A water bath
By introducing an adjustable-height connector structure into the water bath, the problem of a fixed distance between the ring and the bottom of the water bath container was solved, ensuring heating uniformity and stability, and improving experimental efficiency and data reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 付红霞
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-16
AI Technical Summary
The distance between the ring and the bottom of the water bath in existing water baths is fixed, which cannot accommodate beakers of different heights, resulting in poor heating effect or affecting stability.
By incorporating an adjustable-height connector within the water bath, utilizing a sliding groove and threaded hole structure, the connector's height can be adjusted according to the beaker's height, ensuring stability and uniform heating.
It enables adaptation to the height of beakers of different sizes without changing the original heating and rotation functions, thereby improving the efficiency of laboratory equipment and the reliability of experimental data.
Smart Images

Figure CN224358476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical experimental equipment, specifically to a water bath. Background Technology
[0002] Water baths are widely used for microbial culture, drying, concentration, distillation, impregnation of chemical reagents, pharmaceuticals and biological agents. They can also be used for constant temperature heating and other temperature tests. Shaking can also be added. They are an essential tool for education and research in biological, genetic, virological, aquatic, environmental, medical, health, and biochemical laboratories and analytical rooms.
[0003] Referring to existing technology, a constant temperature water bath (CN222518633U) includes: an outer shell and a water bath container disposed inside the outer shell. A heating coil is disposed inside the outer shell corresponding to the outside of the water bath container. The water bath container has a cylindrical structure and is rotatable about its axis. An annular disk is coaxially mounted on its top, with the inner diameter of the annular disk being smaller than the inner diameter of the water bath container. The water bath container is driven by a motor. Multiple sets of connectors are arranged in a circumferential array around the outer shell. These connectors are all movable along the normal direction of the water bath container. The connectors are located above the annular disk, and each connector has a ring at its front end. The inner diameter of the ring is larger than the outer diameter of the beaker but smaller than the outer diameter of the outer convex edge of the beaker's top. The distance between the top surface of the ring and the bottom surface of the water bath container is greater than the height of the beaker. The ring is located within the inner circle of the annular disk, and the axis of the ring is parallel to the axis of the annular disk. This design can effectively improve the heating uniformity of the test substance and help enhance the reaction effect.
[0004] Referring to existing technology Figure 1 Because the distance between the top surface of the annular ring and the bottom surface of the water bath is fixed, it cannot accommodate beakers of different heights. If the beaker is too short, the distance between its bottom and the bottom of the water bath will be insufficient, and it may touch the bottom of the container, resulting in poor heating effect; if the distance is too high, the top of the beaker will exceed the range of the annular ring, affecting stability. Utility Model Content
[0005] The present invention aims to provide a water bath tank to solve the problem that the distance between the ring and the bottom surface of the water bath container is fixed and cannot be adjusted in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A water bath tank includes an outer shell and a water bath container, and also includes a motor for driving the water bath container to rotate; the outer periphery of the outer shell is provided with a plurality of vertical sliding grooves along the circumferential direction, and also includes a sleeve fitted around the outer periphery of the outer shell, the sleeve being fixedly provided with a slider that is slidably connected to the sliding grooves, the outer shell being provided with a plurality of threaded holes evenly spaced along the vertical direction, the threaded holes and the slider being staggered, the sleeve being provided with fixing holes that are alternately aligned with the plurality of threaded holes, the fixing holes and the threaded holes being fixed together by screws, and the top of the sleeve being provided with a plurality of connectors that extend into the water bath container evenly spaced along the circumferential direction.
[0008] The working principle and beneficial effects of this utility model:
[0009] In this application, multiple sets of connectors are installed on the inner wall of the housing. The housing and the outer shell are slidably connected by a slider and multiple vertical grooves. The connectors move up and down synchronously with the housing. The height of the connectors is adjusted by sliding the housing up and down to adapt to the height of the beaker. During the sliding of the housing, the fixing hole passes through multiple threaded holes on the outer shell in sequence. When the fixing hole is completely aligned with the threaded hole at the target height, the screw is inserted and tightened. The end of the screw is threaded into the inner wall of the threaded hole, fixing the housing at a specific height position on the outer shell.
[0010] This application replaces the fixed-height connector in the prior art with an adjustable-height component. Without changing the core heating and rotation function of the original water bath, the height of the connector can be adjusted to adapt to the height of the beaker, thereby improving the efficiency of laboratory equipment and the reliability of experimental data.
[0011] Preferably, the multiple threaded holes are spaced 5cm, 10cm, or 15cm apart in the vertical direction. By combining the fixed holes with threaded holes at different intervals, multi-level height adjustment can be achieved, adapting to over 90% of standard beakers, measuring cylinders, and other containers on the market.
[0012] Preferably, the outer casing has two sets of vertical sliding grooves, each set including two parallel sliding grooves. The casing is slidably connected to the sliding grooves via ball bearings and sliders. The ball bearings convert sliding friction into rolling friction, reducing adjustment resistance and making operation smoother, especially suitable for heavy-duty scenarios.
[0013] Preferably, the connector includes a connecting rod fixed to the top of the outer shell, and the connecting rod is fixedly connected to a ring located on the water bath container.
[0014] Preferably, a flexible waterproof strip is installed on the top of the chute. The waterproof strip prevents water vapor and splashes from the water bath from entering the chute.
[0015] Preferably, the number of fixing holes is multiple, and they are evenly distributed along the vertical direction of the casing. Using multiple screws to fix the casing provides a better fixing effect. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of a water bath tank according to this application;
[0017] Figure 2 for Figure 1 A schematic diagram of the structure after the middle casing has been repositioned;
[0018] Figure 3 for Figure 1 Vertical cross-section along the central axis;
[0019] Figure 4 for Figure 2 Vertical cross-section along the central axis. Detailed Implementation
[0020] The following detailed description illustrates the specific implementation method:
[0021] The reference numerals in the accompanying drawings include: motor 1, water bath container 2, slider 3, slide groove 4, connector 5, sleeve 6, beaker 7, outer shell 8, threaded hole 9, fixing hole 10, and screw 11.
[0022] In the following statements, directional terms such as "left," "right," "up," and "down" are based on the directions shown in the diagram. In practice, if the corresponding structures are changed in the same direction based on the direction while maintaining their relative positions, it will not affect the implementation of the plan.
[0023] Example: A water bath, such as Figure 1 As shown, the device includes a housing 8 and a water bath container 2. A motor 1 is fixedly mounted on the housing 8, and the movable end of the motor 1 drives the water bath container 2 to rotate. Vertical grooves 4 are provided on the left and right sides of the outer periphery of the housing 8. The device also includes a sleeve 6 that fits onto the outer periphery of the housing 8, and a slider 3 that is slidably connected to the grooves 4 is fixedly mounted on the sleeve 6.
[0024] like Figure 2 As shown, the front and rear sides of the outer shell 8 are provided with three threaded holes 9 evenly spaced in the vertical direction. The sleeve 6 is provided with fixing holes 10 that are alternately aligned with the three threaded holes 9. The fixing holes 10 and the threaded holes 9 are fixed by screwing in screws 11. The top of the sleeve 6 is provided with four sets of connectors 5 evenly spaced in the circumferential direction. The specific structure of the connectors 5 refers to the existing technology of a constant temperature water bath box, CN222518633U.
[0025] like Figure 2 and Figure 4As shown, in this application, the connector 5 is fixedly installed on the top of the housing 6. The housing 6 and the outer shell 8 are slidably connected by the slider 3 and the vertical groove 4. The connector 5 moves up and down synchronously with the housing 6. The height of the connector 5 is adjusted by sliding the housing 6 up and down to adapt to the height of beakers 7 of different specifications. During the sliding process of the housing 6, the fixing hole 10 passes through the threaded hole 9 on the outer shell 8 in sequence. When the fixing hole 10 is completely aligned with the threaded hole 9 at the target height, the screw 11 is screwed in and tightened. The end of the screw 11 is threaded with the inner wall of the threaded hole 9, fixing the housing 6 at a specific height position of the outer shell 8.
[0026] This application adjusts the height of the connector 5 to adapt to the height of the beaker 7 without changing the core heating and rotation function of the original water bath, thereby improving the efficiency of laboratory equipment and the reliability of experimental data.
[0027] In a preferred embodiment, there are multiple fixing holes 10. Multiple screws 11 are used to secure the housing 6, resulting in a better fixing effect.
[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as screws 11, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
Claims
1. A water bath tank, comprising an outer shell and a water bath container, and further comprising a motor for driving the water bath container to rotate; characterized in that: The outer periphery of the outer shell is provided with multiple vertical sliding grooves along the circumferential direction, and also includes a sleeve fitted around the outer periphery of the outer shell. The sleeve is fixedly provided with a slider that is slidably connected to the sliding groove. The outer shell is provided with multiple threaded holes evenly spaced along the vertical direction. The threaded holes and the slider are staggered. The sleeve is provided with fixing holes that are alternately aligned with the multiple threaded holes. The fixing holes and the threaded holes are fixed by screws. The top of the sleeve is provided with multiple connectors that extend into the water bath container evenly spaced along the circumferential direction.
2. The water bath tank according to claim 1, characterized in that: The multiple threaded holes are spaced 5cm, 10cm or 15cm apart in the vertical direction.
3. The water bath tank according to claim 2, characterized in that: The outer shell has two sets of vertical sliding grooves evenly distributed, each set of sliding grooves includes two parallel sliding grooves, and the shell is slidably connected to the sliding grooves by ball bearings and sliding blocks.
4. The water bath tank according to claim 3, characterized in that: A flexible, waterproof strip is installed on the top of the chute.
5. The water bath tank according to claim 4, characterized in that: The number of fixing holes is multiple, and they are evenly distributed along the vertical direction of the casing.
6. The water bath tank according to claim 5, characterized in that: The connector includes a connecting rod fixed to the top of the outer shell, and the connecting rod is fixedly connected to a ring located on the water bath container.