CN111068351A

CN111068351A - Running-aid device

Info

Publication number: CN111068351A
Application number: CN201911315770.4A
Authority: CN
Inventors: 纪音
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-04-28
Anticipated expiration: 2039-12-19
Also published as: CN111068351B

Abstract

The invention belongs to sports equipment, and particularly relates to a running aid, which comprises a plurality of groups of pedal strips and a base, wherein each pedal strip consists of a front pedal and a rear pedal, the front pedal and the rear pedal are connected through a pedal connecting part so as to enable the front pedal and the rear pedal to rotate relatively, the front pedal is fixed with the base through a connecting bolt, the plurality of groups of rear pedals are connected through a connecting column, and an elastic plate penetrates through the front pedal, the pedal connecting part and the rear pedal and is fixed in the front pedal, the pedal connecting part and the rear pedal. The running aid provided by the invention has adjustable elasticity and convenient replacement, and can well realize the power-assisted function.

Description

Running-aid device

Technical Field

The invention relates to a running aid, in particular to a running aid with adjustable elasticity and convenient assembly and disassembly.

Background

In a running match, especially in a 100 m or 200 m sprint, a running aid is needed, although the existing running aid meets requirements to a certain extent, there are some defects, for example, patent document CN204563622U adopts a simple spring to realize power assistance, however, the running aid has relatively strict requirements on the spring, the spring either has insufficient elasticity or satisfies elasticity but is easy to cause heel phenomenon, so that a player can easily sprag his foot, patent document CN206597319U is also the same and has a complex structure, patent document CN103877734A discloses that a cylinder is used for power assistance, the structure is more complex, patent document CN 207119151U discloses that a whole elastic plate is used as a power assistance device, although the structure is simple, the whole elastic plate cannot meet the power assistance requirements of different players, and the elasticity is inflexible, and the whole elastic plate can only be scrapped when damaged, and cannot be replaced.

Disclosure of Invention

In order to solve the problems, the invention provides a running aid, which comprises a plurality of groups of pedal strips and a base, wherein the base is provided with an inclined plane, the groups of pedal strips are laid on the inclined plane, one ends of the pedal strips are fixedly connected with the base through connecting bolts, the other ends of the pedal strips are mutually connected through connecting columns, each pedal strip consists of a front pedal and a rear pedal, the front pedal and the rear pedal are connected through a pedal joint connecting part, so that the front pedal and the rear pedal can rotate relatively, and an elastic plate is fixed in the pedal strips;

the pedal comprises a front pedal, a front outer cylinder part and a front inner core part, wherein the front outer cylinder part is provided with a front threaded part which is in threaded fit with a connecting bolt so as to be connected with the base;

furthermore, the upper part of the front fork part comprises an outer arc surface and an inner arc surface, the outer arc surface and the inner arc surface are intersected, and the lower part of the front fork part is symmetrical and identical with the upper part; the upper part of the rear fork part comprises an outer arc surface and an inner arc surface, the outer arc surface and the inner arc surface are connected in a cutting way through a cutting surface, and the lower part of the rear fork part is symmetrical and identical with the upper part; the outer arc surface of the front fork part and the inner arc surface of the rear fork part slide along each other to form rotational freedom; one end of the front outer cylinder part, which is close to the joint connecting part, is provided with a joint arc surface, and the outer arc surface of the rear fork part is in sliding fit with the joint arc surface; wherein the outer arc surface of the front fork part, the outer arc surface of the rear fork part, the inner arc surface of the rear fork part and the joint arc surface of the front outer cylinder part are concentric circles;

furthermore, the surfaces of the front pedal and the rear pedal are provided with anti-skid grains;

further, the elastic plate comprises an elastic plate main body and a limiting end, and the elastic plate main body is in threaded connection with the limiting end;

further, the elastic plate main body is fixed between the front inner core part and the rear inner core part by the limiting end head.

The invention has the beneficial technical effects that: the pedal strip can provide different sports or exercise requirements of athletes, if larger power assistance is required, a plurality of groups of pedal strips can be assembled, if small power assistance is required, the pedal strips can be assembled in a small amount, and when one pedal strip is damaged, the pedal strip can be conveniently and timely replaced, so that the pedal strip is convenient and easy to assemble.

Drawings

FIG. 1 is a schematic structural view (side view) of the present invention;

FIG. 2 is a schematic structural view (top view) of the present invention;

FIG. 3 illustrates the natural state of the tread strip;

FIG. 4 is a power assist state of the tread strip;

fig. 5 is a schematic view of the elastic plate.

Detailed Description

As shown in fig. 1-2, the running aid 1 includes a plurality of sets of tread strips and a base 2, wherein each tread strip is composed of a front pedal 5 and a rear pedal 3, the front pedal 5 is connected with the rear pedal 3 through a pedal joint connecting part 4, so that the front pedal 5 and the rear pedal 3 can rotate relatively, the front pedal 5 is fixed with the base 2 through a connecting bolt 6, the rear pedals 3 are connected through a connecting column 8, and the front pedal 5 and the rear pedal 3 are provided with anti-slip patterns.

