CN2095746U

CN2095746U - Multi-purpose chest expander

Info

Publication number: CN2095746U
Application number: CN 91207792
Authority: CN
Inventors: 孙焕章
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-05-04
Filing date: 1991-05-04
Publication date: 1992-02-12

Abstract

The utility model relates to a multi-purpose resisting device which is composed of a main frame (1), a pull claw (2), a connection arm (7), a wire rod (3), etc. Four suspension arms (5) are arranged on the main frame (1), and four included angles between the four suspension arms (5) are respectively 120 DEG, 120 DEG, 60 DEG and 60 DEG. The utility model can be arbitrarily assembled into a resisting device with two claws or the resisting device with three claws, and the fulcrum distance of the pull claw (2) can be adjusted by an adjusting screw (6) to prevent slide or hook shedding. The utility model has the advantages of multiple functions, large practical range, one implement with multiple functions, simple operation, convenient carryover, maintenance time shortening and work efficiency enhancment.

Description

Multi-purpose chest expander

The utility model belongs to instrument, a kind of improved chest expanders of using more.

The chest expander of existing maintenance usefulness has two kinds of two pawl chest expanders and tri-paw pullers.These two kinds of chest expanders composition such as shoulder by body frame, pulling claw, silk, and the body frame of its two pawls chest expander is provided with two cantilevers, supporting two pulling claws; The body frame of tri-paw puller is provided with three cantilevers, and supporting have three pulling claws.During maintenance,, need to use two pawl chest expander or tri-paw pullers of different size according to the difference of workpiece.Because two kinds of above chest expander purposes are single, must often have two kinds of chest expanders of plurality of specifications, use very trouble and inconvenience, carry also inconvenient, with chest expander kind and off-gauge, give rise to trouble and well imagine especially.

The purpose of this utility model provides a kind of chest expanders of using easy to use, efficient more.

Technical solution of the present utility model is: the cantilever on the body frame is four, and four angles between four cantilevers are about 120 °, 120 °, 60 °, 60 ° respectively.Like this, wherein two cantilevers roughly on same straight line, can connect two pulling claws respectively, use as two pawl chest expanders; Equally, must select each other angle and be three cantilevers of 120 °, connect three pulling claws respectively, promptly can be used as tri-paw puller and use.

The utility model is by a very simple structural change, can achieve the function that two pawl chest expander and tri-paw pullers are had effectively, one tool is used more, very convenient to use, can alleviate labor strength, increase work efficiency, shorten mechanical maintenance time, machinery is put into operation as early as possible, and easy to carry, processing and manufacturing also is easy to, has certain popularizing value.

Narrate implementation method of the present utility model below in conjunction with accompanying drawing.

Fig. 1 implements a kind of structure chart of the present utility model.

Fig. 2 is the form that is assembled into two pawl chest expanders.

Fig. 3 is the A-A cutaway view.

Among the figure, 1, body frame; 2, pulling claw; 3, silk is shouldered; 4, silk is shouldered the hole; 5, cantilever; 6, adjusting screw; 7, linking arm; 8, movable axostylus axostyle; 9, roll adjustment screw; 10, top.

Referring to Fig. 1, the utility model is shouldered (3), linking arm (7) etc. and is formed by body frame (1), pulling claw (2), silk, linking arm (7) is connected pulling claw (2) by movable axostylus axostyle (8) with cantilever (5), cantilever (5) on the body frame (1) is four, and four angles between four cantilevers (5) are about 120 °, 120 °, 60 °, 60 ° respectively, pulling claw (2) is three, during use, according to the difference of being drawn workpiece, can be assembled into two pawl chest expander (see figure 2)s arbitrarily, or the tri-paw puller (see figure 1).Collude phenomenon in order to prevent taking off when drawing big workpiece, the top of cantilever (5) is provided with roll adjustment screw (9) (see figure 3) that can regulate the adjusting screw (6) of pulling claw (2) pivot distance and match, like this, size according to workpiece can prevent that by regulating adjusting screw (6) pulling claw (2) from skidding off, thereby the scope of application of the present utility model is enlarged more.

Claims

1, a kind of many chest expanders of use are shouldered (3) etc. by body frame (1), pulling claw (2), silk and are formed, and its body frame (1) is provided with thread shoulders hole (4), cantilever (5), and it is characterized in that: body frame (1) upper cantilever (5) is four.

2, chest expander as claimed in claim 1 is characterized in that: four angles between four cantilevers (5) are about 120 °, 120 °, 60 °, 60 ° respectively.

3, as claim 1,2 described chest expanders, it is characterized in that: cantilever (5) is gone up setting can regulate the adjusting screw (6) of pulling claw (2) pivot distance and the roll adjustment screw (9) that matches.