CN210372614U

CN210372614U - Screen fixing device

Info

Publication number: CN210372614U
Application number: CN201921114482.8U
Authority: CN
Inventors: 姜辉; 张剑
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-21
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a screen fixing device, which comprises a base, a circular plate and a fixed rod, wherein the circular hole is arranged on the upper surface of the base, the circular plate is rotationally connected in the circular hole, the upper surface of the circular plate is fixedly connected with the bottom surface of the fixed rod, the fixed rod is hollow and internally provided with a sliding rod, the side edge of the sliding rod is provided with a sliding chute, the inner wall of the fixed rod is fixed with a sliding block matched with the sliding chute, the sliding rod slides in the fixed rod, the upper part of the side surface of the sliding rod, which is not provided with the sliding chute, is provided with a second circular block, the middle position of the second circular block is provided with a through hole, the sliding rod is fixed with a rotating shaft corresponding to the position of the through hole, the rotating shaft passes through the through hole of the second circular block and is rotationally connected with the first circular block, the screen fixing device can adjust, the compatibility of the screen fixing device is improved.

Description

Screen fixing device

Technical Field

The utility model relates to a multimedia screen fixing device technical field specifically is a screen fixing device.

Background

The external screen uses the projection curtain more, at the in-process of installation projection curtain, because the size that current screen fixing device is suitable for is fixed, and because the product connected mode of different screen producer productions is different, even be the screen of same size, some screen fixing device also can't be fixed, current screen fixing device compatibility is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a screen fixing device, can carry out height, interval and inclination to connecting block position as required and adjust, can fix the screen of arbitrary specification, improve this screen fixing device's compatibility, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a screen fixing device comprises a base, a circular plate and a fixing rod, wherein the circular hole is formed in the upper surface of the base, the circular plate is connected in the circular hole in a rotating mode, the upper surface of the circular plate is fixedly connected with the bottom surface of the fixing rod, the fixing rod is hollow, a sliding rod is arranged in the fixing rod, a sliding groove is formed in the side edge of the sliding rod, a sliding block matched with the sliding groove is fixed on the inner wall of the fixing rod, the sliding rod slides in the fixing rod, a second round block is arranged on the upper portion, not provided with the side surface of the sliding groove, of the sliding rod, a through hole is formed in the middle of the second round block, a rotating shaft is fixed at the position, corresponding to the through hole, of the sliding rod, penetrates through the through hole of the second round block and is connected with the first round block in a rotating mode, two rectangular rings are symmetrically fixed on the, the outer outside of rectangular ring corresponds the position of first telescopic link and installs the bolt, the flexible end distal end of first telescopic link is fixed with the connecting block, a plurality of angle locating holes are evenly seted up to the impartial angle in side that the slide bar was kept away from to first circle piece and second circle piece, be provided with the polished rod bolt in the angle locating hole.

As a preferred technical scheme of the utility model, a plurality of square grooves have been seted up to the periphery side of base, and the one end joint of square groove and second telescopic link, the bottom side of the flexible end of second telescopic link is fixed with the sucking disc.

As a preferred technical scheme of the utility model, a plurality of direction locating holes have evenly been seted up to angles such as plectane upper surface, and the base upper surface is fixed with the hinge seat, and the hinge seat upper end articulates there is even board, and the one end that even board is close to the dead lever is fixed with the reference column, reference column and direction locating hole cooperation.

As an optimal technical scheme of the utility model, even the board is located the lower surface between hinge seat and the plectane and the one end fixed connection of first spring, the lower extreme and the base upper surface fixed connection of first spring.

As a preferred technical scheme of the utility model, the side that first circle piece was kept away from to the slide bar is fixed with vertical pinion rack, the round hole has been seted up to the dead lever side, be provided with the sleeve in the round hole, the sleeve rotates with the dead lever to be connected, the sleeve internal fixation has the bull stick, the one end that the rotary rod is located the dead lever is fixed with the gear, gear and pinion rack meshing, be fixed with the outer sleeve of cover in the sleeve outside on the dead lever outside, the sleeve outer lane is fixed with oblique ring gear, the outer sleeve outer lane is fixed with flat seat, the rectangular hole has been seted up on the flat seat, be provided with the cardboard in this rectangular hole, the lower extreme of cardboard and the laminating of.

As a preferred technical scheme of the utility model, flat seat upper surface fixed with the third telescopic link, the telescopic end of third telescopic link is fixed with the apron, the lower surface of apron and the upper end fixed connection of cardboard, the lower fixed surface of apron has the magnetite, and flat seat is iron plate.

As a preferred technical scheme of the utility model, a plurality of apertures have been seted up to the flexible end side equidistance of first telescopic link, and the pinhole has been seted up to the corresponding aperture position in first telescopic link stiff end side, is provided with the locating pin in the pinhole of first telescopic link, and the locating pin divide into round pin post and roof, is fixed with the second spring between roof and the first telescopic link side.

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

1. the utility model discloses the screen fixing device of example can carry out height, interval and inclination to connecting block place position as required and adjust, can fix the screen of arbitrary specification, improves this screen fixing device's compatibility.

2. The utility model discloses the screen fixing device of example can adjust the screen orientation under the condition of not taking off the screen, and it is more convenient to use, satisfies more scene demands.

3. The utility model discloses the screen fixing device of example can adjust the screen height at the condition of motionless screen, especially under the condition of having fixed large-scale screen for the screen goes up and down more laborsaving convenience.

4. The utility model discloses the screen fixing device of example for the device can also guarantee under the condition of fixed large-scale screen that the bottom plate is firm, very much when the device is placed on smooth subaerial, more can guarantee behind the sucking disc adsorbed ground that the bottom plate is firm motionless.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic structural view of the first round block and the second round block of the present invention;

FIG. 5 is a schematic view of the structure at A in FIG. 1;

FIG. 6 is a schematic view of the structure at B in FIG. 3;

in the figure: the automatic positioning device comprises a base 1, a circular plate 2, a positioning hole 3 in the direction, a fixing rod 4, a connecting block 5, a first telescopic rod 6, a positioning pin 7, a sliding rod 8, a toothed plate 9, a rotating rod 10, a positioning column 11, a first spring 12, a hinge seat 13, a connecting plate 14, a sucking disc 15, a second telescopic rod 16, an angle positioning hole 17, a first round block 18, a rectangular ring 19, a bolt 20, a second round block 21, a polished rod bolt 22, a second spring 23, a gear 24, a cover plate 25, a sleeve 26, a bevel gear ring 27, an outer sleeve 28, a flat seat 29, a magnet 30, a clamping plate 31 and a third telescopic rod 32.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-6, the present invention provides a technical solution: a screen fixing device comprises a base 1, a circular plate 2 and a fixing rod 4, wherein the circular hole is formed in the upper surface of the base 1, the circular plate 2 is rotationally connected in the circular hole, the upper surface of the circular plate 2 is fixedly connected with the bottom surface of the fixing rod 4, the fixing rod 4 is hollow and internally provided with a sliding rod 8, the side edge of the sliding rod 8 is provided with a sliding chute, the inner wall of the fixing rod 4 is fixedly provided with a sliding block matched with the sliding chute, the sliding rod 8 slides in the fixing rod 4, the upper part of the side surface of the sliding rod 8, which is not provided with the sliding chute, is provided with a second circular block 21, the middle position of the second circular block 21 is provided with a through hole, the position of the sliding rod 8, corresponding to the through hole, is fixedly provided with a rotating shaft, the rotating shaft penetrates through the through hole of the second circular block 21 and is rotationally connected with a first circular block 18, the first circular block 18 and the second circular block 21 rotate on the rotating shaft, the first circular block 18 and the second, the inner cavity of the rectangular ring 19 is clamped with the fixed end of the first telescopic rod 6, the rectangular ring 19 is used for fixing the first telescopic rod 6, a bolt 20 is arranged at the position, corresponding to the first telescopic rod 6, outside the rectangular ring 19, the far end of the telescopic end of the first telescopic rod 6 is fixed with a connecting block 5, a plurality of angle positioning holes 17 are uniformly formed in the side surfaces, away from the sliding rod 8, of the first round block 18 and the second round block 21 at equal angles, polished rod bolts 22 are arranged in the angle positioning holes 17, after first circle piece 18 and the rotatory adjustment of second circle piece 21 to suitable angle, thereby insert polished rod bolt 22 in angle positioning hole 17 with first circle piece 18 and second circle piece 21 fixed, this screen fixing device can carry out height, interval and inclination as required to connecting block 5 position and adjust, can fix the screen of arbitrary specification, improves this screen fixing device's compatibility.

A plurality of square grooves have been seted up to base 1's periphery side, and the one end joint of square groove and second telescopic link 16, the bottom side of the flexible end of second telescopic link 16 is fixed with sucking disc 15, take second telescopic link 16 out suitable position from base 1, later make sucking disc 15 adsorb ground and stabilize the device, this screen fixing device makes the device can also guarantee that the bottom plate is firm under the condition of fixed large-scale screen, when the device is placed on smooth subaerial very much, sucking disc 15 adsorbs behind the ground and more can guarantee that the bottom plate is firm motionless.

The upper surface of the circular plate 2 is uniformly provided with a plurality of direction positioning holes 3 with equal angles, the upper surface of the base 1 is fixed with a hinge base 13, the upper end of the hinge base 13 is hinged with a connecting plate 14, one end of the connecting plate 14 close to the fixed rod 4 is fixed with a positioning column 11, the positioning column 11 is matched with the direction positioning holes 3, the lower surface of the connecting plate 14 between the hinge base 13 and the circular plate 2 is fixedly connected with one end of a first spring 12, the lower end of the first spring 12 is fixedly connected with the upper surface of the base 1, when the direction of the screen needs to be adjusted in use, the connecting plate 14 is stepped by feet to enable the connecting plate 14 to rotate around the hinge base 13 so as to drive the positioning column 11 to be separated from the direction positioning holes 3, at the moment, after the fixed rod 4 is adjusted to a proper direction, the connecting plate 14 is loosened so that the positioning column 11 is inserted into the direction positioning holes 3 under the action of the first spring 12 so as to fix the fixed, the use is more convenient, and the requirements of more scenes are met.

A vertical toothed plate 9 is fixed on the side of the sliding rod 8 far away from the first round block 18, a round hole is formed in the side of the fixed rod 4, a sleeve 26 is arranged in the round hole, the sleeve 26 is rotatably connected with the fixed rod 4, a rotating rod 10 is rotated, the rotating rod 10 drives the sleeve 26 to relatively rotate on the fixed rod 4, a rotating rod 10 is fixed in the sleeve 26, a gear 24 is fixed at one end of the rotating rod 10, which is positioned in the fixed rod 4, the gear 24 is meshed with the toothed plate 9, the rotating rod 10 drives the gear 24 to rotate, then the gear 24 pushes the toothed plate 9 to move upwards, so that the device moves upwards, a helical tooth ring 27 is fixed on the outer side of the sleeve 26, a flat seat 29 is fixed on the outer ring of the sleeve 26, a rectangular hole is formed in the outer ring of the flat seat 29, a clamping plate 31 is arranged in the rectangular hole, the lower end of the clamping plate 31 is attached to the helical tooth vertical end of the, the telescopic end of the third telescopic rod 32 is fixed with a cover plate 25, the lower surface of the cover plate 25 is fixedly connected with the upper end of a clamping plate 31, the lower surface of the cover plate 25 is fixed with a magnet 30, a flat seat 29 is an iron plate, when the sleeve 26 drives the bevel gear ring 27 to rotate, because the chucking plate 31 is always in contact with the helical gear 27 by the magnetic force of the magnet 30 under the cover plate 25, when the helical gear 27 rotates counterclockwise, the chucking plate 31 does not obstruct the movement thereof, when the gear 24 is rotated clockwise by the weight of the toothed plate 9, the catch plate 31 blocks the bevel gear ring 27 from rotating, thereby with the fixed position of slide bar 8, when the height of slide bar 8 needs to be reduced, only need the right hand lift apron 25 make cardboard 31 break away from bevel gear 27 can, this screen fixing device can adjust the screen height under the condition of motionless screen, especially under the condition of having fixed large-scale screen for the screen goes up and down laborsaving convenience more.

A plurality of apertures have been seted up to the flexible end side equidistance of first telescopic link 6, and the pinhole has been seted up to the position that the 6 stiff end side of first telescopic link corresponds the aperture, is provided with locating pin 7 in the pinhole of first telescopic link 6, and locating pin 7 divide into round pin post and roof, is fixed with second spring 23 between roof and the 6 sides of first telescopic link, can prevent that the 6 flexible ends of first telescopic link from receiving gravity to contract back, and it is easier to adjust 6 length of first telescopic link simultaneously.

When in use: firstly, the second telescopic rod 16 is pulled out to a proper position from the base 1, then the sucking disc 15 is enabled to adsorb the ground to stabilize the device, then the first round block 18 and the second round block 21 are enabled to rotate on the rotating shaft according to the specification of a screen, the rotation of the first round block 18 and the rotation of the second round block 21 cannot influence each other, and after the rotation is adjusted to a proper angle, the polished rod bolt 22 is inserted into the angle positioning hole 17 to fix the first round block 18 and the second round block 21;

as shown in fig. 6, the positioning pin 7 is pulled up to make the pin of the positioning pin 7 separate from the pin hole on the telescopic end of the first telescopic rod 6, then the telescopic rod of the first telescopic rod 6 is pulled down to a proper position, after the positioning pin 7 is released, the positioning pin 7 is reset under the action of the spring force of the second spring 23, so that the telescopic end of the first telescopic rod 6 is fixed, then the same operation is carried out on other first telescopic rods 6, and then the screen is fixed on the connecting block 5;

when the direction of the screen needs to be adjusted during use, the connecting plate 14 is stepped by feet to enable the connecting plate 14 to rotate around the hinge base 13, so that the positioning column 11 is driven to be separated from the direction positioning hole 3, after the fixing rod 4 is rotated to be adjusted to a proper position, the connecting plate 14 is loosened, and the positioning column 11 is inserted into the direction positioning hole 3 through the connecting plate 14 under the action of the first spring 12, so that the fixing rod 4 is fixed.

When the screen height needs to be adjusted, the rotating rod 10 is rotated, the rotating rod 10 drives the sleeve 26 to relatively rotate on the fixing rod 4, the rotating rod 10 drives the gear 24 to rotate, then the gear 24 pushes the toothed plate 9 to move upwards, thereby enabling the device to move upwards, when the sleeve 26 drives the bevel gear ring 27 to rotate, due to the magnetic action of the magnet 30 below the cover plate 25, the clamping plate 31 is always in contact with the bevel gear ring 27, therefore, when the bevel gear ring 27 rotates anticlockwise, the clamping plate 31 cannot obstruct the movement of the device, when the gear 24 is clockwise rotated under the action of gravity of the toothed plate 9, the clamping plate 31 can obstruct the bevel gear ring 27 to rotate, thereby fixing the position of the sliding rod 8, when the height of the sliding rod 8 needs to be reduced, only the right hand is needed to lift the cover plate 25 to enable the clamping.

The utility model discloses can carry out height, interval and inclination to connecting block 5 place as required and adjust, can fix the screen of arbitrary specification, improve this screen fixing device's compatibility.

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.

