A roller shutter

Abstract

The present invention discloses a rolling curtain, belonging to the field of rolling curtains. It includes a mounting frame, in which a shaft seat is detachably installed. A shaft cylinder is removably sleeved on the shaft seat, and an internal shaft is detachably installed in the shaft seat. For the rolling curtain of the present invention, through the arranged first torque balance member, after the staff pulls the counterweight strip to move downward as a whole, it can drive the external sleeve to rotate as a whole. After the external sleeve rotates, it can drive a plurality of first torque balance members to move, drive the first balance shell and the first balance cover to rotate, and can pull the torsion spring to move, which can effectively prevent the situation that the counterweight strip moves upward when the pulling of the counterweight strip stops. Through the arranged clamping shell and clamping protrusions, the clamping protrusions can be inserted into the clamping shell to quickly realize the assembly of a plurality of first torque balance members, so that the first torque balance member as a whole can adapt to counterweight strips with different gravities when balancing the torque.

Description

Technical Field

[0001] The present invention belongs to the field of rolling curtains, and particularly relates to a rolling curtain. Background Art

[0002] A retractable curtain is driven by a roller tube to roll up and down the entire curtain. The way to adjust the height of the curtain can be divided into a corded type and a cordless type. The cordless 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 cordless curtains generally use an electric rotary drive to move the curtain up or down, or manually push the curtain up or down. Generally, a speed reducer is configured for the rolling curtain motor when it is powered by electricity to reduce the motor speed. However, when a speed reducer is arranged on the rolling curtain motor, it is impossible to manually push the curtain up or down, making it difficult to meet the rapid conversion between electric and manual operations. Therefore, there is an urgent need for improvement.

[0003] The present invention attempts to alleviate or at least mitigate such problems or deficiencies by providing a new or otherwise improved rolling curtain. Summary of the Invention

[0004] In view of one or more of the above-mentioned defects or improvement requirements of the prior art, the present invention provides a rolling curtain, which has the advantages of being able to quickly switch between electric and manual operations and being able to avoid the limitation of the speed reducer so that the electric drive cannot be switched to manual drive.

[0005] To achieve the above object, the present invention provides a rolling curtain, which includes a mounting bracket, in which a shaft seat is detachably installed. A shaft cylinder is removably sleeved on the shaft seat. An inner shaft is detachably installed in the shaft seat. An inner shaft sleeve is arranged at one end of the inner shaft. A first positioning step is provided on the inner shaft sleeve. A lead screw is arranged in the inner shaft sleeve. An outer sleeve is removably sleeved on the shaft seat. An inlay strip is provided in the outer sleeve. A curtain is removably arranged on the outer sleeve. A counterweight strip is removably arranged at the free end of the curtain;

[0006] A ball base, in which an inner ring capable of rotating on the lead screw is provided. Second positioning steps are provided on both side surfaces of the inner ring;

[0007] A plurality of groups of first torque balance members are all detachably installed on the inner shaft;

[0008] A second torque balance member is detachably installed on the inner shaft, and the second torque balance member is located on one side of the first torque balance member;

[0009] 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;

[0010] 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;

[0011] A separation component is detachably arranged on the counting driving component, and the separation component is coaxially arranged with the counting driving component;

[0012] 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.

[0013] As a further improvement of the present invention, the first moment balancing member comprises:

[0014] A first balancing shell has a mounting cavity therein, and a coil spring is detachably arranged in the first balancing shell;

[0015] A first balancing cover, which is detachably mounted on the first balancing shell, and the first balancing cover can cover the coil spring therein;

[0016] 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;

[0017] 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;

[0018] The built-in shaft can pass through the first balancing shell, the coil spring, and the first balancing cover in sequence.

[0019] As a further improvement of the present invention, the second moment balancing member comprises:

[0020] 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;

[0021] A ratchet wheel detachably mounted on the ratchet shaft;

[0022] 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;

[0023] A second balance cover, which is detachably mounted on the second balance housing;

[0024] Wherein, the built-in shaft can sequentially pass through the second balance housing, the ratchet shaft, and the second balance cover.

[0025] As a further improvement of the present invention, the blocking member includes:

[0026] A blocking seat, which is detachably mounted on the lead screw;

[0027] A third positioning step, which is detachably arranged on the blocking seat, and a guiding groove is provided along the top surface and the side surface thereof;

[0028] A non-coplanar embedded block, which is removably arranged in the guiding groove, and a first inclined surface and a second inclined surface are provided on the non-coplanar embedded block, and the first inclined surface and the second inclined surface are non-coplanar;

[0029] A spring groove is further provided on the side surface of the third positioning step, and a built-in spring is detachably arranged in the spring groove;

[0030] A linkage block, on which a linkage insertion rod is detachably arranged, a roller is rotatably arranged on the linkage insertion rod, a displacement plate is also detachably mounted on the linkage block, and side inserts are detachably arranged at both ends of the displacement plate.

[0031] As a further improvement of the present invention, the side insert can penetrate into the spring groove, and the side insert and the built-in spring are mutually hooked, a blocking protrusion is detachably mounted on the displacement plate, and the size of the blocking protrusion is mutually adapted to the size of the displacement plate.

[0032] 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 abuts against the midpoint of the second inclined surface, a friction rubber sleeve is also removably mounted on the roller, and the size of the friction rubber sleeve is mutually adapted to the size of the roller.

[0033] As a further improvement of the present invention, the counting driving member includes:

[0034] A counter, which is detachably mounted on one side surface of the mounting bracket;

[0035] A counting sleeve, which is rotatably arranged on the counter, multiple groups of counting contacts are detachably mounted on the circumferential cross-section circle of the counting sleeve, an insertion cylinder is detachably mounted on the counting sleeve, and a built-in battery is detachably mounted in the insertion cylinder;

[0036] A built-in motor, on the output end of which a speed reducer is detachably installed;

[0037] An outer protection cylinder, which is detachably installed on the counting sleeve, and the outer protection cylinder can cover the insertion cylinder, the built-in motor and the speed reducer therein.

[0038] As a further improvement of the present invention, the separation member includes:

[0039] A separation sleeve, which is detachably installed on the output end of the speed reducer;

[0040] A separation base, inside which a built-in separation shaft is rotatably arranged, and a magnetic attraction piece is provided on the top surface of the separation base;

[0041] Two groups of side supports, both of which are detachably installed on the built-in separation shaft, and the two groups of side supports are mirror-symmetrically distributed about the center of the cross-sectional circle of the built-in separation shaft;

[0042] A toggle rod, which is detachably installed on the magnetic attraction piece, and the toggle rod can be adsorbed by the magnetic attraction piece;

[0043] 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;

[0044] A top seat, which is detachably installed on the bearing sleeve;

[0045] An external combined shell, which can surround the separation sleeve, the separation base and the bearing sleeve therein.

[0046] As a further improvement of the present invention, the caliber size of the arc groove is mutually adapted to the caliber size of the toggle rod, and the plurality of arc grooves are circumferentially arrayed about the center of the cross-sectional circle of the bearing sleeve. Among them, when the built-in separation shaft rotates, it can drive the side support to rotate and then dial the toggle rod into the arc groove. When the toggle rod is dialed into the arc groove, it can make the built-in separation shaft drive the bearing sleeve to rotate.

[0047] As a further improvement of the present invention, an isolation rod is also detachably installed on the top seat, and the caliber size of the isolation rod is mutually adapted to the caliber size of the top seat. An opening is also provided on the outer circumferential surface of the top seat, and the top seat can be penetrated by the embedded strip through the opening so that the top seat is clamped into the external sleeve.

[0048] Generally speaking, compared with the prior art by the above technical solutions conceived by the present invention, the beneficial effects include:

[0049] 1. For the rolling curtain of the present invention, through the arranged first torque balance member, after the staff pulls the counterweight strip down as a whole, it can drive the external sleeve to rotate as a whole. After the external sleeve rotates, it can drive multiple groups of first torque balance members to move, and at the same time can drive the first balance shell and the first balance cover to rotate, and can pull the coil spring to move, which can effectively prevent the counterweight strip from moving up when the pulling of the counterweight strip stops. Through the arranged clamping shell and clamping protrusion, the clamping protrusion can be inserted into the clamping shell to quickly realize the assembly of multiple groups of first torque balance members, so that the first torque balance member as a whole can adapt to counterweight strips of different gravities when balancing the torque;

[0050] 2. Through the arranged second torque balance member, when the second torque balance member is installed forward, during the process of the staff pulling the counterweight strip down, it can drive the external sleeve to rotate as a whole. After the external sleeve rotates, it can drive the ratchet shaft and the ratchet to rotate. Through the restriction of the arc-shaped baffle, it can effectively prevent the counterweight strip from moving down and can balance the downward force again. Friction is generated between the ratchet shaft and the hollow column spring, thereby preventing the external sleeve from descending. When the second torque balance member is installed reversely, during the process of the staff pushing the counterweight strip up, it can drive the external sleeve to rotate as a whole. After the external sleeve rotates, it can drive the ratchet shaft and the ratchet to rotate. Through the restriction of the arc-shaped baffle, it can be blocked again and can balance the upward force again. Friction is generated between the ratchet shaft and the hollow column spring, thereby preventing the external sleeve from ascending. Through the common torque balance of the second torque balance member and the first torque balance member, the balance effect on the counterweight strip can be further enhanced;

[0051] 3. Through the arranged blocking member, after the external sleeve rotates, it can drive the ball base to rotate on the lead screw. When the ball base rotates and the second positioning step abuts against the third positioning step, it can block the second positioning step, and at the same time can abut against the first inclined surface and make the heterogeneous embedded block move down as a whole. After the heterogeneous embedded block moves down, it can drive the second inclined surface to move heterogeneously downward. After the second inclined surface moves heterogeneously downward, it can drive the linkage block to extend laterally, and at the same time can drive the internal spring to be stretched, and at the same time can eject the linkage block. After the linkage block is ejected, the blocking protrusion can be abutted against the inner tube wall of the external sleeve. 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 as to instantaneously stop the external sleeve and prevent it from continuing to move down after moving to a predetermined position, and can also prevent the coil spring from not being able to be recovered when it is pulled to the limit position;

[0052] 4. By arranging rollers and friction rubber sleeves, the surface friction when the linkage block contacts the second inclined plane can be converted into rolling friction, which can further reduce the displacement time of the second inclined plane during instantaneous action, enabling the linkage block and the blocking protrusion to extend quickly, and being able to eject the blocking protrusion in a timely manner, so as to achieve timely and stable positioning of the external sleeve;

[0053] 5. By arranging a counting driving component, when the roller shutter is in the electric state, after turning on the switch of the built-in motor, it can drive the whole separation component to rotate, and at the same time can drive the counting sleeve to rotate. Due to the arrangement of multiple groups of counting contacts, each time the counting contacts rotate and move, they can be detected by the counter, so as to be able to detect in real time how far the outer protective cylinder and the external sleeve have rotated, and real-time counting can be achieved;

[0054] 6. By arranging a separation component, when the roller shutter is in the electric state, when the output end of the reducer rotates, it can drive the built-in separation shaft to rotate at the same time, so as to drive the side support to rotate. After the side support rotates, it can dial the dial rod into the arc groove. At the same time, when the dial rod enters the arc groove, since the side support can touch the dial rod every time it rotates, continuous blocking and restriction can be realized, so as to synchronously drive the built-in separation shaft to drive the whole bearing sleeve to rotate, so as to drive the external sleeve to rotate to make the curtain cloth fall or rise. When the roller shutter is in the manual state, since the side support loses the blocking and dialing of the dial rod, the magnetic attraction piece can adsorb to the dial rod to return to the initial position, so that after the bearing sleeve loses the block, the bearing sleeve can rotate freely along the built-in separation shaft, which can avoid the situation that it cannot be pushed after being decelerated by the reducer when in the manual state, and the roller shutter can freely switch from electric to manual. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 is a schematic structural diagram of the whole roller shutter of the present invention;

[0056] Figure 2 is an exploded view of the roller shutter of the present invention;

[0057] Figure 3 is a schematic structural diagram of the roller shutter of the present invention when the mounting frame, the curtain cloth and the counterweight bar are removed;

[0058] Figure 4 is a schematic structural diagram of the combination of the shaft seat, the first moment balance component, the second moment balance component and the blocking component of the present invention;

[0059] Figure 5 of the present invention Figure 4 exploded view;

[0060] Figure 6Schematic diagram of the overall structure of the first moment balance member of the present invention;

[0061] Figure 7 Schematic diagram of the overall structure of the second moment balance member of the present invention;

[0062] Figure 8 Schematic diagram of the overall structure of the blocking member of the present invention;

[0063] Figure 9 Schematic diagram of the overall structure of the blocking member of the present invention from another perspective;

[0064] Figure 10 Schematic diagram of the counting driving member and the separating member of the present invention when combined with each other;

[0065] Figure 11 Exploded view of the separating member of the present invention;

[0066] Figure 12 Exploded view of the separating member of the present invention from another perspective;

[0067] Figure 13 For the present invention Figure 8 Enlarged view of part A;

[0068] Figure 14 For the present invention Figure 9 Enlarged view of part B.

[0069] 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

[0070] 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.

[0071] 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.

[0072] 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.

[0073] In the embodiment, Figures 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.

[0074] An overall idea on which the present invention is based is that, through the arranged first torque balance member 3, when the staff pulls the overall weight bar 291 downward, the overall external sleeve 27 can be driven to rotate. After the external sleeve 27 rotates, it can drive multiple groups of first torque balance members 3 to move, and at the same time can drive the first balance shell 31 and the first balance cover 33 to rotate, and can pull the coil spring 32 to move, which can effectively prevent the situation that the weight bar 291 moves upward when the pulling of the weight bar 291 stops. Through the arranged clamping shell 34 and clamping protrusion 35, the clamping protrusion 35 can be inserted into the clamping shell 34 to quickly realize the assembly of multiple groups of first torque balance members 3, so that the overall first torque balance member 3 can adapt to the weight bar 291 with different gravities when balancing the torque; through the arranged second torque balance member 4, when the second torque balance member 4 is installed forward, during the process that the staff pulls the weight bar downward, during the process that the staff pulls the weight bar 291 downward, the overall external sleeve 27 can be driven to rotate. After the external sleeve 27 rotates, it can drive the ratchet shaft 43 and the ratchet 44 to rotate, and through the limitation of the arc-shaped baffle 45, the downward movement of the weight bar 291 can be effectively prevented, and the downward force can be balanced again. The ratchet shaft 43 and the hollow column spring generate friction force to prevent the external sleeve 27 from descending. When the second torque balance member 4 is installed reversely, during the process that the staff pushes the weight bar 291 upward, the overall external sleeve 27 can be driven to rotate. After the external sleeve 27 rotates, it can drive the ratchet shaft 43 and the ratchet 44 to rotate, and through the limitation of the arc-shaped baffle 45, it can be blocked again, and the upward force can be balanced again. The ratchet shaft 43 and the hollow column spring generate friction force to prevent the external sleeve 27 from ascending. Through the common torque balance of the second torque balance member 4 and the first torque balance member 3, the balance effect on the weight bar 291 can be further enhanced;Through the arranged blocking member 5, when the external sleeve 27 rotates, it can drive the ball base 24 to rotate on the lead screw 22. When the ball base 24 rotates and the second positioning step 26 abuts against the third positioning step 52, it can block the second positioning step 26, and at the same time can abut against the first inclined surface 54 and cause the whole of the different-plane embedded block 53 to move downward. After the different-plane embedded block 53 moves downward, it can drive the second inclined surface 55 to move downward in a different plane. After the second inclined surface 55 moves downward in a different plane, it can drive the linkage block 57 to protrude laterally, and at the same time can drive the built-in spring 56 to be stretched, and at the same time can eject the linkage block 57. After the linkage block 57 is ejected, the blocking protrusion 593 can be abutted against the inner pipe wall of the external sleeve 27. On the one hand, it can form a primary limit when the second positioning step 26 abuts against the third positioning step 52. On the other hand, it can form a secondary limit when the blocking protrusion 593 is linked and abutted against the inner pipe wall of the external sleeve 27, so as to instantaneously stop the external sleeve 27, prevent the situation of continuing to move downward after moving to the predetermined position, and at the same time prevent the situation that the coil spring 32 cannot be recovered when pulled to the limit position; through the arranged rollers 59 and friction rubber sleeves, 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 enable the linkage block 57 and the blocking protrusion 593 to protrude quickly, and can timely eject the blocking protrusion 593, so as to realize timely and stable positioning of the external sleeve 27; through the arranged counting driving member 6, when the rolling curtain is in the electric state, after the switch of the built-in motor 66 is turned on, it can drive the whole separation member 7 to rotate, and at the same time can drive the counting sleeve 62 to rotate. Since multiple groups of counting contacts 63 are arranged, each time the counting contact 63 rotates and moves, it can be detected by the counter 61, so as to be able to detect in real time how much distance the outer protection cylinder 68 and the external sleeve 27 have rotated, and real-time counting can be realized;Through the arranged separation member 7, when the rolling curtain is in the electric state, when the output end of the speed reducer 67 rotates, it can drive the built-in separation shaft 73 to rotate simultaneously, so as to drive the side support 74 to rotate. After the side support 74 rotates, it can dial the dial rod 75 into the arc groove 77. At the same time, when the dial rod 75 enters the arc groove 77, since the side support 74 can touch the dial rod 75 every time it rotates, continuous blocking and limiting can be realized, so that the built-in separation shaft 73 drives the whole bearing sleeve 76 to rotate synchronously, so as to drive the external sleeve 27 to rotate to make the curtain cloth 29 fall or rise. When the rolling curtain is in the manual state, since the side support 74 loses the blocking and dialing of the dial rod 75, the magnetic sheet can adsorb to the dial rod 75 and return to the initial position. After the bearing sleeve 76 loses the block, the bearing sleeve 76 can rotate freely along the built-in separation shaft 73, which can avoid the situation that it cannot be pushed after being decelerated by the speed reducer 67 when in the manual state, and the rolling curtain can be freely converted from electric to manual.;

[0075] Next, a more specific structure and configuration are given to the first torque balance member 3 as a whole for further explanation. The first torque balance member 3 includes: a first balance shell 31, which has an installation cavity inside, and a torsion spring 32 is detachably arranged in the first balance shell 31; a first balance cover 33, which is detachably installed on the first balance shell 31, and the first balance cover 33 can cover the torsion spring 32 inside it; two sets of clamping shells 34, both of which are detachably installed on the first balance cover 33, and each set of clamping shells 34 has a clamping groove; two sets of clamping protrusions 35, both of which are detachably arranged on the first balance shell 31, and the clamping protrusions 35 can penetrate into the clamping grooves of the clamping shells 34; among them, the built-in shaft 21 can pass through the first balance shell 31, the torsion spring 32, and the first balance cover 33 in sequence;

[0076] Next, the working principle of the first torque balance member 3 as a whole is further explained. When the staff pulls the counterweight strip 291 to move downward as a whole, it can drive the whole external sleeve 27 to rotate. After the external sleeve 27 rotates, it can drive multiple sets of first torque balance members 3 to move, and at the same time can drive the first balance shell 31 and the first balance cover 33 to rotate, and can pull the torsion spring 32 to move, which can effectively prevent the situation that the counterweight strip 291 moves upward when the pulling of the counterweight strip 291 stops. Through the arranged clamping shells 34 and clamping protrusions 35, the clamping protrusions 35 can be inserted into the clamping shells 34 to quickly assemble multiple sets of first torque balance members 3, so that the first torque balance member 3 as a whole can adapt to the counterweight strip 291 with different gravities when balancing the torque.

[0077] Next, a more specific structure and configuration are given to the second moment balance member 4 as a whole for further explanation. The second moment balance member 4 includes: a second balance housing 41, in which a limit ring 42 is detachably installed; a ratchet shaft 43 is rotatably arranged in the limit ring 42; a hollow column spring is detachably installed at 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, all of which are rotatably installed in the limit ring 42, and the three groups of arc-shaped blocking pieces 45 are in contact with the ratchet 44; at both ends of each group of arc-shaped blocking pieces 45, there is an arc-shaped hook section, and the size of the arc-shaped hook section is adapted to the size of the arc-shaped blocking piece 45; a second balance cover 46, which is detachably installed on the second balance housing 41; wherein, the built-in shaft 21 can pass through the second balance housing 41, the ratchet shaft 43, and the second balance cover 46 in sequence;

[0078] Next, the working principle of the second moment balance member 4 as a whole is further explained. When the second moment balance member 4 is installed forward, during the process of the staff pulling the counterweight bar downward, the staff can drive the whole external sleeve 27 to rotate during the process of pulling the counterweight bar 291 downward. When the external sleeve 27 rotates, it can drive the ratchet shaft 43 and the ratchet 44 to rotate. Through the restriction of the arc-shaped blocking pieces 45, the downward movement of the counterweight bar 291 can be effectively prevented, and the downward force can be balanced again. Friction is generated between the ratchet shaft 43 and the hollow column spring, thereby preventing the external sleeve 27 from descending. When the second moment balance member 4 is installed reversely, during the process of the staff pushing the counterweight bar 291 upward, the staff can drive the whole external sleeve 27 to rotate. When the external sleeve 27 rotates, it can drive the ratchet shaft 43 and the ratchet 44 to rotate. Through the restriction of the arc-shaped blocking pieces 45, it can be blocked again, and the upward force can be balanced again. Friction is generated between the ratchet shaft 43 and the hollow column spring, thereby preventing the external sleeve 27 from ascending. Through the common moment balance of the second moment balance member 4 and the first moment balance member 3, the balance effect on the counterweight bar 291 can be further enhanced.

[0079] Next, a more specific structure and configuration are given to the entire blocking member 5 for further explanation. The blocking member 5 includes: a blocking base 51, which is detachably mounted on the lead screw 22; a third positioning step 52, which is detachably arranged on the blocking base 51. The third positioning step 52 is provided with a guiding groove along its top surface and its side surface; a non-coplanar embedded block 53, which is removably arranged in the guiding groove. The non-coplanar embedded block 53 has a first inclined surface 54 and a second inclined surface 55, and the first inclined surface 54 and the second inclined surface 55 are non-coplanar; a spring groove is also opened on the side surface of the third positioning step 52, and an internal spring 56 is detachably arranged in the spring groove; a linkage block 57, on which a linkage insertion rod 58 is detachably arranged. A roller 59 is rotatably arranged on the linkage insertion rod 58. A displacement plate 591 is also detachably mounted on the linkage block 57. Side inserts 592 are detachably arranged at both ends of the displacement plate 591.

[0080] Next, a more specific structure and configuration are given to the entire blocking member 5 for further explanation. The side insert 592 can penetrate into the spring groove, and the side insert 592 and the internal spring 56 are hooked 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.

[0081] Next, the operating principle of the entire blocking member 5 is further explained. When the external sleeve 27 rotates, it can drive the ball base 24 to rotate on the lead screw 22. When the ball base 24 rotates and the second positioning step 26 abuts against the third positioning step 52, it can block the second positioning step 26, and at the same time, it can abut against the first inclined surface 54 and cause the entire non-coplanar embedded block 53 to move downward. When the non-coplanar embedded block 53 moves downward, it can drive the second inclined surface 55 to move non-coplanarly downward. When the second inclined surface 55 moves non-coplanarly downward, it can drive the linkage block 57 to extend laterally, at the same time, it can drive the internal spring 56 to be stretched, and at the same time, it can push out the linkage block 57. When the linkage block 57 is pushed out, the blocking protrusion 593 can be abutted against the inner pipe 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 and abutted against the inner pipe wall of the external sleeve 27, so as to instantaneously stop the external sleeve 27, prevent the situation of continuing to move downward after moving to the predetermined position, and also prevent the situation that the coil spring 32 cannot be recovered when it is pulled to the limit position.

[0082] 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 abuts against the midpoint of the second inclined surface 55, 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;

[0083] By arranging the 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 under instantaneous action, enabling the linkage block 57 and the blocking protrusion 593 to extend quickly, and enabling the blocking protrusion 593 to be ejected in time, so as to achieve timely and stable positioning of the external sleeve 27.

