CN207861779U - Bidirectional hydraulic mandril - Google Patents
Bidirectional hydraulic mandril Download PDFInfo
- Publication number
- CN207861779U CN207861779U CN201721615803.3U CN201721615803U CN207861779U CN 207861779 U CN207861779 U CN 207861779U CN 201721615803 U CN201721615803 U CN 201721615803U CN 207861779 U CN207861779 U CN 207861779U
- Authority
- CN
- China
- Prior art keywords
- reversal valve
- oil
- connecting seat
- support head
- piston support
- 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
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 12
- 239000003921 oil Substances 0.000 claims abstract description 23
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Emergency Lowering Means (AREA)
Abstract
Bidirectional hydraulic mandril, including a connecting seat, connecting seat or so respectively symmetrically connects an oil cylinder, a piston support head is set inside each oil cylinder, piston support head and cross top are connected through a screw thread can 360 degree rotation, one reversal valve passes through connecting seat and is connected with two oil cylinders in left and right, star-like handwheel is arranged on reversal valve, reversal valve is connected by oil pipe with hydraulic oil source.The utility model uses star-like handwheel, is convenient for the operation of reversal valve, realizes the flexible of mandril；Piston support head thread connects, it can 360 degree rotation, accurate positioning, it according to circumstances can quickly screw and replace work head or increase extension rod, rotary cross support head facilitates positioning, firm supporting, it is combined with the control valve to automatically reset using bidirectional hydraulic lock, there is self-locking function, the safety that fortuitous event also can guarantee operator is encountered in operation.
Description
Technical field
The utility model is related to a kind of fire-fighting and rescue tools, and in particular to a kind of bidirectional hydraulic mandril.
Background technology
Earthquake relief work, fire-fighting and rescue, lifting passage and underground metal mine, small-size coal mine tunnel in and field reveal
When the local operation of its unregulated power, often has various weights and support or various barriers needs is needed to move, if cannot be timely
Dangerous situation or even life danger will occur for processing, when encountering the above situation, can only use such as jack at present, hydraulic tongs, lead
The simple mechanical equipments such as chain, small air cushion, light rig, these used auxiliary tools are also mainly common common non-special
The rescue tool of industry, and the mandril that fire-fighting and rescue department uses at present, are all unidirectional supports, cannot meet the needs of two-way support
Rescue environment, in addition existing mandril can not quick-replaceable work head or increase extension rod；Reversal valve stirs inconvenience；Work head
It supports insecure, affects rescue efficiency and effect.
Utility model content
The utility model provides a kind of bidirectional hydraulic mandril, can only unidirectionally be supportted with solving mandril of the existing technology
Top quick-replaceable work head or can not increase extension rod, and reversal valve stirs inconvenient and work head and supports unstable problem.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of bidirectional hydraulic mandril, including a connecting seat, connecting seat or so respectively symmetrically connect an oil cylinder, each oil
Cylinder interior is arranged a piston support head, piston support head and cross top be connected through a screw thread can 360 degree rotation, one is changed
Connecting seat is passed through to valve and is connected with two oil cylinders in left and right, and star-like handwheel is set on reversal valve, and reversal valve passes through oil pipe and hydraulic pressure
Oil sources is connected.
One hydraulic lock is set in above-mentioned reversal valve, to prevent hydraulic oil from flowing back.
The operation principle of utility model device is：By control reversal valve by the hydraulic oil in oil pipe send to left and right two
In oil cylinder, under the action of hydraulic oil, the two piston support heads in left and right respectively to external extension, object to be supported to needs into
The two-way support of row.
The utility model uses star-like handwheel, is convenient for the operation of reversal valve, realizes the flexible of mandril；Piston support head thread
Connection, can 360 degree rotation, accurate positioning, according to circumstances can quickly screw replace work head or increase extension rod.Rotary cross supports
Top, facilitates positioning, firm supporting.It is combined with the control valve to automatically reset using bidirectional hydraulic lock, there is self-locking function, making
The safety that fortuitous event also can guarantee operator is encountered when industry by connecting seat two piston support heads of symmetrical connection to lead to
It crosses reversal valve and realizes two-way support, the support rescue for greatly facilitating fire-fighting, traffic police team, industrial and mining enterprises and other rescue departments is made
Industry.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the star-like handwheel of the utility model；
Fig. 3 is the structural schematic diagram of the utility model cross-shaped fastener.
1 piston support head, 2 oil cylinders, 3 connecting seats, 4 hydraulic locks, 5 reversal valves, 6 oil pipes, 7 star-like handwheels, 8 cross-shapeds in figure
Fastener, 9 screw threads.
Specific implementation mode
As shown in Figure 1, Figure 2 and Figure 3, a kind of bidirectional hydraulic mandril, including a connecting seat 3, connecting seat 3 or so are right respectively
Claim connection one oil cylinder 2, the inside of each oil cylinder 2 is arranged a piston support head 1, a reversal valve 5 pass through connecting seat 3 and with a left side
Right two oil cylinders 2 are connected, and reversal valve 5 is connected by oil pipe 6 with hydraulic oil source, and a hydraulic lock 4 is arranged in reversal valve 5, to prevent
Only hydraulic oil flows back, and star-like handwheel 7 is arranged on reversal valve 5, is convenient for the operation of reversal valve 5, realizes that piston support head 1 is flexible；It is living
Plug support head 1 comes directly towards 8 with cross and is connect by screw thread 9, can 360 degree rotation, accurate positioning according to circumstances can quickly screw more
Change jobs first 8 or increase extension rod.Rotary cross support head 8, facilitates positioning, firm supporting.Using bidirectional hydraulic lock 4 and automatically
The control valve of reset combines, and has self-locking function, and the safety that fortuitous event also can guarantee operator is encountered in operation.
The operation principle of utility model device is：By control reversal valve by the hydraulic oil in oil pipe send to left and right two
In oil cylinder, under the action of hydraulic oil, the two piston support heads in left and right respectively to external extension, object to be supported to needs into
The two-way support of row.
Claims (2)
1. a kind of bidirectional hydraulic mandril, it is characterized in that including a connecting seat, connecting seat or so respectively symmetrically connects an oil cylinder,
One piston support head is set inside each oil cylinder, piston support head and cross top be connected through a screw thread can 360 degree rotation,
One reversal valve passes through connecting seat and is connected with two oil cylinders in left and right, star-like handwheel is arranged on reversal valve, reversal valve passes through oil pipe
It is connected with hydraulic oil source.
2. bidirectional hydraulic mandril according to claim 1 a, it is characterized in that hydraulic lock is arranged in reversal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721615803.3U CN207861779U (en) | 2017-11-28 | 2017-11-28 | Bidirectional hydraulic mandril |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721615803.3U CN207861779U (en) | 2017-11-28 | 2017-11-28 | Bidirectional hydraulic mandril |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207861779U true CN207861779U (en) | 2018-09-14 |
Family
ID=63468017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721615803.3U Expired - Fee Related CN207861779U (en) | 2017-11-28 | 2017-11-28 | Bidirectional hydraulic mandril |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207861779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483941A (en) * | 2019-01-29 | 2020-08-04 | 奥来救援科技有限公司 | Extendable hydraulic jack |
-
2017
- 2017-11-28 CN CN201721615803.3U patent/CN207861779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111483941A (en) * | 2019-01-29 | 2020-08-04 | 奥来救援科技有限公司 | Extendable hydraulic jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |