CN201943476U - Supporting rod - Google Patents
Supporting rod Download PDFInfo
- Publication number
- CN201943476U CN201943476U CN2011200007233U CN201120000723U CN201943476U CN 201943476 U CN201943476 U CN 201943476U CN 2011200007233 U CN2011200007233 U CN 2011200007233U CN 201120000723 U CN201120000723 U CN 201120000723U CN 201943476 U CN201943476 U CN 201943476U
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- CN
- China
- Prior art keywords
- opening
- hollow
- support bar
- ratchet
- mobile jib
- 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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Abstract
The utility model provides a supporting rod which comprises a hollow main rod, a hollow auxiliary rod, a ratchet and a stopper, wherein a first opening is formed on the side wall of the hollow main rod, the hollow auxiliary rod is arranged inside the hollow main rod, a second opening is formed on the side wall of the hollow auxiliary rod and positioned on the same side as the first opening, the ratchet is arranged on the inner side of the second opening through a positioning pin and can extend to the outside of the first opening through the second opening when the supporting rod is pushed open, recesses are formed at the end parts of the ratchet, and the stopper is arranged inside the hollow main rod and leans against the ratchet when the supporting rod is pushed open. The supporting rod has a simple structure and is convenient to operate, and the serviceability of the supporting rod is not affected by the external temperature.
Description
Technical field
The utility model relates to a kind of support bar, particularly a kind of low temperature resistant mechanical type support bar.
Background technology
Heavy-duty car (particularly motor bus) is extensive use of the support bar of air spring as its side door at present.Air spring is made of following several parts: pressure cylinder, piston rod, piston, sealing fairlead, filler (inert gas or gas mixture), cylinder inner control element and cylinder are controlled element (referring to controlled air spring) and joint etc. outward, its operating principle is to charge into inert gas or gas mixture in airtight pressure cylinder, make the pressure in the cavity be higher than atmospheric several times or tens times, thereby the pressure differential that the cross-sectional area that utilizes piston rod produces less than the cross-sectional area of piston realize the motion of piston rod.But because the sealing fairlead of air spring is a rubber parts, lower temperature resistance is relatively poor relatively, will become stiff at cryogenic conditions lower seal fairlead, thus air leakage failure, and result of use is not good yet under adverse circumstances such as many dirt or high temperature.Lock under the failure conditions at door when the side door that is equipped with air spring, door will be opened under the air spring effect voluntarily, influences travel safety.
Therefore, how to provide a kind of support bar that can under cryogenic conditions, normally use to be present technique field urgent problem.
The utility model content
At the technical problem of above-mentioned proposition, the purpose of this utility model is to provide a kind of support bar.This supporting bar structure is simple, and is easy to operate, and its usability is not subjected to externally temperature influence.
For achieving the above object, the utility model provides a kind of support bar, comprising:
The hollow mobile jib is offered first opening on this hollow mobile jib sidewall;
The secondary bar of hollow is located at described hollow mobile jib inside, and offers second opening on the sidewall of the described first opening homonymy;
Ratchet is arranged at the described second opening inboard by an alignment pin, and when this support bar struts, extend out to described first open outer side by described second opening, and this ratchet end has depression;
Limited block is arranged at described hollow mobile jib inside.
According to design of the present utility model, described limited block is arranged on the sidewall relative or adjacent with described first opening.
According to design of the present utility model, the secondary bar of described hollow has the 3rd opening, and described limited block is resisted against described ratchet by the 3rd opening.
According to design of the present utility model, it is characterized in that when this support bar folded, described ratchet was in the described second opening inboard.
According to design of the present utility model, described hollow mobile jib has the 4th opening, and is relative or adjacent with described first opening.
According to design of the present utility model, described the 4th opening is with respect to described the 3rd opening setting.
The beneficial effect of support bar of the present utility model is: this support bar adopts full mechanical, and its usability can not be subjected to the influence of ambient temperature again, thus the safety that has improved vehicle '.In addition, this supporting bar structure is simple, and is easy to operate, better compared to the air spring usability.
Description of drawings
Fig. 1 is the hollow mobile jib schematic diagram of the support bar of the utility model embodiment;
Fig. 2 is the secondary bar schematic diagram of hollow of the support bar of the utility model embodiment;
Fig. 3 is the support bar schematic diagram of the utility model embodiment;
Fig. 4 struts the process schematic diagram for the support bar of the utility model embodiment;
Fig. 5 folds the process schematic diagram for the support bar of the utility model embodiment.
The critical piece explanation
1 hollow mobile jib, 11 first openings
The secondary bar of 12 the 4th openings, 2 hollows
21 second openings 22 the 3rd opening
3 ratchets, 4 alignment pins
5 limited blocks
The specific embodiment
For ease of better understanding the utility model, now in conjunction with the accompanying drawings a preferred embodiment of the present utility model is described in detail as follows:
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the hollow mobile jib schematic diagram of the support bar of the utility model embodiment.Fig. 2 is the secondary bar schematic diagram of hollow of the support bar of the utility model embodiment.Fig. 3 is the support bar schematic diagram of the utility model embodiment.As shown in Figure 1 to Figure 3, the support bar of present embodiment, comprise: hollow mobile jib 1, the secondary bar 2 of hollow, ratchet 3 and limited block 5 are wherein offered first opening 11 on the sidewall of hollow mobile jib 1, the secondary bar 2 of hollow is located at hollow mobile jib 1 inside, and the sidewall at first opening, 11 homonymies offers second opening 21, ratchet 3 is arranged at second opening, 21 inboards by alignment pin 4, and the end of ratchet 3 has depression, and limited block 5 is arranged at hollow mobile jib 1 inside.
In addition, limited block 5 can be arranged on the sidewall relative or adjacent with first opening 11, and preferably, limited block 5 is arranged on the sidewall adjacent with first opening 11, but the utility model is not limited to this.The secondary bar 2 of hollow can have the 3rd opening 22, and limited block 5 enters the inside of the secondary bar 2 of hollow by the 3rd opening 22.Hollow mobile jib 1 can have the 4th opening 12, the four openings 12 can be relative or adjacent with described first opening, and preferably, the 4th opening 12 is provided with respect to the 3rd opening 22, but the utility model is not limited to this.
Please refer to Fig. 4 and Fig. 5, Fig. 4 struts the process schematic diagram for the support bar of the utility model embodiment.Fig. 5 folds the process schematic diagram for the support bar of the utility model embodiment.As shown in Figure 4, strut in the process at support bar, the secondary bar of the relative hollow of hollow mobile jib moves upward, and moves to ratchet thereby drive limited block, and when limited block was resisted against ratchet, first opening overlapped with second opening.Under the promotion of limited block, ratchet rotates around alignment pin, and the ratchet front end stretches out outside first opening by second opening.After the process that struts finished, owing to lose thrust, the hollow mobile jib moved downward the secondary bar of relative hollow.The end wall of first opening supports and is stuck in the depression of ratchet front end, stops the hollow mobile jib to continue to move downward with respect to the secondary bar of hollow, thus the state that maintenance struts.As shown in Figure 5, fold in the process at support bar, the secondary bar of the relative hollow of hollow mobile jib moves upward, and promotes the ratchet rotation thereby drive limited block, up to the sunk part that the end wall of first opening is broken away from fully the ratchet front end, the secondary bar of the relative hollow of hollow mobile jib this moment moves downward, limited block breaks away from the conflict with ratchet, and the end wall of first opening supports the front end that is stuck in ratchet, and the promotion ratchet rotates around alignment pin, in the ratchet front end was got back to second opening fully, support bar folded and finishes.
Above-described; it only is preferred embodiment of the present utility model; be not in order to limit scope of the present utility model; be that every simple, equivalence of doing according to the claims and the description of the utility model application changes and modification, all fall into the claim protection domain of the utility model patent.
Claims (6)
1. support bar is characterized in that comprising:
The hollow mobile jib is offered first opening on this hollow mobile jib sidewall;
The secondary bar of hollow is located at described hollow mobile jib inside, and offers second opening on the sidewall of the described first opening homonymy;
Ratchet is arranged at the described second opening inboard by an alignment pin, and when this support bar struts, extend out to described first open outer side by described second opening, and this ratchet end has depression;
Limited block is arranged at described hollow mobile jib inside.
2. support bar as claimed in claim 1 is characterized in that, described limited block is arranged on the sidewall relative or adjacent with described first opening.
3. support bar as claimed in claim 2 is characterized in that, the secondary bar of described hollow has the 3rd opening, and described limited block is resisted against described ratchet by the 3rd opening.
4. as each described support bar in the claim 1 to 3, it is characterized in that when this support bar folded, described ratchet was in the described second opening inboard.
5. support bar as claimed in claim 4 is characterized in that, described hollow mobile jib has the 4th opening, and is relative or adjacent with described first opening.
6. support bar as claimed in claim 5 is characterized in that, described the 4th opening is with respect to described the 3rd opening setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200007233U CN201943476U (en) | 2011-01-04 | 2011-01-04 | Supporting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200007233U CN201943476U (en) | 2011-01-04 | 2011-01-04 | Supporting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943476U true CN201943476U (en) | 2011-08-24 |
Family
ID=44470825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200007233U Expired - Fee Related CN201943476U (en) | 2011-01-04 | 2011-01-04 | Supporting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509564A (en) * | 2011-11-30 | 2012-06-20 | 汕头市兆华电业有限公司 | Automatically-lockable sliding support device |
| CN102658837A (en) * | 2012-05-28 | 2012-09-12 | 东风汽车公司 | Self-positioning engine hood brace rod structure |
-
2011
- 2011-01-04 CN CN2011200007233U patent/CN201943476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509564A (en) * | 2011-11-30 | 2012-06-20 | 汕头市兆华电业有限公司 | Automatically-lockable sliding support device |
| CN102658837A (en) * | 2012-05-28 | 2012-09-12 | 东风汽车公司 | Self-positioning engine hood brace rod structure |
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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: 20110824 Termination date: 20180104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |