Luggage trundle

Abstract

The utility model discloses a luggage trundle which comprises a trundle support and a trundle frame, a wheel shaft is arranged on the trundle frame, a wheel is arranged on the wheel shaft, an inserting hole is formed in the trundle support, an inserting shaft is inserted in the inserting hole in a pulling-out mode, one end of the inserting shaft is connected to the trundle frame, an annular groove is formed in the side face of the inserting shaft, and an installation groove extending in the radial direction of the inserting hole is formed in the trundle support. A first shifting hole is formed in the groove bottom of the mounting groove, an inner shifting block is slidably connected in the mounting groove, an outer shifting block connected with the inner shifting block is slidably connected in the first shifting hole, a first elastic piece is arranged in the mounting groove, a limiting plate is arranged on the inner shifting block, a limiting hole is formed in the limiting plate, and the limiting plate in a natural state is clamped in the annular groove; the wheel carrier comprises a fixed part and a movable part, one end of the movable part is hinged to the fixed part, a second elastic piece is arranged between the fixed part and the movable part, and the wheel shaft is arranged on the movable part. The trundle has the advantages of being convenient to disassemble and assemble, good in damping effect, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage accessories, and more specifically, to a luggage caster. Background Art

[0002] Most casters fixedly installed on suitcases on the market are not removable, which makes it difficult to repair and replace the casters after they are damaged; and most wheels installed on suitcase casters have a soft rubber outer layer, which can give the wheels a certain shock-absorbing function, but the shock-absorbing effect is limited and the overall effect is not good. Based on this, the utility model proposes a luggage caster. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a luggage caster which has the characteristics of easy assembly and disassembly and good shock absorption effect.

[0004] To solve the above technical problems, the purpose of the utility model is achieved in this way: a luggage caster involved in the utility model comprises a wheel support and a wheel frame, the wheel frame is provided with a wheel axle, the wheel axle is provided with a wheel, the wheel support is provided with a plug-in hole, a plug-in shaft that can be pulled out of the plug-in hole and rotated therein is provided, one end of the plug-in shaft is connected to the wheel frame, an annular groove is provided on the side of the plug-in shaft, the wheel support is provided with a mounting groove extending along the radial direction of the plug-in hole, a groove bottom of the mounting groove is provided with a first toggle hole extending along its length direction and passing through the wheel support, an inner toggle block is slidably connected in the mounting groove, an outer toggle block connected to the inner toggle block is slidably connected in the first toggle hole, a first elastic member is provided in the mounting groove, one end of the inner toggle block is against the inner toggle block, and the other end of the first elastic member is against the mounting groove wall, the inner toggle block is provided with a limit plate for follow-up, a limit hole is provided on the limit plate for the plug-in shaft to penetrate, and the limit plate in a natural state is stuck in the annular groove;

[0005] The wheel frame comprises a fixed part arranged at the top and a movable part arranged at the bottom, one end of the movable part is hinged to the fixed part, a second elastic member is arranged between the fixed part and the movable part, and the wheel axle is arranged on the movable part.

[0006] The utility model is further configured as follows: a locking groove perpendicular to the length direction of the mounting groove is provided on the wheel support, the locking groove is communicated with the mounting groove, a second toggle hole extending along the length direction and penetrating the wheel support is provided at the bottom of the locking groove, an inner locking block partially slidable into the mounting groove is slidably connected in the locking groove, an outer locking block connected to the inner locking block is slidably connected in the second toggle hole, and a limiting groove for inserting the inner locking block is provided on the side of the inner toggle block.

[0007] The utility model is further configured as follows: a gear protrusion is provided on the side surface of the inner locking block, and a first gear groove and a second gear groove matching the gear protrusion are provided on the groove wall of the locking groove.

[0008] The utility model is further configured as follows: the outer shifting block extends out of the first shifting hole; and the outer locking block extends out of the second shifting hole.

[0009] The utility model is further configured as follows: the first elastic member and the second elastic member are both compression springs.

[0010] In summary, the utility model has the following beneficial effects:

[0011] 1. The casters are easy to disassemble and assemble, and can be replaced easily after damage;

[0012] 2. The casters can be disassembled during shipping, which can reduce the packaging volume and the occupied logistics space.

[0013] 3. An elastic part is added between the fixed part and the movable part hinged thereto to give the caster good elasticity and a good shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 yes Figure 2 A partial structural diagram from another perspective;

[0017] Figure 4 This is a schematic diagram of the overall structure of the wheel support used in the utility model;

[0018] Figure 5 yes Figure 4 A schematic diagram of the structure from another perspective;

[0019] Figure 6 It is a partial structural schematic diagram of the utility model for reflecting the wheel support;

[0020] Figure 7 yes Figure 6 Schematic diagram of the structure without the limiting plate;

[0021] Figure 8 It is a schematic diagram of the local structure of the wheel support of the utility model. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0023] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0024] Example 1

[0025] See also Figures 1 to 8 As shown, a luggage caster involved in this embodiment includes a wheel support 1 and a wheel frame 2, the wheel frame 2 is provided with a wheel axle (not marked), the wheel axle is provided with a wheel 3, the wheel support 1 is provided with a plug hole 4, a plug shaft 5 that can be pulled out and rotated in the plug hole 4 is inserted, one end of the plug shaft 5 is connected to the wheel frame 2, and a side surface of the plug shaft 5 is provided with an annular groove 6, the wheel support 1 is provided with a mounting groove 7 extending along the radial direction of the plug hole, and the bottom of the mounting groove 7 is provided with a groove extending along its length direction and penetrating the The first shift hole 8 of the wheel support, the inner shift block 9 is slidably connected in the mounting groove 7, the outer shift block 10 connected to the inner shift block is slidably connected in the first shift hole 8, a first elastic member (not shown) is provided in the mounting groove 7, one end of which abuts against the inner shift block and the other end abuts against the wall of the mounting groove, the first elastic member is a compression spring, the inner shift block 9 is provided with a limit plate 12 for following, the limit plate 12 is provided with a limit hole 13 for the insertion of the plug shaft 5, and the limit plate 12 in a natural state is stuck in the annular groove 6;

[0026] The wheel frame 2 includes a fixed portion 201 arranged at the top and a movable portion 202 arranged at the bottom. One end of the movable portion 202 is hinged to the fixed portion 201. A second elastic member 203 is arranged between the fixed portion 201 and the movable portion 202. The second elastic member 203 is a compression spring. The wheel axle is arranged on the movable portion 202.

[0027] In this embodiment, when the wheel frame 2 and the wheel support 1 are in the connected state, the plug-in shaft 5 is inserted into the plug-in hole 4. Due to the elastic force generated by the elastic member, the limit plate 12 is away from the plug-in shaft 5. At this time, the limit hole 13 is not concentric with the plug-in hole 4, and the limit plate 12 is stuck in the annular groove 6, and the plug-in shaft 5 cannot be pulled out from the plug-in hole 4. If the wheel frame 2 and the wheel support 1 need to be separated, the outer shifting block 10 can be pushed toward the plug-in shaft 5, driving the inner shifting block 9 connected thereto to squeeze the first elastic member until the limit plate 12 moves with it, gradually disengaging the limit plate 12 stuck in the annular groove 6, until the limit hole 13 is concentric with the plug-in hole 4, and the plug-in shaft 5 can be pulled out from the plug-in hole 4.

[0028] When the wheel 3 is pressed, the wheel shaft and the movable portion 202 squeeze the second elastic member 203 until the second elastic member 203 is compressed and the movable portion 202 rotates relative to the fixed portion 201 to achieve the buffering and shock absorbing function.

[0029] Example 2

[0030] See also Figures 1 to 8 As shown, the luggage caster involved in this embodiment is further configured on the basis of Embodiment 1, that a locking groove 14 is provided on the wheel support 1 and is perpendicular to the length direction of the mounting groove 7, the locking groove 14 is communicated with the mounting groove 7, a second shifting hole 15 is provided at the bottom of the locking groove 14 and extends along its length direction and passes through the wheel support, an inner locking block 16 is slidably connected in the locking groove 14 and a part of it can also slide into the mounting groove, an outer locking block 17 connected to the inner locking block is slidably connected in the second shifting hole 15, and a limiting groove 18 is provided on the side of the inner shifting block 9 for inserting the inner locking block 16.

[0031] Furthermore, a shift protrusion 19 is provided on the side surface of the inner locking block 16, and a first shift groove 20 and a second shift groove 21 matching the shift protrusion are provided on the groove wall of the locking groove 14.

[0032] In this embodiment, when the plug-in shaft 5 cannot be pulled out from the plug-in hole 4, the side sliding outer locking block 17 can drive the inner locking block 16 connected to it to be inserted into the limit groove 18, until the inner shift block 9 cannot be moved in the installation groove 7, causing the limit plate 12 to be "locked".

[0033] The gear protrusion 19 cooperates with the first gear groove 20 and the second gear groove 21 to lock the position of the inner locking block 16 after the position adjustment is completed.

[0034] Example 3

[0035] See also Figures 1 to 8As shown, the luggage caster involved in this embodiment is further configured on the basis of Embodiments 1 and 2, wherein the outer shifting block 10 extends out of the first shifting hole 8 ; and the outer locking block 17 extends out of the second shifting hole 15 .

[0036] In this embodiment, the outer shifting block 10 is set to extend out of the first shifting hole 8 and the outer locking block 17 is set to extend out of the second shifting hole 15, so as to facilitate the manipulation and the shifting action.

[0037] The luggage caster involved in the utility model is easy to disassemble and assemble, and is convenient to replace after being damaged; the caster can be in a disassembled state during the transportation process, so that the packaging volume is reduced and the occupied logistics space is reduced; and an elastic part is added between the fixed part and the movable part hinged thereto, so that the caster is given good elasticity, the shock absorption effect is good, the overall function is perfect, and the practicability is strong.

[0038] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing 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 operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0039] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" 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.

[0040] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A luggage caster, comprising a wheel bracket and a wheel frame, the wheel frame is provided with a wheel axle, and the wheel axle is provided with a wheel, characterized in that: The wheel support is provided with a plug-in hole, in which a plug-in shaft can be pulled out and inserted for rotation therein, one end of the plug-in shaft is connected to the wheel frame, and a side surface of the plug-in shaft is provided with an annular groove, and the wheel support is provided with a mounting groove extending along the radial direction of the plug-in hole, and a groove bottom of the mounting groove is provided with a first toggle hole extending along its length direction and penetrating the wheel support, an inner toggle block is slidably connected in the mounting groove, and an outer toggle block connected to the inner toggle block is slidably connected in the first toggle hole, and a first elastic member is provided in the mounting groove, one end of which abuts against the inner toggle block and the other end abuts against the wall of the mounting groove, and a limiting plate is provided on the inner toggle block for follow-up, and a limiting hole is provided on the limiting plate for the insertion of the plug-in shaft, and the limiting plate in a natural state is stuck in the annular groove; The wheel frame comprises a fixed part arranged at the top and a movable part arranged at the bottom, one end of the movable part is hinged to the fixed part, a second elastic member is arranged between the fixed part and the movable part, and the wheel axle is arranged on the movable part.

2. The luggage caster according to claim 1, characterized in that: The wheel support is provided with a locking groove which is perpendicular to the length direction of the mounting groove, the locking groove is connected with the mounting groove, the bottom of the locking groove is provided with a second toggle hole which extends along the length direction and passes through the wheel support, an inner locking block which is slidably connected in the locking groove and can also be partially slid into the mounting groove, an outer locking block connected to the inner locking block is slidably connected in the second toggle hole, and a limiting groove for inserting the inner locking block is provided on the side of the inner toggle block.

3. The luggage caster according to claim 2, characterized in that: A gear protrusion is provided on the side surface of the inner locking block, and a first gear groove and a second gear groove matching the gear protrusion are provided on the groove wall of the locking groove.

4. The luggage caster according to claim 3, characterized in that: The outer shifting block extends out of the first shifting hole; and the outer locking block extends out of the second shifting hole.

5. The luggage caster according to any one of claims 1 to 4, characterized in that: The first elastic member and the second elastic member are both compression springs.

Images