CN2505817Y - Gasbag type volume measuring apparatus - Google Patents
Gasbag type volume measuring apparatus Download PDFInfo
- Publication number
- CN2505817Y CN2505817Y CN 01270446 CN01270446U CN2505817Y CN 2505817 Y CN2505817 Y CN 2505817Y CN 01270446 CN01270446 CN 01270446 CN 01270446 U CN01270446 U CN 01270446U CN 2505817 Y CN2505817 Y CN 2505817Y
- Authority
- CN
- China
- Prior art keywords
- gasbag
- piston rod
- utility
- water level
- model
- 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
Abstract
The utility model provides a gasbag type volume measuring apparatus belonging to a geotechnical test instrument. The utility model comprises a handle, an exhaust valve, a hollow piston rod, a cylinder, a piston, a grating and a platen, wherein, the top of the cylinder is provided with a positioning disc, while the bottom of the cylinder is provided with a gasbag; the lower end of the hollow piston rod is communicated with the gasbag, while the upper end of the hollow piston is communicated with the exhaust valve fixed on the handle; the inside of the piston rod is additionally provided with a water level tube and a sacculus connected with the lower end of the water level tube; in addition, the side face of the piston rod is provided with a digital display measuring rule. With lightened weight, the utility model reduces labor intensity of measuring staff and prolongs service life of gasbag body; meanwhile, convenient reading is helpful to avoid personal error; moreover, with reduction in height and size, the utility model is convenient for transportation.
Description
(1) technical field
The utility model relates to a kind of geotechnological instrument, especially relates to a kind of testing tool of measuring the volume of testing pits.
(2) background technology
The inventor obtained the name be called " water-bag type volume determination instrument ", the patent No. is the utility model patent of ZL00234351.7.In use there is following problem in disclosed water-bag type volume determination instrument in this patent document: the medium that 1, transmits pressure is a water, and the instrument overall weight is big; 2, staff reading is shown by scale, the reading inconvenience.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art and a kind of gasbag-type volume determination instrument is provided.It is improved on water-bag type volume determination instrument basis, changes the medium that transmits pressure into air by water, surveys chi and changes digital display type into by scale reading, thereby make testing tool weight saving, convenient reading.
The purpose of this utility model is achieved by the following technical solution.Design a kind of gasbag-type volume determination instrument, it comprises: handle, vent valve, hollow piston bar, cylinder barrel, piston, barrier and platen, it is characterized in that the top of described cylinder barrel is provided with a positioning disk, and its bottom is provided with an air bag; The lower end of described hollow piston bar communicates with air bag, and its upper end communicates with vent valve on being fixed on handle, is provided with water level pipe in the piston rod in addition and is connected in the sacculus of water level pipe lower end, and the side of piston rod is provided with digital display survey chi.
Gasbag-type volume determination instrument of the present utility model has the following advantages compared with prior art:
1, the medium of transmission pressure changes air into by water, and weight saving has reduced tester's working strength, has prolonged the serviceable life of utricule.
2, survey chi and change digital display type into by scale reading, convenient reading can be avoided personal error.
3, being connected by cruciform between handle and the piston rod changes T-shaped into, and height dimension reduces, convenient transportation.
Below in conjunction with drawings and Examples, further specify the utility model.
(4) description of drawings
Accompanying drawing is the structural representation of gasbag-type volume determination instrument.
(5) embodiment
Accompanying drawing illustrates the structure of the gasbag-type volume determination instrument in the use.With reference to accompanying drawing, gasbag-type volume determination instrument of the present utility model comprises: handle 3, vent valve 2, hollow piston bar 4, cylinder barrel 7, piston 10, barrier 11 and platen 12; The top of cylinder barrel 7 is provided with a positioning disk 6, and its bottom is provided with an air bag 15; The lower end of hollow piston bar 4 communicates with air bag 15, and its upper end communicates with vent valve 2 on being fixed on handle 3, is provided with water level pipe 5 in the piston rod 4 in addition and is connected in the sacculus 8 of water level pipe lower end, and the side of piston rod 4 is provided with digital display survey chi 17.Handle 3 is capping, also is handle.Be carved with water level graticule 1 on the water level pipe 5.Fill water 9 in the sacculus 8, be full of pressurized air 16 in the air bag 15.
