Roller shutter

Abstract

The invention discloses a roller shutter, which belongs to the field of roller shutters and comprises a mounting frame, a shaft seat is detachably mounted in the mounting frame, a shaft barrel is detachably sleeved on the shaft seat, and a built-in shaft is detachably mounted in the shaft seat. According to the roller shutter, through the arranged first moment balance components, after a worker pulls a balance weight strip to move downwards as a whole, an external sleeve can be driven to rotate as a whole, after the external sleeve rotates, the multiple sets of first moment balance components can be driven to move, and a first balance shell and a first balance cover can be driven to rotate; a coil spring can be pulled to move, the situation that the counter weight strip moves upwards when pulling of the counter weight strip is stopped can be effectively prevented, the clamping connection shell and the clamping connection protrusion are arranged, the clamping connection protrusion can be inserted into the clamping connection shell, assembling of multiple sets of first moment balance components can be rapidly achieved, and the assembling efficiency is improved. And the first moment balancing component can be integrally adapted to counterweight strips with different gravities during moment balancing.

Description

Technical Field

[0001] The invention belongs to the field of rolling blinds, and in particular relates to a rolling blind. Background Art

[0002] Rolling curtains use a roller tube to drive the entire curtain to roll up and down. The curtain height adjustment methods can be divided into drawstring type and no-drawstring type. The no-drawstring method is to apply an upward or downward force to the bottom of the curtain by hand, so that the curtain can be stretched or folded. Traditional no-drawstring curtains generally use electric rotation to drive the curtain to move up or down, or use manual push to move the curtain up or down. Generally, when the roller curtain is electric, a reducer is configured to reduce the speed of the motor. However, when a reducer is installed on the roller curtain motor, the curtain cannot be pushed up or down manually, which makes it difficult to meet the rapid conversion between electric and manual operation. Improvements are urgently needed.

[0003] The present invention seeks to alleviate or at least mitigate such problems or deficiencies by providing a new or otherwise improved roller blind. Summary of the invention

[0004] In view of one or more of the above defects or improvement needs in the prior art, the present invention provides a rolling shutter having the advantages of being able to quickly switch between electric and manual operation and being able to avoid the limitation of the reducer that prevents the electric drive from being converted to manual drive.

[0005] To achieve the above-mentioned purpose, the present invention provides a rolling blind, which includes a mounting frame, in which a shaft seat is detachably mounted, a shaft cylinder is removably sleeved on the shaft seat, an inner shaft is detachably mounted in the shaft seat, an inner shaft sleeve is arranged on a tail end of the inner shaft, a first positioning step is provided on the inner shaft sleeve, a wire rod is arranged in the inner shaft sleeve, an outer sleeve is removably sleeved on the shaft seat, an inner strip is provided in the outer sleeve, a curtain cloth is removably arranged on the outer sleeve, and a counterweight strip is removably arranged on the free end of the curtain cloth; The ball bearing base has an internal ring that can rotate on the screw rod, and a second positioning step is provided on both sides of the internal ring; A plurality of first torque balancing components are detachably mounted on the built-in shaft; A second torque balancing member is detachably mounted on the built-in shaft, and the second torque balancing member is located on one side of the first torque balancing member; A blocking member is detachably mounted on the screw rod, wherein when the second positioning step moves to the limit position, it can form a conflicting limit position with the blocking member, and when the second positioning step forms a conflicting limit position with the blocking member, the blocking member can be triggered to perform an internal blocking operation on the external sleeve; A counting driving component is detachably mounted on one side of the mounting frame, and the counting driving component is coaxially arranged with the shaft seat; A separation component is detachably arranged on the counting driving component, and the separation component is coaxially arranged with the counting driving component; Among them, the external sleeve can be connected to multiple groups of first torque balancing components, second torque balancing components, ball bases, and separation components in sequence through the embedded strip.

[0006] As a further improvement of the present invention, the first moment balancing member comprises: A first balancing shell has a mounting cavity therein, and a coil spring is detachably arranged in the first balancing shell; A first balancing cover, which is detachably mounted on the first balancing shell, and the first balancing cover can cover the coil spring therein; Two sets of snap-on shells are both detachably mounted on the first balance cover, and each set of the snap-on shells has a snap-on slot; Two sets of clamping protrusions are detachably arranged on the first balancing shell, and the clamping protrusions can be inserted into the clamping slots of the clamping shell; The built-in shaft can pass through the first balancing shell, the coil spring, and the first balancing cover in sequence.

[0007] As a further improvement of the present invention, the second moment balancing member comprises: A second balancing shell has a stop ring detachably mounted therein, a ratchet shaft rotatably arranged in the stop ring, and a hollow column spring detachably mounted on one end of the stop ring; A ratchet wheel detachably mounted on the ratchet shaft; Three groups of arc-shaped blocking pieces are rotatably installed in the limiting ring, and the three groups of arc-shaped blocking pieces are mutually in conflict with the ratchet wheel. Both ends of each group of arc-shaped blocking pieces are provided with an arc-shaped hook section, and the size of the arc-shaped hook section is mutually adapted to the size of the arc-shaped blocking piece; A second balancing cover, which is detachably mounted on the second balancing shell; Wherein, the built-in shaft can pass through the second balancing housing, the ratchet shaft, and the second balancing cover in sequence.

[0008] As a further improvement of the present invention, the blocking member comprises: A blocking seat, which is detachably mounted on the screw rod; A third positioning step is detachably arranged on the blocking seat, and a guide groove is provided along the top surface and the side surface of the third positioning step; An eccentrically embedded block is removably disposed in the guide groove, and has a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface are eccentrically disposed; A spring groove is also provided on the side surface of the third positioning step, and a built-in spring is detachably arranged in the spring groove; The linkage block has a linkage rod detachably arranged thereon, a roller is rotatably arranged on the linkage rod, a displacement plate is detachably mounted on the linkage block, and one side plug is detachably arranged at both ends of the displacement plate.

[0009] As a further improvement of the present invention, the side insert can be inserted into the spring groove, and the side insert and the built-in spring are hooked with each other, and a blocking protrusion is detachably installed on the displacement plate, and the size of the blocking protrusion is adapted to the size of the displacement plate.

[0010] As a further improvement of the present invention, in the initial position, the lowest point of the first inclined surface is flush with the third positioning step, the roller is in conflict with the midpoint of the second inclined surface, and a friction rubber sleeve is removably installed on the roller, and the size of the friction rubber sleeve is matched with the size of the roller.

[0011] As a further improvement of the present invention, the counting driving component comprises: A counter, which is detachably mounted on one side of the mounting frame; A counting sleeve is rotatably arranged on the counter, and a plurality of groups of counting contacts are detachably mounted on the side cross-sectional circle of the counting sleeve. An insert is detachably mounted on the counting sleeve, and a built-in battery is detachably mounted in the insert; A built-in motor has a reducer detachably mounted on its output end; The outer sleeve is detachably mounted on the counting sleeve, and the outer sleeve can cover the insert, the built-in motor and the reducer.

[0012] As a further improvement of the present invention, the separation member comprises: A separation sleeve, which is detachably mounted on the output end of the reducer; A separation base, wherein a built-in separation shaft is rotatably arranged inside the separation base, and a magnetic attraction sheet is provided on the top surface of the separation base; Two sets of side supports are detachably mounted on the built-in separation shaft, and the two sets of side supports are mirror-imaged with respect to the center of the cross-sectional circle of the built-in separation shaft; A toggle lever is detachably mounted on the magnetic sheet, and the toggle lever can be adsorbed by the magnetic sheet; A bearing sleeve, which can be penetrated by the built-in separation shaft, and when the built-in separation shaft penetrates into the bearing sleeve, it can form an integral body with the bearing sleeve, and a plurality of arc grooves are also provided on the inner circumferential surface of the bearing sleeve; A top seat, which is detachably mounted on the bearing sleeve; The external combined shell can enclose the separation sleeve, the separation base and the bearing sleeve therein.

[0013] As a further improvement of the present invention, the caliber of the arc groove is adapted to the caliber of the toggle rod, and a plurality of groups of the arc grooves are distributed in an array around the center of the cross-sectional circle of the bearing sleeve, wherein when the built-in separation shaft rotates, it can drive the side support to rotate and thereby push the toggle rod into the arc groove, and when the toggle rod is pushed into the arc groove, the built-in separation shaft can drive the bearing sleeve to rotate.

[0014] As a further improvement of the present invention, an isolation rod is detachably mounted on the top seat, and the caliber of the isolation rod is matched with the caliber of the top seat. There is also a notch on the outer circumferential surface of the top seat, and the top seat can be penetrated by the inner embedded strip through the notch so that the top seat is inserted into the external sleeve.

[0015] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: 1. The roller blind of the present invention has a first moment balancing component arranged. When the staff pulls the counterweight bar downward as a whole, the external sleeve can be driven to rotate as a whole. When the external sleeve rotates, multiple groups of first moment balancing components can be driven to move, and the first balancing shell and the first balancing cover can be driven to rotate, and the coil spring can be pulled to move, which can effectively prevent the counterweight bar from moving upward when the counterweight bar is stopped from being pulled. The arranged snap-on shell and snap-on protrusion can be inserted into the snap-on shell through the snap-on protrusion to quickly realize the assembly of multiple groups of first moment balancing components, so that the first moment balancing component as a whole can adapt to counterweight bars of different gravity when balancing the moment; 2. By laying out the second moment balancing component, when the second moment balancing component is installed forwardly, the staff can drive the external sleeve to rotate as a whole in the process of pulling the counterweight bar downward, and when the external sleeve rotates, the ratchet shaft and the ratchet wheel can be driven to rotate, and the restriction of the arc-shaped blocking piece can effectively prevent the counterweight bar from moving downward, and the downward force can be balanced again, and the ratchet shaft and the hollow column spring generate friction, thereby preventing the external sleeve from descending, and then when the second moment balancing component is installed in the reverse direction, the staff can push the counterweight bar upward to move upward, and the external sleeve can be driven to rotate as a whole, and when the external sleeve rotates, the ratchet shaft and the ratchet wheel can be driven to rotate, and the restriction of the arc-shaped blocking piece can be blocked again, and the upward force can be balanced again, and the ratchet shaft and the hollow column spring generate friction, thereby preventing the external sleeve from moving upward, and when the common torque of the second moment balancing component and the first moment balancing component is balanced, the balancing effect of the counterweight bar can be further enhanced; 3. Through the arranged blocking component, when the external sleeve rotates, the ball base can be driven to rotate on the screw rod. When the ball base rotates and the second positioning step conflicts with the third positioning step, the second positioning step can be blocked, and at the same time, the first inclined surface can be conflicted to make the eccentric embedded block move downward as a whole. When the eccentric embedded block moves downward, the second inclined surface can be driven to move downward. When the second inclined surface moves downward, the linkage block can be driven to extend sideways, and the built-in spring can be driven to be stretched. At the same time, the linkage block can be pushed out, and when the linkage block is pushed out, the blocking protrusion can abut against the inner tube wall of the external sleeve, so that on the one hand, a primary limit can be formed when the second positioning step abuts against the third positioning step, and on the other hand, a secondary limit can be formed when the blocking protrusion is linked to abut against the inner tube wall of the external sleeve, so that the external sleeve can be stopped instantly, and the situation that the sleeve continues to move downward after moving to a predetermined position can be prevented, and the situation that the coil spring cannot be recovered when it is pulled to the limit position can be prevented at the same time; 4. By laying out the roller and friction rubber sleeve, the surface friction between the linkage block and the second inclined surface can be converted into rolling friction, which can further reduce the displacement time of the second inclined surface during instantaneous action, and enable the linkage block and the blocking protrusion to extend quickly, and the blocking protrusion to be ejected in time, so as to achieve timely and stable positioning of the external sleeve; 5. Through the arranged counting driving component, when the roller shutter is in the electric state, after turning on the switch of the built-in motor, the separation component can be driven to rotate as a whole, and the counting sleeve can be driven to rotate at the same time. Since multiple sets of counting contacts are arranged, each time the counting contacts rotate and move, they can be detected by the counter, so that the outer sleeve and the outer sleeve can be detected in real time, and the rotation distance can be realized in real time. 6. Through the arranged separation components, when the roller shutter is in the electric state, when the output end of the reducer rotates, it can simultaneously drive the built-in separation shaft to rotate, so as to drive the side support to rotate. After the side support rotates, the toggle rod can be pushed into the arc groove. At the same time, after the toggle rod enters the arc groove, since the side support can touch the toggle rod whenever it rotates, continuous blocking restriction can be achieved, so as to synchronously make the built-in separation shaft drive the bearing sleeve to rotate as a whole, so as to drive the external sleeve to rotate so that the curtain falls or rises. When the roller shutter is in the manual state, since the side support loses the blocking effect on the toggle rod, the magnetic suction piece can be adsorbed to the toggle rod to the initial position, so that after the bearing sleeve loses the blocking effect, the bearing sleeve can rotate freely along the built-in separation shaft, so as to avoid the situation that it cannot be pushed due to the deceleration of the reducer when in the manual state. The roller shutter can be freely converted from electric to manual. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the roller blind of the present invention; Figure 2 An exploded view of the roller blind of the present invention; Figure 3 This is a schematic structural diagram of the roller blind of the present invention when the mounting frame, the curtain fabric and the counterweight strip are removed; Figure 4 It is a structural schematic diagram of the shaft seat, the first moment balancing member, the second moment balancing member and the blocking member when they are combined with each other; Figure 5 For the present invention Figure 4 Exploded diagram of Figure 6 It is a schematic diagram of the overall structure of the first moment balancing member of the present invention; Figure 7 It is a schematic diagram of the overall structure of the second moment balancing member of the present invention; Figure 8 It is a schematic diagram of the overall structure of the barrier member of the present invention; Fig. 9 It is a schematic structural diagram of the whole blocking member of the present invention from another angle; Fig.10 It is a schematic diagram of the structure when the counting driving component and the separation component of the present invention are combined with each other; Fig.11 An exploded view of a separation component of the present invention; Fig.12 An exploded view of the separation component of the present invention viewed from another angle; Fig.13 For the present invention Figure 8 A magnified image of point A; Fig.14 For the present invention Fig. 9Enlarged view of point B.

[0017] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. mounting frame; 2. shaft seat; 21. built-in shaft; 211. built-in shaft sleeve; 212. first positioning step; 22. screw rod; 23. shaft cylinder; 24. ball base; 25. built-in ring; 26. second positioning step; 27. external sleeve; 28. embedded strip; 29. ​​curtain; 291. counterweight bar; 3. first moment balancing member; 31. first balancing shell; 32. coil spring; 33. first balancing cover; 34. snap-on shell; 35. snap-on protrusion; 4. second moment balancing member; 41. second balancing shell; 42. limiting ring; 43. ratchet shaft; 44. ratchet; 45. arc-shaped blocking piece; 46. second balancing cover; 5. blocking member ; 51. blocking seat; 52. third positioning step; 53. eccentric embedded block; 54. first inclined plane; 55. second inclined plane; 56. built-in spring; 57. linkage block; 58. linkage plug rod; 59. roller; 591. displacement plate; 592. side plug; 593. blocking protrusion; 6. counting drive component; 61. counter; 62. counting sleeve; 63. counting contact; 64. plug sleeve; 65. built-in battery; 66. built-in motor; 67. reducer; 68. outer casing; 7. separation component; 71. separation sleeve; 72. separation base; 73. built-in separation shaft; 74. side support; 75. toggle rod; 76. bearing sleeve; 77. arc groove; 78. top seat; 79. isolation rod; 791. external combination shell. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0020] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0021] In the embodiment, Figure 1-14A rolling blind is provided, which comprises: a mounting frame 1, in which an axle seat 2 is detachably mounted, a shaft tube 23 is removably sleeved on the axle seat 2, an inner shaft 21 is detachably mounted in the axle seat 2, an inner shaft sleeve 211 is arranged on one tail end of the inner shaft 21, a first positioning step 212 is provided on the inner shaft sleeve 211, a thread rod 22 is arranged in the inner shaft sleeve 211, an outer sleeve 27 is removably sleeved on the axle seat 2, an inner embedded strip 28 is provided in the outer sleeve 27, a curtain cloth 29 is removably arranged on the outer sleeve 27, a counterweight strip 291 is removably arranged on the free end of the curtain cloth 29; a ball base 24, in which an inner ring 25 capable of rotating on the thread rod 22 is provided, and a second positioning step 26 is provided on both sides of the inner ring 25; a plurality of first torque balancing members 3, all of which are detachably mounted on the inner shaft 21; a second torque balancing member 3 A balance member 4 is detachably mounted on the built-in shaft 21, and the second torque balance member 4 is located on one side of the first torque balance member 3; a blocking member 5 is detachably mounted on the screw rod 22, wherein when the second positioning step 26 moves to the extreme position, it can form a conflict limit with the blocking member 5, and when the second positioning step 26 and the blocking member 5 form a conflict limit, it can trigger the blocking member 5 to perform an internal blocking operation on the external sleeve 27; a counting drive member 6 is detachably mounted on one side surface of the mounting frame 1, and the counting drive member 6 is coaxially arranged with the shaft seat 2; a separation member 7 is detachably arranged on the counting drive member 6, and the separation member 7 is coaxially arranged with the counting drive member 6; wherein the external sleeve 27 can be connected to multiple groups of first torque balance members 3, second torque balance members 4, ball bases 24, and separation members 7 in sequence through the embedded strip 28.

[0022] The present invention is based on an overall idea that, through the arrangement of the first torque balancing member 3, when the staff pulls the counterweight bar 291 to move downward as a whole, the external sleeve 27 can be driven to rotate as a whole. When the external sleeve 27 rotates, multiple groups of first torque balancing members 3 can be driven to move, and at the same time, the first balancing shell 31 and the first balancing cover 33 can be driven to rotate, and the coil spring 32 can be pulled to move, which can effectively prevent the counterweight bar 291 from moving upward when the pulling of the counterweight bar 291 is stopped. Through the arrangement of the snap-on shell 34 and the snap-on protrusion 35, the snap-on protrusion 35 can be inserted into the snap-on shell 34 to quickly realize the assembly of multiple groups of first torque balancing members 3, so that the first torque balancing member 3 as a whole can adapt to the counterweight bars 291 of different gravity when balancing the torque; through the arrangement of the second torque balancing member 4, when the second torque balancing member 4 is installed forwardly, when the staff pulls the counterweight bar 291 to move downward, the staff pulls the counterweight bar 291 to move upward. In the process of moving downward, the external sleeve 27 can be driven to rotate as a whole, and when the external sleeve 27 rotates, the ratchet shaft 43 and the ratchet wheel 44 can be driven to rotate, and the restriction of the arc-shaped blocking piece 45 can effectively prevent the counterweight bar 291 from moving downward, and the downward force can be balanced again. The ratchet shaft 43 and the hollow column spring generate friction, thereby preventing the external sleeve 27 from descending. When the second moment balancing member 4 is installed in the reverse direction, the staff pushes the counterweight bar 291 upward to move upward. During the process, the external sleeve 27 can be driven to rotate as a whole, and after the external sleeve 27 rotates, the ratchet shaft 43 and the ratchet 44 can be driven to rotate, and the arc-shaped blocking piece 45 can block the external sleeve 27 again, so that the upward force can be balanced again. The ratchet shaft 43 and the hollow column spring generate friction, thereby preventing the external sleeve 27 from moving upward. When the second moment balancing member 4 and the first moment balancing member 3 have a common moment balance, the balancing effect of the counterweight bar 291 can be further enhanced.By means of the arranged blocking member 5, when the external sleeve 27 rotates, the ball base 24 can be driven to rotate on the screw rod 22. When the ball base 24 rotates and the second positioning step 26 conflicts with the third positioning step 52, the second positioning step 26 can be blocked, and at the same time, the first inclined surface 54 can be conflicted to make the eccentric embedded block 53 move downward as a whole. When the eccentric embedded block 53 moves downward, the second inclined surface 55 can be driven to move downward. When the second inclined surface 55 moves downward, The linkage block 57 is driven to extend sideways, and the built-in spring 56 is driven to be stretched, and the linkage block 57 is pushed out at the same time. After the linkage block 57 is pushed out, the blocking protrusion 593 can be abutted against the inner tube wall of the external sleeve 27. On the one hand, a primary limit can be formed when the second positioning step 26 abuts against the third positioning step 52. On the other hand, a secondary limit can be formed when the blocking protrusion 593 is linked to the inner tube wall of the external sleeve 27, so that the external sleeve 27 can be stopped instantly. The operation can prevent the situation that the rolling spring 32 continues to move down after moving down to the predetermined position, and can also prevent the situation that the coil spring 32 cannot be recovered when it is pulled to the limit position; through the arranged roller 59 and the friction rubber sleeve, the surface friction when the linkage block 57 contacts the second inclined surface 55 can be converted into rolling friction, which can further reduce the displacement time of the second inclined surface 55 during instantaneous action, and can make the linkage block 57 and the blocking protrusion 593 extend quickly, can timely push out the blocking protrusion 593, can realize the timely and stable positioning of the external sleeve 27; through the arranged counting drive component 6, when the roller shutter is in the electric state, after turning on the switch of the built-in motor 66, it can drive the separation component 7 to rotate as a whole, and at the same time can drive the counting sleeve 62 to rotate, because a plurality of sets of counting contacts 63 are arranged, each time the counting contact 63 rotates and moves, it can be detected by the counter 61, so that the outer sleeve 68 and the outer sleeve 27 can be detected in real time. How much distance the external sleeve 27 rotates can be detected, and real-time counting can be realized;By means of the arranged separation member 7, when the roller blind is in the electric state, when the output end of the reducer 67 rotates, the built-in separation shaft 73 can be driven to rotate at the same time, so as to drive the side support 74 to rotate. After the side support 74 rotates, the toggle rod 75 can be toggled into the arc groove 77. At the same time, after the toggle rod 75 enters the arc groove 77, the side support 74 can touch the toggle rod 75 whenever it rotates, so as to achieve continuous blocking and restriction, so as to synchronously make the built-in separation shaft 73 drive the bearing sleeve 76 The whole body rotates to drive the external sleeve 27 to rotate so that the curtain 29 falls or rises. When the rolling curtain is in the manual state, the magnetic sheet can be adsorbed to the toggle rod 75 after the side support 74 loses the blocking of the toggle rod 75 and returns to the initial position, so that the bearing sleeve 76 loses the blocking and can rotate freely along the built-in separation shaft 73. It can avoid the situation that the rolling curtain cannot be pushed after being decelerated by the reducer 67 when in the manual state. The rolling curtain can be freely converted from electric to manual. ;

