Pull rod type curtain operating mechanism and curtain applying same

Abstract

The utility model discloses a pull rod type curtain operating mechanism and a curtain applying the same, the pull rod type curtain operating mechanism comprises a driving connecting piece, a base, a control pull rod, a lifting mechanism, an unlocking mechanism and an actuating mechanism, the control pull rod comprises a fixed rod body, an unlocking rod body and a lifting operating piece, the lifting mechanism comprises an annular rope wheel, a rewinding unit and a driven part, and when the lifting operation part extends out relative to the unlocking rod body, the annular rope wheel and the driven part are driven to synchronously rotate forwards to drive the actuating mechanism to transmit a torsion to the rolling strip so as to wind the shielding material; when the unlocking rod body extends out relative to the fixed rod body, the driven piece drives the driving shaft of the actuating mechanism to rotate reversely, so that the meshing relation between the swing pawl of the actuating mechanism and the driving connecting piece is relieved, at the moment, the driving connecting piece and the rolling bar bear the weight of the shielding material and idle relative to the driving shaft, and the shielding material is released from the rolling bar.

Description

Technical Field

[0001] The utility model relates to a pull-rod curtain operating mechanism and a curtain used therefor, and in particular to a pull-rod curtain operating mechanism which is small in size, can withstand large torque, can reduce appearance design restrictions and can be used for curtains with larger widths, and the curtain used therefor. Background Art

[0002] Curtains are commonly used in building openings, such as windows or doors, to adjust light levels or provide privacy. Common curtains that adjust the shade area vertically can be categorized by their operation method: those with and without exposed cords. Curtains with exposed cords use a looping, circular control cord to control their expansion and contraction. The user pulls down on either side of the cord to raise or lower the shade area. However, children can slip their heads through the looped cord, causing it to wrap around their necks and cause accidents.

[0003] To improve safety, there is currently a type of Venetian blind without an exposed operating cord. The user can control the opening and closing of the curtain by operating an operating tube and a pull member below the operating tube. When the curtain is in the closed state, the user pulls the operating tube to expand the curtain downward, and then repeatedly pulls the pull member to close the curtain upward. However, the mechanism in the upper beam of this type of Venetian blind is relatively large, which limits the overall design of the curtain. In addition, its brake only uses a brake spring to press the hollow sleeve to lock the hollow sleeve so that it rotates without being pulled by the weight of the blades. The torque it can withstand is limited, and therefore it is not suitable for curtains with a large width and a heavy shading area. In view of this, there is a need on the market for a pull-rod curtain with a thinner operating mechanism, a smaller size, and the ability to withstand greater torque, while having fewer restrictions on the width of the curtain. Utility Model Content

[0004] In view of the above-mentioned existing problems, the present invention aims to provide a pull-rod curtain operating mechanism and a curtain used therewith. The pull-rod curtain operating mechanism can withstand high torque in a compact size, thereby minimizing restrictions on the overall curtain design and enabling application to curtains of greater width. Due to the pull-rod curtain operating mechanism, the curtain has fewer restrictions on design and width selection.

[0005] According to the purpose of the present invention, a pull rod type curtain operating mechanism and a curtain used therein are provided, wherein the curtain has a rolling bar and a shielding material, one end of the shielding material being connected to the rolling bar, and the pull rod type curtain operating mechanism comprises: a driving connector, a base, a control pull rod, a lifting mechanism, an unlocking mechanism and an actuating mechanism. The driving connector is fixedly connected to one end of the rolling bar. When the driving connector rotates, the rolling bar can rotate together with the driving connector. The inner wall surface of the driving connector has at least one first abutting portion in the form of a protrusion. The base is arranged corresponding to the end of the rolling bar connected to the driving connector. The control pull rod is arranged below the base and comprises a fixed rod body, an unlocking rod body and a lifting operating member. The fixed rod body is fixedly connected to the base, and the unlocking rod body is sleeved below the fixed rod body and can be extended and retracted relative to the fixed rod body. In addition, the lifting operating member is connected below the unlocking rod body and can be extended and retracted relative to the unlocking rod body.

[0006] The lifting mechanism is disposed in the base and is linked to the lifting operating member of the control rod via a lifting rope. The lifting mechanism comprises an annular rope pulley, a rewinding unit, and a follower. The annular rope pulley is rotatable about the axis of the rolling bar and has a plurality of raised second abutment portions on its inner circumference. The rewinding unit is connected to the annular rope pulley and functions to rotate and reset the annular rope pulley after the annular rope pulley stops being subjected to force. The follower has a plurality of teeth on its outer circumference and is coaxially disposed with the annular rope pulley in the base. The follower comprises a plurality of elastic arms, each of which corresponds in position to the plurality of second abutment portions. One end of the lifting rope is fixedly connected to the annular rope pulley, and the other end extends from the base, into the control rod, and is fixedly connected to the lifting operating member. When the lifting operating member is subjected to force and extends relative to the unlocking lever, the lifting rope moves with the lifting operating member and drives the annular rope pulley to rotate in a forward direction.

[0007] The unlocking mechanism is arranged on the base and is linked to the unlocking rod body of the control rod through an unlocking rope. The unlocking mechanism includes a movable member movably arranged in the base. The movable member includes a pushing portion. One end of the unlocking rope is fixedly connected to the movable member, and the other end extends from the base, extends into the control rod and is fixedly connected to the unlocking rod body. When the unlocking rod body is subjected to force and extends relative to the fixed rod body, the unlocking rope moves together with the unlocking rod body and drives the movable member to move in a first direction, causing the pushing portion of the movable member to engage the multiple teeth on the outer periphery of the follower and drive the follower to rotate in the reverse direction.

[0008] The actuating mechanism is connected between the lifting mechanism and the drive connector. The actuating mechanism includes a drive shaft and at least one swinging pawl. The drive shaft extends axially along the scroll bar, with one end extending into the drive connector and the other end fixedly connected to the follower so that the drive shaft rotates in the same direction as the follower. The at least one swinging pawl is swingably disposed between the drive shaft and the drive connector.

[0009] When the lifting operating member is subjected to force and extends relative to the unlocking rod body, causing the annular rope pulley to rotate in the forward direction, the multiple elastic arms of the follower respectively engage the multiple second abutment portions on the inner circumference of the annular rope pulley, causing the follower to rotate synchronously with the annular rope pulley in the forward direction, and driving the drive shaft of the actuator to rotate synchronously in the forward direction, causing the at least one swing pawl to engage the at least one first abutment portion of the drive connector, thereby transmitting a torque to the rolling bar to reel in the masking material. Thereafter, when the lifting operating member stops being subjected to force, the rewinding unit drives the annular rope pulley to rotate in a reverse direction opposite to the forward direction. During the process of the annular rope pulley and the follower rotating in the reverse direction, the multiple elastic arms of the follower respectively slide over the tops of the multiple second abutment portions, and the annular rope pulley does not drive the follower to rotate together.

[0010] On the other hand, when the unlocking lever is subjected to force and extends relative to the fixed lever, causing the follower to rotate in the reverse direction, the follower drives the drive shaft of the actuating mechanism to rotate synchronously in the reverse direction, causing the at least one swing pawl to disengage and not engage with the at least one first abutment portion of the drive connector. At this time, the drive connector and the rolling bar bear the weight of the masking material and can rotate idly relative to the drive shaft to unfold the masking material.

[0011] In one embodiment of the present invention, the unlocking mechanism further includes a return spring disposed between the base and the movable member. When the unlocking lever is subjected to force and extends relative to the fixed lever, and the unlocking rope drives the movable member toward the first direction, the return spring undergoes elastic deformation. Thereafter, when the unlocking lever is no longer subjected to force, the return spring applies a return force to the movable member to reset the movable member. During the reset process, the pushing portion of the movable member slides over the tops of the plurality of teeth on the outer periphery of the driven member, and the movable member does not drive the driven member to rotate.

[0012] In one embodiment of the present invention, the movable member further comprises a main body and a pushing member, the main body having a groove and a retaining edge, and the pushing member having a fixed end and an opposite engaging end. The fixed end is disposed in the groove of the main body, and the engaging end can rotate relative to the fixed end in a yaw direction upon application of force, but is restricted by the retaining edge and cannot rotate in a direction opposite to the yaw direction upon application of force in a stationary state. Preferably, the pushing portion of the movable member is located at the engaging end of the pushing member.

[0013] In another embodiment of the present invention, the pushing portion of the moving member is a rack structure, and the plurality of teeth on the rack structure are right-angled teeth.

[0014] In one embodiment of the present invention, the actuating mechanism further includes a sleeve. The sleeve is mounted on the drive shaft and has an axial groove and at least one through groove. The drive shaft has a positioning rib that is embedded in the axial groove and abuts against one of the side walls of the axial groove as the drive shaft rotates in different directions, thereby driving the sleeve to rotate. When the drive shaft is driven by the follower and rotates in the reverse direction, the swing pawl rotates more than the sleeve, thereby swinging to a submerged position where it does not protrude from the through groove, thereby disengaging from and not engaging the first abutment portion of the drive connector. As a result, the rolling bar can rotate idly relative to the sleeve of the actuating mechanism to deploy the masking material.

[0015] Preferably, the actuating mechanism further includes a brake spring, and the base includes a shell structure having a retaining wall. The brake spring is sleeved on the sleeve, with one end of the brake spring abutting against the retaining wall of the shell structure and the other end extending into the axial groove and hooking against the positioning rib of the drive shaft. When the swing pawl engages the first abutting portion of the drive connector and the drive connector and the rolling bar bear the weight of the masking material and intend to rotate in the reverse direction, the brake spring provides a retarding force to the rolling bar.

[0016] In one embodiment of the present invention, the rewind unit includes a spring wheel and a scroll spring. The spring wheel is rotatably mounted on a spring column of the base and is connected to the annular rope pulley so as to rotate with the annular rope pulley. One end of the scroll spring is fixed to the spring column of the base, and the other end is fixed to the spring wheel. The scroll spring is wound approximately around the spring column. When the spring wheel rotates relative to the spring column, the scroll spring contracts or releases according to the rotation direction of the spring wheel. When the lifting operating member is subjected to force and extends relative to the unlocking rod, causing the annular rope pulley to rotate in the forward direction, the annular rope pulley drives the spring wheel to rotate in the energy storage direction, causing the scroll spring to gradually release. At this time, if the lifting operating member stops being subjected to force, the storage spring wheel will rotate in the direction opposite to the energy storage direction under the action of a rewinding elastic force provided by the spiral spring, and drive the annular rope wheel to rotate in the reverse direction, and the spiral spring will gradually shrink on the storage spring wheel.

[0017] In one embodiment of the present invention, the follower further includes a main body and a plurality of supporting springs. The plurality of elastic arms can elastically swing relative to the main body. The plurality of supporting springs are respectively arranged in positions corresponding to the plurality of elastic arms to ensure that the plurality of elastic arms maintain a state of protruding toward the plurality of second abutting portions. In this way, the plurality of elastic arms can respectively abut against the plurality of second abutting portions when the annular pulley rotates in the forward direction. One end of each supporting spring is integrally connected to the corresponding elastic arm, and the other end abuts against the main body. Alternatively, one end of each supporting spring is integrally connected to the main body, and the other end abuts against the corresponding elastic arm.

[0018] The pull rod curtain operating mechanism of the present invention and the curtains used therein have at least the following advantages in use:

[0019] (1) The pull rod curtain operating mechanism of the present invention is small in size and has a thin appearance. Its application on curtains can reduce the restrictions on the overall appearance design of the curtains.

[0020] (2) The actuating mechanism of the pull-rod curtain operating mechanism of the present invention includes the swing pawl. After the lifting operating member is subjected to force and extends relative to the unlocking rod, the swing pawl engages the first abutting portion of the drive connecting member, so that the rolling bar of the curtain can resist the downward pulling force caused by the weight of the shielding material through the engagement relationship between the actuating mechanism and the drive connecting member after the lifting operating member stops being subjected to force, thereby maintaining a stationary state. Compared with the prior art that only uses a brake spring to press the hollow sleeve to lock the hollow sleeve so that it is not rotated by the weight of the blade, the pull-rod curtain operating mechanism of the present invention can be used for curtains with heavier shielding materials, thereby reducing the restrictions on the selection of shielding materials and width sizes of the applied curtains.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a partially exploded perspective view of an embodiment of the pull-rod curtain operating mechanism and the curtain to which it is applied according to the present invention.

[0023] Figure 2 for Figure 1 The curtains are shown in the figure, and the shielding material and part of the upper beam are omitted.

[0024] Figure 3 for Figure 1 Exploded perspective view of the pull rod curtain operating mechanism.

[0025] Figure 4 for Figure 1 Another perspective exploded view of the pull rod curtain operating mechanism.

[0026] Figure 5 for Figure 1 Top view of the pull rod curtain operating mechanism in.

[0027] Figure 6 for Figure 5 Partial cross-sectional view along line AA.

[0028] Figure 7 for Figure 5 A partial cross-sectional view of line BB in FIG.

[0029] Figure 8 for Figure 5 Partial cross-sectional view along line AA.

[0030] Figure 9 This is a schematic diagram of the operation of the lifting mechanism of the pull-rod curtain operating mechanism.

[0031] Figure 10 FIG1 is a cross-sectional schematic diagram of a driven component of a pull-rod curtain operating mechanism in another embodiment of the present invention.

[0032] Figure 11 for Figure 5 Cross-sectional view of line CC in .

[0033] Figure 12 for Figure 5 Cross-sectional view of line DD in FIG.

[0034] Figure 13 for Figure 5 A partial cross-sectional view of line EE in FIG.

[0035] Figure 14 This is a schematic diagram of the actuating mechanism of a pull-rod curtain operating mechanism.

[0036] Figure 15 for Figure 1 A partial enlarged view of the pull rod type curtain operating mechanism is shown, and the first shell is omitted.

[0037] Figure 16 This is a schematic diagram of the unlocking mechanism of a pull-rod curtain operating mechanism.

[0038] Figure 17 for Figure 15 A three-dimensional view of the main body of the moving part of the unlocking mechanism.

[0039] Figure 18 This is a partial enlarged view of a pull rod type curtain operating mechanism in yet another embodiment of the present invention, with the first housing omitted.

[0040] Wherein, the reference numerals:

[0041] 100,100a: Pull rod curtain operating mechanism

[0042] 110:Card slot

[0043] 120: lifting rope

[0044] 1201: End

[0045] 140: Unlocking rope

[0046] 141: Knot

[0047] 200: Curtains

[0048] 220: Beam

[0049] 222:Fixed bracket

[0050] 224: Upper beam side cover

[0051] 226:Plate body

[0052] 240:Scroll bar

[0053] 260:Shielding material

[0054] 300: Washer

[0055] 1: Base

[0056] 11: First shell

[0057] 111: Support axis

[0058] 112: Spring column

[0059] 113:Fixed column

[0060] 114: first contact surface

[0061] 12: Second shell

[0062] 121: shaft column

[0063] 122: Shell and tube structure

[0064] 1221: Block Wall

[0065] 2: Control lever

[0066] 21:Fix the rod

[0067] 22: Unlock the rod

[0068] 221: Second end plug

[0069] 23: Lifting operating parts

[0070] 231: First end plug

[0071] 24: Universal joint

[0072] 3: Drive connector

[0073] 31: ribs

[0074] 32: First contact portion

[0075] 4: Lifting mechanism

[0076] 41: Ring pulley

[0077] 411: Second contact portion

[0078] 412: Annular groove

[0079] 42: Rewind unit

[0080] 421: Storage spring wheel

[0081] 422: Scroll spring

[0082] 43,43',43a: follower

[0083] 431,431a: Ontology

[0084] 4311,4311a: tooth

[0085] 4312:Joint card block

[0086] 432: Elastic Arm

[0087] 433,433': Supporting shrapnel

[0088] 5: Actuating mechanism

[0089] 51: Drive shaft

[0090] 511: Positioning rib

[0091] 512:Card block

[0092] 52: Swing pawl

[0093] 53: Sleeve

[0094] 531: axial groove

[0095] 532:Through slot

[0096] 54: Brake spring

[0097] 6,6a: Unlocking mechanism

[0098] 61,61a: moving parts

[0099] 611,611a: Subject

[0100] 6111: Groove

[0101] 6111a: abutting the top surface

[0102] 6112:Blocking edge

[0103] 6113: Flexible part

[0104] 6114: Protruding fixing portion

[0105] 6115: Rope hole

[0106] 6116: Second abutting surface

[0107] 612a: rack structure

[0108] 612: Push piece

[0109] 62,62a: Return spring

[0110] 63: Auxiliary spring

[0111] A1: Axis

[0112] D1: Forward direction

[0113] D2: Reverse direction

[0114] D3: Energy storage direction

[0115] D4: Yaw direction

[0116] D5, D5a: First direction

[0117] EE: Engaging end

[0118] FE: Fixed end DETAILED DESCRIPTION

[0119] The following describes the technical content and features of the present invention in detail through multiple embodiments and drawings. Figure 1 and Figure 2In a first embodiment of the present invention, a pull-rod curtain operating mechanism 100 is applied to a curtain 200. The curtain 200 comprises an upper beam 220, a rolling bar 240, and a shielding material 260. The upper beam 220 is generally rectangular and houses the rolling bar 240 therein. The rolling bar 240 extends along an axis A1 and is rotatable about the axis A1 in a forward direction D1 and an opposite reverse direction D2. The curtain operating mechanism 100 is disposed at one end of the rolling bar 240. The upper beam 220 comprises two fixing brackets 222, two upper beam side covers 224, and a plate 226. Each fixing bracket 222 is generally L-shaped, with its short side facing upward for attachment to the plate 226 and its long side perpendicular to the horizontal plane of the building and fixedly connected to the curtain operating mechanism 100 and the rolling bar 240. More specifically, the short sides of the two fixing frames 222 are respectively embedded in the two ends of the plate 226; the long side of one of the two fixing frames 222 extends into and engages with a slot 110 on a base 1 of the curtain operating mechanism 100, and the long side of the other fixing frame 222 engages with the other end of the rolling bar 240, which is not provided with the curtain operating mechanism 100. The plate 226 is fixed to the horizontal surface of the building to support and secure the curtain operating mechanism 100 and the rolling bar 240. The two upper beam side covers 224 respectively cover the two fixing frames 222 to enhance the overall decorative appearance of the upper beam 220.

[0120] In this definition, "forward rotation" refers to a component rotating about the axis A1 in the forward direction D1, and "reverse rotation" refers to a component rotating about the axis A1 in the reverse direction D2. The following content is applicable to this definition and will not be repeated here.

[0121] In this embodiment, the rolling bar 240 is an extruded aluminum tube with a hollow protrusion extending longitudinally from its inner circumference to form a non-circular inner periphery. One end of the masking material 260 is fixed to the rolling bar 240. As the rolling bar 240 rotates about the axis A1, the masking material 260 is wound around the rolling bar 240 or released from the rolling bar 240, thereby enabling the curtain 200 to be folded and unfolded.

[0122] See also Figures 2 to 4The curtain operating mechanism 100 includes the base 1, a control rod 2, a drive connector 3, a lifting mechanism 4, an actuating mechanism 5 and an unlocking mechanism 6. The base 1 is composed of a first shell 11 and a second shell 12 that are docked and locked with each other. The first shell 11 has a support shaft 111 extending along the axis A1. The second shell 12 has a shaft column 121 and a shell tube structure 122. The shaft column 121 is located on the side of the second shell 12 facing the first shell 11, and the shell tube structure 122 is located on the side of the second shell 12 facing away from the first shell 11 and extends in a direction away from the first shell 11, wherein the extending end of the shell tube structure 122 has a retaining wall 1221. When the first shell 11 and the second shell 12 are mated, a accommodating space is formed between the first shell 11 and the second shell 12, and the lifting mechanism 4, the actuating mechanism 5 and the unlocking mechanism 6 are accommodated in the accommodating space.

[0123] See also Figure 1 and Figure 2 , and please also refer to Figure 5 and Figure 6 . The control pull rod 2 is arranged below the base 1, and includes a fixed rod body 21, an unlocking rod body 22, a lifting operating member 23 and a universal joint 24. The fixed rod body 21 is in the shape of a hollow tube, and its upper end is connected to the base 1 through the universal joint 24 so that the fixed rod body 21 can pivot or rotate relative to the base 1. The unlocking rod body 22 is in the shape of a hollow tube and is passed through the fixed rod body 21. At least a part of the unlocking rod body 22 protrudes from the bottom of the fixed rod body 21, and the unlocking rod body 22 can be extended and retracted relative to the fixed rod body 21. The lifting operating member 23 is also in the shape of a tube and is passed through the unlocking rod body 22. At least a part of the lifting operating member 23 protrudes from the bottom of the unlocking rod body 22, and the lifting operating member 23 can be extended and retracted relative to the unlocking rod body 22. In this embodiment, the fixed rod 21, the unlocking rod 22, and the lifting member 23 are stacked in sequence from the outside inward. In other embodiments of the present invention, different stacking arrangements can be employed, provided that the outside can at least partially contact the unlocking rod 22 and the lifting member 23 to facilitate gripping and operation. Furthermore, in other embodiments of the present invention, the lifting member can have other more ergonomically designed shapes, provided that the lifting member is attached to the underside of the unlocking rod in a manner that allows it to be retracted relative to the unlocking rod.

[0124] See also Figures 2 to 4 The driving connecting member 3 is generally cylindrical, and its outer peripheral surface has a plurality of axially extending ribs 31. Figure 2As shown, the ribs 31 of the drive connector 3 are fixed to the inner periphery of the rolling bar 240. In this way, the drive connector 3 is fixedly connected to one end of the rolling bar 240. In this configuration, when the drive connector 3 rotates, the rolling bar 240 is driven to rotate along with the drive connector 3. Figure 3 As shown, the inner wall surface of the driving connecting member 3 further has a plurality of first abutting portions 32 (only one of which is shown) protruding inwards. Figure 7 In this embodiment, when the first housing 11 and the second housing 12 are aligned, the support shaft 111 of the first housing 11 passes through the retaining wall 1221 of the housing tube structure 122 of the second housing 12. The cylindrical drive connector 3 is sleeved within the housing tube structure 122, and the end of the support shaft 111 that passes through the retaining wall 1221 of the housing tube structure 122 further protrudes from the drive connector 3. Preferably, a washer 300 made of a wear-resistant material is disposed between the drive connector 3 and the housing tube structure 122.

[0125] In this embodiment, the curtain 200 is a roller blind, but the curtain operating mechanism of the present invention can also be applied to other types of curtains, such as Venetian blinds, Roman blinds, and cellular blinds. In another embodiment of the present invention, the curtain operating mechanism is applied to a venetian blind, where the roller bar is used to retract or release a lift cord connected to the lower end of the curtain body to retract or extend the curtain body relative to the winding shaft. In yet another embodiment of the present invention, the curtain operating mechanism is applied to a venetian blind, where the roller bar is a solid shaft that works with a winding shaft to retract and release the lift cord to achieve folding and unfolding of the venetian blind. The drive connector has a non-circular hole (not shown). The solid shaft has a non-circular cross-section and is inserted into the non-circular hole of the drive connector, preventing the solid shaft from rotating relative to the drive connector. Furthermore, a latch can be provided at the overlap between the solid shaft and the drive connector to prevent the solid shaft from moving axially relative to the drive connector. Thereby, the drive connecting member is fixedly connected to one end of the solid machine shaft. When the drive connecting member rotates, the solid machine shaft is driven to rotate along with the drive connecting member.

[0126] Please also see Figures 3 to 7 The lifting mechanism 4 is arranged in the accommodation space of the base 1 and includes an annular rope pulley 41, a rewinding unit 42 and a driven member 43. The annular rope pulley 41 can rotate around the axis A1, and its inner peripheral surface has a plurality of inwardly protruding second abutting portions 411. At the same time, as Figure 4As shown, the outer circumferential surface of the annular sheave 41 is radially inwardly recessed to form an annular groove 412, and the outer circumference of the annular sheave 41 is toothed. The lifting mechanism 4 is connected to the lifting operating member 23 of the control lever 2 via a lifting rope 120. More specifically, one end 1201 of the lifting rope 120 is fixedly connected to the annular sheave 41, and at least a portion of the lifting rope 120 is wound in the annular groove 412. The other end of the lifting rope 120, opposite to the end 1201, extends from the accommodating space of the base 1 and into the control lever 2, and finally is fixedly connected to a first end plug 231 of the lifting operating member 23. The lifting rope 120 is maintained in a taut state. In this way, when the lifting operating member 23 is subjected to force and extends relative to the unlocking rod 22, the lifting rope 120 moves with the lifting operating member 23, driving the annular sheave 41 to rotate forward.

[0127] Please also see Figure 3 、 Figure 4 、 Figure 7 and Figure 8 . The rewind unit 42 is connected to the annular rope pulley 41, and its function is to accumulate a rewinding elastic force when the annular rope pulley 41 is rotated under force, and to release the rewinding elastic force after the annular rope pulley 41 stops being subjected to force to drive the annular rope pulley 41 to rotate in the opposite direction and reset. The rewind unit 42 includes a spring storage wheel 421 and a volute spring 422. The spring storage wheel 421 is composed of a cylindrical wheel body and a toothed disc. The toothed disc engages the toothed outer periphery of the annular rope pulley 41 and has an axial hole. Through the axial hole, the spring storage wheel 421 is sleeved on a spring storage column 112 of the first shell 11 of the base 1 and can rotate relative to the spring storage column 112. The volute spring 422 is accommodated in the cylindrical wheel body of the spring storage wheel 421. As Figure 8 As shown, one end of the volute spring 422 is fixed to the cylindrical wheel body of the spring storage wheel 421, and the other end is fixed to the spring storage column 112 of the first shell 11 of the base 1. The volute spring 422 is roughly wound around the spring storage column 112 as the axis, and can be tightened or loosened according to the different rotation directions of the spring storage wheel 421, thereby accumulating or releasing the rewinding elastic force. The follower 43 includes a main body 431 and a plurality of elastic arms 432. The main body 431 is coaxially arranged in the base 1 with the annular pulley 41, and the outer periphery of the main body 431 has a plurality of teeth 4311. The elastic arms 432 are arranged on the main body 431, and can elastically swing relative to the main body 431 and respectively correspond in position to the second abutment portions 411 (such as Figure 8 shown).

[0128] See also Figure 6 、 Figure 8 and Figure 9When the lifting operating member 23 is forced to extend relative to the unlocking rod 22, the lifting rope 120 is pulled to drive the annular rope wheel 41 to rotate forward, causing the elastic arms 432 of the follower 43 to respectively abut against the second abutting portions 411 on the inner peripheral surface of the annular rope wheel 41. Figure 8 As shown. Thereafter, during the forward rotation of the annular rope pulley 41, the follower 43 will be driven by the annular rope pulley 41 and rotate forward synchronously with the annular rope pulley 41, and the storage spring wheel 421 will continue to be driven by the annular rope pulley 41 to rotate in an energy storage direction D3, causing the spiral spring 422 to gradually contract and accumulate a rewinding elastic force. At this time, if the lifting operating member 23 stops being subjected to force, the spiral spring 422 releases the rewinding elastic force, causing the storage spring wheel 421 to rotate in the opposite direction of the energy storage direction D3, thereby driving the annular rope pulley 41 to reverse and reset, and the spiral spring 422 gradually releases on the storage spring wheel 421. During the reverse rotation of the annular rope pulley 41, the elastic arms 432 of the follower 43 slide over the tops of the second abutting portions 411, respectively, as shown Figure 9 At this time, the annular rope pulley 41 will not drive the driven member 43 to rotate together.

[0129] Please continue reading Figure 8 and Figure 9 In this embodiment, the follower 43 further includes a plurality of supporting springs 433. The supporting springs 433 are respectively arranged in positions corresponding to the elastic arms 432. One end of each supporting spring 433 is integrally connected and fixed to the corresponding elastic arm 432, and the other end is a free end that abuts the body 431. With this configuration, the supporting springs 433 can ensure that when the annular pulley 41 rotates reversely, the elastic arms 432 slide over the tops of the second abutting portions 411, then recover and maintain a state of protruding toward the second abutting portions 411, and can effectively abut against the second abutting portions 411 when the annular pulley 41 rotates forward.

[0130] See also Figure 10 In another embodiment of the present invention, one end of each of the supporting springs 433' of the follower 43' is integrally connected and fixed to the body 431, and the other end forms a corresponding elastic arm 432 against which the free end abuts. Thus, the supporting springs 433' ensure that when the annular rope pulley 41 rotates reversely, the elastic arms 432, after sliding over the tops of the second abutting portions 411, return to and maintain their protruding position toward the second abutting portions 411, effectively abutting against the second abutting portions 411 during forward rotation of the annular rope pulley 41.

[0131] Please refer back to Figure 3 、 Figure 4 and Figure 7 Please also refer to Figures 11 to 13The actuating mechanism 5 is connected between the lifting mechanism 4 and the driving connecting member 3, and includes a driving shaft 51, a plurality of swinging pawls 52, a sleeve 53 and a brake spring 54. Figure 4 As shown, the drive shaft 51 has a positioning rib 511 and a plurality of blocks 512. At the same time, the body 431 of the follower 43 further includes a plurality of engaging blocks 4312 protruding toward the blocks 512 of the drive shaft 51. Figure 7 and Figure 11 As shown, by engaging the engaging blocks 4312 with the engaging blocks 512, one end of the drive shaft 51 is fixedly connected to the follower 43, and the other end extends along the axis A1 and into the interior of the drive connector 3. When the follower 43 rotates, the drive shaft 51 is driven by the follower 43 and rotates synchronously with the follower 43. Figure 13 As shown, the swing pawls 52 are swingably disposed between the drive shaft 51 and the drive connector 3, and one end of each swing pawl 52 is pivotally embedded in and abuts against a recess on the drive shaft 51. The sleeve 53 is sleeved on the drive shaft 51. One end of the sleeve 53 sleeved on the drive shaft 51 is provided with an axial groove 531 (shown in FIG. Figure 3 ), and a plurality of through slots 532 are provided at the other end. Figure 7 、 Figure 12 and Figure 13 As shown, when the sleeve 53 is mounted on the drive shaft 51, the positioning rib 511 of the drive shaft 51 is embedded in the axial groove 531. As the drive shaft 51 rotates in different directions, the positioning rib 511 abuts against one of the two side walls of the axial groove 531, driving the sleeve 53 to rotate. Because the circumferential width of the positioning rib 511 is slightly smaller than the circumferential width of the axial groove 531, rather than being a perfect fit, a slight idle travel is initially generated when the drive shaft 51 rotates in different directions, after which the positioning rib 511 abuts against the other side wall of the axial groove 531. This idle travel causes the swing pawls 52 to either protrude from their corresponding through-slots 532 to abut against the first abutting portion 32 of the drive connector 3, or to retract into their corresponding through-slots 532 without contacting the first abutting portion 32, as the drive shaft 51 rotates in different directions. The brake spring 54 is sleeved on the sleeve 53 , with one end thereof abutting against the retaining wall 1221 of the housing structure 122 , and the other end extending into the axial groove 531 and hooking against the positioning rib 511 of the drive shaft 51 .

[0132] See also Figures 15 to 17 , and please also refer to Figure 6 The unlocking mechanism 6 is provided in the base 1 and is linked to the unlocking rod 22 of the control rod 2 via an unlocking rope 140. The unlocking mechanism 6 comprises a moving member 61, a return spring 62 and an auxiliary spring 63 (shown in FIG. Figure 16The moving member 61 includes a main body 611 and a pushing member 612. Figure 17 As shown, the main body 611 has a groove 6111, a blocking edge 6112, a flexible portion 6113, a protruding fixing portion 6114, a rope hole 6115 and a second abutting surface 6116. Please also refer to Figures 15 to 17 One end of the unlocking rope 140 is passed through the rope hole 6115 of the main body 611 and is tied into a knot 141 to be fixed. The pushing member 612 has a fixed end FE and an opposite engaging end EE. The fixed end FE is embedded in the groove 6111 of the main body 611, so that the pushing member 612 can swing relative to the main body 611 with the fixed end FE as the axis. When the pushing member 612 is not subjected to force and is in a stationary state, the pushing member 612 abuts against the blocking edge 6112. At this time, if a force is applied to the pushing member 612 in a direction away from the blocking edge 6112, the engaging end EE of the pushing member 612 swings relative to the fixed end FE in a yaw direction D4. When the pushing member 612 rotates in the yaw direction D4, the engaging end EE pushes the flexible portion 6113 to elastically deform it. Thereafter, once the pushing member 612 stops being subjected to force, the flexible portion 6113 releases the elastic force to drive the pushing member 612 to rotate and return to rest against the retaining edge 6112.

[0133] Please also see Figure 6 and Figure 15 . After the end of the unlocking rope 140 fixedly connected to the moving part 61 extends from the rope hole 6115 of the main body 611, it passes around the curved surface of the shaft column 121, then extends downward from the base 1 and extends into the control rod 2, and finally is fixedly connected to a second end plug 221 of the unlocking rod body 22. The unlocking rope 140 is maintained in a tensioned state. In this way, when the unlocking rod body 22 is subjected to force and extends relative to the fixed rod body 21, the unlocking rope 140 will move together with the unlocking rod body 22 to drive the moving part 61 to move in a first direction D5.

[0134] Please continue reading Figures 15 to 17 , and please also refer to Figure 4 、 Figure 8 and Figure 9 The lower end of the return spring 62 is fixed on a fixing column 113 of the first housing 11, and the upper end is fixed on the protruding fixing portion 6114 (shown in FIG. Figure 17 The auxiliary spring 63 is sleeved on the unlocking rope 140, and its upper end abuts against the second abutting surface 6116 (shown in FIG. 1 ) of the main body 611 of the moving member 61. Figure 17), its lower end is narrowed and abuts the knot 141 of the unlocking rope 140. When the unlocking rod body 22 extends relative to the fixed rod body 21 and drives the moving member 61 to move toward the first direction D5, a pushing portion of the moving member 61 engages the teeth 4311 on the periphery of the body 431 of the driven member 43 and drives the driven member 43 to reverse. At the same time, during the movement of the moving member 61, the length of the return spring 62 is stretched and accumulates a return elastic force. In the present embodiment, the pushing portion of the moving member 61 is the engaging end EE of the pushing member 612. After this, if the unlocking rod body 22 stops being stressed, the return spring 62 applies the return elastic force to the moving member 61, drives the moving member 61 to move in the opposite direction of the first direction D5 and reset. The auxiliary spring 63 can prevent the moving member 61 from moving excessively in the opposite direction of the first direction D5, and therefore helps to accurately reset the moving member 61 to its original position. During the resetting process of the moving member 61, the engaging end EE of the pushing member 612 of the moving member 61 slides over the top of the teeth 4311 on the outer periphery of the main body 431 of the follower 43 or does not contact the teeth 4311. At this time, the moving member 61 will not drive the follower 43 to rotate.

[0135] See also Figure 18. In yet another embodiment of the present invention, the outer periphery of the body 431a of the driven member 43a of the pull-rod curtain operating mechanism 100a has a plurality of teeth 4311a, and the teeth 4311a are ratchet teeth. The moving member 61a of the unlocking mechanism 6a includes a main body 611a and a rack structure 612a, one end of the unlocking rope 140 is inserted into and knotted and fixed in the main body 611a, and the plurality of teeth on the rack structure 612a are right-angled teeth. In this embodiment, the pushing portion of the moving member 61a is the rack structure 612a, and the two ends of the return spring 62a respectively abut between a fixed element (not shown) on the base of the pull-rod curtain operating mechanism 100a and a contact top surface 6111a of the main body 611a of the moving member 61a. When the control rod 2 of the pull-rod curtain operating mechanism 100a is operated, causing the unlocking rod (not shown) to be extended relative to the fixed rod, the movable member 61a is driven by the unlocking cord 140 to move in a first direction D5a, causing the pushing portion of the movable member 61a (i.e., the rack structure 612a) to engage the teeth 4311a on the outer periphery of the body 431a of the follower 43a, thereby driving the follower 43a in reverse rotation. Simultaneously, the length of the return spring 62a is compressed, accumulating a return force. Thereafter, when the unlocking rod (not shown) is no longer subjected to force, the return spring 62a exerts the return force on the movable member 61a, thereby driving the movable member 61a in a direction opposite to the first direction D5a and returning to its original position. During the resetting process, the rack structure 612a of the moving member 61a slides over the tops of the teeth 4311a on the periphery of the body 431a of the follower 43a or does not contact the teeth 4311a, and at this time the moving member 61a does not drive the follower 43a to rotate.

[0136] The following will describe in detail the operation of the curtain 200 of the present invention and the corresponding component actuation process. Figures 1 to 7 as well as Figure 11 and Figure 12 The user can repeatedly pull down the lifting operating member 23 to close the curtain 200. Each time the user pulls the lifting operating member 23 outward from an initial position to an extended position relative to the unlocking rod 22, the lifting operating member 23 drives the annular rope wheel 41 to rotate forward through the lifting rope 120, causing the elastic arms 432 of the follower 43 to rotate forward. Figure 12As shown, the second abutting portions 411 respectively engage with the inner circumferential surface of the annular rope pulley 41, thereby driving the follower 43 to rotate forward synchronously with the annular rope pulley 41, thereby driving the drive shaft 51 to rotate forward synchronously, causing the swing pawls 52 to extend out of the through slots 532 and engage the first abutting portions 32 of the drive connector 3. In this case, the rotation of the annular rope pulley 41 in the forward rotation direction D1 sequentially transmits a co-directional torque to the rolling bar 240 through the follower 43, the drive shaft 51, and the drive connector 3. Under the action of this torque, the rolling bar 240 rotates and reels at least a portion of the masking material 260 upward.

[0137] When the user stops applying force, the rewind unit 42 drives the annular rope pulley 41 to reverse and reset, causing the portion of the lifting rope 120 previously released from the annular rope pulley 41 to be rewound into the annular groove 412 of the annular rope pulley 41, thereby driving the lifting operating member 23 to return from the extended position to the initial position relative to the unlocking lever 22. At the same time, the driven member 43 and the drive shaft 51 stop rotating.

[0138] In addition, if Figure 1 、 Figure 2 、 Figure 7 and Figure 12 As shown, during the forward rotation of the drive shaft 51, the end of the brake spring 54 that is hooked against the positioning rib 511 moves accordingly, causing the radius of the portion of the brake spring 54 that is mounted on the sleeve 53 to decrease, allowing the brake spring 54 to rotate along with the sleeve 53. Simultaneously, the rotation of the sleeve 53 drives the drive connector 3 to rotate, thereby driving the rolling bar 240 to rotate and retract a portion of the masking material 260. Once the drive shaft 51 stops rotating after the user stops applying force, the drive connector 3 and the rolling bar 240 bear the weight of the masking material 260 and rotate slightly in the reverse direction D2, causing the brake spring 54 to be hooked against one end of the positioning rib 511 and pushed, thereby causing the radius of the part of the brake spring 54 mounted on the sleeve 53 to expand, thereby increasing the friction between the shell and tube structure 122, and providing a blocking force to the rolling bar 240 through the meshing relationship between the swing pawls 52 and the first abutting portions 32, which helps to maintain the rolling bar 240 in a stationary state.

[0139] By repeating the above operation, the user can intermittently provide a torque to the rolling bar 240 in the forward direction D1 to roll up at least a portion of the shielding material 260 until the lower edge of the shielding material 260 reaches the height desired by the user, or the shielding material 260 is completely rolled up on the rolling bar 240 and the curtain 200 is completely folded.

[0140] See also Figures 1 to 6 , and also refer to Figures 14 to 16. The user can pull down the unlocking rod 22 to unfold the curtain 200 of the utility model. When the user pulls the unlocking rod 22 relative to the fixed rod 21, the unlocking rod 22 drives the moving member 61 to move in the first direction D5 through the unlocking rope 140, so that the pushing portion of the moving member 61 (i.e., the pushing member 612) engages with the teeth 4311 on the outer periphery of the main body 431 of the follower 43 and drives the follower 43 to reverse, thereby driving the drive shaft 51 to reverse synchronously. Because the circumferential width of the positioning rib 511 of the drive shaft 51 is smaller than the circumferential width of the axial groove 531, the rotation amount of the swinging pawls 52 will be greater than the rotation amount of the sleeve 53 and respectively rotate to a submerged position that does not protrude from the through groove 532, such as Figure 14 As shown, the swing pawls 52 are disengaged and no longer engage with the first abutting portions 32 of the drive connector 3. At this point, the drive connector 3 and the rolling bar 240 bear the weight of the masking material 260 and can rotate relative to the drive shaft 51 of the actuator 5 to release the masking material 260 downward.

[0141] Preferably, the curtain 200 further includes a damper installed at the other end of the rolling bar 240 fixed to the drive connector 3, preferably a one-way damper, to provide a damping force to the rolling bar 240 when the rolling bar 240 rotates under the weight of the shielding material 260, thereby reducing the rotation speed of the rolling bar 240, causing the lower edge of the shielding material 260 to slowly lower, thereby achieving the effect of slowly unfolding the curtain 200.

[0142] In this embodiment, when the user stops applying force to the unlocking lever 22, the return spring 62 applies a return force to the movable member 61, causing the movable member 61 to move in a direction opposite to the first direction D5 and return to its original position. Simultaneously, the unlocking rope 140 drives the unlocking lever 22 back to its pre-extended position. Because the movable member 61 does not rotate the follower 43 during the return process, the swing pawls 52 remain disengaged and unengaged from the first abutting portions 32 of the drive connector 3, and the rolling bar 240 continues to rotate until the masking material 260 is fully released. In other words, the user can fully deploy the masking material 260 by pulling down the unlocking lever 22 once. In some other embodiments of the present invention, once the user stops applying force to the unlocking lever, the movable member will drive the follower to rotate forward during the reset process, thereby driving the swing pawls of the actuating mechanism to swing to the protruding and retracted positions and engage the first abutting portions of the drive connector, causing the rolling bar to stop rotating and suspending the release of the masking material. In this way, the user can release the masking material intermittently and in stages.

[0143] The above descriptions are merely embodiments of the present invention. Any equivalent changes made within the scope of the specification and claims of the present invention should be included in the patent scope of the present invention.

[0144] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims of the present invention.

Claims

1. A pull rod curtain operating mechanism, applied to a curtain to operate the folding and unfolding of the curtain, the curtain having a rolling bar and a shielding material connected to the rolling bar, characterized in that: The pull rod curtain operating mechanism comprises: a driving connecting member, fixedly connected to one end of the rolling bar so that the rolling bar can rotate together with the driving connecting member, and having an inner wall surface thereof having at least a first abutting portion; a base, disposed corresponding to the end of the scroll bar; A control rod is provided below the base and comprises: A fixed rod, fixedly connected to the base; an unlocking rod, at least partially protruding from below the fixing rod and capable of extending and retracting relative to the fixing rod; and a lifting operating member, at least partially protruding from below the unlocking rod and capable of extending and retracting relative to the unlocking rod; A lifting mechanism, disposed in the base and linked to the lifting operating member of the control rod via a lifting rope, comprises: an annular sheave capable of rotating about the axial direction of the rolling bar, and having a plurality of second abutment portions on its inner circumference; a rewinding unit connected to the annular rope pulley to drive the annular rope pulley to rotate and return to its original position after the annular rope pulley stops being subjected to force; and a follower having a plurality of teeth on its outer circumference, being coaxially arranged with the annular rope pulley in the base and comprising a plurality of elastic arms corresponding to the plurality of second abutment portions respectively; wherein one end of the lifting rope is fixedly connected to the annular rope pulley, and the other end extends from the base, penetrates into the control pull rod and is fixedly connected to the lifting operating member; when the lifting operating member is subjected to a force and extends relative to the unlocking rod body, the lifting rope moves together with the lifting operating member and drives the annular rope pulley to rotate in a forward direction; when the annular rope pulley rotates in the forward direction, the plurality of elastic arms respectively abut against the plurality of second abutment portions, causing the follower to rotate synchronously with the annular rope pulley in the forward direction; An unlocking mechanism, disposed on the base and linked to the unlocking rod of the control rod via an unlocking rope, comprises: a moving member movably disposed in the base and comprising a pushing portion; wherein one end of an unlocking rope is fixedly connected to the moving member, and the other end extends from the base, penetrates the control rod, and is fixedly connected to the unlocking rod; when the unlocking rod is subjected to a force and extends relative to the fixed rod, the unlocking rope moves along with the unlocking rod, driving the moving member to move in a first direction, causing the pushing portion of the moving member to engage the plurality of teeth on the outer periphery of the driven member and drive the driven member to rotate in a reverse direction opposite to the forward direction; and An actuating mechanism connected between the lifting mechanism and the driving connector comprises: a drive shaft extending along the axial direction of the rolling bar, with one end thereof extending into the interior of the driving connector and the other end being fixedly connected to the driven member so that the drive shaft can rotate in the same direction as the driven member; and At least one swing pawl, swingably disposed between the drive shaft and the drive connector; wherein, when the lifting operating member is subjected to force, the annular rope pulley, the driven member and the driving shaft rotate in the forward direction, so that the at least one swinging pawl engages the at least one first abutting portion of the driving connecting member, thereby transmitting a torque to the rolling bar to reel in the shielding material; wherein, when the lifting operating member stops being subjected to force, the rewinding unit drives the annular rope pulley to rotate in the reverse direction; during the process of the annular rope pulley rotating in the reverse direction, the multiple elastic arms of the driven member respectively slide over the tops of the multiple second abutting portions, and at this time, the annular rope pulley does not drive the driven member to rotate together; Among them, when the unlocking rod is subjected to force and extends relative to the fixed rod and causes the follower to rotate in the reverse direction, the follower drives the drive shaft of the actuator mechanism to rotate synchronously in the reverse direction, so that the at least one swing pawl disengages and does not engage with the at least one first abutment portion of the drive connecting member. At this time, the drive connecting member and the rolling bar bear the weight of the masking material and can rotate idly relative to the drive shaft to unfold the masking material.

2. The pull rod curtain operating mechanism according to claim 1, characterized in that: The unlocking mechanism further includes at least one return spring, which is arranged between the base and the moving part. When the unlocking rod is subjected to force and extends relative to the fixed rod and drives the moving part to move in the first direction through the unlocking rope, the at least one return spring undergoes elastic deformation. Thereafter, when the unlocking rod stops being subjected to force, the at least one return spring applies a return elastic force to the moving part to drive the moving part to reset; during the resetting process, the pushing portion of the moving part slides over the top of the multiple teeth on the outer periphery of the follower and the moving part does not drive the follower to rotate.

3. The pull rod curtain operating mechanism according to claim 2, characterized in that: The mobile part also includes: A main body having a groove and a retaining edge; and A pushing member has a fixed end and an opposite engaging end, the fixed end is disposed in the groove of the main body, and the engaging end can rotate relative to the fixed end in a yaw direction after being subjected to force, but is restricted by the blocking edge and cannot rotate in a direction opposite to the yaw direction after being subjected to force in a stationary state; wherein the pushing portion of the movable member is located at the engaging end of the pushing member.

4. The pull rod curtain operating mechanism according to claim 2, characterized in that: The pushing portion of the moving member is a rack structure, and a plurality of teeth on the rack structure are right-angle teeth.

5. The pull rod curtain operating mechanism according to claim 1, characterized in that: The base has a shaft column. After the unlocking rope extends from the end thereof fixedly connected to the moving part, it first passes through the arc surface of the shaft column and then extends out of the base, extends into the control rod and is fixedly connected to the unlocking rod body.

6. The pull rod curtain operating mechanism according to claim 1, characterized in that: The actuating mechanism further includes a sleeve, which is sleeved on the drive shaft and has an axial groove and at least one through groove; the drive shaft has a positioning rib embedded in the axial groove, and abuts against one of the groove walls on both sides of the axial groove as the drive shaft rotates in different directions to drive the sleeve to rotate; the at least one swing pawl rotates in the reverse direction when the drive shaft is driven by the follower and rotates in the reverse direction, and rotates to a submerged position where it does not protrude from the through groove, thereby disengaging from and not engaging with the at least one first abutting portion of the drive connector, so that the rolling bar can rotate relative to the sleeve of the actuating mechanism to unfold the masking material.

