CN214846217U

CN214846217U - Electric cross type floor-pulling projection screen

Info

Publication number: CN214846217U
Application number: CN202121059868.0U
Authority: CN
Inventors: 郭锦波; 萧毅; 秦文君
Original assignee: Guangzhou Xiongrui Projection Curtain Manufacturing Co ltd
Current assignee: Guangzhou Xiongrui Projection Curtain Manufacturing Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-11-23
Anticipated expiration: 2031-05-18

Abstract

The utility model is used in the field of projection screens, in particular to an electric cross type floor-pulling projection screen, which comprises a cross type expansion bracket, a lifting end and a sliding end; the reel pipe is arranged on the side edge of the crossed telescopic frame, and a torsion spring is arranged in the reel pipe; one end of the curtain is connected with the reel pipe, and the other end of the curtain is connected with the lifting end of the crossed telescopic frame; the transfer line, one end is connected with the motor, the transfer line is connected with the transmission of crossing expansion bracket, the transfer line is used for driving crossing expansion bracket and stretches out and draws back, when needs prop up the curtain, the transfer line drives crossing expansion bracket under the drive of motor and rises, in order to pull up the curtain from the reelpipe and strut, the reelpipe can rotate when owing to the curtain pulls up and make the torsional spring tighten up, so when needs rolling curtain, the transfer line drives crossing expansion bracket under the drive of motor and contracts back, the reelpipe can be under the resilience effect of torsional spring and reverse in order to roll up the curtain, this kind of projection curtain passes through the motor and the automatic rolling of torsional spring realization curtain and struts, convenient and fast that the use gets up.

Description

Electric cross type floor-pulling projection screen

Technical Field

The utility model is used for the projection curtain field especially relates to an electronic crossing floor-pulling projection curtain.

Background

The existing projection screen generally adopts a manual structure, usually, the screen is rolled and pulled manually, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an electronic crossing ground and draw projection curtain, can realize drawing the curtain automatically and roll up the curtain, use convenient and fast.

The utility model provides a technical scheme that its technical problem adopted is: an electric cross type floor-pulling projection screen comprises

The crossing type telescopic frame is provided with a lifting end and a sliding end;

the reel pipe is arranged on the side edge of the crossed telescopic frame, and a torsion spring is arranged in the reel pipe;

one end of the curtain is connected with the reel pipe, and the other end of the curtain is connected with the lifting end of the crossed telescopic frame;

and one end of the transmission rod is connected with a motor, and the transmission rod is in transmission connection with the sliding end of the crossed telescopic frame so as to drive the crossed telescopic frame to stretch.

The technical scheme at least has the following advantages or beneficial effects: in the course of the work, when needs prop the curtain, the transfer line drives the crossing expansion bracket and rises under the drive of motor, in order to pull up the curtain from the reelpipe and prop open, because the reelpipe can rotate and make the torsional spring tighten up when the curtain pulls up, so when needs rolling curtain, the transfer line drives the crossing expansion bracket and contracts under the drive of motor, the reelpipe can be in order to roll the curtain rolling in the reversal under the resilience effect of torsional spring, this kind of projection curtain passes through the motor and the torsional spring realizes the automatic rolling of curtain and struts, convenient and fast gets up in use.

Further as the utility model discloses technical scheme's improvement, crossing expansion bracket both sides all are equipped with the curtain, the both sides of crossing expansion bracket all are equipped with reelpipe, each all be equipped with in the reelpipe the torsional spring.

Further conduct the utility model discloses technical scheme's improvement, crossing expansion bracket one end is equipped with the roof, the crossing expansion bracket other end is equipped with the bottom plate, the crossing expansion bracket includes two intercrossing articulated connecting rods, one of them the both ends of connecting rod respectively with the roof with the bottom plate rotates to be connected, another the both ends of connecting rod respectively with the roof with bottom plate sliding connection, connecting rod sliding connection be in the one end of bottom plate with the transfer line transmission is connected.

Further as the utility model discloses technical scheme's improvement, the connecting rod includes two tip straight-bars articulated each other.

Further as the utility model discloses technical scheme's improvement, the roof with the slide rail is all installed to the opposite side of bottom plate, to sliding connection the roof with the bottom plate the connecting rod, its both ends are respectively through the pulley assembly in each in the slide rail.

Further conduct the utility model discloses technical scheme's improvement, the crossing expansion bracket is equipped with a plurality ofly, each the crossing expansion bracket is on a parallel with the curtain is interval arrangement side by side.

Further conduct the utility model discloses technical scheme's improvement, adjacent two through same between the crossing expansion bracket the transfer line drives.

Further conduct the utility model discloses technical scheme's improvement, the transfer line has positive thread festival section and reverse thread festival section, positive thread festival section with reverse thread festival section respectively with adjacent two the slip end of crossing expansion bracket passes through the screw and connects.

Further conduct the utility model discloses technical scheme's improvement, the first synchronizing wheel of power take off end installation of motor, the one end installation second synchronizing wheel of transfer line, first synchronizing wheel with the second synchronizing wheel passes through synchronous belt drive and connects.

Further conduct the utility model discloses technical scheme's improvement, the support is all installed at the both ends of bottom plate, the reelpipe both ends are fixed two between the support.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the embodiment shown in FIG. 1;

FIG. 3 is an exploded view of the embodiment of FIG. 1;

fig. 4 is a schematic structural diagram of a double curtain in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cross-type telescopic frame according to an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of a plurality of is one or more, the meaning of a plurality of is more than two, and the meaning of more than two is understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1-5, the utility model provides an electronic crossing floor-drawing projection curtain, it mainly includes crossing expansion bracket 1, reelpipe 2, curtain 3 and transfer line 4, wherein crossing expansion bracket 1 has lift end and slip end, the side at crossing expansion bracket 1 is established to reelpipe 2, be equipped with torsional spring 200 in the

reelpipe

2, 3 one end of curtain are connected with reelpipe 2, the other end is connected with crossing expansion bracket 1's lift end, 4 one end of transfer line are connected with motor 5, transfer line 4 is connected with crossing expansion bracket 1's slip end transmission, in order to drive crossing expansion bracket 1 and stretch out and draw back.

In the course of the work, when needs prop up curtain 3, transfer line 4 drives crossing expansion bracket 1 and rises under motor 5's drive, in order to prop up curtain 3 from reelpipe 2 and prop up, because when curtain 3 draws, reelpipe 2 can rotate and make torsional spring 200 tighten up, be used for tightening curtain 3 on the one hand, on the other hand, when needs rolling curtain 3, transfer line 4 can drive crossing expansion bracket 1 and return back under motor 5's drive, and the torsional spring 200 who tightens up is owing to have the resilience force, so reelpipe 2 can reverse in order to roll curtain 3 under torsional spring 200's resilience force effect, thereby realize curtain 3's automatic rolling and distraction through motor 5 and torsional spring 200, its degree of automation is higher.

Referring to fig. 3 and 5, in some embodiments, a top plate 10 is disposed at one end of the cross type telescopic frame 1, a bottom plate 11 is disposed at the other end of the cross type telescopic frame 1, the cross type telescopic frame 1 includes two connecting rods 101 hinged to each other in a cross manner, wherein two ends of one connecting rod 101 are rotatably connected to the top plate 10 and the bottom plate 11 respectively, two ends of the other connecting rod 101 are slidably connected to the top plate 10 and the bottom plate 11 respectively, and one end of the connecting rod 101 slidably connected to the bottom plate 11 is in transmission connection with the transmission rod 4.

Referring to fig. 5, wherein the connecting rod 101 comprises two straight rods 100 hinged to each other, in the present invention, the middle portions of the straight rods 100 of the two connecting rods 101 are cross-connected through a rotating shaft.

In the use process, the transmission rod 4 drives one of the connecting rods 101 to slide under the driving of the motor 5, and the other connecting rod 100 carries out corresponding driven, thereby realizing the action of supporting or contracting.

In the present application, the sliding end of the cross type telescopic frame 1 is the end of the connecting rod 101 slidably connected to the bottom plate 11.

In some embodiments, the sliding rails 7 are installed on opposite sides of the top plate 10 and the bottom plate 11, and for the connecting rod 101 slidably connecting the top plate 10 and the bottom plate 11, both ends thereof are respectively assembled in the sliding rails 7 through pulleys, so that the sliding process of the connecting rod 101 is more stable.

Specifically, the slide rail 7 extends along the longitudinal direction of the top plate 10 and the bottom plate 11.

In some embodiments, the cross type telescopic frame 1 is provided with a plurality of cross type telescopic frames 1, and each cross type telescopic frame 1 is parallel to the curtain 3 and arranged at intervals side by side, so that the larger curtain 3 can be supported, and the curtain 3 is more firm, for example, in the utility model, the two cross type telescopic frames 1 are used for supporting the curtain 3.

Furthermore, two adjacent cross type telescopic frames 1 are driven through the same transmission rod 4.

Specifically, the transmission rod 4 is provided with a positive thread section and a negative thread section, the positive thread section and the negative thread section are respectively connected with the sliding ends of two adjacent crossed expansion brackets 1 through nuts, the motor 5 drives the transmission rod 4 to rotate in the working process, and the transmission rod 4 drives the sliding ends of the connecting rods 101 to move in the sliding rails 7 through the nuts in the rotating process.

Specifically, this transfer line 4 is positive and negative lead screw, it can be understood, half of positive and negative lead screw is positive screw, another half is reverse screw, positive and negative lead screw is located between two adjacent crossing expansion bracket 1, wherein the screw is all installed to the slip end of every connecting rod 101, the positive screw assembly of positive and negative lead screw is on the screw of one of them connecting rod 101, the reverse screw assembly of positive and negative lead screw is on the screw of another connecting rod 101, when motor 5 drive positive and negative lead screw was rotatory, positive and negative lead screw can drive between two adjacent connecting rods 101 in opposite directions or the back slip is with the shrink or prop up curtain 3, this kind of structure is owing to adopt positive and negative lead screw to carry out the transmission, so holistic structure is compacter, area occupied is littleer, and guarantee two crossing expansion bracket 1 synchronous telescope.

In addition, the bottom plate 11 is further provided with a supporting block, and the supporting block is supported in the middle of the transmission rod 4 and is connected with the transmission rod 4 through a bearing.

Of course, the transmission rod 4 of the present application is not limited to the transmission mode of the positive and negative screw rods, and can also adopt the transmission modes such as worm and gear transmission, crank and connecting rod transmission and the like for transmission.

In some embodiments, both sides of the cross type telescopic frame 1 are provided with the curtains 3, both sides of the cross type telescopic frame 1 are provided with the rolling pipes 2, and each rolling pipe 2 is internally provided with the torsion spring 200, so that a structure of the double curtains 3 is formed, and the two rolling pipes 2 can roll the curtains 3 at the same time.

In addition, one cross type stretching frame 1 may be used as a support in the design of the single-sided curtain 3, or two or more cross type stretching frames 1 may be used as a support, and one cross type stretching frame 1 may be used as a support in the design of the double-sided curtain 3, or two or more cross type stretching frames 1 may be used as a support.

It should be noted that a first synchronizing wheel is installed at the power output end of the motor 5, a second synchronizing wheel is installed at one end of the transmission rod 4, and the first synchronizing wheel and the second synchronizing wheel are connected through a synchronous belt in a transmission manner.

Specifically, first synchronizing wheel and second synchronizing wheel are the gear structure, are equipped with the rack with first synchronizing wheel and second synchronizing wheel intermeshing on the hold-in range, and motor 5 drives first synchronizing wheel rotatory for first synchronizing wheel drives second synchronizing wheel and transfer line 4 through the synchronous belt and rotates.

The supports 8 are installed at the two ends of the bottom plate 11, and the two ends of the reel pipe 2 are fixed between the two supports 8.

In addition, as shown in fig. 1, fig. 2, and fig. 3, a front baffle 9, a rear baffle 20, a left baffle 19, a right baffle 12, and an upper baffle 13 are further installed on the bottom plate 11, thereby forming the box body, wherein the upper baffle 13 has an avoiding groove 130 opened along the length direction, the avoiding groove 130 provides an access passage for the cross type expansion bracket 1 and the curtain 3 on one hand, and can be mutually matched with the top plate 10 on the other hand, when the curtain 3 is rolled up, the top plate 10 can block the avoiding groove 130, thereby preventing external impurities from entering the box body from the avoiding groove 130.

Of course, the present invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. The utility model provides an electronic crossing ground draws projection screen which characterized in that: comprises that

A cross type telescopic frame (1) with a lifting end and a sliding end;

the roller pipe (2) is arranged on the side edge of the cross type telescopic frame (1), and a torsion spring (200) is arranged in the roller pipe (2);

one end of the curtain (3) is connected with the reel pipe (2), and the other end of the curtain is connected with the lifting end of the crossed telescopic frame (1);

one end of the transmission rod (4) is connected with a motor (5), and the transmission rod (4) is in transmission connection with the sliding end of the crossed telescopic frame (1) so as to drive the crossed telescopic frame (1) to stretch.

2. The electric cross-type floor projection screen of claim 1, wherein: crossing expansion bracket (1) both sides all are equipped with curtain (3), the both sides of crossing expansion bracket (1) all are equipped with reelpipe (2), each all be equipped with in reelpipe (2) torsional spring (200).

3. The electric cross-type floor projection screen of claim 1 or 2, wherein: crossing expansion bracket (1) one end is equipped with roof (10), crossing expansion bracket (1) other end is equipped with bottom plate (11), crossing expansion bracket (1) includes two intercrossing articulated connecting rods (101), one of them the both ends of connecting rod (101) respectively with roof (10) with bottom plate (11) rotate to be connected, another the both ends of connecting rod (101) respectively with roof (10) with bottom plate (11) sliding connection, connecting rod (101) sliding connection be in the one end of bottom plate (11) with transfer line (4) transmission is connected.

4. The motorized cross-draw projection screen of claim 3, wherein: the connecting rod (101) comprises two straight rods (100) with the end parts hinged with each other.

5. The motorized cross-draw projection screen of claim 3, wherein: the opposite sides of the top plate (10) and the bottom plate (11) are respectively provided with a sliding rail (7), and the two ends of the connecting rod (101) which is connected with the top plate (10) and the bottom plate (11) in a sliding way are respectively assembled in the sliding rails (7) through pulleys.

6. The motorized cross-draw projection screen of claim 5, wherein: the plurality of crossed telescopic frames (1) are arranged, and the crossed telescopic frames (1) are parallel to the curtain (3) and are arranged side by side at intervals.

7. The motorized cross-draw projection screen of claim 6, wherein: two adjacent crossed telescopic frames (1) are driven by the same transmission rod (4).

8. The motorized cross-draw projection screen of claim 7, wherein: the transmission rod (4) is provided with a positive thread section and a negative thread section, and the positive thread section and the negative thread section are respectively connected with the sliding ends of two adjacent crossed expansion brackets (1) through nuts.

9. The electric cross-type floor projection screen of claim 1, wherein: the power output end of the motor (5) is provided with a first synchronous wheel, one end of the transmission rod (4) is provided with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected through a synchronous belt in a transmission mode.

10. The motorized cross-draw projection screen of claim 3, wherein: support (8) are all installed at the both ends of bottom plate (11), reelpipe (2) both ends are fixed two between support (8).