CN217032335U

CN217032335U - Test block flatness detection device

Info

Publication number: CN217032335U
Application number: CN202220740211.9U
Authority: CN
Inventors: 赵子维; 王伟; 邱琼琼; 邓红玉; 米铁龙
Original assignee: Hebei Hengao Engineering Project Management Co ltd
Current assignee: Hebei Hengao Engineering Project Management Co ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-22
Anticipated expiration: 2032-04-01

Abstract

The application relates to a test block flatness detection device, which mainly relates to the technical field of detection devices and comprises a detection unit, a measurement unit, a control unit and an execution unit. The intelligent detection device has the advantages of convenience in use, high detection precision and high intelligent degree.

Description

Test block flatness detection device

Technical Field

The application relates to the technical field of detection devices, in particular to a test block flatness detection device.

Background

The concrete test block detection is an important component of engineering quality monitoring and inspection, and has a certain promotion effect on improving the engineering quality. The detection of the concrete test block comprises multiple aspects of hardness, surface flatness and the like.

At present, common concrete flatness detection equipment needs to use a clamp to fix the position of a concrete test block before flatness detection is carried out on the concrete test block. But the position of the test block is easily slightly shifted during the process of clamping the test block by the jig. This offset is difficult to observe by the human eye, but adversely affects the accuracy of the test results.

Aiming at the related technologies, the inventor finds that the surface flatness detection of the concrete test block has the defect that the precision of the detection result is influenced by slight movement of the position of the test block.

SUMMERY OF THE UTILITY MODEL

In order to improve the precision of the result that concrete test block surface smoothness detected, this application provides a test block roughness detection device.

The application provides a test block roughness detection device adopts following technical scheme:

a test block flatness detecting apparatus includes:

a power supply for providing an operating voltage;

the detection unit is connected with the power supply, arranged in a preset area for placing the concrete test block and an error area outside the preset area, and used for detecting the pressure value born by the error area;

the control unit is connected with the detection unit and used for comparing the pressure value measured by the detection unit with a preset value and outputting an alarm signal if the measured pressure value is greater than the preset value;

and the execution unit is connected with the control unit and used for responding to the alarm signal, and if the alarm signal is received, the power supply loop where the warning lamp is located is switched on and the yellow lamp is turned on.

By adopting the technical scheme, the detection unit can convert the pressure born by the edge of the position on the base where the test block is placed into an electric signal to be sent out, the control unit can receive the signal sent out by the detection unit, and compares it with preset value, and according to the condition selects whether to send out alarm signal, the execution unit is used for receiving alarm signal, and makes a corresponding response action, the application can judge whether the test block deviates from the designated position in the clamping process and convert the test block into light display which is easy to observe by human eyes through the matching of the detection unit, the control unit and the execution unit, reminds an operator whether the current test result is influenced by the position deviation of the test block, so that the user can screen out the detection result of which the precision is influenced, and the result of which the precision is not influenced is reserved, so that the aim of improving the precision of the test result is fulfilled.

Optionally, the measuring device further comprises a measuring unit, wherein the measuring unit comprises a base, at least two telescopic rods arranged on the base, a grid plate connected with the telescopic ends of the telescopic rods, a plurality of probes connected in the grid holes of the grid plate in a sliding manner, a displacement sensor and a clamp arranged on the base; the displacement sensor is connected with the control unit; the displacement sensor is used for detecting the relative displacement between the probe and the grid plate and transmitting the relative displacement to the control unit; the control unit is used for comparing the standard deviation of the displacement amount generated by each probe measured by the displacement sensor with a preset value, and outputting an unqualified signal if the standard deviation is greater than the preset value; and if the execution unit receives the unqualified signal, the power supply loop where the warning lamp is located is switched on and the red lamp is lightened.

Through adopting above-mentioned technical scheme, the telescopic link can control the lift of grid plate, the grid plate can make probe and the test block in the grid plate await measuring the plane contact at the decline in-process, probe can take place relative slip with the grid plate under the extrusion of test block, if the plane of awaiting measuring has unsmooth then can make the probe different displacement volume that appears, displacement sensor can detect the displacement volume of probe and change signal of telecommunication transmission to the control unit, the control unit can compare and judge whether the test block surface roughness accords with the predetermined standard to displacement volume standard deviation and the default of probe, thereby control execution unit makes different response actions, anchor clamps can fix the test block.

Optionally, the detection unit includes a plurality of pressure sensors disposed on the base, and the pressure sensors are disposed along an edge of a projection of the grid plate on the base.

Through adopting above-mentioned technical scheme, a plurality of pressure sensor that set up along the edge of grid plate's projection on the base can measure the pressure of the edge of the correct position that the test block was put on the base and change pressure information into the signal of telecommunication, provide the judgement basis for whether the skew appears in the position of controller to the test block on the base.

Optionally, the measurement unit further includes a reset plate; the reset plate is parallel to the base and is arranged above the grid plate.

Through adopting above-mentioned technical scheme, be on a parallel with the reset plate of pedestal mounting in grid plate top can return the probe in the grid plate to initial position when the grid plate returns the top to conveniently carry out detection on next step.

Optionally, the fixture comprises a plurality of screw rods horizontally penetrating the base and clamping jaws arranged at one end of the screw rods close to the center of the base.

Through adopting above-mentioned technical scheme, the lead screw that sets up along the horizontal direction has formed screw-thread fit with the base, can and the base between take place relative displacement, the clamping jaw can press from both sides tightly the test block under the drive of lead screw.

Optionally, the screw rod is detachably connected with the clamping jaw.

Through adopting above-mentioned technical scheme, the structural design that the lead screw can be dismantled with the clamping jaw and be connected can make things convenient for operating personnel to take off the test block from anchor clamps, has improved the convenience of test block plane degree monitoring work.

Optionally, the lower surface of the base is provided with a plurality of spacers.

Through adopting above-mentioned technical scheme, a plurality of gaskets of base lower surface can show the frictional force that improves between the plane of base and support base to reduce this application and taken place to rock or the possibility that slides in carrying out the plane degree testing process, improved the degree of accuracy of test block plane degree detection work.

Optionally, the outer surface of the warning light is sleeved with a dust cover.

Through adopting above-mentioned technical scheme, the dust cover that the warning light surface cover was established has played the guard action to the warning light, is favorable to avoiding the concrete dust on the test block to attach to the condition appearance that makes the display effect variation of warning light on the warning light.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the detection unit in the application can convert the pressure born by the edge of the position of the test block on the base into an electric signal to be sent out, the control unit can receive the signal sent out by the detection unit, and compares the alarm signal with a preset value, and selects whether to send out the alarm signal according to the situation, the execution unit is used for receiving the alarm signal, and makes the corresponding response action, the application can judge whether the test block deviates from the designated position in the clamping process and convert the test block into the light display which is easy to observe by human eyes through the matching of the detection unit, the control unit and the execution unit, reminds the operator whether the test result of the current time is influenced by the position deviation of the test block, so that the user can screen out the detection result of which the precision is influenced, the result with unaffected precision is reserved, and the aim of improving the precision of the test result is fulfilled;

2. the telescopic link in the application can control the lifting of the grid plate, the grid plate can enable probes in the grid plate to be in contact with a test block to be tested in the descending process, the probes can slide relative to the grid plate under the extrusion of the test block, if the test block to be tested has concave-convex parts, the probes can have different displacement amounts, the displacement sensor can detect the displacement amounts of the probes and convert the displacement amounts into electric signals to be transmitted to the control unit, the control unit can compare the standard deviation of the displacement amounts of the probes with a preset value and judge whether the surface flatness of the test block meets the preset standard or not, so that the control execution unit can make different response actions, and the clamp can fix the test block;

3. the dust cover that the warning light surface cover in this application was established has played the guard action to the warning light, is favorable to avoiding the concrete dust on the test block to attach to the condition appearance that makes the display effect variation of warning light on the warning light.

Drawings

Fig. 1 is a schematic structural diagram of a test block flatness detecting apparatus disclosed in an embodiment of the present application.

