CN213065453U - A installing support for splicing screen - Google Patents

Abstract

The utility model discloses an installing support for concatenation screen, include: the device comprises a prism, a first rotary seat, a second rotary seat, an angle seat, a clamping bolt, an angle display, a connecting frame and the like; the upper end of the first rotary seat and the lower end of the second rotary seat are clamped by an angle bolt; the lower end of the first swivel mount is provided with an angle seat with a cylindrical structure, a connecting column with a cylindrical structure is arranged above the second swivel mount, the connecting column is connected with an L-shaped connecting frame through a bolt, the first swivel mount, the second swivel mount, the angle seat, the clamping bolt, the angle bolt and the connecting frame form a swivel frame whole, and the swivel frame whole is divided into two groups; two groups of connecting seats and video frames are arranged on the two second rotary seats and the first rotary seat, and the connecting seats and the video frames are respectively connected with the video processor and the expansion frame; the utility model has the advantages that: the video processing equipment mounting and fixing device has the advantages that the inclination angle and the extension amount can be changed, and the video processing equipment mounting and fixing function is realized.

Description

A installing support for splicing screen

Technical Field

The utility model relates to concatenation screen field specifically is an installing support for concatenation screen.

Background

The mounting bracket for splicing the screen in the prior art can only be vertically mounted, and when some LED spliced screens are required to have a certain inclination angle, the vertical installation mode of the installation bracket for splicing the conventional screen is not only difficult in angle adjustment, when the whole LED spliced screen with the inclination angle is installed, the elongation of the upper LED spliced screen and the lower LED spliced screen has obvious change, the requirement is difficult to be fulfilled by the vertical installation mode of the installation bracket spliced by the conventional screen, moreover, the video processing equipment of the existing LED spliced screen is usually fixed on the screen display keel frame through a binding belt, a professional video processing equipment fixing device is not provided, the binding belt has certain equipment potential safety hazards after being aged, there is therefore a need in the art for a mounting bracket for a tiled screen that can support tilt and reach changes and that has video processing equipment mounting and securing features.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a installing support for splicing screen to solve the problem that mentions among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a mounting bracket for a tiled screen, comprising: the angle display device comprises a prism, a first swivel mount, a second swivel mount, an angle fixing seat, a clamping bolt, an angle display, a connecting frame, a display fixing frame, a cross beam frame, a cross groove, a countersunk head groove, a first connecting bolt, a bolt cap, a second connecting bolt, a fixing hole, a connecting seat, a video frame, a video processor, an expanding frame, a vertical hole, a cross hole, a connecting column, an angle ring, a fixing bolt, an angle seat, an observation hole and a return-to-zero hole; the first rotary seat and the second rotary seat are in a folding rod or straight rod shape, the upper end of the first rotary seat and the lower end of the second rotary seat are respectively provided with a ring structure, an angle bolt concentrically penetrates and clamps the ring structures at the upper end of the first rotary seat and the lower end of the second rotary seat, the lower end of the first rotary seat is provided with an angle fixing seat with a cylindrical structure, a connecting column with a cylindrical structure is arranged above the second rotary seat, an L-shaped connecting frame is connected onto the connecting column through a bolt, the first rotary seat, the second rotary seat, the angle fixing seat, a clamping bolt, the angle bolt and the connecting frame form a rotary frame whole, the rotary frame whole is divided into two groups, the two groups of rotary frames are oppositely arranged, the angle fixing seats below the two groups of rotary frames are concentrically penetrated and connected through the same prism, the angle fixing seats are provided with concentric holes with the longitudinal section outline and the longitudinal section outline, the two groups of rotary frames are jointly connected with, the display fixing frame is provided with two strip-shaped frames perpendicular to a connecting line of the two connecting frames, the strip-shaped frames are provided with countersunk grooves, two bolt caps are arranged in each countersunk groove, four bolt caps are arranged in total, a central connecting line between the four bolt caps is rectangular, two groups of parallel bolt caps are formed between the four bolt caps, each group of parallel bolt caps are connected with a cross beam frame through first connecting bolts, the cross beam frame is of a strip-shaped plate structure, each cross beam frame is provided with a long strip-shaped cross groove, two second connecting bolts are arranged in the cross groove of each cross beam frame, the upper ends of the first connecting bolts and the second connecting bolts are of screw structures, and the lower ends of the first connecting bolts and the second connecting bolts are of rotating handle structures; the two second rotary bases are respectively provided with a connecting seat with a block structure, the connecting seats are provided with at least two groups of bolt holes, the two groups of bolt holes are fixedly connected with a video frame through bolts, the two second rotary bases are provided with two groups of connecting seats and video frames, and a video processor is fixed between the two video frames through bolts; the two first rotary bases are respectively provided with a connecting seat, the connecting seats are fixedly connected with a video frame through bolts, two groups of connecting seats and video frames are arranged on the two first rotary bases, a stretching frame is fixed between the two video frames through bolts, the main body of the stretching frame is of a flat plate structure, two ends of the flat plate structure of the stretching frame are provided with vertical connecting plates, bolt holes for connecting the bolts are formed in the connecting plates, and the connecting plates are fixed on the connecting seats through bolt holes; the outer side of the whole rotating frame on one side is connected with an angle display.

