A concrete strength detection device and method based on water conservancy project supervision

Abstract

The present invention relates to the technical field of concrete strength detection, and specifically discloses a concrete strength detection device and method based on water conservancy project supervision, including a pressure-bearing mechanism arranged at the bottom inner side of a machine body for cooperating with a downward pressure mechanism to perform compressive strength detection on a concrete specimen. The present invention drives a limiting mechanism arranged in a ring array to clamp the concrete specimen from the side wall of the concrete specimen through a driving mechanism, so that the center of the concrete specimen is vertically aligned with the center of a supporting plate, so that the downward pressure of the concrete specimen by the downward pressure mechanism is stably distributed on the concrete specimen, thereby improving the accuracy of detection, and eliminating the need for repeated adjustments by staff, thereby improving detection efficiency. The position of each limiting plate is easily grasped through a monitoring component and an identification component, so that the position of the offset limiting plate can be adjusted through an adjustment component, which is convenient for long-term detection of concrete compressive strength.

Description

Technical Field

[0001] The invention relates to the technical field of concrete strength detection, and in particular to a concrete strength detection device and method based on water conservancy project supervision. Background Art

[0002] During the construction of water conservancy projects, strength tests will be carried out on concrete used in water conservancy project construction to determine whether the concrete strength meets the use requirements. The methods for concrete strength testing include the specimen method and the rebound method. Among them, the specimen method is widely used in concrete strength testing due to its advantages such as reliable and accurate results and the ability to reflect the actual strength level of concrete.

[0003] Publication No. CN110487636B discloses a concrete compressive strength testing device and a testing method thereof. The problem raised in the background technology is that the pressure value obtained by the existing testing equipment during the testing process has a large deviation in the test result due to the placement problem of the concrete test block, the problem of the equipment's own testing block, etc., and the test result is inaccurate. The angular velocity is different through the meshing of gears, which avoids the extrusion plate pressing down too fast and affecting the test result. The partition is used to ensure that the concrete to be tested is subjected to uniform and stable force during the testing process, and at the same time the concrete is fully and effectively fixed, ensuring the accuracy of the test.

[0004] Based on the existing technology, there are the following problems:

[0005] When conducting testing on the existing concrete compressive strength testing device, the staff usually manually aligns the center of the concrete specimen with the center of the lower pressure plate vertically, so that the center of the upper pressure plate is vertically aligned with the center of the concrete specimen, so that the upper pressure plate can apply pressure to the concrete specimen stably and evenly during the test. However, in actual testing, the vertical alignment error of the concrete specimen is large due to manual operation, which affects the accuracy of the test. Although the above application documents improve the accuracy of the test by controlling the downward pressure speed, etc., they cannot align the concrete specimen with the center of the lower pressure plate well, which reduces the accuracy of the test and has certain shortcomings. In order to solve the above problems, a concrete strength testing device and method based on water conservancy project supervision are proposed. Summary of the invention

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a concrete strength testing device and method based on water conservancy project supervision, which is convenient for vertically aligning the center of the concrete specimen with the center of the upper pressure plate, so that the upper pressure plate can apply pressure to the concrete specimen stably and evenly, improve the accuracy of the detection, and facilitate long-term detection and use.

[0007] To achieve the above purpose, the present invention is implemented through the following technical solutions: A concrete strength detection device based on water conservancy project supervision, including a body, a pressing mechanism arranged on the top of the body for pressing down a concrete test piece, and a control console arranged on the outside of the body, and also includes a pressure-bearing mechanism arranged at the bottom of the inner side of the body for cooperating with the pressing mechanism to perform compressive strength detection on the concrete test piece, and the pressure-bearing mechanism includes:

[0008] The pressure-bearing platform is arranged on the inner side of the machine body, a mounting through hole is provided on the top of the pressure-bearing platform, a supporting assembly for placing the concrete specimen is arranged on the top of the pressure-bearing platform and outside the mounting through hole, and a limiting mechanism arranged in a circular array is provided on the side wall of the pressure-bearing platform to limit the position of the concrete specimen at the top of the supporting assembly from the side wall of the concrete specimen, and the supporting assembly includes:

[0009] The supporting plate is sleeved on the top of the pressure platform and is used to place the concrete specimen. The top of the supporting plate is provided with two mutually perpendicular symmetry lines, and both symmetry lines pass through the top center of the supporting plate so that the symmetry lines point to the end angles of the concrete specimen. The limiting mechanism includes:

[0010] The limit plate is movably arranged on the side wall of the pressure platform and extends to the top of the pressure platform. A monitoring component for monitoring the force of the extruded concrete specimen is arranged on one side of the limit plate located at the top of the pressure platform.

[0011] Furthermore, the pressure-bearing mechanism further comprises:

[0012] A pressure bearing seat is fixedly arranged at the inner bottom of the machine body, and a pressure bearing column arranged in a circular array is fixedly arranged on the top of the pressure bearing seat, and the top of the pressure bearing column is fixedly connected to the bottom of the pressure bearing platform, and a driving mechanism for driving the limit plate to move is arranged inside the pressure bearing seat;

[0013] The limiting mechanism also includes:

[0014] A movable through hole is provided on the side wall of the pressure platform and is connected to the installation through hole. A threaded rod is rotatably provided on the inner wall of the movable through hole. A threaded tube extending to the outside of the pressure platform is threadedly connected to the side wall of the threaded rod. One end of the threaded tube located outside the pressure platform is fixedly connected to the lower end of the limit plate. The outer wall of the threaded tube is slidably connected to the inner wall of the movable through hole to limit the threaded tube.

[0015] The bevel gear is arranged on the side wall of one end of the threaded rod away from the limiting plate and is located in the mounting through hole. The driving mechanism drives the bevel gear to rotate to drive the limiting plate to move. An identification component for judging the position of the limiting plate is arranged on the inner side of the limiting plate.

[0016] Furthermore, the driving mechanism comprises:

[0017] The servo motor is fixed inside the pressure seat. The output shaft of the servo motor is fixed with a rotating shaft through a coupling. A bevel gear plate meshing with the bevel gear is fixed on the top of the rotating shaft. The meshing transmission of the bevel gear plate and the bevel gear, and the cooperation of the threaded rod and the threaded tube thread transmission make the limit plates arranged in a ring array approach or move away from each other. An adjustment component for adjusting the meshing or separation of the bevel gear and the bevel gear is provided at the end where the threaded rod and the bevel gear are close to each other, and a damping component for limiting the rotating shaft is provided on the side wall of the rotating shaft.

[0018] Further, the adjustment component includes:

[0019] The mounting shell is fixedly arranged at one end of the bevel gear close to the threaded rod, and the side of the mounting shell close to the threaded rod is designed to be open;

[0020] The mounting rod is fixedly arranged at one end of the threaded rod close to the bevel gear, and the side wall of the mounting rod is provided with a first slide groove arranged in a circular array, and a first slider is placed inside the first slide groove, and the top of the first slider is fixedly connected to the inner side wall of the mounting shell, so that the mounting shell can move under the limitation of the first slider and the first slide groove, and a first spring is sleeved inside the mounting shell and on the side of the threaded rod close to the bevel gear to elastically support the bevel gear.

[0021] Furthermore, the monitoring component comprises:

[0022] A fixed plate is fixed to one side of the limit plate located at the top of the pressure platform. A first groove is opened on the side of the fixed plate away from the limit plate. A pressure sensor extending outside the first groove is fixedly provided inside the first groove. Moving rods are sleeved on the side walls of the fixed plate and near the end corners. A stop plate and a clamping block are fixedly provided at both ends of the moving rod, respectively. A contact plate is fixedly provided on the side of the stop plate away from the fixed plate. The contact plate contacts the concrete specimen to squeeze the contact plate and the pressure sensor, thereby monitoring the force of squeezing the concrete specimen. The clamping block cooperates with the fixed plate to prevent the moving rod from detaching from the fixed plate.

[0023] Further, the identification component includes:

[0024] A guide rod is fixedly arranged on the inner side of the limit plate, a guide groove in which the guide rod is sleeved is provided on the side wall of the pressure platform, so that the guide rod moves along the guide groove with the limit plate, a second groove is provided on the top of the guide rod, and a scale plate is fixedly arranged inside the second groove;

[0025] The marking block is fixed on the side wall of the pressure platform and is located outside the guide groove. The marking block points to the scale plate to grasp the position of the limit plate.

[0026] Further, the damping assembly comprises:

[0027] The bracket is fixedly arranged on the inner wall of the mounting through hole, a mounting sleeve is fixedly arranged on the top of the bracket, a spring is arranged on the inner wall of the mounting sleeve, and two ends of the spring are respectively fixedly connected to the side wall of the rotating shaft and the inner wall of the mounting sleeve, so as to limit the rotation of the rotating shaft after the servo motor stops driving the rotating shaft;

[0028] The installation through grooves are arranged in a circular array on the side wall of the installation sleeve.

[0029] Furthermore, the damping assembly further comprises:

[0030] A ratchet wheel is fixedly sleeved on the side wall of the rotating shaft and is located in the mounting sleeve;

[0031] A ratchet is rotatably disposed on the top of the bracket and is located in one of the mounting slots. A second spring is fixedly disposed on the top of the bracket. One end of the second spring away from the bracket is fixedly connected to the inner side of the ratchet so that the ratchet engages with the ratchet wheel, thereby limiting the rotation of the rotating shaft. A pull ring is fixedly disposed on the outer side of the ratchet;

[0032] The buckle is fixedly arranged on the outer side of the bracket, and the middle end of the side wall of the buckle is designed to be concave inwards to limit the pull ring.

[0033] Furthermore, the bottom of the pressure platform is provided with limiting grooves arranged in a circular array, and the limiting grooves are connected to the mounting through holes, and the limiting grooves are staggered with the end corners of the bracket;

[0034] The upper end and the lower end of the side wall of the rotating shaft are rotatably connected to the top of the bracket and the top of the pressure bearing seat respectively, and the bevel gear disc is located at the top of the mounting sleeve;

[0035] The limit plate is designed in a bent shape, and the inner wall of the movable through hole is provided with a second slide groove arranged in a circular array, and a second slider is placed inside the second slide groove, and the inner side of the second slider is fixedly connected to the outer wall of the threaded tube;

[0036] The supporting assembly further comprises:

[0037] The insertion rods are fixedly arranged at the bottom of the support plate in a circular array. The top of the pressure platform and the outer side of the installation through hole are provided with slots arranged in a circular array, and the inner walls of the slots are adapted to the side walls of the insertion rods.

[0038] The present invention also provides a method for using the concrete strength detection device based on water conservancy project supervision. The method adopts the concrete strength detection device based on water conservancy project supervision, and comprises the following steps:

[0039] S1: Place the concrete specimen on top of the support plate;

[0040] S2: After the concrete specimen is placed, the concrete specimen is limited by a limiting mechanism so that the center of the concrete specimen is vertically aligned with the center of the supporting plate;

[0041] S3: After the position limiting of the concrete is completed, the limiting plate is moved away from the concrete specimen, and then the compressive strength test of the concrete specimen is performed through the pressing mechanism.

[0042] The present invention provides a concrete strength detection device and method based on water conservancy project supervision. Compared with the prior art, it has the following beneficial effects:

[0043] 1. The present invention drives the limiting mechanisms arranged in a ring array through a driving mechanism to clamp the concrete specimen from the side wall of the concrete specimen, so as to facilitate the vertical alignment of the center of the concrete specimen with the center of the supporting plate, so that the downward pressure of the pressing mechanism on the concrete specimen is stably distributed on the concrete specimen, thereby improving the accuracy of the detection, and eliminating the need for repeated adjustments by staff, thereby improving the detection efficiency. The position of each limiting plate is easily grasped through the monitoring component and the identification component, and the position of the offset limiting plate can be adjusted through the adjustment component, which is convenient for long-term detection of concrete compressive strength.

[0044] 2. The present invention makes the moving distance of the limit plate consistent by meshing transmission of the bevel toothed disk and the bevel gear, and threaded transmission of the threaded rod and the threaded tube, thereby facilitating vertical alignment of the center of the concrete specimen with the center of the supporting plate. The meshing transmission of the bevel toothed disk and the bevel gear facilitates the meshing or separation of the bevel toothed disk and the bevel gear, thereby facilitating the subsequent individual adjustment of the rotation of each threaded rod, so as to facilitate the individual adjustment of the position of each limit plate.

[0045] 3. The present invention uses the pressure sensors of the monitoring components to extrude the concrete specimen from four sides of the concrete specimen, so as to judge whether the concrete specimen is located at the center of the supporting plate and to align the supporting plate and the concrete specimen. When the values ​​monitored by one or more pressure sensors are abnormal, it indicates that the squeezing force of the contact plate at the corresponding position on the concrete specimen is abnormal, indicating that the center of the concrete specimen is not aligned and the position of the contact plate at the corresponding position is offset, thereby facilitating the staff to grasp the detection situation.

[0046] 4. The present invention facilitates the separation of the bevel gear and the bevel toothed disk through the adjustment component, thereby facilitating the adjustment of the offset limit plate, and is convenient for long-term use. The ratchet and pawl of the damping component prevent the shaft from reversing, thereby preventing the bevel toothed disk from reversing. When the shaft stops rotating through the spring, the shaft has a tendency to rotate in the opposite direction under the reverse action of the spring. Therefore, combined with the self-locking of the ratchet and pawl, the shaft is in a relatively stable state, reducing the rotation of the bevel toothed disk and the remaining bevel gears when or after one of the bevel gears is separated from the bevel toothed disk, and is convenient for actual adjustment and use.

[0047] 5. The present invention facilitates the grasping of the position of the limit plate through the identification component and the monitoring component, facilitates the staff to judge the position of the concrete specimen, and facilitates the adjustment component to adjust the position of the limit plate. The damping component is adjusted through the limiting groove and the pressure-bearing column, and the operation of the adjustment component is facilitated by the installation through hole and the supporting component, thereby facilitating the actual operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of the concrete strength detection device based on water conservancy project supervision of the present invention;

[0049] Figure 2 It is a schematic diagram of the pressure bearing mechanism structure of the present invention;

[0050] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressure bearing seat, the pressure bearing platform and the machine body of the present invention;

[0051] Figure 4 It is a schematic cross-sectional structure diagram of the pressure bearing seat and the pressure bearing platform of the present invention;

[0052] Figure 5 It is a schematic diagram of the structure of the driving mechanism, threaded rod, limiting mechanism and limiting plate of the present invention;

[0053] Figure 6 It is a schematic diagram of the cross-sectional structure of the limiting mechanism and the mounting shell of the present invention;

[0054] Figure 7 It is a schematic diagram of the structure of the identification component of the present invention;

[0055] Figure 8 For the present invention Figure 7 A is a schematic diagram of the enlarged structure of the middle part;

[0056] Fig. 9 It is a schematic diagram of the explosion structure of the monitoring component of the present invention;

[0057] Fig.10 It is a schematic diagram of the structure of the damping assembly of the present invention;

[0058] Fig.11It is a schematic diagram of the cross-sectional structure of the installation sleeve of the present invention;

[0059] Fig.12 It is a schematic diagram of the mounting sleeve, mounting slot and spring structure of the present invention;

[0060] Fig.13 For the present invention Fig.11 A schematic diagram of the enlarged structure of B;

[0061] Fig.14 It is a schematic diagram of the supporting assembly structure of the present invention;

[0062] Fig.15 It is a schematic diagram of the cross-sectional structure of the pressure-bearing platform of the present invention;

[0063] Fig.16 It is a schematic diagram of the structure of the pressure-bearing column, the pressure-bearing platform and the limiting groove of the present invention.

[0064] Reference numerals in the above drawings: 1, machine body; 2, pressing mechanism; 3, pressure-bearing mechanism; 4, control console;

[0065] 31. Pressure bearing seat; 32. Limiting mechanism; 33. Supporting assembly; 34. Pressure bearing platform; 35. Pressure bearing column; 36. Driving mechanism; 37. Mounting through hole; 38. Damping assembly;

[0066] 321, second slide groove; 322, limiting groove; 323, threaded rod; 324, limiting plate; 325, adjustment assembly; 3251, mounting shell; 3252, first slide groove; 3253, mounting rod; 326, bevel gear; 327, identification assembly; 3271, guide rod; 3272, scale plate; 3273, identification block; 328, monitoring assembly; 3281, contact plate; 3282, pressure sensor; 3283, butt plate; 3284, block; 3285, moving rod; 3286, fixing plate; 329, moving through hole;

