CN202348177U - Door control safety device - Google Patents
Door control safety device Download PDFInfo
- Publication number
- CN202348177U CN202348177U CN 201120507556 CN201120507556U CN202348177U CN 202348177 U CN202348177 U CN 202348177U CN 201120507556 CN201120507556 CN 201120507556 CN 201120507556 U CN201120507556 U CN 201120507556U CN 202348177 U CN202348177 U CN 202348177U
- Authority
- CN
- China
- Prior art keywords
- valve
- safety device
- door control
- safety
- door
- 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 - Lifetime
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Abstract
The utility model relates to a door control safety device, which comprises a safety door, a connecting rod mechanism, a pair of hydraulic pliers, an unloading valve, a reversing valve and a lifting valve. The unloading valve, the reversing valve and the lifting valve are sequentially mounted on the pair of hydraulic pliers. The safety door is connected with the unloading valve through the connecting rod mechanism. The door control safety device is reasonable in structural design and convenient to operate and effectively improves operational safety of the hydraulic pliers.
Description
Technical field
The utility model relates to a kind of hydraulic test, particularly relates to a kind of gate safety device.
Background technology
At present, hydraulic tongs mostly is to adopt manual operation in last shackle work, manages and unloads in the pipe process on especially, and not only labour intensity is big, and operating personnel are injured because of maloperation easily.
Summary of the invention
The utility model has overcome deficiency of the prior art, and a kind of reasonable in design is provided, the gate safety device of handling safety.
In order to address the above problem, the utility model adopts following technical scheme:
The gate safety device comprises safety door, linkage, hydraulic tongs, unloader, reversal valve and lift valve, and unloader, reversal valve and lift valve are installed on the hydraulic tongs successively, and safety door is connected with unloader through linkage.
Compared with prior art, the beneficial effect of the utility model is:
The utility model reasonable in design, easy-to-operate effectively reduces operation labour intensity, has improved processing safety.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
The gate safety device; As shown in Figure 1; Comprise safety door 1, linkage 2, hydraulic tongs 3, unloader 4, reversal valve 5 and lift valve 6, unloader 4, reversal valve 5 and lift valve 6 are installed on the hydraulic tongs 3 successively, safety door 1 is connected with unloader 4 through linkage 2.
When opening the door, the motion of safety door 1 drivening rod, linkage 2 actions are closed unloader 4, the complete fuel cut-off of oil circuit.
At closing time, the motion of safety door 1 drivening rod, linkage 2 actions are opened unloader 4, and oil circuit recovers fuel feeding, and hydraulic tongs 3 carries out operate as normal.
Claims (1)
1. the gate safety device is characterized in that, comprises safety door, linkage, hydraulic tongs, unloader, reversal valve and lift valve, and unloader, reversal valve and lift valve are installed on the hydraulic tongs successively, and safety door is connected with unloader through linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120507556 CN202348177U (en) | 2011-12-07 | 2011-12-07 | Door control safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120507556 CN202348177U (en) | 2011-12-07 | 2011-12-07 | Door control safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348177U true CN202348177U (en) | 2012-07-25 |
Family
ID=46537186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120507556 Expired - Lifetime CN202348177U (en) | 2011-12-07 | 2011-12-07 | Door control safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348177U (en) |
-
2011
- 2011-12-07 CN CN 201120507556 patent/CN202348177U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |