CN110924840B - Self-opening system for roller shutter - Google Patents

Self-opening system for roller shutter Download PDF

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Publication number
CN110924840B
CN110924840B CN201911383727.1A CN201911383727A CN110924840B CN 110924840 B CN110924840 B CN 110924840B CN 201911383727 A CN201911383727 A CN 201911383727A CN 110924840 B CN110924840 B CN 110924840B
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CN
China
Prior art keywords
rotating shaft
block
fixedly connected
hole
driving
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CN201911383727.1A
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Chinese (zh)
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CN110924840A (en
Inventor
周丹
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Shenzhen Kaipu Junmeng Interior Design Co ltd
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Shenzhen Kaipu Junmeng Interior Design Co ltd
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Priority to CN201911383727.1A priority Critical patent/CN110924840B/en
Publication of CN110924840A publication Critical patent/CN110924840A/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/70—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned outside the roller
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

The invention relates to a self-opening system of a roller shutter, which comprises two mounting frames, two fixing frames, a rotating shaft and a curtain cloth, wherein the fixing frames are provided with a driving mechanism for driving the rotating shaft to rotate and a braking mechanism for braking the rotating shaft; the driving mechanism comprises a driving motor arranged on the fixed frame and a transmission assembly arranged on an output shaft of the driving motor and used for driving the rotating shaft to rotate; the brake mechanism comprises a sleeve fixedly connected to one end of the fixing frame, a brake block connected to the inner cavity of the sleeve in a sliding manner along the radial direction of the rotating shaft, and a first spring fixedly connected to one side, far away from the rotating shaft, of the brake block; one end of the first spring, which is far away from the brake block, is fixedly connected with the inner wall of one end of the sleeve, which is far away from the rotating shaft; a plurality of first slots are sequentially formed in the rotating shaft along the circumferential direction of the rotating shaft, the brake blocks are inserted into the first slots, a first truncated cone-shaped inclined surface is arranged on the inner circumferential surface of each first slot, a second truncated cone-shaped inclined surface is arranged on one side, close to the rotating shaft, of each brake block, and the first inclined surfaces are matched with the second inclined surfaces.

Description

Self-opening system for roller shutter
Technical Field
The invention relates to the technical field of roller shutters, in particular to a self-opening system of a roller shutter.
Background
Compared with the traditional cloth curtain which can be opened and closed left and right, the rolling curtain is named as a rolling curtain, the whole curtain is driven to roll up and down through the rolling pipe, and the rolling curtain is widely applied to the correction type occasions of office places, office buildings, banks and schools and is one of the most common office curtains. According to different operation modes, the curtain can be divided into a bead-pulling type rolling curtain and a spring type rolling curtain.
In the prior art, reference can be made to a Chinese utility model patent with an authorization publication number of CN203302835U, which discloses a curtain, in particular to a rolling curtain, comprising a scroll; the roller shutter is rolled on the scroll; one end of the scroll is provided with a bead chain; two ends of the scroll are rotatably arranged on the fixed seat; the rear side of the fixed seat is fixedly provided with a mounting seat. The installation seat is arranged on the fixed seat, so that the whole curtain can be conveniently installed.
The above prior art solutions have the following drawbacks: the rolling shaft is driven to rotate manually, so that the curtain is inconvenient to retract and release.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a rolling curtain self-opening system, which is convenient for winding and unwinding curtain cloth by arranging a driving mechanism.
The above object of the present invention is achieved by the following technical solutions:
a rolling screen self-opening system comprises two mounting frames, two fixing frames respectively mounted on the two mounting frames, a rotating shaft with two ends respectively rotatably connected to the two fixing frames, and a curtain cloth with one end mounted on the rotating shaft, wherein a driving mechanism for driving the rotating shaft to rotate and a braking mechanism for braking the rotating shaft are mounted on the fixing frames; the driving mechanism comprises a driving motor arranged on the fixed frame and a transmission assembly arranged on an output shaft of the driving motor and used for driving the rotating shaft to rotate; the brake mechanism comprises a sleeve fixedly connected to one end of the fixing frame, a brake block connected to the inner cavity of the sleeve in a sliding manner along the radial direction of the rotating shaft, and a first spring fixedly connected to one side, far away from the rotating shaft, of the brake block; one end of the first spring, which is far away from the brake block, is fixedly connected with the inner wall of one end of the sleeve, which is far away from the rotating shaft; the brake block is characterized in that the rotating shaft is sequentially provided with a plurality of first slots along the circumferential direction of the rotating shaft, the brake block is inserted into the first slots, a first truncated cone-shaped inclined surface is arranged on the inner circumferential surface of each first slot, a second truncated cone-shaped inclined surface is arranged on one side, close to the rotating shaft, of the brake block, and the first inclined surface is matched with the second inclined surface.
By adopting the technical scheme, when the curtain cloth needs to be folded and unfolded, the rotating shaft is driven to rotate by the driving motor and the transmission assembly, so that the curtain cloth can be folded and unfolded; when the rotating shaft rotates, the brake block moves in the direction far away from the first slot under the action of the first inclined surface and the second inclined surface, the brake block moves to compress the first spring, the first spring is in a compressed state at the moment, so that the rotating shaft can rotate conveniently, and after the rotating shaft stops rotating, the brake block is spliced with the first slot under the action of the first spring at the moment, so that the rotating shaft can be braked due to light weight of the curtain cloth; in summary, the driving mechanism is arranged, so that the rotating shaft can be driven to rotate conveniently, and the cord fabric can be retracted and released conveniently.
The present invention in a preferred example may be further configured to: the transmission assembly comprises a main bevel gear and a secondary bevel gear, wherein the main bevel gear is fixedly sleeved on the outer side wall of the rotating shaft, and the secondary bevel gear is meshed with the main bevel gear; the driven bevel gear is sleeved and fixed at one end of the rotating shaft.
By adopting the technical scheme, the driving motor is started, the output shaft of the driving motor drives the main bevel gear to rotate, the main bevel gear drives the auxiliary bevel gear to rotate, and the auxiliary bevel gear drives the rotating shaft to rotate; through setting up transmission assembly, be convenient for drive pivot rotate.
The present invention in a preferred example may be further configured to: the bottom of each fixing frame is provided with a strip-shaped hole, and the inner peripheral surface of each fixing frame is sequentially provided with a plurality of groups of elastic assemblies for abutting against the curtain cloth along the circumferential direction of the rotating shaft.
By adopting the technical scheme, the curtain cloth is convenient to guide by arranging the strip-shaped holes; through setting up elastic component, be convenient for carry out the butt to the curtain cloth of rolling up to can reduce the curtain cloth that is rolled up and take place loose possibility.
The present invention in a preferred example may be further configured to: each group of elastic assemblies comprises a connecting pipe fixedly connected to the inner peripheral surface of the fixing frame, a connecting rod connected to the inner cavity of the connecting pipe in a sliding manner along the radial direction of the rotating shaft, and a second spring fixedly connected to one end, located in the connecting pipe, of the connecting rod; one end of the second spring, which is far away from the connecting rod, is fixedly connected with the inner wall of one end of the connecting pipe, which is far away from the rotating shaft; one end of the connecting rod close to the rotating shaft is rotatably connected with a butting wheel.
By adopting the technical scheme, the abutting wheel can move in a reciprocating manner under the action of the curtain cloth and the second spring, so that the possibility of loosening the rolled curtain cloth can be reduced.
The present invention in a preferred example may be further configured to: two opposite inner sides of the strip-shaped hole are respectively provided with a guide assembly, each guide assembly comprises a mounting groove arranged on one side of the strip-shaped hole, a horizontal shaft rotationally connected to the mounting groove and a plurality of guide rings sequentially sleeved and fixed on the horizontal shaft along the axial direction of the horizontal shaft; a plurality of openings are formed in the two sides of the mounting groove along the axial direction of the horizontal shaft, and the guide ring is arranged corresponding to the openings.
By adopting the technical scheme, when the curtain cloth is folded and unfolded, the curtain cloth can enable the guide ring to rotate, so that the friction between the curtain cloth and the side wall of the strip-shaped hole can be reduced, and the service life of the curtain cloth can be prolonged.
The present invention in a preferred example may be further configured to: the fixed end of the curtain cloth is fixedly connected with an insertion block, a fixing mechanism for fixing the insertion block is mounted on the rotating shaft, and the fixing mechanism comprises a second insertion groove, a first through hole, a sliding block and a driving assembly, wherein the second insertion groove is formed in the outer side wall of the rotating shaft and is used for the insertion of the insertion block, the first through hole is formed in one end of the second insertion groove, the sliding block is connected to the first through hole in a sliding mode along the axial direction of the rotating shaft, and the driving assembly is mounted inside the first through hole; a sinking groove is formed in one end, close to the first through hole, of the inserting block, a rotating block is rotatably connected in the sinking groove, a horizontal rod is fixedly connected to one end, close to the rotating block, of the sliding block, a plurality of spiral blocks are fixedly connected to the horizontal rod, a second through hole is formed in the middle of the rotating block, a plurality of spiral grooves are formed in the second through hole, and the spiral blocks are matched with the spiral grooves in a one-to-one corresponding mode; the fixed subassembly that is used for fixing the turning block is installed to the one end that the inserted block is close to first through-hole.
By adopting the technical scheme, the insertion block is inserted into the second insertion slot by moving the insertion block, then the driving assembly drives the sliding block to move, the sliding block moves to drive the horizontal rod to move, the rotating block rotates under the action of the spiral groove and the spiral block, and then the rotating block is fixed by the fixing assembly, so that the insertion block can be fixed; through setting up fixed establishment, be convenient for make curtain cloth and pivot fixed connection.
The present invention in a preferred example may be further configured to: the driving assembly comprises a fixed block fixedly connected in the first through hole and a screw rod rotatably connected to the fixed block; the screw rod is connected with the sliding block in a threaded manner.
By adopting the technical scheme, when the sliding block needs to be driven to move, the sliding block is enabled to move close to the rotating block by rotating the screw rod, so that the sliding block can move; through setting up drive assembly, be convenient for drive slider and remove.
The present invention in a preferred example may be further configured to: the fixing assembly comprises an arc-shaped groove and an iron block, the arc-shaped groove is formed in one end, close to the first through hole, of the inserting block and is communicated with the sinking groove, and the iron block is fixedly connected to one end of the arc-shaped groove; the turning block comprises a non-magnetic material, a magnet is fixedly connected to the outer side wall of the turning block, the magnet is connected to the arc-shaped groove in a sliding mode along the circumferential direction of the turning block, the magnet and the iron block are located at two ends of the diameter of the turning block respectively, and the magnet can be attracted with the iron block.
By adopting the technical scheme, the rotation of the rotating block drives the magnet to rotate, so that the magnet is attracted with the iron block, and the rotating block can be fixed; through setting up fixed subassembly, be convenient for fix the turning block.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the curtain cloth needs to be folded and unfolded, the rotating shaft is driven to rotate through the driving motor and the transmission assembly, so that the curtain cloth can be folded and unfolded; when the rotating shaft rotates, the brake block moves in the direction far away from the first slot under the action of the first inclined surface and the second inclined surface, the brake block moves to compress the first spring, the first spring is in a compressed state at the moment, so that the rotating shaft can rotate conveniently, and after the rotating shaft stops rotating, the brake block is spliced with the first slot under the action of the first spring at the moment, so that the rotating shaft can be braked due to light weight of the curtain cloth; in conclusion, the driving mechanism is arranged, so that the rotating shaft can be driven to rotate conveniently, and the cord fabric can be retracted and unfolded conveniently;
2. the insertion block is inserted into the second insertion slot by moving the insertion block, then the sliding block is driven to move by the driving assembly, the sliding block moves to drive the horizontal rod to move, at the moment, the rotating block rotates under the action of the spiral groove and the spiral block, and then the rotating block is fixed by the fixing assembly, so that the insertion block can be fixed; the curtain cloth is conveniently and fixedly connected with the rotating shaft by arranging the fixing mechanism;
3. the rotation of the rotating block drives the magnet to rotate, so that the magnet is attracted with the iron block, and the rotating block can be fixed; through setting up fixed subassembly, be convenient for fix the turning block.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a partial cross-sectional view of an embodiment highlighting a first spring;
FIG. 3 is a schematic view showing the structure of the elastic member in the embodiment;
FIG. 4 is a partial cross-sectional view of a highlighted securing mechanism of the embodiment;
fig. 5 is a partial enlarged view of a portion a in fig. 4.
In the figure, 1, a mounting frame; 2. a fixed mount; 21. a strip-shaped hole; 3. a rotating shaft; 31. a first slot; 32. a first inclined plane; 4. a cord fabric; 41. inserting a block; 5. a drive mechanism; 51. a drive motor; 52. a transmission assembly; 521. a main bevel gear; 522. a slave bevel gear; 6. a brake mechanism; 61. a sleeve; 62. a brake pad; 63. a first spring; 64. a second inclined plane; 7. an elastic component; 71. a connecting pipe; 72. a connecting rod; 73. a second spring; 74. a butting wheel; 8. a guide assembly; 81. mounting grooves; 82. a horizontal axis; 83. a guide ring; 84. opening the gap; 9. a fixing mechanism; 91. a second slot; 92. a first through hole; 93. a slider; 94. sinking a groove; 95. rotating the block; 951. a second through hole; 952. a helical groove; 96. a horizontal bar; 961. a screw block; 97. a drive assembly; 971. a fixed block; 972. a screw; 98. a fixing assembly; 981. an arc-shaped slot; 982. an iron block; 983. and a magnet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the self-opening system for roller blinds disclosed by the present invention comprises two mounting frames 1, two fixing frames 2 respectively mounted on the two mounting frames 1, a rotating shaft 3 with two ends respectively rotatably connected to the two fixing frames 2 through bearings, and a curtain cloth 4 with one end mounted on the rotating shaft 3, wherein a driving mechanism 5 for driving the rotating shaft 3 to rotate and a braking mechanism 6 for braking the rotating shaft 3 are mounted on the fixing frames 2.
The driving mechanism 5 comprises a driving motor 51 arranged on the fixed frame 2 and a transmission component 52 arranged on an output shaft of the driving motor 51 and used for driving the rotating shaft 3 to rotate; the driving motor 51 can be controlled by a controller, and the controller can be a single chip microcomputer; the transmission assembly 52 includes a main bevel gear 521 fixed on the outer sidewall of the rotating shaft 3 and a secondary bevel gear 522 engaged with the main bevel gear 521; the slave bevel gear 522 is fixed to one end of the rotary shaft 3. Starting the driving motor 51, wherein an output shaft of the driving motor 51 drives the main bevel gear 521 to rotate, the main bevel gear 521 rotates and drives the auxiliary bevel gear 522 to rotate, and the auxiliary bevel gear 522 rotates and drives the rotating shaft 3 to rotate; the driving mechanism 5 is arranged, so that the rotating shaft 3 can be driven to rotate conveniently.
As shown in fig. 1 and fig. 2, the braking mechanism 6 includes a sleeve 61 fixed at one end of the fixed frame 2, a brake block 62 slidably connected to an inner cavity of the sleeve 61 along a radial direction of the rotating shaft 3, and a first spring 63 fixed at one side of the brake block 62 away from the rotating shaft 3; one end of the first spring 63 far away from the brake block 62 is fixedly connected with the inner wall of one end of the sleeve 61 far away from the rotating shaft 3; the rotating shaft 3 is sequentially provided with a plurality of first slots 31 along the circumferential direction, the brake block 62 is inserted into the first slots 31, the inner circumferential surface of each first slot 31 is provided with a first truncated cone-shaped inclined surface 32, one side of the brake block 62 close to the rotating shaft 3 is provided with a second truncated cone-shaped inclined surface 64, and the first inclined surface 32 is matched with the second inclined surface 64. When the rotating shaft 3 rotates, the brake block 62 moves in a direction away from the first slot 31 under the action of the first inclined surface 32 and the second inclined surface 64, the brake block 62 moves to compress the first spring 63, and the first spring 63 is in a compressed state, so that the rotating shaft 3 can rotate conveniently; in summary, the braking mechanism 6 is provided to facilitate braking of the rotating shaft 3.
As shown in fig. 3, a strip-shaped hole 21 is formed at the bottom of each fixing frame 2, and the curtain cloth 4 is conveniently guided by the strip-shaped holes 21. A plurality of groups of elastic components 7 for abutting against the curtain cloth 4 are sequentially arranged on the inner peripheral surface of the fixed frame 2 along the circumferential direction of the rotating shaft 3; each group of elastic assemblies 7 comprises a connecting pipe 71 fixedly connected with the inner peripheral surface of the fixed frame 2, a connecting rod 72 connected with the inner cavity of the connecting pipe 71 in a sliding manner along the radial direction of the rotating shaft 3, and a second spring 73 fixedly connected with one end of the connecting rod 72 positioned in the connecting pipe 71; one end of the second spring 73 far away from the connecting rod 72 is fixedly connected to the inner wall of one end of the connecting pipe 71 far away from the rotating shaft 3; one end of the connecting rod 72 close to the rotating shaft 3 is rotatably connected with a butting wheel 74; under the action of the curtain cloth 4 and the second spring 73, the abutting wheel 74 can reciprocate, so that the possibility of loosening the rolled curtain cloth 4 can be reduced.
The two opposite inner sides of the strip-shaped hole 21 are respectively provided with a guide assembly 8, each group of guide assemblies 8 comprises a mounting groove 81 arranged on one side of the strip-shaped hole 21, a horizontal shaft 82 rotatably connected to the mounting groove 81 and a plurality of guide rings 83 sequentially sleeved and fixed on the horizontal shaft 82 along the axial direction of the horizontal shaft 82; a plurality of notches 84 are formed in both sides of the mounting groove 81 along the axial direction of the horizontal shaft 82, and the guide ring 83 is disposed corresponding to the notches 84. When the curtain cloth 4 is stored, the curtain cloth 4 can rotate the guide ring 83, so that the friction between the curtain cloth 4 and the side wall of the strip-shaped hole 21 can be reduced, and the service life of the curtain cloth 4 can be prolonged.
As shown in fig. 1 and 4, an insert block 41 is fixedly connected to a fixed end of the curtain fabric 4, a fixing mechanism 9 for fixing the insert block 41 is mounted on the rotating shaft 3, and the fixing mechanism 9 includes a second slot 91 opened on an outer side wall of the rotating shaft 3 and used for inserting the insert block 41, and two first through holes 92 respectively opened at two ends of the second slot 91; a sliding block 93 is connected in each first through hole 92 in a sliding manner along the axial direction of the rotating shaft 3, and a driving assembly 97 for driving the sliding block 93 to move is installed in each first through hole 92; as shown in fig. 5, a sinking groove 94 is formed in one end of the insertion block 41 close to the first through hole 92, a rotation block 95 is rotatably connected in the sinking groove 94 through a bearing, a horizontal rod 96 is fixedly connected to one end of the sliding block 93 close to the rotation block 95, a plurality of spiral blocks 961 are fixedly connected to the horizontal rod 96, a second through hole 951 is formed in the middle of the rotation block 95, a plurality of spiral grooves 952 are formed in the second through hole 951, and the spiral blocks 961 are in one-to-one corresponding fit with the spiral grooves 952; a fixing assembly 98 for fixing the rotating block 95 is installed at one end of the insert block 41 near the first through hole 92. The insertion block 41 is inserted into the second insertion groove 91 by moving the insertion block 41, then the driving assembly 97 drives the sliding block 93 to move, the sliding block 93 moves to drive the horizontal rod 96 to move, at the moment, the rotating block 95 rotates under the action of the spiral groove 952 and the spiral block 961, and then the fixing assembly 98 is used for fixing the rotating block 95, so that the insertion block 41 can be fixed; the curtain cloth 4 is fixedly connected with the rotating shaft 3 conveniently by arranging the fixing mechanism 9.
As shown in fig. 4 and 5, the driving assembly 97 includes a fixed block 971 fixedly connected in the first through hole 92, and a screw 972 rotatably connected to the fixed block 971 through a bearing; the screw 972 is threadedly connected to the slider 93. When the slide block 93 needs to be driven to move, the screw 972 is rotated to enable the slide block 93 to move close to the rotating block 95, so that the slide block 93 can move; the driving assembly 97 is arranged to facilitate the driving of the sliding block 93.
The fixing component 98 comprises an arc-shaped groove 981 which is arranged at one end of the inserting block 41 close to the first through hole 92 and is communicated with the sinking groove 94, and an iron block 982 which is fixedly connected at one end of the arc-shaped groove 981; the rotating block 95 is made of a non-magnetic material, a magnet 983 is fixedly connected to the outer side wall of the rotating block 95, the magnet 983 is connected to the arc-shaped groove 981 in a sliding mode along the circumferential direction of the rotating block 95, the magnet 983 and the iron block 982 are located at two ends of the diameter of the rotating block 95 respectively, and the magnet 983 can be attracted to the iron block 982. The rotation of the rotating block 95 drives the magnet 983 to rotate, so that the magnet 983 is attracted with the iron block 982, and the rotating block 95 can be fixed; by providing the fixing member 98, the turning block 95 is easily fixed.
The implementation principle of the embodiment is as follows:
the driving motor 51 is started, an output shaft of the driving motor 51 drives the main bevel gear 521 to rotate, the main bevel gear 521 drives the auxiliary bevel gear 522 to rotate in a rotating mode, the auxiliary bevel gear 522 drives the rotating shaft 3 to rotate, and the curtain cloth 4 can be collected and released by rotating the rotating shaft 3; when the rotating shaft 3 rotates, the brake block 62 moves in the direction away from the first slot 31 under the action of the first inclined surface 32 and the second inclined surface 64, the brake block 62 moves to compress the first spring 63, the first spring 63 is in a compressed state at the moment, so that the rotating shaft 3 can rotate conveniently, after the rotating shaft 3 stops rotating, the brake block 62 is spliced with the first slot 31 under the action of the first spring 63, and the curtain cloth 4 is light in weight, so that the rotating shaft 3 can be braked.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (3)

1. The utility model provides a roll up curtain from system of opening, includes two mounting bracket (1), installs respectively in two mount (2) of two mounting bracket (1), both ends rotate respectively to connect and install in curtain cloth (4) of pivot (3) in pivot (2) and one end, its characterized in that: the fixed frame (2) is provided with a driving mechanism (5) for driving the rotating shaft (3) to rotate and a braking mechanism (6) for braking the rotating shaft (3);
the driving mechanism (5) comprises a driving motor (51) arranged on the fixed frame (2) and a transmission assembly (52) arranged on an output shaft of the driving motor (51) and used for driving the rotating shaft (3) to rotate;
the brake mechanism (6) comprises a sleeve (61) fixedly connected to one end of the fixed frame (2), a brake block (62) connected to the inner cavity of the sleeve (61) in a sliding manner along the radial direction of the rotating shaft (3), and a first spring (63) fixedly connected to one side, far away from the rotating shaft (3), of the brake block (62); one end of the first spring (63) far away from the brake block (62) is fixedly connected to the inner wall of one end of the sleeve (61) far away from the rotating shaft (3); the rotating shaft (3) is sequentially provided with a plurality of first slots (31) along the circumferential direction of the rotating shaft, the brake block (62) is inserted into the first slots (31), the inner circumferential surface of each first slot (31) is provided with a first truncated cone-shaped inclined surface (32), one side, close to the rotating shaft (3), of the brake block (62) is provided with a second truncated cone-shaped inclined surface (64), and the first inclined surface (32) is matched with the second inclined surface (64);
the transmission assembly (52) comprises a main bevel gear (521) fixed on the outer side wall of the rotating shaft (3) in a sleeved mode and a secondary bevel gear (522) meshed with the main bevel gear (521); the secondary bevel gear (522) is sleeved and fixed at one end of the rotating shaft (3);
the bottom of each fixing frame (2) is provided with a strip-shaped hole (21), and the inner circumferential surface of each fixing frame (2) is sequentially provided with a plurality of groups of elastic components (7) for abutting against the curtain cloth (4) along the circumferential direction of the rotating shaft (3);
each group of elastic assemblies (7) comprises a connecting pipe (71) fixedly connected to the inner peripheral surface of the fixed frame (2), a connecting rod (72) connected to the inner cavity of the connecting pipe (71) in a sliding manner along the radial direction of the rotating shaft (3), and a second spring (73) fixedly connected to one end, located inside the connecting pipe (71), of the connecting rod (72); one end of the second spring (73) far away from the connecting rod (72) is fixedly connected to the inner wall of one end of the connecting pipe (71) far away from the rotating shaft (3); one end of the connecting rod (72) close to the rotating shaft (3) is rotatably connected with a butting wheel (74);
the two opposite inner sides of the strip-shaped hole (21) are respectively provided with a guide assembly (8), each group of guide assemblies (8) comprises a mounting groove (81) arranged on one side of the strip-shaped hole (21), a horizontal shaft (82) rotatably connected to the mounting groove (81) and a plurality of guide rings (83) sequentially sleeved and fixed on the horizontal shaft (82) along the axial direction of the horizontal shaft (82); a plurality of gaps (84) are formed in the two sides of the mounting groove (81) along the axial direction of the horizontal shaft (82), and the guide ring (83) is arranged corresponding to the gaps (84);
the fixed end of the curtain cloth (4) is fixedly connected with an inserting block (41), a fixing mechanism (9) for fixing the inserting block (41) is installed on the rotating shaft (3), the fixing mechanism (9) comprises a second inserting groove (91) which is formed in the outer side wall of the rotating shaft (3) and used for inserting the inserting block (41), a first through hole (92) which is formed in one end of the second inserting groove (91), a sliding block (93) which is connected to the first through hole (92) in a sliding mode along the axial direction of the rotating shaft (3), and a driving assembly (97) which is installed inside the first through hole (92) and used for driving the sliding block (93) to move; one end, close to the first through hole (92), of the inserting block (41) is provided with a sinking groove (94), the sinking groove (94) is connected with a rotating block (95) in a rotating mode, one end, close to the rotating block (95), of the sliding block (93) is fixedly connected with a horizontal rod (96), the horizontal rod (96) is fixedly connected with a plurality of spiral blocks (961), the middle of the rotating block (95) is provided with a second through hole (951), a plurality of spiral grooves (952) are formed in the second through hole (951), and the spiral blocks (961) are matched with the spiral grooves (952) in a one-to-one correspondence mode; and a fixing component (98) for fixing the rotating block (95) is arranged at one end of the inserting block (41) close to the first through hole (92).
2. A roller shutter self-opening system according to claim 1, characterized in that: the driving component (97) comprises a fixed block (971) fixedly connected in the first through hole (92) and a screw rod (972) rotatably connected with the fixed block (971); the screw (972) is in threaded connection with the slider (93).
3. A roller shutter self-opening system according to claim 2, wherein: the fixing component (98) comprises an arc-shaped groove (981) which is arranged at one end of the inserting block (41) close to the first through hole (92) and is communicated with the sinking groove (94) and an iron block (982) which is fixedly connected to one end of the arc-shaped groove (981); the turning block (95) comprises non-magnetic material, the lateral wall rigid coupling of turning block (95) has magnet (983), magnet (983) slide along the circumference of turning block (95) and connect in arc wall (981), magnet (983) and iron plate (982) are in the both ends of a turning block (95) diameter respectively, magnet (983) can with iron plate (982) actuation.
CN201911383727.1A 2019-12-28 2019-12-28 Self-opening system for roller shutter Active CN110924840B (en)

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CN117386762B (en) * 2023-12-12 2024-04-02 江苏泰之星减速机有限公司 F-series parallel shaft helical gear reducer with locking function

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