Laboratory water bath constant temperature equipment

Abstract

The utility model discloses laboratory water bath constant temperature equipment which comprises a rack, a preheating circulation mechanism, a heat preservation mechanism and a stable fixing mechanism, a support is arranged at the bottom end of the rack, a PLC is arranged at the front end of the rack, and the laboratory water bath constant temperature equipment further comprises the preheating circulation mechanism, the heat preservation mechanism and the stable fixing mechanism. The heat preservation mechanism is arranged at the side end of the preheating circulation mechanism, and the stable fixing mechanism is arranged in the middle of the heat preservation mechanism. The preheating circulating mechanism comprises a first electric heating wire and a first circulating pump; according to the laboratory water bath constant-temperature equipment, water flow around a test tube is relatively gentle through the first limiting circular plate, the fixed sliding rod, the rubber cushion and the second limiting circular plate, so that stability of a sample in the test tube is guaranteed, test tube oscillation caused by water flow is reduced to a certain extent in cooperation with the barrier plate, and the accuracy of an experimental result is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of water bath constant temperature technology, specifically a laboratory water bath constant temperature device. Background Technology

[0002] A water bath thermostat is a device used to control and maintain a stable water temperature. It is an experimental instrument that uses water as a heat transfer medium to maintain a constant temperature environment. Its basic principle is based on the high heat capacity of water; when water absorbs or releases a large amount of heat, its own temperature changes relatively slowly. The device contains a heating element, which raises the water temperature when turned on.

[0003] Existing equipment avoids local temperature fluctuations and hot spots by setting up a stirring device or using water circulation, thus providing a more stable and reliable constant temperature environment for experiments. Although the stirring mechanism can promote water flow and improve temperature uniformity to a certain extent, the stirring mechanism is also limited by the internal shape of the container, which may result in dead zones of stirring, leading to uneven local temperature.

[0004] To solve the above problems, water circulation is often chosen to improve temperature uniformity by utilizing the flow of water and to avoid uneven temperature caused by dead zones. However, direct drainage from the drain outlet and the flow of water may cause impact on the test tube, causing it to shake and affecting the experiment.

[0005] Therefore, this utility model provides a laboratory water bath constant temperature device to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a laboratory water bath constant temperature device, which solves the aforementioned problems.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a laboratory water bath constant temperature device, including a frame, a support at the bottom of the frame, a PLC controller at the front of the frame, and further including a preheating circulation mechanism, a heat preservation mechanism, and a stabilizing and fixing mechanism. The preheating circulation mechanism is disposed on the frame, the heat preservation mechanism is disposed on the side of the preheating circulation mechanism, and the stabilizing and fixing mechanism is disposed in the middle of the heat preservation mechanism.

[0008] The preheating circulation mechanism includes a first electric heating wire and a first circulation pump. A pretreatment chamber is provided inside the frame. The first circulation pump is installed inside the pretreatment chamber. A first thermal sensor is fixedly connected to the side wall of the pretreatment chamber.

[0009] The heat preservation mechanism includes a second heating wire, which is mounted on a frame. A heating container is fixedly connected to the frame. The bottom of the heating container is in contact with the second heating wire. A baffle plate is fixedly connected to the inner side of the heating container. A water inlet is provided on the heating container.

[0010] The stabilizing and fixing mechanism includes a first limiting circular plate and a test tube. A plurality of fixed sliding rods are fixedly connected to the first limiting circular plate. A second limiting circular plate is fixedly connected to the end of the fixed sliding rod away from the first limiting circular plate. A rubber pad is fixedly connected to the middle of the second limiting circular plate. A rotating circular plate is rotatably connected to the second limiting circular plate.

[0011] Preferably, the preheating circulation mechanism further includes a connecting block, which is fixedly connected to the frame, and a first heat-conducting plate is provided inside the pretreatment chamber.

[0012] Preferably, the first electric heating wire is disposed at the bottom end of the first heat-conducting plate, a water injection pipe is provided at the side end of the frame, and the first circulating pump is connected to the hole of the connecting block through a pipe.

[0013] Preferably, the heat preservation mechanism further includes a connecting cover, the heating container is fitted with a connecting member, the connecting member has handle openings at both ends, and the connecting cover is fitted with the connecting member.

[0014] Preferably, a first connecting buckle assembly is fixedly connected to the side end of the connecting cover, a second connecting buckle assembly is fixedly connected to the side end of the heating container, an output pipe is connected to the side end of the frame, the first connecting buckle assembly can be connected to the second connecting buckle assembly, and a second thermal sensor is fixedly connected to the side end of the heating container.

[0015] Preferably, the connector has a first connection port, a third opening, and a second connection port.

[0016] Preferably, a hand-held block is fixedly connected to the rotating circular plate, a support rod is fixedly connected to the lower side of the rotating circular plate, the fixed slide rod is slidably connected in the second connection port, the test tube is placed on the first limiting circular plate, and the test tube is placed in the first connection port.

[0017] Beneficial effects:

[0018] This invention provides a laboratory water bath temperature control device. Compared with the prior art, it has the following advantages:

[0019] (1) A laboratory water bath constant temperature device, which, through a first limiting circular plate, a fixed sliding rod, a rubber pad and a second limiting circular plate, makes the water flow around the test tube relatively gentle, thereby ensuring the stability of the sample in the test tube. With the help of the baffle plate, it reduces the test tube vibration caused by water flow to a certain extent, which is beneficial to the accuracy of the experimental results.

[0020] (2) A laboratory water bath constant temperature device, which, through the cooperation of a preheating circulation mechanism and a heat preservation mechanism, enables hot water circulation, thereby ensuring the uniformity of the water bath environment temperature, reducing experimental waiting time, and improving experimental efficiency. Attached Figure Description

[0021] Figure 1 This is a side view of the overall device of this utility model;

[0022] Figure 2 This is an unfolded view of the overall device of this utility model;

[0023] Figure 3 This is a side view of the stabilizing and fixing mechanism structure of this utility model;

[0024] Figure 4 This is a structural diagram of the stabilizing and fixing mechanism of this utility model;

[0025] Figure 5 This is a side view of the connector structure of this utility model;

[0026] Figure 6 This is a side view of the heating container structure of this utility model;

[0027] Figure 7 This is a partial structural diagram of the heat preservation mechanism of this utility model;

[0028] Figure 8 This is an internal sectional view of the frame of this utility model.

[0029] In the diagram: 1. Frame; 2. Support; 3. PLC controller;

[0030] Preheating circulation mechanism: 41. Pretreatment chamber; 42. First heat-conducting plate; 43. First electric heating wire; 44. First circulation pump; 45. First thermal sensor; 46. Connecting block;

[0031] Insulation mechanism: 51. Second heating wire; 52. Heating container; 53. Baffle plate; 54. Connector; 55. Handle opening; 56. Connecting cover; 57. First connecting buckle assembly; 58. Second connecting buckle assembly; 59. Second thermal sensor; 591. Water inlet; 592. Output pipe;

[0032] Stable fixing mechanism: 61. First connection port; 62. Second connection port; 63. Third opening; 64. First limiting circular plate; 65. Test tube; 66. Fixed slide rod; 67. Support rod; 68. Rubber pad; 69. Second limiting circular plate; 691. Rotating circular plate; 692. Hand block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0034] Example 1:

[0035] Please see Figure 1-8 A laboratory water bath constant temperature device includes a frame 1, a support 2 at the bottom of the frame 1, a PLC controller 3 at the front of the frame 1, and also includes a preheating circulation mechanism, a heat preservation mechanism and a stabilizing and fixing mechanism. The preheating circulation mechanism is set on the frame 1, the heat preservation mechanism is set on the side of the preheating circulation mechanism, and the stabilizing and fixing mechanism is set in the middle of the heat preservation mechanism.

