Cleaning device for laboratory test tubes

Abstract

The utility model provides a laboratory test tube cleaning device which comprises a shell, a fixing frame is movably installed on the upper portion in the shell, and a test tube frame is fixedly installed on the lower portion in the shell. According to the cleaning device for the laboratory test tubes, the sliding grooves, the clamping blocks, the fixing ends and the grooves are arranged, the sliding grooves provide rails for sliding of the clamping blocks, the clamping blocks can flexibly move on the test tube rack, the clamping blocks are matched with the sliding grooves through the sliding blocks, the positions of the clamping blocks can be adjusted according to the tube diameters of the test tubes, and screw holes in the fixing ends are used for inserting bolts or screws; when the clamping blocks are adjusted to proper positions to be attached to the outer wall of the test tube, bolts or screws penetrate through the screw holes, the two clamping blocks are tightly fixed together, stable clamping of the test tube is achieved, the semi-arc design of the grooves is matched with the shape of the outer wall of the test tube, and when the clamping blocks fix the test tube, the grooves can be tightly attached to the outer wall of the test tube. And the contact area is increased, so that the clamping stability and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory equipment, and more specifically, to a cleaning device for laboratory test tubes. Background Art

[0002] Experimental instruments are instruments used in specific natural science experiments. Mainly, physics, chemistry, and biology use more instruments. Commonly used modern experimental instruments include test tubes, beakers, evaporating dishes, etc. Test tubes are commonly used instruments in chemical laboratories and are used as reaction vessels for a small amount of reagents. They are used at normal temperature or when heated. When cleaning existing laboratory test tubes, most of them are manually cleaned inside the test tubes. Since most test tubes are glass instruments, manual hand washing cannot control the strength, which easily causes damage to the instruments and then cuts the hands of the staff.

[0003] Regarding the above problems, regarding the technical problem that manual hand washing cannot control the strength, easily causes damage to the instruments, and then cuts the hands of the staff, after a large amount of retrieval, a cleaning device for laboratory test tubes with a patent application number of 202221134549.6 was found, belonging to the field of laboratory equipment, including a connecting plate, and a scrubbing component is fixedly installed at one end of the connecting plate; in this utility model, through the setting of an adjusting component and a scrubbing component, the automation of test tube cleaning can be realized, and the damage to the instruments caused by excessive force during manual cleaning can be avoided. However, the technical solutions provided by this patent have the following problems:

[0004] (1) After cleaning the test tube, there will still be some cleaning agents and sewage inside the test tube. Even after flushing the inside of the test tube, there will still be residues of clear water. These residues still need to be manually cleaned. It is necessary to manually hold objects such as absorbent cotton and insert them into the test tube for wiping. During the wiping process, the test tube needs to be held tightly to avoid the test tube slipping out of the hand. However, when the force is too large, the test tube may still be damaged and cannot be used;

[0005] (2) When cleaning the test tube, the test tube is not limited. When the test tube is initially rinsed by water flow, there is some water remaining on the surface of the test tube. This water will make the test tube slippery and easy to fall out of the hand. And when cleaning with a cleaning agent later, the test tube will become even more slippery. Holding the test tube easily causes the test tube to slip out of the hand. After slipping out and falling, it is easy for the test tube to break;

[0006] The utility model can play a role in fixing and restricting the test tube when the cleaning of the test tube is completed, and canceling the way of holding the test tube for cleaning, making the test tube more stable during cleaning and not easily broken, and being able to fix, clean, and dry test tubes of different specifications. Summary of the Utility Model

[0007] The present utility model aims to solve the technical problems raised in the above-mentioned background art and provides a cleaning device for laboratory test tubes.

[0008] To achieve the above object, the present utility model provides the following technical solution: A cleaning device for laboratory test tubes, comprising: a housing, a fixing frame is movably installed above the interior of the housing, water storage tanks are fixedly installed on the front and left sides below the fixing frame, a protective shell one and a protective shell two are respectively fixedly installed on the right and back sides below the fixing frame, a test tube rack is fixedly installed below the interior of the housing, hydraulic rods are fixedly installed around the bottom of the fixing frame, and the other ends of the hydraulic rods are respectively fixedly installed with the water storage tanks, the protective shell one and the protective shell two. The protective shell one and the protective shell two have the same structure, and servo motors are fixedly installed at equal distances inside. The test tube rack is arranged directly below the water storage tank.

[0009] Further preferred scheme: A workbench is fixedly installed at the bottom inside the housing, a work groove is opened at the upper end of the workbench, the test tube rack is fixedly installed inside the test tube rack, a motor is fixedly installed at the upper end of the housing, and the output end of the motor passes through the upper end of the housing and is fixedly connected with the upper end of the fixing frame.

[0010] Further preferred scheme: Water storage pipes are fixedly installed at the bottoms of the water storage tanks, spray heads are fixedly installed at the bottoms of the water storage pipes, valves are fixedly installed at the upper ends of the water storage tanks, and water inlet holes are opened at one ends of the water storage tanks.

[0011] Further preferred scheme: Cleaning rollers are rotatably installed at equal distances at the bottom of the protective shell one, the cleaning rollers are fixedly connected with the output ends of the servo motors, and a scraping layer is arranged on the outer surface of the cleaning rollers. The scraping layer is any one of a silica gel layer, a rubber layer, and a polyester fiber layer.

[0012] Further preferred scheme: Water absorption rollers are fixedly installed at equal distances at the bottom of the protective shell two, and the water absorption rollers are fixedly connected with the output ends of the servo motors inside the protective shell two.

[0013] Further preferred scheme: Chute grooves are opened on the left and right sides at the upper end of the test tube rack, clamping blocks are slidably installed on the front and rear sides at the upper end of the test tube rack, sliders are fixedly installed on the left and right sides at the bottom of the clamping blocks, and the sliders are adapted to the chute grooves.

[0014] Further preferred scheme: Fixed ends are arranged at both left and right ends of the clamping blocks, screw holes are opened on the surfaces of the fixed ends, and grooves are opened at equal distances on the inner side surfaces of the clamping blocks. The grooves are arranged in a semi-circular shape and are adapted to the outer walls of the test tubes.

[0015] Beneficial effects:

[0016] 1. By being provided with a motor, a fixing frame, and a hydraulic rod, the motor drives the fixing frame to rotate, thereby enabling the precise adjustment of the positions of the water storage tank, the first protective shell, and the second protective shell below the fixing frame, making them accurately correspond to the test tubes to be cleaned in sequence. The fixing frame provides a stable installation foundation for various cleaning and processing components, ensuring the stability of their relative positions during operation. The telescopic function of the hydraulic rod realizes the up and down movement of the components below. When it is necessary to perform flushing, cleaning, or water absorption operations on the test tubes, the hydraulic rod extends to insert the corresponding components (such as a spray head, a cleaning roller, a water absorption roller) into the test tubes. After the operation is completed, the hydraulic rod contracts to withdraw the components from the test tubes. This coordinated operation makes the cleaning process efficient and precise, capable of meeting the operation requirements of different links, and improving the flexibility and practicality of the cleaning device;

[0017] 2. By being provided with a spray head, a cleaning roller, and a water absorption roller, the spray head is used to spray cleaning liquid or clean water into the test tubes. At the beginning of the cleaning, the spray head sprays a liquid containing detergent to dissolve the stains in the test tubes. The cleaning roller physically scrapes and brushes the inner wall of the test tubes through the scraping layer on its surface. After the cleaning liquid wets the inner wall of the test tubes, the cleaning roller rotates under the drive of the servo motor. By using the contact and friction between the scraping layer and the inner wall of the test tubes, stubborn stains and attachments are removed to achieve deep cleaning of the inner wall of the test tubes. After the cleaning is completed, the spray head sprays clean water again to rinse off the detergent and stains. The water absorption roller plays a role after the cleaning and rinsing steps. The water absorption roller rotates into the test tubes under the drive of the servo motor and quickly absorbs the remaining water in the test tubes through its good water absorption performance, ensuring the dryness inside the test tubes and achieving a comprehensive and effective cleaning of the test tubes;

[0018] 3. By being provided with a chute, a clamping block, a fixed end, and a groove, the chute provides a track for the sliding of the clamping block, enabling the clamping block to move flexibly on the test tube rack. The clamping block is matched with the chute through the slider at the bottom and can adjust its position according to the diameter of the test tubes. The screw holes on the fixed end are used to insert bolts or screws. When the clamping block is adjusted to the appropriate position and fits the outer wall of the test tube, the bolts or screws are passed through the screw holes to tightly fix the two clamping blocks together, thereby realizing the stable clamping of the test tubes. The semi-circular design of the groove is adapted to the shape of the outer wall of the test tubes. When the clamping block fixes the test tubes, the groove can closely fit the outer wall of the test tubes, increasing the contact area, improving the stability and reliability of the clamping, and at the same time reducing the damage to the outer wall of the test tubes;

[0019] 4. In summary, the cleaning device for laboratory test tubes is provided with structures such as a fixing frame, a spray head, a cleaning roller, a water absorption roller and a test tube rack. Driven by a motor, the fixing frame can rotate flexibly, accurately moving the spray head, the cleaning roller and the water absorption roller above the test tubes in sequence, and realizing the precise docking of the components with the test tubes in cooperation with the telescopic movement of the hydraulic rod. The spray head is responsible for spraying cleaning liquid and clear water, providing the necessary liquid support for cleaning and rinsing. The cleaning roller uses the scraping layer on its surface to deeply clean the inner wall of the test tube and remove stubborn stains. The water absorption roller quickly sucks out the residual water in the test tube after cleaning to ensure the dryness inside the test tube. At the same time, structures such as the chute, clamping block, fixed end and groove on the test tube rack can firmly hold test tubes of different specifications, avoiding shaking or falling during the cleaning process, improving the stability and safety of the cleaning operation, greatly enhancing the efficiency and quality of laboratory test tube cleaning, reducing the workload of experimental personnel, and also eliminating the need for experimental personnel to tightly hold the test tubes during cleaning and drying, providing a strong guarantee for the smooth progress of the experiment. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0021] Figure 2 It is a schematic diagram of the rotating frame structure of the present utility model.

[0022] Figure 3 It is a schematic diagram of the flushing module structure of the present utility model.

[0023] Figure 4 It is a schematic diagram of the cleaning module structure of the present utility model.

[0024] Figure 5 It is a schematic diagram of the water absorption module structure of the present utility model.

[0025] Figure 6 It is a schematic diagram of the test tube rack module structure of the present utility model

[0026] Figure 7 It is a schematic diagram of the clamping module structure of the present utility model

[0027] Figures 1-7 In the figure: 1. Outer shell; 101. Workbench; 102. Working groove; 103. Motor; 2. Fixing frame; 201. Hydraulic rod; 3. Water storage tank; 301. Water storage pipe; 302. Spray head; 303. Valve; 304. Water inlet hole; 4. First protective shell; 401. Cleaning roller; 402. Servo motor; 5. Second protective shell; 501. Water absorption roller; 6. Test tube rack; 601. Chute; 602. Clamping block; 603. Slide block; 604. Fixed end; 605. Screw hole; 606. Groove. Detailed Embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying Figures 1-7 drawings in the embodiments of the present utility model.

