Prism camera electric platform

Abstract

The utility model discloses an electric platform for a prism camera, which relates to the technical field of electric platforms for prism cameras and comprises two mounting seats, a screw rod arranged between the two mounting seats, an equipment seat sleeved outside a toothed bar group and a bearing rod group, a mounting cavity arranged at the bottom of the equipment seat, and a movable seat in threaded fit with one side, close to the mounting cavity, of the screw rod. A trapezoidal block is arranged at the top of the movable seat, a reed is arranged on the inner wall of the movable seat, the lead screw drives the trapezoidal block to drive the movable seat to move, the trapezoidal block does not directly drive the movable seat to displace at the moment of starting to move, the reed is firstly contacted, and at the moment, the trapezoidal block suddenly starts to move, so that a sudden thrust is generated; when the trapezoidal block moves to the required position, the reed absorbs thrust, when the trapezoidal block moves to the required position, the movable seat is not completely aligned with the position of the movable seat, the reed loses thrust for relaxation, the movable seat is reversely pushed to gradually move to the required position in the relaxation process, and shaking of a camera at the top of the movable seat during sudden stop and start is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electric platform technology for prism cameras, and more particularly to an electric platform for prism cameras. Background Technology

[0002] Prism cameras are widely used in various experiments, tests, and to meet special shooting needs. To meet the various requirements during use, an electric platform is usually used to move the camera body horizontally or vertically.

[0003] To meet the needs of camera use, existing electric platforms typically use high-precision motors to ensure smooth movement of the camera. However, regardless of the motor's precision parameters, the camera experiences a sudden acceleration upon startup, which can cause camera shake and affect the actual performance. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide an electric platform for a prism camera, which solves the problem of camera shaking during the initial movement of the electric platform when it moves the camera.

[0005] The technical solution of this utility model is as follows: a prism camera electric platform, including two opposing mounting seats, a rack and a support rod assembly that are parallel to each other between the mounting seats, a lead screw connected to a power source between the two mounting seats, an equipment seat sleeved on the outside of the rack and the support rod assembly, a mounting cavity opened at the bottom of the equipment seat, a limiting rod parallel to the lead screw is provided inside the mounting cavity, a movable seat that is slidably connected to the limiting rod is threaded on the side of the lead screw near the mounting cavity, a trapezoidal block extending into the mounting cavity is provided on the top of the movable seat, and a spring is provided on the inner wall of the movable seat.

[0006] Furthermore, the surface of the equipment base is provided with several through holes, wherein the inner wall of the through hole for passing through the rack assembly is provided with a ball bearing adapted to the tooth groove of the rack assembly, and the diameter of the through hole for passing through the support rod assembly is larger than that of the support rod assembly and is provided with a flexible rubber ring for interference sliding connection with the support rod assembly, so as to ensure smooth movement of the equipment base and reduce the sliding resistance between the rack assembly and the support rod assembly.

[0007] Furthermore, the mounting cavity has an upward-facing triangular protrusion at the top of its inner wall, and spring sheets are symmetrically arranged on the two opposite sidewall surfaces of the protrusion in the mounting cavity.

[0008] Furthermore, the reed is always in a relaxed state to ensure that it is always pushing the trapezoidal block when it comes into contact with it.

[0009] Furthermore, one end of the reed is connected to the side wall of the trapezoidal block, so that the trapezoidal block is always constrained by the reed.

[0010] Furthermore, the end of the spring is inclined and adapted to the inclination angle of the side wall of the trapezoidal block, and a gap is left between the spring and the trapezoidal block so that the trapezoidal block only contacts the spring during movement.

[0011] Furthermore, the length of the mounting cavity is greater than the length of the trapezoidal block.

[0012] Furthermore, the width of the mounting cavity is adapted to the width of the trapezoidal block to ensure that the trapezoidal block will not wobble during movement, thereby improving the accuracy of the movement.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a lead screw connected to a power source to drive a trapezoidal block, which in turn moves the movable seat. A spring is placed between the trapezoidal block and the movable seat. When the trapezoidal block begins to move, it does not directly cause the movable seat to shift. Instead, it first contacts the spring. Because the trapezoidal block starts to move suddenly, it generates a relatively sudden thrust. The spring absorbs the thrust until it transmits the thrust to the movable seat, at which point the movable seat moves. When the trapezoidal block reaches the desired position, the movable seat is not completely aligned with it. At this point, the spring loses its thrust and expands, pushing the movable seat back to the desired position during the expansion process. This allows the movable seat to move slowly at the beginning and end of its movement, avoiding sudden stops and shaking of the camera on top of the movable seat during startup. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the movable seat of this utility model;

[0017] Figure 3 This is a cross-sectional view of the mounting cavity structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the engagement state of the spring and trapezoidal block of this utility model.

[0019] Figure 5 This is a schematic diagram of the engagement state of the spring and trapezoidal block of this utility model.

[0020] Reference numerals: 1. Mounting base; 2. Toothed rod assembly; 3. Support rod assembly; 4. Lead screw; 5. Equipment base; 6. Mounting cavity; 7. Moving base; 8. Trapezoidal block; 9. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, such as Figure 1-4 As shown, an electric platform for a prism camera includes two opposing mounting bases 1, with a rack assembly 2 and a support rod assembly 3 arranged between the mounting bases 1. The platform is characterized by: a lead screw 4 connected to a power source being arranged between the two mounting bases 1; an equipment seat 5 being sleeved on the outer side of the rack assembly 2 and the support rod assembly 3; and several through holes being formed on the surface of the equipment seat 5. The inner wall of the through holes for passing through the rack assembly 2 is provided with balls adapted to the tooth grooves of the rack assembly 2. The diameter of the through holes for passing through the support rod assembly 3 is larger than that of the support rod assembly 3, and a flexible rubber ring is provided, allowing for interference sliding connection between the through holes and the support rod assembly 3.

[0023] The bottom of the equipment base 5 has an installation cavity 6. Inside the installation cavity 6, there is a limiting rod parallel to the lead screw 4. The side of the lead screw 4 closest to the installation cavity 6 is threaded with a movable seat 7 that is slidably connected to the limiting rod. The top of the movable seat 7 is provided with a trapezoidal block 8 that extends into the installation cavity 6. The length of the installation cavity 6 is greater than the length of the trapezoidal block 8, and the width of the installation cavity 6 is adapted to the width of the trapezoidal block 8. The inner wall of the movable seat 7 is provided with a spring 9. The installation cavity 6 has an upward triangular protrusion at the top of its inner wall. The spring 9 is symmetrically arranged on the two opposite side wall surfaces of the protrusion of the installation cavity 6. The spring 9 is always in a relaxed state, and one end of the spring 9 is connected to the side wall of the trapezoidal block 8.

[0024] The working principle of this utility model is as follows: First, when using the device, the camera is installed on the top of the device base 5. At this time, the operator can start the power source to drive the lead screw 4 to rotate. Different rotation directions of the lead screw 4 can drive the moving base 7 to move. During the movement of the moving base 7, the trapezoidal block 8 moves along with it. When the trapezoidal block 8 moves in the mounting cavity 6, it first pushes the spring 9. When one side of the spring 9 is pushed, it is compressed and the other side is relaxed. When the spring 9 is under force, it transmits the force to the device base 5 and drives the device base 5 to move. At the same time, the thrust generated by the suddenly moving trapezoidal block 8 is buffered by the spring 9, so that the device base 5 starts to move slowly after a delay, without affecting the camera on the top.

[0025] When the device reaches the desired position, the lead screw 4 stops rotating, and the moving seat 7 and trapezoidal block 8 stop moving simultaneously. After the trapezoidal block 8 suddenly stops moving, the springs 9 on both sides generate pushing and pulling forces respectively within the device base 5, causing the device base 5 to passively move and center with the trapezoidal block 8, thereby ensuring that the device base 5 moves to the desired position. During this process, even if the trapezoidal block 8 suddenly stops moving, the springs 9 will still drive the device base 5 to slowly return to the centered state during the expansion and contraction process, and will not suddenly stop, causing the camera on top of the device base 5 to be affected.

[0026] Example 2, as Figure 1 , 2 As shown in Figures 3 and 5, the only difference from Embodiment 1 is that the end of the spring 9 is inclined and matches the inclination angle of the side wall of the trapezoidal block 8. There is a gap between the spring 9 and the trapezoidal block 8. When the trapezoidal block 8 moves, it only contacts the spring 9 on one side of the moving direction and pushes the spring 9 to deform. Thus, when the trapezoidal block 8 stops moving, only one side of the spring 9 pushes the equipment base 5 to be centered and positioned, which slows down the speed of the equipment base 5 when it stops during the movement, thereby making it easier for the operator to judge the position.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prism camera electric platform, comprising two opposite setting mounting seats (1), between which tooth rod groups (2) and supporting rod groups (3) are arranged parallel to each other, characterized in that: A lead screw (4) connected to a power source is provided between the two mounting seats (1). A device seat (5) is sleeved on the outside of the gear group (2) and the support rod group (3). A mounting cavity (6) is opened at the bottom of the device seat (5). A limiting rod parallel to the lead screw (4) is provided inside the mounting cavity (6). A movable seat (7) that is slidably connected to the limiting rod is threaded on the side of the lead screw (4) near the mounting cavity (6). A trapezoidal block (8) extending into the mounting cavity (6) is provided on the top of the movable seat (7). A spring plate (9) is provided on the inner wall of the movable seat (7).

2. A motorized platform for a prism camera according to claim 1, characterized in that: The surface of the equipment base (5) is provided with several through holes. The inner wall of the through hole for passing through the toothed rod assembly (2) is provided with a ball that matches the tooth groove of the toothed rod assembly (2). The diameter of the through hole for passing through the support rod assembly (3) is larger than that of the support rod assembly (3) and is provided with a flexible rubber ring that is interference-slidably connected to the support rod assembly (3).

3. The motorized platform for prism camera according to claim 1, wherein: The mounting cavity (6) has an upward-facing triangular protrusion at the top of its inner wall, and the springs (9) are symmetrically arranged on the two opposite sidewall surfaces of the protrusion in the mounting cavity (6).

4. The motorized platform for prism camera according to claim 1, wherein: The reed (9) is always in a relaxed state.

5. A motorized platform for a prism camera according to claim 3, wherein: The end of the reed (9) is connected to the side wall of the trapezoidal block (8).

6. A motorized platform for a prism camera according to claim 3, characterized in that: The end of the reed (9) is inclined and adapted to the inclination angle of the side wall of the trapezoidal block (8), and a gap is left between the reed (9) and the trapezoidal block (8).

7. A motorized platform for a prism camera according to claim 1, characterized in that: The length of the mounting cavity (6) is greater than the length of the trapezoidal block (8).

8. A motorized platform for a prism camera according to claim 1, characterized in that: The width of the mounting cavity (6) is adapted to the width of the trapezoidal block (8).

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