Concrete test block pressure detection device for construction project quality detection

Abstract

The invention relates to the technical field of pressure detection, in particular to a concrete test block pressure detection device for construction project quality detection, which comprises a control box, a shoveling and scraping mechanism, a sweeping mechanism, a blowing mechanism and a switching mechanism. The connecting box slides to drive the two scraper knives to shovel and scrape the bottom of the press and the upper surface of the workbench, so that condensed chippings are forcefully removed and scraped, automatic cleaning can be achieved, the working safety is guaranteed, the motor drives the connecting teeth to rotate so as to drive the rotating teeth to rotate, and through the meshing effect between the rotating teeth and the gear, the working efficiency is improved. The upper steel brush wheel and the lower steel brush wheel are driven to rotate reversely, the surface scraped by the scraper knife can be swept again, the cleaning effect is further improved, the two blowing mechanisms are driven to work through sliding of the motor, the cleaned part can be subjected to multiple times of blowing cleaning, and the cleaning effect is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pressure detection, and particularly relates to a concrete test block pressure detection device for construction engineering quality detection. BACKGROUND

[0002] The concrete test block pressure detection, namely the concrete compressive strength detection, is mainly determined by cubic test pieces and prism test pieces, and the main purpose is to evaluate whether the quality of the concrete meets the design requirements, to ensure the structural safety of the building, and to optimize the concrete mix ratio, so as to ensure the safety and reliability of the construction engineering. Through the pressure test on the concrete test block, the strength and performance of the concrete can be known, and reliable basis can be provided for the construction and design of the construction engineering.

[0003] A patent document with the publication number CN202411237940.2 in the prior art provides a waste concrete mechanical property testing device and testing method, which comprises a base, a guide column, a movable plate, a turntable, a drilling mechanism, a placing mechanism and a pulling-out mechanism. The base top surface is fixed with a clamp to clamp the waste concrete block. The guide column is vertically fixed on the base top surface. The movable plate is slidingly connected to the guide column. The turntable is rotationally connected to the bottom surface of the movable plate. The drilling mechanism drills holes in the waste concrete block. The placing mechanism places the expansion bolts in the drilled holes. The pulling-out mechanism pulls out the expansion bolts. The axes of the drilling mechanism, the placing mechanism and the pulling-out mechanism are arranged in an isosceles triangle on the bottom surface of the turntable. The present application establishes the relationship between the strength of the waste concrete and the torque, thrust and drilling speed of the drill bit, and the relationship between the peak pull-out force in the expansion bolt pulling-out process and the strength of the waste concrete. The waste concrete strength is comprehensively evaluated by the drilling method and the pulling-out method, which is more accurate than the existing technology.

[0004] The above-mentioned existing patent still has the following problems: the existing technology mainly aims at fast and complete sampling of the concrete test block, and then performs corresponding detection, but the method for testing the compressive strength of the concrete is to place the test block on the test table, and then press it to break by using the press, so as to obtain the compressive performance of the concrete test block. However, since a large pressure is used for pressing, the concrete debris generated in the process will be solidified on the surface of the test table and the press, and needs to be cleaned. In the existing working process, the surface debris is usually cleaned by the worker holding a broom or the like after the pressure test is completed. However, the debris solidified on the surface of the equipment is difficult to completely remove, and a lot of effort needs to be spent for cleaning. The overall work is difficult, the efficiency is low, and there is a certain safety hazard. SUMMARY

[0005] The present application relates to the technical field of pressure detection, and particularly relates to a concrete test block pressure detection device for construction engineering quality detection.

[0006] In order to achieve the above object, the present application adopts the following technical scheme: a concrete test block pressure detection device for construction engineering quality detection, comprising a control box, one side of the control box is fixedly connected with a test table, four hydraulic columns are uniformly fixedly connected to the four corners of the top of the test table, a press is slidably connected to the top of the test table through the hydraulic columns, a connecting box is slidably connected in the control box, and the connecting box is penetratingly arranged in the control box, further comprising: A scraping mechanism is slidably connected in the connecting box, and the scraping mechanism is used for scraping and cleaning the surface of the opposite side of the test table and the press; Two sweeping mechanisms are symmetrically rotatably connected to the upper and lower sides of the connecting box, and the sweeping mechanism is used for sweeping the part treated by the scraping mechanism again; Two blowing mechanisms are respectively arranged on the two sides in the connecting box, and the blowing mechanism is used for blowing and cleaning the surface of the opposite side of the test table and the press for multiple times; And a conversion mechanism is arranged in the connecting box, and the conversion mechanism is used to drive the two blowing mechanisms to work respectively.

[0007] In the concrete test block pressure detection device for construction engineering quality detection, the scraping mechanism comprises a connecting plate, two scrapers and two wheel discs, the connecting plate is slidably connected in the connecting box, and the upper and lower sides of the connecting plate are penetratingly arranged in the upper and lower sides of the connecting box, one end of the connecting plate penetrating to the outside of the connecting box is fixedly connected with the scraper, the upper and lower scrapers are slidably connected with the bottom of the press and the top of the test table respectively, the two wheel discs are symmetrically rotatably connected in the connecting box, the top rod is hinged on one side of the surface of the wheel disc, and the other end of the two top rods is hinged with one side of the surface of the connecting plate.

[0008] In the concrete test block pressure detection device for construction engineering quality detection, the sweeping mechanism comprises two steel brush wheels and a motor, the two steel brush wheels are symmetrically rotatably connected to the upper and lower sides of the connecting box, and the two steel brush wheels are penetratingly arranged on the upper and lower sides of the connecting box away from each other, the motor is arranged in the connecting box, the output end of the motor is fixedly connected with a guide tooth through a shaft coupling, the guide tooth is meshed with a connecting tooth on one side, the connecting tooth is fixedly connected with a rotating tooth on one side, the two ends of the steel brush wheel are symmetrically fixedly connected with two connecting wheels, the connecting wheel at one end of the upper steel brush wheel is transmissionally connected with the rotating tooth through a belt, the bottom of the rotating tooth is meshed with a gear, the surface of the gear is transmissionally connected with the connecting wheel at one end of the lower steel brush wheel through a belt, the connecting wheel at the other end of the steel brush wheel is transmissionally connected with a rotating wheel through a belt, and the rotating wheel is fixedly connected with the wheel disc.

[0009] In the concrete test block pressure detection device for construction engineering quality detection, the blowing mechanism includes air bags, an extrusion plate and support rods, two air bags are arranged on the two sides of the connecting box, the extrusion plate is fixedly connected to one side of the air bag, one end of the support rod is hingedly connected to the side of the extrusion plate away from the air bag, the other end of one of the support rods is hingedly connected to a toothed disc, the end of the other support rod away from the extrusion plate is hingedly connected to the connecting tooth, the connecting box is symmetrically fixedly connected with blowing boxes at the two ends, the side of the air bag away from the extrusion plate is communicated with a conduit, and the other end of the conduit is communicated with the blowing box.

[0010] In the concrete test block pressure detection device for construction engineering quality detection, the conversion mechanism includes a sleeve ring, a connecting arm and a hinged component, the sleeve ring is fixedly connected to the middle of the surface of the motor, the connecting arm is fixedly connected to one side of the sleeve ring, and the sleeve ring and the connecting arm are both slidingly connected to the inside of the connecting box, one end of the hinged component is hingedly connected to the end of the connecting arm away from the sleeve ring, and the hinged component is rotationally connected to the inside of the connecting box.

[0011] In the concrete test block pressure detection device for construction engineering quality detection, a through hole is formed in the middle of the connecting plate, the conduit close to one side of the connecting plate is arranged through the through hole and penetrating the connecting plate, and the conduit is slidingly connected to the connecting plate through the through hole.

[0012] In the concrete test block pressure detection device for construction engineering quality detection, the hinged component includes a hinged arm and a connecting head, one end of the connecting head is hingedly connected to the end of the connecting arm away from the sleeve ring, the other end of the connecting head is slidingly connected to the inside of the hinged arm, a spring is fixedly connected to the end of the connecting head inside the hinged arm, and the other end of the spring is fixedly connected to the inside of the hinged arm.

[0013] In the concrete test block pressure detection device for construction engineering quality detection, one end of the hinged arm away from the connecting head is fixedly connected with a lever, the lever is slidingly connected to the inside of the control box, a groove is formed in one side of the top of the connecting box, and the lever is slidingly connected to the groove.