[0084] Next, a more specific structure and configuration of the counting driving member 6 as a whole are given for further explanation. The counting driving member 6 includes: a counter 61, which is removably mounted on one side surface of the mounting frame 1; a counting sleeve 62, which is rotatably arranged on the counter 61, and a plurality of groups of counting contacts 63 are removably mounted on the circumferential cross-section of the counting sleeve 62, an insertion cylinder 64 is removably mounted on the counting sleeve 62, and a built-in battery 65 is removably mounted in the insertion cylinder 64; a built-in motor 66, and a speed reducer 67 is removably mounted on the output end thereof; an outer protection cylinder 68, which is removably mounted on the counting sleeve 62, and the outer protection cylinder 68 can cover the insertion cylinder 64, the built-in motor 66, and the speed reducer 67 therein;

[0085] Next, the operating principle of the counting driving member 6 as a whole is further explained. When the rolling shutter is in the electric state, after the switch of the built-in motor 66 is turned on, it can drive the separation member 7 as a whole to rotate, and at the same time can drive the counting sleeve 62 to rotate. Due to the arrangement of a plurality of groups of counting contacts 63, each time the counting contacts 63 rotate and move, they can be detected by the counter 61, so as to be able to detect in real time how much distance the outer protection cylinder 68 and the external sleeve 27 have rotated, and real-time counting can be achieved.

[0086] Next, a more specific structure and configuration are given to the separation member 7 as a whole for further explanation. The separation member 7 includes: a separation sleeve 71, which is detachably installed on the output end of the speed reducer 67; a separation base 72, inside 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, both of which are detachably installed on the built-in separation shaft 73, and the two sets of side supports 74 are mirror-symmetrically distributed about the center of the cross-sectional circle of the built-in separation shaft 73; a toggle rod 75, which is detachably installed on the magnetic sheet, and the toggle rod 75 can be adsorbed by the magnetic sheet; a 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 an integral body with the bearing sleeve 76, and a plurality of arc grooves 77 are also provided on the inner circumferential surface of the bearing sleeve 76; a top seat 78, which is detachably installed on the bearing sleeve 76; an external combination shell 791, which can enclose the separation sleeve 71, the separation base 72, and the bearing sleeve 76 therein;

[0087] Next, the operating principle of the separation member 7 as a whole is further explained. When the roller blind is in the electric state, when the output end of the speed reducer 67 rotates, it can drive the built-in separation shaft 73 to rotate simultaneously, so as to drive the side supports 74 to rotate. After the side supports 74 rotate, the toggle rod 75 can be pushed into the arc groove 77. At the same time, when the toggle rod 75 enters the arc groove 77, since the side supports 74 can touch the toggle rod 75 every time they rotate, continuous blocking and restriction can be realized, so that the built-in separation shaft 73 drives the bearing sleeve 76 as a whole to rotate, so as to drive the external sleeve 27 to rotate to make the curtain cloth 29 fall or rise. When the roller blind is in the manual state, since the side supports 74 lose the blocking and pushing of the toggle rod 75, the magnetic sheet can adsorb the toggle rod 75 back to the initial position. After the bearing sleeve 76 loses the block, the bearing sleeve 76 can rotate freely along the built-in separation shaft 73, which can avoid the situation that it cannot be pushed after being decelerated by the speed reducer 67 when in the manual state. The roller blind can be freely switched from electric to manual.

[0088] In some embodiments, more specifically, the caliber size of the arc groove 77 is adapted to the caliber size of the toggle rod 75, and the plurality of arc grooves 77 are circumferentially arrayed about the center of the cross-sectional circle of the bearing sleeve 76. Among them, when the built-in separation shaft 73 rotates, it can drive the side supports 74 to rotate and then push the toggle rod 75 into the arc groove 77. 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.

[0089] In some embodiments, more specifically, it is characterized in that an isolation rod 79 is also detachably mounted on the top seat 78, and the caliber size of the isolation rod 79 is adapted to the caliber size of the top seat 78. 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 embedding strip 28 through the notch so that the top seat 78 is snapped into the external sleeve 27.

[0090] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. 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) having an internal ring (25) capable of rotating 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 component (4) which is detachably mounted on the built-in shaft (21), and the second torque balancing component (4) is located on one side of the first torque balancing component (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).

Images