Fig. 2 is a signal transmission diagram according to an embodiment of the present application.

Description of reference numerals: 1. a power source; 2. a detection unit; 3. a measuring unit; 4. a control unit; 5. an execution unit; 6. a warning light; 21. a pressure sensor; 31. a base; 32. a telescopic rod; 33. a grid plate; 34. a probe; 35. a displacement sensor; 36. a clamp; 37. a reset plate; 311. a gasket; 361. a screw rod; 362. a clamping jaw; 61. a dust cover.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

At present, the surface flatness detection of a concrete test block needs to use a clamp to pre-fix the test block. Since the test block is easy to have slight displacement which is not easy to observe in the clamping process, the precision of the test block flatness detection is influenced. In order to improve the accuracy and the detection efficiency of detection work, the embodiment of the application provides a test block flatness detection device.

The embodiment of the application discloses a test block flatness detection device. Referring to fig. 1 and 2, the test block flatness detecting apparatus includes a power supply, a detecting unit, a measuring unit, a control unit, an executing unit, and a warning lamp.

Referring to fig. 1 and 2, the measuring unit 3 includes a base 31, a telescopic bar 32, a mesh plate 33, a probe 34, a displacement sensor 35, a clamping jaw 362, and a reset plate 37. The base 31 may be a rectangular metal plate with a bump having a threaded hole welded at a symmetrical position on the edge. Four gaskets 311 are installed on the lower surface of the base 31 in a liquid glue bonding mode, the gaskets 311 can be rectangular rubber sheets, and the four gaskets 311 are respectively located at four corners of the lower surface of the base 31. The telescopic rod 32 may be a cylinder or a spring rod, and the number of the telescopic rods 32 is set to be plural, and 4 in the embodiment of the present application. The telescopic rods 32 are vertically installed at four corners of the upper surface of the base 31 by means of welding or screw connection. The grid plate 33 is parallel to the upper surface of the base 31 and fixed at the telescopic end of the telescopic rod 32, a probe 34 is connected in each mesh of the grid plate 33 in a sliding manner, and limiting bulges for preventing the probe 34 from slipping off from the grid plate 33 are arranged at two ends of the probe 34. Displacement sensor 35 installs on telescopic link 32, and displacement sensor 35 can select for use multi-probe laser sensor for the relative displacement volume between detection probe 34 and the grid plate 33 to convert the roughness signal transmission to the control unit 4. The jig 36 includes a plurality of lead screws 361 and a holding jaw 362 mounted on the lead screws 361 near the center of the base 31. The screw 361 is inserted into a threaded hole of the projection of the base 31, and the clamping jaw 362 can be a U-shaped metal sheet installed on the screw 361 in a threaded connection manner. The reset plate 37 may be a rectangular plate made of polyurethane, and the reset plate 37 is installed above the grid plate 33 where the probes 34 are installed, in parallel with the base 31.

Referring to fig. 1 and 2, the sensing unit 2 includes a plurality of strip-shaped pressure sensors 21, and the number of the pressure sensors 21 may be 4 in the embodiment of the present application. The pressure sensor 21 is mounted on the upper surface of the base 31 at the edge of the projected location of the grid plate 33. The pressure sensor 21 is capable of transmitting to the control unit 4 the pressure experienced by the base 31 at the edge position of the perpendicular projection of the grid plate 33 on the base 31.

Referring to fig. 1 and 2, the control unit 4 may be a PLC programmable controller. The control unit 4 is connected to the detection unit 2 and the measurement unit 3. The control unit 4 can compare the pressure value measured by the detection unit 2 with a preset value, if the pressure value is greater than the preset value, it is proved that an error area, namely, an edge area of the projection position of the grid plate 33 on the base 31 is pressed, it is indicated that the test block deviates from the preset area, and at this time, the control unit 4 sends an alarm signal. The control unit 4 can compare the standard deviation of the displacement of the probe 34 measured by the displacement sensor 35 with a preset value, and if the standard deviation is greater than the preset value, it indicates that the unevenness of the test surface of the test block exceeds the standard requirement, and at this moment, the control unit sends a fail signal.

Referring to fig. 1 and 2, the execution unit 5 is connected to the control unit 4 and is capable of responding to a signal sent by the control unit 4 and making the warning light 6 perform a corresponding response action. When a fail signal is received, the control warning lamp 6 is turned on to indicate that the surface evenness of the test block cannot pass the test. When receiving the alarm signal, control warning light 6 and shine yellow light, represent that the test block is placed the position and is appeared the deviation with the assigned position, need adjust the back and can detect. The warning lamp 6 is provided with a dust cover 61, and the dust cover 61 is sleeved outside the light-emitting part of the warning lamp 6.

The implementation principle of the test block flatness detection device in the embodiment of the application is as follows: the worker first cleans up the soil on the surface of the concrete test block to be tested, then places the test block stably under the grid plate 33 on the base 31, and then rotates the lead screw 361 to enable the clamp 36 to clamp the test block. Switch on 1 is this application power supply, moves the test block gently, and the yellow light that adjusts the test block position until warning light 6 extinguishes, then control telescopic link 32 descends and make probe 34 and test block contact, if bright red light then represent the test block surface smoothness and have not passed through the test, otherwise represent the test block surface smoothness and passed the test.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a test block roughness detection device which characterized in that includes:

a power supply (1) for providing an operating voltage;

the detection unit (2) is connected with the power supply (1), arranged in a preset area for placing the concrete test block and an error area outside the preset area, and used for detecting the pressure value born by the error area;

the control unit (4) is connected with the detection unit (2) and used for comparing the pressure value measured by the detection unit (2) with a preset value and outputting an alarm signal if the measured pressure value is greater than the preset value;

and the execution unit (5) is connected to the control unit (4) and used for responding to the alarm signal, and if the alarm signal is received, the power supply loop where the warning lamp (6) is located is switched on and the yellow lamp is turned on.

2. The test block flatness detecting apparatus according to claim 1, wherein: the device is characterized by further comprising a measuring unit (3), wherein the measuring unit (3) comprises a base (31), at least two telescopic rods (32) arranged on the base (31), a grid plate (33) connected with the telescopic ends of the telescopic rods (32), a plurality of probes (34) connected in the meshes of the grid plate (33) in a sliding mode, a displacement sensor (35) and a clamp (36) arranged on the base (31);

the displacement sensor (35) is connected with the control unit (4); the displacement sensor (35) is used for detecting the relative displacement between the probe (34) and the grid plate (33) and transmitting the relative displacement to the control unit (4);

the control unit (4) is used for comparing the standard deviation of the displacement amount of each probe (34) measured by the displacement sensor (35) with a preset value, and outputting a disqualified signal if the standard deviation is greater than the preset value;

and if the execution unit (5) receives the unqualified signal, the power supply loop where the warning lamp (6) is located is switched on and the red lamp is turned on.

3. The test block flatness detecting apparatus according to claim 2, wherein: the detection unit (2) comprises a plurality of pressure sensors (21) arranged on the base (31), and the pressure sensors (21) are arranged along the edge of the projection of the grid plate (33) on the base (31).

4. The test block flatness detecting apparatus according to claim 2, wherein: the measuring unit (3) further comprises a reset plate (37); the reset plate (37) is arranged in parallel to the base (31), and the reset plate (37) is positioned above the grid plate (33).

5. The test block flatness detecting apparatus according to claim 2, wherein: the clamp (36) comprises a plurality of screw rods (361) which are arranged on the base (31) in a penetrating mode along the horizontal direction and clamping jaws (362) which are arranged at one end, close to the center of the base (31), of each screw rod (361).

6. The test block flatness detecting apparatus according to claim 5, wherein: the screw rod (361) is detachably connected with the clamping jaw (362).

7. The test block flatness detecting apparatus according to claim 2, wherein: the lower surface of base (31) is equipped with a plurality of gaskets (311).

8. The test block flatness detecting apparatus according to claim 1, wherein: the outer surface cover of warning light (6) is equipped with dust cover (61).