A concrete strength detection device for construction

Abstract

This invention relates to the field of concrete testing technology and provides a concrete strength testing device for building construction. The device includes a main body, a lifting support, a cylinder, a drive gear, and a loading platform. The lifting support is installed above the main body, the cylinder is installed on top of the lifting support, the drive gear is installed on the main body, and the loading platform is rotatably connected to the top of the main body. The drive gear and the loading platform mesh. The beneficial effects of this invention are: after the second lead screw rotates, the base and turntable lift the concrete sample upwards, causing the concrete sample to detach from the loading platform. Subsequently, the electrically driven threaded rod rotates and, through meshing, drives the turntable to rotate on the surface of the base. The rotation of the turntable causes the concrete sample to flip, with the bottom of the sample flipped to the top, thereby changing the pressure position of the concrete sample. Through bidirectional detection, the accuracy of concrete strength testing is improved.

Description

Technical Field

[0001] This invention belongs to the field of concrete testing technology, and particularly relates to a concrete strength testing device for building construction. Background Technology

[0002] In the construction industry, concrete, as the most widely used core building material, directly determines the safety, stability, and durability of building structures through its strength performance, making it one of the key indicators for measuring the quality of construction projects. Concrete strength testing is conducted throughout the entire construction process, from raw material inspection upon arrival and quality control during construction to project completion and acceptance. Accurate and efficient testing data plays a decisive role in ensuring project safety, avoiding potential quality problems, and extending the service life of buildings.

[0003] During the preparation or sampling process of concrete samples, defects such as unevenness and burrs on the edges and corners are prone to appear on the surface. Traditional testing equipment often relies on manual surface treatment using sandpaper or hand-held grinders, which is not only inefficient but also makes it difficult to ensure the levelness and smoothness of the sample surface. This leads to uneven pressure transmission during testing, causing stress concentration and affecting the accuracy of strength assessment. Concrete samples are prone to collapse during compressive strength testing, and the resulting flying debris can easily cause personal injury to nearby workers. Traditional equipment is mostly not equipped with protective structures, which cannot shield the collapsed stones and make it difficult to provide safety protection around the equipment.

[0004] The pressure bar of the testing equipment is retracted directly upwards after the test is completed, which can easily cause it to pull on the concrete sample block that has been bonded together under pressure, resulting in additional deformation of the sample block. This affects the staff's observation of the damage to the sample block's appearance and subsequent testing and analysis. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete strength testing device for building construction, aiming to solve the technical problems existing in the prior art mentioned in the background.

[0006] This invention is implemented as follows: a concrete strength testing device for building construction includes a testing device body, a lifting support, a cylinder, a drive gear, and a loading platform. The lifting support is installed above the testing device body, the cylinder is installed on the top of the lifting support, the drive gear is installed on the testing device body, and the loading platform is rotatably connected to the top of the testing device body. The drive gear and the loading platform mesh with each other. The invention also includes: The grinding assembly, mounted on the lifting bracket, is used to horizontally grind the upper surface of the concrete sample block. The protective components, mounted on the lifting support, are used to protect the surrounding area of ​​the concrete sample block during strength testing. A flipping assembly, mounted on a loading platform, is used to flip concrete samples on the platform. The flipping assembly includes a support frame fixed to the loading platform. A motor is mounted on the top of the support frame. A second lead screw is vertically rotatably connected to the middle of the support frame. The second lead screw is connected to the output end of the motor. A base is slidably connected to the motor. The middle of the base is slidably connected to the surface of the second lead screw. A turntable is rotatably connected to the surface of the base. An electrically driven threaded rod is mounted on the side wall of the base and meshes with the side wall of the turntable. Clamping plates are symmetrically slidably connected inside the turntable. A first toothed plate is fixedly connected to the surface of the clamping plates. A hollow gear rotatably connected to the middle of the turntable's inner cavity meshes with the first toothed plate on the surface of the clamping plates.

[0007] As a preferred technical solution of the present invention: a third lead screw is slidably connected inside the turntable, the inner wall of the hollow gear is slidably engaged with the outer wall of the third lead screw, a third spring is fixedly connected between the third lead screw and the inner wall of the turntable, a ratchet plate is fixedly connected to the clamping plate, a flipping frame is rotatably connected to the turntable, a locking plate is fixedly connected to the end of the flipping frame away from the turntable, the locking plate is unidirectionally engaged with the ratchet plate, and a fourth spring is sleeved at the rotatable connection between the flipping frame and the turntable.

[0008] As another preferred technical solution of the present invention: the side of the clamping plate away from the turntable is L-shaped, and when the clamping plate is engaged with the ratchet plate, the clamping plate can only slide relatively close to each other inside the turntable.

[0009] As another preferred technical solution of the present invention: a first lead screw is installed inside the loading platform, and flexible clamps are symmetrically slidably connected to the first lead screw.

[0010] As another preferred technical solution of the present invention: the grinding assembly includes a slide that is slidably connected to the lifting bracket, a first spring being fixedly connected between the top of the slide and the inner cavity of the lifting bracket, an electric drive slide being slidably connected to the slide, and a grinding machine being installed in the middle of the electric drive slide.

[0011] As another preferred technical solution of the present invention: the grinding machine is inclined at a 45-degree angle to the top of the concrete sample block.

[0012] As another preferred technical solution of the present invention: the protective component includes a pressure rod mounted on a cylinder, an annular seat rotatably connected to the side wall of the pressure rod, a slide rod slidably connected to the annular seat, a fixed seat fixedly connected to the annular seat, a baffle rotatably connected to the fixed seat, a stop plate fixedly connected to the side of the baffle near the pressure rod, a second spring fixedly connected between the stop plate and the upper surface of the annular seat, a toothed cylinder slidably connected inside the pressure rod, a toothed shaft rotatably connected to the annular seat, a toothed groove formed on the slide rod, and the side wall of the toothed groove and the toothed cylinder meshing with the toothed shaft.

[0013] As another preferred technical solution of the present invention: the columns on the slide rod are all vertically below the baffle, and the baffle is in a horizontal state when the second spring is not under force.

[0014] The beneficial effects of the embodiments of the present invention are as follows: After the second lead screw rotates, the base and turntable lift the concrete sample block upward, causing the concrete sample block to detach from the loading platform. Then, the electrically driven threaded rod rotates and drives the turntable to rotate on the surface of the base through meshing. After the turntable rotates, it flips the concrete sample block, causing the bottom of the concrete sample block to be flipped to the top, thereby changing the pressure position of the concrete sample block. Through bidirectional detection, the accuracy of concrete strength testing is improved.

[0015] After the baffle is flipped, it changes from a horizontal to an inclined state and blocks the upper part of the concrete sample block, so that when the concrete sample block is under pressure, the crushed stones at the top will not pose a safety hazard to the surrounding workers.

[0016] The sliding rod moves downwards by meshing with the toothed shaft and tooth groove. This ensures that the bottom of the sliding rod remains in contact with the top of the concrete sample block even when the pressure rod moves the annular seat upwards. This causes the bottom of the annular seat and the sliding rod to disengage from the top of the concrete sample block at staggered intervals, gradually reducing the contact area between the concrete sample block and the equipment. This effectively reduces the impact on the concrete sample block during equipment recovery. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a front view schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 3 This is an exploded view of the grinding component structure provided in an embodiment of the present invention; Figure 4 This is a partial exploded view of the loading platform structure provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of the protective component provided in an embodiment of the present invention; Figure 6 This is an exploded view of the protective component structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the position of the flipping component structure provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the overall structure of the flipping component provided in an embodiment of the present invention; Figure 9 This is an exploded view of the flipping component structure provided in an embodiment of the present invention; Figure 10This is a cross-sectional view of the flipping component structure provided in an embodiment of the present invention.

