out and can accomplish the shooting task, compares in the design of piecing together of current product and inserts, and it is more convenient to use, and is more high-efficient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a first arrangement of the spacing wheels of the present invention;

FIG. 3 is a second arrangement of the spacing wheels of the present invention;

illustration of the drawings: 1. a drive wheel; 2. a driven wheel; 3. a guide wheel; 4. a rotating member; 5. a synchronous belt; 6. a first plate body; 7. a second plate body; 8. a support pillar; 9. a pulley; 10. a track; 11. a limiting groove; 12. an installation table; 13. a limiting wheel; 14. a motor; 15. a strip-shaped hole; 16. a T-shaped rod; 17. a limiting plate; 18. a slipknot screw.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a camera slide rail structure includes a slide rail, the slide rail has two parts, that is, the slide rail includes a rail 10 and mounting platforms 12 arranged at two ends of the rail 10, and both sides of the rail 10 are provided with limiting grooves 11; sliding connection has the coaster on the slide rail, the coaster includes first plate body 6 and second plate body 7, link to each other through many support columns 8 between first plate body 6 and the second plate body 7, preferentially adopt 4 support columns 8 in this embodiment, adopt the bolt to link to each other, two between support column 8 and first plate body 6, the second plate body 7 the upper surface at second plate body 7 is all installed to leading wheel 3, the lower surface of second plate body 7 is equipped with four pulleys 9, pulley 9 all supports and leans on the slide rail, it is connected with the rotating member 4 that is used for installing the camera to rotate on the coaster, and rotating member 4 can be a rotation axis, and rotating member 4 wears to establish on the first board, be equipped with on the track 10 and be used for driving the coaster to remove and/or rotating member 4 pivoted actuating mechanism.

The driving mechanism comprises two groups of wheel sets arranged on the sliding rail, wherein one group of wheel sets is arranged on the mounting table 12 at one end of the rail 10, the other group of wheel sets is arranged on the mounting table 12 at the other end of the rail 10, and each group of wheel sets comprises a driving wheel 1 and a driven wheel 2; the pulley is provided with two guide wheels 3, the two guide wheels 3 are both arranged on the second plate body 7, and one guide wheel 3 is connected with the rotating part 4; one guide wheel 3 is positioned between the driving wheel 1 and the driven wheel 2 in one group of wheel sets, and the other guide wheel 3 is positioned between the driving wheel 1 and the driven wheel 2 in the other group of wheel sets;

the driving mechanism further comprises an annular synchronous belt 5, the synchronous belt 5 sequentially passes through the driving wheel 1 of the first group of wheels, the first guide wheel 3, the driven wheel 2 of the first group of wheels, the driving wheel 1 of the second group of wheels, the second guide wheel 3 and the driven wheel 2 of the second group of wheels, namely, the driving wheel 1 of the two groups of wheels and the driven wheel 2 form a quadrilateral structure, the synchronous belt 5 between the driving wheel 1 of the first group and the driven wheel 2 is wound on one guide wheel 3, the synchronous belt 5 between the driving wheel 1 of the second group and the driven wheel 2 is wound on the other guide wheel 3, and the driving wheel 1 is positioned on the diagonal line of the quadrilateral.

Further, the driving wheels 1 are connected with motors 14, the motors 14 are installed on the installation table 12, external teeth are arranged on the driving wheels 1 and the guide wheels 3 connected with the rotating pieces 4, and the synchronous belts 5 are toothed belts.

When the pulley is used, as shown in fig. 2, when the two driving wheels 1 rotate in the same direction and at the same speed, the synchronous belt 5 moves, the rotating directions of the synchronous belt 5 on the left guide wheel 3 and the synchronous belt 5 on the right guide wheel 3 are opposite, the same pulling force is generated on the two sides of the pulley at the moment, and the pulley is static; in the process of rotating the synchronous belt 5, the guide wheel 3 is driven to rotate, so that the rotating shaft is driven to rotate, and when the camera is arranged on the rotating piece 4 shaft; namely, the camera rotates, and the pulley does not move.

When the two driving wheels 1 rotate at the same speed and in opposite directions, namely one driving wheel rotates clockwise and the other driving wheel rotates anticlockwise, two partial belt bodies of the synchronous belt 5 on the guide wheel 3 on the left side or the right side generate a pulling force which is left or right on the guide wheel 3 at the same time, and the pulley can be driven to move left and right on the sliding rail at the moment; i.e. it is achieved that the carriage slides on the rail 10 without the camera itself rotating.

When the two driving wheels 1 rotate at different speeds and in opposite directions, the two motion states of the carriage are superimposed, that is, the carriage slides on the track 10, and the camera rotates.

Further, in this embodiment, there are two kinds of situations in the diameter of two leading wheels 3, namely the external diameter of two leading wheels 3 is the same, one leading wheel 3 external diameter is little, another leading wheel 3 external diameter is big, big leading wheel 3 links to each other with rotating member 4, adopts the great leading wheel 3 of external diameter, plays the rotatory speed reduction effect to the camera, can reduce the degree of difficulty of camera rotation control to and increase the precision of camera rotation control.

In the case where the outer diameters of the two guide wheels 3 are the same, neither the position nor the size of the outer diameter of the guide wheels 3 is limited.

In the case where the two guide wheels 3 have different outer diameters, since there is a process of moving the carriage left and right on the slide rail, in order to prevent the timing belt 5 from being loosened or tightened by the movement of the carriage, it is necessary to keep the amount of the step belt to be taken in and out on the left guide wheel 3 consistent with the amount of the step belt to be taken in and out on the right guide wheel 3, and therefore, a plurality of stopper wheels 13 for limiting the distance between the timing belts 5 passing through the guide wheels 3 are provided on the side of the guide wheel 3 having a larger outer diameter.

