CN205626907U

CN205626907U - Variable moment strength of arm

Info

Publication number: CN205626907U
Application number: CN201620210579.9U
Authority: CN
Inventors: 谈海鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2016-10-12
Anticipated expiration: 2026-03-10

Abstract

The utility model discloses a variable moment strength of arm, including handle and spring, its characterized in that: through screw -thread fit between handle and the spring be provided with the connecting pipe between handle and the spring, connecting pipe inner wall is provided with the screw thread with spring matched with, is provided with handle inner wall matched with external screw thread on the outer wall of connecting pipe, through the change of structure between handle to present strength of arm and the spring, with all set up on handle and the connecting pipe can be directly with spring complex structure, can be fit for personage's use of different strength so that control range is wideer, this simple structure, the body -building that can sparingly temper the personage is absorbed.

Description

Variable torque chest-developer

Technical field

This utility model belongs to a kind of physical fitness equipment, concretely relates to a kind of to change moment Chest-developer.

Background technology

Along with the raising of people's living standard, healthy attention degree is also important to note that, therefore by people Chest-developer or other body-building apparatus of different size strength occur on market, but, owing to chest-developer is a kind of Simple and use and body-building effect is than feature faster.Therefore, chest-developer is the most welcomed by the people.But Owing to the strength of people is different, if after tempering a period of time, it is necessary to change the arm strength that strength is bigger Device, so gets off and may need to the chest-developer of several different strength, this result in pay bigger.Have specially Profit number is: 2006201317306, and patent name is: the patent document of chest-developer describes one and can regulate The structure of chest-developer torque arm length, the people that can be suitable for different strength performs physical exercise, but due to its connecting rod The sleeve pipe being provided with screw thread and be fixed on spring coordinates, and structure member is the most, and range of accommodation has Limit, it is impossible to be suitable for people the most widely and use.

Utility model content

In view of the presence of problem above, this utility model provides a kind of variable torque chest-developer, has structure letter Single, range of accommodation rate of exchange width is suitable for the feature that the personage of various different strength uses.

A kind of variable torque chest-developer, including handle and spring, it is characterised in that: described handle and spring it Between by threaded engagement, between described handle and spring, be provided with connecting tube, described connecting tube inwall is arranged There is the screw thread matched with spring, the outer wall of connecting tube is provided with the external screw thread that handle inwall matches.

Preferably: offer, on described handle inwall, the screw thread matched with spring, bottom handle inwall Being provided with spring limiting structure, and gradually extend toward bottom along handle inwall mouth, screw thread is the tightst.

Beneficial effect

The beneficial effects of the utility model are: by the changing of structure between the handle of existing chest-developer and spring Become, the structure that can directly coordinate with spring will be respectively provided with on handle and connecting tube, so that range of accommodation More wider, the personage being suitable for different strength uses, and this simple in construction can save the body-building of exerciser Put into.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model chest-developer

Fig. 2 is the another kind of structural representation of the novel chest-developer of this use

Fig. 3 is the structural representation of handle inwall

Detailed description of the invention

As a kind of embodiment of the present utility model, as shown in Figure 1, 2, 3, a kind of variable torque arm strength Device, including handle 1,3 and spring 2, by threaded engagement between described handle and spring, at described handle And being provided with connecting tube 5 between spring, described connecting tube inwall is provided with the screw thread matched with spring, even It is provided with, on the outer wall of adapter, the external screw thread that handle inwall matches.By outside handle inwall and connecting tube The screw thread cooperated it is respectively provided with on coin and inwall, if strength is less when, can be by rotating Coordinating between handle with connecting tube, extend handle, the arm of force between connecting tube and spring, if can't Use, or chest-developer strength is excessive, it is also possible to by connecting tube past external rotation from spring, extend power further Arm, reduces chest-developer strength firmly.When strength is gradually increased, can regulate handle and connecting tube or it Between regulate the distance between connecting tube and spring so that the arm of force reduces, and increases the power-assisted of spring, if again The when of the regulation needed, in connecting tube all can being screwed in handle and can be by between spring and connecting tube Rotating to minimum range, increase the increase of spring so that meet the demand of exercise, this result is simple, variable Scope is wide.

The present embodiment is the another embodiment of the chest-developer regulation arm of force, described handle inwall is offered There is the screw thread matched with spring, bottom handle inwall, be provided with spring limiting structure, spring spacing mechanism Can be boss, and gradually extend toward bottom along handle inwall mouth, screw thread be more and more tightr.4 tables in figure Showing the spring thread groove arranged on handle inwall, spring can be revolved between handle and connecting tube by this structure Enter in handle inwall, and so that the spacing between spring can be reduced after Xuan Ruing so that spring revolves Entering handle inwall longer, make spring resistance bigger simultaneously, the strength of exercise is the biggest, when needs spring The when that resistance being little, it is only necessary to spring is rotated to arm inwall oral area, is certainly provided with at internal oral area and puts Put the structure that spring comes off.

Claims

1. a variable torque chest-developer, including handle and spring, it is characterised in that: described handle and spring it Between by threaded engagement, between described handle and spring, be provided with connecting tube, described connecting tube inwall is arranged There is the screw thread matched with spring, the outer wall of connecting tube is provided with the external screw thread that handle inwall matches.

Variable torque chest-developer the most according to claim 1, it is characterised in that: open on described handle inwall It is provided with the screw thread matched with spring, bottom handle inwall, is provided with spring limiting structure, and along handle Wall mouth gradually extends toward bottom, and screw thread is the tightst.