Swing chair driven by electromagnetism to swing

Abstract

The utility model discloses a swing chair driven by electromagnetism to swing. The swing chair driven by electromagnetism to swing comprises a base, stretching devices are arranged on the two sides of the base, a swing rod is arranged between the stretching devices on the two sides, the base is provided with a composite linear electromagnetic tractor, the composite linear electromagnetic tractor comprises a mounting base fixedly connected with the base, a winding drum is arranged in the mounting base, and the winding drum is connected with the swing rod. A plurality of spacers are arranged on the peripheral face of the winding drum, coils wound on the peripheral face of the winding drum are arranged between the adjacent spacers, a magnetic shaft penetrates through the winding drum, and the end of one side of the magnetic shaft is connected with the swing rod through a connecting structure. The rocking chair solves the problems that in the prior art, automatic rocking of the rocking chair is not facilitated, and user experience is affected.

Description

Technical Field

[0001] The utility model relates to the field of household manufacturing, and particularly relates to a rocking chair driven by electromagnetic force to swing. Background Art

[0002] There is a Chinese utility model patent with the application number 2024212755143 and the name of "An Electromagnetic Drive Module". By energizing the coil of the drum to generate a magnetic field, an attractive force is generated on the telescopic mandrel, thereby driving the swing rod to swing. However, this electromagnetic drive module has relatively high requirements for the relative positions of the telescopic mandrel and the drum coil. When the telescopic mandrel is far from the drum coil, the attractive force generated by energizing the drum coil on the telescopic mandrel is large. When the telescopic mandrel is inserted into the drum coil, the attractive force generated by energizing the drum coil on the telescopic mandrel is small. When the rocking chair using this electromagnetic drive module is at rest, the telescopic mandrel is in a state of being inserted into the drum coil, which is not conducive to the automatic swinging of the rocking chair and affects the user experience. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a rocking chair driven by electromagnetic force to swing, which is convenient for the automatic swinging of the rocking chair, thereby improving the user experience.

[0004] To achieve the above purpose, the technical solution adopted by the rocking chair driven by electromagnetic force to swing in the present utility model is as follows:

[0005] A rocking chair driven by electromagnetic force to swing includes a base. Stretch devices are arranged on both sides of the base, and a swing rod is arranged between the stretch devices on both sides. The characteristics are that: the base is provided with a composite linear electromagnetic tractor, and the composite linear electromagnetic tractor includes a mounting seat fixedly connected with the base. A drum is arranged inside the mounting seat. A plurality of partitions are arranged on the outer peripheral surface of the drum. A coil wound around the outer peripheral surface of the drum is arranged between adjacent partitions. A magnetic shaft penetrates through the drum, and one end of the magnetic shaft is connected with the swing rod through a connecting structure.

[0006] Preferably, a linear bearing is sleeved outside the magnetic shaft. The linear bearing includes a bearing seat fixedly connected with the base. A plurality of rolling bearings for clamping the magnetic shaft are arranged at both ends of the bearing seat. Rubber rings are sleeved on the outer rings of the rolling bearings, and the two end faces of the inner rings of the rolling bearings protrude from the two end faces of the outer rings.

[0007] Preferably, the magnetic shaft includes a non-magnetic tube, and a plurality of permanent magnets coaxial with it are arranged inside the non-magnetic tube, and the polar directions of each permanent magnet are the same.

[0008] Preferably, non-magnetic partitions for separating adjacent permanent magnets are arranged inside the non-magnetic tube.

[0009] Preferably, the connection structure includes a rod end spherical bearing fixedly connected to the magnetic axis. The rod end spherical bearing is hinged with a first connecting rod, and the other end of the transmission member is pivotally connected to a second connecting rod, and the second connecting rod is fixedly connected to the swing rod.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. Regardless of the state of the rocking chair, the composite linear electromagnetic tractor can directly provide the swinging driving force for the rocking chair through the connection structure, which is convenient for the rocking chair to automatically start swinging, thereby improving the user experience. In addition, by changing the current direction of the coil, the composite linear electromagnetic tractor can provide two power sources of "pulling and pushing" during the back-and-forth movement of the rocking chair, further improving the user experience.

[0012] 2. By arranging non-magnetic partitions between the permanent magnets, the occurrence of magnetic leakage can be suppressed, which is beneficial to increasing the air-gap magnetic flux density, ensuring that the driving force does not weaken, and at the same time, the amount of permanent magnets can be reduced, thereby reducing costs.

[0013] 3. By sleeving a rubber ring on the outer ring of the rolling bearing, a silent effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a rocking chair driven by electromagnetic swing according to the present invention;

[0015] Figure 2 is a cross-sectional view of the composite linear electromagnetic tractor according to the present invention;

[0016] Figure 3 is a schematic structural diagram of the linear bearing according to the present invention;

[0017] Figure 4 is a schematic structural diagram of the rolling bearing;

[0018] Figure 5 is a schematic structural diagram of the connection structure.

[0019] Wherein, 1 is the base, 2 is the extension device, 3 is the swing rod, 4 is the composite linear electromagnetic tractor, 41 is the mounting seat, 42 is the winding drum, 421 is the spacer, 43 is the coil, 44 is the magnetic axis, 441 is the non-magnetic tube, 442 is the permanent magnet, 443 is the cover, 444 is the non-magnetic partition, 5 is the linear bearing, 51 is the bearing seat, 52 is the rolling bearing, 521 is the rubber ring, 6 is the connection structure, 61 is the rod end spherical bearing, 62 is the first connecting rod, and 63 is the second connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. After reading the present utility model, various equivalent modifications made by those skilled in the art to the present utility model fall within the scope defined by the appended claims of this application.

