CN204017253U - Short stroke chest expander - Google Patents
Short stroke chest expander Download PDFInfo
- Publication number
- CN204017253U CN204017253U CN201420335605.1U CN201420335605U CN204017253U CN 204017253 U CN204017253 U CN 204017253U CN 201420335605 U CN201420335605 U CN 201420335605U CN 204017253 U CN204017253 U CN 204017253U
- Authority
- CN
- China
- Prior art keywords
- handle
- elastic tubes
- chest expander
- winding district
- district
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model discloses a kind of short stroke chest expander, comprise: two handles that are arranged in parallel, described handle is strip structure, comprise the winding district at two ends and middle grip region, and some elastic tubes, described elastic tubes one end ties up to the outside, winding district of a handle, and the other end ties up to the outside, winding district of another root handle, parallel distribution between described elastic tubes, the outside, winding district of described handle refers to that handle is wound around the side of district away from another handle.Handle is retracted to elastic tubes two ends by the utility model, effectively shorten the natural length of chest expander, low-tension stroke in shortening, with respect to traditional long stroke chest expander, more meet the body mechanics of pulling force motion, improve the training effectiveness of dorsal muscles group and pectoralis major, train on is better, and has promoted the feasibility of little space pulling force motion.Short stroke chest expander cost of the present utility model, and harvesting space diminish, more convenient journey portably uses.
Description
Technical field
The utility model relates to a kind of chest expander, espespecially a kind of short stroke chest expander.
Background technology
Traditional chest expander as shown in Figure 1, is long stroke chest expander, comprises extension spring 2(or stretch cord between lever 1 and the lever at two ends), can be used for strengthening the muscle strength of upper body and arm.For traditional chest expander, along with the increase of pulling force, its spring (or stretch cord) progressively from nature enter low-tension district, tensile region, finally enter high-tensile strength district, as shown in Figure 2.And traditional chest expander has certain natural length under natural conditions (not stretching), when use, starting point is limited by natural length, Payload stroke (high-tensile strength district) is shorter, to muscle, particularly the train on of muscle of back is not ideal enough, and need larger extending space while using, be unfavorable for using whenever and wherever possible.
Utility model content
The purpose of this utility model is to provide a kind of short stroke chest expander that can enter fast high-tensile strength district.
The technical scheme that the utility model is taked is for this reason: a kind of short stroke chest expander, comprising:
Two handles that are arranged in parallel, described handle is strip structure, comprise the winding district at two ends and middle grip region, and some elastic tubes, described elastic tubes one end ties up to the outside, winding district of a handle, the other end ties up to the outside, winding district of another root handle, parallel distribution between described elastic tubes, and the outside, winding district of described handle refers to that handle is wound around the side of district away from another handle.
Handle is retracted to elastic tubes two ends by short stroke chest expander of the present utility model, effectively shorten the natural length of chest expander, low-tension stroke in shortening, with respect to traditional long stroke chest expander, more meet the body mechanics of pulling force motion, improve the training effectiveness of dorsal muscles group and pectoralis major, train on is better, and has promoted the feasibility of little space pulling force motion.Short stroke chest expander cost of the present utility model.
As the preferred technical scheme of the utility model, described elastic tubes has two, every elastic tubes winding district after-combustion with one end at two handles.
The mode of an elastic tubes after-combustion can further shorten the natural length of chest expander, fills a part middle high section pulling force that utilizes elastic tubes, and chest expander can enter high-tensile strength district sooner.
As the preferred technical scheme of the utility model, the two ends of described elastic tubes are provided with the chondritic of protrusion, the front, winding district of described handle is longitudinally provided with several breach along handle, breach is towards outside, winding district or the inner side of handle, adjacent breach is towards difference, and described breach size is advisable with the chondritic at the two ends that can block elastic tubes.
Handle adopts the design of quick detach breach, can rapid adjustment or replacing elastic tubes.
As the preferred technical scheme of the utility model, the relative position of tow sides, winding district of described handle is equipped with along the horizontal line of rabbet joint of handle for settling elastic tubes.
it is more convenient that the line of rabbet joint can make elastic tubes be wound around.
Brief description of the drawings
Fig. 1 is the structural representation of the long stroke chest expander of prior art.
Fig. 2 is elasticity material length and pull-up curve figure.
