A tablet friability tester and moisture barrier

By improving the transmission system and cleaning mechanism of the tablet friability tester, the problems of unstable drum speed and incomplete cleaning were solved, thereby improving the accuracy of the test and the service life of the equipment.

CN224399170UActive Publication Date: 2026-06-23TIANJIN JINMEN RUIKE TECHNOLOGY DEVELOPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN JINMEN RUIKE TECHNOLOGY DEVELOPMENT CO LTD
Filing Date
2025-04-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The transmission structure of existing tablet friability testers is prone to loosening and wear after prolonged use, resulting in unstable drum speed and affecting the accuracy of test results.

Method used

The transmission system, consisting of a support frame, motor, drive shaft, gears, and chain, combined with the cleaning mechanism, ensures stable rotation and cleanliness of the drum, including a bevel gear driven by a motor and a scraper cleaning structure.

Benefits of technology

This achieves stable drum rotation and efficient cleaning, ensuring the accuracy of test results and the long-term stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224399170U_ABST
    Figure CN224399170U_ABST
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Abstract

The utility model relates to tablet testing technical field discloses a kind of tablet friability tester and moisture-proof device, including support frame, the rear side bottom of support frame is fixedly connected with motor one, the output end of motor one is fixedly connected with driving shaft one, the outer wall front side of driving shaft one is fixedly connected with circular gear one, the outer wall of circular gear one is engaged with chain, the top of chain is engaged with circular gear two, the middle part of circular gear two is fixedly connected with rotating rod, the outer wall front side of rotating rod is fixedly connected with drum.The utility model in the present application, pull handle to open cover plate, the tablet to be tested is placed into the inside of drum, simultaneously, start motor one output power driving driving shaft one, circular gear one, chain, circular gear two, rotating rod and drum rotation, drum rotation, to realize to the tablet for testing being placed into the inside of drum, improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of tablet testing technology, and in particular to a tablet friability tester and a moisture-proof device. Background Technology

[0002] Tablets are solid dosage forms, which are made by uniformly mixing drugs with suitable excipients and then pressing them into round or irregularly shaped tablets using pharmaceutical technology. They are produced by processing drug powders or granules, adding appropriate excipients, and creating tablets with a specific shape, size, hardness, and weight. They offer accurate dosage, convenient administration, and allow patients to take the prescribed dose as directed by their doctor. They are also of stable quality, and coating technology protects the drug from oxygen and moisture in the air, extending its shelf life. Production is highly mechanized, resulting in large output and relatively low cost. Tablets are easy to store and transport, small in size, and less prone to spoilage. They should have a complete and smooth appearance, uniform color, and suitable hardness and abrasion resistance to prevent breakage or wear during packaging and transportation. The content should be accurate, and weight variation should meet regulations. Therefore, a tablet friability tester and a moisture-proof device are needed for quality testing of tablets.

[0003] Currently available tablet friability testers and moisture-proof devices mainly consist of a drum unit, a drive unit, a frame, and a housing. In the large-scale production of tablets, tablet friability testers are used for online or sampling testing of tablet friability to ensure that tablets do not break or crack due to collisions and friction during transportation, storage, and use. However, during long-term use or high-speed operation, the connection between the drum and the shaft is prone to loosening, causing the drum to shake and affecting the movement trajectory of the tablets within the drum, thus leading to inaccurate test results. To solve these problems, existing technologies only improve the connection structure, enhancing its stability and increasing the processing precision of the connection parts to ensure a tight fit between the drum and the shaft. However, they do not improve the transmission structure of the tablet friability tester. Without improvement over a long period, the belt may loosen and wear, causing changes in the transmission ratio. This results in the actual drum speed not matching the set speed, and the speed fluctuation is significant. The movement of the tablets within the drum depends on a stable speed, which cannot meet the usage requirements. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a tablet friability tester and a moisture-proof device, aiming to improve the problem that the transmission structure of the tablet friability tester has not been improved in the prior art. If it is used for a long time without improvement, the belt may become loose and worn, which will cause the transmission ratio to change. This will cause the actual speed of the drum to be inconsistent with the set speed, and the speed fluctuation will be large. The movement of the tablet in the drum depends on the stable speed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tablet friability tester and a moisture-proof device, comprising a support frame, a motor fixedly connected to the bottom rear side of the support frame, a drive shaft fixedly connected to the output end of the motor, a circular gear fixedly connected to the front outer wall of the drive shaft, a chain meshing with the outer wall of the circular gear, a second circular gear meshing with the top of the chain, a rotating rod fixedly connected to the middle of the second circular gear, a drum fixedly connected to the front outer wall of the rotating rod, a cover plate rotatably connected to the top front side of the drum, a handle fixedly connected to the left front side of the cover plate, and a cleaning mechanism provided inside the drum for cleaning the inside of the drum.

[0006] As a further description of the above technical solution:

[0007] The cleaning mechanism includes a second motor, a second drive shaft fixedly connected to the output end of the second motor, a first bevel gear fixedly connected to the top of the outer wall of the second drive shaft, a second bevel gear meshing with the top front side of the first bevel gear, a transmission rod fixedly connected to the middle of the second bevel gear, a scraper fixedly connected to the front side of the outer wall of the transmission rod, and a cleaning block fixedly connected to the outer wall of the scraper.

[0008] As a further description of the above technical solution:

[0009] A fixing block is fixedly connected to the left side of the motor, and the front side of the fixing block is fixedly connected to the rear side of the support frame.

[0010] As a further description of the above technical solution:

[0011] A battery is fixedly connected to the rear right side of the support frame, and a controller is fixedly connected to the rear middle side of the support frame.

[0012] As a further description of the above technical solution:

[0013] A protective shell is fixedly connected to the rear side of the support frame, and multiple heat dissipation holes are provided on the upper and lower parts of the rear side of the protective shell.

[0014] As a further description of the above technical solution:

[0015] The bottom of each support frame is fixedly connected with multiple anti-slip pads, and the outer wall of the handle is fixedly connected with an anti-slip sleeve.

[0016] As a further description of the above technical solution:

[0017] A fixing block two is fixedly connected to the left side of the motor two, and the front side of the fixing block two is fixedly connected to the rear side of the support frame.

[0018] As a further description of the above technical solution:

[0019] The support frame has weight-reducing holes on the upper and lower front sides, and a nameplate is fixedly connected to the left rear side of the support frame.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, pulling the handle opens the cover, and the tablets to be tested are placed inside the drum. At the same time, the motor is started, and the output power drives the drive shaft to rotate. The rotation of the drive shaft drives the circular gear to rotate, which in turn drives the chain to rotate. The chain rotates, which in turn drives the second circular gear to rotate, which in turn drives the rotating rod to rotate. The rotating rod then drives the drum to rotate, thus enabling the testing of the tablets placed inside the drum and improving work efficiency.

[0022] 2. In this utility model, after the tablet test is completed, the second motor outputs power to drive the second drive shaft to rotate. The rotation of the second drive shaft drives the first bevel gear to rotate, the rotation of the first bevel gear drives the second bevel gear to rotate, the rotation of the second bevel gear drives the transmission rod to rotate, the rotation of the transmission rod drives the scraper to rotate, and the rotation of the scraper drives the cleaning block to clean the inside of the drum, thereby cleaning the fragments after the tablet test and avoiding the residual fragments from affecting the next test. Attached Figure Description

[0023] Figure 1 This is a perspective view of the support frame of a tablet friability tester and moisture-proof device proposed in this utility model;

[0024] Figure 2 This is a structural diagram of the motor of a tablet friability tester and moisture-proof device proposed in this utility model;

[0025] Figure 3 This is a structural diagram of the motor of a tablet friability tester and moisture-proof device proposed in this utility model;

[0026] Figure 4 This is a diagram illustrating the drum structure of a tablet friability tester and moisture-proof device proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the protective shell structure of a tablet friability tester and moisture-proof device proposed in this utility model.