[0018] In the picture: 1. Main body of the testing equipment; 2. Lifting support; 3. Cylinder; 4. Drive gear; 5. Loading platform; 6. Grinding assembly; 7. Protective assembly; 8. Tilting assembly; 51. First lead screw; 52. Flexible clamp; 61. Carriage; 62. First spring; 63. Electrically driven slide; 64. Grinding machine; 71. Pressure rod; 72. Ring seat; 73. Slide rod; 74. Fixed seat; 75. Baffle; 76. Support plate; 77. Second spring; 78. Gear cylinder; 79. Gear shaft; 710. Gear groove; 81. Support frame; 82. Motor; 83. Second lead screw; 84. Base; 85. Turntable; 86. Electric drive threaded rod; 87. Clamping plate; 88. First toothed plate; 89. Hollow gear; 810. Third lead screw; 811. Third spring; 812. Racket plate; 813. Tilting frame; 814. Clamping plate; 815. Fourth spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0021] like Figures 7 to 10 As shown, in one embodiment, a concrete strength testing device for building construction is proposed, including a testing device body 1, a lifting support 2, a cylinder 3, a drive gear 4, and a loading platform 5. The lifting support 2 is installed above the testing device body 1, the cylinder 3 is installed on the top of the lifting support 2, the drive gear 4 is installed on the testing device body 1, and the loading platform 5 is rotatably connected to the top of the testing device body 1. The drive gear 4 and the loading platform 5 mesh with each other. The device also includes: Grinding component 6, mounted on lifting bracket 2, is used to horizontally grind the upper surface of the concrete sample block. The protective component 7 is installed on the lifting support 2 and is used to protect the surrounding area of ​​the concrete sample block during strength testing. A flipping assembly 8, mounted on a loading platform 5, is used to flip concrete samples on the loading platform 5. The flipping assembly 8 includes a support frame 81 fixed on the loading platform 5. A motor 82 is mounted on the top of the support frame 81. A second lead screw 83 is vertically rotatably connected to the middle of the support frame 81. The second lead screw 83 is connected to the output end of the motor 82. A base 84 is slidably connected to the motor 82. The middle of the base 84 is slidably connected to the surface of the second lead screw 83. A turntable 85 is rotatably connected to the surface of the base 84. An electrically driven threaded rod 86 is mounted on the side wall of the base 84. The electrically driven threaded rod 86 meshes with the side wall of the turntable 85. A clamping plate 87 is symmetrically slidably connected inside the turntable 85. A first toothed plate 88 is fixedly connected to the surface of the clamping plate 87. A hollow gear 89 rotatably connected to the middle of the inner cavity of the turntable 85 meshes with the first toothed plate 88 on the surface of the clamping plate 87.

[0022] In practical applications, the embodiments of the present invention The operator places the concrete sample to be tested on the loading platform 5 and pushes it towards the side of the flipping component 8. When the side of the concrete sample comes into contact with the third lead screw 810, the operator continues to push the concrete sample, causing the third lead screw 810 to be pushed into the turntable 85. When the third lead screw 810 slides into the turntable 85, the hollow gear 89 will slide and engage with the outer wall of the third lead screw 810, thus rotating inside the turntable 85. When the hollow gear 89 rotates, it will mesh with the first toothed plate 88 of the clamping plate 87, causing the clamping plate 87 to slide relatively close on both sides of the turntable 85. When the clamping plate 87 slides relatively close, it will clamp the concrete sample to be tested, so that the flipping component 8 can lift and flip the concrete sample to be tested by clamping it.

[0023] After the concrete sample block is subjected to single-sided pressure testing, the motor 82 drives the second lead screw 83 to rotate inside the motor 82. After the second lead screw 83 rotates, the base 84 and turntable 85 lift the concrete sample block upward, causing the concrete sample block to detach from the loading platform 5. Subsequently, the electrically driven threaded rod 86 rotates and drives the turntable 85 to rotate on the surface of the base 84 through meshing. After the turntable 85 rotates, it causes the concrete sample block to flip over, so that the bottom of the concrete sample block is flipped to the top, thereby changing the pressure position of the concrete sample block. Through bidirectional detection, the accuracy of concrete strength testing is improved.