During operation, with piston 10 pressurizations.Test pits before the excavation, will protect hole ring 13 and place the position of testing pits, instrument places and protects on the hole ring 13 and fixing with ring, open vent valve 2, piston 10 is mentioned cylinder barrel 7 tops, shuts vent valve 2, slowly promote piston 10 downwards, air in the cylinder barrel 7 boosts gradually, and under the superpressure effect, the water 9 in the cylinder barrel 7 in the sacculus 8 enters water level pipe 5 and rises gradually, under continuing, piston 10 pushes away, superpressure continues to increase, and the water column in the water level pipe 5 continues to rise, up to rising to water level graticule 1.Piston 10 stops pushing, treat that water column is stable after, read the initial reading L that digital display is surveyed chi 17
1And record (L
1Can be by the zero setting of zero setting button).Remove instrument, wait to test pits dig after, place annex to protect on the hole ring 13 again the instrument and fixing.Promote piston 10 downwards, rise to former water level graticule height up to water column.After treating that water column is stable, read and write down the termination reading L that digital display is surveyed chi 17
2Instrument shows that the time between the reading is to test pits to dig the cutter time, generally is no more than 10 minutes for twice.Under the atmospheric conditions, 10 minutes temperature difference can be ignored at the scene.When piston 10 promoted, owing to promote slowly, piston 10 was very little with cylinder barrel 7 fricative heats, also can ignore to Temperature Influence in the cylinder barrel 7.According to physics Boyle's law (at a certain temperature, gas volume V and pressure P product are a constant in the closed container), read L
2During reading, the volume V of the compressed air of testing pits
1Volume V with same pressure pressurized air minimizing in the cylinder barrel
2Equate, promptly
V
1＝V
2＝A*(L
2-L
1)
A in the formula-volumetric type meter constant.
Claims (1)
1, a kind of gasbag-type volume determination instrument, it comprises: handle, vent valve, hollow piston bar, cylinder barrel, piston, barrier and platen, it is characterized in that the top of described cylinder barrel is provided with a positioning disk, its bottom is provided with an air bag; The lower end of described hollow piston bar communicates with air bag, and its upper end communicates with vent valve on being fixed on handle, is provided with water level pipe in the piston rod in addition and is connected in the sacculus of water level pipe lower end, and the side of piston rod is provided with digital display survey chi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270446 CN2505817Y (en) | 2001-11-09 | 2001-11-09 | Gasbag type volume measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270446 CN2505817Y (en) | 2001-11-09 | 2001-11-09 | Gasbag type volume measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505817Y true CN2505817Y (en) | 2002-08-14 |
Family
ID=33676065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01270446 Expired - Fee Related CN2505817Y (en) | 2001-11-09 | 2001-11-09 | Gasbag type volume measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505817Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204515A (en) * | 2011-03-11 | 2011-10-05 | 厦门大学 | Method and device for measuring biomass of cultured sponge |
| CN108535363A (en) * | 2018-02-09 | 2018-09-14 | 中国科学院声学研究所 | A kind of sample clamp for the sound absorption test of acoustic impedance pipe |
| CN112180461A (en) * | 2020-09-11 | 2021-01-05 | 山东大学 | Cavity detection device, detection method and liquid-gas storage method |
-
2001
- 2001-11-09 CN CN 01270446 patent/CN2505817Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204515A (en) * | 2011-03-11 | 2011-10-05 | 厦门大学 | Method and device for measuring biomass of cultured sponge |
| CN108535363A (en) * | 2018-02-09 | 2018-09-14 | 中国科学院声学研究所 | A kind of sample clamp for the sound absorption test of acoustic impedance pipe |
| CN112180461A (en) * | 2020-09-11 | 2021-01-05 | 山东大学 | Cavity detection device, detection method and liquid-gas storage method |
| CN112180461B (en) * | 2020-09-11 | 2021-11-23 | 山东大学 | Cavity detection device, detection method and liquid-gas storage method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |