CN114059908B

CN114059908B - Roller shutter convenient to fix and fixing device thereof

Info

Publication number: CN114059908B
Application number: CN202010789389.8A
Authority: CN
Inventors: 王智永
Original assignee: Shenzhen Ruiqing Xingye Plastic Co ltd
Current assignee: Shenzhen Ruiqing Xingye Plastic Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2023-04-18
Anticipated expiration: 2040-08-07
Also published as: CN114059908A

Abstract

The invention discloses a conveniently fixed roller shutter and a fixing device thereof, wherein the roller shutter comprises a sleeve, an axle group arranged at two ends in the sleeve, a fixing device, a pulling and opening and folding device arranged in the middle of the sleeve, two corresponding fixing brackets which are respectively used for the axle group and the fixing device to be connected with each other by a shaft and fixed at two sides above a window, and a curtain sheet which can be folded at the outer edge of the sleeve; the fixing device comprises a shaft shell cover, a pressing buckle penetrating into the shaft shell cover, a spring which is positioned in the pressing buckle and can move back and forth, a spring damping sleeve which is mutually nested with the pressing buckle and can move back and forth in the spring, a damping ring sleeved at the inner bottom end of the spring damping sleeve, and a safety buckle shaft shell which is sleeved with the spring damping sleeve and can enable the shaft shell cover to be sleeved with the buckle, wherein the pressing buckle has a telescopic range through the spring and is used for pressing the pressing buckle to enable the roller shutter to be assembled and fixed by the fixing bracket at the left end or the right end.

Description

Roller shutter convenient to fix and fixing device thereof

Technical Field

The invention relates to a roller shutter, in particular to a roller shutter convenient to fix and a fixing device thereof.

Background

The curtain used for shading or decorating at home and office in a workshop is quite popular, however, for the curtain opening and closing mode, the curtain is opened or closed by using the pull rope, but the curtain is only suitable for a louvered curtain or a curtain opened and closed at the left and right ends, and cannot be suitable for a single curtain. Therefore, a rolling curtain 1 has been developed, and referring to fig. 1 to 3, the rolling curtain 1 has a rail 11, a tube 12 and two fixing brackets 13 respectively installed at two sides of the rail 11, and the folding device 14 is opened and closed by a pulling device 14 installed at the left end of the tube 12, the pulling device 14 has an elastic element 141 and a fixing device 142, when the pulling device is pulled, the curtain fabric 16 is opened clockwise downwards, and then the curtain fabric 16 is folded counterclockwise upwards, however, when the curtain fabric 16 is folded, the curtain fabric is gradually folded by a buffer device 15 installed at the right end of the tube 12. However, the roller blind 1 is found to have the following inconveniences during the assembly process:

since the fixing device 142 has a fixed inelastic range, if the track 11 and the fixing brackets 13 installed on both sides of the track 11 are installed on a desired window, the left end of the tube 12 with the pulling-opening-closing device 14 installed therein with the elastic element 141 and the fixing device 142 or the right end of the tube 12 with the buffering device 15 cannot be fixed on the fixing bracket 13 on one side of the track 11. Therefore, as shown in fig. 2, the rail 11 is fixed above the desired window, one of the fixing brackets 13 is fixed to one side of the rail 11, the elastic element 141, the fixing device 142 and the buffering device 15 of the folding device 14 are assembled to the left and right ends of the tube 12, respectively, and are assembled with the other fixing bracket 13, and the other fixing bracket 13 is fixed to the other side of the rail 11, so that the assembly of the roller blind 1 is troublesome and time consuming, which results in the inconvenience of assembling the entire roller blind 1. This prior art roller blind 1 has the above-mentioned drawbacks.

Therefore, it is an urgent task to develop a roller blind that is easy to assemble and fix.

Disclosure of Invention

The main purpose of the present invention is to solve the drawbacks of the existing roller blind, and to provide a related improvement method, which not only improves the drawbacks of the roller blind that the assembly is troublesome and the time consumption is high, resulting in the inconvenience of the assembly of the whole roller blind. The invention provides a roller shutter convenient to fix and a fixing device thereof, wherein a spring is mainly used for enabling a pressing buckle to have a telescopic range, and the spring is used for pressing the pressing buckle to enable the roller shutter to be assembled and fixed by a fixing bracket at the left end or the right end, so that the roller shutter is more convenient to assemble.

