Test tube cleaning device for experiment teaching

Abstract

The invention discloses a test tube cleaning device for experiment teaching, and relates to the technical field of container inner wall cleaning. The cleaning device comprises a cleaning box, one side of the cleaning box communicates with a four-way conveying valve, a placing mechanism is arranged in the cleaning box, and the placing mechanism comprises a placing plate fixedly connected to the interior of the cleaning box. The test tubes are stably fixed through cooperative movement of the placing mechanism, when the test tubes are vertically placed on the placing plate, a supporting plate and a cushion block jointly limit the bottoms of the test tubes to prevent transverse deviation, then a screw of the pushing assembly rotates, a pressing plate is driven to tightly buckle the arc portions of the test tubes through a downward pressing groove, and vertical bidirectional clamping is formed; and through cooperation of the limiting plate and the limiting block, rotation of the threaded sleeve is further avoided, vertical movement of the pressing plate is ensured, the problem that the test tubes shake in a traditional device is effectively solved, the test tubes are kept stable during high-speed cleaning, cleaning dead corners or test tube damage caused by displacement are avoided, and the cleaning uniformity and safety are effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of container inner wall cleaning, and in particular relates to a test tube cleaning device for experimental teaching. Background Art

[0002] In experimental teaching, test tubes are commonly used experimental equipment, used to hold, mix or react liquids, solids and other substances. Since the experimental process may involve chemical reagents, precipitates or residues, the test tubes need to be cleaned in time after use to avoid cross-contamination or affect subsequent experimental results. The test tube cleaning device is a device specially used for automatic cleaning of test tubes. Although the traditional manual cleaning method is simple, it has many shortcomings, especially after large-scale experiments. Manual cleaning efficiency is low, and it is difficult to ensure the cleaning quality of each test tube. For this reason, a variety of test tube cleaning devices have appeared on the market, aiming to improve cleaning efficiency and reduce manual operations.

[0003] The test tube cleaning devices in the prior art still have some problems during use, such as: the test tubes are not firmly fixed, and the test tubes are prone to shaking or shifting during the cleaning process, resulting in the cleaning brush being unable to fully contact the inner wall of the test tube, uneven cleaning effect, and poor mechanical stability. When some cleaning devices are rotated at high speed for cleaning, the test tube fixing devices are prone to loosening, and even cause the test tubes to fall off or break, posing a safety hazard.

[0004] To this end, we provide a test tube cleaning device for experimental teaching to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a test tube cleaning device for experimental teaching. Through the cooperation of a placement mechanism, a cleaning mechanism and a driving mechanism, the present invention solves the problem in the test tube cleaning device in the prior art that the test tube is not firmly fixed and is prone to shaking or shifting during the cleaning process.

[0006] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0007] The present invention is a test tube cleaning device for experimental teaching, comprising a cleaning box, one side of the cleaning box is connected to a four-way delivery valve, a placing mechanism is arranged inside the cleaning box, the placing mechanism comprises a placing plate fixedly connected to the inside of the cleaning box, a support plate fixedly connected to the top of the placing plate, a pushing assembly fixedly connected to the top of the placing plate, a pushing plate arranged on the surface of the pushing assembly, and a pressure plate fixedly connected to the bottom of the pushing plate, a cleaning mechanism is arranged on the top of the placing plate, the cleaning mechanism comprises a supporting box fixedly connected to the top of the placing plate, a cleaning rod movably connected to the inside of the supporting box through a bearing, a cleaning brush fixedly connected to the top and surface of the cleaning rod, and a spraying assembly arranged inside the placing plate, a driving mechanism is arranged inside the cleaning box, the driving mechanism comprises a motor fixedly connected to the inside of the cleaning box, a first gear assembly arranged at the bottom of the motor, and a second gear assembly arranged inside the placing plate.

[0008] The present invention is further configured such that a pad is fixedly connected to the top of the placement plate, and the support plates are arranged in a group of four on the top of the placement plate, and the support plates are designed to be separated.

[0009] The present invention is further configured such that the pushing assembly includes a pushing box fixedly connected to the top of the placing plate, a screw movably connected to the inside of the pushing box through a bearing, a screw sleeve threadedly connected to the surface of the screw, a connecting rod fixedly connected to one side of the screw sleeve, the connecting rod is fixedly connected to the pushing plate away from the side of the screw sleeve, and a pushing groove adapted to the connecting rod is provided on one side of the pushing box.

[0010] The present invention is further configured such that a limiting plate is provided on the top of the placement plate, a limiting groove is provided inside the limiting plate, and a limiting block is slidably connected inside the limiting groove.

[0011] The present invention is further configured such that a pressing groove adapted to the test tube is provided at the bottom of the pressing plate, and a spray hole is provided on the surface of the cleaning rod.

[0012] The present invention is further configured such that the spray assembly includes a spray pipe fixedly connected to the inside of the placement plate, a delivery pipe connected to the top of the spray pipe, and a rotary joint connected to the top of the delivery pipe, the top of the rotary joint is connected to the bottom of the cleaning rod, and one end of the four-way delivery valve is connected to the spray pipe.

[0013] The present invention is further configured such that the first gear assembly includes a driving gear fixedly connected to the output end of the motor, a first driven gear meshed with the surface of the driving gear, and a second driven gear meshed with the driving gear.

[0014] The present invention is further configured such that an electromagnetic clutch assembly is provided at the bottom of the first gear assembly, and the electromagnetic clutch assembly includes a first electromagnetic clutch provided on one side of the bottom of the first gear assembly, and a second electromagnetic clutch provided on the other side of the bottom of the second gear assembly.

[0015] The present invention is further configured such that a rotating box is fixedly connected to the top of the placement plate, and the second gear assembly includes a rotating rod movably connected to the inside of the rotating box through a bearing, a rotating gear fixedly connected to the bottom of the rotating rod, a transmission gear fixedly connected to the surface of the cleaning rod, and an auxiliary gear meshing with the rotating gear and the transmission gear, and the auxiliary gear is movably connected to the inside of the placement plate through a bearing.

[0016] The present invention is further configured such that the cleaning rods are divided into two groups, the two groups of cleaning rods are designed as concentric circles, the number of outer cleaning rods is eighteen, and the number of inner cleaning rods is eight.

[0017] The present invention has the following beneficial effects.

[0018] 1. The present invention realizes the stable fixation of the test tube through the coordinated movement of the placement mechanism. When the test tube is placed vertically on the placement plate, the support plate and the pad block jointly limit the bottom of the test tube to prevent lateral deviation, and then the screw of the push assembly is rotated, driving the pressure plate to buckle the arc of the test tube through the downward pressing groove, forming an upper and lower two-way clamping. The cooperation between the limit plate and the limit block further prevents the screw sleeve from rotating, ensuring the vertical movement of the pressure plate, effectively solving the problem of test tube shaking in traditional devices, so that the test tube remains stable during high-speed cleaning, avoiding cleaning dead corners or test tube damage caused by displacement, and effectively improving cleaning uniformity and safety.

[0019] 2. The present invention realizes automatic cleaning through the power distribution of the driving mechanism. The motor drives the cleaning rod to rotate through the first gear assembly, and the cleaning brush rubs the inner wall of the test tube. At the same time, the spray assembly delivers cleaning liquid, steam or hot air to the spray hole through the rotary joint. The four-way delivery valve realizes the switching of three modes. This movement process effectively combines mechanical scrubbing, chemical flushing and physical disinfection, effectively removes stubborn stains, and avoids secondary pollution caused by manual intervention. It realizes the automation of the whole process of cleaning-disinfection-drying, greatly improving the experimental efficiency.

[0020] 3. The present invention adapts to different test tube specifications through two sets of cleaning rods with concentric circle designs and an adjustable fixed structure. The outer cleaning rod cleans small-diameter test tubes, and the inner cleaning rod is for large-diameter test tubes. The downward pressing groove of the pressure plate and the separation design of the support plate are further compatible with test tubes of different sizes. The driving mechanism dynamically distributes power to the cleaning rod or the pressure plate through the cooperation of the first gear assembly, the second gear assembly and the electromagnetic clutch assembly to ensure that all components work together. This movement process breaks through the limitations of the single adaptation of traditional devices. Through the adaptive adjustment of the mechanical structure, the cleaning of test tubes of different diameters is realized, which not only avoids the tedious operation of replacing accessories, but also ensures the consistency of the cleaning effect of various test tubes, significantly expanding the practical scope of the device.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0023] Figure 1 This is a three-dimensional diagram of a test tube cleaning device used in experimental teaching.

[0024] Figure 2 This is a diagram of the downward pressure state of the pressure plate in a test tube cleaning device used in experimental teaching.

[0025] Figure 3 This is a cross-sectional view of a test tube cleaning device for experimental teaching after the test tube is placed.

[0026] Figure 4 This is a partial front view of the cleaning mechanism in a test tube cleaning device for experimental teaching.

[0027] Figure 5 This is a bottom view of the pressure plate in a test tube cleaning device used in experimental teaching.

[0028] Figure 6 This is a structural diagram of the spray assembly in a test tube cleaning device used in experimental teaching.

[0029] Figure 7 This is a structural diagram of the second gear assembly in a test tube cleaning device for experimental teaching.

[0030] Figure 8 This is a structural diagram of the first gear assembly and the electromagnetic clutch assembly in a test tube cleaning device for experimental teaching.

[0031] Figure 9 This is a front view of the limiting plate and limiting block in a test tube cleaning device for experimental teaching.

[0032] In the accompanying drawings: 1. Cleaning box; 2. Four-way delivery valve; 3. Placement mechanism; 31. Placement plate; 32. Support plate; 33. Pushing assembly; 331. Pushing box; 332. Screw; 333. Screw sleeve; 34. Pushing plate; 35. Pressing plate; 4. Cleaning mechanism; 41. Support box; 42. Cleaning rod; 43. Cleaning brush; 44. Spraying assembly; 441. Spraying pipe; 442. Delivery pipe; 443. Rotary joint; 5. Driving mechanism; 51. Motor; 5 2. First gear assembly; 521. Driving gear; 522. First driven gear; 523. Second driven gear; 53. Second gear assembly; 531. Rotating rod; 532. Rotating gear; 533. Transmission gear; 534. Auxiliary gear; 6. Pad; 7. Limit plate; 8. Limit block; 9. Press-down groove; 10. Spray hole; 11. Electromagnetic clutch assembly; 111. First electromagnetic clutch; 112. Second electromagnetic clutch; 12. Rotating box. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1

[0035] See also Figures 1-9 The present invention is a test tube cleaning device for experimental teaching, comprising a cleaning box 1, one side of the cleaning box 1 is connected to a four-way delivery valve 2, a placing mechanism 3 is arranged inside the cleaning box 1, the placing mechanism 3 includes a placing plate 31 fixedly connected to the inside of the cleaning box 1, a support plate 32 fixedly connected to the top of the placing plate 31, a pushing component 33 fixedly connected to the top of the placing plate 31, a pushing plate 34 arranged on the surface of the pushing component 33, and a pressing plate 35 fixedly connected to the bottom of the pushing plate 34, a cleaning mechanism 4 is arranged on the top of the placing plate 31, the cleaning mechanism 4 includes a supporting box 41 fixedly connected to the top of the placing plate 31, a cleaning rod 42 movably connected to the inside of the supporting box 41 through a bearing, a cleaning brush 43 fixedly connected to the top and surface of the cleaning rod 42, and a spraying component 44 arranged inside the placing plate 31, a driving mechanism 5 is arranged inside the cleaning box 1, the driving mechanism 5 includes a motor 51 fixedly connected to the inside of the cleaning box 1, a first gear assembly 52 arranged at the bottom of the motor 51, and a second gear assembly 53 arranged inside the placing plate 31.

[0036] Specifically: through the setting of the placement mechanism 3, it is used to fix and position the test tube to ensure that the test tube remains stable during the cleaning process. The test tube is placed vertically on the pad 6 on the top of the placement plate 31, and the bottom is supported and limited by the support plate 32 to prevent lateral deviation. The screw 332 in the pushing assembly 33 rotates, driving the screw sleeve 333 and the connecting rod to move, so that the pushing plate 34 is pressed down, and the pressing plate 35 buckles the arc part of the test tube through the pressing groove 9 to form a two-way fixation in the upper and lower directions. The setting of the cleaning mechanism 4 is responsible for brushing and rinsing the inner wall of the test tube. The cleaning rod 42 rotates under the drive of the driving mechanism 5, and the cleaning brush 43 fixed on its surface rotates accordingly, rubbing the inner wall of the test tube to remove stains, and the spraying assembly 44 sprays the cleaning rod through the rotary joint 443 42 delivers cleaning liquid, which is sprayed onto the inner wall of the test tube through the nozzle 10. Combined with brushing, the cleaning effect is enhanced. The four-way delivery valve 2 switches the cleaning liquid, steam or drying gas to achieve integrated flushing, disinfection and drying. The driving mechanism 5 is set to provide power and distribute transmission for the device. After the motor 51 is started, the driving gear 521 drives the first driven gear 522 and the second driven gear 523 to rotate. The electromagnetic clutch assembly selectively connects the first driven gear 522 or the second driven gear 523 to drive the cleaning mechanism 4 to rotate or the placement mechanism 3 to press, respectively. The second gear assembly 53 transmits power to the cleaning rod 42 through the rotating rod 531 and the auxiliary gear 534, etc., to ensure that multiple groups of cleaning rods 42 operate synchronously.

[0037] Example 2

[0038] See also Figures 1-9 When the cam 331 is in the unlock state, the cam 332 is locked and the lock 333 is unlocked, so the cam 332 can be unlocked and unlocked, so the cam 332 can be unlocked.

[0039] Specifically: through the setting of the pad 6, when placing the test tube, the test tube is padded upward to form a gap between the test tube and the placement plate 31, so that the waste water generated by cleaning can be discharged outward; through the setting of the support plate 32, when placing the test tube, the support plate 32 contacts the inner wall of the test tube, limiting the bottom of the test tube; through the setting of the pushing component 33, it is used to drive the pushing plate 34 to move up and down; through the setting of the limiting plate 7 and the limiting block 8, it is used to limit the screw sleeve 333 to prevent the screw sleeve 333 from rotating when moving; through the setting of the pressing groove 9, during the pressing process of the pressing plate 35, the top of the test tube enters the inside of the pressing groove 9, further improving the limiting effect.

[0040] Example 3

[0041] See also Figures 1-9 On the basis of Examples 1 and 2, the spray assembly 44 includes a spray pipe 441 fixedly connected to the inside of the placement plate 31, a delivery pipe 442 connected to the top of the spray pipe 441, and a rotary joint 443 connected to the top of the delivery pipe 442, the top of the rotary joint 443 is connected to the bottom of the cleaning rod 42, one end of the four-way delivery valve 2 is connected to the spray pipe 441, and the other end of the four-way delivery valve 2 is respectively connected to the cleaning liquid pipe, the steam pipe and the drying pipe, and the cleaning liquid pipe, the steam pipe and the drying pipe surface are all connected with automatic control valves, the first gear assembly 52 includes a driving gear 521 fixedly connected to the output end of the motor 51, a first driven gear 522 engaged with the surface of the driving gear 521, and a second driven gear 523 engaged with the driving gear 521, an electromagnetic clutch assembly 11 is provided at the bottom of the first gear assembly 52, and the electromagnetic clutch assembly 11 includes a first electromagnetic clutch 111 provided on one side of the bottom of the first gear assembly 52, and a clutch provided at the bottom of the second gear assembly 53 The second electromagnetic clutch 112 on the other side of the part, the bottom of the first driven gear 522 is fixedly connected to the top of the first electromagnetic clutch 111, the top of the rotating rod 531 is fixedly connected to the bottom of the first electromagnetic clutch 111, the bottom of the second driven gear 523 is fixedly connected to the top of the second electromagnetic clutch 112, the top of the screw 332 is fixedly connected to the bottom of the second electromagnetic clutch 112, and the top of the placement plate 31 is fixedly connected to the rotating box 12. The second gear assembly 53 includes a rotating rod 531 movably connected to the inside of the rotating box 12 through a bearing, a rotating gear 532 fixedly connected to the bottom of the rotating rod 531, a transmission gear 533 fixedly connected to the surface of the cleaning rod 42, and an auxiliary gear 534 meshing with the rotating gear 532 and the transmission gear 533. The auxiliary gear 534 is movably connected to the inside of the placement plate 31 through a bearing. The cleaning rod 42 is divided into two groups. The two groups of cleaning rods 42 are concentric circle designs. The number of outer cleaning rods 42 is eighteen, and the number of inner cleaning rods 42 is eighteen.

[0042] Specifically: through the setting of the spray component 44, the cleaning liquid is continuously sprayed on the test tube to rinse the test tube during the rotation of the cleaning rod 42, and then steam is sprayed to disinfect the test tube. Finally, drying gas is sprayed to dry the test tube. Through the setting of the first gear component 52, the power of the motor 51 is transmitted to the rotating rod 531 and the screw 332. Through the setting of the electromagnetic clutch component 11, it is used to adjust the power output direction of the motor 51. Through the setting of the second gear component 53, it is used to drive the cleaning rod 42 to rotate. Through the setting of the two groups of cleaning rods 42, the outer cleaning rod 42 is used to clean the test tube with a smaller inner diameter, and the inner cleaning rod 42 is used to clean the test tube with a larger inner diameter.

[0043] The working principle of the present invention is as follows: when the test tube is placed vertically on the placement plate 31, the bottom of the test tube is supported and limited by the support plate 32 and the pad 6 to prevent lateral deviation. Subsequently, the motor 51 is started and drives the second driven gear 523 to rotate through the first gear assembly 52. ​​At this time, the second electromagnetic clutch 112 is attracted to transmit power to the screw 332. The screw 332 rotates to drive the screw sleeve 333 to move downward, and the pressure plate 35 is pushed downward by the connecting rod. The downward pressing groove 9 is used to tighten the arc of the test tube to form a stable clamping in both directions. The limit plate 7 and the limit block 8 cooperate to prevent the screw sleeve 333 from rotating, ensuring that the pressure plate 35 is pressed vertically downward.

[0044] The first electromagnetic clutch 111 is engaged, and the power of the motor 51 is transmitted to the second gear assembly 53 through the first driven gear 522, driving the rotating rod 531 to drive the cleaning rod 42 to rotate. The cleaning brush 43 rotates with the cleaning rod 42, rubbing the inner wall of the test tube to remove stains. At the same time, the four-way delivery valve 2 is switched to the cleaning liquid passage, and the spray assembly 44 delivers cleaning liquid to the cleaning rod 42 through the rotary joint 443, and the inner wall is sprayed through the spray hole 10. After cleaning is completed, it is switched to the steam passage for high-temperature disinfection.

[0045] The four-way delivery valve 2 is switched to the drying gas passage, and hot air is sprayed out through the spray assembly 44 to quickly dry the inner wall of the test tube. After completion, the second electromagnetic clutch 112 is re-engaged, driving the screw 332 to reverse, driving the pressure plate 35 to rise and reset, releasing the fixation of the test tube, and the cleaned test tube can be taken out.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A test tube cleaning device for experimental teaching, comprising a cleaning box (1), characterized in that: One side of the cleaning box (1) is connected to a four-way delivery valve (2); A placement mechanism (3) is provided inside the cleaning box (1), and the placement mechanism (3) comprises a placement plate (31) fixedly connected to the inside of the cleaning box (1), a support plate (32) fixedly connected to the top of the placement plate (31), a pushing assembly (33) fixedly connected to the top of the placement plate (31), a pushing plate (34) provided on the surface of the pushing assembly (33), and a pressing plate (35) fixedly connected to the bottom of the pushing plate (34); A cleaning mechanism (4) is provided on the top of the placement plate (31), and the cleaning mechanism (4) comprises a support box (41) fixedly connected to the top of the placement plate (31), a cleaning rod (42) movably connected to the inside of the support box (41) through a bearing, a cleaning brush (43) fixedly connected to the top and surface of the cleaning rod (42), and a spraying assembly (44) provided inside the placement plate (31); A driving mechanism (5) is provided inside the cleaning box (1), and the driving mechanism (5) comprises a motor (51) fixedly connected to the inside of the cleaning box (1), a first gear assembly (52) provided at the bottom of the motor (51), and a second gear assembly (53) provided inside the placement plate (31).

2. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: A cushion block (6) is fixedly connected to the top of the placement plate (31), and four support plates (32) are arranged in a group on the top of the placement plate (31), and the support plates (32) are designed to be separated.

3. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: The pushing assembly (33) includes a pushing box (331) fixedly connected to the top of the placement plate (31), a screw (332) movably connected to the inside of the pushing box (331) through a bearing, a screw sleeve (333) threadedly connected to the surface of the screw (332), a connecting rod fixedly connected to one side of the screw sleeve (333), the connecting rod being fixedly connected to the pushing plate (34) on a side away from the screw sleeve (333), and a pushing groove adapted to the connecting rod being provided on one side of the pushing box (331).

4. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: A limiting plate (7) is provided on the top of the placement plate (31), a limiting groove is provided inside the limiting plate (7), and a limiting block (8) is slidably connected inside the limiting groove.

5. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: The bottom of the pressing plate (35) is provided with a pressing groove (9) adapted to the test tube, and the surface of the cleaning rod (42) is provided with a spray hole (10).

6. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: The spray assembly (44) includes a spray pipe (441) fixedly connected to the inside of the placement plate (31), a delivery pipe (442) connected to the top of the spray pipe (441), and a rotary joint (443) connected to the top of the delivery pipe (442), the top of the rotary joint (443) is connected to the bottom of the cleaning rod (42), and one end of the four-way delivery valve (2) is connected to the spray pipe (441).

7. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: The first gear assembly (52) includes a driving gear (521) fixedly connected to the output end of the motor (51), a first driven gear (522) meshed with the surface of the driving gear (521), and a second driven gear (523) meshed with the driving gear (521).

8. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: An electromagnetic clutch assembly (11) is provided at the bottom of the first gear assembly (52), and the electromagnetic clutch assembly (11) comprises a first electromagnetic clutch (111) provided on one side of the bottom of the first gear assembly (52), and a second electromagnetic clutch (112) provided on the other side of the bottom of the second gear assembly (53).

9. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: The top of the placement plate (31) is fixedly connected to a rotating box (12); the second gear assembly (53) comprises a rotating rod (531) movably connected to the inside of the rotating box (12) through a bearing, a rotating gear (532) fixedly connected to the bottom of the rotating rod (531), a transmission gear (533) fixedly connected to the surface of the cleaning rod (42), and an auxiliary gear (534) meshing with the rotating gear (532) and the transmission gear (533); the auxiliary gear (534) is movably connected to the inside of the placement plate (31) through a bearing.

10. The test tube cleaning device for experimental teaching according to claim 1, characterized in that: The cleaning rods (42) are divided into two groups. The two groups of cleaning rods (42) are designed as concentric circles. The number of the outer cleaning rods (42) is eighteen, and the number of the inner cleaning rods (42) is eight.

Images