CN115264299A

CN115264299A - Multimedia display equipment and method

Info

Publication number: CN115264299A
Application number: CN202210970691.2A
Authority: CN
Inventors: 刘泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-13
Filing date: 2022-08-13
Publication date: 2022-11-01

Abstract

The invention relates to the technical field of multimedia equipment, in particular to multimedia display equipment and a method, wherein the multimedia display equipment comprises a fixed block, a display unit, a supporting unit, a hoisting unit and a wall hanging unit; the existing multimedia display device has the following problems: the display screen cannot be suitable for other installation modes, so that the installation of the display screen has limitation; the inclination angle of the display screen cannot be adjusted, so that the display screen cannot be suitable for different use occasions; the display screen can stand on the ground for use, can be hung on the top of a wall body for use through the hanging unit, and can be hung on the wall for use through the wall hanging unit, so that the display screen can be applied to different use occasions; according to the invention, the rectangular frame can drive the display screen to rotate correspondingly by changing the length of the adjustable telescopic plate, so that the inclination angle of the display screen can be adjusted conveniently.

Description

Multimedia display equipment and method

Technical Field

The invention relates to the technical field of multimedia equipment, in particular to multimedia display equipment and a multimedia display method.

Background

Multimedia can be understood as a general term of various media such as characters, graphic images, animation, sound, video and the like which directly act on human senses, video clips, pictures, sound and characters can be transmitted to a carrier by the multimedia through a high-speed transmission technology, and when the multimedia is used, the content output by the multimedia needs to be displayed through a display device.

Multimedia display devices are proposed in the prior art, for example: the multimedia display device with good display effect disclosed in the Chinese patent application with the publication number of CN111065241A is provided with four display screens, so that people can conveniently observe the display screens from all directions, an upper connecting frame and a lower connecting frame form a frame, an upper connecting rod and a lower connecting rod play a reinforcing role in a mounting frame, the display screens are radiated when working through a fan, and the influence of external light on the display screens is reduced through a baffle plate.

However, the above patents have the following problems: 1. if the inside roof of building can't bear the gravity of display screen, consequently the display screen can't be installed on the inside roof of building, in addition, the display screen can't be applicable to other mounting means to there is the limitation in the installation of display screen.

2. Because go up the distance between connection frame, last connecting rod and lower connection frame, the lower connecting rod all can't adjust, consequently the inclination of display screen can't be adjusted to the display screen can't be applicable to different use occasions.

Disclosure of Invention

In order to solve the problems, the invention provides multimedia display equipment which comprises a fixed block, a display unit, a supporting unit, a hoisting unit and a wall hanging unit, wherein the display unit is arranged at the left end of the fixed block, the supporting unit is arranged at the lower end of the fixed block, the hoisting unit is arranged at the upper end of the fixed block, and the wall hanging unit is arranged at the right end of the fixed block.

Display element includes locating plate, pivot, rectangle frame, adjustable expansion plate, display screen and clean subassembly, wherein: the left end middle part of fixed block is provided with the locating plate, and the left end of locating plate is rotated through the pivot and is provided with the rectangle frame, and it has adjustable expansion plate to articulate between the right-hand member of rectangle frame and the left end of fixed block, and adjustable expansion plate is located the top of locating plate, installs the display screen through the detachable mode in the rectangle frame, and is provided with clean subassembly on the rectangle frame.

The supporting unit comprises a groove, an inserting block, a supporting bracket, an adjusting piece, a bottom plate and a telescopic limiting plate, wherein: the lower extreme of fixed block is seted up flutedly, slides through the detachable mode in the recess and is provided with the grafting piece, and the outer wall of grafting piece just is close to its downside and installs the support bracket, and the fixed block supports and leans on the support bracket, and the lower extreme of grafting piece is provided with the bottom plate through the regulating part, and two flexible limiting plates are installed to the front and back symmetry between support bracket and the bottom plate.

As a preferred technical scheme of the present invention, the hoisting unit includes an accommodation cavity, a U-shaped frame, a locking screw, an installation block, and a receiving plate, wherein: the inside of fixed block and be close to its upside and open and be equipped with and hold the cavity, hold the cavity upper end and run through and set up a plurality of screw holes of arranging according to the matrix, the upper end joint of fixed block has the U-shaped frame of establishing of falling, U-shaped frame upper end is provided with a plurality of locking screw rods of arranging according to the matrix, locking screw rod's lower extreme passes through screw-thread fit's mode and screw hole looks spiro union, the upper end of U-shaped frame and the inboard that is located locking screw rod are provided with the installation piece, install the piece upper end and accept the board, it is connected with the top of wall to accept the board.

As a preferred technical scheme of the invention, the adjusting piece consists of a positioning block, a threaded cylinder, a rotating screw and a belt, wherein: a plurality of locating pieces are installed to bottom plate upper end from front to back equidistant, and a screw thread section of thick bamboo is installed to the locating piece upper end, and screw thread section of thick bamboo upper end is provided with the rotation screw rod through screw-thread fit's mode, is connected through the belt between a plurality of threaded rods, and the threaded rod outer wall has seted up the ring channel, and the belt joint is in the ring channel.

As a preferred technical scheme of the invention, the cleaning assembly comprises a through groove, a connecting block, a linkage strip, a discharging hole and a collecting frame, wherein: logical groove has all been seted up to both sides around the rectangle frame, leads to the groove and is located the left side of display screen, leads to the inslot and slides and be provided with the connecting block, and the linkage strip is installed to the opposite side of two connecting blocks, and the lower extreme of rectangle frame is equidistant runs through from the front to the back and has been seted up a plurality of blanking holes, and the lower extreme of rectangle frame installs through the detachable mode and collects the frame, and the blanking hole is linked together with collection frame inside.

As a preferable technical scheme of the invention, the middle part of one side of the linkage strip, which is close to the display screen, is provided with the soft hairbrush through the supporting plate, one side of the supporting plate, which is close to the display screen, is provided with a plurality of jacking and extending spring rods at equal intervals from front to back and in an up-and-down symmetrical manner, and one ends, which are far away from the supporting plate, of the plurality of jacking and extending spring rods on the same side of the soft hairbrush are jointly provided with the sponge cushion in a detachable manner.

As a preferred technical solution of the present invention, the wall-hanging unit includes a reinforcing plate, a clamping plate, and a bearing plate, wherein: the reinforcing plate is installed to the right-hand member of fixed block, and the right-hand member of reinforcing plate is provided with the joint board, and the draw-in groove has been seted up to the lower extreme of joint board, is provided with the bearing plate through the detachable mode in the draw-in groove, and the right-hand member of bearing plate is installed in the lateral wall of wall.

As a preferred technical scheme of the invention, a reinforcing plate is arranged on the inner wall of the upper side of the accommodating cavity, a plurality of positioning nuts corresponding to the locking screw rods are arranged at the lower ends of the reinforcing plate, and the positioning nuts are connected with the locking screw rods in a thread fit manner.

As a preferable technical solution of the present invention, the left side of the lower end of the rectangular frame is an inclined plane, and a distance between the inclined plane and the display screen is gradually reduced from top to bottom.

In addition, the invention provides a using method of the multimedia display equipment, which comprises the following steps:

s1: the fixing block is arranged on the supporting unit, so that the display screen can stand on the ground for use, and then the height of the display screen is adjusted through the supporting unit.

S2: the fixing block is arranged on the hoisting unit, so that the display screen can be hoisted for use.

S3: the fixed block is arranged on the wall-hanging unit, so that the display screen can be hung on the side wall of the wall for use.

S4: the inclination angle of the display screen is adjusted through the display unit, the display screen can be cleaned through the display unit, and dust is prevented from remaining on the screen of the display screen.

The invention has the beneficial effects that: 1. the display screen can stand on the ground for use through the supporting unit, can be hung on the top of a wall body for use through the hoisting unit, and can be hung on the wall for use through the wall hanging unit, so that the display screen can be applied to different use occasions.

2. The display unit provided by the invention can enable the rectangular frame to drive the display screen to rotate correspondingly by changing the length of the adjustable expansion plate, so that the inclination angle of the display screen can be adjusted conveniently.

3. The supporting unit provided by the invention can support and limit the fixed block through the insertion block and the supporting bracket, so that the fixed block has certain stability, the fixed block and the display screen on the left side of the fixed block cannot shake randomly in the use process, and in addition, the heights of the fixed block and the display screen can be adjusted by rotating and rotating the screw rod.

4. The hoisting unit provided by the invention has the advantages that the fixing block is clamped with the U-shaped frame through the locking screw, then the bearing plate is arranged at the top of the cavity wall body, the hoisting use of the display screen can be realized, in the period, the fixing block can be prevented from being deformed due to long-time hoisting state through the reinforcing plate, the locking screw can be prevented from randomly rotating through the positioning nut to enable the locking screw to fall off from the positioning nut, and further, the potential safety hazard during the hoisting use of the display screen is avoided.

5. The cleaning assembly provided by the invention can sweep dust on the surface of the display screen through the linkage strip driving the soft hairbrush, and meanwhile, the linkage strip driving the spongy cushion can wipe off the dust remained on the surface of the display screen, so that the cleaning effect on the display screen is enhanced.

6. According to the invention, the dust scattered on the surface of the display screen can be guided through the inclined surface at the lower end of the rectangular frame, so that the dust falls into the collecting frame after passing through the feed opening, and the dust is prevented from remaining at the bottom of the display screen.

7. The invention can limit the support bracket through the telescopic limit plate, so that the support bracket and the insertion block have stability in the moving process and the using process, and the stability of the display screen when the display screen is placed on the insertion block for use is ensured.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a sectional view (from front to back) of the fixing block and the rectangular frame of the present invention.

Figure 3 is a cut-away view of the rectangular frame, display screen and cleaning assembly of the present invention.

Fig. 4 is a partial enlarged view of the present invention at E of fig. 3.

Fig. 5 is a perspective view illustrating a fixing block and a supporting unit according to the present invention.

Fig. 6 is a schematic perspective view of the fixing block, the display unit and the lifting sheet of the present invention.

Fig. 7 is an exploded sectional view (viewed from the front to the rear) of the fixing block, the supporting unit, the lifting unit, and the wall hanging unit of the present invention.

In the figure: 1. a fixed block; 2. a display unit; 21. positioning a plate; 22. a rotating shaft; 23. a rectangular frame; 24. an adjustable expansion plate; 25. a display screen; 26. a cleaning assembly; 261. a through groove; 262. connecting blocks; 263. a linkage bar; 264. a blanking hole; 265. a collection frame; 266. a soft brush; 267. a spring rod is extended in a jacking way; 268. a sponge cushion; 3. a support unit; 31. a groove; 32. an insertion block; 33. a support bracket; 34. an adjustment member; 341. positioning blocks; 342. a threaded barrel; 343. rotating the screw; 344. a belt; 35. a base plate; 36. a telescopic limit plate; 4. hoisting the unit; 41. an accommodating cavity; 411. a reinforcing plate; 412. positioning a nut; 42. a U-shaped frame; 43. locking the screw rod; 44. mounting blocks; 45. a bearing plate; 5. a wall-hanging unit; 51. a reinforcing plate; 52. a clamping plate; 53. a bearing plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1, the multimedia display device includes a fixing block 1, a display unit 2, a supporting unit 3, a hoisting unit 4, and a wall hanging unit 5, the display unit 2 is disposed at the left end of the fixing block 1, the supporting unit 3 is mounted at the lower end of the fixing block 1, the hoisting unit 4 is disposed at the upper end of the fixing block 1, and the wall hanging unit 5 is mounted at the right end of the fixing block 1.

Referring to fig. 1, 2, 3 and 4, the display unit 2 includes a positioning plate 21, a rotating shaft 22, a rectangular frame 23, an adjustable expansion plate 24, a display screen 25 and a cleaning assembly 26, wherein: a positioning plate 21 is arranged in the middle of the left end of the fixing block 1, a rectangular frame 23 is rotatably arranged at the left end of the positioning plate 21 through a rotating shaft 22, an adjustable expansion plate 24 is hinged between the right end of the rectangular frame 23 and the left end of the fixing block 1, the adjustable expansion plate 24 can expand and contract under the action of external force, when no external force is applied, the adjustable expansion plate 24 is automatically locked, the adjustable expansion plate 24 is positioned above the positioning plate 21, a display screen 25 is detachably arranged in the rectangular frame 23, an inclined plane is arranged on the left side of the lower end of the rectangular frame 23, the distance between the inclined plane and the display screen 25 is gradually reduced from top to bottom, and a cleaning assembly 26 is arranged on the rectangular frame 23; cleaning assembly 26 includes logical groove 261, connecting block 262, linkage strip 263, unloading hole 264 and collection frame 265, wherein: the front side and the rear side of the rectangular frame 23 are both provided with a through groove 261, the through groove 261 is positioned on the left side of the display screen 25, the through groove 261 is provided with connecting blocks 262 in a sliding manner, the opposite sides of the two connecting blocks 262 are provided with linkage strips 263, the lower end of the rectangular frame 23 penetrates through the through groove from front to back at equal intervals to be provided with a plurality of blanking holes 264, the lower end of the rectangular frame 23 is provided with a collecting frame 265 in a detachable manner, and the blanking holes 264 are communicated with the inside of the collecting frame 265; the middle part that linkage strip 263 is close to one side of display screen 25 is provided with soft brush 266 through the backup pad, and the backup pad is close to one side of display screen 25 from the front to the back equidistant and the longitudinal symmetry be provided with a plurality of top extension spring poles 267, soft brush 266 is provided with foam-rubber cushion 268 through the detachable mode with the one end that backup pad was kept away from to a plurality of top extension spring poles 267 of one side, top extension spring pole 267 is applied directional display screen 25's extrusion force to foam-rubber cushion 268 all the time, make foam-rubber cushion 268 and display screen 25 slide conflict, be convenient for installation and the change of foam-rubber cushion 268 through the detachable mode.

When the adjustable expansion plate 24 works, firstly, the length of the adjustable expansion plate 24 is adjusted, so that the adjustable expansion plate 24 drives the rectangular frame 23 to rotate by taking the axis of the rotating shaft 22 as a circle center, when the length of the adjustable expansion plate 24 is gradually increased, the rectangular frame 23 rotates anticlockwise, otherwise, the rectangular frame 23 rotates clockwise, and therefore the rectangular frame 23 can drive the display screen 25 to correspondingly rotate, so that the inclination angle of the display screen 25 can be adjusted conveniently; after the display screen 25 is used for a period of time, dust is easily attached to the surface of the display screen 25, the display screen 25 needs to be cleaned regularly, the linkage strip 263 is driven to move up and down along the through groove 261 through the connecting block 262, the soft hairbrush 266 is driven to sweep away the dust on the surface of the display screen 25 in the process that the linkage strip 263 moves up and down, meanwhile, the dust remained on the surface of the display screen 25 can be erased through the sponge pad 268, so that the cleaning effect on the display screen 25 is enhanced, a little dust easily drops downwards along the surface of the display screen 25, and then the dust scattered on the surface of the display screen 25 is guided by the inclination of the lower end of the rectangular frame 23, so that the dust drops in the collecting frame 265 after passing through the discharging port, and the dust remained at the bottom of the display screen 25 is prevented.

Referring to fig. 1, 2, 5 and 7, the supporting unit 3 includes a groove 31, an insertion block 32, a supporting bracket 33, an adjusting member 34, a bottom plate 35 and a telescopic limiting plate 36, wherein: the lower end of the fixed block 1 is provided with a groove 31, an inserting block 32 is arranged in the groove 31 in a sliding manner in a detachable manner, the fixed block 1 can be supported and limited by matching the groove 31 and the inserting block 32, a supporting bracket 33 is arranged on the outer wall of the inserting block 32 and close to the lower side of the inserting block, the fixed block 1 abuts against the supporting bracket 33, upward supporting force can be applied to the fixed block 1 through the supporting bracket 33 so as to improve the stability of the fixed block 1, the lower end of the inserting block 32 is provided with a bottom plate 35 through an adjusting piece 34, two telescopic limiting plates 36 are symmetrically arranged between the supporting bracket 33 and the bottom plate 35 in a front-back manner, the telescopic limiting plates 36 can be stretched under the action of external force, the supporting bracket 33 can be limited through the telescopic limiting plates 36, the supporting bracket 33 and the inserting block 32 can only move up and down in a straight line, and the supporting plate can not tilt left and right, so that the stability of the supporting bracket 33 and the inserting block 32 in the moving process and the using process is improved; the adjusting member 34 is composed of a positioning block 341, a threaded cylinder 342, a rotating screw 343, and a belt 344, wherein: a plurality of locating pieces 341 are installed to bottom plate 35 upper end from front to back equidistant, threaded cylinder 342 is installed to locating piece 341 upper end, threaded cylinder 342 upper end is provided with through screw-thread fit's mode and rotates screw rod 343, be connected through belt 344 between a plurality of threaded rods, and the threaded rod outer wall has seted up the ring channel, belt 344 joint is in the ring channel, can carry on spacingly to belt 344 through the ring channel, prevent that threaded rod from rotating the in-process belt 344 and from droing of threaded rod outer wall, setting through belt 344, rotatory arbitrary one rotates screw rod 343 alright make a plurality of rotation screw rods 343 rotate simultaneously.

During operation, install fixed block 1 on grafting piece 32 through the cooperation of recess 31 with grafting piece 32, make the bottom of fixed block 1 support and lean on supporting bracket 33, make display screen 25 can stand and use subaerial (as shown in fig. 5), can support spacingly fixed block 1 through grafting piece 32 and supporting bracket 33, make fixed block 1 have certain stability, and fixed block 1 and its left display screen 25 can not rock at will in the use, in addition, rotatory screw 343 that rotates, it can revolve the screw thread section of thick bamboo 342 or revolve out from the screw thread section of thick bamboo 342 to rotate screw 343 pivoted in-process, thereby can drive grafting piece 32 rebound or rebound through rotating screw 343, and then can adjust the height of fixed block 1 and display screen 25, so that display screen 25 is adapted to different use occasions.

Referring to fig. 6 and 7, the hoisting unit 4 includes a housing cavity 41, a U-shaped frame 42, a locking screw 43, a mounting block 44 and a receiving plate 45, wherein: an accommodating cavity 41 is formed in the fixing block 1 and close to the upper side of the fixing block, a plurality of threaded holes distributed according to a matrix are formed in the upper end of the accommodating cavity 41 in a penetrating mode, an inverted U-shaped frame 42 is clamped at the upper end of the fixing block 1, a plurality of locking screws 43 distributed according to the matrix are arranged at the upper end of the U-shaped frame 42, the lower ends of the locking screws 43 are in threaded connection with the threaded holes in a threaded matching mode, an installing block 44 is arranged at the upper end of the U-shaped frame 42 and located on the inner side of the locking screws 43, a bearing plate 45 is installed at the upper end of the installing block 44, and the bearing plate 45 is connected with the top of a wall surface; a reinforcing plate 411 is arranged on the inner wall of the upper side of the accommodating cavity 41, a plurality of positioning nuts 412 corresponding to the locking screws 43 are arranged at the lower end of the reinforcing plate 411, and the positioning nuts 412 are connected with the locking screws 43 in a threaded fit manner; during operation, the fixing block 1 is clamped with the U-shaped frame 42, the locking screw 43 sequentially penetrates through the U-shaped frame 42, the threaded hole and the reinforcing plate 411 and then is screwed into the positioning nut 412, the strength of the threaded hole of the fixing block 1 can be enhanced through the reinforcing plate 411, the fixing block 1 is prevented from being in a hoisting state for a long time and deforming, the locking screw 43 can be limited through the positioning nut 412, the locking screw 43 is prevented from rotating randomly and falling off from the positioning nut 412, potential safety hazards during hoisting use of the display screen 25 are further avoided, and the bearing plate 45 is installed at the top of the cavity wall body to enable the display screen 25 to be hoisted at the top of the wall body (as shown in fig. 6).

