Rolling shutter mechanism and air conditioner

Abstract

The present invention provides a rolling curtain mechanism and an air conditioner, wherein the rolling curtain mechanism includes a first rotating part, a second rotating part, a rolling curtain, a pull cord and an auxiliary cord. The scheme limits the winding method and connection method of the rolling curtain, the pull cord and the auxiliary cord, so that the rolling curtain, the pull cord and the auxiliary cord are mutually related when in motion or under tension. In this way, when the rolling curtain is unfolded, the movement of the auxiliary cord will generate tension on the pull cord and the rolling curtain, thereby playing a role in assisting the unfolding of the rolling curtain, so that the rolling curtain can be unfolded smoothly. In addition, when the rolling curtain is in the unfolded state, if an external force (such as an accidental touch by a child) pulls the rolling curtain in a direction away from the second rotating part, due to the existence of the auxiliary cord, a pulling force will be applied to the rolling curtain to prevent the external force from pulling the rolling curtain, so the auxiliary cord also has a locking effect on the rolling curtain, so that the rolling curtain remains in the unfolded state.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a rolling curtain mechanism and an air conditioner. Background Art

[0002] Most of the air inlets and outlets of air conditioners on the market are not completely closed. When not in operation, the air inlet and outlet of the entire machine are connected to the outside world. Dust and foreign matter in the air can easily enter the interior of the air conditioner, causing internal dirt, affecting the heat exchange efficiency of the air conditioner and consumer health. The gap in the air outlet also affects the integrity of the appearance.

[0003] In order to avoid affecting the appearance of the air conditioner when opening or closing the air outlet, a rolling curtain mechanism is used in the related art, and the rolling curtain in the rolling curtain mechanism opens or closes the air outlet by curling and unfolding. However, since the air outlet of the air conditioner is usually arranged horizontally and the rolling curtain is relatively soft, the rolling curtain is not smooth during operation and it is difficult to ensure flatness. Summary of the invention

[0004] The invention provides a rolling curtain mechanism and an air conditioner to realize smooth movement of the rolling curtain.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present invention, the present invention provides a rolling curtain mechanism, comprising: a first rotating part, rotatably arranged; a second rotating part, spaced apart from the first rotating part; a rolling curtain, wherein the first end of the rolling curtain is connected to the first rotating part, and at least a portion of the rolling curtain is wound around the first rotating part along a first winding direction starting from the first end thereof; a pull cord, wherein the first end of the pull cord is located on the second rotating part, and at least a portion of the pull cord is wound around the second rotating part along a second winding direction starting from the first end thereof, and the second end of the pull cord is connected to the second end of the rolling curtain, wherein the second winding direction and the first winding direction have opposite directions of rotation; an auxiliary cord, wherein the first end of the auxiliary cord is connected to the first rotating part, and a portion of the auxiliary cord is wound around the first rotating part along the second winding direction starting from the first end thereof, and the second end of the auxiliary cord is located on the second rotating part, and a portion of the auxiliary cord is wound around the second rotating part along the first winding direction starting from the second end thereof; wherein the first end of the pull cord and the second end of the auxiliary cord are respectively connected to the second rotating part; or, the first end of the pull cord and the second end of the auxiliary cord are connected.

[0006] Furthermore, the rolling shutter mechanism further includes: a coil spring structure, wherein the coil spring structure cooperates with the second rotating part to apply a constant torque to the second rotating part.

[0007] Furthermore, the second rotating part includes: a second rotating shaft, the coil spring structure cooperates with the second rotating shaft; a first wire wheel, sleeved on the second rotating shaft, the pull rope cooperates with the first wire wheel; a second wire wheel, sleeved on the second rotating shaft, the auxiliary rope cooperates with the second wire wheel.

[0008] Furthermore, the first wire pulley has an annular groove for accommodating the pull rope, the second wire pulley has an annular groove for accommodating the auxiliary rope, and the rolling curtain mechanism also includes: an installation box, the coil spring structure is located in the installation box, and the second rotating shaft passes through the installation box.