[0014] Compared with the prior art, the concrete test block pressure detection device for construction engineering quality detection has the following advantages: 1. The sliding of the connecting box drives the two spades to shovel and scrape the bottom of the press and the upper surface of the workbench, thereby strongly shoveling and scraping the condensed debris, achieving automatic cleaning and ensuring the safety of the work; 2. The rotation of the connecting tooth driven by the motor drives the rotating tooth to rotate, and the reverse rotation of the upper and lower steel wool brush wheels driven by the meshing effect between the rotating tooth and the gear further improves the cleaning effect; 3. In the process of sliding the connecting box towards the test bench, the one strut rod is driven by the connecting tooth to push the extrusion plate, forcing the air bag on the side close to the connecting plate to be compressed and blow air out through the blowing box, and in the process of resetting the connecting box, the guide tooth is forced to engage with the toothed disc through the conversion mechanism, driving the other blowing mechanism to work, so as to blow and clean the cleaned part for multiple times, further improving the cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the control box cross-sectional structure of the present application; Figure 3 is a schematic diagram of the connecting wheel cross-sectional structure of the present application; Figure 4 is a schematic diagram of the connecting box structure of the present application; Figure 5 is a schematic diagram of the connecting plate cross-sectional structure of the present application; Figure 6 is a schematic diagram of the groove cross-sectional structure of the present application; Figure 7 is a schematic diagram of the hinge assembly enlarged structure of the present application; Figure 8 is a schematic diagram of the connecting box cross-sectional structure of the present application.

[0016] In the drawings: 1. Control box; 2. Test bench; 3. Hydraulic column; 4. Press; 5. Connecting box; 6. Scraper mechanism; 601. Connecting plate; 602. Scraper; 603. Wheel disc; 7. Brushing mechanism; 701. Steel brush wheel; 702. Motor; 8. Blowing mechanism; 801. Air bag; 802. Extrusion plate; 803. Strut rod; 9. Conversion mechanism; 901. Collar; 902. Connecting arm; 10. Jack; 11. Guide tooth; 12. Connecting tooth; 13. Rotating tooth; 14. Connecting wheel; 15. Gear; 16. Rotating wheel; 17. Toothed disc; 18. Blowing box; 19. Conduit; 20. Hinge assembly; 201. Hinge arm; 202. Connecting head; 21. Through hole; 22. Spring; 23. Lever; 24. Groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0018] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0019] Referring to Figures 1-8 A kind of concrete test block pressure detection device for construction engineering quality detection, including control box 1, one side of control box 1 is fixedly connected with test table 2, four hydraulic columns 3 are uniformly fixedly connected at the top of test table 2 four corners, the top of test table 2 is slidably connected with press 4 by hydraulic column 3, the inside of control box 1 is slidably connected with connecting box 5, connecting box 5 is disposed through control box 1, still include: Shovel scraping mechanism 6, shovel scraping mechanism 6 is slidably connected in the inside of connecting box 5, shovel scraping mechanism 6 is used to shovel and scrape the surface of test table 2 and the opposite side of press 4, shovel scraping mechanism 6 includes connecting plate 601, two shovel knives 602 and two wheel discs 603, connecting disc is slidably connected in the inside of connecting box 5, and the upper and lower sides of connecting plate 601 are respectively disposed through the upper and lower sides of connecting box 5, one end of connecting plate 601 is fixedly connected with shovel knife 602, penetrating to the outside of connecting box 5, and the upper and lower two shovel knives 602 are slidably connected with the bottom of press 4 and the top of test table 2 respectively, two wheel discs 603 are symmetrically rotatably connected in the inside of connecting box 5, one side of the surface of wheel disc 603 is hinged with top rod 10, the other end of two top rods 10 is hinged with one side of the surface of connecting plate 601.

[0020] Wherein, by placing test block on the top of test table 2, press 4 is driven downward by hydraulic column 3 to extrude until test block appears broken, to complete the compression test work of test block;Then connecting box 5 is driven by control box 1 to slide between press 4 and test table 2, in this process, wheel 16 drives wheel disc 603 to rotate, two top rods 10 can be driven to reciprocating push-pull connecting plate 601 through hinged effect, to drive the upper and lower two shovel knives 602 to shovel and scrape the surface of the bottom of press 4 and the top of test table 2 respectively, that is, the concrete debris condensed on the surface of the bottom of press 4 and the top of test table 2 can be removed powerfully, to realize automatic powerful cleaning.

