Magnetic transmission curtain box and curtain

Abstract

The utility model relates to the technical field of curtain related equipment, in particular to a magnetic transmission curtain box and a curtain. The magnetic transmission curtain box comprises a bearing seat, a first magnetic wheel, a second magnetic wheel and an energy storage part, the first magnetic wheel and the second magnetic wheel are movably connected to the bearing seat, the first magnetic wheel and the second magnetic wheel are arranged at an interval and are in mutual actuating fit through magnetic force, and the first magnetic wheel is used for winding a first pull rope; the energy storage part is connected to the bearing seat, connected with the second magnetic wheel and used for storing or releasing energy in the rotating process of the second magnetic wheel. According to the magnetic transmission curtain box, force transmission can be achieved under the condition that the first magnetic wheel does not make contact with the second magnetic wheel, so that friction force is not generated, and the service life is prolonged; moreover, the magnetic transmission curtain box realizes opening and closing of the curtain by arranging the energy storage piece, so that a lifting rope exposed out of the curtain is not arranged, and the safety of the curtain box is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain-related equipment, and in particular to a magnetic transmission curtain box and a curtain. Background Art

[0002] With the increasing improvement of people's material living standards, home decoration has become another new consumer fashion in today's society. Among them, there are many styles of curtains: blinds, pleated curtains, Roman blinds, etc., which are mainly installed in doors and windows of homes to block sunlight and achieve the function of decoration.

[0003] However, the prior art usually uses gear meshing to achieve force transmission, which leads to problems such as excessive friction, short service life and high maintenance cost. In addition, the prior art generally has a lifting rope exposed on the curtain, which makes it easy for young children to get strangled when playing, posing a serious threat to their safety. Utility Model Content

[0004] The utility model aims to provide a magnetic transmission curtain box and curtain, which can utilize the characteristics of opposites attracting and likes repelling of magnetic wheels, so that the magnetic transmission curtain box can realize force transmission when the first moving magnetic wheel and the second magnetic wheel are not in contact; because the magnetic transmission mode is a non-contact transmission mode, no friction is generated, the stability is good, and maintenance is free, which greatly reduces the later use cost and increases the service life; and the magnetic transmission rotating box realizes the opening and closing of the curtain by arranging an energy storage part, so that it is possible to not arranging a lifting rope exposed to the curtain to ensure its safety.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a magnetic transmission curtain box, comprising:

[0007] Bearing seat;

[0008] A first magnetic wheel, the first magnetic wheel is movably connected to the bearing seat, and the first magnetic wheel is used to wind the first pull rope;

[0009] A second magnetic wheel, the second magnetic wheel is movably connected to the bearing seat, the second magnetic wheel and the first magnetic wheel are spaced apart and actuated to cooperate with each other through magnetic force; and

[0010] An energy storage component is connected to the bearing seat and is connected to the second magnetic wheel, and is used to store or release energy during the rotation of the second magnetic wheel.

[0011] In an optional embodiment, the magnetic transmission curtain box further includes a first pull cord, one end of which is connected to the first magnetic wheel, and the other end of the first pull cord can be extended relative to the first magnetic wheel.

[0012] In an optional embodiment, the magnetic transmission curtain box also includes a third magnetic wheel, which is movably connected to the supporting seat, and the third magnetic wheel is spaced apart from the first magnetic wheel and is actuated and cooperated with each other through magnetic force, and the third magnetic wheel is used to wind the second pull rope.

[0013] In an optional embodiment, the magnetic transmission curtain box further includes a second pull cord, the second pull cord is wound around the third magnetic wheel, and one end of the second pull cord can be extended relative to the third magnetic wheel.

[0014] In an optional embodiment, the first magnetic wheel, the second magnetic wheel and the third magnetic wheel are evenly spaced along a preset straight line;

[0015] Among them, the axis of the first magnetic wheel, the axis of the second magnetic wheel and the axis of the third magnetic wheel are all perpendicular to the preset straight line.

[0016] In an optional embodiment, the energy storage component includes a coil spring and a pulley, the pulley is movably connected to the bearing seat, the pulley is connected to one end of the coil spring, and the other end of the coil spring is connected to the second magnetic wheel.

[0017] In an optional embodiment, the axis of the second magnetic wheel and the axis of the pulley are parallel to each other.

[0018] In an optional embodiment, the coil spring is in an S-shaped structure between the second magnetic wheel and the pulley.

[0019] In a second aspect, the utility model provides a curtain, comprising blades and the aforementioned magnetic transmission curtain box, wherein the number of the blades is multiple and all are connected to a first pull cord.

[0020] In an optional embodiment, the curtain further includes a main body, and the magnetic transmission curtain box is arranged in the main body.

[0021] The beneficial effects of the embodiments of the utility model include:

[0022] The magnetic transmission curtain box includes a bearing seat, a first magnetic wheel, a second magnetic wheel and an energy storage component; the first magnetic wheel is movably connected to the bearing seat, and the first magnetic wheel is used to wind the first pull rope; the second magnetic wheel is movably connected to the bearing seat, and the second magnetic wheel and the first magnetic wheel are arranged at intervals and mutually actuated and coordinated by magnetic force; thereby utilizing the characteristics of the magnetic wheels that opposites attract and likes repel, the magnetic transmission curtain box can achieve force transmission without contact between the first moving magnetic wheel and the second magnetic wheel; since the magnetic transmission mode is a non-contact transmission mode, no friction is generated, the stability is good, and maintenance is free, which greatly reduces the cost of later use and increases the service life. The energy storage component is connected to the bearing seat, and the energy storage component is connected to the second magnetic wheel, and is used to store or release energy during the rotation of the second magnetic wheel, so that the curtain can be opened and closed through the energy storage component, so that the lifting rope exposed to the curtain can be set to ensure its safety.

[0023] The curtain comprises blades and the magnetic transmission curtain box, wherein the number of the blades is multiple and all of them are connected to the first pull rope. The curtain has all the beneficial effects of the magnetic transmission curtain box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of the curtain provided by the embodiment of the utility model;

[0026] Figure 2 An exploded schematic diagram of a magnetic transmission curtain box provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of the structure of a magnetic transmission curtain box provided in an embodiment of the utility model;

[0028] Figure 4 This is a schematic structural diagram of a second magnetic wheel, a coil spring and a pulley provided in other embodiments of the utility model.

[0029] Icons: 100-curtain; 110-magnetic transmission curtain box; 111-supporting seat; 112-first magnetic wheel; 113-second magnetic wheel; 114-coil spring; 115-first pull rope; 116-third magnetic wheel; 117-second pull rope; 118-pulley; 120-main body; 121-upper rail; 122-lower rail; 130-blade; 131-through hole; 140-fixed pulley. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] With the improvement of people's living standards, home decoration has become another new consumer fashion in today's society. Among them, there are many styles of curtains: blinds, pleated curtains, Roman blinds, etc. They are mainly installed in doors and windows of homes to achieve the functions of blocking sunlight and decoration, and according to the needs of different consumers. However, the existing technology usually uses gear meshing to achieve force transmission, which leads to problems such as excessive friction, short service life and high maintenance cost.

[0037] Based on this, please refer to Figure 1 , Figure 1 A structural schematic diagram of a curtain 100 provided in an embodiment of the utility model; the utility model provides a curtain 100, which includes a magnetic transmission curtain box 110 and blades 130, and the number of blades 130 is multiple, and all are connected to the first pull rope 115.

[0038] It should be noted that, in the present embodiment, each blade 130 is provided with two through holes 131, and the first pull rope 115 and the second pull rope 117 are respectively passed through the corresponding through holes 131 and connected to the blade 130, wherein the two through holes 131 are respectively located at both ends of the blade 130, thereby making the blade 130 more stable and the opening control of the curtain 100 more convenient and stable.

[0039] Furthermore, the curtain 100 also includes a main body 120 , and the main body 120 includes an upper rail 121 and a lower rail 122 . The magnetic transmission curtain box 110 is arranged in the upper rail 121 , and the first pull cord 115 and the second pull cord 117 pass through and are connected to the lower rail 122 .

[0040] It can be understood that in order to enable the first pull rope 115 and the second pull rope 117 to pass through the corresponding through holes 131 and connect with the blades 130 and the lower rail 122 respectively, so that the blades 130 are more stable and the opening control of the curtain 100 is more convenient and stable, the present embodiment is also provided with a fixed pulley 140, which is arranged in the upper rail 121, and the second pull rope 117 bypasses the fixed pulley 140 and is connected to the lower rail 122.

[0041] Please refer to Figure 2 and Figure 3The magnetic transmission curtain box 110 will be described in detail below:

[0042] Figure 2 An exploded schematic diagram of a magnetic transmission curtain box 110 provided in an embodiment of the utility model; Figure 3 A schematic diagram of the structure of a magnetic transmission curtain box 110 provided in an embodiment of the utility model. The magnetic transmission curtain box 110 includes a bearing seat 111, a first magnetic wheel 112, a second magnetic wheel 113 and an energy storage member; the first magnetic wheel 112 is movably connected to the bearing seat 111, and the first magnetic wheel 112 is used to wind a first pull rope 115; the second magnetic wheel 113 is movably connected to the bearing seat 111, and the second magnetic wheel 113 and the first magnetic wheel 112 are spaced apart and mutually actuated and matched by magnetic force; the energy storage member is connected to the bearing seat 111, and the energy storage member is connected to the second magnetic wheel 113, and is used to store or release energy during the rotation of the second magnetic wheel 113.

[0043] Specifically, when the curtain 100 is opened, the first pull cord 115 is pulled to rotate the first magnetic wheel 112 counterclockwise. During the rotation of the first magnetic wheel 112, the magnetic pole changes. Since the magnetic wheels have the property that opposite poles attract and like poles repel, the magnetic force of the first magnetic wheel 112 is transferred to the second magnetic wheel 113, causing the second magnetic wheel 113 to rotate clockwise, thereby realizing the transmission of magnetic force.

[0044] It should be noted that the curtain 100 reaches a force balance under the influence of multiple forces such as its own gravity, the friction force generated between the first pull rope 115 and the first magnetic wheel 112 and the blade 130, and the magnetic force generated between the first magnetic wheel 112 and the second magnetic wheel 113, so that the curtain 100 is in a stopped state when there is no external force. It can be understood that if the gravity of the curtain 100 changes, the magnetic force of the first magnetic wheel 112 and the second magnetic wheel 113 can be adjusted to make the curtain 100 stop again, for example, by adjusting the grade and thickness of the neodymium magnets in the magnetic wheels.

[0045] The working principle of the magnetic transmission curtain box 110 of the curtain 100 is as follows:

[0046] When opening the curtain 100, the first pull cord 115 is pulled, the force balance of the curtain 100 is broken, the first magnetic wheel 112 rotates counterclockwise under the drive of the first pull cord 115, and the second magnetic wheel 113 rotates clockwise under the influence of the magnetic force. At this time, when the second magnetic wheel 113 rotates clockwise, the energy storage component stores the energy generated by the magnetic force. As the first magnetic wheel 112 rotates counterclockwise, part of the first pull cord 115 is separated from the first magnetic wheel 112, so that the curtain 100 is opened.

[0047] When the curtain 100 needs to be closed, the opened curtain 100 is pulled upward, and the first pull cord 115 is subjected to an upward force, which causes the force balance of the curtain 100 to be broken, and the energy in the energy storage member is released, so that the second magnetic wheel 113 rotates counterclockwise. The magnetic force on the second magnetic wheel 113 is transmitted to the first magnetic wheel 112, so that the first magnetic wheel 112 rotates clockwise, thereby winding the first pull cord 115, so that the curtain 100 is closed.

[0048] Therefore, the magnetic transmission curtain box 110 utilizes the characteristics of opposites attracting and likes repelling of magnetic wheels, so that the magnetic transmission curtain box 110 can achieve force transmission without contact between the first moving magnetic wheel 112 and the second magnetic wheel 113; since the magnetic transmission method is a non-contact transmission mode, no friction is generated, the stability is good, and maintenance is required, which greatly reduces the later use cost and increases the service life. In addition, the magnetic transmission curtain box 110 can realize the opening and closing of the curtain through the energy storage component, so that it is possible to not set a lifting rope exposed to the curtain 100 to ensure its safety.

[0049] In combination with the above content, the magnetic transmission curtain box 110 also includes a first pull rope 115, one end of the first pull rope 115 is connected to the first magnetic wheel 112, and the other end of the first pull rope 115 can be extended relative to the first magnetic wheel 112. Therefore, by pulling downward the end of the first pull rope 115 that is extended relative to the first magnetic wheel 112, the curtain 100 can be opened. Since one end of the first pull rope 115 is connected to the first magnetic wheel 112, the first pull rope 115 is prevented from being separated from the first magnetic wheel 112, thereby ensuring that the curtain 100 can be closed.

[0050] Furthermore, in the present embodiment, the magnetic transmission curtain box 110 also includes a third magnetic wheel 116 and a second pull rope 117. The third magnetic wheel 116 is movably connected to the supporting seat 111. The third magnetic wheel 116 and the first magnetic wheel 112 are spaced apart and actuated to cooperate with each other through magnetic force. The third magnetic wheel 116 is used to wind the second pull rope 117; the second pull rope 117 is wound around the third magnetic wheel 116, and one end of the second pull rope 117 can be extended relative to the third magnetic wheel 116.

[0051] Specifically, when opening the curtain 100, the second pull cord 117 can be pulled relative to the end of the third magnetic wheel 116 extending therefrom, so that the third magnetic wheel 116 rotates clockwise, and the magnetic force of the third magnetic wheel 116 is transmitted to the first magnetic wheel 112, causing the first magnetic wheel 112 to rotate counterclockwise, so that part of the first pull cord 115 is separated from the first magnetic wheel 112, thereby opening the curtain 100. At this time, when the first magnetic wheel 112 rotates, the magnetic force of the first magnetic wheel 112 is transmitted to the second magnetic wheel 113, so that the energy storage element and the second magnetic wheel 113 store energy when rotating clockwise.

[0052] In this embodiment, by pulling the end of the first pull rope 115 extending relative to the first magnetic wheel 112, the magnetic force of the first magnetic wheel 112 is simultaneously transmitted to the second magnetic wheel 113 and the third magnetic wheel 116, so that the second magnetic wheel 113 and the third magnetic wheel 116 rotate clockwise, and then part of the second pull rope 117 is disengaged from the third magnetic wheel 116, so that the curtain 100 is closed, and the energy storage member stores energy when the second magnetic wheel 113 rotates clockwise.

[0053] In conjunction with the above settings, please refer to Figure 1 In this embodiment, the curtain 100 further includes a main body 120, and the main body 120 includes an upper rail 121 and a lower rail 122. The magnetic transmission curtain box 110 is arranged in the upper rail 121, and the first pull rope 115 and the second pull rope 117 pass through and are connected to the lower rail 122. Thus, the lower rail 122 is pulled downward, so that the first pull rope 115 and the second pull rope 117 are synchronously downward, thereby opening the curtain 100, and the magnetic force of the first magnetic wheel 112 is transmitted to the second magnetic wheel 113, so that the energy storage component stores energy. When the lower rail 122 is lifted upward, the force balance of the curtain 100 is broken, and the energy in the energy storage component is released, so that the second magnetic wheel 113 rotates counterclockwise. Under the influence of the magnetic force, the first magnetic wheel 112 rotates clockwise, and the third magnetic wheel 116 rotates counterclockwise, thereby closing the curtain 100.

