Constructional engineering board density detection device

Abstract

The utility model discloses a density detection device for a constructional engineering board. The density detection device comprises a rack, an appliance storage box, a working table plate, a clamping table, a lifting sliding frame and a secondary detection structure, vertical reinforcing rods are installed at the bottom of the working table plate, a rack is installed at the bottoms of the vertical reinforcing rods, steering wheels are installed on the peripheral edges of the rack, an appliance storage box is installed on the upper surface of the rack, a partition plate is installed in the middle of the interior of the appliance storage box, and a lifting sliding frame is installed at the top of the working table plate. A primary detection structure is installed between the lifting sliding frames, a clamping table is installed on the upper surface of the working table plate and located under the lifting sliding frames, and a liquid crystal display, a secondary detection structure and an LED illumination structure are installed on the upper surface of the working table plate; due to the arrangement of the clamping table, the constructional engineering board can be stably fixed, it is ensured that shaking or displacement does not occur in the detection process, and the accuracy and safety of detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering board density detection application technology, specifically a building engineering board density detection device. Background Technology

[0002] Existing density testing devices for building slabs have some shortcomings in use. For example, some devices use a hot air blower to generate hot airflow to accelerate the return of water droplets adhering to the building slab to the water tank. However, in this process, some water droplets may be evaporated by the hot airflow, leading to measurement deviations and reducing the accuracy of the device. In addition, some devices fail to effectively reduce moisture loss from the surface of the slab during the testing process, which also affects the accuracy of density testing. Therefore, we propose a density testing device for building slabs. Utility Model Content

[0003] The purpose of this invention is to provide a density testing device for building slabs to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a building engineering slab density testing device, comprising a frame, an instrument storage box, a storage box door, a worktable, a clamping table, a primary testing structure, a lifting sliding frame, and a secondary testing structure; the bottom of the worktable is equipped with a vertical reinforcing rod, the bottom of the vertical reinforcing rod is equipped with a frame, and steering wheels are installed at the four edges of the frame. The design of installing a vertical reinforcing rod at the bottom of the worktable enhances the stability and load-bearing capacity of the worktable, and the bottom of the vertical reinforcing rod is connected to the frame, further stabilizing the foundation of the entire structure. The casters installed around the edges of the frame allow for easy movement and adjustment of the workbench, improving work efficiency and flexibility. An instrument storage box is mounted on the upper surface of the frame, with a partition in the center dividing it into upper and lower independent spaces. This design allows for the separate storage of different types of testing instruments, making retrieval and return more organized and convenient. The instrument storage box not only saves space but also ensures the safety and cleanliness of the testing instruments, preventing damage or loss during transportation or storage. The design of the upper surface of the frame also prioritizes operator convenience, making instrument retrieval and return easier and more efficient. A lifting sliding frame is installed on the top of the workbench, with a primary testing structure installed between it. This structure can slide up and down along the lifting sliding frame, allowing for flexible adjustment to different sizes and heights of building slabs, ensuring accuracy and adaptability. The lifting sliding frame not only improves testing efficiency but also reduces the physical burden on operators, making the testing process easier and more convenient. The design of the structure fully considers the detection accuracy and stability, enabling accurate measurement of the density of building engineering slabs and providing strong assurance for project quality. A clamping platform is installed on the upper surface of the worktable, located directly below the lifting sliding frame. The upper surface of the worktable is equipped with an LCD display, a secondary detection structure, and an LED lighting structure. A placement slot is nested within the upper surface of the worktable. The clamping platform stably fixes the building engineering slab, ensuring no shaking or displacement during the detection process, thus improving the accuracy and safety of the detection. The LCD display shows the detection results in real time, allowing operators to intuitively understand the density of the building engineering slab, facilitating timely judgment and recording. The secondary detection structure, as a supplement to the primary detection structure, can re-detect the building engineering slab from different angles or methods, further ensuring the accuracy and reliability of the detection results. The LED lighting structure provides ample light, making the detection process clearer and more intuitive, especially highlighting its importance in low-light environments. The placement slot design facilitates the temporary storage of testing equipment or samples by operators, making the entire detection process smoother and more efficient.

