CN113671784B

CN113671784B - Foldable light-resistant screen

Info

Publication number: CN113671784B
Application number: CN202110937333.7A
Authority: CN
Inventors: 张利; 牟海燕
Original assignee: Shenzhen Meisaiwen Technology Co ltd
Current assignee: Shenzhen Meisaiwen Technology Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-07-19
Anticipated expiration: 2041-08-16
Also published as: CN113671784A

Abstract

The invention relates to the technical field of screen equipment, in particular to a foldable light-resistant screen, which comprises a mounting seat and a screen main body arranged on the mounting seat, wherein a left support rod and a right support rod are arranged at the lower end of the mounting seat, a driving device and a linkage assembly are arranged in the mounting seat, the left support rod and the right support rod are driven by the driving device and perform linear opposite movement on the mounting seat, the left support rod and the right support rod are driven by the linkage assembly to perform linear movement and simultaneously perform autorotation, the left support rod and the right support rod are in mirror symmetry relative to the screen main body, a plurality of clamping holes are arranged at two ends of the screen main body, a containing cavity matched with the screen main body is arranged at one side, close to each other, of the left support rod and the right support rod, and a positioning assembly for quickly fixing the screen main body is arranged in the containing cavity. The screen main body is convenient to roll or unfold, simple to operate, foldable and light-resistant, can improve the gain effect of the screen, and is worthy of popularization.

Description

Foldable light-resistant screen

Technical Field

The invention relates to the technical field of screen equipment, in particular to a foldable light-resistant screen.

Background

The projector screen in the current market is inconvenient to fold, high in cost, complex in production process and not high enough in screen gain; and when rolling up and putting down to the screen, can only roll up and put down through a direction usually, the screen volume that the projecting apparatus was used is great, this just makes complex operation, and the rolling time is long moreover, is unfavorable for the use.

In view of this, we propose a foldable screen that is resistant to light.

Disclosure of Invention

The present invention is directed to a foldable screen that is resistant to light and solves the above-mentioned problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a screen of collapsible light resistance, includes mount pad and the screen main part of setting on the mount pad, left vaulting pole and right vaulting pole are installed to the lower extreme of mount pad, and the inside of mount pad is equipped with drive arrangement and linkage subassembly, left side vaulting pole and right vaulting pole are driven by drive arrangement and are carried out sharp motion in opposite directions on the mount pad to left side vaulting pole and right vaulting pole carry out the rotation in linear motion under the drive of linkage subassembly, and left side vaulting pole and right vaulting pole are mirror symmetry about the screen main part, the both ends of screen main part all are provided with a plurality of card holes, and left side vaulting pole and right vaulting pole are close to each other one side all seted up with the screen main part complex hold the chamber, hold the intracavity and install the locating component that carries out quick fixed to the screen main part.

Preferably, a cavity is formed in the mounting base, a driving device is arranged in the cavity, the driving device comprises a first ball screw pair, a second ball screw pair and a stepping motor, an output shaft of the stepping motor is fixedly connected with a lead screw of the second ball screw pair, a lead screw of the first ball screw pair is coaxially welded with a lead screw of the second ball screw pair, and the thread directions of the lead screws of the first ball screw pair and the second ball screw pair are opposite.

Preferably, the front end that the mount pad is located the cavity has seted up the activity groove, and the activity inslot is equipped with the linkage subassembly, the linkage subassembly includes first straight-tooth gear, second straight-tooth gear and rack, the rack meshes respectively and connects first straight-tooth gear and second straight-tooth gear, and the upper end of first straight-tooth gear is passed through the connecting rod and is connected with the screw nut of first ball screw pair, and the upper end of second straight-tooth gear is passed through the connecting rod and is connected with the screw nut of second ball screw pair.

Preferably, the upper end of the left support rod stretches into the movable groove and is fixedly connected with a first straight gear, the upper end of the right support rod stretches into the movable groove and is fixedly connected with a second straight gear, the first straight gear and the second straight gear are respectively rotatably connected with a group of connecting rods, and a screw nut of the first ball screw pair and a screw nut of the second ball screw pair are both fixedly connected with a group of connecting rods.