[0054] It should be noted that, depending on the position where the external force is applied to the lower rail 122, the switching amplitude of the curtain 100 is also different. For example, when the external force is applied below the first pull cord 115, the portion of the first pull cord 115 that is detached from the first magnetic wheel 112 is greater than the portion of the second pull cord 117 that is detached from the first magnetic wheel 112, thereby making the switching amplitude on the side where the first pull cord 115 is located greater than the switching amplitude on the side where the second pull cord 117 is located.

[0055] For further information, please refer to Figure 3 , the first magnetic wheel 112, the second magnetic wheel 113 and the third magnetic wheel 116 are evenly spaced along the preset straight line; wherein the axis of the first magnetic wheel 112, the axis of the second magnetic wheel 113 and the axis of the third magnetic wheel 116 are all perpendicular to the preset straight line. It should be noted that the extension direction of the preset straight line is parallel to the extension direction of the bearing seat 111.

[0056] Specifically, the first magnetic wheel 112, the second magnetic wheel 113 and the third magnetic wheel 116 are parallel to each other, and the distance between the first magnetic wheel 112 and the second magnetic wheel 113 is the same as the distance between the first magnetic wheel 112 and the third magnetic wheel 116. Thus, the magnetic forces between the first magnetic wheel 112, the second magnetic wheel 113 and the third magnetic wheel 116 tend to be balanced to ensure the opening and closing of the curtain 100.

[0057] For further information, please refer to Figure 2 and Figure 3 The energy storage component includes a coil spring 114 and a pulley 118 . The pulley 118 is movably connected to the bearing seat 111 . The pulley 118 is connected to one end of the coil spring 114 , and the other end of the coil spring 114 is connected to the second magnetic wheel 113 .

[0058] Specifically, when the curtain 100 is opened, the coil spring 114 rotates with the second magnetic wheel 113 due to the rotation of the second magnetic wheel 113, thereby leaving the pulley 118 and winding around the second magnetic wheel 113. In addition, due to the elasticity of the coil spring 114, the coil spring 114 has a tendency to rotate in the opposite direction of the rotation direction of the pulley 118, thereby storing energy. When the curtain 100 is closed, the energy of the coil spring 114 is released, thereby causing the second magnetic wheel 113 to rotate counterclockwise, thereby allowing the magnetic force of the second magnetic wheel 113 to be sequentially transmitted to the first magnetic wheel 112 and the third magnetic wheel 116, thereby closing the curtain 100.

[0059] In combination with the above arrangement, the axis of the second magnetic wheel 113 and the axis of the pulley 118 are parallel to each other. Moreover, in the present embodiment, the coil spring 114 is in an S-shaped structure between the second magnetic wheel 113 and the pulley 118. It can be understood that when storing and releasing energy, the coil spring 114 rotates around the axis of the second magnetic wheel 113 and the axis of the pulley 118 at the same time. Therefore, the axis of the second magnetic wheel 113 and the axis of the pulley 118 are parallel to each other, so as to prevent the coil spring 114 from being stuck when rotating. In the present embodiment, since the coil spring 114 is in an S-shaped structure between the second magnetic wheel 113 and the pulley 118, it can be understood that the second magnetic wheel 113 and the pulley 118 rotate in opposite directions.

[0060] For other embodiments, please refer to Figure 4 , Figure 4 A schematic structural diagram of a second magnetic wheel 113, a coil spring 114 and a pulley 118 provided for other embodiments of the present invention; the coil spring 114 is a linear structure between the first magnetic wheel 112 and the second magnetic wheel 113, so that the rotation direction of the pulley 118 is the same as the rotation direction of the second magnetic wheel 113.

[0061] In summary, the present embodiment provides a curtain 100 including blades 130 and a magnetic transmission curtain box 110 . There are multiple blades 130 , and all of them are connected to the first pull cord 115 .

[0062] The magnetic transmission curtain box 110 includes a bearing seat 111, a first magnetic wheel 112, a second magnetic wheel 113 and an energy storage component; the first magnetic wheel 112 is movably connected to the bearing seat 111, and the first magnetic wheel 112 is used to wind the first pull rope 115; the second magnetic wheel 113 is movably connected to the bearing seat 111, and the second magnetic wheel 113 and the first magnetic wheel 112 are arranged at intervals and actuated to cooperate with each other through magnetic force; thereby utilizing the characteristics of opposites attracting and likes repelling on the magnetic wheels, the magnetic transmission curtain box 110 can achieve force transmission without contact between the first moving magnetic wheel 112 and the second magnetic wheel 113; since the magnetic transmission method is a non-contact transmission mode, no friction is generated, the stability is good, and maintenance is required, which greatly reduces the later use cost and increases the service life. The energy storage component is connected to the supporting seat 111, and the energy storage component is connected to the second magnetic wheel 113, and is used to store or release energy during the rotation of the second magnetic wheel 113, so that the curtain 100 can be opened and closed through the energy storage component, so that the lifting rope exposed to the curtain 100 can be omitted to ensure its safety.

[0063] The above are only specific embodiments of the present invention and are 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 magnetic transmission curtain box, characterized in that: include: A bearing seat (111); A first magnetic wheel (112), the first magnetic wheel (112) being movably connected to the bearing seat (111), and the first magnetic wheel (112) being used to wind a first pull rope (115); A second magnetic wheel (113), wherein the second magnetic wheel (113) is movably connected to the bearing seat (111), and the second magnetic wheel (113) and the first magnetic wheel (112) are arranged at an interval and are mutually actuated and matched by magnetic force; as well as An energy storage component is connected to the bearing seat (111), and the energy storage component is connected to the second magnetic wheel (113), and is used for storing or releasing energy during the rotation of the second magnetic wheel (113).

2. The magnetic transmission curtain box according to claim 1, characterized in that: The magnetic transmission curtain box (110) further comprises a first pull cord (115), one end of which is connected to the first magnetic wheel (112), and the other end of which is extendable relative to the first magnetic wheel (112).

3. The magnetic transmission curtain box according to claim 2, characterized in that: The magnetic transmission curtain box (110) further comprises a third magnetic wheel (116), wherein the third magnetic wheel (116) is movably connected to the supporting seat (111), the third magnetic wheel (116) and the first magnetic wheel (112) are spaced apart and mutually actuated and cooperated by magnetic force, and the third magnetic wheel (116) is used to wind the second pull rope (117).

4. The magnetic transmission curtain box according to claim 3, characterized in that: The magnetic transmission curtain box (110) further comprises a second pull cord (117), wherein the second pull cord (117) is wound around the third magnetic wheel (116), and one end of the second pull cord (117) can be extended relative to the third magnetic wheel (116).

5. The magnetic transmission curtain box according to claim 3, characterized in that: The first magnetic wheel (112), the second magnetic wheel (113) and the third magnetic wheel (116) are evenly spaced and distributed along a preset straight line; Wherein, the axis of the first magnetic wheel (112), the axis of the second magnetic wheel (113) and the axis of the third magnetic wheel (116) are all perpendicular to the preset straight line.

6. The magnetic transmission curtain box according to claim 2, characterized in that: The energy storage component comprises a coil spring (114) and a pulley (118), wherein the pulley (118) is movably connected to the bearing seat (111), the pulley (118) is connected to one end of the coil spring (114), and the other end of the coil spring (114) is connected to the second magnetic wheel (113).

7. The magnetic transmission curtain box according to claim 6, characterized in that: The axis of the second magnetic wheel (113) and the axis of the pulley (118) are parallel to each other.

8. The magnetic transmission curtain box according to claim 7, characterized in that: The coil spring (114) is in an S-shaped structure between the second magnetic wheel (113) and the pulley (118).

9. A curtain, characterized in that: It comprises blades (130) and a magnetic transmission curtain box (110) as claimed in any one of claims 1 to 8, wherein the number of the blades (130) is plural and all are connected to the first pull rope (115).

10. The curtain according to claim 9, characterized in that: The curtain (100) further comprises a main body (120), and the magnetic transmission curtain box (110) is arranged in the main body (120).

Images