Dissolution tester filter element replacing device

Abstract

The utility model relates to the field of dissolution instrument equipment, and particularly discloses a dissolution instrument filter element replacement device which comprises a feeding disc assembly and a falling-off assembly, the feeding disc assembly is used for automatically feeding a filter element, and the falling-off assembly is used for automatically falling off the filter element. The putting disc assembly comprises a putting disc, a filter element placing plate, a filter element baffle, a first driving device and a second driving device, the putting disc is arranged, the filter element placing plate is arranged on the putting disc in a sliding mode, a filter element placing hole is formed in the filter element placing plate, and a filter element is placed in the filter element placing hole; and the filter element baffle is arranged to control whether the filter element can fall down from the filter element placing hole or not, so that the replacement of the filter element is controlled.

Description

Technical Field

[0001] The invention relates to the field of dissolution instrument equipment, and in particular to a dissolution instrument filter element replacement device. Background Art

[0002] The drug dissolution test simulates the dissolution and absorption process of the human body through a dissolution apparatus. By setting specific test conditions (such as temperature, stirring speed, etc.), the drug preparation is placed in an appropriate solution medium for dissolution and release.

[0003] The dissolution test process will produce excipients. In order to filter out the particles of the excipients, the filter element needs to be manually installed at the bottom of the sampling needle before each dissolution test to achieve effective filtration. Each sampling needle in the dissolution cup needs to be equipped with a filter element separately, and the used filter element must be removed and replaced with a new one after each dissolution test. The process is cumbersome, and in order to avoid cross contamination, the operator needs to wear gloves during operation, which makes the filter element easy to be damaged under manual operation. Summary of the invention

[0004] The present invention is intended to solve the technical problems mentioned in the above-mentioned background technology, such as: 1. In the existing drug dissolution process, the filter element is installed and disassembled manually, which is a cumbersome process; 2. In order to avoid cross infection, the operator needs to wear gloves when replacing the filter element, which leads to the problem of filter element damage easily during manual replacement.

[0005] In order to solve the above problems, the present invention proposes the following technical solutions:

[0006] A dissolution instrument filter element replacement device comprises a placing tray assembly and a shedding assembly, wherein the placing tray assembly is used for automatically placing the filter element, and the shedding assembly is used for automatically shedding the filter element.

[0007] Preferably, the delivery tray assembly comprises: a delivery tray, a filter element placement plate, a filter element baffle, a first drive device and a second drive device.

[0008] Preferably, a delivery slot is provided on the delivery tray, the filter element placement plate is slidably provided in the delivery slot, a plurality of filter element placement holes are provided on the filter element placement plate, the second driving device pushes the filter element placement plate to move left and right in the delivery slot, the filter element baffle is provided at the bottom of the filter element placement plate, a filter element discharge hole is provided on the filter element baffle, and the first driving device pushes the filter element baffle to move left and right.

[0009] Preferably, the first driving device and the second driving device include but are not limited to a linear module, a push rod device, and a cylinder device.

[0010] Preferably, the shedding assembly is fixed on the delivery tray, the shedding assembly is located above the solvent cup, and the shedding assembly includes a filter element block, and a limiting hole is provided on the filter element block.

[0011] Preferably, the top opening end of the limiting hole is a conical structure.

[0012] Preferably, a grip rod is provided on one side of the top of the filter element placement plate.

[0013] The beneficial effects of the present invention are:

[0014] 1. Set a delivery tray, slide a filter element placement plate on the delivery tray, set a filter element placement hole on the filter element placement plate, place the filter element in the filter element placement hole, and then set a filter element baffle to control whether the filter element can fall from the filter element placement hole, so as to control the replacement of the filter element.

[0015] 2. Automatic control of filter element replacement is achieved by setting a first driving device and a second driving device to push the filter element baffle and the filter element placement plate, thereby avoiding manual operation and causing damage to the filter element.

[0016] 3. By setting a filter element block above the filter element placement plate and setting a limit hole on the filter element block, the filter element can be automatically recovered, eliminating manual recovery and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0020] Figure 4 This is the assembly drawing of the utility model;

[0021] Figure 5 for Figure 4 Enlarged image of the circle in the middle.

[0022] In the figure: 1. delivery tray assembly; 1-1. delivery tray; 1-11. delivery slot; 1-12. limiting slot; 1-2. filter element placement plate; 1-21. filter element placement hole; 1-22. slide slot; 1-3. filter element baffle; 1-31. filter element discharge hole; 1-4. first drive device; 1-41. push rod; 1-5. second drive device; 1-51. push rod arm; 1-52. limiting rod; 2. shedding assembly; 2-1. filter element block; 2-2. limiting hole; 3. solvent cup; 4. connecting plate; 4-1. limiting column; 5. filter element; 6. sampling needle; 7. gripping rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described in the terms "fixed connection" and "fixed setting" include but are not limited to "welding", "riveting", "adhesion" and "threaded connection". The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device.

[0025] The directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] Embodiment 1

[0027] Reference Figure 1-5 A dissolution instrument filter element replacement device includes a placing plate component 1 and a shedding component 2, wherein the placing plate component 1 is used for automatically placing the filter element, and the shedding component 2 is used for automatically shedding the filter element.

[0028] Preferably, the delivery tray assembly includes: a delivery tray 1-1, a filter element placement plate 1-2, a filter element baffle 1-3, a first drive device 1-4 and a second drive device 1-5.

[0029] Preferably, a delivery slot 1-11 is provided on the delivery tray 1-1, a filter element placement plate 1-2 is slidably provided in the delivery slot 1-11, eight filter element placement holes 1-21 are provided on the filter element placement plate 1-2, a slide slot 1-22 is provided at the bottom of the filter element placement plate 1-2, a filter element baffle 1-3 is slidably connected in the slide slot 1-22, a filter element discharge hole 1-31 is provided on the filter element baffle 1-3, a first driving device 1-4 is fixed at the bottom of the delivery tray 1-1, a push rod 1-41 is provided at one end of the first driving device 1-4, one end of the push rod 1-41 is connected to the bottom of the filter element baffle 1-3, and the first driving device 1-4 can control the filter element baffle 1-3 to move left and right The second driving device 1-5 is fixed at the bottom of the delivery tray 1-1, and a connecting plate 4 is fixedly arranged at the bottom of the filter element placement plate 1-2. Eight limit columns 4-1 are arranged on the connecting plate 4. The intervals between the eight limit columns 4-1 are consistent with the intervals between the eight filter element placement holes 1-21. One end of the second driving device 1-5 is hingedly connected to a push rod arm 1-51. The push rod arm 1-51 is an L-shaped structure. A limit rod 1-52 is arranged on the top of the push rod arm 1-51. A limit slot 1-12 is arranged on the delivery tray 1-1. One end of the limit rod 1-52 passes through the limit slot 1-12 and is located above the delivery tray 1-1. One end of the push rod arm 1-51 is located between multiple limit columns 4-1.

[0030] Preferably, the first drive device 1-4 and the second drive device 1-5 include but are not limited to a linear module, a push rod device, a cylinder device, etc.

[0031] Preferably, the shedding assembly 2 is fixed on the delivery tray 1-1, and the shedding assembly 2 is located above the solvent cup. The shedding assembly 2 includes a filter element stopper 2-1, and a limiting hole 2-2 is provided on the filter element stopper 2-1.

[0032] Preferably, the top opening end of the limiting hole 2-2 is a conical structure.

[0033] Preferably, a gripping rod 7 is provided on one side of the top of the filter element placement plate 1-2.

[0034] In actual operation, S1: the staff first puts the filter element 5 into the filter element placement hole 1-21, and debugs the first driving device 1-4. Make the first driving device 1-4 in a contracted state, and the filter element discharge hole 1-31 on the filter element baffle 1-3 connected to the first driving device is staggered with the filter element placement hole 1-21 on the filter element placement plate 1-2, and debug the second driving device 1-5 so that the distance that the second driving device 1-5 pushes the push rod arm 1-51 to move is consistent with the spacing between adjacent limit columns 4-1.

[0035] S2, when the filter element needs to be replaced, the sampling needle 6 moves downward from the top of the solvent cup 3, passes through the limit hole 2-2 on the filter element block 2-1 and continues to descend, and then the sampling needle 6 is inserted into the middle of the filter element 5. At this time, the sampling needle 6 is blocked by the filter element baffle 1-3, and the first driving device 1-4 is started. The first driving device 1-4 pushes the push rod 1-41 to move, and the push rod 1-41 pushes the filter element baffle 1-3 to move. The filter element discharge hole 1-31 located on the filter element baffle 1-3 gradually becomes concentric with the filter element placement hole 1-21 on the filter element placement plate 1-2. When the filter element discharge hole 1-31 is concentric with the filter element placement hole 1-21, the sampling needle 6 will drive the filter element to pass through the filter element discharge hole 1-31 and fall into the solvent cup 3 below. At this time, the filter element is replaced.

[0036] S3, when the filter element needs to be removed, first lift the sampling needle 6, the sampling needle 6 will take the filter element 5 out of the solvent cup 3 until it passes through the filter element feeding hole 1-31 and the filter element placement hole 1-21, when the filter element 5 below the sampling needle 6 contacts the filter element block 2-1, it will be blocked by the filter element block 2-1, the sampling needle 6 will continue to move upward until it is removed from the limiting hole 2-2 on the filter element block 2-1, the filter element 5 will detach from the sampling needle 6, and then fall into the solvent cup below.

[0037] S4, when the filter element needs to be replaced again, first start the first drive device 1-4, adjust the first drive device 1-4 to the initial position, and then start the second drive device 1-5, so that the second drive device 1-5 pushes the push rod arm 1-51 to move to the right, and the push rod arm 1-51 pushes the limit column 4-1 to move, and the limit column 4-1 drives the filter element placement plate 1-2 to move, so that the second filter element placement hole 1-21 of the filter element placement plate 1-2 moves to the first filter element placement hole 1-21 position, and then the second drive device 1-5 returns to the initial position, and continues the operation of S2.

Claims

1. A dissolution instrument filter element replacement device, characterized in that: The invention comprises a delivery tray assembly (1) and a shedding assembly (2), wherein the delivery tray assembly (1) is used for automatically delivering a filter element, and the shedding assembly (2) is used for automatically shedding a filter element, and the delivery tray assembly comprises: a delivery tray (1-1), a filter element placement plate (1-2), a filter element baffle (1-3), a first drive device (1-4), and a second drive device (1-5).

2. A dissolution instrument filter element replacement device according to claim 1, characterized in that: The delivery tray (1-1) is provided with a delivery slot (1-11), the filter element placement plate (1-2) is slidably arranged in the delivery slot (1-11), the filter element placement plate (1-2) is provided with a filter element placement hole (1-21), the second driving device (1-5) pushes the filter element placement plate (1-2) to move left and right in the delivery slot (1-11), the filter element baffle plate (1-3) is arranged at the bottom of the filter element placement plate (1-2), the filter element discharge hole (1-31) is provided on the filter element baffle plate (1-3), and the first driving device (1-4) pushes the filter element baffle plate (1-3) to move left and right.

3. A dissolution instrument filter element replacement device according to claim 2, characterized in that: The first drive device (1-4) and the second drive device (1-5) include but are not limited to a linear module, a push rod device, and a cylinder device.

4. The filter element replacement device of a dissolution apparatus according to claim 1, characterized in that: The shedding assembly (2) is fixed on the delivery tray (1-1), and the shedding assembly (2) comprises a filter element block (2-1), and a limiting hole (2-2) is provided on the filter element block (2-1).

5. A dissolution instrument filter element replacement device according to claim 4, characterized in that: The top opening end of the limiting hole (2-2) is a conical structure.

6. A dissolution instrument filter element replacement device according to claim 1, characterized in that: A grip rod (7) is provided on one side of the top of the filter element placement plate (1-2).

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