A concrete hardness testing device

Abstract

The present invention discloses a concrete hardness testing device, comprising a frame and a testing mechanism arranged at one end of the frame, wherein the testing mechanism comprises a testing frame arranged at one end of the top of the frame, a testing instrument is arranged below the testing frame, and a pressure block for applying pressure to a concrete test block is arranged at the bottom of the testing instrument; a circular turntable is rotatably connected to the corresponding part of the upper end of the frame and the testing mechanism, and a holding box corresponding to the pressure block and used for holding the concrete test block is evenly arranged on the top periphery of the turntable. The concrete hardness testing device can evenly place multiple concrete test blocks on the periphery of the turntable, and when the testing mechanism rises and resets after testing a test block, the turntable can be rotated by linkage with a driving component, so that the subsequent test blocks are transferred to the testing mechanism, so that the tested test blocks can be removed and cleaned during the testing, which greatly improves the work efficiency.

Description

Technical Field

[0001] The invention relates to the field of concrete detection, and in particular to a concrete hardness detection device. Background Art

[0002] Concrete is widely used in life. When concrete is used, a hardness testing device is needed to test its hardness to determine whether the concrete material meets the requirements. However, existing concrete hardness testing devices are available.

[0003] A concrete hardness detection device is disclosed in Chinese patent application No.: 202122238797.7, which includes a fixed base, a support arm is provided on the upper surface of the fixed base, a connecting frame is provided on the outer side of the support arm, a placement plate is provided at the end of the connecting frame away from the support arm, a sliding sleeve is provided at the top of the support arm, a mounting arm is provided on the top of the sliding sleeve, and a detection mechanism is provided at the end of the mounting arm away from the sliding sleeve. Compared with the existing concrete hardness detection device, the utility model can improve the overall convenience, accuracy and practicality of the concrete hardness detection device through design.

[0004] In the above-mentioned prior art, after testing a concrete test block, the debris needs to be removed and cleaned, and then a new test block can be fixed for testing. During the period of removal, cleaning and fixing, the device is in a stagnant state, with poor sustainability, which affects work efficiency.

[0005] Therefore, it is necessary to propose a concrete hardness detection device to solve the above problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a concrete hardness detection device, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A concrete hardness testing device comprises a frame and a testing mechanism arranged at one end of the frame, wherein the testing mechanism comprises a testing frame arranged at one end of the top of the frame, a testing instrument is arranged below the testing frame, a pressure block for applying pressure to a concrete test block is arranged at the bottom of the testing instrument, a lifting frame is arranged at the top of the testing instrument, and a cylinder for driving the lifting frame to rise and fall is arranged at the upper end of the testing frame;

[0009] A circular turntable is rotatably connected to the upper end of the frame corresponding to the detection mechanism, and a holding box corresponding to the pressing block and used to hold the concrete test block is evenly arranged on the top periphery of the turntable;

[0010] The cam is an angular channel that is fixedly connected to the top of the frame and is engaged with the cam and is used for rotating the cams.

[0011] Preferably, one end of the inclined groove corresponds to the upper end of an adjacent straight groove, and the other end of the inclined groove corresponds to the lower end of another adjacent straight groove, so that the adjacent straight grooves and the inclined groove form an "N"-shaped groove.

[0012] Preferably, when the driving wheel moves from the lower end to the upper end of the inclined slot, the amplitude of rotation of the turntable is the distance between the centers of two adjacent containing boxes.

[0013] Preferably, the inner upper end of the inclined groove and the inner lower end of the straight groove are both provided with a second mounting groove, the second mounting groove is movably connected with a guide block, a second spring is provided between the guide block and the inner wall of the second mounting groove, and the guide block protrudes from the inner walls of the straight groove and the inclined groove in the reset state of the second spring.

[0014] Preferably, the cross section of the guide block is a right-angled trapezoid, and the guide block located inside the inclined groove has a sloped surface on one side facing the guide block, and the guide block located inside the straight groove has a sloped surface on one side facing the straight groove.

[0015] Preferably, the vertical plate and the lifting frame are movably connected via a floating assembly, the floating assembly comprises a first mounting groove arranged at the top of the vertical plate, the first mounting groove is movably connected with a guide plate, the top of the guide plate is fixedly connected to the bottom of the lifting frame, and a first spring is vertically arranged between the bottom of the guide plate and the bottom of the inner cavity of the first mounting groove.

[0016] Preferably, a guide shell for guiding the vertical plate is fixedly connected to the top of the frame corresponding to the vertical plate, a guide groove adapted by the vertical plate is provided on one side of the guide shell, and the lower end of the vertical plate is movably connected to the inner side of the guide groove.

[0017] Preferably, the containing box is connected to the turntable via a self-locking component, the self-locking component comprises a plug-in block arranged at the bottom of the containing box, a plug-in slot corresponding to the containing box is arranged on the outer periphery of the top of the turntable, a locking port is arranged on one side of the plug-in block, an accommodating cavity is arranged on the inner side of the plug-in slot away from the center of the turntable, a sliding block is movably connected to the inner side of the accommodating cavity, a locking pin corresponding to and adapted to the locking port is arranged at one end of the sliding block, a third spring is arranged on the side of the sliding block away from the locking pin, a driving block for driving the sliding block to move horizontally is arranged at the bottom of the sliding block, a column extending to the bottom of the turntable is vertically fixedly connected to the bottom of the driving block, and a convex strip corresponding to the column is arranged at the top end of the frame.

[0018] Preferably, the plug-in block is plug-fitted into the plug-in slot;

[0019] The locking pin is plug-fitted into the locking opening;

[0020] The driving block cooperates with the bottom inclined surface of the sliding block and is configured so that when the driving block rises, the sliding block moves in a direction away from the plug-in slot.

[0021] Preferably, both ends of the convex strip are sloped surfaces that smoothly transition to the top of the frame, and are configured so that one end of the locking pin disengages from the locking opening when the column moves to the highest end of the convex strip.

[0022] Compared with the prior art, the present invention provides a concrete hardness detection device, which has the following beneficial effects:

[0023] 1. The concrete hardness testing device can evenly place multiple concrete test blocks on the periphery of the turntable through the arrangement. When the testing mechanism detects a test block and rises to reset, the turntable can be rotated through the linkage of the driving component, so that the subsequent test blocks can be transferred to the testing mechanism. Therefore, the tested test blocks can be removed and cleaned during the testing, and new test blocks can be fixed during this period, which does not affect the normal testing of the testing mechanism. The device has high continuity and can realize continuous testing operations, greatly improving work efficiency. Moreover, a containing box is used to place the test blocks, which can prevent the test blocks from breaking, scattering or splashing debris during testing, which not only increases safety, but also increases convenience by cleaning the debris in the containing box by dumping.

[0024] 2. The concrete hardness testing device can adapt to the situation that when the test block is broken, the lifting frame continues to move downward while the vertical plate remains stationary through the provided floating assembly, so that the downward movement distance of the pressure block is greater than the downward movement distance of the vertical plate.

[0025] 3. The concrete hardness detection device can guide the driving wheel through the guide block and the second spring to ensure that the driving wheel will not return to the straight groove when it moves to the lower end of the straight groove and then moves upward, and will not return to the inclined groove when it moves to the upper end of the inclined groove and then moves downward.

[0026] 4. The concrete hardness testing device can facilitate the disassembly and assembly of the containing box through the self-locking component, which can increase its stability during testing. After the test, it will automatically unlock as it rotates, making it easy to remove, clean and replace, without additional disassembly and assembly operations, and easy to take and put. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the detection frame, the turntable and the frame of the present invention in a disassembled state;

[0030] Figure 4 The present invention Figure 3 A structural diagram from another perspective of the basis;

[0031] Figure 5 It is a structural schematic diagram of the drive assembly of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the guide plate, the driving wheel and the driving wheel in the separated state of the present invention;

[0033] Figure 7 It is a schematic structural diagram of the driving roller of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of one of the guide blocks and the driving roller in the present invention when they are separated;

[0035] Fig. 9 It is a structural schematic diagram of the self-locking component and the rotating disk of the present invention in a separated state;

[0036] Fig.10 It is a schematic diagram of the specific structure of the sliding block and the driving block of the present invention;

[0037] Fig.11 It is a schematic diagram of the cross-sectional structure of the turntable of the present invention.

[0038] In the figure: 1, frame; 2, detection frame; 3, turntable; 4, cylinder; 5, detector; 6, containing box; 7, pressure block; 8, driving roller; 9, lifting frame; 10, guide shell; 11, convex strip; 12, first rotating shaft; 13, driving wheel; 14, driven wheel; 15, second rotating shaft; 16, vertical plate; 17, guide plate; 18, first mounting groove; 19, first spring; 20, driving wheel; 21, straight groove; 22, inclined groove; 23, guide block; 24, second mounting groove; 25, second spring; 26, plug-in block; 27, locking port; 28, plug-in slot; 29, sliding block; 30, column; 31, locking pin; 32, driving block; 33, third spring; 34, accommodating chamber. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] Example

[0041] like Figure 1-Figure 11 As shown, in this embodiment, a concrete hardness testing device includes a frame 1 and a testing mechanism arranged at one end of the frame 1, the testing mechanism includes a testing frame 2 arranged at one end of the top of the frame 1, a testing instrument 5 is arranged below the testing frame 2, a pressure block 7 for applying pressure to a concrete test block is arranged at the bottom of the testing instrument 5, a lifting frame 9 is arranged on the top of the testing instrument 5, and a cylinder 4 for driving the lifting frame 9 to rise and fall is arranged at the upper end of the testing frame 2;

[0042] Different from the prior art, a circular turntable 3 is rotatably connected to the upper end of the frame 1 corresponding to the detection mechanism, and a holding box 6 corresponding to the pressing block 7 and used to hold the concrete test block is evenly arranged on the top periphery of the turntable 3;

[0043] Furthermore, it also includes a driving component that is linked with the lifting frame 9 and is used to drive the turntable 3 to rotate intermittently, the driving component includes a driven wheel 14 that is rotatably connected to the bottom of the frame 1 through a first rotating shaft 12, and the upper end of the first rotating shaft 12 extends to the top of the frame 1 and is fixedly connected to the turntable 3, and a driving wheel 13 that meshes with the driven wheel 14 is rotatably connected to the frame 1 on one side of the driven wheel 14 through a second rotating shaft 15, and the upper end of the second rotating shaft 15 extends to the top of the frame 1 and is fixedly connected to a driving roller 8, and the side wall of the driving roller 8 is evenly provided with straight grooves 21 parallel to the axis of the driving roller 8 along the circumference of the driving roller 8, and an inclined groove 22 connected to the straight groove 21 is provided between adjacent straight grooves 21, one end of the inclined groove 22 corresponds to the upper end of an adjacent straight groove 21, and the other end of the inclined groove 22 is connected to the adjacent straight groove 21. The lower end of another adjacent straight groove 21 corresponds to that of the adjacent straight groove 21, so that the adjacent straight groove 21 and the inclined groove 22 form an "N"-shaped groove. A vertical plate 16 is provided at one end of the bottom of the lifting frame 9, and a driving wheel 20 that movably cooperates with the straight groove 21 and the inclined groove 22 is provided on one side of the lower end of the vertical plate 16, and is configured so that when the lifting frame 9 descends, the driving wheel 20 moves downward along the straight groove 21, and when the lifting frame 9 rises, the driving wheel 20 moves upward along the inclined groove 22. When the driving wheel 20 moves from the lower end to the upper end of the inclined groove 22, the rotation amplitude of the turntable 3 is the distance between the centers of two adjacent containing boxes 6. A guide shell 10 for guiding the vertical plate 16 is fixedly connected at the corresponding position of the top of the frame 1 and the vertical plate 16, and a guide groove adapted by the vertical plate 16 is provided on one side of the guide shell 10, and the lower end of the vertical plate 16 is movably connected to the inner side of the guide groove.

[0044] Furthermore, in order to guide the driving wheel 20, a second mounting groove 24 is provided at the inner upper end of the inclined groove 22 and the inner lower end of the straight groove 21, and the second mounting groove 24 is movably connected with a guide block 23, and a second spring 25 is provided between the guide block 23 and the inner wall of the second mounting groove 24, and the guide block 23 protrudes from the inner walls of the straight groove 21 and the inclined groove 22 in the reset state of the second spring 25, the cross-section of the guide block 23 is a right-angled trapezoid, and the guide block 23 located on the inner side of the inclined groove 22 has an inclined surface on one side facing the guide block 23, and the guide block 23 located on the inner side of the straight groove 21 has an inclined surface on one side facing the straight groove 21.

[0045] Furthermore, the vertical plate 16 is movably connected to the lifting frame 9 through a floating assembly, and the floating assembly includes a first mounting groove 18 arranged at the top of the vertical plate 16, and the first mounting groove 18 is movably connected with a guide plate 17, the top of the guide plate 17 is fixedly connected to the bottom of the lifting frame 9, and a first spring 19 is vertically arranged between the bottom of the guide plate 17 and the bottom of the inner cavity of the first mounting groove 18.

[0046] In addition, in order to facilitate the taking and placing of the containing box 6, the containing box 6 is connected to the turntable 3 through a self-locking component, and the self-locking component includes a plug-in block 26 arranged at the bottom of the containing box 6, and a plug-in groove 28 corresponding to the containing box 6 is arranged on the top periphery of the turntable 3. The block 26 is plugged into the plug-in groove 28, and a locking port 27 is arranged on one side of the plug-in block 26. An accommodating cavity 34 is arranged at one end of the inner side of the plug-in groove 28 away from the center of the turntable 3, and a sliding block 29 is movably connected to the inner side of the accommodating cavity 34. A locking pin 31 corresponding to and matching the locking port 27 is arranged at one end of the sliding block 29. The locking pin 31 is plugged into the locking port 27, and the sliding block 29 is away from the locking port 27. A third spring 33 is provided on one side of the fixed pin 31, and a driving block 32 for driving the sliding block 29 to move horizontally is provided at the bottom of the sliding block 29. The driving block 32 cooperates with the bottom inclined surface of the sliding block 29, and is configured so that when the driving block 32 rises, the sliding block 29 moves in a direction away from the plug-in slot 28, and the bottom of the driving block 32 is vertically fixedly connected with a column 30 extending to the bottom of the turntable 3, and a convex strip 11 corresponding to the column 30 is provided at one end of the top of the frame 1, and both ends of the convex strip 11 are slopes that smoothly transition to the top of the frame 1, and are configured so that when the column 30 moves to the highest end of the convex strip 11, one end of the locking pin 31 disengages from the locking port 27.

[0047] Working principle: when in use, concrete test blocks can be placed one by one in multiple containing boxes 6, and then the control cylinder 4 drives the lifting frame 9 to move downward, the lifting frame 9 drives the detector 5 and the vertical plate 16 to move downward, the detector 5 drives the pressing block 7 to move downward, the guide shell 10 guides the vertical plate 16, the vertical plate 16 drives the driving wheel 20 to move downward, and when the driving wheel 20 moves downward, it moves downward in the straight groove 21. At this time, the driving roller 8 remains stationary. As it moves downward, the driving wheel 20 moves to the lower end of the straight groove 21 and squeezes the guide block 23 at the lower end of the straight groove 21. The guide block 23 enters the second installation groove 24 and compresses the first The second spring 25, when the straight groove 21 completely passes through the guide block 23, the second spring 25 is reset, the guide block 23 pops out, and then the pressure block 7 enters the containing box 6 to press the test block until the test block is broken, and then the concrete hardness can be obtained by reading the reading through the detector 5. Due to the rupture of the test block, the lifting frame 9 will move downward for a certain distance. Since the driving wheel 20 has reached the bottom of the straight groove 21, the vertical plate 16 remains stationary. At this time, the lifting frame 9 drives the guide plate 17 to continue to move downward, and the first spring 19 is compressed. Then the cylinder 4 drives the lifting frame 9 to rise and reset, and the pressure block 7 is separated from the containing box 6. The first spring 19 is compressed, and then the cylinder 4 drives the lifting frame 9 to rise and reset. The pressure block 7 is separated from the containing box 6, and the first spring 19 is compressed. After the spring 19 is reset, the vertical plate 16 drives the driving wheel 20 to move upward. Since the guide block 23 at the lower end of the straight groove 21 has popped out, the guide block 23 blocks the driving wheel 20 on the side away from the inclined surface at this time, and the driving wheel 20 can only enter the inclined groove 22. When the driving wheel 20 moves in the inclined groove 22, it drives the driving roller 8 to rotate. The driving roller 8 drives the driving wheel 13 to rotate through the second rotating shaft 15, and the driving wheel 13 drives the driven wheel 14 to rotate. The driven wheel 14 drives the turntable 3 to rotate through the first rotating shaft 12, and then the turntable 3 drives the containing box 6 to rotate. The detected containing box 6 moves away. When the driving wheel 20 moves to the inclined groove 2 2, it will squeeze the guide block 23 in the inclined groove 22, and then enter the straight groove 21, the guide block 23 pops out, and the subsequent containing box 6 moves to the bottom of the pressing block 7. When the detection is performed again, the cycle is repeated in the same way. When the column 30 at the bottom of the containing box 6 at the rear end of the detection contacts the convex strip 11, it will gradually rise, and then the column 30 drives the sliding block 29 to move away from the plug-in slot 28 through the driving block 32. The third spring 33 is compressed, and then the sliding block 29 drives the locking pin 31 to disengage from the locking port 27. Finally, the containing box 6 is removed for cleaning, and then a new one is fixed again. This cycle improves efficiency.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A concrete hardness detection device, comprising a frame (1) and a detection mechanism arranged at one end of the frame (1), characterized in that: The detection mechanism comprises a detection frame (2) arranged at one end of the top of the frame (1); a detection instrument (5) is arranged below the detection frame (2); a pressure block (7) for applying pressure to the concrete test block is arranged at the bottom of the detection instrument (5); a lifting frame (9) is arranged at the top of the detection instrument (5); and a cylinder (4) for driving the lifting frame (9) to move up and down is arranged at the upper end of the detection frame (2); A circular turntable (3) is rotatably connected to the upper end of the frame (1) at a position corresponding to the detection mechanism, and a holding box (6) corresponding to the pressing block (7) and used for holding the concrete test block is evenly arranged on the top periphery of the turntable (3); The machine also comprises a driving assembly which is linked with the lifting frame (9) and is used to drive the turntable (3) to rotate intermittently, the driving assembly comprising a driven wheel (14) which is rotationally connected to the bottom of the frame (1) via a first rotating shaft (12), the upper end of the first rotating shaft (12) extends to the top of the frame (1) and is fixedly connected to the turntable (3), a driving wheel (13) which is rotationally connected to the driven wheel (14) on the frame (1) on one side of the driven wheel (14) via a second rotating shaft (15), the upper end of the second rotating shaft (15) extends to the top of the frame (1) and is fixedly connected to a driving roller (8), the The side wall of the driving roller (8) is evenly provided with straight grooves (21) parallel to the axis of the driving roller (8) along the circumference of the driving roller (8), and an inclined groove (22) connected to the straight groove (21) is provided between adjacent straight grooves (21); a vertical plate (16) is provided at one end of the bottom of the lifting frame (9), and a driving wheel (20) movably matched with the straight groove (21) and the inclined groove (22) is provided on one side of the lower end of the vertical plate (16), and is configured so that when the lifting frame (9) descends, the driving wheel (20) moves downward along the straight groove (21), and when the lifting frame (9) rises, the driving wheel (20) moves upward along the inclined groove (22); The vertical plate (16) is movably connected to the lifting frame (9) via a floating assembly, and the floating assembly comprises a first mounting groove (18) arranged at the top of the vertical plate (16), and the first mounting groove (18) is movably connected to a guide plate (17), and the top of the guide plate (17) is fixedly connected to the bottom of the lifting frame (9), and a first spring (19) is vertically arranged between the bottom of the guide plate (17) and the bottom of the inner cavity of the first mounting groove (18).

