A vibration detection device for construction engineering quality

Abstract

The present invention relates to the field of building detection technology, and discloses a construction engineering quality vibration detection device, comprising a top plate, the bottom wall of the top plate is fixedly connected to two connecting columns, the other ends of the two connecting columns are fixedly connected to a motor, the left side of the bottom wall of the top plate is fixedly connected to a first support column, the right side of the bottom wall of the top plate is fixedly connected to a second support column, the bottom end of the first support column is slidably connected to a first hydraulic mechanism, the bottom end of the first hydraulic mechanism is fixedly connected to a first bottom plate, and the bottom end of the second support column is slidably connected to a second hydraulic mechanism. The present invention detects the degree of inclination of the left and right bottom plates through the coordination between a piezoelectric block and a hydraulic rod, and at the same time automatically adjusts the amplitude of both sides according to the different degrees of inclination of the base surface through the coordination between a first permanent magnet, a second permanent magnet, and a second spring, thereby solving the problem of detection error caused by the inclination of the base surface during vibration detection in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of building detection, in particular to a vibration detection device for building engineering quality. Background Art

[0002] With the development of social economy, various construction projects are increasing, and vibration caused by engineering construction is inevitable. At the same time, other vibration interference sources have also appeared, which will have different degrees of impact and even harm to buildings and the surrounding environment. Through engineering vibration detection methods, these vibration sources can be quantitatively analyzed, and then the construction parameters can be improved and the technical basis and important data for shock absorption and earthquake resistance measures can be provided.

[0003] The existing vibration detection device for construction project quality has the following technical defects during use: First, when the base surface to be detected is an inclined surface or has a certain inclination angle, the detection result when the resonance generated by the vibration motor acts on the base surface is inconsistent with the actual detection result. At this time, the detection result has an error and cannot reflect the actual detection data; Second, when the vibration motor acts on the inclined surface, the eccentric wheel of the vibration motor rotates tiltedly, causing the eccentric wheel to be subjected to a large lateral centrifugal force, resulting in large losses during the rotation of the eccentric wheel and a greatly reduced service life, which urgently needs improvement. Summary of the Invention

[0004] In response to the shortcomings of the existing vibration detection devices raised in the background technology during use, the present invention provides a vibration detection device for construction project quality, which has the advantages of accurate detection results of the inclined base surface and effective protection of the eccentric wheel during tilt detection, solving the technical problems raised in the above background technology.

[0005] The present invention provides the following technical solution: a construction engineering quality vibration detection device, comprising a top plate, two connecting columns fixedly connected to the bottom wall of the top plate, the other ends of the two connecting columns fixedly connected to a motor, a first support column fixedly connected to the left side of the bottom wall of the top plate, a second support column fixedly connected to the right side of the bottom wall of the top plate, a first hydraulic mechanism slidably connected to the bottom end of the first support column, a first hydraulic mechanism fixedly connected to the first bottom plate, a second hydraulic mechanism slidably connected to the bottom end of the second support column, and a second hydraulic mechanism fixedly connected to the second bottom plate;

[0006] The left and right sides of the motor are fixedly connected to the output shaft, the left and right ends of the output shaft are sleeved, the left side wall of the left sleeve is rotatably connected to the first eccentric wheel, and the right side wall of the right sleeve is rotatably connected to the second eccentric wheel, the bottom wall of the motor is fixedly connected to three vibration springs, and the bottom walls of the three vibration springs are fixedly connected to the detection plate, the interior of the first bottom plate and the second bottom plate are both provided with a tilt detection mechanism, and the interior of the two sleeves are both provided with an amplitude adjustment mechanism.

[0007] Preferably, the amplitude adjustment mechanism includes a first electromagnet fixedly connected to the side wall of the sleeve and close to one side of the first eccentric wheel, the left and right side walls of the first electromagnet are fixedly connected to the second spring, the left side wall of the first eccentric wheel is fixedly connected to the first permanent magnet, the right side wall of the first eccentric wheel is fixedly connected to the second permanent magnet, and the first electromagnet and the second permanent magnet are both fixedly connected to the second spring;

[0008] The amplitude adjustment mechanism also includes a permanent magnet sleeve fixedly connected to the outer wall of the output shaft.

[0009] The inner wall of the sleeve is slidably connected to a connecting rod, one end of the connecting rod and the side close to the permanent magnet sleeve is fixedly connected to a second electromagnet, the outer side of the second electromagnet is fixedly connected to a third spring, and the other end of the third spring is fixedly connected to the inner wall of the sleeve.

