Engineering projection equipment lifting frame

Abstract

An engineering projection equipment lifting frame comprises a frame body and a lifting assembly. The frame body comprises a triangular plate, a plurality of supporting rods are arranged at the lower end of the triangular plate, quadrangular prisms are arranged on the upper end face of the triangular plate in a circumferential array mode, a plurality of containing grooves arranged in the vertical direction are formed in the faces, facing the upper portion of the center of the triangular plate, of the quadrangular prisms, and the containing grooves penetrate out of the other side faces of the quadrangular prisms. The lifting assembly is arranged between the quadrangular prisms and comprises a disc used for containing the engineering projection equipment, three protruding blocks are arranged on the peripheral side of the disc in a circumferential array mode, the height of the protruding blocks is the same as the distance between the inner top wall and the inner bottom wall of the containing groove, and a connecting plate is arranged on one side face of each protruding block. According to the engineering projection equipment lifting frame, engineering projection equipment can be conveniently and stably lifted.

Description

Technical Field

[0001] This utility model relates to the field of lifting devices for projection equipment, and in particular to a lifting frame for engineering projection equipment. Background Technology

[0002] Engineering projection equipment, commonly referred to as projectors, features high brightness and high resolution, and is frequently used in large conference rooms, cinemas, exhibition halls, and similar venues. Typically, engineering projection equipment requires height adjustment during use to ensure accurate projection coverage of the target area.

[0003] In the existing technology, sometimes brackets of different heights are used to raise and lower the engineering projection equipment, but this requires both moving the brackets and frequently moving the engineering projection equipment, which is quite troublesome. Sometimes electric lifting devices are used for raising and lowering, but electric systems are at risk of sudden falls due to circuit failures or misoperation. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides an engineering projection equipment lifting frame that can conveniently and stably raise and lower engineering projection equipment.

[0005] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0006] A lifting frame for engineering projection equipment, comprising:

[0007] The frame includes a triangular plate, with multiple support rods at the lower end of the triangular plate. The upper surface of the triangular plate is provided with a circumferential array of quadrangular prisms. The side of the quadrangular prisms facing the center of the triangular plate has multiple vertically arranged placement slots, and the placement slots extend to the other side of the quadrangular prisms.

[0008] The lifting assembly is located between the four prisms and includes a disc for placing the engineering projection equipment. Three protrusions are arranged in a circular array on the outer periphery of the disc. The height of the protrusions is the same as the distance between the top wall and the bottom wall of the placement slot. A connecting plate is provided on one side of the protrusions.

[0009] Furthermore, triangular grooves are provided vertically on the triangular plate.

[0010] Furthermore, a base plate is provided at the lower end of the support rod.

[0011] Furthermore, each quadrangular prism is positioned at one of the three corners of the upper end face of the triangular plate.

[0012] Furthermore, the disk is made of magnetic material, and the upper surface of the disk is provided with a pair of side limiting plates and a pair of end limiting plates. Both the side limiting plates and the end limiting plates are made of permanent magnets. The area enclosed between the two side limiting plates and the two end limiting plates is used to place engineering projection equipment.

[0013] Furthermore, a handle is provided at one end of the connecting plate.

[0014] The beneficial effects of this technical solution are as follows:

[0015] The lifting frame for engineering projection equipment is placed on the lifting component. When lifting, the lifting component is rotated along the axis of the disc to detach from the frame, and then the engineering projection equipment can be easily lifted and lowered. Then, the protrusion is placed into the placement slot to stably place the lifting component. The operation is simple and there is no electric system, so the lifting component will not fall suddenly. Attached Figure Description

[0016] Figure 1 An overall perspective view of an embodiment of this application is shown.

[0017] Figure 2 A perspective view of the lifting assembly according to an embodiment of this application is shown. Detailed Implementation

[0018] The technical solution of this application will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2 The image shows a lifting frame for an engineering projection device, comprising a frame body 1 and a lifting assembly 2.

