Wheel assembly with locking structure

Abstract

The wheel assembly with the locking structure comprises a shell, a rolling wheel and a locking seat, a side shell is arranged on the peripheral wall of the shell, an inner cavity with an opening in the lower end is defined by the side shell, the rolling wheel is installed in the inner cavity in a pivoted mode, the locking seat is installed on the side shell in a sliding mode, the locking seat is provided with a pressing portion, and the pressing portion is arranged on the side shell. The abutting part can slide between the position abutting against the outer wall of the rolling wheel and the position far away from the rolling wheel. Compared with an existing structure, the shell is integrally formed, then the idler wheel is installed, finally the locking base is clamped on the side shell, the locking base can slide, locking of pivoting of the idler wheel is achieved through abutting of the abutting portion and the idler wheel, the structure is simple, and meanwhile assembling is convenient.

Description

Technical Field

[0001] This utility model relates to the field of rollers, and in particular to a wheel assembly with a locking structure. Background Technology

[0002] Rollers are frequently used in home furnishing products such as chairs, tables, and bags to enable the products to roll. Existing rollers generally have a locking structure to lock the roller's rotation. However, the existing locking structure is relatively complex, including complex molds and assembly. Since the cost of such products is generally low, the more complex the structure, the higher the cost per unit.

[0003] For example, Chinese patent CN202420648397.4 has many parts, so its cost is also higher in actual production. Utility Model Content

[0004] The main purpose of this invention is to propose a wheel assembly with a locking structure, which aims to improve the existing locking structure of rollers, making them easier to lock, while keeping the parts relatively simple.

[0005] To achieve the above objectives, this utility model proposes a wheel assembly with a locking structure, comprising:

[0006] A housing, wherein the outer peripheral wall of the housing is provided with side shells, and the side shells form an inner cavity with an opening at the lower end;

[0007] Roller, the roller being pivotally mounted in the inner cavity;

[0008] A locking seat is slidably mounted on the side shell. The locking seat is provided with a pressing part. When the locking seat slides, the pressing part can slide between a position abutting against the outer wall of the roller and a position away from the roller.

[0009] Compared with existing structures, the new design features a one-piece molded housing, rollers installed, and a locking seat attached to the side shell, allowing it to slide. The locking of the rollers' pivoting is achieved by the abutting part against the rollers. This design is simple in structure and easy to assemble. Attached Figure Description

[0010] Figure 1 This is an exploded view of the present invention;

[0011] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0012] Figure 3 This is a sectional view of the present invention in the height direction;

[0013] Figure 4 This is a diagram illustrating the locking mechanism switching;

[0014] Figure 5 This is a 3D schematic diagram of the locking seat;

[0015] Figure 6 This is a three-dimensional schematic diagram of the shell.

[0016] In the picture,

[0017] 1 is the outer shell, 10 is the side shell, 11 is the opening, and 12 is the inner cavity.

[0018] 2 is a roller, 20 is a pivot seat, 21 is a groove, 22 is a locking part, and 23 is a rotating shaft.

[0019] 3 is the locking seat, 30 is the pressing part, 31 is the deformation block, and 32 is the button part.

[0020] 41 is the guide slide, and 42 is the guide slide groove.

[0021] 51 is the limiting groove, 52 is the limiting part, and 5 is the notch.

[0022] 6 represents the positioning seat, and 60 represents the ball bearing. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0026] like Figures 1 to 6 As shown, a wheel assembly with a locking structure includes,

[0027] The housing 1 has a side shell 10 on its outer peripheral wall, and the side shell 10 forms an inner cavity 12 with an opening 11 at the lower end.

[0028] Roller 2, which is pivotally mounted in the inner cavity 12;

[0029] Locking seat 3 is slidably mounted on side shell 10. Locking seat 3 is provided with pressing part 30, which can slide between a position abutting against the outer wall of roller 2 and a position away from roller 2.

[0030] Compared with the existing structure, the one-piece molded housing 1, then the roller 2 is installed, and finally the locking seat 3 is locked onto the side shell 10, so that it can slide. Then, the roller pivot is locked by the abutment of the pressing part 30 against the roller. Its structure is simple and easy to assemble.

[0031] Specifically, the lower wall of the housing 1 is provided with a pivot seat 20, which is offset from the axis of the housing 1. The roller 2 is provided with a rotating shaft 23, which is installed on the pivot seat 20, thereby realizing the assembly of the wheel assembly. The installation is achieved by using a locking mechanism.

[0032] In this embodiment of the utility model, the lower wall of the pivot seat 20 is provided with a groove 21, and the lower end of the groove 21 is provided with a locking part 22. The rotating shaft 23 extends into the groove 21 and is limited by the locking part 22, making installation more convenient.

[0033] Specifically, the inner wall of the side shell 10 is provided with a deformation block 31 extending toward the axis. When the wall surface of the locking seat 3 abuts against the outer wall of the deformation block 31, the locking seat 3 deforms and forces the pressing part 30 to deform toward the axis, so that the end of the pressing part 30 abuts against the outer wall of the roller.

[0034] In another embodiment, a deformation block 31 may be provided on the rear wall of the pressing part 30, and a groove 21 may be provided on the inner wall of the side shell 10 to unlock the pressing part 30.

[0035] The deformation block 31 can be a gradual transition or a stepped structure.

[0036] In this embodiment of the utility model, the side shell 10 is circular in shape, and the side shell 10 is provided with guide grooves 42 distributed along its length direction. The locking seat 3 is slidably installed in the guide grooves 42, thereby realizing the sliding of the locking seat 3 and making its structure simpler.

[0037] Specifically, the locking seat 3 includes a main body (the main body can be integrally formed or separately installed) and a guide slide part 41 located in the middle of the main body. The guide slide part 41 cooperates with the guide slide groove 42 and can slide along the length direction of the guide slide groove 42, thereby realizing the installation and limiting of the locking seat 3. In this application, the side shell 10 is provided with a notch 5 that communicates with the guide slide groove 42. Alternatively, it can be a detachable structure, for example, the main body is composed of two parts, with an inner pressing part 30 and an outer button part 32, which are connected by screws.

[0038] In this embodiment of the utility model, the height of both sides of the main body is greater than the height of the guide slide 41. The inner side of the guide slide 41 is the pressing part 30, and the outer side is the button part 32.

[0039] Specifically, the pressing part can be an integral structure or a partially extended structure (as shown in the figure).

[0040] The inner side of the button part 32 is provided with a limiting part 52, and the side shell 10 is provided with at least two limiting grooves 51 at the position of the guide groove 42. The limiting grooves 51 are used to limit the locking seat 3, that is, the locking position and the unlocking position.

[0041] Specifically, the pressing part 30, the button part 32 and the guide slide part 41 are integrally formed; the side shell 10 is provided with a notch 5 that connects to the guide slide groove 42, and the width of the notch 5 is suitable for the width of the guide slide part 41, that is, it is directly engaged. The length of the pressing part 30 has a predetermined requirement, thereby preventing it from disengaging from the guide slide groove 42.

[0042] In this embodiment of the utility model, the pressing part 30 and the button part 32 are connected by a screw. The screw passes through the guide groove 42 and is connected to the pressing part 30. The screw forms the guide part 41. Through the two connection methods, the pressing part 30 is formed.

[0043] The pressing part 30 is fan-shaped.

[0044] Specifically, the upper wall of the housing 1 is provided with a positioning seat 6, the housing 1 and the positioning seat 6 are pivotally connected, and the two rotate relative to each other in the horizontal direction. A ball groove is provided between the lower wall of the positioning seat 6 and the upper wall of the housing 1, and the ball groove is provided with balls 60.

[0045] The positioning seat 6 is used to connect with the corresponding product, such as by using a screw or by directly snapping the positioning seat 6 into the slot of the product.

[0046] The positioning seat 6 can be a plate-like structure as described in this application or a shell-like structure, such as being compatible with the shell 1 and covering the outer wall of the shell 1.

[0047] The ball groove can be set individually or in a closed loop, thereby enabling the horizontal rotation of the positioning seat 6 and the housing 1, thus realizing the function of the universal wheel.

[0048] The positioning seat is provided with a downwardly positioned hook, and the middle part of the housing 1 is provided with a locking hole. The hook and the locking hole are pivotally connected, which is simple in structure and easy to install.

[0049] The bead groove can be composed of two half-grooves.

[0050] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A wheel assembly with a locking structure, characterized in that, include, A housing, wherein the outer peripheral wall of the housing is provided with side shells, and the side shells form an inner cavity with an opening at the lower end; Roller, the roller being pivotally mounted in the inner cavity; A locking seat is slidably mounted on the side shell. The locking seat is provided with a pressing part, which can slide between a position abutting against the outer wall of the roller and a position away from the roller.

2. The wheel assembly with a locking structure as described in claim 1, characterized in that: The lower wall of the housing is provided with a pivot seat, which is offset from the axis of the housing. The roller is provided with a rotating shaft, which is mounted on the pivot seat.

3. The wheel assembly with a locking structure as described in claim 2, characterized in that: The lower wall of the pivot seat is provided with a groove, and the lower end of the groove is provided with a locking part. The rotating shaft extends into the groove and is limited by the locking part.

4. The wheel assembly with a locking structure as described in claim 1, characterized in that: The inner wall of the side shell is provided with a deformation block extending toward the axis. When the wall surface of the locking seat abuts against the outer wall of the deformation block, the locking seat deforms and forces the pressing part to deform toward the axis, so that the end of the pressing part abuts against the outer wall of the roller.

5. The wheel assembly with a locking structure as described in claim 1, characterized in that: The side shell is circular in shape and has guide grooves distributed along its length. The locking seat is slidably installed in the guide grooves.

6. The wheel assembly with a locking structure as described in claim 5, characterized in that: The locking seat includes a main body and a guide slide part located in the middle of the main body. The guide slide part cooperates with the guide slide groove and can slide along the length direction of the guide slide groove.

7. The wheel assembly with a locking structure as described in claim 6, characterized in that: The height of the two sides of the main body is greater than the height of the guide slide. The inner side of the guide slide is the pressing part, and the outer side is the button part. The inner side of the button is provided with a limiting part, and the side shell is provided with at least two limiting grooves at the position of the guide groove.

8. The wheel assembly with a locking structure as described in claim 7, characterized in that: The pressing part, the button part, and the guide slide part are integrally formed; The side shell has a notch that connects to the guide groove, and the width of the notch is appropriate for the width of the guide part.

9. The wheel assembly with a locking structure as described in claim 7, characterized in that: The pressing part and the button part are connected by a screw. The screw passes through the guide groove and connects to the pressing part, forming the guide part.

10. The wheel assembly with a locking structure as described in claim 7, characterized in that: The upper wall of the housing is provided with a positioning seat, and the housing and the positioning seat are pivotally connected. The two housings rotate relative to each other in the horizontal direction. A ball groove is provided between the lower wall of the positioning seat and the upper wall of the housing, and the ball groove is provided with rolling balls.

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