Replaceable trundle

Abstract

The utility model discloses a replaceable trundle, and belongs to the technical field of luggage accessories. The trundle comprises a trundle body, the trundle body comprises a connecting base, a rolling wheel and a trundle frame, the rolling wheel is rotationally connected to the trundle frame, a rotating body is rotationally connected to the connecting base, an inserting groove for the rotating body to be embedded in is formed in the trundle frame, and the rotating body is detachably connected into the inserting groove through a connecting mechanism. By means of the connecting mechanism, the rotating body can be detachably connected into the inserting groove, the rotating body can be connected with the connecting base, meanwhile, the rotating body can be taken out of the inserting groove, detachable connection between the wheel frame and the connecting base and between the rolling wheel and the connecting base is achieved in the mode, and the wheel frame and the rolling wheel can be replaced.

Description

Technical Field

[0001] This utility model relates to the field of luggage accessories technology, and in particular to a replaceable caster. Background Technology

[0002] Plastic casters are commonly used for bottom support of various bags and luggage, enabling them to be dragged. However, because casters need to roll on various terrains, they are very prone to wear and tear. At the same time, the wheel frame used to install the casters is also easily damaged by impacts during dragging. Therefore, a new type of caster is needed to solve this problem. Utility Model Content

[0003] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a replaceable caster.

[0005] To achieve the above objectives, the technical solution of this utility model is: a replaceable caster, including a caster body, the caster body including a connecting seat, a roller and a wheel frame, the roller being rotatably connected to the wheel frame, a rotating body being rotatably connected to the connecting seat, and a slot for the rotating body to be inserted into the wheel frame, the rotating body being detachably connected to the slot through a connecting mechanism.

[0006] By adopting the above technical solution, the connecting mechanism enables the rotating body to be disassembled and connected in the slot, allowing the rotating body to be connected to the connecting seat. At the same time, the rotating body can also be removed from the slot. In this way, the wheel frame and roller can be disassembled and connected to the connecting seat, allowing the wheel frame and roller to be replaced.

[0007] Preferably, the connecting mechanism includes a snap-fit ​​component and an elastic component. The snap-fit ​​component is slidably connected to the rotating body, and the elastic component is disposed between the snap-fit ​​component and the rotating body. The wheel frame has a slot for inserting the snap-fit ​​component. This invention utilizes the cooperation between the snap-fit ​​component and the elastic component to keep the snap-fit ​​component inserted into the slot, thereby fixing the rotating body within the slot of the wheel frame. By pressing the snap-fit ​​component to overcome the elastic force of the elastic component and disengage it from the slot, the fixing of the rotating body can be released.

[0008] Preferably, the snap-fit ​​component has limit hooks on both sides, and the wheel frame has limit grooves on both sides of the snap-fit ​​component, with the limit hooks engaging in the limit grooves. In this invention, the limit hooks engage in the limit grooves and can slide within the grooves as the snap-fit ​​component slides. The limit grooves restrict the sliding range of the limit hooks, preventing the snap-fit ​​component from detaching from the rotating body. During installation, the deformation of the limit hooks themselves allows them to engage in the limit grooves.

[0009] Preferably, the upper end face of the snap-fit ​​component is provided with an inclined surface. This invention utilizes the inclined surface to allow the rotating body to slide into the slot, where the wheel frame pushes the snap-fit ​​component, causing it to retract into the rotating body under the action of the inclined surface. Then, when the snap-fit ​​component is aligned with the slot, it snaps into the slot under the elastic force of the elastic element.

[0010] Preferably, the slot has a chamfer at the entrance. This invention utilizes the chamfer at the slot entrance to facilitate the sliding of the rotating body into the slot.

[0011] Preferably, the wheel frame has an inclined groove for guiding the snap-fit ​​component into the slot. This invention utilizes the inclined groove to guide the snap-fit ​​component to align with the slot, ensuring that the snap-fit ​​component does not deviate from the slot when the rotating body is inserted into the slot, as it is initially positioned within the inclined groove.

[0012] Preferably, the rotating body has a guide groove, and a guide member matching the shape of the guide groove is fixedly connected to the bottom of the slot. This invention utilizes the cooperation of the guide groove and the guide member to ensure a tight fit between the rotating body and the wheel frame, reducing the swaying gap between them and thus preventing reduced lifespan due to swaying.

