Digital media design work projection display device
By setting a pulling structure and a fixed structure on the bracket of the projection display device of the digital media design work, adjusting the pulling structure to pull the counterweight rod at the bottom of the projection screen, and fixing the pulling structure through the fixed structure, the problem of poor stability of the existing device is solved and a more stable projection display effect is achieved.
Patent Information
- Application Number
- CN202421420327.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing digital media design projection display device has poor stability and effect when used, especially when it is affected by airflow outdoors, which can easily shake, affect the display effect.
A projection display device including a bracket, a winding structure, a projection screen and a pulling structure is designed. By setting a pulling structure and a fixing structure on the bracket, the position of the pulling structure is adjusted so that it pulls down the counterweight rod at the bottom of the projection curtain, and fixes the pulling structure through the fixed structure, so as to maintain the straightening state of the projection curtain and prevent shaking.
It effectively improves the stability of the projection screen, avoids jitter caused by external airflow, and ensures that the projection display effect of digital media design works is more stable.
Smart Images
Figure CN222653247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of projection display of digital media design works, in particular to a projection display device for digital media design works. Background Art
[0002] In digital media design work, design effects often need to be publicly displayed. In order to facilitate the display of digital media design works, a digital media design work projection display device, that is, a projection screen structure, is needed. It is used in conjunction with a projector, and the projector projects the image onto the projection display device for display.
[0003] Existing digital media design work projection display devices usually consist of a bracket, a retractable structure and a screen. However, when in use, when the screen is lowered, its bottom is only lowered by a counterweight rod, and the stability effect is poor. If used outdoors, it will be blown by the outdoor air flow, causing the screen to shake, thereby affecting the projection display effect of the digital media design work. In view of this, we propose a digital media design work projection display device. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology, meet the actual needs, and provide a digital media design work projection display device to solve the technical problem of poor stability of the current digital media design work projection display device.
[0005] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is as follows: a digital media design work projection display device is designed, comprising a bracket and a projection screen, wherein a retracting structure for reeling in and out the projection screen is arranged on the top front of the bracket, the projection screen is wound in the retracting structure, and a counterweight rod is arranged at the bottom of the retracting structure through which the projection screen passes;
[0006] Pulling structures are slidably arranged on both sides of the bottom of the front side of the bracket, the two groups of pulling structures on the bracket are symmetrically arranged, and a fixed structure is arranged on one side of the pulling structure;
[0007] The pulling structure includes a mounting block, which is slidably arranged on the bracket. A clamping plate is arranged on the top of the mounting block via a spring, and the clamping plate and the mounting block are combined into an L shape.
[0008] Preferably, a sliding groove corresponding to the mounting block is arranged on the front of the bracket, and a slider is slidably arranged inside the sliding groove, and the slider is fixedly connected to the mounting block.
[0009] Preferably, the chute and the slider are both T-shaped, and the sizes of the chute and the slider match.
[0010] Preferably, a limiting rod is arranged at the bottom of the clamping plate, a through hole corresponding to the limiting rod is arranged at the top of the mounting block, and the diameter of the through hole is the same as that of the limiting rod, and the limiting rod passes through the mounting block.
[0011] Preferably, the fixing structure includes a welding block, a fixing bolt and a fixing screw hole. The welding block is arranged on one side of the mounting block. The fixing bolt is screwed onto the welding block through a threaded structure. Several groups of fixing screw holes are equidistantly arranged on the front of the bracket, and the fixing screw holes correspond to the fixing bolts.
[0012] Preferably, an arc opening is arranged on the front side of the bottom of the clamping plate, and the diameter of the arc opening is the same as the diameter of the counterweight rod.
[0013] Preferably, a buckle groove is arranged on the top of the card plate, and the buckle groove is L-shaped.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. The utility model is provided with a pulling structure and a fixing structure on the front side of the bracket. When the projection screen is lowered, the position of the pulling structure can be adjusted so that the pulling structure pulls down the counterweight rod at the bottom of the projection screen, and then the pulling structure is fixed by the fixing structure, so that the projection screen remains in a straight state, avoiding the projection screen from shaking due to the influence of external airflow, thereby ensuring the stability of the projection screen in projecting digital media design works. Therefore, the utility model has the advantage of a more stable projection display effect of the projection screen for digital media design works.
[0016] 2. The pulling structure of the utility model is composed of a mounting block, a spring, a card plate and other structures. When the counterweight rod at the bottom of the projection screen is pulled down, the card plate can be pulled. At this time, the spring is in a stretched state. Then the counterweight rod is placed under the card plate. Under the action of the spring reset, the card plate is pulled back to its original position, so that the card plate is engaged with the counterweight rod and a downward pulling force is applied to the counterweight rod at all times, thereby achieving a better effect of pulling down and straightening the projection screen, and ensuring the stability of the tension of the projection screen during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is an enlarged structural diagram of point A of the present utility model;
[0019] Figure 3 This is a schematic structural diagram of the pulling structure of the utility model;
[0020] Figure 4 This is a schematic diagram of the support structure of the utility model;
[0021] Figure 5 This is an enlarged structural diagram of point B of the present invention.
[0022] In the figure: 1. Bracket; 101. Slide groove; 102. Slider; 2. Retracting structure; 3. Projection screen; 301. Counterweight rod; 4. Pulling structure; 401. Mounting block; 402. Spring; 403. Clamping plate; 404. Limiting rod; 405. Through hole; 406. Arc opening; 407. Buckle groove; 5. Fixing structure; 501. Welding block; 502. Fixing bolt; 503. Fixing screw hole. DETAILED DESCRIPTION
[0023] The present invention is further described below with reference to the accompanying drawings and embodiments:
[0024] Example: Digital media design works projection display device, see Figures 1 to 5 , including a bracket 1 and a projection screen 3. A retracting structure 2 for reeling in and unreeling the projection screen 3 is arranged on the top front of the bracket 1. The projection screen 3 is wound in the retracting structure 2. A counterweight rod 301 is arranged at the bottom of the retracting structure 2 through which the projection screen 3 passes. When projecting and displaying digital media design works, the projection screen 3 can be lowered through the retracting structure 2, and then the works can be projected onto the projection screen 3 for display.
[0025] In a specific embodiment, pulling structures 4 are slidingly arranged on both sides of the bottom of the front side of the bracket 1. The two groups of pulling structures 4 on the bracket 1 are symmetrically arranged, and a fixing structure 5 is arranged on one side of the pulling structure 4. When the projection screen 3 is lowered, the position of the pulling structure 4 can be slid to make the pulling structure 4 pull down the counterweight rod 301 at the bottom of the projection screen 3, and then the pulling structure 4 is fixed by the fixing structure 5, so that the projection screen 3 remains in a straight state, avoiding the projection screen 3 from shaking due to the influence of external airflow, thereby ensuring the stability of the projection screen 3 in projecting and displaying digital media design works.
[0026] Specifically, a slide groove 101 corresponding to the mounting block 401 is arranged on the front of the bracket 1, and a slider 102 is slidingly arranged inside the slide groove 101. The slider 102 is fixedly connected to the mounting block 401. With the cooperation of the slide groove 101 and the slider 102, the sliding installation of the pulling structure 4 can be realized.
[0027] Furthermore, the slide groove 101 and the slider 102 are both T-shaped, and the sizes of the slide groove 101 and the slider 102 match. The cooperation between the T-shaped slide groove 101 and the slider 102 can ensure that the slider 102 slides stably inside the slide groove 101.
[0028] Furthermore, the fixing structure 5 includes a welding block 501, a fixing bolt 502 and a fixing screw hole 503. The welding block 501 is arranged on one side of the mounting block 401, and the fixing bolt 502 is screwed onto the welding block 501 through a threaded structure. Several groups of fixing screw holes 503 are equidistantly arranged on the front of the bracket 1, and the fixing screw holes 503 correspond to the fixing bolts 502. When the fixing structure 5 is moved to a suitable position, the fixing bolts 502 can be screwed into the corresponding fixing screw holes 503, thereby fixing the fixing structure 5.
[0029] In the present invention, the pulling structure 4 includes a mounting block 401, which is slidably arranged on the bracket 1. A card plate 403 is arranged on the top of the mounting block 401 through a spring 402. The card plate 403 and the mounting block 401 are combined into an L shape. When the counterweight rod 301 at the bottom of the projection screen 3 is pulled down, the card plate 403 can be pulled. At this time, the spring 402 is in a stretched state. Then the counterweight rod 301 is placed under the card plate 403. Under the reset action of the spring 402, the card plate 403 is pulled back, so that the card plate 403 is engaged with the counterweight rod 301 and a downward pulling force is applied to the counterweight rod 301 at all times, thereby better pulling down and straightening the projection screen 3, and ensuring the stability of the projection screen 3 during use.
[0030] Specifically, a limiting rod 404 is arranged at the bottom of the card plate 403, and a through hole 405 corresponding to the limiting rod 404 is arranged on the top of the mounting block 401, and the diameter of the through hole 405 is the same as the diameter of the limiting rod 404. The limiting rod 404 passes through the mounting block 401, and the limiting rod 404 is used to limit the card plate 403 to ensure the vertical displacement of the card plate 403.
[0031] Furthermore, an arcuate opening 406 is arranged on the front side of the bottom of the clamping plate 403, and the diameter of the arcuate opening 406 is the same as the diameter of the counterweight rod 301. The arcuate opening 406 can stably engage the counterweight rod 301 to ensure the stability of the clamping plate 403 in pulling down the counterweight rod 301.
[0032] Furthermore, a buckle groove 407 is arranged on the top of the card plate 403, and the buckle groove 407 is L-shaped, which makes it convenient for people to hold and pull the card plate 403; the utility model solves the technical problem of poor stability of the current digital media design work projection display device through the cooperation of the pulling structure 4 and the fixing structure 5.
[0033] Working Principle: When projecting digital media design works, first, the projection screen 3 can be lowered using the retracting structure 2. Then, the pulling structure 4 can be moved to a suitable position, so that the pulling structure 4 pulls down the counterweight rod 301 at the bottom of the projection screen 3. The pulling structure 4 is then fixed using the fixing structure 5, thereby keeping the projection screen 3 in a straight state and preventing it from shaking due to external airflow. This ensures the stability of the projection screen 3 for projecting digital media design works. The work can then be projected onto the projection screen 3 for display.
[0034] Secondly, when the counterweight rod 301 at the bottom of the projection screen 3 is pulled down, the card plate 403 can be pulled. At this time, the spring 402 is in a stretched state, and then the counterweight rod 301 is placed under the card plate 403. Under the reset action of the spring 402, the card plate 403 is pulled back, so that the card plate 403 is engaged with the counterweight rod 301 and a downward pulling force is applied to the counterweight rod 301 at all times, thereby better pulling down and straightening the projection screen 3, and ensuring the stability of the tension of the projection screen 3 during use.
[0035] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.
Claims
1. A projection display device for digital media design works, characterized in that: The invention comprises a support (1) and a projection screen (3), wherein a reeling structure (2) for reeling in and unreeling the projection screen (3) is arranged at the top of the front of the support (1), the projection screen (3) is wound in the reeling structure (2), and a counterweight rod (301) is arranged at the bottom of the projection screen (3) passing through the reeling structure (2); Pulling structures (4) are slidably arranged on both sides of the bottom of the front side of the bracket (1); the two groups of pulling structures (4) on the bracket (1) are symmetrically arranged; and a fixing structure (5) is arranged on one side of the pulling structure (4); The pulling structure (4) comprises a mounting block (401), wherein the mounting block (401) is slidably arranged on the bracket (1), a clamping plate (403) is arranged on the top of the mounting block (401) via a spring (402), and the clamping plate (403) and the mounting block (401) are combined into an L shape.
2. The digital media design work projection display device according to claim 1, characterized in that: The front side of the bracket (1) is provided with a slide groove (101) corresponding to the mounting block (401), and a slider (102) is slidably arranged inside the slide groove (101), and the slider (102) is fixedly connected to the mounting block (401).
3. The digital media design work projection display device according to claim 2, characterized in that: The slide groove (101) and the slider (102) are both T-shaped, and the slide groove (101) and the slider (102) have matching sizes.
4. The digital media design work projection display device according to claim 1, characterized in that: A limiting rod (404) is arranged at the bottom of the clamping plate (403), a through hole (405) corresponding to the limiting rod (404) is arranged at the top of the mounting block (401), and the diameter of the through hole (405) is the same as that of the limiting rod (404), and the limiting rod (404) passes through the mounting block (401).
5. The digital media design work projection display device according to claim 1, characterized in that: The fixing structure (5) comprises a welding block (501), a fixing bolt (502) and a fixing screw hole (503); the welding block (501) is arranged on one side of the mounting block (401); the fixing bolt (502) is screwed onto the welding block (501) via a threaded structure; a plurality of groups of fixing screw holes (503) are equidistantly arranged on the front side of the bracket (1), and the fixing screw holes (503) correspond to the fixing bolts (502).
6. The digital media design work projection display device according to claim 1, characterized in that: An arc opening (406) is arranged on the front side of the bottom of the clamping plate (403), and the diameter of the arc opening (406) is the same as the diameter of the counterweight rod (301).
7. The digital media design work projection display device according to claim 1, characterized in that: A buckle groove (407) is arranged on the top of the clamping plate (403), and the buckle groove (407) is L-shaped.