[0024] like Figures 7 to 10As shown, in a preferred embodiment of the present invention, a third lead screw 810 is slidably connected inside the turntable 85, the inner wall of the hollow gear 89 is slidably engaged with the outer wall of the third lead screw 810, a third spring 811 is fixedly connected between the third lead screw 810 and the inner wall of the turntable 85, a ratchet plate 812 is fixedly connected to the clamping plate 87, a flipping frame 813 is rotatably connected to the turntable 85, a locking plate 814 is fixedly connected to the end of the flipping frame 813 away from the turntable 85, the locking plate 814 and the ratchet plate 812 are unidirectionally engaged, and a fourth spring 815 is sleeved at the rotatable connection between the flipping frame 813 and the turntable 85.

[0025] In practical application, when the clamping plates 87 on both sides of the turntable 85 slide relatively close together, the inclined surface on the ratchet plate 812 will press against the clamping plate 814, causing the clamping plate 814 to rise upwards when the ratchet plate 812 moves, thus not affecting the sliding of the clamping plate 87 into the turntable 85. When the clamping plate 814 rises, the flipping frame 813 will rotate on the surface of the turntable 85, and the fourth spring 815 will be torsiond to generate torque. When the end side of the clamping plate 87 is clamped to the concrete sample block to be tested, the operator stops pushing the concrete sample block. At this time, the clamping plate 87 no longer... When the third spring 811, which is compressed and close to the ground, slides, it will generate a rebound force, which will cause the hollow gear 89 to generate a reverse rotation force. Ultimately, this will give the clamp 87 a force to slide back to both sides of the turntable 85. When the clamp 87 moves slightly to both sides of the turntable 85 inside the turntable 85, the locking plate 814 will abut against the vertical surface of the ratchet plate 812, thereby locking the locking plate 814 with the ratchet plate 812, preventing the clamp 87 from sliding outward inside the turntable 85. The fourth spring 815 will use torque to keep the locking plate 814 in the locked state with the ratchet plate 812.

[0026] like Figures 7 to 10 As shown, in another preferred embodiment of the present invention, the side of the clamping plate 87 away from the turntable 85 is L-shaped. When the clamping plate 814 is engaged with the ratchet plate 812, the clamping plate 87 can only slide relatively close to each other inside the turntable 85.

[0027] like Figure 7 As shown, in another preferred embodiment of the present invention, a first lead screw 51 is installed inside the loading platform 5, and a flexible clamp 52 is symmetrically slidably connected to the first lead screw 51.

[0028] In practical application, the staff places the concrete sample to be tested on the loading platform 5 and clamps it with the flexible clamp 52 to keep the concrete sample stationary when it is compressed from the top, thus preventing the concrete sample from shifting on the loading platform 5 when compressed and affecting the test results.

[0029] like Figures 1 to 3As shown, in another preferred embodiment of the present invention, the grinding assembly 6 includes a slide 61 slidably connected to the lifting bracket 2, a first spring 62 fixedly connected between the top of the slide 61 and the inner cavity of the lifting bracket 2, an electric drive slide 63 slidably connected to the slide 61, and a grinding machine 64 installed in the middle of the electric drive slide 63.

[0030] In practical application, the concrete sample block is placed on the loading platform 5. The electric drive slide 63 is activated and slides on the carriage 61. When the electric drive slide 63 moves, the grinder 64 grinds the upper surface of the concrete sample block. When the grinder 64 contacts the top corner of the concrete sample block, the grinder 64 and the electric drive slide 63 drive the carriage 61 to slide vertically inside the lifting bracket 2, so that the height of the grinder 64 can be adjusted according to the height of the concrete sample block. The first spring 62 will elastically extend when the carriage 61 slides, thereby ensuring that the grinder 64 is in contact with the top of the concrete sample block.

[0031] like Figure 3 As shown, in another preferred embodiment of the present invention, the grinding machine 64 is inclined at a 45-degree angle to the top of the concrete sample block.

[0032] like Figure 2 , Figure 5 and Figure 6 As shown, in another preferred embodiment of the present invention, the protective component 7 includes a pressure rod 71 mounted on the cylinder 3. An annular seat 72 is rotatably connected to the side wall of the pressure rod 71. A slide rod 73 is slidably connected to the annular seat 72. A fixed seat 74 is fixedly connected to the annular seat 72. A baffle 75 is rotatably connected to the fixed seat 74. A stop plate 76 is fixedly connected to the side of the baffle 75 near the pressure rod 71. A second spring 77 is fixedly connected between the stop plate 76 and the upper surface of the annular seat 72. A toothed cylinder 78 is slidably connected inside the pressure rod 71. A toothed shaft 79 is rotatably connected to the annular seat 72. A toothed groove 710 is provided on the slide rod 73. The side walls of the toothed groove 710 and the toothed cylinder 78 are both engaged with the toothed shaft 79.

[0033] In practical application, the cylinder 3 drives the pressure rod 71 to press against the top of the concrete sample block. When the pressure rod 71 moves, it will drive the annular seat 72 and the sliding rod 73 to move downward together. When the bottom of the sliding rod 73 contacts the top of the concrete sample block, the pressure rod 71 continues to move downward, causing the sliding rod 73 to insert upward into the annular seat 72. The top of the sliding rod 73 will press against the abutment plate 76 of the baffle 75, causing the baffle 75 to flip on the fixed seat 74. The second spring 77 is stretched and elastically extended. After the baffle 75 flips, it changes from a horizontal state to an inclined state and blocks the upper part of the concrete sample block, so that when the concrete sample block is compressed, the broken stone at the top will not pose a safety hazard to the surrounding workers.

[0034] During the strength testing of the concrete sample, the bottoms of the pressure rod 71, the ring seat 72, and the sliding rod 73 will be embedded into the top of the concrete sample due to downward pressure, thus adhering to the concrete sample. If the pressure rod 71 is pulled back directly upward, it will cause deformation of the concrete sample, thereby affecting the staff's observation of the changes in the appearance of the concrete sample after the strength test.

[0035] During the upward retraction of the pressure rod 71, the compression of the pressure rod 71 on the toothed cylinder 78 causes the toothed cylinder 78 to mesh with the toothed shaft 79, rotating the toothed shaft 79. Then, the meshing of the toothed shaft 79 with the tooth groove 710 causes the sliding rod 73 to move downward. As a result, when the pressure rod 71 moves the annular seat 72 upward, the bottom of the sliding rod 73 is still in contact with the top of the concrete sample block. This causes the bottom of the annular seat 72 and the sliding rod 73 to disengage from the top of the concrete sample block at staggered times, gradually reducing the contact area between the concrete sample block and the equipment, thereby effectively reducing the impact on the concrete sample block during equipment recovery.

