CN201205423Y

CN201205423Y - Chest expander

Info

Publication number: CN201205423Y
Application number: CNU2008201024766U
Authority: CN
Inventors: 许志铭
Original assignee: XIAMEN YOUYANG BODY-BUILDING EQUIPMENT Co Ltd
Current assignee: Youyang Electrical Appliance Manufacture (Xiamen) Co., Ltd.
Priority date: 2008-05-27
Filing date: 2008-05-27
Publication date: 2009-03-11
Anticipated expiration: 2018-05-27

Abstract

The utility model discloses a chest expander, which mainly comprises a piston tube, two handle tubes and two piston rods. A central vent hole is arranged at the central position of the side wall of the piston tube; the two piston rods are positioned at the two end of the piston tube; the external ends of the two piston rods both penetrates through the piston tube and are respectively combined with the two handle tubes; and the handle tubes are sleeved outside the piston tube. The utility model adopts a whole piston tube to replace the sealing ring and the two piston tubes, which are fixedly connected in the prior art; the structure is simple; the assembly is easy; and the air tightness is better.

Description

Chest expander

Technical field

The utility model relates to a kind of body-building chest expander, refers to especially a kind ofly grip the handle of vapour-pressure type drag mechanism respectively with both hands, moves back and forth in the other direction by doing, and reaches the body-building apparatus of strong chest effect.

Background technology

In the prior art, the structure that a kind of chest expander arranged mainly is made up of a central joint 10 and two vapour-pressure type drag mechanisms 20 as depicted in figs. 1 and 2; Be fixed with a sealing ring 102 in the central joint 10, have a passage 103 conductings on the sidewall of sealing ring 102 to the Connection Block 101 of central joint 10, the axis both sides of sealing ring 102 have the mouth of joint, are respectively applied for and are connected and fixed two vapour-pressure type drag mechanisms 20; Two vapour-pressure type drag mechanisms 20 respectively are made up of a handle pipe 201, a piston tube 202 and a piston rod 203, piston tube 202 is the joint mouth place that closed is fixed on sealing ring 102, piston rod 203 is arranged in the piston tube 202 and the outer end passes piston tube 202 and combines with handle pipe 201, and handle pipe 201 is enclosed within outside the piston tube 202.

Like this, formation one has the airtight space of passage 103 between sealing ring 102, piston tube 202 and the piston rod 203, during use, body builder's both hands grip handle pipe 201 respectively, pulling or compression handle pipe 201 can drive piston rod 203 and do the piston motion in piston tube 202, reach strong chest effect thus.This structure further also is equipped with pressure regulator 30 at passage 103 places, is used for regulating the turnover tolerance of passage 103, changes exercise intensity thus, in the hope of the optimal movement effect.

Examine said structure, be not difficult to find: because airtight space is by being the fixedly connected sealing ring of closed 102 and two piston tube 202 cooperate two piston rods 203 to form, not only member is many, connection is many, the assembling trouble, and, require high at the junction seal, leak air easily, influence is normally used.

In view of this, the inventor studies improvement at the above-mentioned defective of existing chest expander, provide a kind of simple in structure, assembling easily, chest expander that air-tightness is good, this case produces thus.

The utility model content

The purpose of this utility model is to provide a kind of chest expander, and it is simple in structure, assembling is easy, air-tightness is better.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of chest expander, mainly form by a piston tube, two handle pipe and two piston rods, the sidewall center of piston tube has center roof vent, two piston rods are arranged in the two ends of piston tube, the outer end of two piston rods all passes piston tube and combines with two handle pipe respectively, and handle pipe is enclosed within outside the piston tube.

The center roof vent place of described piston tube is equipped with pressure regulator.

Described pressure regulator mainly is made up of holder, regulating spool and knob, the center of piston tube is with holder, holder is fastened by upper fixed seat and lower fixed seat and forms, upper fixed seat offers the pore that is connected with center roof vent, upper fixed seat and regulating spool fit together by the center that a screw passes the two, regulating spool has the pore that some diameter are different and can align with the pore of upper fixed seat by rotation, upper fixed seat all is provided with sealing ring respectively and between the piston tube, regulating spool, and knob is fixed on the regulating spool.

The noise reduction foam-rubber cushion is installed on the pore of described regulating spool.

Described holder and regulating spool also are with the loam cake and the lower cover of mutual fastening outward, and knob is installed in the outside of loam cake, and the lower end of knob is stretched in the loam cake and with regulating spool and is fixed together.

The inner end of described piston rod also is fixed with strong magnet, and the outside of piston tube is equipped with interconnective magnetic red pipe, battery, counter and display, during magnetic red pipe induction strong magnet, and the turn-on battery sum counter, rolling counters forward once and by display shows.

Described magnetic red pipe, battery, counter and display also are with the loam cake and the lower cover of mutual fastening outward, and the position of the corresponding display of lower cover has display window, is covered with transparency cover on the display window.

The inner end of described two handle pipe is fixed with the handle protheca, is with the handle foam encasement on two handle pipe, and the outer end of two handle pipe is overlapped after being fixed with handle, puts behind the handle to fix a tail-hood.

The outer end of described handle pipe is overlapped after handle is installed, and the outer end of piston rod is passed the centre bore that overlaps behind the handle and fixed by jump ring.

In the described piston tube positioning sleeve is installed, positioning sleeve is passed in the outer end of piston rod.

After adopting said structure, the utility model is because replace fixedly connected sealing ring and two piston tube in the prior art with one whole piston tube, only cooperate with the piston rod at two ends and form airtight space by a piston tube, compared with prior art, not only member obviously reduces, there is not the connection between the member, structure is simpler, it is easier to assemble, and whole piston tube good leak tightness avoided the gas leak phenomenon that causes because of connection, and the quality of piston tube is controlled easily, and then has guaranteed the normal use of product.

Description of drawings

Fig. 1 is the perspective exploded view of existing chest expander;

Fig. 2 is the assembled sectional view of existing chest expander;

Fig. 3 is a perspective exploded view of the present utility model;

Fig. 3 A is the partial enlarged drawing of Fig. 3;

Fig. 4 is a combination schematic diagram one of the present utility model;

Fig. 5 is a combination schematic diagram two of the present utility model;

Fig. 6 is usage operation figure one of the present utility model;

Fig. 7 is usage operation figure two of the present utility model;

Fig. 8 is the location diagram of piston tube, upper fixed seat and regulating spool.

The specific embodiment

For the effect that makes technology contents of the present utility model, utility model purpose and can reach can be more complete, clearly disclose, see also the graphic and figure number that is disclosed now and be described in detail as follows:

At first seeing also Fig. 3, Fig. 3 A, Fig. 4 and shown in Figure 5, is preferred embodiment of the present utility model, and this chest expander mainly is made up of a piston tube 1, two handle pipe 2 and two piston rods 3.

Wherein, the sidewall center of piston tube 1 has center roof vent 11.The center roof vent 11 of regulating piston pipe 1 passes in and out the tolerance sizes for convenience, and this embodiment also is equipped with pressure regulator at center roof vent 11 places.Pressure regulator is mainly by holder, regulating spool 5 and knob 6 are formed, the center of piston tube 1 is with holder, holder is combined by upper fixed seat 42 and lower fixed seat 41, upper fixed seat 42 offers the pore 44 (referring to Fig. 8) that is connected with center roof vent 11, upper fixed seat 42 and regulating spool 5 fit together by the center that a screw 61 (also can replace with other members such as pivot pins) passes the two, regulating spool 5 has some diameter different pore 52 (referring to Fig. 8, this embodiment has six pores 52), by rotating regulation valve core 5, the different pores 52 of regulating spool 5 are alignd with the pore 44 of upper fixed seat 42, change is by the tolerance of center roof vent 11 turnover piston tube 1, between upper fixed seat 42 and the piston tube 1, be respectively equipped with sealing ring 43 and sealing ring 51 between upper fixed seat 42 and the regulating spool 5 in order to guarantee the air-tightness of product, knob 6 is fixed on the regulating spool 5 by its lower end.In order to eliminate the noise that turnover gas produces, on the pore 52 of regulating spool 5, noise reduction foam-rubber cushion 7 is installed also.For product attractive in appearance, this embodiment is assembled in holder and regulating spool 5 etc. between the loam cake 82 and lower cover 81 of a pair of mutual fastening, knob 6 is installed in the outside of loam cake 82 so that rotation is regulated, and the lower end of knob 6 is then stretched in the loam cake 82 and is fixed together with regulating spool 5.

Two piston rods 3 are arranged in the two ends of piston tube 1, and the outer end that the inner end of piston rod 3 also is with sealing ring 31, two piston rods 3 all passes piston tube 1 and combines with two handle pipe 2 respectively.

Two handle pipe 2 all are enclosed within outside the piston tube 1.Spacing for the ease of combining with piston rod 3, this embodiment is equipped with positioning sleeve 25 in piston tube 1, positioning sleeve 25 is passed in the outer end of piston rod 3.Smooth and easy in order to use, this embodiment is fixed with handle protheca 21 in the inner end of two handle pipe 2, comfortable in order to grip, be with handle foam encasement 22 on two handle pipe 2, the outer end of two handle pipe 2 overlaps 23 after being fixed with handle, piston rod 3 overlaps 23 centre bores and fixing by jump ring 26 after passing handle, fixes a tail-hood 24 on the cover 23 behind the handle.

Counting is taken exercise for convenience, increase and temper enjoyment, this embodiment also is fixed with strong magnet 9 in the inner end of piston rod 3, interconnective magnetic red pipe 91, battery 92, counter 93 and display are installed in the outside of piston tube 1 (are in the counter below, label not among the figure), when piston rod 3 is pushed back in the piston tube 1, when magnetic red pipe 91 is sensed strong magnet 9, magnetic red pipe 91 is promptly closed, turn-on battery 92 sum counters 93 form the loop, and counter 93 countings once and by display show exercise counting in real time.For product attractive in appearance; this embodiment is contained in magnetic red pipe 91, battery 92, counter 93 and display group in the lower cover 81; the position of lower cover 81 corresponding displays has display window, is covered with transparency cover 94 on the display window in order to prevent dust, to protect counter 93 and display.

Vibrations in order to prevent to take exercise, this embodiment also is equipped with earthquake washer 32 between piston rod 3 and piston tube 1, handle pipe 2, and is provided with crash roll 83 in the end of loam cake 82 and lower cover 81, to reduce the vibrations that member collides generation mutually.

When the utility model uses, as shown in Figure 6 and Figure 7, similar to prior art, the body builder with the hands grips the handle foam encasement 22 on two handle pipe 2 respectively, pulling or compression handle pipe 2 can drive piston rod 3 and do the piston motion in piston tube 1, reach strong chest effect thus.Because replace fixedly connected sealing ring 102 and two piston tube 202 in the prior art with one whole piston tube 1, compared with prior art, member obviously reduces, do not have the connection between the member, structure is simpler, and it is easier to assemble, and, good leak tightness has been avoided the gas leak phenomenon that causes because of connection, and then has guaranteed the normal use of product.This embodiment can be by rotation knob 6, drive regulating spool 5 and rotate, the pore 52 of different-diameter size that changes regulating spool 5 is corresponding with the pore 44 of upper fixed seat 42, thus the turnover tolerance of adjusting center roof vent 11, change exercise intensity thus, in the hope of the optimal movement effect.This embodiment compresses handle pipe 2 at every turn and drives piston rod 3 compressions when taking exercise, and all makes strong magnet 9 close to magnetic red pipe 91 thereupon, after 91 inductions of magnetic red pipe, promptly be communicated with battery 92, counter 93, display, counter 93 is counted and is shown by display, observe for the body builder, increase sports fun.

Claims

1, a kind of chest expander, it is characterized in that: mainly form by a piston tube, two handle pipe and two piston rods, the sidewall center of piston tube has center roof vent, two piston rods are arranged in the two ends of piston tube, the outer end of two piston rods all passes piston tube and combines with two handle pipe respectively, and handle pipe is enclosed within outside the piston tube.

2, a kind of chest expander as claimed in claim 1 is characterized in that: the center roof vent place of described piston tube is equipped with pressure regulator.

3, a kind of chest expander as claimed in claim 2, it is characterized in that: described pressure regulator is mainly by holder, regulating spool and knob are formed, the center of piston tube is with holder, holder is fastened by upper fixed seat and lower fixed seat and forms, upper fixed seat offers the pore that is connected with center roof vent, upper fixed seat and regulating spool fit together by the center that a screw passes the two, regulating spool has the pore that some diameter are different and can align with the pore of upper fixed seat by rotation, upper fixed seat respectively with piston tube, all be provided with sealing ring between the regulating spool, knob is fixed on the regulating spool.

4, a kind of chest expander as claimed in claim 3 is characterized in that: the noise reduction foam-rubber cushion is installed on the pore of described regulating spool.

5, a kind of chest expander as claimed in claim 3 is characterized in that: described holder and regulating spool also are with the loam cake and the lower cover of mutual fastening outward, and knob is installed in the outside of loam cake, and the lower end of knob is stretched in the loam cake and with regulating spool and is fixed together.

6, a kind of chest expander as claimed in claim 1, it is characterized in that: the inner end of described piston rod also is fixed with strong magnet, the outside of piston tube is equipped with interconnective magnetic red pipe, battery, counter and display, during magnetic red pipe induction strong magnet, turn-on battery sum counter, rolling counters forward once and by display show.

7, a kind of chest expander as claimed in claim 6 is characterized in that: described magnetic red pipe, battery, counter and display also are with the loam cake and the lower cover of mutual fastening outward, and the position of the corresponding display of lower cover has display window, is covered with transparency cover on the display window.

8, a kind of chest expander as claimed in claim 1, it is characterized in that: the inner end of described two handle pipe is fixed with the handle protheca, is with the handle foam encasement on two handle pipe, and the outer end of two handle pipe is overlapped after being fixed with handle, puts behind the handle to fix a tail-hood.

9, a kind of chest expander as claimed in claim 1, it is characterized in that: the outer end of described handle pipe is overlapped after handle is installed, and the outer end of piston rod is passed the centre bore that overlaps behind the handle and is fixed by jump ring.

10, a kind of chest expander as claimed in claim 1 is characterized in that: in the described piston tube positioning sleeve is installed, positioning sleeve is passed in the outer end of piston rod.