[0036] The preheating circulation mechanism includes a first electric heating wire 43 and a first circulation pump 44. A pretreatment chamber 41 is provided in the frame 1. The first circulation pump 44 is installed in the pretreatment chamber 41. A first thermal sensor 45 is fixedly connected to the side wall of the pretreatment chamber 41.

[0037] The heat preservation mechanism includes a second heating wire 51, which is mounted on a frame 1. A heating container 52 is fixedly connected to the frame 1. The bottom end of the heating container 52 is in contact with the second heating wire 51. A baffle plate 53 is fixedly connected to the inner side of the heating container 52. A water inlet 591 is provided on the heating container 52.

[0038] The stabilizing and fixing mechanism includes a first limiting circular plate 64 and a test tube 65. Several fixed sliding rods 66 are fixedly connected to the first limiting circular plate 64. A second limiting circular plate 69 is fixedly connected to one end of the fixed sliding rod 66 away from the first limiting circular plate 64. A rubber pad 68 is fixedly connected to the middle of the second limiting circular plate 69. A rotating circular plate 691 is rotatably connected to the second limiting circular plate 69.

[0039] The preheating circulation mechanism also includes a connecting block 46, which is fixedly connected to the frame 1, and a first heat-conducting plate 42 is provided in the pretreatment chamber 41.

[0040] The first electric heating wire 43 is located at the bottom of the first heat-conducting plate 42, and a water injection pipe is provided at the side end of the frame 1. The first circulating pump 44 is connected to the hole of the connecting block 46 through the pipe.

[0041] The heat preservation mechanism also includes a connecting cover 56, a connecting member 54 is fitted into the heating container 52, and handle openings 55 are provided at both ends of the connecting member 54. The connecting cover 56 is fitted into the connecting member 54.

[0042] A first connecting buckle assembly 57 is fixedly connected to the side end of the connecting cover 56, a second connecting buckle assembly 58 is fixedly connected to the side end of the heating container 52, an output pipe 592 is connected to the side end of the frame 1, the first connecting buckle assembly 57 can be connected to the second connecting buckle assembly 58, and a second thermal sensor 59 is fixedly connected to the side end of the heating container 52.

[0043] The connector 54 has a first connection port 61, a third opening 63, and a second connection port 62.

[0044] A hand-held block 692 is fixedly connected to the rotating circular plate 691, and a support rod 67 is fixedly connected to the lower side of the rotating circular plate 691. A fixed sliding rod 66 is slidably connected inside the second connection port 62. A test tube 65 is placed on the first limiting circular plate 64 and inside the first connection port 61.

[0045] Working process: Before the experiment, water is injected into the pretreatment chamber 41 through the water injection pipe. The first electric heating wire 43 is activated, which heats the first heat-conducting plate 42. Through the heat conduction of the first electric heating wire 43, the water in the pretreatment chamber 41 is heated. After the water is heated, the temperature is detected by the first thermal sensor 45 and maintained within the specified temperature range. The first circulation pump 44 then transports the hot water sequentially through the pipe, connecting block 46, and water inlet 591 to the heating container 52. Finally, the second heating wire 51 is activated to heat the water. The bottom of container 52 is heated and detected by the second thermal sensor 59 inside the heating container 52 in real time to ensure the water temperature. Test tube 65 is placed in the second limiting circular plate 69, and the second limiting circular plate 69 is heated by hot water. After the experimental reaction is completed, test tube 65 is taken out and hot water is output through output pipe 592. The output water is injected back into the pretreatment chamber 41 through the water injection pipe via the external second circulation pump, thereby circulating the hot water, ensuring the uniformity of the water bath environment temperature, reducing experimental waiting time, and improving experimental efficiency.

[0046] When hot water enters the heating container 52, it is blocked by the baffle plate 53 to prevent the hot water from directly impacting the test tube 65. This makes the water flow around the test tube 65 relatively gentle, thus ensuring the stability of the sample in the test tube 65 and contributing to the accuracy of the experimental results.

[0047] By pulling the hand block 692, the first limiting circular plate 64, test tube 65, second limiting circular plate 69, and rotating circular plate 691 move upward through the fixed slide rod 66. Rotating the rotating circular plate 691 causes the support rod 67 to rotate, and the support rod 67 disengages from the third opening 63. The third opening 63 abuts against the connector 54 to prevent the test tube 65 from being scalded by hot water when manually removed. Furthermore, the test tube 65 is placed inside the second limiting circular plate 69 and the first limiting circular plate 64. The fixed slide rod 66 is set between the first limiting circular plate 64 and the second limiting circular plate 69, and the fixed slide rod 66 cooperates with the second connecting port 62 to prevent the test tube 65 from shaking due to water flow, thus affecting the experiment.

[0048] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] 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 laboratory water bath constant temperature device, comprising a frame (1), wherein a support (2) is provided at the bottom end of the frame (1), and a PLC controller (3) is provided at the front end of the frame (1), characterized in that, It also includes a preheating circulation mechanism, a heat preservation mechanism and a stabilizing and fixing mechanism. The preheating circulation mechanism is set on the frame (1), the heat preservation mechanism is set on the side of the preheating circulation mechanism, and the stabilizing and fixing mechanism is set in the middle of the heat preservation mechanism. The preheating circulation mechanism includes a first electric heating wire (43) and a first circulation pump (44). A pretreatment chamber (41) is provided in the frame (1). The first circulation pump (44) is installed in the pretreatment chamber (41). A first thermal sensor (45) is fixedly connected to the side wall of the pretreatment chamber (41). The heat preservation mechanism includes a second heating wire (51), which is mounted on a frame (1). A heating container (52) is fixedly connected to the frame (1). The bottom end of the heating container (52) is in contact with the second heating wire (51). A baffle plate (53) is fixedly connected to the inner side of the heating container (52). A water inlet (591) is provided on the heating container (52). The stabilizing and fixing mechanism includes a first limiting circular plate (64) and a test tube (65). A plurality of fixed sliding rods (66) are fixedly connected to the first limiting circular plate (64). A second limiting circular plate (69) is fixedly connected to one end of the fixed sliding rod (66) away from the first limiting circular plate (64). A rubber pad (68) is fixedly connected to the middle of the second limiting circular plate (69). A rotating circular plate (691) is rotatably connected to the second limiting circular plate (69).

2. The laboratory water bath constant temperature device according to claim 1, characterized in that: The preheating circulation mechanism also includes a connecting block (46), which is fixedly connected to the frame (1), and a first heat-conducting plate (42) is provided in the pretreatment cavity (41).

3. The laboratory water bath constant temperature device according to claim 2, characterized in that: The first electric heating wire (43) is located at the bottom of the first heat-conducting plate (42), and a water injection pipe is provided on the side of the frame (1). The first circulating pump (44) is connected to the hole of the connecting block (46) through the pipe.

4. The laboratory water bath constant temperature device according to claim 1, characterized in that: The heat preservation mechanism also includes a connecting cover (56), the heating container (52) is fitted with a connector (54), the connector (54) has handle openings (55) at both ends, and the connecting cover (56) is fitted with the connector (54).

5. A laboratory water bath constant temperature device according to claim 4, characterized in that: The first connecting buckle assembly (57) is fixedly connected to the side end of the connecting cover (56), the second connecting buckle assembly (58) is fixedly connected to the side end of the heating container (52), the output pipe (592) is connected to the side end of the frame (1), the first connecting buckle assembly (57) can be connected to the second connecting buckle assembly (58), and the second thermal sensor (59) is fixedly connected to the side end of the heating container (52).

6. A laboratory water bath constant temperature device according to claim 4, characterized in that: The connector (54) has a first connection port (61), a third opening (63), and a second connection port (62).

7. A laboratory water bath constant temperature device according to claim 6, characterized in that: A hand-held block (692) is fixedly connected to the rotating circular plate (691), a support rod (67) is fixedly connected to the lower side of the rotating circular plate (691), the fixed sliding rod (66) is slidably connected in the second connection port (62), the test tube (65) is set on the first limiting circular plate (64), and the test tube (65) is set in the first connection port (61).

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