[0005] Preferably, the instrument storage box is fitted with a storage box door via a hinge, and a rectangular observation window is nested on the storage box door. An anti-slip pull rod is installed on the outer surface of the storage box door. The rectangular observation window allows the operator to directly observe the storage condition inside the instrument storage box without opening the storage box door, making it easier to quickly find the required testing instruments and improving work efficiency. The anti-slip pull rod is designed to be both ergonomic and have good anti-slip performance, making it easier and more stable for the operator to carry or move the instrument storage box, avoiding accidents caused by slipping.

[0006] Preferably, a pressing plate is installed on the clamping platform. A displacement groove is formed on the upper surface of the pressing plate. A bidirectional motor is installed inside the pressing plate via a mounting base. Bidirectional tightening screws are installed on both output ends of the bidirectional motor, and pressing blocks are respectively installed on the bidirectional tightening screws. Driven by the bidirectional tightening screws, the pressing blocks can move along the displacement groove in relative or opposite directions, thereby stably clamping and fixing the construction slab placed on the clamping platform. This avoids errors in the test results caused by the shaking of the construction slab during the testing process, improving the accuracy and stability of the test. The design of the displacement groove not only provides guidance for the movement of the pressing blocks but also enhances the structural strength of the pressing plate, making the entire clamping device more robust and durable. The use of a bidirectional motor enables precise control of the pressing blocks. Operators can adjust the clamping force of the pressing blocks according to actual needs to adapt to the testing requirements of construction slabs of different specifications and materials. A first fixing plate and a second fixing plate are installed inside the pressing plate. The other end of the bidirectional tightening screw is fixed to the first and second fixed plates via bearing seats. A first clamping rod is mounted on one end of the bidirectional tightening screw via a first sliding block, and a first clamping block is mounted on the first clamping rod. A second clamping rod is mounted on the other end of the bidirectional tightening screw via a second sliding block, and a second clamping block is mounted on the second clamping rod. The first and second clamping blocks are located on opposite sides of the displacement groove. When the bidirectional motor starts, the bidirectional tightening screw begins to rotate. The first and second sliding blocks drive the first and second clamping rods to move relative to or in opposite directions along the displacement groove, thereby driving the first and second clamping blocks to clamp the building slab. The first and second fixed plates not only provide stable support for the bidirectional tightening screw but also ensure the stability and accuracy of the extrusion block during movement, further improving the reliability and durability of the clamping device. Through the synergistic action of the first and second clamping blocks, effective clamping and fixing of the building slab is achieved, ensuring the accuracy and stability of the testing process.

[0007] Preferably, a stable mounting base is installed on one side of the detection structure. A hydraulic lifting cylinder is installed at the bottom of the stable mounting base. A sliding plate is installed on the output end of the hydraulic lifting cylinder. The two ends of the sliding plate are installed on sliding rails on the lifting sliding frame. The sliding rails allow the sliding plate to move smoothly up and down on the lifting sliding frame. The hydraulic lifting cylinder precisely controls the height of the sliding plate through the extension and retraction of its output end, thereby achieving vertical position adjustment of the detection structure and ensuring that the detection structure can stably and accurately contact the building slab, providing a solid foundation for subsequent density testing. The stable mounting base, as a supporting component of the hydraulic lifting cylinder, effectively enhances the stability of the entire lifting system with its robust structural design. A sliding groove is provided on the lifting sliding frame, and a sliding plate is installed on the sliding groove. The sliding rod passes through both ends of the sliding plate. A circular mounting plate is installed at the bottom of the sliding plate, and a compression ball is installed at the center of the circular mounting plate. The compression ball is designed so that when it comes into contact with the building slab, its circular shape can evenly distribute the pressure, avoiding inaccurate detection or damage to the slab surface caused by excessive local pressure. The sliding rod is set in the sliding groove, which not only provides additional support for the sliding plate, but also further ensures the stability of the sliding plate during the lifting process, preventing the detection accuracy from being affected by shaking. The circular mounting plate, as the carrier of the compression ball, has a robust structural design that can withstand greater pressure. The tight connection between the circular mounting plate and the compression ball effectively prevents the compression ball from falling off or loosening during the detection process, further improving the safety and reliability of the detection device.