[0010] Preferably, the first hydraulic mechanism includes a hydraulic rod slidably connected to the bottom wall of the first support column, a first spring is fixedly connected to the outside of the hydraulic rod and located on the bottom wall of the first support column, and the second hydraulic mechanism has the same structure as the first hydraulic mechanism.

[0011] Preferably, the tilt detection mechanism includes a first through hole opened inside the first bottom plate, a piezoelectric block is fixedly connected inside the first through hole, and the end of the first spring is fixedly connected to the piezoelectric block.

[0012] Preferably, the connecting rods are arranged at equal intervals along the inner wall of the sleeve, and the length of the connecting rods is two-thirds of the thickness of the sleeve wall.

[0013] Preferably, the through holes are arranged at equal intervals along the circumference of the hydraulic rod.

[0014] Preferably, the magnetism of the first electromagnet is the same as that of the first permanent magnet, and the magnetism of the first permanent magnet is different from that of the second permanent magnet.

[0015] Preferably, a second through hole is formed on the inner wall of the sleeve, and the diameter of the second through hole is greater than the diameter of the connecting rod.

[0016] Preferably, the number of the second through holes is consistent with the number of the connecting rods.

[0017] The present invention has the following beneficial effects:

[0018] 1. The present invention realizes the detection of the inclination degree of the left and right bottom plates through the coordinated arrangement between the piezoelectric block, the first through hole, and the hydraulic rod. At the same time, the coordinated arrangement between the first electromagnet, the first permanent magnet, the second permanent magnet, and the second spring automatically adjusts the amplitude on both sides according to the different inclination degrees of the base surface, thereby solving the problem of detection error caused by the inclination of the detection base surface during the vibration detection process of the prior art.

[0019] 2. The present invention controls the opening of the first electromagnet to adjust the deflection angle of the first eccentric wheel through the piezoelectric current generated by the piezoelectric blocks on both sides during detection, and adjusts the vibration amplitude through the overlap of the blade openings of the eccentric wheels on both sides, thereby achieving the effect of automatically adjusting the amplitude according to the inclination degree of the base surface to be measured.

[0020] 3. The present invention drives the eccentric wheels on both sides to rotate by rotating the output shaft of the motor, and at the same time, the second electromagnet is turned on after adjusting the overlap of the blade opening. At the same time, the third spring, the connecting rod, the second electromagnet and the permanent magnet sleeve are coordinated to achieve effective protection of the eccentric wheel rotating shaft, thereby significantly enhancing the service life of the eccentric wheel.

[0021] 4. The present invention achieves the most accurate vibration detection results according to the inclination of different detection base surfaces through the coordinated setting of the tilt detection mechanism and the amplitude adjustment mechanism. The two cooperate with each other to significantly improve the accuracy of the detection results and have very good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic diagram of the structure at center A;

[0024] Figure 3 Schematic diagram of the three-dimensional structure of the amplitude adjustment mechanism of the present invention;

[0025] Figure 4 Schematic diagram of the internal structure of the sleeve of the present invention;

[0026] Figure 5 Schematic diagram of the positional relationship structure of the connecting rod of the present invention;

[0027] Figure 6 Schematic diagram of the structure of the position relationship of the second through hole of the present invention.

[0028] In the figure: 1. Top plate; 2. Connecting column; 3. First support column; 31. Hydraulic rod; 32. First spring; 4. Second support column; 5. First bottom plate; 51. First through hole; 52. Piezoelectric block; 6. Second bottom plate; 7. First eccentric wheel; 8. Second eccentric wheel; 9. Motor; 90. Connecting rod; 91. Output shaft; 92. Sleeve; 921. Second through hole; 93. Second spring; 94. First permanent magnet; 95. Second permanent magnet; 96. First electromagnet; 97. Permanent magnet sleeve; 98. Third spring; 99. Second electromagnet; 10. Vibration spring; 11. Detection plate. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6 A construction engineering quality vibration detection device includes a top plate 1, two connecting columns 2 are fixedly connected to the bottom wall of the top plate 1, the other ends of the two connecting columns 2 are fixedly connected to a motor 9, a first support column 3 is fixedly connected to the left side of the bottom wall of the top plate 1, a second support column 4 is fixedly connected to the right side of the bottom wall of the top plate 1, the bottom end of the first support column 3 is slidably connected to a first hydraulic mechanism, the bottom end of the first hydraulic mechanism is fixedly connected to a first bottom plate 5, the bottom end of the second support column 4 is slidably connected to a second hydraulic mechanism, and the bottom end of the second hydraulic mechanism is fixedly connected to a second bottom plate 6;

[0031] The left and right sides of the motor 9 are fixedly connected to the output shaft 91, and the left and right ends of the output shaft 91 are sleeved with sleeves 92. The left wall of the left sleeve 92 is rotatably connected to the first eccentric wheel 7, and the right wall of the right sleeve 92 is rotatably connected to the second eccentric wheel 8. The bottom wall of the motor 9 is fixedly connected to three vibration springs 10, and the bottom walls of the three vibration springs 10 are fixedly connected to the detection plate 11. The first bottom plate 5 and the second bottom plate 6 are both provided with a tilt detection mechanism, and the two sleeves 92 are both provided with an amplitude adjustment mechanism.

[0032] The amplitude adjustment mechanism includes a first electromagnet 96 fixedly connected to the side wall of the sleeve 92 and close to one side of the first eccentric wheel 7, the left and right side walls of the first electromagnet 96 are fixedly connected to the second spring 93, the left side wall of the first eccentric wheel 7 is fixedly connected to the first permanent magnet 94, the right side wall of the first eccentric wheel 7 is fixedly connected to the second permanent magnet 95, the first electromagnet 96 and the second permanent magnet 95 are fixedly connected to the second spring 93; the downward movement of the hydraulic lifting mechanism drives the first spring 32 to expand and contract, thereby squeezing the piezoelectric block 52, and the downward movement of the first spring 32 acts on the piezoelectric block 52 to generate a piezoelectric current. At this time, the magnitude of the piezoelectric current on the left and right sides is recorded to realize the measurement of the inclination of the base surface to be measured. When the piezoelectric current on the left is greater than the piezoelectric current on the right, the left second spring 93 is in the state of expansion and contraction. The horizontal height of one base plate 5 is smaller than that of the second base plate 6 on the right side. At this time, the first electromagnet 96 inside the first eccentric wheel 7 on the left side is controlled to be turned on. The magnetic force generated cooperates with the first permanent magnet 94 and the second permanent magnet 95 on the left and right sides to pull the second spring 93, thereby adjusting the deflection angle of the first eccentric wheel 7. The inclination degree of the left and right base plates is detected by the cooperation between the piezoelectric block 52, the first through hole 51, and the hydraulic rod 31. At the same time, the cooperation between the first electromagnet 96, the first permanent magnet 94, the second permanent magnet 95 and the second spring 93 automatically adjusts the amplitude of both sides according to the different inclination degrees of the base surface, thereby solving the problem of detection error caused by the inclination of the base surface during the vibration detection process of the prior art.

[0033] The amplitude adjustment mechanism also includes a permanent magnet sleeve 97 fixedly connected to the outer wall of the output shaft 91.

[0034] The inner wall of the sleeve 92 is slidably connected to a connecting rod 90. A second electromagnet 99 is fixedly connected to one end of the connecting rod 90, near the permanent magnet sleeve 97. A third spring 98 is fixedly connected to the outer side of the second electromagnet 99. The other end of the third spring 98 is fixedly connected to the inner wall of the sleeve 92. When the motor 9 and the second electromagnet 99 are turned on, the magnetic force generated attracts the permanent magnet sleeve 97 sleeved on the side wall of the output shaft 91, thereby stretching the third spring 98, causing the connecting rod 90 to connect the output shaft 91 and the sleeve 92. At this point, the current of the first electromagnet 96 is kept synchronized with the piezoelectric current generated by the hydraulic mechanism, causing the output shaft 91 and the sleeve 92 to rotate synchronously. The rotation of the motor 9 drives the output shafts 91 on both sides to rotate synchronously. At this time, the two eccentric wheels, after adjustment, rotate synchronously with the output shaft 91 according to the adjusted opening overlap. During the rotation process, the opening overlap of the first eccentric wheel 7 and the second eccentric wheel 8 is adjusted according to the inclination of the base surface, thereby achieving effective protection for the output shaft 91, reducing the loss of the eccentric wheel and increasing the service life of the eccentric wheel.

[0035] The first hydraulic mechanism includes a hydraulic rod 31 slidably connected to the bottom wall of the first support column 3. A first spring 32 is fixedly connected to the outside of the hydraulic rod 31 and located on the bottom wall of the first support column 3. The second hydraulic mechanism has the same structure as the first hydraulic mechanism. First, the bottom walls of the first and second bottom plates 5 and 6 are placed on the surface to be tested. Then, the hydraulic lifting mechanism is activated, causing the hydraulic rod 31 to move downward along the first and second support columns 3 and 4, thereby lowering the top plate 1 until the bottom wall of the test plate 11 contacts the surface to be tested.

[0036] The tilt detection mechanism includes a first through-hole 51 defined within the first base plate 5. A piezoelectric block 52 is fixedly connected to the interior of the first through-hole 51, and the distal end of the first spring 32 is fixedly connected to the piezoelectric block 52. The piezoelectric current generated by the piezoelectric blocks 52 on both sides during detection controls the activation of the first electromagnet 96, thereby adjusting the deflection angle of the first eccentric 7. The vibration amplitude is adjusted by the overlap of the blade openings of the two eccentrics, thereby automatically adjusting the amplitude according to the degree of inclination of the base surface to be measured.

[0037] The connecting rods 90 are arranged at equal intervals along the inner wall of the sleeve 92, and the length of the connecting rods 90 is two-thirds of the thickness of the sleeve 92. This ensures that the connecting rods 90 can slide along the inside of the second through hole 921 and drive the eccentric wheel to rotate.

[0038] The first through holes 51 are arranged at equal intervals along the circumference of the hydraulic rod 31, so that the pressure is evenly distributed and the piezoelectric current is constant.

[0039] The magnetism of the first electromagnet 96 is the same as that of the first permanent magnet 94, and the magnetism of the first permanent magnet 94 is different from that of the second permanent magnet 95, so that the first eccentric wheel 7 is deflected.

[0040] The inner wall of the sleeve 92 is provided with a second through hole 921 , and the diameter of the second through hole 921 is larger than the diameter of the connecting rod 90 , so as to ensure that the connecting rod 90 can slide along the inside of the second through hole 921 .

[0041] The number of the second through holes 921 is consistent with the number of the connecting rods 90, so that the electromagnetic attraction force causes the connecting rods 90 to drive the first eccentric wheel 7 to rotate.

[0042] The method of use (working principle) of the present invention is as follows:

[0043] At the beginning, the bottom walls of the first base plate 5 and the second base plate 6 are placed on the base surface to be tested, and then the hydraulic lifting mechanism is turned on to make the hydraulic rod 31 move downward along the first support column 3 and the second support column 4, thereby realizing the downward movement of the top plate 1 until the bottom wall of the detection plate 11 contacts the base surface to be tested; at this time, the downward movement of the hydraulic lifting mechanism drives the first spring 32 to expand and contract, thereby squeezing the piezoelectric block 52, and the downward movement of the first spring 32 acts on the piezoelectric block 52 to generate a piezoelectric current. At this time, the magnitude of the piezoelectric current on the left and right sides is recorded to realize the measurement of the inclination of the base surface to be tested. When the piezoelectric current on the left is greater than the piezoelectric current on the right, the horizontal height of the first base plate 5 on the left is less than the horizontal height of the second base plate 6 on the right. At this time, the first electromagnet 96 inside the first eccentric wheel 7 on the left is controlled to be turned on, and the magnetic force generated, in cooperation with the first permanent magnet 94 and the second permanent magnet 95 on the left and right sides, pulls the second spring 93, thereby achieving the adjustment of the deflection angle of the first eccentric wheel 7, and here the current of the first electromagnet 96 is kept synchronized with the piezoelectric current generated by the hydraulic mechanism; similarly, when the piezoelectric current on the right and left sides is smaller than the piezoelectric current on the right side, the above-mentioned synchronous adjustment is achieved, and the overlap of the openings of the two eccentric wheels can be adjusted according to the change of the inclination angle. The amplitude can be controlled by the size of the overlap of the openings of the eccentric wheels on both sides, thereby achieving the effect of timely adjusting the inclination of both sides according to the inclined base surface.

