Adjustable support for culture medium

Abstract

The invention discloses a culture medium adjustable support, and relates to the technical field of scientific research instruments, the culture medium adjustable support comprises a plurality of module mechanisms which are sequentially distributed from top to bottom, each module mechanism comprises a shell, a threaded rod, a threaded block and two test tube racks located on the two sides of the shell, the shell is detachably connected with the shell in the adjacent module mechanism, and the threaded rod is connected with the threaded block through a threaded rod; the threaded rod is detachably connected with the threaded rod in the adjacent module mechanism, the threaded block is in threaded connection with the threaded rod, and each test tube rack is connected with the shell through two first connecting rods and is connected with the threaded block through a second connecting rod; and the cover plate mechanism comprises a cover plate, a rotating rod, a disc, a rotating shaft and a transmission plug, and the rotating shaft, the disc, the transmission plug and the rotating rod are matched, so that the uppermost threaded rod can be driven to rotate by rotating the rotating rod. The inclination angles of a plurality of test tubes can be adjusted at the same time, so that the preparation efficiency of a slant culture medium is greatly improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of scientific research instruments, and in particular to an adjustable culture medium support. Background Art

[0002] In the process of biological experiments, the preparation of slant culture medium is an important step. Slant culture medium has a large surface area, which is conducive to the growth of microorganisms and the accumulation of metabolites. It is widely used in the isolation, cultivation, and preservation of bacterial strains. At present, the preparation of slant culture medium is usually completed in a test tube.

[0003] However, there are many problems with the existing slant culture medium preparation technology. First, it is extremely difficult to accurately control the inclination angle of the slant culture medium. The angle of the slope has a significant impact on the growth environment of microorganisms. For example, different inclination angles will change the thickness of the culture medium and the contact area with the air. A slight deviation may affect the growth state of the microorganisms, thereby affecting the accuracy and reliability of the experimental results. Secondly, when it is necessary to prepare slant culture media in batches in multiple test tubes, the existing technology cannot achieve batch operation of all test tubes. The staff can only process the test tubes one by one, which not only greatly increases the workload, but also makes the labor intensity of the staff remain high. This situation seriously restricts the efficiency and quality of biological experiments, and a technical solution that can solve the above problems is urgently needed. Summary of the invention

[0004] The object of the present invention is to provide an adjustable culture medium support to solve the problems existing in the above-mentioned prior art, to achieve simultaneous adjustment of the inclination angles of multiple test tubes, and to improve the preparation efficiency of the inclined culture medium.

[0005] To achieve the above object, the present invention provides the following solutions: The present invention provides a culture medium adjustable support, comprising: A plurality of module mechanisms distributed in sequence from top to bottom, each of the module mechanisms comprises a shell, a threaded rod, a threaded block and two test tube racks located on both sides of the shell, the shell is detachably connected to the shell in the adjacent module mechanism, two fixing plates are fixed in the shell, the threaded rod passes through the two fixing plates, each fixing plate is rotatably matched with the threaded rod and axially limitedly connected, the threaded rod is detachably connected to the threaded rod in the adjacent module mechanism, the threaded block is threadedly connected to the threaded rod, each of the test tube racks is connected to the shell through two first connecting rods, one end of the first connecting rod is hinged to the shell, and the other end is fixedly connected to the test tube rack, each of the test tube racks is connected to the threaded block through a second connecting rod, one end of the second connecting rod is fixedly connected to the threaded block, and the other end is hinged to the test tube rack; A cover plate mechanism, the cover plate mechanism includes a cover plate, a rotating rod, a disc, a rotating shaft and a transmission plug, the cover plate is detachably connected to the top end of the shell in the uppermost module mechanism, the top end of the rotating shaft is fixedly connected to the center of the disc, the rotating shaft passes through the cover plate and rotates with the cover plate, the transmission plug is fixedly connected to the bottom end of the rotating shaft, the transmission plug is used to be circumferentially limitedly connected to the top end of the threaded rod in the uppermost module mechanism, the bottom end of the rotating rod is fixedly connected to the disc, and the rotating rod is eccentric relative to the disc.

[0006] Preferably, a connecting buckle is provided on the threaded block corresponding to each of the second connecting rods, and the second connecting rod is fixedly connected to the corresponding connecting buckle.

[0007] Preferably, the second connecting rod is L-shaped.

[0008] Preferably, it also includes a bottom plate and a supporting mechanism arranged on the bottom plate, the supporting mechanism includes a base, a mounting seat fixed on the base and a supporting seat rotatably arranged on the base, the mounting seat is used to be detachably connected to the bottom end of the shell in the lowest module mechanism, and the supporting seat is used to be circumferentially limitedly connected to the bottom end of the threaded rod in the lowest module mechanism.

[0009] Preferably, two symmetrically distributed plug-in plates are fixed to the bottom end of each of the shells, and the plug-in plates are used to be inserted into the mounting seat or into the top end of another of the shells. A first bolt is provided at the top end of the shell, and the first bolt is used to be threadedly connected to a plug-in plate or the cover plate in another of the module mechanisms.

[0010] Preferably, two symmetrically distributed lifting rods are further provided on the base, the lifting rods are arranged obliquely, and the bottom ends of the lifting rods are fixedly connected to the base.

[0011] Preferably, a plurality of second bolts are provided on the mounting seat, and the second bolts are used for threaded connection with the plug-in board in the lowermost module mechanism.

[0012] Preferably, a connecting seat is fixedly provided at the top end of each threaded rod and a connecting head is fixedly provided at the bottom end; any one of the connecting seats can be circumferentially limitedly connected to the connecting head on another threaded rod, and any one of the connecting heads can be circumferentially limitedly connected to the support seat.

[0013] Preferably, two clamping plates spaced apart from each other are fixedly provided in the test tube rack, each of the clamping plates is fixedly provided with a plurality of placement through holes, and all the placement through holes on the two clamping plates correspond to each other one by one, and the two corresponding placement through holes are coaxial.

[0014] Preferably, the two test tube racks in the same module structure are symmetrically distributed.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: The adjustable culture medium support of the present invention is connected by threads between the threaded rod and the threaded block, and the second connecting rod is connected to the threaded block and the test tube rack. When the threaded rod is rotated, the threaded block moves on the threaded rod, driving the second connecting rod to move, thereby changing the relative angle between the test tube rack and the shell, and realizing precise adjustment of the inclination angle of the test tube placed in the test tube rack. This design solves the problem that the inclination angle of the inclined culture medium is difficult to accurately control, ensures the consistency of the microbial growth environment, and improves the accuracy and reliability of the experimental results.

[0016] Furthermore, the support is provided with a plurality of module mechanisms distributed sequentially from top to bottom, each module mechanism has two test tube racks, and the threaded rods in each module mechanism are detachably connected. By rotating a threaded rod, such as rotating the threaded rod of the uppermost module mechanism through the rotating rod in the cover mechanism, the threaded rods of all the module mechanisms below can be driven to rotate synchronously by utilizing the connection between the threaded rods, thereby realizing the simultaneous adjustment of the inclination angles of multiple test tubes. This changes the method in the prior art where the staff can only process the test tubes one by one, greatly improves the preparation efficiency of the slant culture medium, and reduces the labor intensity of the staff.

[0017] Furthermore, the housings between the module mechanisms are detachably connected through the plug plate and the first bolt, and the threaded rods are circumferentially limitedly connected through the connecting seat and the connecting head. This design makes the assembly and disassembly of the bracket very convenient. In actual use, the number of module mechanisms can be flexibly increased or decreased according to experimental requirements to meet the preparation requirements of slant culture media of different scales, thereby improving the versatility and applicability of the bracket.

[0018] Furthermore, a bottom plate and a support mechanism are provided, the mounting seat of the support mechanism is connected to the housing of the lowest module mechanism, and the support seat is connected to the circumferential limit of the bottom end of the threaded rod, providing stable support for the entire bracket. At the same time, the inclined lifting rod provided on the base facilitates the operator to carry the entire bracket, improving the convenience of operation.