In the embodiment, two setting types exist according to the number of the limiting wheels 13, when two limiting wheels 13 are arranged, as shown in fig. 2, the two limiting wheels 13 are both arranged on the right side of the large guide wheel 3, the two limiting wheels 13 press the synchronous belt 5 inwards, so that the retraction amount of the synchronous belt 5 on two sides of the pulley is consistent, and the synchronous belt 5 is a double-sided toothed belt in the arrangement structure; in the structure, the size of the guide wheel 3 is not limited to the size of the driving wheel 1 and the driven wheel 2, that is, the two sections of the synchronous belts 5 on the guide wheels 3 on the left side and the right side can be in a parallel structure or a splayed structure.

Three limiting wheels 13 can be arranged, as shown in fig. 3, two limiting wheels 13 are arranged on the second plate body 7, the third limiting wheel 13 is arranged on the mounting table 12, the size of the limiting wheels 13 or the distance between the driving wheel 1 and the driven wheel 2 needs to be limited at this time, that is, two sections of synchronous belts 5 on the guide wheels 3 on the left side and the right side need to be guaranteed to be in a parallel structure; first spacing wheel 13 and second spacing wheel 13 are located the left and right sides of big leading wheel 3, and the both ends hold-in range 5 on first spacing wheel 13 and the second spacing wheel 13 right side keeps the parallel state, and big leading wheel 3 compresses tightly on the hold-in range 5 of first spacing wheel 13 and the second spacing wheel 13, and this arrangement's hold-in range 5 is the single face cingulum to this structure is convenient for change the leading wheel 3 of equidimension not, and the practicality is strong.

When the leading wheel 3 of equidimension not is being changed to needs, the regulation of elasticity need be carried out to hold-in range 5, is equipped with the adjusting part who is used for adjusting 5 elasticity of hold-in range consequently on one of them mount table 12, adjusting part is including setting up the bar hole 15 on mount table 12, wear to be equipped with T shape pole 16 in the bar hole 15, the top and one of them follow driving wheel 2 of T shape pole 16 link to each other, the border department of mount table 12 is connected with limiting plate 17, wear to be equipped with slipknot screw rod 18 on the limiting plate 17, the one end of slipknot screw rod 18 links to each other with T shape pole 16, is located and is equipped with the nut on the slipknot screw rod 18 in the limiting plate 17 outside, through swivel nut, drives left from driving wheel 2 left or right removal, and then realizes tight or the pine regulation.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.

Claims

1. A camera slide rail structure comprises a slide rail, wherein a pulley is connected to the slide rail in a sliding manner, and a rotating part (4) for mounting a camera is connected to the pulley in a rotating manner; the method is characterized in that: the slide rail is provided with a driving mechanism for driving the pulley to move and/or the rotating piece (4) to rotate;

the driving mechanism comprises two sets of wheel sets arranged on the slide rail, and each set of wheel set comprises a driving wheel (1) and a driven wheel (2); the pulley is provided with two guide wheels (3), wherein one guide wheel (3) is connected with the rotating part (4); one guide wheel (3) is positioned between the driving wheel (1) and the driven wheel (2) in one group of wheel sets, and the other guide wheel (3) is positioned between the driving wheel (1) and the driven wheel (2) in the other group of wheel sets;

actuating mechanism is still including being annular hold-in range (5), hold-in range (5) are in proper order through drive wheel (1) of first group wheelset, first leading wheel (3), the driven wheel (2) of first group wheelset, the drive wheel (1) of second group wheelset, second leading wheel (3), the driven wheel (2) of second group.

2. The camera slide rail structure according to claim 1, wherein: the coaster includes first plate body (6) and second plate body (7), link to each other through many support columns (8), two between first plate body (6) and the second plate body (7) leading wheel (3) are all installed at the upper surface of second plate body (7), the lower surface of second plate body (7) is equipped with four pulley (9), pulley (9) all support and lean on the slide rail.

3. The camera slide rail structure according to claim 2, wherein: the slide rail includes track (10), the both sides of track (10) all are equipped with spacing groove (11), pulley (9) are supported and are leaned on in spacing groove (11), the both ends of track (10) are equipped with mount table (12), drive wheel (1) and all install on mount table (12) from driving wheel (2).

4. The camera slide rail structure according to claim 3, wherein: the outer diameter of the guide wheel (3) connected with the rotating piece (4) is larger than that of the other guide wheel (3), and one side of the guide wheel (3) with the larger outer diameter is provided with a plurality of limiting wheels (13) used for limiting the distance between the synchronous belts (5) passing through the guide wheel (3).

5. The camera slide rail structure according to claim 3, wherein: the driving wheels (1) are connected with motors (14), and the motors (14) are installed on the installation platform (12).

6. The camera slide rail structure according to claim 3, wherein: the synchronous belt (5) is a toothed belt.

7. The camera slide rail structure according to claim 3, wherein: be equipped with the adjusting part who is used for adjusting hold-in range (5) elasticity on one of them mount table (12), adjusting part is including setting up strip hole (15) on mount table (12), wear to be equipped with T shape pole (16) in strip hole (15), the top and one of them follow driving wheel (2) of T shape pole (16) link to each other, the border department of mount table (12) is connected with limiting plate (17), wear to be equipped with slipknot screw rod (18) on limiting plate (17), the one end and the T shape pole (16) of slipknot screw rod (18) link to each other, are located and are equipped with the nut on slipknot screw rod (18) in limiting plate (17) outside.