[0036] like Figure 5 and Figure 6 As shown, in a preferred embodiment of the present invention, the columns on the slide rod 73 are all vertically below the baffle 75, and the baffle 75 is in a horizontal state when the second spring 77 is not under force.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete strength testing device for building construction, comprising a testing device body (1), a lifting support (2), a cylinder (3), a drive gear (4), and a loading platform (5), wherein the lifting support (2) is installed above the testing device body (1), the cylinder (3) is installed on the top of the lifting support (2), the drive gear (4) is installed on the testing device body (1), and the loading platform (5) is rotatably connected to the top of the testing device body (1), wherein the drive gear (4) and the loading platform (5) mesh, characterized in that, Also includes: The grinding component (6) is set on the lifting bracket (2) and is used to grind the upper surface of the concrete sample block horizontally. The protective component (7) is installed on the lifting support (2) and is used to protect the surrounding area of ​​the concrete sample block during strength testing; A flipping assembly (8) is installed on a loading platform (5) for flipping concrete samples on the loading platform (5). The flipping assembly (8) includes a support frame (81) fixed on the loading platform (5). A motor (82) is installed on the top of the support frame (81). A second lead screw (83) is vertically rotatably connected to the middle of the support frame (81). The second lead screw (83) is connected to the output end of the motor (82). A base (84) is slidably connected to the motor (82). The middle of the base (84) is connected to the second lead screw. The rod (83) is slidably connected to the surface, and the base (84) is rotatably connected to the surface of the turntable (85). An electric drive threaded rod (86) is installed on the side wall of the base (84). The electric drive threaded rod (86) meshes with the side wall of the turntable (85). A clamping plate (87) is symmetrically slidably connected inside the turntable (85). A first toothed plate (88) is fixedly connected to the surface of the clamping plate (87). A hollow gear (89) rotatably connected in the middle of the inner cavity of the turntable (85) meshes with the first toothed plate (88) on the surface of the clamping plate (87).

2. The concrete strength testing equipment for building construction according to claim 1, characterized in that, The turntable (85) is internally slidably connected to a third lead screw (810). The inner wall of the hollow gear (89) is slidably engaged with the outer wall of the third lead screw (810). A third spring (811) is fixedly connected between the third lead screw (810) and the inner wall of the turntable (85). A ratchet plate (812) is fixedly connected to the clamping plate (87). A flipping frame (813) is rotatably connected to the turntable (85). A clamping plate (814) is fixedly connected to one end of the flipping frame (813) away from the turntable (85). The clamping plate (814) and the ratchet plate (812) are unidirectionally engaged. A fourth spring (815) is sleeved at the rotatable connection between the flipping frame (813) and the turntable (85).

3. The concrete strength testing equipment for building construction according to claim 2, characterized in that, The side of the clamp (87) away from the turntable (85) is L-shaped. When the clamp plate (814) is engaged with the ratchet plate (812), the clamp plate (87) can only slide relatively close to each other inside the turntable (85).

4. The concrete strength testing equipment for building construction according to claim 1, characterized in that, The loading platform (5) is equipped with a first lead screw (51), and a flexible clamp (52) is symmetrically slidably connected to the first lead screw (51).

5. A concrete strength testing device for building construction according to claim 1, characterized in that, The grinding assembly (6) includes a slide (61) slidably connected to the lifting bracket (2), a first spring (62) is fixedly connected between the top of the slide (61) and the inner cavity of the lifting bracket (2), an electric drive slide (63) is slidably connected to the slide (61), and a grinding machine (64) is installed in the middle of the electric drive slide (63).

6. The concrete strength testing equipment for building construction according to claim 5, characterized in that, The grinding machine (64) is tilted at a 45-degree angle to the top of the concrete sample block.

7. The concrete strength testing equipment for building construction according to claim 1, characterized in that, The protective assembly (7) includes a pressure rod (71) mounted on a cylinder (3). An annular seat (72) is rotatably connected to the side wall of the pressure rod (71). A slide rod (73) is slidably connected to the annular seat (72). A fixed seat (74) is fixedly connected to the annular seat (72). A baffle (75) is rotatably connected to the fixed seat (74). A stop plate (76) is fixedly connected to the side of the baffle (75) near the pressure rod (71). A second spring (77) is fixedly connected between the stop plate (76) and the upper surface of the annular seat (72). A toothed cylinder (78) is slidably connected inside the pressure rod (71). A toothed shaft (79) is rotatably connected to the annular seat (72). A toothed groove (710) is provided on the slide rod (73). The side walls of the toothed groove (710) and the toothed cylinder (78) mesh with the toothed shaft (79).

8. A concrete strength testing device for building construction according to claim 7, characterized in that, The columns on the slide bar (73) are all vertically below the baffle (75), and the baffle (75) is in a horizontal state when the second spring (77) is not under force.

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