CN109380930B

CN109380930B - Folding screen

Info

Publication number: CN109380930B
Application number: CN201811178526.3A
Authority: CN
Inventors: 贾斯丽; 伍南辉; 笪献五
Original assignee: Hefei Spark Office Furniture Co Ltd
Current assignee: Hefei Spark Office Furniture Co Ltd
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2020-01-14
Anticipated expiration: 2038-10-10
Also published as: CN109380930A

Abstract

The invention belongs to the technical field of screens, in particular to a folding screen, which comprises an A column, a B column, a sector, a clamping seat, a spring plate and an extension unit, wherein the A column is fixed on a wall body or other objects through screws, and a sinking groove is arranged on the surface of the A column, which is opposite to the end surface fixed with the wall body, along the length direction of the A column; the clamping seat is fixed on the end face of the column A provided with the sinking groove, and the clamping seat is positioned at the upper end and the lower end of the column A; an elastic sheet is arranged on one end face of the B column, and the B column is inserted into the clamping seat through the elastic sheet to realize the connection with the A column; the fan surface is of a fan-shaped structure and is formed by folding laminating paper, the fan surface is positioned between the column A and the column B, two ends of the fan surface are respectively fixed on the column A and the column B, and the sink groove is used for providing a storage space for the fan surface; the extension unit is positioned at the bottom of the A column and is used for realizing the expansion and combination of the A column and the B column so as to realize the opening and closing of the screen. The invention can effectively protect privacy and release office space to the maximum extent.

Description

Folding screen

Technical Field

The invention belongs to the technical field of screens, and particularly relates to a folding screen.

Background

The screen has the functions of wind prevention, partition and hiding, and has the effects of decorating the environment and beautifying the space, so the screen is durable and can be used up to now, and various expression forms are derived. The screen mainly divides forms such as screen, seat screen, hanging screen, table screen into at present, and wherein large-scale screen can show that kind of noble vigor, is the first choice of sitting room, hall, meeting room, office, becomes the inseparable whole of house decoration, fuses practicality, appreciation nature in an organic whole.

When the office space layout is standardized, the problem that office privacy protection and space release are contradictory is often encountered. Because the door of office has the branch of controlling, will appear the privacy problem of partial office position when the desk is put unanimously (the door is just to the seat), should have at present this kind of customer appeal processing scheme: A. adding a group of file cabinets, B, a group of fixed screens, C and a group of movable screens. But these solutions all impose more or less restrictions on the activity space of the office staff.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides a folding screen. The invention is mainly used for providing a folding fan-shaped screen, which realizes the maximization of office space and fully protects the privacy of customers. According to the folding screen, the folding screen is designed into the A column, the B column and the sector, the combination and separation of the A column and the B column are realized by the extending unit in an automatic control mode, the A column and the B column can rotate to mutually vertical positions, so that the unfolding of the screen is realized, the privacy is effectively protected, the closing of the screen is realized when the A column and the B column are folded, the office space is released to the maximum extent, and the folding screen is flexible to use; and the A column can be fixed on the wall surface or other objects, and the application range is wide.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a folding screen, which comprises an A column, a B column, a sector, a clamping seat, an elastic sheet and an extension unit, wherein the A column is fixed on a wall body or other objects through screws, and a sinking groove is formed in the surface of the A column, which is opposite to the end surface fixed with the wall body, along the length direction of the A column; the clamping seat is fixed on the end face of the column A provided with the sinking groove, and the clamping seat is positioned at the upper end and the lower end of the column A; an elastic sheet is arranged on one end face of the B column, and the B column is inserted into the clamping seat through the elastic sheet to realize connection with the A column; the fan surface is of a fan-shaped structure and is formed by folding laminating paper, the fan surface is positioned between the column A and the column B, two ends of the fan surface are respectively fixed on the column A and the column B, and the sink groove is used for providing a storage space for the fan surface; the extension unit is positioned at the bottom of the A column and used for realizing the expansion and combination of the A column and the B column so as to realize the opening and closing of the screen, and the B column can rotate to a position which forms ninety degrees with the A column through the extension unit so as to realize the expansion of a sector; wherein the content of the first and second substances,

the extension unit comprises a spring, a double-end motor, a worm gear, a first connecting rod, a second gear, a connecting plate, a third gear, a second connecting rod, a fixed gear, a pull rope and a pulley, and the worm gear is rotatably arranged on the front wall and the rear wall of the A-column sinking groove; the spring is positioned in the sinking groove of the A column, the lower end of the spring is rotatably arranged at the bottom of the sinking groove, and the spring is meshed with the worm wheel; one end of the connecting rod is fixedly arranged on the circumferential surface of the worm wheel, and the other end of the connecting rod is fixedly connected with the first gear; the first gear and the worm wheel are positioned in the same vertical plane, and the first gear is rotatably arranged on the connecting plate; the second gear is rotatably arranged on the connecting plate and meshed with the first gear; the upper end of the second connecting rod is fixedly connected with the second gear, and the lower end of the second connecting rod is fixedly connected with the third gear; the gear III and the gear II are positioned in the same vertical plane, a groove is formed in the end face, in contact with the column A, of the column B, and the gear III is rotatably installed in the groove of the column B; the fixed gear is fixedly arranged in a groove of the B column and is meshed with the gear in three phases; the double-head motor is arranged in the sinking groove of the A column, and the lower end of the double-head motor is connected with the spring; the pulley is arranged at the top of the sinking groove of the A column; the stay cord is the rubber material, and the cotton thread is embedded along length direction inside the rubber, and stay cord one end is connected with the output shaft of double-end motor upper end, and the stay cord other end passes the pulley and is connected with the B post, and the stay cord sets up to intertwine's two strands. When the sector needs to be closed, the double-end motor works to drive the spring to rotate, the spring drives the worm wheel to rotate through spiral transmission, the worm drives the connecting rod I to rotate anticlockwise, the connecting rod I is fixedly connected with the gear I and drives the gear I to move, the gear I and the gear II are installed on the connecting plate to realize meshing transmission, the connecting rod II rotates clockwise, the connecting rod II drives the gear III to rotate clockwise, the fixed gear fixed on the B column rotates anticlockwise due to the meshing motion with the gear III, the B column and the A column are closed, in the process, the double-end motor drives the pull ropes to synchronously rotate, the two pull ropes are twisted together, one end close to the double-end motor is knotted due to torsion, the length of the pull rope is shortened, the pull rope pulls the B column to move towards the A column in a matching mode, when the B column is contacted with the A column, the elastic sheet is inserted into the clamping seat through extrusion of the B, the combination and sector closure of the column B and the column A are realized; when the sector needs to be opened, the double-end motor works to drive the spring to rotate reversely, the spring enables the worm wheel to rotate through spiral transmission, the worm drives the connecting rod to rotate clockwise, the connecting rod is fixedly connected with the gear I, the connecting rod drives the gear I to move, the gear I and the gear II are installed on the connecting plate to realize meshing transmission, the connecting rod II rotates anticlockwise, the connecting rod II drives the gear III to rotate anticlockwise, the fixed gear fixed on the B column rotates clockwise due to meshing movement with the gear III, the B column is far away from the A column to move, in the process, the double-end motor drives the stay cord to rotate reversely to loosen the knotted stay cord, the length of the stay cord is gradually increased, the B column is unfolded in a matching mode, and therefore the sector can be opened smoothly.

The stay cord is internally of a hollow structure, and the stay cord can be more easily knotted and wound due to deformation by the hollow structure of the stay cord, so that the length of the stay cord is shortened, and the combination of the B column and the A column is conveniently and smoothly realized.

The surface edge of the pull rope is provided with an air outlet which is communicated with a hollow structure inside the pull rope; a clapboard is also arranged in the sinking groove; the section of the partition plate is L-shaped, the partition plate is positioned at the top of the sinking groove, a first through hole for an output shaft at the upper end of the double-end motor to pass through is formed in the partition plate, the partition plate is fixed between the top of the sinking groove and the sinking groove to form a closed cavity, one end, connected with the double-end motor, of the pull rope is positioned in the closed cavity, and a second through hole for the pull rope to pass through is formed in the partition plate; the top of the column A is provided with a gas channel, the gas inlet end of the gas channel is communicated with the closed cavity, the gas outlet end of the gas channel is positioned on the outer side of the closed cavity, and the gas outlet end of the gas channel faces downwards vertically. When the pull rope is knotted due to the rotation of the double-end motor, the pull rope is extruded to discharge the air inside the pull rope from the air outlet, so that the air pressure in the closed cavity is increased, the air enters the air channel and is discharged from the air outlet end of the air channel, and the air discharged from the air outlet end is blown to the sector entering the sink groove, so that the sector is cleaned.

A sliding block is also arranged in the sinking groove; the sliding block is provided with a third through hole for the spring to pass through, the sliding block is installed on the spring through the third through hole, the left end face of the sliding block is in contact with the bottom of the sinking groove, and the end face of the sliding block, close to the B column, is provided with an inclined plane; a fixed block is arranged on the end face of the column B, which is in contact with the column A; the fixed block corresponds to the slide block in position. When the sector needs to be opened, the rotation of the spring enables the sliding block to move downwards along the sinking groove to extrude the fixed block to enable the elastic sheet on the B column to be separated from the clamping seat, the situation that the B column is difficult to separate from the A column at the initial position due to the fact that the friction force of the elastic sheet and the clamping seat is too large is avoided, and smooth opening of the sector is guaranteed.

The section of the pull rope is square; the pulley is provided with square groove in the slot bottom, and the width in square groove is the same with the cross-sectional width of stay cord. When the sector needs to be closed, the double-end motor drives the stay cord to rotate, the stay cord is knotted due to torsion, the design of the square groove in the pulley is matched with the square section of the stay cord, the torsion of the stay cord is reduced, the pulley is penetrated by the torsion to transmit the torsion to the B column, the stay cord is prevented from being knotted before entering the pulley, the stay cord is clamped and cannot move, and the smooth closing of the sector is guaranteed.

The end face of the fixed block, which is in contact with the sliding block, is arc-shaped, and the arc-shaped end face of the fixed block is made of rubber. The arc terminal surface design of fixed block makes the slider can move smoothly and promote fixed block horizontal migration, and the fixed block can not appear blockking of slider to make the shell fragment break away from the cassette, the rubber material makes the slider cushion the extrusion of fixed block, avoids causing to drag the sector to lead to the sector impaired.

The invention has the following beneficial effects:

1. according to the folding screen, the folding screen is designed into the A column, the B column and the sector, the combination and separation of the A column and the B column are realized by using the extension unit in an automatic control mode, and the A column and the B column can rotate to mutually vertical positions, so that the screen is unfolded, the privacy is effectively protected, and meanwhile, the interference of noise and light rays to the interior of an office is reduced; when the A column and the B column are folded, the screen is closed, the office space is released to the maximum extent, and the use is flexible; and the A column can be fixed on the wall surface or other objects, and the application range is wide.

2. According to the folding screen, the pull rope and the spring are respectively driven to rotate by the double-end motor, the B column and the A column are separated and combined by the rotation of the spring through the worm gear, the gear and the connecting rod, meanwhile, the pull rope synchronously realizes extension and shortening, so that two ends of the B column synchronously bear force to move, the safe opening and closing of the screen are ensured, and the folding screen is convenient to use.

3. According to the folding screen, the pull rope is of the hollow structure, when the double-head motor is used for driving the pull rope to rotate, the pull rope is twisted by torsion to be knotted and the air in the pull rope is discharged, the discharged air is blown to the fan surface, the automatic cleaning of the fan surface is realized, and the practicability is high.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the pull cord of the present invention;

FIG. 3 is a cross-sectional view of the sheave of the present invention;

FIG. 4 is a schematic view of the folding screen of the present invention in an open position when secured to a wall of an office;

FIG. 5 is a schematic view of the folding screen of the present invention in a closed position when secured to a wall of an office;

in the figure: the device comprises a column A1, a column B2, a sector 3, a clamping seat 4, an elastic sheet 5, an extension unit 6, a sinking groove 11, a spring 61, a double-end motor 62, a worm gear 63, a first gear 64, a first connecting rod 65, a second gear 66, a connecting plate 67, a third gear 68, a second connecting rod 69, a fixed gear 71, a pull rope 72, a pulley 73, cotton threads 721, a hollow structure 722, a partition plate 8, a closed cavity 81, an air channel 12, a sliding block 91, a fixing block 92 and a square groove 731.

Detailed Description

A folding screen according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1, 2, 4, and 5, the folding screen of the present invention includes an a-pillar 1, a B-pillar 2, a sector 3, a clamping seat 4, a spring 5, and an extension unit 6, wherein the a-pillar 1 is fixed on a wall or other objects by screws, and a sinking groove 11 is formed on a surface of the a-pillar 1 opposite to an end surface fixed to the wall along a length direction of the a-pillar 1; the clamping seat 4 is fixed on the end face of the A column 1 provided with the sinking groove 11, and the clamping seat 4 is positioned at the upper end and the lower end of the A column 1; an elastic sheet 5 is arranged on one end face of the B column 2, and the B column 2 is inserted into the clamping seat 4 through the elastic sheet 5 to realize connection with the A column 1; the fan face 3 is of a fan-shaped structure, the fan face 3 is formed by folding laminating paper, the fan face 3 is located between the column A1 and the column B2, two ends of the fan face 3 are respectively fixed on the column A1 and the column B2, and the sink 11 is used for providing a storage space for the fan face 3; the extension unit 6 is positioned at the bottom of the A column 1, the extension unit 6 is used for realizing the expansion and combination of the A column 1 and the B column 2, so that the opening and closing of the screen are realized, and the B column 2 can rotate to a position which forms ninety degrees with the A column 1 through the extension unit 6, so that the expansion of the sector 3 is realized; wherein the content of the first and second substances,

