CN205744347U - A kind of ground vacuum preloading experiment air extractor - Google Patents
A kind of ground vacuum preloading experiment air extractor Download PDFInfo
- Publication number
- CN205744347U CN205744347U CN201620678483.5U CN201620678483U CN205744347U CN 205744347 U CN205744347 U CN 205744347U CN 201620678483 U CN201620678483 U CN 201620678483U CN 205744347 U CN205744347 U CN 205744347U
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- China
- Prior art keywords
- vacuum
- vacuum tank
- valve lever
- tank
- piston cylinder
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a kind of ground vacuum preloading experiment air extractor, including vacuum mechanism, extraction sector and adapter sleeve, vacuum mechanism include one end be uncovered, the other end be the vacuum tank of contraction mouth, the port, contraction mouth one end of vacuum tank is provided with valve lever, it is taper that valve lever is positioned at one end of vacuum tank tank body, it is spherical for being positioned at the one end outside vacuum tank tank body, is provided with valve folding hole in vacuum tank tank body, is provided with sealing torr in the contraction mouth of vacuum tank；Extraction sector includes piston cylinder and fixes the frame of bleeding being connected with piston cylinder, bleed and be provided with the pull bar of bleeding stretching in piston cylinder in frame, end, one end connection that pull bar of bleeding stretches in piston cylinder has piston, one end that piston cylinder is relative with connecting frame of bleeding is provided with union joint, one end of adapter sleeve is connected together with union joint, and one end that the other end of adapter sleeve is spherical with valve lever is connected together.This utility model simple in construction, it is achieved convenient and low cost, uses simple operation, and practical, range is wide.
Description
Technical field
This utility model belongs to ground vacuum preloading experimental technique field, is specifically related to a kind of ground vacuum preloading experiment and uses
Air extractor.
Background technology
The most firm for top-out, ground has the effect that can not be substituted.The ground of building is the best, and upper strata is built
Build and be likely to collapse.On the one hand, especially under conditions of geological state is the best, such as hillside fields, sand ground or mud geology, there is height and contain
The features such as the water yield, high-compressibility, low-intensity, hypotonicity, the soil is porous, low bearing capacity, and has obvious rheological characteristic and
Fixed is structural.Although or soil layer quality is preferable, but when upper load is excessive, under building load effect, ground can produce
Bigger sedimentation, foundation capability and poor stability.On the other hand, along with China's economy and the development of mining cause,
Some such as area, mining area, the particularly exploitations in shallow embedding colliery, cause land subsidence, depression even to cave in, give through or be located
High-voltage power transmission tower, circuit and transformer station's ground on mining area cause the biggest threat and harm.For making ground have
Enough bearing capacitys, effectively eliminate the sedimentation and deformation of weak soil, improve foundation bearing capacity and stability, and reply ground is reinforced
Process with the needs meeting engineering construction.By vacuum extractor, make the soil body is formed negative pressure, by the pore water in soil body space
Extract out, thus reduce pore water pressure, increase effective stress, make the soil body produce consolidation, reduce posterior settlement, improve foundation bearing
Ability.
But, in carrying out ground vacuum preloading experimental test, owing to being restricted by field environmental condition, ground vacuum
Precompressed pumping process difficulty is big, and air extractor dismounting mode is complicated, wastes time and energy and dismounts relatively costly, it is impossible to ensures and reaches ground
The Expected Results of base vacuum preloading.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of ground
Vacuum preloading experiment air extractor, its simple in construction, reasonable in design, it is achieved convenient and low cost, use simple operation, work
Reliability is high, and practical, range is wide, it is simple to promote the use of.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of ground vacuum preloading experiment is used
Air extractor, it is characterised in that: include vacuum mechanism, extraction sector and adapter sleeve, described vacuum mechanism include one end be uncovered,
The other end is the vacuum tank of contraction mouth, and the port, contraction mouth one end of described vacuum tank is provided with the valve inserted in vacuum tank tank body
Door rod, it is taper that described valve lever is positioned at one end of vacuum tank tank body, and described valve lever is positioned at the one end outside vacuum tank tank body
For spherical, in described vacuum tank tank body, it is provided with the valve folding hole matched the one end with valve lever taper, described vacuum tank
Contraction mouth in be provided with and valve lever taper and spherical between the sealing torr of part interference fit；Described extraction sector includes
Piston cylinder and fix the frame of bleeding being connected with piston cylinder, described in bleed and be provided with the pull bar of bleeding stretching in piston cylinder, institute in frame
Stating the end, one end that pull bar of bleeding stretches in piston cylinder to connect and have piston, described piston cylinder relative one end of frame of bleeding with connection sets
Being equipped with the union joint in Snap joint overlaps, one end of described adapter sleeve is connected together with union joint, described adapter sleeve another
One end spherical with valve lever, one end is connected together.
