Construction engineering quality detection device and detection method

Abstract

The present invention relates to the technical field of engineering quality inspection, and specifically discloses a construction engineering quality inspection device and inspection method, including a fixed plate and a clamping assembly, a speed increasing assembly and a detection assembly, wherein the fixed plate near the bottom end is penetrated front and back and is rotatably connected to a drive shaft driven by a motor, and clamping plates are provided on both sides of the fixed plate, and the clamping plates are coaxially penetrated transversely and are rotatably connected to the same threaded shaft. The present invention provides a clamping assembly to achieve the function of automatically adapting the maximum detection range of the detection assembly to the size of the concrete wall while clamping and fixing the concrete wall; provides a speed increasing assembly to drive the detection assembly to work while further ensuring the multi-point knocking detection effect of the detection assembly; and provides a detection assembly to achieve the overall strength detection of the concrete wall while its knocking intensity can be freely adjusted and the adjustment process is smooth and accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering quality detection, and in particular to a construction engineering quality detection device and detection method. Background Art

[0002] Concrete wall inspection is an important part of construction project quality inspection. The strength and durability of concrete walls directly affect the safety and service life of the building. Through comprehensive inspection methods, the quality of the wall can be effectively guaranteed, ensuring the long-term stability and safety of the building.

[0003] After searching, the Chinese patent with publication number CN118090486B includes a base plate, a box body is provided at the upper end of the base plate, a baffle is provided at the front end of the box body, and a fixed-point knocking structure is provided on the box body, which can knock on different positions of the concrete at the same time and the knocking force is adjustable. A positioning structure is provided on the base plate to cooperate with the opening and closing of the baffle, and the positioning structure includes a pair of clamping rods moving toward each other, and the clamping rods are provided with positioning columns corresponding to the concrete. A cleaning structure driven and connected to the positioning structure is also provided on the base plate, which effectively solves the problem in the prior art that the same position is hit accidentally, resulting in large errors in the detection results, and when hitting the concrete, the position of the concrete usually needs to be fixed separately, resulting in reduced detection efficiency.

[0004] However, the above patent lacks a means to synchronize the knocking range with the size of the concrete sample. Even if the knocking of the adjacent points of the concrete sample is achieved through a fixed-point knocking structure, the knocking points are still difficult to cover the entire surface area of the concrete sample, and the detection results still have an error range when representing the overall strength structure of the concrete sample. On the other hand, the adjustment of the knocking force in the above patent is limited by the number of teeth of the first incomplete gear and the second incomplete gear, and its adjustment gears are relatively few and difficult to meet the needs of actual scenarios. Summary of the Invention

[0005] The purpose of the present invention is to provide a construction engineering quality detection device and detection method, which have the advantages of multiple detection and free adjustment, and solve the problems raised in the background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a construction engineering quality inspection device, comprising a fixed plate and a clamping assembly provided on one side of the top of the fixed plate, a speed-increasing assembly provided on the same side as the bottom of the fixed plate, and a detection assembly transmission-connected to the speed-increasing assembly, wherein a drive shaft driven by a motor is penetrated front and back near the bottom of the fixed plate and is rotatably connected thereto, and clamping plates are provided on both sides of the fixed plate, and the clamping plates are coaxially and transversely penetrated therethrough and are rotatably connected thereto by the same threaded shaft;

[0007] The clamping assembly includes a transmission shaft that fixes the concrete wall and limits the working range of the detection assembly. The transmission shaft runs through the front and back and is connected to the fixed plate near the top with limited rotation.

[0008] The speed increasing assembly includes a rotating table for performing a multi-point single-shot global inspection of the concrete wall and controlling the working efficiency of the inspection assembly. The rotating table and the drive shaft are both located on the same side of the fixed plate and the rotating table is fixedly connected to the drive shaft.

[0009] The detection component includes a transmission mechanism for realizing motion transmission of the speed-increasing component and a knocking mechanism for performing impact test on the concrete wall. The transmission mechanism is in transmission connection with the speed-increasing component, and the knocking mechanism is in transmission connection with the transmission mechanism.

[0010] Preferably, the transmission shaft is fixedly connected to the outer contour of the driving shaft position, the outer contour of the transmission wheel is meshed and transmission connected with a chain, the other end of the chain is meshed and transmission connected with the driving wheel and the driving wheel is passed through and fixedly connected to the driving shaft, and the transmission shaft is fixedly connected to a retraction wheel at one end away from the fixed plate, and both vertical sides of the retraction wheel are meshed and transmission connected with a rack, and one end of the rack close to the clamping plate is fixedly connected to extension rods that are symmetrically distributed and staggered with each other, and one end of the extension rod away from the rack is fixedly connected to a collar, and the collar is sleeved on the outer contours of both sides of the threaded shaft, and the back surfaces of the collar are fixedly connected to compression springs, and the compression springs are also sleeved on the outer contours of both sides of the threaded shaft, and the ends of the compression springs away from the collar are fixedly connected to threaded rings, and the threaded rings are fixedly connected to the opposite surfaces of the clamping plate and threadedly connected to the threaded shaft.