Referring to fig. 7, the wall built-up unit 5 includes a reinforcing plate 51, a clamping plate 52, and a bearing plate 53, wherein: a reinforcing plate 51 is installed at the right end of the fixing block 1, a clamping plate 52 is arranged at the right end of the reinforcing plate 51, a clamping groove is formed in the lower end of the clamping plate 52, a bearing plate 53 is detachably arranged in the clamping groove, and the right end of the bearing plate 53 is installed on the side wall of the wall surface; the during operation is connected joint board 52 with bearing plate 53 for reinforcing plate 51, fixed block 1 and display screen 25 are all installed at the wall lateral wall along with joint board 52, thereby can realize that display screen 25 hangs and uses on the wall, can strengthen the intensity on fixed block 1 right side through reinforcing plate 51, avoid fixed block 1 to use for a long time and take place to warp.

s1: install fixed block 1 on the grafting piece 32 for the bottom of fixed block 1 supports and leans on support bracket 33, makes display screen 25 stand and uses on subaerial, then the rotatory screw rod 343 that rotates can drive the grafting piece 32 upward movement or move down through rotating screw rod 343, and then can adjust the height of fixed block 1 and display screen 25.

S2: the fixing block 1 is clamped with the U-shaped frame 42, the locking screw 43 sequentially penetrates through the U-shaped frame 42, the threaded hole and the reinforcing plate 411 and then is screwed into the positioning nut 412, and then the bearing plate 45 is installed at the top of the cavity wall body, so that the display screen 25 can be hung on the top of the wall body for use.

S3: the clamping plate 52 is connected with the bearing plate 53, so that the reinforcing plate 51, the fixing block 1 and the display screen 25 are all mounted on the side wall of the wall along with the clamping plate 52, and the display screen 25 can be hung on the wall for use.

S4: the length of the adjustable expansion plate 24 is adjusted, the adjustable expansion plate 24 drives the rectangular frame 23 to rotate, and the rectangular frame 23 can drive the display screen 25 to correspondingly rotate so as to adjust the inclination angle of the display screen 25; drive linkage strip 263 through connecting block 262 and reciprocate along logical groove 261, and the in-process that linkage strip 263 reciprocated drives soft brush 266 and foam-rubber cushion 268 and carries out cleaning to the surface of display screen 25, drops in collecting frame 265 after the feed opening along unrestrained dust on display screen 25 surface afterwards to prevent that the bottom of display screen 25 from remaining the dust.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a multimedia display equipment, includes fixed block (1), display element (2), support element (3), hoist and mount unit (4) and wall built-up unit (5), its characterized in that: the left end of fixed block (1) is provided with display element (2), and supporting element (3) are installed to fixed block (1) lower extreme, and fixed block (1) upper end is provided with hoist and mount unit (4), and wall built-up unit (5) are installed to fixed block (1) right-hand member, wherein:

display element (2) include locating plate (21), pivot (22), rectangle frame (23), adjustable expansion plate (24), display screen (25) and clean subassembly (26), wherein: a positioning plate (21) is arranged in the middle of the left end of the fixing block (1), a rectangular frame (23) is rotatably arranged at the left end of the positioning plate (21) through a rotating shaft (22), an adjustable expansion plate (24) is hinged between the right end of the rectangular frame (23) and the left end of the fixing block (1), the adjustable expansion plate (24) is located above the positioning plate (21), a display screen (25) is detachably mounted in the rectangular frame (23), and a cleaning assembly (26) is arranged on the rectangular frame (23);

support element (3) include recess (31), grafting piece (32), support bracket (33), regulating part (34), bottom plate (35) and flexible limiting plate (36), wherein: the lower extreme of fixed block (1) is seted up flutedly (31), slides through the detachable mode in recess (31) and is provided with plug block (32), and the outer wall of plug block (32) just is close to its downside and installs support bracket (33), and fixed block (1) supports and leans on support bracket (33), and the lower extreme of plug block (32) is provided with bottom plate (35) through adjusting part (34), and two flexible limiting plate (36) are installed to the symmetry around between support bracket (33) and bottom plate (35).