[0023] Next, a more specific structure and construction is given to the first moment balancing member 3 as a whole for further explanation. The first moment balancing member 3 includes: a first balancing shell 31, which has an installation cavity, and a coil spring 32 is detachably arranged in the first balancing shell 31; a first balancing cover 33, which is detachably installed on the first balancing shell 31, and the first balancing cover 33 can cover the coil spring 32 therein; two groups of snap-on shells 34, which can be detachably installed on the first balancing cover 33, and each group of snap-on shells 34 has a slot; two groups of snap-on protrusions 35, which can be detachably arranged on the first balancing shell 31, and the snap-on protrusions 35 can be inserted into the slots of the snap-on shells 34; wherein the built-in shaft 21 can pass through the first balancing shell 31, the coil spring 32, and the first balancing cover 33 in sequence; Next, the working principle of the first torque balancing member 3 as a whole is further explained. When the staff pulls the counterweight bar 291 downward as a whole, the external sleeve 27 can be driven to rotate as a whole. When the external sleeve 27 rotates, multiple groups of first torque balancing members 3 can be driven to move. At the same time, the first balance shell 31 and the first balance cover 33 can be driven to rotate, and the coil spring 32 can be pulled to move, which can effectively prevent the counterweight bar 291 from moving up when the pulling of the counterweight bar 291 stops. By arranging the snap-on shell 34 and the snap-on protrusion 35, the snap-on protrusion 35 can be inserted into the snap-on shell 34 to quickly realize the assembly of multiple groups of first torque balancing members 3, so that the first torque balancing member 3 as a whole can adapt to the counterweight bars 291 of different gravity when balancing the torque.

[0024] Next, the second moment balancing member 4 is given a more specific structure and construction as a whole for further explanation. The second moment balancing member 4 includes: a second balancing shell 41, in which a limit ring 42 is detachably installed, a ratchet shaft 43 is rotatably arranged in the limit ring 42, and a hollow column spring is detachably installed on one end of the limit ring 42; a ratchet 44, which is detachably installed on the ratchet shaft 43; three groups of arc-shaped blocking pieces 45, which are rotatably installed in the limit ring 42, and the three groups of arc-shaped blocking pieces 45 are mutually in conflict with the ratchet 44, and each group of arc-shaped blocking pieces 45 has an arc-shaped hook section at both ends, and the size of the arc-shaped hook section is mutually adapted to the size of the arc-shaped blocking piece 45; a second balancing cover 46, which is detachably installed on the second balancing shell 41; wherein the built-in shaft 21 can pass through the second balancing shell 41, the ratchet shaft 43, and the second balancing cover 46 in sequence; Next, the overall use principle of the second moment balancing member 4 is further explained. When the second moment balancing member 4 is installed in the forward direction, when the staff pulls the counterweight bar 291 downward, the staff can drive the external sleeve 27 to rotate as a whole. When the external sleeve 27 rotates, the ratchet shaft 43 and the ratchet 44 can be driven to rotate. The restriction of the arc-shaped blocking piece 45 can effectively prevent the counterweight bar 291 from moving downward, and the downward force can be balanced again. The ratchet shaft 43 and the hollow column spring generate friction, thereby preventing the external sleeve 27 from rotating. When the counterweight bar 291 is pushed upward and then installed in reverse, the staff can drive the external sleeve 27 to rotate as a whole during the process of pushing the counterweight bar 291 upward. After the external sleeve 27 rotates, the ratchet shaft 43 and the ratchet 44 can be driven to rotate. The arc-shaped blocking piece 45 can block the counterweight bar 291 again, and the upward force can be balanced again. The ratchet shaft 43 and the hollow column spring generate friction, thereby preventing the external sleeve 27 from moving upward. When the second torque balancing member 4 and the first torque balancing member 3 are used to balance the torque, the balancing effect of the counterweight bar 291 can be further enhanced.

