Magnetic repulsive damping roller carrier

Abstract

The utility model discloses a magnetic repulsive damping roller carrier which comprises a roller seat and a roller carrier body, a containing cavity is formed below the roller seat, the roller carrier body is located in the containing cavity, one side of the roller carrier body is connected with a hinge arm, the hinge arm is hinged to the roller seat, a first magnet is arranged above the containing cavity, a second magnet is arranged on the roller carrier body, and the first magnet is connected with the second magnet. The same-polarity sides of the first magnet and the second magnet are opposite, and a rotation guiding structure and an anti-disengaging structure used for preventing the wheel frame from disengaging from the interior of the containing cavity are arranged between the wheel base and the wheel frame. According to the magnetic repulsive damping roller carrier, elastic damping is carried out through mutual magnetic repulsive force between the magnets, damping failure caused by clamping of sundries can be avoided, the overall structure is simple, and later maintenance and replacement of the magnets are convenient.

Description

Technical Field

[0001] This utility model relates to the field of luggage wheel frame technology, and more specifically to a magnetic repulsion shock-absorbing roller frame. Background Technology

[0002] The existing patent application number CN201520550190.4, entitled "Shock-absorbing Luggage Roller Frame," discloses a wheel seat with a hinged base and a movable frame. The movable frame is hingedly mounted on the hinged base of the wheel seat. The movable frame includes a hinged end and a swing arm. There is a compressible buffer cavity between the swing arm and the wheel seat. The swing arm has an open position corresponding to the expanded state of the buffer cavity and a maximum compression position corresponding to the compressed state of the buffer cavity. An elastic shock-absorbing mechanism is provided between the wheel seat and the movable frame to drive the swing arm to the open position. An initial position limiting structure limits the open position of the swing arm and a compression position limiting structure limits the maximum compression position of the swing arm. The initial position limiting structure includes a limiting stop protrusion provided on the hinged base. A limiting surface is provided on the hinged end of the movable frame, and the limiting surface is stopped and limited by the limiting stop protrusion.

[0003] Although the shock-absorbing luggage roller frame in this patent has the advantages of simple and compact structure, few parts, convenient processing and manufacturing, and good structural stability, it uses springs for shock absorption and the springs are exposed to the outside. In actual rolling use, some debris such as small stones can easily get stuck in the springs, causing shock absorption failure and seriously affecting the shock absorption function of the shock-absorbing luggage roller frame. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a magnetic repulsion damping roller frame. This magnetic repulsion damping roller frame utilizes the mutual magnetic repulsion between magnets to achieve elastic damping, which can prevent damping failure caused by debris getting stuck. Furthermore, the overall structure is simple, and the maintenance and replacement of the magnets are relatively convenient in the future.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A magnetic repulsion damping roller frame includes a wheel base and a wheel frame. A receiving cavity is provided below the wheel base, and the wheel frame is located inside the receiving cavity. A hinge arm is connected to one side of the wheel frame, and the hinge arm is hinged to the wheel base. A first magnet is provided above the receiving cavity, and a second magnet is provided on the wheel frame. The first magnet and the second magnet have the same polarity sides facing each other. A rotation guide structure and an anti-detachment structure for preventing the wheel frame from detaching from the receiving cavity are provided between the wheel base and the wheel frame.

[0007] Furthermore, the rotation guide structure includes an arc-shaped groove on the wheel seat and an arc-shaped block fixed on the wheel frame. When the hinged arm drives the wheel frame to rotate, the arc-shaped block extends into the arc-shaped groove.

[0008] Furthermore, the bottom of the wheel seat is provided with a hinge groove, and hinge holes are provided on both sides of the hinge groove. The end of the hinge arm away from the wheel frame is provided with a connection hole, and the hinge arm extends into the hinge groove. A hinge shaft is installed in the hinge hole, and the hinge shaft passes through the connection hole and the hinge holes on both sides of the hinge groove.

[0009] Furthermore, the anti-detachment structure includes an anti-detachment block, which is fixed to the outer side of the end of the hinge arm away from the wheel frame. When the hinge arm drives the wheel frame to rotate outward from the receiving cavity, the anti-detachment block will contact and abut against the outer side of the wheel seat to prevent the hinge arm from continuing to rotate.

[0010] Furthermore, a hidden groove is provided on the wheel seat relative to the anti-detachment block, and the anti-detachment block is located in the hidden groove.

[0011] Furthermore, the wheel seat is provided with a first mounting cavity above the receiving cavity, and the first magnet is installed in the first mounting cavity. The wheel frame is provided with a second mounting cavity, and the second magnet is installed in the second mounting cavity.

[0012] Furthermore, the top of the wheel seat is provided with an insertion hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model sets up a wheel seat and a wheel frame, and connects the wheel seat to a hinge arm. The hinge arm allows the wheel seat and wheel frame to be hinged together and rotate. Then, a first magnet is set on the wheel seat and a second magnet is set on the wheel frame. The repulsive effect between the like poles of the first magnet and the second magnet creates a magnetic repulsive force between the side of the wheel frame away from the hinge and the wheel seat, thereby achieving a shock absorption effect in actual use. At the same time, using this structure for shock absorption can prevent debris such as stones from getting stuck and affecting the shock absorption effect.

[0015] Meanwhile, by setting up the first mounting cavity and the second mounting cavity, the first magnet and the second magnet can be quickly positioned and installed, and their positions can be kept fixed, which facilitates disassembly and replacement later.

[0016] By setting up a rotation guide structure, the rotation of the wheel frame can be precisely guided;

[0017] By setting up an anti-detachment structure, it can be ensured that the wheel frame will not come out of the housing cavity, thereby ensuring that there is always sufficient repulsive force between the wheel frame and the wheel seat for shock absorption. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0019] Figure 1 A schematic diagram of a magnetic repulsion damping roller frame. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of a magnetic repulsion damping roller frame.

[0021] Figure 3 Schematic diagram of wheel seat structure Figure 1 ;

[0022] Figure 4 Schematic diagram of wheel seat structure Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the wheel frame structure.

[0024] The markings in the diagram are as follows: 1. Wheel seat; 2. Wheel frame; 3. Hinge arm; 4. Hinge shaft; 5. Anti-detachment block; 6. Hidden groove; 7. Second mounting cavity; 8. Second magnet; 9. First mounting cavity; 10. First magnet; 11. Receiving cavity; 12. Arc groove; 13. Arc block; 14. Insertion hole; 15. Hinge groove. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0027] A magnetic repulsion damping roller frame 2 includes a wheel seat 1 and a wheel frame 2. A receiving cavity 11 is provided below the wheel seat 1. The wheel frame 2 is located in the receiving cavity 11, and a hinge arm 3 is connected to one side of the wheel frame 2. The hinge arm 3 is hinged to the wheel seat 1. A first magnet 10 is provided above the receiving cavity 11, and a second magnet 8 is provided on the wheel frame 2. The first magnet 10 and the second magnet 8 are opposite each other on the same polarity side. A rotation guide structure and an anti-detachment structure for preventing the wheel frame 2 from detaching from the receiving cavity 11 are provided between the wheel seat 1 and the wheel frame 2.

[0028] This invention features a wheel seat 1 and a wheel frame 2, with the wheel seat 1 connected to a hinge arm 3. The hinge arm 3 allows the wheel seat 1 and wheel frame 2 to be hinged and rotate. A first magnet 10 is placed on the wheel seat 1, and a second magnet 8 is placed on the wheel frame 2. The repulsive force between the like poles of the first magnet 10 and the second magnet 8 creates a magnetic repulsive force between the side of the wheel frame 2 away from the hinge and the wheel seat 1, thus providing shock absorption during actual use. This structure also prevents debris such as stones from getting stuck and affecting the shock absorption effect. Furthermore, a rotation guide structure provides precise guidance for the rotation of the wheel frame 2. An anti-detachment structure ensures that the wheel frame 2 will not come out of the receiving cavity 11, thus ensuring that there is always sufficient repulsive force between the wheel frame 2 and the wheel seat 1 for shock absorption.

[0029] In this preferred embodiment, the rotation guide structure includes an arc-shaped groove 12 disposed on the wheel seat 1 and an arc-shaped block 13 fixed on the wheel frame 2. When the hinge arm 3 drives the wheel frame 2 to rotate, the arc-shaped block 13 extends into the arc-shaped groove 12, thereby guiding the rotation of the wheel frame 2 through the sliding of the arc-shaped block 13 in the arc-shaped groove 12, thus achieving the function of precise rotation.

[0030] In this preferred embodiment, the bottom of the wheel seat 1 is provided with a hinge groove 15, and hinge holes are provided on both sides of the hinge groove 15. The end of the hinge arm 3 away from the wheel frame 2 is provided with a connecting hole, and the hinge arm 3 extends into the hinge groove 15. A hinge shaft 4 is installed in the hinge hole. The hinge shaft 4 passes through the connecting hole and the hinge holes on both sides of the hinge groove 15, thereby realizing the hinge between the hinge arm 3 and the wheel seat 1, so that the wheel frame 2 can rotate in the receiving cavity 11 below the wheel seat 1 for shock absorption.

[0031] In this preferred embodiment, the anti-detachment structure includes an anti-detachment block 5, which is fixed to the outer side of the end of the hinge arm 3 away from the wheel frame 2. When the hinge arm 3 drives the wheel frame 2 to rotate outward toward the receiving cavity 11, the anti-detachment block 5 will contact and abut against the outer side of the wheel seat 1 to prevent the hinge arm 3 from continuing to rotate, thus ensuring that the wheel frame 2 will not detach from the receiving cavity 11.

[0032] In this preferred embodiment, a hidden groove 6 is provided on the wheel seat 1 relative to the anti-detachment block 5, and the anti-detachment block 5 is located in the hidden groove 6, so that the overall appearance of the outer side of the wheel seat 1 is neat and aesthetically pleasing.

[0033] In this preferred embodiment, the wheel seat 1 is provided with a first mounting cavity 9 above the receiving cavity 11, the first magnet 10 is installed in the first mounting cavity 9, the wheel frame 2 is provided with a second mounting cavity 7, and the second magnet 8 is installed in the second mounting cavity 7;

[0034] Specifically, by setting the first mounting cavity 9 and the second mounting cavity 7, the first magnet 10 and the second magnet 8 can be quickly positioned and installed, and their positions can be kept fixed.

[0035] In this preferred embodiment, the top of the wheel seat 1 is provided with a socket 14, so as to connect and install it with the housing through the socket 14.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A magnetic repulsion shock-absorbing roller frame, characterized in that: It includes a wheel seat and a wheel frame, a accommodating cavity is arranged below the wheel seat, the wheel frame is located in the accommodating cavity, and a hinged arm is connected to one side of the wheel frame, the hinged arm is hinged to the wheel seat, a first magnet is arranged above the accommodating cavity, a second magnet is arranged on the wheel frame, the first magnet and the second magnet have opposite same-sex sides, and a rotation guide structure and an anti-detachment structure for preventing the wheel frame from detaching from the accommodating cavity are arranged between the wheel seat and the wheel frame.

2. The magnetic repulsion shock-absorbing roller frame according to claim 1, characterized in that: The rotation guide structure comprises an arc groove arranged on the wheel seat and an arc block fixed on the wheel frame. When the articulated arm drives the wheel frame to rotate, the arc block extends into the arc groove.

3. The magnetic repulsion shock-absorbing roller frame according to claim 1, characterized in that: An articulation groove is provided at the bottom of the wheel seat, and articulation holes are provided on both sides of the articulation groove. A connecting hole is provided at the end of the articulation arm away from the wheel frame, and the articulation arm extends into the articulation groove. An articulation shaft is installed in the articulation hole, and the articulation shaft passes through the connecting hole and the articulation holes on both sides of the articulation groove.

4. The magnetic repulsion shock-absorbing roller frame according to claim 1, characterized in that: The anti-slip structure includes an anti-slip block, which is fixed to the outer side of one end of the articulated arm away from the wheel frame. When the articulated arm drives the wheel frame to rotate out of the accommodating cavity, the anti-slip block will contact and abut the outer side of the wheel seat to prevent the articulated arm from continuing to rotate.

5. The magnetic repulsion damping roller frame according to claim 4, characterized in that: A hidden groove is arranged on the wheel seat relative to the anti-dropping block, and the anti-dropping block is located in the hidden groove.

6. The magnetic repulsion shock-absorbing roller frame according to claim 1, characterized in that: The wheel seat is provided with a first installation cavity above the accommodating cavity, the first magnet is installed in the first installation cavity, the wheel frame is provided with a second installation cavity, and the second magnet is installed in the second installation cavity.

7. The magnetic repulsion shock-absorbing roller frame according to claim 1, characterized in that: The top of the wheel seat is provided with a plug hole.

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