Universal wheel with braking function

Abstract

The utility model provides a universal wheel with a braking function, which comprises a mounting body and a steering structure arranged on the mounting body. The mounting space is formed in the mounting body and is opposite to the steering structure; the wheel body is arranged in the mounting space; one end of the brake part is rotatably arranged in the mounting space, and the other end of the brake part penetrates through the side wall of the mounting body and is arranged outside the mounting body; in a braking state, one end of the braking part is in contact with the wheel body; according to the technical scheme, the universal wheel with the braking function is simple in structure, the wheel body can be limited through the braking part under the condition that normal use is not affected, and then the wheel body stops acting in the running process or does not roll in the static state; and rollover caused by careless operation can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of universal wheels, in particular to a universal wheel with a braking function. Background Art

[0002] The movable caster is often called a universal wheel because its structure can achieve 360-degree horizontal rotation. It is placed at the bottom of a chair or cart as an auxiliary component for support and movement during use; and can be used in conjunction with a chair or cart under human power.

[0003] When the universal wheel in the prior art is used with a chair or a cart, it is often parked or braked as needed; however, due to structural limitations, external components are required to cooperate to limit the rolling of the universal wheel, such as leaning against a wall or blocking the universal wheel with a wedge; and this method requires multiple operations to complete. If the operation is not careful, the chair or cart may tip over, and in severe cases, it may hit nearby objects or people, causing damage to the objects or injuries to people; therefore, a universal wheel structure is needed to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide a universal wheel with a braking function, which can solve the above technical problems;

[0005] The utility model provides a universal wheel with a braking function, comprising:

[0006] A mounting body and a steering structure, wherein the steering structure is arranged on the mounting body;

[0007] The installation space is provided in the installation body and is arranged opposite to the steering structure;

[0008] A wheel body is arranged in the installation space;

[0009] The brake part has one end rotatably arranged in the installation space, and the other end passes through the side wall of the installation body and is placed outside the installation body; and in the braking state, one end of the brake part contacts the wheel body.

[0010] As a further technical solution, the steering structure includes:

[0011] The steering group is arranged in a mounting groove provided on the mounting body;

[0012] The steering cover is connected to the mounting body and restricts the steering group within the mounting groove.

[0013] Preferably, the steering group includes a plurality of steering balls.

[0014] As a further technical solution, a connecting hole is provided on the steering cover, and the connecting hole is clamped with a limiting column provided on the mounting body.

[0015] Preferably, a plurality of fixing holes are provided on the steering cover.

[0016] As a further technical solution, a first clamping portion and a second clamping portion are provided in the installation space, the first clamping portion and the second clamping portion are arranged opposite to each other, and the wheel body is arranged on the first clamping portion and the second clamping portion.

[0017] As a further technical solution, the brake unit includes:

[0018] A brake body is rotatably disposed in the installation space;

[0019] One end of the operating handle is connected to the brake body, and the other end passes through the side wall of the installation body and is placed outside the installation body.

[0020] As a further technical solution, an operating groove is provided on the side wall of the installation body, and the other end of the operating handle passes through the operating groove and is placed outside the installation body.

[0021] Preferably, the brake body is a rectangular brake body.

[0022] As a further technical solution, a third clamping part is provided in the installation body, a first limiting groove is provided on the third clamping part, a second limiting groove is provided on the first clamping part, and both ends of the brake body are respectively provided in the first limiting groove and the second limiting groove.

[0023] The technical solution of the utility model is connected with the outside through a steering structure, and can maintain connection with the outside when the mounting body and the wheel body rotate during the use stage. At the same time, the brake part can rotate in the installation space. During the normal driving stage, the brake part has no contact with the wheel body. When braking is needed, the brake part is operated to make the brake part contact with the wheel body, and then under the action of the friction force between the brake part and the wheel body, the wheel body is restricted from rolling through the brake part. Compared with the prior art, the technical solution of the utility model has a simple structure, and can restrict the wheel body through the brake part without affecting normal use, so that the wheel body stops moving during driving or stops rolling in a stationary state; it can avoid rollover due to careless operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a three-dimensional diagram of a universal wheel with a braking function according to the utility model;

[0026] Figure 2 This is a structural schematic diagram of a universal wheel with a braking function according to the utility model;

[0027] Figure 3 It is a schematic diagram of the structure after the installation body, steering group, wheel body and brake part of the utility model are assembled;

[0028] Figure 4 for Figure 3 Cross-sectional view of the AA section;

[0029] Figure 5 It is a structural schematic diagram of the steering cover;

[0030] Figure 6 for Figure 5 Cross-sectional view of the middle BB part;

[0031] Figure 7 is a three-dimensional diagram of a steering cover;

[0032] Figure 8 A three-dimensional view of the steering cover from another angle;

[0033] Fig. 9 is a three-dimensional diagram of the installation body;

[0034] Fig.10 A three-dimensional diagram of the installation body from another angle;

[0035] Fig.11 This is a three-dimensional diagram of the assembled mounting body, steering group, wheel body and brake unit;

[0036] Fig.12 A three-dimensional view of the mounting body, steering group, wheel body and brake unit after assembly from another angle;

[0037] Fig.13 is a three-dimensional diagram of the brake unit;

[0038] Fig.14 A three-dimensional diagram of the wheel body.

[0039] Description of reference numerals:

[0040] 1-installation body; 11-installation slot; 12-limiting column; 13-operating slot; 2-steering structure; 21-steering group; 22-steering cover; 221-cover body; 222-limiting ring; 223-fixing hole; 23-connecting hole; 3-installation space; 31-first clamping part; 32-second clamping part; 33-third clamping part; 341-first limiting slot; 342-second limiting slot; 4-wheel body; 5-brake part; 51-brake body; 52-operating handle. DETAILED DESCRIPTION

[0041] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "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 mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] like Figure 1-14 As shown, the utility model provides a universal wheel with a braking function, comprising:

[0045] The mounting body 1 and the steering structure 2, the steering structure 2 is arranged on the mounting body 1; it should be noted that the steering structure 2 is also connected to an external device (a chair or a cart, etc.), and the mounting body 1 is further connected to the outside through the steering structure 2;

[0046] The installation space 3 is opened in the installation body 1 and is arranged opposite to the steering structure 2; the wheel body 4 is arranged in the installation space 3; one end of the brake part 5 is rotatably arranged in the installation space 3, and the other end passes through the side wall of the installation body 1 and is placed outside the installation body 1; and in the braking state, one end of the brake part 5 is in contact with the wheel body 4; after being connected to the outside through the steering structure 2, the installation body 1, the wheel body 4 and the brake part 5 can be indirectly placed on the external equipment; during use, it is supported and rolled by the wheel body 4; when braking is required, the brake part 5 is operated, and the braking of the wheel body 4 is completed through the contact between the brake part 5 and the wheel body 4;

[0047] It should be noted that the number of universal wheels is different in different situations; the present invention does not limit this and the specific situation shall prevail.

[0048] As shown in 7-12, the steering structure 2 includes a steering group 21 and a steering cover 22. The steering group 21 is arranged in the mounting groove 11 opened on the mounting body 1; the steering cover 22 is connected to the mounting body 1 and limits the steering group 21 in the mounting groove 11; after the steering cover 22 is connected to the external device, the steering cover 22 is in a fixed state, and the mounting body 1 can be rotated on the steering cover 22; and in the process of the mounting body 1 rotating, the steering group 21 can buffer the friction between the steering cover 22 and the mounting body 1. Specifically, the steering group 21 includes a plurality of steering balls; the friction between the steering cover 22 and the mounting body 1 is buffered by the cooperation between the plurality of balls; in the utility model, the steering ball can be a metal ball or a plastic ball; the specific situation shall prevail, and the utility model does not further limit this;

[0049] like Figure 7 and 9 As shown, the steering cover 22 is provided with a connecting hole 23, and the connecting hole 23 is engaged with the limiting column 12 provided on the mounting body 1; when the steering cover 22 is connected to the mounting body 1, the mounting body 1 can rotate with the limiting column 12 as the axis; in addition, in the utility model, a plurality of balls are surrounded by the limiting column 12 with the limiting column 12 as the center; and are placed in the mounting groove 11 at the same time; in this way, the plurality of balls will not be offset during the rotation of the mounting body 1; at the same time, the utility model In the new model, the steering cover 22 includes a cover body 221 and a limiting ring 222. The connecting hole 23 is arranged on the cover body 221, and is clamped with the limiting column 12 through the cover body 221. In addition, the limiting ring 222 is adapted to the mounting groove 11. When the cover body 221 is clamped with the limiting column 12, the limiting ring 222 covers the mounting groove 11, so that the plurality of balls are placed in the mounting groove 11 and the limiting ring 222. In this way, during the rotation of the mounting body 1, the plurality of balls will not be separated from the mounting groove 11.

[0050] like Figure 7 and 8As shown, the steering cover 22 is provided with a plurality of fixing holes 223; the number of the fixing holes 223 is set according to actual conditions, and preferably four fixing holes 223 are provided in the utility model; when the steering cover 22 needs to be fixed to the outside, it is connected to the external device by passing bolts or screws through the fixing holes 223.

[0051] like Fig.10 and Fig.12 As shown, a first clamping portion 31 and a second clamping portion 32 are provided in the installation space 3, and the first clamping portion 31 and the second clamping portion 32 are arranged opposite to each other, and the wheel body 4 is arranged on the first clamping portion 31 and the second clamping portion 32; specifically, a clamping groove is provided on the first clamping portion 31 and the second clamping portion 32; and an arc-shaped surface is provided at the opening end of the clamping groove; it is convenient for the wheel body 4 to enter between the first clamping portion 31 and the second clamping portion 32; at the same time, a convex portion is provided at the opening end to form a rotation groove in the clamping groove, and when the wheel body 4 is installed, it is restricted in the rotation groove, which is convenient for the wheel body 4 to rotate during use; specifically, a wheel axle is provided on the wheel body 4, and when the wheel body 4 is installed, the wheel axle is respectively clamped with the clamping grooves on the first clamping portion 31 and the second clamping portion 32; due to the existence of the convex portion, the wheel axle is respectively placed in the rotation grooves on the first clamping portion 31 and the second clamping portion 32, and the wheel axle rotates in the rotation groove during the use stage;

[0052] like Fig.13 As shown, the brake part 5 includes a brake body 51 and an operating handle 52. The brake body 51 is rotatably arranged in the installation space 3; one end of the operating handle 52 is connected to the brake body 51, and the other end passes through the side wall of the installation body 1 and is placed outside the installation body 1; during the use stage, when braking is required, the operating handle 52 is moved to drive the brake body 51 to rotate in the installation space 3. When it rotates to a certain angle, the brake body 51 contacts the wheel body 4 and stops the wheel body 4 from rotating under the action of friction; Fig.10 As shown in FIG. 12 , an operating groove 13 is provided on the side wall of the mounting body 1 , and the other end of the operating handle 52 passes through the operating groove 13 and is placed outside the mounting body 1 ; when the operating handle 52 is operated, the operating handle 52 can move in the operating groove 13 ;

[0053] like Fig.13 As shown, the brake body 51 can be shaped as required. In the present invention, the brake body 51 is preferably a rectangular brake body 51; one side of the rectangular brake body 51 is connected to the operating handle 52; when braking is required, the operating handle 52 rotates to make the common side between the two adjacent sides contact the wheel body 4 and restrict the wheel body 4 from rolling;

[0054] like Fig.10 , 12As shown in Figure 13, a third clamping portion 33 is provided in the mounting body 1, a first limiting groove 341 is provided on the third clamping portion 33, a second limiting groove 342 is provided on the first clamping portion 31, and both ends of the brake body 51 are respectively provided in the first limiting groove 341 and the second limiting groove 342; specifically, protruding columns are provided at both ends of the brake body 51, and the brake body 51 is arranged between the third clamping portion 33 and the first clamping portion 31 by respectively clamping the protruding columns with the first limiting groove 341 and the second limiting groove 342; when the operating handle 52 is operated, the brake body 51 rotates around the axis of the protruding columns at both ends; as shown in Figure 13, a third clamping portion 33 is provided in the mounting body 1, and a first limiting groove 341 and a second limiting groove 342 are provided on the first clamping portion 33; Fig.10 As shown, the first limiting groove 341 and the second limiting groove 342 are divided into two sections; the first section is a circular groove with the same diameter as the boss, and the second section is a rectangular groove connected to the circular groove; and the width of the rectangular groove is less than the diameter length of the boss; in this way, after the brake head is connected, the boss can be better arranged between the first clamping portion 31 and the third clamping portion 33 to avoid the brake body 51 from falling off.

[0055] It should be noted that the mounting body 1, steering structure 2, wheel body 4 and brake part 5 in the present invention can be made of plastic or metal; but it is necessary to ensure that the selected material has a certain deformation ability to ensure that the various components can be installed; the present invention does not further limit this.

[0056] The technical solution of the utility model is connected with the outside through the steering structure 2, and can maintain connection with the outside when the mounting body and the wheel body rotate during the use stage. At the same time, the brake part can rotate in the installation space. During the normal driving stage, the brake part has no contact with the wheel body. When braking is needed, the brake part is operated to make the brake part contact with the wheel body, and then under the action of the friction force between the brake part and the wheel body, the wheel body is restricted from rolling through the brake part. Compared with the prior art, the technical solution of the utility model has a simple structure, and can restrict the wheel body through the brake part without affecting normal use, so that the wheel body stops moving during driving or stops rolling in a stationary state; it can avoid rollover due to careless operation.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A universal wheel with a braking function, characterized in that: include: A mounting body (1) and a steering structure (2), wherein the steering structure (2) is arranged on the mounting body (1); An installation space (3) is provided in the installation body (1) and is arranged opposite to the steering structure (2); A wheel body (4) is arranged in the installation space (3); A brake part (5) has one end rotatably arranged in the installation space (3) and the other end passing through the side wall of the installation body (1) and placed outside the installation body (1); and in a braking state, one end of the brake part (5) contacts the wheel body (4).

2. The universal wheel with braking function according to claim 1, characterized in that: The steering structure (2) comprises: A steering group (21) is arranged in a mounting groove (11) provided on the mounting body (1); A steering cover (22) is connected to the mounting body (1) and restricts the steering group (21) within the mounting groove (11).

3. The universal wheel with braking function according to claim 2, characterized in that: The steering group (21) comprises a plurality of steering balls.

4. The universal wheel with braking function according to claim 2, characterized in that: The steering cover (22) is provided with a connecting hole (23), and the connecting hole (23) is clamped with a limiting column (12) provided on the mounting body (1).

5. The universal wheel with braking function according to claim 3, characterized in that: The steering cover (22) is provided with a plurality of fixing holes (223).

6. The universal wheel with braking function according to claim 1, characterized in that: A first clamping portion (31) and a second clamping portion (32) are arranged in the installation space (3); the first clamping portion (31) and the second clamping portion (32) are arranged opposite to each other, and the wheel body (4) is arranged on the first clamping portion (31) and the second clamping portion (32).

7. The universal wheel with braking function according to claim 6, characterized in that: The brake part (5) comprises: A brake body (51) is rotatably arranged in the installation space (3); An operating handle (52) has one end connected to the brake body (51) and the other end passing through the side wall of the mounting body (1) and placed outside the mounting body (1).

8. The universal wheel with braking function according to claim 7, characterized in that: An operating groove (13) is provided on the side wall of the installation body (1), and the other end of the operating handle (52) passes through the operating groove (13) and is then placed outside the installation body (1).

9. The universal wheel with braking function according to claim 7, characterized in that: The brake body (51) is a rectangular brake body (51).

10. The universal wheel with braking function according to claim 7, characterized in that: A third clamping portion (33) is arranged in the mounting body (1), a first limiting groove (341) is arranged on the third clamping portion (33), a second limiting groove (342) is arranged on the first clamping portion (31), and two ends of the brake body (51) are respectively arranged in the first limiting groove (341) and the second limiting groove (342).

Images