Roller assembly for garage door

Abstract

The utility model discloses a roller assembly for a garage door, which comprises a connecting shaft, a connecting sleeve is sleeved on the surface of one end of the connecting shaft, the other end of the connecting sleeve is fixedly connected with an inner ring, an outer ring is sleeved on the surface of the inner ring, and a plurality of rollers are arranged on the surface of the inner ring. Through cooperation of the connecting shaft, the connecting sleeve, the inner ring, the outer ring, the roller, the clamping ring and the wheel body, the wheel body can bear the mass of a garage door and transmit traction force, braking force, driving torque and braking torque, the wheel body can be protected through the rubber sleeve, and therefore the wheel body is prevented from being abraded and corroded, sliding friction is reduced, power output efficiency is improved, and the service life of the wheel body is prolonged. And then through cooperation of a cavity, a spring, a positioning column and a positioning hole, the position of the rubber sleeve can be positioned, the rubber sleeve is prevented from loosening in the long-time use process, and the firmness of the rubber sleeve after installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of garage doors, in particular to a roller assembly for a garage door. Background Art

[0002] Roller assembly for garage door A push-up type hanging door usually used as a garage door includes a plurality of door components hinged together. Usually, such hanging doors are supported on a pair of L-shaped tracks, so that the tracks can move the garage door upward from a roughly vertical closed state to a horizontal open state. In order to enable such movement, a plurality of roller supports are installed on the side close to the garage door.

[0003] At present, some garage door roller assemblies on the market have a layer of rubber sleeve on their surface. The function of the rubber sleeve is to protect the roller from wear and corrosion, increase the friction between the roller and the garage door, reduce sliding friction, and improve power output efficiency. When the use time of the roller assembly increases, the wear degree of the rubber sleeve also increases, which may cause the rubber sleeve to loosen or even rotate, which will affect the shaking of the garage door. The damage of the rubber sleeve will affect the shock absorbing effect of the rubber sleeve, causing the garage door to vibrate and make abnormal noises.

[0004] Therefore, it is necessary to modify some garage door rollers to effectively prevent the rubber sleeves from loosening or even rotating during long-term use. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a roller assembly for a garage door, which has the advantage of being able to limit the rubber sleeve, thereby improving the stability of the rubber sleeve, and solving the problem of the rubber sleeve becoming loose or even rotating after long-term use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller assembly for a garage door, comprising a connecting shaft, a connecting sleeve is sleeved on the surface of one end of the connecting shaft, an inner ring is fixedly connected to the other end of the connecting sleeve, an outer ring is sleeved on the surface of the inner ring, a plurality of rollers are arranged evenly in a ring shape and are all rollingly connected to the outer ring, a retaining ring is fixedly connected to the surface of the outer ring, a wheel body is sleeved on the surface of the retaining ring, a cavity is opened on the surface of the wheel body, a spring is fixedly connected to the inside of the cavity, a positioning column is fixedly connected to the other end of the spring, a rubber sleeve is sleeved on the surface of the wheel body, a positioning hole is opened on the surface of the rubber sleeve, and the positioning hole is clamped with the positioning column.

[0007] As a preferred embodiment of the utility model, a threaded hole is provided on the surface of the wheel body, a fixing hole is provided on the surface of the retaining ring, a bolt is threadedly connected to the surface of the threaded hole, and the other end of the bolt is threadedly connected to the fixing hole.

[0008] As a preferred embodiment of the present invention, a retainer is provided between the inner ring and the outer ring, and the retainer is used in conjunction with the roller.

[0009] As a preferred embodiment of the present invention, the number of the cavities, springs, positioning posts and positioning holes is eight, and the eight cavities, springs, positioning posts and positioning holes are evenly arranged in a ring-like shape in groups of four by four.

[0010] As a preferred embodiment of the present invention, one end of the positioning column away from the spring is fixedly connected with a protruding column.

[0011] As a preferred embodiment of the present invention, the cross-sectional area of ​​the raised column is larger than the cross-sectional area of ​​the positioning hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model can bear the mass of the garage door, transmit traction, braking force, driving torque and braking torque through the cooperation of the connecting shaft, the connecting sleeve, the inner ring, the outer ring, the roller, the snap ring and the wheel body, and can protect the wheel body with the rubber sleeve to avoid wear and corrosion, reduce sliding friction and improve power output efficiency. Then, through the cooperation of the cavity, the spring, the positioning column and the positioning hole, the position of the rubber sleeve can be positioned to avoid loosening during long-term use, thereby improving the firmness of the rubber sleeve after installation.

[0014] 2. The utility model improves the connection effect between the clamping ring and the wheel body by setting the threaded holes, fixing holes and bolts, thereby preventing the clamping ring from being worn due to the autonomous rotation of the wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 3 This is a left side cross-sectional schematic diagram of the inner ring and the outer ring of the utility model used in combination;

[0018] Figure 4 For this utility model Figure 2 A is an enlarged schematic diagram.

[0019] In the figure: 1. connecting shaft; 2. connecting sleeve; 3. inner ring; 4. outer ring; 5. roller; 6. snap ring; 7. wheel body; 8. cavity; 9. spring; 10. positioning column; 11. rubber sleeve; 12. positioning hole; 13. threaded hole; 14. fixing hole; 15. bolt; 16. retainer; 17. raised column. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] like Figures 1 to 4 As shown, the utility model provides a roller assembly for a garage door, comprising a connecting shaft 1, a connecting sleeve 2 is sleeved on the surface of one end of the connecting shaft 1, an inner ring 3 is fixedly connected to the other end of the connecting sleeve 2, an outer ring 4 is sleeved on the surface of the inner ring 3, a plurality of rollers 5 are arranged uniformly in a ring shape and are all rollingly connected to the outer ring 4, a snap ring 6 is fixedly connected to the surface of the outer ring 4, a wheel body 7 is sleeved on the surface of the snap ring 6, a cavity 8 is provided on the surface of the wheel body 7, a spring 9 is fixedly connected inside the cavity 8, a positioning column 10 is fixedly connected to the other end of the spring 9, a rubber sleeve 11 is sleeved on the surface of the wheel body 7, a positioning hole 12 is provided on the surface of the rubber sleeve 11, and the positioning hole 12 is clamped with the positioning column 10.

[0022] refer to Figure 2 and Figure 4 A threaded hole 13 is provided on the surface of the wheel body 7 , a fixing hole 14 is provided on the surface of the retaining ring 6 , a bolt 15 is threadedly connected to the surface of the threaded hole 13 , and the other end of the bolt 15 is threadedly connected to the fixing hole 14 .

[0023] As a technical optimization solution of the utility model, the threaded hole 13, the fixing hole 14 and the bolt 15 are provided to improve the connection effect between the retaining ring 6 and the wheel body 7, thereby preventing the retaining ring 6 from being worn due to the autonomous rotation of the wheel body 7.

[0024] refer to Figure 3 A retainer 16 is provided between the inner ring 3 and the outer ring 4 , and the retainer 16 is used in conjunction with the roller 5 .

[0025] As a technical optimization solution of the present invention, the retainer 16 is provided to restrict the rollers 5 to avoid mutual collisions that would shorten their service life, thereby extending the service life of the rollers 5.

[0026] refer to Figure 2 The number of cavities 8, springs 9, positioning columns 10 and positioning holes 12 is eight, and the eight cavities 8, springs 9, positioning columns 10 and positioning holes 12 are evenly arranged in a ring-like shape in groups of four by four.

[0027] As a technical optimization solution of the utility model, by setting eight cavities 8, springs 9, positioning columns 10 and positioning holes 12, the rubber sleeve 11 can be positioned at multiple positions, thereby enhancing the positioning effect of the rubber sleeve 11.

[0028] refer to Figure 1 , Figure 2 and Figure 4 One end of the positioning column 10 away from the spring 9 is fixedly connected with a protruding column 17 .

[0029] As a technical optimization solution of the present invention, the protruding column 17 is provided to prevent the positioning column 10 from being separated from the positioning hole 12 .

[0030] refer to Figure 4 , the cross-sectional area of ​​the protruding column 17 is larger than the cross-sectional area of ​​the positioning hole 12 .

[0031] As a technical optimization solution of the utility model, by setting the cross-sectional area of ​​the protruding column 17 larger than the cross-sectional area of ​​the positioning hole 12, the elastic property of the rubber sleeve 11 can be utilized to enable the positioning hole 12 to pass through the protruding column 17, thereby achieving the effect of clamping it.

[0032] The working principle and use process of the utility model are as follows: when the roller assembly is used, the device is first installed into the external integrated door body track, so that the rubber sleeve 11 on the wheel body 7 fits with the garage door on the external integrated door body track. When the garage door is recovered or lowered, the garage door fits on one side of the wheel body 7 and rolls. The rubber sleeve 11 rotates with the movement of the garage door, and can drive the wheel body 7 and the snap ring 6 to rotate, so that the outer ring 4 can rotate through the roller 5 on the retainer 16. At this time, the spring 9 gives the positioning column 10 an inward pulling force, so that the positioning column 10 and the positioning hole 12 can position the rubber sleeve 11, which can prevent the rubber sleeve 11 from rotating on the wheel body 7, and the raised column 17 can prevent the positioning column 10 from being separated from the positioning hole 12, so that the rubber sleeve 11 can be firmly fixed on the surface of the wheel body 7, thereby preventing the rubber sleeve 11 from loosening during long-term use.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roller assembly for a garage door, comprising a connecting shaft (1), characterized in that: A connecting sleeve (2) is sleeved on the surface of one end of the connecting shaft (1), and an inner ring (3) is fixedly connected to the other end of the connecting sleeve (2). An outer ring (4) is sleeved on the surface of the inner ring (3). A plurality of rollers (5) are arranged on the surface of the inner ring (3), and the plurality of rollers (5) are evenly arranged in a ring shape and are rollingly connected to the outer ring (4). A snap ring (6) is fixedly connected to the surface of the outer ring (4). A wheel body (7) is sleeved on the surface of the snap ring (6). A cavity (8) is provided on the surface of the wheel body (7), and a spring (9) is fixedly connected inside the cavity (8). A positioning column (10) is fixedly connected to the other end of the spring (9). A rubber sleeve (11) is sleeved on the surface of the wheel body (7), and a positioning hole (12) is provided on the surface of the rubber sleeve (11), and the positioning hole (12) is clamped to the positioning column (10).

2. The roller assembly for a garage door according to claim 1, characterized in that: A threaded hole (13) is provided on the surface of the wheel body (7), a fixing hole (14) is provided on the surface of the clamping ring (6), a bolt (15) is threadedly connected to the surface of the threaded hole (13), and the other end of the bolt (15) is threadedly connected to the fixing hole (14).

3. The roller assembly for a garage door according to claim 1, characterized in that: A retainer (16) is provided between the inner ring (3) and the outer ring (4), and the retainer (16) is used in conjunction with the roller (5).

4. The roller assembly for a garage door according to claim 1, characterized in that: The number of the cavities (8), springs (9), positioning columns (10) and positioning holes (12) is eight, and the eight cavities (8), springs (9), positioning columns (10) and positioning holes (12) are evenly arranged in a ring-like shape in groups of four by four.

5. The roller assembly for a garage door according to claim 4, characterized in that: One end of the positioning column (10) away from the spring (9) is fixedly connected to a protruding column (17).

6. The roller assembly for a garage door according to claim 5, characterized in that: The cross-sectional area of ​​the protruding column (17) is greater than the cross-sectional area of ​​the positioning hole (12).

Images