Weight adjusting device with screwing type guiding sleeve

Abstract

The invention discloses a weight adjusting device with a screwing type guiding sleeve, and aims at providing a weight adjusting device which is characterized in that an adjusting screw rod and two guiding sleeves moving reversely can be adjusted to be matched with each other, the adjusting structure is simple, the use is convenient, rapid and reliable. Counter weight block placing grooves corresponding to an opening groove on a counter weight block are arranged outside an upper support block and a lower support block, and adjacent counter weight block placing grooves are separated by a boss, and a guide pillar travelling channel is arranged in the upper support block; the adjusting screw rod is arranged in a handle sleeve, the two guiding sleeves with opposite spiral inner threads are arranged between the adjusting screw rod and the handle sleeve, each guiding sleeve is connected with a guide pillar, and is in threaded connection with the adjusting screw rod, an outer end cover is fixedly connected with the outer end of the adjusting screw rod, one ends of the upper support block and the lower support block are connected with the outer end cover, the other ends of the upper support block and the lower support block are connected with an inner end cover, one end of the adjusting screw rod is fixedly connected with a screwing cover, an adjusting spring is arranged in the screwing cover, a positioning plate is arranged between the screwing cover and the outer end cover, a plurality of positioning holes are arranged in the positioning plate, and a steel ball corresponding to the positioning hole is arranged between the adjusting spring and the positioning plate.

Description

technical field [0001] The invention relates to a guide sleeve screwing type weight adjustment device. Background technique [0002] Modern life has made people pay more and more attention to physical fitness, and the accelerated pace of life has made sports enthusiasts put forward higher requirements for equipment and use requirements. People not only achieve the purpose of exercising, but also need greater adjustability and adaptability of the equipment selected and used. [0003] At present, the simple and adjustable dumbbells sold in the market are mainly adjustable through shafts connected in series, such as various forms of combined dumbbells. This adjustment structure is very cumbersome and time-consuming. Although the adjustable dumbbells serving the high-end market have greater adjustment flexibility, their complex structures lead to high prices and are difficult to promote to the public. [0004] In a word, although there are certain room for selection regarding ...

AI Technical Summary

Problems solved by technology

[0003] At present, the simple and adjustable dumbbells sold in the market are mainly of the series-connected through-shaft adjustment type, such as various forms of combined dumbbells. This adjustment structure is very cumbersome and time-consuming.

Although adjustable dumbbells serving the high-end market have greater adjustment flexibility, their structures are complex, resulting in high prices and difficulty in promoting them to the public.

[0004] In short, although there are certain options for the types and adjustability of dumbbells in the market, there are still many imperfections in the existing products, which need to be further improved.

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