Constant-temperature water bath kettle

Abstract

The utility model discloses a constant-temperature water bath kettle which comprises a water bath kettle body, and the water bath kettle body comprises an inner container, an outer container and a liquid distribution buffer assembly, the interior of the inner container is divided into a working cavity and a buffering cavity through a partition supporting net plate, and a plurality of overflow ports are formed in the edge of the top side of the inner container. The outer container is arranged on the outer side of the inner container in a sleeving mode, a liquid returning cavity is formed between the outer container and the inner container, a liquid returning circulating assembly communicated with the buffering cavity is arranged in the liquid returning cavity, and the liquid returning circulating assembly is used for guiding water in the liquid returning cavity into the buffering cavity; the liquid distribution buffer assembly is arranged in the buffer cavity and is used for reducing the flowing speed of water entering the buffer cavity; compared with the prior art, the liquid return circulating assembly guides water in the liquid return cavity into the buffer cavity, and the liquid distribution buffer assembly slows down the flowing speed of water flowing into the buffer cavity, so that the temperature of the water in the inner container is uniformly distributed, the circulating speed is low, and a test tube placed in the working cavity cannot be disturbed.

Description

Technical Field

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

[0002] Constant temperature water bath is an essential tool for scientific research in biology, environmental protection, medicine, hygiene, chemical laboratories and fine chemical analysis fields. It is widely used in concentration, distillation and heating of chemical reagents.

[0003] In order to make the temperature distribution uniform in the water bath in the existing constant temperature water bath, an external force is directly used to form a circulating water flow in the water bath. The circulating water flow has a fast flow speed and will disturb the test tube. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a constant temperature water bath to solve the problem in the prior art that the fast water flow rate may cause disturbance to the test tube.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a constant temperature water bath, including a water bath body, the water bath body includes:

[0006] An inner tank, wherein the inner tank is divided into a working chamber and a buffer chamber which are distributed in upper and lower parts by a horizontally arranged partition support mesh plate, and a plurality of overflow ports are formed along the circumferential direction of the top side edge of the inner tank;

[0007] An outer liner, wherein the outer liner is sleeved on the outer side of the inner liner and a liquid return cavity outside the inner liner is formed between the outer liner and the inner liner, wherein a liquid return circulation component connected with the buffer cavity is arranged in the liquid return cavity, and the liquid return circulation component is used to guide the water in the liquid return cavity into the buffer cavity;

[0008] The liquid distribution buffer component is arranged in the buffer cavity and is used to slow down the flow speed of water entering the buffer cavity.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] When the constant temperature water bath is in use, excess water in the inner tank overflows from a number of overflow ports into the liquid return chamber, the liquid return circulation component guides the water in the liquid return chamber into the buffer chamber, and the liquid distribution buffer component slows down the flow rate of the water entering the buffer chamber, so that the water temperature in the inner tank is evenly distributed and the circulation speed is slow, which will not disturb the test tubes placed in the working chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0012] Figure 2 for Figure 1 A partial cross-sectional view of

[0013] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0014] The figure marks in the drawings of the specification include: inner liner 1, outer liner 2, partition support mesh plate 3, working chamber 4, buffer chamber 5, overflow port 6, return liquid chamber 7, liquid distribution buffer assembly 8, liquid distribution pipe 81, buffer mesh plate 82, liquid distribution hole 83, buffer spring 84, return liquid circulation assembly 9, return liquid device 91, support positioning plate 10, positioning hole 11, adjustment screw 12, guide rod 13. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below through specific implementation methods:

[0016] like Figure 1 and Figure 2 As shown, an embodiment of the utility model proposes a constant temperature water bath, including a water bath body, wherein the water bath body includes an inner tank 1, an outer tank 2 and a liquid distribution buffer assembly 8; wherein the inner tank 1 is divided into a working chamber 4 and a buffer chamber 5 distributed in the upper and lower parts by a horizontally arranged partition support mesh plate 3, and a plurality of overflow ports 6 are formed along the circumferential direction of the top edge of the inner tank 1; the outer tank 2 is sleeved on the outside of the inner tank 1 and a liquid return chamber 7 located outside the inner tank 1 is formed between the outer tank 2 and the inner tank 1, and a liquid return circulation assembly 9 connected to the buffer chamber 5 is arranged in the liquid return chamber 7, and the liquid return circulation assembly 9 is used to guide the water in the liquid return chamber 7 into the buffer chamber 5; the liquid distribution buffer assembly 8 is arranged in the buffer chamber 5 and is used to slow down the flow rate of water entering the buffer chamber 5.

[0017] When the constant temperature water bath is in use, excess water in the inner tank 1 overflows from a plurality of overflow ports 6 into the liquid return chamber 7, the liquid return circulation component 9 guides the water in the liquid return chamber 7 into the buffer chamber 5, and the liquid distribution buffer component 8 slows down the flow rate of the water entering the buffer chamber 5, so that the temperature of the water in the inner tank 1 is evenly distributed and the circulation speed is slow, which will not disturb the test tubes placed in the working chamber 4.

[0018] In this embodiment, the inner pot 1 is provided with an existing heating component, and the outer wall of the outer pot 2 is provided with an existing temperature regulating component connected to the heating component, which is not shown in the drawings. The inner pot 1 is provided inside the outer pot 2, and the outer bottom of the inner pot 1 and the inner bottom of the outer pot 2 are connected by a plurality of support columns arranged at intervals, and the outer side of the inner pot 1 and the inner side of the outer pot 2 are the liquid return chamber 7.

[0019] The outer tank 2 is also provided with a liquid replenishing pipe for replenishing liquid into the liquid return cavity 7, so that water can continuously overflow from the overflow port 6 during operation to form slow circulating water in the inner tank 1, so that the temperature in the inner tank 1 can be evenly distributed.

[0020] In order to better understand the present solution, the structures of the liquid distribution buffer component 8 and the liquid return circulation component 9 will be optimized below.

[0021] like Figure 2 as well as Figure 3 As shown, according to another embodiment of the utility model, a constant temperature water bath pot, wherein the liquid distribution buffer assembly 8 includes a liquid distribution tube 81 and a buffer mesh plate 82; wherein the liquid distribution tube 81 is horizontally arranged at the bottom of the buffer cavity 5 and is connected to the liquid return circulation assembly 9, and a plurality of liquid distribution holes 83 are evenly distributed on the top of the liquid distribution tube 81 along its length direction; the buffer mesh plate 82 is located in the buffer cavity 5 and above the liquid distribution tube 81, and the buffer mesh plate 82 is connected to the partition support mesh plate 3 by a plurality of buffer springs 84.

[0022] When in use, the liquid return circulation component 9 guides the water in the liquid return chamber 7 into the liquid distribution pipe 81 and evenly distributes it to the buffer chamber 5 through a plurality of liquid distribution holes 83, thereby reducing the impact force generated by the water entering the buffer chamber 5 from the liquid distribution pipe 81; the water entering the buffer chamber 5 impacts the buffer mesh plate 82 for buffering to reduce the flow rate of the water, and then the water slowly passes through the mesh holes on the buffer mesh plate 82 and the partition support mesh plate 3 to enter the working chamber 4, and the water at the top of the working chamber 4 flows into the liquid return chamber 7 from the overflow port 6 to establish a circulation.

[0023] In order to further reduce the impact force generated by water flowing from the liquid distribution hole 83 in the liquid distribution tube 81 into the buffer chamber 5, the diameter of the liquid distribution hole 83 is gradually increased from its liquid inlet end to the liquid outlet end, so that the liquid distribution hole 83 can relieve the pressure of the water sprayed from the liquid distribution tube 81, thereby further reducing the speed of water flowing in the inner tank 1.

[0024] like Figure 2 As shown, according to another embodiment of the utility model, a constant temperature water bath pot, wherein the liquid return circulation component 9 includes a liquid return device 91, the liquid inlet pipe of the liquid return device 91 extends to the bottom of the liquid return chamber 7 and a liquid inlet space is reserved, a filter screen is arranged on the liquid inlet pipe, and the liquid outlet pipe of the liquid return device 91 extends into the buffer chamber 5 and is connected to the liquid distribution buffer component 8.

[0025] In this embodiment:

[0026] The return device 91 is a micro water pump, which guides the water in the return liquid chamber 7 into the buffer chamber 5 as the power of water circulation; the arrangement of the liquid inlet pipe of the return liquid device 91 enables it to guide the water into the buffer chamber 5 to establish water circulation even when the amount of water in the return liquid chamber 7 is relatively small; the filter screen is used to filter the water drawn into the return liquid device 91. Among them, the liquid outlet pipe of the return liquid device 91 extends into the buffer chamber 5 and is specifically connected with the liquid distribution pipe 81, so that the water in the return liquid chamber 7 is guided into the liquid distribution pipe 81 and evenly distributed to the buffer chamber 5.

[0027] In order to stably place the test tube in the working chamber 4, Figure 2 As shown, according to another embodiment of the utility model, in the constant temperature water bath, a support positioning plate 10 is horizontally arranged in the working chamber 4, and a plurality of positioning holes 11 are evenly distributed on the support positioning plate 10.

[0028] When in use, the bottom of the test tube passes through any positioning hole 11 and abuts against the partition support mesh plate 3, and the middle of the test tube is supported by the support positioning plate 10 to stably place the test tube in the working chamber 4 for water bath heating. The support positioning plate 10 can also be a mesh plate, which is conducive to the flow of water.

