A projection screen that is quickly arranged

Abstract

This utility model relates to a projection screen that can be quickly set up, and belongs to the field of projection screen design technology. It includes a support rod for supporting the projection screen, a first hanging mechanism for hanging the projection screen at the top of the support rod, and a second hanging mechanism for limiting the bottom of the projection screen on the support rod. This application utilizes the first hanging mechanism to achieve relative hanging of the top of the projection screen and the second hanging mechanism to achieve relative hanging of the bottom of the projection screen. At this time, the projection screen is in a relatively taut state, maintaining its relative stability. Even in the presence of airflow in the space, the projection effect can be guaranteed, thus solving the problem of poor projection effect caused by direct hanging of the screen in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of projection screen design technology, specifically a projection screen that can be quickly set up. Background Technology

[0002] The installation of a wall-mounted screen typically involves placing the screen on a bracket and securing it with screws to ensure stability and prevent wobbling. Alternatively, a motorized device can be used to hang the screen. However, the presence of such a device increases the overall weight of the screen, making it difficult to move. Hanging the screen on a bracket, where its own weight causes it to sag, is simpler. However, this method requires ensuring the stability of the space in which the screen is located. If there is airflow, it can cause the screen to sway, affecting its performance.

[0003] If the bottom of the curtain is fixed directly, there will be unrelated parts at the bottom of the curtain, which will make the winding roller at the bottom of the curtain not smooth enough. This will make it very easy to create wrinkles when the curtain is rolled up, affecting the winding effect of the curtain. Utility Model Content

[0004] The technical problem solved by this utility model is to solve the problem of screen swaying caused by unstable spatial environment when the screen is directly hung in the prior art.

[0005] This utility model can be achieved through the following technical solution: a projection screen that can be quickly set up, including a support rod for supporting the projection screen, a first hanging mechanism for hanging the projection screen at the top of the support rod, and a second hanging mechanism for limiting the bottom of the projection screen on the support rod.

[0006] A further technical improvement of this utility model is that: the first hanging mechanism includes a top base, the top of the support rod is fixed with the top base, and the top base is provided with a top hook groove for hanging and engaging the top hook of the projection screen.

[0007] A further technical improvement of this utility model is that the second hanging mechanism includes a fixing sleeve, which is mounted on a support rod, and a pull plate is provided on the fixing sleeve by means of a pull spring. The pull plate is provided with a bottom hook groove for hanging and cooperating with the bottom hook of the projection screen.

[0008] A further technical improvement of this utility model is that a top slide bar is fixed to the top of the projection screen, and a hook for cooperating with the top hook groove is provided on the top of the top slide bar.

[0009] A further technical improvement of this utility model is that: a bottom roller is fixed at the bottom of the projection screen, a first sliding sleeve is slidably arranged on the bottom roller, and the first sliding sleeve and the bottom roller can rotate relative to each other; a second sliding sleeve is fixed at the bottom of the first sliding sleeve, and the second sliding sleeve cooperates with the bottom hook groove.

[0010] A further technical improvement of this utility model is that: the second sliding sleeve has a hook engagement opening for the pull plate to pass through, and the second sliding sleeve is provided with a engagement groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This application utilizes a first mounting mechanism to hang the top of the projection screen relative to the bottom of the projection screen relative to the top of the screen, and a second mounting mechanism to hang the bottom of the projection screen relative to the top of the screen. At this time, the projection screen is in a relatively taut state, which can maintain the relative stability of the projection screen. Even in the presence of air flow in the space environment, the projection effect can be guaranteed, thereby solving the problem of poor projection effect caused by direct hanging of the screen in the prior art.

[0013] 2. This application provides a first sliding sleeve that slides on the bottom roll rod, and the first sliding sleeve and the bottom roll rod are rotatable relative to each other. At the same time, a second sliding sleeve is provided at the bottom of the first sliding sleeve, which cooperates with the bottom hook groove. Therefore, when the first sliding sleeve moves to the middle position of the bottom roll rod, it can limit the bottom of the bottom roll rod. When the first sliding sleeve moves to the edge position of the bottom roll rod, it can ensure that the projection screen can be rolled up and avoid the problem of wrinkles on the projection screen. Attached Figure Description

[0014] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

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

[0016] Figure 2 This is a schematic diagram showing the position of the fixing sleeve of this utility model;

[0017] Figure 3 For the present utility model Figure 2 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 1. Triangular support frame; 2. Support rod; 3. Projection screen; 4. Top base; 5. Top hook groove; 6. Top sliding rod; 7. Limiting end; 8. Bottom rolling rod; 9. Pull spring; 10. Fixing sleeve; 11. Pull plate; 12. Bottom hook groove; 13. Hook mating opening; 14. Mating groove; 15. Connecting plate; 16. Screen mating opening; 17. First sliding sleeve; 18. Second sliding sleeve. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Please see Figure 1-3 As shown, a quick-setup projection screen includes a triangular support frame 1, a support rod 2 fixed on the triangular support frame 1, and a top base 4 fixed on the top of the support rod 2. The top base 4 has a top hook groove 5 for hanging the projection screen 3. In use, simply install the hook on the top slide rod 6 at the top of the projection screen 3 and hang the hook directly in the position of the top hook groove 5 to achieve the installation of the projection screen 3.

[0021] In the above technical solution, if there is air circulation in the space where the projection screen 3 exists, the projection screen 3 will be easily blown by the wind, causing the projection screen 3 to shake and affecting the projection effect.

[0022] To solve the above-mentioned technical problems, this application provides a pull-down mechanism on the support rod 2 to pull down the bottom roller rod 8 fixed at the bottom of the projection screen 3, thereby keeping the projection screen 3 in a relatively taut state to maintain its stability. To achieve this function, this application first uses a sliding mounting sleeve 10 on the support rod 2. In this application, the mounting sleeve 10 and the support rod 2 are slidably connected. When moved to the corresponding position, a bolt is threaded through the mounting sleeve 10, with the end of the bolt abutting against the support rod 2, thus fixing the relative position of the mounting sleeve 10 and the support rod 2. Subsequently, a pull plate 11 is provided on the side of the mounting sleeve 10 via a pull spring 9. The pull plate 11 has a bottom hook groove 12 for hooking with the bottom roller rod 8. In use, the hook on the bottom roller rod 8 and the bottom hook groove 12 are used for installation and engagement. Under the downward pushing force of the pull spring 9, the projection screen 3 is kept in a relatively taut state, maintaining its relative stability.

[0023] In the above technical solution, when a hook is set on the bottom roller 8, if the projection screen 3 is rolled up, the projection screen 3 will be affected by the hook, affecting the surface flatness of the projection screen 3 and the service life of the projection screen 3.

[0024] To solve the above-mentioned technical problems, another embodiment of this application uses a limiting end 7 fixed to the end of the bottom scroll rod 8 to achieve the limiting function, and a first sliding sleeve 17 that can move relative to the bottom scroll rod 8 is provided. The first sliding sleeve 17 is slidably connected to the bottom scroll rod 8, and a screen mating opening 16 is provided on the first sliding sleeve 17 to allow the projection screen 3 to pass through the screen mating opening 16 when the first sliding sleeve 17 moves on the bottom scroll rod 8, until the first sliding sleeve 17 moves to the middle position of the bottom scroll rod 8. At this time, the first sliding sleeve 17... The bottom of the movable sleeve 17 is fixedly installed with a second sliding sleeve 18 via a connecting plate 15. Inside the second sliding sleeve 18, there is a mating groove 14 for engaging with the bottom hook groove 12. On the side of the mating groove 14, there is also a pull plate 11 for entering the hook engagement opening 13. In use, the pull plate 11 is first moved from the hook engagement opening 13 into the mating groove 14. At this time, under the action of the pull spring 9, the pull plate 11 is pushed downward, causing the second sliding sleeve 18 to pull the first sliding sleeve 17 downward until the projection screen 3 is in a straightened state.

[0025] As a further embodiment of this application, when it is necessary to roll up the projection screen 3, this application only needs to move the first sliding sleeve 17 to the edge position of the bottom rolling rod 8, and then roll up the projection screen 3 until the projection screen 3 is rolled up to the edge position. At this time, the first sliding sleeve 17 drives the second sliding sleeve 18 to rotate around the bottom rolling rod 8, so that the hook engagement opening 13 of the second sliding sleeve 18 reaches the position of the top sliding rod 6. Since the size of the top sliding rod 6 and the hook engagement opening 13 are matched, the top sliding rod 6 can enter the interior of the engagement groove 14, so as to achieve complete rolling up of the projection screen 3.

[0026] In use, the fixed sleeve 10 and the support rod 2 are slidably connected. When moved to the corresponding position, a bolt is threaded through the fixed sleeve 10, and the end of the bolt abuts against the support rod 2, thus fixing the relative position of the fixed sleeve 10 and the support rod 2. Subsequently, a pull plate 11 is provided on the side of the fixed sleeve 10 via a pull spring 9. The pull plate 11 has a bottom hook groove 12 for hooking with the bottom coil rod 8. In use, the pull plate 11 is inserted into the groove 14 from the hook engagement opening 13. At this time, under the action of the pull spring 9, the pull plate 11 is pushed downward, causing the second sliding sleeve 18 to pull the first sliding sleeve. 17 moves downwards until the projection screen 3 is in a straightened state, which can maintain the relative stability of the projection screen 3; when it is necessary to roll up the projection screen 3, this application only needs to move the first sliding sleeve 17 to the edge position of the bottom rolling rod 8, and then roll up the projection screen 3 until the projection screen 3 is rolled up to the edge position. At this time, the first sliding sleeve 17 drives the second sliding sleeve 18 to rotate around the bottom rolling rod 8, so that the hook engagement opening 13 of the second sliding sleeve 18 reaches the position of the top sliding rod 6. Since the size of the top sliding rod 6 and the hook engagement opening 13 are matched, the top sliding rod 6 can enter the interior of the engagement groove 14, realizing the complete roll-up of the projection screen 3.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A projection screen for rapid setup, comprising a support rod (2) for supporting the projection screen (3), characterized in that: The top of the support rod (2) is provided with a first hanging mechanism for hanging the projection screen (3), and the support rod (2) is provided with a second hanging mechanism for limiting the bottom of the projection screen (3).

2. The projection screen for rapid setup according to claim 1, characterized in that, The first mounting mechanism includes a top base (4), the top of the support rod (2) is fixed with the top base (4), and the top base (4) is provided with a top hook groove (5) for mounting the top hook of the projection screen (3).

3. A projection screen for rapid setup according to claim 1, characterized in that, The second mounting mechanism includes a fixing sleeve (10), which is mounted on the support rod (2). A pull plate (11) is mounted on the fixing sleeve (10) via a pull spring (9). The pull plate (11) is provided with a bottom hook groove (12) for mounting and engaging with the bottom hook of the projection screen (3).

4. A projection screen for rapid setup according to claim 2, characterized in that, The projection screen (3) is fixed with a top slide bar (6), and the top of the top slide bar (6) is provided with a hook for cooperating with the top hook groove (5).

5. A projection screen for rapid setup according to claim 3, characterized in that, The projection screen (3) has a bottom roller rod (8) fixed at the bottom. A first sliding sleeve (17) is slidably provided on the bottom roller rod (8), and the first sliding sleeve (17) and the bottom roller rod (8) can rotate relative to each other. A second sliding sleeve (18) is fixed at the bottom of the first sliding sleeve (17), and the second sliding sleeve (18) cooperates with the bottom hook groove (12).

6. A projection screen for rapid setup according to claim 5, characterized in that, The second sliding sleeve (18) has a hook engagement opening (13) for the pull plate (11) to pass through, and the second sliding sleeve (18) has a mating groove (14).

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