CN204017252U - Adjustable resistance chest expander - Google Patents
Adjustable resistance chest expander Download PDFInfo
- Publication number
- CN204017252U CN204017252U CN201420066039.9U CN201420066039U CN204017252U CN 204017252 U CN204017252 U CN 204017252U CN 201420066039 U CN201420066039 U CN 201420066039U CN 204017252 U CN204017252 U CN 204017252U
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- China
- Prior art keywords
- hand lever
- buckle
- left hand
- right hand
- steel wire
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Abstract
The utility model relates to a kind of adjustable resistance chest expander.The pulling force size of chest expander can regulate, because steel wire tension spring tension used is identical with the radical of dismounting steel wire extension spring usually.The utility model composition comprises: left hand lever (1), described left hand lever and right hand lever (2) are inlaid with the fixing hole (4) that steel bar (3) is formed, described left hand lever and right hand lever there are four fixing holes respectively, described fixing hole is provided with the buckle (5) that can freely dismantle, and the buckle that described left hand lever connects steel wire extension spring (6) corresponding with on described right hand lever by buckle connects.The utility model is applied to physical training chest expander.
Description
technical field:
the utility model relates to a kind of adjustable resistance chest expander of physical training.
background technology:
chest expander is an ancient physical training equipment, and it is easy to use, and price is convenient, is convenient to popularize.It opens the extension spring of chest expander, the elastic resistance that the extension spring of antagonism steel wire produces by the exercise person ground tractive that holds water, and carries out resistance exercise, to reach development physical efficiency, salubrious exercise object.Wherein the whether suitable person taking exercise of chest expander steel wire tension spring tension size, directly affects body-building effect.
current manufacturer, the steel wire tension spring chest-developer kind of producing is a lot, and the radical mainly having a steel wire extension spring according to chest expander is divided into: two chest expanders, three chest expanders, four chest expanders, five chest expanders etc. are several.But no matter be which kind of chest expander, its several steel wire extension springs used all have the identical feature of pulling force size, and when common every root steel wire extension spring is pulled open as ordinary person's arm Zhang Changdu, required pulling force is about 6 kilograms.The pulling force size of chest expander can regulate with the radical of dismounting steel wire extension spring usually, because steel wire tension spring tension used is identical, in fact two chest expanders only have 2 kinds of resistances to regulate; Three chest expanders have 3 kinds of resistances to regulate; Four chest expanders have 4 kinds of resistances to regulate; Five chest expanders also only have five kinds of resistances to regulate, and in other words, the chest expander sold in the market, several chest expanders only have at most several resistance to regulate.The problem that always there is puzzled person taking exercise in practical training is: chest expander resistance-adjustable adjusting range is very limited.For four steel wire tension spring chest-developers, suppose that the maximum pull of person taking exercise is 16 kilograms, in exercise, chest expander is disassembled into the pulling force of 2 steel wire extension springs is every root pulling force 6 kilograms × 2=12 kilograms, the pulling force that person taking exercise is 16 kilograms is far longer than 12 kilograms, can feel very light during exercise, the load intensity of taking exercise is inadequate, and with when being disassembled into the chest expander of 3, 6 kilograms × 3=18 kilograms, because the pulling force of person taking exercise is 16 kilograms be less than 18 kilograms, person taking exercise draws again motionless, can not draw away the chest expander of 3, this directly affects train on, the lighter reduces the exercise enthusiasm of person taking exercise, severe one can not find the suitable chest expander of pulling force because of person taking exercise, can take exercise chest expander and lose information, final meeting is away from chest expander.
through observation, due to original chest expander spring between due to connectivity problem different with the length of the spring of varying strength, not there is commutativity, therefore can not use with always.
content of the present utility model is:
the purpose of this utility model is for Problems existing in background technology, provides the chest expander of the adjustable resistance that a kind of range of application is larger.
the utility model is achieved through the following technical solutions:
a kind of adjustable resistance chest expander, its composition comprises: left hand lever, described left hand lever and right hand lever are inlaid with the fixing hole that steel bar is formed, described left hand lever and right hand lever there are four fixing holes respectively, described fixing hole is provided with the buckle that can freely dismantle, described left hand lever connects steel wire extension spring by buckle, and the buckle described in corresponding with on described right hand lever connects;
four described fixing holes are bent by the steel bar described in and form, described steel bar is embedded in described left hand and right hand lever, four described fixing holes are in the groove of described left hand and right hand lever, have four connected curved surfaces inside the lever of described left hand and right hand lever;
described buckle has the large arch section be connected with steel wire extension spring, and the end of described large arch section is short vertical bar, and described buckle has the little arch section be connected with fixing hole, and the end of described little arch section is long vertical bar;
four steel wire extension springs respectively with on described left hand lever described in buckle, on fixing hole described in described right hand lever described in buckle be connected; Described steel wire extension spring is one group, and between described spring, initial length is identical but spring stiffness different.
