A concrete testing device

Abstract

The present application discloses a concrete testing device, which relates to the technical field of concrete testing, and includes a frame, a workbench installed on the top of the frame, a slump cone placed on the top of the workbench, and a mounting frame installed on the top of the workbench, wherein a driving mechanism for driving the slump cone to move vertically is installed on the mounting frame, and a measuring device is installed on the mounting frame, wherein the measuring device includes a scale installed on one side of the mounting frame, a guide rod installed in the mounting frame, a sliding sleeve connected to the guide rod along the vertical sliding, an indicating rod fixed to the outer wall of the sliding sleeve, a fixed pipe fixed to one end of the sliding sleeve and connected to the guide rod along the vertical sliding, and a fastening bolt threadedly connected to the side wall of the fixed pipe; one end of the fastening bolt abuts against the side wall of the guide rod. The present application can improve the accuracy of the slump reading value.

Description

Technical Field

[0001] The present application relates to the technical field of concrete testing, and in particular to a concrete testing device. Background Art

[0002] At present, concrete refers to artificial stone made of cement as the main cementitious material, mixed with water, sand, gravel, etc. in appropriate proportions. The slump of concrete is an important indicator to determine whether the construction can proceed normally, so the slump of concrete needs to be tested.

[0003] Currently, the slump value of concrete is mostly read by observing the scale of a steel ruler with the naked eye. However, due to the large error in naked eye observation, the slump value read is inaccurate. Summary of the invention

[0004] The present application provides a concrete testing device, which can improve the accuracy of slump reading values, and adopts the following technical solutions:

[0005] A concrete testing device comprises a frame, a workbench installed on the top of the frame, a slump cone placed on the top of the workbench and a mounting frame installed on the top of the workbench, wherein a driving mechanism for driving the slump cone to move vertically is installed on the mounting frame, and a measuring device is installed on the mounting frame, wherein the measuring device comprises a scale installed on one side of the mounting frame, a guide rod installed in the mounting frame, a sliding sleeve connected to the guide rod along the vertical sliding, an indicating rod fixed to the outer wall of the sliding sleeve, a fixing pipe fixed to one end of the sliding sleeve and connected to the guide rod along the vertical sliding, and a fastening bolt threadedly connected to the side wall of the fixing pipe; one end of the fastening bolt abuts against the side wall of the guide rod.

[0006] By adopting the above scheme, when it is necessary to detect the slump value of concrete, the indicator rod is first moved so that the indicator rod abuts against the top of the slump cone. At this time, the initial height of the concrete can be read under the action of the scale, and then the slump cone is driven upward by the driving mechanism. Next, after waiting for the concrete to collapse, the indicator rod is moved to detect the height of the concrete falling, and then the slump value of the concrete can be detected by comparing it with the initial value. In summary, the present application can improve the accuracy of the slump reading value by setting the indicator rod and the scale.

[0007] Preferably, the driving mechanism comprises a first electric push rod mounted on the top of the mounting frame and a first electromagnet fixedly connected to the piston rod of the first electric push rod; a magnetic ring is fixedly mounted on the outer wall of the top of the slump cone, and the magnetic ring matches the first electromagnet.

[0008] By adopting the above scheme, when it is necessary to drive the slump cone to move, the first electric push rod is started first, and the piston rod of the first electric push rod drives the first electromagnet to move downward. When the first electromagnet moves to contact with the magnetic ring, the first electromagnet is turned on, and then the first electromagnet and the magnetic ring are attracted. Next, the first electric push rod is started, and the piston rod of the first electric push rod drives the magnetic ring to move. The movement of the magnetic ring can drive the slump cone to move. In summary, the driving mechanism set up is convenient for driving the slump cone to move.

[0009] Preferably, a discharge mechanism is installed in the workbench, and the discharge mechanism is used to discharge the tested concrete. A receiving bucket is placed in the frame, and the receiving bucket is arranged corresponding to the discharge mechanism.

[0010] By adopting the above scheme, the unloading mechanism is provided, which is convenient for unloading the tested concrete; the receiving bucket is provided, which is convenient for collecting the tested concrete, thereby facilitating the secondary use of the tested concrete.

[0011] Preferably, the unloading mechanism includes a unloading hole opened in the workbench, two support plates hinged on both sides of the unloading hole, and two sets of driving components respectively installed on both sides of the unloading hole for driving the support plates to rotate; sealing strips are provided at the opposite ends of the two support plates.

[0012] By adopting the above scheme, in the initial state, the two support plates are firstly made horizontal by driving the rotating assembly, so that it is convenient to place the slump cone on the two support plates, and then pile concrete into the slump cone. When the slump test of the concrete is completed, the support plates are driven to rotate downward by the driving rotating assembly, and then the tested concrete will fall downward into the receiving bucket, so that the tested concrete can be unloaded; in summary, the set unloading mechanism is convenient for unloading the tested concrete.

[0013] Preferably, each group of the driving and rotating components includes a clearance groove opened on one side of the discharge hole, a second electric push rod installed in the clearance groove, and a connecting rod hinged to the piston rod of the second electric push rod; a dovetail groove is opened at the bottom of the support plate, a dovetail block is slidably connected in the dovetail groove, and one end of the connecting rod away from the second electric push rod is hinged to the bottom of the dovetail block.

[0014] By adopting the above scheme, when it is necessary to drive the support plate to rotate, the second electric push rod is started first. At this time, the piston rod of the second electric push rod drives the connecting rod to move, and the movement of the connecting rod can drive the support plate to rotate. In summary, the driving assembly is set to facilitate driving the support plate to rotate.

[0015] Preferably, a locking mechanism is installed at the opposite ends of the two support plates, and the locking mechanism includes a first accommodating groove and a second accommodating groove respectively opened at the opposite ends of the two support plates, a second electromagnet is installed in the first accommodating groove, a magnetic block is slidably connected in the second accommodating groove, and through holes for the magnetic block to pass through are opened in the two sealing strips, and the magnetic block matches the second electromagnet; first sliders are respectively fixedly connected on both sides of the magnetic block, first slide grooves are respectively opened on both sides of the second accommodating groove, two of the first sliders are respectively slidably connected to the two first slide grooves, a first spring is fixedly connected to one side of each of the first sliders, and an end of the first spring away from the first slider is fixedly connected to the inner wall of the first slide groove away from the sealing strip.

[0016] By adopting the above scheme, when the two support plates are in a horizontal state, the second electromagnet is started first. At this time, the magnetic block moves into the first receiving groove under the action of the second electromagnet, thereby preventing the two support plates from accidentally rotating and causing premature termination of concrete detection; in summary, the locking mechanism set up facilitates locking the two support plates.

[0017] Preferably, material guiding mechanisms are respectively installed on both sides of the frame, and two groups of the material guiding mechanisms are arranged corresponding to the two support plates.

[0018] By adopting the above scheme, the provided material guiding mechanism facilitates the guiding of the fragmented concrete materials on the support plate.

[0019] Preferably, the material guiding mechanism includes a fixed plate fixed to one side of the frame, a rotating plate hinged to one side of the fixed plate, a vertical plate fixed to the top of the fixed plate, and a second spring fixed between the vertical plate and the rotating plate; when the support plate rotates downward, it can push the rotating plate to rotate.

[0020] By adopting the above scheme, when the slump test of concrete is completed, the second electric push rod is started first, at which time the piston rod of the second electric push rod drives the connecting rod to move, and the connecting rod movement drives the support plate to rotate downward, and then the tested concrete will fall downward into the material receiving bucket; in addition, the support plate rotates downward to drive the rotating plate to rotate, so that the rotating plate can be tilted, and then the debris on the support plate can be introduced into the material receiving bucket through the rotating plate; in summary, the provided material guiding mechanism is convenient for guiding the debris on the support plate.

[0021] Preferably, striking mechanisms for striking the support plate are respectively installed on both sides of the discharge hole.

[0022] By adopting the above solution, the striking mechanism is provided, which facilitates the vibration of the slag on the support plate.

