A concrete strength tester

Abstract

The utility model belongs to the technical field of building engineering, concretely is a kind of concrete strength tester, including test vertical pole and the fixed vertical pole of lower end embedding in concrete;Vibration generator and swing tester are respectively installed on test vertical pole, and vibration generator is located above swing tester;The lower end of test vertical pole is fixedly connected with the upper end of fixed vertical pole.The utility model is reasonable in design, has little influence on concrete structure when testing, budget cost is low to check, and the strength of concrete can be monitored after pouring process and completion, with good practical application value.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, specifically a concrete strength tester. Background Technology

[0002] Early concrete strength testing relied heavily on destructive testing, involving the creation of concrete specimens for laboratory tests such as compressive and flexural strength. The specimen strength indirectly represented the concrete strength of the structural entity. This method has significant drawbacks: the specimen preparation and curing environment differs from that of actual concrete structures in engineering projects, resulting in the specimen strength failing to accurately reflect the structural strength; existing methods rely on manual labor, and direct sampling from the structure can damage the concrete, affecting its integrity and safety, and is particularly unsuitable for testing specimens of important completed structures; furthermore, the requirement to wait for the concrete to cure to the specified age prevents real-time monitoring of strength growth during construction, hindering timely adjustments to construction techniques. This proposal suggests a concrete strength testing device with minimal impact on the concrete structure and low inspection costs, enabling periodic monitoring of concrete strength during and after pouring. Summary of the Invention

[0003] The purpose of this invention is to provide a concrete strength tester that has minimal impact on the concrete structure during testing, has low inspection costs, and can monitor the concrete strength during and after the pouring process.

[0004] This utility model is achieved using the following technical solution: A concrete strength tester includes a test pole and a fixed pole with its lower end embedded in concrete; a vibration generator and a swing amplitude tester are respectively installed on the test pole, with the vibration generator located above the swing amplitude tester; the lower end of the test pole is fixedly connected to the upper end of the fixed pole.

[0005] More preferably, the vibration generator includes a fixing screw I, a fixing sleeve I, a waterproof protective shell I, a battery and control device, a vibration counterweight, and a motor; The fixed sleeve I is vertically fixed to the inner wall of the waterproof protective shell I. The side wall of the waterproof protective shell I is provided with multiple fixing screws I corresponding to the area of ​​the fixed sleeve I. After the test pole is inserted into the fixed sleeve I and moved to the preset position, the waterproof protective shell I is fixed to the test pole by tightening the fixing screws I. The motor is installed inside the waterproof protective shell I. A vibration counterweight is installed at the end of the motor output shaft. The battery and control device are installed in the upper part of the waterproof protective shell I. The battery and control device supply power to the motor and control its operation.

[0006] More preferably, the swing amplitude tester includes a fixed rod II, a swing amplitude angle measuring device, a signal transmitting device, a fixed sleeve rod II, a fixed screw II, and a waterproof protective shell II; The fixed sleeve rod II is vertically fixed to the inner wall of the waterproof protective shell II. The side wall of the waterproof protective shell II is provided with multiple fixing screws II corresponding to the area of ​​the fixed sleeve rod II. After the test pole is inserted into the fixed sleeve rod II and moved to the preset position, the waterproof protective shell II is fixed to the test pole by tightening the fixing screws II. The waterproof protective shell II is provided with a fixed rod II, and a swing angle measuring device is installed on the fixed rod II. The waterproof protective shell II is also provided with a signal transmitting device. After the swing angle measuring device measures the swing angle, it transmits the data through the signal transmitting device.

[0007] More preferably, the battery and control device control the motor to operate at preset time intervals.

[0008] More preferably, the test pole is marked with fixed scale lines for installing the vibration generator and fixed scale lines for installing the swing amplitude tester.

[0009] More preferably, the lower end of the test pole is fixedly connected to the upper end of the fixed pole by a threaded connection.

[0010] In actual operation, the vibration generator is instructed by a pre-set battery and control device to output current at regular intervals to control the motor to rotate, which drives the vibration counterweight to rotate, generating kinetic energy and causing the test pole to sway. During the operation of the vibration generator, the swing amplitude tester receives the vibration transmitted from the test pole, causing the swing amplitude angle measuring device to swing bidirectionally. The swing amplitude angle measuring device sends the maximum and minimum swing angle values ​​to the signal transmitting device, which records them and sends them to the mobile terminal for analysis by the test personnel.

[0011] This utility model is reasonably designed and has good practical application value. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the overall structure of a concrete strength tester.

[0013] Figure 2 This diagram illustrates the working principle of a vibration generator.

[0014] Figure 3 This diagram illustrates the working principle of the swing amplitude tester.

[0015] In the diagram, 1-Vibration generator, 2-Test pole, 3-Swing amplitude tester, 4-Fixed pole, 101-Fixing screw I, 102-Fixing sleeve I, 103-Waterproof protective shell I, 104-Battery and control device, 105-Vibration counterweight, 106-Motor, 301-Fixed pole II, 302-Swing angle measuring device, 303-Signal transmitting device, 304-Fixed sleeve II, 305-Fixing screw II, 306-Waterproof protective shell II. Detailed Implementation

[0016] To enable those skilled in the art to better understand this utility model, the following description, in conjunction with the accompanying drawings, will provide a clearer and more complete account of the utility model.

[0017] This utility model provides a concrete strength tester, such as... Figure 1 As shown, it includes a test pole 2 and a fixed pole 4 whose lower end is embedded in concrete.

[0018] like Figure 1 As shown, a vibration generator 1 and a swing amplitude tester 3 are respectively installed on the test pole 2, and the vibration generator 1 is located above the swing amplitude tester 3; the lower end of the test pole 2 is fixedly connected to the upper end of the fixed pole 4.

[0019] like Figure 2 As shown, the vibration generator 1 includes fixing screws I101, fixing sleeve rod I102, waterproof protective shell I103, battery and control device 104, vibration counterweight 105, and motor 106. The fixing sleeve rod I102 is vertically fixed to the inner wall of the waterproof protective shell I103. The side wall of the waterproof protective shell I103 is provided with multiple fixing screws I101 corresponding to the area of ​​the fixing sleeve rod I102. After the test rod 2 is inserted into the fixing sleeve rod I102 and moved to the preset position, the waterproof protective shell I103 is fixed to the test rod 2 by tightening the fixing screws I101. The motor 106 is installed inside the waterproof protective shell I103. The vibration counterweight 105 is installed at the end of the output shaft of the motor 106. The battery and control device 104 is installed in the upper part of the waterproof protective shell I103. The battery and control device 104 supplies power to the motor 106 and controls its operation.

[0020] like Figure 3As shown, the swing amplitude tester 3 includes a fixed rod II 301, a swing amplitude angle measuring device 302, a signal transmitting device 303, a fixed sleeve rod II 304, a fixing screw II 305, and a waterproof protective shell II 306. The fixed sleeve rod II 304 is vertically fixed to the inner wall of the waterproof protective shell II 306. The side wall of the waterproof protective shell II 306 is provided with multiple fixing screws II 305 corresponding to the area of ​​the fixed sleeve rod II 304. After the test rod 2 is inserted into the fixed sleeve rod II 304 and moved to the preset position, the waterproof protective shell II 306 is fixed to the test rod 2 by tightening the fixing screws II 305. The fixed rod II 301 is provided inside the waterproof protective shell II 304. The swing amplitude angle measuring device 302 is installed on the fixed rod II 301. The signal transmitting device 303 is installed inside the waterproof protective shell II 306. After the swing amplitude angle measuring device 302 measures the swing angle, it transmits the data through the signal transmitting device 303.

[0021] like Figure 2 As shown, the battery and control device 104 control the motor to operate at preset time intervals.

[0022] like Figure 1 , 2 As shown, the test pole 2 is marked with fixed scale lines for installing the vibration generator 1 and the swing amplitude tester 3, ensuring that the conditions for each test are the same, which facilitates the analysis of the laws governing concrete solidification and the generation of its strength.

[0023] like Figure 1 As shown, the lower end of the test pole 2 is fixedly connected to the upper end of the fixed pole 4 by a threaded connection.

[0024] During assembly, first install the vibration generator 1, then install the motor 106 inside the waterproof protective housing I 103. Next, install the vibration counterweight 105 at the end of the output shaft of the motor 106. Install the battery and control device 104 inside the upper part of the waterproof protective housing I 103 to supply power to the motor 106 and control its operation. Finally, vertically fix the fixing sleeve I 102 to the inner wall of the waterproof protective housing I 103. The side wall of the waterproof protective housing I 103 is provided with multiple fixing screws I 101 corresponding to the area of ​​the fixing sleeve I 102. After inserting the test rod 2 into the fixing sleeve I 102 and moving it to the preset position, tighten the fixing screws I 101 to fix the waterproof protective housing I 103 to the test rod 2.