[0008] Preferably, a working base plate is mounted on the secondary detection structure. An electromagnetic track is mounted on the upper surface of the working base plate, and an electromagnetic slider is mounted on the electromagnetic track. A compression adjustment cylinder is mounted on the support rod of the electromagnetic slider via an angle adjustment component. The compression adjustment cylinder allows the testing personnel to apply different pressures to the building slab on the working base plate according to actual needs, in order to further test its compressive strength and density distribution. The cooperation between the electromagnetic track and the electromagnetic slider not only enables precise horizontal movement of the compression adjustment cylinder, but also ensures the stability and accuracy of the compression adjustment cylinder during movement through electromagnetic force control. The addition of the angle adjustment component makes the compression angle of the compression adjustment cylinder adjustable, thereby adapting to the testing needs of building slabs of different shapes and specifications, greatly improving the flexibility and practicality of the testing device.

[0009] Preferably, the extrusion regulating cylinder is fixed to the front surface of the electromagnetic slider support rod by a vertical reinforcing plate. An extrusion plate is installed on the output end of the extrusion regulating cylinder. A rectangular mounting frame is installed on the upper surface of the working plate by a vertical support rod. A pressure measuring working area is set on the rectangular mounting frame. A pressure detection sensor is installed at the center of the pressure measuring working area. The pressure detection sensor can monitor the pressure applied by the extrusion regulating cylinder to the building engineering plate in real time and transmit the pressure data to the control system, so that the testing personnel can accurately grasp the compressive strength of the building engineering plate. The design of the rectangular mounting frame not only enhances the structural strength of the working plate, but also provides a stable and reliable mounting platform for the pressure measuring working area. The close cooperation between the extrusion plate and the pressure measuring working area ensures that the pressure during the extrusion process can be evenly transmitted to the building engineering plate, thereby improving the accuracy and reliability of the test results. The addition of the vertical reinforcing plate further enhances the stability of the extrusion regulating cylinder on the electromagnetic slider support rod, effectively avoiding shaking or displacement caused by excessive extrusion force, and further improving the stability and safety of the testing device.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The extrusion ball of this utility model allows for even pressure distribution upon contact with the building slab, thanks to its circular shape. This avoids inaccurate testing or damage to the slab surface caused by excessive local pressure. The sliding rod within the sliding groove not only provides additional support for the sliding plate but also further ensures its stability during lifting and lowering, preventing vibration from affecting testing accuracy. The circular mounting plate, serving as the carrier of the extrusion ball, has a robust structural design capable of withstanding significant pressure. The tight connection between the circular mounting plate and the extrusion ball effectively prevents the extrusion ball from falling off or loosening during testing, further enhancing the safety and reliability of the testing device.

[0012] 2. The pressure detection sensor of this utility model can monitor the pressure applied to the building slab by the extrusion regulating cylinder in real time and transmit the pressure data to the control system, so that the testing personnel can accurately grasp the compressive strength of the building slab. The rectangular mounting frame design not only enhances the structural strength of the working plate, but also provides a stable and reliable mounting platform for the pressure measuring area. The close cooperation between the extrusion plate and the pressure measuring area ensures that the pressure during the extrusion process can be evenly transmitted to the building slab, thereby improving the accuracy and reliability of the test results. The addition of the vertical reinforcement plate further enhances the stability of the extrusion regulating cylinder on the electromagnetic slider support, effectively avoiding shaking or displacement caused by excessive extrusion force, and further improving the stability and safety of the testing device. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a schematic diagram of the external structure of the clamping platform of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the clamping platform of this utility model;

