A flashlight dual-drive curtain driving structure and curtain

Abstract

The present invention provides a flashlight dual-drive curtain driving structure and a curtain. The driving structure includes a rotating wheel, a driven torsion core, an active torsion core, a driven rotating member, and an active rotating member receiving electric rotational power, which are coaxially arranged from right to left; the rotating wheel and the driven torsion core are fixedly connected; wherein the driven rotating member and the active rotating member are rotationally connected and a linkage structure is arranged; the left end of the active torsion core is rotationally connected with the driven rotating member or one of the active rotating members, the right end of the active rotating member is provided with an active inclined slot, the right end of the driven rotating member is provided with a driven inclined slot, and the torsion core protrusion of the active torsion core is arranged in a common slot composed of the active inclined slot and the driven inclined slot; the shape change of the common slot drives the active torsion core to rotate axially and move to the right to engage with the driven torsion core; when disconnected: the electric rotational power drives the active rotating member to rotate in the opposite direction to a predetermined angle to reset.

Description

Technical Field

[0001] The invention belongs to the field of rolling, and in particular relates to a flashlight dual-drive curtain driving structure and a curtain. Background Art

[0002] The curtains with a dual drive system of motor and spring on the market can be driven to retract and extend by controlling the motor, or by manually pulling the curtains and driving the curtains to retract and extend through the spring system. When manually pulling and retracting, the curtains must overcome the resistance at the motor end to drive the curtain fabric to retract and extend. Compared with the same specification of non-pull curtains, greater spring elasticity is required, and the spring material is increased, which increases the cost of the curtains. The motor must rotate with the spring, which reduces the service life of the motor, such as the structure in the manual and electric dual-control curtains of patent CN116084819A. Patent CN205840751U discloses a manual and electric roller shutter drive, and patent CN101338648A discloses a manual and electric clutch controller for a tubular motor, but the above patent structures are relatively complex and can only be applied to the corresponding types of curtain structures. Summary of the invention

[0003] The invention provides a flashlight dual-drive curtain driving structure and a curtain.

[0004] The objective of the present invention is achieved in the following manner: a flashlight dual-drive curtain driving structure, comprising a rotating wheel, a driven torsion core, a driving torsion core, a driven rotating member, and a driving rotating member receiving electric rotational power, which are coaxially arranged from right to left; the rotating wheel and the driven torsion core are fixedly connected; wherein the driven rotating member and the driving rotating member are rotationally connected and a linkage structure is provided so that the driven rotating member and the driving rotating member rotate together after the relative rotation angle between them exceeds a certain angle; the left end of the driving torsion core is rotationally connected to the driven rotating member or the driving rotating member, and the right end of the driving rotating member is rotationally connected to the driven rotating member or the driving rotating member. An active tilting slot is provided, a driven tilting slot is provided at the right end of the driven rotating member, a torsion core protrusion is provided at the left end of the active torsion core, and the torsion core protrusion is provided in a common slot formed by the active tilting slot and the driven tilting slot; in the process that the active rotating member rotates to rotate together with the driven rotating member, the shape change of the common slot drives the active torsion core to rotate axially and move to the right to engage with the driven torsion core; when disconnected: the electric rotating power drives the active rotating member to rotate in the opposite direction to a predetermined angle and reset; a torsion core elastic reset member is provided between the driven torsion core and the active torsion core to keep the two away from each other in the axial direction.

[0005] It also includes a stationary outer cylinder, the driven rotating member is rotatably arranged inside the outer cylinder, and a resistance structure for increasing the rotation resistance of the driven rotating member is arranged between the driven rotating member and the outer cylinder.

[0006] The resistance structure includes at least one bidirectional torsion spring sleeved on the driven rotating member; the bidirectional torsion spring and the driven rotating member are interference fit, and end grooves are respectively arranged on the outer cylinder corresponding to the two ends of the bidirectional torsion spring; the ends of the bidirectional torsion spring are respectively arranged in the corresponding end grooves.

[0007] The resistance structure includes a resistance strip or a resistance ring fixedly arranged on the outer surface of the driven rotating part or the inner surface of the active rotating part to increase the friction force.