[0025] Next, the blocking member 5 as a whole is given a more specific structure and construction for further explanation. The blocking member 5 includes: a blocking seat 51, which is detachably mounted on the screw rod 22; a third positioning step 52, which is detachably arranged on the blocking seat 51, and the third positioning step 52 is provided with a guide groove along its top surface and its side surface; an eccentric embedded block 53, which is removably arranged in the guide groove, and has a first inclined surface 54 and a second inclined surface 55 on the eccentric embedded block 53, and the first inclined surface 54 and the second inclined surface 55 are arranged on different surfaces; a spring groove is also provided on the side surface of the third positioning step 52, and a built-in spring 56 is detachably arranged in the spring groove; a linkage block 57, on which a linkage plug rod 58 is detachably arranged, and a roller 59 is rotatably arranged on the linkage plug rod 58, and a displacement plate 591 is also detachably mounted on the linkage block 57, and a side plug 592 is detachably arranged at both ends of the displacement plate 591; Next, the blocking member 5 is given a more specific structure and construction as a whole for further explanation. The side insert 592 can be inserted into the spring groove, and the side insert 592 and the built-in spring 56 are connected to each other. A blocking protrusion 593 is detachably mounted on the displacement plate 591, and the size of the blocking protrusion 593 is adapted to the size of the displacement plate 591. Next, the overall use principle of the blocking member 5 is further explained. When the external sleeve 27 rotates, it can drive the ball base 24 to rotate on the screw rod 22. When the ball base 24 rotates and the second positioning step 26 conflicts with the third positioning step 52, it can block the second positioning step 26, and at the same time, it can conflict with the first inclined surface 54 and make the eccentric embedded block 53 move downward as a whole. When the eccentric embedded block 53 moves downward, it can drive the second inclined surface 55 to move downward. When the second inclined surface 55 moves downward, it can drive the linkage block 57 to extend sideways, and at the same time, it can drive The built-in spring 56 is stretched and can push out the linkage block 57 at the same time. After the linkage block 57 is pushed out, the blocking protrusion 593 can be abutted against the inner tube wall of the external sleeve 27. On the one hand, a primary limit can be formed when the second positioning step 26 abuts against the third positioning step 52. On the other hand, a secondary limit can be formed when the blocking protrusion 593 is linked to the inner tube wall of the external sleeve 27, so that the external sleeve 27 can be stopped instantaneously, which can prevent the situation where it continues to move downward after moving to the predetermined position, and can also prevent the coil spring 32 from being unable to be recovered when it is pulled to the extreme position.

[0026] In some embodiments, at the initial position, the lowest point of the first inclined surface 54 is flush with the third positioning step 52, the roller 59 and the midpoint of the second inclined surface 55 are in conflict with each other, and a friction rubber sleeve is removably mounted on the roller 59, and the size of the friction rubber sleeve is adapted to the size of the roller 59; By deploying the roller 59 and the friction rubber sleeve, the surface friction between the linkage block 57 and the second inclined surface 55 can be converted into rolling friction, which can further reduce the displacement time of the second inclined surface 55 during instantaneous action, and enable the linkage block 57 and the blocking protrusion 593 to extend quickly, and the blocking protrusion 593 to be ejected in time, so that the positioning of the external sleeve 27 can be timely and stable.

[0027] Next, the counting drive component 6 as a whole is given a more specific structure and construction for further explanation. The counting drive component 6 includes: a counter 61, which is detachably mounted on one side of the mounting frame 1; a counting sleeve 62, which is rotatably arranged on the counter 61, and a plurality of counting contacts 63 are detachably mounted on the side cross-sectional circle of the counting sleeve 62, an insert sleeve 64 is detachably mounted on the counting sleeve 62, and a built-in battery 65 is detachably mounted in the insert sleeve 64; a built-in motor 66, a reducer 67 is detachably mounted on its output end; an outer sleeve 68, which is detachably mounted on the counting sleeve 62, and the outer sleeve 68 can cover the insert sleeve 64, the built-in motor 66, and the reducer 67 therein; Next, the overall use principle of the counting drive component 6 is further explained. When the roller shutter is in the electric state, after turning on the switch of the built-in motor 66, it can drive the separation component 7 to rotate as a whole, and at the same time can drive the counting sleeve 62 to rotate. Since multiple sets of counting contacts 63 are arranged, each time the counting contacts 63 rotate and move, it can be detected by the counter 61, so that the outer casing 68 and the external sleeve 27 can be detected in real time to achieve real-time counting.

