Thermostatic bath

Abstract

The utility model relates to the field of experimental equipment, in particular to a thermostatic bath. The thermostatic bath comprises a thermostatic bath body, and a rotary placement frame is mounted in the thermostatic bath body; a driving mechanism is mounted on the rotary placement frame; a telescopic mechanism is mounted on the rotary placement frame; and a reset mechanism is mounted on the rotary placement frame. The driving mechanism drives the star-shaped frame to slowly rotate in the thermostatic bath body, so that liquid media in the thermostatic bath body are stirred, the liquid media in the thermostatic bath body are kept in a flowing state, and the temperature difference of the liquid media at different depths is reduced, so that the temperature difference of each part of a sample contained in the container is consistent, and the sample containing efficiency is improved. The accuracy of experimental data is guaranteed, resetting of a limiting plate is controlled through a resetting mechanism, a limiting opening and a through opening are staggered to clamp and limit the upper end of a containing container, a telescopic mechanism is used for ascending and descending of a mounting plate, and the mounting plate can ascend and descend conveniently to place and take the containing container.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature baths, and more particularly to a constant temperature bath. Background Technology

[0002] Thermostatic baths are particularly suitable for chemical, biological, and physical laboratories that require maintaining low or normal temperature conditions. They are essential equipment for laboratories in medicine and health, chemical industry, food industry, metallurgical industry, universities, scientific research, genetic engineering, and polymer engineering. Publication number CN218742080U describes a thermostatic bath with a water bath heating rack. However, manually placing and removing the heating rack to store and retrieve sample containers is cumbersome. Furthermore, when one or more sets of samples need to be retrieved, all samples must be removed, causing unused samples to exchange heat with the outside air. Over time, this can affect the stored samples and lead to errors in experimental data.

[0003] Therefore, it is necessary to provide a new thermostatic bath to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a constant temperature bath that is convenient for sample storage and retrieval, has a good sample temperature control effect, and ensures the accuracy of experimental data of the sample.

[0005] The constant temperature bath provided by this utility model includes: a constant temperature bath body, and a rotating placement rack is installed inside the constant temperature bath body;

[0006] The rotating placement rack includes two star-shaped frames, which are symmetrically installed inside the constant temperature bath body. An installation plate is installed between the corresponding ends of the two star-shaped frames. Multiple brackets are fixedly installed at the bottom of the installation plate, and the installation plate has a through-hole that cooperates with the brackets. A limit plate is installed on the installation plate, and the limit plate has a limit opening that communicates with the through-hole and is staggered. A pull rod is fixedly installed on the limit plate.

[0007] The rotating placement rack is equipped with a drive mechanism, and the two star-shaped racks are driven to rotate coaxially by the drive mechanism.

[0008] The rotating placement rack is equipped with a telescopic mechanism, and the mounting plate is slidably connected to the star-shaped frame through the telescopic mechanism;

[0009] The rotating placement frame is equipped with a reset mechanism, and the limiting plate is slidably connected to the mounting plate through the reset mechanism.

[0010] Preferably, the bracket includes a concave support plate and a plurality of vertical rods, the plurality of vertical rods being arranged in a circular pattern and fixed to the opening on the lower side wall of the mounting plate, and the concave support plate being fixedly installed at the bottom of the plurality of vertical rods.

[0011] Preferably, sponge pads are fixedly installed on the inner wall of the concave support plate and on the opposite side walls of the multiple vertical rods.

[0012] Preferably, the driving mechanism includes a driving shaft, which is laterally rotatably connected to the inside of the constant temperature bath body, and the two star-shaped brackets are coaxially fixedly sleeved on the driving shaft. A driving motor is also fixedly installed inside the constant temperature bath body, and one end of the driving shaft is fixedly connected to the output end of the driving motor.

[0013] Preferably, the telescopic mechanism includes cylinders, and cylinders are fixedly installed on the opposite side walls of the two star-shaped frames. A piston rod is fixedly connected to the output end of the cylinder. The upper end of the piston rod is fixedly connected to the mounting plate. Slide grooves are provided on the two star-shaped frames, and slide rods are slidably connected in the slide grooves. The upper end of the slide rods is fixedly connected to the end of the mounting plate.

[0014] Preferably, the reset mechanism includes a reset spring, the mounting plate has a transverse sliding cavity, and a slider is slidably connected inside the sliding cavity. The slider is connected to the inner end wall of the sliding cavity through the reset spring, and the slider is fixedly connected to the limiting plate through a connecting block.

[0015] Preferably, each of the limiting plates has two pull rods fixedly installed, and the two pull rods on the limiting plate are respectively close to the two ends of the limiting plate. The number of reset mechanisms on the mounting plate is two sets, and the two sets of reset mechanisms are symmetrical and respectively located at the two ends of the mounting plate.

[0016] Preferably, rubber rings are fixedly installed on the inner walls of both the through-hole and the limiting opening.

[0017] Compared with related technologies, the constant temperature bath provided by this utility model has the following beneficial effects:

[0018] 1. This utility model uses a drive mechanism to drive a star-shaped frame to slowly rotate inside the thermostatic bath, thereby stirring the liquid medium inside the thermostatic bath and keeping the liquid medium in a flowing state. This reduces the temperature difference between different depths of the liquid medium, ensuring that the temperature difference of each part of the sample in the container is consistent, thus guaranteeing the accuracy of experimental data. The container is completely immersed in the liquid medium, ensuring uniform heating or cooling of the sample in the container. When it is necessary to take a group of samples on a mounting plate, it is rotated to the top and then raised by the telescopic mechanism for easy access. The remaining samples continue to be immersed in the liquid medium for heat exchange, avoiding the influence of external temperature on other samples when taking samples.

[0019] 2. This utility model controls the reset of the limiting plate through the reset mechanism, so as to achieve the interleaved clamping and limiting of the upper end of the container by the limiting opening and the through opening. The telescopic mechanism is used for the lifting and lowering of the mounting plate, which facilitates the placement and retrieval of the container by lifting and lowering the mounting plate. Attached Figure Description

[0020] Figure 1 A schematic diagram of a preferred embodiment of the constant temperature bath provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows the structure of the rotating placement rack.

[0022] Figure 3 for Figure 2 The diagram shows the structure of the drive mechanism.

[0023] Figure 4 for Figure 2 The diagram shows the structure of the mounting plate.

[0024] Figure 5 for Figure 2 The diagram shows the structure of the limiting plate.

[0025] Figure 6 for Figure 3 The diagram shows the structure at point A.

[0026] Figure 7 for Figure 4 The diagram shows the structure at point B.

[0027] The following are the labeling elements in the diagram: 1. Thermostatic bath body; 2. Rotating placement rack; 21. Star-shaped frame; 22. Mounting plate; 23. Bracket; 231. Vertical rod; 232. Concave support plate; 233. Sponge pad; 24. Through port; 25. Limiting plate; 26. Limiting opening; 27. Pull rod; 3. Drive mechanism; 31. Drive shaft; 32. Drive motor; 4. Telescopic mechanism; 41. Cylinder; 42. Piston rod; 43. Slide groove; 44. Slide rod; 5. Reset mechanism; 51. Slide cavity; 52. Slider; 53. Connecting block; 54. Reset spring; 6. Rubber ring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1 to 7 This utility model provides a constant temperature bath, comprising: a constant temperature bath body 1, with a rotating placement rack 2 installed inside the constant temperature bath body 1; the rotating placement rack 2 includes two star-shaped racks 21, which are symmetrically installed inside the constant temperature bath body 1, and mounting plates 22 are installed between corresponding ends of the two star-shaped racks 21; multiple brackets 23 are fixedly installed at the bottom of the mounting plates 22, and the mounting plates 22 have openings 24 that cooperate with the brackets 23; and the mounting plates 22 are equipped with... A limiting plate 25 is provided, and a limiting opening 26 is provided on the limiting plate 25 to communicate with the through opening 24 and to be staggered. A pull rod 27 is fixedly installed on the limiting plate 25. A driving mechanism 3 is installed on the rotating placement frame 2, and two star-shaped frames 21 are driven to rotate coaxially through the driving mechanism 3. A telescopic mechanism 4 is installed on the rotating placement frame 2, and the mounting plate 22 is slidably connected to the star-shaped frame 21 through the telescopic mechanism 4. A reset mechanism 5 is installed on the rotating placement frame 2, and the limiting plate 25 is slidably connected to the mounting plate 22 through the reset mechanism 5.

[0031] It should be noted that: pulling the lever 27 drives the limiting plate 25 until the limiting opening 26 and the through opening 24 are directly connected, the container can be placed into the bracket 23 from the limiting opening 26. Releasing the lever 27, the limiting plate 25 is reset under the action of the reset mechanism 5. The limiting opening 26 and the through opening 24 alternately clamp and limit the upper end of the container. The telescopic mechanism 4 is used for the lifting and lowering of the mounting plate 22. Each mounting plate 22 is equipped with a set of telescopic mechanisms 4 to facilitate the lifting and lowering of the mounting plate 22 for the placement and retrieval of the container. The drive mechanism 3 drives the star frame 21 to rotate slowly inside the constant temperature bath body 1 to realize the stirring of the liquid medium inside the constant temperature bath body 1, so that the liquid medium inside the constant temperature bath body 1 is kept in a flowing state, reducing the temperature difference of the liquid medium at different depths, so that the temperature difference of each part of the sample in the container is consistent, ensuring the accuracy of the experimental data. The container is completely immersed in the liquid medium to ensure uniform heating or cooling of the sample in the container.

[0032] When a set of samples on a mounting plate 22 needs to be taken, it is rotated to the top and then raised by the telescopic mechanism 4 to be taken. The remaining samples continue to be immersed in the liquid medium for heat exchange, so as to avoid the other samples being affected by the external temperature when taking samples.

[0033] Among them, the rotating placement rack 2 in this utility model is mainly for a series of containers with relatively standard specifications or shapes, such as test tubes and cups. The size and length of the inner cavity of the bracket 23, the size of the opening of the through 24 and the limiting opening 26 are determined according to the actual specifications of the container. At the same time, it is necessary to ensure the sealing of the bottle mouth of the container to prevent the liquid medium from entering.

[0034] The constant temperature bath is equipped with a cover plate that is rotatably connected to it to seal and insulate the constant temperature bath. This is a common technical means in this field, and it is not shown in the attached drawings and will not be described in detail.

[0035] In the embodiments of this utility model, please refer to Figure 4 The bracket 23 includes a concave support plate 232 and multiple vertical rods 231. The multiple vertical rods 231 are arranged around and fixed at the opening 24 on the lower side wall of the mounting plate 22, and the concave support plate 232 is fixedly installed at the bottom of the multiple vertical rods 231.

[0036] It should be noted that the concave tray 232 is used to facilitate the placement of containers with round bottoms, and the concave tray 232 does not affect the placement of containers with flat bottoms. The multiple vertical rods 231 provide sufficient gaps in the bracket 23 to ensure that the containers can have a large area of ​​contact with the liquid medium for heat exchange.

[0037] In the embodiments of this utility model, please refer to Figure 4 Sponge pads 233 are fixedly installed on the inner wall of the concave support plate 232 and the opposite side walls of the multiple vertical rods 231.

[0038] It should be noted that the container is protected by the sponge pad 233 to prevent the container from being damaged by hard contact with the bracket 23.

[0039] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The drive mechanism 3 includes a drive shaft 31, which is laterally rotatably connected to the inside of the constant temperature bath body 1. Two star-shaped frames 21 are coaxially fixedly sleeved on the drive shaft 31. A drive motor 32 is also fixedly installed inside the constant temperature bath body 1, and one end of the drive shaft 31 is fixedly connected to the output end of the drive motor 32.

[0040] It should be noted that the drive motor 32 is located inside the constant temperature bath body 1 and does not come into contact with the liquid medium. The drive motor 32 drives the drive shaft 31 to rotate, which drives the two star-shaped frames 21 to rotate synchronously, thereby realizing the stirring operation of the liquid medium inside the constant temperature bath body 1. It works in conjunction with the telescopic mechanism 4 to facilitate the storage and retrieval of samples.

[0041] In the embodiments of this utility model, please refer to Figure 2 , Figure 3 and Figure 6 The telescopic mechanism 4 includes a cylinder 41. Cylinders 41 are fixedly installed on the opposite side walls of the two star-shaped frames 21. A piston rod 42 is fixedly connected to the output end of the cylinder 41. The upper end of the piston rod 42 is fixedly connected to the mounting plate 22. Slide grooves 43 are provided on the two star-shaped frames 21. A slide rod 44 is slidably connected in the slide grooves 43. The upper end of the slide rod 44 is fixedly connected to the end of the mounting plate 22.

[0042] It should be noted that: the cylinder 41 controls the extension and retraction of the piston rod 42, thereby realizing the synchronous lifting and lowering of the mounting plate 22 and the corresponding limit plate 25. During the lifting and lowering of the mounting plate 22, the slide rod 44 slides in the slide groove 43, which improves the stability of the mounting plate 22.

[0043] In the embodiments of this utility model, please refer to Figure 4 , Figure 5 and Figure 7 The reset mechanism 5 includes a reset spring 54, a transverse sliding cavity 51 is provided on the mounting plate 22, and a slider 52 is slidably connected inside the sliding cavity 51. The slider 52 is connected to the inner end wall of the sliding cavity 51 through the reset spring 54, and the slider 52 is fixedly connected to the limiting plate 25 through the connecting block 53.

[0044] It should be noted that: when the pull rod 27 is pulled to one side, the slider 52, which is fixedly connected to the limiting plate 25 via the connecting block 53, slides inside the sliding cavity 51, compressing or stretching the return spring 54. When the limiting opening 26 and the through opening 24 are aligned and connected, the container is placed in. When the pull rod 27 is released, under the elastic force of the return spring 54, the slider 52 drives the limiting plate 25 to return to its original position, so that the limiting opening 26 and the through opening 24 alternately clamp and limit the container. The operation is simple and quick, and it is convenient for the storage and retrieval of samples.

[0045] In the embodiments of this utility model, please refer to Figure 5 Two pull rods 27 are fixedly installed on each limiting plate 25, and the two pull rods 27 on the limiting plate 25 are respectively close to the two ends of the limiting plate 25. There are two sets of reset mechanisms 5 on the mounting plate 22, and the two sets of reset mechanisms 5 are symmetrical and respectively located at the two ends of the mounting plate 22.

[0046] It should be noted that the two pull rods 27 on the limiting plate 25 facilitate the storage and retrieval of containers by left-handed or right-handed staff. At the same time, during use, when the reset spring 54 in one set of reset mechanisms is stretched, the reset spring 54 in the other set of reset mechanisms is compressed, ensuring the limiting effect of the limiting plate 25.

[0047] The limiting plate 25 should not be moved in the same direction for a long time to avoid the return spring 54 being stretched or compressed in one direction for a long time, which would reduce its elasticity.

[0048] In the embodiments of this utility model, please refer to Figure 7 Rubber rings 6 are fixedly installed on the inner walls of both the through-hole 24 and the limiting opening 26;

[0049] It should be noted that by setting rubber rings 6 at both the opening 24 and the limiting opening 26, when the opening 24 and the limiting opening 26 are used to clamp the container, the inner wall of the rubber rings 6 are prevented from directly contacting the outer wall of the container and causing damage to the container.

[0050] The working principle of the constant temperature bath provided by this utility model is as follows:

[0051] When maintaining a constant temperature on the container holding the sample, the cover plate on the body 1 of the constant temperature bath is opened. The drive motor 32 drives the two star-shaped frames 21 to rotate synchronously through the drive shaft 31, so that the empty mounting plate 22 rotates to the face-up position. The cylinder 41 controls the piston rod 42 to extend, thereby raising the mounting plate 22 and pulling the pull rod 27 to one side. The slider 52, which is fixedly connected to the limiting plate 25 through the connecting block 53, slides inside the sliding cavity 51, compressing or stretching the return spring 54. When the limiting opening 26 and the through opening 24 are directly connected, the container is placed in. The bottom of the container falls to the bottom of the bracket 23, and the upper part remains above the limiting plate 25. The pull rod 27 is released. Under the elastic force of the return spring 54, the slider 52 moves the limiting plate 25. The position plate 25 is reset, so that the limiting opening 26 and the through opening 24 are staggered to clamp and limit the upper end of the container. The cylinder 41 then controls the piston rod 42 to retract, so that the mounting plate 22 is lowered and reset, and the container is completely immersed in the liquid medium. During the constant temperature storage of the sample in the container, the drive motor 32 drives the star frame 21 to rotate slowly inside the constant temperature bath body 1, so as to stir the liquid medium inside the constant temperature bath body 1, keep the liquid medium inside the constant temperature bath body 1 in a flowing state, reduce the temperature difference of the liquid medium at different depths, so that the temperature difference of the sample in the container is consistent, ensuring the accuracy of the experimental data. The container is completely immersed in the liquid medium to ensure uniform heating or cooling of the sample in the container.

