CN213749334U

CN213749334U - Hydrostatic pressure resistant sample device for nano bentonite

Info

Publication number: CN213749334U
Application number: CN202022917728.4U
Authority: CN
Inventors: 臧祥力; 穆志伟
Original assignee: Hebei Tianchen Instrument Equipment Co ltd
Current assignee: Hebei Tianchen Instrument Equipment Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-20
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to a sodium bentonite hydrostatic pressure resistance test field, in particular to a nano bentonite hydrostatic pressure resistance sample device, which comprises a base, a lower barrel, a middle barrel, an upper cover, a bracket and a pressure rod, wherein the lower barrel is arranged at the top end of the base, a first layer of permeable stone is arranged in the base, a first layer of quartz sand is arranged on the first layer of permeable stone, the middle barrel is arranged in the lower barrel in a sliding way, a sealing rubber ring is arranged between the middle barrel and the lower barrel, the bottom end of the upper cover is supported against the top end of the middle barrel, a second layer of quartz sand is arranged in the middle barrel, a second layer of permeable stone is arranged on the second layer of quartz sand, the bracket comprises a stand column and a cross beam, and the pressure rod comprises a threaded part and a pressure part, the utility model can ensure the whole sealing performance of the device, avoid the problem of water overflow around the test piece, in the use process, the steps are simple, the operation is convenient, and the whole structure is more stable, the pressurizing rod has a better compacting effect on the pressurization of the test piece.

Description

Hydrostatic pressure resistant sample device for nano bentonite

Technical Field

The utility model relates to a resistant hydrostatic test technical field of sodium bentonite especially relates to and receives resistant hydrostatic test sample device of base bentonite.

Background

The bentonite waterproof blanket is a special anti-seepage geosynthetic material used for artificial lake waterscape, garbage landfill, underground garage, roof garden, pool, oil depot and chemical storage yard, and is characterized by that the high-expansibility sodium bentonite is filled between the special composite geotextile and nonwoven fabric, and the bentonite anti-seepage pad made up by using needle punching method can form many small fibre spaces, so that the bentonite granules can not flow like one direction, and when it is met with water, a uniform high-density colloidal waterproof layer can be formed in the pad, so that it can effectively prevent water from leaking. The hydrostatic pressure resistance of the sodium bentonite waterproof blanket is measured by pressurizing two sides of the sodium bentonite waterproof blanket, and when the pressure difference reaches a certain value, the waterproof blanket is damaged. And (3) gradually increasing the hydraulic pressure difference on the two sides of the sample, keeping for a certain time, and when water flows out from the water outlet, indicating that the sample is damaged, thus obtaining the hydrostatic pressure resistance value of the sample. The conventional nano bentonite hydrostatic pressure resistant sample device is inconvenient to operate and poor in sealing property.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a hydrostatic pressure resistant sample device for nano bentonite.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the device for testing the hydrostatic pressure resistance of the nano bentonite comprises a base, a lower barrel, a middle barrel, an upper cover, a bracket and a pressurizing rod, the lower barrel is arranged at the top end of the base, a first layer of permeable stone is arranged in the base, a first layer of quartz sand is arranged on the first layer of permeable stone, the middle barrel is arranged in the lower barrel in a sliding way, a sealing rubber ring is arranged between the middle barrel and the lower barrel, the bottom end of the upper cover is propped against the top end of the middle barrel, a second layer of quartz sand is arranged in the middle barrel, a second layer of permeable stone is arranged on the second layer of quartz sand, the bracket comprises an upright post and a cross beam, the upright post is arranged on the lower barrel, the cross beam is arranged at the top end of the upright post, the pressurizing rod comprises a threaded part and a pressurizing part, the threaded portion is connected with the cross beam through threads, and the bottom end of the pressurizing portion is abutted to the top end of the upper cover.

Preferably, the device further comprises a pressurizing device, and one end of the pressurizing device is connected with the base.

Preferably, the lower barrel is fixed on the base through screws.

Preferably, the top end of the pressurization pole is provided with the rotating part, be provided with anti-skidding line on the rotating part.

The utility model has the advantages that:

the utility model discloses place first layer permeable stone in the base, fill up with first layer quartz sand between sample and first layer permeable stone, after the sample is installed, fill up second floor quartz sand in well bucket, place second floor permeable stone at second floor quartz sand upper surface, and compress tightly second floor permeable stone with the upper cover through the compression bar, the sealed rubber ring of cooperation, can guarantee the holistic leakproofness of device, avoid the problem that water spills over around the test piece, in the use, the step is simple, and convenient for operation, on overall structure, it is more stable, on the pressurization to the test piece, the compression bar has the better effect that compresses tightly.

Drawings

Fig. 1 is a perspective view of a hydrostatic pressure resistant sample device of nano bentonite provided by the utility model;

FIG. 2 is a top view of the naloxone hydrostatic pressure resistance specimen apparatus shown in FIG. 1;

fig. 3 is a cross-sectional view taken at a-a in fig. 2.

In the figure: 1 pressurizing rod, 2 cross beams, 3 upright columns, 4 upper covers, 5 middle barrels, 6 lower barrels and 7 bases.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the hydrostatic pressure resistant sample device of nano bentonite comprises a base 7, a lower barrel 6, a middle barrel 5, an upper cover 4, a support and a pressure rod 1, wherein the lower barrel 6 is arranged at the top end of the base 7, a first layer of permeable stone is arranged in the base 7, a first layer of quartz sand is arranged on the first layer of permeable stone, a first layer of permeable pool can prevent the first layer of quartz sand from leaking out, the middle barrel 5 is arranged in the lower barrel 6 in a sliding manner, a sealing rubber ring is arranged between the middle barrel 5 and the lower barrel 6 and can prevent water from overflowing in the test process, the bottom end of the upper cover 4 is abutted against the top end of the middle barrel 5, a second layer of quartz sand is arranged in the middle barrel 5, a second layer of permeable stone is arranged on the second layer of quartz sand, the second layer of permeable pool can press the second layer of quartz sand, the support comprises a stand column 3 and a cross beam 2, the utility model discloses a test piece of well bucket 5, including upper cover 4, stand 3, crossbeam 2, pressure bar 1, top portion, pressure portion, upper cover 4, upright post 3 is installed on bucket 6 down, crossbeam 2 sets up the top of stand 3, pressure bar 1 includes screw thread portion and pressure portion, screw thread portion with crossbeam 2 passes through threaded connection, the bottom of pressure portion with the top of upper cover 4 supports and holds, and is specific, the bottom of pressure portion sets up in the middle part of the top of upper cover 4, compresses tightly the test piece between bucket 5 and the bucket 6 down through upper cover 4.

Furthermore, the water-saving water dispenser further comprises a pressurizing device, one end of the pressurizing device is connected with the base 7, one end of the pressurizing device is connected with water, and the pressurizing device can press the water into the base 7.

Further, the lower barrel 6 is fixed on the base 7 through screws.

Further, the top of pressurization pole 1 is provided with the rotating part, be provided with anti-skidding line on the rotating part, anti-skidding line conveniently rotates the rotating part.

In this embodiment, during the test, at first with bucket 6 and base 7 separation, place first layer permeable stone in base 7, then pass through the screw fixation with bucket 6 on base 7, guarantee that the junction between bucket 6 and the base 7 does not have water to spill over. The prepared sample is placed in the lower barrel 6, and the space between the sample and the first layer of permeable stone is filled with a first layer of quartz sand. Then, the middle barrel 5 is pressed into the lower barrel 6, the lower edge of the middle barrel 5 is pressed tightly on the sample, and the situation that water seeps out from the edge of the sample in the test process is avoided. After the sample is installed, a second layer of quartz sand is filled in the middle barrel 5, a second layer of permeable stone is placed on the upper surface of the second layer of quartz sand, and the upper cover 4 is tightly pressed on the second layer of permeable stone through the pressurizing rod 1. Pressing water in by a pressurizing device, removing all air in the water, closing a pressurizing valve, keeping for 30min to fully expand the sample, and then opening the pressurizing valve every 1h to increase the water pressure of 0.1MPa until the specified pressure is reached. And if no water flows out of the water outlet in the test process, judging that the hydrostatic pressure resistance of the test piece is qualified, otherwise, judging that the hydrostatic pressure resistance of the test piece is unqualified.

The utility model discloses place first layer permeable stone in base 7, fill up with first layer quartz sand between sample and first layer permeable stone, after the sample is installed, fill up second floor quartz sand in well bucket 5, place second floor permeable stone on second floor quartz sand upper surface, and compress tightly second floor permeable stone with upper cover 4 through pressure bar 1, the sealed rubber ring of cooperation, can guarantee the holistic leakproofness of device, avoid the problem that the test piece has water to spill over around, in the use, the step is simple, and convenient for operation, on overall structure, it is more stable, on the pressurization to the test piece, pressure bar 1 has the better effect that compresses tightly.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Receive resistant hydrostatic pressure sample device of foundation bentonite, its characterized in that, including base (7), lower bucket (6), well bucket (5), upper cover (4), support and pressure bar (1), lower bucket (6) set up the top of base (7), be provided with the first layer permeable stone in base (7), be provided with the first layer quartz sand on the first layer permeable stone, well bucket (5) slide to set up in lower bucket (6), be provided with sealed rubber ring between well bucket (5) and lower bucket (6), the bottom of upper cover (4) supports with the top of well bucket (5), be provided with the second layer quartz sand in well bucket (5), be provided with the second layer permeable stone on the second layer quartz sand, the support includes stand (3) and crossbeam (2), install stand (3) on lower bucket (6), the cross beam (2) is arranged at the top end of the upright post (3), the pressurizing rod (1) comprises a threaded portion and a pressurizing portion, the threaded portion is connected with the cross beam (2) through threads, and the bottom end of the pressurizing portion is abutted to the top end of the upper cover (4).

2. The nalbentonit hydrostatic-pressure-resistant sample device according to claim 1, further comprising a pressurizing device, one end of which is connected to the base (7).

3. The device for hydrostatic-pressure-resistant test specimens of sodium bentonite according to claim 1, characterized in that the lower tub (6) is fixed to the base (7) by screws.

4. The device for testing the hydrostatic pressure resistance of the nano bentonite according to claim 1, wherein a rotating part is arranged at the top end of the pressurizing rod (1), and anti-skid lines are arranged on the rotating part.