Digital display constant temperature water bath

Abstract

The utility model relates to constant temperature water bath kettle technical field especially a digital display constant temperature water bath kettle, including the shell, the shell inner wall bottom surface four -sided all installs first support seat, four first support seat's top end jointly installed with the inner bag. The utility model's advantage lies in: through setting up the inner bag, filter and liquid pump, and the inside of inner bag is provided with four reflux pipes and water outlet pipe, and the reflux pipe and water outlet pipe are linked with filter and liquid pump through the hose, and the outer wall of reflux pipe is provided with a plurality of reflux holes, and the outer wall of water outlet pipe is provided with a plurality of water outlet holes, and then form the circulation passageway, heat the inner bag through the heating pipe, and the liquid pump is powered on and operates, makes the water in the inner bag enter to the inside of reflux pipe, then passes through filter and liquid pump in proper order, finally flows out from the water outlet hole on the water outlet pipe, forms the circulation flow, is convenient for making the water in the inner bag even heated, and effectively solves the problem existing in the prior art.

Description

Technical Field

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

[0002] A digital display constant temperature water bath is a commonly used laboratory device that heats and maintains a constant temperature of water within a container using an electronic control system. Compared to traditional pointer thermometers, digital displays offer advantages such as intuitive readings, high accuracy, and no visual errors. Users can directly set the temperature via buttons, making operation simple. Due to its precise and stable temperature control characteristics, digital display constant temperature water baths are widely used in various scientific experiments and industrial testing processes that require controlled reaction temperatures or sample incubation.

[0003] Traditional constant temperature water baths typically use static heating, resulting in uneven heating areas and inconsistent overall water temperature, which can negatively impact subsequent experiments. To address this, a digital display constant temperature water bath is proposed. By adding a water circulation path, the water flow can be circulated during the heating phase, improving heating uniformity. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a digital display constant temperature water bath, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a digital display constant temperature water bath, including an outer shell, wherein a first support seat is installed on each of the four sides of the bottom surface of the inner wall of the outer shell, and an inner liner is installed on the top of the four first support seats.

[0006] A liquid pump and a filter are installed on the bottom surface of the inner wall of the housing, and the two are connected in sequence by a hose. A temperature controller is installed at one corner of the side of the housing.

[0007] The inner wall of the inner liner is equipped with reflux pipes at the four corners, and the outer walls of the four pipes are provided with multiple reflux holes. The bottom surface of the inner wall of the inner liner is equipped with a water outlet pipe, the outer wall of the water outlet pipe is provided with multiple water outlet holes, the outer wall of the water outlet pipe is equipped with multiple guide rails, and the interior of the multiple guide rails is equipped with arc-shaped guide vanes. The bottom surface of the inner liner is equipped with a heating pipe.

[0008] The bottom ends of the four return pipes are connected to one end of the filter via pipes, and the bottom end of the outlet pipe is connected to the output end of the liquid pump via a flexible hose.

[0009] Preferably, in any of the above embodiments, buffer pads are installed at the four corners of the bottom surface of the outer shell, and a top cover is installed at the top of the outer shell. The middle of the top cover is recessed downward and fits against the top of the inner liner. Four placement holes are opened on the top surface of the top cover. This embodiment allows the top cover to be placed at the top of the outer shell and to cover the gap between the outer shell and the inner liner. The placement holes on the top surface of the top cover provide a place for external experimental equipment and support the experimental equipment, so that the bottom of the experimental equipment is in the water and there is a certain gap between it and the bottom surface of the inner wall of the inner liner to ensure smooth water flow and facilitate uniform heating of the experimental materials inside the experimental equipment.

[0010] Preferably, in any of the above embodiments, a second support base is installed at each of the four corners of the bottom surface of the inner wall of the outer shell. The tops of the four second support bases are stepped, and the tops of the four support bases are in contact with the bottom surface of the inner liner. This embodiment facilitates the stable support of the four corners of the inner liner by the four second support bases. The stepped tops of the four first support bases facilitate their contact with the four sides of the inner liner and limit the placement of the inner liner. The second support bases cooperate with the four first support bases to ensure the stability of the inner liner when it is placed and to support the weight of the inner liner, water, and experimental equipment.

[0011] Preferably, as described in any of the above solutions, a gap is left between the edge of the top of the inner liner and the inner wall of the outer shell, and handles are installed at the top of both sides of the inner liner. This solution facilitates a safe distance between the inner liner and the outer shell, while providing operating space for the operator. The operator can easily pass through the gap, grab the handle, and thus easily remove the inner liner for cleaning and maintenance.

[0012] Preferably, in any of the above solutions, a sealing gasket is provided between the bottom end of the water outlet pipe and the inner liner. The bottom end of the water outlet pipe penetrates the inner liner and is fitted with a locking nut. This solution makes the water outlet pipe a detachable structure, allowing operators to process it individually. The sealing gasket is annular and is installed at the contact point between the bottom end of the water outlet pipe and the inner liner. Tightening the locking nut compresses the sealing gasket, improving the seal and preventing leakage.

[0013] Preferably, in any of the above solutions, multiple guide rails are installed between the water outlet holes, and the ends of multiple arc-shaped guide vanes are T-shaped. This solution allows the ends of the arc-shaped guide vanes to slide inside the guide rails and be removed individually, thus facilitating installation and disassembly as needed. After installation, it facilitates the guidance of water flow direction, causing the water to flow out in a rotating direction, ensuring the uniformity of the water flow, and at the same time enabling uniform heating of external experimental equipment.

[0014] This utility model has the following advantages:

[0015] 1. This digital display constant temperature water bath, by setting up an inner tank, a filter, and a liquid pump, has four return pipes and an outlet pipe inside the inner tank. The return pipes and outlet pipes are connected to the filter and the liquid pump through flexible hoses. The outer wall of the return pipes has multiple return holes, and the outer wall of the outlet pipes has multiple outlet holes, thus forming a circulation path. The inner tank is heated by a heating element. When the liquid pump is powered on, water from inside the inner tank enters the interior of the return pipes, then passes through the filter and the liquid pump in sequence, and finally flows out from the outlet holes on the outlet pipes, forming a circulation flow. This facilitates uniform heating of the water inside the inner tank and effectively solves the problems existing in the prior art.

[0016] 2. This digital display constant temperature water bath, by setting an outer shell, has four first support seats and second support seats installed on the bottom surface of its inner wall, which facilitates stable support and limiting of the inner tank, so that the inner tank is evenly placed and easy to remove later. By setting a water outlet pipe, multiple guide rails are installed on its outside, and each guide rail has an arc-shaped guide plate installed inside. When the water flows out from multiple water outlets, the arc-shaped guide plate can guide the direction of the water flow, so that the water flows out evenly in the surrounding direction. After the heating material is placed in the inner tank, it is easy for the heating material to heat evenly. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the entire utility model;

[0018] Figure 2 This is an exploded structural diagram of the entire utility model;

[0019] Figure 3 This is a second-view structural diagram of the entire utility model;

[0020] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the outer shell of this utility model;

[0021] Figure 5 This is a first-view structural diagram of the inner liner of this utility model;

[0022] Figure 6 This is a second-view structural diagram of the inner liner of this utility model;

[0023] Figure 7 This is a schematic diagram of the water outlet pipe structure of this utility model.

[0024] In the diagram: 1-Outer shell, 2-Thermostat, 3-Return hole, 4-Return pipe, 5-Placement hole, 6-Inner liner, 7-Arc-shaped guide vane, 8-Top cover, 9-Handle, 10-Filter, 11-Liquid pump, 12-Heating tube, 13-First support base, 14-Water outlet pipe, 16-Water outlet, 17-Guide rail, 18-Locking nut, 19-Second support base. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0026] like Figures 1 to 7 As shown, a digital display constant temperature water bath includes an outer shell 1, and four first support seats 13 are installed on the four sides of the bottom surface of the inner wall of the outer shell 1. The top of the four first support seats 13 is jointly installed with an inner liner 6.

[0027] A liquid pump 11 and a filter 10 are installed on the bottom surface of the inner wall of the outer casing 1. The two are connected in sequence by a hose. The bends of the hose are connected by a T-junction and adhesive is applied to improve the sealing of the joint and prevent water leakage. A thermostat 2 is installed at one corner of the side of the outer casing 1.

[0028] A return pipe 4 is installed at each of the four corners of the inner wall of the inner liner 6, and multiple return holes 3 are opened on the outer wall of each of the four pipes. A water outlet pipe 14 is installed in the middle of the bottom surface of the inner wall of the inner liner 6, and multiple water outlet holes 16 are opened on the outer wall of the water outlet pipe 14. Multiple guide rails 17 are installed on the outer wall of the water outlet pipe 14, and arc-shaped guide vanes 7 are installed inside the multiple guide rails 17. A heating tube 12 is installed on the bottom surface of the inner liner 6. A temperature sensor (Pt100 platinum resistance) is installed on one side of the inner wall of the inner liner 6. The temperature sensor (Pt100 platinum resistance) is electrically connected to the thermostat 2 through a wire. It is best to use a shielded wire for the cable to reduce electromagnetic interference. In addition, to reduce heat dissipation of the inner liner, an insulation layer can be added to the outer wall of the inner liner 6 to protect the inner liner 6.

[0029] The bottom ends of the four return pipes 4 are all connected to one end of the filter 10 through pipes, and the bottom end of the outlet pipe 14 is connected to the output end of the liquid pump 11 through a hose.

[0030] The heating element 12 is electrically connected to the external mains circuit via a contactor. The thermostat 2 controls the operation of the contactor. The thermostat 2 uses a digital display screen (LCD screen) to directly and accurately display the actual temperature of the water bath and the target temperature set by the user.

[0031] Buffer pads are installed at the four corners of the bottom surface of the outer shell 1. A top cover 8 is installed at the top of the outer shell 1. The middle of the top cover 8 is recessed downward and fits against the top of the inner liner 6. Four placement holes 5 are opened on the top surface of the top cover 8. As an optional technical solution of this utility model, this makes it easy for the top cover 8 to be placed at the top of the outer shell 1 and to cover the gap between the outer shell 1 and the inner liner 6. The placement holes 5 opened on the top surface of the top cover 8 provide a place for external experimental equipment and support the experimental equipment so that the bottom of the experimental equipment is in the water and there is a certain gap between it and the bottom surface of the inner wall of the inner liner 6 to ensure smooth water flow and facilitate uniform heating of the experimental materials inside the experimental equipment. The placement holes 5 can be selected according to actual needs. The top cover 8 of the same size can be made with different sized placement holes 5 in the middle to accommodate experimental equipment of different sizes.

[0032] Second support seats 19 are installed at the four corners of the bottom surface of the inner wall of the outer shell 1. The tops of the four second support seats 19 are stepped, and the tops of the four seats are in contact with the bottom surface of the inner liner 6. As an optional technical solution of this utility model, this makes it easy for the four second support seats 19 to provide stable support for the four corners of the inner liner 6. The tops of the four first support seats 13 are stepped, which makes it easy to fit with the four sides of the inner liner 6 and limit the placement of the inner liner 6. The second support seats 19 cooperate with the four first support seats 13 to ensure the stability of the inner liner 6 when it is placed and to support the weight of the inner liner 6, water and experimental equipment.

[0033] A gap is left between the top edge of the inner liner 6 and the inner wall of the outer shell 1. Handles 9 are installed on the top of both sides of the inner liner 6. As an optional technical solution of this utility model, this makes it easier to leave a safe distance between the inner liner 6 and the outer shell 1, while providing operating space for the operator. It is easy for the operator to pass through the gap, grab the handle 9, and then easily remove the inner liner 6 for cleaning and maintenance.

[0034] A sealing gasket is provided between the bottom end of the water outlet pipe 14 and the inner liner 6. The bottom end of the water outlet pipe 14 penetrates the inner liner 6 and is equipped with a locking nut 18. As an optional technical solution of this utility model, this makes the water outlet pipe 14 a detachable structure, which is convenient for operators to process the water outlet pipe 14 separately. The sealing gasket is annular and is installed at the contact position between the bottom end of the water outlet pipe 14 and the inner liner 6. By tightening the locking nut 18, the sealing gasket can be pressed tightly to improve the sealing performance and prevent water leakage.

[0035] Multiple guide rails 17 are installed between the water outlet holes 16, and the ends of multiple arc-shaped guide vanes 7 are all T-shaped. As an optional technical solution of this utility model, this makes it easy for the ends of the arc-shaped guide vanes 7 to slide inside the guide rails 17 and can be removed separately, thus facilitating installation and disassembly as needed. After installation, it is easy to guide the water flow direction, so that the water flows out in a rotating direction, ensuring the uniformity of the water flow. At the same time, it can uniformly heat the external experimental equipment. When placing larger experimental equipment, the arc-shaped guide vanes 7 can be disassembled to avoid affecting the placement of the experimental equipment.

[0036] The following steps are required when using this digital display constant temperature water bath:

[0037] 1) When using, add water into the inner tank 6 and start the liquid pump 11 to add water to the specified height;

[0038] 2) Input the temperature parameters into the thermostat 2. The thermostat 2 controls the operation of the heating tube 12. The heating tube 12 generates Joule heat when energized, which heats the water inside the inner tank 6. At the same time, the temperature sensor measures the temperature of the water.

[0039] 3) When the liquid pump 11 is powered on, the water inside the inner tank 6 enters the inside of the return pipe 4, then passes through the filter 10 and the liquid pump 11 in sequence, and finally flows out from the water outlet 16 on the water outlet pipe 14, forming a circulation flow.

[0040] 4) When the water inside the inner tank 6 reaches the specified temperature, the temperature sensor sends a signal to the thermostat 2, and the thermostat 2 controls the heating tube 12 to cut off the power.

[0041] In summary, during use, the system incorporates an inner tank 6, a filter 10, and a liquid pump 11. The inner tank 6 contains four return pipes 4 and an outlet pipe 14, which are connected to the filter 10 and the liquid pump 11 via flexible hoses. The outer wall of the return pipes 4 has multiple return holes 3, and the outer wall of the outlet pipes 14 has multiple outlet holes 16, thus forming a circulation path. The inner tank 6 is heated by the heating element 12, and the liquid pump 11 is powered on, allowing water from inside the inner tank 6 to enter the return pipes 4. The water then passes through the filter 10 and the liquid pump 11, finally flowing out from the outlet holes 16 on the outlet pipes 14, creating a circulating flow. The water inside the inner tank 6 is heated evenly, effectively solving the problems existing in the prior art. By setting the outer shell 1, four first support seats 13 and second support seats 19 are installed on the bottom surface of its inner wall, which facilitates stable support and positioning of the inner tank 6, allowing the inner tank 6 to be placed evenly and to be easily removed later. By setting the water outlet pipe 14, multiple guide rails 17 are installed on its outside. Each guide rail 17 has an arc-shaped guide plate 7 installed inside. When the water flows out from the multiple water outlet holes 16, the arc-shaped guide plate 7 can guide the direction of the water flow, making the water flow evenly in the surrounding direction. After the heating material is put into the inner tank, it is easy for the heating material to be heated evenly.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A digital constant temperature water bath characterized by: Includes an outer shell (1), and the four sides of the bottom surface of the inner wall of the outer shell (1) are equipped with first support seats (13), and the top of the four first support seats (13) are jointly equipped with an inner liner (6). A liquid pump (11) and a filter (10) are installed on the bottom surface of the inner wall of the outer casing (1), and the two are connected in sequence by a hose. A thermostat (2) is installed at one corner of the side of the outer casing (1). The inner wall of the inner liner (6) is equipped with a return pipe (4) at each of the four corners, and the outer wall of each of the four is provided with multiple return holes (3). The middle of the bottom surface of the inner wall of the inner liner (6) is equipped with a water outlet pipe (14), the outer wall of the water outlet pipe (14) is provided with multiple water outlet holes (16), the outer wall of the water outlet pipe (14) is equipped with multiple guide rails (17), and the interior of each of the multiple guide rails (17) is equipped with an arc-shaped guide plate (7). The bottom surface of the inner liner (6) is equipped with a heating pipe (12). The bottom ends of the four return pipes (4) are connected to one end of the filter (10) through pipes, and the bottom end of the outlet pipe (14) is connected to the output end of the liquid pump (11) through a hose.

2. The digital constant temperature water bath according to claim 1, characterized in that: The four corners of the bottom surface of the outer shell (1) are equipped with buffer pads. The top of the outer shell (1) is equipped with a top cover (8). The middle part of the top cover (8) is recessed downward and fits against the top of the inner liner (6). The top surface of the top cover (8) has four placement holes (5).

3. A digital display constant temperature water bath according to claim 2, characterized in that: The outer shell (1) has a second support seat (19) installed at each of the four corners of the bottom surface of the inner wall. The top of each of the four second support seats (19) is stepped, and the top of each of the four supports is in contact with the bottom surface of the inner liner (6).

4. A digital display constant temperature water bath according to claim 3, characterized in that: There is a gap between the edge of the top of the inner liner (6) and the inner wall of the outer shell (1), and handles (9) are installed on the top of both sides of the inner liner (6).

5. A digital display constant temperature water bath according to claim 4, characterized in that: A sealing gasket is provided between the bottom end of the water outlet pipe (14) and the inner liner (6). The bottom end of the water outlet pipe (14) penetrates the inner liner (6) and a locking nut (18) is installed at its bottom end.

6. A digital display constant temperature water bath according to claim 5, characterized in that: Multiple guide rails (17) are installed between water outlet holes (16), and the ends of multiple arc-shaped guide vanes (7) are all T-shaped.

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