[0023] Preferably, each group of the striking mechanisms comprises a mounting groove provided on one side of the discharge hole, a through hole provided on one side of the mounting groove, an abutment plate slidably connected to the through hole, a horizontal rod fixedly connected to one end of the abutment plate away from the support plate, and a horizontal tube rotatably connected to the mounting groove; a plurality of spiral blocks are sequentially fixedly connected to the side wall of the horizontal rod along its circumference, a plurality of spiral grooves are sequentially provided on the inner wall of the horizontal tube along its circumference, and the plurality of spiral blocks are matched with the plurality of spiral grooves in a one-to-one correspondence; first vertical blocks are respectively fixedly connected to the two sides of the abutment plate, two second vertical blocks are installed in the mounting groove, and a third spring is fixedly connected between the first vertical block and the second vertical block; a water A flat groove, a turntable is rotatably connected in the horizontal groove, and one end of the turntable is eccentrically connected to a vertical shaft; a first bevel gear is fixedly sleeved on the outer wall of the horizontal tube, and a second bevel gear is fixedly connected to the end of the vertical shaft away from the turntable, and the first bevel gear is meshed with the second bevel gear; a knocking rod is slidably connected in the horizontal groove, a second slider is fixedly connected to the bottom of the knocking rod, and a second slide groove for the second slider to slide is opened in the horizontal groove, a fourth spring is fixedly connected to one side of the second slider, and one end of the fourth spring away from the second slider is fixedly connected to the inner wall of one end of the second slide groove; one end of the knocking rod abuts against the circumference of the turntable, and the other end can knock on one side of the support plate.

[0024] By adopting the above scheme, when the slump detection of concrete is completed, the second electric push rod is started first, at this time, the piston rod of the second electric push rod drives the connecting rod to move, the connecting rod movement drives the support plate to rotate downward, and then the detected concrete will fall downward into the receiving bucket; in addition, the support plate rotates downward to drive the abutment plate to move, and the abutment plate movement drives the horizontal rod to move. At this time, the horizontal rod drives the horizontal tube to rotate under the action of the spiral block and the spiral groove, the horizontal tube rotation drives the first bevel gear to rotate, the first bevel gear rotation drives the second bevel gear to rotate, the second bevel gear rotation drives the vertical shaft to rotate, the vertical shaft rotation drives the turntable to rotate, the turntable rotation drives the knocking rod to reciprocate, so that the slag on the support plate can be vibrated off; in summary, the provided striking mechanism is convenient for vibrating the slag on the support plate.

[0025] In summary, this application has the following beneficial effects:

[0026] 1. When the slump value of concrete needs to be detected, the indicator rod is first moved to make it abut against the top of the slump cone. At this time, the initial height of the concrete can be read under the action of the scale, and then the slump cone is driven upward by the driving mechanism. After the concrete collapses, the indicator rod is moved to detect the height of the concrete drop, and then the slump value of the concrete can be detected by comparing it with the initial value. In summary, the present application can improve the accuracy of the slump reading value by setting the indicator rod and the scale;

[0027] 2. In the initial state, the two support plates are firstly made horizontal by driving the rotating assembly, so that the slump cone is placed on the two support plates, and then concrete is piled in the slump cone. When the slump test of the concrete is completed, the support plates are driven downward by the driving rotating assembly, and then the tested concrete will fall downward into the receiving bucket, so that the tested concrete can be unloaded; in summary, the unloading mechanism is set to facilitate the unloading of the tested concrete;

[0028] 3. When the slump detection of concrete is completed, the second electric push rod is started first. At this time, the piston rod of the second electric push rod drives the connecting rod to move, and the connecting rod movement drives the support plate to rotate downward, and then the tested concrete will fall downward into the receiving bucket; in addition, the support plate rotates downward to drive the abutment plate to move, and the abutment plate movement drives the horizontal rod to move. At this time, the horizontal rod drives the horizontal tube to rotate under the action of the spiral block and the spiral groove, and the horizontal tube rotation drives the first bevel gear to rotate, and the first bevel gear rotation drives the second bevel gear to rotate, and the second bevel gear rotation drives the vertical shaft to rotate, and the vertical shaft rotation drives the turntable to rotate, and the turntable rotation drives the knocking rod to move back and forth, so that the slag on the support plate can be vibrated off; in summary, the provided striking mechanism is convenient for vibrating the slag on the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is a structural schematic diagram highlighting the unloading mechanism in the embodiment of the present application;

[0031] Figure 3 This is a structural schematic diagram highlighting the locking mechanism in the embodiment of the present application;

[0032] Figure 4 This is a structural schematic diagram highlighting the material guiding mechanism in the embodiment of the present application;

[0033] Figure 5 This is a structural diagram highlighting the striking mechanism in the embodiment of the present application;

[0034] Figure 6 This is a structural schematic diagram highlighting the connection between the horizontal rod and the horizontal tube in the embodiment of the present application.

[0035] Explanation of the reference numerals: 1. frame; 11. receiving barrel; 2. workbench; 21. slump cone; 3. mounting frame; 4. measuring device; 41. scale; 42. guide rod; 43. sleeve; 44. indicator rod; 45. fixing pipe; 46. fastening bolt; 5. driving mechanism; 51. first electric push rod; 52. first electromagnet; 53. magnetic ring; 6. unloading mechanism; 61. unloading hole; 62. support plate; 63. sealing strip; 631. perforation; 64. clearance groove; 65. second electric push rod; 66. connecting rod; 67. dovetail groove; 68. dovetail block; 7. locking mechanism; 71. first accommodating groove; 72. second accommodating groove; 721. first slide groove ;73, second electromagnet;74, magnetic block;741, first slider;75, first spring;8, material guiding mechanism;81, fixed plate;82, rotating plate;83, vertical plate;84, second spring;9, striking mechanism;91, mounting groove;911, through hole;912, second vertical block;92, abutment plate;921, first vertical block;93, horizontal rod;931, spiral block;94, horizontal tube;941, spiral groove;942, first bevel gear;95, third spring;96, horizontal groove;961, second slide groove;97, turntable;971, vertical shaft;972, second bevel gear;98, knocking rod;981, second slider;99, fourth spring. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0038] The present application discloses a concrete testing device, such as Figure 1 As shown, it includes a frame 1, a workbench 2 installed on the top of the frame 1, a slump cone 21 placed on the top of the workbench 2, and a mounting frame 3 installed on the top of the workbench 2, a driving mechanism 5 for driving the slump cone 21 to move vertically is installed on the mounting frame 3, and a measuring device 4 is installed on the mounting frame 3.

[0039] like Figure 1As shown, the measuring device 4 includes a scale 41 vertically installed on one side of the mounting frame 3, a guide rod 42 vertically installed in the mounting frame 3, a sleeve 43 vertically slidably connected to the guide rod 42, an indicator rod 44 fixed to the outer wall of the sleeve 43, a fixed tube 45 fixed to one end of the sleeve 43 and vertically slidably connected to the guide rod 42, and a fastening bolt 46 threadedly connected to the side wall of the fixed tube 45; the indicator rod 44 corresponds to the scale 41, the cross-section of the guide rod 42 is circular, which facilitates the rotation of the sleeve 43, and one end of the fastening bolt 46 abuts against the side wall of the guide rod 42. When it is necessary to detect the slump value of concrete, first move the indicator rod 44 so that the indicator rod 44 abuts against the top of the slump cone 21. At this time, the initial height of the concrete can be read under the action of the scale 41, and then the slump cone 21 is driven upward by the driving mechanism 5. Next, after waiting for the concrete to collapse, the height of the concrete drop is detected by moving the indicator rod 44, and then the slump value of the concrete can be detected by comparing it with the initial value. In summary, the present application can improve the accuracy of the slump reading value by setting the indicator rod 44 and the scale 41.

[0040] like Figure 1 As shown, the driving mechanism 5 includes two first electric push rods 51 vertically mounted on the top of the mounting frame 3 and two first electromagnets 52 respectively fixed to the piston rods of the two first electric push rods 51; the outer wall of the top of the slump cone 21 is sleeved with a magnetic ring 53 fixedly mounted, and the magnetic ring 53 matches the two first electromagnets 52. When the slump cone 21 needs to be driven to move, the first electric push rod 51 is first started, and the piston rod of the first electric push rod 51 drives the first electromagnet 52 to move downward. When the first electromagnet 52 moves to contact the magnetic ring 53, the first electromagnet 52 is turned on, and then the first electromagnet 52 and the magnetic ring 53 are attracted. Next, the first electric push rod 51 is started, and the piston rod of the first electric push rod 51 drives the magnetic ring 53 to move. The movement of the magnetic ring 53 can drive the slump cone 21 to move; in summary, the driving mechanism 5 is set to facilitate the movement of the slump cone 21.

[0041] like Figure 2 As shown, a discharge mechanism 6 is installed in the workbench 2, and the discharge mechanism 6 is used to discharge the tested concrete. A receiving bucket 11 is placed in the frame 1, and the receiving bucket 11 is arranged corresponding to the discharge mechanism 6. The set discharge mechanism 6 is convenient for discharging the tested concrete; the set receiving bucket 11 is convenient for collecting the tested concrete, so as to facilitate the secondary use of the tested concrete.

[0042] like Figure 2As shown, the unloading mechanism 6 includes a unloading hole 61 opened in the workbench 2, two support plates 62 respectively hinged on both sides of the unloading hole 61, and two sets of driving and rotating components respectively installed on both sides of the unloading hole 61 for driving the support plates 62 to rotate; the opposite ends of the two support plates 62 are provided with sealing strips 63. In the initial state, the two support plates 62 are firstly made horizontal by the driving and rotating components, so that the slump cone 21 is conveniently placed on the two support plates 62, and then concrete is piled into the slump cone 21. When the slump test of the concrete is completed, the support plates 62 are driven to rotate downward by the driving and rotating components, and then the tested concrete will fall downward into the receiving bucket 11, so that the tested concrete can be unloaded; in summary, the unloading mechanism 6 is provided to facilitate the unloading of the tested concrete.

[0043] like Figure 2 As shown, each set of driving and rotating components includes a clearance groove 64 provided on one side of the discharge hole 61, a second electric push rod 65 horizontally installed in the clearance groove 64, and a connecting rod 66 hinged to the piston rod of the second electric push rod 65; a dovetail groove 67 is provided at the bottom of the support plate 62, and a dovetail block 68 is slidably connected in the dovetail groove 67 along the length direction of the support plate 62, and one end of the connecting rod 66 away from the second electric push rod 65 is hinged to the bottom of the dovetail block 68. When it is necessary to drive the support plate 62 to rotate, the second electric push rod 65 is started first, and at this time, the piston rod of the second electric push rod 65 drives the connecting rod 66 to move, and the movement of the connecting rod 66 can drive the support plate 62 to rotate; in summary, the driving and rotating components are provided to facilitate driving the support plate 62 to rotate.

[0044] like Figure 2 and Figure 3As shown, a locking mechanism 7 is installed at the opposite ends of the two support plates 62, and the locking mechanism 7 includes a first accommodating groove 71 and a second accommodating groove 72 respectively opened at the opposite ends of the two support plates 62, a second electromagnet 73 is installed in the first accommodating groove 71, and a magnetic block 74 is slidably connected in the second accommodating groove 72 along the length direction of the support plate 62, and a through hole 631 for the magnetic block 74 to pass through is opened in the two sealing strips 63, and the magnetic block 74 matches the second electromagnet 73; first sliders 741 are fixedly connected on both sides of the magnetic block 74, and first slide grooves 721 are opened on both sides of the second accommodating groove 72, and the two first sliders 741 are slidably connected to the two first slide grooves 721 along the length direction of the support plate 62, and a first spring 75 is fixedly connected to one side of each first slider 741, and the first spring 75 is arranged along the length direction of the support plate 62, and one end of the first spring 75 away from the first slider 741 is fixedly connected to the inner wall of one end of the first slide groove 721 away from the sealing strip 63. When the two support plates 62 are in a horizontal state, the second electromagnet 73 is started first. At this time, the magnetic block 74 moves into the first receiving groove 71 under the action of the second electromagnet 73, thereby preventing the two support plates 62 from accidentally rotating and causing the concrete detection to be terminated prematurely. In summary, the locking mechanism 7 is set to facilitate locking the two support plates 62.

