CN214436155U

CN214436155U - Sliding barbell bar for variable-track smith machine

Info

Publication number: CN214436155U
Application number: CN202120576198.3U
Authority: CN
Inventors: 李民
Original assignee: SHAN DONG HUIKANG SPORT EQUIPMENT CO LTD
Current assignee: SHAN DONG HUIKANG SPORT EQUIPMENT CO LTD
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-10-22
Anticipated expiration: 2031-03-22

Abstract

The utility model particularly relates to a variable orbit smith machine slip barbell pole, a serial communication port includes the body of rod, the both ends of the body of rod are equipped with the blind hole of symmetry, be equipped with interior axle and the spring of slip in two blind holes respectively, interior axle is thick reducing structure in outer thin, the thick section of axle inserts in the blind hole in the slip, the external diameter and the blind hole internal diameter of thick section match, the front end of blind hole is equipped with spacing cap, spacing cap and blind hole section are threaded connection, be equipped with the through-hole on the spacing cap, the internal diameter of through-hole is less than the thick section external diameter of axle in the slip, the both ends cover of the body of rod is equipped with the slip overcoat, the thick reducing structure in outer thin section internal diameter and the thin section external diameter of axle in the slip are matchd to the slip overcoat, its thick section internal diameter matches with the external diameter of spacing cap, the inner end of slip overcoat is equipped with the spacing ring, the internal diameter of spacing ring matches with the external diameter of the body of rod. The utility model has the advantages of reasonable structure and convenient assembly and disassembly.

Description

Sliding barbell bar for variable-track smith machine

Technical Field

The utility model particularly relates to a variable orbit smith machine slip barbell bar.

Background

The smith machine, also called smith frame, is a common fitness and rehabilitation apparatus, the two ends of the barbell of which are controlled by longitudinal rails, the sliding track is limited, the safety coefficient is high, the trainer can use large weight with great confidence, and the trainer is not only limited to deep squat training, but also can do barbell training such as bench press (inclined upwards, flat plate, inclined downwards), bow rowing, biceps brachii muscle bending and lifting, etc.

The 'influence of training track on the coordination of upper limb muscles' published in 2019, 10 months, Beijing biomedical engineering, volume 38, No. 5, which discloses the following conclusions: the training tracks of the upper limbs have certain influence on the characteristics of the muscles of the upper limbs, the muscle cooperative structures brought by different training tracks are similar, but the flexor group occupation ratio and the cooperative contribution degree change for the cooperative action in the exercise process, so that the training intensity of different training tracks on different muscle groups can be presumed to be different. Therefore, the applicant has invented a variable-track smith machine which can use a barbell bar or not, and the traditional barbell bar is very inconvenient to assemble and disassemble, and is not suitable for the variable-track smith machine invented by the applicant.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a variable orbit smith machine slip barbell pole, its length is nimble to be adjusted, the dismouting of being convenient for.

The utility model discloses a realize through following technical scheme:

the sliding barbell bar for the Smith machine with the variable track is characterized by comprising a bar body, wherein two ends of the bar body are provided with symmetrical blind holes, a sliding inner shaft and a spring are respectively arranged in the two blind holes, the sliding inner shaft is of a reducing structure with a thin outer part and a thick inner part, the thick section of the sliding inner shaft is inserted into the blind holes, the outer diameter of the thick section is matched with the inner diameter of the blind holes, the front end of each blind hole is provided with a limiting cap, the limiting cap and the blind hole section are in threaded connection, the limiting cap is provided with a through hole, the inner diameter of the through hole is smaller than the outer diameter of the thick section of the sliding inner shaft, two ends of the bar body are sleeved with sliding outer sleeves, each sliding outer sleeve is of a reducing structure with a thin outer part and a thick inner diameter, the thin section of each sliding outer diameter is matched with the outer diameter of the sliding inner shaft, the thick section of each sliding outer sleeve is matched with the outer diameter of the limiting cap, and the inner diameter of the limiting ring is matched with the outer diameter of the bar body.

The utility model has the advantages of reasonable structure and convenient assembly and disassembly. The utility model discloses a shaft body both ends set up the axle in slip overcoat and the slip, hold the body of rod and exert oneself to one end, the body of rod can be followed the axle in the slip and slided certain distance to the place ahead, and the total length shortens, when the external force of exerting reduces or disappears, under the spring action, the body of rod resets, and the total length is replied to the beginning, uses the utility model discloses, can realize swift convenient dismouting.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is a schematic structural view of the present invention during installation;

as shown in the figure: 3-4-5, sliding the handle sleeve; 11-1, sliding the inner shaft; 11-2, sliding the outer sleeve; 11-3. a spring; 11-4, a rod body; 11-5, a limit cap; 11-6, a limit ring; 11-7. blind hole.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1, 2, and 3: two ends of the rod body 11-4 are provided with symmetrical blind holes 11-7, a sliding inner shaft 11-1 and a spring 11-3 are respectively arranged in the two blind holes 11-7, the sliding inner shaft 11-1 is of a reducing structure with a thin outer part and a thick inner part, the thick section of the sliding inner shaft 11-1 is inserted into the blind hole 11-7, the outer diameter of the thick section is matched with the inner diameter of the blind hole 11-7, the front end of the blind hole 11-7 is provided with a limit cap 11-5, the limit cap 11-5 is in threaded connection with the blind hole section, the limit cap 11-5 is provided with a through hole, the inner diameter of the through hole is smaller than the outer diameter of the thick section of the sliding inner shaft 11-1, two ends of the rod body 11-4 are sleeved with sliding outer sleeves 11-2, the sliding outer sleeves 11-2 are of a reducing structure with a thin outer part and a thick inner diameter of the thin section is matched with the outer diameter of the sliding inner shaft 11-1, the outer diameter of the thin section of the sliding handle sleeve is matched with the inner diameter of the sliding handle sleeve 3-4-5, the inner diameter of the thick section of the sliding handle sleeve is matched with the outer diameter of the limiting cap 11-5, the outer ends of the sliding outer sleeve 11-2 and the sliding inner shaft 11-1 are inserted into the sliding handle sleeve 3-4-5, the inner end of the sliding outer sleeve 11-2 is provided with a limiting ring 11-6, and the inner diameter of the limiting ring 11-6 is matched with the outer diameter of the rod body 11-4.

When the utility model is installed, the sliding outer sleeve 11-2 and the sliding inner shaft 11-1 at one end are inserted into the sliding handle gloves 3-4-5 of the sliding handle at the corresponding side, holding the rod body 11-4, exerting force forwards, sliding the rod body 11-4 forwards along the sliding inner shaft 11-1 for a certain distance, wherein the total length of the sliding barbell rod 11 is less than the distance between the two sliding handle gloves 3-4-5, aligning the sliding outer sleeve 11-2 at the other end of the rod body 11-4 and the sliding inner shaft 11-1 with the other sliding handle glove 3-4-5, loosening the rod body 11-4 or reducing the forward force of the rod body 1-4, under the action of the spring 11-3, the sliding outer sleeve 11-2 and the sliding inner shaft 11-1 at the other end of the rod body 11-4 are automatically inserted into the sliding handle sleeve 3-4-5 at the corresponding side.

When the barbell is required to be disassembled, the rod body 11-4 is held and forced forwards, the rod body 11-4 slides forwards for a certain distance along the sliding inner shaft 11-1, the total length of the sliding barbell rod 11 is smaller than the distance between the two sliding handle gloves 3-4-5, the sliding outer sleeve 11-2 at the other end of the rod body 11-4 and the sliding inner shaft 11-1 are separated from the sliding handle gloves 3-4-5 at the corresponding side, the separated end is slightly inclined, and the rod body 11-4 is pulled out from the other sliding handle glove 3-4-5.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The sliding barbell rod for the Smith machine with the variable track is characterized by comprising a rod body, wherein two ends of the rod body are provided with symmetrical blind holes, a sliding inner shaft and a spring are respectively arranged in the two blind holes, the sliding inner shaft is of a reducing structure with a thin outer part and a thick inner part, the thick section of the sliding inner shaft is inserted into the blind holes, the outer diameter of the thick section is matched with the inner diameter of the blind holes, the front end of each blind hole is provided with a limiting cap, the limiting cap and the blind hole section are in threaded connection, a through hole is formed in the limiting cap, the inner diameter of the through hole is smaller than the outer diameter of the thick section of the sliding inner shaft, sliding outer sleeves are sleeved at two ends of the rod body and are of a reducing structure with a thin outer part and a thick inner part, the inner diameter of the thin section is matched with the outer diameter of the sliding inner shaft, the inner diameter of the thick section is matched with the outer diameter of the limiting cap, a limiting ring is arranged at the inner end of the sliding outer sleeve, and the inner diameter of the limiting ring is matched with the outer diameter of the rod body.