Stirring device for bacterial liquid culture

Abstract

The utility model provides a stirring device for bacterial liquid culture, and belongs to the technical field of stirring equipment.The device comprises a mounting vertical plate, a lifting table is arranged on one side of the mounting vertical plate, a containing cavity is formed in the lifting table and used for containing a material barrel, a cantilever is arranged above the lifting table, one end of the cantilever is connected with the mounting vertical plate, and stepped holes are formed in the other end of the cantilever in an array mode; the stirring assembly corresponds to the stepped hole and comprises a T-shaped sleeve, a spiral groove is formed in the T-shaped sleeve, a first spring is vertically arranged in the T-shaped sleeve, a rotating rod is arranged at the lower end of the first spring, a protruding rod is arranged on one side of the upper end of the rotating rod, one end of the protruding rod is in rolling fit with the spiral groove, the lower end of the rotating rod penetrates through the T-shaped sleeve and is provided with a stirring piece, and a second spring is arranged outside the T-shaped sleeve. The lower end of the second spring abuts against the joint of the large end and the small end of the stepped hole, and a pressing plate is arranged at the upper end of the T-shaped sleeve and is vertically and movably connected with the mounting vertical plate. According to the scheme provided by the invention, manual operation can be replaced, the mixing uniformity of the bacterial liquid is improved, and the device is convenient to disassemble and easy to clean.

Description

Technical Field

[0001] This utility model belongs to the technical field of stirring equipment, and in particular relates to a stirring device for bacterial culture. Background Technology

[0002] Bacterial suspension is a suspension formed by mixing microorganisms with a liquid medium. It is mainly used in scientific research, industry, agriculture and medicine. In the preparation of bacterial suspension, stirring is a key operation to promote the uniformity of mixing microorganisms with liquid medium, improve oxygen transfer efficiency, prevent precipitation and clumping, and optimize temperature and metabolic environment.

[0003] In existing laboratory settings, manual mixing is often used, which is time-consuming, labor-intensive, and cumbersome. Automated mixing devices are also used, such as the Chinese utility model patent CN209010510U, which discloses a mixing medium for bacterial culture. This medium includes a culture medium, a stirring rod within the medium, and a motor positioned below the medium. The motor's output is connected to the center of the stirring rod through the medium, driving the stirring rod to rotate and thus achieving mixing, replacing manual mixing and improving efficiency. The height of the stirring rod within the medium also improves the uniformity of mixing. However, the vertical dimension of the stirring rod is not adjustable. If there is a large amount of bacterial culture in the medium, stirring can only occur in the middle of the medium, limiting the stirring at the bottom and top. Furthermore, disassembly is inconvenient and cleaning is difficult. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a stirring device for bacterial culture, which can not only replace manual operation, but also improve the uniformity of bacterial mixture mixing, and is easy to disassemble and clean.

[0005] In order to achieve the purpose of this utility model, the following solution is proposed:

[0006] A stirring device for bacterial culture, comprising:

[0007] The mounting plate has a lifting platform on one side, and an array of receiving cavities on the lifting platform for placing material buckets. Above the lifting platform is a cantilever, one end of which is connected to the mounting plate, and the other end has an array of stepped holes.

[0008] The stirring assembly is vertically arranged in corresponding stepped holes, including a T-shaped sleeve in the stepped hole with a spiral groove inside. A first spring is vertically arranged inside the T-shaped sleeve, and a rotating rod is provided at the lower end of the first spring. A protruding rod is provided on one side of the upper end of the rotating rod. One end of the protruding rod is in rolling engagement with the spiral groove. The lower end of the rotating rod passes through the T-shaped sleeve and is equipped with a stirring element. A second spring is provided outside the T-shaped sleeve. The lower end of the second spring abuts against the connection between the large end and the small end of the stepped hole. A pressure plate is provided at the upper end of the T-shaped sleeve. The pressure plate is vertically movable and connected to the mounting plate.

[0009] Furthermore, the outer diameter of the vertical part of the T-sleeve is smaller than the inner diameter of the small end of the stepped hole, and the outer diameter of the horizontal part of the T-sleeve is larger than the inner diameter of the small end of the stepped hole, but smaller than the inner diameter of the large end of the stepped hole.