[0008] An elastic return member of the rotating member is arranged between the active rotating member and the driven rotating member to enable the active rotating member and the driven rotating member to return to an initial relative angle; the maximum driving force of the elastic return member of the rotating member applied to the driven rotating member cannot be greater than the resistance of the resistance mechanism applied to the driven rotating member; the width of the end slot corresponds to a predetermined angle in the circumferential direction of the outer cylinder.

[0009] The linkage structure includes a tenon arranged on the left side of the outer circumferential surface of the active rotating member, and an avoidance opening is arranged on the driven rotating member at a position corresponding to the tenon, and the width of the avoidance opening is greater than the width of the tenon; the elastic return member of the rotating member is two one-way torsion springs in opposite directions; one end of the two one-way torsion springs is respectively arranged on both sides of the tenon, and the other ends are respectively inserted into the torsion spring grooves arranged on the driven rotating member.

[0010] The active inclined chute and the driven inclined chute both include two inclined surfaces, which form a V shape; the active inclined chute and the driven inclined chute are in corresponding positions; in an initial state, the active torsion core is separated from the driven torsion core, and the lowest positions of the active inclined chute and the driven inclined chute coincide with each other.

[0011] A clamping key is arranged at the right end of the active torsion core, and a clamping groove is arranged at the left end of the driven torsion core; when clamped, the clamping key is located in the clamping groove; and the electric rotating power is a motor.

[0012] It also includes a roller tube for rolling up the curtain, the rotating wheel is arranged in the roller tube and rotates synchronously with the roller tube; the electric rotating power is a motor; the motor is arranged at one end of the roller through a head, and an energy storage spring group is arranged at the other end.

[0013] Compared with the prior art, the present invention can realize manual and electric driving of curtains, rolling curtains, etc. Moreover, when manually driven, there is no resistance caused by the motor. The present invention has a simple structure, small occupation, low cost, and is suitable for mass promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the driving structure of the present invention.

[0015] Figure 2 yes Figure 1 Exploded view of the motor (motor hidden).

[0016] Figure 3 It is a flow chart of the assembly of the drive mechanism of the present invention.

[0017] Figure 4 yes Figure 1 Hide the motor schematic in .

[0018] Figure 5 yes Figure 4 Cross-sectional view along the BB direction.

[0019] Figure 6 This is a schematic diagram of the change of the common slot from unlocked to engaged state (some parts are hidden).

[0020] Figure 7 This is the corresponding diagram between the end groove of the outer tube and the position of the bidirectional torsion spring.

[0021] Figure 8 It is a schematic diagram of the positions of the one-way torsion spring, the active rotating part, and the driven rotating part.

[0022] Fig. 9 It is a schematic diagram of the active rotating parts.

[0023] Fig.10 This is a schematic diagram of the driven rotating part.

[0024] Fig.11 It is a three-dimensional diagram of the driving mechanism (hidden motor, outer cylinder, one one-way torsion spring, and one two-way torsion spring).

[0025] Fig.12 yes Fig.11 Schematic diagram of the other side.

[0026] Among them, 1 is a rotating wheel, 2 is an outer cylinder, 20 is an end groove, 3 is a driven torsion core, 4 is a torsion core elastic reset member, 5 is an active torsion core, 50 is a torsion core protrusion, 6 is a driven rotating member, 60 is a driven inclined slide groove, 61 is a torsion spring groove, 7 is a bidirectional torsion spring, 8 is a spacer, 9 is a unidirectional torsion spring, 10 is an active rotating member, 11 is an active inclined slide groove, 12 is a tenon, and 13 is a motor. DETAILED DESCRIPTION

[0027] In the present invention, unless otherwise clearly specified and limited, the technical terms used in this application shall be the common meanings understood by the technicians of the present invention. The terms "connected", "connected", "fixed", "set", etc. should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be directly connected, or indirectly connected through an intermediate medium; may be mechanically connected or electrically connected. Unless otherwise clearly specified and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or indirectly in contact through an intermediate medium. Moreover, the first feature "above" or "above" or "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below" or "below" or "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Relational terms such as first, second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc., to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0028] The following will provide a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments. Figure 1-12As shown, a flashlight dual-drive curtain driving structure comprises a rotating wheel 1, a driven torsion core 3, an active torsion core 5, a driven rotating member 6, and an active rotating member 10 receiving electric rotational power, which are coaxially arranged from right to left; the rotating wheel 1 and the driven torsion core 3 are fixedly connected; wherein the driven rotating member 6 and the active rotating member 10 are rotationally connected and a linkage structure is provided so that the driven rotating member 6 and the active rotating member 10 rotate together after the relative rotation angle between them exceeds a certain angle; the left end of the active torsion core 5 is rotationally connected to the driven rotating member 6 or the active rotating member 10, and the right end of the active rotating member 10 is provided with an active inclined slide groove 11, a driven inclined slot 60 is provided at the right end of the driven rotating member 6, and a torsion core protrusion 50 is provided at the left end of the active torsion core 5, and the torsion core protrusion 50 is provided in the common slot formed by the active inclined slot 11 and the driven inclined slot 60; in the process of the active rotating member 10 rotating to rotate together with the driven rotating member, the shape change of the common slot drives the active torsion core 5 to rotate axially and move to the right to engage with the driven torsion core 3; when disconnected: the electric rotary power drives the active rotating member 10 to rotate in the opposite direction to reset at a predetermined angle; a torsion core elastic reset member 4 is provided between the driven torsion core 3 and the active torsion core 5 to keep the two away from each other in the axial direction. The driven rotating member 6 in the present invention is sleeved on the active rotating member 10. Of course, the active rotating member 10 can also be sleeved on the driven rotating member 6. As long as the two can be ensured to be connected in rotation and have a relative rotation angle of a predetermined angle. After exceeding this predetermined angle, the two rotate together. Here, the left and right in from right to left are only relative left and right, just to indicate the relative position. The rotating wheel 1 and the driven torsion core 3 can be fixedly connected by a detachable method such as screws, or they can be integrally set as a part. The left end of the rotating torsion core can be rotatably sleeved inside the active rotating member 10, or can be rotatably sleeved outside the driven rotating member 6, as long as the rotation connection is achieved. After engagement, the active torsion core 5 drives the driven torsion core 3 to rotate together, thereby driving the rotating wheel 1 to rotate. The rotation of the rotating wheel 1 can drive the winding tube of the rolling curtain to rotate together. The rotating wheel 1 and the winding tube can be coaxially fixedly connected and rotated together, or they can be driven to rotate together by other connection methods such as gear meshing, as long as they rotate together, they are within the protection scope of the present invention. The electric rotating power here can be a motor 13. The active inclined chute 11 and the driven inclined chute 60 have corresponding positions and corresponding quantities. The correspondence here can be one-to-one correspondence, and there can be corresponding relationships such as multiple correspondence. As long as there is at least one common groove and the shape change of the common groove drives the active torsion core 5 to rotate and move axially in the common groove. At the maximum position of the common groove, the lowest position of the active inclined chute 11 and the driven inclined chute 60 coincide. The lowest position here refers to a range where the lowest area is located. When the torsion core protrusion 50 is within this range, the active torsion core 5 is axially disengaged from the driven torsion core 3 .When the active rotating member 10 rotates, the angle of the common groove changes, because the active inclined groove 11 and the driven inclined groove 60 and the core protrusion 50 are all beveled, pushing the active core 5 to move axially while the active rotating member 10 rotates until it completely enters the engaging groove of the driven core 3. The angle of the reverse rotation of the active rotating member 10 is preferably the angle that allows the common groove to return to the initial position, that is, the position where the lowest positions of the active inclined groove 11 and the driven inclined groove 60 overlap, and the lowest position refers to the position farthest from the driven core 3. After the active rotating member 10 rotates in the opposite direction, it no longer blocks the active core 5. The active core 5 moves axially to the left under the push of the core reset elastic member. Because of the beveled fit, the active core 5 rotates into the common groove while the axis moves, thereby disengaging from the driven core 3. After the electric rotation ends, the electric rotation power drives the active rotating member 10 to rotate in the opposite direction by a certain angle, the space of the common groove changes, and the core elastic reset member 4 selects a suitable elastic force to push the driven core 3 to rotate to the left and disengage from the active core 5. The present invention can realize manual and electric driving of curtains, rolling curtains, etc. Moreover, when manually driven, there is no resistance caused by the motor 13. The present invention has a simple structure, small occupancy, low cost, and is suitable for mass promotion.

[0029] It also includes a stationary outer cylinder 2, the driven rotating member 6 is rotatably arranged inside the outer cylinder 2, and a resistance structure for increasing the rotation resistance of the driven rotating member 6 is arranged between the driven rotating member 6 and the outer cylinder 2. There are many ways to fix the outer cylinder 2 here. It is preferred that it can be fixed together with the stationary part of the motor 13 that provides electric rotation power, and it can be fixed in other ways, as long as the driving structure does not move or rotate as a whole, the outer cylinder 2 does not move. The outer cylinder 2 can be only arranged outside the driven rotating member 6, or it can extend left and right to cover the outside of the active rotating member 10 and the driven torsion core 3. The resistance structure here does not prevent the driven rotating member 6 from rotating, but only increases the resistance or friction of rotation. If the resistance structure is not set, if the rotation resistance of the driven rotation is too small, the following situations may occur: first, the active rotating member 10 starts to rotate and drives the driven rotating member 6 to rotate, and the relative angle between the two does not change or the change angle is too small, which causes the shape of the common groove to not change or change in place, and the active torsion core 5 cannot move axially and engage with the driven torsion core 3. Second: after the engagement, the motor 13 drives the curtain to rise and fall to a certain position and stops, and the motor 13 and the rotating wheel 1 stop rotating. At this time, it is necessary to maintain the engagement state to facilitate the electric control of the curtain to rise and fall at any time. In order to maintain the engagement state, it is necessary to ensure that the shape of the common groove is stable. If the resistance of the driven rotating part 6 is too small, the elastic reset part 4 of the torsion core will push the active torsion core 5 to move axially, thereby driving the driven rotating part 6 to rotate, causing the engagement state to be unstable and disengaged. The resistance structure in the present invention can increase the resistance to the rotation of the driven rotating part 6, and the driven rotating part 6 will not rotate without a certain driving force; this ensures that the first, when just starting, the shape of the common groove can be changed to push the active torsion core 5 to move and engage; second: when it is necessary to ensure stable engagement, there will be no relative rotation between the driven rotating part 6 and the active rotating part 10, the relative position of the two will not change, and the shape of the common groove will not change and the shape will be stable. In this way, the axial position of the active torsion core 5 will not change at will, and the active torsion core 5 and the driven torsion core 3 are stably connected and not disengaged. There can be many types of resistance structures, as long as the rotation resistance of the driven rotating member 6 during bidirectional rotation is increased, and the resistance structure and method can be used to increase the friction force.

[0030] The resistance structure includes at least one bidirectional torsion spring 7 sleeved on the driven rotating member 6; the bidirectional torsion spring 7 and the driven rotating member 6 are interference fit, and the two ends of the bidirectional torsion spring 7 on the outer tube 2 are respectively provided with end slots 20; the ends of the bidirectional torsion spring 7 are respectively provided in the corresponding end slots 20. Preferably, two end slots 20 are provided on the outer tube 2, one end of each bidirectional torsion spring 7 is provided in one of the end slots 20, and the other end is provided in the other end slot 20 on the corresponding side. Multiple bidirectional torsion springs 7 can share two end slots 20, or each bidirectional torsion spring can be provided with its own corresponding two end slots 20, which are all within the protection scope of the present invention.

[0031] Alternatively, the resistance structure includes a resistance strip or resistance ring fixedly arranged on the outer surface of the driven rotating member 6 or the inner surface of the active rotating member 10 to increase the friction force. The resistance strip or resistance ring is made of a material with a large friction coefficient. One or more resistance rings can be arranged along the axial direction. The resistance strips can be respectively on the circumferential surface.

[0032] An elastic reset member of the rotating member is arranged between the active rotating member 10 and the driven rotating member 6 so that the active rotating member 10 and the driven rotating member 6 return to the initial relative angle; the maximum driving force of the elastic reset member of the rotating member on the driven rotating member 6 cannot be greater than the resistance of the resistance mechanism on the driven rotating member 6; the width of the end slot 20 corresponds to a predetermined angle in the circumferential direction of the outer cylinder 2. In general, the angle of the reverse rotation of the motor 13 just makes the common groove return to the initial shape, that is, the state where the lowest positions of the active inclined chute 11 and the driven inclined chute 60 coincide, which facilitates the entry of the active torsion core 5. However, in special cases, if the motor 13 is not reversed in place or exceeds the predetermined angle, the active torsion core 5 will be stuck and unable to return to the correct position, and the separation of the active torsion core 5 and the driven torsion core 3 cannot be achieved. At this time, the elastic reset member of the rotating member can help keep the angle between the active rotating member and the driven rotating member 6 at a suitable position, so that the position of the common groove is correct. If the driving force of the elastic reset member of the rotating member exceeds the resistance, the shape of the common groove cannot be stable. When the motor 13 drives the active rotating member 10 and the driven rotating member 6 to rotate together, when the end of the bidirectional torsion spring 7 that rotates with the driven rotating member 6 touches the side wall of the end slot 20, the bidirectional torsion spring 7 can no longer rotate. The driven rotating member 6 and the bidirectional torsion spring 7 have an interference fit, and there is a certain friction force to ensure that the driven rotating member 6 does not rotate randomly. When the motor 13 reverses a predetermined angle, the active rotating member 10 also reverses a certain angle. Because the width of the end slot 20 is relatively wide, at this time, if the bidirectional torsion spring 7 rotates in the opposite direction within a certain angle, the outer cylinder 2 has no resistance to the bidirectional torsion spring 7, and the driven rotating member 6 can drive the bidirectional torsion spring 7 to rotate in the opposite direction at a certain angle without resistance. The elastic reset member of the rotating member can pull the driven rotating member 6 to reset.

[0033] The linkage structure includes a tenon 12 arranged on the left side of the outer circumferential surface of the active rotating member 10, and a relief opening is arranged on the driven rotating member 6 at a position corresponding to the tenon 12, and the width of the relief opening is greater than the width of the tenon 12; the elastic reset member of the rotating member is two one-way torsion springs 9 in opposite directions; one end of the two one-way torsion springs 9 is respectively arranged on both sides of the tenon 12, and the other end is respectively inserted into the torsion spring groove 61 arranged on the driven rotating member 6. The linkage structure can also be in other shapes, such as arranging multiple tenons 12. For example, the outer circumference of the active rotating member 10 is provided with a relief opening, and the driven rotating member 6 is provided with a tenon 12 inwardly. When the tenon 12 rotates to contact the side wall of the relief opening, the active rotating member 10 and the driven rotating member 6 are linked. A torsion spring groove 61 can be arranged on the driven rotating member 6, and a torsion spring groove 61 can be arranged corresponding to the end of each one-way torsion spring 9. Only one torsion spring groove 61 may be provided, and the distance from the center of the torsion spring groove 61 to the side wall of the corresponding avoidance opening is equal. When the one-way torsion spring 9 rotates, there is elastic force in one direction and no elastic force in the other direction. Two one-way torsion springs 9 in opposite directions ensure that there is one-way elastic force in both directions. In the initial state, neither of the two one-way torsion springs 9 has elastic force or both have elastic force and are in a balanced state. At this time, the tenon 12 is located in the middle position of the avoidance opening; the middle lowest positions of the active inclined chute 11 and the driven inclined chute 60 coincide, and a pair of lowest positions may be aligned with the tenon 12. The width direction here is the circumferential direction, and the length direction refers to the axial direction. A left baffle is provided at the left end of the active rotating member 10, and a spacer 8 is provided on the driven rotating member 6 between the right end of the tenon 12 and the left end face of the avoidance opening; the spacer 8 is provided with a card block inwardly to be inserted into the avoidance opening. The spacer 8 is used to separate the bidirectional torsion spring 7 and the one-way torsion spring 9 to prevent their positions from sliding to an inappropriate position in the axial direction. A right stop ring is also provided on the upper surface of the driven rotating member 6 near the right end. The left stop cover and the spacer 8 limit the position of the one-way torsion spring 9. The spacer 8 and the right stop ring limit the position of the two-way torsion spring 7. A driven inclined slide groove 60 is provided at the right end of the driven rotating member 6.

[0034] The active tilting chute 11 and the driven tilting chute 60 both include two inclined surfaces, which form a V-shape; the active tilting chute 11 and the driven tilting chute 60 correspond in position; in the initial state, the active torsion core 5 is separated from the driven torsion core 3, and the active tilting chute 11 coincides with the lowest position of the driven tilting chute 60. The bottom of the V-shaped inclined surface is preferably flat to form a trapezoidal groove. The active tilting chute 11 is located below the driven tilting chute 60 and the angles can be equal or similar.

[0035] A snap-in key is provided at the right end of the active torsion core 5, and a snap-in groove is provided at the left end of the driven torsion core 3; when engaged, the snap-in key is located in the snap-in groove; the electric rotating power is the motor 13. The width of the snap-in groove of the driven torsion core 3 is preferably greater than or at least not less than the width of the snap-in key of the active torsion core 5, and the two may also be matched with an inclined surface. The torsion core elastic reset member 4 may be a compression spring provided between the driven torsion core 3 and the active torsion core 5. A cylinder is provided in the middle position of the driven torsion core 3 for installing a compression spring, and the other end of the compression spring is provided in a circular hole in the middle position of the active torsion core 5, or other arrangements may be used.

[0036] The curtain adopting the above-mentioned flashlight dual-drive curtain driving structure also includes a roller tube for rolling up the curtain, the rotating wheel 1 is arranged in the roller tube and rotates synchronously with the roller tube; the electric rotating power is a motor 13; the motor 13 is arranged at one end of the roller through a control head, and an energy storage spring group is arranged at the other end. For the specific structure, reference can be made to existing patents such as CN116084819A, a structure of a manual electric dual-control curtain, and other patents. However, in the existing curtains, the output shaft of the tubular motor 13 directly drives the roller tube to rotate. In the present invention, the rotating wheel 1 is driven to rotate by the clutch mechanism, and the rotation drives the roller tube to rotate synchronously, so that manual pulling without resistance can be achieved. Other structures belong to the prior art and will not be described in detail.

[0037] During specific implementation: During assembly, install two bidirectional torsion springs 7, spacers 8, and two unidirectional torsion springs 9 on the driven rotating member 6 in sequence; align the active rotating member 10 with the end position of the unidirectional torsion spring 9 and insert it into the driven rotating member 6. Insert the active torsion core 5 into the right end of the driven rotating member 6, and place the torsion core elastic reset member 4 in the middle of the active torsion core 5. Fix the driven torsion core 3 and the rotating wheel 1 with screws, and the outer cylinder 2 is sleeved on the driven torsion core 3. Insert the installed active rotating member 10 and the driven rotating member 6 part into the outer cylinder 2. Install the entire drive structure on the motor 13, insert the output shaft of the motor 13 into the socket of the active rotating member 10, and fix the outer cylinder 2 and the motor 13 housing.

[0038] In the initial state, the tenon 12 of the active rotating member 10 is located in the middle position of the avoidance opening of the driven rotating member 6; the middle lowest position of the active tilting slot 11 and the driven tilting slot 60 coincide. The motor 13 drives the active rotating member 10 to rotate until the tenon 12 contacts the side wall of the avoidance opening, and the driven rotating member 6 and the active rotating member 10 rotate together to push the active torsion core 5 to rotate the axis to move into the engaging groove of the driven torsion core 3, and the active torsion core 5 and the driven torsion core 3 are in an engaged state. The motor 13 can drive the rotating wheel 1 to rotate and stop. When it is necessary to change to the manual state, the motor 13 rotates in the reverse direction by a predetermined angle, the active rotating member rotates in the reverse direction to reset, and the driven rotating member 6 is reset under the reset force of the one-way torsion spring 9, ensuring that the lowest positions of the active tilting slot 11 and the driven tilting slot 60 coincide. The torsion core elastic reset member 4 pushes the active torsion core 5 to move axially to the left and rotates into the lowest position of the active tilting slot 11 and the driven tilting slot 60 to achieve unlocking.

[0039] The technical features of the above-mentioned embodiments can be combined arbitrarily, and as long as there is no contradiction in the combination of these technical features, they should be considered as the scope of this specification. Without departing from the overall concept of the present invention, the technical solution of the present invention and the equivalent replacement or change, as well as the changes and improvements made, should also be regarded as the protection scope of the present invention.

Claims

1. A flashlight dual-drive curtain driving structure, characterized in that: The invention comprises a rotating wheel, a driven torsion core, a driving torsion core, a driven rotating member, and a driving rotating member receiving electric rotating power, which are coaxially arranged from right to left; the rotating wheel and the driven torsion core are fixedly connected; the driven rotating member and the driving rotating member are rotationally connected and a linkage structure is arranged so that the driven rotating member and the driving rotating member rotate together after the relative rotation angle between them exceeds a certain angle; the left end of the driving torsion core is rotationally connected with the driven rotating member or one of the driving rotating members, the right end of the driving rotating member is arranged with an active inclined slot, the right end of the driven rotating member is arranged with a driven inclined slot, the left end of the driving torsion core is arranged with a torsion core protrusion, and the torsion core protrusion is arranged in a common slot composed of the active inclined slot and the driven inclined slot; in the process that the driving rotating member rotates to rotate together with the driven rotating member, the shape change of the common slot drives the driving torsion core to rotate axially and move to the right to engage with the driven torsion core; when disconnected: the electric rotating power drives the driving rotating member to rotate in the opposite direction to a predetermined angle to reset; a torsion core elastic reset member is arranged between the driven torsion core and the driving torsion core to keep the two away from each other in the axial direction.

2. According to claim 1, a flashlight dual-drive curtain driving structure is characterized in that: It also includes a stationary outer cylinder, the driven rotating member is rotatably arranged inside the outer cylinder, and a resistance structure for increasing the rotation resistance of the driven rotating member is arranged between the driven rotating member and the outer cylinder.

3. According to claim 2, a flashlight dual-drive curtain driving structure is characterized in that: The resistance structure includes at least one bidirectional torsion spring sleeved on the driven rotating member; the bidirectional torsion spring and the driven rotating member are interference fit, and end grooves are respectively arranged on the outer cylinder corresponding to the two ends of the bidirectional torsion spring; the ends of the bidirectional torsion spring are respectively arranged in the corresponding end grooves.

4. According to claim 2, a flashlight dual-drive curtain driving structure is characterized in that: The resistance structure includes a resistance strip or a resistance ring fixedly arranged on the outer surface of the driven rotating part or the inner surface of the active rotating part to increase the friction force.

5. According to claim 3, the flashlight dual-drive curtain driving structure is characterized in that: An elastic return member of the rotating member is arranged between the active rotating member and the driven rotating member to enable the active rotating member and the driven rotating member to return to an initial relative angle; the maximum driving force of the elastic return member of the rotating member applied to the driven rotating member cannot be greater than the resistance of the resistance mechanism applied to the driven rotating member; the width of the end slot corresponds to a predetermined angle in the circumferential direction of the outer cylinder.

6. A flashlight dual-drive curtain driving structure according to claim 5, characterized in that: The linkage structure includes a tenon arranged on the left side of the outer circumferential surface of the active rotating member, and an avoidance opening is arranged on the driven rotating member at a position corresponding to the tenon, and the width of the avoidance opening is greater than the width of the tenon; the elastic return member of the rotating member is two one-way torsion springs in opposite directions; one end of the two one-way torsion springs is respectively arranged on both sides of the tenon, and the other ends are respectively inserted into the torsion spring grooves arranged on the driven rotating member.

7. The flashlight dual-drive curtain driving structure according to claim 1, characterized in that: The active inclined chute and the driven inclined chute both include two inclined surfaces, which form a V shape; the active inclined chute and the driven inclined chute are in corresponding positions; in an initial state, the active torsion core is separated from the driven torsion core, and the lowest positions of the active inclined chute and the driven inclined chute coincide with each other.

8. The flashlight dual-drive curtain driving structure according to claim 1, characterized in that: A clamping key is arranged at the right end of the active torsion core, and a clamping groove is arranged at the left end of the driven torsion core; when clamped, the clamping key is located in the clamping groove; and the electric rotating power is a motor.

9. A curtain using a flashlight dual-drive curtain driving structure as claimed in any one of claims 1 to 8, characterized in that: It also includes a roller tube for rolling up the curtain, the rotating wheel is arranged in the roller tube and rotates synchronously with the roller tube; the electric rotating power is a motor; the motor is arranged at one end of the roller through a head, and an energy storage spring group is arranged at the other end.

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