WO2016091117A1

WO2016091117A1 - Integrated foldable frame projection screen

Info

Publication number: WO2016091117A1
Application number: PCT/CN2015/096331
Authority: WO
Inventors: 窦志刚
Original assignee: 窦志刚
Priority date: 2014-12-08
Filing date: 2015-12-03
Publication date: 2016-06-16
Also published as: CN204241827U

Abstract

An integrated foldable frame projection screen, comprising a screen (6), a scroll (7), a frame, an electromagnet and a magnetic stripe (5); the frame consists of two long side frames (3), four short side frames (2) and six shaftless hinges (1); the shaftless hinges (1) provided between the long side frames (3) and the short side frames (2) and at the inner sides thereof are respectively and fixedly connected to the tube walls of the long side frames (3) and the short side frames (2) at the inner side of the frame via connecting rods (8) of rotary disks (9) of the shaftless hinges (1); the shaftless hinges (1) provided between the two short side frames (2) and at the inner sides thereof are respectively and fixedly connected to the tube walls of the two short side frames (2) at the outer side of the frame via the connecting rods (8) of the rotary disks (9) of the shaftless hinges (1); two groups of electromagnets are respectively and fixedly connected to end sockets of the short side frames (2); a back surface of the frame and two ends of the long side frames (3) are respectively and fixedly connected to supports (4); at least one scroll (7) is fixedly connected and placed between the supports (4) disposed at two ends of the long side frames (3); the screen (6) is placed between the frame and the scroll (7), and two edges of the screen (6) are respectively and fixedly connected to the long side frames (3) or the scrolls (7) fixedly connected to the long side frames (3); and two groups of magnetic stripes (5) are fixedly connected, and are respectively placed on the other two edges of the screen (6) and between the screen (6) and the short side frames (2) of the frame.

Description

Overall folding frame projection screen

Technical field

[0001] The present invention relates to projection screens, and more particularly to an integral folded frame projection screen.

Background technique

[0002] Projection screens are tools used to display images and video files in movies, offices, home theaters, and large conference venues. There are many types of projection screens, and projection screens for office, home theater and large-scale conferences are mostly equipped with electric projection screens and frame projection screens. The electric projection screen adopts a reel retracting structure, which has the advantages of small volume after winding, convenient winding, and easy maintenance of the screen surface. However, due to uneven force on the four sides, V-shaped lines, water ripples, and uneven surfaces are prone to occur after use. The edges are not straight and difficult to repair. The frame projection screen is fixed by a profile to form a frame. The frame is provided with a spring hook or a buckle. The curtain is fixed to the frame by a spring hook or a buckle. The frame projection screen is fixed by the frame, and has four sides with uniform force, good flatness and difficulty. The advantages of deformation, but also have the disadvantages of large area, difficult to store, easy to dirty and easy to aging, and poor coordination with the surrounding environment; there are also structures for assembling and reattaching the screen with several components of the frame projection screen, and the disadvantage is assembly. The frame requires threads to be fixed and not aesthetically pleasing, and the curtain and the frame are not easily carried. technical problem

[0003] The technical problem to be solved by the present invention is to provide an integral folding frame projection screen for the above-mentioned defects of the prior art, which can fold the frame and the screen into a minimum volume, and the frame and the curtain are integrally connected. The structure is small, and the structure of the frame and the curtain is integrated to facilitate carrying and collecting.