As a further aspect of the present invention: a bolt hole is formed below the angle fixing seat, a clamping bolt is arranged in the bolt hole in a threaded fit mode, and a rotating handle is fixed at the bottom end of the clamping bolt.

As a further aspect of the present invention: the longitudinal section profile of the prism is a regular polygon, and the number of sides is at least eight.

As a further aspect of the present invention: through holes are formed in the two ends of the prism to form fixing holes.

As a further aspect of the present invention: the angle display comprises an angle ring, a fixing bolt, an angle seat, an observation hole and a return-to-zero hole; the angle circle is the arc ring structure that the angle is two hundred seventy degrees at least, and angle circle and angle bolt are concentric state, and angle circle lower extreme adopts the gim peg to fix on first swivel mount, is fixed with an angle seat on the second swivel mount, is equipped with an arc hole on the angle seat, and arc hole and angle circle are concentric, and the angle circle is embedded downthehole at the arc, and the angle circle can be around its centre of a circle at arc downthehole rotary motion, is equipped with vertical strip hole formation inspection hole on the angle seat, and the inspection hole is located the middle part directly under the angle seat.

As a further aspect of the present invention: the lower end of the angle ring is provided with a vertical strip hole to form a zeroing hole, and the projection of the connecting line of the center of the zeroing hole and the center of the observation hole is superposed with the projection of the connecting line of the center of the angle bolt and the center of the angle fixing seat.

As a further aspect of the present invention: the middle part of expansion frame is equipped with horizontally equidistant bar hole, forms the cross bore, and the cross bore both sides are equipped with equidistant bar hole, form and erect the hole.

As a further aspect of the present invention: the angle ring is provided with angle scales, and the zero returning hole is used as an angle zero point.

When the device is used, the fixing holes on the two sides of the prism are used for fixing the device on a spliced screen box body, a wall body or a frame (different mounting carriers correspond to different scenes), one device can share the same prism, the first swivel mount and the second swivel mount can rotate or fold around an angle bolt and clamp the first swivel mount and the second swivel mount by using a screwing angle bolt so as to fix the angles of the first swivel mount and the second swivel mount, and the angles of the first swivel mount and the second swivel mount can be determined through the reading of the hole site of the observation hole on the angle ring; the LED splicing screen to be installed is fixed on the cross beam frame by adopting a second connecting bolt, the first connecting bolt, the bolt cap and the second connecting bolt can be adjusted, the specific position of the second connecting bolt is adjusted to enable the second connecting bolt to correspond to the fastening hole on the LED splicing screen, then the second connecting bolt and the first connecting bolt are screwed to fix the LED splicing screen, if the LED splicing screen is provided with video processing equipment (the LED splicing screen is divided into the LED splicing screen without the video processing equipment, the video processor can be taken down from the video frame, if the LED splicing screen is not provided with the video processing equipment, the video processor can be not taken down, the LED splicing screen and the video processor are directly connected by adopting a video connecting line, an external power supply and a signal source of the video processor (the LED splicing screen with the video processing equipment is directly connected with the power supply and the signal source), and the LED splicing screen which has special requirements or is specially customized for some video processing equipment or needs to be additionally provided with a video atmosphere lamp controller In the case of the situation, the customized video processing equipment and the atmosphere lamp controller can be fixed on the expansion frame by utilizing the bolts, the vertical holes and the transverse holes on the expansion frame are used for connecting the bolts, the clamping bolt can rotate to clamp, the angle fixing seat is fixed on the prism, the longitudinal section outline of the prism is a regular polygon, the number of the edges is at least eight, namely, at least eight angles between the prism and the angle fixing seat can be adjusted, the angles of the prism and the angle fixing seat, the angle between the first rotary seat and the second rotary seat and the angle between the connecting frame and the connecting column are integrally adjusted, so that the display angle and the extension amount of the LED spliced screen can be integrally adjusted to adapt to the depth and the screen display angle of different installation scenes, a plurality of LED spliced screens can integrally have a certain inclination angle to adapt to scenes with certain angle requirements on the whole LED spliced screen, the whole LED spliced screen with a downward inclination is taken as an example, all the LED spliced screens have the same angle, but for the whole downward-inclination-angle LED spliced screen, the LED spliced screen above needs to have the larger elongation than the LED spliced screen below to adapt to inclination angle change, and the multidirectional angle change and folding length adjustment of the LED spliced screen can perfectly meet the requirement, which is the few functions of the mounting bracket for screen splicing in the prior art (the mounting bracket for screen splicing in the prior art can only be vertically mounted generally).

