阅读说明：本技术 一种教学显示屏定位移动支架 (Teaching display screen positioning movable support ) 是由 金美林 吕晓宁 于 2021-08-10 设计创作，主要内容包括：本发明涉及一种教学显示屏定位移动支架,包括底座与支撑架,所述底座上端面固定安装有支撑架,所述底座包括台形块一、伸缩架、电动推杆、台形块二、万向轮、固定框板、吸盘板、螺纹柱与定位柱,所述支撑架包括支撑柱一、支撑柱二、角形板、支撑板一、支撑板二与连接架,本发明通过底座与支撑架相配合,可根据教学显示屏的尺寸进行调整,从而增大定位移动支架可适用的教学显示屏的尺寸范围,通过底座对定位移动支架进行定位,防止其在使用过程中因受力,从而发生移动。(The invention relates to a positioning and moving support for a teaching display screen, which comprises a base and a support frame, wherein the support frame is fixedly arranged on the upper end surface of the base, the base comprises a first table-shaped block, a telescopic frame, an electric push rod, a second table-shaped block, a universal wheel, a fixed frame plate, a sucker plate, a threaded column and a positioning column, and the support frame comprises a first support column, a second support column, an angle plate, a first support plate, a second support plate and a connecting frame.)

1. A positioning movable support for a teaching display screen comprises a base (1) and a support frame (2), wherein the support frame (2) is fixedly arranged on the upper end face of the base (1); wherein:

the base (1) comprises a first platform-shaped block (11), a telescopic frame (12), an electric push rod (13), a second platform-shaped block (14), universal wheels (15), a fixed frame plate (16), a sucker plate (17), a threaded column (18) and a positioning column (19), the left end face of the first platform-shaped block (11) is fixedly provided with the telescopic frame (12), the left end face of the telescopic frame (12) is fixedly provided with the second platform-shaped block (14), the left end of the first platform-shaped block (11) is positioned in the middle of the telescopic frame (12) and fixedly provided with the electric push rod (13), the left end of the electric push rod (13) is fixedly connected with the right end of the second platform-shaped block (14), the electric push rod (13) penetrates through the telescopic frame (12), the lower end faces of the first platform-shaped block (11) and the second platform-shaped block (14) are both fixedly provided with the universal wheels (15), the lower side of the first platform-shaped block (11) is connected with the fixed frame plate (16) in a sliding fit manner, and the lower end face of the fixed frame plate (16) is fixedly provided with the sucker plate (17), the right side of the first platform-shaped block (11) is connected with a threaded column (18) in a rotating connection mode, the threaded column (18) is connected with a fixed frame plate (16) in a threaded connection mode, the upper end of the left side of the fixed frame plate (16) is fixedly provided with a positioning column (19), and the positioning column (19) is connected with the first platform-shaped block (11) in a sliding fit mode;

support frame (2) are including support column one (21), support column two (22), angular plate (23), backup pad one (24), backup pad two (25) and link (26), end fixed mounting has support column one (21) on stage shape piece (11), end fixed mounting has support column two (22) on stage shape piece two (14), even fixed mounting has angular plate (23) between support column one (21) and support column two (22), end fixed mounting has backup pad one (24) on support column one (21), end fixed mounting has backup pad two (25) on support column two (22), fixed mounting has link (26) between backup pad one (24) and backup pad two (25).

2. The teaching display screen positioning mobile bracket of claim 1, wherein: the lower end face of the first table-shaped block (11) is located on the outer side of the universal wheel (15) and fixedly provided with a first rectangular frame plate (111), the front end and the rear end of the inner side of the first rectangular frame plate (111) are symmetrically and fixedly provided with a first electromagnetic plate (112), the lower end face of the second table-shaped block (14) is located on the outer side of the universal wheel (15) and fixedly provided with a second rectangular frame plate (141), the left end and the right end of the inner side of the second rectangular frame plate (141) are symmetrically and fixedly provided with a second electromagnetic plate (142), and the magnetism of the first electromagnetic plate (112) is the same as that of the second electromagnetic plate (142) after being electrified.

3. The teaching display screen positioning mobile bracket of claim 1, wherein: the telescopic frame (12) comprises a first fixed cylinder (121), a first square cylinder (122), a second square cylinder (123), a first limit frame block (124), a second limit frame block (125), a cylindrical spring (126) and a second fixed cylinder (127), the left end face of the first table-shaped block (11) is fixedly provided with the first fixed cylinder (121), the middle part of the first fixed cylinder (121) is connected with the first square cylinder (122) in a sliding fit manner, the outer side of the first square cylinder (122) is connected with the second square cylinder (123) in a sliding fit manner, the first adjacent square cylinder (122) and the second square cylinder (123) are connected end to end, the inner ends of the first square cylinder (122) and the second square cylinder (123) are connected in a sliding fit manner, the first limit frame blocks (124) are fixedly arranged on the outer end faces of the left side and the right side of the first square cylinder (122), and the second limit frame blocks (125) are fixedly arranged on the left side and the right side of the second square cylinder (123), a cylindrical spring (126) is fixedly connected between the adjacent square cylinders I (122), the outer side of the leftmost square cylinder I (122) is connected with a fixed cylinder II (127) in a sliding fit mode, and the left end of the fixed cylinder II (127) is fixedly connected with the table-shaped block II (14).

4. The teaching display screen positioning mobile bracket of claim 1, wherein: universal wheel (15) are including bearing (151), arch shaped plate (152), magnetism inhale board (153) and gyro wheel (154), equal fixed mounting of terminal surface has bearing (151) under platform shape piece (11) and platform shape piece two (14), equal fixed mounting in both sides has arch shaped plate (152) around the terminal surface under bearing (151), the equal fixed mounting of arch shaped plate (152) outer terminal surface of arch shaped plate (152) of both sides has magnetism to inhale board (153) around, magnetism of inhaling board (153) is opposite with the magnetism after electromagnetism board (112) circular telegram, it is connected with gyro wheel (154) to rotate through the round pin axle between the arch shaped plate (152) of both sides around.

5. The teaching display screen positioning mobile bracket of claim 1, wherein: the outer end face of the first support column (21) is uniformly and fixedly provided with a first ceramic column (211) along the circumferential direction, and the outer end face of the second support column (22) is uniformly and fixedly provided with a second ceramic column (221) along the circumferential direction.

6. The teaching display screen positioning mobile bracket of claim 1, wherein: the angle plate (23) comprises a C-shaped block (231), an inclined plate (232), a rotating shaft (233) and a positioning block (234), the C-shaped block (231) is uniformly and fixedly installed between the first support column (21) and the second support column (22), the middle of the C-shaped block (231) is connected with the inclined plate (232) in a rotating connection mode, the inclined plates (232) on the left side and the right side are rotatably connected through the rotating shaft (233), and the middle of the C-shaped block (231) is located on the lower side of the inclined plate (232) and fixedly provided with the positioning block (234).

7. The teaching display screen positioning mobile bracket of claim 1, wherein: the support plate I (24) comprises an F-shaped plate (241), a bolt column (242), a rectangular long plate (243), a right-angle-shaped hanging plate (244), a support column (245), an extrusion spring (246), an extrusion plate (247), a magnetic suction plate (248), an electromagnetic plate (249) and anti-slip rubber (250), the upper end face of the support column I (21) is fixedly provided with the F-shaped plate (241), the middle part of the F-shaped plate (241) is connected with the bolt column (242) in a threaded connection mode, the front side of the bolt column (242) is connected with the rectangular long plate (243) in a rotary connection mode, the upper side of the rectangular long plate (243) is connected with the upper side of the F-shaped plate (241) in a rotary connection mode, the right-angle-shaped hanging plate (244) is fixedly arranged on the front end face of the rectangular long plate (243), the support column (245) is uniformly and fixedly arranged on the front end face of the rectangular long plate (243), one end of the extrusion spring (246) is fixedly connected to the support column (245), other end fixed mounting has stripper plate (247), stripper plate (247) rear side is connected with the horizontal segment of right angle shape link plate (244) with sliding fit's mode, stripper plate (247) preceding terminal surface fixed mounting has magnetism suction plate (248), right angle shape link plate (244) rear end fixed mounting has electromagnetic plate (249), magnetism after electromagnetic plate (249) circular telegram is opposite with the magnetism of magnetism suction plate (248), equal fixed mounting has anti-skidding rubber (250) of electromagnetic plate (249) rear end and magnetism suction plate (248) preceding terminal surface.

8. The teaching display screen positioning mobile bracket of claim 1, wherein: the connecting frame (26) is of a telescopic structure, the middle of the connecting frame (26) is evenly provided with a limiting hole (261), a plurality of arc-shaped grooves are formed in the upper end face and the lower end face of the connecting frame (26), the arc-shaped grooves in the upper side and the lower side are symmetrically arranged, and the rubber plate (262) is fixedly mounted on the inner end faces of the arc-shaped grooves.

Technical Field

The invention relates to the technical field of teaching auxiliary tools, in particular to a positioning movable support for a teaching display screen.

Background

In order to facilitate teaching, school's teaching and the activity that has the training nature all begin to adopt the teaching display screen that has the location movable support to teach, will teach the display screen and cooperate with the location movable support to reach the purpose that can change the displacement and the direction of teaching display screen fast.

Teaching display screen with location removal support compares with teaching display screen, the requirement to the place is less, can use on most place, and be convenient for remove, consequently, the application range of the teaching display screen that has the location removal support is more and more extensive, traditional location removal support's fixed structure, be difficult to support the location to the display screen of not unidimensional, display screen to different length models, because the fixed position of display screen changes thereupon, consequently, need change according to the size of display screen and remove the support, and because the location removal support generally is indoor use, consequently, in order to guarantee that indoor plane is not damaged, can't fix between location removal support and the working plane through bolted connection's mode, consequently in the use, location removal support is very easily removed because of the atress, influence teaching.

Disclosure of Invention

In order to solve the technical problem, the invention specifically adopts the following technical scheme that the positioning movable bracket for the teaching display screen comprises a base and a supporting frame, wherein the supporting frame is fixedly arranged on the upper end surface of the base; wherein.

The base comprises a first table-shaped block, a telescopic frame, an electric push rod and a second table-shaped block, the universal wheel, the fixed frame plate, the sucker plate, the threaded column and the positioning column are fixedly arranged on the left end face of the first platform-shaped block, the expansion bracket is fixedly arranged on the left end face of the expansion bracket, the second platform-shaped block is fixedly arranged on the left end face of the first platform-shaped block, the electric push rod is fixedly arranged in the middle of the expansion bracket at the left end of the first platform-shaped block, the left end of the electric push rod is fixedly connected with the right end of the second platform-shaped block, the electric push rod penetrates through the expansion bracket, the universal wheel is fixedly arranged on the lower end faces of the first platform-shaped block and the second platform-shaped block, the fixed frame plate is connected to the lower side of the first platform-shaped block in a sliding fit manner, the sucker plate is fixedly arranged on the lower end face of the fixed frame plate, the threaded column is connected to the right side of the first platform-shaped block in a rotating connection manner, the threaded column is connected to the fixed frame plate in a threaded connection manner, the positioning column is fixedly arranged on the upper end of the left side of the fixed frame plate, and the positioning column is connected to the first platform-shaped block in a sliding fit manner; before the table-shaped block is used, the base is firstly pushed to enable the first table-shaped block to move to a proper position, at the moment, the second table-shaped block is pushed to move leftwards through the electric push rod according to the size of the display screen, after the second table-shaped block moves to a required position, the threaded column is rotated, and therefore the fixed frame plate is controlled to move downwards until the sucker plate is connected with the working plane, and finally the first table-shaped block cannot move, and the purpose that the base cannot move is achieved.

The support frame comprises a first support column, a second support column, an angular plate, a first support plate, a second support plate and a connecting frame, the first support column is fixedly installed on the upper end face of the first table-shaped block, the second support column is fixedly installed on the upper end face of the second table-shaped block, the angular plate is uniformly and fixedly installed between the first support column and the second support column, the first support plate is fixedly installed on the upper end face of the first support column, the second support plate is fixedly installed on the upper end face of the second support column, and the connecting frame is fixedly installed between the first support plate and the second support plate; when the electric push rod pushes the second table-shaped block to move leftwards, the second support column moves leftwards simultaneously, so that the angle of the angle-shaped plate is changed, the connecting frame is pulled, and after the base is positioned, the first support plate, the second support plate and the connecting frame are matched to support and position the display screen.

