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Bolt

A screw and expansion sleeve technology, applied in the direction of pins, heavy objects, connecting components, etc., can solve the problems of bodybuilders' injuries and loose bolts, etc., and achieve the effects of low cost, safe use, and simple structure

Inactive Publication Date: 2012-07-25
苏州新凌电炉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of fitness equipment, the used weight sheet is pulled up and down, and there is no lack of collision with the unused weight sheet. The pin will slowly loosen due to the vibration generated by the impact, and finally the pin will come out of the hole of the weight sheet. Causing unnecessary injuries to bodybuilders

Method used

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Embodiment Construction

[0015] The present invention is described below in conjunction with accompanying drawing.

[0016] as attached image 3 The illustrated bolt of the present invention includes a handle 1, the outer end surface of the handle 1 has arc-shaped grooves 5 in an annular array; the center of the lower surface of the handle 1 is provided with a screw 6; 6. The jacket has an expansion sleeve 7; the expansion sleeve 7 is a rubber sleeve; the length of the rubber sleeve is less than the length of the screw rod 6; the screw rod 6 is provided with a lock nut 8; the lock nut 8 is located at the end of the rubber sleeve end.

[0017] as attached Figure 4 As shown in the present invention, when in use, hold the handle 1 and insert the screw 6 and the account cover 7 into the hole 4 of the weight plate 3 of the fitness equipment, and then screw the locking nut 8 on the screw 6. Tighten the lock nut hard, the lock nut 8 is to press the rubber sleeve tightly, so that the rubber sleeve expands...

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Abstract

The invention discloses a bolt, which comprises a grip. A screw is arranged at the center of the lower surface of the grip; an expansion sleeve is sleeved outside the screw and is shorter than the screw; a locking nut is arranged on the screw and positioned at the tail end of the expansion sleeve which is a rubber sleeve; and arc grooves are annularly arrayed on the outer end face of the grip. When using the bolt, a body builder holds the grip with a hand to insert the screw and the expansion sleeve into a hole of a weight piece of fitness equipment together, screws the locking nut on the screw and forcefully tightens the locking nut, so that the locking nut tightly presses the expansion sleeve to expand, the bolt is not easy to loosen and is prevented from being separated from the hole of the weight piece of the fitness equipment, and use safety of the body builder is guaranteed. The bolt is simple in structure and manufacture, low in cost and extremely convenient in use.

Description

technical field [0001] The invention relates to a bolt, in particular to a bolt for fitness equipment, and belongs to the technical field of fitness equipment parts. Background technique [0002] At present, the plugs used for fitness equipment on the market, such as attached figure 1 As shown, a handle 1 and a pin rod 2 are included, and the handle 1 is fixed at one end of the pin rod 2 . as attached figure 2 As shown, when in use, hold the handle 1 and insert the pin rod 2 into the hole 4 of the weight sheet 3 of the fitness equipment, so as to adjust the weight sheet suitable for self-exercise. During the use of fitness equipment, the used weight sheet is pulled up and down, and there is no lack of collision with the unused weight sheet. The pin will slowly loosen due to the vibration generated by the impact, and finally the pin will come out of the hole of the weight sheet. cause unnecessary injury to the bodybuilder. Contents of the invention [0003] In view of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/06A63B21/06
Inventor 饶陈伟
Owner 苏州新凌电炉有限公司
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