Claims

1. The utility model provides a screen fixing device, includes base (1), plectane (2) and dead lever (4), its characterized in that: the upper surface of the base (1) is provided with a round hole, the round hole is rotationally connected with a round plate (2), the upper surface of the round plate (2) is fixedly connected with the bottom surface of a fixed rod (4), the fixed rod (4) is hollow and internally provided with a sliding rod (8), the side edge of the sliding rod (8) is provided with a sliding groove, the inner wall of the fixed rod (4) is fixed with a sliding block matched with the sliding groove, the sliding rod (8) slides in the fixed rod (4), the upper part of the side surface of the sliding rod (8) which is not provided with the sliding groove is provided with a second round block (21), the middle position of the second round block (21) is provided with a through hole, the sliding rod (8) is fixed with a rotating shaft corresponding to the through hole, the rotating shaft penetrates through holes of the second round block (21) and is rotationally connected with the first round block (18), and the circumferential side surfaces of the first round block (18) and the second round block (21) are symmetrically fixed, and the stiff end joint of rectangle ring (19) inner chamber and first telescopic link (6), bolt (20) are installed to the position that rectangle ring (19) outer outside corresponds first telescopic link (6), the flexible end distal end of first telescopic link (6) is fixed with connecting block (5), a plurality of angle locating holes (17) are evenly seted up to the impartial angle in side that slide bar (8) were kept away from in first disk (18) and second disk (21), be provided with polished rod bolt (22) in angle locating hole (17).

2. The screen holding apparatus of claim 1, wherein: a plurality of square grooves are formed in the outer peripheral side of the base (1), the square grooves are connected with one end of a second telescopic rod (16) in a clamped mode, and a sucker (15) is fixed to the bottom side of the telescopic end of the second telescopic rod (16).

3. The screen holding apparatus of claim 1, wherein: a plurality of direction positioning holes (3) are uniformly formed in the upper surface of the circular plate (2) at equal angles, a hinge seat (13) is fixed on the upper surface of the base (1), a connecting plate (14) is hinged to the upper end of the hinge seat (13), a positioning column (11) is fixed at one end, close to the fixing rod (4), of the connecting plate (14), and the positioning column (11) is matched with the direction positioning holes (3).

4. The screen holding apparatus of claim 3, wherein: the lower surface of the connecting plate (14) between the hinge seat (13) and the circular plate (2) is fixedly connected with one end of the first spring (12), and the lower end of the first spring (12) is fixedly connected with the upper surface of the base (1).

5. The screen holding apparatus of claim 1, wherein: the side that first circle piece (18) was kept away from in slide bar (8) is fixed with vertical pinion rack (9), the round hole has been seted up to dead lever (4) side, be provided with sleeve (26) in the round hole, sleeve (26) are rotated with dead lever (4) and are connected, sleeve (26) internal fixation has rotating rod (10), the one end that rotating rod (10) are located dead lever (4) is fixed with gear (24), gear (24) and pinion rack (9) meshing, be fixed with outer sleeve (28) of cover in the sleeve (26) outside on dead lever (4) the outside, sleeve (26) outer lane is fixed with skewed tooth ring (27), outer sleeve (28) outer lane is fixed with flat seat (29), the rectangular hole has been seted up on flat seat (29), be provided with cardboard (31) in this rectangular hole, the lower extreme of cardboard (31) is laminated with the perpendicular end of skewed tooth ring (27).

6. The screen holding apparatus of claim 5, wherein: the upper surface of the flat seat (29) is fixedly provided with a third telescopic rod (32), the telescopic end of the third telescopic rod (32) is fixedly provided with a cover plate (25), the lower surface of the cover plate (25) is fixedly connected with the upper end of a clamping plate (31), the lower surface of the cover plate (25) is fixedly provided with a magnet (30), and the flat seat (29) is an iron plate.

7. The screen holding apparatus of claim 1, wherein: a plurality of small holes are formed in the side face of the telescopic end of the first telescopic rod (6) at equal intervals, pin holes are formed in the side face of the fixed end of the first telescopic rod (6) corresponding to the small holes, positioning pins (7) are arranged in the pin holes of the first telescopic rod (6), the positioning pins (7) are divided into pin columns and a top plate, and a second spring (23) is fixed between the top plate and the side face of the first telescopic rod (6).