The first preferred technical scheme is as follows: a first rectangular frame plate is fixedly arranged on the lower end face of the platform-shaped block and positioned outside the universal wheel, a first electromagnetic plate is symmetrically and fixedly arranged at the front end and the rear end of the inner side of the first rectangular frame plate, a second rectangular frame plate is fixedly arranged on the lower end face of the second platform-shaped block and positioned outside the universal wheel, a second electromagnetic plate is symmetrically and fixedly arranged at the left end and the right end of the inner side of the second rectangular frame plate, and the magnetism of the first electromagnetic plate is the same as that of the second electromagnetic plate after the first electromagnetic plate and the second electromagnetic plate are electrified; after the base is positioned, the first electromagnetic plate and the second electromagnetic plate are electrified, and the first electromagnetic plate and the second electromagnetic plate are different in installation direction, so that the first table-shaped block and the universal wheel on the second table-shaped block turn to mutually vertical directions under the action of magnetic force, and the base cannot move further.

The preferred technical scheme is as follows: the telescopic frame comprises a first fixed cylinder, a first square cylinder, a second square cylinder, a first limiting frame, a second limiting frame, a cylindrical spring and a second fixed cylinder, wherein the first fixed cylinder is fixedly arranged on the left end face of the first table-shaped block, the middle part of the first fixed cylinder is connected with the first square cylinder in a sliding fit mode, the second square cylinder is connected to the outer side of the first square cylinder in a sliding fit mode, the first adjacent square cylinder and the second square cylinder are connected end to end, the first square cylinder and the second square cylinder are connected in a sliding fit mode, the first limiting frame is fixedly arranged on the outer end faces of the left side and the right side of the first square cylinder, the second limiting frame is fixedly arranged on the inner end faces of the left side and the right side of the second square cylinder, the cylindrical spring is fixedly connected between the first adjacent square cylinders, the outer side of the first square cylinder on the leftmost side is connected with the second fixed cylinder in a sliding fit mode, and the left end of the second fixed cylinder is fixedly connected with the second table-shaped block; the square barrel on the rightmost side is located through the fixed barrel, the square barrel is matched with the square barrel through the square barrel, so that the interference of movement of the platform-shaped block is prevented, meanwhile, the platform-shaped block is connected with the platform-shaped block, the square barrel is prevented from being separated from the square barrel through the limiting frame plate, the cylindrical spring is used for connecting the square barrel, the movement of the square barrel is buffered, and the fixed barrel is used for locating the square barrel on the leftmost side.

The preferred technical scheme is three: the universal wheel comprises a bearing, an arch-shaped plate, a magnetic attraction plate and a roller, the bearing is fixedly arranged on the lower end surfaces of the first table-shaped block and the second table-shaped block, the arch-shaped plate is fixedly arranged on the front side and the rear side of the lower end surface of the bearing, the magnetic attraction plate is fixedly arranged on the outer end surfaces of the arch-shaped plates on the front side and the rear side, the magnetism of the magnetic attraction plate is opposite to that of the electromagnetic plate after the first electromagnetic plate is electrified, and the roller is rotatably connected between the arch-shaped plates on the front side and the rear side through a pin shaft; the orientation of the roller is controlled by matching the magnetic suction plate with the first electromagnetic plate and the second electromagnetic plate.

The preferable technical scheme is four: the outer end face of the first support column is uniformly and fixedly provided with first ceramic columns along the circumferential direction, and the outer end face of the second support column is uniformly and fixedly provided with second ceramic columns along the circumferential direction; the hardness of the first support column and the first support column is respectively improved through the first ceramic column and the second ceramic column.

The preferred technical scheme is five: the angle-shaped plate comprises a C-shaped block, inclined plates, a rotating shaft and a positioning block, the C-shaped block is uniformly and fixedly arranged between the first support column and the second support column, the middle parts of the C-shaped block are connected with the inclined plates in a rotating connection mode, the inclined plates on the left side and the right side are rotatably connected through the rotating shaft, and the positioning block is fixedly arranged at the middle part of the C-shaped block, which is positioned at the lower side of the inclined plate; the inclined plates are positioned through the C-shaped blocks, the rotating shafts are used for connecting the inclined plates, and the inclined plates are prevented from inclining downwards under the action of gravity through the positioning blocks.

The preferred technical scheme is six: the first support plate comprises an F-shaped plate, a bolt column, a rectangular long plate, a right-angle-shaped hanging plate, a support column, an extrusion spring, an extrusion plate, a magnetic suction plate, an electromagnetic plate and anti-slip rubber, the upper end face of the first support column is fixedly provided with the F-shaped plate, the middle part of the F-shaped plate is connected with the bolt column in a threaded connection mode, the front side of the bolt column is connected with the rectangular long plate in a rotating connection mode, the upper side of the rectangular long plate is connected with the upper side of the F-shaped plate in a rotating connection mode, the right-angle-shaped hanging plate is fixedly arranged on the front end face of the rectangular long plate, the support column is uniformly and fixedly arranged on the front end face of the rectangular long plate, the extrusion spring is sleeved on the support column, one end of the extrusion spring is fixedly connected to the support column, the other end of the extrusion spring is fixedly provided with the extrusion plate, the rear side of the extrusion plate is connected with the horizontal section of the right-angle-shaped hanging plate in a sliding fit mode, the front end face of the extrusion plate is fixedly provided with the magnetic suction plate, the rear end face of the right-angle hanging plate is fixedly provided with an electromagnetic plate, the magnetism of the electromagnetic plate after being electrified is opposite to that of the magnetic attraction plate, and the rear end face of the electromagnetic plate and the front end face of the magnetic attraction plate are both fixedly provided with anti-skid rubber; according to the demand, through the inclination of bolt post control rectangle long slab, thereby control the inclination of display screen, cooperate through the couple on the right angle shape link plate to the display screen, fix a position the display screen, this moment through circular telegram to the electromagnetic plate, thereby make the magnetism suction plate on the stripper plate move forward under magnetic force, until the contact of couple on magnetism suction plate and the display screen and to the couple forward extrusion on the display screen, thereby carry out further location to the display screen, prevent through non-slip rubber that the couple on the display screen from receiving the scraping of magnetism suction plate and electromagnetic plate.

The preferred technical scheme is seven: the connecting frame is of a telescopic structure, limiting holes are uniformly formed in the middle of the connecting frame, a plurality of arc-shaped grooves are formed in the upper end face and the lower end face of the connecting frame, the arc-shaped grooves in the upper side and the lower side are symmetrically arranged, and rubber plates are fixedly mounted on the inner end faces of the arc-shaped grooves; because the distance between backup pad one and the backup pad two changes, consequently the link is extending structure, fixes a position display screen rear end protrusion department through spacing pore pair to further fix a position the display screen, remove the messenger when needs to the display screen, at first with the attaching plug winding on the display screen on the arc recess, prevent through the rubber slab winding in-process, attaching plug receives the damage.

Compared with the prior art, the invention has the following beneficial effects: 1. according to the positioning movable support for the teaching display screen, the base is matched with the support frame, and the positioning movable support can be adjusted according to the size of the teaching display screen, so that the size range of the teaching display screen applicable to the positioning movable support is enlarged, and the positioning movable support is positioned through the base, so that the movement of the positioning movable support due to stress in the using process is prevented.

2. The base is arranged, the rightmost square barrel I is positioned through the fixed barrel, the square barrel I is matched with the square barrel II to prevent interference of movement of the platform-shaped block II, the platform-shaped block I is connected with the platform-shaped block II, the square barrel I is prevented from being separated from the square barrel II through the limiting frame plate, the square barrel I is connected through the cylindrical spring, movement of the square barrel I is buffered, and the leftmost square barrel I is positioned through the fixed barrel.

3. The base is matched with the first electromagnetic plate and the second electromagnetic plate through the magnetic suction plate, the orientation of the roller is controlled, and the roller is rotated to the direction vertical to each other, so that the base cannot move.

4. The support frame provided by the invention controls the inclination angle of the rectangular long plate through the bolt column so as to control the inclination angle of the display screen, the hooks on the display screen are matched through the right-angle hanging plate so as to position the display screen, and the hooks on the display screen are prevented from being scratched by the magnetic suction plate and the electromagnetic plate through the anti-skid rubber.

Drawings

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

Fig. 2 is a partial enlarged view of the present invention at N of fig. 1.

Fig. 3 is a partial enlarged view of the present invention at M of fig. 1.

Fig. 4 is a partial enlarged view at E of fig. 1 according to the present invention.

Fig. 5 is a schematic perspective view of the caster of the present invention.

FIG. 6 is a schematic plan view of the bearing and roller of the present invention.

In the figure: 1. a base; 11. a first table block; 111. a first rectangular frame plate; 112. a first electromagnetic plate; 12. a telescopic frame; 121. a first fixed cylinder; 122. a first square cylinder; 123. a second square cylinder; 124. a first limiting frame block; 125. a second limit frame block; 126. a cylindrical spring; 127. a second fixed cylinder; 13. an electric push rod; 14. a second platform block; 141. a second rectangular frame plate; 142. a second electromagnetic plate; 15. a universal wheel; 151. a bearing; 152. an arch plate; 153. a magnetic attraction plate; 154. a roller; 16. fixing the frame plate; 17. a sucker plate; 18. a threaded post; 19. a positioning column; 2. a support frame; 21. a first supporting column; 211. a first ceramic column; 22. a second supporting column; 221. a second ceramic column; 23. an angle plate; 231. c-shaped blocks; 232. an inclined plate; 233. a rotating shaft; 234. positioning blocks; 24. a first support plate; 241. an F-shaped plate; 242. a bolt column; 243. a rectangular long plate; 244. a right-angle hanging plate; 245. a support post; 246. a compression spring; 247. a pressing plate; 248. a magnetic attraction plate; 249. an electromagnetic plate; 250. anti-skid rubber; 25. a second support plate; 26. a connecting frame; 261. a limiting hole; 262. a rubber plate.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a positioning and moving support for a teaching display screen comprises a base 1 and a support frame 2, wherein the support frame 2 is fixedly installed on the upper end surface of the base 1; wherein.

Referring to fig. 1 and 5, the base 1 includes a first stage block 11, a telescopic frame 12, an electric push rod 13, a second stage block 14, a universal wheel 15, a fixed frame plate 16, a suction disc plate 17, a threaded post 18 and a positioning post 19, the left end face of the first stage block 11 is fixedly provided with the telescopic frame 12, the left end face of the telescopic frame 12 is fixedly provided with the second stage block 14, the left end of the first stage block 11 is positioned in the middle of the telescopic frame 12 and fixedly provided with the electric push rod 13, the left end of the electric push rod 13 is fixedly connected with the right end of the second stage block 14, the electric push rod 13 penetrates through the telescopic frame 12, the lower end faces of the first stage block 11 and the second stage block 14 are fixedly provided with the universal wheel 15, the lower side of the first stage block 11 is connected with the fixed frame plate 16 in a sliding fit manner, the lower end face of the fixed frame plate 16 is fixedly provided with the threaded post 17, the right side of the first stage block 11 is connected with the threaded post 18 in a rotating connection manner, the threaded post 18 is connected with the fixed frame plate 16 in a threaded connection manner, a positioning column 19 is fixedly arranged at the upper end of the left side of the fixed frame plate 16, and the positioning column 19 is connected with the first platform-shaped block 11 in a sliding fit manner; before the base is used, the base 1 is firstly pushed, the first table-shaped block 11 is moved to a proper position, at the moment, the second table-shaped block 14 is pushed to move leftwards through the electric push rod 13 according to the size of a display screen, after the second table-shaped block 14 moves to a required position, the threaded column 18 is rotated, so that the fixed frame plate 16 is controlled to move downwards until the sucker plate 17 is connected with a working plane, and finally the first table-shaped block 11 cannot move, so that the purpose of enabling the base 1 to be incapable of moving is achieved.

Referring to fig. 1, the support frame 2 includes a first support column 21, a second support column 22, an angular plate 23, a first support plate 24, a second support plate 25 and a connecting frame 26, the first support column 21 is fixedly installed on the upper end surface of the first table block 11, the second support column 22 is fixedly installed on the upper end surface of the second table block 14, the angular plate 23 is uniformly and fixedly installed between the first support column 21 and the second support column 22, the first support plate 24 is fixedly installed on the upper end surface of the first support column 21, the second support plate 25 is fixedly installed on the upper end surface of the second support column 22, and the connecting frame 26 is fixedly installed between the first support plate 24 and the second support plate 25; when the electric push rod 13 pushes the second table block 14 to move leftwards, the second support column 22 moves leftwards simultaneously, so that the angle of the angle plate 23 is changed, meanwhile, the connecting frame 26 is pulled, and after the base 1 is positioned, the first support plate 24, the second support plate 25 and the connecting frame 26 are matched to support and position the display screen.