[0016] Figure 4 This is a schematic diagram of the primary detection structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the secondary detection structure of this utility model;

[0018] In the diagram: 1. Steering wheel; 2. Frame; 3. Equipment storage box; 4. Storage box door; 41. Rectangular observation window; 42. Anti-slip pull rod; 5. Partition; 6. Vertical reinforcing rod; 7. Workbench; 8. Clamping table; 81. Extrusion table; 82. First clamping rod; 83. Second clamping rod; 84. Displacement groove; 85. First fixing plate; 86. Second fixing plate; 87. Bidirectional tightening screw; 88. First sliding block; 89. Mounting base; 810. Bidirectional motor; 811. First clamping block; 812. Second clamping block; 813. Second sliding block; 9. Primary detection structure; 91. Stable mounting base; 92. Hydraulic lifting cylinder; 93. Sliding plate; 94. Circular mounting plate; 95. Sliding rail; 96. Extruded sphere; 97. Sliding groove; 98. Sliding rod; 10. Lifting sliding frame; 11. LCD display; 12. Secondary detection structure; 121. Working base plate; 122. Electromagnetic rail; 123. Angle adjustment component; 124. Electromagnetic slider; 125. Extrusion adjustment cylinder; 126. Vertical reinforcement plate; 127. Extrusion disc; 128. Pressure measuring working area; 129. Pressure detection sensor; 1210. Rectangular mounting frame; 1211. Vertical support rod; 13. LED lighting structure; 14. Placement slot. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5This utility model provides an embodiment of a building engineering slab density testing device, comprising a frame 2, an instrument storage box 3, a storage box door 4, a workbench 7, a clamping table 8, a primary testing structure 9, a lifting sliding frame 10, and a secondary testing structure 12; the bottom of the workbench 7 is equipped with a vertical reinforcing rod 6, the bottom of the vertical reinforcing rod 6 is equipped with a frame 2, and the four edges of the frame 2 are equipped with steering wheels 1. The design of installing the vertical reinforcing rod 6 at the bottom of the workbench 7 enhances the stability and load-bearing capacity of the workbench, and the bottom of the vertical reinforcing rod 6 is connected to the frame 2, further stabilizing the foundation of the entire structure.The casters 1 installed around the edges of the frame 2 allow the entire workbench to be easily moved and adjusted, improving work efficiency and flexibility. An instrument storage box 3 is installed on the upper surface of the frame 2. A partition 5 is installed in the middle of the interior of the instrument storage box 3, dividing it into two independent spaces. This design allows for the separate storage of different types of testing instruments, making the retrieval and return of instruments more organized and convenient. The instrument storage box 3 not only saves space but also ensures the safety and cleanliness of the testing instruments, preventing damage or loss during transportation or storage. The design of the upper surface of the frame 2 also fully considers the convenience of the operator, making the picking up and putting back of the equipment more convenient and efficient. A lifting sliding frame 10 is installed on the top of the workbench 7, and a primary inspection structure 9 is installed between the lifting sliding frames 10. The primary inspection structure 9 can slide up and down along the lifting sliding frame 10. This design allows for flexible adjustment according to different sizes and heights of building slabs, ensuring the accuracy and adaptability of the inspection. The use of the lifting sliding frame 10 not only improves inspection efficiency but also reduces the physical burden on the operator, making the inspection process easier and more convenient. The primary inspection structure 9... The design fully considers detection accuracy and stability, enabling accurate measurement of the density of building slabs and providing strong assurance for project quality. A clamping platform 8 is installed on the upper surface of the workbench 7, located directly below the lifting sliding frame 10. An LCD display 11, a secondary detection structure 12, and an LED lighting structure 13 are installed on the upper surface of the workbench 7. A placement groove 14 is nested within the upper surface of the workbench 7. The clamping platform 8 stably fixes the building slab, ensuring no shaking or displacement during detection, thus improving the accuracy and safety of the detection. The LCD display 11 can display data in real time. The test results allow operators to intuitively understand the density of the building engineering slabs, facilitating timely judgment and recording. The secondary test structure 12, as a supplement to the primary test structure, can re-test the building engineering slabs from different angles or methods, further ensuring the accuracy and reliability of the test results. The LED lighting structure 13 provides ample light, making the test process clearer and more intuitive, especially highlighting its importance in low-light environments. The placement slot 14 facilitates the temporary storage of testing equipment or samples by operators, making the entire test process smoother and more efficient.

