Electric heating constant-temperature water bath box

Abstract

The utility model relates to the technical field of water bath boxes, and discloses an electric heating constant-temperature water bath box which comprises a shell, an inner container is fixedly connected to the inner bottom wall of the shell, a heating pipe is fixedly connected to the outer wall of the inner container, a pressure pump is fixedly connected to the left end of the front side of the shell, and the front side of the pressure pump is communicated with a connecting pipe. The rear end of the connecting pipe is communicated with a change-over valve, the left end of the change-over valve is communicated with a conveying pipe, the rear end of the conveying pipe is communicated with a connecting spray pipe, the front side of the connecting spray pipe is fixedly connected to the top end of the front side of the inner wall of the inner container, and the inner bottom wall of the inner container is communicated with a temperature sensor. According to the utility model, water flow is output through the connecting spray pipe, so that water flows circularly under the conditions that the water flow is conveyed by the connecting spray pipe and the heating pipe is used for heating, the aim of further improving the temperature uniformity is fulfilled, and the condition that samples at different positions are inconsistent in temperature influence is avoided.

Description

Technical Field

[0001] This utility model relates to the field of water bath technology, and in particular to an electric heating constant temperature water bath. Background Technology

[0002] Currently, in the field of coating testing, commonly used constant temperature devices mainly include electric heating plates, oil baths, and water baths. These devices are widely used in chemical experiments, biological research, and materials testing, especially in the coating industry, to evaluate the weather resistance and stability of coatings. However, existing constant temperature devices still have certain limitations in terms of precise temperature control and uniform heat transfer, and cannot fully meet the needs of high-precision testing.

[0003] A search revealed Chinese patent publication number CN213611454U, which discloses an electric thermostatic water bath. The key technical features are: a housing comprising a heating zone and a placement zone. The heating zone holds the heating medium, and the placement zone is used to arrange wiring and control components. The wiring in the placement zone is connected to an external power source. A U-shaped heating tube is positioned within the heating zone, with both ends connected to the wiring in the placement zone for heating. Mounting blocks are located at both ends of the heating tube. A through-hole is formed on the side wall of the heating zone, and a rotating shaft is installed within the through-hole. The mounting blocks are rotatably connected to the rotating shaft, allowing the heating tube to rotate. Sealing elements are slidably installed at the connection points at both ends of the heating tube. The electric thermostatic water bath provided in this application has the advantage of being easy to clean; however, in actual use, uneven temperature may occur in the corners of the chamber or near the edge of the heating element, making it difficult to completely eliminate such local temperature differences. For example, in a large-volume water bath, a certain degree of temperature lag may occur in areas far from the heating center, resulting in inconsistent temperature effects on samples at different locations, which reduces the effectiveness of thermostatic storage of samples. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an electric heating constant temperature water bath, which aims to improve the problem that in the prior art, a certain degree of temperature lag occurs in areas far from the stirring center, resulting in inconsistent temperature effects on samples at different locations, thus reducing the effectiveness of constant temperature storage of samples.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electric thermostatic water bath, comprising an outer shell, an inner liner fixedly connected to the inner bottom wall of the outer shell, a heating tube fixedly connected to the outer wall of the inner liner, a pressure pump fixedly connected to the front left end of the outer shell, a connecting pipe connected to the front of the pressure pump, a switching valve connected to the rear end of the connecting pipe, a delivery pipe connected to the left end of the switching valve, a connecting nozzle connected to the rear end of the delivery pipe, a connecting nozzle fixedly connected to the front top end of the inner wall of the inner liner, a temperature sensor connected to the inner bottom wall of the inner liner, a circulation pipe connected to the rear side of the inner liner, a top end of the circulation pipe connected to the bottom of the pressure pump, a sealing plate fixedly connected to the top of the outer wall of the inner liner, a top cover fixedly installed on the top wall of the outer shell, and a mixing mechanism provided on the top of the switching valve.

[0006] The above technical solution allows water to be drawn from the inner tank through the circulation pipe, transported through the connecting pipe and the delivery pipe, and output through the connecting nozzle. At the same time, with the heating pipe activated, the water inside the inner tank is heated, thereby achieving the purpose of circulating hot water. This improves the uniformity of the heating temperature and avoids inconsistent temperature effects on samples at different locations.

[0007] As a further description of the above technical solution:

[0008] The mixing mechanism includes a diverter pipe, the bottom end of which is connected to the top of the switching valve, and the top end of which is connected to the front side of the housing. The top end of the diverter pipe is connected to a mixing chamber, and a flap wheel is rotatably connected to the rear side of the inner wall of the mixing chamber. An injection valve is connected to the top wall of the mixing chamber, and a cleaning pipe is connected to the right side of the mixing chamber. A multi-hole nozzle is connected to the rear end of the cleaning pipe. An mounting plate is fixedly installed on the front side of the mixing chamber, and a drain valve is connected to the rear side of the housing.

[0009] The above technical solution allows clean water to be injected into the mixing tank through the switching valve, while cleaning agent is added into the mixing tank through the injection valve, ensuring that the clean water and cleaning agent are fully mixed. Subsequently, the liquid is sprayed through a multi-hole nozzle to clean the inner liner and its exterior, achieving the purpose of cleaning between the inner liner and the outer shell and improving the cleaning effect.

[0010] As a further description of the above technical solution:

[0011] The mixing mechanism also includes a sealing ring, the outer wall of which is fixedly connected to the bottom of the outer wall of the injection valve.

[0012] The above technical solution improves the sealing effect between the sealing ring and the injection valve through the connection of the sealing ring.

[0013] As a further description of the above technical solution:

[0014] A control switch is fixedly connected to the left side of the top wall of the top cover, and the control switch is electrically connected to the heating tube and the pressure pump respectively.

[0015] The above technical solution achieves the purpose of individually controlling the opening and closing of the device by connecting the control switch to the equipment.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the right side of the top wall of the top cover, and a rubber sleeve is fixedly connected to the middle of the handle.

[0018] The above technical solution makes it easier to open the top cover with a handle, and the anti-slip effect of the handle is improved by the connection of the rubber sleeve.

[0019] As a further description of the above technical solution:

[0020] A rubber ring is fixedly connected to the bottom of the outer wall of the conveying pipe, and the outer wall of the rubber ring is fixedly connected to the left side of the top wall of the mixing box.

[0021] The above technical solution enables protection of the connection point of the delivery pipe through the connection of the rubber ring.

[0022] As a further description of the above technical solution:

[0023] A rubber pad is fixedly connected to the right side of the bottom wall of the top cover, and the rubber pad has a concave shape.

[0024] The above technical solution improves the sealing performance between the top cover and the outer shell by connecting the rubber gasket.

[0025] As a further description of the above technical solution:

[0026] Support frames are fixedly connected to both the left and right sides of the outer casing, and corner protectors are fixedly connected to the front and rear sides of the bottom of the support frames.

[0027] The above technical solution improves the stability of the device by connecting the support frame and the corner protectors.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the start of the pressure pump draws water from inside the inner tank through the circulation pipe, and then the water is delivered through the connecting pipe and the conveying pipe, so that the water is output through the connecting nozzle. At the same time, the start of the heating pipe heats the water inside the inner tank. The water delivered through the connecting nozzle and the water circulating through the circulation pipe circulates the water, which further improves the uniformity of temperature and avoids the situation where the temperature of samples at different locations is inconsistent.

[0030] 2. In this utility model, by switching the path of the switching valve, the water inside the inner tank is transported into the mixing tank. At the same time, the detergent is added into the mixing tank through the injection valve, so that the water and detergent are fully mixed when the water flows and impacts the impeller. Then, the liquid is sprayed to clean the outer wall of the inner tank through the multi-hole spray pipe, and finally discharged through the drain valve. This improves the cleaning effect between the inner tank and the outer shell. Attached Figure Description

[0031] Figure 1 This is a perspective view of an electric thermostatic water bath box proposed in this utility model;

[0032] Figure 2 This is a top view of an electric thermostatic water bath box proposed in this utility model;

[0033] Figure 3 This is a cross-sectional view of the outer shell of an electric thermostatic water bath according to the present invention.

[0034] Figure 4 This is a schematic diagram of the inner liner of an electric thermostatic water bath according to the present invention.

[0035] Figure 5 This is a schematic diagram of the mixing mechanism of an electric thermostatic water bath box proposed in this utility model.

[0036] Legend:

[0037] 1. Outer shell; 2. Mixing mechanism; 201. Diverter pipe; 202. Mixing box; 203. Flange wheel; 204. Injection valve; 205. Cleaning pipe; 206. Multi-hole nozzle; 207. Mounting plate; 208. Sealing ring; 3. Inner tank; 4. Heating pipe; 5. Pressure pump; 6. Connecting pipe; 7. Switching valve; 8. Delivery pipe; 9. Connecting nozzle; 10. Temperature sensor; 11. Circulation pipe; 12. Sealing plate; 13. Top cover; 14. Rubber ring; 15. Control switch; 16. Handle; 17. Rubber sleeve; 18. Support frame; 19. Corner protector; 20. Drain valve; 21. Rubber pad. Detailed Implementation

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

[0039] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of an electric thermostatic water bath, comprising an outer shell 1, an inner liner 3 fixedly connected to the inner bottom wall of the outer shell 1, and a heating pipe 4 fixedly connected to the outer wall of the inner liner 3, which heats the water inside the inner liner 3. A pressure pump 5 is fixedly connected to the front left end of the outer shell 1, and a connecting pipe 6 is connected to the front of the pressure pump 5. A switching valve 7 is connected to the rear end of the connecting pipe 6, and a delivery pipe 8 is connected to the left end of the switching valve 7. Thus, under the connection of the pressure pump 5, the water flow is delivered, and the purpose of delivering the water flow is achieved through the switching valve 7 and the delivery pipe 8. A connecting nozzle 9 is connected to the rear end of the delivery pipe 8. The front side of the nozzle 9 is fixedly connected to the top front side of the inner wall of the inner liner 3, thereby conveying water flow through the nozzle 9, thereby agitating the liquid inside the inner liner 3, improving the fluidity of the water, and increasing the temperature consistency at different locations. The bottom wall of the inner liner 3 is connected to a temperature sensor 10, and the rear side of the inner liner 3 is connected to a circulation pipe 11. The top end of the circulation pipe 11 is connected to the bottom of the pressure pump 5, thereby completing the circulation of the water through the connection of the circulation pipe 11. The top of the outer wall of the inner liner 3 is fixedly connected to a sealing plate 12, and the top wall of the outer shell 1 is fixedly installed with a top cover 13. The top of the switching valve 7 is provided with a mixing mechanism 2.

[0040] Specifically, by opening the right side of the top cover 13, clean water can be added into the inner tank 3. At the same time, the heating tube 4 is activated to heat the water. As heating progresses, the pressure pump 5 is activated, and the heated water inside the inner tank 3 is drawn out through the circulation pipe 11. This allows the heated water to circulate effectively through the circulation pipe 11 and the pressure pump 5. The water is transported through the connecting pipe 6 and the delivery pipe 8, and then output through the connecting nozzle 9, which agitates the water inside the inner tank 3. The water flow delivered through the connecting nozzle 9 and the water flow circulated through the circulation pipe 11 ensures that the water can complete the circulation flow, improving the uniformity of the water temperature and thus avoiding the situation where samples in different locations are affected by inconsistent temperatures.

[0041] Reference Figure 1 , Figure 2 and Figure 5The mixing mechanism 2 includes a diversion pipe 201, the bottom end of which is connected to the top of the switching valve 7, and the top end of which is connected to the front side of the outer shell 1. The top end of the diversion pipe 201 is connected to a mixing tank 202, so that the water flow path is changed under the switching of the switching valve 7. The rear side of the inner wall of the mixing tank 202 is rotatably connected to a flap wheel 203, and the top wall of the mixing tank 202 is connected to an injection valve 204. The injection valve 204 is used to add cleaning liquid into the mixing tank 202, so that it is fully mixed with clean water through the flap wheel 203. The right side of the mixing tank 202 is connected to a cleaning pipe 205, and the rear end of the cleaning pipe 205 is connected to a multi-hole nozzle 206. The outer wall of the inner tank 3 is cleaned under the delivery of the multi-hole nozzle 206. The front side of the mixing tank 202 is fixedly installed with an installation plate 207, and the rear side of the outer shell 1 is connected to a drain valve 20. The cleaned liquid is discharged through the drain valve 20.

[0042] Specifically, by switching the valve 7, the path of the water flow delivered by the pressure pump 5 can be changed, allowing the water inside the inner tank 3 to be transported into the mixing tank 202, thereby driving the rotation of the impeller 203. Furthermore, an appropriate amount of cleaning agent is injected into the mixing tank 202 through the injection valve 204. Under the continuous rotation of the impeller 203, the clean water and cleaning agent can be fully mixed, ensuring the uniformity of the mixture. The mixture is then sprayed onto the outer wall of the inner tank 3 through the multi-hole nozzle 206, effectively removing the adhesion of dust and other dirt. The cleaned liquid is finally discharged through the drain valve 20, which improves the cleanliness of the space between the inner tank 3 and the outer shell 1 and enhances the overall cleaning effect.

[0043] Reference Figure 1 , Figure 4 and Figure 5 The mixing mechanism 2 also includes a sealing ring 208, the outer wall of which is fixedly connected to the bottom of the outer wall of the injection valve 204; a control switch 15 is fixedly connected to the left side of the top wall of the top cover 13, and the control switch 15 is electrically connected to the heating tube 4 and the pressurizing pump 5 respectively; a handle 16 is fixedly connected to the right side of the top wall of the top cover 13, and a rubber sleeve 17 is fixedly connected to the middle of the handle 16.

[0044] Specifically, the sealing ring 208 seals the connection between the injection valve 204 and the mixing tank 202. The control switch 15, which is electrically connected to the heating tube 4 and the pressurization pump 5 respectively, enables the equipment to be turned on and off. The handle 16 and the rubber sleeve 17 facilitate the opening of the right side of the top cover 13.

[0045] Reference Figure 1 , Figure 3 and Figure 5A rubber ring 14 is fixedly connected to the bottom of the outer wall of the conveying pipe 8, and the outer wall of the rubber ring 14 is fixedly connected to the left side of the top wall of the mixing box 202; a rubber pad 21 is fixedly connected to the right side of the bottom wall of the top cover 13, and the rubber pad 21 has a concave shape; a support frame 18 is fixedly connected to both the left and right sides of the outer shell 1, and corner protectors 19 are fixedly connected to the front and rear sides of the bottom of the support frame 18.

[0046] Specifically, the bottom of the delivery pipe 8 is protected by the rubber ring 14, the sealing between the bottom right side of the top cover 13 and the outer shell 1 is improved by the rubber pad 21, and the stability of the device during operation is improved by the support frame 18 and the corner protector 19.

