Multi-test-tube cleaning equipment for chemical experiment

Abstract

The utility model discloses multiple test tube cleaning equipment for chemical experiments, and relates to the technical field of chemical experiments. The test tube cleaning device comprises a cleaning part, the cleaning part is used for placing test tubes, and a plurality of test tubes are cleaned while cleaning liquid is placed in the cleaning part; and the scrubbing part is arranged above the cleaning part. By arranging the scrubbing assembly, specifically after test tubes are placed and immersed in cleaning liquid in the cleaning box, an electric push rod is started to drive a cover plate to move downwards so that the cover plate can be connected with the cleaning box in an inserted and sealed mode, meanwhile, brushes can be inserted into the corresponding test tubes, and at the moment, a second motor is started to drive a first gear to rotate; when the test tube cleaning device is used, a gear I drives a plurality of gears II to rotate through a gear ring, a brush is driven to rotate through a rotating shaft, and at the moment, the brush scrubs the inner wall of a test tube, so that the inner wall of the test tube can be quickly scrubbed, the cleaning effect is improved, a plurality of test tubes can be cleaned at the same time, and the efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the field of chemical experimental technology, and in particular relates to a multi-test tube cleaning device for chemical experiments. Background Technology

[0002] Like physics, chemistry is a fundamental science of natural science. Chemistry is an experimental science that requires the use of numerous test tubes, which need to be cleaned after use.

[0003] Existing test tube cleaning equipment typically involves directly immersing test tubes in a cleaning tank for rinsing. However, direct rinsing is insufficient to remove materials adhering to the inside of the test tubes, resulting in poor cleaning performance and affecting subsequent use. Alternatively, after immersion in the cleaning tank, workers need to use brushes to scrub the inside of each test tube individually, which not only increases labor but also reduces cleaning efficiency. Therefore, we propose a multi-test tube cleaning device for chemical experiments. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-test-tube cleaning device for chemical experiments. By setting up a brushing assembly, specifically, after the test tubes are placed and immersed in the cleaning solution in the cleaning tank, an electric push rod is activated to move the cover plate downwards, thereby sealing it with the cleaning tank. Simultaneously, a brush is inserted into the corresponding test tube. At this time, a second motor is activated, driving a first gear to rotate. The first gear, through a gear ring, drives several second gears to rotate, which in turn drives the brush to rotate via a shaft. The brush then brushes the inner wall of the test tube. This method can quickly clean the inner wall of the test tubes, improving the cleaning effect and allowing for simultaneous cleaning of multiple test tubes, thus increasing efficiency. This solves the problem that existing test tube cleaning equipment typically involves directly rinsing the test tubes in a cleaning tank, which is insufficient to remove adhering materials, or requires workers to use brushes to scrub the inside of each test tube individually, resulting in low cleaning efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a multi-test-tube cleaning device for chemical experiments, comprising a cleaning section for placing test tubes and simultaneously cleaning multiple test tubes with cleaning solution; and

[0007] A scrubbing section is provided above a cleaning section and is used in conjunction with the cleaning section to clean the inner walls of multiple test tubes simultaneously.

[0008] The scrubbing section uses a lifting mechanism to open or close the cleaning unit, reducing splashing during the cleaning process.

[0009] Furthermore, the cleaning unit includes a cleaning assembly for storing cleaning solution and for immersing the test tubes in the cleaning solution during cleaning.

[0010] A placement component is installed inside the cleaning component and is used to place multiple test tubes simultaneously and arrange the multiple test tubes.

[0011] A positioning component, comprising three groups arranged in a circular array outside the placement component, is used to position the placement component so that the test tube corresponds to the washing section; and

[0012] A stirring component is disposed below the placement component and is used to agitate the cleaning fluid to increase its flow.

[0013] The placement component can be removed from the cleaning component to place the test tube on the placement component, or to remove the test tube from the placement component. When the placement component moves, the positioning component limits the placement ring.

[0014] Furthermore, the scrubbing unit includes a power assembly for providing power during scrubbing;

[0015] A scrubbing assembly, mounted at the bottom of the power assembly, comprising several groups arranged in a circular array, is used to scrub the inner wall of the test tube; and

[0016] A transmission assembly, which is installed inside the power assembly, is used to transmit power from the power assembly to the scrubbing assembly.

[0017] In this system, the power component transmits power to the transmission component, which then transmits the power to several sets of brushing components, enabling multiple sets of brushing components to perform brushing simultaneously.

[0018] Furthermore, the cleaning assembly includes a cleaning tank, and the placement assembly includes a placement ring disposed within the cleaning tank. A connecting frame is mounted on the inner surface of the placement ring, and a pull rod is mounted at the top center of the connecting frame. Three positioning blocks are fixedly connected to the outer surface of the placement ring, and positioning holes are formed inside the positioning blocks. Several placement holes are formed inside the placement ring. It can be understood that the connecting frame is fixed to the placement ring by welding, and the pull rod is fixed to the top of the connecting frame by welding.

[0019] The placement ring holds multiple test tubes simultaneously through several placement holes, and can be lifted upwards by pulling a lever. The bottom of the placement ring is equipped with three support legs for supporting the placement ring.

[0020] Furthermore, the power assembly includes a cover plate, a baffle is installed on the top of the cover plate, a connecting block is fixedly connected to the right side of the cover plate, a second motor is fixedly connected to the top of the baffle by bolts, and a first gear is fixedly connected to the bottom of the second motor by bolts; the bottom of the cover plate is positioned and fitted with the top of the cleaning tank to seal the cleaning tank, thereby preventing water from overflowing.

[0021] The shield is used for blocking, and the second motor is used to drive the first gear to rotate and provide power, so that the power is transmitted through the transmission assembly.

[0022] Furthermore, the brushing assembly includes a brush, a rotating shaft is fixedly connected to the top of the brush, the rotating shaft passes through the brush and is rotatably connected to the brush through a bearing, and a gear two is fixedly connected to the top of the rotating shaft; it can be understood that the brush is installed at the bottom of the rotating shaft by bolts, and the gear two is fixed to the top of the rotating shaft by bolts.

[0023] The brush is made of nylon, making it relatively soft. Two limiting protrusions are installed on the shaft, located at the top and bottom of the cover plate, respectively, to limit and support the shaft.

[0024] Furthermore, the transmission assembly includes a gear ring, the outer and inner surfaces of which are toothed. The outer ring meshes with a first gear, and the inner ring meshes with a second gear. An annular limiting groove is provided at the bottom of the gear ring, and a limiting support ring is rotatably connected to the bottom of the gear ring through the annular limiting groove. The bottom of the limiting support ring is fixedly connected to the top of the cover plate. The limiting support ring is used to support the gear ring, making the gear ring more stable when rotating. The inner and outer rings of the gear ring mesh with the first and second gears respectively to transmit power.

[0025] The gear ring is used to transmit the power output of gear one to gear two, and gear two drives the brush to rotate through the rotating shaft. The limiting support ring is used to support and limit the gear ring.

[0026] Furthermore, the positioning component includes a positioning seat fixedly connected to the inner wall of the cleaning tank, and a positioning rod is provided on the outer side of the positioning seat. The bottom of the positioning rod is installed with the inner wall of the cleaning tank. After the test tube is placed, the pull rod is pulled to lift the placement ring and align the positioning block with the positioning rod so that the positioning block and the positioning rod are inserted. Then the placement ring is lowered so that the test tube is immersed in the cleaning solution. The positioning is achieved by the cooperation of the positioning block and the positioning rod, so that the brush can be smoothly aligned with the test tube.

[0027] The positioning seat faces the outer ring of the placement ring and contacts it to limit the placement ring. The positioning rod is positioned and inserted into the positioning hole on the positioning block. When the positioning block on the placement ring is inserted into the positioning rod, it is used to align the test tube with the brush.

[0028] Furthermore, the agitation assembly includes a rotating rod rotatably connected to the bottom of the cleaning tank, a motor is fixedly connected to the bottom of the cleaning tank, the top output end of the motor is fixedly connected to the bottom of the rotating rod by bolts, and several agitator blades are fixedly connected to the outer surface of the rotating rod by welding.

[0029] The rotating rod and the agitator are both located below the placement ring, and the agitator is designed in the form of blades to increase the flowability of the cleaning fluid.

[0030] Furthermore, a fixed base is fixedly connected to the right side of the cleaning tank. An electric push rod and two limiting rods are fixedly connected to the top of the fixed base. The top output end of the electric push rod is fixedly connected to the connecting block by bolts. The two limiting rods pass through the connecting block and slide and limit the connection block. A drain pipe is fixedly connected to the left side of the cleaning tank, and a valve is installed on the drain pipe. When the electric push rod is activated, it drives the connecting block to move downward and moves the cover plate together. The connecting block will slide on the limiting rods, making the movement of the connecting block and the cover plate more stable. When it is necessary to replace the cleaning fluid in the cleaning tank, the valve on the drain pipe on the left side can be opened to drain the liquid in the cleaning tank for replacement.

[0031] The electric push rod drives the connecting block to rise and fall together with the cover plate. When the cover plate moves up and down, it slides on the limiting rod through the connecting block to assist in limiting the cover plate.

[0032] This utility model has the following beneficial effects:

[0033] This invention features a brushing assembly. Specifically, after the test tubes are placed and immersed in the cleaning solution in the cleaning tank, an electric push rod is activated to move the cover plate downwards, thus sealing it with the cleaning tank. Simultaneously, a brush is inserted into the corresponding test tube. At this point, a second motor is activated, driving a first gear to rotate. The first gear, through a gear ring, drives several second gears to rotate, which in turn drives the brush to rotate via a shaft. The brush then brushes the inner wall of the test tube. This method allows for rapid cleaning of the test tube's inner wall, improving cleaning efficiency and enabling simultaneous cleaning of multiple test tubes.

[0034] This invention incorporates a stirring component. Specifically, during the brushing process, a motor is started, causing the rotating rod to rotate slowly. The stirring blades then rotate along with the motor, thus agitating the cleaning solution within the cleaning tank. This allows the cleaning solution to tumble and flow within the tank, improving the cleaning effect on the outer wall of the test tube. This allows for simultaneous cleaning of both the outer and inner walls of the test tube, resulting in higher efficiency.

[0035] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0038] Figure 2 This is a schematic diagram of the internal structure of the cleaning box of this utility model;

[0039] Figure 3 This is a schematic diagram of the overall structure of the placement ring of this utility model;

[0040] Figure 4 This is a frontal cross-sectional schematic diagram of the overall structure of the cleaning box of this utility model;

[0041] Figure 5 This is a front view cross-sectional structural diagram of the baffle shell of this utility model;

[0042] Figure 6 This utility model Figure 5 A magnified structural diagram of A in the diagram.

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 1. Cleaning section; 11. Cleaning assembly; 111. Cleaning box; 12. Placement assembly; 121. Placement ring; 122. Connecting frame; 123. Pull rod; 124. Positioning block; 125. Placement hole; 13. Positioning assembly; 131. Positioning seat; 132. Positioning rod; 14. Agitation assembly; 141. Rotating rod; 142. Motor 1; 143. Agitating blade; 2. Scrubbing section; 21. Power assembly; 211. Cover plate; 212. Baffle; 213. Connecting block; 214. Motor 2; 215. Gear 1; 22. Scrubbing assembly; 221. Brush; 222. Rotating shaft; 223. Gear 2; 23. Transmission assembly; 231. Gear ring; 232. Limiting support ring; 3. Fixed seat; 31. Electric push rod; 32. Limiting rod. Detailed Implementation

[0045] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] Please see Figures 1-6 As shown, this utility model is a multi-test-tube cleaning device for chemical experiments, including a cleaning unit 1, which is used to place test tubes and simultaneously clean multiple test tubes with cleaning solution; and

[0047] The brushing unit 2 is located above the cleaning unit 1 and is used in conjunction with the cleaning unit 1 to clean the inner walls of multiple test tubes simultaneously.

[0048] The scrubbing section 2 uses a lifting mechanism to open or close the cleaning section 1, reducing splashing during the cleaning process.

[0049] The cleaning unit 1 includes a cleaning assembly 11, which is used to store cleaning solution and allows the test tubes to be immersed in the cleaning solution during cleaning.

[0050] Placement component 12 is installed inside cleaning component 11. Placement component 12 is used to place multiple test tubes simultaneously and arrange the multiple test tubes.

[0051] Positioning components 13 are configured in three groups and distributed in a circular array outside the placement component 12. The positioning components 13 are used to position the placement component 12 so that the test tube corresponds to the washing section 2; and

[0052] A stirring component 14 is disposed below the placement component 12 and is used to agitate the cleaning fluid to increase its flow.

[0053] The placement component 12 can be removed from the cleaning component 11 to place the test tube on the placement component 12 or to remove the test tube from the placement component 12. When the placement component 12 moves, the positioning component 13 limits the placement ring 121.

[0054] The scrubbing unit 2 includes a power assembly 21, which provides power for scrubbing.

[0055] A scrubbing assembly 22 is installed at the bottom of the power assembly 21, and several sets of the scrubbing assembly 22 are arranged in a circumferential array. The scrubbing assembly 22 is used to scrub the inner wall of the test tube; and

[0056] Transmission assembly 23 is installed inside power assembly 21 and is used to transmit power from power assembly 21 to brush assembly 22.

[0057] In this process, the power component 21 transmits power to the transmission component 23, and the transmission component 23 then transmits power to several sets of brushing components 22 simultaneously, so that multiple sets of brushing components 22 can perform brushing at the same time.

[0058] The cleaning assembly 11 includes a cleaning tank 111, and the placement assembly 12 includes a placement ring 121 disposed in the cleaning tank 111. A connecting frame 122 is installed on the inner surface of the placement ring 121, and a pull rod 123 is installed at the top center of the connecting frame 122. Three positioning blocks 124 are fixedly connected to the outer surface of the placement ring 121. Positioning holes are opened inside the positioning blocks 124, and a number of placement holes 125 are opened inside the placement ring 121.

[0059] The placement ring 121 holds several test tubes simultaneously through several placement holes 125, and can be lifted upward by pulling the pull rod 123. The bottom of the placement ring 121 is equipped with three support legs for supporting the placement ring.

[0060] The power assembly 21 includes a cover plate 211, a baffle 212 is installed on the top of the cover plate 211, a connecting block 213 is fixedly connected to the right side of the cover plate 211, a second motor 214 is fixedly connected to the top of the baffle 212 by bolts, and a first gear 215 is fixedly connected to the bottom of the second motor 214 by bolts.

[0061] Among them, the baffle 212 is used for shielding, and the second motor 214 is used to drive the first gear 215 to rotate to provide power, so that the power is transmitted through the transmission component 23.

[0062] The scrubbing assembly 22 includes a brush 221, with a rotating shaft 222 fixedly connected to the top of the brush 221. The rotating shaft 222 passes through the brush 221 and is rotatably connected to the brush 221 via a bearing. A gear 223 is fixedly connected to the top of the rotating shaft 222. After the test tubes are placed and immersed in the cleaning solution in the cleaning tank 111, the electric push rod 31 is activated to move the cover plate 211 downwards, thereby inserting and sealing it with the cleaning tank 111. At the same time, the brush 221 will be inserted into the corresponding test tube. At this time, the motor 214 is activated to drive the gear 215 to rotate. The gear 215 will drive several gears 223 to rotate through the gear ring 231, and drive the brush 221 to rotate through the rotating shaft 222. At this time, the brush 221 scrubs the inner wall of the test tube. This method can quickly scrub the inner wall of the test tube, which not only improves the cleaning effect, but also allows multiple test tubes to be cleaned at the same time, making it more efficient.

[0063] The brush 221 is made of nylon material, making the brush 221 relatively soft. Two limiting protrusions are installed on the rotating shaft 222, which are distributed on the top and bottom of the cover plate 211 respectively, to limit and support the rotating shaft 222.

[0064] The transmission assembly 23 includes a gear ring 231. Both the outer and inner surfaces of the gear ring 231 are toothed. The outer ring of the gear ring 231 meshes with a first gear 215, and the inner ring of the gear ring 231 meshes with a second gear 223. An annular limiting groove is provided at the bottom of the gear ring 231. A limiting support ring 232 is rotatably connected to the bottom of the gear ring 231 through the annular limiting groove. The bottom of the limiting support ring 232 is fixedly connected to the top of the cover plate 211.

[0065] Among them, the gear ring 231 is used to transmit the power output of the first gear 215 to the second gear 223, and the second gear 223 drives the brush 221 to rotate through the rotating shaft 222. The limiting support ring 232 is used to support and limit the gear ring 231.

[0066] The positioning component 13 includes a positioning seat 131 fixedly connected to the inner wall of the cleaning tank 111, and a positioning rod 132 is provided on the outer side of the positioning seat 131. The bottom of the positioning rod 132 is installed with the inner wall of the cleaning tank 111.

[0067] The positioning seat 131 is in contact with the outer ring of the placement ring 121 on the side facing the placement ring 121, which is used to limit the placement ring 121. The positioning rod 132 is positioned and inserted into the positioning hole on the positioning block 124. When the positioning block 124 on the placement ring 121 is inserted into the positioning rod 132, it is used to align the test tube with the brush 221.

[0068] The stirring assembly 14 includes a rotating rod 141 rotatably connected to the bottom of the cleaning tank 111. A motor 142 is fixedly connected to the bottom of the cleaning tank 111. The top output end of the motor 142 is fixedly connected to the bottom of the rotating rod 141 by bolts. Several stirring blades 143 are fixedly connected to the outer surface of the rotating rod 141 by welding. When brushing, the motor 142 is started to drive the rotating rod 141 to rotate slowly, and the stirring blades 143 rotate together, thereby stirring the cleaning liquid in the cleaning tank 111. This allows the cleaning liquid to roll and flow in the cleaning tank 111. Through the flow of the cleaning liquid, the cleaning effect on the outer wall of the test tube can be improved, and the outer and inner walls of the test tube can be cleaned at the same time, which is more efficient.

[0069] The rotating rod 141 and the stirring blade 143 are both located below the placement ring 121, and the stirring blade 143 is in the form of a blade to increase the flowability of the cleaning fluid.

[0070] A fixed base 3 is fixedly connected to the right side of the cleaning tank 111. An electric push rod 31 and two limit rods 32 are fixedly connected to the top of the fixed base 3. The top output end of the electric push rod 31 is fixedly connected to the connecting block 213 by bolts. The two limit rods 32 pass through the connecting block 213 and slide and limit the connecting block 213. A drain pipe is fixedly connected to the left side of the cleaning tank 111. A valve is installed on the drain pipe.

[0071] The electric push rod 31 drives the connecting block 213 to rise and fall together with the cover plate 211. When the cover plate 211 moves up and down, it slides on the limit rod 32 through the connecting block 213 to assist in limiting the cover plate 211.

[0072] One specific application of this embodiment is:

[0073] In use, pulling the lever 123 along with the connecting bracket 122 causes the placement ring 121 to move upwards, disengaging the positioning block 124 from the positioning rod 132 and moving it above the positioning seat 131. Then, rotating the placement ring 121 moves the positioning block 124 to the top of the positioning seat 131, allowing the placement ring 121 to be lowered. At this point, the positioning block 124 contacts the top of the positioning seat 131 for support. Next, the cleaning solution is poured into the cleaning tank 111, and then the test tubes to be cleaned are inserted sequentially into the placement holes 125 on the placement ring 121 to complete the process. After placing the test tube, pull the lever 123 to lift the placement ring 121 and align the positioning block 124 with the positioning rod 132 so that the positioning block 124 and the positioning rod 132 are inserted. Then, lower the placement ring 121 so that the test tube is immersed in the cleaning solution. The positioning block 124 and the positioning rod 132 are used to position the test tube so that the brush 221 can be smoothly aligned with the test tube. Since the bottom of the placement ring 121 is equipped with a support leg, after the placement ring 121 is placed into the cleaning tank 111, the support leg contacts the bottom of the inner wall of the cleaning tank 111, thereby supporting and limiting the placement ring 121.

[0074] Then, the electric push rod 31 is activated, causing the connecting block 213 to move downwards, and also causing the cover plate 211 to move together. The connecting block 213 will slide on the limit rod 32, making the movement of the cover plate 211 more stable. When the cover plate 211 moves to the top of the cleaning tank 111, it will be inserted into the cleaning tank 111, thereby sealing the cleaning tank 111. At the same time, the brush 221 will be inserted into the corresponding test tube. At this time, the second motor 214 is activated, driving the first gear 215 to rotate. The first gear 215 will drive several second gears 223 to rotate through the gear ring 231. When the gear ring 231 rotates on the limiting support ring 232, several gears 223 drive the brush 221 to rotate through the rotating shaft 222. At this time, the brush 221 brushes the inner wall of the test tube. The brush 221 is made of nylon material, making the brush 221 soft and thus not affecting the test tube. At the same time as brushing, the motor 142 is started to drive the rotating rod 141 to rotate slowly, and the stirring blade 143 rotates along with it, thereby stirring the cleaning liquid in the cleaning tank 111. Through the flow of the cleaning liquid, the cleaning effect on the outer wall of the test tube can be improved.

[0075] After the final cleaning is completed, stop motor 214, then start electric push rod 31 to push cover 211 upwards to reset it, thus opening cleaning tank 111. At the same time, stop motor 142 to stop stirring blade 143 from rotating. Then pull rod 123 to lift placement ring 121, and the cleaned test tubes can be taken out one by one. When it is necessary to replace the cleaning fluid in cleaning tank 111, open the valve on the drain pipe on the left side to drain the liquid in cleaning tank 111 for replacement.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-test-tube cleaning device for chemical experiments, characterized in that, include: The cleaning unit (1) is used to put in test tubes and put in cleaning solution to clean multiple test tubes at the same time. as well as A brushing section (2) is provided above the cleaning section (1). The brushing section (2) is used to work with the cleaning section (1) to clean the inner walls of multiple test tubes at the same time. The brushing section (2) uses a lifting mechanism to open or close the cleaning section (1) to reduce splashing during the cleaning process.

2. The chemical experiment multi-test-tube cleaning device according to claim 1, characterized in that, The cleaning unit (1) includes a cleaning assembly (11) for storing cleaning solution and for immersing the test tubes in the cleaning solution during cleaning. Placement component (12), which is installed inside cleaning component (11), is used to place multiple test tubes at the same time and arrange the multiple test tubes; Positioning component (13), the positioning component (13) is set in three groups and distributed in a circular array on the outside of the placement component (12). The positioning component (13) is used to position the placement component (12) so that the test tube can correspond to the brushing part (2). as well as A stirring component (14) is disposed below the placement component (12) for agitating the cleaning fluid to increase its flow. The placement component (12) can be removed from the cleaning component (11) to place the test tube on the placement component (12) or to remove the test tube from the placement component (12), and the positioning component (13) limits the placement ring (121) when the placement component (12) moves.

3. The multi-test-tube cleaning device for chemical experiments according to claim 2, characterized in that, The scrubbing unit (2) includes a power assembly (21) for providing power during scrubbing; A scrubbing assembly (22) is installed at the bottom of the power assembly (21), and several sets of the scrubbing assemblies (22) are arranged in a circular array. The scrubbing assembly (22) is used to scrub the inner wall of the test tube; and A transmission assembly (23) is installed inside the power assembly (21) and is used to transmit the power of the power assembly (21) to the brushing assembly (22). In this process, the power component (21) transmits power to the transmission component (23), and the transmission component (23) then transmits power to several sets of brushing components (22) simultaneously, so that multiple sets of brushing components (22) can perform brushing simultaneously.

4. The multi-test-tube cleaning device for chemical experiments according to claim 3, characterized in that, The cleaning assembly (11) includes a cleaning tank (111), and the placement assembly (12) includes a placement ring (121) disposed in the cleaning tank (111). A connecting frame (122) is installed on the inner surface of the placement ring (121), and a pull rod (123) is installed at the top center of the connecting frame (122). Three positioning blocks (124) are fixedly connected to the outer surface of the placement ring (121). Positioning holes are opened inside the positioning blocks (124), and several placement holes (125) are opened inside the placement ring (121). The placement ring (121) holds several test tubes simultaneously through several placement holes (125), and can be lifted upward by pulling the pull rod (123). The bottom of the placement ring (121) is equipped with three support legs for supporting the placement ring.