[0021] The instrument storage box 3 is fitted with a storage box door 4 via a hinge. A rectangular observation window 41 is nested on the storage box door 4, and an anti-slip pull rod 42 is installed on the outer surface of the storage box door 4. The rectangular observation window 41 allows the operator to directly observe the storage condition inside the instrument storage box 3 without opening the storage box door 4, making it easier to quickly find the required testing instruments and improving work efficiency. The anti-slip pull rod 42 is designed to be both ergonomic and have good anti-slip performance, making it easier and more stable for the operator to carry or move the instrument storage box 3, avoiding accidents caused by slipping.

[0022] An extrusion plate 81 is mounted on the clamping table 8. A displacement groove 84 is formed on the upper surface of the extrusion plate 81. A bidirectional motor 810 is installed inside the extrusion plate 81 via a mounting base 89. Bidirectional tightening screws 87 are mounted on both output ends of the bidirectional motor 810. Extrusion blocks 88 are mounted on the bidirectional tightening screws 87. Driven by the bidirectional tightening screws 87, the extrusion blocks 88 can move in opposite or relative directions along the displacement groove 84, thereby stably clamping and fixing the construction slab placed on the clamping table 8, preventing... The error in the test results caused by the shaking of the building slab during the testing process is reduced. The accuracy and stability of the test are improved. The design of the displacement groove 84 not only provides guidance for the movement of the extrusion block 88, but also enhances the structural strength of the extrusion table 81, making the entire clamping device more robust and durable. The use of the bidirectional motor 810 enables precise control of the extrusion block 88. Operators can adjust the clamping force of the extrusion block 88 according to actual needs to adapt to the testing requirements of building slabs of different specifications and materials. The extrusion table 81 has a first fixing plate 85 and a second fixing plate 86 installed inside. The other end of the bidirectional tightening screw 87... Fixed to the first fixed plate 85 and the second fixed plate 86 by bearing seats, the bidirectional tightening screw 87 has a first clamping rod 82 mounted on one end via a first sliding block 88, and a first clamping block 811 mounted on the first clamping rod 82. The other end of the bidirectional tightening screw 87 has a second clamping rod 83 mounted on a second sliding block 813, and a second clamping block 812 mounted on the second clamping rod 83. The first clamping block 811 and the second clamping block 812 are located on both sides of the displacement groove 84, respectively. When the bidirectional motor 810 starts, the bidirectional tightening screw 87 begins to rotate, driving the first sliding block 88 and the second sliding block 813 to rotate. The first clamping rod 82 and the second clamping rod 83 move in opposite or opposite directions along the displacement groove 84, thereby driving the first clamping block 811 and the second clamping block 812 to clamp the building engineering board. The first fixing plate 85 and the second fixing plate 86 not only provide stable support for the bidirectional tightening screw 87, but also ensure the stability and accuracy of the extrusion block 88 during movement, further improving the reliability and durability of the clamping device. Through the synergistic effect of the first clamping block 811 and the second clamping block 812, the building engineering board is effectively clamped and fixed, ensuring the accuracy and stability of the testing process.

