CN215866172U - Triaxial experimental apparatus - Google Patents
Triaxial experimental apparatus Download PDFInfo
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- CN215866172U CN215866172U CN202120979870.3U CN202120979870U CN215866172U CN 215866172 U CN215866172 U CN 215866172U CN 202120979870 U CN202120979870 U CN 202120979870U CN 215866172 U CN215866172 U CN 215866172U
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- pressure chamber
- air pump
- experimental apparatus
- pressure
- triaxial experimental
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Abstract
The utility model discloses a triaxial experimental device, which comprises a pressure chamber and an air pump, wherein the pressure chamber is used for mounting a sample, the top of the pressure chamber is provided with a vent hole, the vent hole is provided with a vent valve, and the bottom of the pressure chamber is provided with a liquid through port; the output end of the air pump is connected with the vent hole. The air pump is used for conveying air to the pressure chamber or pumping air to change the air pressure in the pressure chamber, and the liquid discharging speed or the liquid feeding speed of the pressure chamber is improved under the action of pressure difference, so that the test efficiency is improved, the time and labor cost are reduced, and the scientific research efficiency is improved.
Description
Technical Field
The utility model relates to a triaxial experimental device in the technical field of triaxial tests.
Background
The triaxial test is one of the most common test methods in laboratory soil tests, and the mechanical properties of a test soil sample can be obtained through the triaxial test, so that strength design indexes and references are provided for an actual soil body in engineering. After the triaxial experiment, need the water in the evacuation pressure chamber, prior art is usually through opening top cap valve and drainage valve UNICOM for water in the pressure chamber flows out naturally under the effect of gravitational potential energy. Since only gravitational potential energy is relied on, the drainage rate changes along with the advance of the drainage process, the water level gradually drops, and the drainage rate is also slowed down. Generally speaking, through the discharge of water self gravitational potential energy, take the big triaxial of GDS company's output as an example, the required time generally needs about 2 hours, and is great to the experimental time influence, and can not carry out other operations such as unloading in the drainage process, is unfavorable for improving experimental efficiency, seriously drags slow scientific research progress.
SUMMERY OF THE UTILITY MODEL
The utility model aims to at least solve one of the technical problems in the prior art and provides a triaxial experimental device for accelerating the liquid inlet and outlet efficiency of a pressure chamber.
According to an embodiment of the utility model, a triaxial experimental device is provided, which comprises a pressure chamber, wherein the pressure chamber is used for installing a sample, the top of the pressure chamber is provided with a vent hole, the vent hole is provided with a vent valve, and the bottom of the pressure chamber is provided with a liquid through port; and the output end of the air pump is connected with the vent hole.
According to the embodiment of the utility model, further, the triaxial experimental apparatus further comprises an alarm module, the alarm module comprises a pressure sensor and an alarm indicator lamp, the pressure sensor is arranged in the pressure chamber, and the pressure sensor is electrically connected with the alarm indicator lamp.
According to the embodiment of the utility model, further, the bottom pad of the air pump is provided with an elastic base.
According to the embodiment of the utility model, further, an adjusting knob is arranged on the air pump, and the adjusting knob is used for controlling the air flow rate at the output end of the air pump.
According to the embodiment of the utility model, further, the air pump is communicated with the pressure chamber through a delivery pipe, one end of the delivery pipe is connected to the output end of the air pump through a bolt in a threaded manner, and a through hole is formed in the bolt.
According to the embodiment of the utility model, the head of the bolt is provided with a connecting pipe communicated with the through hole, the outer side of the connecting pipe is provided with a frosting layer, and the conveying pipe is sleeved on the outer side of the connecting pipe.
According to the embodiment of the utility model, further, a handle is arranged on the air pump.
The utility model has the beneficial effects that: the air pump is used for conveying air to the pressure chamber or pumping air to change the air pressure in the pressure chamber, and the liquid discharging speed or the liquid feeding speed of the pressure chamber is improved under the action of pressure difference, so that the test efficiency is improved, the time and labor cost are reduced, and the scientific research efficiency is improved.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the utility model, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic diagram of a connection of an embodiment of the present invention;
fig. 2 is a front view of the bolt of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the triaxial experimental apparatus in the embodiment of the present invention includes a pressure chamber 10 and an air pump 20, the pressure chamber 10 is used for installing a sample, a vent hole 11 is formed in the top of the pressure chamber 10, a liquid through port 12 is formed in the bottom of the pressure chamber 10, an output end of the air pump 20 is communicated with the vent hole 11, the air pump 20 changes the pressure in the pressure chamber 10 by pumping air or delivering air, and the internal pressure of the pressure chamber 10 is controlled to improve the liquid intake and discharge rate of the pressure chamber 10, so as to save the experimental time. When liquid is injected into the pressure chamber 10, the output end of the air pump 20 extracts air, the internal pressure of the pressure chamber 10 is reduced and is lower than the atmospheric pressure, and liquid can rapidly enter the pressure chamber 10 under the action of differential pressure; similarly, when the liquid in the pressure chamber 10 is to be discharged, the output end of the air pump 20 delivers air, the internal pressure of the pressure chamber 10 rises and is higher than the atmospheric pressure, and the liquid can be rapidly discharged out of the pressure chamber 10 from the liquid through port 12 under the action of the pressure difference. Optionally, a vent valve is disposed on the vent hole 11, and whether the air pump 20 is communicated with the pressure chamber 10 or not can be controlled by adjusting the on/off of the vent valve.
Further, triaxial experimental apparatus still includes alarm module, and alarm module includes pressure sensor and alarm indicator, and pressure sensor sets up in pressure chamber 10, and pressure sensor and alarm indicator are connected. When the pressure in the pressure chamber 10 is too high or the negative pressure is too large, the pressure sensor can be triggered, the pressure sensor outputs an electric signal to the alarm indicator lamp 24, and the alarm indicator lamp 24 is lighted to remind the experimenter. An emergency brake button 26 can be arranged on the air pump 20, and when the emergency brake button 26 is pressed, air suction or air transmission can be stopped immediately, so that the test safety is improved.
In some embodiments, the bottom surface of the air pump 20 is padded with a resilient base 22, optionally the resilient base 22 is a rubber member. Since the elastic base 22 is cushioned on the bottom surface of the air pump 20, it is possible to reduce noise and vibration as much as possible, thereby reducing the noise level in the laboratory and ensuring the precision of the test. Be equipped with handle 23 on the air pump 20, handle 23 adopts the PVC material to make, has insulating skid-proof advantage, and the setting of handle 23 is convenient for the experimenter to remove air pump 20. In addition, correspondingly, when the air pump 20 is moved and replaced, because the bottom surface of the air pump 20 is provided with the elastic base 22, the impact and vibration to the air pump 20 during the replacement can be reduced, and the air pump 20 can be effectively protected.
In some embodiments, the air pump 20 is provided with an adjusting knob 21, and the adjusting knob 21 is used for controlling the flow rate of the air flow at the output end of the air pump 20. The experimenter can rotate the adjusting knob 21 to control the flow rate of the air flow according to the requirement, so that the pressure in the pressure chamber 10 is more controllable, and the adverse effect on the stability of the sample and the pressure chamber 10 caused by the overlarge pressure change in the pressure chamber 10 is avoided.
In some embodiments, referring to fig. 2, the air pump 20 communicates with the pressure chamber 10 through a delivery pipe 13, one end of the delivery pipe 13 is screwed to an output end of the air pump 20 through a bolt 25, and the bolt 25 is provided with a through hole. The output end of the air pump 20 is communicated with the pressure chamber 10 through the conveying pipe 13 and the through holes in the bolts 25, and the air pump 20 and the pressure chamber 10 can be quickly detached or connected by detaching or installing the bolts 25, so that the application range is expanded, and the maintenance cost is reduced. Further, be equipped with the connecting pipe 251 with the through-hole intercommunication on the head of bolt 25, the outside of connecting pipe 251 is equipped with the dull polish layer, and conveyer pipe 13 cover is established in the outside of connecting pipe 251, and the dull polish layer has increased the frictional force between connecting pipe 251 and the conveyer pipe 13, has both guaranteed the gas tightness, has also avoided conveyer pipe 13 to loosen from connecting pipe 251 in the use. It will be appreciated that the delivery tube 13 is an interference fit with the connection tube 251 to further increase the friction between the delivery tube 13 and the connection tube 251.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.
Claims (7)
1. A triaxial experimental apparatus, comprising:
the pressure chamber is used for mounting a sample, the top of the pressure chamber is provided with a vent hole, the vent hole is provided with a vent valve, and the bottom of the pressure chamber is provided with a liquid through port;
and the output end of the air pump is connected with the vent hole.
2. The triaxial experimental apparatus of claim 1, wherein: the triaxial experimental apparatus further comprises an alarm module, the alarm module comprises a pressure sensor and an alarm indicating lamp, the pressure sensor is arranged in the pressure chamber, and the pressure sensor is electrically connected with the alarm indicating lamp.
3. The triaxial experimental apparatus of claim 1, wherein: the bottom pad of the air pump is provided with an elastic base.
4. The triaxial experimental apparatus of claim 1, wherein: and the air pump is provided with an adjusting knob, and the adjusting knob is used for controlling the airflow speed at the output end of the air pump.
5. The triaxial experimental apparatus of claim 1, wherein: the air pump pass through the conveyer pipe with the pressure chamber intercommunication, the one end of conveyer pipe is through bolt threaded connection to the output of air pump, be equipped with the through-hole on the bolt.
6. The triaxial experimental apparatus of claim 5, wherein: the bolt is characterized in that a connecting pipe communicated with the through hole is arranged on the head of the bolt, a frosting layer is arranged on the outer side of the connecting pipe, and the conveying pipe is sleeved on the outer side of the connecting pipe.
7. The triaxial experimental apparatus of claim 1, wherein: the air pump is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120979870.3U CN215866172U (en) | 2021-05-08 | 2021-05-08 | Triaxial experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120979870.3U CN215866172U (en) | 2021-05-08 | 2021-05-08 | Triaxial experimental apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215866172U true CN215866172U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120979870.3U Active CN215866172U (en) | 2021-05-08 | 2021-05-08 | Triaxial experimental apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215866172U (en) |
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2021
- 2021-05-08 CN CN202120979870.3U patent/CN215866172U/en active Active
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