CN112987474A

CN112987474A - Floor type electric lifting projection curtain

Info

Publication number: CN112987474A
Application number: CN201911200128.1A
Authority: CN
Inventors: 杜丙同; 李春元; 崔瑞男
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-06-18

Abstract

The invention discloses a floor type electric liftable projection curtain, which relates to the technical field of electric projection curtains and comprises a shell, a curtain, a scroll mechanism and a lifting support; the scroll mechanism consists of a motor and a winding drum, and the lower end of the curtain is connected with the winding drum and wound on the winding drum; the curtain lifting support consists of a cross beam and four connecting rods, the cross beam and the shell form a hexagonal structure, and can be accommodated in the shell in a retracting state and can support a curtain in an unfolding state; the connecting rod and the cross beam are supported by a pneumatic spring, and the upper end of the curtain is fixed on the cross beam; the driving motor rotates forwards to wind the curtain, and the curtain pulls the lifting support to retract; the driving motor rotates reversely to release the curtain, and the lifting support realizes the complete unfolding of the curtain under the support of the pneumatic spring; the curtain has the advantages that the curtain is unfolded and stored through the motor, the curtain has strong stability during unfolding, the size is very small during storage, and the curtain is convenient to carry.

Description

Floor type electric lifting projection curtain

Technical Field

The invention relates to the technical field of electric projection curtains, in particular to a floor type electric liftable projection curtain.

Background

Projection curtains are widely used in home entertainment, offices, large conferences and other occasions, and the existing curtains are usually fixed on a wall or fixedly installed at a high place in a hanging manner, and are folded or unfolded by using electric reels. The installation of projection curtain is more loaded down with trivial details like this, and it is necessary to develop a portable projection curtain, accomodates back size urine and removes and carry, and development back stable in structure, curtain are level and smooth.

Disclosure of Invention

The invention aims to provide a portable projection curtain which has a small size after being stored, can be used in a sitting mode, and can be automatically and stably unfolded and stored. In order to achieve the purpose, the invention adopts the technical scheme that the floor type electric liftable projection curtain comprises a curtain, a shell, a scroll mechanism and a lifting support.

The casing is mainly used for accommodating the curtain and the lifting support when the curtain is wound, and the curtain is used as a base when being unfolded.

The winding drum mechanism comprises a motor and a winding drum, the winding drum is fixed inside the shell through a bearing, the winding drum can rotate in the shell, the motor is a tubular motor, the motor is installed inside the winding drum and is directly connected with the winding drum, and the winding drum can be driven to rotate forwards and backwards when the motor rotates forwards and backwards.

The lifting support comprises a cross beam and four connecting rods; the lower end of the first connecting rod is hinged with the shell, the upper end of the first connecting rod is hinged with the lower end of the second connecting rod, and the upper end of the second connecting rod is hinged with the cross beam; the lower end of the third connecting rod is hinged with the shell, the upper end of the third connecting rod is hinged with the lower end of the fourth connecting rod, and the upper end of the fourth connecting rod is hinged with the cross beam; the first connecting rod and the second connecting rod are respectively in a symmetrical structure with the third connecting rod and the fourth connecting rod; the cross beam and the four connecting rods can be accommodated in the shell in a retracting state; when the foldable cabinet is unfolded, the four connecting rods, the cross beams and the shell form a hexagonal structure, and the cross beams are in a horizontal state.

A first pneumatic spring is arranged between the shell and the first connecting rod, two ends of the first pneumatic spring are respectively hinged with the shell and the first connecting rod, and the first pneumatic spring drives the first connecting rod and the shell to rotate; a second pneumatic spring is arranged between the first connecting rod and the second connecting rod, two ends of the second pneumatic spring are respectively hinged with the first connecting rod and the second connecting rod, and the second pneumatic spring drives the first connecting rod and the second connecting rod to rotate; and a third pneumatic spring is arranged between the second connecting rod and the cross beam, two ends of the third pneumatic spring are respectively hinged with the second connecting rod and the cross beam, and the third pneumatic spring drives the second connecting rod and the cross beam to rotate.

Similarly, a fourth pneumatic spring is arranged between the shell and the third connecting rod, two ends of the fourth pneumatic spring are respectively hinged with the shell and the third connecting rod, and the fourth pneumatic spring drives the third connecting rod to rotate with the shell; a fifth pneumatic spring is arranged between the third connecting rod and the fourth connecting rod, two ends of the fifth pneumatic spring are respectively hinged with the third connecting rod and the fourth connecting rod, and the fifth pneumatic spring drives the third connecting rod and the fourth connecting rod to rotate; and a sixth pneumatic spring is arranged between the fourth connecting rod and the cross beam, two ends of the sixth pneumatic spring are respectively hinged with the fourth connecting rod and the cross beam, and the sixth pneumatic spring drives the fourth connecting rod and the cross beam to rotate.