[0021] The brush mechanism 7 is symmetrically connected to the upper and lower sides of the connecting box 5, and is used for re-sweeping the part treated by the scraper mechanism 6. The brush mechanism 7 comprises two steel brush wheels 701 and a motor 702. The two steel brush wheels 701 are symmetrically connected to the upper and lower sides of the connecting box 5, and the sides away from each other of the two steel brush wheels 701 are respectively provided with the upper and lower sides of the connecting box 5. The motor 702 is arranged in the connecting box 5. The output end of the motor 702 is fixedly connected with a guide tooth 11 through a shaft coupling. The side of the guide tooth 11 is engaged with a connecting tooth 12. The side of the connecting tooth 12 is fixedly connected with a rotating tooth 13. The two ends of the steel brush wheel 701 are symmetrically fixedly connected with two connecting wheels 14. The connecting wheel 14 at one end of the upper steel brush wheel 701 is drivingly connected with the rotating tooth 13 through a belt. The bottom of the rotating tooth 13 is engaged with a gear 15. The surface of the gear 15 is drivingly connected with the connecting wheel 14 at one end of the lower steel brush wheel 701 through a belt. The connecting wheel 14 at the other end of the steel brush wheel 701 is drivingly connected with a rotating wheel 16 through a belt. The rotating wheel 16 is fixedly connected with the wheel disc 603.

[0022] During the sliding of the connecting box 5 between the test bench 2 and the press 4, the motor 702 is close to the connecting tooth 12. At this time, the motor 702 can drive the connecting tooth 12 to rotate through the guide tooth 11, so as to drive the rotating tooth 13 to rotate, and drive the gear 15 below the rotating tooth 13 to rotate in the opposite direction through the engagement effect. Through the driving effect between the rotating tooth 13 and the gear 15 and the upper and lower connecting wheels 14, the upper and lower steel brush wheels 701 are driven to rotate in opposite directions. During the sliding of the connecting box 5 between the test bench 2 and the press 4, the working surface treated by the scraper 602 can be re-swept and cleaned through the steel brush wheel 701, and the sweeping direction is consistent with the sliding direction of the connecting box 5, so as to ensure the cleaning effect.

[0023] The blowing mechanism 8 is arranged on both sides in the connecting box 5, and is used for blowing and cleaning the surface of the test bench 2 and the press 4 on one side. The blowing mechanism 8 comprises a gas bag 801, an extrusion plate 802 and a supporting rod 803. The two gas bags 801 are arranged on both sides in the connecting box 5. The extrusion plate 802 is fixedly connected to one side of the gas bag 801. One end of the supporting rod 803 is hingedly connected to the side of the extrusion plate 802 away from the gas bag 801. The other end of one of the supporting rods 803 is hingedly connected with a tooth disc 17. The other end of the other supporting rod 803 away from the extrusion plate 802 is hingedly connected with the connecting tooth 12. The connecting box 5 is symmetrically fixedly connected with a blowing box 18 at both ends. The side of the gas bag 801 away from the extrusion plate 802 is in communication with the blowing box 18 through a conduit 19. The conversion mechanism 9 is arranged in the connecting box 5 and is used for driving the two blowing mechanisms 8 to work. The conversion mechanism 9 comprises a sleeve ring 901 and a connecting arm 902. The sleeve ring 901 is fixedly connected to the middle of the surface of the motor 702. The connecting arm 902 is fixedly connected to one side of the sleeve ring 901. The sleeve ring 901 and the connecting arm 902 are both slidingly connected to the inside of the connecting box 5. The end of the connecting arm 902 away from the sleeve ring 901 is hingedly connected with a hinged component 20. The hinged component 20 is rotationally connected to the inside of the connecting box 5. The middle of the connecting plate 601 is provided with a through hole 21. The conduit 19 close to one side of the connecting plate 601 is penetratingly arranged through the through hole 21 of the connecting plate 601 and is slidingly connected with the connecting plate 601 through the through hole 21. The end of the hinged arm 201 away from the connecting head 202 is fixedly connected with a push rod 23. The push rod 23 is slidingly connected to the inside of the control box 1. The top of one side of the connecting box 5 is provided with a groove 24. The push rod 23 is slidingly connected with the groove 24.

[0024] During the sliding of the connecting box 5 towards the test bench 2 and the press 4, the guide tooth 11 drives the connecting tooth 12 to rotate. One of the supporting rods 803 drives the extrusion plate 802 close to the connecting plate 601 to slide, so as to extrude the gas bag 801 close to the connecting plate 601. The upper and lower sides of the blowing box 18 close to the shovel 602 are driven to blow the bottom of the press 4 and the top of the test bench 2 through the conduit 19, so as to blow and clean the scattered and low-attached debris on the surface of the press 4 and the test bench 2, to ensure that the shovel 602 can smoothly contact the surface of the press 4 and the test bench 2, and to ensure the scraping effect. In addition, during the resetting sliding of the connecting box 5, the control box 1 pushes the push rod 23 to rotate reversely, so as to drive the connecting arm 902 and the sleeve ring 901 to slide reversely in the connecting box 5 through the hinged assembly 20, so as to drive the motor 702 to slide away from the connecting tooth 12 and gradually close to the tooth disc 17, so as to ensure that the final guide tooth 11 is engaged with the tooth disc 17, at this time, the tooth disc 17 rotates with the guide tooth 11, and another extrusion plate 802 drives another air bag 801 to be extruded through another supporting rod 803, so that another blowing box 18 blows the surface of the cleaned press 4 and test bench 2 again, so as to further ensure the cleaning effect.

[0025] The hinged assembly 20 comprises a hinged arm 201 and a connecting head 202, one end of the connecting head 202 is hinged with one end of the connecting arm 902 away from the sleeve ring 901, the other end of the connecting head 202 is slidably connected with the inside of the hinged arm 201, and one end of the connecting head 202 in the inside of the hinged arm 201 is fixedly connected with a spring 22, and the other end of the spring 22 is fixedly connected with the inside of the hinged arm 201.

[0026] Through the sliding effect between the connecting head 202 and the hinged arm 201, the smooth rotation of the hinged arm 201 can be ensured, and the connecting arm 902 and the sleeve ring 901 can be smoothly driven to slide through the connecting head 202 and the pushing force generated by the spring 22.

[0027] The specific working principle and use method of the application will be explained in detail as follows: in use, first, the test block is placed on the top of the test bench 2, the press 4 is driven downward by the hydraulic column 3 until the test block is broken, so as to complete the compression test of the test block; then the connecting box 5 is driven to slide between the press 4 and the test bench 2 by the control box 1, in this process, the wheel disc 603 is driven to rotate by the rotating wheel 16, the two jacks 10 are driven to reciprocatingly push and pull the connecting plate 601 through the hinged effect, so as to drive the upper and lower spades 602 to scrape the surface of the bottom of the press 4 and the surface of the top of the test bench 2 respectively, so that the concrete debris condensed on the surface of the bottom of the press 4 and the surface of the top of the test bench 2 can be removed; Second step, in the process of connecting box 5 sliding between test bench 2 and press 4, motor 702 is on the side close to connecting tooth 12, at this time motor 702 can drive connecting tooth 12 to rotate through guide tooth 11, in order to drive rotating tooth 13 to rotate, and drive gear 15 below rotating tooth 13 to rotate reversely through meshing effect, through the transmission effect between rotating tooth 13 and gear 15 and upper and lower two connecting wheels 14, drive upper and lower two steel brush wheels 701 to rotate oppositely, in the process of connecting box 5 sliding between test bench 2 and press 4, through steel brush wheel 701, the working surface scraped by shovel 602 is cleaned again, and the cleaning direction is consistent with the sliding direction of connecting box 5; Third step, in the process of connecting box 5 sliding between test bench 2 and press 4, guide tooth 11 drives connecting tooth 12 to rotate, that is, one of the supporting rods 803 drives the extrusion plate 802 close to the connecting plate 601 to slide, in order to extrude the air bag 801 close to the connecting plate 601, and through the upper and lower sides of the air blowing box 18 close to the shovel 602 and the air pipe 19, the bottom of the press 4 and the top of the test bench 2 are blown, in order to blow and clean the scattered and low adhesion debris on the surface of the press 4 and the test bench 2, to ensure that the shovel 602 can smoothly contact the surface of the press 4 and the test bench 2, and ensure the scraping effect; In addition, in the process of resetting and sliding of connecting box 5, the control box 1 close to the test bench 2 pushes the push rod 23 to rotate reversely, in order to drive the connecting arm 902 and the sleeve ring 901 to slide reversely in the connecting box 5 through the hinge assembly 20, in order to drive the motor 702 to slide away from the connecting tooth 12, and gradually close to the gear disc 17, to ensure that the gear disc 17 rotates with the guide tooth 11, and the other extrusion plate 802 drives the other air bag 801 to extrude through the other supporting rod 803, in order to force the other air blowing box 18 to blow and clean the surface of the press 4 and the test bench 2 again.

[0028] Further, the above-mentioned fixed connection should be understood in a broad sense unless otherwise specified and limited, for example, it can be welding, or gluing, or integrally formed, etc. The skilled in the art is familiar with the conventional means.

[0029] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A concrete test block pressure testing device for construction engineering quality testing, comprising a control box, characterized in that: A test bench is fixedly connected to one side of the control box. Four hydraulic columns are evenly fixedly connected to the four corners of the top of the test bench. A press is slidably connected to the top of the test bench through the hydraulic columns. A connecting box is slidably connected inside the control box, and the connecting box is through the control box. The control box also includes: A scraping mechanism is slidably connected to the inside of the connecting box. The scraping mechanism is used to scrape and clean the surfaces of the test bench and the press on the opposite side. The two sweeping mechanisms are symmetrically rotatably connected to the upper and lower sides of the connecting box. The sweeping mechanism is used to sweep the parts that have been treated by the scraping mechanism again. The air blowing mechanism has two air blowing devices respectively located on both sides inside the connecting box. The air blowing mechanism is used to clean the surfaces of the test bench and the press on opposite sides by blowing air multiple times. And a conversion mechanism, which is located inside the connecting box, is used to drive and control the two blowing mechanisms to work respectively.

2. The concrete test block pressure testing device for construction engineering quality testing according to claim 1, characterized in that: The scraping mechanism includes a connecting plate, two scrapers, and two discs. The connecting discs are slidably connected to the inside of the connecting box, and the upper and lower sides of the connecting plate are respectively connected to the upper and lower sides of the connecting box. One end of the connecting plate that extends to the outside of the connecting box is fixedly connected to the scraper. The upper and lower scrapers are slidably connected to the bottom of the press and the top of the test bench, respectively. The two discs are symmetrically rotated and connected to the inside of the connecting box. A push rod is hinged to one side of the disc surface, and the other end of each push rod is hinged to one side of the connecting plate surface.

3. The concrete test block pressure testing device for construction engineering quality testing according to claim 1, characterized in that: The brushing mechanism includes two steel brush wheels and a motor. The two steel brush wheels are symmetrically rotatably connected to the upper and lower sides of the connecting box, with the sides of the two steel brush wheels that are far apart from each other penetrating the upper and lower sides of the connecting box respectively. The motor is located inside the connecting box. The output end of the motor is fixedly connected to a guide tooth through a coupling. One side of the guide tooth is engaged with a connecting tooth, and one side of the connecting tooth is fixedly connected to a rotating tooth. Two connecting wheels are symmetrically fixedly connected to both ends of the steel brush wheels. The connecting wheel at the upper end of the steel brush wheel is connected to the rotating tooth through a belt. The bottom of the rotating tooth is engaged with a gear, and the surface of the gear is connected to the connecting wheel at the lower end of the steel brush wheel through a belt. The connecting wheel at the other end of the steel brush wheel is connected to a rotating wheel through a belt, and the rotating wheel is fixedly connected to a wheel disc.

4. The concrete test block pressure testing device for construction engineering quality testing according to claim 3, characterized in that: The air blowing mechanism includes an air bladder, a compression plate, and a support rod. Two air bladders are respectively located on both sides inside the connecting box. The compression plate is fixedly connected to one side of the air bladder. One end of the support rod is hinged to the side of the compression plate away from the air bladder. The other end of one support rod is hinged to a toothed disc, and the other support rod is hinged to a connecting tooth at the end away from the compression plate. Air blowing boxes are symmetrically fixedly connected to both ends of the connecting box. The side of the air bladder away from the compression plate is connected to the air blowing box through a conduit.

5. A concrete test block pressure testing device for construction engineering quality testing according to claim 3, characterized in that: The conversion mechanism includes a collar and a connecting arm. The collar is fixedly connected to the middle of the motor surface, and the connecting arm is fixedly connected to one side of the collar. Both the collar and the connecting arm are slidably connected inside the connecting box. A hinge assembly is hinged to the end of the connecting arm away from the collar, and the hinge assembly is rotatably connected inside the connecting box.

6. The concrete test block pressure testing device for construction engineering quality testing according to claim 1, characterized in that: The connecting plate has a through hole in the middle, and the conduit on the side near the connecting plate passes through the through hole and is slidably connected to the connecting plate through the through hole.

7. A concrete test block pressure testing device for construction engineering quality testing according to claim 5, characterized in that: The hinge assembly includes a hinge arm and a connector. One end of the connector is hinged to the end of the connector arm away from the collar, and the other end of the connector is slidably connected to the inside of the hinge arm. A spring is fixedly connected to the end of the connector located inside the hinge arm, and the other end of the spring is fixedly connected to the inside of the hinge arm.

8. A concrete test block pressure testing device for construction engineering quality testing according to claim 7, characterized in that: The hinge arm is fixedly connected to a lever at the end away from the connector. The lever is slidably connected to the inside of the control box. A groove is provided on one side of the top of the control box, and the lever is slidably connected to the groove.

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