Preferably, left side vaulting pole and right vaulting pole are formed by installation shell and set casing concatenation, and the standing groove has been seted up to the bottom of installation shell, are equipped with locating component in the standing groove, and locating component includes locating piece, second spring and pull rod, pull rod one end fixed connection link, and the pull rod other end stretches into the standing groove and runs through second spring and locating piece fixed connection, and the constant head tank has been seted up to the lower terminal surface of set casing, and the one end setting that the pull rod was kept away from to the locating piece is circular-arc and inserts and establish in the constant head tank.

Preferably, the inside of set casing runs through and has seted up the perforation, and slidable mounting has the inserted bar in the perforation, and in the lower extreme of inserted bar stretched into the constant head tank, the slot that holds the inserted bar was seted up to the top lower extreme of installation shell.

Preferably, the first movable groove of the same quantity with the card hole is seted up to the one end that the installation shell is close to the screen main part, and slidable mounting has the stand in the first movable groove, and stand one end is run through and is inserted and establish in the card hole, and the stand other end stretches into first movable groove and fixedly connected with stopper, the first spring of one side fixed connection of stopper, four groups are no less than to the number in card hole, and the fixed casing is close to one side of installation shell and is fixed to be provided with a plurality of vertical inserted bars that are the linear distribution, set up the vertical jack that holds vertical inserted bar on the lateral wall of installation shell.

Preferably, the second movable groove that has the same quantity with the card hole is seted up to the one end that the set casing is close to the screen main part, and slidable mounting has the promotion box in the second movable groove, promotes the box cover and establishes on the stopper, and one side fixedly connected with door shape screw thread seat that promotes the box, door shape screw thread seat interpolation are equipped with adjusting screw, and adjusting screw keeps away from the one end that promotes the box and stretches out set casing and fixed connection knob, promotes the box and all runs through with the stopper is inside and has seted up the through-hole, and the through-hole cooperatees with adjusting screw.

Preferably, the screen main body sequentially comprises a metal coating, an adhesive layer and a polyester ammonia layer from top to bottom, an elastic fiber rib is connected between the metal coating and the adhesive layer, and a carbon black layer is connected between the adhesive layer and the polyester ammonia layer.

Preferably, spandex is arranged in the polyester-polyurethane layer, metal silver powder is arranged in the metal coating layer, the bonding layer is made of a polyacrylate adhesive material, and the thickness of the bonding layer is smaller than that of the carbon black layer.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the lead screw nuts of the first ball screw pair and the second ball screw pair move horizontally in opposite directions, so that two groups of connecting rods are driven to mutually approach or separate; under the action of the rack, the first straight gear and the second straight gear rotate while moving linearly, so that the left support rod and the right support rod sequentially drive one end of the screen main body to be rolled inwards, and compared with the existing one-way rolling mode, the operation is simpler and faster, and time and labor are saved;

2. the screen main body comprises the metal coating, the elastic fiber ribs, the adhesive layer carbon black layer and the polyester ammonia layer, the elastic fiber ribs are arranged to increase the elasticity of the screen, wrinkle deformation caused by long-time bending is avoided, and the back of the screen is shielded by the carbon black layer, so that light reflection imaging is facilitated. The polyurethane layer is internally provided with spandex, so that the polyurethane layer has stronger elasticity and can be naturally recovered after being folded; the metal silver powder is arranged in the metal coating, so that the curtain gain effect can be improved, and the curtain is worthy of popularization;

3. according to the invention, the position of the pushing box can be adjusted by shifting the adjusting nut, so that the pushing box can drive the stand column to move together, the tension degree of the screen main body can be finely adjusted, and the screen main body can show the best viewing effect.

Drawings

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

FIG. 2 is an exploded view of the structure of the present invention;

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

FIG. 4 is an exploded view of the left and right struts of the present invention construction;

FIG. 5 is a schematic view of the connection between the main screen body and the left stay bar of the present invention;

FIG. 6 is a schematic view of the connection between the main body of the screen and the left stay bar in the structure of the present invention 2;

fig. 7 is a cross-sectional view of a screen body in the construction of the present invention.

In the figure: the screen comprises a mounting seat 1, a screen main body 2, a metal coating 201, an elastic fiber rib 202, an adhesive layer 203, a carbon black layer 204, a polyurethane layer 205, a left support rod 3, a right support rod 4, a first straight gear 5, a second straight gear 6, a rack 7, a connecting rod 8, a first ball screw pair 9, a second ball screw pair 10, a stepping motor 11, a clamping hole 12, a mounting shell 13, a fixing shell 14, a stand column 15, a limiting block 16, a first spring 17, a pushing box 18, an adjusting screw 19, an inserted link 20, a positioning block 21, a second spring 22, a pull rod 23, a longitudinal inserted link 24 and a longitudinal insertion hole 25.

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 to 7, the present invention provides a technical solution: the utility model provides a collapsible anti-light's screen, including mount pad 1 and the screen main part 2 of setting on mount pad 1, left vaulting pole 3 and right vaulting pole 4 are installed to the lower extreme of mount pad, the inside of mount pad is equipped with drive arrangement and linkage assembly, left vaulting pole 3 and right vaulting pole 4 are driven by drive arrangement and are gone on sharp phase to phase motion on mount pad 1, and left vaulting pole 3 and right vaulting pole 4 carry out the rotation in linear motion under linkage assembly's drive, left vaulting pole 3 and right vaulting pole 4 are mirror symmetry about screen main part 1, the both ends of screen main part all are provided with a plurality of card holes 12, the number of card hole 12 is no less than five, left vaulting pole 3 and right vaulting pole 4 one side that is close to each other all seted up and hold the chamber with screen main part 2 matched with, it installs the locating component who carries out quick fixed to screen main part 2 to hold the intracavity. As shown in fig. 2 and fig. 3, a cavity is formed in the mounting base 1, a driving device is arranged in the cavity, the driving device includes a first ball screw pair 9, a second ball screw pair 10 and a stepping motor 11, an output shaft of the stepping motor 11 is fixedly connected to a lead screw of the second ball screw pair 10, the lead screw of the first ball screw pair 9 is coaxially welded to the lead screw of the second ball screw pair 10, and the screw thread directions of the lead screw of the first ball screw pair 9 and the lead screw of the second ball screw pair 10 are opposite. By opening the stepping motor 11, the stepping motor 11 drives the first ball screw pair 9 and the second ball screw pair 10 to move, and because the screw thread directions of the screw of the first ball screw pair 9 and the screw thread of the second ball screw pair 10 are opposite, the screw nut of the first ball screw pair 9 and the screw nut of the second ball screw pair 10 move horizontally in opposite directions, so that the two groups of connecting rods 8 are driven to be close to or far away from each other.

As shown in fig. 2 and 3, the mounting base 1 is located at the front end of the cavity and has been provided with a movable groove, a linkage assembly is arranged in the movable groove, the linkage assembly comprises a first straight gear 5, a second straight gear 6 and a rack 7, the rack 7 is respectively engaged with and connected with the first straight gear 5 and the second straight gear 6, the upper end of the first straight gear 5 is connected with a screw nut of a first ball screw pair 9 through a connecting rod 8, and the upper end of the second straight gear 6 is connected with a screw nut of a second ball screw pair 10 through the connecting rod 8. The upper end of the left support rod 3 stretches into the movable groove and is fixedly connected with the first straight gear 5, the upper end of the right support rod 4 stretches into the movable groove and is fixedly connected with the second straight gear 6, the first straight gear 5 and the second straight gear 6 are respectively rotatably connected with a group of connecting rods 8, and a screw nut of the first ball screw pair 9 and a screw nut of the second ball screw pair 10 are fixedly connected with a group of connecting rods 8.

When the two groups of connecting rods 8 move linearly and oppositely, the first straight gear 5 and the second straight gear 6 connected with the connecting rods move horizontally along with the connecting rods, and under the action of the rack 7, the first straight gear 5 rotates anticlockwise, and the second straight gear 6 rotates clockwise, so that the left support rod 3 and the right support rod 4 respectively drive one end of the screen main body 2 to roll inwards, and compared with the existing one-way rolling mode, the operation is simpler and quicker, and time and labor are saved;

when two sets of connecting rods 8 carried out sharp back of the body motion, first spur gear 5 and second spur gear 6 rather than being connected also carried out horizontal migration thereupon to under the effect of rack 7, first spur gear 5 carries out clockwise rotation, and second spur gear 6 carries out anticlockwise rotation, thereby makes left vaulting pole 3 and right vaulting pole 4 drive the one end of screen main part 2 respectively and expandes to both ends, comes into operation.

As shown in fig. 5 and 6, the left stay bar 3 and the right stay bar 4 are formed by splicing an installation shell 13 and a fixed shell 14, a placing groove is formed in the bottom of the installation shell 13, a positioning assembly is arranged in the placing groove, the positioning assembly comprises a positioning block 21, a second spring 22 and a pull rod 23, a hanging ring is fixedly connected to one end of the pull rod 23, the other end of the pull rod 23 extends into the placing groove and penetrates through the second spring 22 and the positioning block 21, a positioning groove is formed in the lower end face of the fixed shell 14, and one end, far away from the pull rod 23, of the positioning block 21 is arc-shaped and inserted in the positioning groove. Through setting up locating piece 21, second spring 22 and the cooperation of pull rod 23 and using, can splice fast fixedly installation shell 13 and set casing 14 to with the both ends of screen main part 2 rapid Assembly in proper order on left vaulting pole 3 and right vaulting pole 4, the later stage of being convenient for is rolled up or is expanded screen main part 2. As shown in fig. 3 and 4, a through hole is formed through the inside of the fixing shell 14, an insertion rod 20 is slidably mounted in the through hole, a lower end of the insertion rod 20 extends into the positioning groove, and a slot for accommodating the insertion rod 20 is formed at a lower end of the top of the mounting shell 13. When the positioning block 21 extends into the positioning groove, the insertion rod 20 is pushed upwards, so that the insertion rod 20 is inserted into the slot, and the upper end of the fixed shell 14 is limited. The one end that the installation shell 13 is close to the screen main part 2 offers the first movable groove with the same quantity of card hole 12, slidable mounting has stand 15 in the first movable groove, stand 15 one end is run through and is inserted and establish in card hole 12, the stand 15 other end stretches into first movable groove and fixedly connected with stopper 16, the first spring 17 of one side fixed connection of stopper 16, four groups are no less than to the number of card hole 12, and one side that the set casing 14 is close to the installation shell 13 is fixed to be provided with a plurality of vertical inserted bars 24 that are the linear distribution, set up the vertical jack 25 that holds vertical inserted bar 24 on the lateral wall of installation shell 13. Through setting up a plurality of stands 15 and the cooperation of card hole 12 and using, can carry out spacing fixed to screen main part 2.

The second movable groove that has the same quantity with card hole 12 is seted up to the one end that set casing 14 is close to screen main part 2, slidable mounting has promotion box 18 in the second movable groove, it establishes on stand 15 to promote the box 18 cover, one side fixedly connected with door shape screw thread seat that promotes box 18, door shape screw thread seat interpolation is equipped with adjusting screw 19, adjusting screw 19 is kept away from the one end that promotes box 18 and is stretched out set casing 14 and fixed connection knob, promote box 18 and stopper 16 inside all to run through and seted up the through-hole, the through-hole cooperatees with adjusting screw 19. Through stirring adjusting nut 19, can realize the regulation to promoting box 18 position for it can drive stand 15 together to promote box 18 and remove, thereby can finely tune the rate of tension of screen main part 2, makes screen main part 2 show best viewing effect. As shown in fig. 7, the screen main body 2 sequentially includes a metal coating 201, an adhesive layer 203 and a polyurethane layer 205 from top to bottom, an elastic fiber rib 202 is connected between the metal coating 201 and the adhesive layer 203, and the elastic fiber rib 202 is arranged to increase the elasticity of the screen and avoid the wrinkle deformation caused by long-time bending. The carbon black layer 204 is connected between the adhesive layer 203 and the polyester-polyurethane layer 205, and the back of the screen is shielded from light through the carbon black layer 10, so that light reflection imaging is facilitated.

