A test block strength detection device for concrete production and a method of using the same

Abstract

The application discloses a kind of test block strength detection devices and its using method for concrete production, belong to concrete detection technical field, the present application is by being arranged mobile sliding seat, rectangular mounting bracket, L type push bar, adjusting push plate and push frame, L type push bar one end drags and pushes the convex block, mobile sliding seat is driven to slide inwards along the limiting sliding slot of mounting plate, until concrete test block reaches with pressure detection plate upper and lower opposite position, then start the electric push rod of pressure detection mechanism one elongation, push down the vertical displacement of lower pressing plate, four groups adjusting push plate are slid in the rectangular through slot of rectangular mounting bracket by lower pressing plate, adjusting push plate's concave push groove pushes push frame to move to center, push frame drives push plate to be synchronous and close, concrete test block is accurately pushed to the center of bearing plate, electric push rod one continues to elongate, pressure detection plate stably presses concrete test block upper surface, according to detection standard, pressure is applied, and the compression strength detection of concrete test block is completed.

Description

Technical Field

[0001] This invention relates to the field of concrete testing technology, specifically to a test device for testing the strength of concrete production test blocks and its usage method. Background Technology

[0002] Concrete, as the most widely used and largest-volume core structural material in modern construction engineering, is extensively used in various infrastructure constructions such as housing, roads and bridges, tunnels, water conservancy, and municipal works. Its mechanical properties, durability, and structural stability directly determine the overall load-bearing capacity, service life, and safety level of the project. Among the many performance indicators of concrete, compressive strength is the most critical and representative technical parameter. It is not only the core basis for mix design but also a mandatory control indicator for structural safety calculations, construction quality acceptance, and project completion acceptance. It is directly related to the overall safety, durability, and long-term reliability of building structures.

[0003] The existing concrete production test block strength testing device requires manual and repeated position adjustments during the feeding and positioning process. This is cumbersome and time-consuming, and cannot meet the continuous testing needs of batch test blocks, resulting in low testing efficiency. In addition, the pressure plate that directly bears the pressure during the testing process is a vulnerable component that is prone to wear and deformation after long-term use. Traditional devices often use fixed installation or bolt tightening for the pressure plate, which involves complicated disassembly and replacement steps, requires the use of tools, and is inconvenient for maintenance, affecting the normal operating efficiency of the equipment.

[0004] Based on this, the present invention designs a test block strength testing device for concrete production and its usage method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete production test block strength testing device and its usage method, in order to solve the problems mentioned in the background art. The existing concrete production test block strength testing devices require repeated manual adjustments during the feeding and positioning process, which is cumbersome, time-consuming, and cannot meet the continuous testing needs of batch test blocks. The testing efficiency is low. At the same time, the pressure plate that directly bears the pressure during the testing process is a vulnerable part that is prone to wear and deformation after long-term use. The pressure plate of traditional devices is mostly fixed or bolted, which makes disassembly and replacement complicated and requires tools, making maintenance inconvenient and affecting the normal use efficiency of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A concrete production test block strength testing device includes a protective testing mechanism. The protective testing mechanism includes a base, with limit posts fixedly installed at the four corners of the top of the base, and mounting slide rods fixedly connected to the top of the limit posts. A top plate is fixedly installed at the top of the four mounting slide rods. An adjusting stud is threaded through the center of the top of the top plate. A locking stud is threaded through the surface of the adjusting stud on the top of the top plate. A lifting adjustment plate is rotatably installed at the bottom end of the adjusting stud via a bearing. The four corners of the lifting adjustment plate are slidably connected to the surface of the mounting slide rods. Trapezoidal pads are fixedly installed at the center of the four sides of the top of the lifting adjustment plate.

[0008] Connecting plates are fixedly connected to the four corners of the bottom of the lifting adjustment plate. A pressure detection mechanism is provided at the bottom of the lifting adjustment plate. A centering and pushing mechanism is fixedly installed at the bottom of the four connecting plates. A fixing plate is symmetrically fixedly installed on one side of the top of the base. Protective plates are fixedly installed on the three sides between the base and the top plate. A protective door plate is rotatably installed on one corner of the opening of the three protective plates on the base and the top plate through a rotating shaft. A pushing and feeding mechanism is provided at the top of the base between the four limiting columns. A concrete test block is placed at the center of the top of the pushing and feeding mechanism. A pressing and lifting mechanism is symmetrically provided on both sides of the pushing and feeding mechanism.

[0009] As a further embodiment of the present invention, the pressure detection mechanism includes four electric push rods, which are respectively embedded and fixedly installed at the four corners of the lifting adjustment plate. A lower pressure plate is fixedly installed at the telescopic end of the bottom of the four electric push rods. A pressure detection plate is fixedly installed at the center of the bottom of the lower pressure plate. Adjustment push plates are symmetrically fixedly installed at the center of the four sides of the bottom of the lower pressure plate. A limit block is fixedly installed at the bottom end of the adjustment push plate. A concave pushing groove is provided through the side of the adjustment push plate.

[0010] As a further embodiment of the present invention, the centering and pushing mechanism includes a rectangular mounting frame, and the four corners of the rectangular mounting frame are respectively slidably connected to the surface of the mounting slide rod. A rectangular groove is provided through the center of the rectangular mounting frame, and rectangular through slots are symmetrically provided around the center of the rectangular groove. An adjusting push plate is slidably connected inside the rectangular through slot. A pushing frame is slidably installed inside the rectangular through slot, and one end of the pushing frame inside the rectangular through slot is slidably connected to the concave pushing slot through a protrusion.

[0011] As a further embodiment of the present invention, two pushers on the same side of the inner wall of the rectangular groove extend through the rectangular through groove and are fixedly installed inside the rectangular groove. An installation hole is provided through the inner wall of the rectangular groove between the two rectangular through grooves. A reset slide rod is fixedly installed on one side of the pusher between the two pushers. A limit plate is fixedly installed at one end of the reset slide rod that extends through the inner wall of the rectangular groove into the installation hole. A reset spring is sleeved on the surface of the reset slide rod inside the installation hole. A pressure frame is fixedly installed on both sides of the bottom of the rectangular mounting frame.

[0012] As a further embodiment of the present invention, the pushing and feeding mechanism includes two mounting plates, which are fixedly mounted on opposite sides of the top of the base. Mounting protrusions are fixedly mounted on the sides of the two mounting plates that meet but are far apart. An L-shaped pushing strip is rotatably mounted on the surface of the mounting protrusions, and a through groove is provided through each of the two right angles of the L-shaped pushing strip. One end of the L-shaped pushing strip is slidably connected to the bottom end of the lower pressure frame. A limiting slide groove is provided through one side of the mounting plate, and a movable slide seat is provided close to the two mounting plates.

[0013] As a further embodiment of the present invention, push protrusions are fixedly installed at the central positions of both sides of the movable slide block, and the push protrusions are slidably installed inside the limiting slide groove. One end of the push protrusion extends through the limiting slide groove to the right angle plate of the L-shaped push bar, and the push protrusion is slidably connected to the through groove of one right angle side of the L-shaped push bar. A pressure plate is provided at the central position of the top of the movable slide block. Guide slide rods are fixedly installed on both sides of the bottom of the movable slide block, and the guide slide rods are slidably connected inside the fixed plate. A reset spring is sleeved on the surface of the guide slide rod on one side of the fixed plate. Mounting grooves are provided at the top of both sides of the movable slide block.

[0014] As a further embodiment of the present invention, the pressing and lifting mechanism includes an electric push rod two, which is fixedly connected to one side of the bottom of the mounting groove. An mounting block is fixedly installed on the top of the telescopic end of the electric push rod two. A connecting strip one is rotatably installed on one end of each side of the mounting block via a protrusion. An mounting column is fixedly installed on one side of the inner wall of the mounting groove, and a connecting strip two is rotatably installed through each end of the mounting column. A pressing block is rotatably installed between the top ends of the two connecting strips one and the two connecting strips two via a protrusion, and one end of the pressing block overlaps the edge of the top of the pressure plate.

[0015] As a further embodiment of the present invention, a connecting strip three is rotatably mounted on both sides of the mounting block and the center of the connecting strip two via protrusions. A push block is fixedly mounted on the bottom of the mounting block near the end of the mounting post. An L-shaped top strip is rotatably mounted through the surface of the mounting post between the two connecting strips two. A push groove is symmetrically provided through one end of the L-shaped top strip, and the two sides of the bottom end of the push block are slidably connected to the inside of the push groove through protrusions. A lifting roller is rotatably mounted on the end of the L-shaped top strip away from the push groove via a rotating shaft.

[0016] A method for using a concrete production test block strength testing device, the method comprising the following steps:

[0017] First, open the protective door panel. Rotate the adjusting stud to move the lifting adjustment plate upwards along the mounting slide rods, causing the lower pressure frame to rise and lift the L-shaped push bar. The L-shaped push bar rotates, lifting the push protrusion and causing the moving slide to extend beyond the base, creating a wide loading space. Place the concrete test block to be tested stably on the bearing plate at the center of the top of the moving slide. Then, rotate the adjusting stud to drive the lifting adjustment plate to slide vertically downwards along the four mounting slide rods. The lifting adjustment plate, through the four corner connecting plates, drives the rectangular mounting frame of the centering push mechanism to move downwards synchronously. When the bottom of the rectangular mounting frame contacts the top of the limiting post, stop rotating the adjusting stud and tighten the locking mechanism. The studs are locked to accurately position the test height. The protective door is closed, forming a fully enclosed test space to prevent the test block from breaking and splashing. As the rectangular mounting frame moves down, the pressure frames on both sides of its bottom simultaneously press down to push the L-shaped push bar of the feeding mechanism. The L-shaped push bar rotates with the mounting protrusion as the fulcrum. The end away from the pressure frame drags the push protrusion through the slide groove, causing the moving slide to slide inward along the limiting slide groove of the mounting plate. The guide rod at the bottom of the moving slide provides linear guidance. When the concrete test block moves to be completely aligned with the pressure test plate, the test block enters the standard test position.

[0018] Four sets of electric actuators extend synchronously, pushing the lower pressure plate downwards. The lower pressure plate drives four sets of adjusting push plates to slide vertically within the rectangular slots of the rectangular mounting frame. The concave pushing grooves on the sides of the adjusting push plates push the pushing frame along the rectangular slots towards the center of the slots. The pushing frame drives the pushing plates to move synchronously from all four sides, precisely pushing the concrete test block to the exact center of the bearing plate, ensuring the pressure surface is completely centered. After centering, the electric actuator continues to extend at a constant speed, allowing the pressure testing plate to press smoothly and vertically against the upper surface of the concrete test block, applying a continuous load according to the concrete strength testing standards. The pressure testing plate collects pressure data in real time and transmits it to the control system to complete the compressive strength test. After the test, the electric push rod retracts, which drives the lower pressure plate and the adjusting push plate to move up. The reset spring pulls the push plate and the push frame outward through the reset slide rod, releasing the clamp on the concrete test block. The protective door is opened, and the adjusting stud is rotated in the opposite direction, which drives the lifting adjustment plate and the rectangular mounting frame to move up. The lower pressure frame releases the pressure on the L-shaped push bar, and pushes the moving slide block outward along the limit slide groove to extend outward from the base. The tested test block can then be removed, completing a single test cycle and preparing for the next feeding.

[0019] When the pressure plate is worn or deformed and needs to be replaced, extend the movable slide completely out of the base, control the two electric push rods on both sides to retract synchronously, driving the mounting block to move downward. Under the linkage of connecting strip one, connecting strip two, and connecting strip three, the clamping block flips upward away from the edge of the pressure plate, completely releasing the clamping and fixing of the pressure plate. The push block at the bottom of the mounting block moves downward synchronously, sliding along the push groove of the L-shaped top strip, driving the L-shaped top strip to rotate around the mounting column. The lifting roller at the end of the L-shaped top strip lifts upward and contacts the bottom of the pressure plate, lifting the pressure plate away from the top of the movable slide. The operator can directly remove the pressure plate for replacement. After replacement, control the two electric push rods to extend, the clamping block to clamp the pressure plate again, and the lifting rollers to reset, completing the maintenance.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, by setting up a movable slide, a rectangular mounting frame, an L-shaped push bar, an adjusting push plate, and a push frame, allows concrete test blocks to be stably placed on the top bearing plate of the movable slide extending from the base. Manually rotating the adjusting stud causes the lifting adjusting plate to slide vertically down along the four mounting rods. The locking stud is used to subsequently lock the position of the adjusting stud and prevent loosening. When the lifting adjusting plate moves down, the rectangular mounting frame is simultaneously driven down via the connecting plate. During the downward movement of the rectangular mounting frame, the lower pressure frame at the bottom of the rectangular mounting frame presses down on the L-shaped push bar. The L-shaped push bar rotates around the mounting protrusion as a fulcrum, and the end away from the lower pressure frame drags the push bar through a sliding groove. The block moves along the limiting groove of the mounting plate until the concrete test block is directly opposite the pressure testing plate. Then, the electric push rod of the pressure testing mechanism extends, pushing the lower pressure plate vertically downward. The lower pressure plate drives four sets of adjusting push plates to slide in the rectangular through groove of the rectangular mounting frame. The concave pushing groove of the adjusting push plate pushes the pushing frame to move towards the center. The pushing frame drives the pushing plate to move closer together, accurately pushing the concrete test block to the center of the pressure plate. The electric push rod continues to extend, and the pressure testing plate smoothly presses against the upper surface of the concrete test block, applying pressure according to the testing standard to complete the compressive strength test of the concrete test block.

[0022] 2. This invention, by setting up a pressure plate, an electric push rod two, a clamping block, an L-shaped top bar, and a lifting roller, extends the movable slide outward from the base, making the pressure plate fully exposed in the operating area for easy disassembly and replacement. The controlled electric push rod two retracts, driving the mounting block downward. Under the linkage transmission of connecting strip one, connecting strip two, and connecting strip three, the clamping block flips upward and moves away from the edge of the pressure plate, completely releasing the clamping and fixing of the pressure plate. As the mounting block moves downward, the pushing block on its side moves downward synchronously. The pushing block slides along the pushing groove of the L-shaped top bar, driving the L-shaped top bar to rotate around the mounting column until the lifting roller at the end of the L-shaped top bar smoothly contacts the lower surface of the pressure plate. The controlled electric push rod two continues to retract, and the lifting roller continues to lift upward, smoothly lifting the pressure plate and making it completely detach from the top of the movable slide, allowing the operator to directly remove the pressure plate and complete quick disassembly and replacement. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the unfolded structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the unfolded structure of the base and protective door panel of the present invention;

[0026] Figure 3 This is a cross-sectional structural diagram of the top plate and the lifting adjustment plate of the present invention;

[0027] Figure 4 This is a schematic diagram of the lifting adjustment plate and centering pushing mechanism of the present invention;

[0028] Figure 5 This is a cross-sectional view of the trapezoidal pad and rectangular mounting bracket of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the pressure plate and the adjusting push plate of the present invention;

[0030] Figure 7 This is a cross-sectional view of the rectangular mounting bracket and push plate of the present invention.

[0031] Figure 8 This is a schematic diagram of the mounting plate and L-shaped push bar of the present invention;

[0032] Figure 9 This is a cross-sectional view of the movable slide and pressing and lifting mechanism of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of the electric push rod 2 and the clamping block of the present invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Protective detection mechanism; 101. Base; 102. Limiting post; 103. Mounting slide bar; 104. Top plate; 105. Fixing plate; 106. Protective plate; 107. Protective door panel; 2. Adjusting stud; 3. Locking stud; 4. Lifting adjustment plate; 401. Trapezoidal pad; 402. Connecting plate; 5. Pressure detection mechanism; 501. Electric push rod one; 502. Lower pressure plate; 503. Pressure detection plate; 504. Adjusting push plate; 505. Limiting bottom block; 506. Concave push groove; 6. Centering push mechanism; 601. Rectangular mounting bracket; 602. Rectangular groove; 603. Rectangular through groove; 604. Pushing bracket; 605. Pushing plate; 606. Mounting hole; 607. Reset slide bar 608. Limiting plate; 609. Return spring one; 610. Lower pressure frame; 7. Pushing and feeding mechanism; 701. Mounting plate; 702. Mounting protrusion; 703. L-shaped push bar; 704. Limiting slide groove; 705. Moving slide; 706. Pushing protrusion; 707. Bearing plate; 708. Guide slide rod; 709. Return spring two; 710. Mounting groove; 8. Pressing and lifting mechanism; 801. Electric push rod two; 802. Mounting block; 803. Connecting strip one; 804. Mounting column; 805. Connecting strip two; 806. Connecting strip three; 807. Pressing block; 808. Pushing block; 809. L-shaped top bar; 810. Pushing slide groove; 811. Lifting roller; 9. Concrete test block. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-10 The present invention provides a technical solution:

[0038] A concrete production test block strength testing device includes a protective testing mechanism 1. The protective testing mechanism 1 includes a base 101. Limiting posts 102 are fixedly installed at the four corners of the top of the base 101, and mounting slide rods 103 are fixedly connected to the top of the limiting posts 102. A top plate 104 is fixedly installed at the top of the four mounting slide rods 103. An adjusting stud 2 is threadedly connected to the center of the top of the top of the top plate 104. A locking stud 3 is threadedly connected to the surface of the adjusting stud 2 on the top of the top plate 104. A lifting adjusting plate 4 is rotatably mounted on the bottom end of the adjusting stud 2 via a bearing. The four corners of the lifting adjusting plate 4 are slidably connected to the surface of the mounting slide rods 103. A mounting plate 104 is fixedly installed at the center of the four sides of the top of the lifting adjusting plate 4. The base 101 is equipped with trapezoidal pads 401; connecting plates 402 are fixedly connected to the four corners of the bottom of the lifting adjustment plate 4; pressure detection mechanism 5 is provided at the bottom of the lifting adjustment plate 4; centering and pushing mechanism 6 is fixedly installed at the bottom of the four connecting plates 402; fixing plate 105 is symmetrically fixedly installed on one side of the top of the base 101; protective plates 106 are fixedly installed on the three sides between the base 101 and the top plate 104; protective door plate 107 is rotatably installed at one corner of the opening of the three protective plates 106 on the base 101 and the top plate 104 via a rotating shaft; a pushing and feeding mechanism 7 is provided at the top of the base 101 between the four limiting columns 102; a concrete test block 9 is placed at the center of the top of the pushing and feeding mechanism 7; and pressing and lifting mechanisms 8 are symmetrically provided on both sides of the pushing and feeding mechanism 7.

[0039] During operation, the concrete test block 9 is placed at the top center of the feeding mechanism 7. The adjusting stud 2 is rotated, which drives the lifting adjusting plate 4 to slide vertically downward along the four mounting slide bars 103. The lifting adjusting plate 4 drives the centering pushing mechanism 6 to move down synchronously through the connecting plate 402. The pressing frame 610 at the bottom of the rectangular mounting frame 601 contacts and presses down the L-shaped pushing strip 703 to realize automatic feeding of the test block. The lifting adjusting plate 4 stops when it moves down to the top of the limiting column 102, completing the detection height positioning. The locking stud 3 locks the adjusting stud 2 to prevent loosening during the detection process. The protective plate 106 and the protective door plate 107 form a closed protective space to avoid the test block from breaking and splashing, thus improving the safety of the detection. The concrete test block 9 is tested for strength by the control pressure detection mechanism 5.

[0040] As a further embodiment of the present invention, the pressure detection mechanism 5 includes an electric push rod 501, and the number of electric push rods 501 is four. The four electric push rods 501 are respectively embedded and fixedly installed at the four corners of the lifting adjustment plate 4. The telescopic ends of the bottom of the four electric push rods 501 are fixedly installed with a lower pressure plate 502. The pressure detection plate 503 is fixedly installed at the center of the bottom of the lower pressure plate 502. Adjustment push plates 504 are symmetrically fixedly installed at the center of the four sides of the bottom of the lower pressure plate 502. The bottom end of the adjustment push plate 504 is fixedly installed with a limit block 505. The side of the adjustment push plate 504 is provided with a concave push groove 506.

[0041] During operation, the four electric push rods 501 extend synchronously, pushing the lower pressure plate 502 downward. The lower pressure plate 502 drives the pressure detection plate 503 and the four sets of adjusting push plates 504 to move downward synchronously. The adjusting push plates 504 slide in the rectangular through groove 603 and drive the push frame 604 to move towards the center through the concave push groove 506 to center the test block. The electric push rods 501 continue to extend, and the pressure detection plate 503 presses steadily on the upper surface of the concrete test block 9, applying pressure according to the standard and collecting strength data. The limit block 505 restricts the downward limit of the adjusting push plate 504 to avoid overload damage to the mechanism.

[0042] As a further embodiment of the present invention, the centering and pushing mechanism 6 includes a rectangular mounting frame 601, and the four corners of the rectangular mounting frame 601 are respectively slidably connected to the surface of the mounting slide rod 103. A rectangular groove 602 is provided through the center of the rectangular mounting frame 601. Rectangular through slots 603 are symmetrically provided through the center of the rectangular groove 602 around the rectangular mounting frame 601. An adjusting push plate 504 is slidably connected through the rectangular through slot 603. A pushing frame 604 is slidably installed through the rectangular through slot 603. One end of the pushing frame 604 located inside the rectangular through slot 603 is slidably connected through a protrusion to the inside of the concave pushing slot 506. Two pushers 604 on the same side of the inner wall of the rectangular groove 602 extend through the rectangular through groove 603 and are fixedly installed inside the rectangular groove 602. A mounting hole 606 is provided through the inner wall of the rectangular groove 602 between the two rectangular through grooves 603. A reset slide rod 607 is fixedly installed on one side of the pusher 605 between the two pushers 604. A limit plate 608 is fixedly installed at one end of the reset slide rod 607 that extends through the inner wall of the rectangular groove 602 and into the mounting hole 606. A reset spring 609 is sleeved on the surface of the reset slide rod 607 inside the mounting hole 606. A pressing frame 610 is fixedly installed on both sides of the bottom of the rectangular mounting frame 601.

[0043] During operation, when the adjusting push plate 504 slides downward, the concave pushing groove 506 pushes the pushing frame 604 to move along the rectangular through groove 603 towards the center of the rectangular groove 602. The pushing frame 604 drives the pushing plate 605 to move closer simultaneously, pushing the concrete test block 9 to the center of the bearing plate 707 to ensure uniform pressure. After the test is completed, the electric push rod 501 retracts, and the reset spring 609 pulls the pushing plate 605 to reset through the reset slide rod 607 and the limit plate 608, preparing for the next test. The rectangular mounting frame 601 slides along the mounting slide rod 103 to ensure stable coaxiality of the lifting and pushing actions.

[0044] As a further embodiment of the present invention, the feeding mechanism 7 includes two mounting plates 701. The two mounting plates 701 are fixedly mounted on opposite sides of the top of the base 101. Mounting protrusions 702 are fixedly mounted on the sides of the two mounting plates 701 that meet but are far apart. An L-shaped pusher strip 703 is rotatably mounted on the surface of the mounting protrusion 702. The two right angles of the L-shaped pusher strip 703 are respectively provided with through grooves. One end of the L-shaped pusher strip 703 is slidably connected to the bottom end of the lower pressure frame 610. A limiting slide groove 704 is provided through one side of the mounting plate 701. A movable slide block 705 is closely attached between the two mounting plates 701. The central positions of both sides of the movable slide block 705 are respectively fixed. A pusher 706 is installed and is slidably installed inside the limiting slide groove 704. One end of the pusher 706 extends through the limiting slide groove 704 to the right angle plate of the L-shaped push bar 703, and the pusher 706 is slidably connected to the through groove of one right angle side of the L-shaped push bar 703. A pressure plate 707 is provided at the center of the top of the movable slide block 705. Guide slide rods 708 are fixedly installed on both sides of the bottom of the movable slide block 705, and the guide slide rods 708 are slidably connected inside the fixed plate 105. A return spring 709 is sleeved on the surface of the guide slide rod 708 on one side of the fixed plate 105. The top of both sides of the movable slide block 705 are respectively provided with mounting grooves 710.

[0045] During operation, when the rectangular mounting frame 601 moves downward, the lower pressure frame 610 presses down the L-shaped push bar 703, causing it to rotate around the mounting protrusion 702. As the L-shaped push bar 703 rotates, it drags the push protrusion 706, which in turn drives the movable slide 705 to slide inward along the limiting slide groove 704, delivering the concrete test block 9 to the testing station. When the movable slide 705 slides, the guide slide rod 708 provides guidance, and the second return spring 709 rebounds, assisting the movable slide 705 to move to the bottom of the pressure testing plate 503. After the test is completed, the lifting adjustment plate 4 moves upward, and the L-shaped push bar 703 rotates to push the push protrusion 706, causing the movable slide 705 to extend outward between the two mounting plates 701, realizing automatic material discharge and facilitating the picking and placing of test blocks.

[0046] As a further embodiment of the present invention, the pressing and lifting mechanism 8 includes an electric push rod 801, which is fixedly connected to one side of the bottom of the mounting groove 710. A mounting block 802 is fixedly installed on the top of the telescopic end of the electric push rod 801. A connecting strip 803 is rotatably installed on one end of each side of the mounting block 802 via a protrusion. A mounting post 804 is fixedly installed on one side of the electric push rod 801 on the inner wall of the mounting groove 710. A connecting strip 805 is rotatably installed through each end of the mounting post 804. A pressing block 807 is rotatably installed between the top ends of the two connecting strips 803 and the two connecting strips 805 via a protrusion, and one end of the pressing block 807 overlaps the edge of the top of the pressure plate 707. A connecting strip 806 is rotatably installed on both sides of the mounting block 802 and at the center of the connecting strip 805 via a protrusion.

[0047] During operation, the electric push rod 801 extends, pushing the mounting block 802 upward. The mounting block 802 drives the connecting strips 803, 805, and 806 to rotate, causing the pressing block 807 to flip and press against the edge of the pressure plate 707, fixing the pressure plate 707 to the top of the movable slide block 705. This ensures that the pressure plate 707 does not shift or warp when pressurizing the concrete test block 9, ensuring that the pressure testing plate 503 is subjected to vertical force and improving testing accuracy.

[0048] As a further embodiment of the present invention, a push block 808 is fixedly installed on the bottom of the mounting block 802 near the mounting post 804. An L-shaped top bar 809 is rotatably installed through the surface of the mounting post 804 between the two connecting bars 805. A push groove 810 is symmetrically provided through one end of the L-shaped top bar 809, and the two sides of the bottom end of the push block 808 are slidably connected to the inside of the push groove 810 through protrusions. A lifting roller 811 is rotatably installed at the end of the L-shaped top bar 809 away from the push groove 810 through a rotating shaft.

[0049] When the pressure plate 707 needs to be replaced during operation, the electric push rod 801 is retracted, which drives the mounting block 802 to move downward, causing the clamping block 807 to flip upward and release the pressure on the pressure plate 707. The push block 808 at the bottom of the mounting block 802 slides along the push groove 810, driving the L-shaped top bar 809 to rotate around the mounting column 804. The lifting roller 811 at the end of the L-shaped top bar 809 lifts upward, smoothly lifting the pressure plate 707 and separating it from the movable slide 705, making it easy to remove the pressure plate 707 from the top of the movable slide 705 for replacement.

[0050] Working principle of this invention:

[0051] First, open the protective door panel 107. Rotate the adjusting stud 2 to move the lifting adjusting plate 4 upward along the mounting slide rod 103, causing the lower pressure frame 610 to move upward and lift the L-shaped pusher bar 703. The L-shaped pusher bar 703 rotates to lift the pusher protrusion 706, causing the movable slide 705 to extend out of the base 101, forming a wide loading space. Place the concrete test block 9 to be tested stably on the bearing plate 707 at the center of the top of the movable slide 705. Then, rotate the adjusting stud 2 to drive the lifting adjusting plate 4 to slide vertically downward along the four mounting slide rods 103. The lifting adjusting plate 4 drives the rectangular mounting frame 601 of the centering pusher mechanism 6 to move downward synchronously through the four corner connecting plates 402. When the bottom of the rectangular mounting frame 601 contacts the top of the limiting post 102, stop rotating the adjusting stud 2 and tighten the lock. Tighten the stud 3 to lock, complete the precise positioning of the test height, close the protective door 107, and the protective plate 106 and the protective door 107 form a fully enclosed test space to prevent the test block from breaking and splashing. During the downward movement of the rectangular mounting frame 601, the pressure frames 610 on both sides of its bottom simultaneously press down and push the L-shaped push bar 703 of the feeding mechanism 7. The L-shaped push bar 703 rotates with the mounting protrusion 702 as the fulcrum. The end away from the pressure frame 610 drags the push protrusion 706 through the slide groove, which drives the moving slide 705 to slide inward along the limiting slide groove 704 of the mounting plate 701. The guide slide rod 708 at the bottom of the moving slide 705 provides linear guidance. When the concrete test block 9 moves to be completely aligned with the pressure test plate 503, the test block enters the standard test position.

[0052] Four sets of electric push rods 501 extend synchronously, pushing the lower pressure plate 502 downwards. The lower pressure plate 502 drives four sets of adjusting push plates 504 to slide vertically within the rectangular through groove 603 of the rectangular mounting frame 601. The concave pushing groove 506 on the side of the adjusting push plate 504 pushes the pushing frame 604 along the rectangular through groove 603 toward the center of the rectangular groove 602. The pushing frame 604 drives the pushing plate 605 to move synchronously from all four sides, accurately pushing the concrete test block 9 to the exact center of the bearing plate 707, ensuring that the pressure surface is completely centered. After centering, the electric push rods 501 continue to extend at a uniform speed, so that the pressure testing plate 503 presses smoothly and vertically against the upper surface of the concrete test block 9, applying a continuous load according to the concrete strength testing standard. The pressure detection plate 503 collects pressure data in real time and transmits it to the control system to complete the compressive strength test. After the test, the electric push rod 501 retracts, driving the lower pressure plate 502 and the adjusting push plate 504 to move upward. The reset spring 609 pulls the push plate 605 and the push frame 604 outward through the reset slide rod 607 to reset, releasing the clamp on the concrete test block 9. The protective door plate 107 is opened, and the adjusting stud 2 is rotated in the opposite direction, driving the lifting adjustment plate 4 and the rectangular mounting frame 601 to move upward. The lower pressure frame 610 releases the downward pressure on the L-shaped push bar 703, pushing the moving slide 705 to extend outward along the limit slide groove 704 to the base 101. The tested test block can then be removed, completing a single test cycle and preparing for the next feeding.

[0053] When the pressure plate 707 is worn or deformed and needs to be replaced, the movable slide 705 is fully extended out of the base 101, and the electric push rods 801 on both sides are controlled to retract synchronously, driving the mounting block 802 to move downward. Under the linkage of connecting strip 803, connecting strip 805, and connecting strip 806, the clamping block 807 flips upward away from the edge of the pressure plate 707, completely releasing the clamping fixation on the pressure plate 707. The pushing block 808 at the bottom of the mounting block 802 moves downward synchronously, along L The pusher groove 810 of the L-shaped top bar 809 slides, driving the L-shaped top bar 809 to rotate around the mounting column 804. The lifting roller 811 at the end of the L-shaped top bar 809 lifts upward and contacts the bottom of the pressure plate 707, lifting the pressure plate 707 away from the top of the movable slide block 705. The operator can directly remove the pressure plate 707 for replacement. After replacement, the electric push rod 801 is extended, the clamping block 807 re-clamps the pressure plate 707, and the lifting roller 811 resets, completing the maintenance.

Claims

1. A test block strength testing device for concrete production, comprising a protective testing mechanism (1), characterized in that: The protective detection mechanism (1) includes a base (101), with limit posts (102) fixedly installed at the four corners of the top of the base (101), and mounting slide rods (103) fixedly connected to the top of the limit posts (102). A top plate (104) is fixedly installed at the top of the four mounting slide rods (103). An adjusting stud (2) is threaded through the center of the top of the top of the top plate (104). A locking stud (3) is threaded through the surface of the adjusting stud (2) on the top of the top of the top plate (104). A lifting adjustment plate (4) is rotatably installed at one end of the adjusting stud (2) at the bottom of the top plate (104) through a bearing. The four corners of the lifting adjustment plate (4) are slidably connected to the surface of the mounting slide rods (103). Trapezoidal pads (401) are fixedly installed at the center of the four sides of the top of the lifting adjustment plate (4). Connecting plates (402) are fixedly connected to the four corners of the bottom of the lifting adjustment plate (4). A pressure detection mechanism (5) is provided at the bottom of the lifting adjustment plate (4). A centering and pushing mechanism (6) is fixedly installed at the bottom of the four connecting plates (402). A fixing plate (105) is symmetrically fixedly installed on one side of the top of the base (101). A protective plate (106) is fixedly installed on the three sides between the base (101) and the top plate (104). A protective door plate (107) is rotatably installed at one corner of the opening of the three protective plates (106) between the base (101) and the top plate (104) via a rotating shaft. A pushing and feeding mechanism (7) is provided at the top of the base (101) between the four limiting columns (102). A concrete test block (9) is placed at the center of the top of the pushing and feeding mechanism (7). A pressing and lifting mechanism (8) is symmetrically provided on both sides of the pushing and feeding mechanism (7).

2. The concrete production test block strength testing device according to claim 1, characterized in that: The pressure detection mechanism (5) includes an electric push rod (501), and there are four electric push rods (501). The four electric push rods (501) are respectively embedded and fixedly installed at the four corners of the lifting adjustment plate (4). The telescopic ends of the bottom of the four electric push rods (501) are fixedly installed with a lower pressure plate (502). A pressure detection plate (503) is fixedly installed at the center of the bottom of the lower pressure plate (502). Adjustment push plates (504) are symmetrically fixedly installed at the center of the four sides of the bottom of the lower pressure plate (502). A limit block (505) is fixedly installed at the bottom end of the adjustment push plate (504). A concave push groove (506) is provided through the side of the adjustment push plate (504).

3. The concrete production test block strength testing device according to claim 2, characterized in that: The centering and pushing mechanism (6) includes a rectangular mounting frame (601), and the four corners of the rectangular mounting frame (601) are respectively slidably connected to the surface of the mounting slide rod (103). A rectangular groove (602) is provided through the center of the rectangular mounting frame (601). Rectangular through slots (603) are symmetrically provided through the center of the rectangular groove (602) around the rectangular mounting frame (601). An adjusting push plate (504) is slidably connected through the rectangular through slot (603). A pusher (604) is slidably installed through the rectangular through slot (603). One end of the pusher (604) inside the rectangular through slot (603) is slidably connected through a protrusion to the concave pusher slot (506).

4. The concrete production test block strength testing device according to claim 3, characterized in that: Two pushers (604) on the same side of the inner wall of the rectangular groove (602) extend through the rectangular through groove (603) and are fixedly installed inside the rectangular groove (602). An installation hole (606) is provided through the inner wall of the rectangular groove (602) between the two rectangular through grooves (603). A reset slide rod (607) is fixedly installed on one side of the pusher plate (605) between the two pushers (604). A limit plate (608) is fixedly installed at one end of the reset slide rod (607) extending through the inner wall of the rectangular groove (602) into the installation hole (606). A reset spring (609) is sleeved on the surface of the reset slide rod (607) inside the installation hole (606). A pressure bracket (610) is fixedly installed on both sides of the bottom of the rectangular mounting bracket (601).

5. The concrete production test block strength testing device according to claim 4, characterized in that: The pushing and feeding mechanism (7) includes a mounting plate (701), and there are two mounting plates (701). The two mounting plates (701) are fixedly installed on both sides of the top of the base (101). The two mounting plates (701) are respectively fixedly installed on the side where they meet and move away from each other. An L-shaped pushing strip (703) is rotatably installed on the surface of the mounting strip (702). The two right angles of the L-shaped pushing strip (703) are respectively provided with through grooves. One end of the L-shaped pushing strip (703) is slidably connected to the bottom end of the lower pressure frame (610). A limiting slide groove (704) is provided through one side of the mounting plate (701). A movable slide (705) is closely attached between the two mounting plates (701).

6. The concrete production test block strength testing device according to claim 5, characterized in that: Pushing protrusions (706) are fixedly installed at the center of both sides of the movable slide (705), and the pushing protrusions (706) are slidably installed inside the limiting slide groove (704). One end of the pushing protrusion (706) extends through the limiting slide groove (704) to the right angle plate of the L-shaped pushing strip (703), and the pushing protrusion (706) is slidably connected to the through groove of one right angle side of the L-shaped pushing strip (703). A pressure plate (707) is provided at the center of the top of the movable slide (705). Guide slide rods (708) are fixedly installed on both sides of the bottom of the movable slide (705), and the guide slide rods (708) are slidably connected inside the fixed plate (105). A reset spring (709) is sleeved on the surface of the guide slide rod (708) on one side of the fixed plate (105). The top of both sides of the movable slide (705) is provided with mounting grooves (710).

7. The concrete production test block strength testing device according to claim 6, characterized in that: The pressing and lifting mechanism (8) includes an electric push rod two (801), and the electric push rod two (801) is fixedly connected to one side of the bottom of the mounting groove (710). The top of the telescopic end of the electric push rod two (801) is fixedly installed with a mounting block (802). One end of the mounting block (802) is rotatably installed with a connecting strip one (803) through a protrusion. The inner wall of the mounting groove (710) is fixedly installed with a mounting column (804) on one side of the electric push rod two (801). The two ends of the mounting column (804) are respectively rotatably installed with connecting strip two (805). The top ends of the two connecting strips one (803) and the two connecting strips two (805) are rotatably installed with a pressing block (807) through a protrusion. One end of the pressing block (807) overlaps the edge of the top of the pressure plate (707).

8. The concrete production test block strength testing device according to claim 7, characterized in that: Connecting strip three (806) is rotatably mounted on both sides of the mounting block (802) and the center of connecting strip two (805) via protrusions. Pushing block (808) is fixedly mounted on the bottom of the mounting block (802) near the mounting post (804). L-shaped top strip (809) is rotatably mounted through the surface of the mounting post (804) between the two connecting strips two (805). Pushing groove (810) is symmetrically provided through one end of the L-shaped top strip (809). The two sides of the bottom end of the pushing block (808) are slidably connected to the inside of the pushing groove (810) through protrusions. Lifting roller (811) is rotatably mounted on the end of the L-shaped top strip (809) away from the pushing groove (810) via a rotating shaft.

9. A method of using a concrete production test block strength testing device, as described in any one of claims 1-8, characterized in that, The method of use includes the following steps: First, open the protective door panel (107), rotate the adjusting stud (2) to move the lifting adjusting plate (4) up along the mounting slide rod (103), and move the lower pressure frame (610) up to lift the L-shaped push bar (703). The L-shaped push bar (703) rotates to lift the push protrusion (706), which drives the moving slide (705) to extend out of the base (101) to form an open feeding space. Place the concrete test block (9) to be tested stably on the bearing plate (707) at the center of the top of the moving slide (705). Then rotate the adjusting stud (2) to drive the lifting adjusting plate (4) to slide vertically downward along the four mounting slide rods (103). The lifting adjusting plate (4) drives the rectangular mounting frame (601) of the centering push mechanism (6) to move down synchronously through the four corner connecting plates (402). When the bottom of the rectangular mounting frame (601) contacts the top of the limiting post (102), stop rotating the adjusting stud (2). Tighten the locking stud (3) to lock and complete the precise positioning of the test height. Close the protective door (107). The protective plate (106) and the protective door (107) form a fully enclosed test space to prevent the test block from breaking and splashing. During the downward movement of the rectangular mounting frame (601), the pressure frame (610) on both sides of its bottom presses down and pushes the L-shaped push bar (703) of the feeding mechanism (7). The L-shaped push bar (703) rotates with the mounting protrusion (702) as the fulcrum. The end away from the pressure frame (610) drags the push protrusion (706) through the slide groove, which drives the moving slide (705) to slide inward along the limiting slide groove (704) of the mounting plate (701). The guide rod (708) at the bottom of the moving slide (705) provides linear guidance. When the concrete test block (9) moves to be completely aligned with the pressure test plate (503) vertically, the test block enters the standard test position. The four sets of electric push rods (501) are activated to extend synchronously, pushing the lower pressure plate (502) downward. The lower pressure plate (502) drives the four sets of adjusting push plates (504) to slide vertically in the rectangular through groove (603) of the rectangular mounting frame (601). The concave pushing groove (506) on the side of the adjusting push plate (504) pushes the pushing frame (604) to move along the rectangular through groove (603) towards the center of the rectangular groove (602). The pushing frame (604) drives the pushing plate (605) to move synchronously on all four sides, accurately pushing the concrete test block (9) to the exact center of the bearing plate (707) to ensure that the pressure surface is completely centered. After centering is completed, the electric push rod (501) continues to extend at a uniform speed, so that the pressure testing plate (503) presses against the upper surface of the concrete test block (9) smoothly and vertically, and applies continuous load according to the concrete strength testing standard. The pressure detection plate (503) collects pressure data in real time and transmits it to the control system to complete the compressive strength test. After the test, the electric push rod (501) is retracted, which drives the lower pressure plate (502) and the adjusting push plate (504) to move upward. The reset spring (609) pulls the push plate (605) and the push frame (604) outward through the reset slide rod (607) to release the clamping of the concrete test block (9), open the protective door plate (107), rotate the adjusting stud (2) in the opposite direction, and drive the lifting adjustment plate (4) and the rectangular mounting frame (601) to move upward. The lower pressure frame (610) releases the pressure on the L-shaped push bar (703), and pushes the moving slide (705) to extend outward along the limit slide groove (704) to the base (101). The tested test block can then be removed, completing a single test cycle and preparing for the next feeding. When the pressure plate (707) is worn or deformed and needs to be replaced, the movable slide (705) is fully extended out of the base (101), and the electric push rods on both sides (801) are controlled to retract synchronously, driving the mounting block (802) to move downward. Under the linkage of connecting strip one (803), connecting strip two (805), and connecting strip three (806), the clamping block (807) flips upward away from the edge of the pressure plate (707), completely releasing the clamping and fixing of the pressure plate (707). The push block (808) at the bottom of the mounting block (802) moves downward synchronously, along the L-shaped... The push groove (810) of the top bar (809) slides, driving the L-shaped top bar (809) to rotate around the mounting column (804). The lifting roller (811) at the end of the L-shaped top bar (809) lifts upward and contacts the bottom of the pressure plate (707), lifting the pressure plate (707) away from the top of the movable slide (705). The operator can directly remove the pressure plate (707) for replacement. After the replacement is completed, the electric push rod two (801) extends, the clamping block (807) presses the pressure plate (707) again, the lifting roller (811) resets, and the maintenance is completed.

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