Compressive strength detection device for concrete test block

Abstract

The utility model relates to a compressive strength detection device for a concrete test block. The compressive strength detection device comprises a bottom plate, a lifting seat, two fixed columns, a top plate, an impact weight, a lifting assembly and a lifting seat adjusting assembly, the two opposite angle ends of the upper end face of the bottom plate are each connected with one fixing column, the upper ends of the two fixing columns are connected with the top plate, the two opposite angle ends of the lifting base are slidably connected to the fixing columns, and the lifting base adjusting assembly is arranged between the bottom plate and the top plate and used for lifting adjustment of the lifting base. The lifting assembly is connected to the upper end face of the top plate, and the lower end of the lifting assembly penetrates through the top plate to be connected with the impact weight. The compressive strength detection device for the concrete test block aims to overcome the existing defects, the impact strength of the impact weight can be adjusted, and the application range of equipment is effectively widened.

Description

Technical Field

[0001] The utility model relates to a device for detecting the compressive strength of a concrete test block. Background Art

[0002] Concrete test blocks, also known as cube test blocks, are used to measure the compressive strength of concrete. Concrete test blocks and concrete compressive strength test molds all use cube test molds. Since 20 cm cube test molds and test blocks are too bulky and waste materials, 15 cm cube test molds and test blocks are generally used. Concrete test blocks reflect the construction quality of concrete structures, and the compressive strength of concrete test blocks is a key indicator reflecting the quality of concrete construction in a project.

[0003] The testing equipment in related technologies usually includes a frame and a weight that slides vertically onto the frame. During the testing process, a worker is required to lift the weight upward and drop it in a certain vertical direction. The above steps are repeated to perform a continuous free-fall impact test on the concrete test block. The impact resistance of the concrete test block is judged by the cracks on the concrete test block.

[0004] However, the existing technology has the following problems: the height of the weight on the rack cannot be adjusted, resulting in the weight only being able to fall from a certain height, making it impossible to adjust the impact force of the weight on the concrete test block, and then unable to adjust the detection intensity according to the usage requirements of different concrete test blocks, which will result in a smaller scope of application of the equipment.

[0005] Therefore, in order to solve the above problems, a device for detecting the compressive strength of concrete test blocks is proposed. Utility Model Content

[0006] The purpose of the utility model is to overcome the existing defects and provide a compressive strength detection device for concrete test blocks, which can adjust the impact force of the impact weight block and effectively improve the application range of the equipment.

[0007] The technical solution to achieve the above object is: a device for testing the compressive strength of a concrete test block, comprising a bottom plate, a lifting seat, two fixed columns, a top plate, an impact weight, a lifting assembly, and a lifting seat adjustment assembly;

[0008] The two diagonal ends of the upper end surface of the bottom plate are each connected to a fixing column, the upper ends of the two fixing columns are connected to the top plate, the two diagonal ends of the lifting seat are slidably connected to the fixing columns, and the lifting seat adjustment component is arranged between the bottom plate and the top plate for adjusting the lifting of the lifting seat; the lifting component is connected to the upper end surface of the top plate, and the lower end of the lifting component passes through the top plate and is connected to the impact weight block.

[0009] Preferably, the lifting seat adjustment assembly includes two first screw rods, the upper ends of the two first screw rods are rotatably connected to the two diagonal ends of the top plate, and the lower ends are rotatably connected to the upper end surface of the top plate; the two diagonal ends of the lifting seat are each connected to a first screw rod nut, and are connected to the two first screw rods; the first screw rod is connected to a rotation drive assembly.

[0010] Preferably, the rotation drive assembly includes two worm gears, which are respectively connected to the lower ends of the two first screw rods, and the upper end surface of the base plate is connected to the fixed base. The two ends of the fixed base are each rotatably connected to a worm, and the worm engages with the corresponding worm gear, and the outer end of the worm is connected to a rotating wheel.

[0011] Preferably, the lifting assembly includes a lifting platform and a lifting drive assembly, the lifting platform is arranged on the upper end surface of the top plate, the lower end surface of the lifting platform is connected to a first traction rope, the first traction rope passes through the top plate and is connected to an electromagnet, the electromagnet is magnetically connected to an iron block, and the lower end of the iron block is connected to the impact weight block through a second traction rope; one end of the lifting platform is connected to the lifting drive assembly, and the other end is connected to a guide rod, and the guide rod passes through and is slidably connected to the top plate.

[0012] Preferably, the lifting drive assembly includes a motor, the motor is connected to the top plate, the output end of the motor is connected to a second screw rod, the second screw rod is connected to a second screw rod nut, and the second screw rod nut is connected to one end of the lifting platform.

[0013] Preferably, the electromagnet is connected to an external power source.

[0014] Preferably, the worm gear is located below the lifting seat.

[0015] The beneficial effects of the present utility model are as follows: the compressive strength detection device of the concrete test block is provided with a first screw nut connected to each of the two diagonal ends of the lifting seat, the two first screw nuts are connected to the two first screws, and the lower ends of the two first screws are connected to the worm wheel and the worm; by rotating the rotating wheel to drive the worm to rotate, the worm drives the first screw to rotate through the worm wheel, and the lifting seat can be driven to move up and down, thereby realizing the adjustment of the distance between the lifting seat and the highest position of the impact weight block. Through this operation, the impact force of the impact weight block can be adjusted, thereby effectively improving the application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an axonometric diagram of the compressive strength testing device for concrete test blocks of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is an axonometric diagram of the compressive strength testing device for concrete test blocks according to the present invention from another perspective;

[0019] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0020] In the figure: 1. Base plate; 2. Lifting seat; 3. Fixed column; 4. Top plate; 5. Impact weight; 6. First screw; 7. Worm gear; 8. Fixed base; 9. Worm; 10. Rotating wheel; 11. Lifting platform; 12. First traction rope; 13. Electromagnet; 14. Iron block; 15. Second traction rope; 16. Guide rod; 17. Motor; 18. Second screw. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1-4 As shown, a compressive strength testing device for a concrete test block includes a base plate 1, a lifting seat 2, two fixed columns 3, a top plate 4, an impact weight 5, a lifting assembly and a lifting seat adjustment assembly; the two diagonal ends of the upper end surface of the base plate 1 are each connected to a fixed column 3, the upper ends of the two fixed columns 3 are connected to the top plate 4, the two diagonal ends of the lifting seat 2 are slidably connected to the fixed columns 3, and the lifting seat adjustment assembly is arranged between the base plate 1 and the top plate 4 for lifting and lowering adjustment of the lifting seat 2; the lifting assembly is connected to the upper end surface of the top plate 4, and the lower end of the lifting assembly passes through the top plate 4 and is connected to the impact weight 5.

[0024] Specifically, the lifting seat adjusting assembly comprises two first lead screws 6, upper ends of the two first lead screws 6 are rotatably connected to two opposite corners of the top plate 4, lower ends of the two first lead screws 6 are rotatably connected to the upper end surface of the top plate 4, two opposite corners of the lifting seat 2 are each connected with a first lead screw nut and are connected to the two first lead screws 6, and the first lead screws 6 are connected with a rotating driving assembly. The rotating driving assembly comprises two worm gears 7, the two worm gears 7 are respectively connected to the lower ends of the two first lead screws 6, the upper end surface of the bottom plate 1 is connected with a fixed base 8, the two ends of the fixed base 8 are each rotatably connected with a worm 9, the worm 9 meshes with the corresponding worm gear 7, and the outer end of the worm 9 is connected with a rotating wheel 10. The worm gear 7 is located below the lifting seat 2.

[0025] Specifically, the rotating wheel 10 is rotated to drive the worm 9 to rotate, the worm 9 drives the meshed worm gear 7 to rotate, the worm gear 7 drives the first lead screw 6 to rotate, and then drives the first lead screw nut to move on the first lead screw 6, thereby driving the lifting seat 2 to move up and down, so as to realize the distance adjustment between the lifting seat 2 and the highest position of the impact weight 5, and the impact force of the impact weight 5 can be adjusted through the operation, thereby effectively improving the application range of the device.

[0026] Specifically, the lifting assembly comprises a lifting platform 11 and a lifting driving assembly, the lifting platform 11 is arranged on the upper end surface of the top plate 4, the lower end surface of the lifting platform 11 is connected with a first traction rope 12, the first traction rope 12 penetrates through the top plate 4 and is connected with an electromagnet 13, and the electromagnet 13 is connected with an external power supply. The electromagnet 13 is magnetically connected with an iron block 14, the lower end of the iron block 14 is connected with the impact weight 5 through a second traction rope 15, one end of the lifting platform 11 is connected with the lifting driving assembly, the other end of the lifting platform 11 is connected with a guide rod 16, and the guide rod 16 penetrates through and is slidingly connected to the top plate 4. The lifting driving assembly comprises a motor 17, the motor 17 is connected to the top plate 4, the output end of the motor 17 is connected with a second lead screw 18, a second lead screw nut is connected to the second lead screw 18, and one end of the lifting platform 11 is connected to the second lead screw nut.

[0027] Specifically, after the impact test of the impact weight 5, the impact weight 5 falls on the lifting seat 2, at this time, the motor 17 is rotated to drive the second lead screw 18 to rotate, the second lead screw nut is lowered to drive the lifting platform 11 to descend, the lifting platform 11 is lowered to drive the first traction rope 12 to descend, the electromagnet 13 is lowered to be close to the impact weight 5 on the lifting seat 2, the electromagnet 13 is electrified, the electromagnet 13 adsorbs the iron block 14, then the second lead screw 18 is rotated to drive the second lead screw nut to ascend, the lifting platform 11 and the impact weight 5 are lifted to the highest position, and the manual gravity operation is avoided in the process, thereby saving manpower.

[0028] Specifically, during the test, the block to be tested is placed on the lifting seat 2, and the upper and lower heights of the lifting seat 2 are adjusted by rotating the rotating wheel 10 to a suitable position. At this time, the electromagnet 13 is energized and magnetic, and the magnetism is connected to the iron block 14. The iron block 14 is connected to the impact weight 5 through the second traction rope 15. The motor 17 drives the lifting platform 11 to rise. The lifting platform 11 rises and drives the electromagnet 13 to rise through the first traction rope 12. The electromagnet 13 drives the impact weight 5 to rise to the highest point, and then the power of the electromagnet 13 is turned off, the electromagnet 13 loses its magnetism, and the iron block 14 and the impact weight are 5 falls, and the impact weight 5 falls on the tested block, completing the compressive strength test of the concrete test block; then the motor 17 rotates to drive the second screw rod 18 to rotate, drive the second screw rod nut to descend, drive the lifting platform 11 to descend, and the lifting platform 11 descends to drive the first traction rope 12 to descend, so that the electromagnet 13 descends and approaches the impact weight 5 on the lifting seat 2, and the electromagnet 13 is energized, so that the electromagnet 13 attracts the iron block 14, and then the second screw rod 18 rotates to drive the second screw rod nut to rise, drive the lifting platform 11 and the impact weight 5 to the highest point, and then carry out the next test.

[0029] The compressive strength testing device of the concrete test block is configured by arranging a first screw nut connected to each of the two diagonal ends of the lifting seat 2, and the two first screw nuts are connected to the two first screw rods 6, and the lower ends of the two first screw rods 6 are connected to the worm wheel 7 and the worm 9; by rotating the rotating wheel 10 to drive the worm 9 to rotate, the worm 9 drives the first screw rod 6 to rotate through the worm wheel 7, and the lifting seat 2 can be driven to move up and down, thereby realizing the adjustment of the distance between the lifting seat 2 and the highest position of the impact weight 5. Through this operation, the impact force of the impact weight can be adjusted, thereby effectively improving the applicability of the equipment.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for testing the compressive strength of a concrete test block, characterized in that: It comprises a bottom plate (1), a lifting seat (2), two fixing columns (3), a top plate (4), an impact weight (5), a lifting assembly and a lifting seat adjustment assembly; The two diagonal ends of the upper end surface of the bottom plate (1) are each connected to a fixed column (3), the upper ends of the two fixed columns (3) are connected to the top plate (4), the two diagonal ends of the lifting seat (2) are slidably connected to the fixed columns (3), and the lifting seat adjustment component is arranged between the bottom plate (1) and the top plate (4) for adjusting the lifting of the lifting seat (2); the lifting component is connected to the upper end surface of the top plate (4), and the lower end of the lifting component passes through the top plate (4) and is connected to the impact weight (5).

2. The compressive strength testing device for concrete test blocks according to claim 1, characterized in that: The lifting seat adjustment assembly comprises two first screw rods (6), the upper ends of the two first screw rods (6) are rotatably connected to the two diagonal ends of the top plate (4), and the lower ends are rotatably connected to the upper end surface of the top plate (4); the two diagonal ends of the lifting seat (2) are each connected to a first screw rod nut, and are connected to the two first screw rods (6); the first screw rod (6) is connected to a rotation drive assembly.

3. The compressive strength testing device for concrete test blocks according to claim 2, characterized in that: The rotation drive assembly comprises two worm wheels (7), the two worm wheels (7) are respectively connected to the lower ends of two first screw rods (6), the upper end surface of the bottom plate (1) is connected to a fixed base (8), the two ends of the fixed base (8) are respectively rotatably connected to a worm (9), the worm (9) engages with the corresponding worm wheel (7), and the outer end of the worm (9) is connected to a rotating wheel (10).

4. The compressive strength testing device for concrete test blocks according to claim 1, characterized in that: The lifting assembly comprises a lifting platform (11) and a lifting drive assembly, wherein the lifting platform (11) is arranged on the upper end surface of the top plate (4), the lower end surface of the lifting platform (11) is connected to a first traction rope (12), the first traction rope (12) passes through the top plate (4) and is connected to an electromagnet (13), the electromagnet (13) is magnetically connected to an iron block (14), and the lower end of the iron block (14) is connected to the impact weight (5) through a second traction rope (15); one end of the lifting platform (11) is connected to the lifting drive assembly, and the other end is connected to a guide rod (16), and the guide rod (16) passes through and is slidably connected to the top plate (4).

5. The compressive strength testing device for concrete test blocks according to claim 4, characterized in that: The lifting drive assembly includes a motor (17), the motor (17) is connected to the top plate (4), the output end of the motor (17) is connected to a second screw rod (18), the second screw rod (18) is connected to a second screw rod nut, and the second screw rod nut is connected to one end of the lifting platform (11).

6. The compressive strength testing device for concrete test blocks according to claim 4, characterized in that: The electromagnet (13) is connected to an external power source.

7. The compressive strength testing device for concrete test blocks according to claim 3, characterized in that: The worm gear (7) is located below the lifting seat (2).

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