Concrete strength detection device for building construction

Abstract

The invention discloses a concrete strength detection device for building construction, and belongs to the technical field of building construction, through continuous downward movement of material pressing assemblies, the height of two material pressing assemblies can be adaptively adjusted according to the concave-convex structure of the top of a concrete test block; in the process, when one pressing head is pressed, the supporting rod or the hinge rod is extruded, the supporting rod or the hinge rod rotationally connected with the pressing head deflects and pushes the sliding block to slide in the sliding groove, and the sliding block pushes the adjacent hinge rod to deflect in the horizontal moving process. The other one or more pressure heads are synchronously pushed to adjust the height, so that the heights of the pressure heads can be adaptively adjusted according to the inclined, concave-convex or pitted surface shape on the concrete test block, the pressure heads are stably attached to the contact surface of the concrete test block, and the load is prevented from being transmitted only through local high points; the pressure head cannot generate local impact load at the moment of being in contact with the concrete test block, and the accuracy and the reliability of a detection result are improved.

Description

Technical Field

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

[0002] In the field of construction, concrete is the most widely used structural material. Its strength is directly related to the safety, durability and service life of the building. It is one of the core indicators to ensure the quality of the project. With the development of modern buildings towards high-rise, large-span and complex, higher requirements are placed on the precise control of concrete strength. Therefore, concrete strength testing has become an indispensable key link in the entire construction process. Mechanical stress is usually used to test the strength of concrete materials.

[0003] The strength test of concrete test blocks is the core link of building material quality control. In the process of strength testing of concrete test blocks by traditional concrete test block pressure testing machines, the concrete test blocks need to be placed in the testing machine for testing and then taken out and replaced with the next concrete test block to be tested. Such frequent operations affect the testing efficiency and are difficult to meet the needs of large-scale testing. In addition, the outer wall of the concrete test block has unevenness, such as tilt, bumps, and rough surfaces, which makes it difficult for the pressure head of the concrete test block pressure testing machine to stably fit with the contact surface of the test block. The load is only transmitted through local high points, forming an obvious eccentric stress state, and the pressure head will also generate local impact loads at the moment of contact, affecting the accuracy and reliability of the test results. Summary of the Invention

[0004] The purpose of the present invention is to provide a concrete strength testing device for construction, so as to solve the problem proposed in the above-mentioned background technology that the concrete test block needs to be placed in the testing machine for testing and then taken out and replaced with the next concrete test block to be tested. Such frequent operations affect the testing efficiency and are difficult to meet the needs of large-scale testing; and the outer wall of the concrete test block has unevenness, such as tilt, bumps, roughness and other defects, which makes it difficult for the pressure head of the concrete test block pressure testing machine to stably fit with the contact surface of the test block, affecting the detection accuracy.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A concrete strength testing device for construction, comprising a strength testing workbench, wherein support legs are fixed at the four corners of the bottom of the strength testing workbench, slideways are respectively provided on the front and rear sides of the strength testing workbench, a concrete test block transfer assembly is overlapped on the strength testing workbench, the bottom of the concrete test block transfer assembly slides in the two slideways, a gear is provided in front of the concrete test block transfer assembly, a motor is fixedly connected to the bottom of the gear, a support seat is fixed to the bottom of the motor, the support seat is fixed to the bottom of the strength testing workbench, and a support seat is provided on one side of the strength testing workbench. There is a material drop hole, which is located between two slides, and a material receiving assembly is provided below the material drop hole, and one side of the bottom of the material receiving assembly is fixed inside the support seat, and the strength detection workbench is fixedly connected to a frame, and a concrete specimen pressure testing machine is installed in the frame, and a pressure arm is provided at the bottom of the concrete specimen pressure testing machine, and the bottom of the pressure arm is fixedly connected to a pressure seat, and horizontal slide grooves are respectively provided on both sides of the inside of the pressure seat, and a vertical slide groove is provided on one side of the inner wall of the horizontal slide groove, and a push assembly is slidably connected in the two horizontal slide grooves, and the bottom end of the push assembly passes through the vertical slide groove and is fixed with a material pressing assembly.

