Compression resistance detection device for constructional engineering material

Abstract

The invention discloses a compression resistance detection device for a constructional engineering material. The device comprises a device shell, a protective door is arranged at the front end of the device shell, one side of the protective door is movably hinged to the device shell, and an observation window is installed on the front end face of the protective door; through cooperation of a lifting platform and a spring with a second guide rod and a first square ring, automatic positioning and clamping are facilitated during material compression resistance detection, vibration offset is reduced, the detection accuracy is improved, the function of rapid clamping and positioning is achieved, and through cooperation of a protective net and a residue blocking frame with a push plate and an electric push cylinder, the detection efficiency is improved. The materials are convenient to crack and splash during detection to prevent the materials from outburst and automatically clean after detection is completed, so that the safety and the efficiency are improved, and the functions of automatic cleaning and omnibearing protection are realized; finally, the problems that positioning is not easy during compression resistance detection of engineering materials, vibration deviation is generated during detection, protection is not comprehensive, safety is poor, and cleaning is not easy are solved.

Description

Technical Field

[0001] The invention relates to the technical field of compression resistance detection of construction engineering materials, and in particular to a compression resistance detection device for construction engineering materials. Background Art

[0002] It is common for existing construction material testing devices to manually position the materials on the device. Due to the inaccuracy of manual positioning, the detected data will be biased. In addition, there is no fixed structure during extrusion testing, which causes the material vibration and deviation during the extrusion process, resulting in deviations in the test data and poor accuracy of the test values. In addition, when the material breaks during the extrusion process, small splashes are generated, which can easily cause harm to the test personnel, and it is not easy to clean up the broken materials after the test is completed, ultimately resulting in low detection efficiency and poor safety. Therefore, the above technical problems need to be solved. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a compression testing device for construction engineering materials.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a construction material compression detection device, comprising a device shell, a protective door is provided at the front end of the device shell, one side of the protective door is movably hinged to the device shell, and an observation window is installed on the front end surface of the protective door, a handle is provided on the other side of the observation window, the handle is fixedly connected to the protective door, and a control console is placed on the other side of the device shell; a drive box is fixedly connected to the top surface of the device shell, a first motor is provided on the other side of the front end of the drive box, the first motor is fixedly connected to the top surface of the device shell through a fixing block, and a first mounting hole is opened at the rear end of the first motor longitudinally penetrating the drive box, a worm is rotatably connected between the two first mounting holes, and the front end of the worm is connected to the output shaft of the first motor through a coupling.

[0005] Preferably, a second mounting hole is opened in the middle of the top surface of the device shell, a screw is vertically arranged in the second mounting hole, the upper end of the screw is placed inside the drive box, and the lower end of the screw is placed inside the device shell, and the first guide rods are vertically fixed to the four corners of the top surface inside the device shell.

[0006] Preferably, the upper end of the screw is threadedly connected to a worm wheel, and the upper and lower ends of the worm wheel are rotatably connected to a bearing turntable, the upper end of the bearing turntable is fixedly connected to the top surface of the drive box, and the lower end of the bearing turntable is fixedly connected to the top surface of the device casing, and the worm wheel is placed on one side of the worm and meshes with the worm for transmission.

[0007] Preferably, the lower end of the screw is rotatably connected to a first extrusion detection platform, the four corners of the first extrusion detection platform are sleeved on a first guide rod, and rectangular slots are opened around the middle of the top surface of the first extrusion detection platform, and protective nets are provided in the four rectangular slots, and a first baffle is fixedly connected to the top surface of the protective net, and the first baffle abuts against the top surface of the first extrusion detection platform.

[0008] Preferably, a base is fixedly connected to the inner bottom surface of the device shell, the four corners of the top surface of the base are fixedly connected to the bottom surfaces of four first guide rods, and a first placement groove is opened on the inner side of the top surface of the base, a lifting platform is placed in the first placement groove, and third mounting holes are vertically opened on both sides of the middle of the first placement groove, the lower ends of the screw rods are rotatably connected in the two third mounting holes, the two sides of the lifting platform are threadedly connected to the screw rods, a second extrusion detection platform is provided between the two screw rods, the second extrusion detection platform is placed on the inner side of the lifting platform, and the second extrusion detection platform is fixed to the top surface of the base.

[0009] Preferably, the top surface of the lifting platform is abutted against a second baffle, a fixing plate is provided on the upper end of the second baffle, the four corners of the top surface of the fixing plate are fixedly connected to the first guide rod, and fourth mounting holes are opened on both sides of the top surface of the fixing plate, the upper ends of the screw rods are rotatably connected in the fourth mounting holes, second motors are provided at the upper ends of the two screw rods, the second motors are fixedly connected to the top surface of the fixing plate, and the output shaft of the second motor is connected to the upper end of the screw rod through a coupling, and second guide rods are fixedly connected to the four corners of the top surface of the second baffle, the upper ends of the four second guide rods pass through the fixing plate and are fixedly connected to the first square ring, springs are vertically provided at the four corners of the lower end of the first square ring, the upper ends of the springs abut against the bottom surface of the fixing plate, and the springs are sleeved on the second guide rods.

[0010] Preferably, the upper end of the second extrusion detection platform is placed on the top surface of the fixed plate, and the upper end of the second extrusion detection platform is placed on the inner side of the first square ring, a second square ring is provided on the outer side of the first square ring, the second square ring is fixedly connected to the top surface of the fixed plate, and a residue blocking frame is fixedly connected to the top surface of the second square ring, the front end bottom surface of the residue blocking frame is fixedly connected to the top surface of the fixed plate, and a push plate is provided at the rear end of the residue blocking frame, the push plate abuts against the top surface of the second square ring, and an electric push cylinder is provided at the rear end of the push plate, the electric push cylinder is fixedly connected to the rear end surface of the device housing, and the output shaft of the electric push cylinder passes through the device housing and is fixed to the push plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates automatic positioning and clamping during material compression testing to reduce vibration displacement through the cooperation of the lifting platform and the spring with the second guide rod and the first square ring, thereby improving the accuracy of detection and realizing the function of rapid clamping and positioning, and then through the cooperation of the protective net and the residue blocking frame with the push plate and the electric push cylinder, it is convenient to prevent the material from bursting and splashing during detection and to automatically clean the material after the detection is completed, thereby improving safety and efficiency, thereby realizing the functions of automatic cleaning and all-round protection, and finally solving the problems of difficult positioning during engineering material compression testing, vibration displacement during detection, incomplete protection, poor safety and difficulty in cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the rear end three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the internal three-dimensional structure of the housing of the device of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the inner part of the housing of the device of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the lower end of the inner shell of the device of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the material placement table of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the lifting and positioning assembly of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the residue blocking frame of the present invention; Fig. 9 It is a schematic diagram of the full cutaway three-dimensional structure of the present invention; Fig.10 It is a schematic diagram of a three-dimensional structure of a side section of the present invention; Fig.11 For the present invention Fig. 9 A schematic diagram of the enlarged structure of the middle A part; Fig.12 For the present invention Fig. 9 A schematic diagram of the structure of the middle B part; Fig.13 For the present invention Fig.10 Schematic diagram of the enlarged structure of the C part in the middle.

[0013] Serial numbers in the figure: 1. device housing; 2. protective door; 3. control console; 4. drive box; 5. first motor; 6. worm; 7. screw; 8. first guide rod; 9. bearing turntable; 10. worm wheel; 11. first extrusion detection platform; 12. protective net; 13. first baffle; 14. base; 15. second extrusion detection platform; 16. lifting platform; 17. screw; 18. second motor; 19. second baffle; 20. second guide rod; 21. first square ring; 22. spring; 23. second square ring; 24. residue blocking frame; 25. fixing plate; 26. push plate; 27. electric push cylinder. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Example 1: See Figure 1-13A construction material compression test device in the present invention comprises a device housing 1, through which various components can be easily installed and carried; a protective door 2 is provided at the front end of the device housing 1, through which the broken material can be prevented from flying out during the extrusion test; one side of the protective door 2 is movably hinged with the device housing 1, and the protective door 2 can be opened and closed by rotating the connection; and an observation window is installed on the front end of the protective door 2, through which the state of the material during the extrusion test can be easily observed; a handle is provided on the other side of the observation window, through which the protective door 2 can be easily pulled; the handle is fixedly connected to the protective door 2, and the handle is easily fixed by the protective door 2; and A control console 3 is placed on the other side of the device housing 1, through which the movement of each component can be controlled and the detection data can be recorded; a drive box 4 is fixedly connected to the top surface of the device housing 1, through which the drive component can be installed; a first motor 5 is arranged on the other side of the front end of the drive box 4, through which the first motor 5 can provide power for the rotation of the worm 6; the first motor 5 is fixedly connected to the top surface of the device housing 1 through a fixing block, through which the device housing 1 can be used to fix the first motor 5; and the rear end of the first motor 5 longitudinally penetrates the drive box 4 to form a first mounting hole, through which the worm 6 can be installed; a worm 6 is rotatably connected between the two first mounting holes, through which the worm 6 can be used to The worm 10 is driven to rotate; the front end of the worm 6 is connected to the output shaft of the first motor 5 through a coupling, and the worm 6 is driven to rotate through the coupling; a second mounting hole is opened in the middle of the top surface of the device housing 1, and the screw 7 is conveniently positioned through the second mounting hole; a screw 7 is vertically arranged in the second mounting hole, and the first extrusion detection platform 11 is conveniently driven to move up and down through the screw 7; the upper end of the screw 7 is placed inside the drive box 4, and the screw 7 is conveniently positioned through the drive box 4; and the lower end of the screw 7 is placed inside the device housing 1, and the internal space of the device housing 1 facilitates the lifting and lowering of the screw 7; and the first guide rods 8 are vertically fixedly connected to the four corners of the top surface of the device housing 1, and the first guide rods 8 are conveniently fixed to the top surface of the device housing 1 through the first guide rods The rod 8 is convenient for limiting the freedom of the first extrusion detection platform 11; the upper end of the screw 7 is threadedly connected to a worm wheel 10, which can drive the screw 7 to move up and down when the worm wheel 10 rotates through the threaded connection; the upper and lower ends of the worm wheel 10 are rotatably connected to a bearing turntable 9, which can support the rotation of the worm wheel 10 through the bearing turntable 9; the upper end bearing turntable 9 is fixedly connected to the top surface of the drive box 4, and the bearing turntable 9 can be installed through the drive box 4; the lower end bearing turntable 9 is fixedly connected to the top surface of the device housing 1, and the bearing turntable 9 can be installed through the device housing 1; and the worm wheel 10 is placed on one side of the worm 6 and meshes with the worm 6 for transmission, and the worm 6 drives the worm wheel 10 to rotate through the meshing transmission.