[0013] Preferably, the upper end surface of the rotating body is provided with a second inclined groove at the guide groove. This invention utilizes the second inclined groove to allow the guide member to slide accurately into the guide groove.

[0014] Preferably, the rotating body is rotatably connected to the connecting seat via a bearing. This invention utilizes bearings to make the rotation of the rotating body smoother.

[0015] Preferably, the connecting seat has several bolt holes. This invention uses these bolt holes to allow the connecting seat to be fixed to the bag or luggage.

[0016] In summary, the beneficial effects of this utility model are:

[0017] 1. The connecting mechanism allows the rotating body to be detached and connected in the slot, enabling the rotating body to connect with the connecting seat, and also allows the rotating body to be removed from the slot. In this way, the wheel frame and roller can be detached and connected to the connecting seat, allowing the wheel frame and roller to be replaced.

[0018] 2. The inclined plane allows the rotating body to slide into the slot. The wheel frame pushes the snap-fit ​​component into the rotating body under the action of the inclined plane. When the snap-fit ​​component is aligned with the slot, it is snapped into the slot under the elastic force of the elastic component. The inclined groove guides the snap-fit ​​component to align with the slot. When the rotating body is inserted into the slot, the snap-fit ​​component will not deviate from the slot at the limit of the inclined groove. These structures make it easy for the snap-fit ​​component to snap into the slot.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0020] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0021] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting mechanism;

[0027] Figure 3 This is a schematic diagram of the connector structure;

[0028] Figure 4 This is a schematic diagram of the internal structure of the slot;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the body of revolution.

[0030] Explanation of main reference numerals in the attached drawings: 1. Connecting seat; 2. Roller; 3. Wheel frame; 4. Rotating body; 5. Slot; 6. Snap-fit ​​component; 7. Elastic component; 8. Snap groove; 9. Limiting hook; 10. Limiting groove; 11. Inclined surface; 12. Chamfer; 13. Inclined groove one; 14. Guide groove; 15. Guide component; 16. Inclined groove two; 17. Bearing; 18. Bolt hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0032] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or 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. Therefore, they should not be construed as limitations on this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] like Figure 1-5 As shown, a replaceable caster includes a caster body, which includes a connecting seat 1, a roller 2, and a wheel frame 3. The roller 2 is rotatably connected to the wheel frame 3. A rotating body 4 is rotatably connected to the connecting seat 1. The wheel frame 3 is provided with a slot 5 for the rotating body 4 to be inserted. The rotating body 4 is detachably connected to the slot 5 through a connecting mechanism.

[0036] By adopting the above technical solution, the connecting mechanism enables the rotating body 4 to be disassembled and connected to the slot 5, allowing the rotating body 4 to be connected to the connecting seat 1. At the same time, the rotating body 4 can also be removed from the slot 5. In this way, the wheel frame 3 and the roller 2 can be disassembled and connected to the connecting seat 1, so that the wheel frame 3 and the roller 2 can be replaced.

[0037] The connecting mechanism includes a snap-fit ​​element 6 and an elastic element 7. The snap-fit ​​element 6 is slidably connected to the rotating body 4, and the elastic element 7 is disposed between the snap-fit ​​element 6 and the rotating body 4. The wheel frame 3 has a slot 8 for the snap-fit ​​element 6 to be inserted. By utilizing the cooperation between the snap-fit ​​element 6 and the elastic element 7, the snap-fit ​​element 6 can be kept inserted into the slot 8, thereby fixing the rotating body 4 in the slot 5 of the wheel frame 3. By pressing the snap-fit ​​element 6 to overcome the elastic force of the elastic element 7 and disengage it from the slot 8, the fixing of the rotating body 4 can be released.

[0038] The snap-fit ​​component 6 has limit hooks 9 on both sides, and the wheel frame 3 has limit grooves 10 on both sides of the snap-fit ​​component 6. The limit hooks 9 are engaged in the limit grooves 10. The limit hooks 9 are engaged in the limit grooves 10 and can slide within the limit grooves 10 as the snap-fit ​​component 6 slides. The limit grooves 10 can limit the sliding range of the limit hooks 9, so that the snap-fit ​​component 6 will not detach from the rotating body 4. When installing the snap-fit ​​component 6, the limit hooks 9 can be engaged in the limit grooves 10 by their own deformation.

[0039] The upper end face of the snap-fit ​​6 is provided with an inclined surface 11. The inclined surface 11 allows the rotating body 4 to slide into the slot 5, and the snap-fit ​​6 is pushed by the wheel frame 3 to retract into the rotating body 4 under the action of the inclined surface 11. When the snap-fit ​​6 is aligned with the slot 8, it is snapped into the slot 8 under the elastic force of the elastic member 7.

[0040] The entrance of slot 5 is chamfered 12. The chamfer 12 at the entrance of slot 5 facilitates the sliding of the rotating body 4 into slot 5.

[0041] The wheel frame 3 has an inclined groove 13 for guiding the snap-fit ​​6 into the slot 8. The inclined groove 13 guides the snap-fit ​​6 to align with the slot 8, and when the rotating body 4 is inserted into the slot 5, the snap-fit ​​6 will not deviate from the slot 8 at the limit of the inclined groove 13.

[0042] The rotating body 4 has a guide groove 14, and a guide member 15 that matches the shape of the guide groove 14 is fixedly connected to the bottom of the slot 5. By using the cooperation of the guide groove 14 and the guide member 15, the rotating body 4 and the wheel frame 3 can be tightly fitted, reducing the sway gap between the rotating body 4 and the wheel frame 3, thereby avoiding the reduction of the life of the rotating body 4 and the wheel frame 3 due to sway.

[0043] The upper end face of the rotating body 4 is provided with a second inclined groove 16 at the guide groove 14. The second inclined groove 16 allows the guide 15 to slide accurately into the guide groove 14.

[0044] The rotating body 4 is rotatably connected to the connecting seat 1 via the bearing 17. The bearing 17 makes the rotation of the rotating body 4 smoother.

[0045] The connector 1 has several bolt holes 18. The bolt holes 18 allow the connector 1 to be fixed to the bag.

[0046] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A replaceable caster, comprising a caster body, characterized in that: The caster body includes a connecting seat (1), a roller (2) and a wheel frame (3). The roller (2) is rotatably connected to the wheel frame (3). A rotating body (4) is rotatably connected to the connecting seat (1). A slot (5) is provided on the wheel frame (3) for the rotating body (4) to be inserted. The rotating body (4) is detachably connected to the slot (5) through a connecting mechanism.

2. The replaceable caster according to claim 1, characterized in that: The connecting mechanism includes a snap-fit ​​member (6) and an elastic member (7). The snap-fit ​​member (6) is slidably connected to the rotating body (4). The elastic member (7) is disposed between the snap-fit ​​member (6) and the rotating body (4). The wheel frame (3) has a slot (8) for the snap-fit ​​member (6) to be inserted.

3. The replaceable caster according to claim 2, characterized in that: The snap-fit ​​component (6) is provided with limit hooks (9) on both sides, and the wheel frame (3) is provided with limit grooves (10) on both sides of the snap-fit ​​component (6), and the limit hooks (9) are snapped into the limit grooves (10).

4. The replaceable caster according to claim 3, characterized in that: The upper end face of the snap-fit ​​component (6) is provided with a bevel (11).

5. The replaceable caster according to claim 1, characterized in that: The slot (5) has a chamfer (12) at its entrance.

6. The replaceable caster according to claim 3, characterized in that: The wheel frame (3) has an inclined groove (13) for guiding the snap-fit ​​(6) into the snap-fit ​​groove (8).

7. The replaceable caster according to claim 1, characterized in that: The rotating body (4) has a guide groove (14), and the bottom of the slot (5) is fixedly connected to a guide (15) that matches the shape of the guide groove (14).

8. The replaceable caster according to claim 7, characterized in that: The upper end face of the rotating body (4) is provided with a second inclined groove (16) at the guide groove (14).

9. The replaceable caster according to claim 1, characterized in that: The rotating body (4) is rotatably connected to the connecting seat (1) via a bearing (17).

10. The replaceable caster according to claim 1, characterized in that: The connecting seat (1) has several bolt holes (18).

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