[0020] The frame 1 includes a triangular plate 11 with a triangular groove extending through it vertically. Multiple support rods 12 are provided at the lower end of the triangular plate 11, and a base plate 13 is provided at the lower end of the support rods 12. Quadrangular prisms 14 are arranged in a circular array on the upper surface of the triangular plate 11. Specifically, each quadrangular prism 14 is located at one of the three corners of the upper surface of the triangular plate 11. Multiple placement slots 15 arranged vertically are provided on the side of the quadrangular prism 14 facing the center above the center of the triangular plate 11, and the placement slots 15 extend to the other side of the quadrangular prism 14.

[0021] The lifting assembly 2 is located between each quadrangular prism 14 and includes a disc 21 made of magnetic material. The upper surface of the disc 21 is provided with a pair of side limiting plates 22 and a pair of end limiting plates 23. Both the side limiting plates 22 and the end limiting plates 23 are made of permanent magnets. The area enclosed between the two side limiting plates 22 and the two end limiting plates 23 is used to place engineering projection equipment. The outer periphery of the disc 21 is provided with three protrusions 24 arranged in a circular array. The height of the protrusions 24 is the same as the distance between the top wall and the bottom wall of the placement groove 15. One side of the protrusions 24 is provided with a connecting plate 25, and one end of the connecting plate 25 is provided with a handle 26.

[0022] Work style:

[0023] By having three workers each hold the connecting plate 25, or more specifically, the handle 26, rotate the protrusion 24 until it is completely disengaged from the placement slot 15, the lifting assembly 2 can be raised or lowered. Then, the protrusion 24 can be rotated into the placement slot 15 at the predetermined height.

[0024] Different engineering projection devices typically have different lengths and widths. By placing the side limiting plate 22 and the end limiting plate 23 in different positions, engineering projection devices of different sizes can be limited. The setting of the side limiting plate 22 and the end limiting plate 23 makes it less likely that the engineering projection device will fall due to the tilt of the disc 21 when the height of the lifting component 2 is changed.

[0025] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lifting frame for engineering projection equipment, characterized in that, include: The frame (1) includes a triangular plate (11), with multiple support rods (12) at the lower end of the triangular plate (11), and a quadrangular prism (14) arranged in a circular array on the upper surface of the triangular plate (11). Multiple placement slots (15) arranged vertically are opened on the side of the quadrangular prism (14) facing the center above the center of the triangular plate (11), and the placement slots (15) extend to the other side of the quadrangular prism (14). The lifting assembly (2) is located between each quadrangular prism (14) and includes a disc (21) for placing engineering projection equipment. The outer periphery of the disc (21) is provided with three protrusions (24) arranged in a circular array. The height of the protrusions (24) is the same as the distance between the top wall and the bottom wall of the placement groove (15). A connecting plate (25) is provided on one side of the protrusions (24).

2. The lifting frame for engineering projection equipment according to claim 1, characterized in that, The triangle plate (11) has a triangular groove running through it from top to bottom.

3. The lifting frame for engineering projection equipment according to claim 1, characterized in that, The lower end of the support rod (12) is provided with a base plate (13).

4. The lifting frame for engineering projection equipment according to claim 1, characterized in that, Each quadrangular prism (14) is located at one of the three corners of the upper end face of the triangle (11).

5. The lifting frame for engineering projection equipment according to claim 1, characterized in that, The disk (21) is made of magnetic material. The upper surface of the disk (21) is provided with a pair of side limiting plates (22) and a pair of end limiting plates (23). Both the side limiting plates (22) and the end limiting plates (23) are made of permanent magnets. The area enclosed between the two side limiting plates (22) and the two end limiting plates (23) is used to place engineering projection equipment.

6. The lifting frame for engineering projection equipment according to claim 1, characterized in that, A handle (26) is provided at one end of the connecting plate (25).

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