5. A multi-test-tube cleaning device for chemical experiments according to claim 4, characterized in that, The power assembly (21) includes a cover plate (211), a baffle (212) is installed on the top of the cover plate (211), a connecting block (213) is fixedly connected to the right side of the cover plate (211), a second motor (214) is fixedly connected to the top of the baffle (212) by bolts, and a first gear (215) is fixedly connected to the bottom of the second motor (214) by bolts. Among them, the cover (212) is used for shielding, and the second motor (214) is used to drive the first gear (215) to rotate to provide power, so that the power is transmitted through the transmission assembly (23).

6. A multi-test-tube cleaning device for chemical experiments according to claim 5, characterized in that, The brushing assembly (22) includes a brush (221), a rotating shaft (222) is fixedly connected to the top of the brush (221), the rotating shaft (222) passes through the brush (221) and is rotatably connected to the brush (221) through a bearing, and a gear (223) is fixedly connected to the top of the rotating shaft (222). Among them, the brush (221) is made of nylon material, which makes the brush (221) relatively soft. Two limiting protrusions are installed on the shaft (222) and are distributed on the top and bottom of the cover plate (211) respectively, which are used to limit and support the shaft (222).

7. A multi-test-tube cleaning device for chemical experiments according to claim 6, characterized in that, The transmission assembly (23) includes a gear ring (231), the outer and inner surfaces of which are toothed. The outer ring of the gear ring (231) meshes with gear one (215), and the inner ring of the gear ring (231) meshes with gear two (223). An annular limiting groove is provided at the bottom of the gear ring (231). A limiting support ring (232) is rotatably connected to the bottom of the gear ring (231) through the annular limiting groove. The bottom of the limiting support ring (232) is fixedly connected to the top of the cover plate (211). Among them, the gear ring (231) is used to transmit the power output of gear one (215) to gear two (223), and gear two (223) drives the brush (221) to rotate through the rotating shaft (222). The limiting support ring (232) is used to support and limit the gear ring (231).

8. A multi-test-tube cleaning device for chemical experiments according to claim 5, characterized in that, The positioning component (13) includes a positioning seat (131) fixedly connected to the inner wall of the cleaning tank (111), and a positioning rod (132) is provided on the outer side of the positioning seat (131). The bottom of the positioning rod (132) is installed with the inner wall of the cleaning tank (111). The positioning seat (131) is in contact with the outer ring of the placement ring (121) on the side facing the placement ring (121) to limit the placement ring (121). The positioning rod (132) is positioned and inserted into the positioning hole on the positioning block (124). When the positioning block (124) on the placement ring (121) is inserted into the positioning rod (132), it is used to align the test tube with the brush (221).

9. A multi-test-tube cleaning device for chemical experiments according to claim 8, characterized in that, The agitation assembly (14) includes a rotating rod (141) rotatably connected to the bottom of the cleaning tank (111). A motor (142) is fixedly connected to the bottom of the cleaning tank (111). The top output end of the motor (142) is fixedly connected to the bottom of the rotating rod (141) by bolts. Several agitator blades (143) are fixedly connected to the outer surface of the rotating rod (141) by welding. The rotating rod (141) and the stirring blade (143) are both located below the placement ring (121), and the stirring blade (143) is in the form of a blade to increase the fluidity of the cleaning liquid.

10. A multi-test-tube cleaning device for chemical experiments according to claim 9, characterized in that, A fixed base (3) is fixedly connected to the right side of the cleaning tank (111). An electric push rod (31) and two limiting rods (32) are fixedly connected to the top of the fixed base (3). The top output end of the electric push rod (31) is fixedly connected to the connecting block (213) by bolts. The two limiting rods (32) pass through the connecting block (213) and slide and limit the connection with the connecting block (213). A drain pipe is fixedly connected to the left side of the cleaning tank (111), and a valve is installed on the drain pipe. The electric push rod (31) drives the connecting block (213) to rise and fall together with the cover plate (211). When the cover plate (211) moves up and down, it slides on the limiting rod (32) through the connecting block (213) to assist in limiting the cover plate (211).

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