[0019] Furthermore, two clamping plates are fixedly provided in the test tube rack, which are spaced apart from each other up and down, and the clamping plates are provided with one-to-one corresponding and coaxial placement through holes, which can firmly clamp the test tube to prevent the test tube from shaking or sliding during the adjustment of the tilt angle or transportation, thereby further ensuring the stability of the experimental process.

[0020] Furthermore, the cover of the cover mechanism is detachably connected to the top of the uppermost module mechanism housing, and the cooperation of the rotating shaft, the disc, the transmission plug and the rotating rod enables the uppermost threaded rod to rotate by rotating the rotating rod, and the power is transmitted through the connection between the threaded rods, thereby realizing the synchronous adjustment of the inclination angle of the test tubes in each module mechanism of the entire bracket, further improving the operational convenience and batch adjustment efficiency.

[0021] Furthermore, the lifting rods symmetrically distributed and tilted on the base facilitate operators to carry the bracket, improve the convenience of operation, and make the entire device more convenient to transfer in different experimental scenarios.

[0022] Furthermore, the connecting seat at the top of the threaded rod and the connecting head at the bottom end realize a circumferential limiting connection between the threaded rods and between the threaded rod and the support seat, ensuring that when the threaded rod is rotated to adjust the inclination angle of the test tube, the power transmission between the module mechanisms is stable and accurate, thereby improving the synchronization and reliability of the overall adjustment.

[0023] Furthermore, the two test tube racks in the same module mechanism are symmetrically distributed, which ensures the balance of the entire module mechanism after the test tubes are placed, helps maintain the overall stability of the rack, and further improves the reliability of experimental operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic structural diagram of a module mechanism in the culture medium adjustable support of the present invention; Figure 2 It is a schematic diagram of the structure of the culture medium adjustable support of the present invention; Figure 3 It is a partial structural schematic diagram of the module mechanism in the culture medium adjustable support of the present invention; Figure 4 It is a partial structural schematic diagram of the culture medium adjustable support of the present invention; Figure 5 It is a structural schematic diagram of the cover plate mechanism in the culture medium adjustable support of the present invention; In the figure: 1. support mechanism; 11. base; 12. lifting rod; 13. mounting seat; 14. second bolt; 15. support seat; 2. module mechanism; 21. plug-in board; 22. shell; 23. fixing plate; 24. first bolt; 25. threaded rod; 26. connecting seat; 27. connecting head; 28. test tube rack; 281. threaded block; 282. connecting buckle; 283. second connecting rod; 284. first connecting rod; 285. support plate; 286. clamping plate; 3. cover plate mechanism; 31. cover plate; 32. transmission plug; 33. disc; 34. rotating rod; 4. bottom plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The object of the present invention is to provide an adjustable culture medium support to solve the problems existing in the above-mentioned prior art, to achieve simultaneous adjustment of the inclination angles of multiple test tubes, and to improve the preparation efficiency of the inclined culture medium.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 5 As shown, this embodiment provides a culture medium adjustable support, comprising: A plurality of module mechanisms 2 are sequentially distributed from top to bottom, each module mechanism 2 comprises a shell 22, a threaded rod 25, a threaded block 281 and two test tube racks 28 located on both sides of the shell 22, the shell 22 is detachably connected to the shell 22 in the adjacent module mechanism 2, two fixing plates 23 are fixedly arranged in the shell 22, the threaded rod 25 passes through the two fixing plates 23, each fixing plate 23 is rotationally matched with the threaded rod 25 and axially limitedly connected, the threaded rod 25 is detachably connected to the threaded rod 25 in the adjacent module mechanism 2, the threaded block 281 is threadedly connected to the threaded rod 25, each test tube rack 28 is connected to the shell 22 through two first connecting rods 284, one end of the first connecting rod 284 is hinged to the shell 22, and the other end is fixedly connected to the test tube rack 28, each test tube rack 28 is connected to the threaded block 281 through a second connecting rod 283, one end of the second connecting rod 283 is fixedly connected to the threaded block 281, and the other end is hinged to the test tube rack 28; The cover mechanism 3 includes a cover plate 31, a rotating rod 34, a disc 33, a rotating shaft and a transmission plug 32. The cover plate 31 is detachably connected to the top of the shell 22 in the uppermost module mechanism 2. The top of the rotating shaft is fixedly connected to the center of the disc 33. The rotating shaft passes through the cover plate 31 and rotates with the cover plate 31. The transmission plug 32 is fixedly connected to the bottom end of the rotating shaft. The transmission plug 32 is used to be circumferentially limitedly connected to the top end of the threaded rod 25 in the uppermost module mechanism 2. The bottom end of the rotating rod 34 is fixedly connected to the disc 33, and the rotating rod 34 is eccentric relative to the disc 33.

[0030] In this embodiment, through the threaded connection between the threaded rod 25 and the threaded block 281, and the connection structure between the second connecting rod 283, the threaded block 281, and the test tube rack 28, when the operator rotates the rotating rod 34 to drive the threaded rod 25 to rotate, the threaded block 281 moves up and down on the threaded rod 25, driving the second connecting rod 283 to move, thereby changing the relative angle between the test tube rack 28 and the shell 22, and realizing the precise adjustment of the inclination angle of the test tube placed in the test tube rack 28. And because each test tube rack 28 can be placed on a plurality of test tubes, and this embodiment includes a plurality of test tube racks 28, this embodiment can realize the one-time batch adjustment of batch test tubes, and is easy to use, which changes the method in the prior art that the staff can only process the test tubes one by one, greatly improves the preparation efficiency of the slant culture medium, and reduces the labor intensity of the staff.

[0031] Specifically, a connecting buckle 282 is provided on the threaded block 281 corresponding to each second connecting rod 283, and the second connecting rod 283 is fixedly connected to the corresponding connecting buckle 282. The second connecting rod 283 and the threaded block 281 are fixedly connected by the connecting buckle 282, which can provide a more reliable and more stable connection effect compared to other simple connection methods, such as direct welding or bundling. During the use of the adjustable culture medium support, especially when the threaded rod 25 is rotated to adjust the angle of the test tube rack 28, this stable connection can ensure that the second connecting rod 283 and the threaded block 281 will not loosen or fall off, thereby ensuring the stability and reliability of the entire mechanism, allowing the support to work continuously and stably, and helping to improve the accuracy of controlling the inclination angle of the test tube during the preparation of the inclined culture medium.

[0032] In the optional scheme of this embodiment, it is more preferred that the second connecting rod 283 is L-shaped, and the L-shaped second connecting rod 283 can realize the connection between different components in a limited space. The L-shaped second connecting rod 283 can accurately control the inclination angle of the test tube rack 28 through the length ratio of its two right-angled sides and the connection position with other components. By reasonably designing the size and connection method of the L shape, the inclination angle of the test tube rack 28 can be fine-tuned to meet the precise requirements of different biological experiments on the inclination angle of the inclined culture medium, which helps to improve the accuracy and repeatability of the experiment.

[0033] In the optional scheme of this embodiment, it is more preferred to further include a bottom plate 4 and a support mechanism 1 disposed on the bottom plate 4, the support mechanism 1 includes a base 11, a mounting seat 13 fixedly disposed on the base 11, and a support seat 15 rotatably disposed on the base 11, the mounting seat 13 is used to be detachably connected to the bottom end of the housing 22 in the lowest module mechanism 2, and the support seat 15 is used to be circumferentially limitedly connected to the bottom end of the threaded rod 25 in the lowest module mechanism 2. The mounting seat 13 of the support mechanism 1 is connected to the housing 22 of the lowest module mechanism 2, and the support seat 15 is circumferentially limitedly connected to the bottom end of the threaded rod 25, providing stable support for the entire bracket.

[0034] In the optional scheme of this embodiment, it is more preferred that two symmetrically distributed plug-in plates 21 are fixed to the bottom end of each shell 22, and the plug-in plates 21 are used to be inserted into the mounting seat 13 or the top end of another shell 22. The top end of the shell 22 is provided with a first bolt 24, and the first bolt 24 is used to be threadedly connected with the plug-in plate 21 or the cover plate 31 in another module mechanism 2. The shells 22 between the module mechanisms 2 are detachably connected through the plug-in plates 21 and the first bolts 24, and the threaded rods 25 are circumferentially limitedly connected through the connecting seat 26 and the connecting head 27. This design makes the assembly and disassembly of the bracket very convenient. In actual use, the number of module mechanisms 2 can be flexibly increased or decreased according to experimental requirements to meet the preparation requirements of slant culture media of different scales, thereby improving the versatility and applicability of the bracket.

[0035] In the optional scheme of this embodiment, it is more preferred that two symmetrically distributed lifting rods 12 are further provided on the base 11, the lifting rods 12 are tilted, and the bottom ends of the lifting rods 12 are fixedly connected to the base 11. The lifting rods 12 symmetrically distributed and tilted on the base 11 facilitate the operator to carry the bracket, improve the convenience of operation, and make the entire device more convenient when transferred in different experimental scenes.

[0036] In this embodiment, a plurality of second bolts 14 are disposed on the mounting seat 13 , and the second bolts 14 are used to be threadedly connected to the plug-in board 21 in the lowermost module mechanism 2 .

[0037] In the optional scheme of this embodiment, it is more preferred that a connection seat 26 is fixedly provided at the top end of each threaded rod 25 and a connection head 27 is fixedly provided at the bottom end, and any connection seat 26 can be connected to the connection head 27 on another threaded rod 25 in a circumferentially limited manner, and any connection head 27 can be connected to the support seat 15 in a circumferentially limited manner. The connection seat 26 at the top end of the threaded rod 25 and the connection head 27 at the bottom end realize the circumferentially limited connection between the threaded rods 25 and between the threaded rods 25 and the support seat 15, ensuring that when the threaded rod 25 is rotated to adjust the inclination angle of the test tube, the power transmission between the module mechanisms 2 is stable and accurate, thereby improving the synchronization and reliability of the overall adjustment.

[0038] In the optional scheme of the present embodiment, it is more preferred that two clamping plates 286 are fixedly provided in the test tube rack 28 and are spaced apart from each other. A plurality of placement through holes are fixedly provided on each clamping plate 286, and all the placement through holes on the two clamping plates 286 correspond to each other one by one, and the two corresponding placement through holes are coaxial. A support plate 285 is provided at the bottom end of the test tube rack 28. By passing the test tube through the two corresponding placement through holes and limiting the position of the test tube by the two clamping plates 286, and supporting the bottom end of the test tube by the support plate 285, the test tube can be firmly clamped to prevent the test tube from shaking or sliding during the adjustment of the tilt angle or transportation, thereby further ensuring the stability of the experimental process.

[0039] In the optional scheme of this embodiment, it is more preferred that the two test tube racks 28 in the same module mechanism 2 are symmetrically distributed; the symmetrical distribution of the two test tube racks 28 in the same module mechanism 2 ensures the balance of the entire module mechanism 2 after the test tubes are placed, helps to maintain the overall stability of the bracket, and further improves the reliability of experimental operations.

[0040] When the culture medium adjustable support of this embodiment is working, the disc 33 is driven by rotating the rotating rod 34 to rotate the rotating shaft connected thereto, and the transmission plug 32 transmits power to the threaded rod 25 of the uppermost module mechanism 2. Since the threaded rods 25 of each module mechanism 2 are connected by the connecting seat 26 and the connecting head 27 in a circumferential limit, all the threaded rods 25 rotate synchronously. When the threaded rod 25 rotates, it is threadedly connected with the thread block 281 to move along the axial direction. One end of the L-shaped second connecting rod 283 moves with the thread block 281, driving the test tube rack 28 hinged thereto to rotate around the hinge point between the first connecting rod 284 and the shell 22, changing the inclination angle of the test tube rack 28, and the angle of the test tube placed therein changes accordingly. The shell 22 of each module mechanism 2 is detachably connected to form a whole through the plug-in board 21 and the first bolt 24 to ensure coordinated action. The mounting seat 13 of the bottom support mechanism 1 is connected to the shell 22 of the lowermost module mechanism 2 to provide support, and the support seat 15 and the bottom end of the threaded rod 25 are circumferentially limited to assist in stable rotation. The clamping plates 286 with corresponding coaxially placed through holes spaced up and down in the test tube rack 28 firmly clamp the test tubes. The symmetrically distributed test tube rack 28 enhances the overall stability, thereby achieving precise and batch adjustment of the inclination angles of multiple test tubes to meet the needs of slant culture medium preparation.

[0041] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A culture medium adjustable support, characterized in that: include: A plurality of module mechanisms distributed in sequence from top to bottom, each of the module mechanisms comprises a shell, a threaded rod, a threaded block and two test tube racks located on both sides of the shell, the shell is detachably connected to the shell in the adjacent module mechanism, two fixing plates are fixed in the shell, the threaded rod passes through the two fixing plates, each fixing plate is rotatably matched with the threaded rod and axially limitedly connected, the threaded rod is detachably connected to the threaded rod in the adjacent module mechanism, the threaded block is threadedly connected to the threaded rod, each of the test tube racks is connected to the shell through two first connecting rods, one end of the first connecting rod is hinged to the shell, and the other end is fixedly connected to the test tube rack, each of the test tube racks is connected to the threaded block through a second connecting rod, one end of the second connecting rod is fixedly connected to the threaded block, and the other end is hinged to the test tube rack; A cover plate mechanism, the cover plate mechanism includes a cover plate, a rotating rod, a disc, a rotating shaft and a transmission plug, the cover plate is detachably connected to the top end of the shell in the uppermost module mechanism, the top end of the rotating shaft is fixedly connected to the center of the disc, the rotating shaft passes through the cover plate and rotates with the cover plate, the transmission plug is fixedly connected to the bottom end of the rotating shaft, the transmission plug is used to be circumferentially limitedly connected to the top end of the threaded rod in the uppermost module mechanism, the bottom end of the rotating rod is fixedly connected to the disc, and the rotating rod is eccentric relative to the disc.

2. The culture medium adjustable support according to claim 1, characterized in that: A connecting buckle is provided on the threaded block corresponding to each of the second connecting rods, and the second connecting rod is fixedly connected to the corresponding connecting buckle.

3. The culture medium adjustable support according to claim 1, characterized in that: The second connecting rod is L-shaped.

4. The culture medium adjustable support according to claim 1, characterized in that: It also includes a bottom plate and a supporting mechanism arranged on the bottom plate, the supporting mechanism includes a base, a mounting seat fixed on the base and a supporting seat rotatably arranged on the base, the mounting seat is used to be detachably connected to the bottom end of the shell in the lowest module mechanism, and the supporting seat is used to be circumferentially limitedly connected to the bottom end of the threaded rod in the lowest module mechanism.

5. The culture medium adjustable support according to claim 4, characterized in that: Two symmetrically distributed plug-in boards are fixed to the bottom end of each shell, and the plug-in boards are used to be inserted into the mounting seat or the top end of another shell. A first bolt is provided at the top end of the shell, and the first bolt is used to be threadedly connected with a plug-in board or the cover plate in another module mechanism.

6. The culture medium adjustable support according to claim 4, characterized in that: The base is also provided with two symmetrically distributed lifting rods, the lifting rods are arranged obliquely, and the bottom ends of the lifting rods are fixedly connected to the base.

7. The culture medium adjustable support according to claim 5, characterized in that: A plurality of second bolts are arranged on the mounting seat, and the second bolts are used for threaded connection with the plug-in board in the lowermost module mechanism.

8. The culture medium adjustable support according to claim 4, characterized in that: A connecting seat is fixedly provided at the top end of each threaded rod, and a connecting head is fixedly provided at the bottom end. Any one of the connecting seats can be connected to the connecting head on another threaded rod in a circumferentially limited manner, and any one of the connecting heads can be connected to the support seat in a circumferentially limited manner.

9. The culture medium adjustable support according to claim 1, characterized in that: Two clamping plates spaced apart from each other are fixedly arranged in the test tube rack, each of the clamping plates is fixedly arranged with a plurality of placement through holes, and all the placement through holes on the two clamping plates correspond to each other one by one, and the two corresponding placement through holes are coaxial.

10. The culture medium adjustable support according to claim 1, characterized in that: The two test tube racks in the same module structure are symmetrically distributed.

Images