[0009] Furthermore, the installation box includes an upper box body, a lower box body and a guide sleeve, the upper box body and the lower box body are detachably connected, the coil spring structure and the guide sleeve are both located in a cavity between the upper box body and the lower box body, and the second rotating shaft passes through the guide sleeve.

[0010] Further, the second rotating shaft has a first limiting surface and a second limiting surface, the coil spring structure cooperates with the first limiting surface, the first wire wheel cooperates with the second limiting surface to achieve circumferential limiting, and the second wire wheel cooperates with the second limiting surface to achieve circumferential limiting.

[0011] Furthermore, the first rotating part includes: a first rotating shaft, which is rotatably arranged; a winding drum, which is sleeved on the first rotating shaft, and the rolling curtain is connected to the winding drum; a third wire wheel, which is sleeved on the first rotating shaft, and the auxiliary rope cooperates with the third wire wheel.

[0012] Further, the first rotating shaft has a third limiting surface and a fourth limiting surface, the winding drum and the third limiting surface are matched in a limiting manner, and the third wire wheel and the fourth limiting surface are matched.

[0013] Furthermore, the third wire pulley has an annular groove for accommodating the auxiliary rope, and the rolling curtain mechanism also includes a driving part, which is drivingly connected to the first rotating shaft.

[0014] Furthermore, the rolling shutter mechanism also includes: a frame, the frame having an air outlet, and the rolling shutter is used to cover or avoid the air outlet; a first fixed box, arranged at one end of the frame, and the first rotating part is arranged in the first fixed box; a second fixed box, arranged at the other end of the frame, and the second rotating part is arranged in the second fixed box.

[0015] According to another aspect of the present invention, an air conditioner is provided, comprising the above-mentioned rolling shutter mechanism.

[0016] By applying the technical solution of the present invention, a rolling curtain mechanism is provided, which includes a first rotating part, a second rotating part, a rolling curtain, a pull cord and an auxiliary cord. The solution limits the winding method and connection method of the rolling curtain, the pull cord and the auxiliary cord, so that the rolling curtain, the pull cord and the auxiliary cord are mutually related when they are in motion or under tension. In this way, when the rolling curtain is unfolded, the movement of the auxiliary cord will generate tension on the pull cord and the rolling curtain, thereby playing a role in assisting the unfolding of the rolling curtain, so that the rolling curtain can be unfolded smoothly. In addition, when the rolling curtain is in the unfolded state, if an external force (such as an accidental touch by a child) pulls the rolling curtain in a direction away from the second rotating part, due to the existence of the auxiliary cord, a pulling force will be applied to the rolling curtain to prevent the external force from pulling the rolling curtain. Therefore, the auxiliary cord also has a locking effect on the rolling curtain, so that the rolling curtain remains in the unfolded state.

[0017] With this solution, when the first rotating part rotates, the second rotating part rotates synchronously through the transmission of the auxiliary rope or the rolling curtain, and the rolling curtain and the pull rope are wound or unfolded by changing the rotation direction, so that the air outlet of the air conditioner can be opened or closed. Through the cooperation of the pull rope and the auxiliary rope, the rolling curtain can be subjected to tension during operation and the value of the tension is relatively stable, thus ensuring that the rolling curtain is smoothly curled or unfolded, and has good flatness after unfolding. Moreover, with this solution, only one driving part is needed to realize operation, and there is no need to set driving parts for the two rotating parts respectively, which simplifies the structure and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 An exploded view of a rolling shutter mechanism provided by an embodiment of the present invention is shown;

[0020] Figure 2 Shows Figure 1 A schematic diagram of the rolling shutter mechanism in the rolling shutter unfolded state;

[0021] Figure 3 Shows Figure 1 A schematic diagram of the rolling shutter mechanism in the rolling shutter rolled-up state;

[0022] Figure 4 Shows Figure 1 A cross-sectional view of the second rotating part and other structures;

[0023] Figure 5 Shows Figure 1 A three-dimensional diagram of the second rotating part and other structures;

[0024] Figure 6 Shows Figure 1A three-dimensional diagram of the structure such as the first rotating part.

[0025] The above drawings include the following reference numerals:

[0026] 10. First rotating part; 11. First rotating shaft; 12. Reel; 13. Third guide wheel; 20. Second rotating part; 21. Second rotating shaft; 22. First guide wheel; 23. Second guide wheel; 31. Roller curtain; 32. Pull rope; 33. Auxiliary rope; 40. Coil spring structure; 50. Mounting box; 51. Upper box body; 52. Lower box body; 53. Guide sleeve; 60. Driving part; 71. Frame; 72. First fixed box; 73. Second fixed box; 74. Roller. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figures 1 to 6 As shown, an embodiment of the present invention provides a rolling curtain mechanism, comprising: a first rotating part 10, which is rotatably arranged; a second rotating part 20, which is spaced apart from the first rotating part 10; a rolling curtain 31, wherein a first end of the rolling curtain 31 is connected to the first rotating part 10, and at least a portion of the rolling curtain 31 is wound around the first rotating part 10 along a first winding direction with its first end as a starting point; a pull cord 32, wherein a first end of the pull cord 32 is located on the second rotating part 20, and at least a portion of the pull cord 32 is wound around the second rotating part 20 along a second winding direction with its first end as a starting point, and a second end of the pull cord 32 is connected to a second end of the rolling curtain 31 The auxiliary rope 33 is connected, wherein the second winding direction and the first winding direction are opposite in rotation; the auxiliary rope 33, the first end of the auxiliary rope 33 is connected to the first rotating part 10, a part of the auxiliary rope 33 is wound around the first rotating part 10 with its first end as the starting point along the second winding direction, the second end of the auxiliary rope 33 is located on the second rotating part 20, and a part of the auxiliary rope 33 is wound around the second rotating part 20 with its second end as the starting point along the first winding direction; wherein the first end of the pull rope 32 and the second end of the auxiliary rope 33 are respectively connected to the second rotating part 20; or, the first end of the pull rope 32 and the second end of the auxiliary rope 33 are connected.

[0029] This solution limits the winding method and connection method of the rolling curtain 31, the pull rope 32 and the auxiliary rope 33, so that the rolling curtain 31, the pull rope 32 and the auxiliary rope 33 are mutually related when they are in motion or under tension. In this way, when the rolling curtain 31 is unfolded, the movement of the auxiliary rope 33 will generate tension on the pull rope 32 and the rolling curtain 31, thereby playing a role in assisting the unfolding of the rolling curtain 31, so that the rolling curtain 31 unfolds smoothly. In addition, when the rolling curtain 31 is in the unfolded state, if an external force (such as an accidental touch by a child) pulls the rolling curtain 31 in a direction away from the second rotating part 20, due to the existence of the auxiliary rope 33, a pulling force will be applied to the rolling curtain 31 to prevent the external force from pulling the rolling curtain 31. Therefore, the auxiliary rope 33 also has a locking effect on the rolling curtain 31, so that the rolling curtain 31 remains in the unfolded state.

[0030] Among them, the auxiliary rope 33 and the pull rope 32 in this scheme can be different ropes, that is, the auxiliary rope 33 and the pull rope 32 are respectively wound on the second rotating part 20, and the auxiliary rope 33 and the pull rope 32 are not directly connected; or, the end of the auxiliary rope 33 located on the second rotating part 20 and the end of the pull rope 32 located on the second rotating part 20 are connected together, that is, the auxiliary rope 33 and the pull rope 32 form a rope, which can also achieve the above-mentioned effect.

[0031] In this solution, the relationship between the rolling curtain 31, the pull rope 32 and the auxiliary rope 33 can also be understood as forming a ring-shaped area around them, and the first rotating part 10 drives the second rotating part 20 to rotate through the auxiliary rope 33 or the rolling curtain 31 when rotating. The first rotating part 10 and the second rotating part 20 are located in the ring-shaped area. Since the rolling curtain 31, the pull rope 32 and the auxiliary rope 33 form a ring-shaped area around them, the three will be related to each other when they are moving or under tension.

[0032] The annular area can be understood as the area formed by the outer contours of the roller blind 31, the pull cord 32 and the auxiliary cord 33. For example, the roller blind 31, the pull cord 32 and the auxiliary cord 33 are connected end to end in sequence; or, the roller blind 31, the pull cord 32 and the auxiliary cord 33 are not connected end to end, and a part of the roller blind 31, the pull cord 32 or the auxiliary cord 33 can be respectively wound on the first rotating part 10 or the second rotating part 20, and this arrangement can also be understood as an annular area. In this solution, the pull cord 32 and the auxiliary cord 33 can be two unconnected cords, or they can be connected end to end to form a single cord.

[0033] The pull rope 32 can be wound around the second rotating part 20, and the auxiliary rope 33 can be wound around the first rotating part 10 or the second rotating part 20. When the first rotating part 10 rotates forward, the rolling curtain is unfolded, and the auxiliary rope 33 drives the second rotating part 20 to rotate; when the first rotating part 10 rotates backward, the rolling curtain 31 is rolled up, and the rolling curtain 31 drives the second rotating part 20 to rotate.

[0034] With this solution, when the first rotating part 10 rotates, the second rotating part 20 is synchronously rotated through the transmission of the auxiliary rope 33 or the rolling curtain 31, and the rolling curtain 31 and the pull rope 32 are wound or unfolded by changing the rotation direction, so that the air outlet of the air conditioner can be opened or closed. Through the cooperation of the pull rope 32 and the auxiliary rope 33, the rolling curtain 31 can be subjected to tension during operation and the value of the tension is relatively stable, which ensures that the rolling curtain 31 is smoothly rolled or unfolded, and has a good flatness after unfolding. Moreover, with this solution, only one driving part is needed to realize operation, and there is no need to set driving parts for the two rotating parts respectively, which simplifies the structure and reduces the cost. The auxiliary rope 33 can reduce the interference of other structures affecting the operation of the rolling curtain 31.

[0035] like Figure 1 As shown, the first rotating part 10 rotates clockwise to unfold the roller blind 31, and the roller blind 31 stretches under the tension of the pull cord 32, wherein the pull cord 32 can be applied by a driving mechanism or an elastic structure, or by an auxiliary rope 33. In the absence of the auxiliary rope 33, if the tension of the pull cord 32 is insufficient due to structural jamming, or if a force opposite to the tension of the pull cord 32 is applied to the roller blind 31 due to human error, the roller blind 31 cannot be smoothly unfolded, and may be piled up or wrinkled. Due to the presence of the auxiliary rope 33, the auxiliary rope 33 moves with the rotation of the first rotating part 10, and the auxiliary rope 33 applies a clockwise rotation force to the second rotating part 20, thereby applying an auxiliary tension to the pull cord 32, thereby avoiding the above-mentioned insufficient tension of the pull cord 32, improving the anti-interference ability, and allowing the roller blind 31 to be smoothly unfolded.

[0036] Furthermore, due to the existence of the auxiliary rope 33, after the rolling curtain 31 is unfolded, the auxiliary rope 33 can always maintain tension on the second rotating part 20 and the pull rope 32, or the auxiliary rope 33 generates tension when a force is applied to the rolling curtain 31 in the direction of the first rotating part 10. The tension of the auxiliary rope 33 prevents the rolling curtain 31 from moving toward the first rotating part 10, so that the rolling curtain 31 remains in the unfolded state. Therefore, the auxiliary rope 33 also has the function of locking the rolling curtain 31 when the rolling curtain 31 is acted upon by an external force.

[0037] In this embodiment, the rolling shutter mechanism further includes: a coil spring structure 40, which cooperates with the second rotating part 20 to apply torque to the second rotating part 20. The direction of the torque is the direction in which the pull rope 32 is wound around the second rotating part 20. The direction of the torque applied by the coil spring structure 40 to the second rotating part 20 is the same as the direction of the torque applied by the auxiliary rope 33 to the second rotating part 20. Further, the coil spring structure 40 is a constant force coil spring structure, so that the tension applied by the constant force coil spring structure to the pull rope 32 is constant, that is, the tension of the pull rope 32 on the rolling shutter 31 is constant, and the tension will not change due to the moving position of the rolling shutter 31, so that the rolling shutter 31 maintains flatness and moves smoothly.