[0044] Then, the motor 9 and the second electromagnet 99 are turned on. The magnetic force generated attracts the permanent magnet sleeve 97 sleeved on the side wall of the output shaft 91, thereby stretching the third spring 98, so that the connecting rod 90 connects the output shaft 91 and the sleeve 92, so that the output shaft 91 and the sleeve 92 rotate synchronously. The rotation of the motor 9 drives the output shafts 91 on both sides to rotate synchronously. At this time, the two eccentric wheels after adjustment rotate synchronously with the output shaft 91 according to the adjusted opening overlap. During the rotation process, the opening overlap of the first eccentric wheel 7 and the second eccentric wheel 8 is adjusted according to the inclination of the base surface, thereby achieving effective protection for the output shaft 91, reducing the loss of the eccentric wheel and increasing the service life of the eccentric wheel.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] 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 vibration detection device, comprising a top plate (1), characterized in that: The bottom wall of the top plate (1) is fixedly connected to two connecting columns (2), the other ends of the two connecting columns (2) are fixedly connected to a motor (9), the left side of the bottom wall of the top plate (1) is fixedly connected to a first support column (3), the right side of the bottom wall of the top plate (1) is fixedly connected to a second support column (4), the bottom end of the first support column (3) is slidably connected to a first hydraulic mechanism, the bottom end of the first hydraulic mechanism is fixedly connected to a first bottom plate (5), the bottom end of the second support column (4) is slidably connected to a second hydraulic mechanism, and the bottom end of the second hydraulic mechanism is fixedly connected to a second bottom plate (6); The left and right sides of the motor (9) are fixedly connected to output shafts (91), the left and right ends of the output shaft (91) are sleeved with sleeves (92), the left side wall of the left sleeve (92) is rotatably connected to the first eccentric wheel (7), and the right side wall of the right sleeve (92) is rotatably connected to the second eccentric wheel (8), the bottom wall of the motor (9) is fixedly connected to three vibration springs (10), and the bottom walls of the three vibration springs (10) are fixedly connected to a detection plate (11), the first bottom plate (5) and the second bottom plate (6) are both provided with a tilt detection mechanism, and the two sleeves (92) are both provided with an amplitude adjustment mechanism; The amplitude adjustment mechanism includes a first electromagnet (96) fixedly connected to the side wall of the sleeve (92) and close to one side of the first eccentric wheel (7), the left and right side walls of the first electromagnet (96) are fixedly connected to the second spring (93), the left side wall of the first eccentric wheel (7) is fixedly connected to the first permanent magnet (94), the right side wall of the first eccentric wheel (7) is fixedly connected to the second permanent magnet (95), and the first permanent magnet (94) and the second permanent magnet (95) are both fixedly connected to the second spring (93); The amplitude adjustment mechanism further includes a permanent magnet sleeve (97) fixedly connected to the outer wall of the output shaft (91); the inner wall of the sleeve (92) is slidably connected to a connecting rod (90); one end of the connecting rod (90) and a side close to the permanent magnet sleeve (97) is fixedly connected to a second electromagnet (99); the outer side of the second electromagnet (99) is fixedly connected to a third spring (98); the other end of the third spring (98) is fixedly connected to the inner wall of the sleeve (92); The first hydraulic mechanism comprises a hydraulic rod (31) slidably connected to the bottom wall of the first support column (3), a first spring (32) is fixedly connected to the outside of the hydraulic rod (31) and located on the bottom wall of the first support column (3), and the second hydraulic mechanism has the same structure as the first hydraulic mechanism; The tilt detection mechanism comprises a first through hole (51) provided inside the first base plate (5), a piezoelectric block (52) being fixedly connected inside the first through hole (51), and an end of the first spring (32) being fixedly connected to the piezoelectric block (52); At the beginning, the bottom walls of the first bottom plate (5) and the second bottom plate (6) are placed on the base surface to be tested, and then the hydraulic lifting mechanism is turned on so that the hydraulic rod (31) moves downward along the first support column (3) and the second support column (4), thereby realizing the downward movement of the top plate (1) until the bottom wall of the detection plate (11) contacts the base surface to be tested; at this time, the downward movement of the hydraulic lifting mechanism drives the first spring (32) to expand and contract, thereby squeezing the piezoelectric block (52), and the downward movement of the first spring (32) acts on the piezoelectric block (52) to generate a piezoelectric current, and the piezoelectric current generated by the piezoelectric blocks (52) on both sides during detection is achieved to control the opening of the first electromagnet (96) to achieve the adjustment of the deflection angle of the first eccentric wheel (7).

2. A construction engineering quality vibration detection device according to claim 1, characterized in that: The connecting rods (90) are arranged at equal intervals along the inner wall of the sleeve (92), and the length of the connecting rods (90) is two-thirds of the wall thickness of the sleeve (92).

3. A construction engineering quality vibration detection device according to claim 1, characterized in that: The first through holes (51) are arranged at equal intervals along the circumference of the hydraulic rod (31).

4. A construction engineering quality vibration detection device according to claim 1, characterized in that: The magnetism of the first electromagnet (96) is the same as that of the first permanent magnet (94), and the magnetism of the first permanent magnet (94) is different from that of the second permanent magnet (95).

5. A construction engineering quality vibration detection device according to claim 1, characterized in that: A second through hole (921) is formed on the inner wall of the sleeve (92), and the diameter of the second through hole (921) is greater than the diameter of the connecting rod (90).

6. A construction engineering quality vibration detection device according to claim 5, characterized in that: The number of the second through holes (921) is consistent with the number of the connecting rods (90).

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