Concrete gravel firmness test device
By designing an automated concrete sand and gravel rugged testing device, the problems of time-consuming and human factors are solved, automated soaking and drying are realized, testing efficiency and accuracy are improved, and cost is reduced.
Patent Information
- Application Number
- CN202422162068.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The solidity test of existing concrete sand and gravel takes a long time and is susceptible to human factors, making it difficult to accurately control the soaking and drying time.
A concrete sand and gravel ruggedness test device is designed, including a mobile rack, a drying box and a console, to realize the automated soaking and drying process, and to realize the automatic movement and processing of samples through the motor-driven lead screw and connecting rod structure.
The immersion and drying process is automated, which reduces the influence of human factors, improves the test efficiency and accuracy of results, and reduces production costs.
Smart Images
Figure CN223078157U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of testing equipment, and more specifically, to a concrete sand and gravel soundness test device. Background Technique
[0002] The concrete sand and gravel soundness test is a building material test. It is necessary to soak the sand and gravel as samples in a saturated sodium sulfate reagent, and then wash and dry the soaked samples. The whole process takes at least eight hours, and each test needs to repeat the process five times. Its main purpose is to evaluate the durability of the sand and gravel, so as to determine whether it can remain stable under the influence of various natural environments for a long time. By conducting soundness tests on different batches of sand and gravel, quality problems can be discovered in time, the use of unqualified materials can be avoided, and the project quality can be ensured.
[0003] Before the construction of a building project, the operator needs to conduct a soundness test on the concrete sand and gravel to ensure the long-term stability of the sand and gravel. In the current test, the cyclic process of soaking and drying generally needs to be carried out manually, but this whole process takes a very long time, and it is difficult for the operator to accurately control the soaking and drying time, which is extremely likely to cause the influence of human factors on the final test result. Therefore, it needs to be improved. Content of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a concrete sand and gravel soundness test device, which has the advantages of automatically soaking and drying.
[0005] To achieve the above object, the utility model provides the following technical solution: A concrete sand and gravel soundness test device, including a base, a test bench is fixedly connected to the left side of the upper surface of the base, a constant temperature barrel is fixedly installed on the inner surface of the right side of the test bench, a moving frame is movably connected to the right side of the upper surface of the test bench, mounting blocks are fixedly connected to the front and rear sides of the right surface of the test bench, a limiting rod is fixedly connected to the upper side of the front surface of the mounting block, a first motor is fixedly installed on the front surface of the mounting block and located below the limiting rod, the other end of the output shaft of the first motor is fixedly sleeved with a double-threaded lead screw, the rear ends of the double-threaded lead screw and the limiting rod both penetrate through the mounting block and extend to the rear side of the mounting block, a moving block is threadedly sleeved on the outer surface of the double-threaded lead screw and located inside the mounting block, the inner surface of the moving block and the outer surface of the limiting rod are movably sleeved, the upper side of the outer surface of the moving block is hinged with a first connecting rod, the other end of the first connecting rod is hinged with a second connecting rod, the other end of the second connecting rod is hinged with a third connecting rod, and the other end of the third connecting rod is hinged with the right surface of the moving frame.
[0006] As a preferred technical solution of the present utility model, a control console located on the left side of the constant temperature barrel is fixedly connected to the upper surface of the inspection table. A top rod is fixedly connected to the upper surface of the inspection table, and a top plate is fixedly connected to the upper surface of the top rod. A fixed rod is fixedly connected to the right side of the upper surface of the inspection table. The top end of the fixed rod sequentially penetrates through the moving frame and the top plate and extends above the top plate. The outer surface of the fixed rod is movably sleeved with the inner surface of the moving frame. A drying box located directly above the constant temperature barrel is fixedly installed on the inner surface of the top plate.
[0007] As a preferred technical solution of the present utility model, a placement plate located inside the constant temperature barrel is fixedly connected to the lower surface of the moving frame. A placement rack is fixedly connected to the upper surface of the placement plate. A liquid valve is fixedly connected to the bottom end of the inner surface of the constant temperature barrel. The bottom end of the liquid valve penetrates through the constant temperature barrel and extends below the constant temperature barrel and is fixedly connected to a waste discharge pipe. The bottom end of the waste discharge pipe sequentially penetrates through the inspection table and the base and extends below the base.
[0008] As a preferred technical solution of the present utility model, a liquid pump is fixedly connected to the left surface of the inspection table. An inlet liquid pipe is fixedly connected to the right surface of the liquid pump. The right end of the inlet liquid pipe sequentially penetrates through the inspection table and the constant temperature barrel and extends into the constant temperature barrel. The outer surface of the inlet liquid pipe is fixedly sleeved with the inner surface of the constant temperature barrel. A liquid inlet pipe is fixedly connected to the outer surface of the liquid pump. The other end of the liquid inlet pipe is fixedly connected to a communication box. The outer surface of the communication box is fixedly connected to the inspection table.
[0009] As a preferred technical solution of the present utility model, a closing plate is movably connected to the inner surface of the communication box. Limit blocks located on the left and right sides of the closing plate are fixedly connected to the inner surface of the communication box. A movable rod is fixedly connected to the left surface of the closing plate. The outer end of the movable rod penetrates through the communication box and extends outside the communication box and is fixedly connected to a toothed plate. The outer surface of the toothed plate is movably connected to a limit plate. The limit plate is fixedly connected to the outer surface of the inspection table.
[0010] As a preferred technical solution of the present utility model, a second motor located above the toothed plate is fixedly installed on the outer surface of the inspection table. A second circular shaft is fixedly sleeved on the other end of the output shaft of the second motor. A gear is fixedly connected to the other end of the second circular shaft. The outer surface of the gear is meshed with the outer surface of the toothed plate.
[0011] As a preferred technical solution of the present utility model, a pure water bucket is fixedly connected to the rear side of the upper surface of the base. A first connecting pipe is fixedly sleeved at the bottom end of the inner surface of the pure water bucket. The other end of the first connecting pipe sequentially penetrates through the pure water bucket and the connecting box and extends into the interior of the connecting box. A saturated sodium sulfate reagent bucket is fixedly connected to the upper surface of the base on the right side of the pure water bucket. A second connecting pipe is fixedly sleeved at the bottom end of the inner surface of the saturated sodium sulfate reagent bucket. The other end of the second connecting pipe sequentially penetrates through the saturated sodium sulfate reagent bucket and the connecting box and extends into the interior of the connecting box. The outer surfaces of both the first connecting pipe and the second connecting pipe are fixedly sleeved with the inner surface of the connecting box.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. By setting the moving frame, placing frame, drying box and control console, the control console can accurately control the soaking time of the sample. When the sample soaking is completed, the first motor and the drying box will be started under the control of the control console. The operation of the first motor will cause the double-threaded lead screw to rotate. At this time, the two moving blocks will start to move towards each other and drive the first connecting rod, so that the other end of the first connecting rod will drive the second connecting rod and cause the second connecting rod to start rotating. Similarly, the third connecting rod will also start rotating under the drive of the second connecting rod. Finally, the moving frame, the placing frame and the three-legged wire basket containing the sample will enter the interior of the drying box, and the operation of the drying box will start to automatically dry the soaked sample, thereby realizing the functions of automatically soaking and drying the test sand and gravel samples, and effectively reducing the influence of human factors on the test results.
[0014] 2. By setting the liquid inlet pipe, connecting box, closing plate, toothed plate and gear, when the second motor starts to operate, the second round shaft and the gear will start to rotate. At this time, the toothed plate and the closing plate as a whole will start to move to the right under the meshing drive of the gear. Finally, when the closing plate moves to the right side of the liquid inlet pipe, the closing plate will seal the right end of the connecting box, so that the solution in the saturated sodium sulfate reagent bucket cannot enter the liquid inlet pipe through the connecting box and finally enter the interior of the constant temperature bucket. Therefore, the operator does not need to use two liquid pumps to separately add saturated sodium sulfate solution and pure water into the constant temperature bucket, which plays a role in reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is a schematic structural diagram of the back of the present utility model;
[0017] Figure 3 is a schematic cross-sectional structural diagram of the water bucket of the present utility model;
[0018] Figure 4 Schematic cross-sectional structure diagram of the valve of the present utility model;
[0019] Figure 5 Schematic cross-sectional structure diagram of the communication box of the present utility model;
[0020] Figure 6 Schematic structure diagram of the liquid inlet pipe of the present utility model
[0021] Figure 7 is Figure 1 Partial enlarged structure diagram at position A in
[0022] In the figure: 1, base; 2, inspection table; 3, constant temperature barrel; 4, moving frame; 5, mounting block; 6, first motor; 7, double-threaded lead screw; 8, moving block; 9, first connecting rod; 10, second connecting rod; 11, third connecting rod; 12, limiting rod; 13, placing plate; 14, placing rack; 15, liquid valve; 16, waste discharge pipe; 17, liquid pump; 18, liquid inlet pipe; 19, liquid inlet pipe; 20, communication box; 21, closing plate; 22, limiting block; 23, movable rod; 24, toothed plate; 25, limiting plate; 26, second motor; 27, second round shaft; 28, gear; 29, pure water bucket; 30, first connecting pipe; 31, saturated sodium sulfate reagent bucket; 32, second connecting pipe; 33, ejector rod; 34, top plate; 35, drying oven; 36, fixing rod; 37, control console. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Such as Figures 1 to 6As shown in the figure, the utility model provides a test device for the soundness of concrete sand and gravel, including a base 1. On the left side of the upper surface of the base 1, a test bench 2 is fixedly connected. Inside the right surface of the test bench 2, a constant temperature barrel 3 is fixedly installed. On the right side of the upper surface of the test bench 2, a movable frame 4 is movably connected. On both the front and rear sides of the right surface of the test bench 2, mounting blocks 5 are fixedly connected. On the upper side of the front surface of the mounting block 5, a limiting rod 12 is fixedly connected. On the front surface of the mounting block 5, a first motor 6 is fixedly installed below the limiting rod 12. At the other end of the output shaft of the first motor 6, a double-threaded lead screw 7 is fixedly sleeved. The rear ends of both the double-threaded lead screw 7 and the limiting rod 12 penetrate through the mounting block 5 and extend to the rear side of the mounting block 5. On the outer surface of the double-threaded lead screw 7, a moving block 8 located inside the mounting block 5 is threadedly sleeved. The inner surface of the moving block 8 and the outer surface of the limiting rod 12 are movably sleeved. On the upper side of the outer surface of the moving block 8, a first connecting rod 9 is hinged. At the other end of the first connecting rod 9, a second connecting rod 10 is hinged. At the other end of the second connecting rod 10, a third connecting rod 11 is hinged. At the other end of the third connecting rod 11, it is hinged to the right surface of the movable frame 4.
[0025] The operation of the first motor 6 will cause the two moving blocks 8 to start moving towards each other. At this time, the two first connecting rods 9 will start to rotate driven by the moving blocks 8. The other end of the first connecting rod 9 will drive the second connecting rod 10 to rotate the second connecting rod 10, and the other end of the second connecting rod 10 will drive the third connecting rod 11 to start rotating the third connecting rod 11. Finally, the other end of the third connecting rod 11 will drive the movable frame 4, causing the whole movable frame 4 to move.
[0026] Among them, on the upper surface of the test bench 2, a control console 37 located on the left side of the constant temperature barrel 3 is fixedly connected. On the upper surface of the test bench 2, a top rod 33 is fixedly connected. On the upper surface of the top rod 33, a top plate 34 is fixedly connected. On the right side of the upper surface of the test bench 2, a fixed rod 36 is fixedly connected. The top end of the fixed rod 36 sequentially penetrates through the movable frame 4 and the top plate 34 and extends above the top plate 34. The outer surface of the fixed rod 36 and the inner surface of the movable frame 4 are movably sleeved. Inside the top plate 34, a drying box 35 located directly above the constant temperature barrel 3 is fixedly installed.
[0027] The drying box 35 can dry the soaked sand and gravel samples, and the control console 37 can perform timing and control functions. The output ends of the control console 37 are respectively electrically connected to the input ends of the constant temperature barrel 3, the first motor 6, and the drying box 35.
[0028] Among them, on the lower surface of the movable frame 4, a placement plate 13 located inside the constant temperature barrel 3 is fixedly connected. On the upper surface of the placement plate 13, a placement rack 14 is fixedly connected. At the bottom end of the inner surface of the constant temperature barrel 3, a liquid valve 15 is fixedly connected. The bottom end of the liquid valve 15 penetrates through the constant temperature barrel 3 and extends below the constant temperature barrel 3 and is fixedly connected to a waste discharge pipe 16. The bottom end of the waste discharge pipe 16 sequentially penetrates through the test bench 2 and the base 1 and extends below the base 1.
[0029] The placement rack 14 is used to place the tripod wire basket containing the sand and gravel samples, and the liquid valve 15 can discharge the waste liquid inside the constant temperature barrel 3.
[0030] Among them, a liquid pump 17 is fixedly connected to the left surface of the inspection table 2. A liquid inlet pipe 18 is fixedly connected to the right surface of the liquid pump 17. The right end of the liquid inlet pipe 18 sequentially penetrates through the inspection table 2 and the constant temperature barrel 3 and extends to the inside of the constant temperature barrel 3. The outer surface of the liquid inlet pipe 18 and the inner surface of the constant temperature barrel 3 are fixedly sleeved. An inlet liquid pipe 19 is fixedly connected to the outer surface of the liquid pump 17. The other end of the inlet liquid pipe 19 is fixedly connected to a communication box 20. The outer surface of the communication box 20 is fixedly connected to the inspection table 2.
[0031] The operation of the liquid pump 17 can extract the sodium sulfate reagent or pure water inside the communication box 20 through the inlet liquid pipe 19, and inject these liquids into the inside of the constant temperature barrel 3 through the liquid inlet pipe 18.
[0032] Among them, a closing plate 21 is movably connected to the inner surface of the communication box 20. Limit blocks 22 located on the left and right sides of the closing plate 21 are fixedly connected to the inner surface of the communication box 20. A movable rod 23 is fixedly connected to the left surface of the closing plate 21. The outer end of the movable rod 23 penetrates through the communication box 20 and extends to the outside of the communication box 20 and is fixedly connected to a toothed plate 24. The outer surface of the toothed plate 24 is movably connected to a limit plate 25. The limit plate 25 is fixedly connected to the outer surface of the inspection table 2.
[0033] The closing plate 21 and the toothed plate 24 as a whole can move left and right along the inner surface of the communication box 20, so as to control the sodium sulfate reagent or pure water from entering the inlet liquid pipe 19.
[0034] Among them, a second motor 26 is fixedly installed on the outer surface of the inspection table 2 above the toothed plate 24. The other end of the output shaft of the second motor 26 is fixedly sleeved with a second circular shaft 27. The other end of the second circular shaft 27 is fixedly connected to a gear 28. The outer surface of the gear 28 is meshed with the outer surface of the toothed plate 24.
[0035] When the second motor 26 operates, the second circular shaft 27 and the gear 28 will start to rotate. The input end of the second motor 26 is electrically connected to the output end of the control console 37.
[0036] Among them, the rear side of the upper surface of the base 1 is fixedly connected with a pure water bucket 29. The bottom end of the inner surface of the pure water bucket 29 is fixedly sleeved with a first connecting pipe 30. The other end of the first connecting pipe 30 sequentially penetrates through the pure water bucket 29 and the connecting box 20 and extends into the interior of the connecting box 20. The upper surface of the base 1 is fixedly connected with a saturated sodium sulfate reagent bucket 31 located on the right side of the pure water bucket 29. The bottom end of the inner surface of the saturated sodium sulfate reagent bucket 31 is fixedly sleeved with a second connecting pipe 32. The other end of the second connecting pipe 32 sequentially penetrates through the saturated sodium sulfate reagent bucket 31 and the connecting box 20 and extends into the interior of the connecting box 20. The outer surfaces of the first connecting pipe 30 and the second connecting pipe 32 are both fixedly sleeved with the inner surface of the connecting box 20.
[0037] The liquids inside the pure water bucket 29 and the saturated sodium sulfate reagent bucket 31 can enter the interior of the connecting box 20 through the first connecting pipe 30 and the second connecting pipe 32 respectively.
[0038] The working principle and usage process of the present utility model:
[0039] First of all, the operator first places the three-legged wire basket containing the sand sample inside the placement rack 14, and then starts the control console 37. As the control console 37 runs, the second motor 26 will be started under the control of the control console 37. Among them, the operation of the second motor 26 will cause the second circular shaft 27 and the gear 28 to start rotating, and the rotation of the gear 28 will drive the toothed plate 24 and the sealing plate 21 as a whole to start moving to the left. When the sealing plate 21 moves to the left side of the liquid inlet pipe 19, the liquid pump 17 and the constant temperature barrel 3 will be started under the control of the control console 37. Among them, the operation of the liquid pump 17 will cause the saturated sodium sulfate solution inside the saturated sodium sulfate reagent bucket 31 to enter the liquid pump 17 through the second connecting pipe 32, the connecting box 20, and the liquid inlet pipe 19, and then be injected into the interior of the constant temperature barrel 3 through the liquid inlet pipe 18 until the interior of the constant temperature barrel 3 is injected with a preset amount of saturated sodium sulfate solution. The operation of the constant temperature barrel 3 will keep the temperature of the solution inside the constant temperature barrel 3 at 25 degrees Celsius all the time.
[0040] Then the first motor 6 will be started under the control of the control console 37. As the first motor 6 runs, the double-threaded lead screw 7 will start rotating. At this time, the two moving blocks 8 will start moving towards each other under the drive of the double-threaded lead screw 7, and the movement of the moving blocks 8 will drive the first connecting rod 9 to make the first connecting rod 9 start rotating. At the same time, the rotation of the first connecting rod 9 will cause the second connecting rod 10 to rotate, and the rotation of the second connecting rod 10 will drive the third connecting rod 11 to start rotating. Finally, the other end of the third connecting rod 11 will drive the moving frame 4 and the placement plate 13 as a whole to start moving downward until the placement rack 14 and the three-legged wire basket are immersed in the saturated sodium sulfate solution and start soaking.
[0041] When the soaking timing ends, the first motor 6 will be started again by the console 37, causing the moving frame 4 and the placement plate 13 as a whole to start moving upward. When the placement plate 13 touches the lower surface of the drying oven 35, the drying oven 35 will be started under the control of the console 37 and start drying the soaked sand sample until the drying timing ends. Thus, one soaking and drying process is completed.
[0042] Under the control of the console 37, after five soaking and drying processes are completed, the liquid inlet pipe 19 will be started again to return the solution inside the constant temperature barrel 3 to the saturated sodium sulfate reagent barrel 31 for recycling. Subsequently, the second motor 26 will also be started again to move the closing plate 21 to the right and finally block the right end of the communication box 20. At this time, the liquid inlet pipe 19 runs again to make the water inside the pure water barrel 29 enter the inside of the constant temperature barrel 3. Then, the first motor 6 will run again, causing the dried sand sample to enter the inside of the constant temperature barrel 3 again and thus be washed by the pure water. After the washing is completed, the placement rack 14 and the three-legged wire basket containing the sample will move between the inspection table 2 and the drying oven 35, waiting for the operator to collect them.
[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A test device for the soundness of concrete sand and gravel, comprising a base (1), characterized in that: On the left side of the upper surface of the base (1), an inspection table (2) is fixedly connected. Inside the right surface of the inspection table (2), a constant temperature barrel (3) is fixedly installed. On the right side of the upper surface of the inspection table (2), a moving frame (4) is movably connected. On the front and rear sides of the right surface of the inspection table (2), mounting blocks (5) are fixedly connected. On the upper side of the front surface of the mounting block (5), a limiting rod (12) is fixedly connected. On the front surface of the mounting block (5), a first motor (6) is fixedly installed below the limiting rod (12). At the other end of the output shaft of the first motor (6), a double-threaded lead screw (7) is fixedly sleeved. The rear ends of the double-threaded lead screw (7) and the limiting rod (12) both penetrate through the mounting block (5) and extend to the rear side of the mounting block (5). On the outer surface of the double-threaded lead screw (7), a moving block (8) is threadedly sleeved inside the mounting block (5). The inner surface of the moving block (8) and the outer surface of the limiting rod (12) are movably sleeved. On the upper side of the outer surface of the moving block (8), a first connecting rod (9) is hinged. At the other end of the first connecting rod (9), a second connecting rod (10) is hinged. At the other end of the second connecting rod (10), a third connecting rod (11) is hinged. At the other end of the third connecting rod (11), it is hinged to the right surface of the moving frame (4).
2. The concrete sand and gravel soundness test device according to claim 1, characterized in that: On the upper surface of the inspection table (2), a control console (37) is fixedly connected on the left side of the constant temperature barrel (3). On the upper surface of the inspection table (2), a top rod (33) is fixedly connected. On the upper surface of the top rod (33), a top plate (34) is fixedly connected. On the right side of the upper surface of the inspection table (2), a fixed rod (36) is fixedly connected. The top end of the fixed rod (36) sequentially penetrates through the moving frame (4) and the top plate (34) and extends above the top plate (34). The outer surface of the fixed rod (36) and the inner surface of the moving frame (4) are movably sleeved. Inside the top plate (34), a drying box (35) is fixedly installed directly above the constant temperature barrel (3).
3. The concrete sand and gravel soundness test device according to claim 1, wherein: On the lower surface of the moving frame (4), a placement plate (13) is fixedly connected inside the constant temperature barrel (3). On the upper surface of the placement plate (13), a placement rack (14) is fixedly connected. At the bottom end of the inner surface of the constant temperature barrel (3), a liquid valve (15) is fixedly connected. The bottom end of the liquid valve (15) penetrates through the constant temperature barrel (3) and extends below the constant temperature barrel (3) and is fixedly connected to a waste discharge pipe (16). The bottom end of the waste discharge pipe (16) sequentially penetrates through the inspection table (2) and the base (1) and extends below the base (1).
4. The concrete sand and gravel soundness test device according to claim 1, characterized in that: A liquid pump (17) is fixedly connected to the left surface of the inspection table (2). A liquid inlet pipe (18) is fixedly connected to the right surface of the liquid pump (17). The right end of the liquid inlet pipe (18) sequentially penetrates through the inspection table (2) and the constant temperature barrel (3) and extends into the interior of the constant temperature barrel (3). The outer surface of the liquid inlet pipe (18) and the inner surface of the constant temperature barrel (3) are fixedly sleeved. A liquid inlet pipe (19) is fixedly connected to the outer surface of the liquid pump (17). The other end of the liquid inlet pipe (19) is fixedly connected to a communication box (20). The outer surface of the communication box (20) is fixedly connected to the inspection table (2).
5. An apparatus for testing the soundness of concrete sand and gravel according to claim 4, characterized in that: A closing plate (21) is movably connected to the inner surface of the communication box (20). Limit blocks (22) located on the left and right sides of the closing plate (21) are fixedly connected to the inner surface of the communication box (20). A movable rod (23) is fixedly connected to the left surface of the closing plate (21). The outer end of the movable rod (23) penetrates through the communication box (20) and extends to the outside of the communication box (20) and is fixedly connected to a toothed plate (24). A limiting plate (25) is movably connected to the outer surface of the toothed plate (24). The limiting plate (25) is fixedly connected to the outer surface of the inspection table (2).
6. The concrete sand and gravel soundness test device according to claim 1, characterized in that: A second motor (26) is fixedly installed on the outer surface of the inspection table (2) above the toothed plate (24). The other end of the output shaft of the second motor (26) is fixedly sleeved with a second circular shaft (27). The other end of the second circular shaft (27) is fixedly connected to a gear (28). The outer surface of the gear (28) is meshed with the outer surface of the toothed plate (24).
7. The concrete sand and gravel soundness test device according to claim 1, characterized in that: A pure water bucket (29) is fixedly connected to the rear side of the upper surface of the base (1). A first connecting pipe (30) is fixedly sleeved at the bottom end of the inner surface of the pure water bucket (29). The other end of the first connecting pipe (30) sequentially penetrates through the pure water bucket (29) and the communication box (20) and extends into the interior of the communication box (20). A saturated sodium sulfate reagent bucket (31) is fixedly connected to the upper surface of the base (1) on the right side of the pure water bucket (29). A second connecting pipe (32) is fixedly sleeved at the bottom end of the inner surface of the saturated sodium sulfate reagent bucket (31). The other end of the second connecting pipe (32) sequentially penetrates through the saturated sodium sulfate reagent bucket (31) and the communication box (20) and extends into the interior of the communication box (20). The outer surfaces of the first connecting pipe (30) and the second connecting pipe (32) are both fixedly sleeved with the inner surface of the communication box (20).