Linear slide rail pulley assembly for shooting

Abstract

The utility model discloses a linear slide rail pulley assembly for shooting, which comprises a pulley and a slide rail, the slide rail is arranged in parallel, and the pulley moves along the slide rail; the pulley comprises a frame, shaft brackets are mounted on the front side and the rear side of the bottom of a trolley plate, upper guide wheels are mounted at the two end corners of each shaft bracket respectively, lower limiting wheels are mounted between the upper guide wheels on the same side through sliding supports, the sliding supports can longitudinally slide along the pulley, and the sliding supports are provided with height adjusting mechanisms so that the limiting wheels can move up and down. When the pulley is installed, the sliding rail can be assembled firstly, then the upper guide wheels of the pulley are clamped into the upper side of the sliding rail, then the sliding support is pushed outwards, the height of the lower limiting wheel is adjusted upwards, and the lower limiting wheel and the upper guide wheels are matched to hold the sliding rail. And compared with a fixed wheel holding design, the wheel holding device can be mounted after the sliding rail is mounted, so that the mounting is more convenient, and the disassembly is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of video and photographic equipment, in particular to a linear slide rail pulley assembly for shooting. Background Art

[0002] In the process of professional filming, in order to facilitate the movement of the camera and ensure the stability of the movement, a slide rail trolley assembly is usually used to fix the camera bracket so that the camera bracket can move horizontally. Since the center of gravity of the camera bracket and the equipment is very high after being installed on the trolley, the trolley has a tendency to overturn, so the trolley generally adopts a wheel-holding design, that is, there are wheels on the upper and lower sides of the slide rail, which hold the slide rail in a triangle to prevent the trolley from overturning. When installing this design, either the slide rail can only be inserted between the wheels before installing the slide rail, or the wheels at the bottom are designed to be disassembled, which requires reinstallation or disassembly every time, and parts are very easy to lose. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a linear slide rail pulley assembly for shooting, so as to solve the technical problem in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A linear slide rail trolley assembly for shooting includes a trolley and a slide rail, the slide rails are arranged in parallel, and the trolley moves along the slide rails; the trolley includes a frame, and shaft frames are installed on the front and rear sides of the bottom of the vehicle plate, and upper guide wheels are installed at both end corners of the shaft frame, and lower limit wheels are installed between the upper guide wheels on the same side through sliding supports, the sliding supports can slide longitudinally along the trolley, and the sliding supports have a height adjustment mechanism so that the limit wheels can move up and down.

[0006] Furthermore, the upper guide wheel and the lower limit wheel on the same side are arranged in an isosceles triangle.

[0007] Furthermore, two longitudinal rectangular slots are symmetrically provided on the frame, and the sliding support slides along the rectangular slots.

[0008] Furthermore, the width of the sliding support is consistent with the rectangular slot, and the sliding support is provided with protruding limit blocks on the upper side and the lower side of the rectangular slot for clamping the rectangular slot for sliding.

[0009] Furthermore, the sliding support has a sliding groove extending toward the outside and through the bottom, a slider is embedded in the sliding groove, a screw hole is vertically opened in the center of the slider, a through hole connected to the sliding groove is vertically opened from the top of the sliding support downward, a screw is inserted from the top of the through hole and screwed into the slider, a knob is fixed at the top of the screw, the outer side of the slider is vertically fixed to the inner side of the top end of the vertical fixing plate, and the outer side of the bottom end of the vertical fixing plate is vertically fixed to the inner side of the rotating shaft of the lower limit wheel.

[0010] Furthermore, a fixing flange is installed at the center of the top surface of the frame.

[0011] Advantages of the utility model:

[0012] When installing the utility model, the slide rail can be assembled first, and then the upper guide wheels of the pulley can be respectively inserted into the upper side of the slide rail, and then the sliding support is pushed outward so that the lower limit wheel is located directly below the slide rail, and then the height of the lower limit wheel is adjusted upward through the height adjustment mechanism, so that the lower limit wheel and the upper guide wheel cooperate to hold the slide rail, so that the photographic support and equipment installed on the pulley will not tip over. Compared with the fixed holding wheel design, it can be installed after the slide rail is installed, which is more convenient to install and more convenient to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the pulley;

[0015] Figure 3 It is a longitudinal section view of the pulley;

[0016] Figure 4 This is a schematic diagram of the installation of the sliding support and the lower limit wheel;

[0017] Figure 5 This is a schematic diagram of the connection between the lower limit wheel and the slider.

