Support base of projection curtain

Abstract

The utility model relates to the field of projection curtain supporting pieces, in particular to a support base of a projection curtain, the bottom side of the middle part of an upper supporting plate is provided with an upper buckling groove, the top side of the middle part of a lower supporting plate is provided with a lower buckling groove matched with the upper buckling groove, and the upper supporting plate and the lower supporting plate are buckled together through the upper buckling groove and the lower buckling groove. The bottom face of the upper supporting plate and the bottom face of the lower supporting plate are located on the same plane, a sleeve penetrating through the upper supporting plate is arranged on the portion, located in the upper buckling groove, of the upper supporting plate, a vertical pipe capable of being inserted into the sleeve is arranged on the portion, located in the lower buckling groove, of the lower supporting plate, and a gap is reserved between the vertical pipe and the sleeve. The combined type folding table is reasonable in structure, convenient to combine and disassemble, stable in structure after being combined, high in supporting performance, capable of being stored in an aligned mode after being disassembled, capable of reducing occupied space and convenient to store.

Description

Technical Field

[0001] The utility model relates to the field of projection screen supports, in particular to a bracket base for a projection screen. Background Art

[0002] A projection screen is a tool used in movies, offices, home theaters, large conferences and other occasions to display images and video files. When used outdoors, the projection screen needs to be supported by a bracket.

[0003] The existing projection screen brackets generally adopt an integrated design, so that after the bracket is folded and stored, a large space is still required for placement, which makes the bracket inconvenient to carry. Therefore, the projection screen bracket is often disassembled and stored separately. For example, the whole bracket is disassembled into a screen storage rack, a support rod for supporting the screen storage rack and a support base. However, the consideration of the storage space occupied by the disassembled individuals is often ignored.

[0004] Therefore, it is necessary to develop a bracket base for a projection screen with high support strength and convenient storage. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned technical defects and provide a bracket base for a projection screen.

[0006] A bracket base for a projection screen includes an upper support plate and a lower support plate. A upper buckle groove is provided on the bottom side of the middle part of the upper support plate, and a lower buckle groove matching the upper buckle groove is provided on the top side of the middle part of the lower support plate. The upper support plate and the lower support plate are buckled together through the upper buckle groove and the lower buckle groove. The bottom surface of the upper support plate and the bottom surface of the lower support plate are on the same plane. A sleeve penetrating the upper support plate is provided in the upper support plate within the upper buckle groove, and a vertical pipe that can be inserted into the sleeve is provided in the lower support plate within the lower buckle groove. A gap is left between the vertical pipe and the sleeve.

[0007] Further, a polygonal insertion block is provided around the sleeve in the upper support plate within the upper buckle groove, and a polygonal insertion slot matching the polygonal insertion block is provided in the lower support plate within the lower buckle groove.

[0008] Further, a plurality of insertion buckles are provided in the upper support plate within the upper buckle groove, and a plurality of insertion holes matching the insertion buckles are provided in the lower support plate within the lower buckle groove.

[0009] Further, both the upper support plate and the lower support plate are provided with transverse reinforcing ribs and longitudinal reinforcing ribs.

[0010] Further, a reinforcing rib plate is provided between the part of the sleeve above the upper support plate and the upper support plate.

[0011] Furthermore, the diameter of the top end of the riser pipe is smaller than that of the bottom end, and a V-shaped opening groove is provided at the top end, facilitating the parts of the riser pipe on both sides of the V-shaped opening groove to approach each other when being squeezed.

[0012] Advantages of the present utility model: The structure of the present utility model is reasonable, convenient for combination and disassembly, with a stable structure and strong support after combination. After disassembly, it can be stored in alignment, reducing space occupation and facilitating storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded schematic view of a support base of a projection screen of the present utility model;

[0014] Figure 2 is a three-dimensional schematic view of an upper support plate of a support base of a projection screen of the present utility model;

[0015] Figure 3 is a three-dimensional schematic view of a lower support plate of a support base of a projection screen of the present utility model;

[0016] Figure 4 is a schematic view of the cooperation between a sleeve and a riser pipe of a support base of a projection screen of the present utility model;

[0017] Figure 5 is an implementation schematic view of a support base of a projection screen of the present utility model.

[0018] Figure 6 is a schematic view of the storage after disassembly of a support base of a projection screen of the present utility model.

[0019] As shown in the figure: 1. Upper support plate; 2. Lower support plate; 3. Upper buckle groove; 4. Lower buckle groove; 5. Sleeve; 6. Riser pipe; 7. Polygonal insert block; 8. Polygonal slot; 9. Insert buckle; 10. Insert hole; 11. Transverse reinforcing rib; 12. Longitudinal reinforcing rib; 13. Reinforcing rib plate; 14. V-shaped opening groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0022] In the description of the embodiments of the present utility model, if a feature is referred to as being "arranged", "fixed", "connected", or "installed" on another feature, it can be directly arranged, fixed, connected, or installed on the other feature, or indirectly arranged, fixed, connected, or installed on the other feature.

[0023] In the description of the embodiments of the present utility model, if "several" is involved, its meaning is more than one; if "a plurality" is involved, its meaning is more than two; if "greater than", "less than", or "exceeding" is involved, it should be understood as not including the present number; if "above", "below", or "within" is involved, it should be understood as including the present number. If "first" and "second" are involved, it should be understood as being used to distinguish technical features and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0024] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0025] A bracket base for a projection screen, comprising an upper support plate 1 and a lower support plate 2. A upper buckle groove 3 is provided on the bottom side of the middle part of the upper support plate 1, and a lower buckle groove 4 matching the upper buckle groove 3 is provided on the top side of the middle part of the lower support plate 2. The upper support plate 1 and the lower support plate 2 are buckled together through the upper buckle groove 3 and the lower buckle groove 4. After the upper support plate 1 and the lower support plate 2 are buckled together, the bottom surface of the upper support plate 1 and the bottom surface of the lower support plate 2 are on the same plane. A sleeve 5 penetrating the upper support plate 1 is provided inside the upper buckle groove 3 of the upper support plate 1, and a vertical pipe 6 that can be inserted into the sleeve 5 is provided inside the lower buckle groove 4 of the lower support plate 2. A gap is left between the vertical pipe 6 and the sleeve 5.

[0026] A polygonal insert block 7 is provided around the sleeve 5 inside the upper buckle groove 3 of the upper support plate 1, and a polygonal slot 8 matching the polygonal insert block 7 is provided inside the lower buckle groove 4 of the lower support plate 2. As Figure 1 and Figure 2 shown, both the polygonal insert block 7 and the polygonal slot 8 are quadrilaterals.

[0027] A number of insertion buckles 9 are provided inside the upper buckle groove 3 of the upper support plate 1, and a number of insertion holes 10 matching the insertion buckles 9 are provided inside the lower buckle groove 4 of the lower support plate 2.

[0028] Both the upper support plate 1 and the lower support plate 2 are provided with transverse reinforcing ribs 11 and longitudinal reinforcing ribs 12 to increase the support strength.

[0029] A reinforcing rib plate 13 is provided between the part of the sleeve 5 above the upper support plate 1 and the upper support plate 1 to increase the support strength.

[0030] The diameter of the top end of the riser pipe 6 is smaller than that of the bottom end, and a V-shaped opening groove 14 is provided at the top end, so that the parts of the riser pipe 6 on both sides of the V-shaped opening groove 14 can be close to each other under extrusion, as Figure 4 shown. The riser pipe 6 and its lower support plate 2 are integrally formed by injection molding. A V-shaped opening groove 14 is formed at the top end of the riser pipe 6. The parts on both sides of the V-shaped opening groove 14 are elastic. When a pipe body is inserted between the sleeve 5 and the riser pipe 6, the parts on both sides of the V-shaped opening groove 14 will be extruded. Since the parts on both sides of the V-shaped opening groove 14 are elastic, they can simultaneously have a limiting and extruding effect on the inserted pipe body, improving the connection stability.

[0031] When the present utility model is implemented, the upper support plate 1 and its components, and the lower support plate 2 and its components can be respectively integrally formed by injection molding, and then respectively subjected to finish machining by machining. The integral forming structure has good stability, and the injection molding material is light and convenient to carry. When specifically used, as follows:

[0032] As Figure 5 shown, the upper support plate 1 and the lower support plate 2 are combined and applied in a cross combination, with strong support balance. That is, the upper buckle groove 3 and the lower buckle groove 4 are buckled, the sleeve 5 is sleeved on the riser pipe 6, the polygonal insert block 7 and the polygonal slot 8 are buckled, and the snap buckle 9 and the jack 10 are buckled. The bottom surface of the upper support plate 1 and the bottom surface of the lower support plate 2 are on the same plane. After buckling, the overall structure is stable and can be placed stably on the ground. Then, the pipe fitting for supporting the curtain can be inserted between the sleeve 5 and the riser pipe 6;

[0033] When not in use, as Figure 6 shown, after disassembling the upper support plate 1 and the lower support plate 2, they can be placed side by side for storage. The sleeve 5 can still be sleeved on the riser pipe 6, reducing the space occupation and being convenient for storage.

[0034] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] The above describes the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the creative concept of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A support base for a projection screen, characterized in that: The invention comprises an upper support plate (1) and a lower support plate (2), wherein an upper buckle groove (3) is provided at the bottom side of the middle part of the upper support plate (1), and a lower buckle groove (4) matching the upper buckle groove (3) is provided at the top side of the middle part of the lower support plate (2); the upper support plate (1) and the lower support plate (2) are buckled together through the upper buckle groove (3) and the lower buckle groove (4); the upper support plate (1) is located in the upper buckle groove (3) and is provided with a sleeve (5) penetrating the upper support plate (1); the lower support plate (2) is located in the lower buckle groove (4) and is provided with a vertical pipe (6) capable of being inserted into the sleeve (5); a gap is left between the vertical pipe (6) and the sleeve (5).

2. The support base of a projection screen according to claim 1, characterized in that: The upper support plate (1) is located in the upper buckle groove (3) and is provided with a polygonal insert block (7) surrounding the sleeve (5); the lower support plate (2) is located in the lower buckle groove (4) and is provided with a polygonal slot (8) matching with the polygonal insert block (7).

3. The support base of a projection screen according to claim 1, characterized in that: The upper support plate (1) is located in the upper buckle groove (3) and is provided with a plurality of buckles (9), and the lower support plate (2) is located in the lower buckle groove (4) and is provided with a plurality of insertion holes (10) that cooperate with the buckles (9).

4. The support base of a projection screen according to claim 1, characterized in that: The upper support plate (1) and the lower support plate (2) are both provided with transverse reinforcing ribs (11) and longitudinal reinforcing ribs (12).

5. The support base of a projection screen according to claim 1, characterized in that: The portion of the sleeve (5) located above the upper support plate (1) and the upper support plate (1) are provided with a reinforcing rib plate (13).

6. The support base of a projection screen according to claim 1, characterized in that: The top diameter of the vertical pipe (6) is smaller than the bottom diameter, and a V-shaped opening groove (14) is provided at the top to facilitate the parts of the vertical pipe (6) located on both sides of the V-shaped opening groove (14) to be squeezed close to each other.

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