CN201453919U

CN201453919U - Chest expander

Info

Publication number: CN201453919U
Application number: CN2009201036931U
Authority: CN
Inventors: 武喜贵; 武琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-11
Filing date: 2009-07-11
Publication date: 2010-05-12
Anticipated expiration: 2019-07-11

Abstract

The utility model discloses a chest expander, which comprises a supporting rod, shouldering devices, levers, handles, a tension spring, a handle locking screw for adjusting the positions of the handles, an adjusting screw for adjusting the tension of the tension spring, etc. The supporting rod adopts a straight rod in the middle part of which the two shouldering devices are fixed, two ends of the supporting rod are respectively connected with the two levers via a rotating shaft, and the tension spring is arranged between the two levers. With the application to human bodies with different heights and the adjustable scope of resistance force, the utility model can exercise muscles of the arms and the back, and has larger elasticity scope than that of a chest developer and occupies smaller space than that of a large-scale fitness device. The utility model has the characteristics of small size, portability, simple structure and easy popularization.

Description

Folder chest exerciser

Technical field

The utility model belongs to field of exercise, relates in particular to a kind of folder chest exerciser that is used for taking exercise both arms and chest and back muscle.

Background technology

In sports or daily improving the health, strengthen both arms and chest and back muscle power if desired, best mode is to utilize the chest expanding exerciser.At present, existing chest expanding exercising apparatus mainly contains chest expander, and spring is housed above, with the hands it is drawn back during exercise; Also have in the multi-functional large-scale athletic training equipment and contain the parts that can help chest expanding; Special-purpose butterfly chest expander is also arranged.Large-scale apparatus takes up an area of big, has only special playground just to have, and has limited user's scope; Small-sized chest expander elastic force is limited, is unfavorable for that also the sports enthusiast gives full play to the physical efficiency of oneself.

The utility model content

Goal of the invention

The purpose of this utility model provides a kind of novel folder chest exerciser that chest is forged both arms and chest and back muscle that is used for, and the utility model is big than chest expander elastic force scope, than the large-scale health and fitness facilities side of occupation of land not again.

The purpose of this utility model is achieved in that

The utility model comprises support bar, the handgrip lock-screw of handgrip position and the set screw of regulating tension spring tension are regulated in device, lever, handgrip, extension spring and being used to pickaback;

Described support bar is a straight-bar, at the middle part of support bar, fixes two devices pickaback, and the support bar two ends connect a lever respectively by rotating shaft, and an extension spring is arranged between two levers;

Described lever is L-shaped, and the tie point of lever and support bar is positioned at the bending part of lever, and the long-armed and support bar of lever is vertical, and galianconism is on the extended line of support bar; The afterbody long-armed at lever is socketed with handgrip, and described handgrip is bending, and the handgrip end is a sleeve pipe, and casing pipe sleeve is connected on the lever, and the handgrip lock-screw is arranged on the sleeve pipe;

Described extension spring is positioned at the back side of support bar, and the two ends of extension spring are connected on the lever short arm by casing pipe sleeve, and set screw is arranged on the sleeve pipe;

Described shoulder mounts and is changed to L shapedly, and two shoulders mount puts back spaced apart by being bolted on the support bar, and shoulder mounts the long-armed vertical of the long-armed and above-mentioned lever put.

Beneficial effect

The human body that the utility model can adapt to differing heights uses, and the pulling force of extension spring can be adjusted.Use the utility model to temper both arms and muscle of back, big than chest expander elastic force scope, than the large-scale health and fitness facilities side of occupation of land not again.It is little to have volume, easy to carry, simple in structure, the characteristics that are easy to promote.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a structure diagram of the present utility model.

Embodiment

As shown in the figure: the utility model comprises support bar 4, installs 7 pickaback, lever 6, handgrip 9, extension spring 8 and be used to regulate the handgrip lock-screw 10 of handgrip position and the set screw 1 of regulating tension spring tension;

Be fixed with two at the middle part of support bar 4 and install 7 pickaback, shoulder mounts to be put 7 L-shapedly, and two shoulders mount puts back spaced apart by being bolted on the support bar 4, and shoulder mounts puts the long-armed vertical of 7 long-armed and lever 6.

The two ends of support bar 4 are connected with L shaped lever 6 respectively by rotating shaft 5, and the long-armed and support bar 4 of lever 6 is vertical, and galianconism is on the extended line of support bar 4; Sleeve pipe 2 on the galianconism of lever, and the set screw 1 of regulating tension spring tension is arranged on the sleeve pipe 2, and extension spring 8 is connected on the sleeve pipe;

Be socketed with handgrip 9 at lever 6 long-armed afterbodys, described handgrip 9 is bending, and handgrip 9 is connected on the lever by its terminal casing pipe sleeve, and handgrip lock-screw 10 is arranged on the sleeve pipe of handgrip 9;

During use, to install 7 tops pickaback shoulders in both shoulders, back is close in the bottom, and both arms stretch to both sides respectively, and both hands are held handgrip 9, both arms are firmly done the motion of folder chest forward, this moment, lever 6 closed up forward by rotating shaft 5, drove resistance arm 3 simultaneously and separated to both sides, pulling spring 8, increase strength for handgrip 9, thereby reach the purpose of tempering both arms and chest and back muscle.

Regulate the position of sleeve pipe 2 on resistance arm 3 (lever short arm), can reach the purpose of the resistance of regulating handgrip 9.

Handgrip 9 can slide on lever 6, to adapt to different brachium people's use after unclamping handgrip lock-screw 10.

Claims

1. folder chest exerciser comprises support bar, device, lever, handgrip, extension spring and be used to regulate the handgrip lock-screw of handgrip position and the set screw of regulating tension spring tension pickaback; It is characterized in that:

Support bar is a straight-bar, at the middle part of support bar, fixes two devices pickaback, and the support bar two ends connect a lever respectively by rotating shaft, and an extension spring is arranged between two levers;

Lever is L-shaped, and the tie point of lever and support bar is positioned at the bending part of lever, and the long-armed and support bar of lever is vertical, and galianconism is on the extended line of support bar; The afterbody long-armed at lever is socketed with handgrip, and described handgrip is bending, and the handgrip end is a sleeve pipe, and casing pipe sleeve is connected on the lever, and the handgrip lock-screw is arranged on the sleeve pipe;

Extension spring is positioned at the back side of support bar, and the two ends of extension spring are connected on the lever short arm by casing pipe sleeve, and set screw is arranged on the sleeve pipe;

Shoulder mounts and is changed to L shapedly, and two shoulders mount puts back spaced apart by being bolted on the support bar, and shoulder mounts the long-armed vertical of the long-armed and lever put.