[0028] Next, the separation member 7 is given a more specific structure and construction as a whole for further explanation. The separation member 7 includes: a separation sleeve 71, which is detachably mounted on the output end of the reducer 67; a separation base 72, in which a built-in separation shaft 73 is rotatably arranged, and a magnetic sheet is provided on the top surface of the separation base 72; two sets of side supports 74, which are both detachably mounted on the built-in separation shaft 73, and the two sets of side supports 74 are mirror-displayed about the center of the cross-sectional circle of the built-in separation shaft 73; a toggle rod 75 , which is detachably mounted on the magnetic sheet, and the toggle rod 75 can be attracted by the magnetic sheet; the bearing sleeve 76, which can be penetrated by the built-in separation shaft 73, and when the built-in separation shaft 73 penetrates into the bearing sleeve 76, it can form a whole with the bearing sleeve 76, and a plurality of arc grooves 77 are provided on the inner circumference of the bearing sleeve 76; the top seat 78, which is detachably mounted on the bearing sleeve 76; the external combined shell 791, which can surround the separation sleeve 71, the separation base 72, and the bearing sleeve 76 therein; Next, the overall working principle of the separation member 7 is further explained. When the roller blind is in the electric state, when the output end of the reducer 67 rotates, it can simultaneously drive the built-in separation shaft 73 to rotate, so as to drive the side support 74 to rotate. After the side support 74 rotates, the toggle rod 75 can be dialed into the arc groove 77. At the same time, when the toggle rod 75 enters the arc groove 77, since each time the side support 74 rotates, it can touch the toggle rod 75 to achieve continuous blocking restriction, so as to synchronously make the built-in separation shaft 73 drive The dynamic bearing sleeve 76 rotates as a whole to drive the external sleeve 27 to rotate so that the curtain 29 falls or rises. When the roller blind is in a manual state, the side support 74 loses its obstruction to the toggle rod 75, and the magnetic suction piece can be adsorbed to the toggle rod 75 and return to the initial position, so that after the bearing sleeve 76 loses its obstruction, the bearing sleeve 76 can rotate freely along the built-in separation shaft 73, which can avoid the situation where it cannot be pushed due to the deceleration of the reducer 67 when in a manual state. The roller blind can be freely converted from electric to manual.

[0029] In some embodiments, more specifically, the caliber of the arc groove 77 is adapted to the caliber of the toggle rod 75, and multiple groups of arc grooves 77 are distributed in an array around the center of the cross-sectional circle of the supporting sleeve 76, wherein when the built-in separation shaft 73 rotates, it can drive the side support 74 to rotate and then push the toggle rod 75 into the arc groove 77, and when the toggle rod 75 is pushed into the arc groove 77, the built-in separation shaft 73 can drive the supporting sleeve 76 to rotate.

[0030] In some embodiments, more specifically, it is characterized in that an isolation rod 79 is detachably mounted on the top seat 78, and the caliber of the isolation rod 79 is matched with the caliber of the top seat 78, and there is also a notch on the outer circumferential surface of the top seat 78, and the top seat 78 can be penetrated by the inner embedded strip 28 through the notch, so that the top seat 78 is inserted into the external sleeve 27.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling blind, characterized in that: It includes: A mounting frame (1) is detachably mounted with an axle seat (2), a shaft cylinder (23) is removably sleeved on the axle seat (2), an internal shaft (21) is detachably mounted in the axle seat (2), an internal shaft sleeve (211) is disposed on a rear end of the internal shaft (21), a first positioning step (212) is provided on the internal shaft sleeve (211), a wire rod (22) is disposed in the internal shaft sleeve (211), an external sleeve (27) is removably sleeved on the axle seat (2), an internal embedded strip (28) is provided in the external sleeve (27), a curtain (29) is removably disposed on the external sleeve (27), and a counterweight strip (291) is removably disposed on the free end of the curtain (29); A ball bearing base (24) has an internal ring (25) that can rotate on the screw rod (22), and a second positioning step (26) is provided on both sides of the internal ring (25); A plurality of sets of first torque balancing components (3), all of which are detachably mounted on the built-in shaft (21); A second torque balancing member (4) which is detachably mounted on the built-in shaft (21), and the second torque balancing member (4) is located on one side of the first torque balancing member (3); a blocking member (5) detachably mounted on the screw rod (22), wherein when the second positioning step (26) moves to an extreme position, it can form a contact limit position with the blocking member (5); when the second positioning step (26) forms a contact limit position with the blocking member (5), it can trigger the blocking member (5) to operate so as to perform an internal blocking operation on the external sleeve (27); A counting drive component (6) which is detachably mounted on a side surface of the mounting frame (1), and the counting drive component (6) is coaxially arranged with the shaft seat (2); A separation component (7) which is detachably arranged on the counting drive component (6), and the separation component (7) and the counting drive component (6) are arranged coaxially; The external sleeve (27) can be connected in sequence to a plurality of groups of first moment balancing components (3), second moment balancing components (4), ball bases (24), and separation components (7) via the internal embedded strip (28).

2. The roller blind according to claim 1, characterized in that: The first moment balancing member (3) comprises: A first balancing shell (31) having a mounting cavity therein, and a coil spring (32) is detachably arranged in the first balancing shell (31); A first balancing cover (33) is detachably mounted on the first balancing shell (31), and the first balancing cover (33) is capable of covering the coil spring (32) therein; Two groups of snap-on shells (34) are both detachably mounted on the first balancing cover (33), and each group of the snap-on shells (34) has a snap-on slot; Two groups of clamping protrusions (35) are detachably arranged on the first balancing shell (31), and the clamping protrusions (35) can be inserted into the clamping slots of the clamping shell (34); The built-in shaft (21) can pass through the first balancing shell (31), the coil spring (32), and the first balancing cover (33) in sequence.