The polyurethane layer 205 is provided with polyurethane, so that the polyurethane layer has strong elasticity and can be naturally recovered after being folded; the metal silver powder is arranged in the metal coating 201, so that the curtain gain effect can be improved. The adhesive layer 203 is made of a polyacrylate adhesive material, and the thickness of the adhesive layer 203 is smaller than that of the carbon black layer 204.

The working principle is as follows: in actual use, the clamping holes 12 at the two ends of the screen main body 2 are sequentially sleeved on the corresponding upright posts 15, then the pushing box 18 on the fixed shell 14 is aligned to the upright posts 15 and assembled on the installation shell 13, the left support rod 3 and the right support rod 4 are arranged in the left support rod 3 and the right support rod 4, at the moment, the positioning block 21, the second spring 22 and the pull rod 23 are used in a matched mode, the installation shell 13 and the fixed shell 14 can be quickly spliced and fixed, so that the two ends of the screen main body 2 are sequentially and quickly assembled on the left support rod 3 and the right support rod 4, the position of the pushing box 18 can be adjusted by shifting the adjusting nut 19, the pushing box 18 can drive the upright posts 15 to move together, the tension degree of the screen main body 2 can be finely adjusted, and the screen main body 2 can show the best viewing effect; then, by turning on the stepping motor 11, the stepping motor 11 drives the first ball screw pair 9 and the second ball screw pair 10 to move, and because the screw threads of the screw of the first ball screw pair 9 and the screw threads of the second ball screw pair 10 are opposite, the screw nut of the first ball screw pair 9 and the screw nut of the second ball screw pair 10 horizontally move in opposite directions, so as to drive the two groups of connecting rods 8 to approach or move away from each other; when the two groups of connecting rods 8 move linearly and oppositely, the first straight gear 5 and the second straight gear 6 connected with the connecting rods move horizontally along with the connecting rods, and under the action of the rack 7, the first straight gear 5 rotates anticlockwise, and the second straight gear 6 rotates clockwise, so that the left support rod 3 and the right support rod 4 drive one end of the screen main body 2 to be wound inwards respectively; in a similar way, when two sets of connecting rods 8 carried out straight line back of the body motion, first spur gear 5 and second spur gear 6 connected with it also carried out horizontal migration thereupon to under the effect of rack 7, first spur gear 5 carried out clockwise rotation, and second spur gear 6 carries out anticlockwise rotation, thereby makes left vaulting pole 3 and right vaulting pole 4 drive the one end of screen main part 2 respectively and expandes to both ends, comes into operation.

The invention has the advantages that the screen main body 2 is convenient to roll or unfold and simple to operate, the screen main body 2 consists of the metal coating 201, the elastic fiber rib 202, the adhesive layer 203, the carbon black layer 204 and the polyurethane layer 205, the elastic fiber rib 202 is arranged to increase the elasticity of the screen, the wrinkle deformation caused by long-time bending is avoided, and the back of the screen is shielded by the carbon black layer 10 to facilitate reflective imaging. The polyester-polyurethane layer 205 is provided with spandex, so that the polyurethane-polyurethane composite material has strong elasticity and can be naturally recovered after being folded; the metal silver powder is arranged in the metal coating 201, so that the curtain gain effect can be improved, and the curtain is worthy of popularization.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 of collapsible anti light, includes mount pad and the screen main part of setting on the mount pad, its characterized in that: the lower end of the mounting seat is provided with a left support rod and a right support rod, a driving device and a linkage assembly are arranged inside the mounting seat, the left support rod and the right support rod are driven by the driving device and perform linear opposite movement on the mounting seat, the left support rod and the right support rod are driven by the linkage assembly to perform rotation while performing linear movement, the left support rod and the right support rod are in mirror symmetry about the screen main body, a plurality of clamping holes are formed in both ends of the screen main body, accommodating cavities matched with the screen main body are formed in the sides, close to each other, of the left support rod and the right support rod, and positioning assemblies for quickly fixing the screen main body are arranged in the accommodating cavities;