Referring to fig. 5, a first rectangular frame plate 111 is fixedly mounted on the lower end surface of the first table-shaped block 11 and located on the outer side of the universal wheel 15, first electromagnetic plates 112 are symmetrically and fixedly mounted at the front end and the rear end of the inner side of the first rectangular frame plate 111, a second rectangular frame plate 141 is fixedly mounted on the lower end surface of the second table-shaped block 14 and located on the outer side of the universal wheel 15, second electromagnetic plates 142 are symmetrically and fixedly mounted at the left end and the right end of the inner side of the second rectangular frame plate 141, and the magnetism of the first electromagnetic plates 112 after being electrified is the same as that of the second electromagnetic plates 142 after being electrified; after the base 1 is positioned, the first electromagnetic plate 112 and the second electromagnetic plate 142 are energized, and because the first electromagnetic plate 112 and the second electromagnetic plate 142 are installed in different directions, the universal wheels 15 on the first table block 11 and the second table block 14 are turned to directions perpendicular to each other under the action of magnetic force, so that the base 1 cannot move.

Referring to fig. 1 and 4, the telescopic frame 12 includes a first fixed cylinder 121, a first square cylinder 122, a second square cylinder 123, a first limit frame 124, a second limit frame 125, a cylindrical spring 126 and a second fixed cylinder 127, the first fixed cylinder 121 is fixedly installed on the left end surface of the first table-shaped block 11, the first square cylinder 122 is connected to the middle of the first fixed cylinder 121 in a sliding fit manner, the second square cylinder 123 is connected to the outer side of the first square cylinder 122 in a sliding fit manner, the first square cylinder 122 and the second square cylinder 123 are connected end to end, the first square cylinder 122 and the second square cylinder 123 are connected in a sliding fit manner, the first limit frame 124 is fixedly installed on the outer end surface of the left side and the right side of the first square cylinder 122, the second limit frame 125 is fixedly installed on the inner end surface of the left side and the right side of the second square cylinder 123, the cylindrical spring 126 is fixedly connected between the first square cylinders 122, the outer side of the first square cylinder 122 on the leftmost side is connected with the second fixed cylinder 127 in a sliding fit manner, the left end of the second fixed cylinder 127 is fixedly connected with the second table-shaped block 14; the rightmost square barrel 122 is positioned through the first fixed barrel 121 and matched with the second square barrel 123 through the first square barrel 122, so that the second platform block 14 is prevented from interfering in movement, meanwhile, the first platform block 11 and the second platform block 14 are connected, the first square barrel 122 and the second square barrel 123 are prevented from being separated through the limiting frame plate, the first square barrel 122 is connected through the cylindrical spring 126, the movement of the first square barrel 122 is buffered, and the first square barrel 122 on the leftmost side is positioned through the second fixed barrel 127.

Referring to fig. 5 and 6, the universal wheel 15 includes a bearing 151, an arch-shaped plate 152, a magnetic attraction plate 153 and a roller 154, the bearing 151 is fixedly mounted on the lower end surfaces of the first stage-shaped block 11 and the second stage-shaped block 14, the arch-shaped plate 152 is fixedly mounted on the front and rear sides of the lower end surface of the bearing 151, the magnetic attraction plate 153 is fixedly mounted on the outer end surfaces of the arch-shaped plates 152 on the front and rear sides, the magnetism of the magnetic attraction plate 153 is opposite to the magnetism of the first electromagnetic plate 112 after being electrified, and the roller 154 is rotatably connected between the arch-shaped plates 152 on the front and rear sides through a pin; the orientation of the roller 154 is controlled by the magnetic attraction plate 153 cooperating with the first electromagnetic plate 112 and the second electromagnetic plate 142.

Referring to fig. 1 and fig. 2, the outer end surface of the first supporting column 21 is uniformly and fixedly provided with first ceramic columns 211 along the circumferential direction, and the outer end surface of the second supporting column 22 is uniformly and fixedly provided with second ceramic columns 221 along the circumferential direction; the hardness of the first support column 21 and the hardness of the first support column 21 are respectively improved through the first ceramic column 211 and the second ceramic column 221.