According to the aforesaid objectives, the present invention provides a conveniently fixed roller shutter, comprising a casing, an axis group installed at one end of the casing, a fixing device installed in the casing and far away from one end of the axis group, a pulling and folding device installed between the axis group and the fixing device in the casing, two corresponding fixing brackets for respectively providing a third fixing column at one end of the axis group and connecting with the fixing device by a shaft and fixing on both sides above the window, wherein the fixing brackets respectively comprise a fixing body installed on both sides above the window, a stand body respectively connected below the fixing bodies and respectively having a through hole for the third fixing column and one end of the fixing device to respectively penetrate and position, and a curtain sheet capable of being folded at the outer edge of the casing internally installed with the pulling and folding device; the fixing device comprises a shaft shell cover, a pressing buckle, a spring damping sleeve, a damping ring and a safety buckle shaft shell. The shaft shell cover comprises a convex cover wall with a first opening, a convex connection part which is provided with a second opening communicated with the first opening and extends from one end of the convex cover wall, at least two buckling parts which are connected with the outer periphery of the convex connection part and one end of the convex cover wall and are provided with elastic snap fasteners, and a plurality of first embedded connecting rods which face to the abutting end of the inner edge of the convex connection part and are distributed and arranged between the abutting ends and are respectively provided with a first embedded groove. The pressing buckle comprises a first fixing column which penetrates out of the shaft shell cover and penetrates into the through hole for positioning, one end of the pressing buckle, which is far away from the first fixing column, is extended with a convex rod which is provided with a third opening and internally forms a first accommodating chamber, and a plurality of second embedded rods are distributed and arranged towards the outer periphery of the rear section of the convex rod, second embedded grooves which are used for enabling the first embedded rods to form mutual embedding are formed between the second embedded rods, and one ends of the second embedded rods are respectively abutted against the abutting ends. One end of the spring is abutted against the top end position of the first accommodating chamber and moves back and forth in the first accommodating chamber. The spring damping sleeve comprises an outer sleeve body which faces one end of the press buckle and is provided with a fourth opening and a second accommodating chamber communicated with the fourth opening, the tail end of the second accommodating chamber is accommodated at the other end of the spring, third embedded rods which are mutually embedded with the second embedded grooves are distributed and arranged at the inner periphery of the second accommodating chamber, third embedded grooves which are mutually embedded are formed between the third embedded rods and are respectively formed by the second embedded rods, an abutting convex part which is extended and arranged at one end of the outer sleeve body is far away, and a second fixing column which faces the abutting convex part and is far away from one end of the outer sleeve body. The damping ring is fixedly sleeved on the outer periphery of the abutting convex part and abuts against one end far away from the outer sleeve body and is tightly formed with the inner bottom end of the safety buckle shaft shell. The safety buckle shaft shell comprises a convex blocking part facing one end of the spring damping sleeve and provided with a fifth opening, and an outer shaft sleeve extending away from one end of the convex blocking part, wherein the convex blocking part is inwards provided with a third containing chamber for the convex cover to be sleeved with from the fifth opening, a first abutting end for the convex cover to abut against is formed at the bottom end of the third containing chamber, and a plurality of clamping grooves for the clamping parts to be mutually clamped are respectively distributed towards the first abutting end; the spring makes the press button form a telescopic range which can move back and forth in the second chamber, so that the press button can be pressed to make the rolling curtain assembled and fixed by the fixing bracket at the left or right end.

Furthermore, the first caulking grooves are communicated with the second openings respectively, and the inner diameters of the second openings are larger than that of the first openings.

Furthermore, the first fixed column is a square column body, so that the first fixed column and the front section of the convex rod penetrate through the second opening to the outside of the first opening; wherein, the third fixed column is a square column body; the through holes are matched with the first fixing column and the third fixing column in shape to form square holes.

Furthermore, the end of the second accommodating chamber of the outer casing is provided with a protruding end and a ring groove positioned on the outer periphery of the protruding end, so that the other end of the spring is accommodated in the ring groove and is fixedly sleeved on the outer periphery of the protruding end, and the second fixing column is provided with a second through hole for a fixing piece to penetrate through.

Furthermore, the outer diameter of the outer shaft sleeve is smaller than the outer diameter of the protruding stop part, the inner diameter of the fourth accommodating chamber is smaller than the inner diameter of the third accommodating chamber, and the inner diameter of the second abutting end is smaller than the inner diameter of the fourth accommodating chamber.

Furthermore, a first through hole is arranged on the outer periphery of the front section of the convex rod; wherein, this fixing device still contains a safety bolt, this safety bolt includes one and contracts the elastic part that inserts the back rebound towards this first perforation, for should press to detain and lock in this second appearance room or at this second appearance indoor front and back displacement, one is bent to set for the position and have elastic flexible end towards the top of this elastic part, this flexible end is bent to be established and is the triangle-shaped and penetrates the inslot location at this elastic part top with ending at the end, the triangle-shaped of this flexible end is by the top, the width between the bottom is bigger than the external diameter of this elastic part, and one towards this elastic part end and supply a fixed ring that pull ring worn the solid.

Furthermore, the fixing bodies are respectively provided with a plurality of vertical parts with fixing holes at the horizontal position and the longitudinal position, the vertical frame bodies are respectively provided with a connecting end which is respectively connected with the bottom end of the longitudinal position of the vertical parts and is respectively bent inwards, and a guide end which respectively extends downwards from the lower part of the connecting ends, the two sides of the near lower part of the guide ends are respectively provided with a groove which can be temporarily placed before unlocking when the roller shutter is installed, and the lower parts of the through holes are respectively provided with a guide groove bent outwards so as to respectively guide the first fixing column and the third fixing column into the through holes for positioning by the guide grooves before installation.

Furthermore, the present invention provides a fixing device, which includes a shaft housing cover, a pressing buckle, a spring damping sleeve, a damping ring, and a safety buckle shaft housing. The shaft shell cover comprises a convex cover wall with a first opening, a convex connecting part extending from one end of the convex cover wall and provided with a second opening communicated with the first opening, at least two buckling parts extending from the outer periphery of the convex connecting part and one end of the convex cover wall and provided with elastic snap fasteners, and a plurality of first embedded connecting rods which are arranged towards the abutting ends of the inner edge of the convex connecting part and distributed with the abutting ends and provided with first embedded grooves respectively. The pressing buckle comprises a first fixing column penetrating out of the shaft shell cover, a protruding rod which is provided with a third opening and internally forms a first accommodating chamber is arranged at one end far away from the first fixing column in an extending mode, and a plurality of second embedding rods are distributed and arranged towards the outer periphery of the rear section of the protruding rod, second embedding grooves for enabling the first embedding rods to form mutual embedding are formed among the second embedding rods respectively, and one ends of the second embedding rods are enabled to abut against the abutting ends respectively. One end of the spring is abutted against the top end position of the first accommodating chamber and moves back and forth in the first accommodating chamber. The spring damping sleeve comprises an outer sleeve body facing one end of the pressing buckle and provided with a fourth opening and a second accommodating chamber communicated with the fourth opening, the tail end of the second accommodating chamber is accommodated by the other end of the spring, the pressing buckle forms a telescopic range of front and back displacement in the second accommodating chamber through the spring, third embedded rods which are mutually embedded with the second embedded rods are distributed and arranged on the inner periphery of the second accommodating chamber, third embedded grooves for the second embedded rods to form mutual embedding are formed among the third embedded rods, an abutting convex part extending away from one end of the outer sleeve body, and a second fixing column facing the abutting convex part and away from one end of the outer sleeve body. The damping ring is fixedly sleeved on the outer periphery of the abutting convex part and abuts against one end far away from the outer sleeve body and is tightly formed with the inner bottom end of the safety buckle shaft shell. The safety buckle shaft shell comprises a convex blocking part facing one end of the spring damping sleeve and provided with a fifth opening, and an outer shaft sleeve extending away from one end of the convex blocking part, wherein the convex blocking part is inwards provided with a third accommodating chamber for the convex cover wall to be sleeved, a first abutting end for abutting against the convex cover wall is formed at the bottom end of the third accommodating chamber, and a plurality of clamping grooves for clamping the clamping parts are distributed towards the first abutting end respectively.

Furthermore, the first fixing column is a square column body, so that the first fixing column and the front section of the convex rod penetrate through the second opening to the outside of the first opening.

Furthermore, the end of the second accommodating chamber of the outer casing is provided with a protruding end and a ring groove located on the outer periphery of the protruding end, so that the other end of the spring is accommodated in the ring groove and sleeved and fixed on the outer periphery of the protruding end, and the second fixing column is provided with a second through hole for the fixing piece to penetrate through.

Furthermore, the outer diameter of the outer shaft sleeve is smaller than the outer diameter of the protruding stop part, the inner diameter of the fourth containing chamber is smaller than the inner diameter of the third containing chamber, and the inner diameter of the second abutting end is smaller than the inner diameter of the fourth containing chamber.

Compared with the prior art, the invention has the following characteristics: the rolling curtain of the invention forms a telescopic range of front and back displacement in the second accommodating chamber by the pressing buckle through the spring, and the rolling curtain can be assembled and fixed by the fixing bracket at the left end or the right end by pressing the pressing buckle, thereby achieving convenient assembly.

Drawings

Fig. 1 is an exploded perspective view of a conventional roll screen.

Fig. 2 is an exploded perspective view of the roller blind of fig. 1 prior to assembly.

Fig. 3 is a schematic perspective view of the assembled roller shutter of fig. 1.

Fig. 4 is an exploded perspective view of the roller blind of the present invention.

Fig. 5 is an exploded perspective view of the fixation device of fig. 4.

Fig. 6 is an exploded perspective view of the fixation device of fig. 5 from another angle.

Fig. 7A is an assembled cross-sectional view of the fastening device of fig. 6.

Fig. 7B is an enlarged view of fig. 7A at position 7B and the safety latch is moved outward.