[0016] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figure 5 , Figure 6 , Figure 7As shown in the figure, the lower end of the screw rod 7 is rotatably connected to the first extrusion detection platform 11, and the first extrusion detection platform 11 is used to transmit the position information back to the control console 3 during detection; the four corners of the first extrusion detection platform 11 are sleeved on the first guide rod 8, and the first guide rod 8 is used to limit the freedom of the first extrusion detection platform 11; and rectangular notches are opened around the middle of the top surface of the first extrusion detection platform 11, and the rectangular notches facilitate the up and down movement of the protective net 12; protective nets 12 are arranged in the four rectangular notches, and the protective nets 12 are used to prevent splashing and damaging electrical components when the material collapses; a first baffle plate 13 is fixedly connected to the top surface of the protective net 12, and the first baffle plate 13 facilitates limiting the position of the protective net 12; the first baffle plate 13 abuts against the first extrusion detection platform 11 top surface, through the first extrusion detection platform 11, it is convenient to support the protective net 12 to move up and down when extruding materials; the inner bottom surface of the supporting device shell 1 is fixedly connected to a base 14, and the lifting component is convenient to install through the base 14; the four corners of the top surface of the base 14 are fixedly connected to the bottom surfaces of the four first guide rods 8, and the first guide rods 8 are convenient to position the base 14; and a first placement groove is opened on the inner side of the top surface of the base 14, and the lifting platform 16 is convenient to install through the first placement groove; the lifting platform 16 is placed in the first placement groove, and the lifting and lowering of the lifting platform 16 facilitates the lifting and lowering of the first square ring 21; and third mounting holes are vertically opened on both sides of the middle of the first placement groove, and the screw rod 17 is convenient to install through the third mounting hole; the lower ends of the screw rod 17 are rotatably connected in the two third mounting holes, and the screw rod 17 is rotated through the screw rod 17 It is convenient to drive the threaded lifting platform 16 to move up and down; the two sides of the lifting platform 16 are threadedly connected to the screw rod 17, and the threaded connection is convenient for transmission; a second extrusion detection platform 15 is arranged between the two screw rods 17, and the weight value and pressure value during the detection are conveniently transmitted back to the control console 3 through the second extrusion detection platform 15; the second extrusion detection platform 15 is placed on the inner side of the lifting platform 16, and the position of the second extrusion detection platform 15 is conveniently located through the lifting platform 16; and the second extrusion detection platform 15 is fixedly connected to the top surface of the base 14, and the second extrusion detection platform 15 is conveniently installed through the base 14; the top surface of the lifting platform 16 is abutted with a second baffle 19, and the lifting of the second baffle 19 facilitates the second guide rod 20 to move up and down; a fixing plate 25 is provided at the upper end of the second baffle 19 , it is convenient to carry the lifting assembly through the fixing plate 25; the four corners of the top surface of the fixing plate 25 are fixedly connected to the first guide rod 8, and the fixing plate 25 is convenient to install through the first guide rod 8; and fourth mounting holes are opened on both sides of the top surface of the fixing plate 25, and the fourth mounting holes are convenient to fix and support the screw rod 17; the upper end of the screw rod 17 is rotatably connected in the fourth mounting hole, and the rotation connection facilitates the rotation of the screw rod 17; the upper ends of the two screw rods 17 are provided with a second motor 18, and the second motor 18 is convenient to provide power for the rotation of the screw rod 17; the second motor 18 is fixedly connected to the top surface of the fixing plate 25, and the second motor 18 is convenient to install and carry through the fixing plate 25; and the output shaft of the second motor 18 is connected to the upper end of the screw rod 17 through a coupling, and the output shaft drives the screw rod 17 to rotate through the coupling;The second baffle 19 has four corners on the top surface of the second guide rod 20 fixedly connected, and the lifting of the second guide rod 20 facilitates the lifting of the first square ring 21; the upper ends of the four second guide rods 20 penetrate the fixed plate 25 and are fixedly connected with the first square ring 21, and the first square ring 21 facilitates the rapid and automatic positioning of the material; the four corners of the lower end of the first square ring 21 are vertically provided with springs 22, and the first square ring 21 is easily reset by the springs 22; the upper end of the spring 22 abuts against the bottom surface of the fixed plate 25, and the fixed plate 25 facilitates the support of the spring 22; and the spring 22 is sleeved on the second guide rod 20, and the spring 22 is easily installed by the second guide rod 20.;

[0017] Embodiment 3: The technical solution is basically the same as that of Embodiment 1, except that Figure 8 , Fig. 9 , Fig.10 As shown, the upper end of the second extrusion detection platform 15 is placed on the top surface of the fixed plate 25, and the second extrusion detection platform 15 is conveniently positioned through the fixed plate 25; and the upper end of the second extrusion detection platform 15 is placed on the inner side of the first square ring 21, and the second square ring 23 is conveniently positioned and installed through the first square ring 21; a second square ring 23 is arranged on the outer side of the first square ring 21, and the residue blocking frame 24 is conveniently installed through the second square ring 23; the second square ring 23 is fixedly connected to the top surface of the fixed plate 25, and the second square ring 23 is conveniently carried and fixed through the fixed plate 25; and the residue blocking frame 24 is fixedly connected to the top surface of the second square ring 23, and the residue blocking frame 24 is conveniently used to block the residue on the second extrusion detection platform 1 when the material collapses. 5; the bottom surface of the front end of the residue blocking frame 24 is fixedly connected to the top surface of the fixing plate 25, and the fixing plate 25 is used to fix the residue blocking frame 24; and a push plate 26 is provided at the rear end of the residue blocking frame 24, and the push plate 26 is used to push the broken material out of the device housing 1; the push plate 26 abuts against the top surface of the second square ring 23, and the second square ring 23 is used to position the push plate 26; and an electric push cylinder 27 is provided at the rear end of the push plate 26, and the electric push cylinder 27 is used to provide thrust for the push plate 26; the electric push cylinder 27 is fixedly connected to the rear end surface of the device housing 1, and the electric push cylinder 27 is convenient to install through the device housing 1; and the output shaft of the electric push cylinder 27 passes through the device housing 1 and is fixed to the push plate 26, and the output shaft is convenient to drive the push plate 26 to move forward and backward.

