Filtering device for preparing hypoglycemic drug intermediate

Abstract

The utility model discloses a hypoglycemic drug intermediate preparation filtering device, which relates to the technical field of medical intermediate preparation filtering, and comprises a box body, a mounting frame is arranged in the box body, the inner side wall of the mounting frame is fixedly connected with a mounting block, the inner side wall of the mounting frame is provided with a mounting groove, and a spring is arranged in the mounting frame. Mounting grooves are formed in the mounting frame, the springs are located in the mounting grooves, clamping blocks are arranged at one ends of the springs, a first filter plate is arranged on the inner side wall of the mounting frame, a second filter plate is arranged in the mounting frame, and clamping grooves are formed in the lower ends of the first filter plate and the second filter plate. The first filter plate and the second filter plate are mounted, operation is simple, clamping blocks are directly pressed to be retracted into the mounting grooves, the filter screen is dismounted, the mounting frame is a whole, and convenience of dismounting or mounting of the first filter plate, the second filter plate and the filter screen is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of preparation and filtration of pharmaceutical intermediates, in particular to a standby filtration device for the preparation of hypoglycemic drug intermediates. Background Art

[0002] Pharmaceutical intermediates are some chemical raw materials or chemical products used in the process of drug synthesis. When using pharmaceutical intermediates, whether they are raw materials, pharmaceuticals or excipients, they need to be filtered.

[0003] Chinese patent document CN213725142U discloses a spare filtering device for a pharmaceutical intermediate system, including a box body, a box cover movably connected to the top of the box body, slots are provided on both sides of the inner wall of the box body, matching plug-ins are provided in two groups of the slots, a filter plate 1 is provided between the two groups of the plug-ins, a plurality of groups of large filter holes are provided on the filter plate 1, a filter plate 2 is provided below the filter plate 1, a plurality of groups of small filter holes are provided on the filter plate 2, a filter assembly is provided below the filter plate 2, the filter plate 1, the filter plate 2 and the filter assembly are all connected to the plug-in board by screws, a liquid outlet pipe is provided at the lower end of the box body, the filter assembly includes an upper frame and a lower frame, a filter net is provided in the middle of the upper frame and the lower frame, the lower frame and the upper frame are connected by screws, and the length, width and thickness of the upper frame are equal to those of the lower frame. The above-mentioned spare filtering device for pharmaceutical intermediates has shortcomings. Although the device can achieve the filtration of pharmaceutical intermediates, it has limitations. In the setting, the first filter plate, the second filter plate and the filter screen are fixed and installed with screws and screws. When cleaning the first filter plate, the second filter plate and the filter screen, it is necessary to frequently turn the screws and screws, which is cumbersome to operate and increases the cleaning time. Secondly, after long-term use, the screws and screws are prone to stripping, which directly leads to the loosening of the connection between the first filter plate, the second filter plate, the filter screen and the mounting frame. At the same time, it is easy to cause the screws and screws to slide directly into the medicine solution, affecting the filtration of the pharmaceutical intermediates.

[0004] Therefore, in order to solve such problems, we proposed a backup filtering device for the intermediate production of hypoglycemic drugs. Utility Model Content

[0005] The purpose of the utility model is to provide a spare filtering device for an intermediate system of hypoglycemic drugs, aiming to solve the problem in the above-mentioned background technology that the existing spare filtering device for pharmaceutical intermediate systems needs to frequently turn screws and screws during use, which is cumbersome to operate, increases the cleaning time, and the screws and screws are prone to thread slippage after long-term use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a spare filtering device for an intermediate system of hypoglycemic drugs, comprising a box body, a mounting frame is arranged inside the box body, a mounting block is fixedly connected to the inner wall of the mounting frame, a mounting groove is opened on the inner wall of the mounting frame, a spring is arranged inside the mounting frame, the spring is located in the mounting groove, a clamping block is arranged at one end of the spring, a first filter plate is arranged on the inner wall of the mounting frame, a second filter plate is arranged inside the mounting frame, the lower ends of the first filter plate and the second filter plate are both provided with clamping grooves, and the mounting block is located in the clamping groove, a filter net is arranged on the bottom wall of the mounting frame, a liquid outlet pipe is arranged at the lower end of the box body, and a cover plate is arranged at the upper end of the box body.

[0007] Preferably, a groove is provided at the upper end of the installation frame, and a handle is provided inside the installation frame, and the handle is located in the groove.

[0008] Preferably, a limiting plate is provided on the inner bottom wall of the installation frame.

[0009] Preferably, guide frames are provided on the upper ends of the first filter plate and the second filter plate.

[0010] Preferably, the upper end of the mounting block is provided with a rounded corner.

[0011] Preferably, the block is in the shape of a right-angled trapezoid.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, a mounting block and a card slot are provided. The first filter plate and the second filter plate can be installed by directly using the mounting block to be inserted into the card slot at the lower end of the first filter plate and the second filter plate. The operation is simple. Secondly, a mounting slot, a spring and a card block are provided. The card block is directly pressed to retract it into the mounting slot to realize the disassembly of the filter screen. When the filter screen is installed, it can be directly pressed vertically downward. Secondly, the mounting frame is an integral whole, which further increases the convenience of disassembly or installation of the first filter plate, the second filter plate and the filter screen. This setting does not require screws and screws to fix the first filter plate, the second filter plate and the filter screen, avoids the situation where the screws and screws are slipped due to long-term use, and the structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of a standby filtering device for the intermediate production of hypoglycemic drugs proposed in the utility model Figure 1 ;

[0015] Figure 2 A three-dimensional schematic diagram of a standby filtering device for the intermediate production of hypoglycemic drugs proposed in the utility model Figure 2 ;

[0016] Figure 3A three-dimensional schematic diagram of the installation frame of a standby filter device for the intermediate production of hypoglycemic drugs proposed by the utility model Figure 1 ;

[0017] Figure 4 A three-dimensional schematic diagram of the installation frame of a standby filter device for the intermediate production of hypoglycemic drugs proposed by the utility model Figure 2 ;

[0018] Figure 5 A three-dimensional schematic diagram of the installation frame in a standby filtering device for the intermediate production of hypoglycemic drugs proposed by the utility model Figure 3 .

[0019] Legend:

[0020] 1. Box body; 11. Installation frame; 111. Groove; 112. Handle; 113. Installation block; 114. Limit plate; 115. Installation groove; 116. Spring; 117. Block; 12. First filter plate; 13. Second filter plate; 14. Filter screen; 15. Guide frame; 16. Slot; 2. Liquid outlet pipe; 3. Cover plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Reference Figure 1-5 The utility model provides an embodiment: a standby filtering device for an intermediate system of hypoglycemic drugs, comprising a box body 1, a mounting frame 11 is arranged inside the box body 1, a mounting block 113 is fixedly connected to the inner wall of the mounting frame 11, a mounting groove 115 is opened on the inner wall of the mounting frame 11, a spring 116 is arranged inside the mounting frame 11, the spring 116 is located in the mounting groove 115, a clamping block 117 is arranged at one end of the spring 116, a first filter plate 12 is arranged on the inner wall of the mounting frame 11, a second filter plate 13 is arranged inside the mounting frame 11, a clamping groove 16 is opened at the lower end of the first filter plate 12 and the second filter plate 13, and the mounting block 113 is located in the clamping groove 16, a filter screen 14 is arranged on the inner bottom wall of the mounting frame 11, a liquid outlet pipe 2 is arranged at the lower end of the box body 1, and a cover plate 3 is arranged at the upper end of the box body 1.