[0007] As a further solution of the present invention, the concrete specimen transfer assembly includes a concrete specimen pushing platform, a limiting hole is opened in the middle of the concrete specimen pushing platform, and two slides are fixed at the bottom of the concrete specimen pushing platform, the slides are slidably connected in the slide, and the cross-sectional shapes of the slide and the slide are both T-shaped.

[0008] As a further solution of the present invention, baffles are respectively provided on the front and rear sides of the concrete specimen pushing platform, and raised portions are respectively provided around the corresponding limiting holes in the middle of the concrete specimen pushing platform. A plurality of teeth are fixed on the front side of the concrete specimen pushing platform, and the teeth are meshed with gears.

[0009] As a further solution of the present invention, the material receiving assembly includes a support frame, one side of the bottom of the support frame is fixed in the support seat, the middle part of the support frame is rotatably connected to a hydraulic telescopic rod through a pin shaft, and the other end of the hydraulic telescopic rod is rotatably connected to a material receiving box through a pin shaft, and two supporting springs are fixedly connected between the highest point of one side of the material receiving box and the support frame, the lowest point of the bottom of the material receiving box is rotatably connected to the support frame through a pin shaft, and the highest point of the top of the material receiving box is below the drop hole.

[0010] As a further solution of the present invention, the pushing assembly includes a slide, which slides through two horizontal slide grooves. Two first springs are fixedly connected between the two sides of the interior of the slide and the horizontal slide grooves, and the two sides of the slide are respectively set as inclined surfaces.

[0011] As a further solution of the present invention, a push plate is slidably connected in the vertical slide groove, the top of the push plate is set as an inclined surface, the inclined surface on one side of the slide overlaps the inclined surface on the top of the push plate, and two extension blocks are fixed to the bottom of the push plate. The bottom ends of the two extension blocks pass through the vertical slide groove and are fixed to the top of the pressing assembly. Two second springs are fixedly connected between the bottom of the push plate and the bottom of the vertical slide groove.

[0012] As a further solution of the present invention, the pressing assembly includes a fixed seat, which is fixed to the bottom of the two extension blocks. Sliding grooves are respectively provided on both sides of the bottom of the fixed seat. A slider is slidably connected in the sliding groove. The cross-sectional shape of the slider and the sliding groove are both T-shaped, and the same sliding rod is fixed inside the two sliding grooves.

[0013] As a further solution of the present invention, the sliding rod slides through the middle of the slider, and a third spring is fixed on both sides of the outer wall of the sliding rod, and the two ends of the third spring are fixed between the slider and the inner wall of the sliding groove. The bottom of the slider is rotatably connected to two hinged rods through a pin shaft, and the two sides of the bottom of the fixed seat are rotatably connected to support rods through a pin shaft, and the bottom ends of the two hinged rods in the middle and the hinged rods and the bottom ends of the support rods on both sides are rotatably connected to pressure heads through pin shafts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When the push plate moves up, it pushes the slide to move horizontally in the horizontal groove, so that the inclined surface on the other side of the slide moves downward, and the push plate drives the connected push plate to move downward through the extension block until the bottom of the two push plates are in contact with the top of the concrete test block. In this process, the height of the two push plates is adjusted adaptively according to the concave and convex structure of the top of the concrete test block; the multiple pressure heads in the press assembly squeeze the concrete test block. If there are inclination, concave-convex or rough surface defects in the area below the corresponding pressing assembly on the concrete test block, one or several pressure heads will first be close to the high point of the concrete test block. When one of the pressure heads is under pressure, it will squeeze the support rod or hinge rod, and the support rod or hinge rod rotatably connected to the pressure head will deflect and push the slider to slide in the sliding groove. During the horizontal movement of the slider, it will push the adjacent hinge rod to deflect, and simultaneously push another one or more pressure heads to adjust the height, so that the height of multiple pressure heads can be adaptively adjusted according to the inclination, concave-convex or rough surface shape on the concrete test block, so that the contact surface of the pressure head and the concrete test block can be stably fitted, preventing the load from being transmitted only through local high points, so that the pressure head will not generate local impact load at the moment of contact with the concrete test block, thereby improving the accuracy and reliability of the test results.

