CN209738702U

CN209738702U - Flash roller

Info

Publication number: CN209738702U
Application number: CN201920441175.4U
Authority: CN
Inventors: 包鸿志
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2019-12-06
Anticipated expiration: 2029-04-02

Abstract

The embodiment of the utility model provides a flash of light gyro wheel is located including shaft, cover epaxial wheel body and magnetic core and be fixed in the wheel body on and correspond and be located the magnetic core outlying electric conductor, the shaft still is provided with the caulking groove in the position department of installation magnetic core, hold the elastic component in the caulking groove, the surface of elastic component is from caulking groove protrusion and elasticity butt in the inner circle surface of magnetic core. The embodiment of the utility model provides a place to set up the caulking groove and hold the elastic component through installing the magnetic core at the shaft, the elastic component surface is still from the inner circle surface of caulking groove protrusion butt magnetic core, and the not hard up that the clearance between magnetic core and the shaft brought can effectively be avoided with the help of the suitable elastic deformation of elastic component, and it is more firm to make magnetic core and shaft fixed, and then the electric conductor can effectively cut the magnetic line of force of magnetic core and produce the electric current and make corresponding LED lamp luminous when making the gyro wheel that flashes roll.

Description

Flash roller

Technical Field

The embodiment of the utility model provides a gyro wheel technical field especially indicates a flashing light gyro wheel is related to.

Background

Existing products such as swing cars, child exercise bikes, scooters, roller skates, and the like, use flashing rollers to enhance the cool and dazzling feeling. The main structure of the existing flashing roller comprises: the center is provided with the wheel body in the dabber hole, wears to locate the shaft in the dabber hole of wheel body, and the dabber hole leans on both ends drill way department to set up the bearing and connect wheel body and shaft, and the middle-middle section holds and corresponds the cover and locate the epaxial magnetic core of wheel and be fixed in the coil that encircles on the pore wall in dabber hole and correspond in the dabber hole. When the wheel body rotates relative to the core shaft, the coil also rotates relative to the magnetic core to cut magnetic lines of force to generate current, so that the LED lamp arranged on the surface of the wheel body is lightened to emit light. The magnetic core of the existing flash roller is sleeved on the mandrel and is generally assembled and positioned through size matching or key matching, a gap is easily formed between the magnetic core and the mandrel in the assembling mode, and the magnetic core may move to influence the effect of magnetic generating electricity, so that the defects of delayed luminescence, poor luminescence continuity and even no luminescence are caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves provides a flashing roller to make magnetic core and dabber relatively fixed.

In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme: a flash roller comprises a wheel shaft, a wheel body and a magnetic core which are sleeved on the wheel shaft, and an electric conductor which is fixed on the wheel body and correspondingly located on the periphery of the magnetic core, wherein an embedded groove is further formed in the position of the wheel shaft where the magnetic core is installed, an elastic piece is accommodated in the embedded groove, and the outer surface of the elastic piece protrudes from the embedded groove and is elastically abutted against the surface of an inner ring of the magnetic core.

Furthermore, the caulking groove is an annular caulking groove arranged on the outer surface of the wheel shaft in a circumferential surrounding mode, and the elastic piece is an elastic ring.

Further, the annular caulking grooves are provided with at least two and are symmetrically arranged relative to the magnetic core in the axial direction.

Further, the caulking grooves are multiple and are distributed on the outer surface of the wheel shaft in a central symmetry mode relative to the central axis of the wheel shaft and extend for a preset length in the axial direction of the wheel shaft, and the elastic pieces are elastic fillets.

Further, the axial length of the elastic insertion strip is matched with the axial size of the magnetic core.

Adopt above-mentioned technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: the embodiment of the utility model provides a place to set up the caulking groove and hold the elastic component through installing the magnetic core at the shaft, the elastic component surface is still from the inner circle surface of caulking groove protrusion butt magnetic core, and the not hard up that the clearance between magnetic core and the shaft brought can effectively be avoided with the help of the suitable elastic deformation of elastic component, and it is more firm to make magnetic core and shaft fixed, and then the electric conductor can effectively cut the magnetic line of force of magnetic core and produce the electric current and make corresponding LED lamp luminous when making the gyro wheel that flashes roll.

Drawings

Fig. 1 is a schematic cross-sectional view along the central axis of an alternative embodiment of the flash roller of the present invention.

Fig. 2 is a schematic cross-sectional view perpendicular to the axial direction of a flash roller according to still another alternative embodiment of the present invention, in which only the axle, the magnetic core, and the elastic member are shown.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended as a limitation of the present invention, and that features of the embodiments and examples may be combined with each other without conflict.

As shown in fig. 1, an embodiment of the present invention provides a flash roller, including a wheel axle 1, a sleeve, a wheel body 3 and a magnetic core 5 on the wheel axle 1, and an electric conductor 7 fixed on the wheel body 3 and corresponding to and located at the periphery of the magnetic core 5, the wheel axle 1 is further provided with an insertion groove 10 at a position where the magnetic core 5 is installed, an elastic member 9 is accommodated in the insertion groove 10, and the outer surface of the elastic member 9 protrudes from the insertion groove 10 and elastically abuts against the inner ring surface of the magnetic core 5.

The embodiment of the utility model provides a set up caulking groove 10 and hold elastic component 9 through 1 installation magnetic core of shaft 5 departments, when concrete implementation, can adopt rubber, silica gel etc. to have elastic material and make elastic component 9. The outer surface of the elastic part 9 is also protruded from the caulking groove 10 to abut against the inner ring surface of the magnetic core 5, and the looseness caused by the gap between the magnetic core 5 and the wheel shaft 1 can be effectively avoided by means of proper elastic deformation of the elastic part 9, so that the magnetic core 5 and the wheel shaft 1 are more firmly fixed, and further the electric conductor 7 can effectively cut the magnetic force lines of the magnetic core 5 when the flash roller rolls to generate current to enable the corresponding LED lamp to emit light.

In an alternative embodiment, the caulking groove 10 is an annular caulking groove circumferentially arranged around the outer surface of the wheel axle 1, and the elastic member 9 is an elastic ring. In the embodiment, the caulking groove 10 is arranged in an annular caulking groove form, an elastic ring (such as an O-shaped ring) is correspondingly adopted as the elastic member 9, the processing and the assembly can be convenient, and the selection range of the elastic member 9 is wide.

In an alternative embodiment, as shown in fig. 1, the annular caulking grooves are provided in at least two and are axially symmetrically arranged with respect to the magnetic core 5. This embodiment can butt in magnetic core 5 inner circle surface symmetrically through setting up the annular caulking groove that two at least symmetries set up to when having avoided single elastic ring to support magnetic core 5, the phenomenon that the magnetic core atress is uneven and probably takes place to incline can effectively keep magnetic core 5 more steady. Of course, it is understood that if the single elastic ring has a certain width and is disposed at the symmetrical center, the effect of effectively maintaining the stability of the magnetic core 5 can be achieved.

In an alternative embodiment, as shown in fig. 2, the caulking grooves 10 are a plurality of grooves symmetrically distributed on the outer surface of the hub 1 with respect to the center axis of the hub 1 and extend a predetermined length in the axial direction of the hub 1, and the elastic member 9 is an elastic band. The embodiment provides another structure form of the caulking groove 10 and the elastic member 9 which can also achieve relatively firm fixation of the magnetic core 5 and the wheel axle 1, and can be flexibly selected according to the structure characteristics and requirements in practical application.

In an alternative embodiment, the axial length of the elastic band matches the axial dimension of the core 5. The present embodiment can better support the magnetic core 5 by setting the axial length of the elastic band to match the axial dimension of the magnetic core 5, making the magnetic core 5 more stable.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.

Claims

1. A flash roller comprises a wheel shaft, a wheel body and a magnetic core which are sleeved on the wheel shaft, and an electric conductor which is fixed on the wheel body and correspondingly positioned on the periphery of the magnetic core.

2. The flashing roller as defined in claim 1, wherein the caulking groove is an annular caulking groove circumferentially provided around the outer surface of the hub, and the elastic member is an elastic ring.

3. The flash roller according to claim 2, wherein the annular caulking groove is provided with at least two and is symmetrically arranged with respect to the magnetic core in the axial direction.

4. A flashlight wheel according to claim 1, wherein said recessed grooves are plural and are symmetrically formed on the outer surface of the hub with respect to the center axis of the hub and extend in the axial direction of the hub for a predetermined length, and said elastic member is an elastic band.

5. The flash roller of claim 4, wherein the axial length of the resilient band matches the axial dimension of the core.