With continued reference to fig. 1 and 2, the angle plate 23 includes a C-shaped block 231, an inclined plate 232, a rotating shaft 233 and a positioning block 234, the C-shaped block 231 is uniformly and fixedly installed between the first supporting column 21 and the second supporting column 22, the inclined plate 232 is connected to the middle of the C-shaped block 231 in a rotating connection manner, the inclined plates 232 on the left and right sides are rotatably connected through the rotating shaft 233, and the positioning block 234 is fixedly installed at the lower side of the inclined plate 232 in the middle of the C-shaped block 231; the inclined plates 232 are positioned by the C-shaped blocks 231, the connection between the inclined plates 232 is made by the rotation shafts 233, and the inclined plates 232 are prevented from being inclined downward by gravity by the positioning blocks 234.

Referring to fig. 3, the first support plate 24 includes an F-shaped plate 241, a bolt column 242, a rectangular long plate 243, a right-angle hanging plate 244, a support column 245, an extrusion spring 246, an extrusion plate 247, a magnetic attraction plate 248, an electromagnetic plate 249 and an anti-slip rubber 250, the upper end surface of the first support column 21 is fixedly provided with the F-shaped plate 241, the middle part of the F-shaped plate 241 is connected with the bolt column 242 in a threaded connection manner, the front side of the bolt column 242 is connected with the rectangular long plate 243 in a rotatable connection manner, the upper side of the rectangular long plate 243 is connected with the upper side of the F-shaped plate 241 in a rotatable connection manner, the front end surface of the rectangular long plate 243 is fixedly provided with the right-angle hanging plate 244, the front end surface of the rectangular long plate 243 is uniformly and fixedly provided with the support column 245, the support column 245 is sleeved with the extrusion spring 246, one end of the extrusion spring 246 is fixedly connected to the support column 245, the other end of the extrusion spring 246 is fixedly provided with the extrusion plate 247, the rear side of the extrusion plate 247 is connected with the horizontal section of the right-angle hanging plate 244 in a sliding fit manner, the front end face of the extrusion plate 247 is fixedly provided with a magnetic attraction plate 248, the rear end face of the right-angle hanging plate 244 is fixedly provided with an electromagnetic plate 249, the magnetism of the energized electromagnetic plate 249 is opposite to that of the magnetic attraction plate 248, and the rear end face of the electromagnetic plate 249 and the front end face of the magnetic attraction plate 248 are both fixedly provided with anti-slip rubber 250; according to the demand, through the inclination of bolt post 242 control rectangle long plate 243, thereby control the inclination of display screen, cooperate through couple on right angle shape link plate 244 to the display screen, fix a position the display screen, this moment through circular telegram to electromagnetic plate 249, thereby make the magnetic attraction board 248 on the stripper plate 247 move forward under magnetic force, until the contact of couple on magnetic attraction board 248 and the display screen and to the couple forward extrusion on the display screen, thereby carry out further location to the display screen, prevent through non-slip rubber 250 that the couple on the display screen from receiving the scraping of magnetic attraction board 248 and electromagnetic plate 249.

Referring to fig. 1, the connecting frame 26 is of a telescopic structure, the middle of the connecting frame 26 is uniformly provided with a limiting hole 261, the upper and lower end faces of the connecting frame 26 are both provided with a plurality of arc-shaped grooves, the plurality of arc-shaped grooves on the upper and lower sides are symmetrically arranged, and the inner end faces of the arc-shaped grooves are fixedly provided with rubber plates 262; because the distance between the two 25 changes of backup pad 24 and backup pad, consequently link 26 is extending structure, fixes a position display screen rear end protrusion department through spacing hole 261 to further fix a position the display screen, remove the messenger when needs to the display screen, at first twine the power plug on the display screen on the arc recess, prevent the winding in-process through rubber slab 262, power plug receives the damage.

During specific work, firstly, the base 1 is pushed, the first table-shaped block 11 is moved to a proper position, at the moment, according to the size of the display screen, the second table-shaped block 14 is pushed to move leftwards through the electric push rod 13, after the second table-shaped block 14 moves to a required position, the threaded column 18 is rotated, the fixed frame plate 16 is controlled to move downwards until the sucker plate 17 is connected with the working plane, finally, the first table-shaped block 11 cannot move, the purpose that the base 1 cannot move is achieved, when the electric push rod 13 pushes the second table-shaped block 14 to move leftwards, the second support column 22 simultaneously moves leftwards, the angle of the angle-shaped plate 23 is changed, meanwhile, the connecting frame 26 is pulled, and after the base 1 is positioned, the display screen is supported and positioned through the first support plate 24, the second support plate 25 and the connecting frame 26 in a matching mode.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.