CN210376076U

CN210376076U - Permeation induction device

Info

Publication number: CN210376076U
Application number: CN202020307625.3U
Authority: CN
Inventors: 杨宝森; 程磊; 朱林
Original assignee: Nanjing Yanhua Intelligent Technology Co ltd
Current assignee: Nanjing Yanhua Intelligent Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-04-21
Anticipated expiration: 2030-03-13

Abstract

The utility model provides a permeation induction device, including single electrode, electrode spring piece and electrode response piece. The electrode induction sheet comprises a first induction sheet and a second induction sheet which are distributed in a staggered mode. The first induction sheet is connected with the single electrode, and the second induction sheet is connected with the electrode spring piece. When water seepage occurs, water drops lead to conduction between the two groups of electrode induction sheets, so that a passage among the single electrode, the electrode induction sheets and the electrode spring pieces is formed, the single electrode sends out a conduction signal, and the system can judge that the water seepage occurs on the test piece.

Description

Permeation induction device

Technical Field

The utility model relates to a concrete impermeability test technical field especially relates to a infiltration induction system among concrete impermeability test device.

Background

The impermeability of concrete evaluates the important index of concrete quality, and various projects require the concrete to have good impermeability, such as: hydraulic engineering, port engineering, road and bridge engineering, underground structures and the like. Therefore, when each engineering quality monitoring station detects the quality of concrete, the permeability is a necessary inspection index.

Impermeability refers to the ability of the materials used in the construction to resist the penetration of water and other liquid media under pressure. The automatic anti-seepage detection device in the prior art exists, but the detection is carried out on the top surface of a test piece in a point contact mode, when an actual seepage point is far away from a detection point, seepage cannot be timely and effectively detected, and the device has unreliability and delay. Therefore, it is urgently needed to design a permeation sensing device which can change a water seepage point contact type into a surface contact type and improve the reliability of a permeation resistance test.

Disclosure of Invention

The utility model aims at designing a infiltration induction system, can send signal as early as possible after the infiltration takes place.

The utility model discloses a permeation sensing device, including single electrode, electrode spring leaf and electrode response piece. The electrode induction sheet comprises a first induction sheet and a second induction sheet which are mutually insulated and distributed in a staggered way. The first and second induction sheets can be spirally and alternatively distributed, and also can be in a tooth-shaped and alternatively distributed. The first induction sheet is connected with the single electrode, and the second induction sheet is connected with the electrode spring piece. The cross section of the electrode induction sheet is circular or quadrilateral, and is preferably square.

When the seepage occurs, because the first induction sheet is adjacent to the second induction sheet, the water drops can lead to the conduction between the two groups of electrode induction sheets, thereby forming a passage among the single electrode, the first induction sheet, the second induction sheet and the electrode spring sheet, further sending a conduction signal, and judging that the seepage occurs to the test piece by the system.

Drawings

Fig. 1 is a schematic structural view of a concrete impermeability test device.

Fig. 2 is a sectional view of the concrete impermeability test apparatus shown in fig. 1.

Fig. 3 is a structural diagram of an infiltration induction apparatus according to the present invention.

Fig. 4 is a structural view of another permeation sensing apparatus according to the present invention.

Description of the reference numerals

The device comprises a sealing cylinder 10, a cylinder body 11, a rubber sealing sleeve 12, a lower pressing ring 13, a fixing bolt 14, a sealing boss 111, a sealing base 20, a boss 21, a water injection through hole 22, a pressurizing electromagnetic valve 23, a fixing seat 30, an electrode induction sheet 100, a first induction sheet 101, a single electrode 102, a second induction sheet 103, an electrode spring sheet 104 and a concrete test piece 50.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only. The scope of the present application is not limited to the embodiments, and the claims are to be read in this light. For purposes of clarity and understanding by one of ordinary skill in the art, the components shown are not necessarily drawn to scale relative to each other, some dimensions may be exaggerated relative to other dimensions, and irrelevant or unimportant details may not be fully drawn for clarity of illustration.

The utility model discloses a permeation sensing device, including single electrode, electrode spring leaf and electrode response piece. The electrode induction sheet comprises a first induction sheet and a second induction sheet which are mutually insulated and distributed in a staggered way. The first and second induction sheets can be spirally and alternatively distributed, and also can be in a tooth-shaped and alternatively distributed. The first induction sheet is connected with the single electrode, and the second induction sheet is connected with the electrode spring piece. The interface of the electrode induction sheet is circular or quadrilateral, preferably square.

When the seepage occurs, because the first induction sheet is adjacent to the second induction sheet, the water drops seep out to lead to the conduction between the two groups of electrode induction sheets, thereby forming a passage among the single electrode, the first induction sheet, the second induction sheet and the electrode spring piece, further sending a conduction signal, and judging the seepage of the test piece by the system.