[0011] Preferably, the rotating table is vertically penetrated and slidably connected to a transmission rod, the top end of the transmission rod is fixedly connected to an L-shaped seat and the L-shaped seat faces away from the fixed plate, a reset spring sleeved on the outer contour of the transmission rod is fixedly connected between the rotating table and the L-shaped seat, the end of the L-shaped seat facing away from the fixed plate is fixedly connected to a planetary carrier, the axis of the planetary carrier away from the L-shaped seat passes through and is rotatably connected to a sun gear, a plurality of planetary gears are meshed and transmission-connected on the outer contour of the sun gear and the planetary gears also pass through and are rotatably connected to the planetary carrier, and the outer contours of the planetary gears are meshed together and transmission-connected with the same inner gear ring.

[0012] Preferably, the transmission mechanism includes a crown wheel that is meshed with and transmission-connected to the top end of the sun gear away from the L-shaped seat, and the inner contour of the bottom end of the crown wheel is rotatably connected to the upper limit position. The lifting platform is vertically penetrated and slidably connected to a positioning shaft, and the positioning shaft also penetrates and is rotationally connected to the crown wheel. The lifting platform is fixedly connected to a connecting shaft on both horizontal sides, and the other end of the connecting shaft is fixedly connected to the outer contours on both horizontal sides of the inner gear ring. The lifting platform is fixedly connected to an upward-extending positioning rod on the side away from the sun gear, and the upper surface of the positioning rod is fixedly connected to two limit seats distributed in a mirror-symmetrical manner.

[0013] Preferably, the top end of the positioning shaft is passed through and rotatably connected to the outer contour of the middle section of the threaded shaft, and the threads of the threaded shaft on the outer contours on both sides of the positioning shaft are in opposite directions, and the crown wheel is driven solely by a motor controlled by an intelligent system.

[0014] Preferably, the knocking mechanism includes an eccentric wheel placed on the top of the limit seat and also penetrated by the positioning shaft, a guide groove is provided at the outer edge of the upper surface of the eccentric wheel, and an eccentric groove is provided at the position where the eccentric wheel is penetrated by the positioning shaft, and a knocking hammer extending outward is transmission-connected to the position of the positioning rod on the inner contour of the guide groove, and the knocking hammer penetrates and is slidably connected to the positioning rod, a slider is fixedly connected to the corresponding position of the lower surface of the eccentric wheel and the slider is limitedly slidably connected to the inner contour of the limit seat, one of the sliders is penetrated and screwed with an adjusting shaft, and the adjusting shaft penetrates and is rotatably connected to the limit seat at the corresponding position.

[0015] Preferably, the size of the eccentric groove corresponds to the length of the adjustment shaft inside the limit seat, and a rebound hammer is provided at one end of the striking hammer away from the guide groove.

[0016] Preferably, a construction project quality inspection method comprises the following steps:

[0017] S1. Clamping and fixing: Place the concrete wall to be inspected directly under the threaded shaft, rotate the threaded shaft to drive the clamping assembly to retract, and the clamping assembly drives the clamping plates to retract synchronously until the clamping plates abut against both sides of the concrete wall. At this time, the clamping plates clamp and fix the concrete wall;

[0018] S2. Overall strength test: The drive shaft rotates and drives the speed-increasing assembly, which in turn drives the detection assembly to work synchronously and increase the transmission ratio between the drive shaft and the transmission mechanism. Simultaneously, the clamping assembly limits the maximum stroke of the transmission mechanism, which in turn drives the tapping mechanism to achieve multi-point tapping testing on the entire surface of the concrete wall.

[0019] S3. Impact intensity adjustment: When it is necessary to test the effects of different impact intensities on the concrete wall, the adjustment shaft is rotated to control the eccentricity between the impact mechanism and the transmission mechanism. The eccentricity between the impact mechanism and the transmission mechanism is the maximum stroke of the reciprocating extension and retraction of the impact hammer, thereby achieving stepless adjustment of the impact intensity.

[0020] S4. Local strength detection: The data recorded in S2 is used to draw a strength distribution map of the concrete wall surface. By setting the warning threshold, the high-strength area and low-strength area on the wall surface are segmented. Then, the intelligent system is used to control the crown wheel to rotate alone to realize single-point multiple impact detection of the high-strength area.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention provides a clamping assembly to clamp and fix the concrete wall while further limiting the maximum travel of the transmission, thereby achieving the function of automatically adapting the maximum detection range of the detection assembly to the size of the concrete wall.

[0023] The present invention provides a speed-increasing component to drive the detection component to work, while increasing the transmission ratio of the drive shaft and the transmission mechanism to further ensure the multi-point knocking detection effect of the detection component.

[0024] The present invention realizes the detection of the overall strength of the concrete wall by arranging the detection component, and at the same time, the knocking intensity can be freely adjusted and the adjustment process is smooth and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the main structure of the present invention;

[0027] Figure 3 A schematic diagram of the positional relationship between the clamping assembly and the fixing plate of the present invention;

[0028] Figure 4 This is an exploded view of the clamping assembly structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the positional relationship between the speed increasing assembly and the fixed plate of the present invention;

[0030] Figure 6 This is an exploded view of the speed increasing assembly structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the detection component of the present invention;

[0032] Figure 8 It is an exploded diagram of the transmission mechanism and the knocking mechanism structure of the present invention;

[0033] Figure 9 It is the overall workflow diagram of the present invention.

[0034] In the figure: 1. Fixed plate; 11. Drive shaft; 12. Clamping plate; 13. Threaded shaft; 2. Transmission shaft; 21. Transmission wheel; 22. Chain; 23. Drive wheel; 24. Retraction wheel; 25. Rack; 26. Extension rod; 27. Collar; 28. Compression spring; 29. Threaded ring; 3. Turntable; 31. Transmission rod; 32. Return spring; 33. L-shaped seat; 34. Planet carrier; 35. Sun gear; 36. Planet gear; 37. Inner ring gear; 4. Crown wheel; 41. Lifting platform; 42. Connecting shaft; 43. Positioning shaft; 44. Positioning rod; 45. Limit seat; 5. Eccentric wheel; 51. Guide groove; 52. Eccentric groove; 53. Beating hammer; 54. Slider; 55. Adjusting shaft. DETAILED DESCRIPTION

[0035] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example 1:

[0036] See also Figures 1 to 9 The present invention provides a technical solution: a construction engineering quality inspection device, comprising a fixed plate 1 and a clamping assembly arranged on one side of the top of the fixed plate 1, a speed-increasing assembly arranged on the same side of the bottom end of the fixed plate 1, and a detection assembly transmission-connected to the speed-increasing assembly, wherein the fixed plate 1 is penetrated front and back near the bottom end thereof and is rotatably connected to a drive shaft 11 driven by a motor, and clamping plates 12 are provided on both sides of the fixed plate 1, and the clamping plates 12 are coaxially and laterally penetrated and rotatably connected to the same threaded shaft 13;

[0037] The clamping assembly includes a transmission shaft 2 for fixing the concrete wall and limiting the working range of the detection assembly. The transmission shaft 2 passes through the front and back and is connected to the fixed plate 1 near the top of the fixed plate 1 with limited rotation.

[0038] The speed increasing assembly includes a rotating table 3 for performing a multi-point single-shot global inspection of the concrete wall and controlling the working efficiency of the inspection assembly. The rotating table 3 and the transmission shaft 2 are both located on the same side of the fixed plate 1 and the rotating table 3 is fixedly connected to the drive shaft 11;

[0039] The detection component includes a transmission mechanism for realizing motion transmission of the speed-increasing component and a knocking mechanism for performing impact test on the concrete wall. The transmission mechanism is in transmission connection with the speed-increasing component, and the knocking mechanism is in transmission connection with the transmission mechanism.

[0040] In the present invention, the fixed plate 1 is fixed on the ground to provide limited support for the drive shaft 11 and the transmission shaft 2. The drive shaft 11 serves as the power source of the device. The clamping mechanism controls the two clamping plates 12 to move in opposite directions through the rotation of the threaded shaft 13 to achieve contraction, and then the clamping plates 12 are pressed against both sides of the concrete wall to achieve clamping and fixing of the wall.

[0041] Then the motor is turned on to drive the drive shaft 11 to rotate, the speed-increasing component runs synchronously, and the device starts detection work. The drive shaft 11 and the transmission mechanism are respectively arranged at the input and output ends of the speed-increasing component. The output speed is increased by the speed-increasing component, thereby effectively expanding the transmission ratio between the drive shaft 11 and the transmission mechanism.

