A thermostat water bath for concrete performance test

Abstract

The utility model relates to concrete detection technical field discloses a constant temperature water bath pot for concrete performance test, including the shell, the shell inner wall fixedly connected with the heat preservation board, the shell left side is provided with the water pump, the water pump input is fixedly connected between the shell, the water pump output is fixedly provided with the water delivery pipe, the water delivery pipe outer surface is fixedly connected with a plurality of sprays, the shell right side is fixedly connected with the PID temperature controller, the shell front side is provided with the display screen. In the utility model, through the feedback signal of PID temperature controller according to temperature sensor adjusts the heating power of the electric heating tube, makes the water temperature keep in the set value, the water pump extracts the water from the shell, is transported to the spray head through the water pipe, the spray head evenly sprays the water on the heating plate, effectively guarantees the uniformity of water temperature in the water bath pot, avoids the performance test error of concrete test piece because of the temperature uneven, and the heat preservation layer effectively reduces the heat loss.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a constant temperature water bath for concrete performance testing. Background Technology

[0002] A constant-temperature water bath for concrete performance testing is an important piece of equipment in the field of concrete performance testing. By precisely controlling the water temperature, it provides a stable constant-temperature environment for concrete specimens. In concrete performance testing, temperature has a significant impact on various performance indicators. This constant-temperature water bath can ensure that specimens are cured or tested at a specified temperature, simulating the temperature conditions in the actual use environment of concrete. This helps to accurately detect the strength and durability performance parameters of concrete, providing reliable support for concrete quality control and performance research.

[0003] A search revealed that publication number CN222446579U discloses a constant-temperature water bath for concrete performance testing. The bath includes a main body with an end cap at its upper end and a power unit at its rear end. The power unit is used to open or close the end cap. Inside the main body is a support plate with guide wheels fixedly connected to both sides. A traction rope is fixedly connected to the inner wall of the main body, with one end of the rope away from the main body fixedly connected to the end cap. The rope passes through the lower end of the guide wheels. This invention, by incorporating a power unit, traction rope, and guide wheels, makes removing concrete blocks more convenient and faster. Furthermore, lifting the support plate eliminates the need for manual lifting, reducing worker fatigue and preventing injury from high temperatures.

[0004] The existing water bath has uneven water temperature distribution, which causes temperature differences in different parts of the concrete specimen, resulting in deviations in test results. Due to the large heat loss, too much energy is consumed to maintain the water temperature, resulting in low energy utilization. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a constant temperature water bath for concrete performance testing, aiming to improve the problems of uneven water temperature distribution and energy waste caused by heat loss in existing water baths.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature water bath for concrete performance testing, comprising an outer shell, an insulation board fixedly connected to the inner wall of the outer shell, a water pump disposed on the left side of the outer shell, the input end of the water pump being fixedly connected to the outer shell, a water supply pipe fixedly disposed on the output end of the water pump, multiple nozzles fixedly connected to the outer surface of the water supply pipe, a PID temperature controller fixedly connected to the right side of the outer shell, a display screen disposed on the front side of the outer shell, an electric heating tube fixedly connected to the bottom of the inner wall of the outer shell, a heating plate fixedly connected to the top of the electric heating tube, a temperature sensor disposed inside the heating plate, and a lifting assembly disposed on the top of the outer shell for lifting concrete blocks.

[0007] The above technical solution, through the coordinated operation of a PID temperature controller, temperature sensor, and electric heating element, can accurately control and maintain the water temperature at the set value, providing a stable temperature environment for concrete performance testing and ensuring test accuracy. The water pump, water pipes, and nozzles enable internal water circulation and spraying, ensuring uniform water temperature and preventing uneven temperature from affecting the concrete specimen performance test results. The insulation board reduces heat loss, improves energy efficiency, and lowers energy consumption. The display screen allows users to intuitively view key information such as temperature. Overall, this improves the practicality, reliability, and efficiency of the constant temperature water bath in concrete performance testing.

[0008] As a further description of the above technical solution:

[0009] Preferably, the lifting assembly includes a cover plate, which is rotatably connected to the outer shell. Two first sliding grooves are formed on the front side of the cover plate, and sliding blocks are slidably connected in each of the two first sliding grooves. Connecting rods are rotatably connected to the front side of each of the two sliding blocks, and a lifting component is rotatably connected between the bottoms of the two connecting rods.

[0010] The above technical solution works as follows: when the cover plate rotates, the sliding block in the first groove will slide accordingly. The horizontal movement of the sliding block is converted into the vertical movement of the lifting component through the connecting rod, thereby driving the lifting component to rise or fall within a certain track, realizing the function of automatically lifting or lowering the concrete block.

[0011] As a further description of the above technical solution:

[0012] Preferably, a motor is fixedly connected to the top right side of the housing, a worm gear is fixedly connected to the output end of the motor, a worm wheel is meshed with the top of the worm gear, and the worm wheel is fixedly connected to the cover plate.

[0013] The above technical solution involves the motor output driving the worm to rotate, the worm meshing with the worm wheel, and transmitting the rotational motion of the worm to the worm wheel. Since the worm wheel is fixedly connected to the cover plate, it in turn drives the cover plate to rotate, thus completing the automatic opening or closing action.

[0014] As a further description of the above technical solution:

[0015] Preferably, a drain pipe is fixedly connected to the left side of the outer casing, and a valve is provided at the top of the drain pipe.

[0016] The above technical solution enables convenient control of water discharge from the constant temperature water bath. The drain pipe is fixed on the left side of the outer shell, providing a discharge channel for the water in the water bath, making it convenient to drain the water when it is necessary to replace the water, clean the water bath, or after the experiment.

[0017] As a further description of the above technical solution:

[0018] Preferably, two second sliding grooves are provided on both the left and right sides of the inner wall of the insulation board, and the lifting component slides between the four second sliding grooves.

[0019] The above technical solution achieves precise guidance and stable support for the movement of the lifting component. The four second sliding grooves on both sides of the inner wall of the insulation board provide a specific movement track for the lifting component, ensuring that the lifting component maintains linear movement during the rising and falling process, effectively preventing it from deviating or shaking, so that the concrete block placed on the lifting component can be lifted or lowered smoothly.

[0020] As a further description of the above technical solution:

[0021] Preferably, the top end of the water supply pipe extends through and into the interior of the outer casing, and the water supply pipe is fixedly connected to the outer casing.

[0022] The above technical solution achieves the function of stably delivering water pumped by the water pump to the inside of the shell. The stable water flow channel from the water pump to the nozzle inside the shell ensures that the water pumped by the water pump can be reliably delivered to the nozzle, realizing the function of evenly spraying water on the heating plate. This allows the water to circulate in the water bath, ensuring uniform water temperature and providing a uniform and stable temperature environment for concrete performance testing. It also avoids uneven water temperature caused by poor water flow, which would affect the performance test results of concrete specimens.

[0023] As a further description of the above technical solution:

[0024] Preferably, all of the nozzles are located inside the housing.

[0025] The above technical solution enables uniform water spraying onto the heating plate within a limited space, allowing the water to circulate fully within the water bath, effectively ensuring uniform water temperature distribution and avoiding errors in concrete specimen performance testing due to localized water temperature differences.

[0026] As a further description of the above technical solution:

[0027] Preferably, the bottom of the lifting component has multiple evenly distributed holes.

[0028] The above technical solution enables normal water flow, ensuring unobstructed water circulation within the water bath and maintaining a uniform water temperature. Simultaneously, these holes prevent concrete debris from entering the water supply pipes and causing blockages, ensuring smooth operation of the entire water circulation system and avoiding any impact on the water bath's temperature control due to pipe blockages. This, in turn, guarantees the successful conduct of concrete performance testing.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the heating power of the electric heating tube is adjusted by the PID temperature controller according to the feedback signal of the temperature sensor to keep the water temperature at the set value. The water pump draws water from the outer shell and delivers it to the nozzle through the water pipe. The nozzle sprays the water evenly on the heating plate, which effectively ensures the uniformity of the water temperature in the water bath and avoids performance test errors of concrete specimens caused by uneven temperature. The heat insulation layer effectively reduces heat loss, so that no excessive energy consumption is required when maintaining the same water temperature, thus improving heating efficiency.

[0031] 2. In this utility model, the worm gear is driven by a motor to rotate, which in turn drives the worm wheel and the cover plate to rotate. At this time, the two sliding blocks slide in the first sliding groove, and the two connecting rods pull up the lifting component to slide in the second sliding groove. This enables the internal detection concrete block to be automatically lifted when the cover plate is opened, making it easy for the user to remove. At the same time, the water flow is allowed to pass through the holes on the lifting component, and the residue of the concrete block is blocked in the lifting component to prevent the fragments from clogging the water supply pipe. Attached Figure Description

[0032] Figure 1 This is a main body diagram of a constant temperature water bath for concrete performance testing proposed in this utility model.

[0033] Figure 2 This is a schematic diagram of the heating element of a constant temperature water bath for concrete performance testing proposed in this utility model.

[0034] Figure 3 This is a schematic diagram of a temperature sensor for a constant temperature water bath used for concrete performance testing, as proposed in this utility model.

[0035] Figure 4 This is a schematic diagram of the motor of a constant temperature water bath for concrete performance testing proposed in this utility model.

[0036] Legend:

[0037] 1. Housing; 2. Display screen; 3. PID temperature controller; 4. Lifting assembly; 401. Cover plate; 402. First slide groove; 403. Sliding block; 404. Connecting rod; 405. Lifting component; 5. Water pump; 6. Water supply pipe; 7. Nozzle; 8. Insulation board; 9. Second slide groove; 10. Drain pipe; 11. Valve; 12. Heating plate; 13. Electric heating element; 14. Motor; 15. Worm gear; 16. Worm wheel; 17. Temperature sensor. Detailed Implementation

[0038] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Reference Figures 1-3 An embodiment of this utility model provides a constant temperature water bath for concrete performance testing, comprising an outer shell 1, an insulation board 8 fixedly connected to the inner wall of the outer shell 1, a water pump 5 disposed on the left side of the outer shell 1, the input end of the water pump 5 being fixedly connected to the outer shell 1, a water supply pipe 6 fixedly disposed on the output end of the water pump 5, multiple nozzles 7 fixedly connected to the outer surface of the water supply pipe 6, a PID temperature controller 3 fixedly connected to the right side of the outer shell 1, a display screen 2 disposed on the front side of the outer shell 1, an electric heating tube 13 fixedly connected to the bottom of the inner wall of the outer shell 1, a heating plate 12 fixedly connected to the top of the electric heating tube 13, a temperature sensor 17 disposed inside the heating plate 12, and a lifting assembly 4 disposed on the top of the outer shell 1 for lifting the concrete block.

[0040] Specifically, the concrete block is placed on the lifting component 405 using the lifting assembly 4. Then, water is added to the outer shell 1, and the required water temperature is set by the PID temperature controller 3. The PID temperature controller 3 operates according to the information displayed on the display screen 2. After startup, the heating element 13 begins to heat the heating plate 12. The temperature sensor 17 inside the heating plate 12 monitors the temperature in real time and feeds the signal back to the PID temperature controller 3. The PID temperature controller 3 adjusts the heating power of the heating element 13 accordingly to make the water temperature approach the set value. At the same time, the water pump 5 extracts water from the outer shell 1 and delivers it to multiple nozzles 7 through the water pipe 6. The nozzles 7 spray water evenly on the heating plate 12 to ensure uniform water temperature and avoid performance test errors caused by uneven temperature of the concrete specimen. The insulation board 8 reduces heat loss, lowers the energy consumption for maintaining water temperature, and improves heating efficiency. The entire process continuously and stably provides a suitable and uniform water temperature environment for concrete performance testing.

[0041] Reference Figures 1-3The lifting assembly 4 includes a cover plate 401, which is rotatably connected to the outer shell 1. Two first sliding grooves 402 are opened on the front side of the cover plate 401. Sliding blocks 403 are slidably connected in both first sliding grooves 402. Connecting rods 404 are rotatably connected to the front side of both sliding blocks 403. Lifting components 405 are rotatably connected between the bottoms of the two connecting rods 404.

[0042] Specifically, during the rotation of the cover plate 401, the sliding block 403 slides within the first slide groove 402. The sliding block 403 drives the connecting rod 404, which is rotatably connected to it, to move. The bottoms of the two connecting rods 404 together pull up the lifting component 405, causing the lifting component 405 to slide and rise within the second slide groove 9, lifting the concrete block placed on the lifting component 405 for easy removal by the user. The lifting component 405 is provided with holes, allowing water from the water bath to flow normally, but concrete block residue will be blocked inside the lifting component 405, preventing fragments from entering the water supply pipe 6 and causing blockage. This achieves the function of automatically lifting the concrete block and blocking residue to prevent pipe blockage when the cover plate 401 is opened.

[0043] Reference Figure 4 A motor 14 is fixedly connected to the top right side of the outer casing 1. A worm gear 15 is fixedly connected to the output end of the motor 14. A worm wheel 16 is meshed with the top of the worm gear 15. The worm wheel 16 is fixedly connected to the cover plate 401.

[0044] Specifically, after the motor 14 starts, it drives the worm wheel 16 through the worm gear 15, which in turn drives the cover plate 401 to rotate, so as to realize the automatic opening and closing of the cover plate 401, making it convenient for users to put in or take out concrete blocks.

[0045] Reference Figure 1 A drain pipe 10 is fixedly connected to the left side of the outer casing 1, and a valve 11 is provided on the top of the drain pipe 10.

[0046] Specifically, when it is necessary to replace the water in the water bath, clean the water bath, or after the test, the water can be drained through the drain pipe 10. The drain pipe 10 is equipped with a valve 11 at the top, which can control the opening and closing of the drain, so that users can flexibly decide whether to drain according to actual needs and avoid water flowing out at will.

[0047] Reference Figure 1 and Figure 2 The insulation board 8 has two second sliding grooves 9 on both the left and right sides of its inner wall, and the lifting component 405 slides between the four second sliding grooves 9.

[0048] Specifically, the lifting component 405 slides between the four second slide grooves 9, which not only ensures the stability of the lifting component 405 during the rising and falling process and prevents it from deviating or shaking, but also ensures that the concrete block is lifted and lowered smoothly.

[0049] Reference Figure 1 The top of the water pipe 6 penetrates and extends into the interior of the outer casing 1, and the water pipe 6 is fixedly connected to the outer casing 1.

[0050] Specifically, the outer casing 1 connects the water pump 5 to the nozzle 7 inside the outer casing 1, ensuring that the water pumped by the water pump 5 can be reliably delivered to the nozzle 7, thereby achieving the function of spraying water evenly on the heating plate 12.

[0051] Reference Figure 1 Multiple nozzles 7 are located inside the outer casing 1.

[0052] Specifically, multiple nozzles 7 are located inside the outer casing 1, which ensures that the water sprayed by the nozzles 7 acts on the heating plate 12 within the limited space inside the outer casing 1, so that the water circulates in the water bath and effectively ensures uniform water temperature.

[0053] Reference Figure 2 The bottom of the lifting component 405 has multiple evenly distributed holes.

[0054] Specifically, the bottom of the lifting component 405 has multiple evenly distributed holes, which allow water to flow through normally, ensuring that the water circulation in the water bath is unobstructed and maintaining a uniform water temperature. At the same time, it can block the residue of concrete blocks inside the lifting component 405, preventing the fragments from entering the water supply pipe 6 with the water flow and causing blockage.

[0055] Working principle: When using this constant temperature water bath, the user first places the concrete block on the lifting component 405 through the lifting component 4, adds water to the outer shell 1, and starts the equipment after the PID temperature controller 3 sets the water temperature according to the information on the display screen 2. The electric heating tube 13 heats the heating plate 12, and the temperature sensor 17 in the heating plate 12 feeds back the temperature signal to the PID temperature controller 3 in real time. The PID temperature controller 3 adjusts the heating power of the electric heating tube 13 to make the water temperature approach the set value. At the same time, the water pump 5 draws water from the outer shell 1 and sends it to multiple nozzles 7 in the outer shell 1 through the water supply pipe 6. The nozzles 7 spray water evenly on the heating plate 12 to ensure uniform water temperature and reduce test errors caused by uneven temperature of the concrete specimen. The insulation plate 8 reduces heat loss and improves heating efficiency.

[0056] When the concrete block needs to be removed, the motor 14 is started. The motor 14 drives the worm gear 15, which in turn drives the worm wheel 16, thereby causing the cover plate 401 to rotate and open. The sliding block 403 in the first groove 402 on the cover plate 401 slides, which drives the connecting rod 404 to pull up the lifting component 405. The lifting component 405 slides and rises in the second groove 9 on the inner wall of the insulation board 8, lifting the concrete block for easy removal. The bottom hole of the lifting component 405 allows water to circulate normally and blocks residue to prevent blockage of the water supply pipe 6. When the test is over or when water needs to be changed and cleaned, the valve 11 at the top of the drain pipe 10 is opened to drain water through the drain pipe 10.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A constant temperature water bath for concrete performance testing, comprising an outer shell (1), characterized in that: An insulation board (8) is fixedly connected to the inner wall of the outer shell (1). A water pump (5) is provided on the left side of the outer shell (1). The input end of the water pump (5) is fixedly connected to the outer shell (1). A water supply pipe (6) is fixedly provided at the output end of the water pump (5). Multiple nozzles (7) are fixedly connected to the outer surface of the water supply pipe (6). A PID temperature controller (3) is fixedly connected to the right side of the outer shell (1). A display screen (2) is provided on the front side of the outer shell (1). An electric heating tube (13) is fixedly connected to the bottom of the inner wall of the outer shell (1). A heating plate (12) is fixedly connected to the top of the electric heating tube (13). A temperature sensor (17) is provided inside the heating plate (12). A lifting component (4) is provided on the top of the outer shell (1). The lifting component (4) is used to lift the concrete block.

2. The constant temperature water bath for concrete performance testing according to claim 1, characterized in that: The lifting assembly (4) includes a cover plate (401), which is rotatably connected to the outer shell (1). Two first sliding grooves (402) are opened on the front side of the cover plate (401), and sliding blocks (403) are slidably connected in the two first sliding grooves (402). Connecting rods (404) are rotatably connected to the front side of the two sliding blocks (403), and lifting components (405) are rotatably connected between the bottoms of the two connecting rods (404).

3. The constant temperature water bath for concrete performance testing according to claim 1, characterized in that: A motor (14) is fixedly connected to the top right side of the outer casing (1). A worm gear (15) is fixedly connected to the output end of the motor (14). A worm wheel (16) is meshed with the top of the worm gear (15). The worm wheel (16) is fixedly connected to the cover plate (401).

4. A constant temperature water bath for concrete performance testing according to claim 1, characterized in that: A drain pipe (10) is fixedly connected to the left side of the outer casing (1), and a valve (11) is provided on the top of the drain pipe (10).

5. A constant temperature water bath for concrete performance testing according to claim 2, characterized in that: The insulation board (8) has two second sliding grooves (9) on both the left and right sides of its inner wall, and the lifting component (405) slides between the four second sliding grooves (9).

6. A constant temperature water bath for concrete performance testing according to claim 1, characterized in that: The top end of the water pipe (6) penetrates and extends into the interior of the outer shell (1), and the water pipe (6) is fixedly connected to the outer shell (1).

7. A constant temperature water bath for concrete performance testing according to claim 1, characterized in that: All of the nozzles (7) are located inside the housing (1).

8. A constant temperature water bath for concrete performance testing according to claim 2, characterized in that: The bottom of the lifting component (405) has multiple evenly distributed holes.

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