[0047] Working principle: Upon initial use, water is added to the inner tank 3 by opening the right side of the top cover 13. Simultaneously, the heating element 4 is activated to heat the water. Subsequently, the pressure pump 5 is activated, drawing water from the inner tank 3 through the circulation pipe 11. The heated water circulates through the circulation pipe 11 and the pressure pump 5, and is then transported through the connecting pipe 6 and the delivery pipe 8. Finally, the water is output through the connecting nozzle 9, agitating the water inside the inner tank 3. This combination of water flow from the connecting nozzle 9 and the circulating water through the circulation pipe 11 ensures complete water circulation, further improving water temperature uniformity and preventing uneven sampling at different locations. Due to inconsistent temperature effects, and by changing the path of the water flow from the booster pump 5 via the switching valve 7, the water inside the inner tank 3 is transported into the mixing tank 202, driving the impeller 203 to rotate. Simultaneously, cleaning agent is added to the mixing tank 202 via the injection valve 204, ensuring thorough mixing of the water and cleaning agent as the impeller 203 rotates. The liquid is then sprayed onto the outer wall of the inner tank 3 through the multi-hole nozzle 206 to remove dust adhesion. Finally, the liquid is discharged through the drain valve 20, improving the cleanliness of the space between the inner tank 3 and the outer shell 1, and enhancing the cleaning effect.

[0048] 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. An electric thermostatic water bath, comprising an outer shell (1), characterized in that: The inner bottom wall of the outer shell (1) is fixedly connected to the inner liner (3), the outer wall of the inner liner (3) is fixedly connected to the heating tube (4), the left front end of the outer shell (1) is fixedly connected to the pressure pump (5), the front side of the pressure pump (5) is connected to the connecting pipe (6), the rear end of the connecting pipe (6) is connected to the switching valve (7), the left end of the switching valve (7) is connected to the conveying pipe (8), the rear end of the conveying pipe (8) is connected to the connecting nozzle (9), the front side of the connecting nozzle (9) is fixedly connected to the top front wall of the inner liner (3), the inner bottom wall of the inner liner (3) is connected to the temperature sensor (10), the rear side of the inner liner (3) is connected to the circulation pipe (11), the top end of the circulation pipe (11) is connected to the bottom of the pressure pump (5), the top of the outer wall of the inner liner (3) is fixedly connected to the sealing plate (12), the top wall of the outer shell (1) is fixedly installed with the top cover (13), and the top of the switching valve (7) is provided with a mixing mechanism (2).

2. The electric thermostatic water bath according to claim 1, characterized in that: The mixing mechanism (2) includes a diverter pipe (201), the bottom end of which is connected to the top of the switching valve (7), the top end of which is connected to the front side of the housing (1), the top end of which is connected to a mixing tank (202), a flap wheel (203) is rotatably connected to the rear side of the inner wall of the mixing tank (202), an injection valve (204) is connected to the top wall of the mixing tank (202), a cleaning pipe (205) is connected to the right side of the mixing tank (202), a multi-hole nozzle (206) is connected to the rear end of the cleaning pipe (205), an mounting plate (207) is fixedly installed on the front side of the mixing tank (202), and a drain valve (20) is connected to the rear side of the housing (1).

3. The electric thermostatic water bath according to claim 2, characterized in that: The mixing mechanism (2) also includes a sealing ring (208), the outer wall of which is fixedly connected to the bottom of the outer wall of the injection valve (204).

4. The electric thermostatic water bath according to claim 1, characterized in that: A control switch (15) is fixedly connected to the left side of the top wall of the top cover (13). The control switch (15) is electrically connected to the heating tube (4) and the pressure pump (5) respectively.

5. An electric thermostatic water bath according to claim 1, characterized in that: A handle (16) is fixedly connected to the right side of the top wall of the top cover (13), and a rubber sleeve (17) is fixedly connected to the middle of the handle (16).

6. An electric thermostatic water bath according to claim 2, characterized in that: A rubber ring (14) is fixedly connected to the bottom of the outer wall of the conveying pipe (8), and the outer wall of the rubber ring (14) is fixedly connected to the left side of the top wall of the mixing box (202).

7. The electric thermostatic water bath according to claim 1, characterized in that: A rubber pad (21) is fixedly connected to the right side of the bottom wall of the top cover (13), and the rubber pad (21) has a concave shape.

8. The electric thermostatic water bath according to claim 1, characterized in that: The left and right sides of the outer shell (1) are fixedly connected to support frames (18), and the bottom front and rear sides of the support frames (18) are fixedly connected to corner protectors (19).

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