the stretching unit 6 comprises a spring 61, a double-head motor 62, a worm gear 63, a first gear 64, a first connecting rod 65, a second gear 66, a connecting plate 67, a third gear 68, a second connecting rod 69, a fixed gear 71, a pull rope 72 and a pulley 73, wherein the worm gear 63 is rotatably arranged on the front wall and the rear wall of the sinking groove 11 of the A-pillar 1; the spring 61 is positioned in the sinking groove 11 of the A column 1, the lower end of the spring 61 is rotatably arranged at the bottom of the sinking groove 11, and the spring 61 is meshed with the worm wheel 63; one end of the first connecting rod 65 is fixedly arranged on the circumferential surface of the worm gear 63, and the other end of the first connecting rod 65 is fixedly connected with the first gear 64; the first gear 64 and the worm wheel 63 are positioned in the same vertical plane, and the first gear 64 is rotatably arranged on the connecting plate 67; the second gear 66 is rotatably arranged on the connecting plate 67, and the second gear 66 is meshed with the first gear 64; the upper end of the second connecting rod 69 is fixedly connected with the second gear 66, and the lower end of the second connecting rod 69 is fixedly connected with the third gear 68; the third gear 68 and the second gear 66 are positioned in the same vertical plane, a groove is formed in the end face, in contact with the A column 1, of the B column 2, and the third gear 68 is rotatably installed in the groove of the B column 2; the fixed gear 71 is fixedly arranged in a groove of the B column 2, and the fixed gear 71 is meshed with the gear III 68; the double-head motor 62 is arranged in the sinking groove 11 of the A column 1, and the lower end of the double-head motor 62 is connected with the spring 61; the pulley 73 is arranged at the top of the sinking groove 11 of the A column 1; the pull rope 72 is made of rubber, cotton threads 721 are embedded in the rubber along the length direction, one end of the pull rope 72 is connected with an output shaft at the upper end of the double-end motor 62, the other end of the pull rope 72 penetrates through the pulley 73 to be connected with the B column 2, and the pull rope 72 is provided with two strands which are wound with each other. When the sector 3 needs to be closed, the double-end motor 62 works to drive the spring 61 to rotate, the worm wheel 63 is driven to rotate by the spring 61 through spiral transmission, the worm drives the first connecting rod 65 to rotate anticlockwise, the first connecting rod 65 is fixedly connected with the first gear 64, the first gear 65 drives the first gear 64 to move, the first gear 64 and the second gear 66 are installed on the connecting plate 67 to realize meshing transmission, the second connecting rod 69 rotates clockwise, the second connecting rod 69 drives the third gear 68 to rotate clockwise, the fixed gear 71 fixed on the B column 2 rotates anticlockwise due to the meshing motion with the third gear 68, so that the B column 2 is close to the A column 1, in the process, the double-end motor 62 drives the pull rope 72 to rotate synchronously, the two pull ropes 72 are twisted together, one end close to the double-end motor 62 is knotted due to torsion, the length of the pull rope 72 is shortened, and the pull rope 72 is matched to realize that the B column, when the B column 2 is contacted with the A column 1, the B column 2 is extruded to enable the elastic sheet 5 to be inserted into the clamping seat 4, so that the B column 2 is reliably connected with the A column 1, and the combination of the B column 2 and the A column 1 and the closure of the sector 3 are realized; when the sector 3 needs to be opened, the double-end motor 62 works to drive the spring 61 to rotate reversely, the worm wheel 63 rotates through spiral transmission of the spring 61, the worm drives the first connecting rod 65 to rotate clockwise, the first connecting rod 65 is fixedly connected with the first gear 64, the first gear 65 drives the first gear 64 to move, the first gear 64 and the second gear 66 are installed on the connecting plate 67 to achieve meshing transmission, the second connecting rod 69 is enabled to rotate anticlockwise, the second connecting rod 69 drives the third gear 68 to rotate anticlockwise, the fixed gear 71 fixed on the B column 2 rotates clockwise due to meshing movement with the third gear 68, the B column 2 is enabled to be far away from the A column 1 to move, in the process, the double-end motor 62 drives the pull rope 72 to rotate reversely, the knotted pull rope 72 is loosened, the length of the pull rope 72 is gradually increased, the unfolding of the B column 2 is achieved in a matching mode.

As shown in fig. 2, the pull rope 72 has a hollow structure 722 inside, and the hollow structure 722 of the pull rope 72 enables the pull rope 72 to be easily knotted and wound due to deformation, so that the length of the pull rope 72 is shortened, and the combination of the B-pillar 2 and the a-pillar 1 is conveniently and smoothly realized.

As shown in fig. 1, the surface of the pulling rope 72 is provided with an air outlet along the surface, and the air outlet is communicated with a hollow structure 722 inside the pulling rope 72; a partition plate 8 is also arranged in the sinking groove 11; the section of the partition plate 8 is L-shaped, the partition plate 8 is positioned at the top of the sinking groove 11, a first through hole for an output shaft at the upper end of the double-end motor 62 to pass through is formed in the partition plate 8, the partition plate 8 is fixed between the top of the sinking groove 11 and the sinking groove 11 to form a closed cavity 81, one end, connected with the double-end motor 62, of the pull rope 72 is positioned in the closed cavity 81, and a second through hole for the pull rope 72 to pass through is further formed in the partition plate 8; the column A1 is provided with a gas channel 12 at the top, the gas inlet end of the gas channel 12 is communicated with the closed cavity 81, the gas outlet end of the gas channel 12 is positioned at the outer side of the closed cavity 81, and the gas outlet end of the gas channel 12 faces downwards vertically. When the pulling rope 72 is knotted due to the rotation of the double-end motor 62, the pulling rope 72 is extruded to discharge the air inside from the air outlet, so that the air pressure in the closed cavity 81 is increased, the air enters the air channel 12 and is discharged from the air outlet end of the air channel 12, and the air discharged from the air outlet end is blown to the fan surface 3 entering the sink groove 11, so that the fan surface 3 is cleaned.