[0042] At the same time, the transmission mechanism is interfered with by the clamping assembly during operation, so that its maximum rotation range matches the size of the concrete wall. At the same time, the clamping assembly is synchronously contracted through the drive shaft 11, which further limits the rotation range of the transmission mechanism, so that the motion trajectory of the transmission mechanism presents a spiral inward contraction shape.

[0043] Furthermore, the transmission mechanism drives the knocking mechanism to operate synchronously. The knocking mechanism continuously knocks on the concrete wall while the transmission mechanism rotates, thereby achieving multi-point knocking on the wall and recording rebound data, thereby completing its overall strength detection work.

[0044] It should be noted that when it is necessary to adjust the impact intensity of the knocking mechanism on the wall, since the distance between the adjusting mechanism and the wall remains unchanged, the maximum telescopic stroke of the knocking mechanism is adjusted, and the pressure generated when it hits the wall changes synchronously, thereby completing the stepless adjustment of the impact intensity. Example 2:

[0045] See also Figure 3-4 This embodiment further illustrates the following based on the first embodiment:

[0046] The transmission shaft 2 is fixedly connected to the outer contour of the position where the drive shaft 11 is fitted, and a transmission wheel 21 is fixedly connected, and a chain 22 is meshed and transmission-connected on the outer contour of the transmission wheel 21, and the other end of the chain 22 is meshed and transmission-connected with a drive wheel 23, and the drive wheel 23 is penetrated and fixedly connected to the drive shaft 11, and the end of the transmission shaft 2 away from the fixed plate 1 is fixedly connected to a contraction wheel 24, and both vertical sides of the contraction wheel 24 are meshed and transmission-connected with a rack 25, and the rack 25 is fixed to the end close to the clamping plate 12. There are extension rods 26 that are fixedly connected and symmetrically distributed with each other. The end of the extension rod 26 away from the rack 25 is fixedly connected to a collar 27, and the collar 27 is sleeved on the outer contours on both sides of the threaded shaft 13. The away surfaces of the collars 27 are fixedly connected to compression springs 28, and the compression springs 28 are also sleeved on the outer contours on both sides of the threaded shaft 13. The ends of the compression springs 28 away from the collars 27 are fixedly connected to threaded rings 29, and the threaded rings 29 are fixedly connected to the opposite surface of the clamping plate 12 and are screwed to the threaded shaft 13.

[0047] When fixing a concrete wall, place the wall to be inspected directly under the threaded shaft 13. At this time, rotate the threaded shaft 13. Under the action of the screw connection, the threaded shaft 13 drives the two threaded rings 29 and the clamping plate 12 to approach each other until the clamping plate 12 is against both sides of the wall. At this time, the clamping plate 12 and the threaded ring 29 are restricted by the wall and cannot continue to move. The rotation of the threaded shaft 13 will continue to increase the pressure between the clamping plate 12 and the wall, thereby achieving the clamping and fixing of the wall.

[0048] During the detection process, the drive shaft 11 drives the transmission wheel 21, the transmission shaft 2 and the retraction wheel 24 to rotate synchronously through the chain 22. The rotation of the retraction wheel 24 further drives the rack 25 to move horizontally and the movement directions of the racks 25 on both sides are opposite. The rack 25 synchronously drives the extension rod 26 and the ring 27 to move, that is, the two extension rods 26 and the ring 27 are synchronously close to each other at this time, and the threaded ring 29 is restricted by the clamping plate 12 and cannot continue to move, which causes the two compression springs 28 to be stretched and as the drive shaft 11 continues to rotate, the stretching degree of the compression spring 28 increases synchronously, thereby limiting the maximum rotation range of the subsequent transmission mechanism through the position change of the threaded ring 29. Example 3:

[0049] See also Figure 5-6 This embodiment further illustrates the following based on the second embodiment:

[0050] The rotating table 3 is vertically penetrated and slidably connected with a transmission rod 31, the top of the transmission rod 31 is fixedly connected to an L-shaped seat 33, and the L-shaped seat 33 faces away from the fixed plate 1, and a return spring 32 sleeved on the outer contour of the transmission rod 31 is fixedly connected between the rotating table 3 and the L-shaped seat 33, and the end of the L-shaped seat 33 facing away from the fixed plate 1 is fixedly connected to a planetary carrier 34, and the axis of the planetary carrier 34 away from the end of the L-shaped seat 33 is penetrated and rotatably connected to a sun gear 35, and a plurality of planetary gears 36 are meshed and transmission-connected on the outer contour of the sun gear 35, and the planetary gears 36 also penetrate and rotationally connected to the planetary carrier 34, and the outer contours of the planetary gears 36 are meshed and transmission-connected with the same inner gear ring 37.

