CN215729256U

CN215729256U - Mounting structure of projection screen

Info

Publication number: CN215729256U
Application number: CN202121958863.1U
Authority: CN
Inventors: 张健; 代琪; 杨长明
Original assignee: Qingdao Hisense Laser Display Co Ltd
Current assignee: Qingdao Hisense Laser Display Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-01
Anticipated expiration: 2031-08-19

Abstract

The embodiment of the application discloses projection screen's mounting structure belongs to projection technical field. This mounting structure includes: the fixing frame is provided with a plurality of limiting mechanisms distributed along the length direction of the fixing frame; the adapter comprises a U-shaped clamping groove and a hanging part, the hanging part is fixedly connected with a first side arm of the clamping groove along the direction back to the opening of the clamping groove, and the clamping groove can be detachably limited on any limiting mechanism; the first side arm of the clamping groove is provided with a first extending part facing the inner side of the opening, and the first extending part can be abutted to the fixed frame; and/or the second side arm of the card slot has a second extension towards the outside of the opening. In this application embodiment, when the height that hangs of projection screen needs to be adjusted, only need take off the adaptor behind the projection screen of taking off to with the spacing stop gear at other co-altitude of adaptor, can realize the adjustment of adaptor height, and then realize the adjustment of the height that hangs of projection screen, thereby improved the adjustment efficiency of the height that hangs of projection screen.

Description

Mounting structure of projection screen

Technical Field

The embodiment of the application relates to the technical field of projection, in particular to a mounting structure of a projection screen.

Background

With the continuous development of science and technology, projection equipment is more and more applied to the work and the life of people. At present, a projection device mainly includes a projection host and a projection screen, where a light outlet of the projection host faces the projection screen to emit a light beam to the projection screen, and the projection screen is configured to receive the light beam to realize display of a picture. When using a projection device, a projection screen is usually suspended from a carrier (carrier). Due to the interference elimination effect of the projection device, and in order to ensure that the picture displayed on the projection screen can be located in the middle area, when the projection screen is suspended, a certain adjustment margin needs to be ensured in the suspension height of the projection screen. The interference elimination of the projection device refers to a ratio of a vertical distance from the center of the display picture to an optical axis of an emergent light beam of the projection host to a half of the height of the display picture.

In the related art, as shown in fig. 1, one end of the hanger has a hook 11, and a plurality of fixing holes 12 are distributed along a length direction of the hanger. Like this, when hanging projection screen, the preliminary fixed position of stores pylon is confirmed to the preliminary fixed height based on projection screen, later with the one end that has the couple on the stores pylon up to pass through set screw based on the fixed orifices that corresponds and realize the fixed of stores pylon and supporting body, and then hang projection screen on the couple. When the height of the projection screen needs to be adjusted, the fixing screws are detached after the projection screen is taken down, and the hanging frame is fixed again through the fixing screws after the fixing holes are replaced, so that the height of the hanging frame is adjusted, and the height of the projection screen is adjusted.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a mounting structure of projection screen, can simplify the adjustment of projection screen height, improves projection screen's installation effectiveness. The technical scheme is as follows:

a mounting structure of a projection screen, the mounting structure of a projection screen comprising:

the fixing frame is provided with a plurality of limiting mechanisms distributed along the length direction of the fixing frame, and the fixing frame is used for being fixed on the bearing body;

the adapter comprises a U-shaped clamping groove and a hanging part, the hanging part is fixedly connected with a first side arm of the clamping groove along the direction back to the opening of the clamping groove, the clamping groove can be detachably limited on any limiting mechanism, and the hanging part is used for hanging a projection screen;

the first side arm of the clamping groove is provided with a first extending part facing the inner side of the opening, and the first extending part can abut against the fixed frame; and/or the second side arm of the card slot has a second extension part facing the outside of the opening.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

in the embodiment of the application, when the projection screen is hung through the mounting structure, the fixing frame is fixed on the bearing body, then the adaptor is limited on any limiting mechanism based on the clamping groove, and the projection screen is hung through the hanging part; when the hanging height of the projection screen is inappropriate, the adapter piece is only required to be taken down after the projection screen is taken down, and the adapter piece is limited at the limiting mechanisms with different heights, so that the height of the adapter piece can be adjusted, and the hanging height of the projection screen can be adjusted. Thus, compared with the operations of detaching the fixing bolt and the like in the related art, the adjustment efficiency of the hanging height of the projection screen is undoubtedly improved. In addition, when the adapter is limited on the limiting mechanism, the first extension part is abutted to the fixing frame, and/or the gravity center of the adapter is adjusted through the second extension part, so that the adapter is prevented from inclining and falling off from the fixing frame, and the suspension efficiency of the projection screen is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a mounting structure provided in the related art;

fig. 2 is a front view structural schematic diagram of a mounting structure provided in an embodiment of the present application;

FIG. 3 is a schematic side view of a projection screen suspension according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a rear view of a suspension for a projection screen according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a test structure of a mounting structure provided in an embodiment of the present application;

FIG. 6 is a side view schematic illustration of a mounting structure provided in an embodiment of the present application;

fig. 7 is a schematic front view of a fixing frame according to an embodiment of the present disclosure.

Reference numerals:

the related technology comprises the following steps:

1: a hanger; 11: hooking; 12: a fixing hole;

the embodiment of the application:

1: a fixed mount; 2: an adapter; 3: a projection screen;

11: a limiting mechanism; 12: a body; 13: a fixed part; 14: an arc-shaped plate;

21: a card slot; 22: a hanging part;

211: a first side arm; 212: a second side arm; 213: a first extension portion; 214: a second extension portion.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.

Fig. 2 illustrates a front view structural diagram of a mounting structure of a projection screen according to an embodiment of the present application, and fig. 3 illustrates a side view structural diagram of a projection screen suspension according to an embodiment of the present application. As shown in fig. 2 and 3, the mounting structure includes: the fixing frame 1 is provided with a plurality of limiting mechanisms 11 distributed along the length direction of the fixing frame 1, and the fixing frame 1 is used for being fixed on a bearing body; the adapter 2, the adapter 2 includes the draw-in groove 21 and the department of hanging 22 of U-shaped, hang the department of hanging 22 along the opening direction that is back to draw-in groove 21 and draw-in groove 21 first side arm 211 fixed connection, draw-in groove 21 can be dismantled spacing on arbitrary stop gear 11, hang the department of hanging 22 and be used for hanging projection screen 3.

In the embodiment of the application, when the projection screen 3 is hung by the mounting structure, the fixing frame 1 is fixed on the supporting body, then the clamping groove 21 is limited on any limiting mechanism 11, and the projection screen 3 is hung by the hanging part 22; when the hanging height of the projection screen 3 is not appropriate, the height of the adapter 2 can be adjusted only by limiting the clamping groove 21 on the limiting mechanisms 11 with different heights after the projection screen 3 is taken down, and then the hanging height of the projection screen 3 can be adjusted. Thus, the efficiency of adjusting the hanging height of the projection screen 3 is certainly improved as compared with the operation of detaching the fixing bolt in the related art.

Wherein, when hanging projection screen 3 through switching portion, in order to guarantee the reliability of hanging, avoid projection screen 3 to drop from hitching and connecting portion 22, hitching and connecting portion 22 is L shape, perhaps obtuse angle V-arrangement.

When fixing the fixing frame 1, in order to ensure that the length direction of the fixing frame 1 is perpendicular to the horizontal direction, whether the length direction of the fixing frame 1 is perpendicular to the horizontal direction can be observed by naked eyes, and certainly, whether the length direction of the fixing frame 1 is perpendicular to the horizontal direction can also be determined by other modes.

The holder 1 is illustratively provided with level vials. Wherein the length direction of the level bubble is parallel to the width direction of the fixing frame 1. Thus, it is possible to determine whether the length direction of the fixing frame 1 is perpendicular to the horizontal direction by observing whether the bubble is located at the middle position of the vial.

Optionally, the vial has a marker line at a mid-position, and it can be determined whether the bubble is at the mid-position of the vial by the deviation of the position of the bubble from the marker line.

In practical applications, as shown in fig. 4, since the projection screen 3 has a large volume, a plurality of mounting structures are required to suspend the projection screen 3. At this time, a plurality of fixing positions at the same horizontal position can be determined on the supporting body through the level, and then the fixing frames 1 included by the plurality of mounting structures are respectively and correspondingly fixed at the plurality of fixing positions, so that the plurality of fixing frames 1 are ensured to be at the same horizontal position.

In this application embodiment, when adaptor 2 passes through draw-in groove 21 spacing on stop gear 11 and does not hang projection screen 3, adaptor 2 probably takes place to incline because of self gravity, drops from mount 1. Thus, in order to avoid the dropping of the adaptor 2, as shown in fig. 5, the first side arm 211 of the card slot 21 has a first extending portion 213 facing the inside of the opening, and the first extending portion 213 can abut against the fixing frame 1, so that the top end of the adaptor 2 is prevented from tilting away from the fixing frame 1, and the adaptor 2 is prevented from dropping; or as shown in fig. 6, the second side arm 212 of the card slot 21 has a second extending portion 214 facing the outside of the opening, and after the card slot 21 is clamped on the limiting mechanism 11, the second extending portion 214 can adjust the center of gravity of the adaptor 2 to shift to approach the fixing frame 1, so that the adaptor 2 is stably supported on the fixing frame 1, and the adaptor 2 is prevented from falling off.

Of course, the adaptor 2 can be prevented from falling off in the above two ways, that is, the first side arm 211 of the card slot 21 has the first extending portion 213 facing the inside of the opening, and the second side arm 212 of the card slot 21 has the second extending portion 214 facing the outside of the opening.

When the first side arm 211 of the card slot 21 has the first extending portion 213, in order to facilitate the mounting and dismounting of the adaptor 2, as shown in fig. 5, the end of the second side arm 212 of the card slot 21 is inclined toward the outside of the opening to increase the size of the opening of the card slot 21. When the second side arm 212 of the card slot 21 has the second extension 214, in order to facilitate the mounting and dismounting of the adaptor 2, as shown in fig. 6, the end of the first side arm 211 of the card slot 21 is inclined toward the outside of the opening to increase the size of the opening of the card slot 21.

In order to ensure that the center of gravity of the adaptor 2 can be closer to the fixing frame 1 when adjusting the center of gravity of the adaptor 2, the second extension 214 has a certain length. The extending direction of the second extending portion 214 is perpendicular to the abutting surface of the fixing frame 1 for abutting the supporting body, but the extending direction of the second extending portion 214 may be slightly inclined downwards or slightly inclined upwards. Specifically, the length and the extending direction of the second extending portion 214 can be set as required, as long as the installation and the disassembly of the adaptor 2 can be facilitated, and meanwhile, the adaptor 2 is prevented from dropping, which is not limited in the embodiment of the present application.

In addition, when the second side arm 212 of the card slot 21 has the second extension 214, the adaptor 2 can be prevented from falling off by adjusting the center of gravity of the adaptor 2, and the adaptor 2 can be prevented from falling off by other methods.

Illustratively, the fixing frame 1 has a stopper rod, the card slot 21 can slide along the width direction of the limiting mechanism 11, and the stopper rod is used for limiting the second extending portion 214. In this way, after the card slot 21 is limited on the limiting mechanism 11, the adaptor 2 is slid along the width direction of the limiting mechanism 11, so that the second extending portion 214 on the second side arm 212 of the card slot 21 is slid to the lower end of the stop lever, so that the second extending portion 214 is limited by the stop lever, and the inclination of the adaptor 2 is avoided.

The fixing frame 1 has a plurality of stopper rods corresponding to the plurality of limiting mechanisms 11 one by one, so that when the card slot 21 is limited at any limiting mechanism 11, the second extending portion 214 of the card slot 21 can be limited by the stopper rod corresponding to the limiting mechanism 11.

After the clamping groove 21 is limited on any limiting structure, further, the mounting structure further comprises a fixing bolt, the first side arm 211 of the clamping groove 21 is provided with a positioning hole, the fixing bolt penetrates through the positioning hole and abuts against the fixing frame 1, or the fixing bolt is limited on the fixing frame 1, and therefore the adaptor 2 can be further prevented from falling.

In the embodiment of the present application, as shown in fig. 7, the fixing frame 1 includes a body 12 having a U-shaped cross section and a fixing portion 13, the fixing portion 13 is fixedly connected to the body 12, the plurality of limiting mechanisms 11 are located on the body 12, and the fixing portion 13 is used for being fixed on the supporting body.

Optionally, the fixing portion 13 has a fixing hole, and the fixing portion 13 can be fixed on the supporting body by a fixing screw passing through the fixing hole to fix the fixing frame 1. And because the wall can not set up the internal thread hole, can realize the fixed part 13 fixed on the wall through the inflation screw this moment to guarantee the fixed strength of mount 1.

A fixing portion 13 is fixed to an end surface and/or at least one opening side of the body 12. For example, as shown in fig. 7, the fixing portion 13 is fixed to the upper end surface of the body 12, or two fixing portions 13 are fixed to both sides of the opening of the body 12.

Wherein, fixed connection can be realized through fixing bolt between fixed part 13 and the body 12, or realize fixed connection through the welded mode, and this application embodiment does not limit to this. Of course, in order to ensure the connection strength between the body 12 and the fixing portion 13 and improve the service life of the fixing frame 1, the fixing portion 13 and the body 12 are of an integral structure.

Illustratively, when the fixing portion 13 is attached to the upper end surface of the body 12, the fixing portion 13 is formed after extending in the length direction at the end of the body 12; when the fixing portion 13 is connected to the opening side of the body 12, the fixing portion 13 is formed after extending in the width direction at the side of the body 12.

The body 12 with the U-shaped cross section can be obtained by processing a metal plate through a sheet metal process, and the body 12 with the square cross section can be a square steel pipe, so that the tensile strength of the body 12 is ensured.

For the body 12 with the U-shaped cross section, when the fixing portion 13 is fixed on the upper end surface or the lower end surface of the body 12, as shown in fig. 7, the body 12 and the fixing portion 13 are connected through the arc-shaped plate 14 to ensure that the back surface of the fixing portion 13 can be attached to the carrier when the fixing portion 13 is fixed with the carrier, thereby ensuring the stability of the connection of the fixing portion 13 and the carrier.

In the embodiment of the present application, the limiting mechanism 11 is disposed on the front surface of the body 12, or disposed on the side surface of the body 12. The front surface of the main body 12 refers to a surface of the main body 12 parallel to the projection screen 3.

When the limiting structure is disposed on the side of the body 12, the limiting structure is not affected by the structure of the body 12. Optionally, the limiting mechanism 11 is a protrusion of the side of the body 12. When the limiting mechanism 11 is disposed on the front surface of the body 12, the limiting mechanism 11 is a rectangular through hole on the front surface of the body 12.

When the limiting mechanism 11 is a rectangular through hole penetrating through the body 12, the depth direction of the rectangular through hole is not parallel to the abutting surface of the body 12 for abutting against the carrier; the distance from the first extension part 213 to the bottom of the slot 21 is greater than the sum of the width of the rectangular through hole and the distance between the rectangular through holes, and less than twice the sum of the distance between the rectangular through hole and the rectangular through hole.

In the embodiment of the present application, in order to facilitate the adjustment of the height of the adaptor 2, the plurality of limiting mechanisms 11 may be arranged according to a certain rule in the length direction of the fixing frame 1.

Illustratively, the plurality of limiting mechanisms 11 are evenly distributed in the length direction of the fixing frame 1. Therefore, as the distance between two adjacent limiting mechanisms 11 is equal, the number of the limiting mechanisms 11 to be adjusted can be determined according to the ratio of the height of the adapter 2 to be adjusted to the distance between two adjacent limiting mechanisms 11, so as to adjust the position of the adapter 2 and further adjust the height of the adapter 2.

It should be noted that the fixing frame 1 has scale marks along its length direction, so that the position of the adaptor 2 after adjustment can be determined based on the height of the adaptor 2 to be adjusted and the scale marks on the fixing frame 1, so as to realize the quick adjustment of the position of the adaptor 2.

In addition, when a plurality of limiting structures are located on the front surface of the fixing frame 1, two adjacent limiting structures 11 are distributed along the width direction of the fixing frame 1 in a staggered manner. Like this, when guaranteeing that adaptor 2 is detachable on stop gear 11, can also further reduce the distance between two adjacent stop gear 11 to the adjustment accuracy of the height of adaptor 2 can further be improved. Illustratively, the distance between two adjacent limiting mechanisms 11 is 4 mm.

In the embodiment of the application, when the projection screen is hung through the mounting structure, the fixing frame is fixed on the bearing body based on the fixing hole of the fixing frame, then the adapter is limited on any limiting mechanism, and the projection screen is hung through the hanging part of the adapter; when the hanging height of the projection screen is inappropriate, the adapter piece only needs to be taken down after the projection screen is taken down, and the adapter piece is limited at the limiting mechanisms with different heights, so that the height of the adapter piece can be adjusted, and the hanging height of the projection screen can be adjusted. Thus, the efficiency of adjusting the hanging height of the projection screen is certainly improved compared to the operation of detaching the fixing bolt in the related art. In addition, when the adapter is limited on the limiting mechanism, the first extension part is abutted to the fixing frame, and/or the gravity center of the adapter is adjusted through the second extension part, so that the adapter is prevented from inclining and falling off from the fixing frame, and the suspension efficiency of the projection screen is improved.

The above description is only illustrative of the embodiments of the present application and is not intended to limit the embodiments of the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

1. A mounting structure for a projection screen, the mounting structure comprising:

2. The mounting structure according to claim 1, wherein the second extension extends in a direction perpendicular to an abutting surface of the fixing frame for abutting against the carrier.

3. The mounting structure according to claim 1 or 2, wherein the fixing frame has a stopper bar, the engaging groove is slidable in a width direction of the limiting mechanism, and the stopper bar is used for limiting the second extending portion.

4. The mounting structure according to claim 1, wherein the fixing frame comprises a body having a U-shaped cross section and a fixing portion, the fixing portion is fixed to an end surface and/or at least one opening side of the body, and the plurality of limiting mechanisms are located on the body.

5. The mounting structure according to claim 4, wherein the fixing portion is a unitary structure with the body.

6. The mounting structure according to claim 4, wherein the limiting mechanism is a rectangular through hole in the front surface of the body.

7. The mounting structure according to claim 4, wherein the stopper mechanism is a projection of a side surface of the body.

8. The mounting structure according to claim 1, wherein a plurality of said limiting mechanisms are uniformly distributed in a length direction of said fixing frame.

9. The mounting structure according to claim 1 or 8, wherein two adjacent limiting mechanisms are distributed in a staggered manner in the width direction of the fixing frame.

10. The mounting structure according to claim 1, wherein the holder has a level bubble.