Heat conduction detection equipment for admixture concrete test piece

Abstract

The invention provides heat conduction detection equipment for an admixture concrete test piece, and belongs to the technical field of concrete detection.The heat conduction detection equipment comprises a base, a heat preservation shell is arranged on the upper surface of the base, a storage mechanism is arranged in the right side of the heat preservation shell, and the storage mechanism comprises a second threaded rod; the left end of the second threaded rod is rotationally installed in the base through a fixing plate, a second worm gear is arranged on the circumferential surface of the left end of the second threaded rod, a second moving block is in threaded connection with the circumferential surface of the second threaded rod, and a storage plate is arranged at the right end of the upper surface of the second moving block. Through the arranged clamping and transferring mechanism, in an experiment, after an admixture concrete test piece is fixed to the left side of a sealing plate, the clamping and transferring mechanism can leftwards transfer the test piece to an experiment position in the heat preservation shell, and the situation that a user is scalded due to the fact that the temperature in the heat preservation shell is high or inconvenience is caused due to the fact that extra tools need to be used during manual placement is avoided; and the safety and the experiment efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete detection, and in particular relates to a thermal conduction detection device for an admixture concrete specimen. Background Art

[0002] Concrete is a widely used material in the construction industry. With the increasing complexity of building structures, while ensuring its stability, the requirements for functionality are also getting higher and higher. In recent years, the effect of adding silicon to concrete has been significantly improved. Compared with ordinary concrete, the main feature of concrete containing silica fume is that it has a uniform microstructure, which can greatly improve the performance of concrete and extend the service life of concrete.

[0003] There are very few experimental equipment for studying the thermodynamic properties of concrete. Although there are some heat conduction detection equipment, most of the existing equipment requires manual placement of concrete specimens into the equipment. During the operation of the equipment, the internal temperature is high. When replacing concrete specimens, additional tools are needed to take and place the specimens to avoid high temperature injuries to workers. The operation is not convenient and the practicality is poor.

[0004] Therefore, we propose a thermal conductivity detection device for admixture concrete specimens to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that most existing thermal conductivity detection equipment requires manual placement of concrete specimens into the equipment, and during the operation of the equipment, the internal temperature is high. When replacing the concrete specimen, additional tools are needed to take and place the specimen to avoid high temperature injury to the staff, the operation is not convenient, and the practicality is poor. A thermal conductivity detection device for admixture concrete specimens is proposed.

[0006] The object of the present invention can be achieved by the following technical scheme: comprising a base, an insulation shell is arranged on the upper surface of the base, a storage mechanism is arranged inside the right side of the insulation shell, the storage mechanism comprises two threaded rods, and the left end of the two threaded rods is rotatably installed inside the base through a fixed plate, a worm gear is arranged on the circumferential surface of the left end of the two threaded rods, a moving block is threadedly connected to the circumferential surface of the two threaded rods, a storage plate is arranged on the right end of the upper surface of the two moving blocks, a rotating plate is rotatably installed inside the left end of the storage plate through a rotating rod, a sealing plate is arranged on the upper end of the rotating plate, and a clamping and transferring mechanism is arranged inside the sealing plate;

[0007] The clamping and transferring mechanism includes a rotating shaft 2, and the rotating shaft 2 is rotatably installed in the middle of the right inner side of the sealing plate. A protrusion is arranged on the circumferential surface of the right side of the rotating shaft 2, and there are four protrusions. One end of each of the four protrusions abuts against an L-shaped clamping plate. The four groups of L-shaped clamping plates clamp the admixture concrete specimen in the left inner side. A spring 1 is arranged in the middle of the four edges of the sealing plate. The other end of each of the four groups of spring 1 is arranged with a connecting block. The four groups of connecting blocks are respectively fixedly connected to the four groups of L-shaped clamping plates.

[0008] As a preferred embodiment of the present invention, a driving mechanism is provided inside the base, and the driving mechanism includes a rotating shaft 1, and the rotating shaft 1 is movably plugged into the inside of the base, and the circumferential surfaces at the front and rear ends of the rotating shaft 1 are respectively sleeved with a worm gear 2 and a worm gear 1, and the upper end of the worm gear 2 is meshingly connected with a worm wheel 2, and the worm gear 2 and the worm gear 1 are respectively rotatably installed on the front inner wall and the rear inner wall of the base, and the circumferential surface of the middle part of the rotating shaft 1 is provided with a cross plug block, and two cross plug blocks are symmetrically provided front and back, and the insides of the worm gear 2 and the worm gear 1 are both provided with cross plug grooves matching the cross plug blocks.

[0009] As a preferred embodiment of the present invention, a heating mechanism is arranged on the left side of the rotating shaft 1, and the heating mechanism includes a threaded rod 1, the right end of the threaded rod 1 is rotatably mounted inside the base through a fixing plate, a worm gear 1 is arranged on the circumferential surface of the right side of the threaded rod 1, the lower end of the worm gear 1 is meshingly connected with the upper end of the worm gear 1, a moving block 1 is threadedly connected to the circumferential surface of the threaded rod 1, a mounting plate is arranged on the upper surface of the moving block 1, and a heating lamp is arranged on the upper surface of the left end of the mounting plate.

[0010] As a preferred embodiment of the present invention, a left movable through groove is opened on the left side wall of the base, a left sealing block matching the left movable through groove is arranged at the left end of the mounting plate, a spring 2 is arranged inside the left upper end of the base, a telescopic plate is arranged at the left end of the spring 2, and the width of the telescopic plate matches the diameter of the bottom bracket of the heating lamp.

[0011] As a preferred embodiment of the present invention, a right movable through groove is opened on the right side wall of the base, a right sealing block matching the right movable through groove is arranged on the right end of the storage plate, and sealing and thermal insulation cotton is bonded to the right side wall of the thermal insulation shell and the upper surface of the right end of the base by Velcro.

[0012] As a preferred embodiment of the present invention, a temperature detection mechanism is provided at the upper end of the thermal insulation shell, and the temperature detection mechanism includes a thermometer. Two thermometers are provided and both are arranged on the upper surface of the thermal insulation shell. The two thermometers are electrically connected to a temperature measuring rod. Temperature measuring holes are opened on the left and right sides of the upper surface of the thermal insulation shell, and the temperature measuring holes are provided in several groups. Sealing plugs are provided inside the several temperature measuring holes. The two temperature measuring rods respectively penetrate the temperature measuring holes on the left and right sides and are inserted into the left and right ends of the thermal insulation shell.

[0013] As a preferred embodiment of the present invention, a cross limit rod is movably installed inside the left front end of the storage plate, and the rear end of the cross limit rod is inserted into the front end of the rotating rod, the front end of the cross limit rod passes through the storage plate and is fixedly connected with a pull ring, and a spring three is provided on the rear surface of the pull ring, and the rear end of the spring three is arranged inside the storage plate and sleeved on the circumferential surface of the cross limit rod.

[0014] As a preferred embodiment of the present invention, movable limit grooves are opened in the middle of the four inner walls on the right side of the insulation shell, the sizes of the four groups of movable limit grooves match the four groups of L-shaped clamping plates, and the inner wall on the left side of the insulation shell is provided with a protective steel sheet.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) Through the provided clamping and transferring mechanism, during the experiment, after the admixture concrete specimen is fixed on the left side of the sealing plate, the clamping and transferring mechanism will transfer the specimen to the left to the experimental position inside the thermal insulation shell, thereby avoiding the inconvenience caused by the high temperature inside the thermal insulation shell or the need for additional work when the specimen is manually placed, thereby improving safety and experimental efficiency;

[0017] (2) Through the provided driving mechanism, when the heat conduction detection work is not needed, the clamping and transferring mechanism can be first stored inside the storage plate of the storage mechanism, and then the heating mechanism and the storage mechanism can be transferred to the inside of the base and the heat preservation shell for storage, thereby reducing the protruding part of the equipment to reduce the probability of damage by collision, and also reducing the space occupied by the equipment, which is convenient for the storage of the equipment;

[0018] (3) By setting up a temperature detection mechanism, the temperature measuring rod can be inserted into the temperature measuring holes at different positions, so that temperature measurement can be performed at different positions, which increases the experimental data, reduces the uncertainty caused by chance, and makes the experimental data more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a front cutaway perspective view of the present invention;

[0022] Figure 3 It is a left cutaway perspective view of the present invention;

[0023] Figure 4 It is a top-down perspective view of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the heat-insulating shell of the present invention;

[0025] Figure 6 It is a left-cut stereoscopic view of the sealing plate of the present invention;

[0026] Figure 7 For the present invention Figure 6 A magnified view of the structure at center A;

[0027] Figure 8 It is a partial exploded view of the present invention;

[0028] Fig. 9 It is a schematic diagram of a first three-dimensional structure of the heat-insulating shell of the present invention;

[0029] Fig.10 It is a second three-dimensional structural schematic diagram of the thermal insulation shell of the present invention.

[0030] In the figure: 1, base; 2, heat preservation shell; 3, driving mechanism; 301, rotating shaft 1; 302, worm gear 1; 303, worm gear 2; 304, cross plug block; 305, cross plug slot; 4, heating mechanism; 401, threaded rod 1; 402, worm gear 1; 403, moving block 1; 404, mounting plate; 405, heating lamp; 5, storage mechanism; 501, threaded rod 2; 502, worm gear 2; 503, moving block 2; 504, storage plate; 505, rotating plate; 506, sealing plate; 6, clamping and transferring mechanism; 601, rotating shaft 2; 60 2. Bump; 603. L-shaped clamping plate; 604. Admixture concrete specimen; 605. Connecting block; 606. Spring one; 7. Temperature detection mechanism; 701. Thermometer; 702. Temperature measuring rod; 703. Temperature measuring hole; 704. Sealing plug; 8. Fixed plate; 9. Left sealing block; 10. Left movable through slot; 11. Spring two; 12. Telescopic plate; 13. Right movable through slot; 14. Right sealing block; 15. Turning rod; 16. Cross limit rod; 17. Spring three; 18. Pull ring; 19. Movable limit slot; 20. Protective steel sheet; 21. Sealing and thermal insulation cotton. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example:

[0033] See also Figure 1 - Fig.10 As shown, a heat conduction detection device for admixture concrete specimens comprises a base 1, an insulation shell 2 is arranged on the upper surface of the base 1, the interior of the insulation shell 2 is composed of aluminum foil rubber-plastic insulation cotton, which can isolate the heat transfer between the inside and the outside during the experiment, and the right side wall of the insulation shell 2 and the upper surface of the right end of the base 1 are bonded with sealing insulation cotton 21 by Velcro, and the setting of the sealing insulation cotton 21 is convenient for opening or closing, and the insulation shell 2 and the right side wall of the base 1 are convenient for feeding materials into or taking out of the insulation shell 2, and the sealing insulation cotton 21 can keep the temperature unchanged for ten minutes when the right side of the insulation shell 2 is closed, so as to avoid the temperature inside the insulation shell 2 from leaking from the right side, thereby improving the accuracy of the experimental detection data, and the inner wall on the left side of the insulation shell 2 is provided with a protective steel sheet 20, and the setting of the protective steel sheet 20 can avoid the internal temperature of the left side of the insulation shell 2 from being too high, so as to damage the insulation shell 2;

[0034] The base 1 is provided with a driving mechanism 3 inside, the driving mechanism 3 includes a rotating shaft 1 301, and the rotating shaft 1 301 is movably plugged into the base 1, and the circumferential surfaces at the front and rear ends of the rotating shaft 1 301 are respectively sleeved with a worm 2 303 and a worm 1 302, and the worm 2 303 and the worm 1 302 are respectively rotatably mounted on the front inner wall and the rear inner wall of the base 1, which can limit the worm 1 302 and the worm 2 303 without affecting the rotation of the worm 1 302 and the worm 2 303. A cross plug block 304 is provided on the circumferential surface of the middle part of the rotating shaft 1 301, and two cross plug blocks 304 are symmetrically provided front and back. A cross plug groove 305 matching the cross plug block 304 is provided inside the worm gear 2 303 and the worm gear 1 302, so that the cross plug block 304 can be smoothly plugged into the inside of the cross plug groove 305, and then the rotating shaft 1 301 is connected to the worm gear 1 302 or the worm gear 2 303 respectively through the cross plug block 304;

[0035] It should be noted that the rotating shaft 301 can rotate and slide back and forth inside the base 1, so that the rotating shaft 301 can drive the cross plug block 304 to move back and forth, so as to be plugged into the cross plug groove 305 of the worm gear 2 303 or the worm gear 1 302, and the cross plug block 304 on the rotating shaft 301 is initially located in the middle and is not plugged into the inside of the worm gear 1 302 and the worm gear 2 303. When needed, the rotating shaft 301 moves backward, which can drive the cross plug block 304 to be plugged into the cross plug groove 305 of the worm gear 1 302, so that when the rotating shaft 301 rotates at this time, it can drive the worm gear 1 302 to rotate. Similarly, when the rotating shaft 301 moves forward, it can drive the cross plug block 304 to be plugged into the cross plug groove 305 of the worm gear 2 303, so that when the rotating shaft 1 301 rotates at this time, it can drive the worm gear 2 303 to rotate.

[0036] A heating mechanism 4 is arranged on the left side of the rotating shaft 301. The heating mechanism 4 includes a threaded rod 401. The right end of the threaded rod 401 is rotatably mounted inside the base 1 through a fixing plate 8. The setting of the fixing plate 8 can limit the threaded rod 401 without affecting the rotation of the threaded rod 401. A worm wheel 402 is arranged on the circumferential surface of the right side of the threaded rod 401. The lower end of the worm wheel 402 is meshedly connected with the upper end of the worm 302, so that when the worm 302 rotates, it can The worm wheel 402 is smoothly driven to rotate. The circumferential surface of the threaded rod 401 is threadedly connected with a moving block 403. The upper surface of the moving block 403 is provided with a mounting plate 404. The upper surface of the left end of the mounting plate 404 is provided with a heating lamp 405. The left side wall of the base 1 is provided with a left movable through groove 10. The setting of the left movable through groove 10 provides a moving space for the moving block 403 and the mounting plate 404, so that the moving block 403 and the mounting plate 404 can be smoothly moved from the inside of the base 1. When moving out of or into the interior of the base 1, the left end of the mounting plate 404 is provided with a left sealing block 9 that matches the left movable through groove 10. The setting of the left sealing block 9 allows the left sealing block 9 to seal the left movable through groove 10 after the moving block 1 403, the mounting plate 404 and the heating lamp 405 need to be moved into the interior of the base 1 and the heat preservation shell 2, thereby preventing external dust and water vapor from entering the interior of the base 1 and contaminating and corroding components such as the threaded rod 1 401, thereby improving the service life of the equipment. A spring 2 11 is provided inside the upper left end of the base 1, and a telescopic plate 12 is provided at the left end of the spring 2 11. The width of the telescopic plate 12 matches the diameter of the bottom bracket of the heating lamp 405. The setting of the spring 2 11 and the telescopic plate 12 provides a movable space for the bracket of the heating lamp 405, so that the heating lamp 405 can be smoothly moved into or out of the heat preservation shell 2. After the heating lamp 405 is moved out of the heat preservation shell 2, the bracket movable groove can be closed to prevent heat from being lost from the bracket movable groove during subsequent heating.

[0037] It should be noted that, by designing the heating lamp 405 to be movable left and right, the position of the heating lamp 405 can be quickly adjusted during subsequent concrete specimen experiments, thereby ensuring that the light source is not overly concentrated, placing the bulb of the heating lamp 405 at a suitable position on the concrete, and ensuring that the light source is evenly irradiated on the concrete specimen as much as possible.

[0038] A storage mechanism 5 is provided inside the right side of the heat preservation shell 2, and the storage mechanism 5 includes a threaded rod 501, and the left end of the threaded rod 501 is rotatably mounted inside the base 1 through a fixing plate 8. The setting of the fixing plate 8 can limit the threaded rod 501 without affecting the rotation of the threaded rod 501. A worm gear 502 is provided on the circumferential surface of the left end of the threaded rod 501. The upper end of the worm 303 is meshed with the worm gear 502, and the lower end of the worm gear 502 is meshed with the upper end of the worm 303, so that When the worm 303 rotates, it can smoothly drive the worm wheel 502 to rotate. The circumferential surface of the threaded rod 501 is threadedly connected with the moving block 503. The right end of the upper surface of the moving block 503 is provided with a storage plate 504. The right side wall of the base 1 is provided with a right movable groove 13. The setting of the right movable groove 13 provides a movable space for the moving block 503 and the storage plate 504, so that the moving block 503 and the storage plate 504 can smoothly move horizontally left and right. The right end of the storage plate 504 is provided with a right movable groove 13 matches the right sealing block 14. The setting of the right sealing block 14 can close the right movable groove 13 after the movable block 2 503 and the storage plate 504 are moved into the interior of the heat preservation shell 2, so as to prevent external dust and water vapor from entering the interior of the base 1 to pollute and corrode the threaded rod 2 501 and other parts, thereby improving the service life of the equipment. The left end of the storage plate 504 is rotatably installed with a rotating plate 505 through a rotating rod 15. The upper end of the rotating plate 505 is provided with a sealing plate 506. The left front end of the storage plate 504 is movably installed with a rotating plate 505. The cross limit rod 16 is provided with a cross limit rod 16, and the rear end of the cross limit rod 16 is inserted into the front end of the rotating rod 15, the front end of the cross limit rod 16 penetrates the receiving plate 504 and is fixedly connected with a pull ring 18, and a spring 3 17 is provided on the rear side surface of the pull ring 18, and the rear end of the spring 3 17 is provided inside the receiving plate 504 and sleeved on the circumferential surface of the cross limit rod 16. The setting of the spring 3 17 can make the cross limit rod 16 shrink inside the left front end of the receiving plate 504 when the pull ring 18 and the cross limit rod 16 are not affected by external forces;

[0039] It should be noted that a slot matching the cross limit rod 16 is provided inside the front end of the rotating rod 15, so that the cross limit rod 16 can be smoothly inserted into the interior of the rotating rod 15, locking the rotating rod 15 so that it cannot rotate. The rotating rod 15 can only rotate when the cross limit rod 16 is moved forward and out of the interior of the rotating rod 15.

[0040] The sealing plate 506 is provided with a clamping and transferring mechanism 6 inside. The clamping and transferring mechanism 6 includes a second rotating shaft 601, and the second rotating shaft 601 is rotatably installed in the middle of the right inner side of the sealing plate 506. A convex block 602 is provided on the circumferential surface on the right side of the second rotating shaft 601, and there are four convex blocks 602. One end of each of the four convex blocks 602 abuts against an L-shaped clamping plate 603. The left inner side of the four groups of L-shaped clamping plates 603 clamps the admixture concrete specimen 604. The middle part of each of the four edges of the sealing plate 506 is provided with a There is a spring 606, and the other ends of the four groups of springs 606 are all provided with a connecting block 605, and the four groups of connecting blocks 605 are respectively fixedly connected to the four groups of L-shaped clamping plates 603. The middle parts of the four inner walls on the right side of the heat preservation shell 2 are all provided with a movable limiting groove 19, and the sizes of the four groups of movable limiting grooves 19 are all matched with the four groups of L-shaped clamping plates 603. The setting of the movable limiting groove 19 provides a movable space for the L-shaped clamping plate 603, so that the L-shaped clamping plate 603 can be smoothly moved into the interior of the heat preservation shell 2;

[0041] It should be noted that the protrusion 602 and the end of the L-shaped clamping plate 603 close to the second shaft 601 are both designed in an arc shape, so that when the second shaft 601 drives the protrusion 602 to rotate, it can smoothly push the L-shaped clamping plate 603 away from the sealing plate 506 through the protrusion 602, and when the protrusion 602 abuts against the L-shaped clamping plate 603, the space formed between the four groups of L-shaped clamping plates 603 can smoothly place the admixture concrete specimen 604, and then the second shaft 601 is rotated so that the protrusion 602 no longer abuts against the L-shaped clamping plate 603, and the four groups of L-shaped clamping plates 603 abut against the admixture concrete specimen 604 under the pull of the spring 1 606 and the connecting block 605. The mixed concrete specimen 604 is clamped in the middle of the four sides and is clamped on the left side of the sealing plate 506, so that when the sealing plate 506 moves to the left into the insulation shell 2, it can be moved into the insulation shell 2 with the mixed concrete specimen 604, and then the experiment can be carried out smoothly. After the mixed concrete specimen 604 is moved into the insulation shell 2, the left side of the mixed concrete specimen 604 is abutted against the right side of the protective steel sheet 20, and the front, back, upper and lower four sides of the mixed concrete specimen 604 are respectively abutted against the four inner walls of the insulation shell 2, thereby isolating the insulation shell 2 from left to right, and then the insulation performance of the mixed concrete specimen 604 can be smoothly tested.

[0042] A temperature detection mechanism 7 is provided at the upper end of the heat-insulating shell 2. The temperature detection mechanism 7 includes a thermometer 701. Two thermometers 701 are provided and are both arranged on the upper surface of the heat-insulating shell 2. The two thermometers 701 are electrically connected to a temperature measuring rod 702. Temperature measuring holes 703 are provided on the left and right sides of the upper surface of the heat-insulating shell 2, and the temperature measuring holes 703 are provided in several groups. The interiors of the several temperature measuring holes 703 are provided with sealing plugs 704. The setting of the sealing plugs 704 can close the temperature measuring holes 703 when the temperature measuring holes 703 are not in use, and can also close the unused temperature measuring holes 703 when in use, so as to avoid the heat on the left side from being lost through the temperature measuring holes 703 and affecting the detection quality. The two temperature measuring rods 702 respectively penetrate the temperature measuring holes 703 on the left and right sides and are plugged into the left and right ends of the heat-insulating shell 2.

[0043] It should be noted that although multiple groups of temperature measuring holes 703 are provided, after the temperature measuring hole 703 is selected, when the concrete specimens 604 with different proportions of admixtures are subsequently tested, the insertion position of the temperature measuring rod 702 is the same temperature measuring hole 703, because the fixed temperature measuring node can reduce the error and improve the accuracy of the experimental results.

[0044] The present invention, when used, comprises the following steps:

[0045] Step 1, first tear off the sealing insulation cotton 21 on the right side from the insulation shell 2, then move the rotating shaft 1 301 forward so that the rotating shaft 1 301 is connected to the worm gear 2 303 through the cross plug block 304, and then rotate the rotating shaft 1 301 to drive the worm gear 2 303 to rotate, thereby driving the worm gear 2 502 and the threaded rod 2 501 to rotate, and then the moving block 2 503 drives the storage plate 504 to move to the right out of the insulation shell 2, and then use the pull ring 18 to move the cross limit rod 16 out from the front end of the rotating rod 15, and then the sealing plate 506 can be rotated to screw it out from the inside of the storage plate 504 and put it in a vertical state, and then release the pull ring 18, and the cross limit rod 16 is in the elastic force of the spring 3 17. Insert the rotating rod 15 again, lock the rotating rod 15, and then limit and fix the rotating plate 505 and the sealing plate 506, then rotate the second rotating shaft 601, so that the protrusion 602 pushes the L-shaped clamping plate 603 away from the sealing plate 506, and when the protrusion 602 abuts against the L-shaped clamping plate 603, the space formed between the four groups of L-shaped clamping plates 603 can smoothly put the admixture concrete specimen 604, then rotate the second rotating shaft 601, so that the protrusion 602 no longer abuts against the L-shaped clamping plate 603, and the four groups of L-shaped clamping plates 603, under the pull of the spring 1 606 and the connecting block 605, respectively abut the middle of the four sides of the admixture concrete specimen 604 and clamp it on the left side of the sealing plate 506;

[0046] Step 2, then reversely rotate the rotating shaft 1 301, so that the moving block 2 503 drives the receiving plate 504 to move to the left into the interior of the heat-insulating shell 2, and then drives the sealing plate 506 and the admixed concrete specimen 604 to move into the interior of the heat-insulating shell 2, so that the left end of the admixed concrete specimen 604 abuts against the right end of the protective steel sheet 20 and then stops, and then move the rotating shaft 1 301 backward, so that the rotating shaft 1 301 is connected to the worm 1 302 through the cross plug block 304, and rotate the rotating shaft 1 301 to drive the worm 1 302 to rotate, thereby driving the worm wheel 1 402 and the threaded rod 1 401 to rotate, so that the moving block 1 403 drives the mounting plate 404 and the heating lamp 405 to move to the right out of the heat-insulating shell 2, and stops after the heating lamp 405 moves to a suitable position;

[0047] Step 3: Then insert the two temperature measuring rods 702 into the temperature measuring holes 703, and then adhere the sealing heat-insulating cotton 21 to the right side of the heat-insulating shell 2 through Velcro, turn on the heating lamp 405, and then perform the heat conduction detection work;

[0048] Step 4: After recording the measured data, first remove the temperature measuring rod 702 on the right from the inside of the insulation shell 2, and then repeat the work of step 1, place the new concrete specimen 604 with different proportions of admixtures on the left side of the sealing plate 506, and then move it into the insulation shell 2 again for testing. After repeated attempts, record the experimental data of the concrete specimen 604 with different proportions of admixtures, calculate the temperature difference on both sides, and draw a curve chart of temperature change over time, and compare and analyze the results to obtain experimental conclusions.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A thermal conductivity detection device for a concrete specimen, comprising a base (1), wherein an insulating shell (2) is arranged on the upper surface of the base (1), characterized in that: A storage mechanism (5) is provided inside the right side of the heat-insulating shell (2), and the storage mechanism (5) comprises a second threaded rod (501), and the left end of the second threaded rod (501) is rotatably mounted inside the base (1) via a fixing plate (8), a second worm gear (502) is provided on the circumferential surface of the left end of the second threaded rod (501), a second moving block (503) is threadedly connected to the circumferential surface of the second threaded rod (501), a storage plate (504) is provided on the right end of the upper surface of the second moving block (503), a rotating plate (505) is rotatably mounted inside the left end of the storage plate (504) via a rotating rod (15), a sealing plate (506) is provided on the upper end of the rotating plate (505), and a clamping and transferring mechanism (6) is provided inside the sealing plate (506); The clamping and transferring mechanism (6) comprises a second rotating shaft (601), and the second rotating shaft (601) is rotatably mounted in the middle of the right inner side of the sealing plate (506). A convex block (602) is arranged on the circumferential surface of the right side of the second rotating shaft (601), and there are four convex blocks (602). One end of each of the four convex blocks (602) is in contact with an L-shaped clamping plate (603). The left inner sides of the four groups of L-shaped clamping plates (603) clamp the admixture concrete specimen (604). The middle parts of the four edges of the sealing plate (506) are each provided with a spring one (606). The other ends of the four groups of spring one (606) are each provided with a connecting block (605). The four groups of connecting blocks (605) are respectively fixedly connected to the four groups of L-shaped clamping plates (603).

