Projector support convenient to move for student teaching

Abstract

The utility model discloses a student teaching projector support convenient to move, which comprises a base, the top of the base is fixedly connected with a fixing ring, the top of the fixing ring is fixedly connected with a clamping ring, the top of the base is rotatably connected with a connecting cylinder, the connecting cylinder is sleeved on the surface of the clamping ring, the connecting cylinder is matched with the clamping ring, and the top of the connecting cylinder is fixedly connected with a vertical rod. A mounting plate is fixedly connected to the top of the vertical rod, a bottom plate is arranged in the base and vertically slides at the bottom of the base, a sliding mechanism for sliding the bottom plate is arranged in the base, and universal wheels are mounted at four corners of the bottom of the base. Through the arrangement of the bottom plate, the bottom plate can slide up and down while the connecting cylinder is rotated, and meanwhile, the four supporting plates can be rotated, so that the bottom plate is in contact with the ground, the device is supported, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projector brackets, in particular to a projector bracket for student teaching that is easy to move. Background Art

[0002] The projector stand is usually made of metal material and has adjustable height and angle to adapt to different projection needs. The projector stand can ensure that the projector maintains a stable position to avoid image blur or distortion due to movement or shaking of the projector. The projector stand usually has adjustable height and angle, and the projection angle and position of the projector can be adjusted as needed to obtain the best image effect.

[0003] However, the projector stand suitable for student teaching is usually placed on the ground so that it can be carried at any time. However, most of the existing projector stands do not have a mobile function. Due to the heavy weight of the projector, it is not convenient to move it. Some projector stands are equipped with rollers at the bottom, but they are not stable enough when used. In teaching, students often focus on stability, which makes it unstable when used and it is easy to touch or shake it, which may easily cause the projector to break. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and provides a projector bracket for student teaching which is easy to move.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A projector bracket for student teaching that is easy to move comprises a base, a fixing ring is fixedly connected to the top of the base, a clamping ring is fixedly connected to the top of the fixing ring, a connecting tube is rotatably connected to the top of the base, the connecting tube is sleeved on the surface of the clamping ring, the connecting tube cooperates with the clamping ring, a vertical rod is fixedly connected to the top of the connecting tube, a mounting plate is fixedly connected to the top of the vertical rod, a bottom plate is arranged inside the base, the bottom plate slides vertically on the bottom of the base, a sliding mechanism for sliding the bottom plate is arranged inside the base, universal wheels are installed at the four corners of the bottom of the base, and by setting the bottom plate, the bottom plate can slide up and down while rotating the connecting tube, and the four supporting plates can also be rotated at the same time, so that the bottom plate contacts the ground, thereby supporting the device, thereby improving the stability of the device.

[0007] Preferably, the sliding mechanism includes a sleeve, a fixed cylinder is vertically fixedly connected to the bottom of the base, and two limit grooves are vertically provided on the inner wall of the fixed cylinder, the sleeve is fixedly connected to the center of the top of the bottom plate, the sleeve is sleeved inside the fixed cylinder, and two limit blocks are fixedly connected to the arc surface of the sleeve surface, and the two limit blocks slide in the two limit grooves respectively, the fixed cylinder is connected to the inside of the fixed ring, four second vertical grooves are vertically penetrated through the inner wall of the fixed cylinder, a connecting rod is vertically slid inside the fixed cylinder, the connecting rod slides vertically inside the sleeve, and four communicating grooves are vertically penetrated on the surface of the sleeve, and the four communicating grooves correspond to the four second vertical grooves respectively, four first sliding blocks are fixedly connected to the bottom end of the connecting rod, and the four first sliding blocks slide in the four second vertical grooves respectively, and a matching block is fixedly connected to the top of the connecting rod, a thread is provided on the surface of the matching block, and a thread is provided inside the connecting cylinder, and the matching block cooperates with the thread inside the connecting cylinder to limit the rotation of the connecting cylinder, so that the matching block and the connecting rod slide up and down.

[0008] Furthermore, four fixing plates are fixedly connected at the arc surface of the bottom plate surface, the four fixing plates are evenly distributed in a ring shape, and connecting grooves are provided on the tops of the four fixing plates away from each other at one end, four slides are installed on the top of the bottom plate, the four slides are respectively arranged on the tops of the four fixing plates, and second sliders are slid inside the four slides, and the first support rods and the second support rods are respectively hinged at both ends of the tops of the four second sliders, the tops of the four first support rods are respectively hinged to the surfaces of the four first sliders, and the four connecting grooves are respectively rotatably connected with support plates, the four support plates respectively slide inside the four first vertical grooves, and the tops of the four second support rods are respectively hinged to the surfaces of the four support plates, for driving the four first sliders to slide up and down, and under the connection of the first slider and the second support rod, the four support plates will rotate.

[0009] The beneficial effects of the utility model are:

[0010] 1. When in use, by setting the bottom plate, the bottom plate can slide up and down while the connecting tube is rotated, and the four supporting plates will also be rotated, so that the bottom plate contacts the ground, thereby supporting the device and improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of a projector stand for student teaching that is easy to move, proposed by the utility model;

[0012] Figure 2 This is a cross-sectional view of the internal structure of the base of a projector stand for student teaching that is easy to move, which is proposed by the utility model;

[0013] Figure 3 for Figure 2 A magnified image of point A;

[0014] Figure 4 The utility model provides a local structural sectional view of a movable projector bracket for student teaching.

[0015] In the figure: 1, base; 11, universal wheel; 12, first vertical groove; 13, fixing ring; 14, snap ring; 15, fixing cylinder; 16, second vertical groove; 17, limiting groove; 2, connecting cylinder; 21, vertical pole; 22, mounting plate; 3, bottom plate; 31, fixing plate; 32, connecting groove; 33, slideway; 34, sleeve; 35, limiting block; 36, connecting groove; 4, connecting rod; 41, matching block; 42, first slider; 43, first support rod; 44, second slider; 45, second support rod; 46, support plate. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Reference Figure 1-Figure 4 A projector bracket for student teaching that is easy to move includes a base 1, a fixing ring 13 is fixedly connected to the top of the base 1, a clamping ring 14 is fixedly connected to the top of the fixing ring 13, a connecting tube 2 is rotatably connected to the top of the base 1, the connecting tube 2 is sleeved on the surface of the clamping ring 14, the connecting tube 2 cooperates with the clamping ring 14, a vertical rod 21 is fixedly connected to the top of the connecting tube 2, a mounting plate 22 is fixedly connected to the top of the vertical rod 21, a bottom plate 3 is arranged inside the base 1, the bottom plate 3 slides vertically on the bottom of the base 1, a sliding mechanism for sliding the bottom plate 3 is arranged inside the base 1, and universal wheels 11 are installed at the four corners of the bottom of the base 1. By setting the bottom plate 3, the bottom plate 3 can slide up and down while rotating the connecting tube 2, and the four supporting plates 46 can also be rotated at the same time, so that the bottom plate 3 is in contact with the ground, thereby supporting the device, thereby improving the stability of the device.

[0018] Reference Figure 2 , Figure 3 and Figure 4In a preferred embodiment, the sliding mechanism includes a sleeve 34, a fixed cylinder 15 is vertically fixedly connected to the bottom of the base 1, and two limit grooves 17 are vertically opened on the inner wall of the fixed cylinder 15. The sleeve 34 is fixedly connected to the top center of the bottom plate 3, and the sleeve 34 is sleeved inside the fixed cylinder 15. Two limit blocks 35 are fixedly connected to the arc surface of the sleeve 34. The two limit blocks 35 slide in the two limit grooves 17 respectively. The fixed cylinder 15 is connected to the inside of the fixed ring 13. Four second vertical grooves 16 are vertically penetrated through the inner wall of the fixed cylinder 15. A connecting rod 4 slides vertically inside the fixed cylinder 15. The connecting rod 4 slides vertically inside the sleeve 34, and four connecting grooves 36 are vertically penetrated on the surface of the sleeve 34. The four connecting grooves 36 correspond to the four second vertical grooves 16 respectively. The bottom end of the connecting rod 4 is fixedly connected to four first sliders 42, and the four first sliders 42 slide in the four second vertical grooves 16 respectively. The top end of the connecting rod 4 is fixedly connected to a matching block 41, and the surface of the matching block 41 is provided with a thread, and the inside of the connecting tube 2 is provided with a thread. The matching block 41 cooperates with the thread inside the connecting tube 2 to limit the rotation of the connecting tube 2, so that the matching block 41 and the connecting rod 4 slide up and down.

[0019] Reference Figure 1 , Figure 2 and Figure 4 In a preferred embodiment, four fixing plates 31 are fixedly connected to the arc surface of the bottom plate 3, and the four fixing plates 31 are evenly distributed in a ring shape. The four fixing plates 31 are each provided with a connecting groove 32 at the top of one end away from each other. Four slideways 33 are installed on the top of the bottom plate 3, and the four slideways 33 are respectively arranged on the top of the four fixing plates 31. Second sliders 44 are slid inside the four slideways 33, and the first support rods 43 and the second support rods 45 are respectively hinged at both ends of the top of the four second sliders 44. The top ends of the four first support rods 43 are respectively hinged to the surfaces of the four first sliders 42, and the four connecting grooves 32 are respectively rotatably connected with support plates 46, which slide inside the four first vertical grooves 12, and the top ends of the four second support rods 45 are respectively hinged to the surfaces of the four support plates 46, which are used to drive the four first sliders 42 to slide up and down. Under the connection between the first slider 42 and the second support rod 45, the four support plates 46 will rotate.

[0020] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: in actual use, by setting the bottom plate 3, the bottom plate 3 can be slid up and down while the connecting tube 2 is rotated, and the four supporting plates 46 can be rotated at the same time, so that the bottom plate 3 is in contact with the ground, thereby supporting the device, thereby improving the stability of the device. When in use, the projector device can be installed on the top of the mounting plate 22, and then the device can be moved by setting the four universal wheels 11, so that the device is more convenient to move. After the position adjustment is completed, the connecting tube 2 and the vertical rod 21 can be rotated, and the matching block Under the cooperation of 41, the matching block 41 and the connecting rod 4 will slide downward, and under the connection of the four first sliders 42 and the four first support rods 43, the four second sliders 44 will slide away from each other, and under the connection of the four second support rods 45, the four support plates 46 will rotate, so that the four support plates 46 slide parallel to the bottom plate 3, and then after the bottom end of the connecting rod 4 slides to the bottom of the sleeve 34, it will drive the bottom plate 3 and the four support plates 46 to slide downward at the same time, so that the bottom plate 3 and the four support plates 46 can contact the ground, and the four universal wheels 11 are no longer in contact with the ground, so that the device can be supported and the stability of the device is better.

[0021] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A portable projector stand for student teaching, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a fixing ring (13), the top of the fixing ring (13) is fixedly connected to a snap ring (14), the top of the base (1) is rotatably connected to a connecting tube (2), the connecting tube (2) is sleeved on the surface of the snap ring (14), the connecting tube (2) and the snap ring (14) cooperate, the top of the connecting tube (2) is fixedly connected to a vertical rod (21), the top of the vertical rod (21) is fixedly connected to a mounting plate (22), a bottom plate (3) is arranged inside the base (1), the bottom plate (3) slides vertically on the bottom of the base (1), a sliding mechanism for sliding the bottom plate (3) is arranged inside the base (1), and universal wheels (11) are installed at the four corners of the bottom of the base (1).

2. The portable projector stand for student teaching according to claim 1, characterized in that: The sliding mechanism comprises a sleeve (34), a fixed cylinder (15) is vertically fixedly connected to the bottom of the base (1), two limit grooves (17) are vertically provided on the inner wall of the fixed cylinder (15), the sleeve (34) is fixedly connected to the top center of the bottom plate (3), the sleeve (34) is sleeved inside the fixed cylinder (15), two limit blocks (35) are fixedly connected to the arc surface of the sleeve (34), and the two limit blocks (35) slide inside the two limit grooves (17) respectively.

3. The portable projector stand for student teaching according to claim 2, characterized in that: The fixed cylinder (15) is connected to the interior of the fixed ring (13); four second vertical grooves (16) are vertically penetrated through the inner wall of the fixed cylinder (15); a connecting rod (4) is vertically slid inside the fixed cylinder (15); the connecting rod (4) vertically slides inside the sleeve (34); four connecting grooves (36) are vertically penetrated through the surface of the sleeve (34); the four connecting grooves (36) respectively correspond to the four second vertical grooves (16); four first sliding blocks (42) are fixedly connected to the bottom end of the connecting rod (4); the four first sliding blocks (42) respectively slide inside the four second vertical grooves (16).

4. The portable projector stand for student teaching according to claim 3, characterized in that: The top end of the connecting rod (4) is fixedly connected with a matching block (41), the surface of the matching block (41) is provided with threads, the interior of the connecting tube (2) is provided with threads, and the matching block (41) matches with the threads inside the connecting tube (2).

5. The portable projector stand for student teaching according to claim 4, characterized in that: Four fixing plates (31) are fixedly connected to the curved surface of the bottom plate (3), the four fixing plates (31) are evenly distributed in a ring shape, and the tops of the four fixing plates (31) are each provided with a connecting groove (32) away from one end thereof. Four slideways (33) are installed on the top of the bottom plate (3), and the four slideways (33) are respectively arranged on the tops of the four fixing plates (31).

6. The portable projector stand for student teaching according to claim 5, characterized in that: A second slider (44) is slidably mounted inside the four slideways (33), and the first support rod (43) and the second support rod (45) are respectively hinged at both ends of the top of the four second sliders (44), and the top ends of the four first support rods (43) are respectively hinged to the surfaces of the four first sliders (42), and support plates (46) are rotatably mounted inside the four connecting grooves (32), and the four support plates (46) slide inside the four first vertical grooves (12), and the top ends of the four second support rods (45) are respectively hinged to the surfaces of the four support plates (46).

Images