Problem solution

Technical solution

[0004] The technical solution adopted by the present invention to solve the technical problem is: constructing an integral folding frame projection screen, comprising a curtain, a reel and a frame, the frame consisting of two long frames, four short frames and six no The shaft hinge is composed of a long frame and a short frame which are rectangular tubes, and two long frames and four short frames are alternately arranged symmetrically to form a rectangular frame, and six shaftless hinges are respectively built between adjacent frames and fixedly connected; The electromagnets are respectively attached to the ends of the adjacent two short frames and correspond to the shaftless hinges; the support is fixed on the back of the frame and the two ends of the long frame, and at least one reel is placed at both ends of the long frame. Fixed between the supports; The curtain is arranged between the frame and the reel, and the two sides of the curtain are respectively fixed with the reel or the long frame fixedly attached to the long frame, and the two sets of magnetic strips are respectively placed on the other two sides of the screen, the short frame of the frame and the curtain and are fixed. The shaftless hinge includes a body and a rotating disc, and the body has an arc shape of less than 180°, and the convex side and the concave side of the body are respectively blocked, and a plurality of chambers are disposed in the body, and the Nth chamber is One end is radially blocked, the other end of the N+1th chamber is radially blocked, and a slider is arranged in the chamber of the body. The rotating disc is similar in shape to the body, and the convex side of one end is radially arranged with a connecting rod, and the rotating disc is arranged in an arc. a sliding groove, the rotating disk is built in the cavity of the body, the connecting end is located outside the body, the slider is placed in the sliding groove of the rotating disk and is slidably connected, and the shaftless hinge built between the long frame and the short frame respectively passes The connecting rod of the shaftless hinge rotating disc is fixed to the long bezel on the inner side of the frame and the short bezel wall, and the shaftless hinge built between the two short bezels is respectively fixed to the frame through the connecting rod of the shaftless hinge rotating disc On the outside of the two short borders on the wall

[0005] In the integral folding frame projection screen of the present invention, the long bezel at the bottom of the frame has a built-in weight

[0006] In the overall folding frame projection screen of the present invention, the magnetic strip is a plurality of magnetic blocks arranged in sequence.

[0007] Another technical solution adopted by the present invention to solve the technical problem is: constructing an integral folding frame projection screen, comprising a curtain, a reel and a frame, the frame consisting of two long frames, four short frames and six The shaftless hinge is composed of a long frame and a short frame which are rectangular tubes, and two long frames and four short frames are alternately arranged symmetrically to form a rectangular frame, and six shaftless hinges are respectively built between adjacent frames and fixed. The electromagnets are respectively attached to the ends of the adjacent two short frames and correspond to the shaftless hinges; the support is fixed on the back of the frame and the two ends of the long frame, and at least one reel is placed at both ends of the long frame. The arranged supports are fixedly connected; the curtain is arranged between the frame and the reel, and the two sides of the screen are respectively fixed with the reel or the long frame fixedly attached to the long frame, and the two sets of magnetic strips are respectively placed on the other two sides of the screen, The short frame of the frame and the curtain are fixedly connected; the shaftless hinge comprises a body and a rotating disk, wherein the body has an arc shape of less than 180°, and the convex side and the concave side of the body are respectively blocked, and several bodies are arranged in the body. Cavity In the chamber, one end of the Nth chamber is radially blocked, and the other end of the N+1th chamber is radially blocked. The rotating disc is similar in shape to the body, and the convex side of one end is radially disposed with a connecting rod, and the rotating disc is built in The chamber of the body and the connecting end are located outside the body.

[0008] In the overall folding frame projection screen of the present invention, the rotating disk is provided with an arc-shaped sliding groove, and a slider is arranged in the cavity of the body, and the sliding block is placed in the sliding groove of the rotating disk and slidably connected. [0009] In the integral folding frame projection screen of the present invention, the shaftless hinges built between the long frame and the short frame are respectively fixed to the long frame and the short side of the frame by the connecting rod of the shaftless hinge rotating disk. On the pipe wall of the frame, the shaftless hinges embedded between the two short frames are respectively fixed to the pipe walls of the two short frames on the outer side of the frame through the connecting rods of the shaftless hinge rotating disk.

[0010] In the integral folding frame projection screen of the present invention, the long bezel at the bottom of the frame has a built-in weight

[0011] In the overall folding frame projection screen of the present invention, the magnetic strip is a plurality of magnetic blocks arranged in sequence [0012] Another technical solution adopted by the present invention to solve the technical problem is: The overall folding frame projection screen comprises a curtain, a reel and a frame. The frame comprises two long frames, four short frames and six shaftless hinges. The two long frames and the four short frames are alternately arranged symmetrically. Forming a rectangular frame, six shaftless hinges are respectively built between adjacent frames and fixed; the electromagnets are respectively fixed at the ends of two adjacent short frames, corresponding to the shaftless hinges; on the back of the frame, long The two ends of the frame are respectively fixed with the support, at least one reel is placed between the support disposed at the two ends of the long bezel and fixed; the curtain is arranged between the frame and the reel, and the two sides of the curtain are respectively fixed on the long bezel The reel or the long bezel is fixed, and the two sets of magnetic strips are respectively placed on the other two sides of the screen, between the short frame of the frame and the curtain, and are fixed; the shaftless hinge includes a body and a rotating disc, and the body is less than 180° of The arc shape, the convex side and the concave side of the body are respectively blocked, and a plurality of chambers are arranged in the body, one end of the Nth chamber is radially blocked, and the other end of the N+1th chamber is radially blocked, and the rotating disc is rotated The body shape is similar, and the convex side of one end is radially provided with a connecting rod, and the rotating disc is built in the chamber of the body, and the connecting end is located outside the body.

[0013] In the integral folding frame projection screen of the present invention, the rotating disk is provided with an arc-shaped sliding groove, and a slider is arranged in the cavity of the body, and the slider is placed in the sliding groove of the rotating disk and slidably connected.

[0014] In the integral folding frame projection screen of the present invention, the shaftless hinges built between the long frame and the short frame are respectively fixed to the long frame and the short side of the frame by the connecting rod of the shaftless hinge rotating disk. On the pipe wall of the frame, the shaftless hinges embedded between the two short frames are respectively fixed to the pipe walls of the two short frames on the outer side of the frame through the connecting rods of the shaftless hinge rotating disk.

[0015] In the overall folding frame projection screen of the present invention, the long bezel at the bottom of the frame has a built-in weight [0016] In the overall folding frame projection screen of the present invention, the magnetic strip is a plurality of magnetic blocks arranged in sequence.

[0017] The use process of the integral folding frame projection screen of the present invention is as follows: the flat 吋 is in a folded state, the 幵幵吋吋吋吋吋吋吋吋吋吋卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴卷轴And the weight of the weight is downwardly displaced, and the folded short frame is gradually opened with the shaft hinge as the rotation point, until the short frame of the right and left folds tends to be vertical, and the electromagnets fixed by the two short frame ends are energized. Adjacent, the two short borders are completely spread into a vertical border, and the magnetic strips placed between the frame and the screen are sucked together, and the screen and the frame are completely fitted to form an integral frame type projection screen. When the curtain is 收起, the electromagnet is reversed and energized, and the short borders of the left and right folds are separated. The reel attached to the long frame support retracts the curtain and drives the long frame on the bottom of the frame to move upwards. The short frame is gradually folded and folded with the shaft hinge as the rotation point until it is completely horizontal and is in a folded state.

Advantageous effects of the invention

Beneficial effect

[0018] The overall folding frame projection screen of the present invention has the following advantages: the frame of two long frames hinged and four short frames can fold the frame to a length of one long frame length X and a minimum of four short frame widths. The area, the shaftless hinge can be closely contacted on the side of each frame of the frame folding frame, and the end faces of the frame are closely contacted to make the frame more beautiful. The reel is fixedly connected with the frame to form an integral projection screen for carrying, and between the frame and the curtain. The magnetic strip makes the curtain and the frame completely fit, avoiding the disadvantages of the V-shaped pattern, the water ripple, the uneven surface and the inconsistency of the screen. The volume after folding is small, the forces on the four sides are uniform, the flatness is good, and the deformation is not easy. The utility model has the advantages of simple structure, convenient winding, easy maintenance of the screen surface, and formation of a stable fixed structure after full stretching.

