CN203604339U - Locking device of supporting oil cylinder of boarding bridge - Google Patents
Locking device of supporting oil cylinder of boarding bridge Download PDFInfo
- Publication number
- CN203604339U CN203604339U CN201320726570.XU CN201320726570U CN203604339U CN 203604339 U CN203604339 U CN 203604339U CN 201320726570 U CN201320726570 U CN 201320726570U CN 203604339 U CN203604339 U CN 203604339U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- cylinder
- locking device
- connecting bridge
- cylinder body
- 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 discloses a locking device of a supporting oil cylinder of a boarding bridge. The locking device of the supporting oil cylinder of the boarding bridge comprises a cylinder body and an oil cylinder base, wherein a piston rod is arranged in the cylinder body, a groove is formed in the cylinder body, a counterweight valve is embedded in the groove and makes contact with a lower cavity of the supporting oil cylinder, and an oil port is formed in the oil cylinder base. A locking structure is changed, and the counterweight valve makes direct contact with the cylinder body and is used for directly controlling the supporting oil cylinder, so that the safety in the use process of the boarding bridge is guaranteed.
Description
Technical field
The utility model relates to connecting bridge drive unit field, relates in particular to connecting bridge support cylinder locking device.
Background technique
In prior art, being generally support cylinder joins by pipe joint and hard tube and valve piece, realize the locking to connecting bridge support cylinder, also have in addition by valve piece and support cylinder are joined, between is by the sealing of O type circle, in actual use, because O type circle or hard tube are easily aging impaired, easily occur hydraulic fluid leak, thereby cause supporting that oil cylinder loses support to connecting bridge, bearing material or personal security to connecting bridge constitute a threat to.
Model utility content
For solving the problems of the technologies described above, we have proposed a kind of connecting bridge support cylinder locking device, and by changing locking structure, the valve that will contend with directly contacts with cylinder body, utilize the valve that contends with directly to control support cylinder, to guarantee connecting bridge Security in use.
For achieving the above object, the technical solution of the utility model is as follows:
Connecting bridge support cylinder locking device, comprises cylinder body and cylinder pedestal, in described cylinder body, is provided with piston rod, on described cylinder body, be provided with groove, in described groove, be equipped with the valve that contends with, described in the valve that contends with contact with the cavity of resorption of support cylinder, on described cylinder pedestal, have hydraulic fluid port.
Beneficial effect: utilize hydraulic system oil pipe oil supply port fuel feeding, by the valve that contends with, fluid can directly enter the cavity of resorption of support cylinder, and now support cylinder stretches out, and connecting bridge is subject to support cylinder thrust to do ascending motion; When decline, the valve that contends with is opened, and fluid can directly enter in fuel tank; In the time that connecting bridge is static, support cylinder can remain the support to connecting bridge load, by the locking of the valve that contends with, can avoid in prior art seal ring or oil pipe because the aging connecting bridge that causes declines suddenly, has promoted the Security of connecting bridge.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the sectional view schematic diagram of the disclosed connecting bridge support cylinder of the utility model embodiment locking device.
Numeral and the represented corresponding part title of letter in figure:
1, the valve that contends with; 2, cylinder pedestal; 3, piston rod; 4, cylinder body; 5, hydraulic fluid port.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
As shown in Figure 1, connecting bridge support cylinder locking device, comprise cylinder body 4 and cylinder pedestal 2, in described cylinder body 4, be provided with piston rod 3, on described cylinder body 4, be provided with groove, in described groove, be equipped with the valve 1 that contends with, the described valve 1 that contends with contacts with the cavity of resorption of support cylinder, on described cylinder pedestal 2, have hydraulic fluid port 5, utilize hydraulic system oil pipe oil supply port 5 fuel feeding, by the valve 1 that contends with, fluid can directly enter the cavity of resorption of support cylinder, now support cylinder stretches out, and connecting bridge is subject to support cylinder thrust to do ascending motion; When decline, the valve 1 that contends with is opened, and fluid can directly enter in fuel tank; In the time that connecting bridge is static, support cylinder can remain the support to connecting bridge load, by the locking of the valve 1 that contends with, can avoid in prior art seal ring or oil pipe because the aging connecting bridge that causes declines suddenly, has promoted the Security of connecting bridge.
Above-described is only the preferred implementation of the utility model connecting bridge support cylinder locking device; should be understood that; for the person of ordinary skill of the art; do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (1)
1. connecting bridge support cylinder locking device, comprises cylinder body and cylinder pedestal, in described cylinder body, is provided with piston rod, it is characterized in that, on described cylinder body, is provided with groove, in described groove, is equipped with the valve that contends with, described in the valve that contends with contact with the cavity of resorption of support cylinder; On described cylinder pedestal, have hydraulic fluid port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726570.XU CN203604339U (en) | 2013-11-18 | 2013-11-18 | Locking device of supporting oil cylinder of boarding bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726570.XU CN203604339U (en) | 2013-11-18 | 2013-11-18 | Locking device of supporting oil cylinder of boarding bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604339U true CN203604339U (en) | 2014-05-21 |
Family
ID=50717016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726570.XU Expired - Fee Related CN203604339U (en) | 2013-11-18 | 2013-11-18 | Locking device of supporting oil cylinder of boarding bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485085A (en) * | 2016-01-14 | 2016-04-13 | 华德宝机械（昆山）有限公司 | Lifting oil cylinder system for boarding bridge, lifting method and boarding bridge with system |
-
2013
- 2013-11-18 CN CN201320726570.XU patent/CN203604339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485085A (en) * | 2016-01-14 | 2016-04-13 | 华德宝机械（昆山）有限公司 | Lifting oil cylinder system for boarding bridge, lifting method and boarding bridge with system |
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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: 20140521 Termination date: 20191118 |