[0051] When the drive shaft 11 rotates, the turntable 3 rotates along with the drive shaft 11 and drives the transmission rod 31 and the L-shaped seat 33 to move synchronously. At this time, the planetary carrier 34 rotates synchronously with the L-shaped seat 33 with the part of the transmission rod 31 located inside the turntable 3 as the axis, that is, the orientation between the planetary carrier 34 and the turntable 3 does not change, and the inner ring gear 37 is restricted by the knocking mechanism, so that while it rotates along with the planetary carrier 34, the orientation of the inner ring gear 37 does not change. That is, at this time, the planetary carrier 34 and the inner ring gear 37 rotate relative to each other due to the change in the orientation of the planetary carrier 34.

[0052] Furthermore, the rotation of the planet carrier 34 drives the planetary gears 36 to move synchronously, and the fixed direction of the inner ring gear 37 provides a stable engagement point for the planetary gears 36, so that the planetary gears 36 rotate around the sun gear 35 and the inner ring gear 37 and engage with the sun gear 35 and drive the sun gear 35 to rotate synchronously. In this process, the transmission ratio of the speed-increasing component is limited by the number of teeth of the sun gear 35 and the inner ring gear 37. Since the number of teeth of the sun gear 35 is significantly smaller than the number of teeth of the inner ring gear 37 under normal circumstances, the transmission ratio of the speed-increasing component is much greater than 1, that is, at this time, the speed-increasing effect can be effectively achieved by inputting through the planet carrier 34, fixing the direction of the inner ring gear 37 and outputting through the sun gear 35. Example 4:

[0053] See also Figure 7-8 This embodiment further illustrates the following on the basis of the third embodiment:

[0054] The transmission mechanism includes a crown wheel 4 that is meshed with and transmission-connected to the top end of the sun gear 35 on the side away from the L-shaped seat 33. The inner contour of the bottom end of the crown wheel 4 is rotatably connected to the upper limit position with a lifting platform 41. The lifting platform 41 is vertically penetrated and slidably connected to a positioning shaft 43, and the positioning shaft 43 also penetrates and is rotationally connected to the crown wheel 4. The lifting platform 41 is fixedly connected to a connecting shaft 42 on both horizontal sides, and the other end of the connecting shaft 42 is fixedly connected to the outer contours of the inner gear ring 37 on both horizontal sides. The lifting platform 41 is fixedly connected to an upwardly extending positioning rod 44 on the side away from the sun gear 35. The upper surface of the positioning rod 44 is fixedly connected to two mirror-symmetrically distributed limit seats 45.

[0055] The top end of the positioning shaft 43 is inserted through and rotatably connected to the outer contour of the midsection of the threaded shaft 13. The threads of the threaded shaft 13 on the outer contours of the positioning shaft 43 face opposite directions. The crown wheel 4 is independently driven by a motor controlled by an intelligent system. The intelligent system can be implemented using a controller with remote control capabilities. This application will not further describe the intelligent system in detail, as it is known in the art. Generally speaking, a single-chip microcomputer or ARM controller connected to a wireless receiver can be used to remotely control the motor automatically or manually.

[0056] The knocking mechanism includes an eccentric wheel 5 placed on the top of the limit seat 45 and also penetrated by the positioning shaft 43. A guide groove 51 is provided at the outer edge of the upper surface of the eccentric wheel 5, and an eccentric groove 52 is provided at the position where the eccentric wheel 5 is penetrated by the positioning shaft 43. A knocking hammer 53 extending outward is transmission-connected at the position near the positioning rod 44 on the inner contour of the guide groove 51, and the knocking hammer 53 penetrates and is slidably connected to the positioning rod 44. A slider 54 is fixedly connected to the corresponding position of the lower surface of the eccentric wheel 5 and the slider 54 is limitedly slidably connected to the inner contour of the limit seat 45. One of the sliders 54 is penetrated and screwed with an adjusting shaft 55, and the adjusting shaft 55 penetrates and is rotatably connected to the limit seat 45 at the corresponding position.

[0057] The size of the eccentric groove 52 corresponds to the length of the adjustment shaft 55 inside the limiting seat 45 , and a rebound hammer is provided at one end of the striking hammer 53 away from the guide groove 51 .

