Constant-temperature water bath kettle for chemical laboratory

Abstract

The utility model relates to the field of experimental appliances, in particular to a constant-temperature water bath kettle for a chemical laboratory, which comprises a constant-temperature water bath kettle, a positioning groove, a limiting rod, a lifting component and the like, positioning grooves are symmetrically formed in the front side and the rear side of the inner wall of the constant-temperature water bath kettle, the positioning groove located in the rear side of the inner wall of the constant-temperature water bath kettle is fixedly connected with a limiting rod, and the lifting assembly used for preventing experimenters from being scalded by liquid in a container in the using process is installed on the constant-temperature water bath kettle. By means of the servo motor, the lead screw and the moving plate, the moving plate can move up and down, and experimenters can be prevented from being scalded by hot water in the container in the using process; through the drawing plate, the sliding block and the sliding groove, the function that an experimenter does not need to hold a medicine or a container to be heated by hand and does not need to place the medicine or the container on the top of the constant-temperature water bath kettle is achieved, and the effect of further increasing the anti-scald function of the constant-temperature water bath kettle is achieved.

Description

Technical Field

[0001] The utility model relates to the field of experimental tools, in particular to a constant temperature water bath pot for a chemical laboratory. Background Art

[0002] The constant temperature water bath is a commonly used equipment in laboratories. It is mainly used for distillation and providing a constant temperature environment. It is mainly composed of a container, an electric heater, a temperature control system and a temperature sensor. When the constant temperature water bath is working, an appropriate amount of pure water is injected into the container, and then the water is heated by the electric heater. The constant temperature is maintained by controlling the heating power of the electric heater. During the experiment, the constant temperature water bath needs to maintain the water temperature in the container at a higher temperature, and then the experimenter manually puts the experimental drugs into the container. During the entire process of taking the experimental drugs, the experimenter is more likely to be scalded by the high temperature water in the container. This operation method is not conducive to the experimental safety of the personnel. Therefore, it is of great significance to design a chemical laboratory constant temperature water bath that prevents the experimenter from being scalded by the water in the container during use. Utility Model Content

[0003] In order to overcome the disadvantage of the existing constant temperature water bath that the experimenters are easily scalded by the hot water in the container during use, the technical problem of the utility model is to provide a constant temperature water bath for chemical laboratories which can prevent the experimenters from being scalded by the hot water in the container during use.

[0004] The technical scheme of the utility model is: a constant temperature water bath for chemical laboratories, comprising a constant temperature water bath, a positioning groove, a limiting rod and a lifting assembly, wherein the positioning grooves are symmetrically provided on the front and rear sides of the inner wall of the constant temperature water bath, the positioning grooves located on the rear side of the inner wall of the constant temperature water bath are fixedly connected with the limiting rod, and the lifting assembly is installed on the constant temperature water bath to prevent experimenters from being scalded by liquid in the container during use.

[0005] Optionally, the lifting assembly includes a movable plate, a water filter hole, a screw and a servo motor. One side of the movable plate is slidably connected to the limit rod. The movable plate is provided with a plurality of water filter holes. A screw is rotatably connected in a front positioning groove of the constant temperature water bath pot. The front side of the movable plate and the screw are matched with threads. The servo motor is fixedly connected to the top of the constant temperature water bath pot, and the top of the screw is connected to the output shaft of the servo motor through a coupling.

[0006] Optionally, it also includes a pull-out component that further increases the anti-scalding function of the constant temperature water bath. The pull-out component includes a slide groove, a pull-out plate, a slider and a pull rod. The movable plate is provided with a slide groove, and the slider is slidably connected in the slide groove. The tops of the two sliders are fixedly connected to the bottom left side of the pull-out plate, and the pull rod is fixedly connected to the pull-out plate.

[0007] Optionally, a scale is also included, and the scale is fixedly connected to the left inner wall of the constant temperature water bath.

[0008] Optionally, a placement rack is also included, and the placement rack is fixedly connected to the top of the constant temperature water bath.

[0009] Optionally, a protective cover is also included, which is fixedly connected to the middle part of the front inner wall of the constant temperature water bath pot, and the width of the protective cover is greater than the width of the front positioning groove.

[0010] Optionally, an anti-skid pad is also included, and the anti-skid pad is fixedly connected to the bottom of the constant temperature water bath.

[0011] Beneficial effects of the utility model: the utility model realizes the function of up and down movement of the moving plate for placing medicines or containers to be heated through the servo motor, the lead screw and the moving plate, thereby preventing the experimenters from being scalded by the hot water in the container during use.

[0012] The utility model realizes the function that the experimenter does not need to hold the medicine to be heated or the container and does not need to place it on the top of the constant temperature water bath pot through the pull-out plate, the slide block and the slide groove, thereby achieving the effect of further enhancing the anti-scalding function of the constant temperature water bath pot.

[0013] The utility model realizes the function of observing the water level through the scale and achieves the effect of preventing excessive water addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the servo motor, lead screw and movable plate of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the pull-out plate, the sliding block and the sliding groove of the utility model.

[0017] Markings in the attached drawings: 1: constant temperature water bath, 2: positioning groove, 3: moving plate, 301: water filter hole, 4: screw rod, 5: servo motor, 6: limit rod, 7: slide groove, 8: pull-out plate, 9: slider, 10: pull rod, 11: scale, 12: placement rack, 13: protective cover, 14: anti-slip mat. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] A constant temperature water bath for chemical laboratories, such as Figure 1-3 As shown, it includes a constant temperature water bath 1, a positioning groove 2, a limit rod 6 and a lifting component. The positioning grooves 2 are symmetrically opened on the front and back sides of the inner wall of the constant temperature water bath 1. The positioning groove 2 located on the rear side of the inner wall of the constant temperature water bath 1 is fixedly connected to the limit rod 6. The lifting component used to prevent the experimenter from being scalded by the liquid in the container during use is installed on the constant temperature water bath 1. The lifting component includes a moving plate 3, a water filter hole 301, a screw 4 and a servo motor 5. One side of the moving plate 3 is slidably connected to the limit rod 6. The moving plate 3 is provided with a plurality of water filter holes 301. The screw 4 is rotatably connected in the front side positioning groove 2 of the constant temperature water bath 1. The front side of the moving plate 3 is matched with the screw 4 through threads. The servo motor 5 is fixedly connected to the top of the constant temperature water bath 1, and the top of the screw 4 is connected to the output shaft of the servo motor 5 through a coupling.

[0020] The experimenter first adds an appropriate amount of pure water into the constant temperature water bath 1, starts the heating function of the constant temperature water bath 1, and after the water temperature in the water bath reaches the set temperature, starts the servo motor 5. At this time, the servo motor 5 drives the screw rod 4 to rotate, and the screw rod 4 drives the movable plate 3 to move upward. After the height of the movable plate 3 is higher than the heating liquid surface, the servo motor 5 is turned off. At this time, the experimenter can place the medicine or container to be heated on the movable plate 3. After placement, start the servo motor 5. At this time, the servo motor 5 drives the screw rod 4 to rotate in the opposite direction, and the screw rod 4 drives the movable plate 3 to move downward until the medicine or container to be heated is completely immersed in water. The lifting component realizes the function of the movable plate 3 for placing the medicine or container to be heated to move up and down, thereby preventing the experimenter from being scalded by the hot water in the container during use.

[0021] like Figure 2 and Figure 3 As shown, it also includes a pull-out component that further increases the anti-scalding function of the constant temperature water bath 1. The pull-out component includes a slide groove 7, a pull-out plate 8, a slider 9 and a pull rod 10. The movable plate 3 is provided with a slide groove 7, and the slider 9 is slidably connected in the slide groove 7. The tops of the two sliders 9 are fixedly connected to the bottom left side of the pull-out plate 8, and the pull rod 10 is fixedly connected to the pull-out plate 8.

[0022] The experimenter can manually drag the pull rod 10 to the right, and the pull rod 10 drives the pull-out plate 8 to move to the right. At this time, the slider 9 fixed at the bottom of the pull-out plate 8 moves to the right in the slide groove 7. When the slider 9 in the slide groove 7 slides to the rightmost end of the slide groove 7, the experimenter can place the medicine or container to be heated on the pull-out plate 8. After the medicine or container to be heated is placed, the experimenter holds the pull rod 10 to push the pull-out plate 8 to the left to reset it. Through the pull-out assembly, the experimenter does not need to hold the medicine or container to be heated and does not need to place it on the top of the constant temperature water bath 1, thereby achieving the effect of further increasing the anti-scalding function of the constant temperature water bath 1.

[0023] like Figure 1 As shown, a scale 11 is also included, and the scale 11 is fixedly connected to the left inner wall of the constant temperature water bath pot 1.

[0024] The scale 11 can be used to observe the water level and prevent excessive water addition.

[0025] like Figure 1 As shown, a placement rack 12 is also included, and the placement rack 12 is fixedly connected to the top of the constant temperature water bath pot 1.

[0026] The placement rack 12 can be used to place beakers and test tubes, thereby preventing the desktop from being cluttered.

[0027] like Figure 1 As shown, a protective cover 13 is also included. The protective cover 13 is fixedly connected to the middle part of the front inner wall of the constant temperature water bath pot 1, and the width of the protective cover 13 is greater than the width of the front positioning groove 2.

[0028] The protective cover 13 can prevent the screw rod 4 from rusting and oxidizing due to long-term immersion in water, thereby achieving the effect of increasing the service life of the constant temperature water bath pot 1.

[0029] like Figure 1 As shown, an anti-skid pad 14 is also included, and the anti-skid pad 14 is fixedly connected to the bottom of the constant temperature water bath pot 1.

[0030] The anti-skid pad 14 can prevent the constant temperature water bath 1 from accidentally moving during operation, thereby increasing the stability of the constant temperature water bath 1.

[0031] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the utility model concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A constant temperature water bath for a chemical laboratory, comprising a constant temperature water bath (1), a positioning groove (2) and a limiting rod (6), wherein the positioning grooves (2) are symmetrically provided on the front and rear sides of the inner wall of the constant temperature water bath (1), and the positioning groove (2) located on the rear side of the inner wall of the constant temperature water bath (1) is fixedly connected to the limiting rod (6), wherein: The invention also includes a lifting assembly, which is used to prevent experimenters from being scalded by the liquid in the container during use, and is installed in the constant temperature water bath (1); the lifting assembly includes a moving plate (3), a water filter hole (301), a screw rod (4) and a servo motor (5); one side of the moving plate (3) is slidably connected to the limit rod (6); a plurality of water filter holes (301) are provided on the moving plate (3); a screw rod (4) is rotatably connected in the front positioning groove (2) of the constant temperature water bath (1); the front side of the moving plate (3) is engaged with the screw rod (4) through a thread; the servo motor (5) is fixedly connected to the top of the constant temperature water bath (1), and the top of the screw rod (4) is connected to the output shaft of the servo motor (5) through a coupling; it also includes a pull-out assembly for further increasing the anti-scalding function of the constant temperature water bath (1), the pull-out assembly includes a slide groove (7), a pull-out plate (8), a slider (9) and a pull rod (10), the movable plate (3) is provided with a slide groove (7), the slide groove (7) is slidably connected with the slider (9), the tops of the two sliders (9) are fixedly connected to the bottom left side of the pull-out plate (8), and the pull rod (10) is fixedly connected to the pull-out plate (8).

2. A constant temperature water bath for chemical laboratories according to claim 1, characterized in that: It also includes a scale (11), which is fixedly connected to the left inner wall of the constant temperature water bath (1).

3. A constant temperature water bath for chemical laboratories according to claim 2, characterized in that: It also includes a placement rack (12), which is fixedly connected to the top of the constant temperature water bath (1).

4. A constant temperature water bath for chemical laboratories according to claim 3, characterized in that: It also includes a protective sleeve (13), which is fixedly connected to the middle part of the front inner wall of the constant temperature water bath (1), and the width of the protective sleeve (13) is greater than the width of the front positioning groove (2).

5. A constant temperature water bath for chemical laboratories according to claim 4, characterized in that: It also includes an anti-skid pad (14), which is fixedly connected to the bottom of the constant temperature water bath (1).

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