CN104632757A - Pump truck supporting leg oil cylinder - Google Patents
Pump truck supporting leg oil cylinder Download PDFInfo
- Publication number
- CN104632757A CN104632757A CN201510028175.8A CN201510028175A CN104632757A CN 104632757 A CN104632757 A CN 104632757A CN 201510028175 A CN201510028175 A CN 201510028175A CN 104632757 A CN104632757 A CN 104632757A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder barrel
- oil
- hole
- oil return
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Abstract
The invention discloses a pump truck supporting leg oil cylinder. The pump truck supporting leg oil cylinder is characterized in that a cylinder bottom is welded to one end of a cylinder barrel, an oil return through hole is formed in the side wall of the cylinder barrel, one end of the oil return through hole is communicated with an oil return hole formed in the cylinder bottom, the other end of the oil return through hole is communicated with an inner cavity of one end of the cylinder barrel, the inner wall of the other end of the cylinder barrel is provided with a guide sleeve, a piston rod penetrates through the guide sleeve to be inserted into the cylinder barrel, and a piston is arranged at the end, extending into the cylinder barrel, of the piston rod through a locking nut. In this way, an oil return pipe does not need to be arranged on the outer side of the cylinder barrel, the size of the cylinder body is reduced, the weight of the cylinder block is reduced, during operation, the oil cylinder cannot be damaged by an operation environment, and the service life of the oil cylinder is guaranteed.
Description
Technical field
The present invention relates to a kind of oil cylinder, is a kind of support oil cylinder on pump truck specifically.
Background technique
Support oil cylinder at present on pump truck, its return tube mostly is design outside cylinder barrel, when oil cylinder operation, because operating environment is complicated, as easy as rolling off a log by return tube damage, causes unnecessary damage.
Summary of the invention
The object of this invention is to provide that a kind of structure is simple, the support leg of pump truck hydraulic jack of long service life.
To achieve these goals, the present invention is welded with cylinder bottom in one end of cylinder barrel, oil return through-hole is provided with in the interior of described cylinder barrel, one end of oil return through-hole connects with the spill port on cylinder bottom and is connected, the other end of oil return through-hole and one end inner chamber of cylinder barrel connect, guide sleeve is located on the other end inwall of cylinder barrel, and piston rod inserts in cylinder barrel through guide sleeve, and piston is located at by locking nut one end that piston rod stretches into cylinder barrel.
By above setting, the present invention, without the need to the arranged outside return tube at cylinder barrel, reduces cylinder body volume, reduces cylinder body weight, and can not cause damage because of operating environment when operation, guarantees oil cylinder working life.
Accompanying drawing explanation
Now the present invention will be further described by reference to the accompanying drawings.
Fig. 1 is structural representation of the present invention.
In figure: 1, cylinder barrel, 2, cylinder bottom, 3, oil return through-hole, 4, spill port, 5, guide sleeve, 6, piston rod, 7, piston, 8, locking nut, 9, oil inlet hole.
Embodiment
As shown in Figure 1, the present invention is welded with cylinder bottom 2 in one end of cylinder barrel 1, oil return through-hole 3 is provided with in the interior of described cylinder barrel 1, one end of oil return through-hole 3 connects with the spill port 4 on cylinder bottom 2 and is connected, the other end of oil return through-hole 3 and one end inner chamber of cylinder barrel 1 connect, guide sleeve 5 is located on the other end inwall of cylinder barrel 1, and piston rod 6 inserts in cylinder barrel 1 through guide sleeve 5, and piston 7 is located at by locking nut 8 one end that piston rod 6 stretches into cylinder barrel 1.By above setting, the present invention is arranged on the supporting leg of pump truck, during pump truck work material conveying, just the support oil cylinder of pump truck must be opened support car body, hydraulic oil enters the inside of cylinder barrel 1 by the oil inlet hole 9 on cylinder bottom 2 of the present invention, promotes piston 7 and moves downward, piston rod 6 stretches out, until the bearing of piston rod 6 one end and earth surface, support pump truck car body, make pump truck held stationary.When needs piston rod 6 resets, hydraulic oil enters into one end of cylinder barrel 1 by oil return through-hole 3, and hydraulic oil promotes piston 7 and moves upward, and piston rod 6 is retracted and resetted.
Claims (1)
1. support leg of pump truck oil cylinder, it is characterized in that: be welded with cylinder bottom in one end of cylinder barrel, oil return through-hole is provided with in the interior of described cylinder barrel, one end of oil return through-hole connects with the spill port on cylinder bottom and is connected, the other end of oil return through-hole and one end inner chamber of cylinder barrel connect, guide sleeve is located on the other end inwall of cylinder barrel, and piston rod inserts in cylinder barrel through guide sleeve, and piston is located at by locking nut one end that piston rod stretches into cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028175.8A CN104632757A (en) | 2015-01-20 | 2015-01-20 | Pump truck supporting leg oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028175.8A CN104632757A (en) | 2015-01-20 | 2015-01-20 | Pump truck supporting leg oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632757A true CN104632757A (en) | 2015-05-20 |
Family
ID=53211867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510028175.8A Pending CN104632757A (en) | 2015-01-20 | 2015-01-20 | Pump truck supporting leg oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632757A (en) |
-
2015
- 2015-01-20 CN CN201510028175.8A patent/CN104632757A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
|
| WD01 | Invention patent application deemed withdrawn after publication |