Fig. 3 is the structural representation of short stroke chest expander of the present utility model.
Fig. 4 is the handle arrangement schematic diagram jaggy of short stroke chest expander of the present utility model.
Fig. 5 is the handle arrangement schematic diagram that has the line of rabbet joint of short stroke chest expander of the present utility model.
Fig. 6 is the structural representation that short stroke chest expander of the present utility model only uses two elastic tubes.
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is done further and illustrated.
Detailed description of the invention
embodiment 1
As shown in Figure 3, this short stroke chest expander system comprises:
Two handles that are arranged in parallel 3, described handle is strip structure, comprise the winding district 31 at two ends and middle grip region 32, and 6 elastic tubes 4, described elastic tubes 4 one end tie up to 31 outsides, winding district of a handle, and the other end ties up to 31 outsides, winding district of another root handle, parallel distribution between described elastic tubes, 31 outsides, winding district of described handle refer to that handle is wound around the side of district 31 away from another handle, makes handle 3 be retracted to elastic tubes 4 two ends.
When use, hold the grip region of handle and can carry out stretching.
embodiment 2
As shown in Figure 4 and Figure 6, this short stroke chest expander comprises:
Two handles that are arranged in parallel 3, described handle is strip structure, comprises the winding district 31 at two ends and middle grip region 32, and 2 elastic tubes 4, every elastic tubes 4 winding district 31 after-combustion with one end at two handles 3;
The two ends of described elastic tubes 4 are provided with the chondritic 41 of protrusion, 31 fronts, winding district of described handle are longitudinally provided with several breach 311 along handle, breach 311 is towards 31 outsides, winding district or the inner side of handle, adjacent breach 311 is towards difference, and described breach 311 sizes are advisable with the chondritic 41 at the two ends that can block elastic tubes 4.
The mode of elastic tubes after-combustion can further shorten the natural length of chest expander, and the gap structure on handle makes elastic tubes can conveniently be wrapped in the winding district of handle.
embodiment 3
As shown in Figure 5 and Figure 6, this short stroke chest expander comprises:
Two handles that are arranged in parallel 3, described handle is strip structure, comprises the winding district 31 at two ends and middle grip region 32, and 2 elastic tubes 4, every elastic tubes 4 winding district 31 after-combustion with one end at two handles 3;
The relative position of 31 tow sides, winding district of handle 3 is equipped with along the horizontal line of rabbet joint 312 of handle for settling elastic tubes.
Slot line structure on handle makes elastic tubes can conveniently be wrapped in the winding district of handle.
The above is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, under any, in technical field, have and conventionally know the knowledgeable, not departing from the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little variation or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a short stroke chest expander, comprising:
Two handles that are arranged in parallel, described handle is strip structure, comprise the winding district at two ends and middle grip region, and some elastic tubes, described elastic tubes one end ties up to the outside, winding district of a handle, the other end ties up to the outside, winding district of another root handle, parallel distribution between described elastic tubes, and the outside, winding district of described handle refers to that handle is wound around the side of district away from another handle.
2. short stroke chest expander according to claim 1, is characterized in that: described elastic tubes has two, every elastic tubes winding district after-combustion with one end at two handles.
3. short stroke chest expander according to claim 1 and 2, it is characterized in that: the two ends of described elastic tubes are provided with the chondritic of protrusion, the front, winding district of described handle is longitudinally provided with several breach along handle, breach is towards outside, winding district or the inner side of handle, adjacent breach is towards difference, and described breach size is advisable with the chondritic at the two ends that can block elastic tubes.
4. short stroke chest expander according to claim 1 and 2, is characterized in that: the relative position of tow sides, winding district of described handle is equipped with along the horizontal line of rabbet joint of handle for settling elastic tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335605.1U CN204017253U (en) | 2014-06-23 | 2014-06-23 | Short stroke chest expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420335605.1U CN204017253U (en) | 2014-06-23 | 2014-06-23 | Short stroke chest expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204017253U true CN204017253U (en) | 2014-12-17 |
Family
ID=52057168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420335605.1U Expired - Fee Related CN204017253U (en) | 2014-06-23 | 2014-06-23 | Short stroke chest expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204017253U (en) |
-
2014
- 2014-06-23 CN CN201420335605.1U patent/CN204017253U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20210623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |