Portable projection device with vertical support effect

Abstract

The utility model discloses a portable projection device with perpendicular support effect relates to projection support technical field, be equipped with the first support rod, the first support rod is equipped with the second support rod, and the second support rod is equipped with the third support rod, and the first support rod one side is equipped with the through groove, and the inner ring surface of through groove is equipped with the adjusting assembly, and the adjusting assembly includes the pivot that rotates and connects in the inside of through groove, and the inner ring surface of through groove is equipped with the limiting slot, and the surface fixed mounting of pivot is equipped with the limiting rod, and the one side of second support rod is equipped with the preburied groove, and the bottom fixed mounting of preburied groove inside is equipped with the toothed plate, and the limiting rod of pivot surface is removed the limiting slot of through groove inside through the pull of the setting carousel, and the carousel is rotated again, and the limiting rod of pivot surface is removed the limiting slot of through groove inside through the pull of the setting carousel, and the carousel is rotated again, and the second support rod inside the gear rotation of pivot is interacted with the toothed plate of second support rod inside to make the second support rod inside the first support rod extension or contraction, thereby can the height of support of quick adjustment, avoids the injury of the finger of user.

Description

Technical Field

[0001] This utility model relates to the field of projection support technology, specifically a portable projection device with vertical support effect. Background Technology

[0002] Projectors, as devices that project images or videos onto a screen, are widely used in homes, offices, schools, and entertainment venues. With the increasing demand for diverse projector usage scenarios, portable projection devices are gaining popularity.

[0003] However, existing portable projection devices have some shortcomings in terms of vertical support. For example, some portable projection devices rely solely on a simple flat base for support, making them difficult to place stably on uneven surfaces and prone to tipping over, thus affecting the projection effect. Others, while having height-adjustable support structures, mostly use a combination of buttons and springs, which may cause finger pinching when pressing the buttons. To address these issues, a portable projection device with vertical support is proposed to solve these problems. Utility Model Content

[0004] In order to solve the above problems, the purpose of this utility model is to provide a portable projection device with vertical support effect.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a portable projection device with vertical support effect, including a fixed plate, a plurality of first connecting frames are fixedly installed on the arc surface of the fixed plate, a first support rod is rotatably connected inside the first connecting frame, a second support rod is slidably connected inside the first support rod, a through groove is opened on one side of the first support rod, and an adjustment component is provided on the inner ring surface of the through groove;

[0006] The adjustment assembly includes a rotating shaft rotatably connected inside the through groove. A limit groove is formed on the inner annular surface of the through groove. A limit rod is fixedly installed on the surface of the rotating shaft. A pre-embedded groove is formed on one side of the second support rod. A toothed plate is fixedly installed at the bottom of the pre-embedded groove. A gear is fixedly installed on the side of the rotating shaft facing the pre-embedded groove. A turntable is fixedly installed on the other side of the rotating shaft.

[0007] Preferably, a vertical pole is fixedly installed at the center of the bottom end of the fixed plate, and three sliding grooves are formed on the surface of the vertical pole. A second connecting frame is slidably connected inside the sliding grooves. A third connecting frame is fixedly installed at the center of the first support rod facing the vertical pole, and a connecting rod is provided between the second connecting frame and the third connecting frame.

[0008] Preferably, a fixing frame is rotatably connected to the top of the fixing plate, and a plurality of grooves are formed on the bottom surface of the fixing frame. A spring assembly is fixedly installed at the top of the groove, and a slider is elastically connected to the inside of the groove through the spring assembly. A plug is fixedly installed at the bottom of the slider.

[0009] Preferably, the surface of the fixing plate has a plurality of slots that are adapted to the insert block.

[0010] Preferably, the bottom end of the insert and the slot are semi-circular.

[0011] Preferably, the bottom end of the second support rod is provided with an anti-slip pad.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By pulling the set turntable, the limiting rod on the surface of the rotating shaft moves out of the limiting groove inside the through groove. Then, rotating the turntable causes the rotating shaft to rotate with the gear, which interacts with the toothed plate inside the second support rod. This causes the second support rod to extend or retract inside the first support rod, thereby quickly adjusting the height of the bracket and avoiding pinching the user's fingers. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a partial structural cross-sectional view of the adjustment component in this utility model;

[0018] Figure 4 This is a partial structural cross-sectional view of the fixing frame in this utility model.

[0019] In the diagram: 1. Fixed plate; 101. Slot; 2. First connecting frame; 3. First support rod; 301. Rotating shaft; 302. Limiting rod; 303. Gear; 304. Turntable; 4. Second support rod; 402. Embedded groove; 403. Tooth plate; 5. Upright rod; 501. Slide groove; 502. Second connecting frame; 6. Connecting rod; 7. Fixed frame; 701. Groove; 702. Spring assembly; 703. Slider; 704. Insert block; 8. Third connecting frame. Detailed Implementation

[0020] 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.

[0021] Example: Figures 1-4 As shown, this utility model provides a portable projection device with vertical support effect, including a fixed plate 1. Several first connecting frames 2 are fixedly installed on the arc-shaped surface of the fixed plate 1. First support rods 3 are rotatably connected inside the first connecting frames 2. The first support rods 3 can be adjusted by fixed-point rotation through the first connecting frames 2. Second support rods 4 are slidably connected inside the first support rods 3. The bottom end of the second support rods 4 is provided with an anti-slip pad, which can effectively enhance the support stability of the second support rods 4. A through groove is opened on one side of the first support rods 3, and an adjustment component is provided on the inner ring surface of the through groove.