[0018] In the figure, 1-slide rail, 2-frame, 21-rectangular slot, 22-fixing flange, 3-axis frame, 31-upper guide wheel, 4-sliding support, 41-limiting block, 42-slide groove, 43-through hole, 5-screw, 6-lower limiting wheel, 61-vertical fixing plate, 62-slider, 621-screw hole. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] As shown in the figure:

[0021] A linear slide rail 1 pulley assembly for shooting includes a pulley and a slide rail 1, the slide rails 1 are arranged in parallel, and the pulley moves along the slide rail 1; the pulley includes a frame 2, and shaft frames 3 are installed on the front and rear sides of the bottom of the vehicle plate, and upper guide wheels 31 are installed at both end corners of the shaft frame 3, and lower limit wheels 6 are installed between the upper guide wheels 31 on the same side through a sliding support 4, the sliding support 4 can slide along the longitudinal direction of the pulley, and the sliding support 4 has a height adjustment mechanism so that the limit wheel 6 can move up and down.

[0022] Working principle: When installing the utility model, the slide rail 1 can be assembled first, and then the upper guide wheel 6 of the pulley can be respectively inserted into the upper side of the slide rail 1, and then the sliding support 4 is pushed outward so that the lower limit wheel 6 is located directly below the slide rail 1, and then the height of the lower limit wheel 6 is adjusted upward through the height adjustment mechanism, so that the lower limit wheel 6 and the upper guide wheel 31 cooperate to hold the slide rail 1, so as to ensure that the photographic bracket and equipment installed on the pulley will not tip over. In order to make the hold more stable, the upper guide wheel 31 and the lower limit wheel 6 on the same side are arranged in an isosceles triangle for the best, and a fixing flange 22 can be installed at the center of the top surface of the frame 2 to facilitate connection with the shooting bracket.

[0023] When disassembling, the height of the limiting wheel 6 is lowered to disengage it from the slide rail 1 , and then the sliding support 4 is pushed inward to separate the pulley from the slide rail 1 .

[0024] In order to facilitate the setting of the height adjustment mechanism, two longitudinal rectangular slots 21 are symmetrically opened on the frame 2, and the sliding support 4 slides along the rectangular slot 21. The width of the sliding support 4 is consistent with the rectangular slot 21, and the sliding support 4 is provided with protruding limit blocks 41 on the upper and lower sides of the rectangular slot 21 to clamp the rectangular slot 21 for sliding.

[0025] The interior of the sliding support 4 has a sliding groove 42 that is opened toward the outside and through the bottom, and a slider 62 is embedded in the sliding groove 42. A screw hole 621 is vertically opened in the center of the slider 62, and a through hole 43 connected to the sliding groove 42 is opened vertically downward from the top of the sliding support 4. The screw 5 is inserted from the top of the through hole 43 and screwed into the slider 62. The top of the screw 5 is fixed with a knob, and the outer side of the slider 62 is vertically fixed to the inner side of the top end of the vertical fixing plate 61, and the outer side of the bottom end of the vertical fixing plate 61 is vertically fixed to the inner side of the rotating shaft of the lower limit wheel 6.

[0026] When the screw rod is rotated, the block cannot rotate due to the restriction of the slide groove 42 , so it can only move up and down along the slide groove 42 , thereby completing the height adjustment of the lower limit wheel 6 .

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A linear slide rail pulley assembly for shooting, characterized in that: It includes a pulley and slide rails, the slide rails are arranged in parallel, and the pulley moves along the slide rails; the pulley includes a frame, and shaft frames are installed on the front and rear sides of the bottom of the vehicle plate, and upper guide wheels are installed at both end corners of the shaft frames, and lower limit wheels are installed between the upper guide wheels on the same side through sliding supports, the sliding supports can slide longitudinally along the pulley, and the sliding supports have a height adjustment mechanism so that the limit wheels can move up and down.

2. The linear slide rail pulley assembly for shooting according to claim 1, characterized in that: The upper guide wheel and the lower limit wheel on the same side are arranged in an isosceles triangle.

3. The linear slide rail pulley assembly for shooting according to claim 1, characterized in that: The frame is symmetrically provided with two longitudinal rectangular notches, and the sliding support slides along the rectangular notches.

4. The linear slide rail pulley assembly for shooting according to claim 3, characterized in that: The width of the sliding support is consistent with the rectangular slot, and the sliding support is provided with limit blocks protruding from the upper side and the lower side of the rectangular slot for clamping the rectangular slot for sliding.

5. The linear slide rail pulley assembly for shooting according to claim 4, characterized in that: The sliding support has a sliding groove extending outward and through the bottom, a slider is embedded in the sliding groove, a screw hole is vertically opened in the center of the slider, a through hole connected to the sliding groove is vertically opened from the top of the sliding support downward, a screw rod is inserted from the top of the through hole and screwed into the slider, a knob is fixed on the top of the screw rod, the outer side of the slider is vertically fixed to the inner side of the top end of the vertical fixing plate, and the outer side of the bottom end of the vertical fixing plate is vertically fixed to the inner side of the rotating shaft of the lower limit wheel.

6. The linear slide rail pulley assembly for shooting according to any one of claims 1 to 5, characterized in that: A fixing flange is installed at the center of the top surface of the frame.

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