[0052] When it is necessary to retrieve the sample stored on the corresponding mounting plate 22, the drive mechanism 3 drives the two star-shaped frames 21 to rotate synchronously, so that the corresponding mounting plate 22 rotates to the face-up position. The telescopic mechanism 4 then controls the mounting plate 22 to rise and pulls the lever 27, so that the container holding the sample can be taken out from the bracket 23 on the mounting plate 22. Then the telescopic mechanism 4 controls the mounting plate 22 to reset.

[0053] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A thermostat tank characterized by, Include: Constant-temperature tank body (1), the rotating rack (2) is installed inside the constant-temperature tank body (1); The rotating rack (2) includes two star-shaped racks (21), two star-shaped racks (21) are symmetrically installed inside the constant-temperature tank body (1), and mounting plates (22) are installed between the corresponding ends of the two star-shaped racks (21), the bottom of the mounting plate (22) is fixedly installed with a plurality of brackets (23), and the mounting plate (22) is provided with a through hole (24) matched with the bracket (23), the mounting plate (22) is installed with a limiting plate (25), and the limiting plate (25) is provided with a limiting opening (26) communicated with the through hole (24) and staggered, and the limiting plate (25) is fixedly installed with a pull rod (27); The rotating rack (2) is installed with a driving mechanism (3), and the two star-shaped racks (21) are coaxially driven to rotate by the driving mechanism (3); The rotating rack (2) is installed with a telescopic mechanism (4), and the mounting plate (22) is slidably connected with the star-shaped rack (21) through the telescopic mechanism (4); The rotating rack (2) is installed with a reset mechanism (5), and the limiting plate (25) is slidably connected with the mounting plate (22) through the reset mechanism (5).

2. The thermostat tank according to claim 1, wherein The bracket (23) includes a concave supporting plate (232) and a plurality of vertical rods (231), a plurality of vertical rods (231) are fixedly arranged around the through hole (24) of the lower side wall of the mounting plate (22), and the concave supporting plate (232) is fixedly installed at the bottom of the plurality of vertical rods (231).

3. The constant temperature bath of claim 2, wherein, The inner wall of the concave supporting plate (232) and the opposite side wall of the plurality of vertical rods (231) are fixedly installed with sponge pads (233).

4. The constant temperature bath of claim 1, wherein, The driving mechanism (3) includes a driving shaft (31), the driving shaft (31) is transversely rotatably connected inside the constant-temperature tank body (1), and the two star-shaped racks (21) are coaxially fixedly arranged on the driving shaft (31), the constant-temperature tank body (1) is further fixedly installed with a driving motor (32), and one end of the driving shaft (31) is fixedly connected with the output end of the driving motor (32).

5. The constant temperature bath of claim 1, wherein, The telescopic mechanism (4) includes a gas cylinder (41), the opposite side walls of the two star-shaped racks (21) are fixedly installed with a gas cylinder (41), and the output end of the gas cylinder (41) is fixedly connected with a piston rod (42), the upper end of the piston rod (42) is fixedly connected with the mounting plate (22), the two star-shaped racks (21) are provided with a sliding groove (43), and the sliding groove (43) is slidably connected with a sliding rod (44), and the upper end of the sliding rod (44) is fixedly connected with the end of the mounting plate (22).

6. The constant temperature bath of claim 1, wherein, The reset mechanism (5) includes a reset spring (54), the mounting plate (22) is provided with a transverse sliding cavity (51), and the sliding cavity (51) is slidably connected with a sliding block (52), the sliding block (52) is connected with the inner end wall of the sliding cavity (51) through the reset spring (54), and the sliding block (52) is fixedly connected with the limiting plate (25) through a connecting block (53).

7. The constant temperature bath of claim 6, wherein, The number of the pull rods (27) fixedly installed on each of the limiting plates (25) is two, and the two pull rods (27) on the limiting plate (25) are respectively close to the two ends of the limiting plate (25), the number of the reset mechanisms (5) on the mounting plate (22) is two groups, and the two groups of reset mechanisms (5) are symmetrical and respectively located at the two ends of the mounting plate (22).

8. The constant temperature bath of claim 1, wherein, The inner wall of the through hole (24) and the limiting opening (26) is fixedly installed with a rubber ring (6).

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