CN107725994B - Installation and adjustment component of projection screen and projection screen - Google Patents

Abstract

The invention discloses an installation and adjustment component of a projection screen and a projection screen, which relate to the technical field of display and can easily install the projection screen and adjust the position of the projection screen along the vertical direction. An installation and adjustment assembly for a projection screen is used for installing the projection screen on an installation surface, comprising: an upper bracket, the upper bracket includes a fixing frame and an adjustment frame, the fixing frame is used for being fixed on the installation surface, The adjusting frame is provided with a hooking part, and the hooking part is used for hooking with the upper end of the projection screen to prevent the projection screen from moving downward, and the fixing frame and the adjusting frame are connected by an adjusting structure, The adjusting structure can adjust the relative positions of the fixing frame and the adjusting frame along the vertical direction; a lower support, the lower support is used for detachable connection with the lower end of the projection screen, and the lower support can limit the projection The degrees of freedom of the screen along the thickness direction. The present invention is used to install projection screens.

Description

Installation and adjustment component of projection screen and projection screen

technical field

The present invention relates to the field of display technology, in particular to an installation and adjustment component of a projection screen and a projection screen.

Background technique

The projection screen is a device around the projector, which is used to receive the projected light from the projector. If it is properly matched with the projector, you can get a high-quality projection effect. For example, laser TV, laser TV is composed of laser light source projector and projection screen using reflective ultra-short-throw projection technology, which can show a good picture in a high-brightness environment. Compared with LCD TVs, laser TVs have brighter colors and higher brightness. And it also has inherent advantages in the manufacture of super large screens. Compared with the same size laser TV and LCD TV, the laser light source has a longer life and lower power consumption, which meets the social energy conservation and environmental protection needs.

When the current projection screen is installed, a hanging wheel or a hanging frame is generally fixed on the wall in advance, and then the projection screen is hung on the hanging wheel or the hanging frame. Since the back of the projection screen is assembled with the hanging wheel or hanger on the wall, the positional accuracy of the hanging wheel pre-fixed on the wall is required to be high, and a slight deviation will cause the projection screen and the wall hanging wheel to not cooperate. question. In addition, due to the large weight of the large-sized projection screen, two people are required to carry the screen for installation during the installation process, which takes a long time and consumes energy during the installation process. Moreover, the positions of the projection device and the projection screen need to be aligned in order to achieve the best display effect. If during the installation of the projection screen, when the projection equipment does not match the vertical direction of the projection screen, more than two professional installers are required to lift the screen to remove it, readjust the screen hanger, and then hang the screen again. This operation process may go back and forth many times, which seriously affects the installation efficiency and greatly increases the labor cost.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an installation adjustment assembly for a projection screen and a projection screen, which can easily install the projection screen and adjust the position of the projection screen along the vertical direction.

To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

An installation adjustment component for a projection screen, used for installing the projection screen on an installation surface, comprising:

An upper bracket, the upper bracket includes a fixing frame and an adjusting frame, the fixing frame is used to be fixed on the installation surface, and the adjusting frame is provided with a hooking part, and the hooking part is used for connecting with the projection screen. The upper end is hung, and the fixing frame and the adjusting frame are connected by an adjusting structure, and the adjusting structure can adjust the relative position of the fixing frame and the adjusting frame along the vertical direction;

The lower bracket is used for detachably connecting with the lower end of the projection screen, and the lower bracket can limit the degree of freedom of the projection screen along the thickness direction.