The lower extreme and the reel of curtain are connected, and upper end and crossbeam fixed connection, the curtain is convoluteed on the reel.

When the curtain winding device is used, the driving motor rotates in the positive direction to wind the curtain, the curtain pulls the lifting support to retract, the pneumatic spring is compressed, and the lifting support is folded; when the curtain is completely wound on the winding drum, the curtain, the winding mechanism and the lifting bracket are completely contained in the shell; the curtain can be relaxed in the counter rotation of the driving motor, the curtain is completely unfolded by the lifting support under the support of the pneumatic spring, the starting spring provides power for unfolding, and the curtain is tensioned and has a smooth surface.

Preferably, in order to save cost or simplify installation, the number of the pneumatic springs can be reduced from six to four, namely, two of the first pneumatic spring, the second pneumatic spring and the third pneumatic spring are selected, and two of the fourth pneumatic spring, the fifth pneumatic spring and the sixth pneumatic spring are selected, so that when the four pneumatic springs are used, the lifting force of the bracket during unfolding is influenced, and the stability of the curtain lifting bracket is not influenced;

preferably, a spring is installed on the bottom surface inside the shell, and when the curtain lifting support is in a retraction state, the first connecting rod and the third connecting rod press the spring tightly; at the initial stage of the unfolding process, the spring pushes the first connecting rod and the third connecting rod to rotate, so that the unfolding process is smoother and more stable.

Advantageous effects

The invention has the beneficial effects that: the whole mechanism is not in sliding connection, the structure is stable, and the shape is simple and elegant; the lifting process is smooth, the speed is uniform and stable, and the noise is low; the curtain lifting support provides a larger tension force in an unfolded state, and the curtain is flat; the size is very little after accomodating, portable, and for 100 inches curtain, the height can reach below 10cm after accomodating.

Drawings

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

FIG. 2 is a schematic view of a reel mechanism of the present invention;

FIG. 3 is a schematic view of the lifting stand structure of the present invention

FIG. 4 is a structural view of the fully retracted state of the lifting stand of the present invention;

FIG. 5 is a schematic view of the spring installation of the present invention;

FIG. 6 is a schematic structural view of another embodiment of the lifting frame of the present invention;

in the figure, 1, a shell, 2, a scroll mechanism, 3, a lifting support, 4, a curtain, 1-1, a first spring, 1-2, a second spring, 2-1, a reel support, 2-2, a reel, 2-3, a tubular motor, 2-4, a bearing, 3-1, a cross beam, 3-2, a first connecting rod, 3-3, a second connecting rod, 3-4, a third connecting rod, 3-5, a fourth connecting rod, 3-6, a first pneumatic spring, 3-7, a second pneumatic spring, 3-8, a third pneumatic spring, 3-9, a fourth pneumatic spring, 3-10, a fifth pneumatic spring and 3-11, a sixth pneumatic spring are arranged.

Detailed Description

The present invention will be described in further detail below with reference to the accompanying drawings in the embodiments of the present invention.

In fig. 1, a scroll mechanism (2) and a lifting bracket (3) are fixed inside a shell (1), the lower end of a curtain (4) is connected with the scroll mechanism (2), the upper end of the curtain is fixedly connected with a beam (3-1) of the lifting bracket (3), and the curtain (4) is wound on a winding drum (2-2).

Fig. 2 is a schematic view of a reel mechanism (2), the reel mechanism (2) comprises a reel (2-2), a tubular motor (2-3), a bearing (2-4), a reel support (2-1), the tubular motor (2-3) extends into the reel (2-2) and is directly connected with the reel (2-2), two ends of the reel (2-2) are respectively connected with the reel support (2-1) through the bearing (2-4), and the reel support (2-1) is fixed on a shell (1).

FIG. 3 is a schematic structural diagram of a lifting support (3), wherein the lifting support (3) comprises a cross beam (3-1), four connecting rods (3-2, 3-3, 3-4 and 3-5) and six pneumatic springs (3-6, 3-7, 3-8, 3-9, 3-10 and 3-11); the lower end of the first connecting rod (3-2) is hinged with the middle part of the shell (1), the upper end of the first connecting rod is hinged with the lower end of the second connecting rod (3-3), and the upper end of the second connecting rod (3-3) is hinged with the middle part of the cross beam (3-1); the lower end of the third connecting rod (3-4) is hinged with the middle part of the shell (1), the upper end of the third connecting rod is hinged with the lower end of the fourth connecting rod (3-5), and the upper end of the fourth connecting rod (3-5) is hinged with the middle part of the cross beam (3-1); the first connecting rod (3-2) and the second connecting rod (3-3) are respectively in a symmetrical structure with the third connecting rod (3-4) and the fourth connecting rod (3-5); two ends of the first pneumatic spring (3-6) are respectively hinged with the shell (1) and the first connecting rod (3-2); two ends of a second pneumatic spring (3-7) are respectively hinged with the first connecting rod (3-2) and the second connecting rod (3-3), and two ends of a third pneumatic spring (3-8) are respectively hinged with the second connecting rod (3-3) and the cross beam (3-1); as shown in FIG. 3, the fourth pneumatic spring (3-9), the fifth pneumatic spring (3-10), and the sixth pneumatic spring (3-11) are respectively placed in a symmetrical structure with the first pneumatic spring (3-6), the second pneumatic spring (3-7), and the third pneumatic spring (3-8).

Fig. 4 is a schematic view of the lifting bracket (3) in a fully retracted state, the curtain (4) is fully wound around the winding mechanism (2), the connecting rod is folded, the pneumatic spring is compressed, and the lifting bracket (3) is fully retracted inside the housing.

In FIG. 5, a first spring (1-1) and a second spring (1-2) are fixed at the bottom of the shell and are symmetrically arranged; when in a recovery state, the first connecting rod (3-1) compresses the first spring (1-1), and the third connecting rod (3-3) compresses the second spring (1-2).

FIG. 6 is a schematic structural view of another embodiment of the lifting bracket (3) of the present invention, in which the lower end of the first connecting rod (3-2) is hinged to the end of the housing (1), the upper end of the first connecting rod is hinged to the lower end of the second connecting rod (3-3), and the upper end of the second connecting rod (3-3) is hinged to the end of the cross beam (3-1); the lower end of the third connecting rod (3-4) is hinged with the other end of the shell (1), the upper end of the third connecting rod is hinged with the lower end of the fourth connecting rod (3-4), and the upper end of the fourth connecting rod (3-4) is hinged with the other end of the beam (3-1); the first connecting rod (3-2) and the second connecting rod (3-3) are respectively in a symmetrical structure with the third connecting rod (3-4) and the fourth connecting rod (3-5); the connecting rod is folded towards the center of the shell (1).

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. The utility model provides an electronic liftable projection curtain of ground formula, includes curtain, casing, spool mechanism, lifting support, its characterized in that: the scroll mechanism and the lifting bracket are arranged in the shell; the winding mechanism comprises a motor and a winding drum, the motor is arranged in the winding drum and is directly connected with the winding drum, and two ends of the winding drum are fixed in the shell through supports; the lifting support comprises a cross beam, 4 connecting rods and 6 pneumatic springs, wherein the cross beam, 4 connecting rods and the shell are hinged to form a hexagonal structure, and the hinged position is provided with 6 pneumatic springs.

2. The floor-mounted electric liftable projection curtain as claimed in claim 1, wherein the lower end of the first connecting rod is hinged to the housing, the upper end of the first connecting rod is hinged to the lower end of the second connecting rod, and the upper end of the second connecting rod is hinged to the cross beam; the lower end of the third connecting rod is hinged with the shell, the upper end of the third connecting rod is hinged with the lower end of the fourth connecting rod, and the upper end of the fourth connecting rod is hinged with the cross beam; the first connecting rod and the second connecting rod are respectively in a symmetrical structure with the third connecting rod and the fourth connecting rod.

3. The floor-mounted electric liftable projection curtain as claimed in claim 1, wherein two ends of the first pneumatic spring are respectively hinged to the housing and the first connecting rod; two ends of the second pneumatic spring are respectively hinged with the first connecting rod and the second connecting rod; two ends of the third pneumatic spring are respectively hinged with the second connecting rod and the cross beam; two ends of the fourth pneumatic spring are respectively hinged with the shell and the third connecting rod; two ends of the fifth pneumatic spring are respectively hinged with the third connecting rod and the fourth connecting rod; two ends of the sixth pneumatic spring are respectively hinged with the fourth connecting rod and the cross beam; the beam is in a horizontal state.

4. The floor-mounted electric liftable projection curtain as claimed in claim 1, wherein the motor is a tubular motor, and the motor is mounted inside the winding drum and directly connected to the winding drum.

5. The floor-mounted electric liftable projection screen of claim 1, wherein the lower end of the screen is connected to the winding drum, the upper end of the screen is fixedly connected to the cross beam, and the screen is wound on the winding drum.

6. The floor-mounted electric liftable projection screen of claim 1, wherein the spring is mounted on the bottom surface inside the housing.