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a prism, angle seat, first swivel mount, second swivel mount, link, spliced pole, expansion frame establish, make the utility model discloses angle between angle, the angle between first swivel mount and the second swivel mount, link and the spliced pole that can adjust prism and angle seat through whole coordination, expansion frame can pass through bolt fastening video output equipment, makes this application have can support the inclination and stretch out the volume and change and have the fixed function of video processing equipment installation.

Drawings

Fig. 1 is a schematic perspective view of a mounting bracket for a tiled screen.

Fig. 2 is a schematic view of a back side structure of a mounting bracket for a tiled screen.

Fig. 3 is a schematic side view of a mounting bracket for a tiled screen.

Fig. 4 is a schematic front view of a mounting bracket for a tiled screen.

In the figure: 1-prism, 2-first swivel mount, 3-second swivel mount, 4-angle fixing base, 5-clamping bolt, 6-angle bolt, 7-angle display, 8-connecting frame, 9-display fixing frame, 10-beam frame, 11-transverse groove, 12-countersunk head groove, 13-first connecting bolt, 14-bolt cap, 15-second connecting bolt, 16-fixing hole, 17-connecting frame, 18-video frame, 19-video processor, 20-expanding frame, 21-vertical hole, 22-transverse hole, 23-connecting column, 71-angle ring, 72-fixing bolt, 73-angle base, 74-observation hole and 75-return-to-zero hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, in an embodiment of the present invention, an installing support for splicing screen includes: the device comprises a prism 1, a first swivel mount 2, a second swivel mount 3, an angle fixing seat 4, a clamping bolt 5, an angle bolt 6, an angle display 7, a connecting frame 8, a display fixing frame 9, a cross beam frame 10, a cross groove 11, a countersunk head groove 12, a first connecting bolt 13, a bolt cap 14, a second connecting bolt 15, a fixing hole 16, a connecting seat 17, a video frame 18, a video processor 19, an expanding frame 20, a vertical hole 21, a cross hole 22, a connecting column 23, an angle ring 71, a fixing bolt 72, an angle seat 73, an observation hole 74 and a zeroing hole 75; the first swivel mount 2 and the second swivel mount 3 are in a folding rod or straight rod shape, the upper end of the first swivel mount 2 and the lower end of the second swivel mount 3 are respectively provided with a ring structure, an angle bolt 6 concentrically penetrates and clamps the ring structures at the upper end of the first swivel mount 2 and the lower end of the second swivel mount 3, the lower end of the first swivel mount 2 is provided with an angle fixing seat 4 with a cylindrical structure, a connecting column 23 with a cylindrical structure is arranged above the second swivel mount 3, the connecting column 23 is connected with an L-shaped connecting frame 8 through a bolt, the first swivel mount 2, the second swivel mount 3, the angle fixing seat 4, a clamping bolt 5, the angle bolt 6 and the connecting frame 8 form a swivel mount whole, the swivel mount whole is divided into two groups, the two groups of swivel mounts are oppositely arranged, the angle fixing seats 4 below the two groups of swivel mounts are concentrically penetrated and connected by adopting the same prism 1, the angle fixing seat 4 is provided with concentric holes with longitudinal section outlines, the display fixing frame 9 is connected between the connecting frames 8 of the two groups of rotating frames together through bolts, two strip-shaped frames perpendicular to the connecting line of the two connecting frames 8 are arranged on the display fixing frame 9, countersunk grooves 12 are formed in the strip-shaped frames, two bolt caps 14 are arranged in each countersunk groove 12, four bolt caps 14 are arranged in total, the central connecting line between the four bolt caps 14 is rectangular, two groups of bolt caps 14 which are parallel and level are formed between the four bolt caps 14, each group of parallel and level bolt caps 14 is connected with a cross beam frame 10 together through a first connecting bolt 13, the cross beam frame 10 is of a strip-shaped plate structure, each cross beam frame 10 is provided with a strip-shaped cross groove 11, two second connecting bolts 15 are arranged in each cross groove 11 of each cross beam frame 10, the upper ends of the first connecting bolts 13 and the second connecting bolts 15 are of screw structures, and the lower ends of the rotating handle structures; the two second rotary bases 3 are respectively provided with a connecting seat 17 with a block structure, the connecting seat 17 is provided with at least two groups of bolt holes, the two groups of bolt holes are fixedly connected with a video frame 18 through bolts, the two second rotary bases 3 are provided with two groups of connecting seats 17 and video frames 18, and a video processor 19 is fixed between the two video frames 18 through bolts; the two first rotary bases 2 are respectively provided with a connecting seat 17, the connecting seats 17 are fixedly connected with a video frame 18 through bolts, the two first rotary bases 2 are respectively provided with two groups of connecting seats 17 and video frames 18, a stretching frame 20 is fixed between the two video frames 18 through bolts, the main body of the stretching frame 20 is of a flat plate structure, two ends of the flat plate structure of the stretching frame 20 are provided with vertical connecting plates, the connecting plates are provided with bolt holes for connecting the bolts, and the connecting plates penetrate through the bolts through the bolt holes and are fixed on the connecting seats 17; the outer side of the whole rotating frame on one side is connected with an angle display 7.