Above-mentioned a kind of ground vacuum preloading experiment air extractor, it is characterised in that: described vacuum tank is transparent vacuum
Tank.
Above-mentioned a kind of ground vacuum preloading experiment air extractor, it is characterised in that: the described torr that seals is by elastomeric material
Make.
Above-mentioned a kind of ground vacuum preloading experiment air extractor, it is characterised in that pull bar of bleeding described in: is positioned at bleeds
One end in frame is provided with the handshake part that arc is shaft-like.
This utility model compared with prior art has the advantage that
1, simple in construction of the present utility model, reasonable in design, it is achieved convenient and low cost.
2, use simple operation of the present utility model, it is possible to solve well to carry out ground vacuum preloading test at laboratory
During air extractor dismounting difficulty is big, mounting means is complicated, waste time and energy, dismount relatively costly and fixing illusive ask
Topic.
3, functional reliability of the present utility model is high, it is possible to ensure the validity and reliability of ground vacuum preloading experiment,
Thus reach intended ground vacuum preloading experiment effect.
4, of the present utility model practical, range is wide, is widely portable to deep layer weak soil, loess and puddle quality
In the experiment of base precompressed aspect.
In sum, this utility model simple in construction, reasonable in design, it is achieved convenient and low cost, use simple operation, work
Making reliability high, practical, range is wide, it is simple to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the use view that valve folding hole is not blocked in one end of this utility model valve lever taper.
Fig. 2 is the use view that valve folding hole is blocked in one end of this utility model valve lever taper.
Description of reference numerals:
1-1 vacuum tank；1-2 valve lever；1-3 valve folding hole；
2 adapter sleeves；3-1 piston cylinder；3-2 bleeds frame；
3-3 bleeds pull bar；3-4 piston；3-5 union joint.
Detailed description of the invention
As depicted in figs. 1 and 2, ground vacuum preloading experiment air extractor of the present utility model, including vacuum mechanism, take out
Mechanism of qi structure and adapter sleeve 2, described vacuum mechanism includes that one end is vacuum tank 1-1 uncovered, that the other end is contraction mouth, described vacuum
The port, contraction mouth one end of tank 1-1 is provided with the valve lever 1-2, described valve lever 1-2 inserted in vacuum tank 1-1 tank body and is positioned at
One end in vacuum tank 1-1 tank body is taper, and one end that described valve lever 1-2 is positioned at outside vacuum tank 1-1 tank body is spherical, described
The valve folding hole 1-3 matched in the one end with valve lever 1-2 taper, described vacuum tank 1-1 it is provided with in vacuum tank 1-1 tank body
Contraction mouth in be provided with and valve lever 1-2 taper and spherical between the sealing torr 5 of part interference fit；Described extraction sector
Including piston cylinder 3-1 with fix the frame 3-2 that bleeds being connected with piston cylinder 3-1, described in bleed to be provided with in frame 3-2 and stretch into piston cylinder
The pull bar 3-3 that bleeds in 3-1, described in the end, one end that pull bar 3-3 stretches in piston cylinder 3-1 of bleeding connect and have piston 3-4, described
Piston cylinder 3-1 with connect bleed one end relative for frame 3-2 be provided with for Snap joint set 2 in union joint 3-5, described connection
One end of set 2 is connected together with union joint 3-5, and one end that the other end of described adapter sleeve 2 is spherical with valve lever 1-2 engages even
Connect.
In the present embodiment, described vacuum tank 1-1 is transparent vacuum tank.Using transparent vacuum tank, it is convenient to observe, sealing
Good.
In the present embodiment, the described torr 5 that seals is made up of elastomeric material.
In the present embodiment, described in the pull bar 3-3 that bleeds be positioned at one end of the frame 3-2 that bleeds and be provided with shaft-like the shaking hands of arc
Portion.
When this utility model uses, first, valve lever 1-2 is pulled out, it is ensured that one end of valve lever 1-2 taper is not blocked up
Live in valve folding hole 1-3, bleed smooth and easy with guarantee；Then, one end of adapter sleeve 2 is connected together with union joint 3-5, will connect
One end that the other end of set 2 is spherical with valve lever 1-2 is connected together, and has thus connected vacuum mechanism and extraction sector；So
After, the opening end of vacuum tank 1-1 is directed at the ground-based experiment sample of evacuation to be carried out, finally, Rapid lifting is bled pull bar
3-3 for several times, bleeds, and reaches controlled underbalance in making vacuum tank 1-1, makes the inside and outside draught head that formed of ground basement membrane, argillic horizon generation
Consolidation pressure, reduces pore water pressure and increases ground effective stress；After vacuum tank 1-1 is adsorbed in foundation surface, will be even
Female connector 2 one end spherical with valve lever 1-2 separates, and flicking valve lever 1-2 makes one end of valve lever 1-2 taper block valve and opens
Close hole 1-3, with anti-gas-leak, reach ground vacuum preloading effect.
The above, be only preferred embodiment of the present utility model, not impose any restrictions this utility model, every
Any simple modification, change and equivalent structure change above example made according to this utility model technical spirit, the most still
Belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. a ground vacuum preloading experiment air extractor, it is characterised in that: include vacuum mechanism, extraction sector and adapter sleeve
(2), described vacuum mechanism includes that one end is vacuum tank (1-1) uncovered, that the other end is contraction mouth, described vacuum tank (1-1)
Port, contraction mouth one end is provided with the valve lever (1-2) inserted in vacuum tank (1-1) tank body, and described valve lever (1-2) is positioned at
One end in vacuum tank (1-1) tank body is taper, and one end that described valve lever (1-2) is positioned at outside vacuum tank (1-1) tank body is ball
Shape, is provided with the valve folding hole (1-3) matched in the one end with valve lever (1-2) taper in described vacuum tank (1-1) tank body,
Be provided with in the contraction mouth of described vacuum tank (1-1) and valve lever (1-2) taper and spherical between part interference fit close
Envelope torr (5)；Described extraction sector includes piston cylinder (3-1) and the bleed frame (3-2) that be connected fixing with piston cylinder (3-1), described
Bleed and be provided with the pull bar of bleeding (3-3) stretched in piston cylinder (3-1) in frame (3-2), described in pull bar (3-3) of bleeding stretch into piston
End, one end in cylinder (3-1) connects has piston (3-4), described piston cylinder (3-1) to bleed with connection the relative one end of frame (3-2)
The union joint (3-5) being provided with in Snap joint set (2), one end of described adapter sleeve (2) engages with union joint (3-5) even
Connecing, one end that the other end of described adapter sleeve (2) is spherical with valve lever (1-2) is connected together.
2. according to a kind of ground vacuum preloading experiment air extractor described in claim 1, it is characterised in that: described vacuum tank
(1-1) it is transparent vacuum tank.
3. according to a kind of ground vacuum preloading experiment air extractor described in claim 1, it is characterised in that: described sealing is held in the palm
(5) it is made up of elastomeric material.
4. according to a kind of ground vacuum preloading experiment air extractor described in claim 1, it is characterised in that bleed described in: and draw
Bar (3-3) is positioned at one end of frame of bleeding (3-2) and is provided with the handshake part that arc is shaft-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678483.5U CN205744347U (en) | 2016-06-30 | 2016-06-30 | A kind of ground vacuum preloading experiment air extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678483.5U CN205744347U (en) | 2016-06-30 | 2016-06-30 | A kind of ground vacuum preloading experiment air extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744347U true CN205744347U (en) | 2016-11-30 |
Family
ID=57381026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678483.5U Expired - Fee Related CN205744347U (en) | 2016-06-30 | 2016-06-30 | A kind of ground vacuum preloading experiment air extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306693A (en) * | 2018-08-15 | 2019-02-05 | 绿山高科建设科技有限公司 | One kind being based on vacuum method reinforcing soft foundation vacuum-pumping equipment |
-
2016
- 2016-06-30 CN CN201620678483.5U patent/CN205744347U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306693A (en) * | 2018-08-15 | 2019-02-05 | 绿山高科建设科技有限公司 | One kind being based on vacuum method reinforcing soft foundation vacuum-pumping equipment |
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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: 20161130 Termination date: 20170630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |