Simple lifting support convenient to move for projection

Abstract

The simple lifting support convenient to move for projection comprises a bottom plate and a lifting plate which are oppositely arranged, symmetrical lower moving side plates are arranged on the two sides of the bottom plate, symmetrical upper moving side plates are arranged on the lifting plate, and moving holes are formed in the lower moving side plates and the upper moving side plates; comprising two upper cross assemblies, each upper cross assembly comprises two upper connecting pieces which are arranged in a crossed mode, one upper connecting piece is fixedly connected with the upper moving side plate through a pin shaft, and the other upper connecting piece is arranged in the moving hole through a pin shaft; comprising two lower cross assemblies, each lower cross assembly comprises two lower connecting pieces which are arranged in a cross mode, one lower connecting piece is fixedly connected with a lower moving side plate through a pin shaft, and the other lower connecting piece is arranged in a moving hole through a pin shaft. The portable folding chair is simple in structure, convenient to fold and carry, convenient and fast to operate and suitable for being used in most small scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of projection brackets, in particular to a simple lifting bracket for projection which is easy to move. Background Art

[0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals.

[0003] Projectors are now widely used in homes, offices, schools and entertainment venues. They are generally installed directly on the ceiling for use. However, for some remote schools or early offices, projection equipment is not popular and difficult to install. Even if they have a projector, they cannot adjust the height and cannot be used. Therefore, a bracket is urgently needed to solve these problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a simple lifting bracket for projection that is easy to move and has a simple structure, is easy to fold and carry, and is easy to operate, so that it is suitable for use in most small scenes.

[0005] In order to solve the above technical problems, the utility model provides a simple lifting bracket that is easy to move for projection, including a bottom plate and a lifting plate that are relatively arranged, symmetrical lower movable side plates are arranged on both sides of the bottom plate, and symmetrical upper movable side plates are arranged on the lifting plate, and movable holes are arranged on the lower movable side plates and the upper movable side plates; including two upper cross components, the upper cross component includes two cross-arranged upper connecting plates, one of which is fixedly connected to the upper movable side plate by a pin shaft, and the other of the upper connecting plates is arranged in the movable hole by a pin shaft; including two lower cross components, the lower cross component includes two cross-arranged lower connecting plates, one of which is fixedly connected to the lower movable side plate by a pin shaft, and the other of the lower connecting plates is arranged in the movable hole by a pin shaft.

[0006] Furthermore, the movable hole is an oblong hole.

[0007] Furthermore, a pin is provided between the two upper connecting pieces, and a pin is provided between the two lower connecting pieces.

[0008] Furthermore, the two cross-arranged upper connecting plates and the lower connecting plate are connected to each other via a pin shaft.

[0009] Furthermore, a synchronization shaft is provided at the position where the upper connection plate is connected to the lower connection plate, a limit rod is provided on the synchronization shaft, and a rocker is provided on one side of the limit rod.

[0010] Furthermore, each of the pin positions is provided with a screw for tightening or fixing.

[0011] The beneficial effects of the utility model: when the device is in use, the overall bracket is directly moved to a preset position, and the lifting operation of the lifting plate can be completed by the movement of the upper cross component and the lower cross component, the two upper connecting pieces on the upper cross component rotate along the intersection point, and the two lower connecting pieces on the lower cross component rotate along the intersection point, and the upper and lower connecting pieces are also connected. Because one of the upper and lower connecting pieces is fixed on the lifting plate and the bottom plate, and the other can be moved in the moving hole, the height of the lifting plate can be changed. A pin is provided between the two upper connecting pieces, and a pin is provided between the two lower connecting pieces. The two cross-arranged upper connecting pieces and the lower connecting piece are connected to each other through the pin, and each pin position is provided with a screw for tightening or fixing. Each connection point is fixedly connected by a pin and can therefore be moved and rotated. The structure is simple, convenient to fold and carry, and easy to operate. It is suitable for use in most small scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Explanation of the numbers in the figure: 1. Base plate; 2. Lifting plate; 3. Lower movable side plate; 4. Upper movable side plate; 5. Moving hole; 6. Upper connecting plate; 7. Pin shaft; 8. Synchronous shaft; 9. Limit rod; 10. Rocker; 11. Screw. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0017] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0020] Reference Figure 1As shown, an embodiment of a simple lifting bracket for projection that is easy to move of the utility model comprises a bottom plate 1 and a lifting plate 2 that are arranged relatively to each other, symmetrical lower movable side plates 3 are arranged on both sides of the bottom plate 1, and symmetrical upper movable side plates 4 are arranged on the lifting plate 2, and movable holes 5 are arranged on the lower movable side plates 3 and the upper movable side plates 4; it comprises two upper cross components, and the upper cross components comprise two cross-arranged upper connecting pieces 6, one of which is fixedly connected to the upper movable side plate 4 by a pin shaft 7, and the other of which is arranged in the movable hole 5 by the pin shaft 7; it comprises two lower cross components, and the lower cross components comprise two cross-arranged lower connecting pieces, one of which is fixedly connected to the lower movable side plate 3 by a pin shaft 7, and the other of which is arranged in the movable hole 5 by the pin shaft 7.

[0021] When in use, directly move the overall bracket to the preset position, and the lifting operation of the lifting plate 2 can be completed by the movement of the upper cross component and the lower cross component. The two upper connecting pieces 6 on the upper cross component rotate along the intersection, and the two lower connecting pieces of the lower cross component rotate along the intersection, and the upper and lower connecting pieces are also connected. Because one of the upper and lower connecting pieces is fixed on the lifting plate 2 and the bottom plate 1, and the other can be moved in the moving hole 5, the height of the lifting plate 2 can be changed. A pin shaft 7 is provided between the two upper connecting pieces 6, and a pin shaft 7 is provided between the two lower connecting pieces. The two cross-arranged upper connecting pieces 6 and the lower connecting piece are connected to each other through the pin shaft 7. Each position of the pin shaft 7 is provided with a screw 11 for tightening or fixing. Each connection point is fixedly connected by the pin shaft 7 and can therefore be moved and rotated.

[0022] The movable hole 5 is an oblong hole, which facilitates the lateral movement of the upper connecting plate 6 and the lower connecting plate at the fixed point in the movable hole 5; a synchronous shaft 8 is arranged at the position where the upper connecting plate 6 is connected to the lower connecting plate, and a limit rod 9 is arranged on the synchronous shaft 8, and a rocker 10 is arranged on one side of the limit rod 9. The synchronous shaft 8 is used to drive the two upper cross components and the lower cross components to move synchronously, and the limit rod 9 on the synchronous shaft 8 ensures that the two synchronous shafts 8 are at the same height. The distance between the two synchronous shafts 8 can be adjusted by rotating the rocker 10, thereby driving the lifting plate 2 to move up and down.

[0023] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A simple lifting bracket for projection that is easy to move, characterized in that: It comprises a bottom plate (1) and a lifting plate (2) arranged opposite to each other, wherein symmetrical lower movable side plates (3) are arranged on both sides of the bottom plate (1), and symmetrical upper movable side plates (4) are arranged on the lifting plate (2), and movable holes (5) are arranged on both the lower movable side plates (3) and the upper movable side plates (4); The upper cross assembly comprises two upper cross assemblies, wherein the upper cross assemblies comprise two upper connecting pieces (6) arranged crosswise, wherein one of the upper connecting pieces (6) is fixedly connected to the upper movable side plate (4) via a pin shaft (7), and the other upper connecting piece (6) is arranged in the movable hole (5) via a pin shaft (7); It comprises two lower cross components, each of which comprises two cross-arranged lower connecting plates, one of which is fixedly connected to the lower movable side plate (3) via a pin shaft (7), and the other of which is arranged in the movable hole (5) via a pin shaft (7).

2. The easy-to-move lifting bracket for projection as claimed in claim 1, characterized in that: The movable hole (5) is an oblong hole.

3. The easy-to-move lifting bracket for projection as claimed in claim 1, characterized in that: A pin shaft (7) is arranged between the two upper connecting plates (6), and a pin shaft (7) is arranged between the two lower connecting plates.

4. The easy-to-move lifting bracket for projection as claimed in claim 1, characterized in that: The two cross-arranged upper connecting plates (6) and the lower connecting plate are connected to each other via a pin shaft (7).

5. The easy-to-move and simple lifting bracket for projection as claimed in claim 1, characterized in that: A synchronization shaft (8) is provided at the position where the upper connection plate (6) is connected to the lower connection plate, a limit rod (9) is provided on the synchronization shaft (8), and a rocker (10) is provided on one side of the limit rod (9).

6. The easy-to-move and simple lifting bracket for projection as claimed in claim 1, characterized in that: Each of the pin shafts (7) is provided with a screw (11) for tightening or fixing.

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