CN206406696U - A kind of Universal wheel for luggage - Google Patents

Abstract

The utility model discloses a universal wheel for luggage, which comprises a roller, a wheel seat, a tray and a rotating shaft. The roller is arranged on the wheel seat, and the upper end of the rotating shaft is fixed with the tray. Jack, the lower end of the rotating shaft located in the longitudinal socket of the wheel seat is also provided with an annular groove, and the position corresponding to the annular groove of the rotating shaft is provided with a transverse screw hole connected with the longitudinal socket on the wheel seat. The annular groove is also provided with a positioning block constituting an axial limit for the rotating shaft. The inner end side of the positioning block is provided with an arc-shaped groove that is sleeved on the annular groove of the rotating shaft and forms a circular rotation fit with the rotating shaft. The positioning block The other side of the inner end of the inner end is provided with an arc-shaped through hole spliced into a circle with the transverse screw hole, and the arc-shaped through hole penetrates outward and axially to the outer end surface of the positioning block, and the positioning block and the wheel seat are connected by screws. fixed. By adopting the above structure, the utility model provides a universal wheel for luggage with more reliable connection and more convenient installation.

Description

Universal wheel for luggage

technical field

The utility model relates to a universal wheel for luggage.

Background technique

At present, universal wheels for bags generally include rollers, wheel seats, trays and rotating shafts. The rollers are mounted on the wheel seats, and the upper end of the rotating shaft is fixed to the tray. There is a longitudinal socket for inserting the lower end of the rotating shaft. At the same time, in order to prevent the lower end of the rotating shaft from protruding from the longitudinal socket of the wheel seat, an annular groove will be opened on the lower end of the rotating shaft located in the longitudinal socket of the wheel seat. The bolt cooperates with the annular groove to form an axial positioning for the rotating shaft. But because the wear and tear after latch and rotating shaft is bigger, therefore can affect the service life of universal wheel, for solving the above problem, notification number is that the technical scheme that replaces latch with locating sleeve is proposed on the patent document of CN 204734027 U, although like this can Effectively reduce the wear of the rotating shaft, but the positioning sleeve and the wheel seat are fixed by the latch, which is not stable and reliable enough. Since the universal wheel is in a state of vibration for a long time during use, the latch is easy to fall out, thus If the positioning sleeve loses its installation and fixation, the rotating shaft will also lose its positioning and come out, which will cause the universal wheel to fall apart as a whole.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model provides a universal wheel for luggage with more reliable connection and more convenient installation.

In order to achieve the above purpose, the utility model provides a universal wheel for luggage, which includes a roller, a wheel seat, a tray and a rotating shaft. The roller is installed on the wheel seat, and the upper end of the rotating shaft is fixed to the tray. The lower end of the rotating shaft is inserted into the longitudinal socket. The lower end of the rotating shaft located in the longitudinal socket of the wheel seat is also provided with an annular groove. hole, the annular groove is also provided with a positioning block constituting an axial limit to the rotating shaft, and an embedded groove for the positioning block to be embedded is correspondingly opened on the wheel seat, and the embedded groove and the transverse screw One end of the hole forms a radial intersection, one side of the inner end of the positioning block is provided with an arc-shaped groove that is sleeved on the annular groove of the rotating shaft and forms a circular rotation fit with the rotating shaft, and the other side of the inner end of the positioning block is provided with a The horizontal screw holes are spliced into a circle of arc-shaped through holes, and the arc-shaped through holes axially penetrate outward to the outer end surface of the positioning block. There are also screws between the positioning block and the wheel seat. The rods of the screws It is installed in the arc-shaped through hole of the positioning block and forms a threaded fit with the transverse screw hole of the wheel seat. The head of the screw is pressed against the outer end surface of the positioning block and forces the arc-shaped groove on the positioning block to fit in the on the ring groove of the shaft.

The beneficial effects of the utility model are: adopting the above-mentioned structure, since the positioning block cooperates with the rotating shaft through the arc-shaped groove on it, the wear on the rotating shaft is small; For fixing, a part of the rod part of the screw is passed through the arc-shaped through hole of the positioning block, and a part is screwed with the transverse screw hole on the wheel seat to form a screw fit. Finally, the screw is tightened, and the head of the screw will press against the positioning block. The outer end surface of the block forces the arc-shaped groove on the positioning block to fit on the annular groove of the rotating shaft to form an axial limit on the rotating shaft. The overall structure is simple, easy to install, and the connection is stable and reliable after assembly.

In the present invention, a wear-resistant washer can be further arranged between the lower end surface of the rotating shaft and the bottom surface of the longitudinal socket of the wheel seat. This can effectively improve the wear resistance between the rotating shaft and the wheel seat, thereby prolonging the overall service life of the universal wheel.

Description of drawings

Fig. 1 is a structural perspective view of the utility model;

Fig. 2 is the structural exploded view of the utility model;

Fig. 3 is the exploded diagram of partial structure of the utility model;

Fig. 4 is the structural diagram of the wheel seat in the utility model.

detailed description

As shown in Figures 1, 2, 3, and 4, a universal wheel for luggage is provided, including a roller 1, a wheel seat 2, a tray 3 and a rotating shaft 4, the roller 1 is installed on the wheel seat 2, and the upper end of the rotating shaft 4 Fixed with the tray 3, the wheel base 2 is provided with a longitudinal jack 21 for inserting the lower end of the rotating shaft 4, and the lower end of the rotating shaft 4 located in the longitudinal jack 21 of the wheel base is also provided with an annular groove 41. The position corresponding to the annular groove 41 of the rotating shaft on the top 2 is provided with a transverse screw hole 22 connected with the longitudinal insertion hole 21. The annular groove 41 is also provided with a positioning block 5 constituting an axial limit for the rotating shaft 4, and the wheel seat 2 Correspondingly, there is an embedding groove 23 for the positioning block 5 to be embedded in, and the embedding groove 23 forms a radial intersection with one end of the transverse screw hole 22, and one side of the inner end of the positioning block 5 is provided with An arc-shaped groove 51 that fits on the annular groove 41 of the rotating shaft and forms a circular rotation fit with the rotating shaft 4, the other side of the inner end of the positioning block 5 is provided with an arc-shaped through hole 52 spliced with the transverse screw hole 22 to form a circle, and The arc-shaped through hole 52 axially penetrates outward to the outer end surface 53 of the positioning block 5, and a screw 6 is also provided between the positioning block 5 and the wheel seat 2, and the rod portion 61 of the screw 6 passes through the positioning block. 5 and form a threaded fit with the transverse screw hole 22 of the wheel seat 2, the head 62 of the screw 6 is pressed against the outer end surface 53 of the positioning block 5 and forces the arc on the positioning block 5 The shaped groove 51 is sleeved on the annular groove 41 of the rotating shaft 4 . A wear-resistant washer 7 is also arranged between the lower end surface of the rotating shaft 4 and the bottom surface of the wheel seat longitudinal insertion hole 21 . By adopting the above structure, the utility model provides a universal wheel for luggage with more reliable connection and more convenient installation.

Claims (2)

1. A universal wheel for luggage, comprising a roller, a wheel seat, a tray and a rotating shaft, the roller is mounted on the wheel seat, the upper end of the rotating shaft is fixed to the tray, and the wheel seat is provided with a longitudinal jack for inserting the lower end of the rotating shaft, The lower end of the rotating shaft located in the longitudinal socket of the wheel seat is also provided with an annular groove, which is characterized in that: the position of the wheel seat corresponding to the annular groove of the rotating shaft is provided with a transverse screw hole that communicates with the longitudinal socket. A positioning block constituting an axial limit to the rotating shaft is also provided on the annular groove of the shaft, and an embedding groove for the embedding of the positioning block is correspondingly opened on the wheel seat, and the embedding groove and one end of the transverse screw hole form a Radially intersecting, one side of the inner end of the positioning block is provided with an arc-shaped groove that fits on the annular groove of the rotating shaft and forms a circular rotation fit with the rotating shaft, and the other side of the inner end of the positioning block is provided with a horizontal screw hole splicing A looped arc-shaped through hole, and the arc-shaped through hole axially penetrates outward to the outer end surface of the positioning block. A screw is also provided between the positioning block and the wheel seat, and the rod of the screw passes through the positioning block. The arc-shaped through hole of the block and the horizontal screw hole of the wheel seat form a screw fit. The head of the screw is pressed against the outer end surface of the positioning block and forces the arc-shaped groove on the positioning block to fit into the annular groove of the rotating shaft. superior. 2 . The universal wheel for luggage according to claim 1 , wherein a wear-resistant washer is provided between the lower end surface of the rotating shaft and the bottom surface of the longitudinal socket of the wheel seat. 3 .