Fig. 8A is a schematic view of fig. 4 with the fixing device configured and the safety latch moved outward.

FIG. 8B is a schematic view of the pressing buckle of the pressing and fixing device of FIG. 8A being inwardly contracted and assembled with the shaft assembly.

FIG. 8C is an enlarged view of the press button of FIG. 8B at the 8C position shown retracted inward.

Fig. 9A is a schematic view of fig. 4 with the shaft set disposed first and the safety pin moved outward.

FIG. 9B is a schematic view of the assembly fixture with the press button of the press fixture of FIG. 9A retracted inward.

Fig. 10 is a front view of the roll screen assembly configuration of the present invention.

Fig. 11 is a schematic view of the curtain sheet of the rolling curtain of the present invention being opened and closed.

Wherein, the reference numbers:

1: the rolling shutter 11: the track 12: pipe body

13: fixing bracket 14: the pulling and retracting device 141: elastic element

142: the fixing device 15: the buffer device 16: curtain cloth

2: the rolling shutter 3: the sleeve 31: hollow pipe

32: the channel 4: axis group 41: third fixing column

5: the fixing device 51: the spindle case cover 511: convex cover wall

512: first opening 513: the convex portion 514: second opening

515: the locking part 516: abutting end 517: first scarf rod

518: first caulking groove 52: pressing the buckle 521: first fixed column

522: the protruding rod 523: third opening 524: the first chamber

525: second embedded link rod 526: second caulking groove 527: first through hole

53: the spring 531: one end 532: the other end of the tube

54: spring damping sleeve 541: outer casing 5411: one end of

542: fourth opening 543: the abutting convex part 544: second fixing column

545: the second chamber 5451: projecting end 5452: ring groove

546: third insert-connect rod 547: third caulking groove 548: second through hole

55: the damping ring 56: the safety buckle shaft housing 561: convex part

562: fifth opening 563: outer bushing 564: the third chamber

565: first abutment end 5651: card slot 566: the fourth containing chamber

567: second abutment end 568: sixth opening 57: safety bolt

571: elastic portion 572: telescopic end 5721: end tip

573: securing ring 574: and (6) a pull ring: folding device

7: fixing bracket 71: the fixing body 711: vertical member

712. 713: fixing hole 72: the stand body 721: connecting end

722: the leading end 723: groove 724: through-hole

725: the guide groove 8: curtain sheet

Detailed Description

The present invention is described in detail and technical content with reference to the accompanying drawings, wherein:

referring to fig. 4 to 8A and 11, a roll screen 2 of the present invention includes a sleeve 3, an axis set 4 installed at one end of the sleeve 3 (the axis set 4 is a known component, which is not described herein), a fixing device 5 installed in the sleeve 3 and away from one end of the axis set 4, a pulling and folding device 6 installed between the axis set 4 and the fixing device 5 in the sleeve 3 (the pulling and folding device 6 is a known component, which is not described herein), two corresponding fixing brackets 7 for respectively connecting the axis set 4 and the fixing device 5 to each other and fixing the two sides of the window, and a curtain sheet 8 capable of being folded at the outer edge of the sleeve 3 with the pulling and folding device 6 installed therein. The sleeve 3 is a hollow tube 31, and a groove 32 is formed on the tube body of the sleeve 3 for fixing one end of the curtain sheet 8.

The fixing device 5 includes a shaft housing cover 51, a pressing buckle 52, a spring 53, a spring damping sleeve 54, a damping ring 55, and a safety buckle shaft housing 56. The shaft cover 51 includes a convex cover wall 511 having a first opening 512, a convex portion 513 extending from one end of the convex cover wall 511 and having a second opening 514 communicating with the first opening 512, at least two buckling portions 515 extending from an outer periphery of the convex portion 513 and one end of the convex cover wall 511 and having elastic buckles, three buckling portions 515 in this embodiment, and a plurality of first embedded connecting rods 517 extending toward an abutting end 516 of an inner edge of the convex portion 513 and disposed in a distributed manner. Wherein a first embedding slot 518 is formed between the first embedding rods 517 and is communicated with the second opening 514. The second opening 514 has a larger inner diameter than the first opening 512.

The pressing buckle 52 includes a first fixing post 521 extending out of the axle housing cover 51, a protruding rod 522 extending from an end of the first fixing post 521 and having a third opening 523, a first accommodating chamber 524 formed in the protruding rod 522 and communicating with the third opening 523, and a plurality of second embedding rods 525 distributed toward the outer periphery of the rear section of the protruding rod 522 and forming mutual nesting with the first embedding slots 518, wherein second embedding slots 526 for forming mutual nesting with the first embedding rods 517 are formed between the second embedding rods 525. The first fixing post 521 is a square column in this embodiment, and a first through hole 527 is disposed on an outer periphery of a front section of the protruding rod 522, the first fixing post 521 and the front section of the protruding rod 522 are inserted into the first opening 512 through the second opening 514, and the second embedding rods 525 are embedded into the first embedding slots 518, so that the second embedding rods 525 are respectively abutted and fixed on the abutting ends 516 on inner edges of the protruding portions 513, and the pressing buckle 52 is prevented from being removed from the outer side of the first opening 512.