As shown in fig. 1, a slide block 91 is further disposed in the sinking groove 11; a third through hole for the spring 61 to pass through is formed in the sliding block 91, the sliding block 91 is installed on the spring 61 through the third through hole, the left end face of the sliding block 91 is in contact with the bottom of the sinking groove 11, and the end face of the sliding block 91 close to the B column 2 is provided with an inclined plane; a fixed block 92 is arranged on the end surface of the B column 2, which is in contact with the A column 1; the fixed block 92 corresponds to the position of the slider 91. When the sector 3 needs to be opened, the rotation of the spring 61 enables the sliding block 91 to move downwards along the sinking groove 11 to extrude the fixed block 92 so as to separate the elastic sheet 5 on the B column 2 from the clamping seat 4, thereby avoiding the situation that the B column 2 is difficult to separate from the A column 1 at the initial position due to the overlarge friction force of the elastic sheet 5 and the clamping seat 4, and ensuring the smooth opening of the sector 3.

As shown in fig. 3, the cross section of the pulling rope 72 is square; the pulley 73 is provided with a square groove 731 at the bottom of the groove, and the width of the square groove 731 is the same as the cross-sectional width of the rope 72. When the sector 3 needs to be closed, the double-end motor 62 drives the pull rope 72 to rotate, the pull rope 72 is knotted due to torsion, the design of the square groove 731 in the pulley 73 is matched with the square section of the pull rope 72, the torsion of the pull rope 72 is reduced and passes through the pulley 73 to be transmitted to the B column 2, the phenomenon that the pull rope 72 is knotted before entering the pulley 73, the pull rope 72 is clamped and cannot move is avoided, and smooth closing of the sector 3 is guaranteed.

As shown in fig. 1, the end surface of the fixed block 92 contacting the slider 91 is arc-shaped, and the arc-shaped end surface of the fixed block 92 is made of rubber. The arc-shaped end face design of the fixed block 92 enables the slider 91 to move smoothly and push the fixed block 92 to move horizontally, the fixed block 92 cannot block the slider 91, the elastic sheet 5 is separated from the clamping seat 4, the rubber material enables the slider 91 to buffer the extrusion of the fixed block 92, and the sector 3 is prevented from being damaged due to dragging.

The specific process is as follows:

when the sector 3 needs to be closed, the double-end motor 62 works to drive the spring 61 to rotate, the worm wheel 63 is driven to rotate by the spring 61 through spiral transmission, the worm drives the first connecting rod 65 to rotate anticlockwise, the first connecting rod 65 is fixedly connected with the first gear 64, the first gear 65 drives the first gear 64 to move, the first gear 64 and the second gear 66 are installed on the connecting plate 67 to realize meshing transmission, the second connecting rod 69 rotates clockwise, the second connecting rod 69 drives the third gear 68 to rotate clockwise, the fixed gear 71 fixed on the B column 2 rotates anticlockwise due to the meshing motion with the third gear 68, so that the B column 2 is close to the A column 1, in the process, the double-end motor 62 drives the pull rope 72 to rotate synchronously, the two pull ropes 72 are twisted together, one end close to the double-end motor 62 is knotted due to torsion, the length of the pull rope 72 is shortened, and the pull rope 72 is matched to realize that the B column, when the B column 2 is contacted with the A column 1, the B column 2 is extruded to enable the elastic sheet 5 to be inserted into the clamping seat 4, so that the B column 2 is reliably connected with the A column 1, and the combination of the B column 2 and the A column 1 and the closure of the sector 3 are realized; when the sector 3 needs to be opened, the double-end motor 62 works to drive the spring 61 to rotate reversely, the worm wheel 63 rotates through spiral transmission of the spring 61, the worm drives the first connecting rod 65 to rotate clockwise, the first connecting rod 65 is fixedly connected with the first gear 64, the first gear 65 drives the first gear 64 to move, the first gear 64 and the second gear 66 are installed on the connecting plate 67 to achieve meshing transmission, the second connecting rod 69 is enabled to rotate anticlockwise, the second connecting rod 69 drives the third gear 68 to rotate anticlockwise, the fixed gear 71 fixed on the B column 2 rotates clockwise due to meshing movement with the third gear 68, the B column 2 is enabled to be far away from the A column 1 to move, in the process, the double-end motor 62 drives the pull rope 72 to rotate reversely, the knotted pull rope 72 is loosened, the length of the pull rope 72 is gradually increased, the unfolding of the B column 2 is achieved in a matching mode.

When the pulling rope 72 is knotted due to the rotation of the double-end motor 62, the pulling rope 72 is extruded to discharge the air inside from the air outlet, so that the air pressure in the closed cavity 81 is increased, the air enters the air channel 12 and is discharged from the air outlet end of the air channel 12, and the air discharged from the air outlet end is blown to the fan surface 3 entering the sink groove 11, so that the fan surface 3 is cleaned.

When the sector 3 needs to be opened, the rotation of the spring 61 enables the sliding block 91 to move downwards along the sinking groove 11 to extrude the fixed block 92 so as to separate the elastic sheet 5 on the B column 2 from the clamping seat 4, thereby avoiding the situation that the B column 2 is difficult to separate from the A column 1 at the initial position due to the overlarge friction force of the elastic sheet 5 and the clamping seat 4, and ensuring the smooth opening of the sector 3. The arc-shaped end face design of the fixed block 92 enables the slider 91 to move smoothly and push the fixed block 92 to move horizontally, the fixed block 92 cannot block the slider 91, the elastic sheet 5 is separated from the clamping seat 4, the rubber material enables the slider 91 to buffer the extrusion of the fixed block 92, and the sector 3 is prevented from being damaged due to dragging.

When the sector 3 needs to be closed, the double-end motor 62 drives the pull rope 72 to rotate, the pull rope 72 is knotted due to torsion, the design of the square groove 731 in the pulley 73 is matched with the square section of the pull rope 72, the torsion of the pull rope 72 is reduced and passes through the pulley 73 to be transmitted to the B column 2, the phenomenon that the pull rope 72 is knotted before entering the pulley 73, the pull rope 72 is clamped and cannot move is avoided, and smooth closing of the sector 3 is guaranteed.

While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

Industrial applicability

According to the folding screen, the folding screen is designed into the A column, the B column and the sector, the combination and separation of the A column and the B column are realized by the extending unit in an automatic control mode, the A column and the B column can rotate to mutually vertical positions, so that the unfolding of the screen is realized, the privacy is effectively protected, the closing of the screen is realized when the A column and the B column are folded, the office space is released to the maximum extent, and the folding screen is flexible to use; and the A column can be fixed on the wall surface or other objects, and the application range is wide, so that the folding screen is useful in the field of screens.

Claims

1. A folding screen is characterized in that: the anti-theft door comprises an A column (1), a B column (2), a sector (3), a clamping seat (4), an elastic sheet (5) and an extension unit (6), wherein the A column (1) is fixed on a wall body or other objects through screws, and a sinking groove (11) is formed in the surface, opposite to the end face fixed to the wall body, of the A column (1) along the length direction of the A column (1); the clamping seat (4) is fixed on the end face of the A column (1) provided with the sinking groove (11), and the clamping seat (4) is positioned at the upper end and the lower end of the A column (1); an elastic sheet (5) is arranged on one end face of the B column (2), and the B column (2) is inserted into the clamping seat (4) through the elastic sheet (5) to be connected with the A column (1); the fan face (3) is of a fan-shaped structure, the fan face (3) is formed by folding laminating paper, the fan face (3) is located between the column A (1) and the column B (2), two ends of the fan face (3) are respectively fixed on the column A (1) and the column B (2), and the sink groove (11) is used for providing a storage space for the fan face (3); the extension unit (6) is positioned at the bottom of the A column (1), and the extension unit (6) is used for realizing the unfolding and the combination of the A column (1) and the B column (2) so as to realize the opening and the closing of the screen; wherein the content of the first and second substances,