[0016] 2. The present invention controls the motor to drive the gear to rotate clockwise, and the gear drives the concrete test block pushing platform to move to the right through the teeth. The concrete test block pushing platform pushes the concrete test block to the right on the strength testing workbench through the limit hole, and limits the slide seat through the T-shaped slideway below, thereby improving the stability of the concrete test block pushing platform to drive the concrete test block to move horizontally, until the concrete test block is pushed to the testing area below the concrete test block pressure testing machine. After completing the strength testing of the current concrete test block, the motor is controlled to work and drive the gear to rotate clockwise, and the gear drives the concrete test block pushing platform to move to the right through the teeth, so that the concrete test block pushing platform passes through the limit hole to push the concrete test block to the right. Push, when the limit hole in the concrete test block pushing platform overlaps with the drop hole position on the strength testing workbench, the concrete test block falls into the receiving box in the receiving assembly through the drop hole, so that the concrete test block can be removed from the strength testing workbench, and the concrete test block slides along the inclined surface of the receiving box, so that the tested concrete test blocks can be collected in a centralized manner without the need for human assistance in the handling operation. Secondly, the motor drives the gear to rotate counterclockwise, and the gear drives the pushing platform to the left through the teeth, so that the limit hole in the pushing platform is located on the left side of the strength testing workbench, so that the material discharge test can be carried out again. Therefore, in the process of switching materials, the burden of carrying the concrete test blocks back and forth is prevented, which can meet the needs of large-scale testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the side view of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the strength testing workbench and concrete test block transfer assembly of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a partial cross section of a concrete test block transfer assembly of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the material connection assembly of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a partial cross section of the pressure seat of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the push assembly of the present invention;

[0025] Figure 8 Schematic diagram of the structure of the material pressing assembly of the present invention;

[0026] Figure 9 For the present invention Figure 8 Schematic diagram of the structure enlarged at point A in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Strength test bench; 2. Support legs; 3. Slide; 4. Concrete test block transfer assembly; 401. Concrete test block pusher; 402. Limiting hole; 403. Slide seat; 404. Tooth; 5. Gear; 6. Motor; 7. Support seat; 8. Dropping hole; 9. Material receiving assembly; 901. Support frame; 902. Hydraulic telescopic rod; 903. Material receiving box; 904. Support spring; 10. Rack; 11. Concrete test block pressure test Testing machine; 12. Pressing arm; 13. Pressing seat; 14. Horizontal slide; 15. Vertical slide; 16. Pushing assembly; 161. Slide; 162. First spring; 163. Push plate; 164. Extension block; 165. Second spring; 17. Pressing assembly; 171. Fixed seat; 172. Sliding groove; 173. Support rod; 174. Articulated rod; 175. Pressing head; 176. Sliding block; 177. Sliding rod; 178. Third spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figures 1-9 , the present invention provides a technical solution:

[0031] A concrete strength testing device for construction includes a strength testing workbench 1, support legs 2 are fixed at the four corners of the bottom of the strength testing workbench 1, slideways 3 are respectively provided on the front and back sides of the strength testing workbench 1, a concrete test block transfer assembly 4 is overlapped on the strength testing workbench 1, the bottom of the concrete test block transfer assembly 4 slides in the two slideways 3, a gear 5 is provided in front of the concrete test block transfer assembly 4, the bottom of the gear 5 is fixedly connected to a motor 6, the bottom of the motor 6 is fixedly connected to a support seat 7, the support seat 7 is fixed to the bottom of the strength testing workbench 1, and a drop hole 8 is provided on one side of the strength testing workbench 1. Located between the two slides 3, a material receiving assembly 9 is provided below the drop hole 8, and one side of the bottom of the material receiving assembly 9 is fixed inside the support seat 7. The strength detection workbench 1 is fixedly connected to a frame 10, and a concrete specimen pressure testing machine 11 is installed in the frame 10. A pressure arm 12 is provided at the bottom of the concrete specimen pressure testing machine 11, and a pressure seat 13 is fixedly connected to the bottom of the pressure arm 12. Horizontal slide grooves 14 are respectively provided on both sides of the inside of the pressure seat 13, and a vertical slide groove 15 is provided on one side of the inner wall of the horizontal slide groove 14. A pushing assembly 16 is slidably connected in the two horizontal slide grooves 14, and the bottom end of the pushing assembly 16 passes through the vertical slide groove 15 and is fixed with a material pressing assembly 17.

[0032] As a further solution of the present invention, the concrete test block transfer assembly 4 includes a concrete test block pushing platform 401, a limiting hole 402 is provided in the middle of the concrete test block pushing platform 401, and two slides 403 are fixed to the bottom of the concrete test block pushing platform 401, the slides 403 are slidably connected in the slide 3, and the cross-sectional shape of the slide 3 and the slide 403 are both T-shaped;

[0033] During operation, the setting of the limit hole 402 facilitates the concrete test block to fall from the strength testing workbench 1 without the need for human assistance in carrying; the slide 403 is limited by the T-shaped slide 3 below, thereby improving the stability of the concrete test block pushing platform 401 in driving the horizontal movement of the concrete test block.

[0034] As a further solution of the present invention, a retaining bar is provided on the front and rear sides of the concrete test block pushing platform 401, and a protrusion is provided around the middle of the concrete test block pushing platform 401 corresponding to the limiting hole 402. A plurality of teeth 404 are fixed to the front side of the concrete test block pushing platform 401, and the teeth 404 are meshed with the gear 5.

[0035] During operation, the setting of the baffle prevents the fragments produced after the concrete is crushed from sliding off the concrete test block pushing platform 401. The protrusion on the limiting hole 402 can increase the contact area between the concrete test block pushing platform 401 and the outer wall of the concrete test block, thereby improving the stability of the concrete test block pushing platform 401 in driving the test block to move and preventing the test block from tipping over.

[0036] As a further solution of the present invention, the material receiving assembly 9 includes a support frame 901, one side of the bottom of the support frame 901 is fixed in the support seat 7, the middle part of the support frame 901 is rotatably connected to a hydraulic telescopic rod 902 through a pin shaft, the other end of the hydraulic telescopic rod 902 is rotatably connected to a material receiving box 903 through a pin shaft, two supporting springs 904 are fixedly connected between the highest point of one side of the material receiving box 903 and the support frame 901, the lowest point of the bottom of the material receiving box 903 is rotatably connected to the support frame 901 through a pin shaft, and the highest point of the top of the material receiving box 903 is below the blanking hole 8;

[0037] During operation, the concrete test block falls into the receiving box 903 in the receiving assembly 9 through the drop hole 8, so that the concrete test block can be removed from the strength testing workbench 1;

[0038] During operation, after the concrete test block falls into the receiving box 903, the highest point of the bottom of the receiving box 903 is compressed, squeezing the hydraulic telescopic rod 902 and the two supporting springs 904 below. The hydraulic telescopic rod 902 can play a buffering role in connecting the material box 903, weakening the force generated by the concrete test block connecting to the material box 903, and cooperating with the elastic force of the supporting springs 904 to support the material box 903, which can provide buffering and damping for the material box 903, preventing the material box 903 from vibrating too much and bouncing the concrete test block;

[0039] The concrete test blocks slide down along the inclined surface of the material receiving box 903, so that the tested concrete test blocks can be collected centrally.

[0040] As a further embodiment of the present invention, the push assembly 16 includes a slide 161 that slides through the two transverse slots 14. Two first springs 162 are fixedly connected between the two sides of the interior of the slide 161 and the transverse slots 14, and the two sides of the slide 161 are respectively configured as inclined surfaces.

[0041] During operation, the slide 161 is supported and limited by the transverse slide groove 14 to improve the stability of the horizontal movement of the slide 161. The pulling force of the first spring 162 causes the slide 161 to move to the middle position of the two transverse slide grooves 14, so as to move the slide 161 to the initial position for the next detection work.