the left support rod and the right support rod are formed by splicing an installation shell and a fixed shell, a placing groove is formed in the bottom of the installation shell, a positioning assembly is arranged in the placing groove and comprises a positioning block, a second spring and a pull rod, one end of the pull rod is fixedly connected with a hanging ring, the other end of the pull rod extends into the placing groove and penetrates through the second spring to be fixedly connected with the positioning block, a positioning groove is formed in the lower end face of the fixed shell, and one end, away from the pull rod, of the positioning block is arranged in an arc shape and inserted into the positioning groove;

one end of the mounting shell, which is close to the screen main body, is provided with first movable grooves, the number of which is the same as that of the clamping holes, stand columns are arranged in the first movable grooves in a sliding manner, one ends of the stand columns are inserted into the clamping holes in a penetrating manner, the other ends of the stand columns extend into the first movable grooves and are fixedly connected with limiting blocks, one sides of the limiting blocks are fixedly connected with first springs, the number of the clamping holes is not less than four groups, one side of the fixing shell, which is close to the mounting shell, is fixedly provided with a plurality of longitudinal insertion rods which are linearly distributed, and the side wall of the mounting shell is provided with longitudinal insertion holes for accommodating the longitudinal insertion rods;

the set casing is close to the one end of screen main part and offers the second movable groove with the same quantity of card hole, and slidable mounting has the promotion box in the second movable groove, promotes the box cover and establishes on the stand, promotes one side fixedly connected with door shape screw thread seat of box, and the interpolation of door shape screw thread seat is equipped with adjusting screw, and adjusting screw keeps away from the one end that promotes the box and stretches out set casing and fixed connection knob, promotes the box and all runs through with the stopper is inside and has seted up the through-hole, and the through-hole cooperatees with adjusting screw.

2. The screen of claim 1, wherein: the mounting base is internally provided with a cavity, a driving device is arranged in the cavity, the driving device comprises a first ball screw pair, a second ball screw pair and a stepping motor, an output shaft of the stepping motor is fixedly connected with a lead screw of the second ball screw pair, a lead screw of the first ball screw pair is coaxially welded with a lead screw of the second ball screw pair, and the thread directions of the lead screws of the first ball screw pair and the second ball screw pair are opposite.

3. A foldable, light-resistant screen as recited in claim 2, wherein: the mounting seat is located the front end of cavity and has seted up the movable groove, and the movable inslot is equipped with the linkage subassembly, the linkage subassembly includes first straight-tooth gear, second straight-tooth gear and rack, the rack meshes respectively and connects first straight-tooth gear and second straight-tooth gear, and the upper end of first straight-tooth gear is passed through the connecting rod and is connected with the screw nut of first ball screw pair, and the upper end of second straight-tooth gear is passed through the connecting rod and is connected with the screw nut of second ball screw pair.

4. A foldable, light-resistant screen according to claim 3, wherein: the upper end of the left support rod stretches into the movable groove and is fixedly connected with the first straight gear, the upper end of the right support rod stretches into the movable groove and is fixedly connected with the second straight gear, the first straight gear and the second straight gear are respectively rotatably connected with a group of connecting rods, and a screw nut of the first ball screw pair and a screw nut of the second ball screw pair are fixedly connected with a group of connecting rods.

5. The screen of claim 1, wherein: the inside of set casing runs through and has seted up the perforation, and slidable mounting has the inserted bar in the perforation, and in the lower extreme of inserted bar stretched into the constant head tank, the slot that holds the inserted bar was seted up to the top lower extreme of installation shell.

6. The screen of claim 1, wherein: the screen main body sequentially comprises a metal coating, an adhesive layer and a polyester ammonia layer from top to bottom, an elastic fiber rib is connected between the metal coating and the adhesive layer, and a carbon black layer is connected between the adhesive layer and the polyester ammonia layer.

7. The screen of claim 6, wherein: the polyurethane layer is internally provided with spandex, the metal coating is internally provided with metal silver powder, the bonding layer is made of polyacrylate adhesive material, and the thickness of the bonding layer is smaller than that of the carbon black layer.