the stretching unit (6) comprises a spring (61), a double-end motor (62), a worm gear (63), a first gear (64), a first connecting rod (65), a second gear (66), a connecting plate (67), a third gear (68), a second connecting rod (69), a fixed gear (71), a pull rope (72) and a pulley (73), wherein the worm gear (63) is rotatably arranged on the front wall and the rear wall of the sinking groove (11) of the A column (1); the spring (61) is positioned in the sinking groove (11) of the A column (1), the lower end of the spring (61) is rotatably arranged at the bottom of the sinking groove (11), and the spring (61) is meshed with the worm wheel (63); one end of the first connecting rod (65) is fixedly arranged on the circumferential surface of the worm wheel (63), and the other end of the first connecting rod (65) is fixedly connected with the first gear (64); the first gear (64) and the worm wheel (63) are positioned in the same vertical plane, and the first gear (64) is rotatably arranged on the connecting plate (67); the second gear (66) is rotatably arranged on the connecting plate (67), and the second gear (66) is meshed with the first gear (64); the upper end of the second connecting rod (69) is fixedly connected with the second gear (66), and the lower end of the second connecting rod (69) is fixedly connected with the third gear (68); the gear III (68) and the gear II (66) are positioned in the same vertical plane, a groove is formed in the end face, in contact with the column A (1), of the column B (2), and the gear III (68) is rotatably installed in the groove of the column B (2); the fixed gear (71) is fixedly arranged in a groove of the B column (2), and the fixed gear (71) is meshed with the gear III (68); the double-head motor (62) is arranged in the sinking groove (11) of the A column (1), and the lower end of the double-head motor (62) is connected with the spring (61); the pulley (73) is arranged at the top of the sinking groove (11) of the A column (1); stay cord (72) are the rubber material, and inside along length direction embedding cotton thread (721) of rubber, stay cord (72) one end is connected with the output shaft of double-end motor (62) upper end, and stay cord (72) other end passes pulley (73) and is connected with B post (2), and stay cord (72) set up to two strands of intertwine.

2. A folding screen according to claim 1, wherein: the pull rope (72) is internally provided with a hollow structure (722).

3. A folding screen according to claim 2, wherein: the surface of the pull rope (72) is provided with an air outlet which is communicated with a hollow structure (722) in the pull rope (72); a clapboard (8) is also arranged in the sinking groove (11); the section of the partition plate (8) is L-shaped, the partition plate (8) is located at the top of the sinking groove (11), a first through hole for an output shaft at the upper end of the double-end motor (62) to pass through is formed in the partition plate (8), the partition plate (8) is fixed between the top of the sinking groove (11) and the sinking groove (11) to form a closed cavity (81), one end, connected with the double-end motor (62), of the pull rope (72) is located in the closed cavity (81), and a second through hole for the pull rope (72) to penetrate out is formed in the partition plate (8); the column A (1) is provided with a gas channel (12) at the top, the gas inlet end of the gas channel (12) is communicated with the closed cavity (81), the gas outlet end of the gas channel (12) is positioned on the outer side of the closed cavity (81), and the gas outlet end of the gas channel (12) faces downwards vertically.

4. A folding screen according to claim 1, wherein: a sliding block (91) is also arranged in the sinking groove (11); a third through hole for the spring (61) to pass through is formed in the sliding block (91), the sliding block (91) is installed on the spring (61) through the third through hole, the left end face of the sliding block (91) is in contact with the bottom of the sinking groove (11), and the end face, close to the B column (2), of the sliding block (91) is provided with an inclined plane; a fixed block (92) is arranged on the end surface of the B column (2) which is in contact with the A column (1); the fixed block (92) corresponds to the slide block (91) in position.

5. A folding screen according to claim 1, wherein: the section of the pull rope (72) is square; the pulley (73) is provided with a square groove (731) at the bottom of the groove, and the width of the square groove (731) is the same as the width of the cross section of the pull rope (72).

6. A folding screen according to claim 4, wherein: the end face of the fixed block (92) contacting with the sliding block (91) is arc-shaped, and the arc-shaped end face of the fixed block (92) is made of rubber.