2. A thermal conductivity detection device for admixture concrete specimen according to claim 1, characterized in that: The base (1) is provided with a driving mechanism (3) inside, the driving mechanism (3) comprising a rotating shaft (301), and the rotating shaft (301) is movably plugged into the base (1), the circumferential surfaces at the front and rear ends of the rotating shaft (301) are respectively sleeved with a worm gear (303) and a worm gear (302), the upper end of the worm gear (303) is meshingly connected with a worm wheel (502), the worm gear (303) and the worm gear (302) are respectively rotatably mounted on the front inner wall and the rear inner wall of the base (1), the circumferential surface of the middle part of the rotating shaft (301) is provided with a cross plug block (304), and two cross plug blocks (304) are symmetrically arranged in front and back, and the insides of the worm gear (303) and the worm gear (302) are both provided with a cross plug groove (305) matching the cross plug block (304).

3. The thermal conductivity detection device for admixture concrete specimen according to claim 2, characterized in that: A heating mechanism (4) is arranged on the left side of the rotating shaft (301), and the heating mechanism (4) comprises a threaded rod (401), the right end of the threaded rod (401) is rotatably mounted inside the base (1) via a fixing plate (8), a worm gear (402) is arranged on the circumferential surface of the right side of the threaded rod (401), the lower end of the worm gear (402) is meshingly connected with the upper end of the worm (302), a moving block (403) is threadedly connected to the circumferential surface of the threaded rod (401), a mounting plate (404) is arranged on the upper surface of the moving block (403), and a heating lamp (405) is arranged on the upper surface of the left end of the mounting plate (404).

4. The thermal conductivity detection device for admixture concrete specimen according to claim 3, characterized in that: A left movable through slot (10) is provided on the left side wall of the base (1), a left sealing block (9) matching the left movable through slot (10) is provided on the left end of the mounting plate (404), a spring 2 (11) is provided inside the upper left end of the base (1), a telescopic plate (12) is provided on the left end of the spring 2 (11), and the width of the telescopic plate (12) matches the diameter of the bottom bracket of the heating lamp (405).

5. The thermal conductivity detection device for admixture concrete specimen according to claim 1, characterized in that: The right side wall of the base (1) is provided with a right movable through groove (13), the right end of the storage plate (504) is provided with a right sealing block (14) matching the right movable through groove (13), and the right side wall of the heat-insulating shell (2) and the upper surface of the right end of the base (1) are bonded with sealing heat-insulating cotton (21) via Velcro.

6. The thermal conductivity detection device for admixture concrete specimen according to claim 1, characterized in that: A temperature detection mechanism (7) is provided at the upper end of the heat-insulating shell (2), and the temperature detection mechanism (7) comprises a thermometer (701). Two thermometers (701) are provided and are both arranged on the upper surface of the heat-insulating shell (2). The two thermometers (701) are both electrically connected to a temperature measuring rod (702). Temperature measuring holes (703) are provided on the left and right sides of the upper surface of the heat-insulating shell (2), and the temperature measuring holes (703) are provided in a plurality of groups. Sealing plugs (704) are provided inside the plurality of temperature measuring holes (703). The two temperature measuring rods (702) respectively penetrate the temperature measuring holes (703) on the left and right sides and are plugged into the left and right ends of the heat-insulating shell (2).

7. The thermal conductivity detection device for admixture concrete specimen according to claim 1, characterized in that: A cross limit rod (16) is movably installed inside the left front end of the storage plate (504), and the rear end of the cross limit rod (16) is inserted into the front end of the rotating rod (15). The front end of the cross limit rod (16) passes through the storage plate (504) and is fixedly connected to a pull ring (18). A spring three (17) is provided on the rear side surface of the pull ring (18). The rear end of the spring three (17) is arranged inside the storage plate (504) and is sleeved on the circumferential surface of the cross limit rod (16).

8. The thermal conductivity detection device for admixture concrete specimen according to claim 1, characterized in that: The four inner walls on the right side of the thermal insulation shell (2) are each provided with a movable limit groove (19) in the middle, and the sizes of the four groups of movable limit grooves (19) are matched with the four groups of L-shaped clamping plates (603). The inner wall on the left side of the thermal insulation shell (2) is provided with a protective steel sheet (20).

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