Building construction concrete strength detection device

Abstract

The invention discloses a building construction concrete strength detection device, and relates to the technical field of concrete strength detection.The building construction concrete strength detection device comprises a testing frame, a control box and a bearing platform, the top of the testing frame is in threaded connection with a threaded column, the bottom end of the threaded column is movably connected with a pressing block, and a material guide box is fixed to the bottom of the testing frame; and a bearing table is arranged above the material guide box. According to the building construction concrete strength detection device, the bearing table, the driving mechanism, the scraping assembly and the cleaning mechanism are arranged and linked, so that the driving mechanism can drive a plurality of U-shaped frames of the scraping assembly to reciprocate to remove waste residue blocks which do not completely fall off from the surfaces of concrete test blocks; and meanwhile, the driving mechanism can drive the cleaning mechanism to continuously vibrate and discharge the material to the material guide box and spray compressed air from the nozzle for automatic cleaning, so that the strength detection device can stably and safely detect the building construction concrete, and a worker does not need to clean waste residues in the detection process in the test frame.

Description

Technical Field

[0001] The invention relates to the technical field of concrete strength detection, in particular to a construction concrete strength detection device. Background Art

[0002] The concrete strength testing device is mainly used for construction in the construction process, and the strength test of concrete test blocks is a very critical link in construction. It is of great significance to ensure the quality, safety and durability of the project. Relevant compressive strength tests must be carried out to achieve strict control of the quality of concrete materials. Before construction, it is necessary to use the same process under the same conditions to make concrete test blocks, and then test the various physical and chemical properties of the concrete test blocks.

[0003] According to the Chinese patent with the announcement number CN217277433U, a construction concrete testing device is disclosed. The utility model has a compact and reasonable structure and is easy to operate. Through the mutual use of the test mold table and the vibration table, it can effectively improve the overall molding quality of the test sample, ensure the effectiveness of the compression test, and improve the accuracy of the data obtained in the subsequent pressure test, effectively improving the detection efficiency of the construction concrete quality and the accuracy of the detection results, and ensuring the overall quality of the construction; According to the Chinese patent with the announcement number CN118961412A, a concrete test block strength testing device based on the pressure method is disclosed. The invention avoids the contact between the pressure plate and the corners of the test block and the extrusion, thereby ensuring the integrity and uniformity of the test block and the accuracy of the test data; When the above-mentioned technical solution is in use, the concrete test block is placed at a designated position and directly extruded. This testing process will cause the concrete test block to deviate from the bottom of the extrusion assembly, resulting in unstable testing. In addition, the waste slag blocks generated during the extrusion can only be manually processed after the concrete test block is subsequently taken out, so that the waste slag blocks subsequently processed cannot assist personnel in understanding the test strength of construction concrete. At the same time, the waste slag blocks that have not been completely detached from the concrete test block will also affect personnel's judgment of the fragmentation situation. Summary of the invention

[0004] The purpose of the present invention is to provide a construction concrete strength detection device to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a construction concrete strength detection device, comprising a test frame, a control box and a bearing platform, wherein the top of the test frame is threadedly connected with a threaded column, the bottom of the threaded column is movably connected with a pressure block, and a control box is arranged on one side of the test frame. A material guide box is fixed to the bottom of the test frame, a bearing platform is arranged above the material guide box, support seats and limit seats fixed to the bottom of the test frame are arranged at both ends of the bearing platform, convex strips are symmetrically arranged on the arc surface of the lower side of the bearing platform, an adjustment cavity is provided at the bottom of the bearing platform, a rack is provided on the inner wall of the adjustment cavity, an arc-shaped deflection groove is provided at one end of the bottom of the bearing platform close to the limit seat, a driving mechanism and a scraper assembly are arranged on the bearing platform, and the scraper assembly includes a U-shaped frame equidistantly sleeved on the outer side of the bearing platform, the U-shaped frame is connected with the convex strip by the bayonet of the inner wall, and a groove is provided in the middle of the arc surface of the inner wall of the U-shaped frame; The driving mechanism includes a flip plate slidably arranged under the supporting platform, an arc-shaped slide rail is fixed on the top of the flip plate, and the slide rail is slidably docked in the deflection groove, a spiral strip is fixed on the top of the slide rail of the flip plate, a push-pull rod is arranged inside the adjusting cavity, one end of the push-pull rod is connected to two rollers, and the two rollers abut against the two sides of the spiral strip, a gear meshing with the rack is arranged in the middle of the push-pull rod, a Z-shaped rod plugged into the groove is fixed to the lower end of the central axis of the gear, and a cleaning mechanism for cleaning the supporting platform is arranged on the limit seat.

[0006] Preferably, a notch is provided on one side of the middle of the deflection groove, and a baffle is arranged in the notch, one side of the baffle is movably connected to a knob threadedly connected to the end of the supporting platform, and the side of the baffle away from the knob is in rolling contact with the slide rail at the top of the flip plate through a steel ball.

[0007] Preferably, a lever is fixed to one side surface of the flip plate, and a lower swing frame is sleeved on the outer side of the lever, the upper side of the lower swing frame is slidably connected to a reserved groove on the surface of the supporting platform, and an upper swing frame is installed on the upper side of the lower swing frame.

[0008] Preferably, a crankshaft is docked in the middle of the upper swing frame, and one end of the crankshaft is movably connected to one end of the support platform through a bearing, and a motor is installed at the bottom of the test frame through a bracket, and the output end of the motor is fixed to the crankshaft.

[0009] Preferably, the inner wall of the adjustment cavity close to the rack is connected with a polished rod screw, and the surface of the push-pull rod is provided with a strip groove, and the strip groove is slidably connected to the polished rod screw.

[0010] Preferably, two vertical sides of the U-shaped frame are provided with assembly grooves, and a spring is connected in the assembly groove, one end of the spring abuts against the side surface of the scraper strip, and both ends of the scraper strip are slidably connected to the assembly groove.

[0011] Preferably, arc-shaped cavities are symmetrically provided on both sides of the arc surface of the U-shaped frame.

[0012] Preferably, support grooves are provided on the inclined surfaces at both ends of the flip disk, and the cleaning mechanism includes an active friction block arranged between the U-shaped frame and the flip disk, and fixed rods abutting the support grooves are fixed at both ends of the active friction block, and a driven friction block is interference-engaged with the end of the fixed rod away from the active friction block, and the fixed rod is inserted through the arc-shaped cavity on the surface of the active friction block.

[0013] Preferably, the active friction block and the driven friction block are both arc-shaped structures, sliding cavities are formed through the surfaces of both ends of the active friction block, and the sliding cavities are connected to the connecting rod at the bottom of the piston, the top of the piston is slidably connected to the compression chamber inside the limit seat, and an air supply passage connected to the compression chamber is formed inside the limit seat, a nozzle installed at the end of the air supply passage is provided on the side of the limit seat close to the active friction block, and a one-way valve connected to the compression chamber is connected to the side of the limit seat away from the active friction block.

[0014] Preferably, two groups of rollers are movably connected on both sides of the inner wall of the material guide box, and the two groups of rollers are respectively abutted against the active friction block and the driven friction block. A slope is provided on the lower side of the material guide box, and a weighing plate is provided on the lower side of the slope of the test frame close to the material guide box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the construction concrete strength detection device is provided with a bearing platform, a driving mechanism, a scraper assembly and a cleaning mechanism linked together, so that the driving mechanism can drive multiple U-shaped frames of the scraper assembly to move back and forth to remove waste slag blocks that have not completely fallen off the surface of the concrete test block, and at the same time the driving mechanism can drive the cleaning mechanism to continuously vibrate and discharge the material guide box and to automatically clean it by blowing compressed air from the nozzle, thereby ensuring that the strength detection device can perform stable and safe detection of construction concrete, without the need for personnel to clean up waste slag during the detection process in the test frame.

[0016] 1. The construction concrete strength testing device, when the threaded column drives the pressure block to apply steady pressure downward to the concrete test block, drives the turning plate to deflect back and forth through the driving mechanism, thereby driving the push-pull rod to drive the gear and the Z-shaped rod in the bearing platform to produce reciprocating transverse movement and reciprocating deflection, so that the U-shaped frame can drive the scraper to elastically rub the surface of the concrete test block when reciprocating, so as to facilitate the horizontal scraping of the waste slag blocks that have not completely fallen off the concrete test block, and by arranging equidistant U-shaped frames on the side of the bearing platform to peel off the completely loose waste slag blocks on the concrete test block, it is convenient to remove the broken and incompletely detached waste slag blocks on the concrete test block, and multiple U-shaped frames are arranged on both sides of the bearing platform to block and limit the concrete test block, so as to facilitate the strength testing device to improve the stability of the construction concrete testing process when performing compressive strength testing; 2. The construction concrete strength detection device drives the active friction block and the driven friction block to reciprocate through the reciprocating deflection of the turning plate. The active friction block and the driven friction block will drive the two groups of rollers to reciprocate and make the material guide box vibrate continuously, so that the waste slag blocks and granular waste slag dropped from the concrete test block are conveniently sent into the weighing plate along the material guide box for weighing, and the active friction block can alternately pull or push and pull the piston on the lower side of the limit seat through the sliding chambers at both ends, so that the two groups of pistons reciprocate and extend in the compression chamber to spray compressed air from the nozzle, so that the compressed air sprayed from the nozzle will blow to the upper side of the bearing platform, which is convenient for automatic dust cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the strength detection device of the present invention; Figure 2 It is a schematic diagram of the three-dimensional cross-section structure of the test stand of the present invention; Figure 3 It is a schematic diagram of a three-dimensional structure in which the carrier platform of the present invention is arranged above the material guide box; Figure 4 It is a schematic diagram of a first three-dimensional structure of the support platform and the U-shaped frame docking in the present invention; Figure 5 A schematic diagram of a second three-dimensional structure of the support platform and the U-shaped frame docking in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the linkage between the carrier platform, the driving mechanism and the scraper assembly of the present invention; Figure 7 It is a schematic diagram of a three-dimensional cross-section structure of the docking of the carrier platform and the scraper assembly of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the carrying platform of the present invention; Fig. 9 It is a schematic diagram of a first three-dimensional cross-section structure of the carrier platform of the present invention; Fig.10 It is a schematic diagram of a second three-dimensional cross-section structure of the carrier platform of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the linkage between the turning disk, the spiral strip and the push-pull rod of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the linkage between the driving mechanism and the scraping assembly of the present invention; Fig.13 It is a schematic diagram of a first three-dimensional structure of the material guide box connected to the cleaning mechanism of the present invention; Fig.14 A second three-dimensional structural schematic diagram of the material guide box and the cleaning mechanism connected to each other in the present invention; Fig.15 It is a three-dimensional cross-sectional structural schematic diagram of the connection between the material guide box and the cleaning mechanism of the present invention.

[0018] In the figure: 1, test frame; 101, threaded column; 102, pressure block; 2, control box; 3, material guide box; 301, roller; 4, bearing platform; 401, support seat; 402, limit seat; 403, convex strip; 404, adjustment cavity; 405, rack; 406, deflection groove; 407, stop bar; 5, driving mechanism; 501, motor; 502, crankshaft; 503, upper swing frame; 504, lower swing frame; 505, turning plate; 506, crankshaft; 506, upper swing frame; 507, lower swing frame; 508, upper swing frame; 509, upper swing frame; 510, upper swing frame; 511, upper swing frame; 512, upper swing frame; 513, upper swing frame; 514, upper swing frame; 515, upper swing frame; 516, upper swing frame; 517, upper swing frame; 518, upper swing frame; 519, upper swing frame; 520, upper swing frame; 521, upper swing frame; 522, upper swing frame; 523, upper swing frame; 524, upper swing frame; 525, upper swing frame; 526, upper swing frame; 527, upper swing frame; 528, upper swing frame; 529, upper swing frame; 530, upper swing frame; 531, upper swing frame; 532, upper swing frame; 533, upper swing frame; 534, upper swing frame; 535, upper swing frame; 536, upper swing frame; 537, upper swing frame; 538, upper swing frame; 539, upper swing frame; 540, upper swing frame; 541, upper swing frame; 542, upper swing frame; 543, upper swing frame; 6. Spiral strip; 507. Push-pull rod; 508. Gear; 509. Z-shaped rod; 510. Roller; 6. Scraper assembly; 601. U-shaped frame; 602. Bayonet; 603. Spring; 604. Scraper strip; 605. Groove; 606. Arc cavity; 7. Cleaning mechanism; 701. Active friction block; 702. Fixed rod; 703. Driven friction block; 704. Piston; 705. Nozzle; 706. One-way valve; 8. Weighing plate. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 12 The present invention provides a technical solution: a construction concrete strength detection device, comprising a test frame 1, a control box 2 and a bearing platform 4, wherein the top of the test frame 1 is threadedly connected with a threaded column 101, the bottom of the threaded column 101 is movably connected with a pressure block 102, a pressure sensor for pressure detection is embedded in the pressure block 102, and a control box 2 is arranged on one side of the test frame 1. A material guide box 3 is fixed at the bottom of the test frame 1, and a bearing platform 4 is arranged above the material guide box 3. The upper side of the bearing platform 4 is arranged as a plane structure, and an inclined slag discharge groove is equidistantly provided on the upper plane of the bearing platform 4. A support seat 401 and a limit seat 402 fixed to the bottom of the test frame 1 are arranged at both ends of the bearing platform 4. A convex strip 403 is symmetrically arranged on the arc surface of the lower side of the bearing platform 4. An adjustment cavity 404 is arranged at the bottom of the bearing platform 4, and a rack 405 is arranged on the inner wall of the adjustment cavity 404. An arc-shaped deflection groove 404 is arranged at one end of the bottom of the bearing platform 4 close to the limit seat 402. 06, a driving mechanism 5 and a scraper assembly 6 are provided on the carrying platform 4, and the scraper assembly 6 includes a U-shaped frame 601 equidistantly sleeved on the outside of the carrying platform 4, and the U-shaped frame 601 is connected with the convex strip 403 through the bayonet 602 on the inner wall, and the inner wall arc surface of the U-shaped frame 601 fits with the arc surface of the bottom of the carrying platform 4, and the U-shaped frame 601 is slidably guided by the convex strip 403 on the lower side of the carrying platform 4 through the bayonet 602, so as to ensure that the U-shaped frame 601 can move laterally and linearly along the carrying platform 4, and a groove 605 is provided in the middle of the inner wall arc surface of the U-shaped frame 601; The driving mechanism 5 includes a flip plate 505 slidably arranged below the supporting platform 4, an arc-shaped slide rail is fixed on the top of the flip plate 505, and the slide rail is slidably docked in the deflection groove 406, a spiral bar 506 is fixed on the top of the slide rail of the flip plate 505, a push-pull rod 507 is arranged inside the adjustment cavity 404, one end of the push-pull rod 507 is connected to two rollers 510, and the two rollers 510 abut against the two sides of the spiral bar 506, a gear 508 meshing with the rack 405 is arranged in the middle of the push-pull rod 507, a Z-shaped rod 509 plugged into the groove 605 is fixed at the lower end of the central axis of the gear 508, and a cleaning mechanism 7 for cleaning the supporting platform 4 is arranged on the limit seat 402; A lever is fixed to one side surface of the flip plate 505, and a lower swing frame 504 is sleeved on the outer side of the lever. The upper side of the lower swing frame 504 is slidably connected to the reserved groove on the surface of the supporting platform 4, and an upper swing frame 503 is installed on the upper side of the lower swing frame 504; a crankshaft 502 is docked in the middle of the upper swing frame 503, and one end of the crankshaft 502 is movably connected to one end of the supporting platform 4 through a bearing, and a motor 501 is installed at the bottom of the test frame 1 through a bracket, and the output end of the motor 501 is fixed to the crankshaft 502.

[0021] During the specific implementation, the concrete test block is placed on the bearing platform 4, and the position of the concrete test block is assisted by the limit seat 402, and then the threaded column 101 on the rotating test frame 1 is driven to drive the pressure block 102 to apply a steady pressure downward, so that the concrete test block is squeezed by the pressure block 102. At the same time, the motor 501 of the driving mechanism 5 is started to drive the crankshaft 502 to rotate and swing, so that the rotating crankshaft 502 pushes and pulls the upper swing frame 503, so that the upper swing frame 503 drives the lower swing frame 504 below to slide back and forth along the reserved groove on the side of the bearing platform 4; When the swing frame 504 slides back and forth laterally, it will pull the lever on one side of the flip plate 505. As the inner walls of the lower swing frame 504 squeeze and push the lever, the lever will drive the slide rail at the top of the flip plate 505 to reciprocate along the deflection groove 406 in the support platform 4. At the same time, the lever will reciprocate up and down along the lower swing frame 504. When the flip plate 505 reciprocates, the spiral strip 506 at the top of the slide rail will squeeze or pull the roller 510 at one end of the push-pull rod 507, so that the spiral strip 506 will drive the push-pull rod 507 to reciprocate in the adjustment cavity 404 inside the support platform 4 when it swings back and forth. Since the surface of the push-pull rod 507 is provided with a gear 508 and a Z-shaped rod 509, when the push-pull rod 507 moves back and forth, it can synchronously drive the gear 508 and the Z-shaped rod 509 to move horizontally. Since the gear 508 is meshingly connected with the rack 405 on the inner wall of the adjusting chamber 404, the reciprocating gear 508 will produce a meshing transmission with the rack 405, and then the gear 508 will drive the Z-shaped rod 509 to deflect back and forth, and the lower end of the Z-shaped rod 509 is inserted into the groove 605 on the arc surface of the inner wall of the U-shaped frame 601. Therefore, the Z-shaped rod 509 that synchronously moves back and forth and deflects back and forth can drive the equally spaced U-shaped frame 601 to move back and forth along the convex strips 403 on the arc surface of the lower side of the support platform 4.

[0022] See also Figure 7 , Fig.11 and Fig.12 The inner wall of the adjustment chamber 404 near the rack 405 is connected with a polished rod screw, and the surface of the push-pull rod 507 is provided with a strip groove, and the strip groove is slidably connected to the polished rod screw. The polished rod screw is set to slide with the strip groove on the surface of the push-pull rod 507, so that the push-pull rod 507 can produce a stable reciprocating movement in the lateral direction.

[0023] See also Figure 3-Figure 7 and Fig.12, the two vertical sides of the U-shaped frame 601 are provided with assembly grooves, and a spring 603 is connected in the assembly groove, one end of the spring 603 is in contact with the side of the scraper strip 604, and the two ends of the scraper strip 604 are slidably connected with the assembly groove, and the scraper strip 604 is made of rubber material. A limit pin for guiding the scraper strip 604 is threadedly connected on the vertical side of the U-shaped frame 601, and the limit pin is sleeved with the spring 603. The scraper strip 604 is first slidably docked in the assembly groove of the U-shaped frame 601, and then threadedly connected to the vertical side of the U-shaped frame 601 through the limit pin, so that the limit pin slides and guides the scraper strip 604 after passing through the spring 603, ensuring that the scraper strip 604 can be conveniently moved in a directional manner when it is squeezed and pushed to reset by the spring 603.

[0024] In specific implementation, during the process of compressive strength testing of the concrete test block, when the concrete test block as a whole is squeezed and causes the side to crack and deform, the deformed concrete test block will squeeze the scraper 604 on the vertical side of the U-shaped frame 601, so that the scraper 604 compresses and deforms the spring 603 along the assembly groove on the side of the U-shaped frame 601 when squeezed. When the side of the concrete test block is damaged and the waste slag block is detached, the reciprocating movement of the U-shaped frame 601 can drive the scraper 604 to elastically rub the surface of the concrete test block, so that the waste slag blocks that have not completely fallen off the concrete test block can be scraped off horizontally. At the same time, when the concrete test block is broken on the upper plane of the supporting platform 4, the waste slag block at the bottom of the concrete test block is sent into the gap between the two adjacent U-shaped frames 601 through the inclined slag discharge groove, and is equidistant. When the distributed U-shaped frames 601 vibrate during the lateral reciprocating movement, multiple U-shaped frames 601 can adjust their positions through lateral movement to shake off the waste blocks. Therefore, equidistant U-shaped frames 601 are set on the side of the supporting platform 4 to peel off the completely loosened waste blocks on the concrete test blocks, thereby facilitating the removal of the broken and not completely detached waste blocks on the concrete test blocks, and facilitating the staff to observe the breakage of the concrete test blocks and remove the waste blocks from the supporting platform 4, so that the strength detection device can improve the stability of the concrete detection process for construction during the subsequent compressive strength detection. At the same time, multiple U-shaped frames 601 are set for coordinated use, so that the U-shaped frames 601 can block and limit the concrete test blocks on both sides of the supporting platform 4, ensuring that the concrete test blocks have a stable compressive strength detection effect during detection.

[0025] See also Figure 7-Figure 11A notch is provided on one side of the middle of the deflection groove 406, and a blocking bar 407 is arranged in the notch. A knob threadedly connected to the end of the supporting platform 4 is movably connected to one side of the blocking bar 407. The side of the blocking bar 407 away from the knob rolls and abuts against the slide rail at the top of the flip disk 505 through a steel ball. By loosening the knob, the knob drives the blocking bar 407 to move along the notch in the middle of the deflection groove 406, so that the blocking bar 407 is away from the slide rail at the top of the flip disk 505, which is convenient for removing the slide rail at the top of the flip disk 505 from the deflection groove 406. Conversely, tightening the knob will drive the steel ball on one side of the blocking bar 407 to roll and abut against the slide rail at the top of the flip disk 505, which is convenient for assisting the slide rail at the top of the flip disk 505 to rotate in the deflection groove 406.

[0026] See also Figure 4 , Figure 5 , Figure 7 , Figure 13-Figure 15 , arc-shaped cavities 606 are symmetrically provided on both sides of the arc surface of the U-shaped frame 601; support grooves are provided on the inclined surfaces at both ends of the flip disk 505, and the cleaning mechanism 7 includes an active friction block 701 arranged between the U-shaped frame 601 and the flip disk 505, and fixed rods 702 are fixed at both ends of the active friction block 701 to abut against the support grooves, and a driven friction block 703 is inserted through the end of the fixed rod 702 away from the active friction block 701, and the fixed rod 702 is inserted through the arc cavity 606 on the surface of the active friction block 701, and the cross-sectional shape of the U-shaped frame 601, the cross-sectional shape of the active friction block 701, and the shape of the gap between two adjacent U-shaped frames 601 are all isosceles trapezoidal shapes, which facilitates the rapid fall of the waste slag blocks generated by the concrete test block along the gap between the U-shaped frame 601, the active friction block 701 and the driven friction block 703; The active friction block 701 and the driven friction block 703 are both arc-shaped structures. Sliding cavities are formed through the surfaces of both ends of the active friction block 701, and the sliding cavities are connected to the connecting rod at the bottom of the piston 704. The top of the piston 704 is slidably connected to the compression chamber inside the limit seat 402, and the limit seat 402 is provided with a gas transmission passage connected to the compression chamber. A nozzle 705 installed at the end of the gas transmission passage is provided on the side of the limit seat 402 close to the active friction block 701, and a one-way valve 706 connected to the compression chamber is connected to the side of the limit seat 402 away from the active friction block 701. Two groups of rollers 301 are movably connected on both sides of the inner wall of the material guide box 3, and the two groups of rollers 301 are respectively in contact with the active friction block 701 and the driven friction block 703. A slope is arranged on the lower side of the material guide box 3, and a weighing plate 8 is arranged on the lower side of the slope of the test frame 1 close to the material guide box 3.

[0027] In specific implementation, when the lower swing frame 504 drives the flip plate 505 to deflect back and forth, the flip plate 505 can support the fixed rod 702 to rotate back and forth in the arc cavity 606 of the U-shaped frame 601 through the support grooves at both ends, so that the fixed rod 702 drives the active friction block 701 and the driven friction block 703 to deflect back and forth. Since the outer arc surfaces of the active friction block 701 and the driven friction block 703 abut against the roller 301 on the inner wall of the material guide box 3, the active friction block 701 and the driven friction block 703 will drive the two groups of rollers 301 to rotate back and forth, so that The material guide box 3 generates continuous vibration. When the concrete test block drops the waste slag block into the material guide box 3, the fine waste slag particles are sent into the weighing plate 8 through the slope surface of the material guide box 3 and the vibration generated by the material guide box 3. The collected waste slag is weighed by the weighing plate 8, which is convenient for personnel to detect the amount of waste slag blocks dropped by the concrete test block under a given pressure. At the same time, the continuous slight vibration generated by the material guide box 3 can be transmitted to the bearing platform 4 through the support seat 401 and the limit seat 402, which is convenient for the bearing platform 4 to automatically shake off the waste slag particles on the surface; When the fixed rod 702 drives the active friction block 701 to deflect back and forth, the active friction block 701 can alternately pull or push and pull the piston 704 on the lower side of the limit seat 402 through the sliding chambers at both ends, so that the two groups of pistons 704 reciprocate and extend in the compression chamber inside the limit seat 402. When the piston 704 moves down along the compression chamber, the negative pressure generated in the compression chamber will cause the one-way valve 706 to take in air. Conversely, when the piston 704 moves up along the compression chamber, the one-way valve 706 cannot exhaust air at this time, and the piston 704 will spray the air in the compression chamber along the nozzle 705 at the end of the air transmission passage, so that the compressed air sprayed from the nozzle 705 will blow toward the upper side of the support platform 4, which is convenient for automatic dust cleaning.

[0028] To summarize, a concrete test block is placed on the supporting platform 4, and the threaded column 101 on the rotating test frame 1 is used to drive the pressure block 102 to apply a stable extrusion force downward to the concrete test block, and the pressure value is sensed by the pressure sensor in the pressure block 102, and the detected pressure value is transmitted to the display screen in the control box 2, and data is monitored and displayed on the display screen. By observing the degree of deformation and damage of the concrete test block, the waste slag blocks are introduced into the weighing pan 8 for collection and weighing using the material guide box 3 of the strength detection device, and the auxiliary personnel quickly detect the amount of waste slag blocks that are broken and detached from the concrete test block, thereby providing an auxiliary reference for detecting the strength of concrete in construction. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction concrete strength testing device, comprising a test frame (1), a control box (2) and a bearing platform (4), wherein the top of the test frame (1) is threadedly connected to a threaded column (101), the bottom of the threaded column (101) is movably connected to a pressure block (102), and a control box (2) is arranged on one side of the test frame (1), characterized in that: A material guide box (3) is fixed at the bottom of the test stand (1), a bearing platform (4) is arranged above the material guide box (3), support seats (401) and limit seats (402) fixed to the bottom of the test stand (1) are arranged at both ends of the bearing platform (4), convex strips (403) are symmetrically arranged on the arc surface on the lower side of the bearing platform (4), an adjustment cavity (404) is opened at the bottom of the bearing platform (4), and a rack (405) is arranged on the inner wall of the adjustment cavity (404), and the An arc-shaped deflection groove (406) is provided at one end of the bottom of the support platform (4) close to the limit seat (402); a driving mechanism (5) and a scraper assembly (6) are provided on the support platform (4); the scraper assembly (6) comprises a U-shaped frame (601) equidistantly sleeved on the outside of the support platform (4); the U-shaped frame (601) is connected to the convex strip (403) by a bayonet (602) on the inner wall; a groove (605) is provided in the middle of the arc surface of the inner wall of the U-shaped frame (601); The driving mechanism (5) comprises a flip plate (505) slidably arranged below the supporting platform (4); an arc-shaped slide rail is fixed on the top of the flip plate (505), and the slide rail is slidably docked in the deflection groove (406); a spiral strip (506) is fixed on the top of the slide rail of the flip plate (505); a push-pull rod (507) is arranged inside the adjusting cavity (404); one end of the push-pull rod (507) is connected to two rollers (510), and the two rollers (510) are abutted on both sides of the spiral strip (506); a gear (508) meshing with the rack (405) is arranged in the middle of the push-pull rod (507); a Z-shaped rod (509) plugged into the groove (605) is fixed at the lower end of the central axis of the gear (508); and a cleaning mechanism (7) for cleaning the supporting platform (4) is arranged on the limit seat (402).

2. A construction concrete strength detection device according to claim 1, characterized in that: A notch is formed on one side of the middle of the deflection groove (406), and a retaining bar (407) is arranged in the notch. One side of the retaining bar (407) is movably connected to a knob threadedly connected to the end of the support platform (4). The side of the retaining bar (407) away from the knob rolls against the slide rail at the top of the flip plate (505) through a steel ball.

3. A construction concrete strength detection device according to claim 2, characterized in that: A lever is fixed to one side surface of the turning plate (505), and a lower swing frame (504) is sleeved on the outer side of the lever. The upper side of the lower swing frame (504) is slidably connected to a reserved groove on the surface of the supporting platform (4), and an upper swing frame (503) is installed on the upper side of the lower swing frame (504).

4. A construction concrete strength detection device according to claim 3, characterized in that: A crankshaft (502) is butted against the middle of the upper swing frame (503), and one end of the crankshaft (502) is movably connected to one end of the support platform (4) via a bearing. A motor (501) is mounted on the bottom of the test frame (1) via a bracket, and an output end of the motor (501) is fixed to the crankshaft (502).

5. A construction concrete strength detection device according to claim 1, characterized in that: The inner wall of the adjustment cavity (404) close to the rack (405) is connected to a polished rod screw, and a strip groove is formed on the surface of the push-pull rod (507), and the strip groove is slidably connected to the polished rod screw.

6. A construction concrete strength detection device according to claim 1, characterized in that: The two vertical sides of the U-shaped frame (601) are provided with assembly grooves, and a spring (603) is connected in the assembly groove. One end of the spring (603) abuts against the side surface of the scraper strip (604), and both ends of the scraper strip (604) are slidably connected to the assembly groove.

7. A construction concrete strength detection device according to claim 1, characterized in that: Arc-shaped cavities (606) are symmetrically provided on both sides of the arc surface of the U-shaped frame (601).

8. A construction concrete strength detection device according to claim 7, characterized in that: Support grooves are provided on the inclined surfaces at both ends of the flip plate (505); the cleaning mechanism (7) comprises an active friction block (701) arranged between the U-shaped frame (601) and the flip plate (505); fixed rods (702) abutting against the support grooves are fixed at both ends of the active friction block (701); a driven friction block (703) is interference-engaged at one end of the fixed rod (702) away from the active friction block (701); and the fixed rod (702) and the arc-shaped cavity (606) on the surface of the active friction block (701) are inserted through.

9. A construction concrete strength detection device according to claim 8, characterized in that: The active friction block (701) and the driven friction block (703) are both arc-shaped structures. Sliding cavities are provided through the surfaces of both ends of the active friction block (701), and the sliding cavities are connected to the connecting rod at the bottom of the piston (704). The top of the piston (704) is slidably connected to the compression chamber inside the limit seat (402), and the limit seat (402) is provided with an air supply passage connected to the compression chamber. A nozzle (705) installed at the end of the air supply passage is provided on the side of the limit seat (402) close to the active friction block (701), and a one-way valve (706) connected to the compression chamber is connected to the side of the limit seat (402) away from the active friction block (701).

10. A construction concrete strength detection device according to claim 9, characterized in that: Two groups of rollers (301) are movably connected to both sides of the inner wall of the material guide box (3), and the two groups of rollers (301) are respectively in contact with the active friction block (701) and the driven friction block (703). A slope is provided on the lower side of the material guide box (3), and a weighing plate (8) is provided on the lower side of the slope of the test frame (1) close to the material guide box (3).

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