[0023] A stable mounting base 91 is installed on one side of the detection structure 9. A hydraulic lifting cylinder 92 is installed at the bottom of the stable mounting base 91. A sliding plate 93 is installed on the output end of the hydraulic lifting cylinder 92. The two ends of the sliding plate 93 are installed on the sliding rails 95 on the lifting sliding frame 10. The sliding rails 95 allow the sliding plate 93 to move smoothly up and down on the lifting sliding frame 10. The hydraulic lifting cylinder 92 precisely controls the height of the sliding plate 93 through the extension and retraction of its output end, thereby realizing the vertical position adjustment of the detection structure 9 and ensuring that the detection structure 9 can stably and accurately contact the building slab, providing a solid foundation for subsequent density testing. The stable mounting base 91, as a supporting component of the hydraulic lifting cylinder 92, has a stable structural design that effectively enhances the stability of the entire lifting system. A sliding groove 97 is provided on the lifting sliding frame 10, and a sliding plate is installed on the sliding groove 97. A rod 98 and a sliding rod 98 pass through both ends of a sliding plate 93. A circular mounting plate 94 is installed at the bottom of the sliding plate 93, and a compression ball 96 is installed at the center of the circular mounting plate 94. The compression ball 96 is designed to distribute pressure evenly when in contact with the building slab, avoiding inaccurate detection or damage to the slab surface caused by excessive local pressure. The sliding rod 98 is installed in the sliding groove 97, which not only provides additional support for the sliding plate 93, but also further ensures the stability of the sliding plate 93 during the lifting process, preventing the detection accuracy from being affected by shaking. The circular mounting plate 94, as the carrier of the compression ball 96, has a robust structural design that can withstand greater pressure. The tight connection between the circular mounting plate 94 and the compression ball 96 effectively prevents the compression ball 96 from falling off or loosening during the detection process, further improving the safety and reliability of the detection device.

[0024] The secondary detection structure 12 is equipped with a working base plate 121. An electromagnetic track 122 is mounted on the upper surface of the working base plate 121. An electromagnetic slider 124 is mounted on the electromagnetic track 122. A compression adjustment cylinder 125 is mounted on the support rod of the electromagnetic slider 124 via an angle adjustment component 123. The compression adjustment cylinder 125 allows the testing personnel to apply different compression forces to the building engineering board on the working base plate 121 according to actual needs, in order to further test its compressive strength and density distribution. The cooperation between the electromagnetic track 122 and the electromagnetic slider 124 not only realizes the precise horizontal movement of the compression adjustment cylinder 125, but also ensures the stability and accuracy of the compression adjustment cylinder 125 during the movement process through the control of electromagnetic force. The addition of the angle adjustment component 123 makes the extrusion angle of the extrusion adjustment cylinder 125 adjustable, thereby adapting to the testing needs of building engineering slabs of different shapes and specifications, greatly improving the flexibility and practicality of the testing device. The extrusion adjustment cylinder 125 is fixed to the front surface of the support rod of the electromagnetic slider 124 by the vertical reinforcing plate 126. An extrusion plate 127 is installed on the output end of the extrusion adjustment cylinder 125. A rectangular mounting frame 1210 is installed on the upper surface of the working base plate 121 by the vertical support rod 1211. A pressure measuring working area 128 is set on the rectangular mounting frame 1210. A pressure detection sensor 129 is installed at the center of the pressure measuring working area 128. The setting of the pressure detection sensor 129 can monitor the extrusion adjustment cylinder 125 on the building in real time. The pressure applied to the engineering board is measured and transmitted to the control system, allowing inspectors to accurately assess the compressive strength of the engineering board. The rectangular mounting frame 1210 not only enhances the structural strength of the working base plate 121 but also provides a stable and reliable mounting platform for the pressure testing area 128. The close fit between the extrusion plate 127 and the pressure testing area 128 ensures that the pressure during the extrusion process is evenly transmitted to the engineering board, thereby improving the accuracy and reliability of the test results. The addition of the vertical reinforcing plate 126 further enhances the stability of the extrusion regulating cylinder 125 on the electromagnetic slider 124 support rod, effectively preventing shaking or displacement caused by excessive extrusion force, and further improving the stability and safety of the testing device.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A density testing device for building slabs, comprising a frame (2), an instrument storage box (3), a storage box door (4), a worktable (7), a clamping table (8), a primary testing structure (9), a lifting sliding frame (10), and a secondary testing structure (12); characterized in that: The bottom of the workbench (7) is equipped with a vertical reinforcing rod (6), and a frame (2) is installed at the bottom of the vertical reinforcing rod (6). Steering wheels (1) are installed at the four edges of the frame (2). An instrument storage box (3) is installed on the upper surface of the frame (2). A partition (5) is installed in the middle of the interior of the instrument storage box (3). A lifting sliding frame (10) is installed on the top of the workbench (7). A primary detection structure (9) is installed between the lifting sliding frames (10). A clamping table (8) is installed on the upper surface of the workbench (7). The clamping table (8) is located directly below the lifting sliding frame (10). An LCD display (11), a secondary detection structure (12), and an LED lighting structure (13) are installed on the upper surface of the workbench (7). A placement slot (14) is nested on the upper surface of the workbench (7).

2. The slab density testing device for building engineering according to claim 1, characterized in that: The storage box (3) is fitted with a storage box door (4) via a hinge. A rectangular observation window (41) is nested on the storage box door (4). An anti-slip pull rod (42) is installed on the outer surface of the storage box door (4).

3. The density detection device for building slabs according to claim 1, characterized in that: An extrusion plate (81) is mounted on the clamping table (8). A displacement groove (84) is formed on the upper surface of the extrusion plate (81). A bidirectional motor (810) is installed inside the extrusion plate (81). The bidirectional motor (810) is mounted inside the extrusion plate (81) via a mounting base (89). Bidirectional tightening screws (87) are installed on both output ends of the bidirectional motor (810). A first fixing plate (85) and a second fixing plate (86) are installed inside the extrusion plate (81). The other end of the bidirectional tightening screw (87) is fixed to the first fixed plate (85) and the second fixed plate (86) through the bearing seat. One end of the bidirectional tightening screw (87) is equipped with a first clamping rod (82) through the first sliding block (88), and a first clamping block (811) is installed on the first clamping rod (82). The other end of the bidirectional tightening screw (87) is equipped with a second clamping rod (83) through the second sliding block (813), and a second clamping block (812) is installed on the second clamping rod (83).

4. The density detection device for building slabs according to claim 1, characterized in that: A stable mounting base (91) is installed on the primary detection structure (9). A hydraulic lifting cylinder (92) is installed at the bottom of the stable mounting base (91). A sliding plate (93) is installed on the output end of the hydraulic lifting cylinder (92). The two ends of the sliding plate (93) are installed on the sliding rails (95) on the lifting sliding frame (10). A sliding groove (97) is opened on the lifting sliding frame (10). A sliding rod (98) is installed on the sliding groove (97). The sliding rod (98) passes through both ends of the sliding plate (93). A circular mounting plate (94) is installed at the bottom of the sliding plate (93). A squeezed ball (96) is installed at the center of the circular mounting plate (94).

5. The slab density testing device for building engineering according to claim 1, characterized in that: The secondary detection structure (12) is equipped with a working base plate (121), an electromagnetic track (122) is installed on the upper surface of the working base plate (121), an electromagnetic slider (124) is installed on the electromagnetic track (122), and a compression adjustment cylinder (125) is installed on the support rod of the electromagnetic slider (124) through an angle adjustment component (123).

6. The density detection device for building slabs according to claim 5, characterized in that: The extrusion regulating cylinder (125) is fixed to the front surface of the support rod of the electromagnetic slider (124) by a vertical reinforcing plate (126). An extrusion plate (127) is installed on the output end of the extrusion regulating cylinder (125). A rectangular mounting frame (1210) is installed on the upper surface of the working base plate (121) by a vertical support rod (1211). A pressure measuring working area (128) is provided on the rectangular mounting frame (1210). A pressure detection sensor (129) is installed at the center of the pressure measuring working area (128).

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