CN212391336U

CN212391336U - Concrete elasticity modulus detection device

Info

Publication number: CN212391336U
Application number: CN202020703922.XU
Authority: CN
Inventors: 马素龙; 范聪聪; 左东亮
Original assignee: Jiangsu Xufang Engineering Testing Co ltd
Current assignee: Jiangsu Xufang Engineering Testing Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-22
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a concrete elasticity modulus detection device, belonging to the technical field of concrete detection, comprising an upper ring component, a lower ring component, a dial indicator bracket component, a dial indicator and a fastening bolt, the upper ring assembly comprises a circular upper ring main body and a horizontal device embedded in the upper surface of the upper ring main body, the dial indicator bracket assembly comprises a bracket main body, a bracket screw rod and a dial indicator fixing screw rod, the dial indicator fixing screw rod is fixed in the dial indicator fixing through hole and penetrates through the dial indicator, so that a bottom needle of the dial indicator is contacted with the lower ring assembly, the lower ring assembly comprises a lower ring main body and two symmetrical measuring blocks fixed on the upper surface of the lower ring main body, 4 fastening screw holes are respectively arranged on the lower ring main body and the upper ring main body, and the axis of 4 tight set screw holes intersects the back, and the angle that two adjacent axes formed is 90 degrees, all be equipped with the tight set bolt of matching in the tight set screw hole. The concrete elasticity modulus detection device is simple in structure and convenient to use.

Description

Concrete elasticity modulus detection device

Technical Field

The utility model belongs to the technical field of the concrete detects, concretely relates to concrete elasticity modulus detection device.

Background

The concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely molding, curing and hardening. Concrete is mainly divided into two stages and states: plastic state before setting and hardening, namely fresh concrete or concrete mixture; the existing elastic modulus detection device cannot continue the test due to uneven stress caused by loose bolt fixation when the upper ring main body and the lower ring main body are fixed with the test piece.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete elasticity modulus detection device to it is inconvenient to solve tight set bolt operation, the unable firm fixed problem.

In order to achieve the above object, the utility model provides a following technical scheme: a concrete elasticity modulus detection device comprises an upper ring assembly, a lower ring assembly, a dial indicator bracket assembly, a dial indicator and a fastening bolt, wherein the upper ring assembly comprises a circular upper ring main body and a horizontal device embedded in the upper surface of the upper ring main body, the horizontal device is arc-shaped, the upper ring main body is provided with two symmetrical bracket through holes, the bracket through holes are used for fixing the dial indicator bracket assembly, the dial indicator bracket assembly comprises a bracket main body, a bracket screw rod and a dial indicator fixing screw rod, the cross section of the bracket main body is 21274, the shape is that the upper end of the bracket main body is provided with a bracket fixing screw hole matched with the bracket screw rod, the lower end surface of the bracket main body is provided with a dial indicator fixing through hole and a dial indicator fixing screw hole vertically communicated with the dial indicator fixing through hole, the dial indicator fixing screw hole is provided with a matched dial indicator fixing screw rod, and the dial indicator passes through the dial indicator fixing through the, make the end needle and the contact of lower ring subassembly of amesdial, the lower ring subassembly includes the lower ring main part, is fixed in the measuring block of two symmetries of lower ring main part upper surface, all be equipped with 4 tight set screw holes in lower ring main part and the last ring main part, and 4 crossing backs of the axis of tightly setting screw hole, the angle that adjacent two axis formed is 90 degrees, all be equipped with the tight set bolt of matching in the tight set screw hole.

Preferably, the screw caps of the bracket screw and the dial indicator fixing screw are provided with anti-skid grains.

Preferably, one end of the fastening bolt is provided with a handle, the handle is a quincunx handle, and the material of the handle is PF phenolic plastic.

Preferably, the inner diameters of the lower ring body and the upper ring body are the same size.

Preferably, the horizontal device is a metal level bubble, and the shell of the metal level bubble is made of any one of aluminum alloy, copper and stainless steel.

The utility model discloses a technological effect and advantage: the concrete elasticity modulus detection device is simple in structure and convenient to use, on one hand, a handle is arranged at one end of the fastening bolt, the handle is a quincunx handle, operation is convenient during fixing, the quincunx handle is held powerfully, and fixing is more firm and accurate; on the other hand, the horizontal device on the upper surface of the upper ring main body improves the fixing speed.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the upper ring assembly of the present invention;

FIG. 3 is a schematic structural view of the lower ring assembly of the present invention;

fig. 4 is the structural schematic diagram of the micrometer gauge stand assembly of the present invention.

In the figure: 1-upper ring component, 11-upper ring main body, 12-horizontal device, 13-bracket through hole, 2-lower ring component, 21-lower ring main body, 22-measuring block, 3-dial indicator bracket component, 31-bracket main body, 32-bracket screw, 33-dial indicator fixing screw, 4-dial indicator and 5-fastening bolt.

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.