One end 531 of the spring 53 abuts against the top end of the first chamber 524 and moves back and forth inside the first chamber 524.

The spring damping sleeve 54 includes an outer casing 541 facing one end of the pressing buckle 52 and having a fourth opening 542, an abutting protrusion 543 extending away from one end 5411 of the outer casing 541, and a second fixing post 544 facing the abutting protrusion 543 and away from one end 5411 of the outer casing 541. The outer casing 541 is provided therein with a second accommodating chamber 545 penetrating the fourth opening 542, a protruding end 5451 and a ring groove 5452 located at an outer periphery of the protruding end 5451 are provided at a terminal of the second accommodating chamber 545, so that the other end 532 of the spring 53 is accommodated in the ring groove 5452 and is fixedly sleeved on an outer periphery of the protruding end 5451, the spring 53 is located inside the first accommodating chamber 524 and the second accommodating chamber 545, the pressing buckle 52 forms a telescopic range of front and rear displacement inside the second accommodating chamber 545 through the spring 53, third embedding rods 546 are distributed on an inner periphery of the second accommodating chamber 545 and are nested with the second embedding rods 526, and third embedding grooves 547 are formed between the third embedding rods 546 and are respectively used for forming the second embedding rods 525 nested with each other. The second fixing post 544 is provided with a second through hole 548 for a fixing member to pass through. The damping ring 55 is fixedly sleeved on the outer periphery of the abutting projection 543 and abuts against one end 5411 far away from the outer casing 541, and forms a seal with the inner bottom end of the safety catch shaft housing 56, so as to control the rotation resistance of the curtain sheet 8 and reduce the noise generated by the rotation friction of the curtain sheet 8.

The safety buckle shaft shell 56 includes a protruding portion 561 facing one end of the spring damping sleeve 54 and having a fifth opening 562, and an outer shaft sleeve 563 extending from one end of the protruding portion 561 and having an outer diameter smaller than that of the protruding portion 561. The protruding blocking portion 561 is provided with a third containing chamber 564 for the protruding cover wall 511 to be sleeved with, inward from the fifth opening 562, a first abutting end 565 formed at the bottom end of the third containing chamber 564 for the protruding cover wall 511 to abut against, and a plurality of slots 5651 for the fastening portions 515 to be fastened with each other are distributed toward the first abutting end 565, and the number of the slots 5651 is three in cooperation with the fastening portions 515. The outer sleeve 563 has a fourth receiving chamber 566 with an inner diameter smaller than the inner diameter of the third receiving chamber 564 formed from the inside of the first abutting end 565, the fourth receiving chamber 566 is communicated with the fifth opening 562 so that the protruding portion 513 is disposed in the fourth receiving chamber 566 and the fastening portions 515 and the fastening slots 5651 are fastened to each other, so that the protruding cover wall 511 is sleeved in the third receiving chamber 564 and forms an abutting connection with the first abutting end 565, a second abutting end 567 with an inner diameter smaller than the inner diameter of the fourth receiving chamber 566 is formed from the end of the fourth receiving chamber 566 so that the damping ring 55 abuts between the second abutting end 567 and the outer casing 541 end 5411 to form a tight state, and a sixth opening 568 with an inner diameter smaller than the second abutting end 567 is extended from the end of the second abutting end 567 so that the protruding portion 543 and the second abutting fixing column 544 are inserted therein, and the sixth opening 568 is communicated with the fourth receiving chamber 566 and the fifth opening 566.

In this embodiment, the fixing device 5 further includes a rigid safety pin 57, the safety pin 57 includes an elastic portion 571 that is retracted and inserted into the first through hole 527 and then rebounds, so that the pressing buckle 52 is locked in the second accommodating chamber 545, so that the pressing buckle 52 does not fall off when the force is not applied to the outside, and the functions of pressing and idle rotation prevention can be further prevented, and when the elastic portion 571 is pulled out from the first through hole 527, the pressing buckle 52 moves back and forth in the second accommodating chamber 545; an elastic expansion end 572 which is bent towards the top end of the elastic part 571, the expansion end 572 is bent into a triangular shape and penetrates into the groove at the top end of the elastic part 571 in a ending way to be positioned at the tail end 5721, and the triangular shape of the expansion end 572 is larger than the outer diameter of the elastic part 571 from the width between the top end and the bottom end so as to prevent the expansion end 572 from jumping off in the operation process; and a fixing ring 573 facing the end of the elastic part 571 and through which a pull ring 574 is fastened, through which pull ring 574 the user can conveniently pull and apply force to increase the operation performance. Furthermore, the safety pin 57 is folded in a line to end manner to prevent the front end of the retractable end 572 and the rear end of the fixing ring 573 from cutting people or articles, which is light, safe and low-cost, so that the safety pin 57 is smaller and cheaper than a common safety pin, and has a great difference in strength from a common safety snap.

