CN212622607U

CN212622607U - Concrete expansion and contraction measuring device

Info

Publication number: CN212622607U
Application number: CN202021520182.2U
Authority: CN
Inventors: 邸晓庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-02-26
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a concrete expansion and contraction measuring device, including measuring the drain pan, measure the axis position department fixedly connected with communicating pipe of drain pan bottom surface, the first transparent survey buret of one end fixedly connected with of communicating pipe, the upper end opening part of measuring the drain pan is provided with first rubber membrane, the inside splendid attire of measuring the drain pan has water, the top of measuring the drain pan is provided with measures the epitheca, measure the transparent survey buret of fixedly connected with second on the upper end surface of epitheca. This concrete expansion shrinkage measuring device can place the concrete of awaiting measuring on first rubber membrane, then covers and measures the epitheca, utilizes the inside air of vacuum pump extraction after that, and then inside concrete can receive the extrusion force of equidirectional, and the shrinkage of this concrete of ability furthest's detection, the inhomogeneous problem of concrete atress when its shrinkage is detected to effectual present equipment of avoiding to and detect the problem that the data precision remains the improvement.

Description

Concrete expansion and contraction measuring device

Technical Field

The utility model relates to a concrete expansion and contraction measures technical field, specifically is a concrete expansion and contraction measuring device.

Background

Concrete is an indispensable building material in modern buildings, the quality of concrete directly determines the quality of the engineering building, and therefore, the concrete needs to be measured before pouring, including measurement of the expansion amount and the contraction amount of the concrete, and a special measuring device is used in the measurement.

When the shrinkage of concrete is measured by the conventional concrete expansion and shrinkage measuring device, the concrete is stressed unevenly when extruded easily, so that the inaccurate measurement value of the concrete shrinkage is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete expansion and contraction measuring device to when solving the shrinkage that provides current concrete expansion and contraction measuring device and measure the concrete among the above-mentioned background art, it is inhomogeneous to appear the atress of concrete when the extrusion that receives easily, consequently leads to the unsafe problem of concrete shrinkage measurement numerical value easily.

In order to achieve the above object, the utility model provides a following technical scheme: a concrete expansion and contraction measuring device comprises a measuring bottom shell, a communicating pipe is fixedly connected at the position of a middle shaft of the outer surface of the bottom end of the measuring bottom shell, a first transparent measuring pipe is fixedly connected at one end of the communicating pipe, a first rubber film is arranged at an upper end opening of the measuring bottom shell, water is contained in the measuring bottom shell, a measuring upper shell is arranged above the measuring bottom shell, a second transparent measuring pipe is fixedly connected on the outer surface of the upper end of the measuring upper shell, a second rubber film is arranged at a lower end opening of the measuring upper shell, a through hole is formed in the outer surface of the second rubber film and is coincided with a port of an exhaust pipe, the other end of the exhaust pipe penetrates through the outer surface of the measuring upper shell and is fixedly connected with one end of an air guide hose, and the other end of the air guide hose is fixedly, the inside splendid attire of measuring the epitheca has water, first transparent survey buret and the transparent buret of second all communicate with each other with the outside air, be provided with the scale on the side surface of first transparent survey buret and the transparent buret of second.

Preferably, the measuring upper shell and the measuring bottom shell are hemispherical, the measuring upper shell is opposite to the measuring bottom shell, and a sealing rubber ring is adhered to the joint of the measuring upper shell and the measuring bottom shell.

Preferably, the side edge of the measuring bottom shell is integrally connected with a lock catch fixing block, the side edge of the measuring upper shell is integrally connected with a lock catch piece, and the lock catch fixing block is inserted into the lock catch piece.

Preferably, an air inlet pipe is fixedly connected to the side face of one end of the air guide hose, and a control valve is fixedly mounted in a pipeline of the air inlet pipe.

Preferably, the outer surface of the measuring bottom shell is integrally connected with three support columns, and the support columns are distributed in a circular manner by taking the central point of the measuring bottom shell as a circular point.

Preferably, the first transparent measurement pipe and the second transparent measurement pipe are both vertically upward.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the concrete expansion and contraction measuring device can place concrete to be measured on a first rubber membrane through the arrangement of a measuring bottom shell, a measuring upper shell, the first rubber membrane, a second rubber membrane, a communicating pipe, a first transparent measuring pipe, a second transparent measuring pipe, an exhaust pipe, an air guide hose and a vacuum pump, then the measuring upper shell is covered, the second rubber membrane is wrapped above the concrete to be measured, then the vacuum pump is utilized to extract the internal air, the internal concrete can be subjected to extrusion forces in different directions, the contraction quantity of the concrete can be detected to the maximum extent, the contraction quantity of the concrete can be accurately calculated by comparing the internal water capacities of the first transparent measuring pipe and the second transparent measuring pipe, simultaneously, after the air pressure inside the concrete is restored, the internal water capacities of the first transparent measuring pipe and the second transparent measuring pipe are compared after standing for a period of time, the expansion amount of the concrete can be calculated, the structure is simple, the operation is convenient and fast, the measured data is accurate, and the problems that the concrete is stressed unevenly when the contraction amount of the concrete is detected by the conventional equipment and the precision of the detected data needs to be improved can be effectively avoided;

2. this concrete expansion and contraction measuring device through the setting of sealing rubber circle, can be when the device measures, and the leakproofness between the effectual assurance measurement drain pan and the measurement epitheca.

Drawings

Fig. 1 is an overall schematic view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is an A-A analysis diagram of the present invention;

fig. 4 is a side view of the present invention.

In the figure: 1. measuring a bottom shell; 2. a support pillar; 3. a communicating pipe; 4. a first transparent measurement tube; 5. measuring the upper shell; 6. a second transparent measurement tube; 7. an exhaust pipe; 8. an air guide hose; 9. an air inlet pipe; 10. a vacuum pump; 11. sealing the rubber ring; 12. a lock catch fixing block; 13. a fastener; 14. a first rubber film; 15. a second rubber film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a concrete expansion and contraction measuring device comprises a measuring bottom shell 1, a communicating pipe 3 is fixedly connected at the position of a middle shaft of the outer surface of the bottom end of the measuring bottom shell 1, one end of the communicating pipe 3 is fixedly connected with a first transparent measuring pipe 4, a first rubber film 14 is arranged at an opening at the upper end of the measuring bottom shell 1, water is contained in the measuring bottom shell 1, a measuring upper shell 5 is arranged above the measuring bottom shell 1, a second transparent measuring pipe 6 is fixedly connected on the outer surface of the upper end of the measuring upper shell 5, a second rubber film 15 is arranged at an opening at the lower end of the measuring upper shell 5, a through hole is arranged on the outer surface of the second rubber film 15 and coincides with a port of an exhaust pipe 7, the other end of the exhaust pipe 7 penetrates through the outer surface of the measuring upper shell 5 and is fixedly connected with one end of an air guide hose 8, the, the measuring upper shell 5 is filled with water, the first transparent measuring tube 4 and the second transparent measuring tube 6 are both communicated with the outside air, the side surfaces of the first transparent measuring tube 4 and the second transparent measuring tube 6 are provided with scales, so that the concrete to be measured can be placed on the first rubber film 14, then the measuring upper shell 5 is covered, the second rubber film 15 is wrapped above the concrete to be measured, then the vacuum pump 10 is utilized to extract the inside air, the inside concrete can be subjected to extrusion forces in different directions, the shrinkage of the concrete can be detected to the maximum extent, the shrinkage of the concrete can be accurately calculated by comparing the capacities of the water inside the first transparent measuring tube 4 and the second transparent measuring tube 6, simultaneously, after the air pressure inside the concrete is recovered, the capacities of the water inside the first transparent measuring tube 4 and the second transparent measuring tube 6 are compared after standing for a period of time, thereby can calculate the swelling capacity of this concrete, simple structure, the simple operation, measured data is accurate, can effectually avoid present equipment concrete atress inhomogeneous problem when detecting its shrinkage to and detect the problem that the data precision remains to improve.

Further, measure upper shell 5 and measure drain pan 1 and all be hemispherical, measure upper shell 5 and measure the drain pan 1 and put relatively, measure upper shell 5 and measure the butt joint department of drain pan 1 and all paste and have a sealing rubber circle 11, this can be when the device measures, the effectual leakproofness of guaranteeing between drain pan 1 and the measurement upper shell 5 of measuring.

Further, the side of measuring drain pan 1 is integrative to be connected with hasp fixed block 12, and the side of measuring epitheca 5 is integrative to be connected with hasp piece 13, and hasp fixed block 12 is inserted in the inside of hasp piece 13, and this can utilize hasp fixed block 12 and hasp piece 13 portable to measuring drain pan 1 and measuring epitheca 5 and dismantle the installation.

Further, fixedly connected with intake pipe 9 on the lateral surface of one end side of air guide hose 8, fixed mounting has control flap in the pipeline of intake pipe 9, and this can resume to measure epitheca 5 and measure the inside atmospheric pressure of drain pan 1 through opening the valve in intake pipe 9, and the simple operation is convenient for it measures the inflation volume of concrete.

Further, measure integrative being connected with support column 2 on the surface of drain pan 1, support column 2 is provided with threely, and uses the central point of measuring drain pan 1 to be the circular distribution of dot, and this can provide the holding power for whole device, has guaranteed to go on steadily among the measurement process.

Further, first transparent buret of surveying 4 and the transparent buret of second 6 of surveying are all vertical up, and this lift volume of the inside water of the transparent buret of surveying 4 of observation and the transparent buret of second 6 of surveying can be convenient for.

The working principle is as follows: firstly, the device is placed at a specified position, then concrete to be measured is placed on a first rubber film 14, then a measuring upper shell 5 is jointed with a measuring bottom shell 1, at the moment, a second rubber film 15 covers the concrete to be measured, then the measuring bottom shell 1 and the measuring upper shell 5 are fixedly connected through a lock catch fixing block 12 and a lock catch piece 13, scales of water inside a first transparent measuring pipe 4 and a second transparent measuring pipe 6 are recorded at the moment after the installation is finished, then a power supply is switched on, a vacuum pump 10 is started, under the action of the vacuum pump 10 and the air guide of an exhaust pipe 7 and an air guide hose 8, the first rubber film 14 and the second rubber film 15 are tightly wrapped on the outer surface of the concrete, meanwhile, under the action of external atmospheric pressure, the concrete is subjected to extrusion forces in different directions, at the moment, the scales of the water inside the first transparent measuring pipe 4 and the second transparent measuring pipe 6 are lowered, the sum of the calculated descending amount is the shrinkage of the concrete, then the vacuum pump 10 is closed, the control valve on the air inlet pipe 9 is opened, the outside air enters between the first rubber membrane 14 and the second rubber membrane 15, the internal air pressure is recovered, after the concrete is stood for a period of time, the concrete expansion is finished, and at the moment, the expansion amount of the concrete is calculated through the scales of the water inside the first transparent measuring pipe 4 and the second transparent measuring pipe 6.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a concrete expansion and contraction measuring device, is including measuring drain pan (1), its characterized in that: the middle shaft position of the outer surface of the bottom end of the measuring bottom shell (1) is fixedly connected with a communicating pipe (3), one end of the communicating pipe (3) is fixedly connected with a first transparent measuring pipe (4), an upper end opening of the measuring bottom shell (1) is provided with a first rubber film (14), the measuring bottom shell (1) is filled with water, a measuring upper shell (5) is arranged above the measuring bottom shell (1), a second transparent measuring pipe (6) is fixedly connected to the outer surface of the upper end of the measuring upper shell (5), a second rubber film (15) is arranged at the lower end opening of the measuring upper shell (5), a through hole is formed in the outer surface of the second rubber film (15) and coincides with a port of an exhaust pipe (7), the other end of the exhaust pipe (7) penetrates through the outer surface of the measuring upper shell (5) and is fixedly connected with one end of an air guide hose (8), the other end fixed connection of air guide hose (8) is at the air inlet end of vacuum pump (10), the inside splendid attire of measuring epitheca (5) is equipped with water, first transparent survey buret (4) and the transparent survey buret of second (6) all communicate with each other with the outside air, be provided with the scale on the side surface of first transparent survey buret (4) and the transparent survey buret of second (6).

2. A concrete expansion and contraction measuring device according to claim 1, wherein: the measuring upper shell (5) and the measuring bottom shell (1) are hemispherical, the measuring upper shell (5) and the measuring bottom shell (1) are arranged oppositely, and a sealing rubber ring (11) is adhered to the butt joint of the measuring upper shell (5) and the measuring bottom shell (1).

3. A concrete expansion and contraction measuring device according to claim 1, wherein: the side of measuring drain pan (1) an organic whole is connected with hasp fixed block (12), the side an organic whole of measuring epitheca (5) is connected with hasp piece (13), hasp fixed block (12) are inserted in the inside of hasp piece (13).

4. A concrete expansion and contraction measuring device according to claim 1, wherein: fixedly connected with intake pipe (9) on the lateral surface of one end of air guide hose (8), fixed mounting has control valve in the pipeline of intake pipe (9).

5. A concrete expansion and contraction measuring device according to claim 1, wherein: the measuring device is characterized in that the outer surface of the measuring bottom shell (1) is integrally connected with three supporting columns (2), and the central points of the measuring bottom shell (1) are distributed in a circular mode with round points.

6. A concrete expansion and contraction measuring device according to claim 1, wherein: the first transparent measuring pipe (4) and the second transparent measuring pipe (6) are both vertically upward.