The utility model provides a concrete elastic modulus detection device as shown in the figure, including the ring assembly 1 that goes up, lower ring assembly 2, amesdial bracket component 3, amesdial 4, tight set bolt 5, the ring assembly 1 that goes up includes the ring main part 11 that goes up and level device 12 that imbeds at the upper surface of the ring main part 11, level device 12 is the arc, level device 12 is the metal air level, and the shell material of metal air level is any one in aluminum alloy, copper, stainless steel, durable, and not fragile upper ring main part 11 is equipped with two symmetrical support through-holes 13, support through-hole 13 is used for fixed amesdial bracket component 3, amesdial bracket component 3 includes support main part 31, support screw rod 32, amesdial fixed screw rod 33, the cross section of support main part 31 is the shape of \\ 21274;, and the upper end is equipped with the support fixed screw hole that matches with support screw rod 32, the lower terminal surface of support main part 31 is equipped with amesdial fixed through hole to reach the amesdial fixed screw hole that communicates with each other perpendicularly with amesdial fixed through hole, amesdial fixed screw hole is equipped with the amesdial clamping screw 33 that matches, all be equipped with skid-proof line on support screw 32 and the nut of amesdial clamping screw 33, conveniently twist, pass amesdial 4 in the amesdial fixed through hole of amesdial fixed screw 33, make the end needle of amesdial 4 and lower ring subassembly 2 contact, lower ring subassembly 2 includes lower ring main part 21, is fixed in the measuring block 22 of two symmetries of lower ring main part 21 upper surface, all is equipped with 4 tight set screw holes on lower ring main part 21 and the last ring main part 11, and 4 after the axis that tightly set the screw hole intersects, the angle that adjacent two axes formed is 90 degrees, the internal diameter size of lower ring main part 21 and last ring main part 11 is the same. All be equipped with the tight bolt 5 that matches in the tight screw hole, 5 one end of tight bolt is equipped with the handle, the handle is plum blossom mold handle, holds powerfully, makes fixed more firm accurate, and the material is the pre-buried metal insert of PF phenolic plastics.

The working principle is as follows: the concrete elasticity modulus detection device is characterized in that the device is placed on a flat plane, a set screw 5 is screwed out, a lower ring main body 21 is sleeved on a test piece and aligned with a marked positioning point in the test piece, the set screw 5 is screwed down by force, an upper ring main body 11 is sleeved on the test piece and aligned with the marked positioning point in the test piece, meanwhile, the upper ring main body 11 is in a horizontal state through a horizontal device 12, the set screw 5 is screwed down by force, a bracket fixing screw hole of a bracket main body 31 is aligned with a bracket through hole, the bracket screw 32 is used for fixing the bracket fixing screw, a bottom needle of a dial indicator 4 passes through a dial indicator fixing through hole, the bottom needle of the dial indicator 4 is contacted with a measuring block 22 and is screwed down by a dial indicator fixing screw 33 for fixing the bracket, the test piece and the device are placed on a lower pressing plate of a pressure testing machine, the center of the test piece is aligned with the center of the pressing plate of the pressure, and starting the press machine to enable the upper surface and the lower surface of the test piece to be subjected to rated external load, so that the concrete to be tested is deformed, the deformation is displayed on the dial indicator 4, and the operator calculates the elastic modulus of the concrete to be tested by using a formula according to the reading of the dial indicator 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a concrete elasticity modulus detection device which characterized in that: the device comprises an upper ring component (1), a lower ring component (2), a dial indicator bracket component (3), a dial indicator (4) and a fastening bolt (5), wherein the upper ring component (1) comprises a circular ring-shaped upper ring main body (11) and a horizontal device (12) embedded in the upper surface of the upper ring main body (11), the horizontal device (12) is arc-shaped, the upper ring main body (11) is provided with two symmetrical bracket through holes (13), the bracket through holes (13) are used for fixing the dial indicator bracket component (3), the dial indicator bracket component (3) comprises a bracket main body (31), a bracket screw rod (32) and a dial indicator fixing screw rod (33), the cross section of the bracket main body (31) is in a shape of '21274', the upper end of the bracket main body is provided with a bracket fixing screw hole matched with the bracket screw rod (32), the lower end surface of the bracket main body (31) is provided with a dial indicator fixing through hole and a dial indicator fixing, the amesdial fixed screw hole is equipped with amesdial clamping screw (33) of matching, pass amesdial (4) in amesdial fixed screw (33) fixed amesdial fixed through hole, make the end needle and the contact of lower ring subassembly (2) of amesdial (4), lower ring subassembly (2) are including lower ring main part (21), are fixed in measuring block (22) of two symmetries of lower ring main part (21) upper surface, all be equipped with 4 tight set screw holes on lower ring main part (21) and the last ring main part (11), and 4 crossing backs of axis of tightly setting screw hole, the angle that adjacent two axes formed is 90 degrees, tightly set all be equipped with the tight set bolt (5) of matching in the screw hole.

2. The apparatus for detecting the modulus of elasticity of concrete according to claim 1, wherein: and anti-skid grains are arranged on the screw caps of the bracket screw rod (32) and the dial indicator fixing screw rod (33).

3. The apparatus for detecting the modulus of elasticity of concrete according to claim 1, wherein: and one end of the fastening bolt (5) is provided with a handle which is a quincunx handle and is made of PF phenolic plastic.

4. The apparatus for detecting the modulus of elasticity of concrete according to claim 1, wherein: the inner diameters of the lower ring main body (21) and the upper ring main body (11) are the same.

5. The apparatus for detecting the modulus of elasticity of concrete according to claim 1, wherein: the leveling device (12) is a metal leveling bubble, and the shell of the metal leveling bubble is made of any one of aluminum alloy, copper and stainless steel.