Positioning device for liquid crystal display transportation

Abstract

The utility model provides a liquid crystal screen transportation positioning device which comprises a placing plate, two first guide rods are arranged at the top of the placing plate in parallel in the length direction at intervals, two fixing assemblies are symmetrically and movably arranged at the two ends of each first guide rod, and the two fixing assemblies are oppositely and movably arranged in the length direction of the placing plate; the second guide rod is movably arranged on the first guide rod, two positioning blocks are symmetrically and movably arranged at the two ends of the second guide rod, each positioning block comprises two vertical plates arranged in the length direction and the width direction of the containing plate, a right angle formed by the two vertical plates faces the inner side of the containing plate, a fixing plate is movably arranged on the inner sides of the positioning blocks in the height direction, and a push plate is arranged below the containing plate. And universal wheels are arranged below the push plate. According to the scheme, through the arrangement of the first guide rod, the second guide rod, the positioning block and the fixing plate, the clamping and fixing work of liquid crystal screens of different sizes can be adapted, the liquid crystal screens can be more stably clamped in the transferring process, and the device is high in flexibility, easy to operate and high in practicability.

Description

Technical Field

[0001] The present application relates to the technical field of advertising machine production, and in particular to a positioning device for transporting liquid crystal screens. Background Art

[0002] The LCD screen uses liquid crystal material as its basic component. The liquid crystal material is filled between two parallel plates. Voltage is used to change the arrangement of the molecules inside the liquid crystal material to achieve the purpose of shading or transmitting light to display images of varying depths and staggered patterns. Moreover, as long as a filter layer of three primary colors is added between the two plates, a color image can be displayed in real time. In the assembly process of the advertising machine, the most core component is the LCD screen. Due to different application scenarios and different consumer needs, the required LCD screen sizes are significantly different, and most transfer devices are only suitable for a single size and have large limitations. If you want to transport LCD screens of different sizes, you also need corresponding transfer devices of different sizes, which is time-consuming and labor-intensive, and increases costs. Therefore, it is necessary to make improvements. Utility Model Content

[0003] In order to address the deficiencies of the above-mentioned prior art, the present application provides a positioning device for transporting LCD screens, which can adapt to the transfer of LCD screens of different sizes, is simple to operate and highly practical.

[0004] In order to achieve the above purpose, the utility model adopts the following technologies:

[0005] The cam is secured to the upper and lower sides of the platform and is designed to be rotated to move relative to the platform when the cam is in motion. The cam is secured to the upper and lower sides of the platform and is designed to be rotated to move relative to the platform when the cam is in motion.

[0006] The beneficial effect of the utility model is that: through the arrangement of the first guide rod, the second guide rod, the positioning block and the fixing plate, it can adapt to the clamping and fixing work of LCD screens of different lengths, widths and thicknesses, so that they can be clamped more stably during the transfer process. The device is highly flexible, simple to operate and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0008] Figure 1 It is a three-dimensional diagram of the overall structure of an embodiment of the present application.

[0009] Figure 2 It is a top view of the overall structure of an embodiment of the present application.

[0010] Figure 3 It is a side view of the overall structure of an embodiment of the present application.

[0011] Figure 4 It is a schematic diagram of the cooperation relationship between the positioning block and the fixing plate in an embodiment of the present application.

[0012] Figure 5 This is a cross-sectional view of the positioning block and the fixing plate of the embodiment of the present application when they are engaged. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0014] The embodiment of the present application provides a positioning device for transporting a liquid crystal screen, such as Figure 1-Figure 4 As shown, it includes a placement plate 1, on the top of which two first guide rods 11 are parallel and spaced apart along the length direction. Two sets of fixing components are symmetrically movable at both ends of the first guide rod 11. The two sets of fixing components are arranged to move relative to each other along the length direction of the placement plate 1. The fixing components include a second guide rod 12, the axis of the second guide rod 12 is perpendicular to the axis of the first guide rod 11, and the second guide rod 12 is movable on the first guide rod 11. The movement direction of the second guide rod 12 is consistent with the length direction of the placement plate 1. Two positioning blocks 2 are symmetrically movable at both ends of the second guide rod 12. The positioning blocks 2 include two vertical plates arranged along the length and width directions of the placement plate 1, respectively, and the right angle formed by the two vertical plates faces the inside of the placement plate 1. A fixing plate 3 is arranged inside the positioning block 2 to move along the height direction. The positioning block 2 and the fixing plate 3 are used to position and fix the LCD screen. A push plate 6 is provided below the placement plate 1, and a universal wheel 9 is provided below the push plate 6. The push plate 6 and the universal wheel 9 are used to transfer the LCD screen.

[0015] Specifically, such as Figure 1-Figure 3As shown, a third guide rod 13 is positioned above the first guide rod 11, with its axis parallel to the axis of the first guide rod 11. A fourth guide rod 14 is movably positioned above the third guide rod 13, with its axis perpendicular to the axis of the third guide rod 13. The fourth guide rod 14 moves along the length of the placement plate 1. The fourth guide rod 14 is hinged to the fixed plate 3 via a connecting rod 4, which is movably mounted on the fourth guide rod 14. When the fourth guide rod 14 moves inward or outward, the horizontal distance between the fourth guide rod 14 and the second guide rod 12 reaches a preset maximum value, and the vertical distance between the fixed plate 3 and the placement plate 1 also reaches a preset maximum value. When the fourth guide rod 14 moves directly above the second guide rod 12, the vertical distance between the fixed plate 3 and the placement plate 1 reaches a preset minimum value. When the fourth guide rod 14 moves, the fixed plate 3 also moves with it, connected by the connecting rod 4. The fixing plate 3 has two forms of movement: horizontal and vertical. When the fixing plate 3 moves horizontally, the positioning block 2 and the second guide rod 12 will move horizontally together. When the fixing plate 3 moves vertically, the vertical distance between the fixing plate 3 and the placement plate 1 will change, which can not only realize the clamping and loosening of the LCD screen, but also adapt to the clamping of LCD screens of different thicknesses.

[0016] Preferably, Figure 4 and Figure 5 As shown, a first spring 5 is connected between the fixing plate 3 and the positioning block 2. The expansion and contraction direction of the first spring 5 is consistent with the height direction of the positioning block 2. When the first spring 5 is in a natural state, the vertical distance between the fixing plate 3 and the placement plate 1 is a preset maximum value. When the fourth guide rod 14 moves to move the fixing plate 3 upward in the vertical direction, the first spring 5 facilitates the fixing plate 3 to move upward smoothly to the preset highest point, and will not get stuck during this process, thereby avoiding affecting the clamping and loosening of the LCD screen. Moreover, when the LCD screen is fixed and transferred and is subjected to bumps or collisions, the first spring 5 acts as a buffer, that is, the first spring 5 can convert the collision between the fixing plate 3 and the LCD screen into the expansion and contraction of the first spring 5, thereby avoiding damage to the LCD screen.

[0017] Specifically, such as Figure 1-Figure 3 As shown, one of the third guide rods 13 is a screw rod, and the fourth guide rod 14 is slidably matched with the third guide rod 13 through a threaded sleeve. The rotation of the third guide rod 13 is driven by a motor.

[0018] Specifically, such as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the positioning block 2 has a positioning hole 7 on the outside of the placement plate 1 for fixing the positioning block 2. After the LCD screen is positioned, the positioning pins are engaged with the positioning holes 7 to fix the positioning block 2, so that the movement of the fourth guide rod 14 is only converted into vertical movement of the fixing plate 3 under the action of the connecting rod 4.

[0019] Specifically, such as Figure 3 As shown, a plurality of dampers 8 are fixedly connected between the placement plate 1 and the push plate 6. A second spring is sleeved on the dampers 8 and positioned between the placement plate 1 and the push plate 6. The dampers 8 and the second springs work together to provide cushioning, protection, and shock absorption, preventing damage to the LCD screen during the transfer process.

[0020] During use, the two sets of fixing components are located at either end of the first guide rod 11. The LCD screen is first placed on the placement plate 1, and then the motor is started, causing the motor to drive the third guide rod 13 to rotate, thereby causing the fourth guide rod 14 to move inward. Since the vertical distance between the fixed plate 3 and the placement plate 1 is a preset maximum value when the first spring 5 is in its initial state, the movement of the fourth guide rod 14 will cause the fixed plate 3 connected thereto to also move horizontally. Since the fixed plate 3 is connected to the positioning block 2, and the positioning block 2 is connected to the second guide rod 12, the movement of the fourth guide rod 14 along the length of the placement plate 1 will move the positioning block 2 and the second guide rod 12. When the inner sidewalls of the vertical plate parallel to the width of the placement plate 1 of the positioning block 2 are flush with both sides of the length of the LCD screen, the third guide rod 13 stops rotating, at which point the positioning block 2 has completed its positioning of the LCD screen along the length of the placement plate 1.

[0021] Move the positioning block 2 inward along the second guide rod 12 so that the inner side walls of the vertical plates parallel to the length direction of the placement plate 1 are flush with both sides of the width direction of the LCD screen. At this time, the positioning block 2 is positioned on the LCD screen in the width direction of the placement plate 1, and the inner side walls of the two vertical plates of the positioning block 2 are in contact with the LCD screen. During this process, the connecting rod 4 also moves inward along with the positioning block 2 under the connection action of the fixing plate 3, and then the positioning pin and the positioning hole 7 are used to cooperate to fix the positioning block 2.

[0022] The third guide rod 13 is reversed and the fourth guide rod 14 is moved outward. Since the positioning block 2 is fixed and cannot move at this time, the fixing plate 3 can only move in the vertical direction, that is, the fixing plate 3 moves downward. When the fixing plate 3 contacts the upper end surface of the LCD screen, the fourth guide rod 14 stops rotating and the fixing plate 3 cannot move further. The four corners of the LCD screen are fixed. At this time, the positioning and fixation of the LCD screen are achieved. After the fixation is completed, it can be transferred.

[0023] After the transfer is completed, when the LCD screen needs to be removed, the third guide rod 13 is first rotated forward, that is, the third guide rod 13 moves inward, so that the vertical distance between the fixing plate 3 and the placement plate 1 is restored to the preset maximum value, and then the positioning pin is removed to move the positioning block 2 outward to the two ends of the second guide rod 12. The third guide rod 13 is then reversed and moved outward. The movement of the third guide rod 13 will cause the positioning block 2 and the second guide rod 12 to move until the fixing assembly moves to the two ends of the first guide rod 11, and the LCD screen can be removed.

[0024] The above-described structure not only accommodates the positioning and securing of LCD screens of varying lengths, widths, and thicknesses, but also simultaneously achieves the movement of the positioning block 2 and the securing of the LCD screen by the fixing plate 3 through the movement of the fourth guide rod 14, resulting in simple operation and high practicality. Furthermore, with the cushioning provided by the first spring 5 and the damper 8, the transfer device can provide a certain degree of protection for the LCD screen even on bumpy roads or in the event of a collision.

[0025] In application, the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application.

Claims

1. A positioning device for transporting liquid crystal screens, characterized in that: The invention comprises a placement plate (1), the top of which is parallel to and spaced from each other along the length direction with two first guide rods (11), two sets of fixing components are symmetrically moved at both ends of the first guide rod (11), and the two sets of fixing components are relatively moved along the length direction of the placement plate (1), the fixing component comprises a second guide rod (12), the axis of the second guide rod (12) is perpendicular to the axis of the first guide rod (11), the second guide rod (12) is movably arranged on the first guide rod (11), and two positioning blocks (2) are symmetrically moved at both ends of the second guide rod (12), the positioning block (2) comprises two vertical plates respectively arranged along the length direction and the width direction of the placement plate (1), and the right angle formed by the two vertical plates faces the inner side of the placement plate (1), the inner side of the positioning block (2) is movably provided with a fixing plate (3) along the height direction, and the positioning block (2) and the fixing plate (3) are used for positioning and fixing the liquid crystal screen; a push plate (6) is provided below the placement plate (1), and a universal wheel (9) is provided below the push plate (6).

2. A positioning device for transporting a liquid crystal screen according to claim 1, characterized in that: A third guide rod (13) is provided above the first guide rod (11), the axis of the third guide rod (13) is parallel to the axis of the first guide rod (11), a fourth guide rod (14) is movably provided on the third guide rod (13), the axis of the fourth guide rod (14) is perpendicular to the axis of the third guide rod (13), the fourth guide rod (14) moves along the length direction of the placement plate (1), the fourth guide rod (14) is hinged to the fixed plate (3) through a connecting rod (4), and the connecting rod (4) is movably provided on the fourth guide rod (14).

3. The positioning device for transporting a liquid crystal display according to claim 1, characterized in that: A first spring (5) is connected between the fixed plate (3) and the positioning block (2); the extension and contraction direction of the first spring (5) is consistent with the height direction of the positioning block (2); when the first spring (5) is in a natural state, the vertical distance between the fixed plate (3) and the placement plate (1) is a preset maximum value.

4. A positioning device for transporting a liquid crystal screen according to claim 2, characterized in that: One of the third guide rods (13) is a screw rod, and the fourth guide rod (14) is slidably matched with the third guide rod (13) through a threaded sleeve. The rotation of the third guide rod (13) is driven by a motor.

5. The positioning device for transporting a liquid crystal screen according to claim 1, characterized in that: The positioning block (2) is provided with a positioning hole (7) on the outside of the placement plate (1) for fixing the positioning block (2).

6. The positioning device for transporting a liquid crystal screen according to claim 1, characterized in that: A plurality of dampers (8) are fixedly connected between the placement plate (1) and the push plate (6), and a second spring located between the placement plate (1) and the push plate (6) is sleeved on the damper (8).

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