[0045] like Figure 2 and Figure 4 As shown, guide mechanisms 8 are respectively installed on both sides of the frame 1, and two sets of guide mechanisms 8 are arranged corresponding to two support plates 62. The arranged guide mechanisms 8 facilitate the guide of the fragmented concrete materials on the support plates 62.

[0046] like Figure 2 and Figure 4 As shown, the material guiding mechanism 8 includes a fixed plate 81 fixed to one side of the frame 1, a rotating plate 82 hinged to one side of the fixed plate 81, a vertical plate 83 fixed to the top of the fixed plate 81, and a second spring 84 fixed between the vertical plate 83 and the rotating plate 82; when the support plate 62 rotates downward, it can push the rotating plate 82 to rotate. After the slump detection of the concrete is completed, the second electric push rod 65 is started first, at which time the piston rod of the second electric push rod 65 drives the connecting rod 66 to move, and the connecting rod 66 drives the support plate 62 to rotate downward, and then the detected concrete will fall downward into the receiving barrel 11; in addition, the support plate 62 rotates downward to push the rotating plate 82 to rotate, so that the rotating plate 82 can be tilted, and then the debris on the support plate 62 can be introduced into the receiving barrel 11 through the rotating plate 82; in summary, the material guiding mechanism 8 is set to facilitate the material guiding of the debris on the support plate 62.

[0047] like Figure 2 and Figure 5As shown, striking mechanisms 9 for striking the support plate 62 are respectively installed on both sides of the discharge hole 61. The striking mechanism 9 is provided to facilitate the vibration of the slag on the support plate 62.

[0048] like Figure 2 , Figure 5 and Figure 6 As shown, each set of striking mechanisms 9 includes a mounting groove 91 opened on one side of the discharge hole 61, a through hole 911 opened on one side of the mounting groove 91, an abutment plate 92 slidably connected to the through hole 911 along the length direction of the workbench 2, a horizontal rod 93 fixed to the end of the abutment plate 92 away from the support plate 62, and a horizontal tube 94 connected to the mounting groove 91 through a bearing for horizontal rotation; the side wall of the horizontal rod 93 is sequentially fixed with a plurality of spiral blocks 931 along its circumference, and the inner wall of the horizontal tube 94 is sequentially opened with a plurality of spiral grooves 941 along its circumference, and the plurality of spiral blocks 931 are matched with the plurality of spiral grooves 941 in a one-to-one correspondence; first vertical blocks 921 are respectively fixed on both sides of the abutment plate 92, two second vertical blocks 912 are installed in the mounting groove 91, and a third spring 95 is horizontally fixed between the first vertical block 921 and the second vertical block 912; the discharge hole 6 A horizontal groove 96 is provided on one side of the horizontal groove 96, and a turntable 97 is rotatably connected in the horizontal groove 96, and one end of the turntable 97 is eccentrically connected to a vertical shaft 971; a first bevel gear 942 is fixedly mounted on the outer wall of the horizontal tube 94, and a second bevel gear 972 is fixedly connected to one end of the vertical shaft 971 away from the turntable 97, and the first bevel gear 942 is meshed with the second bevel gear 972; a knocking rod 98 is slidably connected in the horizontal groove 96, and a second slider 981 is fixedly connected to the bottom of the knocking rod 98, and a second slide groove 961 for the second slider 981 to slide is provided in the horizontal groove 96, and a fourth spring 99 is fixedly connected to one side of the second slider 981, and one end of the fourth spring 99 away from the second slider 981 is fixedly connected to the inner wall of one end of the second slide groove 961; one end of the knocking rod 98 abuts against the circumferential surface of the turntable 97, and the other end can knock on one side of the support plate 62. When the slump detection of concrete is completed, the second electric push rod 65 is started first. At this time, the piston rod of the second electric push rod 65 drives the connecting rod 66 to move. The connecting rod 66 moves to drive the support plate 62 to rotate downward, and then the detected concrete will fall downward into the receiving bucket 11; in addition, the support plate 62 rotates downward to drive the abutment plate 92 to move, and the abutment plate 92 moves to drive the horizontal rod 93 to move. At this time, the horizontal rod 93 drives the horizontal tube 94 to rotate under the action of the spiral block 931 and the spiral groove 941, and the horizontal tube 94 rotates to drive the first bevel gear 942 to rotate, and the first bevel gear 942 rotates to drive the second bevel gear 972 to rotate, and the second bevel gear 972 rotates to drive the vertical shaft 971 to rotate, and the vertical shaft 971 rotates to drive the turntable 97 to rotate, and the turntable 97 rotates to drive the knocking rod 98 to move back and forth, so that the slag on the support plate 62 can be vibrated off; in summary, the provided striking mechanism 9 is convenient for vibrating the slag on the support plate 62.