[0025] Next, install the swing amplitude tester 3. First, place the signal transmitting device 303 inside the bottom of the waterproof protective housing II. Then, fix the swing amplitude angle measuring device 302 on the fixed rod II 301. After measuring the swing angle, the swing amplitude angle measuring device 302 transmits the data through the signal transmitting device 303.

[0026] Finally, the fixing sleeve II 304 is vertically fixed to the inner wall of the waterproof protective shell II 306. The side wall of the waterproof protective shell II 306 is provided with multiple fixing screws II 305 corresponding to the area of ​​the fixing sleeve II 304. After the test pole 2 is inserted into the fixing sleeve II 304 and moved to the preset position, the waterproof protective shell II 306 is fixed to the test pole 2 by tightening the fixing screws II 305.

[0027] Finally, the installed vibration generator 1 and swing amplitude tester 2 are sequentially placed on the test pole 2, and the fixing screws I101 and II305 are tightened at the installation fixing line position to fix them on the test pole 2. Then, they are connected to the fixing pole 4 embedded in the poured concrete at the lower end through the installation screw hole to complete the installation of the instrument.

[0028] In use, the vibration generator 1 is instructed by the pre-set battery and control device 104 to output current at regular intervals to control the rotation of the motor 106, which drives the vibration counterweight 105 to rotate, generating kinetic energy and causing the test pole 2 to sway. During the operation of the vibration generator 1, the swing amplitude tester 3 receives the vibration transmitted from the test pole 2, causing the swing amplitude angle measuring device 302 to swing bidirectionally. The swing amplitude angle measuring device 302 can also measure the swing amplitude angle. After the vibration generator 1 finishes working, the swing amplitude angle measuring device 302 sends the maximum and minimum swing angle values ​​to the signal transmitting device 303, which records them and sends them to the mobile terminal for analysis by the test personnel.

[0029] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A concrete strength tester, characterized in that: Includes a test pole (2) and a fixed pole (4) with its lower end embedded in concrete; The test pole (2) is equipped with a vibration generator (1) and a swing amplitude tester (3), and the vibration generator (1) is located above the swing amplitude tester (3); The lower end of the test pole (2) is fixedly connected to the upper end of the fixed pole (4).

2. The concrete strength tester according to claim 1, characterized in that: The vibration generator (1) includes a fixing screw I (101), a fixing sleeve I (102), a waterproof protective shell I (103), a battery and control device (104), a vibration counterweight (105), and a motor (106). The fixed sleeve rod I (102) is vertically fixed to the inner wall of the waterproof protective shell I (103). The side wall of the waterproof protective shell I (103) is provided with multiple fixing screws I (101) corresponding to the area of ​​the fixed sleeve rod I (102). After the test pole (2) is inserted into the fixed sleeve rod I (102) and moved to the preset position, the waterproof protective shell I (103) is fixed to the test pole (2) by tightening the fixing screws I (101). The motor (106) is installed inside the waterproof protective shell I (103). The output shaft end of the motor (106) is equipped with a vibration counterweight (105). The battery and control device (104) are installed in the upper part of the waterproof protective shell I (103). The battery and control device (104) supply power to the motor (106) and control its operation.

3. A concrete strength tester according to claim 1, characterized in that: The swing amplitude tester (3) includes a fixed rod II (301), a swing amplitude angle measuring device (302), a signal transmitting device (303), a fixed sleeve rod II (304), a fixed screw II (305), and a waterproof protective shell II (306); The fixed sleeve rod II (304) is vertically fixed to the inner wall of the waterproof protective shell II (306). The side wall of the waterproof protective shell II (306) is provided with multiple fixing screws II (305) corresponding to the area of ​​the fixed sleeve rod II (304). After the test pole (2) is inserted into the fixed sleeve rod II (304) and moved to the preset position, the waterproof protective shell II (306) is fixed to the test pole (2) by tightening the fixing screws II (305). The waterproof protective shell II (306) is provided with a fixed rod II (301). The fixed rod II (301) is equipped with a swing angle measuring device (302). The waterproof protective shell II (306) is equipped with a signal transmitting device (303). After the swing angle measuring device (302) measures the swing angle, it transmits the data through the signal transmitting device (303).

4. A concrete strength tester according to claim 2, characterized in that: The battery and control device (104) control the motor to operate at preset time intervals.

5. A concrete strength tester according to claim 1, characterized in that: The test pole (2) is marked with a fixed scale line for installing the vibration generator (1) and a fixed scale line for installing the swing amplitude tester (3).

6. A concrete strength tester according to claim 1, characterized in that: The lower end of the test pole (2) is fixedly connected to the upper end of the fixed pole (4) by means of a threaded connection.

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