Road cement compressive strength detection device

Abstract

The invention relates to the technical field of cement detection, and discloses a road cement compressive strength detection device which comprises a device body, a sealing cover is fixedly connected to the middle of the device body, a sealing door is rotatably connected to one side of the sealing cover, and a support is arranged on one side of the device body. One side of the support is sequentially connected with an air exhaust assembly, an air supply assembly, a refrigeration assembly, a heating assembly and a humidification assembly from top to bottom, the bottom of the back side of the support is fixedly connected with a controller, the inner side of the sealing cover is fixedly connected with a sensor, and the sensor is electrically connected with the controller. According to the road cement compressive strength detection device, a multifunctional detection environment is constructed through mutual cooperation of a plurality of components, simulation of various extreme environments is realized, comprehensive detection conditions are provided for cement test blocks, various complex working conditions possibly encountered by cement in practical application are covered, and the detection efficiency is improved. Therefore, the compressive strength test of the cement is closer to an actual application scene.

Description

Technical Field

[0001] The invention relates to the technical field of cement detection, in particular to a highway cement compressive strength detection device. Background Art

[0002] In the construction and maintenance of highways, cement has become the mainstream building material due to its strength, durability and economic advantages. However, in actual applications, cement needs to withstand multiple pressures such as vehicle loads and natural erosion, so its compressive strength has become a key indicator to measure its quality. Compressive strength testing can not only ensure that cement materials meet relevant standards, but also provide important guarantees for the stability and durability of highway projects.

[0003] For example, in the prior art, the patent with the authorization announcement number CN212568207U discloses a highway cement mortar compressive strength detection device, which belongs to the field of highway maintenance and solves the problem of lack of special equipment for cement mortar strength verification test at highway maintenance sites. The device includes a pressurizing device and a measuring platform. The pressurizing device includes a positioning seat, a lower pressure plate and a pressure sensor. The pressure sensor is clamped in the card slot of the bottom end surface of the lower pressure plate. The lower pressure plate is connected to the driving wheel through a rotating rod, and the rotating rod is set at the center of the positioning seat; the measuring platform is set below the pressure sensor, and the measuring platform is clamped at the inner bottom end of the U-shaped base, and the upper surface of the U-shaped base is connected to the lower surface of the positioning seat; when the bottom end surface of the pressure sensor touches the cement mortar block, the lower pressure plate and the pressure sensor cannot rotate; after the cement mortar block placed above the measuring platform is crushed by pressure, the rotating rod stops rotating downward. The above device has low cost, small size, light weight, is easy to disassemble and install, and is very suitable for construction sites.

[0004] However, the above compressive strength testing device still has certain defects when used: When using the above-mentioned compressive strength testing device to perform compression testing on cement test blocks, testing can only be performed in a standard environment. It is impossible to test and evaluate the compressive performance of cement test blocks in non-standard environments or extreme environments. Relying solely on test results under standard environments, it is impossible to fully evaluate the performance of cement under actual use conditions, which may lead to overestimation or underestimation of cement performance. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a highway cement compressive strength testing device, which can provide different environments for cement compression testing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highway cement compressive strength detection device, including a device body, a sealing cover fixedly connected to the middle of the device body, a sealing door rotatably connected to one side of the sealing cover, a bracket is provided on one side of the device body, an exhaust component, an air supply component, a refrigeration component, a heating component and a humidification component are sequentially connected to one side of the bracket from top to bottom, a controller is fixedly connected to the bottom of the back side of the bracket, a sensor is fixedly connected to the inner side of the sealing cover, and the sensor and the controller are electrically connected.

[0007] Furthermore, the exhaust assembly includes an exhaust fan, an outlet pipe, a No. 1 connecting pipe, an exhaust pipe, a No. 1 valve and a No. 2 valve. The exhaust fan is fixedly connected to the top of the bracket, the air inlet end of the exhaust fan is fixedly connected to the outlet pipe, the air outlet end of the exhaust fan is fixedly connected to the No. 1 connecting pipe, the other end of the outlet pipe is fixedly connected to the top side wall of the sealing cover, the middle part of the No. 1 connecting pipe is fixedly connected to the exhaust pipe, the middle part of the exhaust pipe is fixedly connected to the No. 1 valve, the bottom of the No. 1 connecting pipe is connected to the air supply assembly, the bottom end of the No. 1 connecting pipe is fixedly connected to the No. 2 valve, the top of the No. 1 connecting pipe is fixedly connected to the No. 6 valve, and the exhaust fan and the controller are electrically connected.

[0008] Furthermore, the air supply component includes a hair dryer and a No. 2 connecting pipe. The hair dryer is fixedly connected to the upper part of the bracket and is located below the exhaust fan. The bottom end of the No. 1 connecting pipe is fixedly connected to the air inlet end of the hair dryer, and the air outlet end of the hair dryer is fixedly connected to the No. 2 connecting pipe. The bottom end of the No. 2 connecting pipe is connected to the refrigeration component, and the hair dryer is electrically connected to the controller.

[0009] Furthermore, the refrigeration component includes a cooling box, a semiconductor refrigeration plate, cooling fins, a heat dissipation fan, a No. 3 connecting pipe and heat-conducting fins. The cooling box is fixedly connected to the middle of the bracket, and a cooling chamber is opened in the cooling box. The bottom end of the No. 2 connecting pipe is fixedly connected to one side of the cooling box, and the No. 3 connecting pipe is fixedly connected to the other side of the cooling box. The inner wall of the cooling chamber is fixedly connected to the semiconductor refrigeration plate, one side of the semiconductor refrigeration plate is fixedly connected to a plurality of equidistantly arranged cooling fins, and the other side of the semiconductor refrigeration plate is fixedly connected to a plurality of equidistantly arranged heat-conducting fins. The bottom end of the No. 3 connecting pipe is connected to the heating component, and two heat dissipation fans are fixedly connected to one side of the cooling box close to the heat-conducting fins. The side wall of the cooling box is provided with two heat dissipation grooves corresponding to the positions of the heat-conducting fins, and the heat dissipation fan matches the position of the heat dissipation grooves. The outer wall of the cooling box is provided with a plurality of air inlets connected to the heat dissipation grooves, and the semiconductor refrigeration plate is electrically connected to the heat dissipation fan and the controller.

[0010] Furthermore, the heating component includes a heating box, a heating wire, a No. 4 connecting pipe, an air intake pipe, a No. 3 valve and a No. 4 valve. The heating box is fixedly connected to the lower part of the bracket. A heating chamber is opened in the heating box. A plurality of heating wires are fixedly connected in the heating chamber. The heating wires are electrically connected to the controller. One side of the heating box is connected to the No. 3 connecting pipe, and the other side of the heating box is fixedly connected to the No. 4 connecting pipe. The No. 4 connecting pipe is fixedly connected to the No. 3 valve and the No. 4 valve from top to bottom in sequence. The air intake pipe is fixedly connected between the No. 3 valve and the No. 4 valve. The other end of the air intake pipe is fixedly connected to the outer wall of the bottom of the sealing cover, and the bottom end of the No. 4 connecting pipe is connected to the humidification component.

[0011] Furthermore, the humidification component includes a humidification box, a drain outlet, a water inlet and a sealing cover. The humidification box is fixedly connected to the bottom of the bracket, a humidification chamber is opened in the humidification box, one side of the humidification box is fixedly connected to the bottom end of the No. 4 connecting pipe, the other side of the humidification box is fixedly connected to the No. 5 connecting pipe, the other end of the No. 5 connecting pipe is fixedly connected to the middle of the air inlet pipe, the middle of the No. 5 connecting pipe is fixedly connected to the No. 5 valve, one side of the bottom of the humidification box is fixedly connected to the water inlet, one side of the top of the humidification box is fixedly connected to the water inlet, the outer walls of the drain outlet and the water inlet are threadedly connected with sealing covers, the middle of the air inlet pipe is fixedly connected to the No. 7 valve, and the No. 7 valve is located between the No. 5 connecting pipe and the No. 4 connecting pipe.

[0012] Furthermore, a porous water-absorbing block is fixedly connected in the humidification chamber.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This highway cement compressive strength testing device, through the cooperation of multiple components, jointly constructs a multifunctional testing environment, realizes the simulation of various extreme environments, provides comprehensive testing conditions for cement test blocks, and covers various complex working conditions that cement may encounter in actual applications, thereby making the compressive strength test of cement closer to the actual application scenario, thereby improving the accuracy and reliability of the test and ensuring the practical value of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the air extraction component, the air supply component and the refrigeration component of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the refrigeration assembly of the present invention; Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the refrigeration component of the present invention; Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the heating component of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the humidification component of the present invention; Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the humidification box and the porous water-absorbing block of the present invention; Figure 8 for Figure 1 A schematic diagram of the enlarged three-dimensional structure at A above; Fig. 9 for Figure 1 Schematic diagram of the enlarged three-dimensional structure at point B above.

[0015] In the figure: 1. Device body; 2. Sealing cover; 3. Sealing door; 4. Sensor; 5. Bracket; 6. Blower; 7. Heating box; 8. Heating chamber; 9. Heating wire; 10. Exhaust pipe; 11. Inlet pipe; 12. Exhaust fan; 13. No. 1 connecting pipe; 14. Exhaust pipe; 15. No. 1 valve; 16. No. 2 valve; 17. Cooling box; 18. Cooling chamber; 19. Semiconductor refrigeration plate; 20. Refrigeration fins; 21. Cooling fan ; 22. Air inlet; 23. Connecting pipe No. 2; 24. Connecting pipe No. 3; 25. Humidifier box; 26. Humidifier chamber; 27. Porous water absorbent block; 28. Drain outlet; 29. ​​Water inlet; 30. Sealing cover; 31. Connecting pipe No. 4; 32. Valve No. 3; 33. Valve No. 4; 34. Connecting pipe No. 5; 35. Valve No. 5; 36. Controller; 37. Valve No. 6; 38. Valve No. 7; 39. Heat sink; 40. Thermal fins. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] See also Figures 1 to 9 A highway cement compressive strength detection device includes a device body 1, a sealing cover 2 is fixedly connected to the middle of the device body 1, a sealing door 3 is rotatably connected to one side of the sealing cover 2, a bracket 5 is arranged on one side of the device body 1, an exhaust component, an air supply component, a refrigeration component, a heating component and a humidification component are sequentially connected to one side of the bracket 5 from top to bottom, a controller 36 is fixedly connected to the bottom of the back side of the bracket 5, a sensor 4 is fixedly connected to the inner side of the sealing cover 2, and the sensor 4 and the controller 36 are electrically connected.

[0018] As a preferred technical solution of the present invention, the exhaust component includes an exhaust fan 12, an outlet pipe 10, a No. 1 connecting pipe 13, an exhaust pipe 14, a No. 1 valve 15 and a No. 2 valve 16. The exhaust fan 12 is fixedly connected to the top of the bracket 5, the air inlet end of the exhaust fan 12 is fixedly connected to the outlet pipe 10, the air outlet end of the exhaust fan 12 is fixedly connected to the No. 1 connecting pipe 13, the other end of the outlet pipe 10 is fixedly connected to the top side wall of the sealing cover 2, the middle part of the No. 1 connecting pipe 13 is fixedly connected to the exhaust pipe 14, the middle part of the exhaust pipe 14 is fixedly connected to the No. 1 valve 15, the bottom of the No. 1 connecting pipe 13 is connected to the air supply component, the bottom end of the No. 1 connecting pipe 13 is fixedly connected to the No. 2 valve 16, the top of the No. 1 connecting pipe 13 is fixedly connected to the No. 6 valve 37, and the exhaust fan 12 and the controller 36 are electrically connected.

[0019] As a preferred technical solution of the present invention, the air supply component includes a hair dryer 6 and a No. 2 connecting pipe 23. The hair dryer 6 is fixedly connected to the upper part of the bracket 5, and the hair dryer 6 is located below the exhaust fan 12. The bottom end of the No. 1 connecting pipe 13 is fixedly connected to the air inlet end of the hair dryer 6, and the air outlet end of the hair dryer 6 is fixedly connected to the No. 2 connecting pipe 23. The bottom end of the No. 2 connecting pipe 23 is connected to the refrigeration component, and the hair dryer 6 is electrically connected to the controller 36.

[0020] As a preferred technical solution of the present invention, the refrigeration assembly includes a cooling box 17, a semiconductor refrigeration plate 19, a refrigeration fin 20, a heat dissipation fan 21, a No. 3 connecting pipe 24 and a heat conducting fin 40. The middle part of the bracket 5 is fixedly connected with the cooling box 17, and a cooling chamber 18 is provided in the cooling box 17. The bottom end of the No. 2 connecting pipe 23 is fixedly connected to one side of the cooling box 17, and the other side of the cooling box 17 is fixedly connected to the No. 3 connecting pipe 24. The inner wall of the cooling chamber 18 is fixedly connected to the semiconductor refrigeration plate 19, and one side of the semiconductor refrigeration plate 19 is fixedly connected to a plurality of equidistantly arranged refrigeration Fins 20, a plurality of equidistantly arranged heat-conducting fins 40 are fixedly connected to the other side of the semiconductor refrigeration plate 19, the bottom end of the No. 3 connecting pipe 24 is connected to the heating component, and two cooling fans 21 are fixedly connected to the side of the cooling box 17 close to the heat-conducting fins 40. The side wall of the cooling box 17 is provided with two heat dissipation grooves 39 corresponding to the positions of the heat-conducting fins 40, and the positions of the cooling fans 21 and the heat dissipation grooves 39 match. The outer wall of the cooling box 17 is provided with a plurality of air inlets 22 connected to the heat dissipation grooves 39, and the semiconductor refrigeration plate 19 is electrically connected to the cooling fan 21 and the controller 36.

[0021] As a preferred technical solution of the present invention, the heating component includes a heating box 7, a heating wire 9, a No. 4 connecting pipe 31, an air intake pipe 11, a No. 3 valve 32 and a No. 4 valve 33. The lower part of the bracket 5 is fixedly connected to the heating box 7, a heating chamber 8 is opened in the heating box 7, and a plurality of heating wires 9 are fixedly connected in the heating chamber 8. The heating wires 9 are electrically connected to the controller 36. One side of the heating box 7 is connected to the No. 3 connecting pipe 24, and the other side of the heating box 7 is fixedly connected to the No. 4 connecting pipe 31. The No. 4 connecting pipe 31 is fixedly connected with the No. 3 valve 32 and the No. 4 valve 33 from top to bottom in sequence. The air intake pipe 11 is fixedly connected between the No. 3 valve 32 and the No. 4 valve 33. The other end of the air intake pipe 11 is fixedly connected to the bottom outer wall of the sealing cover 2, and the bottom end of the No. 4 connecting pipe 31 is connected to the humidification component.

[0022] As a preferred technical solution of the present invention, the humidification component includes a humidification box 25, a drain port 28, a water inlet 29 and a sealing cover 30. The humidification box 25 is fixedly connected to the bottom of the bracket 5, and a humidification chamber 26 is opened in the humidification box 25. One side of the humidification box 25 is fixedly connected to the bottom end of the No. 4 connecting pipe 31, and the other side of the humidification box 25 is fixedly connected to the No. 5 connecting pipe 34. The other end of the No. 5 connecting pipe 34 is fixedly connected to the middle of the air inlet pipe 11, and the middle of the No. 5 connecting pipe 34 is fixedly connected to the No. 5 valve 35. The bottom side of the humidification box 25 is fixedly connected to the drain port 28, and the top side of the humidification box 25 is fixedly connected to the water inlet 29. The outer walls of the drain port 28 and the water inlet 29 are both threadedly connected to the sealing cover 30. The middle of the air inlet pipe 11 is fixedly connected to the No. 7 valve 38, and the No. 7 valve 38 is located between the No. 5 connecting pipe 34 and the No. 4 connecting pipe 31.

[0023] As a preferred technical solution of the present invention, a porous water-absorbing block 27 is fixedly connected to the humidification chamber 26 .

[0024] The working principle of the present invention is as follows: When it is necessary to test cement under standard environment, open the sealing door 3, put the test block into the device body 1, close the sealing door 3, and then the compression test of the cement test block can be carried out; When it is necessary to test under high temperature environment, valve No. 15, valve No. 4 33 and valve No. 5 35 are closed, valve No. 2 16, valve No. 3 32, valve No. 6 37 and valve No. 7 38 are opened, and then controller 36 controls exhaust fan 12, blower 6 and heating wire 9 to be turned on, and semiconductor refrigeration plate 19 and heat dissipation fan 21 are turned off. At this time, exhaust fan 12 will extract air in sealing cover 2 through air outlet pipe 10, and send it into blower 6 through connecting pipe No. 1 13, and blower 6 will send it into heating chamber 8 through connecting pipe No. 2 23, cooling chamber 18 and connecting pipe No. 3 24. At this time, conductive heating wire 9 will heat up and heat the air passing through. The heated air will enter into air inlet pipe 11 through connecting pipe No. 4 31, and then enter into sealing cover 2 through air inlet pipe 11. After the air in sealing cover 2 undergoes the above-mentioned heating cycles for many times, the temperature inside sealing cover 2 can be raised to the temperature to be tested, and the cement test block can be subjected to compression test under high temperature environment. When it is necessary to test in a low temperature environment, valve No. 15, valve No. 4 33 and valve No. 5 35 are closed, valve No. 2 16, valve No. 32, valve No. 6 37 and valve No. 7 38 are opened, and then the controller 36 controls the exhaust fan 12, the blower 6, the semiconductor refrigeration plate 19 and the cooling fan 21 to turn on, and the heating wire 9 is turned off. At this time, when the air flows through the cooling chamber 18, heat exchange occurs between the cooling fins 20. Since the semiconductor refrigeration plate 19 is conductive, it will drive the cooling fins 20 to cool down, thereby making the cooling fins 20 cool down. When the air flows through the cooling fins 20, the temperature is reduced. At the same time, during the operation of the semiconductor refrigeration plate 19, the heat dissipation fan 21 draws the outside air from the air inlet 22 into the heat dissipation slot 39, flows through the heat-conducting fins 40, and is then directly discharged by the heat dissipation fan 21, thereby dissipating the heat of the heat-conducting fins 40, ensuring that the heat generated during the operation of the semiconductor refrigeration plate 19 is discharged in time. After multiple cooling cycles, the temperature inside the sealing cover 2 can be reduced to the temperature to be tested, and the cement test block can be subjected to a compression test in a low-temperature environment; When it is necessary to test under high pressure environment, valve No. 4 33, valve No. 5 35 and valve No. 6 37 are closed, valve No. 1 15, valve No. 2 16, valve No. 32 and valve No. 7 38 are opened, controller 36 controls blower 6 to open, exhaust fan 12, semiconductor refrigeration plate 19, heat dissipation fan 21 and heating wire 9 are closed, blower 6 will draw air from the outside through exhaust pipe 14 at this time, after air enters into sealing cover 2, since valve No. 6 37 is closed, air will stay in sealing cover 2, as air in sealing cover 2 increases continuously, until the air pressure inside sealing cover 2 reaches the air pressure to be tested, then the compression resistance test of cement test block under high pressure environment can be carried out; When it is necessary to test under low pressure environment, valve No. 2 16, valve No. 32, valve No. 4 33, valve No. 5 35 and valve No. 7 38 are closed, valve No. 1 15 and valve No. 6 37 are opened, controller 36 controls exhaust fan 12 to open, blower 6, semiconductor refrigeration plate 19, heat dissipation fan 21 and heating wire 9 are closed, and exhaust fan 12 will continuously extract the air in sealing cover 2 to the outside, because the gas in sealing cover 2 cannot be replenished, as the air in sealing cover 2 is continuously reduced, until the air pressure inside sealing cover 2 drops to the air pressure to be tested, the cement test block can be subjected to compression test under low pressure environment; When it is necessary to test in a dry environment, the interior of the humidifying box 25 is empty, leaving only the porous water-absorbing block 27, the No. 1 valve 15 and the No. 7 valve 38 are closed, the No. 2 valve 16, the No. 3 valve 32, the No. 4 valve 33, the No. 5 valve 35 and the No. 6 valve 37 are opened, the controller 36 controls the exhaust fan 12 and the blower 6 to open, and the semiconductor refrigeration plate 19, the heat dissipation fan 21 and the heating wire 9 are closed. At this time, driven by the exhaust fan 12 and the blower 6, the air in the sealing cover 2 will undergo an air circulation through the humidifying chamber 26 and the No. 5 connecting pipe 34. During the air circulation process, the porous water-absorbing block 27 in the humidifying box 25 will absorb the moisture in the air, thereby reducing the moisture content in the air as much as possible, so that the air humidity in the sealing cover 2 gradually decreases until the humidity inside the sealing cover 2 drops to the humidity to be tested, and then the cement test block can be subjected to a compression test in a dry environment; When it is necessary to test in a humid environment, water is added to the humidifying box 25 through the water inlet 29. At this time, the porous water-absorbing block 27 absorbs water and becomes moist, the No. 1 valve 15 and the No. 7 valve 38 are closed, the No. 2 valve 16, the No. 3 valve 32, the No. 4 valve 33, the No. 5 valve 35 and the No. 6 valve 37 are opened, the controller 36 controls the exhaust fan 12 and the blower 6 to be turned on, and the semiconductor refrigeration plate 19, the heat dissipation fan 21 and the heating wire 9 are turned off. At this time, driven by the exhaust fan 12 and the blower 6, the air in the sealing cover 2 will take away the moisture on the porous water-absorbing block 27 when flowing through the porous water-absorbing block 27, thereby increasing the air humidity in the sealing cover 2 until the humidity inside the sealing cover 2 rises to the humidity to be tested, and then the cement test block can be subjected to a compression test in a humid environment; The above-mentioned tests under different temperatures, different air pressures and different humidities can be combined to realize pressure resistance testing in complex environments, such as high temperature, high pressure and humid environment (add water to the humidifying box 25, close the No. 1 valve 15 and the No. 7 valve 38, open the other valves, open the exhaust fan 12, the blower 6 and the heating wire 9, and the others are closed to form a high temperature, high pressure and humid environment) or a high temperature, low pressure and dry environment (the humidifying box 25 is empty, first close the No. 1 valve 15, the No. 4 valve 33 and the No. 7 valve 38, open the No. 2 valve 16, the No. 3 valve 32, the No. 5 valve 35 and the No. 6 valve 37, open the exhaust fan 12, the blower 6 and the heating wire 9, and the semiconductor refrigeration plate 19 and the cooling fan 21. At this time, the temperature inside the sealing cover 2 rises rapidly and enters a high temperature and dry environment first, then close the No. 2 valve 6, the No. 3 valve 32, the No. 5 valve 35 and the No. 7 valve 38, open the No. 1 valve 15 With the No. 6 valve 37, keep the exhaust fan 12, the hair dryer 6 and the heating wire 9 open, at this time the internal air pressure of the sealing cover 2 is reduced, and a high-temperature, dry and low-pressure environment can be entered) and so on.