[0028] Legend:

[0029] 1. Support frame; 2. Cleaning mechanism; 201. Motor II; 202. Drive shaft II; 203. Bevel gear I; 204. Bevel gear II; 205. Transmission rod; 206. Scraper; 207. Cleaning block; 3. Motor I; 4. Drive shaft I; 5. Circular gear I; 6. Chain; 7. Circular gear II; 8. Rotating rod; 9. Drum; 10. Cover plate; 11. Handle; 12. Fixing block I; 13. Battery; 14. Controller; 15. Protective shell; 16. Heat dissipation holes; 17. Anti-slip pad; 18. Anti-slip sleeve; 19. Fixing block II; 20. Weight reduction hole; 21. Nameplate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides a tablet friability tester and a moisture-proof device, including a support frame 1. A motor 3 is fixedly connected to the bottom rear side of the support frame 1 to provide stable support for the motor 3. A drive shaft 4 is fixedly connected to the output end of the motor 3 to transmit power. A circular gear 5 is fixedly connected to the front side of the outer wall of the drive shaft 4. A chain 6 is meshed with the outer wall of the circular gear 5. A circular gear 7 is meshed with the top of the chain 6. A rotating rod 8 is fixedly connected to the middle of the circular gear 7. A rotating drum 9 is fixedly connected to the front side of the outer wall of the rotating rod 8 to transmit power to the rotating drum 9 for operation. A cover plate 10 is rotatably connected to the top front side of the rotating drum 9 to close the rotating drum 9. A handle 11 is fixedly connected to the left front side of the cover plate 10. A cleaning mechanism 2 is provided inside the rotating drum 9 to clean the inside of the rotating drum 9.

[0032] Specifically, the rear bottom of the support frame 1 is fixedly connected to the motor 3 to provide stable support for the motor 3. The output end of the motor 3 is fixedly connected to the drive shaft 4 to transmit power. The front side of the outer wall of the drive shaft 4 is fixedly connected to the circular gear 5. The outer wall of the circular gear 5 is meshed with the chain 6. The top of the chain 6 is meshed with the circular gear 7. The middle part of the circular gear 7 is fixedly connected to the rotating rod 8. The front side of the outer wall of the rotating rod 8 is fixedly connected to the drum 9 to transmit power to the drum 9 for operation. The top front side of the drum 9 is rotatably connected to the cover plate 10 to close the drum 9. The left front side of the cover plate 10 is fixedly connected to the handle 11.

[0033] Please see the appendix Figure 2 - Appendix Figure 3 The cleaning mechanism 2 includes a second motor 201. The output end of the second motor 201 is fixedly connected to a second drive shaft 202 to ensure rapid power transmission. A first bevel gear 203 is fixedly connected to the top of the outer wall of the second drive shaft 202. A second bevel gear 204 is meshed with the top front side of the first bevel gear 203. A transmission rod 205 is fixedly connected to the middle of the second bevel gear 204. A scraper 206 is fixedly connected to the front side of the outer wall of the transmission rod 205 to form a cleaning structure. A cleaning block 207 is fixedly connected to the outer wall of the scraper 206 to ensure the cleaning efficiency and effect of the entire device.

[0034] Specifically, the output end of motor 201 is fixedly connected to drive shaft 202 to ensure rapid power transmission. The top of the outer wall of drive shaft 202 is fixedly connected to bevel gear 203. The front top of bevel gear 203 meshes with bevel gear 204. The middle part of bevel gear 204 is fixedly connected to transmission rod 205. The front outer wall of transmission rod 205 is fixedly connected to scraper 206 to form a cleaning structure. The outer wall of scraper 206 is fixedly connected to cleaning block 207 to ensure the cleaning efficiency and effect of the entire device.

[0035] Please see the appendix Figure 3 - Appendix Figure 4A fixing block 12 is fixedly connected to the left side of motor 3. The front part of the fixing block 12 is firmly connected to the rear part of support frame 1. The front of the fixing block 12 is fixedly connected to the rear of support frame 1. A battery 13 is fixedly connected to the right rear of support frame 1 to ensure the power supply required for motor operation. A controller 14 is fixedly connected to the middle rear of support frame 1. The controller 14 is responsible for precise control and management of the motor. A protective shell 15 is fixedly connected to the rear of support frame 1. This protective shell 15 not only protects the internal components from the influence of the external environment, but also has multiple heat dissipation holes 16 on the upper and lower rear sides of the protective shell 15. These heat dissipation holes 16 are used to effectively dissipate the heat generated by the generator and controller 14 during operation, ensuring stable operation of the equipment and extending its service life.

[0036] Specifically, the left side of motor 3 is fixedly connected to fixing block 12, and the front part of fixing block 12 is firmly connected to the rear part of support frame 1. The right rear part of support frame 1 is fixedly connected to battery 13 to ensure the power supply required for motor operation. At the same time, the middle rear part of support frame 1 is fixedly connected to controller 14. Controller 14 is responsible for precise control and management of motor. A protective shell 15 is also fixedly connected to the rear of support frame 1. This protective shell 15 not only protects the internal components from the influence of the external environment, but also has multiple heat dissipation holes 16 on its upper and lower rear parts. These heat dissipation holes 16 are for effectively dissipating the heat generated by generator and controller 14 during operation, ensuring stable operation of equipment and extending service life.

[0037] Please see the appendix Figure 3 - Appendix Figure 5 Multiple anti-slip pads 17 are fixedly connected to the bottom of the support frame 1. These anti-slip pads 17 are designed to provide additional stability and prevent the support frame 1 from sliding on various surfaces, thereby ensuring the stability of the equipment. Anti-slip sleeves 18 are fixedly connected to the outer wall of the handle 11, which can increase the user's grip comfort and grip stability and reduce the risk of slippage during operation. A fixing block 19 is fixedly connected to the left side of the motor 201. This fixing block 19 not only supports the motor but also ensures the stability of the motor during operation. The front side of the fixing block 19 is fixedly connected to the rear side of the support frame 1. Weight reduction holes 20 are provided on the upper and lower parts of the front side of the support frame 1. These weight reduction holes 20 maintain the strength of the structure and effectively reduce the use of materials, thereby reducing the weight of the equipment. A nameplate 21 is fixedly connected to the rear left side of the support frame 1. The nameplate 21 usually contains relevant product information, which makes it convenient for users to identify and understand the product information.

[0038] Specifically, multiple anti-slip pads 17 are fixedly connected to the bottom of the support frame 1. These anti-slip pads 17 are designed to provide additional stability and prevent the support frame 1 from sliding on various surfaces, thereby ensuring the stability of the equipment. Anti-slip sleeves 18 are fixedly connected to the outer wall of the handle 11, which increases the user's grip comfort and stability and reduces the risk of slippage during operation. On the left side of the motor 201, a fixing block 2 19 is fixedly connected. This fixing block 2 19 not only supports the motor but also ensures the stability of the motor during operation. The front side of the fixing block 2 19 is fixedly connected to the rear side of the support frame 1, further enhancing the stability of the overall structure. In order to reduce the overall weight, weight reduction holes 20 are provided on the upper and lower parts of the front side of the support frame 1. These weight reduction holes 20 maintain the strength of the structure and effectively reduce the use of materials, thereby reducing the weight of the equipment. A nameplate 21 is fixedly connected to the left rear side of the support frame 1. The nameplate 21 usually contains relevant product information, making it convenient for users to identify and understand product information.

[0039] Working principle: When in use, pull handle 11 to open cover 10, put the tablet to be tested into the inside of drum 9, and at the same time, start motor 3 to output power to drive drive shaft 4 to rotate. Drive shaft 4 rotates to drive circular gear 5 to rotate. Circular gear 5 rotates to drive chain 6 to rotate. Chain 6 rotates to drive circular gear 7 to rotate. Circular gear 7 rotates to drive rotating rod 8 to rotate. Rotating rod 8 rotates to drive drum 9 to rotate. Drum 9 rotates, thereby realizing the testing of tablets put into drum 9 and improving work efficiency.

[0040] After the tablet test is completed, the starting motor 201 outputs power to drive the drive shaft 202 to rotate. The rotation of the drive shaft 202 drives the bevel gear 203 to rotate, which in turn drives the bevel gear 204 to rotate. The rotation of the bevel gear 204 drives the transmission rod 205 to rotate, which in turn drives the scraper 206 to rotate. The rotation of the scraper 206 drives the cleaning block 207 to clean the inside of the drum 9, thereby cleaning the fragments after the tablet test and preventing residual fragments from affecting the next test.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tablet friability tester and a moisture-proof device, comprising a support frame (1), characterized in that: A motor (3) is fixedly connected to the bottom rear side of the support frame (1). A drive shaft (4) is fixedly connected to the output end of the motor (3). A circular gear (5) is fixedly connected to the front side of the outer wall of the drive shaft (4). A chain (6) is meshed with the outer wall of the circular gear (5). A circular gear (7) is meshed with the top of the chain (6). A rotating rod (8) is fixedly connected to the middle of the circular gear (7). A drum (9) is fixedly connected to the front side of the outer wall of the rotating rod (8). A cover plate (10) is rotatably connected to the top front side of the drum (9). A handle (11) is fixedly connected to the left front side of the cover plate (10). A cleaning mechanism (2) is provided inside the drum (9). The cleaning mechanism (2) is used to clean the inside of the drum (9).

2. The tablet friability tester and moisture-proof device according to claim 1, characterized in that: The cleaning mechanism (2) includes a second motor (201), the output end of which is fixedly connected to a second drive shaft (202), a first bevel gear (203) is fixedly connected to the top of the outer wall of the second drive shaft (202), a second bevel gear (204) is meshed with the top front side of the first bevel gear (203), a transmission rod (205) is fixedly connected to the middle of the second bevel gear (204), a scraper (206) is fixedly connected to the front side of the outer wall of the transmission rod (205), and a cleaning block (207) is fixedly connected to the outer wall of the scraper (206).

3. The tablet friability tester and moisture-proof device according to claim 1, characterized in that: A fixing block (12) is fixedly connected to the left side of the motor (3), and the front side of the fixing block (12) is fixedly connected to the rear side of the support frame (1).

4. The tablet friability tester and moisture-proof device according to claim 1, characterized in that: A battery (13) is fixedly connected to the right rear side of the support frame (1), and a controller (14) is fixedly connected to the middle rear side of the support frame (1).

5. The tablet friability tester and moisture-proof device according to claim 1, characterized in that: The support frame (1) is fixedly connected to a protective shell (15) on its rear side, and the upper and lower parts of the rear side of the protective shell (15) are provided with multiple heat dissipation holes (16).

6. The tablet friability tester and moisture-proof device according to claim 1, characterized in that: The bottom of each support frame (1) is fixedly connected with multiple anti-slip pads (17), and the outer wall of the handle (11) is fixedly connected with an anti-slip sleeve (18).

7. The tablet friability tester and moisture-proof device according to claim 2, characterized in that: The left side of the motor 2 (201) is fixedly connected to the fixing block 2 (19), and the front side of the fixing block 2 (19) is fixedly connected to the rear side of the support frame (1).

8. The tablet friability tester and moisture-proof device according to claim 1, characterized in that: The support frame (1) has weight-reducing holes (20) on the upper and lower front sides, and a nameplate (21) is fixedly connected to the left rear side of the support frame (1).