7. The pull rod curtain operating mechanism according to claim 6, characterized in that: The actuating mechanism further includes a brake spring, and the base includes a shell-tube structure, which has a baffle; the brake spring is sleeved on the sleeve, one end of which abuts against the baffle of the shell-tube structure, and the other end extends into the axial groove and hooks onto the positioning rib of the drive shaft; when the at least one swing pawl engages the first abutment portion of the drive connector, and the drive connector and the rolling bar bear the weight of the shielding material and want to rotate in the reverse direction, the brake spring provides a braking force to the rolling bar.

8. The pull rod curtain operating mechanism according to claim 1, characterized in that: The rewind unit further comprises: a spring storage wheel rotatably mounted on a spring storage post of the base, and the spring storage wheel is connected to the annular rope pulley and can rotate together with the annular rope pulley; and a volute spring having one end fixed to the spring storage post of the base and the other end fixed to the spring storage wheel, the volute spring being wound approximately around the spring storage post; when the spring storage wheel rotates relative to the spring storage post, the volute spring contracts or relaxes in accordance with the rotation direction of the spring storage wheel; When the lifting operating member is subjected to force and extends relative to the unlocking rod, causing the annular rope wheel to rotate in the forward direction, the annular rope wheel drives the storage spring wheel to rotate in an energy storage direction, causing the scroll spring to gradually contract. At this time, if the lifting rope stops being subjected to force, the storage spring wheel will rotate in the opposite direction of the energy storage direction under the action of a rewinding elastic force provided by the scroll spring, and drive the annular rope wheel to rotate in the reverse direction, and the scroll spring will gradually release on the storage spring wheel.

9. The pull rod curtain operating mechanism according to claim 1, characterized in that: The follower further comprises: A main body, allowing the plurality of elastic arms to elastically swing relative to the main body; and Multiple supporting springs are arranged in positions corresponding to the multiple elastic arms to ensure that the multiple elastic arms protrude toward the multiple second abutment portions and respectively abut against the multiple second abutment portions when the annular pulley rotates in the forward direction; wherein one end of each supporting spring is integrally connected to the corresponding elastic arm, and the other end abuts against the main body.

10. The pull rod curtain operating mechanism according to claim 1, wherein: The follower further comprises: A main body, allowing the plurality of elastic arms to elastically swing relative to the main body; and Multiple supporting springs are arranged in positions corresponding to the multiple elastic arms to ensure that the multiple elastic arms protrude toward the multiple second abutment portions and respectively abut against the multiple second abutment portions when the annular pulley rotates in the forward direction; wherein one end of each supporting spring is integrally connected to the main body, and the other end abuts against the corresponding elastic arm.

11. A curtain, characterized in that: Include: A scroll bar; a masking material, one end of which is connected to the rolling bar so as to be rolled up or released by the rolling bar; and A pull rod curtain operating mechanism for operating the curtain to be folded and unfolded comprises: a driving connecting member, fixedly connected to one end of the rolling bar so that the rolling bar can rotate together with the driving connecting member, and having an inner wall surface thereof having at least a first abutting portion; a base, disposed corresponding to the end of the scroll bar; A control rod is provided below the base and comprises: A fixed rod, fixedly connected to the base; an unlocking rod, at least partially protruding from below the fixing rod and capable of extending and retracting relative to the fixing rod; and a lifting operating member, at least partially protruding from below the unlocking rod and capable of extending and retracting relative to the unlocking rod; A lifting mechanism, disposed in the base and linked to the lifting operating member of the control rod via a lifting rope, comprises: an annular sheave capable of rotating about the axial direction of the rolling bar, and having a plurality of second abutment portions on its inner circumference; a rewinding unit connected to the annular rope pulley to drive the annular rope pulley to rotate and return to its original position after the annular rope pulley stops being subjected to force; and a follower having a plurality of teeth on its outer periphery, coaxially disposed with the annular rope pulley in the base, and comprising a plurality of elastic arms corresponding to the plurality of second abutment portions; wherein one end of the lifting rope is fixedly connected to the annular rope pulley, and the other end extends from the base, penetrates the control rod, and is fixedly connected to the lifting operating member; when the lifting operating member is subjected to a force and extends relative to the unlocking rod, the lifting rope moves with the lifting operating member and drives the annular rope pulley to rotate in a forward direction; An unlocking mechanism, disposed on the base and linked to the unlocking rod of the control rod via an unlocking rope, comprises: a moving member movably disposed in the base and comprising a pushing portion; wherein one end of an unlocking rope is fixedly connected to the moving member, and the other end extends from the base, penetrates the control rod, and is fixedly connected to the unlocking rod; when the unlocking rod is subjected to a force and extends relative to the fixed rod, the unlocking rope moves along with the unlocking rod, driving the moving member to move in a first direction, causing the pushing portion of the moving member to engage the plurality of teeth on the outer periphery of the driven member and drive the driven member to rotate in a reverse direction opposite to the forward rotation direction; and An actuating mechanism connected between the lifting mechanism and the driving connector comprises: a drive shaft extending along the axial direction of the rolling bar, with one end thereof extending into the interior of the driving connector and the other end being fixedly connected to the driven member so that the drive shaft can rotate in the same direction as the driven member; and At least one swing pawl, swingably disposed between the drive shaft and the drive connector; When the cam is in the forward direction and the driving mechanism is turned away from the driving mechanism, the cam is in the forward direction and the driving mechanism is turned away from the driving mechanism, so that the cam is in the forward direction and the driving mechanism is turned away from the driving mechanism. Among them, when the unlocking rod is subjected to force and extends relative to the fixed rod and causes the follower to rotate in the reverse direction, the follower drives the drive shaft of the actuator mechanism to rotate synchronously in the reverse direction, so that the at least one swing pawl disengages and does not engage with the at least one first abutment portion of the drive connecting member. At this time, the drive connecting member and the rolling bar bear the weight of the masking material and can rotate idly relative to the drive shaft to unfold the masking material.

12. The curtain according to claim 11, characterized in that The unlocking mechanism further includes at least one return spring, which is arranged between the base and the moving part. When the unlocking rod is subjected to force and extends relative to the fixed rod and drives the moving part to move in the first direction through the unlocking rope, the at least one return spring undergoes elastic deformation. Thereafter, when the unlocking rod stops being subjected to force, the at least one return spring applies a return elastic force to the moving part to drive the moving part to reset; during the resetting process, the pushing portion of the moving part slides over the top of the multiple teeth on the outer periphery of the follower and the moving part does not drive the follower to rotate.

13. The curtain according to claim 11, characterized in that The mobile part also includes: A main body having a groove and a retaining edge; and A pushing member has a fixed end and an opposite engaging end, the fixed end is arranged in the groove of the main body, and the engaging end can swing relative to the fixed end in a yaw direction after being subjected to force, but is restricted by the blocking edge and cannot swing in the direction opposite to the yaw direction; wherein the pushing portion of the movable member is located at the engaging end of the pushing member.

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