[0058] Furthermore, while the rotating platform 3 drives the transmission rod 31 and the L-shaped seat 33 to rotate, the planet carrier 34 squeezes the sun gear 35, the planet gears 36 and the inner ring gear 37 to rotate synchronously, and the inner ring gear 37 further drives the connecting shaft 42 and the crown wheel 4 to rotate synchronously. The lifting platform 41, the positioning shaft 43 and the threaded shaft 13 cooperate with each other to adjust the circumferential rotation of the transmission rod 31 to a rectangular reciprocating motion. When the transmission rod 31 rotates and drives the positioning shaft 43 to move horizontally along the threaded shaft 13, the positioning shaft 43 gradually approaches the collar 27 on its moving side and finally comes into contact with the collar 27. At this time, the continued rotation of the transmission rod 31 will be limited by the collar 27 This causes the lifting platform 41 to descend along the positioning shaft 43. At the same time, the transmission rod 31 contracts along the rotating table 3 and compresses the reset spring 32. When the crown wheel 4 is halfway down, the reset spring 32 begins to reset and drives the transmission rod 31 to re-extend along the rotating table 3. After the crown wheel 4 descends to the limit distance, the rotation of the transmission rod 31 drives the positioning shaft 43 to move in the opposite direction along the threaded shaft 13 until the positioning shaft 43 is squeezed and contacted with the collar 27 on the other side. At this time, the transmission rod 31 drives the lifting platform 41 to rise again and rotate exactly one circle, thereby adjusting the circular rotation of the transmission rod 31 to a rectangular reciprocating motion, so that it adapts to the surface size of the concrete wall.

[0059] It should be noted that, as can be seen from the second embodiment, during the rotation of the transmission rod 31, the two collars 27 are constantly approaching each other, that is, the maximum movement stroke of the positioning shaft 43 along the threaded shaft 13 is constantly reduced, so that the crown wheel 4 follows the running trajectory of the lifting platform 41 to be a rectangular reciprocating motion that is constantly shrinking inward, thereby realizing the overall detection operation of the concrete wall surface.

[0060] At the same time, the rotation of the sun gear 35 described in the third embodiment further drives the crown gear 4 to rotate under the meshing action, while the lifting platform 41 and the positioning rod 44 do not rotate with the crown gear 4 due to the restraining action of the connecting shaft 42 and the inner ring gear 37. At this time, the crown gear 4 drives the positioning rod 44 and the eccentric wheel 5 to rotate synchronously via the slider 54. Since the eccentric wheel 5 is not coaxial with the crown gear 4, the eccentric wheel 5 now begins to rotate eccentrically along with the crown gear 4.

[0061] Furthermore, the eccentric rotation of the eccentric wheel 5 causes the striking hammer 53 to begin to reciprocate and extend along the positioning rod 44 under the limiting action of the guide groove 51, thereby realizing the continuous impact of the striking hammer 53 on the surface of the concrete wall. Since the striking hammer 53 rotates synchronously with the transmission rod 31 during this process, that is, the contact points of the striking hammer 53 and the wall are inconsistent each time, a multi-point tapping operation is realized on the wall surface to complete its overall detection effect.

[0062] The impact intensity of the striking hammer 53 is limited by its maximum extension and contraction, which is equivalent to the eccentricity between the axes of the eccentric wheel 5 and the crown wheel 4. By rotating the adjusting shaft 55, the slider 54 can be made to slide in the limit seat 45, thereby causing the position of the positioning shaft 43 in the eccentric groove 52 to shift. The offset is equal to the eccentricity between the axes of the eccentric wheel 5 and the crown wheel 4. Since the threaded connection has no gear limit and is self-locking, the impact intensity of the striking hammer 53 can be infinitely adjusted, and the adjustment process is flexible, smooth and precise. Embodiment 5:

[0063] See also Figure 9 This embodiment further illustrates the following based on the fourth embodiment:

[0064] A construction engineering quality detection method comprises the following steps:

[0065] S1. Clamping and fixing: Place the concrete wall to be inspected directly under the threaded shaft 13, rotate the threaded shaft 13 to drive the clamping assembly to retract, and the clamping assembly drives the clamping plates 12 to retract synchronously until the clamping plates 12 abut against both sides of the concrete wall. At this time, the clamping plates 12 clamp and fix the concrete wall;

[0066] S2. Overall strength test: The drive shaft 11 is rotated to drive the speed-increasing assembly, which in turn drives the detection assembly to operate synchronously and increase the transmission ratio between the drive shaft 11 and the transmission mechanism. Simultaneously, the clamping assembly simultaneously limits the maximum stroke of the transmission mechanism, which in turn drives the tapping mechanism to perform multi-point tapping testing on the entire surface of the concrete wall.

[0067] S3. Adjustment of striking intensity: When it is necessary to test the effects of different striking intensities on the concrete wall, rotate the adjustment shaft 55 to control the eccentricity between the striking mechanism and the transmission mechanism. The eccentricity between the striking mechanism and the transmission mechanism is the maximum stroke of the reciprocating extension and retracting striking of the striking hammer 53, thereby achieving stepless adjustment of the striking intensity.

[0068] The overall strength test is performed during the process of the hammer 53 rotating with the transmission rod 31 to perform telescopic impact on the concrete wall surface. The rebound data is recorded by the rebound hammer installed on the hammer 53, and the wall strength at this point is calculated. Then, a global strength distribution map of the wall surface is drawn. By setting a warning threshold and marking the data below the threshold in red, high-strength and low-strength areas on the wall surface can be determined.

[0069] S4. Local strength detection: The data recorded in S2 is used to draw a strength distribution map of the concrete wall surface. By setting the warning threshold, the high-strength area and low-strength area on the wall surface are segmented. Then, the intelligent system is used to control the crown wheel 4 to rotate alone to realize single-point multiple impact detection of the high-strength area.

[0070] During the control process of S4, the intelligent system controls the rotation of the drive shaft 11 and drives the hammer 53 to move to the corresponding point. Then the system stops rotating the drive shaft 11 and drives the sun gear 35 to rotate alone. At this time, the hammer 53 continues to extend and retract to realize a single-point multiple-tap test, thereby reducing the error that may be caused by a single impact to improve the accuracy of the detection. At the same time, by adjusting the adjustment shaft 55, the structural impact of different impact intensities on the concrete wall at the same point can be obtained.

[0071] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A construction engineering quality inspection device, comprising a fixed plate (1) and a clamping assembly arranged on one side of the top end of the fixed plate (1), a speed increasing assembly arranged on the same side as the bottom end of the fixed plate (1), and a detection assembly connected to the speed increasing assembly in a transmission manner, characterized in that: The fixed plate (1) is penetrated front and back near the bottom end thereof and is rotatably connected to a drive shaft (11) driven by a motor. Clamping plates (12) are provided on both sides of the fixed plate (1). The clamping plates (12) are coaxially and laterally penetrated and are rotatably connected to the same threaded shaft (13). The clamping assembly comprises a transmission shaft (2) for fixing the concrete wall and limiting the working range of the detection assembly, wherein the transmission shaft (2) penetrates the front and rear and is connected to the fixed plate (1) at a position close to the top end in a limited rotation manner; The speed increasing assembly comprises a rotating table (3) for performing multi-point single-shot global detection on the concrete wall and controlling the working efficiency of the detection assembly, wherein the rotating table (3) and the transmission shaft (2) are both located on the same side of the fixed plate (1), and the rotating table (3) is fixedly connected to the drive shaft (11); The detection component includes a transmission mechanism for realizing motion transmission of the speed-increasing component and a knocking mechanism for performing impact test on the concrete wall. The transmission mechanism is in transmission connection with the speed-increasing component, and the knocking mechanism is in transmission connection with the transmission mechanism.

2. A construction engineering quality detection device according to claim 1, characterized in that: The transmission shaft (2) is fixedly connected to the outer contour of the position where the drive shaft (11) is fitted, and a transmission wheel (21) is meshed and transmission-connected with a chain (22) on the outer contour of the transmission wheel (21), and the other end of the chain (22) is meshed and transmission-connected with a drive wheel (23), and the drive wheel (23) is penetrated and fixedly connected to the drive shaft (11), and the end of the transmission shaft (2) away from the fixed plate (1) is fixedly connected to a contraction wheel (24), and both vertical sides of the contraction wheel (24) are meshed and transmission-connected with a rack (25), and the end of the rack (25) close to the clamping plate (12) is fixedly connected to extension rods that are symmetrically distributed and staggered with each other. (26), the end of the extension rod (26) away from the rack (25) is fixedly connected to a collar (27), and the collar (27) is sleeved on the outer contours of both sides of the threaded shaft (13), the back surface of the collar (27) is fixedly connected to a compression spring (28), and the compression spring (28) is also sleeved on the outer contours of both sides of the threaded shaft (13), the end of the compression spring (28) away from the collar (27) is fixedly connected to a threaded ring (29), and the threaded ring (29) is fixedly connected to the opposite surface of the clamping plate (12) and is screwed to the threaded shaft (13); the rotating table (3) is vertically penetrated and slidably connected to a transmission rod (31), the transmission rod The top of (31) is fixedly connected with an L-shaped seat (33) and the L-shaped seat (33) faces away from the fixed plate (1). A reset spring (32) sleeved on the outer contour of the transmission rod (31) is fixedly connected between the rotating platform (3) and the L-shaped seat (33). The end of the L-shaped seat (33) facing away from the fixed plate (1) is fixedly connected with a planetary carrier (34). The axis of the planetary carrier (34) away from the end of the L-shaped seat (33) passes through and is rotatably connected to a sun gear (35). The outer contour of the sun gear (35) is meshed and transmission-connected with a plurality of planetary gears (36) and the planetary gears (36) also pass through and are rotatably connected to the planetary carrier (34). The outer contours of the planetary gears (36) are meshed with and transmission-connected to the same inner gear ring (37); the transmission mechanism includes a crown wheel (4) meshed with and transmission-connected to the top of the sun gear (35) away from the L-shaped seat (33); the inner contour of the bottom end of the crown wheel (4) is rotatably connected to a lifting platform (41); the lifting platform (41) is vertically penetrated and slidably connected to a positioning shaft (43); and the positioning shaft (43) also penetrates and is rotationally connected to the crown wheel (4); the lifting platform (41) is fixedly connected to a connecting shaft (42) on both horizontal sides, and the other end of the connecting shaft (42) is fixedly connected to the outer contours of the inner gear ring (37) on both horizontal sides.

3. A construction engineering quality detection device according to claim 2, characterized in that: A positioning rod (44) extending upward is fixedly connected to one side of the lifting platform (41) away from the sun gear (35), and two limiting seats (45) distributed in a mirror-symmetrical manner are fixedly connected to the upper surface of the positioning rod (44).

4. A construction engineering quality detection device according to claim 3, characterized in that: The top end of the positioning shaft (43) is penetrated and rotatably connected to the outer contour of the middle section of the threaded shaft (13), and the threads of the threaded shaft (13) on the outer contours on both sides of the positioning shaft (43) face opposite directions. The crown wheel (4) is driven separately by a motor controlled by an intelligent system.

5. A construction engineering quality detection device according to claim 3, characterized in that: The knocking mechanism includes an eccentric wheel (5) placed on the top of the limiting seat (45) and also penetrated by the positioning shaft (43), a guide groove (51) is provided at the outer edge of the upper surface of the eccentric wheel (5), an eccentric groove (52) is provided at the position where the eccentric wheel (5) is penetrated by the positioning shaft (43), an outwardly extending knocking hammer (53) is connected in a transmission manner at a position close to the positioning rod (44) on the inner contour of the guide groove (51), and the knocking hammer (53) penetrates and is slidably connected to the positioning rod (44), a slider (54) is fixedly connected at a position corresponding to the limiting seat (45) on the lower surface of the eccentric wheel (5), and the slider (54) is limitedly slidably connected to the inner contour of the limiting seat (45), one of the sliders (54) is penetrated and screwed with an adjusting shaft (55), and the adjusting shaft (55) penetrates and is rotatably connected to the limiting seat (45) at the corresponding position.

6. A construction engineering quality detection device according to claim 5, characterized in that: The opening size of the eccentric groove (52) corresponds to the length of the adjustment shaft (55) located inside the limit seat (45), and a rebound tester is provided at one end of the striking hammer (53) away from the guide groove (51).

7. A construction engineering quality inspection method, applied to a construction engineering quality inspection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Clamping and fixing: the concrete wall to be inspected is placed directly below the threaded shaft (13), the threaded shaft (13) is rotated to drive the clamping assembly to contract, and the clamping assembly drives the clamping plate (12) to contract synchronously until the clamping plate (12) is held against both sides of the concrete wall. At this time, the clamping plate (12) clamps and fixes the concrete wall; S2. Overall strength test: the driving shaft (11) is rotated to drive the speed increasing assembly to move, the speed increasing assembly further drives the detection assembly to work synchronously and increases the transmission ratio between the driving shaft (11) and the transmission mechanism, while the clamping assembly synchronously limits the maximum stroke of the transmission mechanism, and the transmission mechanism drives the knocking mechanism to work to realize multi-point knocking test on the entire surface of the concrete wall; S3. Adjustment of the striking intensity: When it is necessary to test the effect of different striking intensities on the concrete wall, the adjusting shaft (55) is rotated to control the eccentricity between the striking mechanism and the transmission mechanism. The eccentricity between the striking mechanism and the transmission mechanism is the maximum stroke of the striking hammer (53) for reciprocating telescopic striking, thereby achieving stepless adjustment of the striking intensity. S4, local strength detection: The data recorded in S2 is used to draw a strength distribution map of the concrete wall surface, and the high-strength area and low-strength area of the wall surface are segmented by setting a warning threshold. Then, the intelligent system is used to control the crown wheel (4) to rotate alone to achieve single-point multiple impact detection of the high-strength area.

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