beneficial effect:
1. the traditional chest expander of the utility model specification, described left hand lever and right hand lever are inlaid with the fixing hole that steel bar is formed, described left hand lever and right hand lever there are four fixing holes respectively, described fixing hole is provided with buckle, and the buckle described in described left hand lever is corresponding with on described right hand lever by the extension spring of buckle connection steel wire connects.Overcome the disadvantage that different-stiffness spring can not form a group, practical, the most pulling force of chest expander on a large scale in, become the extension spring of different pulling force through exchanging dismountable, this chest expander can regulate pulling force size, the conversion of more than 15 kinds.
the utility model is compact to design, durable in use, easy to use, and dismounting is simple, applied widely.The described buckle dismounting and change that four steel wire extension springs are connected on described left hand lever and the described fixing hole described in right hand lever is convenient.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 of the present utility modelly holds handle profile.
accompanying drawing 3 is structural representations of the buckle that can freely dismantle of the present utility model.
accompanying drawing 4 is steel wire extension spring structure schematic diagrames of the different pulling force of the utility model.
detailed description of the invention:
embodiment 1:
a kind of adjustable resistance chest expander, its composition comprises: left hand lever 1, described left hand lever and right hand lever 2 are inlaid with the fixing hole 4 that steel bar 3 is formed, described left hand lever and right hand lever there are four fixing holes respectively, described fixing hole is provided with the buckle 4 that can freely dismantle, described left hand lever connects steel wire extension spring 6 by buckle, and the buckle corresponding with on described right hand lever connects.
embodiment 2:
adjustable resistance chest expander according to embodiment 1, four steel wire extension springs respectively with on described left hand lever described in buckle, on fixing hole described in described right hand lever described in buckle be connected; Described steel wire extension spring is one group, and between described spring, initial length is identical but spring stiffness different.
embodiment 3:
adjustable resistance chest expander according to embodiment 1, when regulating chest expander resistance, by freely exchanging the different steel wire extension spring radical of dismountable pulling force, regulates chest expander resistance.
Claims (1)
1.
a kind of adjustable resistance chest expander, its composition comprises: left hand lever, it is characterized in that: described left hand lever and right hand lever are inlaid with the fixing hole that steel bar is formed, described left hand lever and right hand lever there are four fixing holes respectively, described fixing hole is provided with the buckle that can freely dismantle, described left hand lever connects steel wire extension spring by buckle, and the buckle described in corresponding with on described right hand lever connects;
four described fixing holes are bent by the steel bar described in and form, described steel bar is embedded in described left hand and right hand lever, four described fixing holes are in the groove of described left hand and right hand lever, have four connected curved surfaces inside the lever of described left hand and right hand lever;
described buckle has the large arch section be connected with steel wire extension spring, and the end of described large arch section is short vertical bar, and described buckle has the little arch section be connected with fixing hole, and the end of described little arch section is long vertical bar;
four steel wire extension springs respectively with on described left hand lever described in buckle, on fixing hole described in described right hand lever described in buckle be connected; Described steel wire extension spring is one group, and between described spring, initial length is identical but spring stiffness different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066039.9U CN204017252U (en) | 2014-02-14 | 2014-02-14 | Adjustable resistance chest expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066039.9U CN204017252U (en) | 2014-02-14 | 2014-02-14 | Adjustable resistance chest expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204017252U true CN204017252U (en) | 2014-12-17 |
Family
ID=52057167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066039.9U Expired - Fee Related CN204017252U (en) | 2014-02-14 | 2014-02-14 | Adjustable resistance chest expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204017252U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344064A (en) * | 2015-09-11 | 2016-02-24 | 深圳市福田区青少年科技教育协会 | Adjustable chest developer |
| CN109853853A (en) * | 2019-02-15 | 2019-06-07 | 广东庆余堂建筑科技有限公司 | A kind of prestress wire anchor |
-
2014
- 2014-02-14 CN CN201420066039.9U patent/CN204017252U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344064A (en) * | 2015-09-11 | 2016-02-24 | 深圳市福田区青少年科技教育协会 | Adjustable chest developer |
| CN109853853A (en) * | 2019-02-15 | 2019-06-07 | 广东庆余堂建筑科技有限公司 | A kind of prestress wire anchor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170214 |