[0038] In this embodiment, the second rotating part 20 includes: a second rotating shaft 21, a coil spring structure 40 and the second rotating shaft 21 cooperate; a first wire wheel 22, which is sleeved on the second rotating shaft 21, and the pull rope 32 cooperates with the first wire wheel 22; a second wire wheel 23, which is sleeved on the second rotating shaft 21, and the auxiliary rope 33 cooperates with the second wire wheel 23. In this way, the pull rope 32 is wound and driven by the first wire wheel 22, and the auxiliary rope 33 is wound and driven by the second wire wheel 23, so that the pull rope 32 and the auxiliary rope 33 are prevented from being scattered.

[0039] In this embodiment, the first wire pulley 22 has an annular groove for accommodating the pull rope 32, and the second wire pulley 23 has an annular groove for accommodating the auxiliary rope 33. The rolling mechanism further includes: an installation box 50, the coil spring structure 40 is located in the installation box 50, and the second rotating shaft 21 passes through the installation box 50. The annular groove is provided to facilitate accommodating the pull rope 32 and the auxiliary rope 33. There are two pull ropes 32 and two first wire pulleys, and the two pull ropes 32 and the two first wire pulleys 22 are matched one by one, and the installation box 50 is located between the two first wire pulleys 22.

[0040] Specifically, the first end of the pull rope 32 is fixedly connected to the first guide wheel 22, and at least a portion of the pull rope 32 is wound around the annular groove of the first guide wheel 22 along the second winding direction with the first end of the pull rope 32 as the starting point. The second end of the auxiliary rope 33 is fixedly connected to the second guide wheel 23, and a portion of the auxiliary rope 33 is wound around the annular groove of the second guide wheel 23 along the first winding direction with the second end of the auxiliary rope 33 as the starting point.

[0041] In this embodiment, the installation box 50 includes an upper box body 51, a lower box body 52 and a guide sleeve 53. The upper box body 51 and the lower box body 52 are detachably connected. The coil spring structure 40 and the guide sleeve 53 are both located in the cavity between the upper box body 51 and the lower box body 52, and the second rotating shaft 21 passes through the guide sleeve 53. The installation box 50 is set as a detachable structure to facilitate the arrangement and installation of various components. The guide sleeve 53 can be provided to support the second rotating shaft 21 and reduce the rotation resistance. The guide sleeve 53 can also be understood as a bearing.

[0042] The second rotating shaft 21 has a first limiting surface and a second limiting surface, the coil spring structure 40 cooperates with the first limiting surface, the first wire wheel 22 cooperates with the second limiting surface to achieve circumferential limiting, and the second wire wheel 23 cooperates with the second limiting surface to achieve circumferential limiting. In this way, the coil spring structure 40, the first wire wheel 22, and the second wire wheel 23 respectively limit the circumferential position of the second rotating shaft 21.

[0043] Optionally, the rolling curtain mechanism further comprises a guiding device, which cooperates with the auxiliary rope 33 and the pull rope 32 to guide the auxiliary rope 33 and the pull rope 32. In this way, the moving path of the auxiliary rope 33 or the pull rope 32 can be guided to avoid scattering or interference.

[0044] Optionally, the guide device includes a plurality of rotatable rollers 74, and the auxiliary rope 33 and the pull rope 32 are respectively matched with at least one roller 74. The auxiliary rope 33 and the pull rope 32 are limited and guided by the rollers 74. Specifically, the auxiliary rope 33 or the pull rope 32 is respectively passed around at least two rollers 74 to play a role of limiting and guiding to avoid derailment.

[0045] In this embodiment, the first rotating part 10 includes: a first rotating shaft 11, which is rotatably arranged; a reel 12, which is sleeved on the first rotating shaft 11, and the rolling curtain 31 is connected to the reel 12; a third wire pulley 13, which is sleeved on the first rotating shaft 11, and the auxiliary rope 33 cooperates with the third wire pulley 13. The first rotating shaft 11 drives the reel 12 to rotate, and the rolling curtain 31 is rolled up and unfolded through the reel 12. The auxiliary rope 33 is rolled up or unfolded by the rotation of the third wire pulley 13.

[0046] Specifically, the first end of the rolling curtain 31 is fixedly connected to the first rotating shaft 11, and at least a portion of the rolling curtain 31 is wound around the first rotating shaft 11 along a first winding direction with the first end as the starting point. The first end of the auxiliary rope 33 is fixedly connected to the third wire pulley 13, and a portion of the auxiliary rope 33 is wound around the annular groove of the third wire pulley 13 along a second winding direction with the first end as the starting point.

[0047] In this embodiment, the first rotating shaft 11 has a third limiting surface and a fourth limiting surface, the winding drum 12 is limitedly matched with the third limiting surface, and the third wire wheel 13 is matched with the fourth limiting surface. In this way, the winding drum 12 and the third wire wheel 13 are respectively limited in the circumferential direction with the first rotating shaft 11.

[0048] In this embodiment, the third wire pulley 13 has an annular groove for accommodating the auxiliary rope 33, and the rolling mechanism further includes a driving unit 60, which is drivingly connected to the first rotating shaft 11. The auxiliary rope 33 can be limited by the annular groove. The driving unit 60 is used to drive the first rotating shaft 11 to rotate. Specifically, the driving unit includes a motor and a gear box.

[0049] Furthermore, the rolling curtain mechanism also includes: a frame 71, the frame 71 has an air outlet, and the rolling curtain 31 is used to cover or avoid the air outlet; a first fixed box 72, which is arranged at one end of the frame 71, and the first rotating part 10 is arranged in the first fixed box 72; a second fixed box 73, which is arranged at the other end of the frame 71, and the second rotating part 20 is arranged in the second fixed box 73. Through the above arrangement, it is convenient to arrange and connect the various components. The rolling curtain 31 avoids the air outlet when rolled up, and the air outlet is opened; the rolling curtain 31 covers the air outlet when unfolded, and the air outlet is closed. Specifically, the rolling curtain 31 has a winding position wound on the first rotating part 10 and an unfolding position unfolded between the first rotating part 10 and the second rotating part 20. Covering or avoiding the air outlet is achieved by switching the position of the rolling curtain 31.

[0050] In the present application, one end of the pull cord 32 is connected to the second rotating part 20, and the other end of the pull cord 32 is connected to the other end of the roller blind 31. The connection here means that as long as the two parts have a matching relationship, they are called connected. Optionally, in another embodiment not shown in the figure, the pull cord 32 is connected to the auxiliary rope 33, and the pull cord 32 and the auxiliary rope 33 form a main rope, and the main rope is not fixedly connected to the second rotating part 20, but the main rope is looped on the second rotating part 20 or wrapped around the second rotating part 20.

[0051] Another embodiment of the present invention provides an air conditioner, which includes the above-mentioned rolling curtain mechanism. With this solution, when the first rotating part 10 rotates, the second rotating part 20 rotates synchronously through the transmission of the auxiliary rope 33 or the rolling curtain 31, and the rolling or unfolding of the rolling curtain 31 and the pull rope 32 is realized by changing the rotation direction, so that the air outlet of the air conditioner can be opened or closed. Through the cooperation of the pull rope 32 and the auxiliary rope 33, the rolling curtain 31 can be subjected to tension during operation and the value of the tension is relatively stable, which ensures that the rolling curtain 31 is smoothly rolled or unfolded, and has a good flatness after unfolding.

[0052] In this solution, the roller blind 31 is fully unfolded and has a good flatness when the air conditioner is not in operation. The flatness is achieved by the coil spring structure 40 on the right. When the stepper motor is self-locked, the drum 12 is fixed and cannot rotate. The coil spring structure 40 on the right applies a clockwise rotation force to the second rotating shaft 21. The second rotating shaft 21 drives the first wire wheel 22 to rotate clockwise, so that the end of the roller blind 31 with the rope maintains a constant force transmitted by the coil spring structure 40, so that the roller blind 31 of the air conditioner can still have a good flatness when the air conditioner is not in operation; and in the operating state, there is a moderate pulling force on the right side of the roller blind 31, which facilitates the smooth operation of the roller blind 31, and the roller blind 31 is also very flat when wound on the drum, which is convenient for the next operation.

[0053] When the air conditioner is running, the roller blind 31 needs to open the air inlet and outlet, the stepper motor rotates forward, and drives the roller 12 to rotate counterclockwise through the gear assembly, pulling the roller blind 31 from one side to the other side. When the air inlet and outlet are fully opened, the stepper motor stops moving.

[0054] When the air conditioner ends its operation, the stepper motor rotates in the reverse direction and drives the first rotating shaft 11 to rotate through the gear assembly, while driving the reel 12 to rotate. The roller blind 31 is soft and has no thrust. At this time, the roller blind 31 is pulled to move by the coil spring structure 40 on the other side and is wound around the first wire wheel 22, so that the air inlet and outlet are completely closed, and the appearance of opening and closing is repeated as described above.

[0055] The auxiliary rope 33 is wound around the drum 12 in opposite directions to the rolling curtain 31. When the stepper motor rotates to drive the rolling curtain 31 on the drum 12 to move, the auxiliary rope 33 moves in the opposite direction. The rolling curtain 31 and the auxiliary rope 33 form a closed loop between the two rotation centers of the first rotating shaft 11 and the second rotating shaft 21. Even if the rolling curtain 31 is affected by external forces, it will not deviate from the movement trajectory. If there is no auxiliary rope 33 to participate in forming a closed loop, only the rolling curtain 31 is connected to the two rotation centers of the first rotating shaft and the second rotating shaft 21. If the pulling force of the external force on the rolling curtain 31 exceeds the pulling force of the coil spring structure 40, the rolling curtain 31 will be pulled out of the movement trajectory.

[0056] The stepper motor rotates forward and drives the first rotating shaft 11 to rotate clockwise through the gear assembly, and drives the reel 12 to rotate at the same time. The rolling curtain 31 is soft and has no thrust. At this time, the rolling curtain 31 is pulled to move by the coil spring structure 40 on the other side. If the pulling force of the rolling curtain 31 is greater than the tension of the constant force coil spring, the rolling curtain 31 cannot move according to the tension of the coil spring structure 40. The first rotating shaft 11 drives the third wire wheel 13 to rotate clockwise at the same time. The third wire wheel 13 rotates clockwise to wind the auxiliary rope 33 to generate tension. The tension is transmitted to the second wire wheel 23 through the auxiliary rope 33, so that the second wire wheel 23 rotates clockwise, and then the first wire wheel 22 is driven to rotate clockwise through the second rotating shaft 21. At this time, the force on one end of the rope of the rolling curtain 31 is the force of the coil spring structure 40 plus the tension of the auxiliary rope 33, which greatly improves the anti-interference ability of the rolling curtain 31.

[0057] By adopting this solution, the air inlet or outlet can be completely closed when the air conditioner is not in operation, preventing foreign matter from entering the interior of the air conditioner and affecting its operating state and service life. During operation, the appearance and structure of the air conditioner will not change significantly, and there will be no structure similar to an air guide plate on the appearance of the air conditioner to affect the overall appearance. The interference of external objects is reduced, and the stability of the opening and closing mechanism at the air inlet is improved.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rolling shutter mechanism, characterized in that: include: A first rotating part (10) is rotatably arranged; a second rotating part (20) spaced apart from the first rotating part (10); A rolling curtain (31), wherein a first end of the rolling curtain (31) is connected to the first rotating part (10), and at least a portion of the rolling curtain (31) is wound around the first rotating part (10) along a first winding direction with the first end of the rolling curtain as a starting point; A pull cord (32), wherein the first end of the pull cord (32) is located on the second rotating part (20), at least a portion of the pull cord (32) is wound around the second rotating part (20) along a second winding direction starting from the first end of the pull cord (32), and the second end of the pull cord (32) is connected to the second end of the rolling curtain (31), wherein the second winding direction and the first winding direction have opposite rotation directions; an auxiliary rope (33), wherein a first end of the auxiliary rope (33) is connected to the first rotating part (10), a part of the auxiliary rope (33) is wound around the first rotating part (10) along the second winding direction with the first end of the auxiliary rope as a starting point, a second end of the auxiliary rope (33) is located on the second rotating part (20), and a part of the auxiliary rope (33) is wound around the second rotating part (20) along the first winding direction with the second end of the auxiliary rope as a starting point; Wherein, the first end of the pull rope (32) and the second end of the auxiliary rope (33) are respectively connected to the second rotating part (20); or, the first end of the pull rope (32) and the second end of the auxiliary rope (33) are connected.

2. The rolling shutter mechanism according to claim 1, characterized in that: The rolling shutter mechanism also includes: A coil spring structure (40) cooperates with the second rotating part (20) to apply a constant torque to the second rotating part (20).

3. The rolling shutter mechanism according to claim 2, characterized in that: The second rotating part (20) comprises: A second rotating shaft (21), wherein the coil spring structure (40) cooperates with the second rotating shaft (21); A first guide wheel (22) is sleeved on the second rotating shaft (21), and the pull rope (32) cooperates with the first guide wheel (22); The second guide wheel (23) is sleeved on the second rotating shaft (21), and the auxiliary rope (33) cooperates with the second guide wheel (23).

4. The rolling shutter mechanism according to claim 3, characterized in that: The first guide wheel (22) has an annular groove for accommodating the pull rope (32), the second guide wheel (23) has an annular groove for accommodating the auxiliary rope (33), and the rolling curtain mechanism further includes: An installation box (50), the coil spring structure (40) is located in the installation box (50), and the second rotating shaft (21) passes through the installation box (50).

5. The rolling shutter mechanism according to claim 4, characterized in that: The installation box (50) comprises an upper box body (51), a lower box body (52) and a guide sleeve (53); the upper box body (51) and the lower box body (52) are detachably connected; the coil spring structure (40) and the guide sleeve (53) are both located in a cavity between the upper box body (51) and the lower box body (52); and the second rotating shaft (21) passes through the guide sleeve (53).

6. The rolling shutter mechanism according to claim 3, characterized in that: The second rotating shaft (21) has a first limiting surface and a second limiting surface, the coil spring structure (40) cooperates with the first limiting surface, the first wire wheel (22) cooperates with the second limiting surface to achieve circumferential limiting, and the second wire wheel (23) cooperates with the second limiting surface to achieve circumferential limiting.

7. The rolling shutter mechanism according to claim 1, characterized in that: The first rotating part (10) comprises: A first rotating shaft (11) is rotatably arranged; A roller (12) is sleeved on the first rotating shaft (11), and the roller blind (31) is connected to the roller (12); The third guide wheel (13) is sleeved on the first rotating shaft (11), and the auxiliary rope (33) cooperates with the third guide wheel (13).

8. The rolling shutter mechanism according to claim 7, characterized in that: The first rotating shaft (11) has a third limiting surface and a fourth limiting surface, the winding drum (12) is in limiting cooperation with the third limiting surface, and the third guide wheel (13) is in cooperation with the fourth limiting surface.

9. The rolling shutter mechanism according to claim 7, characterized in that: The third wire wheel (13) has an annular groove for accommodating the auxiliary rope (33), and the rolling curtain mechanism also includes a driving part (60), and the driving part (60) is drivingly connected to the first rotating shaft (11).

10. The rolling shutter mechanism according to claim 1, characterized in that: The rolling shutter mechanism also includes: A frame (71), wherein the frame (71) has an air outlet, and the rolling curtain (31) is used to cover or avoid the air outlet; A first fixed box (72) is arranged at one end of the frame (71), and the first rotating part (10) is arranged in the first fixed box (72); The second fixed box (73) is arranged at the other end of the frame (71), and the second rotating part (20) is arranged in the second fixed box (73).

11. An air conditioner, characterized in that: The air conditioner comprises the rolling shutter mechanism according to any one of claims 1 to 10.

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