[0022] The adjustment assembly includes a rotating shaft 301 rotatably connected inside a through groove. A limiting groove is formed on the inner annular surface of the through groove. A limiting rod 302 is fixedly installed on the surface of the rotating shaft 301. When it is necessary to extend or retract the second support rod 4 from the interior of the first support rod 3, the turntable 304 is pulled to allow the limiting rod 302 on the surface of the rotating shaft 301 to be pulled out from the limiting groove on the inner annular surface of the through groove. A pre-embedded groove 402 is formed on one side of the second support rod 4. A toothed plate 403 is fixedly installed at the bottom end of the pre-embedded groove 402. The rotating shaft 301 faces the pre-embedded groove 402. A gear 303 is fixedly installed on one side, and a turntable 304 is fixedly installed on the other side of the rotating shaft 301. After the limiting rod 302 is pulled out from the limiting groove, the turntable 304 is rotated so that the rotating shaft 301, along with the gear 303, rotates and interacts with the toothed plate 403 on one side of the second support rod 4, thereby allowing the second support rod 4 to move inside the first support rod 3. After the adjustment is completed, the turntable 304 is pushed so that the limiting rod 302 on the surface of the rotating shaft 301 is once again inserted into the limiting groove on the inner annular surface of the through groove to complete the limiting fixation.

[0023] A pole 5 is fixedly installed at the center of the bottom of the fixed plate 1. Three grooves 501 are opened on the surface of the pole 5. A second connecting frame 502 is slidably connected inside the grooves 501. A third connecting frame 8 is fixedly installed at the center of the first support rod 3 facing the pole 5. A connecting rod 6 is provided between the second connecting frame 502 and the third connecting frame 8.

[0024] By adopting the above technical solution, the tilt angle of the connecting rod 6 can be changed by sliding the second connecting frame 502, thereby quickly opening the first support rod 3.

[0025] The top of the fixed plate 1 is rotatably connected to the fixed frame 7. The bottom surface of the fixed frame 7 has several grooves 701. The top of the groove 701 is fixedly installed with a spring assembly 702. The inside of the groove 701 is elastically connected to the slider 703 through the spring assembly 702. The bottom of the slider 703 is fixedly installed with an insert 704. The surface of the fixed plate 1 has several slots 101 that are adapted to the insert 704. The bottom of the insert 704 and the slot 101 are semi-circular.

[0026] By adopting the above technical solution, when the projector is rotated and adjusted, the bottom surface of the insert 704 and the arc surface of the slot 101 are pressed against each other, so that the insert 704 retracts toward the inside of the groove 701. During the retraction process, the spring assembly 702 is pressed. After the fixing frame 7 is adjusted, the insert 704 and the slot 101 are in a perpendicular state. Under the elastic force of the spring assembly 702, the insert 704 is pushed into the inside of the slot 101.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A portable projection device with vertical support effect, comprising a fixed plate (1), characterized in that: The arc-shaped surface of the fixed plate (1) is fixedly installed with several first connecting frames (2). The first connecting frame (2) is rotatably connected to a first support rod (3). The first support rod (3) is slidably connected to a second support rod (4). A through groove is opened on one side of the first support rod (3). An adjustment component is provided on the inner ring surface of the through groove. The adjustment assembly includes a rotating shaft (301) rotatably connected inside the through groove. A limit groove is opened on the inner annular surface of the through groove. A limit rod (302) is fixedly installed on the surface of the rotating shaft (301). A pre-embedded groove (402) is opened on one side of the second support rod (4). A toothed plate (403) is fixedly installed at the bottom of the pre-embedded groove (402). A gear (303) is fixedly installed on the side of the rotating shaft (301) facing the pre-embedded groove (402). A turntable (304) is fixedly installed on the other side of the rotating shaft (301).

2. The portable projection device with vertical support effect as described in claim 1, characterized in that, A pole (5) is fixedly installed at the center of the bottom of the fixed plate (1). Three grooves (501) are opened on the surface of the pole (5). A second connecting frame (502) is slidably connected inside the groove (501). A third connecting frame (8) is fixedly installed at the center of the first support rod (3) facing the pole (5). A connecting rod (6) is provided between the second connecting frame (502) and the third connecting frame (8).

3. A portable projection device with vertical support effect as described in claim 2, characterized in that, The top of the fixed plate (1) is rotatably connected to a fixed frame (7). The bottom surface of the fixed frame (7) is provided with several grooves (701). A spring assembly (702) is fixedly installed at the top of the groove (701). A slider (703) is elastically connected to the inside of the groove (701) through the spring assembly (702). A plug (704) is fixedly installed at the bottom of the slider (703).

4. A portable projection device with vertical support effect as described in claim 3, characterized in that, The surface of the fixed plate (1) is provided with a number of slots (101) that are compatible with the insert block (704).

5. A portable projection device with vertical support effect as described in claim 4, characterized in that, The bottom end of the insert (704) and the slot (101) are semi-circular.

6. A portable projection device with vertical support effect as described in claim 1, characterized in that, The bottom end of the second support rod (4) is provided with an anti-slip pad.

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