Image projection device

Abstract

The utility model relates to the technical field of projection, in particular to an image projection device which comprises a base frame, and limiting grooves are formed in the two sides of the inner wall of the base frame. The nodding type adjusting assembly is arranged at the top end of the base frame; and the top end of the nodding type adjusting assembly is provided with the head shaking type adjusting assembly. According to the utility model, the mounting base frame, the nodding type adjusting assembly and the formed limiting groove are matched for use, so that the vertical adjustment of the projection direction of the projector body can be realized, and watching groups with different heights can keep a head-up posture to watch the projection content. By installing the head shaking type adjusting assembly, transverse direction adjustment of projection of the projector body can be achieved, position fixation can be achieved after adjustment, deviation caused by the influence of external force is not likely to happen, the projector can be used in different scenes, the projector is not affected by blocking of foreign objects, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of projection, in particular to an image projection device. Background Art

[0002] Image projection is a technology that projects images or videos onto a screen or other flat surface through optical technology. Image projection is widely used. In the business field, it is often used in conference rooms, exhibitions, lectures and other occasions to display reports, product introductions, publicity and other content. In the field of education, image projection technology is also widely used in classrooms to provide intuitive and vivid teaching content. In addition, image projection technology is also used for home entertainment, such as home theater systems, so that viewers can enjoy the big-screen film and television experience at home. The use of image projection provides a convenient and intuitive display method for various fields, greatly enriching people's visual experience and information transmission methods.

[0003] At present, it is inconvenient to adjust the vertical orientation of the projection according to the requirements of ordinary image projection devices on the market. In actual use, if the height of the placement stand is not appropriate, it will cause the user to lower or raise the head for a long time when watching, which reduces the user experience. In addition, it is inconvenient to fix the position after the ordinary projection device is rotated horizontally, which causes the projection device to easily deviate from the direction after being shaken by external force, thereby affecting the user's normal viewing.

[0004] To this end, we propose an image projection device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an image projection device to solve the problems in the above background technology that it is inconvenient to adjust the vertical orientation of the projection as required, and it is inconvenient to fix the position after the ordinary projection device is rotated horizontally.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an image projection device, comprising a base frame, wherein both sides of the inner wall of the base frame are provided with limiting grooves;

[0007] A nodding adjustment component is provided at the top of the base frame, and the nodding adjustment component includes a load-bearing rotating plate, and one side of the load-bearing rotating plate is rotatably connected to one side of the top of the base frame through a bearing;

[0008] A shaking head type adjustment component is provided on the top of the nodding type adjustment component.

[0009] Preferably, a worm wheel is fixed on the other side of the load-bearing rotating plate, and a worm is meshed with one side of the worm wheel, one end of the worm slides through the top side of the base frame and a knob is fixed thereon, support rods are fixed on both sides of the bottom end of the load-bearing rotating plate, and a sliding rod is fixed to one side of the bottom end of the support rod.

[0010] Preferably, the slide bar is matched with the limiting groove, the slide bar slides inside the limiting groove, the limiting groove is opened in an arc shape, and the arc of the limiting groove is the same as the rotation trajectory of the slide bar.

[0011] Preferably, the shaking head adjustment assembly includes a fixed plate, and the bottom end of the fixed plate is fixedly connected to the top end of the load-bearing rotating plate, and the fixed plate is provided with slots around it, and a supporting turntable is rotatably arranged in the middle of the top end of the fixed plate through a bearing seat, and a threaded sliding bolt is inserted into one end of the supporting turntable, and a clamping block is rotatably sleeved on the outer surface of the bottom end of the clamping bolt, and a placement groove is provided at one end of the supporting turntable directly above the clamping block.

[0012] Preferably, there are multiple groups of card slots, and the multiple groups of card slots are equidistantly distributed around the top of the fixed disk in a circular axis array. The size of the card slots is consistent with the size of the card block and the placement slot, and the height of the card block is greater than the spacing distance between the fixed disk and the supporting turntable.

[0013] Preferably, a baffle frame is fixed to the top of the supporting turntable, and a plurality of sets of ventilation slots evenly and equidistantly distributed are formed on the surface of the baffle frame. The middle of the top of the supporting turntable is located inside the baffle frame and is fixedly connected to the projector body by external screws.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the utility model;

[0015] By installing the base frame, the nodding adjustment component and the limit slots, the vertical adjustment of the projection direction of the projector body can be achieved. The user can adjust the angle of the support frame according to the position of the projector and the inclination of the projection surface to ensure the horizontality and alignment of the projected image. It can be used no matter how high the support frame or desktop is placed on, without the need for additional objects to raise it, effectively preventing image deformation. Viewers of different heights can maintain a level posture to watch the projected content, which increases the applicability of the device and enhances the user experience.

[0016] By installing a shaking head adjustment component, the lateral position of the projector body can be adjusted, and the position can be fixed after further adjustment. It is not easily shifted by external forces, ensuring smooth viewing and improving user experience. The projector body will not swing at will when the vertical position is not horizontal, which enhances the stability of the projection. The adjustable lateral position also means that the projector body does not need to be placed in the center when placed, which can meet the needs of different scenarios, is not affected by external objects, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the structural nodding adjustment component of the utility model;

[0020] Figure 3 The structure of the utility model Figure 2 A is an enlarged three-dimensional schematic diagram of the middle part;

[0021] Figure 4 It is an exploded three-dimensional schematic diagram of the structural shaking head type adjustment component of the utility model;

[0022] Figure 5 It is a partial cross-sectional stereoscopic schematic diagram of the structural shaking head type adjustment component of the utility model.

[0023] In the figure: 1. base frame; 2. limit slot; 3. nodding adjustment assembly; 31. load-bearing turntable; 32. worm gear; 33. worm; 34. knob; 35. bracket rod; 36. slide rod; 4. shaking head adjustment assembly; 41. fixing plate; 42. slot; 43. supporting turntable; 44. push bolt; 45. block; 46. placement slot; 5. baffle frame; 6. projector body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides an embodiment: an image projection device, comprising a base frame 1, and limiting grooves 2 are provided on both sides of the inner wall of the base frame 1;

[0026] A nodding adjustment component 3 is provided at the top of the base frame 1. The nodding adjustment component 3 includes a load-bearing rotating plate 31, and one side of the load-bearing rotating plate 31 is rotatably connected to one side of the top of the base frame 1 through a bearing;

[0027] A shaking head type adjustment component 4 is arranged on the top of the nodding type adjustment component 3 .

[0028] Furthermore, a worm wheel 32 is fixed to the other side of the load-bearing rotating plate 31, and a worm 33 is meshed with one side of the worm wheel 32. One end of the worm 33 slides through the top side of the base frame 1 and a knob 34 is fixed thereto. Support rods 35 are fixed to both sides of the bottom end of the load-bearing rotating plate 31, and a slide rod 36 is fixed to one side of the bottom end of the support rod 35. Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, it is convenient to vertically adjust the projection orientation of the projector body 6 to meet the projection requirements at different heights.

[0029] Further, the slide bar 36 is adapted to the limit groove 2, and the slide bar 36 slides inside the limit groove 2. The limit groove 2 is formed in an arc shape, and the arc of the limit groove 2 is the same as the rotation trajectory of the slide bar 36. Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, the load-bearing rotating plate 31 is more stable when rotating and is not easy to fall off or deviate.

[0030] Furthermore, the shaking adjustment component 4 includes a fixed plate 41, and the bottom end of the fixed plate 41 is fixedly connected to the top of the load-bearing rotating plate 31, and a card slot 42 is opened around the fixed plate 41. A supporting rotating plate 43 is rotatably arranged in the middle of the top of the fixed plate 41 through a bearing seat, and a threaded sliding insertion bolt 44 is inserted at one end of the supporting rotating plate 43, and a card block 45 is rotatably sleeved on the outer surface of the bottom end of the card block 44, and a placement groove 46 is opened at one end of the supporting rotating plate 43, which is located directly above the card block 45. Figure 1 , Attachment Figure 4 and attached Figure 5As shown, it is convenient to adjust the projection orientation of the projector body 6 horizontally to meet the projection requirements of different positions.

[0031] Furthermore, the card slots 42 are provided with multiple groups, and the multiple groups of card slots 42 are evenly distributed around the top of the fixed plate 41 in a circular axis array. The size of the card slots 42 is consistent with the size of the card block 45 and the placement slot 46. The height of the card block 45 is greater than the distance between the fixed plate 41 and the supporting turntable 43. Figure 4 and attached Figure 5 As shown, it is convenient to fix the projector body 6 after adjusting multiple angles, so that the angle rotation has many adjustable gears and more choices. At the same time, the block 45 can only slide along the placement groove 46 and the inside of the card groove 42 under the rotation of the push bolt 44, and will not rotate with the push bolt 44.

[0032] Furthermore, a baffle frame 5 is fixed to the top of the supporting turntable 43, and a plurality of evenly spaced ventilation slots are formed on the surface of the baffle frame 5. The middle of the top of the supporting turntable 43 is located inside the baffle frame 5 and is fixedly connected to the projector body 6 by external screws. Figure 1 As shown, the projector body 6 is not easy to slip off and fall off, and the ventilation slots can effectively prevent the heat dissipation of the projector body 6 from being affected when it is working.