2. The multimedia display device of claim 1, wherein: hoist and mount unit (4) are including holding cavity (41), U-shaped frame (42), locking screw (43), installation piece (44) and accept board (45), wherein: the inside of fixed block (1) just is close to its upside and opens and be equipped with and hold cavity (41), hold cavity (41) upper end and run through and set up a plurality of screw holes of arranging according to the matrix, the upper end joint of fixed block (1) has the U-shaped frame (42) of establishing of falling, U-shaped frame (42) upper end is provided with a plurality of locking screw (43) of arranging according to the matrix, the lower extreme of locking screw (43) passes through screw-thread fit's mode and screw hole looks spiro union, the upper end of U-shaped frame (42) and the inboard that is located locking screw (43) are provided with installation piece (44), installation piece (44) upper end is installed and is accepted board (45), it is connected with the top of wall to accept board (45).

3. The multimedia display device of claim 1, wherein: the adjusting part (34) is composed of a positioning block (341), a thread cylinder (342), a rotating screw rod (343) and a belt (344), wherein: a plurality of locating pieces (341) are installed to bottom plate (35) upper end from front to back equidistant, and a screw thread section of thick bamboo (342) is installed to locating piece (341) upper end, and screw thread section of thick bamboo (342) upper end is provided with through screw-thread fit's mode and rotates screw rod (343), is connected through belt (344) between a plurality of threaded rods, and the annular groove has been seted up to the threaded rod outer wall, and belt (344) joint is in the annular groove.

4. The multimedia display device of claim 1, wherein: the cleaning assembly (26) comprises a through groove (261), a connecting block (262), a linkage strip (263), a blanking hole (264) and a collecting frame (265), wherein: lead to groove (261) has all been seted up to both sides around rectangle frame (23), lead to groove (261) and be located the left side of display screen (25), it is provided with connecting block (262) to slide in leading to groove (261), linkage strip (263) are installed to the opposite side of two connecting blocks (262), the lower extreme of rectangle frame (23) is run through from the front to the back equidistant and has been seted up a plurality of unloading holes (264), and the lower extreme of rectangle frame (23) installs through the detachable mode and collects frame (265), unloading hole (264) and collection frame (265) are inside to be linked together.

5. The multimedia display device according to claim 4, wherein: the middle part of one side that linkage strip (263) are close to display screen (25) is provided with soft brush (266) through the backup pad, and one side that the backup pad is close to display screen (25) is equidistant and the longitudinal symmetry is provided with a plurality of top and stretches spring beam (267) from the front to the back, and the one end that the backup pad was kept away from to a plurality of top of soft brush (266) with one side stretches spring beam (267) is provided with foam-rubber cushion (268) through the detachable mode jointly.

6. The multimedia display device of claim 1, wherein: wall built-up unit (5) include reinforcing plate (51), joint board (52) and bearing plate (53), wherein: reinforcing plate (51) are installed to the right-hand member of fixed block (1), and the right-hand member of reinforcing plate (51) is provided with joint board (52), and the draw-in groove has been seted up to the lower extreme of joint board (52), is provided with bearing plate (53) through the detachable mode in the draw-in groove, and the right-hand member of bearing plate (53) is installed in the lateral wall of wall.

7. A multimedia display device according to claim 2, characterized in that: the inner wall of the upper side of the accommodating cavity (41) is provided with a reinforcing plate (411), the lower end of the reinforcing plate (411) is provided with a plurality of positioning nuts (412) corresponding to the positions of the locking screws (43), and the positioning nuts (412) are connected with the locking screws (43) in a threaded fit mode.

8. The multimedia display device of claim 1, wherein: the left side of the lower end of the rectangular frame (23) is an inclined plane, and the distance between the inclined plane and the display screen (25) is gradually reduced from top to bottom.