[0049] Working principle: when it is necessary to detect the slump value of concrete, first move the indicator rod 44 so that the indicator rod 44 abuts against the top of the slump cone 21. At this time, the initial height of the concrete can be read under the action of the scale 41, and then start the first electric push rod 51. At this time, the piston rod of the first electric push rod 51 drives the first electromagnet 52 to move downward, so that the first electromagnet 52 and the magnetic ring 53 can be attracted. Then start the first electric push rod 51. At this time, the first electric push rod 51 drives the slump cone 21 to move upward. Next, after waiting for the concrete to collapse, move the indicator rod 44 to detect the height of the concrete descent, and then compare it with the initial value to detect the slump value of the concrete. In summary, the present application can improve the accuracy of the slump reading value by setting the indicator rod 44 and the scale 41.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete testing device, comprising a frame (1), a workbench (2) mounted on the top of the frame (1), a slump cone (21) placed on the top of the workbench (2), and a mounting frame (3) mounted on the top of the workbench (2), characterized in that: The mounting frame (3) is provided with a driving mechanism (5) for driving the slump cone (21) to move vertically. The mounting frame (3) is provided with a measuring device (4), the measuring device (4) comprising a scale (41) mounted on one side of the mounting frame (3), a guide rod (42) mounted in the mounting frame (3), a sliding sleeve (43) vertically slidably connected to the guide rod (42), an indicating rod (44) fixed to an outer wall of the sliding sleeve (43), a fixing pipe (45) fixed to one end of the sliding sleeve (43) and vertically slidably connected to the guide rod (42), and a fastening bolt (46) threadedly connected to a side wall of the fixing pipe (45); one end of the fastening bolt (46) abuts against the side wall of the guide rod (42).

2. A concrete testing device according to claim 1, characterized in that: The driving mechanism (5) comprises a first electric push rod (51) mounted on the top of the mounting frame (3) and a first electromagnet (52) fixedly connected to the piston rod of the first electric push rod (51); a magnetic ring (53) is fixedly mounted on the outer side wall of the top of the slump cone (21), and the magnetic ring (53) matches the first electromagnet (52).

3. A concrete testing device according to claim 1, characterized in that: A discharge mechanism (6) is installed in the workbench (2), and the discharge mechanism (6) is used to discharge the tested concrete. A receiving bucket (11) is placed in the frame (1), and the receiving bucket (11) is arranged corresponding to the discharge mechanism (6).

4. A concrete testing device according to claim 3, characterized in that: The unloading mechanism (6) comprises a unloading hole (61) opened in the workbench (2), two support plates (62) respectively hinged on both sides of the unloading hole (61), and two sets of driving components respectively installed on both sides of the unloading hole (61) for driving the support plates (62) to rotate; sealing strips (63) are provided at the opposite ends of the two support plates (62).

5. A concrete testing device according to claim 4, characterized in that: Each group of the driving components comprises a clearance groove (64) provided on one side of the discharge hole (61), a second electric push rod (65) installed in the clearance groove (64), and a connecting rod (66) hinged to the piston rod of the second electric push rod (65); a dovetail groove (67) is provided at the bottom of the support plate (62), a dovetail block (68) is slidably connected in the dovetail groove (67), and one end of the connecting rod (66) away from the second electric push rod (65) is hinged to the bottom of the dovetail block (68).