The installation and adjustment assembly of the projection screen according to the embodiment of the present invention includes an upper bracket and a lower bracket, wherein the upper bracket includes a fixing bracket and an adjustment bracket, the upper bracket is fixed on the installation surface by the fixing bracket, and the adjustment bracket is provided with a hanging part, The upper end of the projection screen can be hooked on the hook portion to prevent the projection screen from moving downward; the lower bracket is connected with the lower end of the projection screen and can limit the degree of freedom of the projection screen along the thickness direction. Furthermore, the projection screen can be fixed on the installation surface by the upper bracket and the lower bracket. In addition, in order to facilitate the adjustment of the position of the installed projection screen, an adjustment structure is provided between the fixed frame of the upper bracket and the adjustment frame, and the adjustment structure can adjust the relative position of the fixed frame and the adjustment frame along the vertical direction, that is, the adjustable The relative position of the projection screen and the mounting surface in the vertical direction. At the same time, the lower bracket is detachably connected to the lower end of the projection screen. When the projection screen needs to be adjusted, the lower bracket can be easily disassembled from the projection screen to adjust the position of the projection screen. Compared with the prior art, when installing the projection screen, since the adjustment structure of the upper bracket can adjust the relative positions of the fixing frame and the adjustment frame along the vertical direction, the installation position accuracy of the upper bracket is relatively low, even if the There is a slight deviation in the position, and the relative position of the fixing frame and the adjusting frame in the vertical direction can also be adjusted by adjusting the structure to ensure that the mounting part can cooperate with the projection screen, so that the installation of the projection screen is simple and convenient; When the straight directions do not match, disassemble the lower bracket and the projection screen. At this time, it is not necessary to remove the projection screen. The relative position of the fixing frame and the adjusting frame along the vertical direction can be directly adjusted through the adjustment structure, that is, the adjustment of the projection screen and the installation The relative position of the face in the vertical direction.

On the other hand, an embodiment of the present invention also provides a projection screen, including a screen body, an upper hook portion is provided on the upper end of the back of the screen body, and the upper hook portion is used for adjustment with the above-mentioned installation and adjustment assembly Mounting on the rack.

In the projection screen of the embodiment of the present invention, the upper end of the back of the screen body is provided with an upper hook portion. Since the upper hook portion is hooked to the hook portion on the above-mentioned adjustment frame for installing the adjustment assembly, the projection screen and the adjustment structure can be adjusted through the adjustment structure. The relative position of the installation surface along the vertical direction, so the installation is simple and convenient, and the position of the projection screen along the vertical direction can be adjusted.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only for the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a first implementation manner of an upper bracket of an installation adjustment assembly of a projection screen according to an embodiment of the present invention and an exploded schematic diagram of the installation of the projection screen;

2 is a second implementation manner of the upper bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention and a schematic structural diagram of the installation of the projection screen;

3 is a first implementation manner of the lower bracket of the installation adjustment assembly of the projection screen according to the embodiment of the present invention and a schematic structural diagram of the installation of the projection screen;

4 is a second implementation manner of the lower bracket of the installation adjustment assembly of the projection screen according to the embodiment of the present invention and a schematic structural diagram of the installation of the projection screen;

5 is a schematic structural diagram of a first implementation manner of the upper bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention;

6 is a schematic structural diagram of a second implementation manner of the upper bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention;

7 is a schematic diagram of a second implementation of the upper bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention and the exploded structural diagram of the installation of the projection screen;

8 is a first structural schematic diagram of a first adjustment tooth of a second implementation manner of the upper bracket of the installation adjustment assembly of the projection screen according to the embodiment of the present invention;

9 is a second structural schematic diagram of a first adjusting tooth of a second implementation manner of the upper bracket of the installation adjusting assembly of the projection screen according to the embodiment of the present invention;

10 is a schematic structural diagram of a first implementation manner of the lower bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention;

11 is a schematic structural diagram of a second implementation manner of the lower bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention;

12 is a schematic diagram of a second implementation of the lower bracket of the installation and adjustment assembly of the projection screen according to the embodiment of the present invention and the exploded structural diagram of the installation of the projection screen;

FIG. 13 is a schematic structural diagram of an upper hook of a projection screen according to an embodiment of the present invention.

Reference number:

1-Installation adjustment assembly; 11-Up bracket; 12-Fixed frame; 121-First adjustment hole; 122-Limiting protrusion; 123-First adjustment tooth; 124-Location hole; 13-Adjustment frame; 132-second adjustment hole; 133-second adjustment tooth; 134-first long hole; 14-lower bracket; 141-first magnetic adsorption piece; 142-second magnetic adsorption piece; 143-limiting hole ;144-Limiting shaft; 145-Hook; 146-Second slotted hole; 15-Connector; 16-Fastener; 17-Double-sided tape; 2-Projection screen; 21-Screen body; 22-Up hook part; 23 - lower hook part.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or assemblies, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating Or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The installation adjustment assembly 1 of the projection screen according to the embodiment of the present invention is used to install the projection screen 2 on the installation surface, including:

As shown in FIG. 1 and FIG. 2 , the upper bracket 11 includes a fixing frame 12 and an adjusting frame 13 . The fixing frame 12 is used to be fixed on the installation surface, and the adjusting frame 13 is provided with a hooking part 131 . The hooking part 131 is used for hanging with the upper end of the projection screen 2 to prevent the projection screen 2 from moving downward, the fixing frame 12 and the adjusting frame 13 are connected by an adjusting structure, and the adjusting structure can adjust the fixing frame 12 and the adjusting frame 13 along the vertical direction relative position;

As shown in FIG. 3 and FIG. 4 , the lower bracket 14 is used for detachably connecting with the lower end of the projection screen 2 , and the lower bracket 14 can limit the degree of freedom of the projection screen 2 along the thickness direction.

The installation and adjustment assembly 1 of the projection screen according to the embodiment of the present invention includes an upper bracket 11 and a lower bracket 14. As shown in FIG. 1 and FIG. 2, the upper bracket 11 includes a fixing bracket 12 and an adjustment bracket 13. The upper bracket 11 is fixed The frame 12 is fixed on the installation surface, and the adjustment frame 13 is provided with a hooking part 131, and the upper end of the projection screen 2 can be hooked on the hooking part 131 to prevent the projection screen 2 from moving downward; as shown in Figures 3 and 4 As shown, the lower bracket 14 is connected with the lower end of the projection screen 2 and can limit the degree of freedom of the projection screen 2 along the thickness direction. Furthermore, the projection screen 2 can be fixed to the installation surface by the upper bracket 11 and the lower bracket 14 . In order to facilitate the adjustment of the position of the installed projection screen 2, an adjustment structure is provided between the fixed frame 12 and the adjustment frame 13 of the upper bracket 11, and the adjustment structure can adjust the relative positions of the fixed frame 12 and the adjustment frame 13 along the vertical direction. That is, the relative position of the projection screen 2 and the installation surface along the vertical direction can be adjusted. Meanwhile, the lower bracket 14 is detachably connected to the lower end of the projection screen 2 . When the projection screen 2 needs to be adjusted, the lower bracket 14 can be easily disassembled from the projection screen 2 to adjust the position of the projection screen 2 . Compared with the prior art, when the projection screen 2 is installed, since the adjustment structure of the upper bracket 11 can adjust the relative positions of the fixing frame 12 and the adjustment frame 13 along the vertical direction, the installation position accuracy of the upper bracket 11 is relatively low. , even if the position of the upper bracket 11 is slightly deviated, the relative position of the fixing frame 12 and the adjusting frame 13 in the vertical direction can be adjusted by adjusting the structure to ensure that the mounting part 131 can cooperate with the projection screen 2, and then the projection screen 2 can be installed. Simple and convenient; when the vertical direction of the projection device and the projection screen 2 does not match, the lower bracket 14 and the projection screen 2 are disassembled. At this time, the projection screen 2 does not need to be removed, and the fixing frame 12 can be directly adjusted and adjusted through the adjustment structure. The relative position of the stand 13 in the vertical direction, that is, the relative position of the projection screen 2 and the installation surface in the vertical direction is adjusted.

It should be noted that, after the projection screen 2 is installed on the installation surface, the spatial orientation of the projection screen 2 needs to be adjusted so that the projection screen 2 corresponds to the projection device so as to achieve the best display effect. The spatial orientation of the projection screen 2 includes a horizontal position, a vertical position, a screen tilt angle of the projection screen 2 and the like. 1 and 2, since the upper end of the projection screen 2 is hung on the upper bracket 12, the projection screen 2 has a certain displacement space along the horizontal direction and can be adjusted; The relative position in the vertical direction, and then the position of the projection screen 2 along the vertical direction can be adjusted through the adjustment structure; with reference to FIG. 3 and FIG. 4 , since the lower bracket 14 can limit the degree of freedom of the projection screen 2 along the thickness direction, the In cooperation with the upper bracket 13, the screen tilt angle of the projection screen 2 can be controlled.

There are many ways to realize the adjustment structure, one of which is shown in FIG. 1 and FIG. 5 , the adjustment structure includes a plurality of first adjustment holes 121 arranged on the fixing frame 12 in the vertical direction, and arranged in the vertical direction. There are a plurality of second adjustment holes 132 on the adjustment frame 13 and the connecting piece 15. When any first adjustment hole 121 and any second adjustment hole 132 are opposite to each other, the connecting piece 15 can pass through the first adjustment hole 121 and the connecting piece 15. The second adjusting hole 132 connects the fixing frame 12 and the adjusting frame 13 . In this way, when the relative positions of the fixing frame 12 and the adjusting frame 13 in the vertical direction change, as long as any first adjusting hole 121 and any second adjusting hole 132 are opposite to each other, the connecting piece 15 can pass through the first adjusting hole 121 and the second adjusting hole 132 to connect the fixing frame 12 and the adjusting frame 13 . The plurality of first adjustment holes 121 and the plurality of second adjustment holes 132 arranged in the vertical direction can realize a plurality of different relative positions of the fixing frame 12 and the adjustment frame 13 along the vertical direction.

It should be noted that the connecting piece 15 may be a common connecting piece, such as a screw and a pin, etc.; meanwhile, the number of the connecting piece 15 may be one or more. Wherein, preferably two screws are used for fixing, so as to ensure the reliability of the fixing frame 12 and the adjusting frame 13 .

In order to improve the adjustment accuracy and facilitate the alignment of the first adjustment holes 121 and the second adjustment holes 132, as shown in FIG. 5, the distance between the two adjacent first adjustment holes 121 is The spacing between 132 is equal. In this way, the alignment of the first adjustment hole 121 and the second adjustment hole 132 is relatively convenient, and when the relative position of the fixing frame 12 and the adjustment frame 13 in the vertical direction changes linearly, each time the first adjustment hole 121 and the second adjustment hole 121 and the second adjustment The holes 132 are aligned so that the relative positions of the fixing frame 12 and the adjusting frame 13 change in the same distance along the vertical direction, so that the adjustment range can be accurately grasped during operation and adjustment, and the adjustment accuracy can be improved.

Since both the first adjustment hole 121 and the second adjustment hole 132 are arranged in the vertical direction, if the fixing frame 12 and the adjustment frame 13 are misaligned in the horizontal direction, the alignment of the first adjustment hole 121 and the second adjustment hole 132 more difficult. In order to avoid the above problems, as shown in FIG. 5 , both sides of the fixing frame 12 along the horizontal direction are respectively provided with limiting protrusions 122 , and the adjusting frame 13 is disposed between the limiting protrusions 122 on both sides of the fixing frame 12 along the horizontal direction. In this way, when the adjusting member 13 slides along the fixing frame 13, the two limiting protrusions 122 can limit the movement of the adjusting frame 13 in the horizontal direction, and further, the first adjusting hole 121 and the second adjusting hole arranged in the vertical direction 132 alignment is simpler.

It should be noted that the number of the limiting protrusions 122 can be set according to actual needs. As long as the limiting protrusions 122 are provided on both sides of the fixing frame 12 along the horizontal direction, the movement of the adjusting frame 13 in the horizontal direction can be limited. Ground, as shown in FIG. 5 , there are two limiting protrusions 122 , which are respectively located on both sides of the fixing frame 12 along the horizontal direction.

Another implementation of the adjustment structure, as shown in FIG. 2 , FIG. 6 and FIG. 7 , the adjustment structure includes a plurality of first adjustment teeth 123 arranged on the fixing frame 12 in the vertical direction, The plurality of second adjustment teeth 133 on the frame 13 and the connecting piece 15, when the first adjustment teeth 123 and the second adjustment teeth 133 are matched, the latching force between the first adjustment teeth 123 and the second adjustment teeth 133 can prevent The adjusting frame 13 moves downward relative to the fixing frame 12 , and the connecting member 15 can press and connect the fixing frame 12 and the adjusting frame 13 along the thickness direction. In this way, through the cooperation of the plurality of first adjusting teeth 123 and the plurality of second adjusting teeth 133, the relative positions of the fixing frame 12 and the adjusting frame 13 along the vertical direction can be adjusted. When the relative position of the direction reaches the required position, the connecting member 15 can press and connect the fixing frame 12 and the adjusting frame 13 in the thickness direction, so that the first adjusting tooth 123 and the second adjusting tooth 133 are closely matched, and then the first adjusting tooth 123 The engaging force with the second adjusting teeth 133 can prevent the adjusting frame 13 from moving downward relative to the fixing frame 12 , so that the relative positions of the fixing frame 12 and the adjusting frame 13 in the vertical direction can be fixed.

For the structure in which the first adjusting tooth 123 and the second adjusting tooth 133 are provided, the connecting member 15 can be a connecting member 15 using a pressure plate, and the fixing frame 12 and the adjusting frame 13 are pressed and fixed on both sides; it can also be a screw The fixing frame 12 and the adjusting frame 13 are fixed by opening holes on the fixing frame 12 and the adjusting frame 13, and then the screws and pins pass through the holes to fix the fixing frame 12 and the adjusting frame 13; A plurality of positioning holes 124 are arranged at intervals in the vertical direction, and the adjusting frame 13 is provided with a first long hole 134 extending in the vertical direction. The frame 13 is pressed to connect.

The cooperation between the first adjusting teeth 123 and the second adjusting teeth 133 is mainly subjected to the gravity from the projection screen 2 . Since the projection screen 2 is hung on the adjusting frame 13, the second adjusting teeth 133 provided on the adjusting frame 13 exert a vertical downward force on the first adjusting teeth 123 provided on the fixing frame 12, that is, the first The adjusting tooth 123 needs to have a force bearing surface that can overcome the vertical downward force. Therefore, as shown in FIG. 8 and FIG. 9 , the first adjusting tooth 123 includes an upper tooth surface and a lower tooth surface, and the upper tooth surface is a horizontal surface or an upper tooth surface. The side of the tooth surface close to the tooth top is inclined upward. 8 is a schematic diagram of the upper tooth surface of the first adjusting tooth 123 being a horizontal plane; FIG. 9 is a schematic diagram showing that the side of the upper tooth surface of the first adjusting tooth 123 close to the tooth top is inclined upward. The upper tooth surface of the first adjusting tooth 123 is a horizontal surface or the side of the upper tooth surface close to the tooth top is inclined upward, that is, the upper tooth surface of the first adjusting tooth 123 is a force-bearing surface, which can give a vertical downward force. The reaction force can overcome the vertical downward force when the upper tooth surface of the first adjusting tooth 123 is matched with the second adjusting tooth 133 to ensure that the relative position of the fixing frame 12 and the adjusting frame 13 does not change.

It should be noted that the shape of the tooth surface of the second adjusting tooth 133 and the shape of the tooth surface of the first adjusting tooth 123 are matched with each other. In addition, in order to prevent the relative position of the first adjusting tooth 123 and the second adjusting tooth 133 from moving in the horizontal direction, a limiting boss may also be provided to limit the relative position of the first adjusting tooth 123 and the second adjusting tooth 133 in the horizontal direction. Location. In addition, the tooth spacing between the first adjusting teeth 123 and the second adjusting teeth 133 is preferably 1 mm to 10 mm. Taking a 100-inch projection screen 2 as an example, the tooth spacing between the first adjusting teeth 123 and the second adjusting teeth 133 is 5mm scheme.

In addition, referring to FIGS. 5 and 6 , the fixed connection between the fixing frame 12 and the mounting surface is realized by using fasteners 16 , and the fasteners 16 may be self-tapping screws or expansion screws.

The lower bracket 14 is detachably connected to the lower end of the projection screen 2 and can limit the degree of freedom of the projection screen 2 along the thickness direction. There are also various implementations, one of which is shown in FIG. 3 and FIG. 10 . The lower bracket 14 includes a first magnetic adsorption member 141 fixed on the lower end of the projection screen 2 , and a second magnetic adsorption member fixed on the installation surface. The adsorption member 142, the first magnetic adsorption member 141 and the second magnetic adsorption member 142 can be magnetically attracted. In this way, when the projection screen 2 is installed, the first magnetic adsorption member 141 and the second magnetic adsorption member 142 are magnetically attracted to limit the degree of freedom of the projection screen 2 along the thickness direction, and the disassembly and installation are relatively convenient. In addition, the structure fixed by magnetic attraction has lower requirements on installation accuracy. As long as the first magnetic attraction member 141 and the second magnetic attraction member 142 are basically aligned, the magnetic attraction can be achieved, and the position adjustment is relatively easy.

Specifically, in order to realize that the first magnetic adsorption member 141 and the second magnetic adsorption member 142 can be magnetically attracted, the first magnetic adsorption member 141 is made of a magnet, and the second magnetic adsorption member 142 is made of a material that can be attracted by a magnet; Alternatively, the second magnetic adsorption member 142 is made of a magnet, and the first magnetic adsorption member 141 is made of a material that can be adsorbed by a magnet.

In order to prevent misalignment when the first magnetic adsorption member 141 and the second magnetic adsorption member 142 are magnetically attracted, as shown in FIG. A limit shaft 144 is provided, and the limit shaft 144 can fit through the limit hole 143 . The limiting shaft 144 is fitted through the limiting hole 143 to provide a guiding function when the first magnetic attracting member 141 and the second magnetic attracting member 142 are magnetically attracted to prevent misalignment and assist positioning during installation.

The first magnetic adsorption member 141 and the second magnetic adsorption member 142 need to be fixed on the projection screen 2 and the installation surface respectively. There are various specific fixing methods, but for the convenience of adjustment and installation, at least one side is detachably connected. For example, as shown in FIG. 10 , the first magnetic adsorption member 141 is bonded to the back of the projection screen 2 through the double-sided adhesive tape 17 , and the second magnetic adsorption member 142 is fixedly connected to the installation surface through the fastener 16 . Fasteners 16 may be self-tapping or expansion screws or the like.

Another implementation of the lower bracket 14 , as shown in FIGS. 4 , 11 and 12 , the lower bracket 14 includes a hook 145 fixed on the installation surface, and the hook 145 can be hooked to the lower end of the projection screen 2 . By hooking the hook 145 to the lower end of the projection screen 2 , the degree of freedom of defining the projection screen 2 along the thickness direction can be achieved, and the structure is simple.

However, if the hook 145 is used for fixing, when the position of the hook 145 is fixed, the lower end hooking part of the corresponding projection screen 2 needs to be aligned with the hook 145, especially if the position of the hook 145 in the vertical direction is misaligned, it is necessary to Adjust the position of the adjusting frame 13 of the upper bracket 11 through the adjusting structure, or re-install the position of the hook 145 . Therefore, in order to avoid rework, as shown in FIG. 11 , the hook 145 is a bent plate-like structure, and the hook 145 is connected with the mounting surface by the fastener 16 , and a plurality of second lengths extending in the vertical direction are provided on the hook 145 The holes 146 and the plurality of second long holes 146 are arranged along the width direction of the hook 145 , and the fasteners 16 are arranged through the second long holes 146 . The second long hole 146 extending in the vertical direction on the hook 145 can adjust the vertical position of the hook 145 after the hook 145 is installed, thereby avoiding rework.

In addition, referring to FIG. 12 , the fastener 16 passes through the second long hole 146 to fix the hook 145 with the installation surface. During installation, it can be unfastened first, and the hook 145 can be rotated by the fastener 16 to facilitate the connection with the projection screen. 2 match. Fasteners 16 may be self-tapping or expansion screws or the like.

It should be noted that, in the installation and adjustment assembly 1 of the projection screen according to the embodiment of the present invention, the implementation of the above two adjustment structures and the above two implementations of the lower bracket 14 are all partial embodiments, and the two The realization of the adjustment structure and the realization of the two lower brackets 14 can be paired arbitrarily. In addition, the installation and adjustment assembly 1 of the projection screen of the embodiment of the present invention takes a 100-inch projection screen as an example, and a large number of implementations of the above two adjustment structures and the above two implementations of the lower bracket 14 have been made. After verification, the screen can be adjusted up and down by 100mm in the vertical direction.

On the other hand, the embodiment of the present invention also provides a projection screen, referring to FIG. 1 , FIG. 3 and FIG. 13 , including a screen body 21 , an upper hook portion 22 is provided on the upper end of the back of the screen body 21 , and the upper The hooking portion 22 is used for hooking with the hooking portion 131 on the adjusting frame 13 on which the adjusting assembly 1 is installed as described above.

In the projection screen of the embodiment of the present invention, the upper end of the back of the screen body 21 is provided with an upper hook portion 22. Since the upper hook portion 22 is hooked to the hook portion 131 on the adjustment frame 13 on which the adjustment assembly 1 is installed, the adjustment The structure can adjust the relative position of the projection screen 2 and the installation surface along the vertical direction, so the installation is simple and convenient, and the position of the projection screen 2 along the vertical direction can be adjusted.

Referring to FIG. 3 , when the lower bracket 14 includes a first magnetic adsorption member 141 fixed on the lower end of the projection screen 2 and a second magnetic adsorption member 142 fixed on the installation surface, the lower end of the projection screen 2 is fixed with the first magnetic adsorption member 141 , no other special structure is required. Of course, in order to make the magnetic adsorption firm, the position of the lower end of the projection screen 2 corresponding to the lower bracket 14 is preferably made of a metal material, such as steel or aluminum.

4 , when the lower bracket 14 includes a hook 145 fixed on the installation surface, the lower end of the back of the screen body 21 is provided with a lower hook portion 23 for connecting with the lower bracket 14 on which the adjustment assembly 1 is installed.

It should be noted that the frame of the projection screen 2 can adopt an integrated extruded aluminum profile structure. The extruded aluminum profile has high strength and can be directly matched with the upper bracket 11, while ensuring that the upper bracket 11 and the lower bracket 14 are connected to the projection screen. 2 Isolate a certain distance to reduce the difficulty of installation.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered. within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (14)

1. A projection screen mounting adjustment assembly for mounting a projection screen to a mounting surface, comprising:

the upper bracket comprises a fixed frame and an adjusting frame, the fixed frame is used for being fixed on the mounting surface, a hanging part is arranged on the adjusting frame and is used for being hung with the upper end of the projection screen, the fixed frame and the adjusting frame are connected through an adjusting structure, and the adjusting structure can adjust the relative position of the fixed frame and the adjusting frame along the vertical direction;

the lower support is detachably connected with the lower end of the projection screen and can limit the degree of freedom of the projection screen in the thickness direction;

adjust the structure including along vertical direction set up in a plurality of first regulation teeth on the mount, along vertical direction set up in a plurality of second regulation teeth and connecting piece on the alignment jig, work as when first regulation tooth and second regulation tooth cooperate, the joint power between first regulation tooth and the second regulation tooth can prevent the alignment jig for the mount moves down, the connecting piece can with the mount with the alignment jig compresses tightly the connection along thickness direction.

2. The assembly of claim 1, wherein the adjustment structure includes a plurality of first adjustment holes vertically disposed on the fixed frame, a plurality of second adjustment holes vertically disposed on the adjustment frame, and a connector that can pass through the first adjustment holes and the second adjustment holes to connect the fixed frame and the adjustment frame when any one of the first adjustment holes is opposite to any one of the second adjustment holes.

3. The installation adjustment assembly of claim 2, wherein a spacing between adjacent ones of said first adjustment holes is equal to a spacing between adjacent ones of said second adjustment holes.

4. The assembly of claim 2, wherein the fixing frame is provided with two limiting protrusions at two sides along the horizontal direction, and the adjusting frame is arranged between the limiting protrusions at two sides of the fixing frame along the horizontal direction.

5. The assembly of claim 1, wherein the fixing frame has a plurality of positioning holes spaced apart from each other in a vertical direction, the adjusting frame has a first elongated hole extending in the vertical direction, and the connecting member can pass through the positioning holes and the first elongated hole to press and connect the fixing frame and the adjusting frame.

6. The setting adjustment assembly of claim 1, wherein the first adjustment tooth includes an upper tooth surface and a lower tooth surface, the upper tooth surface being a horizontal surface or a side of the upper tooth surface near a tooth top being inclined upward.

7. The assembly of any one of claims 1 to 6, wherein the lower bracket comprises a first magnetic attraction member fixed to a lower end of the projection screen and a second magnetic attraction member fixed to a mounting surface, and the first magnetic attraction member and the second magnetic attraction member are magnetically attracted.

8. The installation adjustment assembly of claim 7, wherein said first magnetically attractive member is made of a magnet and said second magnetically attractive member is made of a material that can be attracted by a magnet; or, the second magnetic adsorption piece is made of a magnet, and the first magnetic adsorption piece is made of a material which can be adsorbed by the magnet.

9. The assembly adjusting assembly of claim 7, wherein the first magnetic adsorbing member is provided with a limiting hole, the second magnetic adsorbing member is provided with a limiting shaft, and the limiting shaft can be inserted into the limiting hole.

10. The assembly of claim 7, wherein the first magnetic attraction member is adhered to the back surface of the projection screen, and the second magnetic attraction member is connected to the mounting surface by a screw.

11. The assembly of any of claims 1 to 6, wherein the lower bracket comprises a hook fixed on the mounting surface, and the hook can be hooked with the lower end of the projection screen.

12. The assembly of claim 11, wherein the hook is a bent plate-shaped structure, the hook is connected to the mounting surface by a fastening member, the hook is provided with a plurality of second elongated holes extending in a vertical direction, the plurality of second elongated holes are arranged along a width direction of the hook, and the fastening member is disposed through the elongated holes.

13. A projection screen comprises a screen body and is characterized in that an upper hanging part is arranged at the upper end of the back of the screen body and used for hanging with the hanging part on the adjusting frame for installing the adjusting assembly according to any one of claims 1 to 12.

14. The projection screen of claim 13, wherein a lower hanging portion is disposed at a lower end of the back of the screen body, and the lower hanging portion is used for connecting with a lower bracket of the mounting adjustment assembly.

Images