A bolt hole is arranged below the angle fixing seat 4, a clamping bolt 5 is matched in the bolt hole through threads, and a rotating handle is fixed at the bottom end of the clamping bolt 5.

The prism 1 has a regular polygonal profile in the form of a longitudinal section with at least eight sides.

Through holes are arranged at two ends of the prism 1 to form fixing holes 16.

The angle display 7 comprises an angle ring 71, a fixed bolt 72, an angle seat 73, an observation hole 74 and a return-to-zero hole 75; the angle ring 71 is an arc ring structure with at least two hundred seventy degrees, the angle ring 71 and the angle bolt 6 are in a concentric state, the lower end of the angle ring 71 is fixed on the first rotary seat 2 by a fixing bolt 72, an angle seat 73 is fixed on the second rotary seat 3, an arc hole is formed in the angle seat 73, the arc hole and the angle ring 71 are concentric, the angle ring 71 is embedded in the arc hole, the angle ring 71 can rotate in the arc hole around the center of the circle, an observation hole 74 is formed by vertical strip holes formed in the angle seat 73, and the observation hole 74 is located in the center of the angle seat 73.

The lower end of the angle ring 71 is provided with a vertical strip hole to form a zeroing hole 75, and the projection of the connecting line of the center of the zeroing hole 75 and the center of the observation hole 74 is superposed with the projection of the connecting line of the center of the angle bolt 6 and the center of the angle fixing seat 4.

The middle part of expansion frame 20 is equipped with the equidistant bar hole of horizontally, forms cross bore 22, and cross bore 22 both sides are equipped with equidistant bar hole, form perpendicular hole 21.

The angle ring 71 is provided with angle scales, and the zero returning hole 75 is used as an angle zero point.

