CN215115694U

CN215115694U - Concrete strength detection device for building engineering

Info

Publication number: CN215115694U
Application number: CN202121222694.5U
Authority: CN
Inventors: 龙小文
Original assignee: Xinfeng County Construction And Installation Engineering Co ltd
Current assignee: Xinfeng County Construction And Installation Engineering Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-10
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a concrete intensity detection device for building engineering, including the resiliometer, the resiliometer outside is equipped with the mount, on the mount and install the buffering compensation subassembly between the resiliometer, the buffering compensation subassembly includes casing and lower casing, and the resiliometer top offsets with lower casing, and it is internal to go up casing bottom part cover in the inferior valve, goes up to be fixed with first permanent magnet on the shells inner wall, is fixed with the fixed column on the internal intermediate position of inferior valve, is fixed with the second permanent magnet corresponding with first permanent magnet on the fixed column. The utility model provides a concrete strength detection device for building engineering, the structure sets up ingenious and arranges rationally, utilizes magnetic field to produce the resistance, obtains resiliometer inertia rearward movement distance through the electric current of measuring through the resistance pole to calculate the reaction force that the resiliometer was not effectively calculated in inertia rearward movement, get into the resilience computational result through the compensation, thereby avoid the weak influence that removes the testing result production of inertia, improve the result degree of accuracy.

Description

Concrete strength detection device for building engineering

Technical Field

The utility model relates to a construction check out test set technical field specifically is a concrete strength detection device for building engineering.

Background

The basic principle of the rebound tester is that a spring drives a heavy hammer, the heavy hammer impacts an impact rod which is vertically contacted with the surface of concrete with constant kinetic energy, so that the local concrete deforms and absorbs a part of energy, the other part of energy is converted into rebound kinetic energy of the heavy hammer, when the rebound kinetic energy is completely converted into potential energy, the rebound of the heavy hammer reaches the maximum distance, and the maximum rebound distance of the heavy hammer is displayed by the tester in the name of the rebound value (the ratio of the maximum rebound distance to the initial length of the spring).

At present resiliometer requires to hold the resiliometer when using and keeps perpendicular with the concrete, but not only holds the straightness that hangs down and can't effectively guarantee during the in-service use, and hand inertia slightly moves backward when resilience simultaneously, all can cause the influence to final testing result. Therefore, the inventor provides a concrete strength detection device for constructional engineering by integrating various factors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete strength detection device for building engineering to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a concrete strength detection device for constructional engineering comprises a resiliometer, wherein a fixed frame is arranged on the outer side of the resiliometer, a buffer compensation assembly is arranged between the fixed frame and the resiliometer and comprises an upper shell and a lower shell, the top of the resiliometer is abutted against the lower shell, the bottom of the upper shell is partially sleeved in the lower shell, a first permanent magnet is fixed on the inner wall of the upper shell, a fixed column is fixed at the middle position in the lower shell, a second permanent magnet which corresponds to the first permanent magnet and has opposite magnetic poles is fixed on the fixed column, a resistance rod is fixed at the middle position in the upper shell, a through groove corresponding to the resistance rod is preset on the fixed column, electric connection copper sheets connected with the resistance rod are arranged on a through groove opening part and the upper shell, the electric connection copper sheets are electrically connected with a power supply unit and a resistance measurement module, the power supply unit and the resistance measurement module are electrically connected with a resiliometer chip in the resiliometer, and the rebound instrument chip is simultaneously connected with a conversion module.

The contact area between the resiliometer and the concrete is increased by utilizing the fixing frame, so that the contact stability is improved, the resiliometer is ensured to be kept vertical to the concrete as far as possible, when the resiliometer works to generate a rebound force to drive the resiliometer to slightly move backwards in an inertia manner, the lower shell is pushed to move towards the upper shell, the second permanent magnet and the first permanent magnet resist the movement of the lower shell by the principle of like polarity repulsion, a buffer effect is provided, when the lower shell slightly moves, the resistance measuring module can judge the moving distance of the lower shell by measuring the resistance of the electric copper sheet passing through the resistance rod, the resistance can be obtained by combining the magnetic field repulsion strength of the second permanent magnet and the first permanent magnet, the magnitude of an acting force can be judged by combining the known resistance and the measured moving distance, the acting force is the undetected reaction force of the resiliometer, the detected result can be compensated to the measured rebound value by the conversion module, therefore, the influence of inertia weak movement on the detection result is avoided, and the result accuracy is improved.

As a further aspect of the present invention: the mount is including being located the resiliometer left and right sides and with the first bracing piece and the second bracing piece of resiliometer synteny.

As a further aspect of the present invention: the first supporting rod and the second supporting rod are respectively rotatably sleeved on the fixed shaft, an upper fixed plate and a lower fixed plate are respectively fixed at the upper end and the lower end of the fixed shaft, and the upper shell is fixedly connected with the lower fixed plate to provide rigid connection with the resiliometer.

As a further aspect of the present invention: keep away from fixed axle one end on first bracing piece and the second bracing piece and be fixed with the connecting plate, the connecting plate is kept flat mutually with the impact rod of resiliometer, and the convenience is stabilized the resiliometer, and the hand presses down the connecting plate during the use can.

As a further aspect of the present invention: the connecting plate, the first supporting rod and the second supporting rod are combined to form a structure shaped like a Chinese character 'ji', so that the vertical performance of the resiliometer and concrete can be ensured, the structure is simplified, and the carrying is convenient.

Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:

1. the utility model provides a concrete strength detection device for building engineering, the structure sets up ingeniously and arranges rationally, the utility model discloses in utilize the magnetic field to produce the resistance, obtain resiliometer inertia rearward displacement distance through measuring the electric current through the resistance pole to calculate the reaction force that resiliometer has not been effectively calculated in inertia rearward displacement, get into the resilience calculation result through the compensation, thereby avoid inertia weak movement to the influence that the testing result produced, improve the result degree of accuracy;

2. the utility model further fixes the resiliometer through the connecting plate in the shape of a Chinese character 'ji', the first supporting rod and the second supporting rod, which can ensure the vertical of the resiliometer and the concrete, simplify the structure and facilitate carrying;

3. the utility model discloses in this concrete strength detection device testing result degree of accuracy is high, and convenient operation is stable, and the current resiliometer of cost education promotes for a short time, and application prospect is wide.

Drawings

Fig. 1 is a front view of a concrete strength detecting apparatus for construction engineering.

Fig. 2 is a schematic top structure view of a fixing frame in a concrete strength detecting apparatus for construction engineering.

Fig. 3 is a schematic structural diagram of a buffer compensation assembly in a concrete strength detection device for construction engineering.

Fig. 4 is a block diagram of a part of a system of a concrete strength detecting apparatus for construction engineering.

In the figure: 1. a rebound tester; 11. a tapping rod; 12. a rebound tester single chip microcomputer; 13. a resistance measurement module; 14. a conversion module; 15. a power supply unit; 2. a fixed mount; 21. a first support bar; 22. a second support bar; 23. a connecting plate; 24. an upper fixing plate; 25. a lower fixing plate; 26. a fixed shaft; 3. a buffer compensation component; 31. an upper housing; 32. a lower housing; 33. a first permanent magnet; 34. a second permanent magnet; 35. fixing a column; 36. a resistance rod; 37. connecting a copper sheet; 38. a through groove.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, a concrete strength testing apparatus for construction engineering includes a resiliometer 1, a fixing frame 2 and a buffer compensation assembly 3;

a resiliometer chip 12 in the resiliometer 1 is simultaneously in electrical signal connection with a resistance measuring module 13, a conversion module 14 and a power supply unit 15;

the fixing frame 2 comprises a first supporting rod 21, a second supporting rod 22, a connecting plate 23, an upper fixing plate 24, a lower fixing plate 25 and a fixing shaft 26, the first supporting rod 21 and the second supporting rod 22 are respectively rotatably sleeved on the fixing shaft 26, the upper fixing plate 24 and the lower fixing plate 25 are respectively welded and fixed at the upper end and the lower end of the fixing shaft 26, the connecting plate 23 is respectively welded and fixed at one end of the first supporting rod 21 and the second supporting rod 22, which is far away from the fixing shaft 26, the connecting plate 23, the first supporting rod 21 and the second supporting rod 22 are combined to form a structure in a shape like a Chinese character 'ji', the resiliometer 1 is positioned between the first supporting rod 21 and the second supporting rod 22, and the connecting plate 23 is flush with the rebound rod 11 of the resiliometer 1;

the buffer compensation assembly 3 is fixed at the upper bottom position of the lower fixing plate 25, the buffer compensation assembly 3 comprises an upper shell 31, a lower shell 32 and a first permanent magnet 33, the rebound tester comprises a second permanent magnet 34, a fixed column 35, a resistance rod 36 and an electric connection copper sheet 37, wherein the top of the rebound tester 1 is abutted against the lower shell 32, the bottom part of the upper shell 31 is sleeved in the lower shell 32, the first permanent magnet 33 is fixed on the inner wall of the upper shell 31, the second fixed column 35 is integrally connected to the middle position in the lower shell 32, the second permanent magnet 34 is fixed on the fixed column 35 and corresponds to the first permanent magnet 33, the second permanent magnet 34 is opposite to the first permanent magnet 33 in the same polarity, the resistance rod 36 is fixed at the middle position in the upper shell 31, a through groove 38 corresponding to the resistance rod 36 is preset on the fixed column 35, the electric connection copper sheet 37 is installed on the opening part of the through groove 38 and the upper shell 31 and is connected with the resistance rod 36, and the electric connection copper sheet 37 is electrically connected with the power supply unit 15 and the resistance measurement module 13.

The utility model discloses a theory of operation is: when the rebound tester is used, the tapping rod 11 and the connecting plate 23 are both abutted to the surface of concrete, then the connecting plate is pressed by hands to ensure that the resiliometer 1 is perpendicular to the concrete, then the resiliometer 1 is started to perform rebound detection, when the resiliometer 1 detects rebound, the reaction force of the concrete still partially drives the resiliometer 1 to move backwards integrally and cannot be detected, when the resiliometer 1 moves backwards integrally, the lower shell 32 is pressed to approach the upper shell 31, due to the principle that the same poles of the first permanent magnet 33 and the second permanent magnet 34 repel each time the lower shell 32 approaches the upper shell 31, the staggering of the first permanent magnet 33 and the second permanent magnet 34 needs to be broken through once, the repelling resistance of each first permanent magnet 33 and the second permanent magnet 34 is A, the approaching depth of the lower shell 32 to the upper shell 31, namely the overlapping number of the first permanent magnet 33 and the second permanent magnet 34 represents X, the measurement of X is obtained by measuring the resistance of the resistance measuring module 13 through the resistance rod 36, the undetected counterforce is expressed as AX, and then the rebound calculation result is compensated, so that the influence of inertia weak movement on the detection result is avoided, and the result accuracy is improved.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A concrete strength detection device for constructional engineering comprises a resiliometer (1), and is characterized in that a fixing frame (2) is arranged on the outer side of the resiliometer (1), and a buffer compensation assembly (3) is arranged between the fixing frame (2) and the resiliometer (1);

the buffer compensation assembly (3) comprises an upper shell (31) and a lower shell (32), the top of the resiliometer (1) is abutted against the lower shell (32), the bottom part of the upper shell (31) is sleeved in the lower shell (32), a first permanent magnet (33) is fixed on the inner wall of the upper shell (31), and a fixed column (35) is fixed in the middle position in the lower shell (32);

a second permanent magnet (34) which corresponds to the first permanent magnet (33) and has opposite magnetic poles is fixed on the fixing column (35), a resistance rod (36) is fixed at the middle position in the upper shell (31), a through groove (38) which corresponds to the resistance rod (36) is preset on the fixing column (35), and electric connection copper sheets (37) which are connected with the resistance rod (36) are installed on the opening part of the through groove (38) and the upper shell (31);

the power connection copper sheet (37) is electrically connected with the power supply unit (15) and the resistance measurement module (13), the power supply unit (15) and the resistance measurement module (13) are electrically connected with a rebound tester chip (12) in the rebound tester (1), and the rebound tester chip (12) is simultaneously connected with the conversion module (14).

2. The concrete strength detection device for building engineering according to claim 1, wherein the fixing frame (2) comprises a first support rod (21) and a second support rod (22) which are located on the left side and the right side of the resiliometer (1) and are as long as the resiliometer (1).

3. The concrete strength detecting device for the construction engineering according to claim 2, wherein the first support rod (21) and the second support rod (22) are respectively rotatably sleeved on a fixed shaft (26), an upper fixing plate (24) and a lower fixing plate (25) are respectively fixed at the upper end and the lower end of the fixed shaft (26), and the upper shell (31) is fixedly connected with the lower fixing plate (25).

4. The concrete strength detection device for the building engineering according to claim 3, characterized in that a connecting plate (23) is fixed to one end of each of the first support rod (21) and the second support rod (22) far away from the fixed shaft (26), and the connecting plate (23) is flush with the bouncing rod (11) of the resiliometer (1).

5. The concrete strength detecting device for construction engineering according to claim 4, wherein the connecting plate (23), the first support bar (21) and the second support bar (22) are combined to form a zigzag structure.