Projector mounting rack for teaching

Abstract

The utility model relates to the technical field of projection equipment, in particular to a projector mounting rack for teaching, which comprises a support frame, a projector supporting plate and a movable connecting piece, the support frame is used for supporting the projector supporting plate, and hollow connecting frames are arranged at four corners of the bottom surface of the projector supporting plate. Each movable connecting piece comprises a connecting screw rod and a first mounting module hinged to the connecting screw rod, the first mounting modules used for being connected with a projector supporting plate are arranged at the tops of the opposite faces of every two supporting frames, the top ends of the connecting screw rods are inserted into the connecting frames, and a pair of nuts is arranged on each connecting screw rod and located on the upper side and the lower side of the bottom face of the corresponding connecting frame respectively. The height of the connecting frame is adjusted by adjusting the position of the nut on the connecting screw, so that the inclination angle of the projector supporting plate is adjusted. The projector supporting plate has the beneficial effects that the inclination angle of the projector supporting plate is flexibly adjusted through the matching of the movable connecting piece, particularly the connecting screw rod and the mounting module I, no additional padding is needed, and the use convenience and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a projector mounting bracket for teaching. Background Art

[0002] Projectors are also used in existing outdoor teaching, but it is very troublesome to fix the projector outdoors. Therefore, a mounting frame structure is needed to support the projector. The general projector mounting frame is large and not easy to carry. The installation and disassembly process is cumbersome. The projector mounting frame has poor adjustability, especially after the projector is placed on the mounting frame, the tilt angle needs to be adjusted. The adjustable tilt support feet on the projector have a small adjustment range and poor adjustability. Sometimes, objects need to be placed under the support feet, which is inconvenient and unsafe to use. Utility Model Content

[0003] The utility model aims to provide a projector mounting stand for teaching, which solves the technical problems of the existing projector mounting stand used for outdoor teaching, such as the troublesome disassembly and assembly, the small range of adjusting the inclination angle and the poor adjustability.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a projector mounting bracket for teaching, which includes a support bracket, a projector tray and a movable connecting piece, the support bracket has a nut for supporting the projector tray, a hollow connecting bracket is provided at the four corners of the bottom surface of the projector tray, the movable connecting piece includes a connecting screw and a mounting module 1 for articulating the connecting screw, a mounting module 1 for connecting the projector tray is provided at the top of each two opposing surfaces of the support bracket, the top of the connecting screw is inserted into the connecting bracket, a pair of nuts is provided on the connecting screw and are respectively located on the upper and lower sides of the bottom surface of the connecting bracket, and the height adjustment of the connecting bracket is achieved by adjusting the position of the nut on the connecting screw, thereby adjusting the inclination angle of the projector tray. In the present utility model, the device realizes the flexible adjustment of the inclination angle of the projector tray through the cooperation of the movable connecting piece, especially the connecting screw and the mounting module 1, without the need for additional padding, thereby improving the convenience and safety of use.

[0005] As a preferred embodiment of the present invention's projector mounting bracket for educational use, the connecting bracket has a U-shaped structure, with a waist-shaped through-hole defined in its bottom surface. A connecting screw passes through the waist-shaped through-hole, and nuts are positioned on the upper and lower sides of the waist-shaped through-hole to secure the connecting screw. The waist-shaped through-hole in the bottom surface of the connecting bracket provides a stable sliding path for the connecting screw, allowing for more convenient and rapid adjustment of the nut and connecting screw. Even slight positional deviations or misalignments are accommodated by the waist-shaped through-hole, ensuring smooth installation and proper function of the parts.

[0006] As a preferred embodiment of a projector mounting stand for educational use, the present invention comprises a support frame comprising a fixed base post and a lifting and adjusting post. The bottom end of the fixed base post rests on the ground, and the top end of the fixed base post is threadedly connected to the lifting and adjusting post. Rotating the lifting and adjusting post allows for adjustment of the height of the lifting and adjusting post. This utility model utilizes the threaded engagement between the lifting and adjusting post and the fixed base post to enable rapid height adjustment of the mounting frame, meeting the varying height requirements for projectors in various teaching environments.

[0007] As a preferred embodiment of the present invention's projector mount for educational use, a ground-boring cone is provided at the bottom end of the fixed base post. The ground-boring cone has a spiral pattern on its surface for drilling into the ground. This design enhances the stability of the mount on the ground, effectively resisting the effects of wind and other external forces on the projector, particularly when used outdoors.

[0008] As a preferred embodiment of the present invention's projector mounting bracket for educational use, the support frame further includes a connecting crossbar, with mounting modules 2 disposed at both ends thereof. Mounting modules 2 and 1 have the same structure. The lifting column is provided with multiple snap-in clips for attaching and securing mounting modules 1 or 2, with the snap-in clips positioned away from the bottom threads of the lifting column. This connecting crossbar provides lateral support for the overall structure, enhancing its stability and rigidity.

[0009] As a preferred embodiment of the present invention, a projector mounting bracket for teaching use, the first mounting module includes a latch head and a limit pin, the latch head is hingedly connected to the bottom end of the connecting screw, a through hole for the latch head to be inserted is provided on the plug buckle, a movable slot for installation and rotation of the limit pin is provided on the latch head, the rotation axis of the limit pin is set below the movable slot and away from the notch of the movable slot, when the limit pin is rotated into the movable slot, the latch head can move in the through hole, and when the limit pin is rotated until one end of the limit pin abuts against the plug buckle, the latch head is prevented from moving in the through hole. In the present invention, the latch head and the plug buckle are connected by a plug-in method, which enables quick installation and disassembly and improves usage efficiency. The plug-in buckle design of the support frame, in conjunction with the limit pin, provides stable support.

[0010] As a preferred solution of the utility model for a projector mounting bracket for teaching, the top surface of the limit pin piece close to the inner wall of the movable groove is set as an arc surface for rotating out of the bottom of the through hole, the bottom end of the limit pin piece close to the rotating axis and close to the inner wall of the movable groove is set as a rounded corner, and an inclined surface is set between the bottom surface of the limit pin piece and the rounded corner. When the limit pin piece is rotated to a state where one end of the limit pin piece is against the plug buckle, the inclined surface is tightly against the inner wall of the movable groove, so that the limit pin piece prevents the pin head from moving in the through hole.

[0011] As a preferred embodiment of the present invention's projector mounting bracket for educational use, the through hole has a wider end near the connecting screw than the other end, and the shape of the latch head matches the through hole. By configuring the shape of the latch head, the present invention prevents the latch head from completely passing through the through hole, making it more convenient to use.

[0012] As a preferred embodiment of the present invention's teaching projector mounting bracket, the top surface of the projector support plate is provided with anti-slip protrusions. The present invention utilizes the anti-slip protrusions to enhance the anti-slip performance, making the projector less likely to slide when the projector support plate is adjusted in height, thereby increasing safety.

[0013] The beneficial effects of the teaching projector mounting bracket of the present invention are as follows: the support bracket of the present invention adopts a lifting and adjustable structure with threaded connection, which is more convenient to install and disassemble, and easier to adjust the height, and the bottom end of the support bracket can be directly embedded in the ground, making the device more stable and firm; in addition, the projector support plate is installed on the support bracket with a movable connecting piece, and the movable connecting piece and the support bracket are plug-in connected, which is convenient to install and disassemble and not easy to fall off; the movable connecting piece and the projector support plate are connected with a screw, and the inclination angle of the projector support plate is more convenient to adjust by adjusting the nut on the screw, thereby increasing the adjustment range of the projector inclination angle and adapting to more scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0015] Figure 1 It is a schematic diagram of the overall structure of the device in the present utility model.

[0016] Figure 2 This is a schematic structural diagram of the projector support plate of the device in the present utility model in another angle state.

[0017] Figure 3 It is a partially enlarged schematic diagram of the movable connecting member in the present utility model. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Reference Figure 1-3 This embodiment provides a projector mounting stand for teaching, which effectively solves the shortcomings of existing projector mounting stands for outdoor teaching in terms of installation, adjustment, portability and stability.

[0022] The projector mounting bracket 3 is a kind of teaching projector mounting bracket, and comprises a support bracket 1, a projector support plate 2 and a movable connecting member 3. The support bracket 1 has 4, is used to support the projector support plate 2, and the four corners of the bottom surface of the projector support plate 2 are provided with hollow connecting brackets 21. When in use, the four support brackets 1 are respectively inserted into the ground opposite to the connecting bracket 21 according to the size of the projector support plate 2 for fixing. The movable connecting member 3 comprises a connecting screw 31 and a mounting module 32 of a hinged connecting screw 31. The connecting screw 31 can swing in a vertical plane. The top of each two opposing surfaces of the support brackets 1 is provided with a mounting module 32 for connecting the projector support plate 2. The top end of the connecting screw 31 is inserted into the connecting bracket 21. A pair of nuts are provided on the connecting screw 31 and are respectively located on the upper and lower sides of the bottom surface of the connecting bracket 21. The connecting bracket 21 is clamped by adjusting the position of the two nuts on the connecting screw 31 to realize the height adjustment of the connecting bracket 21. The height of the four connecting brackets 21 is adjusted respectively, thereby adjusting the inclination angle of the projector support plate 2.

[0023] Furthermore, the connecting frame 21 has a U-shaped structure, and a waist-shaped through hole is provided on the bottom surface of the connecting frame 21, and the connecting screw 31 passes through the waist-shaped through hole. Nuts for fixing the connecting screw 31 are respectively provided on the upper and lower sides of the waist-shaped through hole. The waist-shaped through hole provides a stable sliding path for the connecting screw 31, and the nut and the connecting screw 31 can be adjusted more conveniently and quickly. Even if there are slight position deviations or misalignments, the waist-shaped through hole can accommodate these deviations, ensuring that the device can be smoothly installed and used normally.

[0024] Specifically, the support frame 1 includes a fixed base column 12 and a lifting adjustment column 13. The fixed base column 12 and the lifting adjustment column 13 are cylindrical structures and are provided in four forms. The bottom end of the fixed base column 12 is placed on the ground, and the top end of the fixed base column 12 is provided with a threaded hole along the vertical direction. The lifting adjustment column 13 is provided with an external thread on the outer contour near the bottom end. The top end of the fixed base column 12 is threadedly connected to the lifting adjustment column 13. After fixing the fixed base column 12, the lifting adjustment column 13 can be rotated to adjust the height of the lifting adjustment column 13, thereby meeting the different requirements for the height of the projector in different teaching occasions.

[0025] Furthermore, a drilling cone is provided at the bottom end of the fixed base column 12, and the surface of the drilling cone is provided with spiral patterns for drilling into the ground for fixation, thereby enhancing the stability of the mounting frame on the ground, especially when used outdoors, and can effectively resist the influence of wind and other external forces on the projector.

[0026] Furthermore, the support frame 1 also includes a connecting cross bar 11, which provides lateral support for the overall structure and enhances the stability and rigidity of the structure. Installation modules 2 321 are provided at both ends of the connecting cross bar 11. The installation module 2 321 has the same structure as the installation module 1 32. A plurality of plug-in buckles 14 for plugging and fixing the installation module 1 32 or the installation module 2 321 are provided on the lifting adjustment column 13. The plug-in buckles 14 are away from the bottom thread of the lifting adjustment column 13 and will not interfere with the height adjustment of the device.

[0027] Specifically, the mounting module 1 32 includes a latch head 33 and a limit pin 34. The latch head 33 is hingedly connected to the bottom end of the connecting screw 31. A through hole 15 for the latch head 33 to be inserted is provided on the plug buckle 14. A movable groove 35 for installation and rotation of the limit pin 34 is provided on the latch head 33. The rotation axis of the limit pin 34 is set below the movable groove 35 and away from the notch of the movable groove 35. When the limit pin 34 is rotated into the movable groove 35, the latch head 33 can move in the through hole 15. When the limit pin 34 is rotated to the state where one end of the limit pin 34 is against the plug buckle 14, the latch head 33 is prevented from moving in the through hole 15.

[0028] When the locking cam 33 is in the unlocked position, the locking cam 33 is in the unlocked position, and the locking cam 33 is in the unlocked position, so that the locking cam 33 is locked and the projector support 2 is quickly installed on the lifting adjustment column 13.

[0029] Furthermore, the width of one end of the through hole 15 close to the connecting screw 31 is greater than the width of the other end, and the shape of the pin head 33 matches the through hole 15. With this arrangement, the pin head 33 can be inserted into the through hole 15 without completely passing through the through hole 15. Because the top of the limiting pin piece 34 is clamped on the bottom surface of the plug buckle 14, the pin head 33 can be clamped in the through hole 15 after being inserted into the plug buckle 14, which makes operation simple.

[0030] Preferably, the top surface of the projector support plate 2 is provided with anti-skid protrusions, so that the projector is not easy to slide when the projector support plate 2 is adjusted in height, which is safer.

[0031] In summary, the support frame adopts a lifting and adjustable structure with a threaded connection. The threaded connection is easy to install and disassemble, and the bottom end of the support frame can be directly embedded in the ground. In addition, the projector tray is installed on the support frame with a movable connection. The movable connection and the support frame are plug-in connected, which is easy to install and disassemble and not easy to fall off. The movable connection and the projector tray are connected with a screw, and the inclination angle of the projector tray is easy to adjust, which increases the adjustment range of the projector inclination angle.

[0032] When in use, first, according to the size of the projector tray 2, the drilled cones at the bottom ends of the four fixed base columns 12 are respectively inserted into the ground opposite the connecting frame 21, and adjusted to the required height by rotating the lifting adjustment column 13. Then the connecting cross bar 11 is connected to the two adjacent lifting adjustment columns 13 through the installation module 2 321. Next, the projector tray 2 is placed on the lifting adjustment column 13, and the angle of the projector tray 2 is adjusted by connecting the connecting screw 31 on the installation module 1 32 and the connecting frame 21. The pin head 33 is inserted into the through hole 15, and gravity is used to rotate the top of the limit pin 34 out of the movable groove 35 and against the plug buckle 14 to fix the projector tray 2. The installation operation is very simple. According to the projection requirements, adjust the nut on the connecting screw 31 to adjust the inclination angle of the projector tray 2 to ensure that the projector angle is suitable for the viewing angle. The device has a simple and lightweight structure and is easy to carry after disassembly.

[0033] Any portion of the above description not specifically described herein is prior art or can be implemented using prior art. Furthermore, the specific implementation examples described in this utility model are merely preferred implementation examples of this utility model and are not intended to limit the scope of this utility model. In other words, any equivalent variations and modifications made within the scope of this utility model should be considered within the technical scope of this utility model.

Claims

1. A projector mounting bracket for teaching, characterized in that: The invention comprises a support frame (1), a projector support plate (2) and a movable connecting member (3). The support frames (1) have four parts and are used to support the projector support plate (2). A hollow connecting frame (21) is provided at four corners of the bottom surface of the projector support plate (2). The movable connecting member (3) comprises a connecting screw (31) and a mounting module (32) for hingedly connecting the connecting screw (31). The top of each two opposing surfaces of the support frames (1) is provided with a mounting module (32) for connecting the projector support plate (2). The top of the connecting screw (31) is inserted into the connecting frame (21). A pair of nuts are provided on the connecting screw (31) and are respectively located on the upper and lower sides of the bottom surface of the connecting frame (21). The height of the connecting frame (21) can be adjusted by adjusting the position of the nut on the connecting screw (31), thereby adjusting the inclination angle of the projector support plate (2).

2. The teaching projector mounting bracket according to claim 1, characterized in that: The connecting frame (21) is in a U-shaped structure, and a waist-shaped through hole is provided on the bottom surface of the connecting frame (21), through which the connecting screw (31) passes, and nuts for fixing the connecting screw (31) are respectively arranged on the upper and lower sides of the waist-shaped through hole.

3. The teaching projector mounting bracket according to claim 1, characterized in that: The support frame (1) comprises a fixed bottom column (12) and a lifting adjustment column (13). The bottom end of the fixed bottom column (12) is placed on the ground, and the top end of the fixed bottom column (12) is threadedly connected to the lifting adjustment column (13). The height of the lifting adjustment column (13) can be adjusted by rotating the lifting adjustment column (13).

4. The teaching projector mounting bracket according to claim 3, characterized in that: A drilling cone is arranged at the bottom end of the fixed bottom column (12), and a spiral pattern is arranged on the surface of the drilling cone for drilling into the ground.

5. The teaching projector mounting bracket according to claim 3, characterized in that: The support frame (1) also includes a connecting crossbar (11), and mounting modules 2 (321) are arranged at both ends of the connecting crossbar (11). The mounting module 2 (321) has the same structure as the mounting module 1 (32). A plurality of plug-in buckles (14) are arranged on the lifting and adjusting column (13) for plugging and fixing the mounting module 1 (32) or the mounting module 2 (321), and the plug-in buckles (14) are far away from the bottom thread of the lifting and adjusting column (13).

6. The teaching projector mounting bracket according to claim 1, characterized in that: The mounting module 1 (32) comprises a latch head (33) and a limit pin (34), the bottom end of the connecting screw (31) is hingedly connected to the latch head (33), the plug buckle (14) is provided with a through hole (15) for the latch head (33) to be inserted, the latch head (33) is provided with a movable groove (35) for installation and rotation of the limit pin (34), the rotation axis of the limit pin (34) is arranged below the movable groove (35) and away from the notch of the movable groove (35), when the limit pin (34) is rotated into the movable groove (35), the latch head (33) can move in the through hole (15), and when the limit pin (34) is rotated to a state where one end thereof abuts against the plug buckle (14), the latch head (33) is prevented from moving in the through hole (15).

7. The teaching projector mounting bracket according to claim 6, characterized in that: The top surface of the limiting pin (34) close to the inner wall of the movable groove (35) is set as an arc surface for rotating out of the bottom of the through hole (15); the corner of the bottom end of the limiting pin (34) close to the rotation axis and close to the inner wall of the movable groove (35) is set as a rounded corner; an inclined surface is set between the bottom surface of the limiting pin (34) and the rounded corner; when the limiting pin (34) is rotated to a state where one end of the limiting pin (34) abuts against the plug buckle (14), the inclined surface is closely attached to the inner wall of the movable groove (35), so that the limiting pin (34) prevents the plug head (33) from moving in the through hole (15).

8. The teaching projector mounting bracket according to claim 7, characterized in that: The width of one end of the through hole (15) close to the connecting screw rod (31) is greater than the width of the other end, and the shape of the latch head (33) matches the through hole (15).

9. The teaching projector mounting bracket according to claim 1, characterized in that: The top surface of the projector support plate (2) is provided with anti-slip protrusions.

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