6. A concrete testing device according to claim 4, characterized in that: The two support plates (62) are provided with a locking mechanism (7) at opposite ends thereof. The locking mechanism (7) comprises a first receiving groove (71) and a second receiving groove (72) respectively provided at opposite ends of the two support plates (62). A second electromagnet (73) is provided in the first receiving groove (71). A magnetic block (74) is slidably connected in the second receiving groove (72). The two sealing strips (63) are provided with a through hole (631) for the magnetic block (74) to pass through. The magnetic block (74) and the second electromagnet (73) are connected to each other in a sliding manner. The electromagnet (73) matches; first sliders (741) are fixedly connected on both sides of the magnetic block (74); first slide grooves (721) are respectively opened on both sides of the second receiving groove (72); two first sliders (741) are respectively slidably connected to the two first slide grooves (721); one side of each first slider (741) is fixedly connected to a first spring (75); one end of the first spring (75) away from the first slider (741) is fixedly connected to the inner wall of one end of the first slide groove (721) away from the sealing strip (63).

7. A concrete testing device according to claim 4, characterized in that: Material guiding mechanisms (8) are respectively installed on both sides of the frame (1), and two groups of the material guiding mechanisms (8) are arranged corresponding to the two support plates (62).

8. A concrete testing device according to claim 7, characterized in that: The material guiding mechanism (8) comprises a fixed plate (81) fixedly connected to one side of the frame (1), a rotating plate (82) hingedly connected to one side of the fixed plate (81), a vertical plate (83) fixedly connected to the top of the fixed plate (81), and a second spring (84) fixedly connected between the vertical plate (83) and the rotating plate (82); when the support plate (62) rotates downward, it can push the rotating plate (82) to rotate.

9. A concrete testing device according to claim 4, characterized in that: Striking mechanisms (9) for striking the support plate (62) are respectively installed on both sides of the discharge hole (61).

10. A concrete testing device according to claim 9, characterized in that: Each group of the striking mechanisms (9) comprises a mounting groove (91) provided on one side of the discharge hole (61), a through hole (911) provided on one side of the mounting groove (91), an abutment plate (92) slidably connected to the through hole (911), a horizontal rod (93) fixed to one end of the abutment plate (92) away from the support plate (62), and a horizontal tube (94) rotatably connected to the mounting groove (91); a plurality of spiral blocks (931) are sequentially fixed to the side wall of the horizontal rod (93) along its circumference, and the horizontal tube (94) is provided with a plurality of spiral blocks (931) which are fixed to the side wall of the horizontal rod (93) in sequence along its circumferential direction. The inner wall of the abutment plate (94) is provided with a plurality of spiral grooves (941) in sequence along its circumference, and the plurality of spiral blocks (931) are matched with the plurality of spiral grooves (941) in a one-to-one correspondence; first vertical blocks (921) are fixedly connected to both sides of the abutment plate (92), two second vertical blocks (912) are installed in the installation groove (91), and a third spring (95) is fixedly connected between the first vertical block (921) and the second vertical block (912); a horizontal groove (96) is provided on one side of the discharge hole (61) A rotating disk (97) is rotatably connected in the horizontal groove (96), and one end of the rotating disk (97) is eccentrically connected to a vertical shaft (971); a first bevel gear (942) is sleeved and fixed on the outer wall of the horizontal tube (94), and a second bevel gear (972) is fixedly connected to one end of the vertical shaft (971) away from the rotating disk (97), and the first bevel gear (942) is meshed with the second bevel gear (972); a knocking rod (98) is slidably connected in the horizontal groove (96), and the knocking rod (98) 8), a second slider (981) is fixedly connected to the bottom of the rotating disk (97), a second slide groove (961) is provided in the horizontal groove (96) for the second slider (981) to slide, a fourth spring (99) is fixedly connected to one side of the second slider (981), and one end of the fourth spring (99) away from the second slider (981) is fixedly connected to the inner wall of one end of the second slide groove (961); one end of the knocking rod (98) is in contact with the circumference of the rotating disk (97), and the other end can knock on one side of the supporting plate (62).

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