When the device is used, the fixing holes 16 on the two sides of the prism 1 are used for fixing the device on a splicing screen box body, a wall body or a frame (different scenes correspond to different installation carriers), one device can share the same prism 1, the first swivel mount 2 and the second swivel mount 3 can rotate or fold around the angle bolt 6 and clamp the first swivel mount 2 and the second swivel mount 3 by screwing the angle bolt 6 so as to fix the angles of the first swivel mount 2 and the second swivel mount 3, and the angles of the first swivel mount 2 and the second swivel mount 3 can be determined through the reading of the hole sites of the observation holes 74 on the angle ring 71; the LED spliced screen to be installed is fixed on the cross beam frame 10 by adopting the second connecting bolt 15, the LED spliced screen can be fixed by adjusting the positions of the first connecting bolt 13, the bolt cap 14 and the second connecting bolt 15 and adjusting the specific position of the second connecting bolt 15 to ensure that the second connecting bolt 15 corresponds to the fastening hole on the LED spliced screen, then screwing the second connecting bolt 15 and the first connecting bolt 13, if the LED spliced screen is provided with video processing equipment (the LED spliced screen is divided into the class without the video processing equipment and provided with the video processing equipment), the video processor 19 can be taken off from the video frame 18, if the LED spliced screen is not provided with the video processing equipment, the video processor 19 can be not taken off, the LED spliced screen and the video processor 19 are directly connected by adopting a video connecting line, and an external power supply and a signal source are connected to the video processor 19 (the LED spliced screen with the video processing equipment is directly connected with the power supply and the signal source), when some conditions that the video processing equipment has special requirements or is specially customized or a video atmosphere lamp controller needs to be additionally arranged are met, the customized video processing equipment and the atmosphere lamp controller can be fixed on the expanding frame 20 by utilizing bolts, the vertical holes 21 and the transverse holes 22 on the expanding frame 20 are used for connecting the bolts, the clamping bolts 5 can rotate and clamp the video processing equipment and the atmosphere lamp controller, the angle fixing seat 4 is fixed on the prism 1, because the longitudinal section profile of the prism 1 is a regular polygon, the number of edges is at least eight, namely, at least eight angles between the prism 1 and the angle fixing seat 4 can be adjusted, the angles of the prism 1 and the angle fixing seat 4, the angle between the first rotating seat 2 and the second rotating seat 3 and the angle between the connecting frame 8 and the connecting column 23 are integrally adjusted, the display angle and the extending amount of the LED spliced screen are integrally adjusted, so as to adapt to the depth and the screen display angle of different installation, a plurality of LED concatenation screens are whole can have certain inclination to adapt to some scenes that have certain angle demand to LED concatenation screen is whole, take the whole example of LED concatenation screen at downward inclination, the angle of all LED concatenation screens is unanimous, but to downward inclination LED concatenation screen whole, the LED concatenation screen of top need have than the LED concatenation screen of below extension volume bigger adapt to the inclination and change, this demand can perfectly be solved with folding length adjustment to the multidirectional angle change of this application, this is the function that installing support of the screen concatenation of prior art conventionality has less (installing support of the screen concatenation of prior art conventionality can only install perpendicularly usually).

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein; any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A mounting bracket for a tiled screen, comprising: the device comprises a prism (1), a first rotary seat (2), a second rotary seat (3), an angle fixing seat (4), a clamping bolt (5), an angle bolt (6), an angle display (7), a connecting frame (8), a display fixing frame (9), a cross beam frame (10), a cross groove (11), a countersunk head groove (12), a first connecting bolt (13), a bolt cap (14), a second connecting bolt (15), a fixing hole (16), a connecting seat (17), a video frame (18), a video processor (19), an expanding frame (20), a vertical hole (21), a cross hole (22), a connecting column (23), an angle ring (71), a fixing bolt (72), an angle seat (73), an observation hole (74) and a zero returning hole (75); the method is characterized in that: the rotary frame is characterized in that the first rotary seat (2) and the second rotary seat (3) are in a folding rod or straight rod shape, the upper end of the first rotary seat (2) and the lower end of the second rotary seat (3) are respectively provided with a ring structure, the angle bolt (6) concentrically penetrates through and clamps the upper end of the first rotary seat (2) and the ring structure of the lower end of the second rotary seat (3), the lower end of the first rotary seat (2) is provided with an angle fixing seat (4) with a cylindrical structure, a connecting column (23) with a cylindrical structure is arranged above the second rotary seat (3), the connecting column (23) is connected with an L-shaped connecting frame (8) through bolts, the first rotary seat (2), the second rotary seat (3), the angle fixing seat (4), the clamping bolt (5), the angle bolt (6) and the connecting frame (8) form a rotary frame whole, the rotary frame whole is divided into two groups, and the two groups of rotary frames, the angle fixing seats (4) below the two groups of rotating frames are concentrically connected in a penetrating manner by adopting the same prism (1), concentric holes with the longitudinal section outline identical to that of the prism (1) are arranged on the angle fixing seats (4), the connecting frames (8) of the two groups of rotating frames are jointly connected with a display fixing frame (9) through bolts, two strip-shaped frames perpendicular to the connecting line of the two connecting frames (8) are arranged on the display fixing frame (9), countersunk head grooves (12) are arranged on the strip-shaped frames, two bolt caps (14) are arranged in each countersunk head groove (12), the total number of the four bolt caps (14) is four, the central connecting line between the four bolt caps (14) is rectangular, two groups of bolt caps (14) which are parallel and level are arranged up and down are formed between the four bolt caps (14), the bolt caps (14) of each group of parallel and level are all connected with a transverse beam frame (10) through first connecting bolts (13), and the transverse beam frame (10), each transverse beam frame (10) is provided with a strip-shaped transverse groove (11), two second connecting bolts (15) are arranged in the transverse groove (11) of each transverse beam frame (10), the upper ends of the first connecting bolts (13) and the second connecting bolts (15) are of screw rod structures, and the lower ends of the first connecting bolts and the second connecting bolts are of rotating handle structures; the two second rotary bases (3) are respectively provided with a connecting seat (17) with a block structure, the connecting seat (17) is provided with at least two groups of bolt holes, the two groups of bolt holes are fixedly connected with a video frame (18) through bolts, the two second rotary bases (3) are respectively provided with two groups of connecting seats (17) and video frames (18), and a video processor (19) is fixed between the two video frames (18) through bolts; the two first rotating bases (2) are respectively provided with a connecting base (17), the connecting bases (17) are fixedly connected with a video frame (18) through bolts, two groups of connecting bases (17) and video frames (18) are arranged on the two first rotating bases (2), a stretching frame (20) is fixed between the two video frames (18) through bolts, the main body of the stretching frame (20) is of a flat plate structure, two ends of the flat plate structure of the stretching frame (20) are provided with vertical connecting plates, bolt holes for connecting the bolts are formed in the connecting plates, and the connecting plates are fixed on the connecting bases (17) through bolt holes penetrating bolts; the angle display (7) is connected to the outer side of the whole rotating frame on one side.

2. A mounting bracket for a tiled screen according to claim 1, wherein: a bolt hole is arranged below the angle fixing seat (4), a clamping bolt (5) is arranged in the bolt hole in a threaded fit mode, and a rotating handle is fixed at the bottom end of the clamping bolt (5).

3. A mounting bracket for a tiled screen according to claim 1, wherein: the longitudinal section profile of the prism (1) is a regular polygon, and the number of sides is at least eight.

4. A mounting bracket for a tiled screen according to claim 1, wherein: through holes are formed in two ends of the prism (1) to form fixing holes (16).

5. A mounting bracket for a tiled screen according to claim 1, wherein: the angle display (7) comprises an angle ring (71), a fixing bolt (72), an angle seat (73), an observation hole (74) and a zero returning hole (75); the angle circle (71) is the arc ring structure that the angle is two hundred seventy degrees at least, and angle circle (71) and angle bolt (6) are concentric state, and angle circle (71) lower extreme adopts gim peg (72) to fix on first swivel mount (2), is fixed with an angle seat (73) on second swivel mount (3), is equipped with an arc hole on angle seat (73), and arc hole and angle circle (71) are concentric, and angle circle (71) are embedded downthehole at the arc, and angle circle (71) can be around its centre of a circle at arc downthehole rotary motion, be equipped with vertical strip hole formation observation hole (74) on angle seat (73), and observation hole (74) are located angle seat (73) middle part.

6. A mounting bracket for a tiled screen according to claim 5, wherein: the lower end of the angle ring (71) is provided with a vertical strip hole to form a zero returning hole (75), and the projection of the connecting line of the center of the zero returning hole (75) and the center of the observation hole (74) is superposed with the projection of the connecting line of the center of the angle bolt (6) and the center of the angle fixing seat (4).

7. A mounting bracket for a tiled screen according to claim 1, wherein: the middle part of expansion frame (20) is equipped with the equidistant bar hole of horizontally, forms cross bore (22), and cross bore (22) both sides are equipped with equidistant bar hole, form and erect hole (21).

8. A mounting bracket for a tiled screen according to claim 5, wherein: the angle ring (71) is provided with angle scales, and the zero returning hole (75) is used as an angle zero point.

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