[0025] The highway cement compressive strength testing device in the present invention, by using the mutual cooperation of multiple components, jointly constructs a multifunctional testing environment, realizes the simulation of various extreme environments, provides comprehensive testing conditions for cement test blocks, and covers various complex working conditions that cement may encounter in actual applications, so that the compressive strength test of cement is closer to the actual application scenario, thereby improving the accuracy and reliability of the test and ensuring the practical value of the test results.

[0026] It is worth noting that the sensor 4 includes temperature sensing, air pressure sensing and humidity sensing modules, etc., which can detect various parameters in the sealing cover 2, thereby providing researchers with accurate environmental data and achieving better environmental control; the above-mentioned valves can all use solenoid valves. By connecting the solenoid valves with the controller 36 and the terminal, researchers can switch the required test environment with one click without manually opening and closing the valves.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road cement compressive strength testing device, comprising a device body (1), characterized in that: A sealing cover (2) is fixedly connected to the middle of the device body (1), and a sealing door (3) is rotatably connected to one side of the sealing cover (2). A bracket (5) is provided on one side of the device body (1), and an air extraction component, an air supply component, a refrigeration component, a heating component and a humidification component are sequentially connected to one side of the bracket (5) from top to bottom. A controller (36) is fixedly connected to the bottom of the back side of the bracket (5), and a sensor (4) is fixedly connected to the inner side of the sealing cover (2), and the sensor (4) and the controller (36) are electrically connected.

2. A road cement compressive strength testing device according to claim 1, characterized in that: The exhaust assembly comprises an exhaust fan (12), an exhaust pipe (10), a No. 1 connecting pipe (13), an exhaust pipe (14), a No. 1 valve (15) and a No. 2 valve (16); the exhaust fan (12) is fixedly connected to the top of the bracket (5); the air inlet end of the exhaust fan (12) is fixedly connected to the exhaust pipe (10); the air outlet end of the exhaust fan (12) is fixedly connected to the No. 1 connecting pipe (13); the other end of the exhaust pipe (10) is fixedly connected to the top side wall of the sealing cover (2); the middle of the No. 1 connecting pipe (13) is fixedly connected to the exhaust pipe (14); the middle of the exhaust pipe (14) is fixedly connected to the No. 1 valve (15); the bottom of the No. 1 connecting pipe (13) is connected to the air supply assembly; the bottom end of the No. 1 connecting pipe (13) is fixedly connected to the No. 2 valve (16); the top of the No. 1 connecting pipe (13) is fixedly connected to the No. 6 valve (37); and the exhaust fan (12) and the controller (36) are electrically connected.

3. A road cement compressive strength testing device according to claim 2, characterized in that: The air supply component comprises a hair dryer (6) and a second connecting pipe (23); the hair dryer (6) is fixedly connected to the upper part of the bracket (5); the hair dryer (6) is located below the exhaust fan (12); the bottom end of the first connecting pipe (13) is fixedly connected to the air inlet end of the hair dryer (6); the air outlet end of the hair dryer (6) is fixedly connected to the second connecting pipe (23); the bottom end of the second connecting pipe (23) is connected to the refrigeration component; and the hair dryer (6) is electrically connected to the controller (36).

4. A road cement compressive strength testing device according to claim 3, characterized in that: The refrigeration assembly comprises a cooling box (17), a semiconductor refrigeration plate (19), refrigeration fins (20), a heat dissipation fan (21), a third connecting pipe (24) and a heat conducting fin (40); the cooling box (17) is fixedly connected to the middle of the bracket (5); a cooling chamber (18) is provided in the cooling box (17); the bottom end of the second connecting pipe (23) is fixedly connected to one side of the cooling box (17); the other side of the cooling box (17) is fixedly connected to the third connecting pipe (24); the inner wall of the cooling chamber (18) is fixedly connected to the semiconductor refrigeration plate (19); one side of the semiconductor refrigeration plate (19) is fixedly connected to a plurality of equidistantly arranged refrigeration fins (20); A plurality of equidistantly arranged heat-conducting fins (40) are fixedly connected to the other side of the semiconductor refrigeration plate (19); the bottom end of the No. 3 connecting pipe (24) is connected to the heating component; two heat-dissipating fans (21) are fixedly connected to the side of the cooling box (17) close to the heat-conducting fins (40); the side wall of the cooling box (17) is provided with two heat-dissipating grooves (39) corresponding to the positions of the heat-conducting fins (40); the positions of the heat-dissipating fans (21) and the heat-dissipating grooves (39) are matched; the outer wall of the cooling box (17) is provided with a plurality of air inlets (22) connected to the heat-dissipating grooves (39); and the semiconductor refrigeration plate (19) is electrically connected to the heat-dissipating fans (21) and the controller (36).

5. A road cement compressive strength testing device according to claim 4, characterized in that: The heating component comprises a heating box (7), a heating wire (9), a No. 4 connecting pipe (31), an air intake pipe (11), a No. 3 valve (32) and a No. 4 valve (33); the lower part of the bracket (5) is fixedly connected with the heating box (7); a heating chamber (8) is provided in the heating box (7); a plurality of heating wires (9) are fixedly connected in the heating chamber (8); the heating wires (9) are electrically connected to a controller (36); one side of the heating box (7) is connected to the No. 3 connecting pipe (24); the other side of the heating box (7) is fixedly connected to the No. 4 connecting pipe (31); the No. 3 valve (32) and the No. 4 valve (33) are fixedly connected to the No. 4 connecting pipe (31) in sequence from top to bottom; the No. 3 valve (32) and the No. 4 valve (33) are fixedly connected with the air intake pipe (11); the other end of the air intake pipe (11) is fixedly connected to the outer wall of the bottom of the sealing cover (2); and the bottom end of the No. 4 connecting pipe (31) is connected to a humidifying component.

6. A road cement compressive strength testing device according to claim 5, characterized in that: The humidifying assembly comprises a humidifying box (25), a water outlet (28), a water inlet (29) and a sealing cover (30); the humidifying box (25) is fixedly connected to the bottom of the bracket (5); a humidifying chamber (26) is provided in the humidifying box (25); one side of the humidifying box (25) is fixedly connected to the bottom end of a No. 4 connecting pipe (31); the other side of the humidifying box (25) is fixedly connected to a No. 5 connecting pipe (34); the other end of the No. 5 connecting pipe (34) is fixedly connected to the middle of the air inlet pipe (11); A No. 5 valve (35) is fixedly connected to the middle of the No. 5 connecting pipe (34), a drain port (28) is fixedly connected to one side of the bottom of the humidifying box (25), a water inlet (29) is fixedly connected to one side of the top of the humidifying box (25), and a sealing cover (30) is threadedly connected to the outer walls of the drain port (28) and the water inlet (29), and a No. 7 valve (38) is fixedly connected to the middle of the air inlet pipe (11), and the No. 7 valve (38) is located between the No. 5 connecting pipe (34) and the No. 4 connecting pipe (31).

7. A road cement compressive strength testing device according to claim 6, characterized in that: A porous water-absorbing block (27) is fixedly connected inside the humidification chamber (26).

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