2. A concrete hardness detection device according to claim 1, characterized in that: One end of the inclined groove (22) corresponds to the upper end of an adjacent straight groove (21), and the other end of the inclined groove (22) corresponds to the lower end of another adjacent straight groove (21), so that the adjacent straight grooves (21) and the inclined groove (22) form an "N"-shaped groove.

3. A concrete hardness detection device according to claim 2, characterized in that: When the driving wheel (20) moves from the lower end to the upper end of the inclined slot (22), the amplitude of rotation of the turntable (3) is the distance between the centers of two adjacent containing boxes (6).

4. A concrete hardness detection device according to claim 3, characterized in that: The inner upper end of the inclined groove (22) and the inner lower end of the straight groove (21) are both provided with a second mounting groove (24), the second mounting groove (24) being movably connected with a guide block (23), a second spring (25) being provided between the guide block (23) and the inner wall of the second mounting groove (24), and the guide block (23) protrudes from the inner walls of the straight groove (21) and the inclined groove (22) when the second spring (25) is in a reset state.

5. A concrete hardness detection device according to claim 4, characterized in that: The cross section of the guide block (23) is a right-angle trapezoid, and the guide block (23) located inside the inclined groove (22) has a sloped surface on one side facing the guide block (23), and the guide block (23) located inside the straight groove (21) has a sloped surface on one side facing the straight groove (21).

6. A concrete hardness detection device according to claim 5, characterized in that: A guide shell (10) for guiding the vertical plate (16) is fixedly connected to the top of the frame (1) at a position corresponding to the vertical plate (16); a guide groove adapted to the vertical plate (16) is provided on one side of the guide shell (10); and the lower end of the vertical plate (16) is movably connected to the inner side of the guide groove.

7. A concrete hardness detection device according to claim 1, characterized in that: The containing box (6) is connected to the rotating disk (3) via a self-locking assembly, wherein the self-locking assembly comprises a plug-in block (26) arranged at the bottom of the containing box (6), a plug-in slot (28) corresponding to the containing box (6) is arranged on the top periphery of the rotating disk (3), a locking opening (27) is arranged on one side of the plug-in block (26), an accommodating cavity (34) is arranged at one end of the inner side of the plug-in slot (28) away from the center of the rotating disk (3), a sliding block (29) is movably connected to the inner side of the accommodating cavity (34), and the sliding block A locking pin (31) corresponding to and adapted to the locking opening (27) is arranged at one end of the sliding block (29); a third spring (33) is arranged on a side of the sliding block (29) away from the locking pin (31); a driving block (32) for driving the sliding block (29) to move horizontally is arranged at the bottom of the sliding block (29); a column (30) extending below the turntable (3) is vertically fixedly connected to the bottom of the driving block (32); and a convex strip (11) corresponding to the column (30) is arranged at one end of the top of the frame (1).

8. A concrete hardness detection device according to claim 7, characterized in that: The plug-in block (26) is plug-fitted into the plug-in slot (28); The locking pin (31) is plug-fitted into the locking opening (27); The driving block (32) cooperates with the bottom inclined surface of the sliding block (29), and is configured so that when the driving block (32) rises, the sliding block (29) moves in a direction away from the insertion slot (28).

9. A concrete hardness detection device according to claim 8, characterized in that: Both ends of the convex strip (11) are sloped surfaces that smoothly transition to the top of the frame (1), and are configured so that when the column (30) moves to the highest end of the convex strip (11), one end of the locking pin (31) disengages from the locking opening (27).

Images