Paddle rod automatic connection and basket rotating device

Abstract

The present application relates to a kind of paddle rod automatic connection rotary basket device, including circular rotary drum and the driving device of driving circular rotary drum rotation, circular rotary drum is arranged in ring and is opened with several through openings for rotary basket to pass, through the rotation of circular rotary drum makes each through opening sequentially with lifting port position corresponding, each through opening is placed with a rotary basket respectively, and through opening is equipped with the blocking member for limiting rotary basket, blocking member has elasticity and shrink under the action of pressure;Through lifting frame drive rotary lever to descend and embed into through opening, rotary lever bottom end is connected with the rotary basket in through opening by connecting seat and presses rotary basket, so that blocking member shrink and no longer limit rotary basket;When rotary lever rises, rotary basket enters into through opening upwards and under the action of blocking member, so that rotary basket stays in through opening and separates from rotary lever, rotary lever and rotary basket are automatically connected and separated, replace manual operation, improve the efficiency of feeding, realize the automatic replacement function of rotary basket.

Description

Technical Field

[0001] This invention belongs to the technical field of dissolution apparatus basket carrier devices, specifically relating to an automatic paddle-spindle connection rotating basket device. Background Technology

[0002] Drug dissolution rate refers to the rate and extent to which a drug dissolves from solid dosage forms such as tablets or capsules in a specified medium under certain conditions. Drug dissolution rate directly affects the absorption and utilization of drugs in the body and is an important indicator for evaluating drug quality. A drug dissolution apparatus is the instrument used to conduct drug dissolution tests. During drug dissolution experiments, drug addition is required. Existing technologies include automated basket-carrying devices used in paddle dissolution tests, which can achieve automatic and synchronous drug addition. However, currently, in basket dissolution tests, the drug needs to be placed in a rotating basket and then manually placed onto the rotating rod. After dissolution, the rotating basket needs to be manually removed, cleaned, and replaced. Only one rotating basket can be used per operation, resulting in low efficiency due to manual operation. Summary of the Invention

[0003] To address the aforementioned problems, this invention discloses an automatic paddle-connected rotating basket device, which solves the problem of low efficiency in manual assembly of rotating baskets in existing basket dissolution experiments.

[0004] The specific technical solution is as follows: An automatic paddle-mounted basket-connecting device is installed in a dissolution apparatus. The dissolution apparatus includes a liftable frame and a cover plate below the frame. A rotating rod is longitudinally mounted on the frame. The cover plate has lifting openings corresponding to the positions of the rotating rod. A basket-mounting device is positioned at the lifting openings on the cover plate. The basket-mounting device includes a circular rotating cylinder and a drive mechanism for rotating the cylinder. The circular rotating cylinder has several openings arranged in a ring for the basket to pass through. Rotation of the cylinder causes each opening to sequentially align with a lifting opening. A basket is placed in each opening. The rotating basket has a retaining element in its opening to restrict its passage. This retaining element is elastic and contracts under pressure. A lifting frame lowers the rotating rod, which then embeds itself into the opening. The bottom of the rotating rod presses down on the rotating basket in the opening via a connecting seat and engages with the basket. This causes the retaining element to contract and no longer restrict the basket, allowing the basket and rotating rod to pass through the opening and lifting port and enter the dissolution cup. When the rotating rod rises, the basket moves upward into the opening and, under the action of the retaining element, remains in the opening and separates from the rotating rod, thus achieving an automatic replacement function and replacing manual operation.

[0005] Furthermore, the bottom of the circular rotating cylinder is provided with a receiving groove, in which the driving device is installed. The bottom end of the driving device is fixedly connected to the cover plate, and the output end of the top end of the driving device is connected to the top end of the receiving groove, so as to realize that the driving device drives the circular rotating cylinder to rotate.

[0006] Furthermore, a positioning hole is provided at the top of the receiving groove, and a driving block is provided at the output end of the top of the driving device. A positioning rod is provided longitudinally at the top of the driving block and is inserted into the positioning hole, so as to realize the detachable connection between the circular rotating cylinder and the driving device.

[0007] Furthermore, the cover plate has several mounting grooves arranged in a ring at the bottom of the circular rotating cylinder. The mounting grooves are equipped with ball bearing assemblies, and the ball bearing assemblies support the bottom of the circular rotating cylinder through the balls, so as to realize the rolling connection between the circular rotating cylinder and the cover plate.

[0008] Furthermore, the blocking element is a number of layers of annular elastic sheets arranged longitudinally on the inner wall of the opening. The inner diameter of the elastic sheets is smaller than the diameter of the rotating basket, so that the elastic sheets can limit the rotation of the basket.

[0009] Furthermore, the circular rotating cylinder includes an upper cylinder, a lower cylinder, and partitions. Several partitions are arranged longitudinally between the upper cylinder and the lower cylinder. Several corresponding openings are provided on the upper cylinder, the lower cylinder, and the partitions. A layer of rubber sheet is laid between the partitions and the upper and lower cylinders, as well as between adjacent partitions. The rubber sheet has a circular hole with a diameter smaller than the diameter of the opening at each opening, so that the rubber sheet in the opening forms the elastic soft sheet.

[0010] Furthermore, the diameter of the opening in the upper cylinder is adapted to the diameter of the rotating basket, and the diameter of the opening in the lower cylinder and the partition plate is slightly larger than the diameter of the rotating basket.

[0011] Furthermore, the bottom of the connecting seat is provided with a locking block that engages with the rotating basket. The outer side of the locking block is provided with a groove, and an O-ring is fitted in the groove, so that the locking block is embedded downward into the rotating basket and is fixedly engaged with the inner wall of the top of the rotating basket by the O-ring.

[0012] The beneficial effects of this invention are reflected in: This invention uses a rotating cylindrical drum to allow the rotating basket inside the inlet to sequentially enter the melting cup for testing under the drive of the rotating rod, replacing manual operation, improving the efficiency of drug dosing, and realizing the automatic replacement function of the rotating basket.

[0013] In this invention, by setting several layers of annular rubber sheets inside the opening, the resistance generated by the rubber sheets on the rotating basket enables the rotating rod and the rotating basket to automatically connect and separate, thereby realizing the automatic connection and replacement of multiple rotating baskets in sequence, which meets the requirements of automatic synchronous testing of baskets. Attached Figure Description

[0014] Figure 1 This is a perspective view of the circular rotating cylinder in this invention.

[0015] Figure 2This is a side sectional view of the present invention.

[0016] Figure 3 This is an exploded view of the circular rotating cylinder of the present invention.

[0017] Rotating rod 21, connecting seat 23, snap-fit ​​part 231, groove 232, O-ring 233, cover plate 3, lifting port 31, mounting groove 311, ball assembly 312, circular rotating cylinder 4, upper cylinder 41, lower cylinder 42, partition plate 43, rubber sheet 44, elastic soft sheet 441, round hole 442, receiving groove 45, positioning hole 451, through port 401, driving device 5, driving block 51, positioning rod 52, rotating basket 6. Detailed Implementation

[0018] To make the technical solution of this invention clearer and more explicit, the invention will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this invention falls within the protection scope of this invention. The fixed connections and fixed installations mentioned in this invention are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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 invention.

[0020] Please see Figure 1-3 This embodiment provides an automatic paddle-connected rotating basket device, installed in a dissolution apparatus. The dissolution apparatus includes a liftable lifting frame and a cover plate 3 located below the lifting frame. The lifting frame is driven to rise and fall by a lifting drive device 5 within the dissolution apparatus. Several rotating rods 21 are longitudinally arranged on the lifting frame, and each rotating rod 21 has a connecting seat 23 connected to its bottom end. The bottom of the connecting seat 23 has a locking block portion that engages with the rotating basket. A groove 232 is provided on the outer side of the locking block portion, and an O-ring 233 is fitted within the groove 232. When the connecting seat 23 is connected to the rotating basket, it is inserted downwards into the rotating basket 6 through the locking block portion and secured to the inner wall of the top of the rotating basket by the O-ring 233. The cover plate 3 has several lifting ports 31 corresponding to the positions of the rotating rods 21, and a rotating basket device is installed at each lifting port 31 position on the cover plate 3.

[0021] The rotating basket device includes a circular rotating cylinder 4 and a driving device 5 for driving the circular rotating cylinder 4 to rotate. The circular rotating cylinder 4 has a cylindrical structure and 6-12 openings 401 arranged in a ring on the circular rotating cylinder 4 for the passage of the rotating basket and the connecting seat 23. The openings 401 pass through the circular rotating cylinder 4 from top to bottom. By rotating the circular rotating cylinder 4, each opening 401 corresponds to the position of the lifting port 31 in sequence. A rotating basket 6 is placed in each opening 401, and each opening 401 is provided with a blocking element for restricting the passage of the rotating basket. The blocking element is elastic and contracts under pressure. The blocking element is a number of layers of ring-shaped elastic soft sheets 441 arranged longitudinally on the inner wall of the opening 401. The inner diameter of the elastic soft sheets 441 is smaller than the diameter of the rotating basket. The number of layers of rubber sheets 44 can increase the resistance and ensure that the elastic soft sheets 441 can limit the rotation of the rotating basket. When placing the rotating basket 6, the rotating basket 6 is placed on the upper end of the elastic soft sheets 441 and located on the upper layer of the circular rotating cylinder 4. The lifting frame 2 drives the rotating rod 21 to descend and embed it into the port 401. The bottom end of the rotating rod 21 presses down on the rotating basket in the port 401 through the connecting seat 23 and engages with the rotating basket. This causes the blocking element to retract and no longer limit the rotating basket, so that the rotating basket and the rotating rod 21 pass through the port 401 and the lifting port 31 and enter the dissolution cup. When the rotating rod 21 rises, the rotating basket enters the port 401 upwards and, under the action of the blocking element, keeps the rotating basket in the port 401 and separates from the rotating rod 21, realizing the automatic replacement function of the rotating basket.

[0022] The circular rotating cylinder 4 has a receiving groove 45 at its bottom, in which a driving device 5, a servo motor, is installed. The bottom end of the driving device 5 is fixedly connected to the cover plate 3, and the output end of the top end of the driving device 5 is connected to the top end of the receiving groove 45, thereby enabling the driving device 5 to drive the circular rotating cylinder 4 to rotate. The top end of the receiving groove 45 has at least two positioning holes 451, and the output end of the top end of the driving device 5 has a driving block 51. The top end of the driving block 51 has a positioning rod 52 that is inserted and connected to the positioning holes 451, thereby enabling a detachable connection between the circular rotating cylinder 4 and the driving device 5.

[0023] In this embodiment, the circular rotating drum 4 includes an upper drum 41, a lower drum 42, and partitions 43. Four partitions 43 are arranged longitudinally between the upper drum 41 and the lower drum 42. Several openings 401 with corresponding positions are opened on the upper drum 41, the lower drum 42, and the partitions 43. The diameter of the openings 401 in the upper drum 41 is adapted to the diameter of the rotating basket, while the diameter of the openings 401 on the lower drum 42 and the partitions 43 is slightly larger than the diameter of the rotating basket. The lower openings 401 of the circular rotating drum 4, which are larger than the outer diameter of the rotating basket, are for the recovery of the rotating basket. Between; the upper cylinder 41, the lower cylinder 42 and the partition 43 are fixed together by fasteners to form a circular rotating cylinder 4; a layer of annular rubber sheet 44 is laid between the partition 43 and the upper cylinder 41 and the lower cylinder 42 and between adjacent partitions 43. The rubber sheet 44 has a circular hole 442 with a diameter smaller than the diameter of the opening 401 at each position of the opening 401, so that the rubber sheet 44 in the opening 401 forms several layers of elastic soft sheet 441, thereby increasing the resistance when the rotating basket moves in the opening 401.

[0024] In this embodiment, in order to increase the stability of the circular drum 4 when it rotates, a number of mounting grooves 311 are arranged in a ring on the cover plate 3 at the bottom of the circular drum 4. A ball bearing assembly 312 is installed in the mounting groove 311. The ball bearing assembly 312 includes a mounting base and a ball bearing movably disposed in the mounting base. The upper end of the ball bearing is attached to the bottom of the circular drum 4 and supports it, so as to realize the rolling connection between the circular drum 4 and the cover plate 3.

[0025] The working principle of this invention is as follows: During use, the rotating rod 21 descends and connects with the rotating basket 6 via the connecting seat 23. When the basket descends past the rubber sheet 44, the rubber sheet 44 generates resistance, ensuring close contact between the rotating rod 21 and the basket. The basket then continues to descend into the dissolution cup for dissolution testing. After the test, the basket 6 is cleaned in the dissolution cup. The rotating rod 21 then rises. When the basket ascends past the rubber sheet 44, because the aperture of the rubber sheet 44 is smaller than the basket, the rubber sheet covers the basket, preventing it from rising further. The rotating rod 21 continues to rise, leaving the circular rotating cylinder 4. The used basket remains in the basket recovery space. After each test, the circular rotating cylinder 4 automatically rotates to the next basket under the drive of the drive device 5, ready for the next test. This device enables automatic connection and replacement of multiple baskets, replacing manual operation.

[0026] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic paddle-mounted rotating basket device, installed in a dissolution apparatus, wherein the dissolution apparatus is provided with a liftable lifting frame and a cover plate (3) located below the lifting frame, a rotating rod (21) is longitudinally arranged on the lifting frame, and a lifting port (31) corresponding to the position of the rotating rod (21) is provided on the cover plate (3), and a rotating basket device is installed at the position of the lifting port (31) on the cover plate (3), characterized in that, The rotating basket device includes a circular rotating cylinder (4) and a driving device (5) for rotating the circular rotating cylinder (4). The circular rotating cylinder (4) has several openings (401) arranged in a ring for the basket to pass through. The rotation of the circular rotating cylinder (4) causes each opening (401) to correspond sequentially with the position of the lifting port (31). Each opening (401) contains a rotating basket (6), and each opening (401) is equipped with a blocking element to restrict the passage of the basket. The blocking element is elastic and contracts under pressure. The lifting frame (5)... 2) Drive the rotating rod (21) down and embed it into the through-hole (401). The bottom end of the rotating rod (21) presses down on the rotating basket in the through-hole (401) through the connecting seat (23) and engages with the rotating basket. This causes the blocking element to shrink and no longer limit the rotating basket, so that the rotating basket and the rotating rod (21) pass through the through-hole (401) and the lifting port (31) and enter the dissolution cup. When the rotating rod (21) rises, the rotating basket enters the through-hole (401) upward and, under the action of the blocking element, keeps the rotating basket in the through-hole (401) and separates from the rotating rod (21).

2. The automatic paddle-mounted basket-connecting device as described in claim 1, characterized in that, The bottom of the circular rotating cylinder (4) is provided with a receiving groove (45), and the driving device (5) is provided in the receiving groove (45). The bottom end of the driving device (5) is fixedly connected to the cover plate (3), and the output end of the top end of the driving device (5) is connected to the top end of the receiving groove (45) to realize that the driving device (5) drives the circular rotating cylinder (4) to rotate.

3. The automatic paddle-mounted basket-connecting device as described in claim 2, characterized in that, The top of the receiving groove (45) is provided with a positioning hole (451), and the output end of the top of the driving device (5) is provided with a driving block (51). The top of the driving block (51) is provided with a positioning rod (52) that is inserted and connected to the positioning hole (451) in the longitudinal direction, so as to realize the detachable connection between the circular rotating cylinder (4) and the driving device (5).

4. The automatic paddle-mounted basket-connecting device as described in claim 1, characterized in that, The cover plate (3) has several mounting grooves (311) arranged in a ring at the bottom of the circular rotating cylinder (4). The mounting grooves (311) are provided with ball bearing assemblies (312). The ball bearing assemblies (312) support the bottom of the circular rotating cylinder (4) through the ball bearings, so as to realize the rolling connection between the circular rotating cylinder (4) and the cover plate (3).

5. The automatic paddle-mounted basket-connecting device as described in claim 1, characterized in that, The blocking element is a number of layers of annular elastic sheets (441) arranged longitudinally on the inner wall of the opening (401). The inner diameter of the elastic sheets (441) is smaller than the diameter of the rotating basket, so that the elastic sheets (441) can limit the rotation of the basket.

6. The automatic paddle-mounted basket-connecting device as described in claim 5, characterized in that, The circular rotating cylinder (4) includes an upper cylinder (41), a lower cylinder (42), and partitions (43). Several partitions (43) are arranged longitudinally between the upper cylinder (41) and the lower cylinder (42). Several openings (401) are opened on the upper cylinder (41), the lower cylinder (42), and the partitions (43). A layer of rubber sheet (44) is laid between the partitions (43) and the upper cylinder (41) and the lower cylinder (42), as well as between adjacent partitions (43). The rubber sheet (44) is provided with a circular hole (442) with a diameter smaller than that of the opening (401) at the position of each opening (401), so that the rubber sheet (44) in the opening (401) forms the elastic soft sheet (441).

7. The automatic paddle-mounted basket-connecting device as described in claim 6, characterized in that, The diameter of the opening (401) in the upper cylinder (41) is adapted to the diameter of the rotating basket, and the diameter of the opening (401) on the lower cylinder (42) and the partition (43) is slightly larger than the diameter of the rotating basket.

8. The automatic paddle-mounted basket-connecting device as described in claim 1, characterized in that, The bottom of the connecting seat (23) is provided with a locking block that engages with the rotating basket. A groove (232) is provided on the outer side of the locking block, and an O-ring (233) is fitted in the groove (232), so that the locking block is embedded downward into the rotating basket and engaged and fixed with the inner wall of the top of the rotating basket by the O-ring (233).

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