CN202015441U - Improved pneumatic tension device - Google Patents
Improved pneumatic tension device Download PDFInfo
- Publication number
- CN202015441U CN202015441U CN2011200716282U CN201120071628U CN202015441U CN 202015441 U CN202015441 U CN 202015441U CN 2011200716282 U CN2011200716282 U CN 2011200716282U CN 201120071628 U CN201120071628 U CN 201120071628U CN 202015441 U CN202015441 U CN 202015441U
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- sleeve body
- pull bar
- chest expander
- tension device
- 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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- Sealing Devices (AREA)
Abstract
The utility model relates to an improved pneumatic tension device, which comprises an outer sleeve and a pull rod. A handle is arranged at the left end of the outer sleeve, one end of the pull rod is disposed in the outer sleeve, another handle is arranged at the other end of the pull rod, a guide plate capable of sliding along the inner wall of the outer sleeve is disposed at the end, in the outer sleeve, of the pull rod, an air outlet is arranged at the top of the right end of the outer sleeve, and an air sac is connected to the air outlet. The improved pneumatic tension device is characterized in that a seal ring is disposed between the pull rod and the outer sleeve. The improved pneumatic tension device is simple in structure, fine in sealing effect and safe and reliable in use.
Description
Technical field
The utility model relates to a kind of chest expander, specifically, relates to a kind of improved gas formula chest expander.
Background technology
Along with the progress and the development of society, people's living standard improves constantly, and people are also more and more stronger to the serious hope of good health and a long life.Strengthen and improve the important topic that the physical training level has become society.Present gas formula chest expander mostly adopts mechanical seal, and the sealing effectiveness of mechanical seal is poor, makes chest expander very unstable.Therefore, need a kind of new technical scheme to solve above-mentioned technical problem.
The utility model content
The purpose of this utility model provides a kind of improved gas formula chest expander, the practical safety of the good sealing effect of this chest expander.
The technical solution adopted in the utility model is:
A kind of improved gas formula chest expander, it comprises outer sleeve body and pull bar, the left end of described outer sleeve body is provided with handle, one end of described pull bar is as in the outer sleeve body, the other end of described pull bar is provided with handle, and the tie rod end in the described outer sleeve body is provided with the guide plate that can slide along the inwall of outer sleeve body, and the right-hand member top of described outer sleeve body is provided with the gas outlet, be connected with air bag on the described gas outlet, be provided with sealing ring between described pull bar and outer sleeve body.
Be provided with the pilot seal circle between the inside of described guide plate and outer sleeve body.
Described sealing ring is an elastic seal ring.
The utility model is provided with sealing ring between pull bar and outer sleeve body, the sealing circle can improve sealing of the present utility model, improves the security of chest expander.
The utility model has the advantages that: simple in structure, good sealing effect, safe and reliable.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Wherein: 1, outer sleeve body, 2, pull bar, 3, handle, 4, guide plate, 5, air-vent, 6, venthole, 7, air bag, 8, sealing ring, 9, the pilot seal circle.
The specific embodiment
As shown in Figure 1, a kind of improved gas formula chest expander, it comprises outer sleeve body 1 and pull bar 2, left end at outer sleeve body 1 is provided with handle 3, one end of pull bar 2 is as in the outer sleeve body 1, the other end of pull bar 2 is provided with handle 3, tie rod end in the outer sleeve body 1 is provided with the guide plate 4 that can slide along the inwall of outer sleeve body 1, right-hand member top at outer sleeve body 1 is provided with gas outlet 6, be connected with air bag 7 on this gas outlet 6, be provided with sealing ring 8 at pull bar 2 and 1 of outer sleeve body, sealing circle 8 can improve sealing of the present utility model, improve the security of chest expander, be subjected to the influence of pressure in the outer sleeve body 1, be provided with air-vent 5 at the left end top of outer sleeve body 1, in order further to improve sealing property, be provided with pilot seal circle 9 between the inside of guide plate 4 and outer sleeve body 1, in order to improve the service life of sealing ring, sealing ring 8 adopts elastic seal ring.
Claims (3)
1. improved gas formula chest expander, it comprises outer sleeve body and pull bar, the left end of described outer sleeve body is provided with handle, one end of described pull bar is as in the outer sleeve body, the other end of described pull bar is provided with handle, and the tie rod end in the described outer sleeve body is provided with the guide plate that can slide along the inwall of outer sleeve body, and the right-hand member top of described outer sleeve body is provided with the gas outlet, be connected with air bag on the described gas outlet, it is characterized in that: be provided with sealing ring between described pull bar and outer sleeve body.
2. a kind of improved gas formula chest expander according to claim 1 is characterized in that: be provided with the pilot seal circle between the inside of described guide plate and outer sleeve body.
3. a kind of improved gas formula chest expander according to claim 1, it is characterized in that: described sealing ring is an elastic seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200716282U CN202015441U (en) | 2011-03-15 | 2011-03-15 | Improved pneumatic tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200716282U CN202015441U (en) | 2011-03-15 | 2011-03-15 | Improved pneumatic tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202015441U true CN202015441U (en) | 2011-10-26 |
Family
ID=44809123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200716282U Expired - Fee Related CN202015441U (en) | 2011-03-15 | 2011-03-15 | Improved pneumatic tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202015441U (en) |
-
2011
- 2011-03-15 CN CN2011200716282U patent/CN202015441U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111026 Termination date: 20120315 |