[0021] As Figures 1-5 shown, a rocking chair driven by electromagnetic force to rock includes a base 1. Stretch devices 2 are installed on both sides of the base. A swing rod 3 is installed between the stretch devices on both sides. A composite linear electromagnetic tractor 4 is installed on the base. The composite linear electromagnetic tractor includes a mounting seat 41 fixedly connected to the base. A winding drum 42 is installed in the mounting seat. Five partitions 421 are integrally formed on the outer peripheral surface of the winding drum. Coils 43 wound around the outer peripheral surface of the winding drum are arranged between adjacent partitions. The winding drum penetrates through a magnetic shaft 44. The magnetic shaft includes a non-magnetic tube 441. A plurality of permanent magnets 442 coaxial with the non-magnetic tube are installed in the non-magnetic tube and are blocked by a cover 443. The polar directions of each permanent magnet are the same. Adjacent permanent magnets are separated by non-magnetic partitions 444. By setting non-magnetic partitions between the permanent magnets, the occurrence of magnetic leakage can be inhibited, which is beneficial to increasing the air-gap magnetic flux density, ensuring that the driving force does not weaken, and at the same time, the amount of permanent magnets can be reduced, and the cost can be lowered. A linear bearing 5 is sleeved outside the non-magnetic tube. The linear bearing is located on the front side of the mounting seat to guide the magnetic shaft. The linear bearing includes a bearing seat 51 fixedly connected to the base. Three rolling bearings 52 evenly distributed in a circle are pivotally connected to both ends of the bearing seat for clamping the magnetic shaft. Rubber rings 521 are sleeved on the outer rings of the rolling bearings to achieve a silent effect. The two end faces on both sides of the inner ring of the rolling bearing protrude from the two end faces on both sides of the outer ring to avoid mutual wear and noise caused by the friction between the outer ring and the rubber ring and the bearing seat. The non-magnetic tube is connected to the swing rod through a connection structure 6. The connection structure includes a rod-end spherical bearing 61 fixedly connected to the front end of the non-magnetic tube. The rod-end spherical bearing is hinged to a first connecting rod 62. The front end of the first connecting rod is pivotally connected to a second connecting rod 63. The front end of the second connecting rod is fixedly connected to the swing rod.

[0022] The specific working process and principle of the present utility model: When a positive current is passed through the coil, according to Lenz's law, the magnetic shaft is repelled and moves forward along the linear bearing. The swing rod and the stretch devices on both sides are driven to swing forward through the connection structure. When the stretch device swings backward, a negative current can be passed through the coil, and the magnetic shaft is attracted and moves backward along the linear bearing. The present utility model provides a driving force for the rocking of the rocking chair through a composite linear electromagnetic tractor, solves the problems of high position requirements for the telescopic mandrel and the winding drum coil and insufficient electromagnetic driving force in the prior art, facilitates the automatic swinging of the rocking chair, and thus improves the user experience. In addition, by changing the current direction of the coil, the rocking chair can be driven by force during both forward and backward swings, and the driving force is stable to ensure uniform swing amplitude of the rocking chair, further improving the user experience.

Claims

1. A rocking chair driven by electromagnetic oscillation, comprising a base, with stretching devices arranged on both sides of the base, and a rocking rod arranged between the stretching devices on both sides, characterized in that: The base is provided with a composite linear electromagnetic tractor, and the composite linear electromagnetic tractor includes a mounting seat fixedly connected to the base. A reel is arranged in the mounting seat. A plurality of spacers are arranged on the outer peripheral surface of the reel. Coils wound around the outer peripheral surface of the reel are arranged between adjacent spacers. A magnetic shaft penetrates through the reel, and one end of the magnetic shaft is connected to a swing rod through a connecting structure.

2. The rocking chair driven by electromagnetic force according to claim 1, characterized in that: A linear bearing is sleeved outside the magnetic shaft. The linear bearing includes a bearing seat fixedly connected to the base. A plurality of rolling bearings for clamping the magnetic shaft are arranged at both ends of the bearing seat. Rubber rings are sleeved on the outer rings of the rolling bearings, and the two end faces on both sides of the inner ring of the rolling bearing protrude from the two end faces on both sides of the outer ring.

3. The rocking chair using electromagnetic drive according to claim 2, characterized in that: The magnetic shaft includes a non-magnetic tube, and a plurality of permanent magnets coaxial with the non-magnetic tube are arranged in the non-magnetic tube. The polar directions of all the permanent magnets are the same.

4. The rocking chair driven by electromagnetic force according to claim 3, characterized in that: Non-magnetic partition plates for separating adjacent permanent magnets are arranged in the non-magnetic tube.

5. The rocking chair driven by electromagnetic force according to claim 1, characterized in that: The connecting structure includes a rod end spherical bearing fixedly connected to the magnetic shaft. The rod end spherical bearing is hinged to a first connecting rod. The other end of the transmission member is pivotally connected to a second connecting rod, and the second connecting rod is fixedly connected to the swing rod.

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