Referring to fig. 4 to 6 in combination with fig. 8A to 10, the fixing brackets 7 respectively include a fixing body 71 respectively installed at both sides of the upper portion of the window and a stand body 72 respectively connected to the lower portion of the fixing body 71. The fixing bodies 71 are respectively provided with a plurality of vertical members 711 with fixing

holes

712 and 713 at the horizontal and vertical positions, the vertical frame bodies 72 are respectively provided with a connecting end 721 connected with the bottom end of the vertical position of the vertical members 711 and bent inwards, and a guiding end 722 extending downwards from the lower part of the connecting end 721, the guiding ends 722 are respectively provided with a groove 723 at two sides near the lower part for temporarily placing the roller shutter 2 before unlocking when being installed, a through hole 724 is respectively arranged between the grooves 723, the through holes 724 are respectively provided for the first fixing column 521 and one end of the shaft group 4 and a third fixing column 41 which is a square column to penetrate and be positioned, the through holes 724 are matched with the shapes of the first fixing column 521 and the third fixing column 41 to be square holes, and guiding grooves 725 bent outwards are respectively arranged below the through holes 724 of the guiding ends 722 so that the first fixing column 521 and the third fixing column 41 are positioned from the guiding grooves 725 to the guiding grooves 724 before being installed.

With the above components forming the roller blind 2 of the present invention, referring to fig. 4 to fig. 7A, and referring to fig. 7B and fig. 11, when the components of the roller blind 2 are assembled to the fixing device 5, because the pressing button 52 and the spring damping sleeve 54 use the elastic range of the spring 53, when the roller blind 2 is to be installed above a window, the fixing brackets 7 at the left and right ends are firstly installed, and then the roller blind 2 is assembled in the following two ways, wherein: in a first manner, as shown in fig. 7A to 8C and fig. 10 and 11, when the first fixing post 521 installed at the left end of the casing 3 is guided into the through hole 724 from the guiding groove 725 fixed at the left end to be positioned, and the safety pin 57 is pulled out from the first through hole 527, the telescopic end 572 reduces the width of the triangle through the first through hole 527 to pull out the safety pin 57 entirely, so as to unlock the originally locked pressing buckle 52, then, when the third fixing post 41 installed at the right end of the casing 3 is guided into the through hole 724 to be positioned from the guiding groove 725 fixed at the right end, the first fixing post 521 is pressed to contract the spring 53 installed in the first accommodating chamber 524 and the second accommodating chamber 545, the pressing buckle 52 moves in the second accommodating chamber 545 and toward the abutting convex portion 543, and the pressing buckle 52 forms the second accommodating chamber 545, the third accommodating chamber 41 is released to be pressed toward the abutting joint, the pressing buckle 52 is gradually pushed back to the second accommodating chamber 543 to push the pressing buckle 52 to move away from the second accommodating chamber 527, and the pressing buckle 52 is pushed back to the second accommodating chamber 543 to push the pressing buckle 52 to move to the second opening 527, and the pressing buckle 52 to push the second opening button 52 to push away from the second accommodating chamber 527, thereby gradually, and the pressing buckle 52 to push the second opening button 52 to push the pressing tab to push the second opening button 5 to push the pressing tab to push the second opening 527, thereby preventing the pressing tab from the safety pin 5, and push the safety pin from the safety pin 5. In the second way, as shown in fig. 7A and 7B and fig. 8C to 11, when the third fixing post 41 installed at the right end of the sleeve 3 is guided into the through hole 724 from the guiding slot 725 fixed at the right end to be positioned, and the safety pin 57 is pulled out from the first through hole 527, the telescopic end 572 reduces the width of the triangle through the first through hole 527 so as to pull out the safety pin 57 entirely, and the pressing buckle 52 in the original locking state is unlocked, and then, when the first fixing post 521 installed at the left end of the sleeve 3 is guided into the through hole 724 to be positioned from the guiding slot 725 fixed at the left end, the first fixing post 521 can be pressed and the spring 53 installed in the first accommodating chamber 524 and the second accommodating chamber 545 can be tightened, the pressing buckle 52 moves in the second accommodating chamber 545 and toward the abutting convex portion 543, and the pressing buckle 52 can idle in the second accommodating chamber 545, so that the first fixing post 521 is positioned toward the through hole 724, and then after the originally pressed first fixing post 521 is released, the spring 53 is gradually restored to its original shape by the elastic force of the compressed spring 53, and the pressing buckle 52 is gradually pushed away from the abutting convex portion 543 and gradually restored, so that the second embedded rods 525 are respectively abutted and fixed on the abutting end 516, preventing the pressing buckle 52 from coming out from the outside of the first opening 512, and finally, the safety pin 57 is inserted from the first through hole 527 to form a locked state of the pressing buckle 52, so that the roller blind 2 can be assembled and fixed by the left or right fixing brackets, and the curtain sheet 8 can be pulled and folded.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention as defined by the appended claims be interpreted in accordance with the breadth to which they are fairly, if not explicitly recited herein.

Claims

1. A conveniently fixed roller shutter is characterized in that the roller shutter comprises a sleeve, an axle center group arranged at one end in the sleeve, a fixing device arranged in the sleeve and far away from one end of the axle center group, a pulling and folding device arranged between the axle center group in the sleeve and the fixing device, two fixing brackets which correspond to each other and are respectively used for one end of the axle center group to be provided with a third fixing column, the fixing device to be connected with the axle and fixed at two sides above a window, the fixing brackets respectively comprise a fixing body arranged at two sides above the window, a stand body respectively connected below the fixing bodies and respectively provided with a through hole for the third fixing column and one end of the fixing device to penetrate and be positioned, and a curtain sheet which can be placed at the outer edge of the sleeve internally provided with the pulling and folding device; wherein, this fixing device includes:

a shaft shell cover, which comprises a convex cover wall with a first opening, a convex connection part extending from one end of the convex cover wall and provided with a second opening communicated with the first opening, at least two buckling parts connected with the outer periphery of the convex connection part and one end of the convex cover wall and provided with elastic snap fasteners, and a plurality of first embedded connecting rods facing to the abutting end of the inner edge of the convex connection part and respectively provided with a first embedded groove therebetween in a distributed manner;

the pressing buckle comprises a first fixed column which penetrates out of the shaft shell cover and penetrates into the through hole for positioning, one end of the pressing buckle, which is far away from the first fixed column, is extended with a convex rod which is provided with a third opening and internally forms a first containing chamber, and a plurality of second embedding rods are distributed and arranged towards the outer periphery of the rear section of the convex rod;

one end of the spring is abutted against the top end position of the first accommodating chamber and moves back and forth in the first accommodating chamber;

a spring damping sleeve, which comprises an outer sleeve facing one end of the pressing buckle and provided with a fourth opening and a second accommodating chamber communicated with the fourth opening, the tail end of the second accommodating chamber is used for accommodating the other end of the spring, third embedded rods which are mutually embedded with the second embedded grooves are distributed on the inner periphery of the second accommodating chamber, third embedded grooves for the second embedded rods to be mutually embedded are respectively formed among the third embedded rods, an abutting convex part extending away from one end of the outer sleeve and a second fixed column facing the abutting convex part and away from one end of the outer sleeve;

the damping ring is fixedly sleeved on the outer periphery of the abutting convex part, abuts against one end far away from the outer sleeve body and is tightly formed with the inner bottom end of the safety buckle shaft shell; and

a safety buckle shaft shell, which comprises a convex blocking part facing one end of the spring damping sleeve and provided with a fifth opening, and an outer shaft sleeve extending away from one end of the convex blocking part, wherein the convex blocking part is inwards provided with a third containing chamber for the convex cover to be sleeved with from the fifth opening, a first abutting end for the convex cover to abut against is formed at the bottom end of the third containing chamber, and a plurality of clamping grooves for the clamping parts to be mutually clamped are respectively distributed towards the first abutting end; the spring makes the press button form a telescopic range which can move back and forth in the second chamber, so that the press button can be pressed to make the rolling curtain assembled and fixed by the fixing bracket at the left or right end.

2. The easy-to-fix roller shutter as claimed in claim 1, wherein the first caulking grooves are respectively communicated with the second openings, and the inner diameters of the second openings are larger than the inner diameter of the first openings.

3. The roller shutter with easy-to-fix function as claimed in claim 1, wherein the first fixing post is a square post, such that the first fixing post and the front section of the protruding rod penetrate from the second opening to the outside of the first opening; wherein, the third fixed column is a square column body; the through holes are matched with the first fixing column and the third fixing column in shape to form square holes.

4. The roller blind of claim 1, wherein the second chamber of the outer housing has a protruding end and a ring groove at the outer periphery of the protruding end for receiving the other end of the spring therein and engaging the protruding end, and the second fixing post has a second through hole for passing a fixing member therethrough.

5. The roll screen of claim 1, wherein the outer diameter of the outer sleeve is smaller than the outer diameter of the protruding portion, the inner diameter of the fourth chamber is smaller than the inner diameter of the third chamber, and the inner diameter of the second abutting end is smaller than the inner diameter of the fourth chamber.

6. The easy-to-fix roller shutter as claimed in claim 1, wherein the front section of the protruding rod is provided with a first through hole on its outer periphery; wherein, this fixing device still contains a safety bolt, this safety bolt includes one and contracts the elastic part that inserts the back rebound towards this first perforation, for should press to detain and lock in this second appearance room or at this second appearance indoor front and back displacement, one is bent to set for the position and have elastic flexible end towards the top of this elastic part, this flexible end is bent to be established and is the triangle-shaped and penetrates the inslot location at this elastic part top with ending at the end, the triangle-shaped of this flexible end is by the top, the width between the bottom is bigger than the external diameter of this elastic part, and one towards this elastic part end and supply a fixed ring that pull ring worn the solid.

7. The roll screen of claim 1, wherein the fixing bodies are provided with vertical members having a plurality of fixing holes at horizontal and vertical positions, the vertical members are provided with a connecting end connected to the bottom end of the vertical members and bent inward, and a guiding end extending downward from the lower side of the connecting ends, the guiding ends are recessed with a groove for temporarily placing the roll screen before unlocking when the roll screen is installed, and a guiding groove bent outward is provided below the through holes for guiding the first fixing post and the third fixing post into the through holes before installation.

8. A fixing device, comprising:

the pressing buckle comprises a first fixed column penetrating out of the shaft shell cover, a convex rod which is provided with a third opening and internally forms a first containing chamber is arranged at one end far away from the first fixed column in an extending way, and a plurality of second embedded rods are distributed and arranged towards the outer periphery of the rear section of the convex rod;

a spring damping sleeve, which comprises an outer sleeve facing one end of the pressing buckle and provided with a fourth opening and a second accommodating chamber communicated with the fourth opening, the tail end of the second accommodating chamber is used for accommodating the other end of the spring, and the pressing buckle forms a telescopic range moving back and forth in the second accommodating chamber through the spring, third embedded rods mutually embedded with the second embedded rods are distributed and arranged on the inner periphery of the second accommodating chamber, third embedded grooves for the second embedded rods to form mutual embedding are respectively formed among the third embedded rods, an abutting convex part extending away from one end of the outer sleeve, and a second fixed column facing the abutting convex part and away from one end of the outer sleeve;

a safety buckle shaft shell, which includes a convex block part facing one end of the spring damping sleeve and having a fifth opening, and an outer sleeve extending away from one end of the convex block part, wherein the convex block part is provided with a third chamber inward from the fifth opening for the convex cover to be sleeved, a first abutting end for the convex cover to abut against is formed from the bottom end of the third chamber, and a plurality of clamping grooves for the mutual clamping of the clamping parts are distributed towards the first abutting end respectively, the outer sleeve is provided with a fourth chamber communicated with the fifth opening and provided for the convex part to be arranged, and is sleeved in the third chamber with the convex cover end and in an abutting state with the first abutting end, a second abutting end is formed from the end of the fourth chamber for the damping ring to abut against between the second abutting end and one end of the outer sleeve to form a tight state, and a second abutting end is provided with the second abutting end to abut against the fourth chamber and a sixth opening for the convex part to be communicated with the second opening and the sixth opening.

9. The fixing device as claimed in claim 8, wherein the first slots are respectively communicated with the second openings, and the inner diameters of the second openings are larger than the inner diameters of the first openings.

10. The fixing device as claimed in claim 8, wherein the first fixing post is a square column, such that the first fixing post and the front portion of the protruding rod pass through the second opening to the outside of the first opening.

11. The fixing device as claimed in claim 8, wherein the second chamber end of the outer housing has a protruding end and a ring groove at an outer periphery of the protruding end for receiving the other end of the spring therein and being fixed on the outer periphery of the protruding end, and the second fixing post has a second through hole for passing a fixing member therethrough.

12. The fixing device as claimed in claim 8, wherein an outer diameter of the outer sleeve is smaller than an outer diameter of the protruding portion, an inner diameter of the fourth chamber is smaller than an inner diameter of the third chamber, and an inner diameter of the second abutting end is smaller than an inner diameter of the fourth chamber.

13. The fastening device of claim 8, wherein the front section of the protruding rod is provided with a first through hole on its outer periphery; wherein, this fixing device still contains a safety bolt, this safety bolt includes one and contracts the elastic part that inserts the back rebound towards this first perforation, for should press to detain and lock in this second appearance room or at this second appearance indoor front and back displacement, one is bent to set for the position and have elastic flexible end towards the top of this elastic part, this flexible end is bent to be established and is the triangle-shaped and penetrates the inslot location at this elastic part top with ending at the end, the triangle-shaped of this flexible end is by the top, the width between the bottom is bigger than the external diameter of this elastic part, and one towards this elastic part end and supply a fixed ring that pull ring worn the solid.