Brief description of the drawing

DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

1 is a front view of a projection frame of an overall folding frame of the present invention;

2 is a top plan view of FIG. 1;

3 is a left side view of FIG. 1;

4 is a front elevational view showing the folded state of the overall folding frame projection screen of the present invention; Figure 5 is a left side view of Figure 4;

6 is a front elevational view showing a shaftless hinge of the overall folding frame projection screen of the present invention;

Figure 7 is a left side view of Figure 6;

8 is a schematic view of the K direction of FIG. 6;

Figure 9 is a cross-sectional view taken along line A-A of Figure 7;

Figure 10 is a cross-sectional view taken along line B-B of Figure 7;

[0030] FIG. 11 is a front elevational view showing the closed state of the shaftless hinge of the overall folding frame projection screen of the present invention;

[0031] FIG. 12 is a front elevational view showing the shaftless hinge of the overall folding frame projection screen of the present invention in a 90° state.

[0032] In the picture: 1 shaftless hinge, 2 short borders, 3 long borders, 4 seats, 5 magnetic strips, 6 curtains, 7 reels, 8 connecting rods, 9 rotating discs, 10 chutes, 11 bodies, 12 slides Piece.

Embodiments of the invention

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] Referring to FIG. 1 to FIG. 12, an integral folding frame projection screen of the present embodiment is disclosed, which comprises a reel 7, a curtain 6 and a frame, the frame consisting of two long bezels 3 and four short bezels 2 And six shaftless hinges 1 are composed, the long frame 3 and the short frame 2 are rectangular pipes, the length of the two short frames 2 is smaller than the long frame 3, the two long frames 3 and the four short frames 2 are alternately arranged symmetrically. Forming a rectangular frame, six shaftless hinges 1 are respectively built between adjacent frames and fixed; two sets of electromagnets are respectively attached to the ends of the short frames 2, corresponding to the shaftless hinges 1; on the back of the frame, The two ends of the long bezel 3 are respectively fixed to the support 4, and at least one reel 7 is placed between the support 4 provided at both ends of the long bezel 3 and fixed; the curtain 6 is placed between the frame and the reel 7, and the curtain 6 is The two sides are fixed to the reel 7 or the long bezel 3 fixed on the long bezel 3, and the two sets of magnetic strips 5 are respectively placed on the other two sides of the curtain 6, the short frame 2 of the frame and the curtain 6 and fixed. The structure of the shaftless hinge 1 is: it comprises a body 11 and a rotating disc 9, the body 11 has an arc shape of less than 180°, and the convex side and the concave side of the body 11 are respectively blocked, and the body 11 is provided with a plurality of a chamber, one end of the Nth chamber is radially blocked, the other end of the N+1th chamber is radially blocked, and a slider 12 is disposed in the chamber of the body 11, and the rotating disc 9 is similar in shape to the body 11, The convex side of one end is radially provided with a connecting rod 8, and the rotating disc 9 is provided with an arc-shaped sliding groove 10, the rotating disc 9 is built in the chamber of the body 11, the connecting end is located outside the body 11, and the slider 12 is placed on the rotating disc 9. The sliding slot 10 is slidably connected, and the shaftless hinge 1 built in between the long frame 3 and the short frame 2 is respectively fixed in the frame by the connecting rod 8 of the rotating plate 9 without the shaft hinge 1 On the side wall of the long bezel 3 and the short bezel 2, the shaftless hinges 1 built in between the two short bezels 2 are respectively fixed to the outside of the frame by the connecting rod 8 of the rotating disc 9 without the shaft hinge 1 The wall of the frame 2 is on the wall. The long bezel 3 at the bottom of the frame has a built-in weight. The magnetic strip 5 is a plurality of magnetic blocks arranged in sequence. This embodiment is manufactured using the prior art, and the reel 7 is a commercially available product of the prior art.

[0035] The use process of the embodiment is: the flat state is a folded state, and the projection screen is required, the reel 7 fixed on the long bezel 3 support 4 releases the screen 6, and the long bezel 3 located on the bottom surface of the frame is in its own weight. And the weight of the weight is downwardly displaced, and the folded short frame 2 is gradually opened with the shaftless hinge 1 as a rotation point, until the short border 2 which is folded in right and left tends to be vertical, and the two short borders 2 are fixed at the end. The electromagnet energizes and attracts, so that the two short frames 2 are completely spread into a vertical frame, the magnetic strip 5 placed between the frame and the screen 6 is sucked, and the screen 6 is completely attached to the frame, thereby forming an integral frame type. Projection Screen. It is necessary to put away the projection screen. The electromagnet is reversed and energized to repel each other. The short borders of the left and right folds are divided into two, and the reel 7 attached to the long bezel 3 supports 4 rolls the curtain 6 and drives the long border on the bottom surface of the frame. 3 Move up, and the fully-expanded short frame 2 is gradually folded and folded with the shaftless hinge 1 as a rotation point until it is completely horizontal and in a folded state.

[0036] While the invention has been described by the embodiments of the present invention, it will be understood that Therefore, the invention is not limited to the specific embodiments disclosed, but all the embodiments falling within the scope of the appended claims.

Claims

Claim

[Claim 1] An integral folding frame projection screen comprising a curtain, a reel and a frame, wherein the frame is composed of two long frames, four short frames and six shaftless hinges, a long frame and a short frame. The frames are rectangular tubes, and the two long frames and the four short frames are alternately arranged symmetrically to form a rectangular frame. Six shaftless hinges are respectively built between adjacent frames and fixed; the electromagnets are respectively fixed adjacent to each other. The ends of the two short frames correspond to the hinges without the shaft; the supports are fixed on the back of the frame and the two ends of the long frame, and at least one reel is placed between the supports disposed at both ends of the long frame and fixed; The curtain is arranged between the frame and the reel, and the two sides of the curtain are respectively fixed with the reel or the long frame fixedly attached to the long frame, and the two sets of magnetic strips are respectively placed on the other two sides of the screen, the short frame of the frame and the curtain and are fixed. The shaftless hinge includes a body and a rotating disc, and the body has an arc shape of less than 180°, and the convex side and the concave side of the body are respectively blocked, and a plurality of chambers are disposed in the body, and the Nth chamber is One end radial Blocking, the other end of the N+1th chamber is radially blocked, and a slider is arranged in the chamber of the body. The rotating disc is similar in shape to the body, and the convex side of one end is radially arranged with a connecting rod, and the rotating disc is provided with a curved chute. The rotating disc is built in the chamber of the body, the connecting end is located outside the body, the slider is placed in the sliding slot of the rotating disc and is slidably connected, and the shaftless hinge built between the long frame and the short frame is respectively rotated by the shaftless hinge The connecting rod of the disc is fixed to the long frame of the inner side of the frame and the wall of the short frame, and the shaftless hinges built between the two short frames are respectively fixed to the outer side of the frame by the connecting rod of the shaftless hinge rotating disc Short border on the wall of the tube.

[Claim 2] The integral folding frame projection screen according to claim 1, wherein the long frame located at the bottom of the frame has a built-in weight.

[Claim 3] The integral folding frame projection screen according to claim 1 or 2, wherein the magnetic strip is a plurality of magnetic blocks arranged in sequence.

[Claim 4] An integral folding frame projection screen comprising a curtain, a reel and a frame, wherein the frame is composed of two long frames, four short frames and six shaftless hinges, a long frame and a short frame. The frames are rectangular tubes, and the two long frames and the four short frames are alternately arranged symmetrically to form a rectangular frame. Six shaftless hinges are respectively built between adjacent frames and fixed; the electromagnets are respectively fixed adjacent to each other. The ends of the two short borders correspond to the shaftless hinges; on the back of the frame The two ends of the long frame are respectively fixed with the support, and at least one reel is placed between the support disposed at both ends of the long frame; the curtain is arranged between the frame and the reel, and the two sides of the curtain are respectively fixed and fixed The reel or the long bezel on the frame is fixed, and the two sets of magnetic strips are respectively placed on the other two sides of the screen, between the short frame of the frame and the curtain, and are fixed; the shaftless hinge includes a body and a rotating disc, and the body is smaller than 180° arc shape, the convex side and the concave side of the body are respectively blocked, and a plurality of chambers are arranged in the body, one end of the Nth chamber is radially blocked, and the other end of the N+1th chamber is radially sealed. The rotating disc is similar in shape to the body, and the convex side of one end is radially disposed with a connecting rod, and the rotating disc is built in the chamber of the body, and the connecting end is located outside the body.

[Claim 5] The integral folding frame projection screen according to claim 4, wherein the rotating disk is provided with an arc-shaped sliding groove, the slider is disposed in the cavity of the body, and the sliding block is placed in the sliding groove of the rotating disk And slide the connection.

[Claim 6] The integral folding frame projection screen according to claim 4, wherein the shaftless hinge built between the long frame and the short frame is respectively fixed to the frame by a connecting rod of the shaftless hinge rotating disk On the inner side of the long bezel and the short bezel wall, the shaftless hinges embedded between the two short bezels are respectively fixed to the pipe walls of the two short frames on the outer side of the frame by the connecting rods of the shaftless hinge rotating disc.

[Claim 7] The integral folding frame projection screen according to any one of claims 4-6

, characterized in that the long bezel located at the bottom of the frame has a built-in weight.

[Claim 8] The integral folding frame projection screen according to any one of claims 4-6

The magnetic strip is a plurality of magnetic blocks arranged in sequence.

[Claim 9] An integral folding frame projection screen comprising a curtain, a reel and a frame, the frame comprising two long bezels, four short bezels and six shaftless hinges, two long bezels and four short frames The frames are alternately arranged symmetrically to form a rectangular frame, and the six shaftless hinges are respectively built between the adjacent frames and fixed; the electromagnets are respectively fixed at the ends of the adjacent two short frames, corresponding to the shaftless hinges; The support is fixed on the back of the frame and the two ends of the long frame, and at least one reel is placed between the support disposed at both ends of the long frame; the curtain is arranged between the frame and the reel, and the two sides of the screen are respectively a reel or a long bezel fixedly attached to the long bezel is fixed, and two sets of magnetic strips are respectively placed on the other two sides of the curtain, between the short frame of the frame and the curtain, and are fixed; The shaftless hinge comprises a body and a rotating disc, the body has an arc shape of less than 180°, the convex side and the concave side of the body are respectively blocked, a plurality of chambers are arranged in the body, and one end of the Nth chamber is radially blocked. The other end of the N+1th chamber is radially blocked. The rotating disc is similar in shape to the body, and the convex side of one end is radially disposed with a connecting rod. The rotating disc is built in the chamber of the body, and the connecting end is located outside the body.

[Claim 10] The integral folding frame projection screen according to claim 9, wherein the rotating disk is provided with an arc-shaped sliding groove, the slider is disposed in the cavity of the body, and the sliding block is placed in the sliding groove of the rotating disk And slide the connection.

[Claim 11] The integral folding frame projection screen according to claim 9, wherein the shaftless hinge built between the long frame and the short frame is respectively fixed to the frame by a connecting rod of the shaftless hinge rotating disk On the inner side of the long bezel and the short bezel wall, the shaftless hinges embedded between the two short bezels are respectively fixed to the pipe walls of the two short frames on the outer side of the frame by the connecting rods of the shaftless hinge rotating disc.

[Claim 12] The integral folding frame projection screen according to any one of claims 9-11, wherein the long frame at the bottom of the frame has a built-in weight.

[Claim 13] The integral folding frame projection screen according to any one of claims 9-11, wherein the magnetic strip is a plurality of magnetic blocks arranged in sequence.