Projector with folding support

Abstract

The utility model relates to the technical field of projectors, and discloses a projector with a folding support, which comprises a projector body and a base ring, a connecting hinge lug is arranged at the bottom end of the projector body and is hinged with a rotary connecting piece, and the tail end of the rotary connecting piece is inserted into a rotary cylinder at the top end of a fixed ring to realize horizontal rotary adjustment. Four first hinge lugs are arranged on the outer cylindrical face of the fixing ring and rotationally connected with second hinge lugs at the top ends of guide blocks through connecting rods, the guide blocks are slidably installed in guide cavities in the fixing frames, and auxiliary connecting holes in the front ends of the fixing frames and auxiliary guide holes of the guide blocks are matched with auxiliary rods to ensure stable sliding, push the guide blocks to slide in the fixing frames and drive the fixing ring to move up and down. After the height of the projector body is changed and adjusted in place, the limiting end is inserted into the limiting hole and the fixed support structure under the elastic action of the fixed spring, and when the projector is not used, the guide block is moved outwards to enable the limiting end to be separated from the limiting hole and the fixed ring positioning hole to be inserted into the base ring positioning column, so that compact storage and convenient storage and carrying are realized.

Description

Technical Field

[0001] This utility model relates to the field of projector technology, specifically a projector with a folding stand. Background Technology

[0002] As an essential device for modern offices, classrooms, and home entertainment, projectors are widely used in scenarios such as conference presentations, education and training, and movie viewing. In different usage environments, users need to flexibly adjust the height, angle, and projection direction of the projector to obtain the best projection effect. In addition, with the increasing demand for projector portability, the stand structure that enables convenient storage and carrying has become a key factor in improving the user experience. Therefore, designing a projector stand with high adjustability and portability is of great practical significance.

[0003] However, traditional projector stands have shortcomings. On the one hand, some stands have a single adjustment method, making it difficult to achieve horizontal rotation and multi-angle tilt adjustment, which cannot meet the projection needs in complex scenarios. On the other hand, some adjustable stands have defects in structural stability, and are prone to wobbling after adjustment, affecting the stability of the projected image. In addition, traditional stands are mostly fixed structures, occupying a lot of space when not in use and are inconvenient to store. Especially in scenarios where the projector needs to be moved frequently, the poor portability of traditional stands is even more prominent. These defects limit the ease of use and application range of projectors. To address this, we propose a projector with a folding stand. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a projector with a folding stand, which solves the above-mentioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a projector with a folding stand, comprising:

[0006] The projector body and the base ring are provided. The bottom end of the projector body is provided with a connecting hinge, which is hinged to a rotating connector. The end of the rotating connector is inserted into the top of the fixed ring. The base ring is provided below the fixed ring. The top of the base ring is fixed with a fixing frame. A guide block is slidably installed inside the fixing frame. The guide block and the fixed ring are connected by a connecting rod.

[0007] A fixing component is provided on both sides of the guide block. The fixing component includes a limiting rod and a fixing spring. The limiting rod and the fixing spring are located inside both sides of the guide block, and the end of the limiting rod is provided with a limiting end.

[0008] Preferably, a connecting hinge is fixedly installed at the bottom of the projector body, the bottom of the connecting hinge is hinged to the top of the rotating connector via a pivot, a rotating cylinder is fixed at the top of the fixing ring, and the end of the rotating connector is inserted into the inside of the rotating cylinder and rotates within the rotating cylinder.

[0009] Preferably, the fixing ring is circular, and four hinge lugs symmetrical about the central axis are fixed on the outer cylindrical surface of the fixing ring. One end of the connecting rod is disposed inside the hinge lugs and rotates to engage with them. A positioning hole is provided at the center of the bottom end of the fixing ring.

[0010] Preferably, the top of the base ring is fixed with four centrally symmetrical fixing frames, the inside of the fixing frames is provided with guide cavities, the four fixing frames form a cross, and a positioning post is fixed at the center of the cross formed by the fixing frames. The positioning post is located at the center of the top of the base ring and is inserted into the positioning hole.

[0011] Preferably, the top end of the guide block is fixed with a second hinge lug, wherein the guide block is slidably installed in the guide cavity inside the fixed frame, and the second hinge lug at the top end of the guide block slides through the top end of the fixed frame for sliding engagement, and the other end of the connecting rod is disposed inside the second hinge lug and rotates for engagement.

[0012] Preferably, the fixing component consists of a limiting rod and a fixing spring. The end of the limiting rod is fixed with a limiting end head, and the fixing spring is sleeved on the cylindrical surface of the limiting rod. The guide block has fixing cavities on both sides, and the limiting rod and fixing spring are installed inside the fixing cavities. The limiting end head slides through the fixing cavity.

[0013] Preferably, the top of the base ring has four sets of central axis symmetrical limiting holes, and the limiting holes are distributed at multiple equal intervals. The limiting holes are located on both sides of the fixing frame, and the limiting end of the limiting rod is fixed and limited by the limiting holes.

[0014] Preferably, the front end of the fixing frame is provided with an auxiliary connecting hole extending into the interior, and the front end of the guide block is provided with a through auxiliary guide hole, wherein an auxiliary rod is set inside the auxiliary connecting hole and the guide block is slidably engaged through the auxiliary guide hole.

[0015] Compared with the prior art, this utility model provides a projector with a folding stand, which has the following advantages:

[0016] 1. This projector with a folding stand is hinged to a rotating connector at the bottom of the projector body via a hinge lug. Combined with a rotating cylinder at the top of the fixed ring, it allows for free horizontal rotation and adjustment of the projection direction. The guide block slides within the guide cavity of the fixed frame, driving the fixed ring via a connecting rod, thus precisely adjusting the height and angle of the projector body. The auxiliary connecting hole of the fixed frame and the auxiliary guide hole of the guide block, along with the auxiliary rod, ensure stable sliding and improve adjustment accuracy. In the fixed components on both sides of the guide block, the limiting rod and the fixing spring work together. After adjustment, the limiting end inserts into the limiting hole of the base ring under the elastic force of the fixing spring, firmly locking the stand structure and ensuring the projector's stability during use. When the projector is not in use, the guide block can be moved outwards to disengage the limiting end from the limiting hole, easily folding the fixed ring, connecting rod, and guide block. The positioning hole of the fixed ring and the positioning post of the base ring are inserted for positioning, making the stand structure compact, easy to store and carry, effectively saving space and improving product practicality and portability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0020] Figure 4 This is a schematic diagram of the structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the base structure of this utility model.

[0022] In the diagram: 1. Projector body; 2. Connecting hinge; 3. Rotary connector; 4. Fixing ring; 5. Connecting rod; 6. Guide block; 7. Limiting rod; 8. Fixing spring; 9. Limiting end; 10. Base ring; 11. Fixing frame; 12. Auxiliary rod; 13. Hinge 1; 14. Hinge 2; 15. Auxiliary guide hole; 16. Positioning hole; 17. Positioning post; 18. Auxiliary connecting hole; 19. Limiting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please seeFigures 1-5 A projector with a folding stand, comprising:

[0025] The projector body 1 and the base ring 10 are provided. The bottom end of the projector body 1 is provided with a connecting hinge 2, which is hinged to the rotating connector 3. The end of the rotating connector 3 is inserted into the top of the fixed ring 4. The base ring 10 is provided below the fixed ring 4. The top of the base ring 10 is fixed with a fixing frame 11. A guide block 6 is slidably installed inside the fixing frame 11. The guide block 6 and the fixed ring 4 are connected by a connecting rod 5.

[0026] The fixing components are arranged on both sides of the guide block 6. The fixing components include a limiting rod 7 and a fixing spring 8. The limiting rod 7 and the fixing spring 8 are arranged inside both sides of the guide block 6, and the end of the limiting rod 7 is provided with a limiting end 9.

[0027] Furthermore, a connecting hinge 2 is fixedly installed at the bottom of the projector body 1. The bottom of the connecting hinge 2 is hinged to the top of the rotating connector 3 through a rotating shaft. A rotating cylinder is fixed at the top of the fixing ring 4. The end of the rotating connector 3 is inserted into the inside of the rotating cylinder and rotates inside the rotating cylinder to realize the flexible rotation adjustment of the projector body 1 in the horizontal direction.

[0028] Furthermore, the fixing ring 4 is circular, and four hinges 13 symmetrical about the central axis are fixed on the outer cylindrical surface of the fixing ring 4. One end of the connecting rod 5 is set inside the hinge 13 and rotates to engage. A positioning hole 16 is opened at the center of the bottom end of the fixing ring 4. The positioning hole 16 at the bottom end provides a basis for positioning when folded and stored, enhancing the stability and storage capacity of the structure.

[0029] Furthermore, four centrally symmetrical fixing brackets 11 are fixed to the top of the base ring 10. The fixing brackets 11 have guide cavities inside. The four fixing brackets 11 form a cross, and a positioning post 17 is fixed at the center of the cross formed by the fixing brackets 11. The positioning post 17 is located at the center of the top of the base ring 10. The positioning post 17 is inserted into the positioning hole 16 to achieve precise positioning when folded, which is convenient for storage.

[0030] Furthermore, the top of the guide block 6 is fixed with a second hinge 14, wherein the guide block 6 is slidably installed in the guide cavity inside the fixed frame 11, and the second hinge 14 at the top of the guide block 6 slides through the top of the fixed frame 11. The other end of the connecting rod 5 is set inside the second hinge 14 and rotates to drive the fixed ring 4 to move up and down, thereby realizing the adjustment of the height and angle of the projector body 1.

[0031] Furthermore, the fixing component consists of a limiting rod 7 and a fixing spring 8. The end of the limiting rod 7 is fixed with a limiting end 9, and the fixing spring 8 is sleeved on the cylindrical surface of the limiting rod 7. Fixing cavities are opened inside both sides of the guide block 6. The limiting rod 7 and the fixing spring 8 are installed inside the fixing cavity, and the limiting end 9 slides through the fixing cavity to limit and fix the guide block 6, ensuring the stability of the bracket structure.

[0032] Furthermore, the top of the base ring 10 is provided with four sets of central axis symmetrical limiting holes 19, and the limiting holes 19 are distributed at multiple equal intervals. The limiting holes 19 are located on both sides of the fixing frame 11. The limiting end 9 at the end of the limiting rod 7 is fixed in place corresponding to the limiting holes 19, providing multiple fixed position options for the guide block 6 and enhancing the flexibility and stability of adjustment.

[0033] Furthermore, the front end of the fixing frame 11 is provided with an auxiliary connection hole 18 extending into the interior, and the front end of the guide block 6 is provided with a through auxiliary guide hole 15. An auxiliary rod 12 is set inside the auxiliary connection hole 18 and slides through the auxiliary guide hole 15 to provide auxiliary support for the sliding of the guide block 6 in the fixing frame 11, ensuring the stability and smoothness of the guide block 6 during the sliding process.

[0034] Structural Description:

[0035] Projector body 1: As the core component, it is used for projection imaging. Its bottom end is provided with a connecting hinge 2 to achieve hinge connection with the rotating connecting piece 3, providing a basis for adjusting the projection direction.

[0036] Connecting hinge 2: Fixed to the bottom of the projector body 1, it has an ear-shaped structure and is hinged to the rotating connector 3 through a rotating shaft. It is a key connecting component for realizing the horizontal rotation of the projector.

[0037] Rotary connector 3: The top is hinged to the connecting hinge lug 2, and the end is inserted into the rotating cylinder at the top of the fixing ring 4, so that the projector body 1 can be flexibly rotated and adjusted in the horizontal direction;

[0038] Fixed ring 4: Circular ring structure, with a hinge lug 13 on the outer cylindrical surface to connect the connecting rod 5, and a positioning hole 16 at the bottom end for folding positioning, which also has adjustment and storage functions;

[0039] Connecting rod 5: Both ends are rotatably engaged with hinge lug 13 of fixed ring 4 and hinge lug 24 of guide block 6, respectively, to transmit the movement of guide block 6 and adjust the height of projector;

[0040] Guide block 6: It is slidably installed in the guide cavity of the fixed frame 11, and the top hinge 14 is connected to the connecting rod 5. By sliding, it drives the fixed ring 4 to move, thereby realizing the adjustment of the projection angle.

[0041] Limiting rod 7: Located in the fixing cavity on both sides of the guide block 6, with a limiting end 9 at the end, which cooperates with the limiting hole 19 of the base ring 10 to fix the guide block 6 and ensure the stability of the bracket;

[0042] Fixed spring 8: Sleeve onto limit rod 7 to provide elastic force to limit end 9. After adjustment, push limit end 9 into limit hole 19 to lock bracket position;

[0043] Limiting end 9: Fixed to the end of the limiting rod 7, it is inserted into the limiting hole 19 of the base ring 10 under the action of the fixing spring 8 to achieve the limiting and fixing of the guide block 6;

[0044] Base ring 10: As the bottom support structure of the bracket, it is equipped with a fixing frame 11, positioning post 17 and limiting hole 19 at the top, providing stable support and multi-position adjustment;

[0045] Fixture 11: Four cross-shaped brackets are located at the top of the base ring 10. The internal guide cavity allows the guide block 6 to slide, and the front auxiliary connection hole 18 assists the movement of the guide block.

[0046] Auxiliary rod 12: Passes through the auxiliary connection hole 18 of the fixed frame 11 and the auxiliary guide hole 15 of the guide block 6, providing auxiliary support for the sliding of the guide block 6 and ensuring sliding stability;

[0047] Hinge 13: Four central axes are symmetrically fixed to the outer cylindrical surface of the fixed ring 4, used to rotate and connect the connecting rod 5 to realize the movable connection between components;

[0048] Hinge 2 14: Fixed to the top of guide block 6, passing through fixed frame 11 and rotating with connecting rod 5, transmitting the movement of guide block to adjust projection angle;

[0049] Auxiliary guide hole 15: It is opened at the front end of the guide block 6 and cooperates with the auxiliary connection hole 18 and auxiliary rod 12 of the fixing frame 11 to help the guide block 6 slide stably;

[0050] Positioning hole 16: Located at the center of the bottom end of the fixing ring 4, it is inserted and cooperates with the positioning post 17 of the base ring 10 to achieve precise positioning when folded and facilitate storage;

[0051] Positioning post 17: Fixed to the center of the top of the base ring 10, and cooperates with the positioning hole 16 of the fixing ring 4. It plays a positioning role when folded and stored, making the structure compact.

[0052] Auxiliary connection hole 18: It is opened at the front end of the fixed frame 11 and extends into the interior, and cooperates with the auxiliary rod 12 and the auxiliary guide hole 15 of the guide block 6 to slide the auxiliary guide block;

[0053] Limiting holes 19: Four sets of central axes are symmetrically distributed at the top of the base ring 10, which cooperate with the limiting end 9 to provide multiple fixed positions for the guide block 6 and enhance the adjustment flexibility.

[0054] Working Principle: When the projector with the folding stand is in operation, the projector body 1 is hinged to the rotating connector 3 via connecting hinge 2. The end of the rotating connector 3 is inserted into the rotating cylinder at the top of the fixed ring 4, allowing for horizontal rotation adjustment of the projector body 1. The fixed ring 4 is annular, with four centrally symmetrical hinges 13 on its outer cylindrical surface. These hinges are rotatably connected to the second hinge 14 at the top of the guide block 6 via connecting rod 5. The guide block 6 is slidably installed in the guide cavity inside the fixed frame 11. The auxiliary connecting hole 18 at the front end of the fixed frame 11 and the auxiliary guide hole 15 at the front end of the guide block 6 cooperate with the auxiliary rod 12 to allow the guide block 6 to slide stably within the fixed frame 11. When the height and angle of the projector body 1 need to be adjusted, the guide block 6 is pushed to slide within the fixed frame 11. The movement of the guide block 6 drives the fixed ring 4 through the connecting rod 5. Due to the rotational engagement between the fixed ring 4 and the rotating connector 3, the height of the projector body 1 can be adjusted. As the degree and angle change, the limiting rod 7 and the fixing spring 8 in the fixing component are set inside the guide block 6 on both sides. The limiting end 9 passes through the fixing cavity. The top of the base ring 10 has four sets of central axis symmetrical and equidistantly distributed limiting holes 19, located on both sides of the fixing frame 11. After adjusting to the appropriate position, under the elastic force of the fixing spring 8, the limiting end 9 is inserted into the corresponding limiting hole 19 to limit and fix the guide block 6, thereby stabilizing the entire bracket structure and ensuring that the projector body 1 is kept in the adjusted position. In addition, when the projector body 1 is not in use and needs to be folded and stored, the guide block 6 is moved outward inside the fixing frame 11, so that the limiting end 9 is disengaged from the limiting hole 19. The fixing ring 4, connecting rod 5 and guide block 6 and other components are folded and stored. The positioning hole 16 at the bottom center of the fixing ring 4 is inserted into the positioning post 17 at the top center of the base ring 10 to play a positioning role. The entire bracket structure becomes compact and easy to store and carry.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A projector with a folding stand, characterized in that, include: The projector body (1) and the base ring (10) are provided with a connecting hinge (2) at the bottom end of the projector body (1). The connecting hinge (2) is hinged to the rotating connector (3). The end of the rotating connector (3) is inserted into the top of the fixed ring (4). The base ring (10) is provided below the fixed ring (4). The top of the base ring (10) is fixed with a fixing frame (11). A guide block (6) is slidably installed inside the fixing frame (11). The guide block (6) and the fixed ring (4) are connected by a connecting rod (5). The fixing components are provided on both sides of the guide block (6). The fixing components include a limiting rod (7) and a fixing spring (8). The limiting rod (7) and the fixing spring (8) are provided inside both sides of the guide block (6), and the end of the limiting rod (7) is provided with a limiting end (9).

2. A projector with a folding stand according to claim 1, characterized in that, The bottom of the projector body (1) is fixedly installed with a connecting hinge (2). The bottom of the connecting hinge (2) is hinged to the top of the rotating connector (3) through a rotating shaft. The top of the fixed ring (4) is fixed with a rotating cylinder. The end of the rotating connector (3) is inserted into the inside of the rotating cylinder and rotates inside the rotating cylinder.

3. A projector with a folding stand according to claim 2, characterized in that, The fixing ring (4) is circular. Four hinges (13) with central axis symmetry are fixed on the outer cylindrical surface of the fixing ring (4). One end of the connecting rod (5) is set inside the hinge (13) and rotates to engage. A positioning hole (16) is opened at the center of the bottom end of the fixing ring (4).

4. A projector with a folding stand according to claim 1, characterized in that, The top of the base ring (10) is fixed with four central axis symmetrical fixing brackets (11). The fixing brackets (11) have guide cavities inside. The four fixing brackets (11) form a cross, and a positioning post (17) is fixed at the center of the cross formed by the fixing brackets (11). The positioning post (17) is located at the center of the top of the base ring (10), and the positioning post (17) is inserted into the positioning hole (16).

5. A projector with a folding stand according to claim 4, characterized in that, The top end of the guide block (6) is fixed with hinge ear 2 (14), wherein the guide block (6) is slidably installed in the guide cavity inside the fixed frame (11), and the hinge ear 2 (14) at the top end of the guide block (6) slides through the top end of the fixed frame (11) for sliding engagement, and the other end of the connecting rod (5) is set inside the hinge ear 2 (14) and rotates for engagement.

6. A projector with a folding stand according to claim 1, characterized in that, The fixing component consists of a limiting rod (7) and a fixing spring (8). The end of the limiting rod (7) is fixed with a limiting end (9), and the fixing spring (8) is sleeved on the cylindrical surface of the limiting rod (7). The guide block (6) has fixing cavities on both sides. The limiting rod (7) and the fixing spring (8) are installed inside the fixing cavities, and the limiting end (9) slides through the fixing cavity.

7. A projector with a folding stand according to claim 6, characterized in that, The base ring (10) has four sets of central axis symmetrical limiting holes (19) at its top end, and the limiting holes (19) are distributed at multiple equal intervals. The limiting holes (19) are located on both sides of the fixing frame (11), and the limiting end (9) at the end of the limiting rod (7) is fixed to the limiting hole (19).

8. A projector with a folding stand according to claim 7, characterized in that, The front end of the fixing frame (11) is provided with an auxiliary connection hole (18) extending into the interior, and the front end of the guide block (6) is provided with a through auxiliary guide hole (15). An auxiliary rod (12) is set inside the auxiliary connection hole (18), and the guide block (6) is slidably engaged through the auxiliary guide hole (15).

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