[0024] This arrangement performs a first filtration through the first filter plate 12 and the second filter plate 13, so that the first filter plate 12 and the second filter plate 13 filter out particles of different sizes, and then further filters through the filter net 14 to achieve multi-layer filtration and increase the filtering effect.

[0025] A groove 111 is provided at the upper end of the installation frame 11, and a handle 112 is provided inside the installation frame 11. The handle 112 is located in the groove 111 for facilitating the removal of the installation frame 11. Meanwhile, the handle 112 is provided in the groove 111 without occupying other space, thereby reducing space occupancy and increasing practicality.

[0026] A limit plate 114 is disposed on the inner bottom wall of the installation frame 11 for limiting the position of the filter screen 14 during installation, thereby facilitating quick installation of the filter screen 14 .

[0027] A guide frame 15 is provided at the upper end of the first filter plate 12 and the second filter plate 13 to prevent the liquid from remaining at the contact point between the first filter plate 12 and the second filter plate 13 and the inner wall of the box body 1, thereby increasing the filtering effect.

[0028] The upper end of the mounting block 113 is provided with a rounded corner to facilitate the engagement of the mounting block 113 with the card slot 16 .

[0029] The block 117 is in the shape of a right-angled trapezoid, and is used to directly press the filter 14 vertically downward to install the filter 14 .

[0030] Working principle: first, the first filtration is performed through the first filter plate 12 and the second filter plate 13, and then the first filter plate 12 and the second filter plate 13 filter out particles of different sizes, and then the filter screen 14 is used for further filtration to achieve multi-layer filtration and increase the filtering effect. Secondly, when the first filter plate 12 and the second filter plate 13 need to be cleaned, they can be directly lifted up and then pulled out horizontally. There is no need to frequently turn the screws and screws. The structure is simple and easy to operate. Secondly, when cleaning the filter screen 14, directly press the block 117, and then the block 117 squeezes the spring 116, and then the block 117 retracts into the installation groove 115. When the filter screen 14 is installed, one end of the filter screen 14 is close to the limit plate 114, and then pressed down. The operation is convenient.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A standby filtering device for an intermediate system of hypoglycemic drugs, comprising a housing (1), characterized in that: The box body (1) is provided with a mounting frame (11) inside, the inner side wall of the mounting frame (11) is fixedly connected with a mounting block (113), the inner side wall of the mounting frame (11) is provided with a mounting groove (115), a spring (116) is provided inside the mounting frame (11), the spring (116) is located in the mounting groove (115), a clamping block (117) is provided at one end of the spring (116), a first filter plate (12) is provided on the inner side wall of the mounting frame (11), a second filter plate (13) is provided inside the mounting frame (11), the lower ends of the first filter plate (12) and the second filter plate (13) are both provided with a clamping groove (16), and the mounting block (113) is located in the clamping groove (16), a filter screen (14) is provided on the inner bottom wall of the mounting frame (11), a liquid outlet pipe (2) is provided at the lower end of the box body (1), and a cover plate (3) is provided at the upper end of the box body (1).

2. The filtration device for preparing the intermediate of hypoglycemic drugs according to claim 1, characterized in that: A groove (111) is provided at the upper end of the installation frame (11), and a handle (112) is provided inside the installation frame (11), and the handle (112) is located in the groove (111).

3. The filtration device for preparing the intermediate of hypoglycemic drugs according to claim 1, characterized in that: A limiting plate (114) is provided on the inner bottom wall of the installation frame (11).

4. The filtration device for preparing the intermediate of hypoglycemic drugs according to claim 1, characterized in that: A flow guide frame (15) is disposed at the upper end of each of the first filter plate (12) and the second filter plate (13).

5. The filtration device for preparing the intermediate of hypoglycemic drugs according to claim 1, characterized in that: The upper end of the mounting block (113) is provided with a rounded corner.

6. The filtration device for preparing the intermediate of hypoglycemic drugs according to claim 1, characterized in that: The block (117) is in the shape of a right-angled trapezoid.

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