[0067] 331, support plate; 332, insertion rod; 333, symmetry line;

[0068] 361, servo motor; 362, bevel gear disc;

[0069] 381. Installation sleeve; 382. Bracket; 383. Ratchet; 384. Spring; 385. Installation slot; 386. Ratchet; 387. Pull ring; 388. Buckle. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0071] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a concrete strength testing device based on water conservancy project supervision, comprising a machine body 1, a pressing mechanism 2 arranged on the top of the machine body 1 for pressing down a concrete specimen, and a control console 4 arranged on the outside of the machine body 1, the pressing mechanism 2 usually drives a threaded rod 323 to move vertically by hydraulic pressure, so that the threaded rod 323 drives the lower pressing plate to move vertically, thereby applying pressure to the concrete specimen for water conservancy engineering, and a pressure sensor 3282 for monitoring the downward pressure is arranged at the connection between the threaded rod 323 and the lower pressing plate, so as to facilitate the grasp of the compressive strength of the concrete specimen, and the center of the lower pressing plate is vertically aligned with the center of the plate for placing the concrete specimen at its bottom, that is, the center of the supporting plate 331 in the present application, the above are all prior arts, which will not be described in detail here, and also includes a pressure bearing mechanism 3 arranged at the bottom of the inner side of the machine body 1 for cooperating with the pressing mechanism 2 to perform compressive strength testing on the concrete specimen, the pressure bearing mechanism 3 includes:

[0072] A pressure platform 34 is arranged on the inner side of the machine body 1. A mounting through hole 37 is provided on the top of the pressure platform 34. A supporting assembly 33 for placing a concrete specimen is provided on the top of the pressure platform 34 and outside the mounting through hole 37. A limiting mechanism 32 arranged in a circular array is provided on the side wall of the pressure platform 34 to limit the position of the concrete specimen at the top of the supporting assembly 33 from the side wall of the concrete specimen.

[0073] The pressure bearing mechanism 3 also includes:

[0074] The pressure bearing seat 31 is fixedly arranged at the inner bottom of the body 1, and the top of the pressure bearing seat 31 is fixedly provided with pressure bearing columns 35 arranged in a circular array, and the top of the pressure bearing column 35 is fixedly connected to the bottom of the pressure bearing platform 34, and the inside of the pressure bearing seat 31 is provided with a driving mechanism 36 for driving the limit plate 324 to move;

[0075] See also Fig.14 , the supporting assembly 33 comprises:

[0076] The supporting plate 331 is sleeved on the top of the pressure platform 34 and is used to place the concrete specimen. Two mutually perpendicular symmetry lines 333 are set on the top of the supporting plate 331, and the two symmetry lines 333 pass through the top center of the supporting plate 331 so that the symmetry lines 333 point to the end corners of the concrete specimen.

[0077] The supporting assembly 33 further includes:

[0078] The insertion rods 332 are fixed in a circular array at the bottom of the support plate 331 . The top of the pressure platform 34 and the outer side of the mounting through hole 37 are provided with slots arranged in a circular array, and the inner walls of the slots are adapted to the side walls of the insertion rods 332 .

[0079] In the specific implementation, the insertion rod 332 is placed in the slot, that is, the support plate 331 is installed on the top of the pressure platform 34, so that the concrete specimen is placed on the top of the support plate 331 later, so as to facilitate the compressive strength test of the concrete specimen;

[0080] By setting the symmetry line 333 to point to the end corner of the concrete specimen, it is convenient for the staff to judge whether the position of the concrete specimen is correct after the limiting mechanism 32 has limited the concrete specimen from the side wall of the concrete specimen, which is convenient for subsequent testing;

[0081] The slot and the insertion rod 332 facilitate installation and removal of the support plate 331, facilitate placement of concrete specimens, and facilitate adjustment of the meshing or separation of the bevel gear 326 and the bevel gear disc 362 after removing the support plate 331, thereby facilitating actual operation.

[0082] See also Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.15 , the limiting mechanism 32 includes:

[0083] The limiting plate 324 is movably disposed on the side wall of the pressure platform 34 and extends to the top of the pressure platform 34. A monitoring component 328 for monitoring the force of the extruded concrete specimen is disposed on one side of the limiting plate 324 located at the top of the pressure platform 34.

[0084] The limiting mechanism 32 also includes:

[0085] The movable through hole 329 is provided on the side wall of the pressure platform 34 and is connected to the mounting through hole 37. The inner wall of the movable through hole 329 is rotatably provided with a threaded rod 323. The side wall of the threaded rod 323 is threadedly connected with a threaded tube extending to the outside of the pressure platform 34. One end of the threaded tube located outside the pressure platform 34 is fixedly connected to the lower end of the limiting plate 324. The outer wall of the threaded tube is slidably connected to the inner wall of the movable through hole 329 to limit the threaded tube.

[0086] The bevel gear 326 is arranged on the side wall of one end of the threaded rod 323 away from the limiting plate 324 and is located in the mounting hole 37. The driving mechanism 36 drives the bevel gear 326 to rotate to drive the limiting plate 324 to move. An identification component 327 for judging the position of the limiting plate 324 is arranged on the inner side of the limiting plate 324.

[0087] See also Figure 4 , the driving mechanism 36 comprises:

[0088] The servo motor 361 is fixed inside the pressure seat 31. The output shaft of the servo motor 361 is fixed with a rotating shaft through a coupling. A bevel gear disk 362 meshing with a bevel gear 326 is fixed on the top of the rotating shaft. The meshing transmission of the bevel gear disk 362 and the bevel gear 326, and the cooperation of the threaded rod 323 and the threaded tube thread transmission make the limiting plates 324 arranged in a ring array approach or move away from each other. An adjustment component 325 for adjusting the meshing or separation of the bevel gear 326 and the bevel gear disk 362 is provided at one end where the threaded rod 323 and the bevel gear 326 are close to each other. A damping component 38 for limiting the rotating shaft is provided on the side wall of the rotating shaft.

[0089] The upper end and the lower end of the side wall of the rotating shaft are rotatably connected to the top of the bracket 382 and the top of the pressure-bearing seat 31 respectively, and the bevel gear plate 362 is located at the top of the mounting sleeve 381 .

[0090] In the specific implementation, the servo motor 361 is started, and the output shaft of the servo motor 361 drives the rotating shaft and the bevel gear plate 362 to rotate through the coupling, thereby driving the bevel gear 326 to rotate, and the bevel gear 326 drives the threaded rod 323 to rotate through the adjustment component 325, so that the threaded tube moves along the movable through hole 329 under the limit of the second slide groove 321 and the second slider, thereby driving the limit plate 324 and the monitoring component 328 to move, so that the limit plate 324 and the like can synchronously clamp the concrete specimen from the four side walls of the concrete specimen, and make the transmission efficiency consistent, so that the clamping distance of the limit plate 324 and the like on the concrete specimen is the same. When the clamped concrete specimen is tightened, the center of the concrete specimen is vertically aligned with the center of the supporting plate 331, so that the center of the lower pressure plate is vertically aligned with the center of the concrete specimen, so that the downward pressure of the lower pressure plate on the concrete specimen is stably distributed on the concrete specimen, thereby improving the accuracy of the detection, and there is no need for the staff to make repeated adjustments, and the error is large, thereby improving the detection efficiency;

[0091] By making the bevel gear plate 362 and the bevel gear 326 mesh with each other and the threaded transmission of the threaded rod 323 and the threaded tube, the limit plates 324 can be synchronously moved closer to or farther from each other, and the transmission efficiency can be made consistent, so that the moving distance of the limit plates 324 is consistent, thereby facilitating the vertical alignment of the center of the concrete specimen with the center of the supporting plate 331;

[0092] Through the meshing transmission of the bevel gear 362 and the bevel gear 326, it is convenient to synchronously drive multiple bevel gears 326 to rotate, and it is convenient to mesh or separate the bevel gear 362 and the bevel gear 326, so as to facilitate the subsequent individual adjustment of the rotation of each threaded rod 323, so as to facilitate the individual adjustment of the position of each limit plate 324.

[0093] See also Fig. 9 , the monitoring component 328 includes:

[0094] The fixing plate 3286 is fixed on one side of the limiting plate 324 located at the top of the pressure platform 34. A first groove is provided on the side of the fixing plate 3286 away from the limiting plate 324. A pressure sensor 3282 extending outside the first groove is fixedly provided inside the first groove. A moving rod 3285 is sleeved on the side walls of the fixing plate 3286 and near the end corners. A stop plate 3283 and a block 3284 are fixed on both ends of the moving rod 3285, respectively. A contact plate 3281 is fixed on the side of the stop plate 3283 away from the fixing plate 3286. The contact plate 3281 contacts the concrete specimen to squeeze the contact plate 3281 and the pressure sensor 3282, so as to monitor the force of squeezing the concrete specimen. The block 3284 cooperates with the fixing plate 3286 to prevent the moving rod 3285 from separating from the fixing plate 3286.

[0095] In specific implementation, when the driving mechanism 36 drives the limit plate 324 to move, the limit plate 324 drives the fixed plate 3286 to approach the concrete specimen, so as to drive the abutment plate 3283 and the contact plate 3281 to approach the concrete specimen. As the concrete specimen is continuously moved, the contact plate 3281 continuously squeezes the concrete specimen, so that the center of the concrete specimen gradually aligns vertically with the center of the supporting plate 331, which is convenient for actual detection and use. While the concrete specimen is continuously squeezed, the concrete specimen is subjected to a directional force, and squeezes the contact plate 3281 and the abutment plate 3283, so that the contact plate 3281 and the abutment plate 3283 squeeze the pressure sensor 3282, so as to monitor the squeezing force of the concrete specimen. The values ​​of the pressure sensors 3282 on the four sides of the concrete specimen are convenient for judging whether the concrete specimen is located at the center of the supporting plate 331, so as to facilitate the alignment of the supporting plate 331 and the concrete specimen.

[0096] When the values ​​monitored by one or more pressure sensors 3282 are abnormal, it indicates that the pressing force of the contact plate 3281 at the corresponding position on the concrete specimen is abnormal, indicating that the center of the concrete specimen is not aligned, and the position of the contact plate 3281 at the corresponding position is offset, so that the staff can understand the detection situation.

[0097] The moving rod 3285 facilitates the movement of the push plate 3283 and the contact plate 3281 along the side wall of the fixed plate 3286, thereby facilitating the squeezing of the pressure sensor 3282, and the blocking block 3284 prevents the moving rod 3285 from being separated from the fixed plate 3286, thereby improving the stability of the push plate 3283 and the contact plate 3281.

[0098] When the monitoring component 328 and the limit plate 324 have completed the positioning of the concrete specimen, the lower pressure plate is brought into contact with the top of the concrete specimen. Then, the limit plate 324 is moved away from the concrete specimen and located outside the pressure platform 34 to block the fragments splashed by the concrete during the compressive strength test and reduce safety hazards.

[0099] The limiting plate 324 is designed in a bent shape to facilitate clamping of the concrete specimen. The inner wall of the movable through hole 329 is provided with a second slide groove 321 arranged in a circular array. A second slider is placed inside the second slide groove 321. The inner side of the second slider is fixedly connected to the outer wall of the threaded tube to limit the threaded tube, so that the threaded rod 323 can be rotated while driving the threaded tube to move.

[0100] Example 2: Please refer to Figure 6 , Figure 7 and Figure 8 The difference between this embodiment and the first embodiment is that the adjustment component 325 includes:

[0101] The mounting shell 3251 is fixedly mounted on one end of the bevel gear 326 close to the threaded rod 323, and one side of the mounting shell 3251 close to the threaded rod 323 is designed to be open;

[0102] The mounting rod 3253 is fixedly arranged at one end of the threaded rod 323 close to the bevel gear 326. The side wall of the mounting rod 3253 is provided with first slide grooves 3252 arranged in a circular array. First sliders are placed inside the first slide grooves 3252. The top of the first slider is fixedly connected to the inner wall of the mounting shell 3251 so that the mounting shell 3251 can move under the limitation of the first slider and the first slide groove 3252. A first spring is sleeved inside the mounting shell 3251 and on the side of the threaded rod 323 close to the bevel gear 326 to elastically support the bevel gear 326.

[0103] In a specific implementation, when one or more of the limiting plates 324 and the contact plate 3281 are offset, the supporting plate 331 is first removed, and the bevel gear 326 at the corresponding position is separated from the bevel gear plate 362 along the mounting through hole 37, and then the threaded rod 323 at the corresponding position is rotated separately, so that the position of the limiting plate 324 at the corresponding position can be adjusted separately, which is convenient for long-term use;

[0104] When the bevel gear 362 and the bevel gear 326 are separated in the specific operation, the staff pushes the bevel gear 326 to move along the mounting hole 37, so that the bevel gear 326 drives the mounting shell 3251 and the first slider to move along the first slide groove 3252, so that the mounting shell 3251 moves along the side wall of the mounting rod 3253, thereby separating the bevel gear 326 from the bevel gear 362. When the adjustment is completed, the bevel gear 326 is meshed with the bevel gear 362, and under the action of the first spring, the bevel gear 326 and the bevel gear 362 are always kept meshed, and through the cooperation of the first slide groove 3252 and the first slider, the bevel gear 326 can drive the mounting shell 3251, the mounting rod 3253 and the threaded rod 323 to rotate, which is convenient for actual use.

[0105] See also Figure 7 , the identification component 327 includes:

[0106] The guide rod 3271 is fixedly arranged on the inner side of the limit plate 324. The side wall of the pressure platform 34 is provided with a guide groove in which the guide rod 3271 is sleeved, so that the guide rod 3271 moves along the guide groove with the limit plate 324. A second groove is provided on the top of the guide rod 3271, and a scale plate 3272 is fixedly arranged inside the second groove.

[0107] The identification block 3273 is fixedly disposed on the side wall of the pressure platform 34 and is located outside the guide groove. The identification block 3273 points to the scale plate 3272 to grasp the position of the limit plate 324.

[0108] In a specific implementation, the movement of the limit plate 324 drives the guide rod 3271 to move the guide groove, so that the position of the limit plate 324 is determined by the position of the scale plate 3272 pointed to by the identification block 3273, so as to make the positions of the plurality of limit plates 324 arranged in the annular array consistent, facilitate actual adjustment and use, and facilitate understanding whether the positions of one of the limit plates 324 or the plurality of limit plates 324 are consistent;

[0109] The guide rod 3271 is driven to move by the limiting plate 324 , so as to limit the movement of the limiting plate 324 and improve the stability of the movement of the limiting plate 324 .

[0110] See also Fig.10 , Fig.11 , Fig.12 and Fig.13 , the damping assembly 38 comprises:

[0111] The bracket 382 is fixedly arranged on the inner wall of the mounting through hole 37. The top of the bracket 382 is fixedly provided with a mounting sleeve 381. The inner wall of the mounting sleeve is provided with a spring 384. The two ends of the spring 384 are respectively fixedly connected to the side wall of the rotating shaft and the inner wall of the mounting sleeve 381, so as to limit the rotation of the rotating shaft after the servo motor 361 stops driving the rotating shaft.

[0112] The mounting grooves 385 are formed in a circular array on the side wall of the mounting sleeve 381 .

[0113] The damping assembly 38 also includes:

[0114] The ratchet 383 is fixedly sleeved on the side wall of the rotating shaft and is located in the mounting sleeve 381;

[0115] The pawl 386 is rotatably disposed on the top of the bracket 382 and is located in one of the mounting slots 385. A second spring is fixedly disposed on the top of the bracket 382. One end of the second spring away from the bracket 382 is fixedly connected to the inner side of the pawl 386 so that the pawl 386 is engaged with the ratchet wheel 383, thereby limiting the rotation of the rotating shaft. A pull ring 387 is fixedly disposed on the outer side of the pawl 386.

[0116] The buckle 388 is fixedly disposed on the outer side of the bracket 382 , and the middle end of the side wall of the buckle 388 is designed to be inwardly concave to limit the pull ring 387 .

[0117] In specific implementation, when adjusting the position of one or more of the limit plates 324 individually, the drive motor needs to be stopped first. After the drive motor stops running, the output shaft of the drive motor usually just stops rotating and will not self-lock after stopping rotating. The output shaft of the servo motor 361 can be rotated, which means that the servo motor 361 stops running and moves backward. The bevel gear plate 362 can be rotated by external force. In order to improve the stability of the other limit plates 324 when adjusting the position of one of the limit plates 324 individually, when the output shaft of the servo motor 361 drives the rotating shaft, the rotating shaft drives the ratchet 383 When the rotation stops, the second spring and the pawl 386 prevent the shaft from reversing, thereby preventing the bevel gear 362 from reversing, and the shaft compresses the spring 384 to rotate during the rotation process. When the shaft stops rotating, the spring 384 has a tendency to rotate in the opposite direction. Therefore, combined with the self-locking of the ratchet 383 and the pawl 386, the shaft is in a relatively stable state, reducing the rotation of the bevel gear 362 and the remaining bevel gears 326 when one of the bevel gears 326 is separated from the bevel gear 362 or after the separation, which is convenient for actual adjustment and use;

[0118] By putting the pull rope on the buckle 388, the pawl 386 is easily separated from the ratchet wheel 383, so that the servo motor 361 can drive the rotating shaft to reverse, so that the limit plates 324 can be separated from each other.

[0119] See also Fig.15 and Fig.16 The bottom of the pressure platform 34 is provided with limiting grooves 322 arranged in a circular array, and the limiting grooves 322 are connected to the mounting through holes 37, and the limiting grooves 322 are staggered at the end corners of the bracket 382;

[0120] The installation through slot 385 is provided to facilitate operation of the pull rope and the buckle 388, and the limiting groove 322 is provided to further improve the convenience of operation.

[0121] The electronic devices such as the servo motor 361 and the pressure sensor 3282 in the present invention are connected to the console 4 and the external power supply through wires to facilitate actual control and use. This is the prior art and will not be described in detail here.

[0122] The embodiment of the present invention further provides a method for using a concrete strength detection device based on water conservancy project supervision, using a concrete strength detection device based on water conservancy project supervision, the method comprising the following steps:

[0123] S1: placing the concrete specimen on top of the support plate 331;

[0124] S2: After the concrete specimen is placed, the concrete specimen is limited by the limiting mechanism 32 so that the center of the concrete specimen is vertically aligned with the center of the supporting plate 331;

[0125] S3: After the position of the concrete is limited, the limit plate 324 is moved away from the concrete specimen. Then, the compressive strength of the concrete specimen is tested by the pressing mechanism 2. The position of the concrete specimen is limited by the limit mechanism 32, so that the center of the concrete specimen is vertically aligned with the center of the supporting plate 331, which is convenient for the alignment of the lower pressing plate of the pressing mechanism 2 with the center of the concrete specimen, reducing the error caused by the alignment of the staff, so as to improve the accuracy of the test. As the lower pressing plate is continuously pressed down, the concrete gradually breaks. When it breaks, the pressure sensor 3282 in the pressing mechanism 2 records the information and transmits it to the console 4 to detect the compressive strength of the concrete specimen.

[0126] During the testing process, the blocking of the limit plate 324 reduces the probability of accidental injury to workers by the fragments of the concrete specimen during the testing process, thereby improving the safety of the testing.

[0127] Due to long-term use, when the position of one or more limit plates 324 is offset, in order to ensure the stability of the concrete specimen limit, the monitoring component 328 can monitor the force of concrete squeezing to determine whether the position of the limit plate 324 is offset, and further determine through the identification component 327. When offset occurs, the position of each limit plate 324 can be individually adjusted through the adjustment component 325 to facilitate long-term use.

[0128] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0129] 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.

[0130] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete strength testing device based on water conservancy project supervision, comprising a body, a pressing mechanism arranged on the top of the body for pressing down a concrete test piece, and a control console arranged outside the body, characterized in that: It also includes a pressure-bearing mechanism arranged at the bottom of the inner side of the machine body and used to cooperate with the downward pressure mechanism to test the compressive strength of the concrete specimen. The pressure-bearing mechanism includes: The pressure-bearing platform is arranged on the inner side of the machine body, a mounting through hole is provided on the top of the pressure-bearing platform, a supporting assembly for placing the concrete specimen is arranged on the top of the pressure-bearing platform and outside the mounting through hole, and a limiting mechanism arranged in a circular array is provided on the side wall of the pressure-bearing platform to limit the position of the concrete specimen at the top of the supporting assembly from the side wall of the concrete specimen, and the supporting assembly includes: The supporting plate is sleeved on the top of the pressure platform and is used to place the concrete specimen. The top of the supporting plate is provided with two mutually perpendicular symmetry lines, and both symmetry lines pass through the top center of the supporting plate so that the symmetry lines point to the end angles of the concrete specimen. The limiting mechanism includes: A limit plate is movably arranged on the side wall of the pressure platform and extends to the top of the pressure platform. A monitoring component for monitoring the force of the extruded concrete specimen is arranged on one side of the limit plate located at the top of the pressure platform; The pressure-bearing mechanism further comprises: A pressure bearing seat is fixedly arranged at the inner bottom of the machine body, and a pressure bearing column arranged in a circular array is fixedly arranged on the top of the pressure bearing seat, and the top of the pressure bearing column is fixedly connected to the bottom of the pressure bearing platform, and a driving mechanism for driving the limit plate to move is arranged inside the pressure bearing seat; The limiting mechanism also includes: A movable through hole is provided on the side wall of the pressure platform and is connected to the installation through hole. A threaded rod is rotatably provided on the inner wall of the movable through hole. A threaded tube extending to the outside of the pressure platform is threadedly connected to the side wall of the threaded rod. One end of the threaded tube located outside the pressure platform is fixedly connected to the lower end of the limit plate. The outer wall of the threaded tube is slidably connected to the inner wall of the movable through hole to limit the threaded tube. A bevel gear is arranged on the side wall of one end of the threaded rod away from the limiting plate and is located in the mounting through hole. The driving mechanism drives the bevel gear to rotate to drive the limiting plate to move. An identification component for judging the position of the limiting plate is arranged on the inner side of the limiting plate. The driving mechanism comprises: A servo motor is fixed inside the pressure bearing seat, the output shaft of the servo motor is fixedly provided with a rotating shaft through a coupling, a bevel gear plate meshing with a bevel gear is fixedly provided on the top of the rotating shaft, so that the limit plates arranged in the annular array are moved closer to or farther away from each other through the meshing transmission of the bevel gear plate and the bevel gear, and the cooperation of the threaded rod and the threaded tube threaded transmission, an adjustment component for adjusting the meshing or separation of the bevel gear and the bevel gear is provided at one end where the threaded rod and the bevel gear are close to each other, and a damping component for limiting the rotating shaft is provided on the side wall of the rotating shaft; The adjustment component comprises: The mounting shell is fixedly arranged at one end of the bevel gear close to the threaded rod, and the side of the mounting shell close to the threaded rod is designed to be open; The mounting rod is fixedly arranged at one end of the threaded rod close to the bevel gear, and the side wall of the mounting rod is provided with a first slide groove arranged in a circular array, and a first slider is placed inside the first slide groove, and the top of the first slider is fixedly connected to the inner side wall of the mounting shell, so that the mounting shell can move under the limitation of the first slider and the first slide groove, and a first spring is sleeved inside the mounting shell and on the side of the threaded rod close to the bevel gear to elastically support the bevel gear.

2. A concrete strength detection device based on water conservancy project supervision according to claim 1, characterized in that: The monitoring components include: A fixed plate is fixed to one side of the limit plate located at the top of the pressure platform. A first groove is opened on the side of the fixed plate away from the limit plate. A pressure sensor extending outside the first groove is fixedly provided inside the first groove. Moving rods are sleeved on the side walls of the fixed plate and near the end corners. A stop plate and a clamping block are fixedly provided at both ends of the moving rod, respectively. A contact plate is fixedly provided on the side of the stop plate away from the fixed plate. The contact plate contacts the concrete specimen to squeeze the contact plate and the pressure sensor, thereby monitoring the force of squeezing the concrete specimen. The clamping block cooperates with the fixed plate to prevent the moving rod from detaching from the fixed plate.

3. A concrete strength detection device based on water conservancy project supervision according to claim 2, characterized in that: The identification component includes: A guide rod is fixedly arranged on the inner side of the limit plate, a guide groove in which the guide rod is sleeved is provided on the side wall of the pressure platform, so that the guide rod moves along the guide groove with the limit plate, a second groove is provided on the top of the guide rod, and a scale plate is fixedly arranged inside the second groove; The marking block is fixed on the side wall of the pressure platform and is located outside the guide groove. The marking block points to the scale plate to grasp the position of the limit plate.

4. A concrete strength detection device based on water conservancy project supervision according to claim 3, characterized in that: The damping assembly comprises: The bracket is fixedly arranged on the inner wall of the mounting through hole, a mounting sleeve is fixedly arranged on the top of the bracket, a spring is arranged on the inner wall of the mounting sleeve, and two ends of the spring are respectively fixedly connected to the side wall of the rotating shaft and the inner wall of the mounting sleeve, so as to limit the rotation of the rotating shaft after the servo motor stops driving the rotating shaft; The installation through grooves are arranged in a circular array on the side wall of the installation sleeve.

5. A concrete strength detection device based on water conservancy project supervision according to claim 4, characterized in that: The damping assembly further comprises: A ratchet wheel is fixedly sleeved on the side wall of the rotating shaft and is located in the mounting sleeve; A ratchet is rotatably disposed on the top of the bracket and is located in one of the mounting slots. A second spring is fixedly disposed on the top of the bracket. One end of the second spring away from the bracket is fixedly connected to the inner side of the ratchet so that the ratchet engages with the ratchet wheel, thereby limiting the rotation of the rotating shaft. A pull ring is fixedly disposed on the outer side of the ratchet; The buckle is fixedly arranged on the outer side of the bracket, and the middle end of the side wall of the buckle is designed to be concave inwards to limit the pull ring.

6. A concrete strength detection device based on water conservancy project supervision according to claim 4, characterized in that: The bottom of the pressure platform is provided with limiting grooves arranged in a circular array, and the limiting grooves are connected to the mounting through holes, and the limiting grooves are staggered with the end corners of the bracket; The upper end and the lower end of the side wall of the rotating shaft are rotatably connected to the top of the bracket and the top of the pressure bearing seat respectively, and the bevel gear disc is located at the top of the mounting sleeve; The limit plate is designed in a bent shape, and the inner wall of the movable through hole is provided with a second slide groove arranged in a circular array, and a second slider is placed inside the second slide groove, and the inner side of the second slider is fixedly connected to the outer wall of the threaded tube; The supporting assembly further comprises: The insertion rods are fixedly arranged at the bottom of the support plate in a circular array. The top of the pressure platform and the outer side of the installation through hole are provided with slots arranged in a circular array, and the inner walls of the slots are adapted to the side walls of the insertion rods.

7. A method for using a concrete strength detection device based on water conservancy project supervision, characterized in that: Using a concrete strength detection device based on water conservancy project supervision as described in any one of claims 1 to 6, the method comprises the following steps: S1: Place the concrete specimen on top of the support plate; S2: After the concrete specimen is placed, the concrete specimen is limited by a limiting mechanism so that the center of the concrete specimen is vertically aligned with the center of the supporting plate; S3: After the position limiting of the concrete is completed, the limiting plate is moved away from the concrete specimen, and then the compressive strength test of the concrete specimen is performed through the pressing mechanism.

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