[0010] Furthermore, the T-shaped sleeve has L-shaped rods on both sides, and the lower end of the L-shaped rods extends a certain length below the T-shaped sleeve. The small end of the stepped hole has symmetrical grooves on both sides. The vertical part of the L-shaped rod is slidably connected to the grooves, and the horizontal part of the L-shaped rod abuts against the lower outer wall of the stepped hole.

[0011] Furthermore, one end of the protruding rod is provided with rolling balls, which roll in cooperation with the spiral groove.

[0012] Furthermore, the stirring component includes a disc, and flexible stirring rods are arranged in a circumferential array on the outer periphery of the disc. The other end of the flexible stirring rods is connected to the same cylinder, and the cylinder is rotatably sleeved with the rotating rod.

[0013] Furthermore, the lower end of the rotating rod is provided with a screw hole, and one side of the disc is provided with a through hole. A locking screw is inserted into the through hole and is threadedly connected to the screw hole.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The pressure plate pushes the T-shaped sleeve downward, causing the ball bearings to move along the rotation direction of the spiral groove, which in turn causes the rotating rod to rotate, thereby driving the stirring component to rotate. This allows the stirring rod to stir the material in the material tank. Under the action of centrifugal force, the cylinder moves downward along the rotating rod, allowing the flexible stirring rod to come close to the bottom and inner wall of the material tank for stirring, thereby improving the uniformity of stirring.

[0016] 2. The disc and the rotating rod are connected in a detachable manner, which makes it easy to disassemble the entire mixing assembly after mixing and to clean it. Attached Figure Description

[0017] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0018] Figure 1 A schematic diagram illustrating the application scenario of this application is shown.

[0019] Figure 2A cross-sectional view along the long axis of the lifting platform is shown in this application.

[0020] Figure 3 This application shows Figure 2 A magnified view of part A.

[0021] Figure 4 An explosion diagram of the stirring assembly of this application is shown.

[0022] The markings in the diagram are: Material bucket-1, Mounting vertical plate-10, Lifting platform-11, Receiving cavity-12, Cantilever-13, Stepped hole-14, Mixing assembly-20, T-shaped sleeve-21, Spiral groove-211, L-shaped rod-212, First spring-22, Rotating rod-23, Screw hole-231, Protruding rod-24, Ball bearing-241, Mixing component-25, Disc-251, Flexible mixing rod-252, Cylinder-253, Through hole-254, Second spring-26, Pressure plate-27. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0024] like Figures 1-4 As shown, this embodiment provides a stirring device for bacterial culture, including a mounting plate 10 and a plurality of stirring components 20 disposed on one side of the mounting plate 10.

[0025] Specifically, such as Figures 1-2 As shown, a vertically oriented strip groove runs through the mounting plate 10. A lifting platform 11 is provided on one side of the mounting plate 10. T-shaped sliders corresponding to the strip groove are arranged on the side of the lifting platform 11 facing the mounting plate 10, and the T-shaped sliders are slidably connected to the strip groove. A vertically arranged lifting cylinder is provided at the lower end of the lifting platform 11 to control the height position of the lifting platform 11 in the vertical direction of the mounting plate 10. The top surface of the lifting platform 11 has accommodating cavities 12 arranged along its length to hold the material bucket 1 and limit the material bucket 1 to prevent radial movement of the material bucket 1 during stirring. A cantilever 13 spans above the lifting platform 11. The cantilever 13 includes a set of spaced support rods parallel to the width direction of the lifting platform 10. One end of the set of support rods is connected to the side of the mounting vertical plate 10, and the other end is connected to the same horizontal bar. The long axis of the horizontal bar corresponds to the center line of the distribution of the receiving cavities 12. Stepped holes 14 are arranged in an array along the length direction of the horizontal bar. The center of each stepped hole 14 corresponds to the center of the receiving cavity 12.

[0026] like Figures 2-3As shown, the number of stirring components 20 is the same as the number of stepped holes 14, and they are vertically arranged in sequence in the corresponding stepped holes 14. Each stirring component 20 includes a T-shaped sleeve 21, a first spring 22, a rotating rod 23, a protruding rod 24, a stirring element 25, a second spring 26, and a pressure plate 27. The pressure plate 27 is vertically moved and positioned directly above the horizontal bar. The T-shaped sleeve 21 is vertically arranged in the corresponding stepped hole 14, and the diameter of the vertical part of the T-shaped sleeve 21 is smaller than the diameter of the small end of the stepped hole 14. The outer diameter of the horizontal part is larger than the inner diameter of the small end of the stepped hole 14 and smaller than the inner diameter of the large end of the stepped hole 14. The outer walls of the vertical part of the T-shaped sleeve 21 are respectively provided with L-shaped rods 212. The vertical part of the L-shaped rod 212 is connected to the vertical part of the T-shaped sleeve 21, and the horizontal part extends outward. The small end of the stepped hole 14 is provided with grooves on both sides, and the vertical part of the L-shaped rod 212 is slidably connected to the grooves. The L-shaped rod 212 is located below the small end of the stepped hole 14 to prevent the T-shaped sleeve 21 from rotating when it moves up and down.

[0027] The second spring 26 is sleeved on the vertical part of the T-shaped rod 21. The lower end of the second spring 26 abuts against the joint between the large and small ends of the stepped hole 14, so that the upper horizontal part of the T-shaped sleeve 21 keeps in contact with the bottom surface of the pressure plate 27. The inner wall of the vertical part of the T-shaped sleeve 21 is provided with a spiral groove 211. The lower end of the vertical part of the T-shaped sleeve 21 is provided with a sealing plate, and the sealing plate has a through hole in the middle. The upper end of the rotating rod 23 is located inside the vertical part of the T-shaped sleeve 21, and the upper end of the rotating rod 23 is provided with a limiting plate. The first spring 22 is also located inside the vertical part of the T-shaped sleeve 21, and the upper end of the first spring 22 is connected to the inner wall of the vertical part of the T-shaped sleeve 21. The upper end of the rod 23 is connected to the limiting plate at the upper end of the rotating rod 22. The protruding rod 24 is located on one side of the upper end of the rotating rod 23 and corresponds to the lower part of the limiting plate. The outer end of the protruding rod 24 is provided with a ball bearing 241. The ball bearing 241 rolls with the spiral groove 211. When the pressure rod 27 moves vertically downward, the pressure rod 24 pushes the T-shaped sleeve 21 through the lower end of the stepped hole and moves vertically downward, thereby compressing the first spring 22 and the second spring 26. During this process, the ball bearing 241 rolls along the spiral groove 211, thereby causing the ball bearing 24 to rotate, so that the rotating rod 23 rotates.

[0028] The stirring element 25 is located at the lower end of the rotating rod 23 so that the rotation of the rotating rod 23 drives the stirring element 25 to rotate, thereby realizing the stirring of the bacterial liquid.

[0029] Specifically, such as Figure 4As shown, the stirring component 25 includes a disc 251, a flexible stirring rod 252, and a cylinder 253. The flexible stirring rod 252 can be made of a steel rope with elastic deformation or a thin rubber rod. A screw hole 231 is provided on one side of the lower end of the rotating rod 23. The cylinder 253 is rotatably sleeved on the outer circumference of the rotating rod 23. A through hole 254 is provided on one side of the disc 251. A locking screw is provided in the through hole 254. One end of the locking screw passes through the through hole 254 and is threadedly connected to the screw 231. The flexible stirring rods 252 are arranged in a circumferential array on the outer circumference of the disc 251, and the other end of each flexible stirring rod 252 on the outer circumference of the disc 251 is connected to the outer circumference of the cylinder 253.

[0030] When cleaning is required, the disc 251 can be detached from the rotating rod 23 by removing the locking screws, and the cylinder 253 can be removed along the lower end of the axis of the rotating rod 23 for easy disassembly and cleaning.

[0031] Specific usage process:

[0032] Place the material bucket 1 into the corresponding receiving cavity 12, and add the liquid to be stirred into the corresponding material bucket 1 in proportion. Move the lifting platform 11 vertically upward. When the bottom surface of the disc 253 is close to the bottom surface of the material bucket 1, move the pressure plate 27 vertically downward. The vertical downward movement of the pressure plate 27 can be achieved by setting a vertical cylinder or by controlling an electric telescopic rod. The pressure plate 27 pushes the T-shaped sleeve 21 vertically downward, thereby causing the ball bearing 241 to rotate along the spiral groove 211, which in turn causes the rotating rod 23 to rotate and move upward relative to the T-shaped sleeve 21, so that the rotating rod 23 drives the disc 251 to rotate, thereby causing the disc 251 to drive each flexible stirring rod 252 to rotate synchronously, thus achieving the stirring of the liquid.

[0033] During the stirring process, the centrifugal force causes the middle part of the flexible stirring rod 252 to adhere tightly to the inner wall of the material tank 1, and the section below the middle part of the flexible stirring rod 252 to adhere to the bottom of the material tank 1, thereby causing the cylinder 253 to move vertically downward along the rotating rod 23, so that the liquid in the material tank 1 is stirred evenly and the uniformity of stirring is improved.

[0034] When the pressure plate 27 moves vertically upward, under the restoring force of the first spring 22 and the second spring 26, the T-shaped sleeve 21 moves vertically upward, and the rotating rod 23 rotates in the opposite direction and moves downward relative to the T-shaped sleeve 21. At this time, under the resistance of the liquid in the material tank 1, the cylinder 253 moves upward along the rotating rod 23, thereby stirring the liquid in the upper layer of the material tank 1 and further improving the uniformity of stirring.

[0035] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A stirring device for bacterial culture, characterized in that, include: The mounting plate (10) has a lifting platform (11) on one side. The lifting platform (11) has an array of receiving cavities (12) for placing material buckets (1). A cantilever (13) is provided above the lifting platform (11). One end of the cantilever (13) is connected to the mounting plate (10), and the other end has an array of stepped holes (14). The stirring assembly (20) is vertically arranged in the corresponding stepped holes (14), including a T-shaped sleeve (21) in the stepped hole (14) with a spiral groove (211) inside. A first spring (22) is vertically arranged inside the T-shaped sleeve (21). A rotating rod (23) is provided at the lower end of the first spring (22). A protruding rod (24) is provided on one side of the upper end of the rotating rod (23). One end of the protruding rod (24) is in rolling cooperation with the spiral groove (211). A stirring element (25) is provided through the T-shaped sleeve (21) at the lower end of the rotating rod (23). A second spring (26) is provided outside the T-shaped sleeve (21). The lower end of the second spring (26) abuts against the connection between the large end and the small end of the stepped hole (14). A pressure plate (27) is provided at the upper end of the T-shaped sleeve (21). The pressure plate (27) is vertically movable and connected to the vertical plate (10). One end of the protruding rod (24) is provided with a rolling ball (241), which rolls in conjunction with the spiral groove (211); The stirring component (25) includes a disc (251), and flexible stirring rods (252) are arranged in a circular array on the outer periphery of the disc (251). The other end of the flexible stirring rods (252) is connected to the same cylinder (253), and the cylinder (253) is rotatably sleeved with the rotating rod (23). The lower end of the rotating rod (23) is provided with a screw hole (231), and a through hole (254) is provided on one side of the disc (251). A locking screw is inserted in the through hole (254), and the locking screw is threadedly connected to the screw hole (231).

2. The stirring device for bacterial culture according to claim 1, characterized in that, The outer diameter of the vertical part of the T-shaped sleeve (21) is smaller than the inner diameter of the small end of the stepped hole (14). The outer diameter of the horizontal part of the T-shaped sleeve (21) is larger than the inner diameter of the small end of the stepped hole (14) and smaller than the inner diameter of the large end of the stepped hole (14).

3. The stirring device for bacterial culture according to claim 1, characterized in that, The T-shaped sleeve (21) has L-shaped rods (212) on both sides, and the lower end of the L-shaped rods (212) extends a certain length below the T-shaped sleeve (21). The small end of the stepped hole (14) has symmetrical grooves on both sides. The vertical part of the L-shaped rod (212) is slidably connected to the groove, and the horizontal part of the L-shaped rod (212) abuts against the lower outer wall of the stepped hole (14).

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