[0018] Working principle: In this embodiment, the present invention also proposes a method for using a construction material compression testing device, comprising the following steps: Step 1: First, connect all electrical equipment with wires and power on; first, close the protective door 2 through the handle, and then control the first motor 5 to rotate forward through the control console 3, and drive the worm 6 to rotate through the output shaft. As the worm 6 rotates, the worm wheel 10 rotates, and the threaded screw 7 moves upward through the rotation of the worm wheel 10, thereby driving the first extrusion detection platform 11 connected to the screw 7 to rise. When the first extrusion detection platform 11 rises to the limit position, the protective net 12 rises and the first motor 5 stops rotating; Step 2: Control the second motor 18 to rotate forward through the control console 3, and drive the screw rod 17 to rotate through the output shaft. As the screw rod 17 rotates, the lifting platform 16 connected to the lower end thereof by thread is lifted. As the lifting platform 16 rises, the second baffle plate 19 abutted against the top surface thereof is pushed to move upward, so that the second guide rod 20 on the second baffle plate 19 moves upward to lift the first square ring 21 on the second guide rod 20 to frame the second extrusion detection platform 15, and then control the second motor 18 to stop rotating; Step three, open the protective door 2 through the handle, take out the material to be tested and put it on the second extrusion detection platform 15 inside the first square ring 21 to position and clamp it, and at the same time transmit the weight information back to the control console 3 through the second extrusion detection platform 15, then close the protective door 2, and then control the first motor 5 to reverse through the control console 3, drive the first extrusion detection platform 11 connected to the screw 7 to descend, when the first extrusion detection platform 11 is against the material, transmit the position information back to the control console 3 through the first extrusion detection platform 11, and then continue to reverse the first motor 5 to continue to extrude the material downward, at this time, the protective net 12 is synchronously lowered, and it will no longer descend when the protective net 12 touches the bottom, and the first extrusion detection platform 11 continues to descend, and the material is observed through the observation window of the protective door 2. When the material cannot withstand the pressure and cracks, the second extrusion detection platform 15 transmits the pressure value back to the control console 3, so as to stop the extrusion and complete the detection; Step 4. After the inspection is completed, the first motor 5 is controlled to rotate forward through the control console 3 to lift the first extrusion inspection platform 11 and drive the protective net 12 to rise together and return to the extreme initial position. The second motor 18 is controlled to reverse through the control console 3 to drive the screw 17 to rotate through the output shaft, so that the lifting platform 16 descends back to the initial position. As the lifting platform 16 descends, the spring 22 loses its extrusion recovery elasticity, thereby pushing the second baffle plate 19 to descend so that the first square ring 21 returns to the initial position and is aligned with the second square ring 23. Then the protective door 2 is opened, the waste collection basket is placed at the exit of the residue blocking frame 24, and the electric push cylinder 27 is started to drive the push plate 26 to push the crushed material out of the second extrusion inspection platform 15. Then the push plate 26 is reset to close the protective door 2, and finally all electrical equipment is powered off.

[0019] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction material compression testing device, comprising a device housing (1), characterized in that: A protective door (2) is provided at the front end of the device housing (1), one side of the protective door (2) is movably hinged to the device housing (1), and an observation window is installed on the front end surface of the protective door (2), a handle is provided on the other side of the observation window, and the handle is fixedly connected to the protective door (2), and a control console (3) is placed on the other side of the device housing (1); A drive box (4) is fixedly connected to the top surface of the device housing (1); a first motor (5) is provided on the other side of the front end of the drive box (4); the first motor (5) is fixedly connected to the top surface of the device housing (1) via a fixing block; a first mounting hole is formed at the rear end of the first motor (5) and longitudinally penetrates the drive box (4); a worm (6) is rotatably connected between the two first mounting holes; and a front end of the worm (6) is connected to an output shaft of the first motor (5) via a coupling.

2. A construction material compression testing device according to claim 1, characterized in that: A second mounting hole is formed in the middle of the top surface of the device housing (1), a screw rod (7) is vertically arranged in the second mounting hole, the upper end of the screw rod (7) is placed inside the drive box (4), and the lower end of the screw rod (7) is placed inside the device housing (1), and first guide rods (8) are vertically fixed to the four corners of the top surface of the device housing (1).

3. A construction material compression testing device according to claim 1, characterized in that: The upper end of the screw rod (7) is threadedly connected to a worm wheel (10), and the upper and lower ends of the worm wheel (10) are rotatably connected to a bearing turntable (9), the upper end of the bearing turntable (9) is fixedly connected to the top surface of the drive box (4), and the lower end of the bearing turntable (9) is fixedly connected to the top surface of the device housing (1), and the worm wheel (10) is placed on one side of the worm (6) and meshes with the worm (6) for transmission.

4. A construction material compression testing device according to claim 2, characterized in that: The lower end of the screw rod (7) is rotatably connected to a first extrusion detection platform (11), the four corners of the first extrusion detection platform (11) are sleeved on the first guide rod (8), and rectangular notches are opened around the middle of the top surface of the first extrusion detection platform (11), and protective nets (12) are provided in the four rectangular notches. The top surface of the protective net (12) is fixedly connected to a first baffle (13), and the first baffle (13) abuts against the top surface of the first extrusion detection platform (11).

5. A construction material compression testing device according to claim 1, characterized in that: A base (14) is fixedly connected to the inner bottom surface of the device housing (1), and the four corners of the top surface of the base (14) are fixedly connected to the bottom surfaces of four first guide rods (8), and a first placement groove is opened on the inner side of the top surface of the base (14), and a lifting platform (16) is placed in the first placement groove, and third mounting holes are vertically opened on both sides of the middle of the first placement groove, and the lower ends of the screw rods (17) are rotatably connected in the two third mounting holes, and the two sides of the lifting platform (16) are threadedly connected to the screw rods (17), and a second extrusion detection platform (15) is provided between the two screw rods (17), and the second extrusion detection platform (15) is placed on the inner side of the lifting platform (16), and the second extrusion detection platform (15) is fixedly connected to the top surface of the base (14).

6. A construction material compression testing device according to claim 5, characterized in that: The top surface of the lifting platform (16) is in contact with a second baffle (19), and a fixing plate (25) is provided at the upper end of the second baffle (19). The four corners of the top surface of the fixing plate (25) are fixedly connected to the first guide rod (8), and fourth mounting holes are provided on both sides of the top surface of the fixing plate (25). The upper ends of the screw rods (17) are rotatably connected in the fourth mounting holes. The upper ends of the two screw rods (17) are provided with second motors (18), and the second motors (18) are fixedly connected to the top surface of the fixing plate (25). The output shaft of the second motor (18) is connected to the upper end of the screw rod (17) through a coupling, and second guide rods (20) are fixedly connected to the four corners of the top surface of the second baffle (19), and the upper ends of the four second guide rods (20) penetrate the fixed plate (25) and are fixedly connected to the first square ring (21), and springs (22) are vertically provided at the four corners of the lower end of the first square ring (21), and the upper end of the spring (22) abuts against the bottom surface of the fixed plate (25), and the spring (22) is sleeved on the second guide rod (20).

7. A construction material compression testing device according to claim 5, characterized in that: The upper end of the second extrusion detection platform (15) is placed on the top surface of the fixed plate (25), and the upper end of the second extrusion detection platform (15) is placed on the inner side of the first square ring (21). A second square ring (23) is provided on the outer side of the first square ring (21). The second square ring (23) is fixedly connected to the top surface of the fixed plate (25), and a residue blocking frame (24) is fixedly connected to the top surface of the second square ring (23). The bottom surface of the front end of the residue blocking frame (24) is fixedly connected to the top surface of the fixed plate (25), and a push plate (26) is provided at the rear end of the residue blocking frame (24). The push plate (26) abuts against the top surface of the second square ring (23), and an electric push cylinder (27) is provided at the rear end of the push plate (26). The electric push cylinder (27) is fixedly connected to the rear end surface of the device housing (1), and an output shaft of the electric push cylinder (27) passes through the device housing (1) and is fixedly connected to the push plate (26).

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