[0029] Please refer to Figures 1-7 , in the embodiments of the present utility model, a cleaning device for laboratory test tubes includes: a housing 1, a fixing frame 2 is movably installed above the interior of the housing 1, water storage tanks 3 are fixedly installed on the front and left sides below the fixing frame 2, a protective shell one 4 and a protective shell two 5 are respectively fixedly installed on the right and back sides below the fixing frame 2, a test tube rack 6 is fixedly installed below the interior of the housing 1, a hydraulic rod 201 is fixedly installed around the bottom of the fixing frame 2, and the other ends of the hydraulic rod 201 are respectively fixedly installed with the water storage tank 3, the protective shell one 4 and the protective shell two 5. The protective shell one 4 and the protective shell two 5 have the same structure, and servo motors 402 are fixedly installed at equal distances inside. The test tube rack 6 is arranged directly below the water storage tank 3. A workbench 101 is fixedly installed at the bottom of the interior of the housing 1, a work groove 102 is opened at the upper end of the workbench 101, and the test tube rack 6 is fixedly installed inside the test tube rack 6. A motor 103 is fixedly installed at the upper end of the housing 1, and the output end of the motor 103 passes through the upper end of the housing 1 and is fixedly connected to the upper end of the fixing frame 2. The motor 103 is fixedly installed at the upper end of the housing 1, the output end of the motor 103 passes through the upper end of the housing 1, and a fixing frame 2 is fixedly installed at the bottom of the output end. The fixing frame 2 can rotate through the motor 103 to change the current working state. The fixing frame 2 provides an installation basis for the components below, such as the water storage tank 3, the protective shell one 4, and the protective shell two 5, and moves up and down through the hydraulic rod 201, thereby adjusting the relative position between the components below and the test tubes in the test tube rack 6. The water storage tank 3 is located on the front and left sides below the fixing frame 2. The water storage tank 3 on the front is used to store the liquid required for cleaning the test tubes, such as cleaning agents and other washing liquids, so as to dissolve the stains in the test tubes and better perform flushing and scouring. After the cleaning agent and other liquids are dropped into the test tubes, through the rotation of the motor 103, the cleaning roller 401 is located directly above the test tubes. Through the downward output of the hydraulic rod 201, the cleaning roller 401 extends into the test tubes. The cleaning roller 401 is driven by the servo motor 402 to clean the interior of the test tubes. After the cleaning is completed, the cleaning roller 401 is withdrawn. The motor 102 rotates in the reverse direction, so that the water storage tank 3 originally located on the left side of the fixing frame 2 rotates above the test tube 3. The water storage tank 3 is moved downward through the hydraulic rod 201, and clear water is sprayed through the spray head 302 to wash the test tubes and wash away the detergent and sewage. Finally, through the rotation of the motor 103, the protective shell two 5 is located above the test tubes to absorb the remaining water droplets inside the test tubes and keep the interior of the test tubes dry. During the whole process, the test tube rack 6 is fixedly installed in the work groove 102, and the test tube rack 6 can fix the test tubes to prevent the test tubes from shaking during the cleaning process. Moreover, both the sewage and the clear water can be directly poured into the work groove 102 and discharged out through the work groove 102.

[0030] In the embodiment of the present utility model, water storage pipes 301 are fixedly installed at the bottom of the water storage tank 3, spray heads 302 are fixedly installed at the bottom of the water storage pipes 301, valves 303 are fixedly installed at the upper ends of the water storage tanks 3, and water inlet holes 304 are formed at one ends of the water storage tanks 3. The mixed water of clean water and detergent is poured into the front water storage tank 3 through the water inlet holes 304. By opening the valves 303, these liquids flow into the interior of the water storage pipes 301, and the liquids flowing out of the water storage pipes 301 are sprayed out in a specific manner through the spray heads 302 to achieve the flushing of the test tubes. When strong flushing of the test tubes is required, the valves 303 can be opened to a greater extent to allow more liquid to flow into the interior of the water storage pipes 301 and be quickly sprayed out through the spray heads 302; while in the case of only mild flushing, the valves 303 can be appropriately adjusted smaller. The water inlet holes 304 can be externally connected to water pipes to facilitate the rapid replenishment of the cleaning liquid and ensure that there is always sufficient liquid supply in the water storage tank 3. After the test tubes are cleaned and scrubbed, distilled water is poured into the left water storage tank 3, and the test tubes are flushed through the spray heads 302 to wash away the residues of the cleaning agent and sewage, ensuring the cleanliness of the test tubes.

[0031] In the embodiment of the present utility model, cleaning rollers 401 are rotatably installed at equal intervals at the bottom of the protective shell 1. The cleaning rollers 401 are fixedly connected to the output ends of the servo motors 402. A scraping layer is provided on the outer surface of the cleaning rollers 401. The scraping layer is any one of a silica gel layer, a rubber layer, and a polyester fiber layer. After the interior of the test tube is sprayed with the cleaning liquid by the spray head 302, the cleaning rollers 401 are inserted into the interior of the test tube, and the cleaning rollers 401 are rotated inside the test tube by the rotation of the servo motors 402 to scrape the inner wall of the test tube. Using materials such as a silica gel layer, a rubber layer, or a polyester fiber layer can enhance the cleaning effect on the inner wall of the test tube while reducing damage to the inner wall of the test tube. If the scraping layer is selected as a silica gel layer, due to the softness and elasticity of silica gel, it can adapt to different tube diameters and shapes when cleaning the test tube, effectively removing stains without easily scratching the inner wall of the test tube; if a rubber layer is selected, its good wear resistance and elasticity can ensure a good cleaning effect after multiple uses; while the polyester fiber layer has good corrosion resistance and wear resistance and is suitable for some cleaning environments that may be corrosive.

[0032] In the embodiment of the present utility model, water absorption rollers 501 are fixedly installed at equal distances at the bottom of the second protective shell 5. The water absorption rollers 501 are fixedly connected to the output end of the servo motor 402 inside the second protective shell 5. After the test tube is cleaned by the cleaning roller 401 and flushed by the distilled water in the water storage tank 3, the second protective shell 5 is rotated above the test tube, and the servo motor 402 drives the water absorption roller 501 to rotate into the test tube to absorb water by rotation to ensure that the inside of the test tube is dry. The surface of the water absorption roller 501 can be any one of sponge, silica gel sponge, wool fiber and PVA material. When cleaning test tubes for some ordinary chemical experiments, a water absorption roller 501 with a sponge surface can be selected. The water absorption roller 501 made of sponge material has good water absorption and softness and can quickly absorb a large amount of water; in a laboratory environment with frequent use, the water absorption roller 501 made of silica gel sponge material can maintain good water absorption performance and service life, can adapt to the inside of test tubes of different shapes, and has good durability; when performing water absorption treatment on special material test tubes with relatively fragile inner walls, the wool fiber has excellent hygroscopicity and is relatively soft and not easy to damage the inner wall of the test tube; when a large number of test tubes need to be efficiently absorbed and dried, the PVA material has excellent water absorption ability and the characteristic of quickly releasing water. The water absorption roller 501 made of PVA material can play its advantages and quickly complete the water absorption work. The water absorption rollers 501 made of different materials have their respective applicable scenarios and advantages in the laboratory test tube cleaning device, and can be selected according to specific experimental requirements and test tube characteristics.

[0033] In the embodiment of the utility model, sliding grooves 601 are provided on the left and right sides of the upper end of the test tube rack 6, clamping blocks 602 are slidably installed on the front and rear sides of the upper end of the test tube rack 6, sliding blocks 603 are fixedly installed on the left and right sides of the bottom of the clamping blocks 602, the sliding blocks 603 are adapted to the sliding grooves 601, fixing ends 604 are arranged at both ends of the clamping blocks 602, screw holes 605 are provided on the surfaces of the fixing ends 604, semi-circular grooves 606 are equidistantly arranged on the inner side surfaces of the clamping blocks 602, the grooves 606 are semi-circularly arranged and are adapted to the outer wall of the test tube. Before cleaning the test tube, the test tube usually needs to be fixed. First, insert the test tube into the inside of the test tube rack 6. Insertion holes for the test tube to be inserted are provided on the surface of the test tube rack 6. When the test tube is inserted into the inside of the test tube rack 6, the sliding grooves 601 cooperate with the sliding blocks 603, so that the clamping blocks 602 can slide on the test tube rack 6, thereby adjusting the positions of the clamping blocks 602 to clamp and fix the test tubes placed on the test tube rack 6. The semi-circular arrangement of the grooves 606 is adapted to the outer wall of the test tube, which can better fit the test tube, increase the clamping stability and the protection of the test tube. When the clamping blocks 602 are attached to the outer wall of the test tube, the two clamping blocks 602 are fixed by bolts passing through the screw holes 605, so that the clamping blocks 602 stably clamp the test tube, preventing the test tube from shaking or falling during the cleaning process. When a batch of test tubes with smaller diameters need to be cleaned, the clamping blocks 602 can be slid to be closer, and after being fixed by bolts, the semi-circular grooves 606 can tightly clamp these small test tubes; for test tubes with larger diameters that do not exceed the diameter of the insertion holes inside the test tube rack 6, the clamping blocks 602 can be slid to a wider position and fixed to meet the clamping requirements of the large-diameter test tubes. This adjustable design improves the compatibility and fixing effect of the test tube rack 6 for test tubes of different specifications.

[0034] Working principle: First, place the test tube to be cleaned into the test tube rack 6, adjust the position through the sliding clamp block 602 to make it fit the outer wall of the test tube, and then pass a bolt through the screw hole 605 to fix the clamp block 602 to ensure stable clamping of the test tube and prevent it from shaking or falling during the cleaning process. Then, pour the mixed water of clean water and detergent into the front water storage tank 3 through the water inlet hole 304, open the valve 303 to let the mixed liquid flow into the water storage pipe 301, and spray it into the test tube through the nozzle 302 to dissolve the stains in the test tube for subsequent cleaning. Next, the motor 103 rotates to place the cleaning roller 401 directly above the test tube, the hydraulic rod 201 outputs downward to extend the cleaning roller 401 into the test tube, and the servo motor 402 drives the cleaning roller 401 to rotate. The inner wall of the test tube is scraped and cleaned using the scraping layer (such as a silicone layer, rubber layer, or polyester fiber layer) on its outer surface to enhance the cleaning effect and reduce damage to the inner wall. After the cleaning is completed, the cleaning roller 401 is withdrawn, the motor 103 rotates in the reverse direction to rotate the water storage tank 3 originally located on the left side of the fixed frame 2 above the test tube, and the hydraulic rod 201 moves the water storage tank 3 downward. The nozzle 302 sprays distilled water to rinse the test tube and wash away the detergent and sewage. Finally, the motor 103 rotates again to place the second protective shell 5 above the test tube, and the servo motor 402, in combination with the hydraulic rod 102, drives the water absorption roller 501 to rotate into the test tube to absorb and dry the water, keeping the inside of the test tube dry. During the entire cleaning process, the generated sewage and clean water can be directly poured into the working groove 102 and discharged outward.

Claims

1. A cleaning device for laboratory test tubes, comprising: A housing (1), a fixing frame (2) is movably installed above the interior of the housing (1), water storage tanks (3) are fixedly installed on the front and left sides below the fixing frame (2), a first protective shell (4) and a second protective shell (5) are fixedly installed on the right and back sides below the fixing frame (2) respectively, and a test tube rack (6) is fixedly installed below the interior of the housing (1). It is characterized in that: hydraulic rods (201) are fixedly installed around the bottom of the fixing frame (2), and the other ends of the hydraulic rods (201) are fixedly installed with the water storage tanks (3), the first protective shell (4) and the second protective shell (5) respectively. The first protective shell (4) and the second protective shell (5) have the same structure, and servo motors (402) are fixedly installed at equal intervals inside. The test tube rack (6) is arranged directly below the water storage tank (3).

2. The cleaning device for laboratory test tubes according to claim 1, wherein: A workbench (101) is fixedly installed at the bottom inside the housing (1), a work groove (102) is opened at the upper end of the workbench (101), the test tube rack (6) is fixedly installed inside the test tube rack (6), and a motor (103) is fixedly installed at the upper end of the housing (1). The output end of the motor (103) passes through the upper end of the housing (1) and is fixedly connected to the upper end of the fixing frame (2).

3. The cleaning device for laboratory test tubes according to claim 1, characterized in that: Water storage pipes (301) are fixedly installed at the bottoms of the water storage tanks (3), spray heads (302) are fixedly installed at the bottoms of the water storage pipes (301), valves (303) are fixedly installed at the upper ends of the water storage tanks (3), and water inlet holes (304) are opened at one ends of the water storage tanks (3).

4. A cleaning device for laboratory test tubes according to claim 1, characterized in that: Cleaning rollers (401) are rotatably installed at equal intervals at the bottom of the first protective shell (4), the cleaning rollers (401) are fixedly connected to the output ends of the servo motors (402), and a scraping layer is arranged on the outer surface of the cleaning rollers (401). The scraping layer is any one of a silica gel layer, a rubber layer, and a polyester fiber layer.

5. The cleaning device for laboratory test tubes according to claim 1, characterized in that: Absorbing rollers (501) are fixedly installed at equal intervals at the bottom of the second protective shell (5), and the absorbing rollers (501) are fixedly connected to the output ends of the servo motors (402) inside the second protective shell (5).

6. The cleaning device for laboratory test tubes according to claim 1, wherein: Chute grooves (601) are opened on the left and right sides at the upper end of the test tube rack (6), clamping blocks (602) are slidably installed on the front and rear sides at the upper end of the test tube rack (6), sliding blocks (603) are fixedly installed on the left and right sides at the bottom of the clamping blocks (602), and the sliding blocks (603) are adapted to the chute grooves (601).

7. The cleaning device for laboratory test tubes according to claim 6, characterized in that: Fixed ends (604) are arranged at both ends of the clamping blocks (602), screw holes (605) are opened on the surfaces of the fixed ends (604), and grooves (606) are opened at equal intervals on the inner side surfaces of the clamping blocks (602). The grooves (606) are arranged in a semi-circular shape and are adapted to the outer walls of the test tubes.

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