Concrete quality detector

Abstract

The utility model discloses a concrete quality detector, which belongs to the technical field of concrete quality detection and comprises a base, a detection bottom plate and a slump cone, the detection bottom plate is arranged on the base, the slump cone is arranged above the detection bottom plate, inserting and tamping supports are arranged on two sides of the detection bottom plate, inserting and tamping electric push rods are mounted in the inserting and tamping supports, and the inserting and tamping electric push rods are connected with the slump cone. A follow-up self-adjusting support is arranged at the upper end of the inserting and tamping electric push rod, a reciprocating lifting mechanism is arranged at the bottom end of the follow-up self-adjusting support, an intermittent spiral deviation mechanism is installed on the reciprocating lifting mechanism, and a triggering assembly for triggering the intermittent spiral deviation mechanism to do intermittent motion is arranged between the reciprocating lifting mechanism and the intermittent spiral deviation mechanism. According to the concrete quality detector provided by the utility model, automatic insertion and tamping can be realized, the height of the tamping rod is automatically adjusted after each insertion and tamping is completed, and the position of the tamping rod is quickly adjusted after the insertion and tamping are completed, so that the operation steps are simplified, and the next layer of sample can be conveniently inserted and tamped.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete quality detection, in particular to a concrete quality detection instrument. Background Art

[0002] Concrete is one of the most important materials in construction projects, and its quality is directly related to the structural safety of buildings. By measuring the slump of concrete, the working performance of concrete can be evaluated to ensure that the concrete has the required fluidity and easy-to-form properties during pouring and construction.

[0003] When testing the slump of concrete, the concrete mixture sample is evenly loaded into the slump cone in three layers with a small shovel, and each layer is tamped 25 times with a tamping rod, and the tamping should be carried out from the outside to the center along the spiral direction. When tamping is done manually, the force, depth and uniformity of the tamping are likely to differ, resulting in large errors in the test results. Although the existing technology can achieve automated tamping, the tamping height of the tamping rod for each layer of the mixture is different. When testing, the height of the tamping rod needs to be adjusted before tamping each layer of the concrete mixture. In addition, after tamping each layer of the sample, the tamping rod is located at the center of the slump. Before tamping the next layer of the sample, the tamping rod needs to be reset to the wall of the slump cone. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a concrete quality detector that can realize automatic tamping and automatically adjust the height of the tamping rod after each tamping is completed, and quickly adjust the position of the tamping rod after the tamping is completed, thereby simplifying the operating steps so as to facilitate the tamping of the next layer of samples.

[0005] The technical solution adopted by the utility model is as follows: A concrete quality detector provided by the utility model includes a base, a detection base plate and a slump cone, the detection base plate is arranged on the base, the slump cone is arranged above the detection base plate, the slump cone is arranged in a truncated cone shape, a tamping bracket is fixedly installed on the base, the tamping bracket is symmetrically installed on both sides of the detection base plate, a tamping electric push rod is installed in the tamping bracket, the upper end of the tamping electric push rod is provided with a follow-up self-adjusting bracket, the bottom end of the follow-up self-adjusting bracket is provided with a reciprocating lifting mechanism, an intermittent spiral offset mechanism is installed on the reciprocating lifting mechanism, a trigger component for triggering the intermittent spiral offset mechanism to perform intermittent movement is provided between the reciprocating lifting mechanism and the intermittent spiral offset mechanism, a translation sliding hole is provided at the bottom end of the intermittent spiral offset mechanism, a moving slider is slidably installed in the translation sliding hole, the intermittent spiral offset mechanism drives the moving slider to move intermittently along the spiral trajectory at equal intervals, and a quick outward moving tamping component is provided at the bottom end of the moving slider.

[0006] Furthermore, the follow-up self-adjusting bracket includes a lifting seat, a one-way bearing, a self-adjusting gear and a driven thread telescopic assembly. A self-adjusting rack is provided at the upper end of the side wall of the tamping bracket. A self-adjusting cavity is provided in the lifting seat. A self-adjusting rotating shaft that rotates and passes through the lifting seat is provided in the self-adjusting cavity. The self-adjusting gear is installed on the end of the self-adjusting rotating shaft through a one-way bearing. The self-adjusting gear is meshed with the self-adjusting rack. The driven thread telescopic assembly is provided between the lifting seat and the reciprocating lifting mechanism, and the driven thread telescopic assembly is connected to the self-adjusting rotating shaft through transmission.

[0007] Among them, the driven thread telescopic assembly includes a self-adjusting bevel gear 1, a self-adjusting bevel gear 2, a screw sleeve and a screw. The self-adjusting bevel gear 1 is coaxially fixed with the self-adjusting rotating shaft. The self-adjusting bevel gear 2 is rotatably arranged in the self-adjusting cavity. The self-adjusting bevel gear 1 and the self-adjusting bevel gear 2 are meshed. The screw sleeve is rotatably arranged on the bottom wall of the lifting seat. The self-adjusting bevel gear 2 is coaxially fixed with the screw sleeve. The side wall of the reciprocating lifting mechanism is provided with an extension plate. The screw is fixedly installed on the upper wall of the extension plate, and the screw is threadedly connected to the screw sleeve.

[0008] Preferably, the trigger assembly includes a trigger gear, a one-way bearing and a trigger rack. A trigger bracket with an inverted L-shape is provided on one side of the reciprocating lifting mechanism. The trigger rack is arranged on the side wall of the trigger bracket. The trigger gear is installed on the side wall of the intermittent spiral offset mechanism through a one-way bearing. The trigger gear is transmission-connected to the intermittent spiral offset mechanism through the one-way bearing, and the trigger gear is meshed with the trigger rack.

[0009] Furthermore, the rapid outward movement and tamping assembly includes a fixed plate, an outward movement rotating plate, an outward movement motor, a mounting seat and a tamping rod body, a fixed column is provided at the center of the bottom wall of the movable slider, one end of the fixed plate is fixedly installed on the bottom end of the fixed column, and the other end of the fixed plate is rotatably provided with an outward movement rotating shaft, the middle part of the outward movement rotating plate is fixedly connected with the outward movement rotating shaft, the outward movement motor is provided on the fixed plate, the outward movement motor is connected to the outward movement rotating shaft, the mounting seat is provided on the bottom wall of one end of the outward movement rotating plate, the tamping rod body is provided at the bottom of the outward movement rotating plate through the mounting seat, the axis length of the tamping rod body to the outward movement rotating shaft is equal to the axis length of the outward movement rotating shaft to the fixed column, pressure sensor 1 and pressure sensor 2 are respectively provided on both sides of the movable slider, and a controller is provided in the intermittent spiral offset mechanism, and the controller is electrically connected to pressure sensor 1, pressure sensor 2 and the outward movement motor, respectively.

[0010] Furthermore, the ratio of the diameter of the rotation trajectory of the tamping rod body around the outer rotation axis to the diameter of the upper opening of the slump cone is 23:48, and the ratio of the length of the moving slider moving along the radial direction of the slump cone each time to the diameter of the upper opening of the slump cone is 1:48.

[0011] Among them, the reciprocating lifting mechanism includes a mounting bracket, a driving motor, a lifting reciprocating screw and a threaded slider matched with the lifting reciprocating screw. The bottom end of the mounting bracket is provided with a vertically arranged reciprocating slide frame, the extension plate is arranged on the side wall of the reciprocating slide frame, the lifting reciprocating screw is rotatably arranged in the reciprocating slide frame, the side wall of the lifting reciprocating screw is provided with two thread grooves with the same pitch and opposite rotation direction, and the two ends of the two thread grooves are connected by a transition curve. The driving motor is arranged on the mounting bracket, the driving motor is connected to the lifting reciprocating screw, the threaded slider is slidably engaged with the reciprocating slide frame, the threaded slider is connected to the intermittent spiral offset mechanism, and the reciprocating slide frame guides and limits the threaded slider.

[0012] Furthermore, the intermittent spiral offset mechanism includes a fixed seat, a rotating drum, a rotating assembly and a synchronous translation assembly, the side wall of the fixed seat is connected to the threaded slider, a transmission cavity is provided in the fixed seat, a fixed disk is fixedly installed at the bottom of the fixed seat, the rotating drum is coaxially rotatably connected with the fixed disk, the rotating assembly is arranged in the transmission cavity, the rotating assembly transmission is arranged between the trigger gear and the rotating drum, the rotating assembly drives the rotating drum to rotate around the fixed seat, the synchronous translation assembly is arranged in the rotating drum, the translation slide hole is penetrated through the bottom wall of the rotating drum, the synchronous translation assembly is connected to the moving slider, the synchronous translation assembly drives the moving slider to slide along the translation slide hole, so that the moving slider rotates with the rotating drum and slides along the translation slide hole to perform spiral movement, and the controller is arranged in the rotating drum.

[0013] Furthermore, the rotating assembly includes a transmission shaft, a rotating bevel gear 1, a rotating bevel gear 2, an internal gear and an internal gear ring. The transmission shaft rotates and penetrates the side wall of the fixed seat. The trigger gear is installed on the transmission shaft through a one-way bearing 2. The rotating bevel gears are coaxially fixedly arranged on the transmission shaft and arranged in the transmission cavity. The rotating bevel gear 2 is rotatably arranged on the bottom wall of the transmission cavity. The rotating bevel gear 1 and the rotating bevel gear 2 are meshed. The internal gear is rotatably arranged on the bottom wall of the fixed seat. The internal gear is coaxially fixedly connected to the rotating bevel gear 2. The internal gear ring is coaxially fixedly connected to the rotating bevel gear 2. It is fixedly connected to the upper end of the rotating drum, and the inner wall of the inner gear ring is provided with gear teeth. The internal gear is meshed with the gear teeth on the inner side of the internal gear ring. The one-way bearing 2 can rotate freely when the trigger gear rotates forward, and is locked when the trigger gear rotates reversely. When the trigger gear moves up along the trigger rack, the trigger gear rotates reversely. At this time, the one-way bearing 2 is locked, and the trigger gear drives the transmission shaft to rotate, and the transmission shaft drives the rotating bevel gear 1 to rotate. The rotating bevel gear 1 drives the internal gear to rotate through the rotating bevel gear 2, and the internal gear drives the internal gear ring to rotate, and the internal gear ring drives the rotating drum to rotate.

[0014] Furthermore, the synchronous translation assembly includes a fixed gear, a driven gear, a translation bevel gear 1, a translation bevel gear 2, and a translation reciprocating screw rod. A through hole is provided on the upper wall of the rotating drum. The fixed gear is coaxially fixedly installed on the bottom wall of the fixed disk. A ring plate is provided inside the rotating drum. The fixed disk is provided between the ring plate and the inner gear ring. The driven gear is rotatably provided on the bottom wall of the ring plate. The driven gear meshes with the fixed gear. The translation bevel gear is coaxially fixedly provided below the driven gear. The translation bevel gear 2 is rotatably provided on the inner side wall of the rotating drum. The translation reciprocating screw rod is coaxially fixed with the translation bevel gear. The side wall of the translation reciprocating screw rod is provided with two thread grooves with the same pitch and opposite rotation direction. The two ends of the thread grooves are connected by a transition curve. The upper wall of the movable slider is provided with a threaded slide seat. The threaded slide seat is threadedly connected to the translation reciprocating screw rod. The ratio of the length of a single sliding stroke of the threaded slide seat to the diameter of the upper end opening of the slump cone is 25:48. The threaded slide seat drives the tamping rod body to be evenly inserted and tamped along a spiral trajectory from the inner wall edge of the slump cone to the middle.

[0015] Preferably, at least two groups of driven thread telescopic components are provided between the lifting seat and the intermittent spiral offset mechanism.

[0016] Preferably, the base is provided with a guide rail, the detection base plate is provided with a guide slider slidably connected to the guide rail, and the detection base plate is slidably arranged on the base through the guide slider and the guide rail.

[0017] Preferably, positioning shafts are symmetrically provided on the detection bottom plate, positioning plates are symmetrically provided on both sides of the slump cone, and positioning holes are provided on the positioning plates, so that the slump cone can be easily aligned with the axis of the rotating drum through the positioning holes and the positioning shafts.

[0018] The beneficial effects achieved by the utility model using the above structure are as follows:

[0019] 1. Through the coordinated cooperation of the reciprocating lifting mechanism, the trigger assembly and the intermittent spiral offset mechanism, the reciprocating lifting mechanism drives the intermittent spiral offset mechanism and the trigger gear to move up once each time, and the trigger gear drives the rotating drum to rotate once at equal angles through the rotating assembly, and drives the moving slider to slide once at equal intervals along the translation slide hole through the synchronous translation assembly, so as to synchronously realize the intermittent equal-angle rotation of the rotating drum and the intermittent equal-distance sliding of the moving slider, thereby realizing the equal-distance intermittent movement of the tamping rod body along the spiral path, and the reciprocating lifting mechanism drives the tamping rod body to move down and tamp and the tamping rod body to deflect at equal intervals alternately, so as to realize the uniform tamping of the concrete sample along the spiral path, and the force, depth and uniformity of each tamping are the same, so as to ensure the accuracy of the test results.

[0020] 2. The reciprocating lifting mechanism, trigger assembly and intermittent spiral offset mechanism only need to be provided with one drive, thus reducing energy consumption and cost.

[0021] 3. When the electric push rod drives the lifting seat to move upward, the distance between the lifting seat and the reciprocating lifting mechanism is automatically shortened through the follow-up self-adjusting bracket. After the tamping of each layer of concrete mixture is completed, the height of the tamping rod is automatically adjusted to facilitate the tamping of the next layer of concrete sample.

[0022] 4. A fast outward tamping assembly is provided. After the tamping is completed, the moving slider fits with the end of the translational sliding hole, thereby triggering the outward motor to rotate 180° when the pressure sensor 1 or the pressure sensor 2 is triggered. The outward motor drives the outward rotating plate to rotate 180° via the outward rotating shaft, so that the tamping rod body can quickly rotate from the center of the slump cone to the wall on the other side of the slump cone. After the tamping of each layer of concrete samples is completed, the position of the tamping rod body is automatically adjusted to facilitate the tamping of the next layer of concrete samples, ensuring that each layer of samples can be tamped from the edge of the slump cone to the center.

[0023] 5. With the help of the translation reciprocating screw rod, the moving slider can be automatically reversed so as to carry out ramming tests on different layers of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural schematic diagram of a concrete quality detector provided by the utility model;

[0025] Figure 2 A structural schematic diagram of a concrete quality detector provided by the utility model from another perspective;

[0026] Figure 3 A schematic diagram of the combined structure of the follow-up self-adjusting bracket, the reciprocating lifting mechanism, the intermittent spiral offset mechanism and the fast outward moving tamping assembly provided by the utility model;

[0027] Figure 4 A cross-sectional view of the follow-up self-adjusting bracket and the reciprocating lifting mechanism provided by the utility model;

[0028] Figure 5 An exploded view of the intermittent spiral offset mechanism and the rapid outward movement tamping assembly provided by the utility model;

[0029] Figure 6 A schematic diagram of the combined structure of the intermittent spiral offset mechanism and the rapid outward movement tamping assembly provided by the utility model;

[0030] Figure 7 A cross-sectional view of the intermittent spiral offset mechanism provided by the utility model;

[0031] Figure 8 A schematic diagram of the structure of a rapid outward-moving tamping assembly provided by the utility model;

[0032] Fig. 9This is a schematic diagram of the combined structure of the detection base plate and the slump cone provided by the utility model.

[0033] Among them, 1. base, 2. detection base plate, 3. slump cone, 4. ramming bracket, 5. ramming electric push rod, 6. follow-up self-adjusting bracket, 7. reciprocating lifting mechanism, 8. intermittent spiral offset mechanism, 9. translation slide hole, 10. moving slider, 11. fast outward ramming assembly, 12. lifting seat, 13. one-way bearing 1, 14. self-adjusting gear, 15. driven thread telescopic assembly, 16. self-adjusting rack, 17. self-adjusting cavity, 18. self-adjusting shaft, 19. self-adjusting bevel gear 1, 20. self-adjusting bevel gear 2, 21. screw sleeve, 22. screw, 23. trigger gear, 24. one-way bearing 2, 25. trigger rack, 26. trigger bracket, 27. fixed plate, 28. outward shift plate, 29. outward shift motor, 30. mounting seat, 3 1. tamping rod body, 32. fixed column, 33. outward movement shaft, 34. pressure sensor 1, 35. pressure sensor 2, 36. controller, 37. guide rail, 38. guide slider, 39. mounting bracket, 40. driving motor, 41. lifting reciprocating screw rod, 42. threaded slider, 43. reciprocating slide frame, 44. fixed seat, 45. rotating drum, 46. positioning hole, 47. positioning plate, 48. transmission cavity, 49. fixed plate, 50. transmission shaft, 51. rotating bevel gear 1, 52. rotating bevel gear 2, 53. internal gear, 54. internal gear ring, 55. fixed gear, 56. driven gear, 57. translation bevel gear 1, 58. translation bevel gear 2, 59. translation reciprocating screw rod, 60. through hole, 61. ring plate, 62. positioning shaft.

[0034] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] like Figure 1-Figure 9 As shown, a concrete quality detector provided by the utility model comprises a base 1, a detection base plate 2 and a slump cone 3, the detection base plate 2 is arranged on the base 1, the slump cone 3 is arranged above the detection base plate 2, the slump cone 3 is arranged in a truncated cone shape, a tamping bracket 4 is fixedly installed on the base 1, the tamping bracket 4 is symmetrically installed on both sides of the detection base plate 2, a tamping electric push rod 5 is installed in the tamping bracket 4, the upper end of the tamping electric push rod 5 is provided with a follow-up self-adjusting bracket 6, the bottom end of the follow-up self-adjusting bracket 6 is provided with a reciprocating lifting mechanism 7, an intermittent spiral offset mechanism 8 is installed on the reciprocating lifting mechanism 7, a trigger component for triggering the intermittent spiral offset mechanism 8 to perform intermittent movement is provided between the reciprocating lifting mechanism 7 and the intermittent spiral offset mechanism 8, a translation sliding hole 9 is provided at the bottom end of the intermittent spiral offset mechanism 8, a moving slider 10 is slidably installed in the translation sliding hole 9, the intermittent spiral offset mechanism 8 drives the moving slider 10 to move intermittently along the spiral trajectory at equal intervals, and a fast outward moving tamping component 11 is provided at the bottom end of the moving slider 10.

[0038] See also Figure 1 and Fig. 9 The detection base plate 2 is symmetrically provided with positioning shafts 62, and the slump cone 3 is symmetrically provided with positioning plates 47 on both sides. The positioning plates 47 are provided with positioning holes 46. The positioning holes 46 and the positioning shafts 62 facilitate the alignment of the slump cone 3 with the axis of the intermittent spiral offset mechanism 8.

[0039] The base 1 is provided with a guide rail 37 , the detection base plate 2 is provided with a guide slider 38 slidably connected to the guide rail 37 , and the detection base plate 2 is slidably arranged on the base 1 via the guide slider 38 and the guide rail 37 .

[0040] like Figure 1-Figure 4As shown, the follow-up self-adjusting bracket 6 includes a lifting seat 12, a one-way bearing 13, a self-adjusting gear 14 and a driven thread telescopic assembly 15. The upper end of the side wall of the tamping bracket 4 is provided with a self-adjusting rack 16. The lifting seat 12 is provided with a self-adjusting cavity 17. The self-adjusting cavity 17 is provided with a self-adjusting rotating shaft 18 that rotates and passes through the lifting seat 12. The self-adjusting gear 14 is installed on the end of the self-adjusting rotating shaft 18 through the one-way bearing 13. The self-adjusting gear 14 is meshed with the self-adjusting rack 16. The driven thread telescopic assembly 15 is provided between the lifting seat 12 and the reciprocating lifting mechanism 7, and the driven thread telescopic assembly 15 is connected to the self-adjusting rotating shaft 18 in transmission. In this embodiment, two groups of driven thread telescopic assemblies 15 are provided between the lifting seat 12 and the intermittent spiral offset mechanism 8.

[0041] The driven thread telescopic assembly 15 includes a self-adjusting bevel gear 19, a self-adjusting bevel gear 20, a screw sleeve 21 and a screw 22. The self-adjusting bevel gear 19 is coaxially fixedly connected to the self-adjusting rotating shaft 18. The self-adjusting bevel gear 20 is rotatably arranged in the self-adjusting cavity 17. The self-adjusting bevel gear 19 and the self-adjusting bevel gear 20 are meshed. The screw sleeve 21 is rotatably arranged on the bottom wall of the lifting seat 12. The self-adjusting bevel gear 20 is coaxially fixedly connected to the screw sleeve 21. The side wall of the reciprocating lifting mechanism 7 is provided with an extension plate. The screw 22 is fixedly installed on the upper wall of the extension plate, and the screw 22 is threadedly connected to the screw sleeve 21.

[0042] The trigger assembly includes a trigger gear 23, a one-way bearing 24 and a trigger rack 25. A trigger bracket 26 with an inverted L shape is provided on one side of the reciprocating lifting mechanism 7. The trigger rack 25 is arranged on the side wall of the trigger bracket 26. The trigger gear 23 is installed on the side wall of the intermittent spiral offset mechanism 8 through the one-way bearing 24. The trigger gear 23 is transmission-connected to the intermittent spiral offset mechanism 8 through the one-way bearing 24, and the trigger gear 23 is meshed with the trigger rack 25.

[0043] The reciprocating lifting mechanism 7 includes a mounting bracket 39, a driving motor 40, a lifting reciprocating screw rod 41 and a threaded slider 42 matched with the lifting reciprocating screw rod 41. The bottom end of the mounting bracket 39 is provided with a vertically arranged reciprocating slide frame 43, the extension plate is arranged on the side wall of the reciprocating slide frame 43, the lifting reciprocating screw rod 41 is rotatably arranged in the reciprocating slide frame 43, the side wall of the lifting reciprocating screw rod 41 is provided with two thread grooves with the same pitch and opposite rotation direction, and the two ends of the two thread grooves are connected by a transition curve, the driving motor 40 is arranged on the mounting bracket 39, the driving motor 40 is connected to the lifting reciprocating screw rod 41, the threaded slider 42 is slidably engaged with the reciprocating slide frame 43, and the threaded slider The block 42 is connected to the intermittent spiral offset mechanism 8, and the reciprocating slide frame 43 guides and limits the threaded slider 42. The driving motor 40 drives the lifting reciprocating screw rod 41 to rotate. The lifting reciprocating screw rod 41 drives the intermittent spiral offset mechanism 8 to slide back and forth periodically up and down through the threaded slider 42, so that when the trigger gear 23 moves up along the trigger rack 25, the trigger gear 23 rotates while moving up, and the trigger gear 23 drives the fast outward movement and tamping assembly 11 to move along the spiral trajectory through the intermittent spiral offset mechanism 8. When the trigger gear 23 moves up to the bottom end of the trigger rack 25, the fast outward movement and tamping assembly 11 moves up and away from the sample, ensuring that the fast outward movement and tamping assembly 11 does not contact the concrete sample when moving.

[0044] See also Figure 1 , Figure 3-Figure 8 The intermittent spiral offset mechanism 8 includes a fixed seat 44, a rotating drum 45, a rotating assembly and a synchronous translation assembly. The side wall of the fixed seat 44 is connected to the threaded slider 42. A transmission cavity 48 is provided in the fixed seat 44. A fixed disk 49 is fixedly installed at the bottom of the fixed seat 44. The rotating drum 45 is coaxially rotatably connected with the fixed disk 49. The rotating assembly is arranged in the transmission cavity 48. The rotating assembly transmission is arranged between the trigger gear 23 and the rotating drum 45. The rotating assembly drives the rotating drum 45 to rotate around the fixed seat 44. The synchronous translation assembly is arranged in the rotating drum 45. The translation slide hole 9 is penetrated through the bottom wall of the rotating drum 45. The synchronous translation assembly is connected to the moving slider 10. The synchronous translation assembly drives the moving slider 10 to slide along the translation slide hole 9, so that the moving slider 10 rotates with the rotating drum 45 while sliding along the translation slide hole 9 to perform spiral movement.

[0045] The rotating assembly includes a transmission shaft 50, a rotating bevel gear 1 51, a rotating bevel gear 2 52, an internal gear 53 and an internal gear ring 54. The transmission shaft 50 rotates and penetrates the side wall of the fixed seat 44. The trigger gear 23 is installed on the transmission shaft 50 through the one-way bearing 24. The rotating bevel gear 1 51 is coaxially fixedly arranged on the transmission shaft 50 and arranged in the transmission cavity 48. The rotating bevel gear 2 52 is rotatably arranged on the bottom wall of the transmission cavity 48. The rotating bevel gear 1 51 and the rotating bevel gear 2 52 are meshed. The internal gear 53 is rotatably arranged on the bottom wall of the fixed seat 44. The internal gear 53 is coaxially fixedly connected to the rotating bevel gear 2 52. The internal gear ring 54 is coaxially fixedly connected to the rotating bevel gear 2 52. It is arranged at the upper end of the rotating drum 45, and the inner wall of the inner gear ring 54 is provided with gear teeth. The internal gear 53 is meshed with the inner gear teeth of the internal gear ring 54. The one-way bearing 24 can rotate freely when the trigger gear 23 rotates forward, and is locked when the trigger gear 23 rotates reversely. When the trigger gear 23 moves up along the trigger rack 25, the trigger gear 23 rotates reversely. At this time, the one-way bearing 24 is locked, and the trigger gear 23 drives the transmission shaft 50 to rotate, and the transmission shaft 50 drives the rotating bevel gear 1 51 to rotate, and the rotating bevel gear 1 51 drives the internal gear 53 to rotate through the rotating bevel gear 2 52, and the internal gear 53 drives the internal gear ring 54 to rotate, and the internal gear ring 54 drives the rotating drum 45 to rotate.

[0046] The synchronous translation assembly includes a fixed gear 55, a driven gear 56, a translation bevel gear 1 57, a translation bevel gear 2 58 and a translation reciprocating screw 59. The upper wall of the rotating cylinder 45 is provided with a through hole 60. The fixed gear 55 is coaxially fixedly installed on the bottom wall of the fixed disk 49. A ring plate 61 is provided inside the rotating cylinder 45. The fixed disk 49 is provided between the ring plate 61 and the inner gear ring 54. The driven gear 56 is rotatably provided on the bottom wall of the ring plate 61. The driven gear 56 is meshed with the fixed gear 55. The translation bevel gear 1 57 is coaxially fixedly provided on the driven gear 55. Below the gear 56, the translation bevel gear 2 58 is rotatably arranged on the inner wall of the rotating drum 45, and the translation reciprocating screw rod 59 is coaxially fixedly connected with the translation bevel gear 2 58. The side wall of the translation reciprocating screw rod 59 is provided with two thread grooves with the same pitch and opposite rotation direction, and the two ends of the two thread grooves are connected by a transition curve. The upper wall of the movable slider 10 is provided with a threaded slide seat, and the threaded slide seat is threadedly connected with the translation reciprocating screw rod 59. The threaded slide seat drives the fast outward moving tamping assembly 11 to tamp evenly along the spiral trajectory from the inner wall edge of the slump cone 3 to the middle.

[0047] The fast outward movement and tamping assembly 11 includes a fixed plate 27, an outward movement transfer plate 28, an outward movement motor 29, a mounting seat 30 and a tamping rod body 31. A fixed column 32 is provided at the center of the bottom wall of the movable slider 10. One end of the fixed plate 27 is fixedly installed at the bottom end of the fixed column 32. The other end of the fixed plate 27 is rotatably provided with an outward movement shaft 33. The middle part of the outward movement transfer plate 28 is fixedly connected to the outward movement shaft 33. The outward movement motor 29 is provided on the fixed plate 27. The outward movement motor 29 is connected to the outward movement shaft 33. The mounting seat 30 is arranged on the bottom wall of one end of the outward moving transfer plate 28, and the tamping rod body 31 is arranged at the bottom of the outward moving transfer plate 28 through the mounting seat 30. The axial length from the axis of the tamping rod body 31 to the outward moving rotation shaft 33 is equal to the axial length from the axis of the outward moving rotation shaft 33 to the fixed column 32. Pressure sensor 1 34 and pressure sensor 2 35 are respectively provided on both sides of the movable slider 10, and a controller 36 is provided in the rotating drum 45. The controller 36 is electrically connected to pressure sensor 1 34, pressure sensor 2 35 and the outward moving motor 29 respectively.

[0048] The ratio of the length of a single sliding stroke of the threaded slide to the diameter of the upper opening of the slump cone 3 is 25:48, the ratio of the diameter of the rotation trajectory of the tamper body 31 around the outer rotation axis 33 to the diameter of the upper opening of the slump cone 3 is 23:48, and the ratio of the length of each radial movement of the movable slider 10 along the slump cone 3 to the diameter of the upper opening of the slump cone 3 is 1:48.

[0049] When in use, align the positioning hole 46 with the positioning shaft 62, then install the slump cone 3 on the detection base plate 2, load the first layer of concrete sample into the slump cone 3, and then push the detection base plate 2 to the bottom of the intermittent spiral offset mechanism 8. In the initial state, the tamping electric push rod 5 is in an extended state, the lifting seat 12 is at the highest point, the intermittent spiral offset mechanism 8 is at the highest point of the reciprocating lifting mechanism 7, the moving slider 10 is arranged at one end of the translation sliding hole 9 close to the edge of the slump cone 3, and at this time, the tamping rod body 31 is coaxially arranged below the fixed column 32, and then the tamping electric push rod 5 is controlled to move downward, driving the follow-up self-adjusting bracket 6, the reciprocating lifting mechanism 7, the intermittent spiral offset mechanism 8 and the fast outward tamping assembly 11 to move downward synchronously, and the tamping rod body 31 Insert it down along the edge of the slump cone 3 into the slump cone 3. When the follow-up self-adjusting bracket 6 moves down, the self-adjusting gear 14 moves down along the self-adjusting rack 16, the self-adjusting gear 14 rotates forward, and the one-way bearing 13 rotates freely. At this time, the self-adjusting shaft 18 is stationary, so that the follow-up self-adjusting bracket 6 will not be triggered. Then start the driving motor 40, and the driving motor 40 drives the lifting reciprocating screw rod 41 to rotate. The lifting reciprocating screw rod 41 drives the intermittent spiral offset mechanism 8 to slide back and forth periodically up and down through the threaded slider 42. In one lifting cycle, the lifting reciprocating screw rod 41 drives the intermittent spiral offset mechanism 8 to move down first and then up through the threaded slider 42. When moving down, the trigger gear 23 moves down along the trigger rack 25, the trigger gear 23 rotates forward, and the one-way bearing 24 rotates freely. The intermittent spiral offset mechanism 8 is freely rotated. At this time, the transmission shaft 50 is stationary, so that the intermittent spiral offset mechanism 8 will not be triggered. The reciprocating lifting mechanism 7 drives the intermittent spiral offset mechanism 8 and the tamping rod body 31 to move downward synchronously. The tamping rod body 31 is inserted downward along the edge of the slump cone 3 to tamp the first layer of concrete sample. When the intermittent spiral offset mechanism 8 moves upward, it first drives the tamping rod body 31 to be pulled out of the concrete sample. Before the trigger gear 23 moves up to the bottom end of the trigger rack 25, the tamping rod body 31 is completely pulled out of the sample. When the trigger gear 23 moves up and meshes with the trigger rack 25, as the trigger gear 23 continues to move up, the trigger rack 25 drives the trigger gear 23 to rotate in the opposite direction. The trigger gear 23 rotates while moving up. At this time, the one-way bearing 24 is locked, and the trigger gear 23 The transmission shaft 50 is driven to rotate, and the transmission shaft 50 drives the rotating bevel gear 1 51 to rotate. The rotating bevel gear 1 51 drives the internal gear 53 to rotate through the rotating bevel gear 2 52. The internal gear 53 drives the internal gear ring 54 to rotate. The internal gear ring 54 drives the rotating drum 45 to rotate a certain angle. Since the fixed gear 55 remains fixed, when the rotating drum 45 rotates, it drives the driven gear 56 to rotate around the fixed gear 55. The fixed gear 55 drives the driven gear 56 to rotate. The driven gear 56 drives the translation bevel gear 1 57 to rotate. The translation bevel gear 1 57 drives the translation reciprocating screw rod 59 to rotate through the translation bevel gear 2 58. The translation reciprocating screw rod 59 drives the moving slider 10 to slide a certain distance along the translation slide hole 9 through the threaded slide seat. Under the joint action of the rotating drum 45 and the moving slider 10,The tamping rod body 31 moves along the spiral trajectory to the next tamping point; the reciprocating lifting mechanism 7 drives the intermittent spiral offset mechanism 8 and the trigger gear 23 to move up once, and the trigger gear 23 drives the rotating drum 45 to rotate once at an equal angle through the rotating component, and drives the moving slider 10 to slide once at an equal distance along the translation slide hole 9 through the synchronous translation component, synchronously realizing the intermittent equal-angle rotation of the rotating drum 45 and the intermittent equidistant sliding of the moving slider 10, thereby realizing the spiral trajectory movement of the tamping rod body 31, so that the reciprocating lifting mechanism 7 completes one tamping and drives the tamping rod body 31 to move to the next tamping point along the spiral trajectory each time it is lifted and lowered. Since the ratio of the length of the single-trip sliding stroke of the threaded slide seat to the diameter of the upper end opening of the slump cone 3 is 25:48, and the moving slider 10 The length of each radial movement along the slump cone 3 is 1 / 48 of the diameter of the opening at the upper end of the slump cone 3. Therefore, the reciprocating lifting mechanism 7 is lifted and lowered 25 times to drive the threaded slide to complete a single sliding stroke. In the single sliding stroke of the threaded slide, the tamping rod body 31 is lifted and inserted 25 times from the edge of the slump cone 3 to the center at equal intervals along the spiral trajectory, and after the 24th lifting and lowering is completed, the tamping rod body 31 moves to the center of the slump cone 3. During the 25th lifting and lowering, the intermittent spiral offset mechanism 8 first drives the tamping rod body 31 to move downward to insert and tamp the center of the slump cone 3, and then moves upward to drive the tamping rod body 31 to move out of the concrete sample and then offset the center of the slump cone 3 again. When the 25th lifting and lowering is completed, the ratio of the length of the tamping rod body 31 to both sides of the slump cone 3 is The ratio of the diameter of the rotation track of the tamping rod body 31 around the outer movement shaft 33 to the diameter of the upper opening of the slump cone 3 is 23:48, and the length from the axis of the tamping rod body 31 to the axis of the outer movement shaft 33 is equal to the length from the axis of the outer movement shaft 33 to the axis of the fixed column 32. Therefore, at this time, the tamping rod body 31 rotates from the bottom end of the fixed column 32 to the wall of the other side of the slump cone 3, and then controls the tamping electric push rod 5 to move up and down. The self-adjusting bracket 6, the reciprocating lifting mechanism 7, the intermittent spiral offset mechanism 8 and the fast outward moving tamping assembly 11 are synchronously moved upward and completely withdrawn from the slump cone 3. When moving upward, the self-adjusting gear 14 moves upward along the self-adjusting rack 16, and the self-adjusting gear 14 rotates in the opposite direction. At this time, the one-way bearing 13 is locked, and the self-adjusting gear 14 drives the self-adjusting rotating shaft 18 to rotate. The self-adjusting rotating shaft 18 drives the screw sleeve 21 to rotate through the self-adjusting bevel gear 19 and the self-adjusting bevel gear 20. The screw sleeve 21 drives the screw rod 22 to move upward, and the screw rod 22 drives the reciprocating lifting mechanism 7, the intermittent spiral offset mechanism 8 and the fast outward moving tamping assembly 11 to move up to a certain height, so as to facilitate the tamping of the next layer of concrete samples, and then repeat the above operations to complete the loading and tamping of each layer of concrete samples.After all the loading and tamping are completed, the lifting seat 12 is moved up to the highest point again by the tamping electric push rod 5, and then the detection base plate 2 is moved out from under the intermittent spiral offset mechanism 8, and then the slump cone 3 is lifted vertically and slowly within 5-10 seconds. The concrete collapses due to its own weight, and then the measurement tool can be used for measurement.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A concrete quality detector, comprising a base, a detection bottom plate and a slump cone, characterized in that: The detection base plate is arranged on the base, the slump cone is arranged above the detection base plate, a tamping bracket is fixedly installed on the base, the tamping bracket is symmetrically installed on both sides of the detection base plate, a tamping electric push rod is installed in the tamping bracket, the upper end of the tamping electric push rod is provided with a follow-up self-adjusting bracket, the bottom end of the follow-up self-adjusting bracket is provided with a reciprocating lifting mechanism, an intermittent spiral offset mechanism is installed on the reciprocating lifting mechanism, a trigger component for triggering the intermittent spiral offset mechanism to perform intermittent movement is provided between the reciprocating lifting mechanism and the intermittent spiral offset mechanism, a translation slide hole is provided at the bottom end of the intermittent spiral offset mechanism, a moving slider is slidably installed in the translation slide hole, the intermittent spiral offset mechanism drives the moving slider to move equidistantly and intermittently along the spiral trajectory, and a quick outward tamping component is provided at the bottom end of the moving slider.

2. A concrete quality detector according to claim 1, characterized in that: The follow-up self-adjusting bracket includes a lifting seat, a one-way bearing, a self-adjusting gear and a driven thread telescopic assembly. A self-adjusting rack is provided at the upper end of the side wall of the tamping bracket. A self-adjusting cavity is provided in the lifting seat. A self-adjusting rotating shaft that rotates and passes through the lifting seat is provided in the self-adjusting cavity. The self-adjusting gear is installed on the end of the self-adjusting rotating shaft through a one-way bearing. The self-adjusting gear is meshed with the self-adjusting rack. The driven thread telescopic assembly is provided between the lifting seat and the reciprocating lifting mechanism. The driven thread telescopic assembly is connected to the self-adjusting rotating shaft in a transmission manner.

3. A concrete quality detector according to claim 2, characterized in that: The driven thread telescopic assembly includes a self-adjusting bevel gear 1, a self-adjusting bevel gear 2, a screw sleeve and a screw rod. The self-adjusting bevel gear 1 is coaxially fixedly connected to the self-adjusting rotating shaft. The self-adjusting bevel gear 2 is rotatably arranged in the self-adjusting cavity. The self-adjusting bevel gear 1 and the self-adjusting bevel gear 2 are meshed. The screw sleeve is rotatably arranged on the bottom wall of the lifting seat. The self-adjusting bevel gear 2 is coaxially fixedly connected to the screw sleeve. An extension plate is provided on the side wall of the reciprocating lifting mechanism. The screw rod is fixedly installed on the upper wall of the extension plate, and the screw and the screw sleeve are threadedly connected.

4. A concrete quality detector according to claim 3, characterized in that: The trigger assembly includes a trigger gear, a one-way bearing and a trigger rack. A trigger bracket with an inverted L shape is provided on one side of the reciprocating lifting mechanism. The trigger rack is arranged on the side wall of the trigger bracket. The trigger gear is installed on the side wall of the intermittent spiral offset mechanism through the one-way bearing. The trigger gear is connected to the intermittent spiral offset mechanism through the one-way bearing, and the trigger gear is meshed with the trigger rack.

5. A concrete quality detector according to claim 4, characterized in that: The rapid outward movement and tamping assembly includes a fixed plate, an outward movement rotating plate, an outward movement motor, a mounting seat and a tamping rod body, a fixed column is provided at the center of the bottom wall of the movable slider, one end of the fixed plate is fixedly installed on the bottom end of the fixed column, and the other end of the fixed plate is rotatably provided with an outward movement rotating shaft, the middle part of the outward movement rotating plate is fixedly connected with the outward movement rotating shaft, the outward movement motor is arranged on the fixed plate, the outward movement motor is connected to the outward movement rotating shaft, the mounting seat is arranged on the bottom wall of one end of the outward movement rotating plate, the tamping rod body is arranged at the bottom of the outward movement rotating plate through the mounting seat, the axis length of the tamping rod body to the outward movement rotating shaft is equal to the axis length of the outward movement rotating shaft to the fixed column, pressure sensor 1 and pressure sensor 2 are respectively provided on both sides of the movable slider, and a controller is provided in the intermittent spiral offset mechanism, and the controller is electrically connected to pressure sensor 1, pressure sensor 2 and the outward movement motor respectively.

6. A concrete quality detector according to claim 5, characterized in that: The ratio of the diameter of the rotation track of the tamping rod body around the outer rotation axis to the diameter of the upper opening of the slump cone is 23:48, and the ratio of the length of the moving slider moving along the radial direction of the slump cone each time to the diameter of the upper opening of the slump cone is 1:

48.

7. A concrete quality detector according to claim 6, characterized in that: The reciprocating lifting mechanism includes a mounting bracket, a driving motor, a lifting reciprocating screw and a threaded slider matched with the lifting reciprocating screw. A vertically arranged reciprocating sliding frame is provided at the bottom end of the mounting bracket, the extension plate is arranged on the side wall of the reciprocating sliding frame, the lifting reciprocating screw is rotatably arranged in the reciprocating sliding frame, the driving motor is arranged on the mounting bracket, the driving motor is connected to the lifting reciprocating screw, the threaded slider is slidably engaged with the reciprocating sliding frame, and the threaded slider is connected to an intermittent spiral offset mechanism.

8. A concrete quality detector according to claim 7, characterized in that: The intermittent spiral offset mechanism includes a fixed seat, a rotating drum, a rotating assembly and a synchronous translation assembly. The side wall of the fixed seat is connected to the threaded slider. A transmission cavity is provided in the fixed seat. A fixed disk is fixedly installed at the bottom of the fixed seat. The rotating drum is coaxially rotatably connected with the fixed disk. The rotating assembly is arranged in the transmission cavity. The rotating assembly transmission is arranged between the trigger gear and the rotating drum. The rotating assembly drives the rotating drum to rotate around the fixed seat. The synchronous translation assembly is arranged in the rotating drum. The translation sliding hole is arranged through the bottom wall of the rotating drum. The synchronous translation assembly is connected to the moving slider.

9. A concrete quality detector according to claim 8, characterized in that: The rotating assembly includes a transmission shaft, a rotating bevel gear 1, a rotating bevel gear 2, an internal gear and an internal gear ring. The transmission shaft rotates and passes through the side wall of the fixed seat. The trigger gear is installed on the transmission shaft through a one-way bearing 2. The rotating bevel gears are coaxially fixedly arranged on the transmission shaft and arranged in a transmission cavity. The rotating bevel gear 2 is rotatably arranged on the bottom wall of the transmission cavity. The rotating bevel gear 1 and the rotating bevel gear 2 are meshed. The internal gear is rotatably arranged on the bottom wall of the fixed seat. The internal gear is coaxially fixedly connected to the rotating bevel gear 2. The internal gear ring is coaxially fixedly arranged on the upper end of the rotating drum. The inner wall of the inner gear ring is provided with gear teeth, and the internal gear is meshed with the inner gear teeth of the inner gear ring.

10. A concrete quality detector according to claim 9, characterized in that: The synchronous translation assembly includes a fixed gear, a driven gear, a translation bevel gear 1, a translation bevel gear 2 and a translation reciprocating screw rod. A through hole is provided on the upper wall of the rotating drum. The fixed gear is coaxially fixedly installed on the bottom wall of the fixed plate. A ring plate is provided in the rotating drum. The fixed plate is arranged between the ring plate and the inner gear ring. The driven gear is rotatably arranged on the bottom wall of the ring plate. The driven gear is meshed with the fixed gear. The translation bevel gear is coaxially fixedly arranged below the driven gear. The translation bevel gear 2 is rotatably arranged on the inner side wall of the rotating drum. The translation reciprocating screw rod is coaxially fixedly connected with the translation bevel gear 2. A threaded slide is provided on the upper wall of the moving slider. The threaded slide rod is threadedly connected to the translation reciprocating screw rod. The ratio of the length of a single sliding stroke of the threaded slide rod to the diameter of the opening at the upper end of the slump cone is 25:48.

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