Cleaning device for chemical teaching equipment

Abstract

The utility model discloses a cleaning device for chemical teaching aids, and relates to the technical field of teaching aids, the cleaning device comprises a cleaning tank, and further comprises a cover plate, a supporting assembly, a cleaning assembly and an air drying assembly, and the cover plate is detachably connected with the cleaning tank; a mounting base is arranged in the cleaning tank, the supporting assembly is arranged on the mounting base, the cleaning assembly and the air drying assembly are arranged opposite to the supporting assembly, and the cleaning assembly communicates with an external water supply system; the air drying assembly comprises a fan and a flow conveying pipe. The test tubes with corresponding specifications and sizes can be placed between the pressing rod and the fixed seat by adjusting the mounting position of the pressing rod on the fixed seat, and the test tubes are abutted and limited through the pressing rod after being placed in place, so that the cleaning and placing requirements of different test tubes can be met, the use range is expanded, and the test tube cleaning and placing efficiency is improved. The use flexibility and applicability are also improved; water drops and the like attached to the inner walls of the test tubes can be dried through the air drying assembly, water stain residues are reduced, and the air drying efficiency of the test tubes is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching aid technical field especially, it is a kind of cleaning device for chemical teaching equipment. BACKGROUND

[0002] Chemistry is a natural science of studying the nature, composition, structure, change, use, method of manufacture of matter and the law of matter change. Chemistry is closely related to industry, agriculture, daily life, medicine, materials and so on. In the experimental teaching of chemistry, teaching instruments such as test tube, measuring cylinder, beaker are often used, and after the experiment, these chemical instruments need to be cleaned in time to prolong the service life of the instruments, ensure the safety of the experimental environment, and avoid the influence of residual chemicals in the instruments on subsequent experiments.

[0003] The applicant disclosed a kind of cleaning device for chemical teaching aid in the patent with the announcement number CN218191574U, including cleaning table;Cleaning table: left and right sides are respectively equipped with cleaning tank and test tube drying groove, the inside of the cleaning tank is respectively equipped with two test tube limiting support blocks in front and back, the inside of the cleaning tank is respectively equipped with two test tube cleaning units in front and back bottom end, the right side of the cleaning table is equipped with test tube drying unit;Test tube cleaning unit: it contains brush fixed shaft, connecting block and stepper motor, the lower end left front side of the cleaning table is equipped with stepper motor, the input end of the stepper motor is electrically connected to the output end of external power supply by external control switch group, the output shaft of the stepper motor is fixedly connected with the lower side of connecting block by passing through cleaning table, is equipped with test tube cleaning structure and can quickly clean the inner wall of test tube, is equipped with test tube drying structure and accelerates the drying speed of test tube, it is convenient to place and store test tube.

[0004] From the above patent, it can be seen that the cleaning device for chemical teaching aid can clean the inner wall of test tube, accelerate the drying speed of test tube, and facilitate the placement and storage of test tube, but the applicant found that after use, because the structure size of test tube limiting support block arranged in the cleaning tank is relatively fixed, the cleaning device can only clean test tubes with relatively appropriate and fixed specifications, and it is difficult to clean test tubes with different specifications, so as to not only limit the use range, but also reduce the use flexibility and applicability;At the same time, when the cleaning device is drying test tube, because test tube is placed horizontally on test tube placing block, when air blower blows air to test tube, the air output by air blower is easily blocked by test tube placing block and difficult to enter into test tube cavity, so as to reduce the drying efficiency of test tube. Based on this, the applicant further improves and optimizes the cleaning device for chemical teaching aid. UTILITY MODEL CONTENTS

[0005] The main purpose of this utility model is to provide a cleaning device for chemical teaching equipment, which aims to solve the problem that existing cleaning devices for chemical teaching equipment are difficult to clean test tubes of different sizes, which not only limits the scope of use, but also reduces the flexibility and applicability of use, as well as the drying efficiency of test tubes.

[0006] To achieve the above objectives, this utility model provides a cleaning device for chemical teaching equipment, including a cleaning tank, a cover plate, a support assembly, a cleaning assembly, and a drying assembly. The cover plate is detachably connected to the cleaning tank and is used to cover the opening of the cleaning tank. A mounting base is provided inside the cleaning tank, and the support assembly is disposed on the mounting base. The support assembly includes a fixed base for placing test tubes and a pressure rod that is movably mounted on the fixed base. The cleaning assembly and the drying assembly are disposed opposite to the support assembly. The cleaning assembly is connected to an external water supply system and is used to clean and rinse the test tubes. The drying assembly includes a fan and a delivery pipe. One end of the delivery pipe is disposed near the air outlet of the fan, and the other end of the delivery pipe extends to the opening of the test tube.

[0007] Preferably, the support assembly further includes a movable frame, the fixed base has a groove for accommodating test tubes, the movable frame is movably mounted on the fixed base, and the pressure rod is detachably mounted on the movable frame and is provided corresponding to the groove opening.

[0008] Preferably, the movable frame has a mounting hole, the pressure rod passes through the mounting hole and is threaded into the mounting hole, a flexible block is provided at one end of the pressure rod near the groove, and a wrench is provided at the other end of the pressure rod.

[0009] Preferably, the cleaning assembly includes a drive unit, a brush, and an infusion tube. The drive unit is detachably mounted on the mounting base, and the brush is detachably connected to the power end of the drive unit. The brush is used to extend into the test tube and clean the inner wall of the test tube. A limiting hole is provided on the mounting base. One end of the infusion tube is connected to an external water supply system, and the other end of the infusion tube passes through the limiting hole and extends to the opening of the test tube.

[0010] Preferably, the cleaning assembly further includes a sleeve and a telescopic rod. One end of the sleeve is detachably connected to the power output end of the drive component, one end of the telescopic rod extends into the sleeve and is threaded into the sleeve, and the end of the telescopic rod away from the sleeve is detachably connected to the brush.

[0011] Preferably, the air-drying assembly further includes an air collecting duct, which is tapered along its extension direction. The fan is disposed at one end of the air collecting duct, and the other end of the air collecting duct is detachably mounted on the mounting base. The mounting base has a positioning hole. One end of the delivery pipe is connected to the air collecting duct, and the other end of the delivery pipe passes through the positioning hole and extends to the inlet of the test tube.

[0012] Preferably, the mounting base includes a partition, and the support assembly, cleaning assembly and drying assembly are all disposed on the partition, and the partition is provided with a plurality of water-permeable holes.

[0013] Preferably, the bottom of the cleaning tank is inclined and a drain pipe is detachably installed; several supports are spaced apart on the bottom surface of the cleaning tank; a window is opened on the cover plate and a light-transmitting plate is provided at the window; a handle is provided on the cover plate.

[0014] Beneficial effects:

[0015] 1. The cleaning device for chemical teaching equipment of this utility model allows for the placement of test tubes of corresponding specifications and sizes between the pressure rod and the fixed base by adjusting the installation position of the pressure rod on the fixed base during use. After the test tube is placed in place, the pressure rod abuts and limits the test tube, thereby meeting the cleaning and placement needs of different test tubes. This not only expands the scope of application of this utility model, but also improves its flexibility and applicability.

[0016] 2. In the process of using the cleaning device for chemical teaching equipment, the fan in the air-drying component generates airflow, which is then guided and transmitted to the mouth of the test tube through the delivery pipe. This allows the airflow to smoothly enter the inner cavity of the test tube and dry the water droplets adhering to the inner wall of the test tube, thereby reducing water stains and improving the drying efficiency of the test tube.

[0017] 3. In the process of using the cleaning device for chemical teaching equipment of this utility model, the opening of the cleaning tank can be sealed by the cover plate, thereby effectively preventing liquid from splashing out or dust from entering, and the device is reliable in use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of a cleaning device for chemical teaching equipment according to an embodiment of the present invention from a first-view perspective;

[0020] Figure 2 This is a schematic diagram of the structure of a cleaning device for chemical teaching equipment according to an embodiment of the present invention from a second perspective.

[0021] Figure 3 This is a schematic diagram of the structure of a cleaning device for chemical teaching equipment from a third-person perspective, according to an embodiment of this utility model.

[0022] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a top view of a cleaning device for chemical teaching equipment according to an embodiment of the present invention.

[0024] In the diagram: 1-Cleaning tank; 2-Cover plate; 3-Support assembly; 4-Cleaning assembly; 5-Drying assembly; 6-Mounting base; 7-Fan; 8-Infusion pipe; 9-Fixed base; 10-Movable frame; 11-Pressure rod; 12-Groove; 13-Flexible block; 14-Drive component; 15-Brush; 16-Infusion pipe; 17-Limiting hole; 18-Sleeve; 19-Telescopic rod; 20-Air collection duct; 21-Positioning hole; 22-Water permeable hole; 23-Drain pipe; 24-Bracket; 25-Light-transmitting plate; 26-Handle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Example 1:

[0032] This utility model proposes a cleaning device for chemical teaching equipment.

[0033] In one embodiment of this utility model, a cleaning device for chemical teaching equipment includes a cleaning tank 1, a cover plate 2, a support component 3, a cleaning component 4, and a drying component 5. The cover plate 2 is detachably connected to the cleaning tank 1 and is used to cover the opening of the cleaning tank 1. A mounting base 6 is provided inside the cleaning tank 1, and the support component 3 is disposed on the mounting base 6. The support component 3 includes a fixed base 9 for placing test tubes and a pressure rod 11 that is movably mounted on the fixed base 9. The cleaning component 4 and the drying component 5 are disposed opposite to the support component 3. The cleaning component 4 is connected to an external water supply system and is used to clean and rinse the test tubes. The drying component 5 includes a fan 7 and a delivery pipe 8. One end of the delivery pipe 8 is disposed near the air outlet of the fan 7, and the other end of the delivery pipe 8 extends to the opening of the test tube.

[0034] Specifically, such as Figures 1 to 5As shown, in the cleaning device for chemical teaching equipment of this utility model, the cleaning tank 1 can accommodate test tubes, and the cover plate 2 is detachably installed at the opening of the cleaning tank 1 by means of hinges, etc., so that the opening of the cleaning tank 1 can be sealed by the cover plate 2 during the cleaning of test tubes, thereby preventing liquid from splashing out or dust from entering. Furthermore, since the cleaning tank 1 is equipped with a mounting base 6, and the mounting base 6 is equipped with a support component 3, when it is necessary to clean the test tubes, the user can support and place the test tubes through the fixed base 9 in the support component 3. A pressure rod 11 is movably installed on the upper limit of the fixed base 9. The pressure rod 11 and the fixed base 9 can be connected by a thread, so that the pressure rod 11 can rotate relative to the fixed base 9 and thus firmly press the test tubes onto the fixed base 9. The operation is simple and convenient. At the same time, when it is necessary to clean test tubes of different sizes, the user can adjust the installation position of the pressure rod 11 on the fixed base 9 so that test tubes of the corresponding sizes can be placed between the pressure rod 11 and the fixed base 9. After the test tubes are placed in place, the pressure rod 11 abuts and limits the test tubes, thereby meeting the cleaning and placement needs of different test tubes. This not only expands the scope of application of this utility model, but also improves the flexibility and applicability of use.

[0035] Understandably, since the cleaning component 4 is positioned relative to the supporting component 3, when the test tube is installed and placed in place, the opening of the test tube faces the cleaning component 4. The cleaning component 4 is connected to an external water supply system. The cleaning component 4 can be made of corrugated pipe or stainless steel pipe, etc., so that it can supply water to the inner cavity of the test tube and rinse the inner wall of the test tube. The cleaning component 4 can also use tools such as cleaning brushes, so as to clean the impurities attached to the inner wall of the test tube while rinsing it, thereby improving the cleaning effect of the test tube. It should be noted that the external water supply system is equipped with control elements such as speed regulating valves. These control elements can adjust the water flow rate and pressure, thereby effectively preventing the water flow or pressure from being too high and breaking the test tube, ensuring reliable use. Furthermore, after the cleaning component 4 has finished cleaning and rinsing the test tube, the support component 3 on the mounting base 6 is also equipped with a drying component 5. At this time, the fan 7 in the drying component 5 can generate airflow, and the airflow can be guided and transmitted to the mouth of the test tube through the delivery pipe 8, so that the airflow can smoothly enter the inner cavity of the test tube and dry the water droplets attached to the inner wall of the test tube. This not only reduces water stains but also improves the drying efficiency of the test tube.

[0036] In one embodiment, the support assembly 3 further includes a movable frame 10, and a groove 12 for accommodating test tubes is provided on the fixed base 9. The movable frame 10 is movably mounted on the fixed base 9, and the pressure rod 11 is detachably mounted on the movable frame 10 and is provided corresponding to the groove 12. Specifically, as shown... Figures 2 to 4As shown, the groove 12 on the fixed base 9 can be formed into a V-shaped groove, so that the groove 12 can stably support and limit the test tube. Furthermore, since the movable frame 10 is movably mounted on the fixed base 9, the movable frame 10 and the fixed base 9 can be movably mounted by means of sliding engagement. That is, a sliding groove is provided on the fixed base 9, and a slider is provided on the movable frame 10 to slide in contact with the sliding groove. This allows the movable frame 10 to slide relative to the fixed base 9. At the same time, by installing studs, pins, etc. at both ends of the sliding groove, the movable frame 10 and the fixed base 9 can be prevented from disengaging from the sliding engagement. The structural design is simple and reasonable. Understandably, since the movable frame 10 is detachably equipped with a pressure rod 11, after the test tube is placed in the groove 12, the user can adjust the installation position of the movable frame 10 on the fixed base 9 according to the length of the test tube, and after the adjustment is in place, adjust the pressure rod 11 to abut against the outer wall of the test tube, thereby limiting and fixing the test tube, effectively preventing the test tube from swaying relative to the fixed base 9 during the cleaning process, and ensuring the stability of the test tube placement.

[0037] In one embodiment, the movable frame 10 has a mounting hole, the pressure rod 11 passes through the mounting hole and is threaded into the mounting hole, a flexible block 13 is provided at one end of the pressure rod 11 near the groove 12, and a wrench is provided at the other end of the pressure rod 11. Specifically, as shown... Figure 4 As shown, by threading the pressure rod 11 into the mounting hole, it is not only easy to assemble and disassemble the pressure rod 11, but also the self-locking property of the threaded engagement limits the pressure rod 11, allowing it to firmly press the test tube into the groove 12. The structural design is simple and reasonable. Furthermore, since a flexible block 13 is provided at one end of the pressure rod 11 near the groove 12, the flexible block 13 can be made of silicone, rubber, or other materials. The flexible block 13 increases the contact area between the pressure rod 11 and the test tube, preventing the test tube from breaking due to excessive local force, ensuring reliable use. Understandably, by providing a wrench at the other end of the pressure rod 11, the user can easily tighten and adjust the pressure rod 11 without the need for other auxiliary tools, making operation simple and convenient.

[0038] In one embodiment, such as Figures 2 to 5As shown, the cleaning assembly 4 includes a drive unit 14, a brush 15, and an infusion tube 16. The drive unit 14 is detachably mounted on the mounting base 6. The brush 15 is detachably connected to the power end of the drive unit 14. The brush 15 is used to extend into the test tube and clean the inner wall of the test tube. A limiting hole 17 is provided on the mounting base 6. One end of the infusion tube 16 is connected to an external water supply system, and the other end of the infusion tube 16 passes through the limiting hole 17 and extends to the opening of the test tube. Specifically, the drive unit 14 can be an electric push rod, hydraulic cylinder, or pneumatic cylinder, etc., as in the prior art. By detachably connecting the brush 15 to the power end of the drive unit 14, the brush 15 can extend into the inner wall of the test tube and clean impurities, preventing impurities from adhering and accumulating inside the test tube. At the same time, since one end of the infusion tube 16 is connected to an external water supply system, the external water supply system can guide water flow into the test tube through the infusion tube 16 to complete the rinsing of the inner wall of the test tube. In addition, by passing the other end of the infusion tube 16 through the limiting hole 17, the installation stability of the infusion tube 16 can be ensured, preventing the infusion tube 16 from shaking randomly during the rinsing of the test tube and affecting the cleaning operation of the test tube.

[0039] In another embodiment, the cleaning assembly 4 further includes a sleeve 18 and a telescopic rod 19. One end of the sleeve 18 is detachably connected to the power output end of the drive member 14, and one end of the telescopic rod 19 extends into the sleeve 18 and is threaded into the sleeve 18. The end of the telescopic rod 19 away from the sleeve 18 is detachably connected to the brush 15. Specifically, as Figures 2 to 4 As shown, the driving component 14 can also be a motor as in the prior art. The sleeve 18 in the cleaning assembly 4 is detachably connected to the power output end of the driving component 14 by means of a threaded connection, so that the driving component 14 can drive the sleeve 18 to rotate. At the same time, since one end of the telescopic rod 19 extends into the sleeve 18 and is threadedly engaged with the sleeve 18, when the sleeve 18 rotates, the telescopic rod 19 can move relative to the sleeve 18. A brush 15 is installed at the other end of the telescopic rod 19, so that the brush 15 can move synchronously with the telescopic rod 19 to clean the impurities in the test tube. The structural design is simple and reasonable.

[0040] In one embodiment, the air-drying assembly 5 further includes an air collecting duct 20, which tapers along its extending direction. A fan 7 is disposed at one end of the air collecting duct 20, and the other end of the air collecting duct 20 is detachably mounted to a mounting base 6. The mounting base 6 has a positioning hole 21. One end of a delivery pipe 8 communicates with the air collecting duct 20, and the other end of the delivery pipe 8 passes through the positioning hole 21 and extends to the opening of the test tube. Specifically, as shown... Figure 2 and Figure 5As shown, the air collecting duct 20 collects the airflow generated by the fan 7 and guides it to the delivery pipe 8. Simultaneously, the delivery pipe 8 transports the airflow to the inlet of the test tube, ensuring smooth airflow into the test tube and thus improving the drying efficiency. Furthermore, the positioning hole 21 can limit and fix the delivery pipe 8, preventing it from shaking during the drying process and affecting its use.

[0041] In one embodiment, the mounting base 6 includes a partition, and the support assembly 3, cleaning assembly 4, and drying assembly 5 are all disposed on the partition, with a plurality of water-permeable holes 22 formed in the partition. Specifically, as shown... Figure 1 , Figure 2 and Figure 5 As shown, the inner cavity of the cleaning tank 1 can be separated by the partition. After rinsing the test tube, the water from the cleaning component 4 above the partition can flow to the bottom of the cleaning tank 1 through several water-permeable holes 22, thereby preventing water containing impurities from accumulating and remaining on the mounting base 6 and affecting the normal use of components such as the support component 3, the cleaning component 4, and the drying component 5.

[0042] In one embodiment, the bottom of the cleaning tank 1 is inclined and a drain pipe 23 is detachably installed; several supports 24 are spaced apart on the bottom surface of the cleaning tank 1; a window is opened on the cover plate 2 and a light-transmitting plate 25 is provided at the window; a handle 26 is provided on the cover plate 2. Specifically, as shown... Figure 1 As shown, because the bottom of the cleaning tank 1 is inclined and a drain pipe 23 is detachably installed, impurities can be reduced from adhering to and accumulating on the bottom of the cleaning tank 1, increasing the flow of water within the cleaning tank 1. Furthermore, the drain pipe 23 facilitates the discharge of water containing impurities outside the cleaning tank 1. It should be noted that the drain pipe 23 can be installed on the cleaning tank 1 via flanges or other means, thus facilitating disassembly, unblocking, or replacement of the drain pipe 23. Further, by periodically installing several supports 24 on the bottom surface of the cleaning tank 1, multi-point support can be provided for the cleaning tank 1, ensuring its stable installation at the preset position. Understandably, because the cover plate 2 has a window with a light-transmitting plate 25, the user can observe the cleaning process of the test tubes within the cleaning tank 1 through the window during use, making it easy to monitor the cleaning progress. Additionally, by providing a handle 26 on the cover plate 2, the user can easily open or close the cover plate 2 to retrieve or place the test tubes, making operation simple and convenient.

[0043] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cleaning device for chemical teaching equipment, comprising a cleaning tank (1), characterized in that, It also includes a cover plate (2), a support assembly (3), a cleaning assembly (4), and a drying assembly (5). The cover plate (2) is detachably connected to the cleaning tank (1) and is used to cover the opening of the cleaning tank (1). A mounting base (6) is provided in the cleaning tank (1). The support assembly (3) is provided on the mounting base (6). The support assembly includes a fixed base (9) for placing test tubes and a pressure rod (11) that is movably mounted on the fixed base (9). The cleaning assembly (4) and the drying assembly (5) are arranged relative to the support assembly (3). The cleaning assembly (4) is connected to an external water supply system and is used to clean and rinse the test tubes. The drying assembly (5) includes a fan (7) and a delivery pipe (8). One end of the delivery pipe (8) is located near the air outlet of the fan (7), and the other end of the delivery pipe (8) extends to the opening of the test tube.

2. The cleaning device for chemical teaching equipment according to claim 1, characterized in that, The support assembly (3) also includes a movable frame (10), and the fixed base (9) has a groove (12) for accommodating test tubes. The movable frame (10) is movably mounted on the fixed base (9), and the pressure rod (11) is detachably mounted on the movable frame (10) and is set corresponding to the slot of the groove (12).

3. The cleaning device for chemical teaching equipment according to claim 2, characterized in that, The movable frame (10) has an installation hole, the pressure rod (11) passes through the installation hole and is threaded into the installation hole, a flexible block (13) is provided at one end of the pressure rod (11) near the groove (12), and a wrench is provided at the other end of the pressure rod (11).

4. The cleaning device for chemical teaching equipment according to claim 1, characterized in that, The cleaning assembly (4) includes a drive unit (14), a brush (15), and an infusion tube (16). The drive unit (14) is detachably mounted on the mounting base (6). The brush (15) is detachably connected to the power end of the drive unit (14). The brush (15) is used to extend into the test tube and clean the inner wall of the test tube. A limiting hole (17) is provided on the mounting base (6). One end of the infusion tube (16) is connected to an external water supply system, and the other end of the infusion tube (16) passes through the limiting hole (17) and extends to the opening of the test tube.

5. A cleaning device for chemical teaching equipment according to claim 4, characterized in that, The cleaning assembly (4) further includes a sleeve (18) and a telescopic rod (19). One end of the sleeve (18) is detachably connected to the power output end of the drive member (14). One end of the telescopic rod (19) extends into the sleeve (18) and is threadedly engaged with the sleeve (18). The end of the telescopic rod (19) away from the sleeve (18) is detachably connected to the brush (15).

6. A cleaning device for chemical teaching equipment according to claim 1, characterized in that, The air drying assembly (5) also includes an air collecting duct (20), which is tapered along its extension direction. The fan (7) is located at one end of the air collecting duct (20), and the other end of the air collecting duct (20) is detachably mounted on the mounting base (6). The mounting base (6) has a positioning hole (21). One end of the delivery pipe (8) is connected to the air collecting duct (20), and the other end of the delivery pipe (8) passes through the positioning hole (21) and extends to the opening of the test tube.

7. A cleaning device for chemical teaching equipment according to any one of claims 1-6, characterized in that, The mounting base (6) includes a partition, and the support component (3), cleaning component (4) and drying component (5) are all disposed on the partition, and the partition is provided with a plurality of water-permeable holes (22).

8. A cleaning device for chemical teaching equipment according to any one of claims 1-6, characterized in that, The bottom of the cleaning tank (1) is inclined and a drain pipe (23) is detachably installed; several supports (24) are spaced apart on the bottom surface of the cleaning tank (1); a window is opened on the cover plate (2) and a light-transmitting plate (25) is provided at the window; a handle (26) is provided on the cover plate (2).

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