[0042] As a further solution of the present invention, a push plate 163 is slidably connected in the vertical slide 15. The top of the push plate 163 is set as an inclined surface. The inclined surface on one side of the slide 161 overlaps the inclined surface of the top of the push plate 163. Two extension blocks 164 are fixed to the bottom of the push plate 163. The bottom ends of the two extension blocks 164 pass through the vertical slide 15 and are fixed to the top of the pressing assembly 17. Two second springs 165 are fixedly connected between the bottom of the push plate 163 and the bottom of the vertical slide 15.

[0043] When working, the pressing seat 13 drives the two pressing assemblies 17 at the bottom to move downward, so that the convex part on the concrete test block will first contact one of the pressing assemblies 17. As the pressing assembly 17 continues to move downward, the fixed seat 171 will drive the push plate 163 to move upward through the two extension blocks 164, so that the push plate 163 can slide inside the vertical slide 15. Because the inclined surface of the top of the push plate 163 overlaps the inclined surface of one side of the slide 161, when the push plate 163 moves upward, it pushes the slide 161 to move horizontally in the horizontal slide 14, so that the inclined surface part on the other side of the slide 161 moves downward, so that the push plate 163 drives the connected pressing assembly 17 downward through the extension block 164 until the bottom of the two pressing assemblies 17 are in contact with the top of the concrete test block, thereby being able to adaptively adjust the height of the two pressing assemblies 17 according to the concave and convex structure of the top of the concrete test block.

[0044] During operation, the push plate 163 is supported by the elastic force of the second spring 165, so that the inclined portion on the top of the push plate 163 pushes the slide 161 to move horizontally, and cooperates with the force of the first spring 162 inside the slide 161 to move the slide 161 to the middle position of the two horizontal slide grooves 14, so that the slide 161 can be moved to the initial position.

[0045] As a further solution of the present invention, the pressing assembly 17 includes a fixed seat 171, which is fixed to the bottom of the two extension blocks 164. Sliding grooves 172 are respectively provided on both sides of the bottom of the fixed seat 171. Slide blocks 176 are slidably connected in the sliding grooves 172. The cross-sections of the sliders 176 and the sliding grooves 172 are both T-shaped. The same sliding rod 177 is fixed inside the two sliding grooves 172.

[0046] During operation, the extension block 164 slides through the vertical sliding groove 15 inside the pressure seat 13, thereby improving the stability of the vertical movement of the fixed seat 171; the slider 176 is limited by the T-shaped sliding groove 172, thereby improving the stability of the horizontal movement of the slider 176 inside the fixed seat 171.

[0047] As a further solution of the present invention, a sliding rod 177 slides through the middle of the slider 176, and a third spring 178 is fixed on both sides of the outer wall of the sliding rod 177. The two ends of the third spring 178 are respectively fixed between the slider 176 and the inner wall of the sliding groove 172. The bottom of the slider 176 is rotatably connected to two hinged rods 174 through a pin shaft. The two sides of the bottom of the fixed seat 171 are rotatably connected to the support rod 173 through a pin shaft. The bottom ends of the two hinged rods 174 in the middle and the bottom ends of the hinged rods 174 and the support rods 173 on both sides are rotatably connected to the pressure head 175 through a pin shaft.

[0048] During operation, when one of the pressing heads 175 is pressed, it squeezes the support rod 173 or the hinge rod 174, and the support rod 173 or the hinge rod 174 rotatably connected to the pressing head 175 deflects and pushes the slider 176 to slide in the sliding groove 172. During the horizontal movement of the slider 176, the adjacent hinge rod 174 is pushed to deflect, and the other one or more pressing heads 175 are simultaneously pushed to adjust their height, so that the height of the multiple pressing heads 175 can be adaptively adjusted according to the inclination, concave and convex or rough surface shape of the concrete test block, so that the contact surface of the pressing head 175 and the concrete test block is stably fitted;

[0049] During operation, the pressure arm 12 drives the pressing assembly 17 and the pushing assembly 16 to move upward through the pressure seat 13, and the multiple pressure heads 175 in the pressing assembly 17 will gradually move away from the top of the concrete test block. During this process, the slider 176 is supported by the elastic force of the third spring 178, so that the slider 176 slides in the sliding groove 172 and pulls the hinge rod 174 to deflect, so that the bottom end of the hinge rod 174 pulls the pressure head 175 back to its original position, so that the multiple pressure heads 175 on the same side maintain the same horizontal position, so as to facilitate the next strength test of the concrete test block.

[0050] Working principle of the present invention:

[0051] When testing the strength of the concrete test block, the motor 6 is controlled to work so that it drives the gear 5 to rotate counterclockwise. The gear 5 drives the concrete test block pushing platform 401 to move to the left through the teeth 404. After the concrete test block pushing platform 401 is moved out of the testing area below the concrete test block pressure testing machine 11, the motor 6 stops working and the concrete test block is placed in the limiting hole 402 in the middle of the concrete test block pushing platform 401. The concrete test block is limited by the limiting hole 402 to improve the stability of the concrete test block detection. When the concrete test block passes through the limiting hole 402 and the strength detection workbench, 1, the motor 6 is controlled to work so as to drive the gear 5 to rotate clockwise, and the gear 5 drives the concrete test block pushing platform 401 to move to the right through the teeth 404. The concrete test block pushing platform 401 pushes the concrete test block to move to the right on the strength testing workbench 1 through the limiting hole 402, and the slide 403 is limited by the T-shaped slide 3 below, thereby improving the stability of the concrete test block pushing platform 401 driving the concrete test block to move horizontally, until the concrete test block is pushed to the testing area below the concrete test block pressure testing machine 11, at which time the motor 6 stops working;

[0052] The concrete test block pressure testing machine 11 is controlled to work so that it drives the pressure arm 12 to move downward, and the pressure arm 12 drives the pressure seat 13 to move downward, and the pressure seat 13 drives the two pressure components 17 at the bottom to move downward, so that the convex part on the concrete test block will first contact one of the pressure components 17. As the pressure component 17 continues to move downward, the fixed seat 171 will drive the push plate 163 to move upward through the two extension blocks 164, so that the push plate 163 can slide inside the vertical slide 15. Since the inclined surface of the top of the push plate 163 is aligned with the slide 1 When the inclined surface on one side of the slide 161 overlaps, the push plate 163 pushes the slide 161 to move horizontally in the horizontal slide groove 14 when it moves upward, so that the inclined surface on the other side of the slide 161 moves the push plate 163 on the other side downward, so that the push plate 163 drives the press assembly 17 connected thereto to move downward through the extension block 164 until the bottoms of the two press assemblies 17 are in contact with the top of the concrete test block. In this process, the heights of the two press assemblies 17 are adjusted adaptively according to the concave-convex structure of the top of the concrete test block to prevent the load from being transmitted only through a local high point.

[0053] Secondly, as the pressing arm 12 drives the pressing seat 13 to continue to move downward, the multiple pressing heads 175 in the pressing assembly 17 squeeze the concrete test block. If there is a tilt, concave-convex or pitted surface defect on the concrete test block corresponding to the area below the pressing assembly 17, one or more of the pressing heads 175 will first be close to the high point of the concrete test block. When one of the pressing heads 175 is pressed, it will squeeze the support rod 173 or the hinge rod 174, and the support rod 173 or the hinge rod 174 rotatably connected to the pressing head 175 will deflect and push the slider 176 in the sliding groove 172 During the horizontal movement of the slider 176, the adjacent hinged rod 174 is pushed to deflect, and one or more other pressure heads 175 are simultaneously pushed to adjust their heights, so that the heights of the multiple pressure heads 175 can be adaptively adjusted according to the inclination, concave and convex or rough surface shape of the concrete test block, so that the pressure heads 175 and the contact surface of the concrete test block are stably fitted together until all the pressure heads 175 in the pressing assembly 17 stop moving and the concrete test block pressure testing machine 11 continues to pressurize the pressure heads 175, thereby automatically testing the strength of the concrete;

[0054] After completing the strength test of the concrete, the concrete test block pressure testing machine 11 is controlled to lift the pressure arm 12, so that the pressure arm 12 drives the pressing assembly 17 and the push assembly 16 to move upward through the pressure seat 13. The multiple pressure heads 175 in the pressing assembly 17 will gradually move away from the top of the concrete test block. In this process, the slider 176 is supported by the elastic force of the third spring 178, so that the slider 176 slides in the sliding groove 172 and pulls the hinge rod 174 to deflect, so that the hinge rod 174 The bottom end of the pusher 175 is pulled back to its original position, so that the multiple pushers 175 on the same side maintain the same horizontal position. Secondly, the push plate 163 is supported by the elastic force of the second spring 165, so that the inclined portion of the top of the push plate 163 pushes the slide 161 to move horizontally, and the force of the first spring 162 inside the slide 161 is combined with the force of the first spring 162 inside the slide 161 to move the slide 161 to the middle position of the two horizontal slide grooves 14, so that the slide 161 can be moved to the initial position, so as to facilitate the next inspection of the concrete test block.

[0055] After completing the strength test of the current concrete test block, the motor 6 is controlled to work and drive the gear 5 to rotate clockwise. The gear 5 drives the concrete test block pushing platform 401 to move to the right through the teeth 404, so that the concrete test block pushing platform 401 pushes the concrete test block to the right through the limit hole 402. When the limit hole 402 in the concrete test block pushing platform 401 overlaps with the position of the blanking hole 8 on the strength testing workbench 1, the concrete test block falls into the receiving box 903 in the receiving assembly 9 through the blanking hole 8, so that the concrete test block can be removed from the strength testing workbench 1 without human assistance for the handling operation. Secondly, the motor 6 drives the gear 5 to rotate counterclockwise, and the gear 5 drives the pushing platform 401 to move to the left through the teeth 404, so that the limit hole 402 in the pushing platform 401 is located on the left side of the strength testing workbench 1, so as to facilitate the discharge test again;

[0056] When the concrete test block falls into the receiving box 903, the highest point of the bottom of the receiving box 903 is under pressure, which will squeeze the hydraulic telescopic rod 902 and the two supporting springs 904 below. The hydraulic telescopic rod 902 can play a buffering role in connecting the material box 903, weakening the force generated by the concrete test block connecting the material box 903, and cooperating with the elastic force of the supporting springs 904 to support the material box 903, which can buffer and damp the material box 903 and prevent the material box 903 from shaking too much and bouncing the concrete test block. Secondly, the concrete test block slides down along the inclined surface of the receiving box 903, so as to facilitate the centralized collection of the tested concrete test blocks.

Claims

1. A concrete strength testing device for construction, comprising a strength testing workbench (1), characterized in that: Support legs (2) are fixed at the four corners of the bottom of the strength testing workbench (1), slideways (3) are respectively provided on the front and rear sides of the strength testing workbench (1), a concrete test block transfer assembly (4) is overlapped on the strength testing workbench (1), the bottom of the concrete test block transfer assembly (4) slides in the two slideways (3), a gear (5) is provided in front of the concrete test block transfer assembly (4), the bottom of the gear (5) is fixedly connected to a motor (6), the bottom of the motor (6) is fixedly connected to a support seat (7), the support seat (7) is fixed to the bottom of the strength testing workbench (1), a drop hole (8) is provided on one side of the strength testing workbench (1), the drop hole (8) is located between the two slideways (3), the drop hole (8) is located between the two slideways (3), and the drop hole (8) is located between the two slideways (3). A material receiving assembly (9) is provided below the hole (8), one side of the bottom of the material receiving assembly (9) is fixed inside the support seat (7), a frame (10) is fixedly connected to the strength detection workbench (1), a concrete test block pressure testing machine (11) is installed in the frame (10), a pressing arm (12) is provided at the bottom of the concrete test block pressure testing machine (11), the bottom of the pressing arm (12) is fixedly connected to a pressure seat (13), horizontal slide grooves (14) are respectively provided on both sides of the interior of the pressure seat (13), a vertical slide groove (15) is provided on one side of the inner wall of the horizontal slide groove (14), a push assembly (16) is slidably connected in the two horizontal slide grooves (14), the bottom end of the push assembly (16) passes through the vertical slide groove (15) and is fixed with a material pressing assembly (17).

2. A concrete strength detection device for construction according to claim 1, characterized in that: The concrete test block transfer assembly (4) comprises a concrete test block pushing platform (401), a limiting hole (402) is provided in the middle of the concrete test block pushing platform (401), and two slides (403) are fixed to the bottom of the concrete test block pushing platform (401), the slides (403) are slidably connected in the slideway (3), and the cross-sections of the slideway (3) and the slides (403) are both T-shaped.

3. A concrete strength detection device for construction according to claim 2, characterized in that: The front and rear sides of the concrete test block pushing platform (401) are respectively provided with blocking bars, and the middle of the concrete test block pushing platform (401) is respectively provided with raised portions around the corresponding limiting holes (402). The front side of the concrete test block pushing platform (401) is fixed with a plurality of teeth (404), and the teeth (404) are meshed with the gear (5).

4. A concrete strength detection device for construction according to claim 1, characterized in that: The material receiving assembly (9) comprises a support frame (901), one side of the bottom of the support frame (901) is fixed in the support seat (7), the middle part of the support frame (901) is rotatably connected to a hydraulic telescopic rod (902) via a pin shaft, the other end of the hydraulic telescopic rod (902) is rotatably connected to a material receiving box (903) via a pin shaft, two supporting springs (904) are fixedly connected between the highest point of one side of the material receiving box (903) and the support frame (901), the lowest point of the bottom of the material receiving box (903) is rotatably connected to the support frame (901) via a pin shaft, and the highest point of the top of the material receiving box (903) is below the drop hole (8).

5. The concrete strength detection device for construction according to claim 1, characterized in that: The push assembly (16) includes a slide (161) that slides through two transverse slide grooves (14). Two first springs (162) are fixedly connected between the two sides of the interior of the slide (161) and the transverse slide grooves (14), and the two sides of the slide (161) are respectively set as inclined surfaces.

6. A concrete strength detection device for construction according to claim 5, characterized in that: A push plate (163) is slidably connected in the vertical slide groove (15), and the top of the push plate (163) is set as an inclined surface. The inclined surface on one side of the slide (161) overlaps the inclined surface of the top of the push plate (163). Two extension blocks (164) are fixed to the bottom of the push plate (163). The bottom ends of the two extension blocks (164) pass through the vertical slide groove (15) and are fixed to the top of the pressing assembly (17). Two second springs (165) are fixedly connected between the bottom of the push plate (163) and the bottom of the vertical slide groove (15).

7. A concrete strength detection device for construction according to claim 6, characterized in that: The pressing assembly (17) includes a fixed seat (171), which is fixed to the bottom of the two extension blocks (164). Sliding grooves (172) are respectively provided on both sides of the bottom of the fixed seat (171). A slider (176) is slidably connected in the sliding groove (172). The cross-sectional shapes of the slider (176) and the sliding groove (172) are both T-shaped, and the same sliding rod (177) is fixed inside the two sliding grooves (172).

8. A concrete strength detection device for construction according to claim 7, characterized in that: The slide rod (177) slides through the middle of the slider (176), and third springs (178) are fixed on both sides of the outer wall of the slide rod (177). The two ends of the third spring (178) are fixed between the slider (176) and the inner wall of the sliding groove (172). The bottom of the slider (176) is connected to two hinged rods (174) through a pin shaft. The two sides of the bottom of the fixed seat (171) are connected to support rods (173) through a pin shaft. The bottom ends of the two hinged rods (174) in the middle and the bottom ends of the hinged rods (174) and the support rods (173) on both sides are connected to pressure heads (175) through pin shafts.

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