As shown in fig. 1 to 4, the permeation sensing apparatus according to the embodiment of the present invention is illustrated.

The utility model discloses an among the non-limiting embodiment, concrete impermeability test detection device includes that infiltration induction system, test piece seal a section of thick bamboo 10, sealing base 20 and infiltration determine module. The test piece sealing cylinder 10 comprises a cylinder body 11, a rubber sealing sleeve 12 and a lower pressing ring 13; as shown in fig. 1 and 2, the cylinder 11 is a cylindrical hollow cylindrical mechanism, and a test piece placing position is arranged inside the cylinder; the inner surface of the cylinder body 11 is contacted with the rubber sealing sleeve 12, specifically, the rubber sealing sleeve 12 is distributed along the inner ring of the cylinder body 11, the upper end of the cylinder body 11 protrudes inwards to form a self-sealing boss 111, and the rubber sealing sleeve 12 is limited in the area below the sealing boss 111; the lower pressing ring 13 is positioned below the cylinder 11 and connected with the cylinder 11 through a fixing bolt 14. The lower pressing ring 13 is internally connected with a sealing base 20, and the sealing base 20 comprises a boss 21 embedded in the lower pressing ring 13, a water injection through hole 22 penetrating through the lower pressing ring 13 to enable water flow to enter the detection device, and a pressurizing electromagnetic valve 23 connected with the water injection through hole 22. The permeation sensing apparatus mounted on the top cover plate of the cartridge body is shown in fig. 3 and 4, and comprises a single electrode 102, an electrode spring sheet 104 and an electrode sensing sheet 100. Wherein the single electrode 102 is fixed inside the fixing seat 30 connected with the barrel 11, and the bottom of the single electrode 102 is connected with the electrode induction sheet 100; the electrode spring plate 104 is a plate structure, and is integrally in a hook shape, the top of the electrode spring plate is connected with the top cover plate of the cylinder 11, and the bottom of the electrode spring plate is connected with the electrode sensing plate 100. The single electrode 102 and the electrode spring piece 104 are fixedly connected with the electrode sensing piece 100 by welding or the like.

The electrode sensing tabs 100 may be two groups of electrode sensing tabs as shown in fig. 3 and 4: the first sensing piece 101 and the second sensing piece 103 are arranged in a staggered manner, are not in contact with each other, and cover the top end face of the concrete sample 50. The first induction sheet 101 of the two groups of induction sheets is contacted with the single electrode 102, and the second induction sheet 103 is contacted with the electrode spring piece 104.

The first and second sensing pieces are insulated from each other when water seepage does not occur. The electrode sensing piece can be conductive, and is preferably made of anticorrosive alloy materials such as stainless steel.

The first and second sensing pieces can also be formed by wrapping a conductive metal sheet on the outer surface of the insulating material.

The cross section of the electrode sensing piece 100 is circular or quadrilateral, including rectangle, square and trapezoid. Preferably square.

When the water seepage phenomenon occurs, namely water penetrates through the concrete sample 50 from bottom to top to form water drops on the top of the concrete sample, the distance between the first electrode induction sheet and the second electrode induction sheet is small. The water continuously permeates from bottom to top to cause water drops to continuously grow, the water drops can be contacted with the two electrode induction sheets at the same time very quickly, so that the two groups of electrode induction sheets are conducted, a passage among the single electrode 102, the electrode induction sheets 101, the electrode induction sheets 103 and the electrode spring pieces 104 is formed, then the single electrode sends a conduction signal, and the system can judge that the test piece is infiltrated with water.

Claims

1. An infiltration induction device is characterized by comprising a single electrode, an electrode spring piece and an electrode induction piece.

2. The permeation sensing apparatus of claim 1, wherein the electrode sensing sheet comprises a first sensing sheet and a second sensing sheet.

3. The permeation sensing apparatus of claim 2, wherein the first sensing piece is insulated from the adjacent second sensing piece.

4. The permeation sensing apparatus of claim 2, wherein the first and second sensing sheets are staggered.

5. The permeation sensing apparatus of claim 4, wherein the first and second sensing sheets are spirally staggered.

6. The permeation sensing apparatus of claim 4, wherein the first and second sensing tabs are staggered in tooth form.

7. The permeation sensing apparatus according to claim 2, wherein the first sensing piece is connected to a single electrode, and the second sensing piece is connected to the electrode spring piece.

8. The permeation sensing apparatus according to claim 2, wherein the electrode sensing piece has a circular or quadrangular cross-section.

9. The permeation sensing apparatus of claim 7, wherein the electrode sensing piece has a square cross-section.