3. The roller blind according to claim 1, characterized in that: The second moment balancing member (4) comprises: A second balancing shell (41) has a stop ring (42) detachably mounted therein, a ratchet shaft (43) rotatably arranged in the stop ring (42), and a hollow column spring detachably mounted on one end of the stop ring (42); A ratchet (44) detachably mounted on the ratchet shaft (43); Three groups of arc-shaped blocking pieces (45) are rotatably mounted in the limiting ring (42), and the three groups of arc-shaped blocking pieces (45) are in mutual contact with the ratchet (44), and both ends of each group of arc-shaped blocking pieces (45) are provided with an arc-shaped hook section, and the size of the arc-shaped hook section is mutually adapted to the size of the arc-shaped blocking piece (45); A second balancing cover (46) detachably mounted on the second balancing shell (41); The built-in shaft (21) can pass through the second balancing housing (41), the ratchet shaft (43), and the second balancing cover (46) in sequence.

4. The roller blind according to claim 3, characterized in that: The blocking member (5) comprises: A blocking seat (51) detachably mounted on the screw rod (22); A third positioning step (52) is detachably arranged on the blocking seat (51), and a guide groove is provided along the top surface and the side surface of the third positioning step (52); An eccentrically embedded block (53) is removably arranged in the guide groove, and has a first inclined surface (54) and a second inclined surface (55) on the eccentrically embedded block (53), and the first inclined surface (54) and the second inclined surface (55) are arranged in an eccentric manner; A spring groove is also provided on the side of the third positioning step (52), and a built-in spring (56) is detachably arranged in the spring groove; A linkage block (57) is detachably provided with a linkage insertion rod (58), a roller (59) is rotatably provided on the linkage insertion rod (58), a displacement plate (591) is detachably mounted on the linkage block (57), and side insertions (592) are detachably provided at both ends of the displacement plate (591).

5. The roller blind according to claim 4, characterized in that: The side insert (592) can be inserted into the spring groove, and the side insert (592) and the built-in spring (56) are mutually connected. A blocking protrusion (593) is detachably mounted on the displacement plate (591), and the size of the blocking protrusion (593) is mutually compatible with the size of the displacement plate (591).

6. The roller blind according to claim 4, characterized in that: In the initial position, the lowest point of the first inclined surface (54) and the third positioning step (52) are flush with each other, the roller (59) and the midpoint of the second inclined surface (55) are in contact with each other, and a friction rubber sleeve is removably mounted on the roller (59), and the size of the friction rubber sleeve is adapted to the size of the roller (59).

7. The roller blind according to claim 1, characterized in that: The counting driving component (6) comprises: A counter (61) detachably mounted on a side surface of the mounting frame (1); A counting sleeve (62) is rotatably arranged on the counter (61), a plurality of sets of counting contacts (63) are detachably mounted on the side cross-sectional circle of the counting sleeve (62), an insert sleeve (64) is detachably mounted on the counting sleeve (62), and a built-in battery (65) is detachably mounted in the insert sleeve (64); A built-in motor (66) has a reducer (67) detachably mounted on its output end; An outer protective sleeve (68) is detachably mounted on the counting sleeve (62), and the outer protective sleeve (68) can cover the inserting sleeve (64), the built-in motor (66), and the reducer (67) therein.

8. The roller blind according to claim 7, characterized in that: The separation member (7) comprises: A separation sleeve (71) detachably mounted on the output end of the reducer (67); A separation base (72) having a built-in separation shaft (73) rotatably arranged therein, and a magnetic attraction sheet provided on the top surface of the separation base (72); Two sets of side supports (74) are detachably mounted on the built-in separation shaft (73), and the two sets of side supports (74) are distributed in a mirror image with respect to the center of the cross-sectional circle of the built-in separation shaft (73); A toggle rod (75) is detachably mounted on the magnetic sheet, and the toggle rod (75) can be adsorbed by the magnetic sheet; A bearing sleeve (76) capable of being penetrated by the built-in separation shaft (73), and when the built-in separation shaft (73) is penetrated into the bearing sleeve (76), it can form an integral body with the bearing sleeve (76), and a plurality of groups of arc grooves (77) are further provided on the inner circumferential surface of the bearing sleeve (76); A top seat (78) detachably mounted on the bearing sleeve (76); An external combined shell (791) is capable of enclosing the separation sleeve (71), the separation base (72), and the bearing sleeve (76) therein.

9. The roller blind according to claim 8, characterized in that: The diameter of the arc groove (77) is compatible with the diameter of the toggle rod (75), and a plurality of groups of the arc grooves (77) are arranged in an array around the center of a cross-sectional circle of the bearing sleeve (76), wherein when the built-in separation shaft (73) rotates, the side support (74) can be driven to rotate and the toggle rod (75) can be pushed into the arc groove (77), and when the toggle rod (75) is pushed into the arc groove (77), the built-in separation shaft (73) can drive the bearing sleeve (76) to rotate.

10. The roller blind according to claim 8 or 9, characterized in that: An isolation rod (79) is detachably mounted on the top seat (78), and the diameter of the isolation rod (79) is matched with the diameter of the top seat (78). The outer circumferential surface of the top seat (78) is also provided with a notch, and the top seat (78) can be penetrated by the inner embedded strip (28) through the notch, so that the top seat (78) is inserted into the outer sleeve (27).

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