With further reference to fig. 3, the front pedal 5 includes a front outer cylinder portion 501 and a front inner core portion 502, wherein the front outer cylinder portion 501 has a front threaded portion 503 which is threadedly engaged with the coupling bolt 6 to be coupled with the base 2, and the front outer cylinder portion 501 is threadedly coupled with the front inner core portion 502. The rear pedal 3 includes a rear outer tube portion 301, a rear inner core portion 302, and the rear outer tube portion 301 is screwed together with the rear inner core portion 302. One end of the front inner core portion 502 has a front fork portion 404, one end of the rear inner core portion 302 has a rear fork portion 403, and the front fork portion 404 and the rear fork portion 403 constitute a pedal joint portion 4. The elastic plate 7 passes through and is fixed in the front inner core portion 502 and the rear inner core portion 302.

Referring next to fig. 4, the articulation 4 will be described in detail. The upper portion of the front fork 404 includes an outer arc surface 4041, an inner arc surface 4042, and the outer arc surface 4041 intersects the inner arc surface 4042, and the lower portion of the front fork 404 is symmetrical with the upper portion. The upper portion of the rear fork 403 includes an outer arc surface 4031, an inner arc surface 4032, and the outer arc surface 4031 and the inner arc surface 4032 are connected by a cut surface 4033. The outer arcuate surface 4041 of the front prong 404 and the inner arcuate surface 4032 of the rear prong 403 slide along each other to provide rotational freedom. With further reference to FIG. 4, it can be seen that the end of the front outer barrel portion 501 adjacent the knuckle joint portion 4 has an engagement arc surface 5011, and the outer arc surface 4031 of the rear fork 403 is in sliding engagement with the engagement arc surface 5011. Wherein the outer arc surface 4041 of the front fork portion 404, the outer arc surface 4031 of the rear fork portion 403, the inner arc surface 4032 of the rear fork portion 403, and the engaging arc surface 5011 of the front outer tube portion 501 are concentric circles.

Referring again to fig. 3-4, it can be seen that the resilient plate 7 flexes as the articulation section 4 rotates.

Referring to fig. 5, the elastic plate 7 includes an elastic plate main body 702 and a limit tip 701, and the elastic plate main body 702 is screwed to the limit tip 701. As can be seen with further reference to fig. 3-4, the spacing tips 701 secure the spring plate body 702 between the front inner core portion 502 and the rear inner core portion 302.

The specific working process of the invention is described next: connect pedal strip fixed connection on base 2 at one end through connecting bolt 6, connecting column 8 connects the formation tread with multiunit pedal strip at the other end, because base 2 provides the inclined plane, consequently multiunit pedal strip has formed the inclined plane that supplies the sportsman to trample side by side, when the sportsman is pitched and is trampled the strip, back footboard 3 constitutes the rotary motion for preceding footboard 5 through joint connection portion 4, therefore cause elastic plate main part 702 to take place the elasticity and buckle, the sportsman plays to run and stops that, the elastic plate main part 702 of buckling gives a helping hand of sportsman.

The pedal strip can provide different sports or exercise requirements of athletes, if larger power assistance is required, a plurality of groups of pedal strips can be assembled, if small power assistance is required, the pedal strips can be assembled in a small amount, and when one pedal strip is damaged, the pedal strip can be conveniently and timely replaced, so that the pedal strip is convenient and easy to assemble.

It should be noted that any patent or product which does not depart from the basic concept of the invention should be construed as being included within the scope of the invention.

Claims

1. A running aid characterized by: the pedal comprises multiple groups of pedal strips and a base (2), wherein the base is provided with an inclined plane, the multiple groups of pedal strips are laid on the inclined plane, one end of each pedal strip is fixedly connected with the base (2) through a connecting bolt (6), the other end of each pedal strip is mutually connected through a connecting column (8), each pedal strip consists of a front pedal (5) and a rear pedal (3), the front pedal (5) is connected with the rear pedal (3) through a pedal joint connecting part (4), so that the front pedal (5) and the rear pedal (3) can rotate relatively, and an elastic plate (7) is fixed in each pedal strip; the front pedal (5) comprises a front outer cylinder part (501) and a front inner core part (502), wherein the front outer cylinder part (501) is provided with a front threaded part (503) which is in threaded fit with a connecting bolt (6) and then connected with the base (2), the front outer cylinder part (501) is in threaded connection with the front inner core part (502), the rear pedal (3) comprises a rear outer cylinder part (301), a rear inner core part (302), the rear outer cylinder part (301) is in threaded connection with the rear inner core part (302) in the same way, one end of the front inner core part (502) is provided with a front fork part (404), one end of the rear inner core part (302) is provided with a rear fork part (403), the front fork part (404) and the rear fork part (403) form a pedal joint part (4), and an elastic plate (7) sequentially penetrates through the front inner core part (502), the front fork part (404), the rear fork part (403) and the rear inner core part.