A dynamic magnetic damping device and an adaptive sliding door anti-sway system

Abstract

The present invention relates to a dynamic magnetic damping device and an adaptive sliding door anti-sway system. The dynamic magnetic damping device is used for a sliding door, and the dynamic magnetic damping device comprises a magnetic damping structure and a magnetic attraction member separated from each other. The magnetic damping structure is used to be arranged at the lower part of the sliding door, and the magnetic attraction member is used to be arranged below the magnetic damping structure. When the sliding door switches from a static state to a moving state, the magnetic force between the magnetic damping structure and the magnetic attraction member decreases, and when the sliding door switches from a moving state to a static state, the magnetic force between the magnetic damping structure and the magnetic attraction member increases. The dynamic magnetic damping device can prevent the sliding door from shaking and ensure the stability of the sliding door.

Description

Technical Field

[0001] The invention relates to the technical field of sliding doors, in particular to a dynamic magnetic damping device and an adaptive sliding door anti-sway system. Background Art

[0002] Hanging sliding doors (also known as sliding doors and hanging rail doors) have tracks set on the top of the door leaf, and support the weight of the door leaf to achieve movement by hanging, which is different from general sliding rail doors and becomes a different category. In addition, since there is no track at the bottom of the hanging sliding door to support the movement of the door leaf, the threshold of the hanging sliding door has good passability compared with the general track door; in addition, dust accumulation on the track is generally one of the main blind spots of family hygiene, which is difficult to handle. Hanging sliding doors perfectly avoid this problem. Based on the above advantages, hanging sliding doors have strong market competitive advantages. However, due to the structural properties of the hanging sliding door being fixed at one end of the hanging rail, the hanging sliding door is prone to shaking during use. In the cognition of many users and the marketing intervention of other categories of products, the shaking of the hanging sliding door has formed a certain cognitive association with "unsafety", that is, it is believed that the hanging sliding door is unsafe, which has affected the chance of being selected for the category of hanging sliding doors to a certain extent. For this reason, optimizing the shaking of the hanging sliding door has become the key to changing the competitiveness of the hanging sliding door product.

[0003] Existing solutions include, for example: setting a hidden anti-sway wheel, which is pre-buried in the ground and set at the overlapping part of the door frame when the two doors are closed. The anti-sway wheel will not be exposed when the door leaves are opened and closed, and the anti-sway wheel has a good anti-sway effect on the bottom of the door leaf (avoiding the shaking caused by lateral impact force). However, the hidden attribute of the anti-sway wheel solution brings a negative effect: when the door leaf is in a closed state, since the anti-sway wheel is only set at the overlapping part of the door frame of the two doors, that is, only one anti-sway wheel is set on one side of the door, and the other side is still in a free state, therefore, there is still a problem of large shaking on the free side. When a child hits the door on the free end side, the door will still shake violently, and people will still have a strong illusion of insecurity. Summary of the invention

[0004] In order to solve the above-mentioned problems of the prior art, the present invention provides a dynamic magnetic damping device for a sliding door, wherein the dynamic magnetic damping device comprises a magnetic damping structure and a magnetic attraction component which are spaced apart. The magnetic damping structure is used to be arranged at the lower part of the sliding door, and the magnetic attraction component is used to be arranged below the magnetic damping structure. When the sliding door switches from a static state to a moving state, the magnetic force between the magnetic damping structure and the magnetic attraction component decreases. When the sliding door switches from a moving state to a static state, the magnetic force between the magnetic damping structure and the magnetic attraction component increases.

[0005] Optionally, when the sliding door switches from a stationary state to a moving state, at least part of the magnetic damping structure moves upward to increase the distance between the magnetic attraction component, and when the sliding door switches from a moving state to a stationary state, at least part of the magnetic damping structure moves downward to reduce the distance between the magnetic attraction component.

[0006] Optionally, the magnetic damping structure includes a shell, a track, a magnet and a supporting portion, the shell includes a top wall and side walls connected to each other, the top wall and the side walls define an installation space, the track, the magnet and the supporting portion are all arranged in the installation space, the magnet is connected to the top wall in a liftable manner along the first direction, one end of the track is hinged to the top wall and / or the side wall, the other end of the track is abutted against the lower surface of the magnet, the supporting portion is telescopically arranged on the side wall along the second direction, when the sliding door is switched from a stationary state to a moving state, the supporting portion abuts the track to raise the magnet, wherein the first direction and the second direction are perpendicular.

[0007] Optionally, the magnetic damping structure also includes a telescopic cylinder, which is arranged between the top wall and the magnet. The telescopic cylinder includes a first cylinder and a second cylinder, one end of the first cylinder is connected to the top wall, the other end of the first cylinder is sleeved with one end of the second cylinder, and the other end of the second cylinder is connected to the magnet, a first cavity is formed in the first cylinder, and a second cavity is formed in the second cylinder, and the first cavity and the second cavity can be selectively connected.

[0008] Optionally, the magnetic damping structure further includes a one-way door;

[0009] The one-way door is hinged in the second tube and is used to separate the first cavity and the second cavity, the one-way door is suitable for opening in the direction of the second cavity, and the one-way door is provided with a through hole allowing gas to pass through; or

[0010] The one-way door is hinged to the first tube, the one-way door is suitable for opening to the outside of the first tube, and the one-way door is provided with a through hole allowing gas to pass through.

[0011] Optionally, the magnetic damping structure also includes an adjustment plate, which is rotatably disposed on the one-way door and fits with the one-way door, and at least two air holes with different apertures are provided on the adjustment plate, so that the at least two air holes with different apertures can selectively correspond to the through hole.

[0012] Optionally, the abutment portion includes an elastic member and a first abutment wheel, the first abutment wheel is connected to the side wall via the elastic member, the magnetic damping structure also includes a second abutment wheel, the diameter of the second abutment wheel is smaller than the diameter of the first abutment wheel, the second abutment wheel and the first abutment wheel are located on the same side of the track, the second abutment wheel is closer to the magnet than the first abutment wheel, and the second abutment wheel is movably connected to the side wall.

[0013] Optionally, in the extension direction of the track from an end close to the magnet to an end away from the magnet, the slope of the track changes from large to small.

[0014] Optionally, the number of the rails and the number of the abutting portions are two respectively, and the two rails and the two abutting portions are symmetrically arranged relative to the magnet respectively.

[0015] The present invention also provides an adaptive sliding door anti-sway system, comprising a sliding door and the above-mentioned dynamic magnetic damping device, wherein the magnetic damping structure is arranged at the lower part of the sliding door, and the magnetic attraction member is arranged in the floor and corresponds to the magnetic damping structure.

[0016] The beneficial effect of the present invention is that, in a stationary state, since the magnetic damping structure is located above the magnetic attraction part, the distance between the magnetic damping structure and the magnetic attraction part is the smallest at this time, according to the shortest straight line between two points, and therefore, the magnetic force between the magnetic damping structure and the magnetic attraction part is the largest. Therefore, due to the interaction of forces, the magnetic damping structure can be adsorbed by the magnetic attraction part through the magnetic force between the magnetic attraction part and the magnetic damping structure, so that the lower part of the sliding door can be kept stable and not easy to shake through the magnetic force between the magnetic attraction part and the magnetic damping structure. When the magnetic damping structure moves with the sliding door, the distance between the magnetic damping structure and the magnetic attraction part will increase, so that the magnetic force between the magnetic attraction part and the magnetic damping structure will decrease, and thus the sliding door can slide freely. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the sliding door provided by the present invention;

[0018] Figure 2 An exploded schematic diagram of the dynamic magnetic damping device provided by the present invention;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the first perspective;

[0020] Figure 4 for Figure 2 A schematic diagram of the structure of the second perspective;

[0021] Figure 5 for Figure 2 A schematic diagram of the structure from the third perspective;

[0022] Figure 6 for Figure 5 Sectional view along AA direction;

[0023] Figure 7 A cross-sectional schematic diagram of a dynamic magnetic damping device provided by the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the second cylinder, the one-way door and the adjustment plate provided by the present invention;

[0025] Fig. 9 for Figure 8 A structural diagram from another perspective.

[0026] Figure numerals: 10-sliding door; 20-dynamic magnetic damping device; 21-housing; 22-magnet; 23-track; 231-mounting hole; 24-first abutting wheel; 241-spring; 242-bracket; 25-first tube; 251-first cavity; 26-second tube; 261-second cavity; 27-one-way door; 271-through hole; 28-adjusting plate; 281-air hole; 29-second abutting wheel; 211-top wall; 212-second side wall; 213-first side wall; 214-magnet positioning piece; 215-mounting shaft. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Reference Figure 1 and Figure 2 The present invention provides a dynamic magnetic damping device 20 for a sliding door 10. The dynamic magnetic damping device 20 includes a magnetic damping structure and a magnetic attraction member that are separated. The magnetic damping structure is used to be arranged at the lower part of the sliding door 10, and the magnetic attraction member is used to be arranged below the magnetic damping structure. When the sliding door 10 switches from a static state to a moving state, the magnetic force between the magnetic damping structure and the magnetic attraction member decreases. When the sliding door 10 switches from a moving state to a static state, the magnetic force between the magnetic damping structure and the magnetic attraction member increases.

[0029] Since the magnetic damping structure and the magnetic attraction component are not connected together but are in a separated state, the magnetic damping structure and the magnetic attraction component will produce relative movement with the movement of the sliding door 10. It should be understood that the position of the magnetic attraction component will not change during the whole process. In one embodiment, by adding magnetic attraction material to the threshold stone, the door located above the threshold stone has attraction with the threshold stone ground when it is stationary. Since the magnetic damping structure is arranged at the lower part of the sliding door 10, it will move with the movement of the sliding door 10.

[0030] The stationary state here means that the magnetic damping structure corresponds to the magnetic attraction member, that is, the magnetic damping structure is located above the magnetic attraction member; and the moving state means that the magnetic damping structure moves together with the sliding door 10 .

[0031] Based on the above technical solution, in the static state, since the magnetic damping structure is located above the magnetic attraction part, the distance between the magnetic damping structure and the magnetic attraction part is the smallest at this time, according to the shortest straight line between two points, and therefore, the magnetic force between the magnetic damping structure and the magnetic attraction part is the largest. Therefore, due to the interaction of forces, the magnetic damping structure can be adsorbed by the magnetic attraction part through the magnetic force between the magnetic attraction part and the magnetic damping structure, so that the lower part of the sliding door 10 can be kept stable and not easy to shake through the magnetic force between the magnetic attraction part and the magnetic damping structure. When the magnetic damping structure moves with the sliding door 10, the distance between the magnetic damping structure and the magnetic attraction part will increase, so that the magnetic force between the magnetic attraction part and the magnetic damping structure will decrease, and thus the sliding door 10 can slide freely.

[0032] In one embodiment, the magnetic attraction member can be a metal material that can be adsorbed by the magnet 22, such as iron, nickel, cobalt, etc., or an alloy of at least two of the materials iron, nickel, and cobalt. At this time, the magnetic damping structure should be magnetic to generate magnetic force with metals such as iron. Therefore, the magnetic damping structure can include the magnet 22.

[0033] In one embodiment, the magnetic damping structure may include a magnet 22, and the magnetic attraction member may also be a magnet, and the relative magnetic poles of the magnet 22 in the magnetic damping structure and the magnet in the magnetic attraction member are opposite to achieve attraction between opposite poles.

[0034] In one embodiment, the magnetic damping structure may include metals such as iron, nickel, and cobalt, and the magnetic attraction member includes a magnet 22, so that a magnetic force can be generated between the magnetic damping structure and the magnetic attraction member.

[0035] In one embodiment, when the sliding door 10 is converted from a stationary state to a moving state, at least a portion of the magnetic damping structure moves upward to increase the distance between the magnetic attraction member, and when the sliding door 10 is converted from a moving state to a stationary state, at least a portion of the magnetic damping structure moves downward to reduce the distance between the magnetic attraction member. By changing the upper and lower distances between the magnetic damping structure and the magnetic attraction member, the magnitude of the magnetic force between the two can be changed so as to magnetically adsorb or release the magnetic attraction on the lower part of the sliding door 10. Specifically, when the magnetic damping structure descends so that the distance between the magnetic damping structure and the magnetic attraction member becomes smaller, the lower part of the sliding door 10 can be adsorbed by the magnetic force between the magnetic damping structure and the magnetic attraction member to enhance the stability of the sliding door 10 so that it no longer shakes. When the magnetic damping structure rises so that the distance between the magnetic damping structure and the magnetic attraction member increases, the adsorption between the magnetic damping structure and the magnetic attraction member can be released, so that the sliding door 10 can move freely.

[0036] Reference Figure 2 , Figure 3 and Figure 4 As shown, the magnetic damping structure includes a shell 21, a track 23, a magnet 22 and a supporting portion, wherein the shell 21 can be arranged on the bottom end surface of the sliding door 10, or on the bottom side surface of the sliding door 10 (that is, the lower part of the side surface of the sliding door 10), and an upwardly extending groove can be provided on the bottom end surface of the sliding door 10, and the shell 21 can be accommodated in the groove, which can improve the structural compactness of the sliding door 10.

[0037] The shell 21 includes a top wall 211 and side walls connected to each other. According to the specific shape of the shell 21, the number of the side walls is one, two or more. For example, when the shell 21 is in the shape of a rectangular parallelepiped, the shell 21 may include four side walls. When the shell 21 is in the shape of a hexagonal prism, the shell 21 includes six side walls. The specific shape of the shell 21 is not limited in the present invention. The top wall 211 and the side walls define an installation space. The track 23, the magnet 22 and the abutment portion are all arranged in the installation space. The magnet 22 is connected to the top wall 211 in a liftable manner along a first direction, such as Figure 2 As shown, the first direction is the up-down direction, and one end of the track 23 is hinged to the top wall 211 and / or the side wall, that is, one end of the track 23 can be hinged to the top wall 211, can also be hinged to the side wall, and can also be hinged to the top wall 211 and the side wall at the same time, and one end of the track 23 is hinged to the side wall, such as Figure 6 and Figure 7 As shown, a mounting shaft 215 is provided on the side wall of the sliding door 10, and a mounting hole 231 is provided at one end of the track 23. By sleeve-mounting the mounting hole 231 of the track 23 on the mounting shaft 215, the track 23 can be rotated around the mounting shaft 215 as the center of a circle. The other end of the track 23 abuts against the lower surface of the magnet 22, and the abutting portion is telescopically provided on the side wall along the second direction, as shown in FIG. Figure 2As shown, the second direction here is the horizontal direction. When the sliding door 10 is switched from the static state to the moving state, the abutting portion abuts the track 23. Since one end of the track 23 is hinged to the mounting shaft 215, the other end of the track 23 can lift the magnet 22 to raise the magnet 22. Figure 2 As shown, when the sliding door 10 is pushed from right to left, due to inertia, the abutting portion will extend to the right to abut against the track 23 (at this time, the abutting portion on the left will extend and contact the track 23 on the left, while the abutting portion on the right will shrink and will not contact the track 23 on the right; conversely, when the sliding door 10 is pushed from left to right, the abutting portion on the left will shrink and will not contact the track 23 on the left, while the abutting portion on the right will extend and contact the track 23 on the right), so that the track 23 will rotate around the hinge with the top wall 211 and / or the side wall, and then The end of the track 23 close to the magnet 22 is rotated upward, thereby pushing the magnet 22 to rise, so that the magnetic damping structure and the magnetic attraction member can be separated, and the magnetic force between the two can be reduced. During the lifting and lowering process of the magnet 22, the sliding door 10 can be adsorbed or released. The above structure can convert the force exerted by the user on the sliding door 10 into the rising power of the magnet 22. In this way, there is no need to set up an automatic control mechanism for the magnet 22, which can make the structure of the entire dynamic magnetic damping device 20 simpler, occupy less space, and also reduce costs.

[0038] Reference Figure 5 and Figure 6, optionally, the magnetic damping structure also includes a telescopic cylinder, which is arranged between the top wall 211 and the magnet 22, and the telescopic cylinder includes a first cylinder 25 and a second cylinder 26. The first cylinder 25 and the second cylinder 26 are cylindrical structures, one end of the first cylinder 25 is connected to the top wall 211, the other end of the first cylinder 25 is sleeved with one end of the second cylinder 26, and the other end of the second cylinder 26 is connected to the magnet 22, the first cylinder 25 and the second cylinder 26 both extend in the vertical direction, and the axis of the first cylinder 25 and the axis of the second cylinder 26 are located on the same vertical line, a first cavity 251 is formed in the first cylinder 25, and a second cavity 261 is formed in the second cylinder 26, and the first cavity 251 and the second cavity 261 are selectively connected, that is, in the initial state (when the distance between the magnet 22 and the magnetic attraction member is the smallest), the first cavity 251 and the second cavity 261 are not connected to each other, when the magnet 22 rises, the pressure in the first cavity 251 is first greater than the pressure in the second cavity 261 and until it is connected to the second The pressure of the cavity 261 is balanced. When the second cylinder 26 rises, the second cylinder 26 squeezes the first cylinder 25, so that the pressure in the first cylinder 25 increases. In order to prevent the pressure of the first cylinder 25 from affecting the continued rise of the magnet 22, that is, to reduce the resistance of the magnet 22 to rise, at this time, the pressure in the first cylinder 25 should be reduced. Since the magnet 22 can be quickly separated from the magnetic attraction member, this is conducive to reducing the door-pushing resistance generated by the magnetic force between the magnetic attraction member and the magnet 22. When the magnet 22 descends, the pressure of the first cavity 251 is first less than the pressure in the second cavity 261 and until it is balanced with the pressure of the second cavity 261, wherein the second cavity 261 is connected to the outside air. When the pressure of the first cavity 251 is less than the pressure of the second cavity 261, at this time, the first cavity 251 is negative pressure. In order to prevent the first cavity 251 from affecting the normal descent of the magnet 22 and keep the magnet 22 descending, it is necessary to gradually balance the pressures of the first cavity 251 and the second cavity 261. Therefore, by setting the first tube 25 and the second tube 26 and the mutual pressure relationship, the falling time of the magnet 22 can be delayed to ensure that when the sliding door 10 switches from a static state to a moving state, the magnet 22 can maintain a certain distance from the magnetic attraction part, which is conducive to easier sliding of the sliding door 10.

[0039] Reference Figure 5 , Figure 6 , Figure 8 and Fig. 9 The magnetic damping structure further includes a one-way door 27, wherein the one-way door 27 has two configuration modes:

[0040] In one setting: the one-way door 27 is hinged in the second tube 26 and is used to separate the first cavity 251 and the second cavity 261. The one-way door 27 is suitable for opening into the second cavity 261. Specifically, the one-way door 27 can be connected to the inner wall of the second tube 26 by a coil spring. The one-way door 27 is provided with a through hole 271 for allowing gas to pass through. Therefore, when the magnet 22 pushes the second tube 26 to rise, the second tube 26 pushes the first tube 25 to rise and increases the pressure in the first tube 25. At the same time, under the action of the pressure in the first tube 25, the one-way door 27 will open toward the center of the second cavity 261, so that the air in the first tube 25 can flow quickly into the second tube 26, thereby releasing the resistance to the rise of the magnet 22. At the same time, it is ensured that the pressure inside the first tube 25 and the second tube 26 are in balance, so that the magnet 22 can rise smoothly.

[0041] When the magnet 22 rises, the second tube 26 rises accordingly, making the pressure in the first cavity 251 greater than the pressure in the second cavity 261. Once the pressure in the first cavity 261 is greater than the pressure in the second cavity 261, the pressure difference will cause the one-way door 27 to open, quickly making the pressure in the first cavity 251 and the pressure in the second cavity 261 the same, thereby reducing the resistance to the rise of the magnet 22.

[0042] It should be noted that if Figure 6 As shown, the cross-sectional area of ​​the one-way door 27 can be less than or equal to the cross-sectional area of ​​the second tube 26. For example, the cross-sectional area of ​​the one-way door 27 can be 1 / 2 or 3 / 4 of the cross-sectional area of ​​the second tube 26, etc., which is not specifically limited in the present invention. In specific implementation, a partition (not shown in the figure) can be provided in the second cavity 261 of the second tube 26 to separate the first cavity 251 and the second cavity 261 through the partition, and a through hole is provided at the center of the partition, and the one-way door 27 can be hinged at the through hole of the partition to separate or connect the first cavity 251 and the second cavity 261 according to whether the one-way door 27 covers the through hole.

[0043] In another setting mode: the one-way door 27 is hinged on the first tube 25, and the one-way door 27 is suitable for opening to the outside of the first tube 25. As above, the one-way door 27 can still be connected to the second tube 26 through a coil spring, wherein the one-way door 27 can be specifically connected to the outer wall of the second tube 26, and the one-way door 27 opens in the direction away from the first cavity 251, that is, the one-way door 27 opens to the outside. Similarly, when the magnet 22 pushes the second tube 26 to rise, the second tube 26 pushes the first tube 25 to rise and increases the pressure in the first tube 25. At the same time, under the action of the pressure in the first tube 25, the one-way door 27 opens, so that the air in the first tube 25 can quickly flow to the outside through the one-way door 27, so that the pressure in the first tube 25 reaches a balance with the pressure of the outside. The one-way door 27 is provided with a through hole 271 for allowing gas to pass through.

[0044] The setting of the through hole 271 can prevent the negative pressure in the first tube 25 from being too large when the magnet 22 descends to form a negative pressure in the first tube 25, thereby avoiding the problem that the magnet 22 cannot fall into place. The aperture size of the through hole 271 determines the speed of the change of the negative pressure. It should be understood that the smaller the aperture of the through hole 271, the slower the negative pressure changes, and accordingly, the slower the time for the magnet 22 to fall. The larger the aperture of the through hole 271, the faster the negative pressure changes, and accordingly, the faster the time for the magnet 22 to fall.

[0045] Reference Figure 8 Optionally, the magnetic damping structure further comprises an adjusting plate 28, which is rotatably disposed on the one-way door 27 and fits with the one-way door 27. Specifically, the adjusting plate 28 can be installed on the one-way door 27 through a connecting shaft, and there is a small gap between the adjusting plate 28 and the one-way door 27, or in other words, the surfaces of the adjusting plate 28 contacting the one-way door 27 are parallel to each other. At least two air holes 281 with different apertures are provided on the adjusting plate 28, so that at least two air holes 281 with different apertures can selectively correspond to the through hole 271. Since the air holes 281 can be connected and correspond to the through hole 271, the aperture of the air holes 281 will affect the falling time of the magnet 22. According to the inventor's different sizes of the sliding door 10 and personal door-pushing habits, the general door-pushing time is 2-7 seconds, and the time from the magnet 22 rising to the end of the falling is the ideal door-pushing time. Therefore, the door-pushing time can be adjusted by adjusting different air holes 281, so as to match the needs or habits of different users.

[0046] In order to facilitate the adjustment of the adjustment plate 28 , the adjustment plate 28 may be disposed on a side of the one-way door 27 away from the first cylinder 25 .

[0047] The number of the air holes 281 can be set as needed, for example, two, three, four or more. During the rotation of the adjustment plate 28, in order to ensure that each air hole 281 can be aligned with the through hole 271 respectively, the distance between the center of each air hole 281 and the rotation center of the adjustment plate 28 should be equal, that is, the centers of all air holes 281 are located on a circle with the rotation center of the adjustment plate 28 as the center.

[0048] Reference Figure 6 and Figure 7Optionally, the abutting portion includes an elastic member and a first abutting wheel 24, the first abutting wheel 24 is connected to the side wall through the elastic member and the bracket 242, wherein the elastic member can be a spring 241, and the bracket 242 can be set to a U-shaped structure to be connected to the connecting shaft of the first abutting wheel 24, and the magnetic damping structure also includes a second abutting wheel 29, the diameter of the second abutting wheel 29 is smaller than the diameter of the first abutting wheel 24, the second abutting wheel 29 and the first abutting wheel 24 are both located on the same side of the track 23, the second abutting wheel 29 is closer to the magnet 22 relative to the first abutting wheel 24, the second abutting wheel 29 can be movably connected to the side wall, and the second abutting wheel 29 can also be connected to the side wall of the shell 21 through a spring. Here, the shell 21 is taken as a rectangular structure as an example, the rectangular structure includes two opposite first side walls 213 and two opposite second side walls 212, when the first abutting wheel 24 is set on the first side wall 213, the second abutting wheel 29 is set between the two second side walls 212. Since the magnet 22 and the magnetic member are attracted to each other in a static state, although the stability of the door can be improved and the shaking can be reduced, the user needs to exert a greater force when pushing the door. Therefore, by providing a second abutting wheel 29 with a diameter smaller than the first abutting wheel 24, at the moment of pushing the door, the second abutting wheel 29 is first moved, and then a part of the magnet 22 is first pried open by the second abutting wheel 29 and the track 23, and then the first abutting wheel 24 is used to exert force to enable the magnet 22 to move upward a sufficient distance (about 2-3 cm) with a stronger force. In this way, the time for the user to continuously exert a greater force when pushing the door can be reduced, so that the magnet 22 is lifted at a faster speed. After the magnet 22 is lifted, the magnetic force between the magnet 22 and the magnetic member is greatly reduced, and the resistance that the user needs to overcome when pushing the door is reduced, and the user can smoothly push the sliding door 10 with less force.

[0049] like Figure 6 and Figure 7 As shown, optionally, the slope of the track 23 changes from large to small in the extending direction from the end of the track 23 close to the magnet 22 to the end away from the magnet 22. When the slope of the track 23 is larger, the magnet 22 can move upward faster when the holding wheel moves at the same speed, that is, the magnet 22 can be separated from the magnetic attraction faster, so that the door can be pushed with a large resistance for a long time.

[0050] Optionally, the number of the rails 23 and the number of the abutting portions are two, and the two rails 23 and the two abutting portions are symmetrically arranged relative to the magnet 22. Thus, through the two rails 23 and the two abutting portions, the magnet 22 can be lifted regardless of pushing the sliding door 10 from left to right or from right to left. In this way, the installation direction of the sliding door 10 can be selected arbitrarily, and the installation requirements are lower.

[0051] like Figure 6As shown, optionally, the dynamic magnetic damping device 20 may further include a magnet positioning member 214, and the magnet positioning member 214 is arranged on the side wall of the shell 21. The number of the magnet positioning members 214 may include four, wherein two magnet positioning members 214 are arranged on a second side wall 212, and the other two magnet positioning members 214 are arranged on another opposite second side wall 212. By setting the magnet positioning member 214, the lifting and lowering process of the magnet 22 can be limited, that is, to ensure that the magnet 22 always rises or falls in the vertical direction, so as to avoid the magnet 22 from shaking when the sliding door 10 moves, thereby affecting the stability of the sliding door 10.

[0052] Reference Figure 1 The present invention also provides an adaptive sliding door anti-sway system, including a sliding door 10 and the above-mentioned dynamic magnetic damping device 20, wherein the magnetic damping structure is arranged at the lower part of the sliding door 10, and the magnetic attraction member is arranged in the floor and corresponds to the magnetic damping structure.

[0053] The floor here can be a common wooden floor in home decoration, or a ceramic tile, or other forms of floor, and the present invention does not make specific limitations on this.

[0054] Each sliding door 10 is provided with two dynamic magnetic damping devices 20 , and the two dynamic magnetic damping devices 20 are arranged at intervals at the lower part of the sliding door 10 . The provision of the two dynamic magnetic damping devices 20 is conducive to further increasing the stability of the sliding door 10 .

[0055] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of the present invention and simplifying the description, rather than indicating or implying 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 invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area surrounding a specific component or a specific area.

[0056] In the description of the embodiments of the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0057] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" 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 direct connection, or an indirect connection 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.

[0058] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0059] In the description of the embodiments of the present invention, it is to be understood that "-" and "~" represent the range between two values, and the range includes the endpoints. For example: "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0060] In the description of the embodiments of the present invention, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic magnetic damping device for a sliding door, characterized in that: The dynamic magnetic damping device comprises a magnetic damping structure and a magnetic attraction member which are separated from each other, wherein the magnetic damping structure is used to be arranged at the lower part of the sliding door, and the magnetic attraction member is used to be arranged below the magnetic damping structure, and when the sliding door is switched from a static state to a moving state, the magnetic force between the magnetic damping structure and the magnetic attraction member decreases, and when the sliding door is switched from a moving state to a static state, the magnetic force between the magnetic damping structure and the magnetic attraction member increases; When the sliding door is switched from a stationary state to a moving state, at least a portion of the magnetic damping structure moves upward to increase the distance between the magnetic attraction member and the sliding door, and when the sliding door is switched from a moving state to a stationary state, at least a portion of the magnetic damping structure moves downward to decrease the distance between the magnetic attraction member and the sliding door; The magnetic damping structure includes a shell, a track, a magnet and a supporting portion. The shell includes a top wall and side walls connected to each other, the top wall and the side walls define an installation space, the track, the magnet and the supporting portion are all arranged in the installation space, the magnet is connected to the top wall in a liftable manner along a first direction, one end of the track is hinged to the top wall and / or the side wall, the other end of the track is abutted against the lower surface of the magnet, and the supporting portion is telescopically arranged on the side wall along a second direction, when the sliding door is switched from a static state to a moving state, the supporting portion abuts the track to raise the magnet, wherein the first direction and the second direction are perpendicular.

2. The dynamic magnetic damping device according to claim 1, characterized in that: The magnetic damping structure also includes a telescopic cylinder, which is arranged between the top wall and the magnet. The telescopic cylinder includes a first cylinder and a second cylinder. One end of the first cylinder is connected to the top wall, and the other end of the first cylinder is sleeved with one end of the second cylinder. The other end of the second cylinder is connected to the magnet. A first cavity is formed in the first cylinder, and a second cavity is formed in the second cylinder. The first cavity and the second cavity can be selectively connected.

3. The dynamic magnetic damping device according to claim 2, characterized in that: The magnetic damping structure also includes a one-way door; The one-way door is hinged in the second tube and is used to separate the first cavity and the second cavity, the one-way door is suitable for opening in the direction of the second cavity, and the one-way door is provided with a through hole allowing gas to pass through; or The one-way door is hinged to the first tube, the one-way door is suitable for opening to the outside of the first tube, and the one-way door is provided with a through hole allowing gas to pass through.

4. The dynamic magnetic damping device according to claim 3, characterized in that: The magnetic damping structure also includes an adjustment plate, which is rotatably disposed on the one-way door and fits with the one-way door, and at least two air holes with different apertures are provided on the adjustment plate, so that the at least two air holes with different apertures can selectively correspond to the through hole.

5. The dynamic magnetic damping device according to claim 1, characterized in that: The abutment portion includes an elastic member and a first abutment wheel, the first abutment wheel is connected to the side wall via the elastic member, the magnetic damping structure also includes a second abutment wheel, the diameter of the second abutment wheel is smaller than the diameter of the first abutment wheel, the second abutment wheel and the first abutment wheel are both located on the same side of the track, the second abutment wheel is closer to the magnet than the first abutment wheel, and the second abutment wheel is movably connected to the side wall.

6. The dynamic magnetic damping device according to claim 1, characterized in that: In the extending direction of the track from the end close to the magnet to the end far away from the magnet, the slope of the track changes from large to small.

7. The dynamic magnetic damping device according to claim 1, characterized in that: The number of the rails and the number of the abutting parts are respectively two, and the two rails and the two abutting parts are respectively symmetrically arranged relative to the magnet.

8. An adaptive sliding door anti-sway system, characterized in that: It comprises a sliding door and the dynamic magnetic damping device according to any one of claims 1 to 7, wherein the magnetic damping structure is arranged at the lower part of the sliding door, and the magnetic attraction member is arranged in the floor and corresponds to the magnetic damping structure.

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