[0033] Working principle: When in use, first place the base frame 1 in a suitable position, and then fix the projector body 6 to the top of the supporting turntable 43 with external screws, and then connect the mains power to power the projector body 6. The user can adjust the projection direction of the projector body 6 according to the projection image of the projector body 6. The user can first turn the knob 34, the knob 34 drives the worm 33 to rotate, the worm 33 drives the worm gear 32 to engage and rotate, the worm gear 32 drives the load-bearing rotating plate 31 to rotate, the load-bearing rotating plate 31 drives the bracket rod 35 to rotate, and the bracket rod 35 drives the sliding rod 36 to slide along the inside of the limit groove 2, so that the load-bearing rotating plate 31 rotates more smoothly, and stop turning the knob 34 after the vertical projection direction of the projector body 6 reaches the required position.

[0034] Then, the push-in bolt 44 is rotated, and as the push-in bolt 44 is unscrewed along the internal thread of the supporting turntable 43, the push-in bolt 44 drives the block 45 to move up, and after the block 45 is fully inserted into the placement groove 46, the supporting turntable 43 is rotated, and the supporting turntable 43 drives the projector body 6 to rotate, and after the lateral projection direction of the projector body 6 is turned to a suitable position, the push-in bolt 44 is reversely screwed, so that the block 45 moves down to one group of the card slots 42 and is locked and fixed, and finally the projector body 6 is turned on for projection, which is an existing mature technology and will not be described in detail here, and the baffle frame 5 can provide simple protection for the projector body 6. The above is the entire working principle of the utility model.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An image projection device, comprising a base frame (1), characterized in that: Limiting grooves (2) are provided on both sides of the inner wall of the base frame (1); A nodding adjustment component (3), wherein the top end of the base frame (1) is provided with a nodding adjustment component (3), wherein the nodding adjustment component (3) comprises a load-bearing rotating plate (31), and one side of the load-bearing rotating plate (31) is rotatably connected to one side of the top end of the base frame (1) via a bearing; A shaking head type adjustment component (4), wherein the top end of the nodding head type adjustment component (3) is provided with a shaking head type adjustment component (4).

2. An image projection device according to claim 1, characterized in that: A worm wheel (32) is fixed to the other side of the load-bearing rotating plate (31), and a worm (33) is meshedly arranged on one side of the worm wheel (32), one end of the worm (33) slides through the top side of the base frame (1) and a knob (34) is fixed thereto, support rods (35) are fixed to both sides of the bottom end of the load-bearing rotating plate (31), and a sliding rod (36) is fixed to one side of the bottom end of the support rod (35).

3. An image projection device according to claim 2, characterized in that: The slide bar (36) is matched with the limiting groove (2), and the slide bar (36) slides inside the limiting groove (2). The limiting groove (2) is opened in an arc shape, and the arc of the limiting groove (2) is the same as the rotation trajectory of the slide bar (36).

4. The image projection device according to claim 1, characterized in that: The shaking head adjustment component (4) comprises a fixed plate (41), and the bottom end of the fixed plate (41) is fixedly connected to the top end of the load-bearing rotating plate (31), and the fixed plate (41) is provided with a clamping groove (42) around it. A supporting rotating plate (43) is rotatably arranged in the middle of the top end of the fixed plate (41) through a bearing seat, and a threaded sliding insertion bolt (44) is provided at one end of the supporting rotating plate (43), and a clamping block (45) is rotatably sleeved on the outer surface of the bottom end of the clamping bolt (44), and a placement groove (46) is provided at one end of the supporting rotating plate (43) directly above the clamping block (45).

5. An image projection device according to claim 4, characterized in that: The card slots (42) are provided in a plurality of groups, and the plurality of card slots (42) are evenly distributed around the top of the fixed disk (41) in a circular axis array manner. The size of the card slots (42) is consistent with the size of the card block (45) and the placement slot (46), and the height of the card block (45) is greater than the spacing distance between the fixed disk (41) and the supporting rotating disk (43).

6. The image projection device according to claim 4, characterized in that: A baffle frame (5) is fixed to the top of the supporting turntable (43), and a plurality of groups of ventilation slots evenly and equidistantly distributed are provided on the surface of the baffle frame (5). The middle of the top of the supporting turntable (43) is located inside the baffle frame (5) and is fixedly connected to the projector body (6) by external screws.

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