[0029] In order to provide good support for test tubes of different lengths, the support positioning plate 10 is arranged to slide in the working chamber 4 along the vertical direction, and the support positioning plate 10 is connected to the partition support mesh plate 3 through an adjustment component, which is used to drive the support positioning plate 10 to move.

[0030] The support positioning plate 10 is moved by adjusting the assembly, thereby changing the distance between the support positioning plate 10 and the separating support mesh plate 3, so that the support positioning plate 10 can meet the requirements of selecting a reasonable support position for test tubes of different lengths.

[0031] Based on the above scheme:

[0032] The adjustment assembly includes an adjustment screw 12 and a guide rod 13, wherein the adjustment screw 12 is vertically arranged and one end of which is rotatably connected to the partition support mesh plate 3, and the adjustment screw 12 is also threadedly connected to the support positioning plate 10; the guide rod 13 is vertically arranged and one end of which is rotatably connected to the partition support mesh plate 3, and the guide rod 13 is also slidably connected to the support positioning plate 10.

[0033] In this embodiment:

[0034] The adjusting screw 12 and the guide rod 13 are specifically distributed at both ends of the partition support mesh plate 3 to avoid restrictions on the placement of the test tube into the working chamber 4. By rotating the adjusting screw 12, the guide rod 13 guides the support positioning plate 10 to move closer to or away from the partition support mesh plate 3, thereby adjusting the distance between the support positioning plate 10 and the partition support mesh plate 3 according to needs.

[0035] When using this solution:

[0036] First, start the liquid return device 91, and add a certain amount of water into the liquid return chamber 7 to make the water flow out from the overflow port 6 to form a cycle;

[0037] Then start the heating component and adjust the water bath temperature;

[0038] Then rotate the adjusting screw rod 12 to adjust the distance between the supporting positioning plate 10 and the separating supporting mesh plate 3;

[0039] When the water temperature in the working chamber 4 reaches the set temperature, the bottom of the test tube is passed through the positioning hole 11 and abutted against the partition support mesh plate 3 to perform water bath heating.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A constant temperature water bath, comprising a water bath body, characterized in that: The water bath body comprises: An inner tank, wherein the inner tank is divided into a working chamber and a buffer chamber which are distributed in upper and lower parts by a horizontally arranged partition support mesh plate, and a plurality of overflow ports are formed along the circumferential direction of the top side edge of the inner tank; An outer liner, wherein the outer liner is sleeved on the outer side of the inner liner and a liquid return cavity outside the inner liner is formed between the outer liner and the inner liner, wherein a liquid return circulation component connected with the buffer cavity is arranged in the liquid return cavity, and the liquid return circulation component is used to guide the water in the liquid return cavity into the buffer cavity; The liquid distribution buffer component is arranged in the buffer cavity and is used to slow down the flow speed of water entering the buffer cavity.

2. A constant temperature water bath according to claim 1, characterized in that: The liquid distribution buffer assembly comprises: A liquid distribution pipe, which is horizontally arranged at the bottom of the buffer chamber and is connected to the liquid return circulation component, and a plurality of liquid distribution holes are evenly distributed on the top of the liquid distribution pipe along its length direction; The buffer mesh plate is located in the buffer cavity and above the liquid distribution pipe. The buffer mesh plate is connected to the partition support mesh plate through a plurality of buffer springs.

3. A constant temperature water bath according to claim 2, characterized in that: The diameter of the liquid distribution hole gradually increases from the liquid inlet end to the liquid outlet end.

4. A constant temperature water bath according to claim 1, characterized in that: The liquid return circulation component comprises: The liquid return device has a liquid inlet pipe extending to the bottom of the liquid return cavity and a liquid inlet space reserved therefor, a filter screen is arranged on the liquid inlet pipe, and a liquid outlet pipe of the liquid return device extends into the buffer cavity and is connected to the liquid distribution buffer assembly.

5. A constant temperature water bath according to claim 1, characterized in that: A support positioning plate is horizontally arranged in the working cavity, and a plurality of positioning holes are evenly distributed on the support positioning plate.

6. A constant temperature water bath according to claim 5, characterized in that: The support positioning plate is arranged in the working cavity in a sliding manner along the vertical direction, and the support positioning plate is connected to the partition support mesh plate through an adjustment component, and the adjustment component is used to drive the support positioning plate to move.

7. A constant temperature water bath according to claim 6, characterized in that: The adjustment component comprises: An adjusting screw rod, which is arranged vertically and has one end rotatably connected to the partition support mesh plate, and is also threadedly connected to the support positioning plate; A guide rod is arranged vertically and one end of the guide rod is rotatably connected to the partition support mesh plate. The guide rod is also slidably connected to the support positioning plate.

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