Filtering device for medical intermediate production

Abstract

The utility model discloses a filtering device for medical intermediate production. The filtering device comprises a device body and a box door mounted on the front side of the device body, a feeding port is formed in the top of the device body, a guide plate is fixedly connected to the interior of the device body, and a discharging port is formed in one side of the device body; a filtering assembly is arranged in the device body and comprises an L-shaped mounting plate, a motor is mounted on the reverse side of the mounting plate, half teeth are rotationally connected to the front side of the mounting plate, and racks are connected to the tops of the half teeth in an engaged manner; moving plates are symmetrically arranged on the two sides of the device body. According to the filtering device for medical intermediate production, in the filtering process of medical intermediates, the filtering shell can shake left and right, the bottom of the filtering shell can be knocked, the filtering effect of the filtering shell is better, and the filtering speed is higher.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine production technology, specifically a filtration device for the production of pharmaceutical intermediates. Background Technology

[0002] Pharmaceutical intermediates refer to intermediate chemicals used in the synthesis of chemical drugs. They are fine chemical products and play a key role in the synthesis process of drugs, being one of the key steps in the gradual synthesis of drugs through a series of organic synthesis reactions.

[0003] Publication number CN208694415U discloses a filtration device for the production of pharmaceutical intermediates. A power switch shortens an electric telescopic rod, causing a locking block to move upwards and disengage from its locking groove. The locking block then moves to the top of the second housing. The doors on both the first and second housings are then opened, and the second slider is moved to the left, disengaging the locking block from the filter screen. The filter screen is then tilted upwards and removed from the second housing. This allows for quick and convenient disassembly and installation of the filter screen. However, this patent has the following problems in practical use:

[0004] When filtering pharmaceutical intermediates, the filter screen only moves up and down. During filtration, some of the material remains directly on the screen, making it difficult to apply vibration or tapping force, which reduces the filtering effect and slows down the filtering speed.

[0005] A filtration device for the production of pharmaceutical intermediates is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to provide a filtration device for the production of pharmaceutical intermediates, in order to solve the problem mentioned in the background art that when filtering pharmaceutical intermediates, the filter screen only moves up and down, and some of the filter material remains directly on the filter screen during filtration, making it difficult to apply vibration and impact force to the filter screen, thus affecting the filtration effect and reducing the filtration speed.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a filtration device for the production of pharmaceutical intermediates, comprising a device body and a door installed on the front of the device body;

[0008] The device body has a feed inlet installed on the top, a guide plate fixedly connected inside the device body, and a discharge outlet on one side of the device body.

[0009] Also includes:

[0010] The device body has a filter assembly inside. The filter assembly includes a mounting plate, which is L-shaped. A motor is mounted on the back of the mounting plate. A half tooth is rotatably connected to the front of the mounting plate, and a rack is meshed with the top of the half tooth.

[0011] The device body has symmetrical movable plates on both sides, and one movable plate is fixed to one side of the rack, while the other movable plate is fixedly connected to the device body with a first spring.

[0012] One side of the movable plate is symmetrically fixed with a limit rod, and the limit rod is slidably connected to one side of the device body. The other side of the movable plate is symmetrically fixed with an installation block, and a slider is slidably connected inside the installation block. A filter shell is fixedly connected between the sliders, and a filter screen is provided at the bottom of the filter shell.

[0013] Preferably, a support block is fixedly connected inside the main body of the device, and a second spring is fixedly connected to the top of the support block, and a moving block is fixedly connected to the top of the second spring.

[0014] Preferably, the bottom of the movable block is symmetrically fixed with a sliding rod, and the sliding rod can slide inside the support block. A movable piece is fixedly connected to one side of the movable block, and a striking piece is fixedly connected to the top of the movable piece.

[0015] Preferably, a circular block is fixedly connected to the front of the semi-tooth, and a pressing rod is fixedly connected to the bottom of the circular block, with the pressing rod abutting against the moving block.

[0016] Preferably, the slider is L-shaped, and the slider slides back and forth in the mounting block.

[0017] Preferably, a disassembly assembly is provided on one side of the movable plate. The disassembly assembly includes a third spring, and a pressing block is fixedly connected to one side of the third spring. A limit strip slides symmetrically inside the pressing block, and the limit strip is fixedly connected to the movable plate.

[0018] Preferably, the pressing block is symmetrically fixed with fixing blocks on its upper and lower sides, and a locking block is fixedly connected to one side of the fixing block, and the locking block is engaged with the slider.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This filtration device for pharmaceutical intermediate production, during the filtration process, not only allows the filter shell to sway left and right, but also allows the bottom of the filter shell to be struck, resulting in better filtration effect and faster filtration speed. The specific details are as follows:

[0020] 1. The raw material to be filtered is placed into the filter shell through the feed inlet. Then, the motor is started, causing the motor to drive the half-tooth to rotate. The half-tooth then drives the rack to move, which in turn drives the moving plate to move. The moving plate then drives the filter shell to move. Simultaneously, during the movement of the filter shell, the moving plate on the other side compresses the first spring. When the half-tooth rotates to a certain extent, its teeth disengage from the rack, causing the first spring to return. This resets the moving plate and filter shell, causing the filter shell to sway left and right to screen the raw material inside. The rotation of the half-tooth also drives the circular block to rotate, which in turn drives the extrusion rod to move in a circular motion. The extrusion rod then compresses the moving plate and filter shell. The moving block moves downwards and compresses the second spring. Simultaneously, the moving plate and the striking plate also move downwards with the moving block, causing the striking plate to move away from the bottom of the filter shell. When the squeezing rod reaches its moving position, it disengages from the moving block. At this point, the second spring rebounds, causing the moving plate and the striking plate to strike the filter screen at the bottom of the filter shell, further improving the filtration effect. When the squeezing rod reaches a certain position again, it will squeeze the moving block again, thus repeating the above actions. This allows the filter shell to not only sway left and right when screening materials, but also to strike the bottom of the filter shell, resulting in better filtration and faster speed.

[0021] 2. When it is necessary to disassemble, replace or clean the filter housing, press the pressing blocks on both sides at the same time. At this time, the pressing blocks move to the left and compress the third spring. The movement of the pressing blocks will drive the fixing block to move, and then the fixing block will drive the locking block to move. Then the locking block will disengage from the inside of the slider, thereby releasing the limit on the filter housing. At this time, the filter housing can be slid forward to slide out and disassemble, thus realizing the disassembly of the filter housing. Attached Figure Description

[0022] Figure 1 This is a front view structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the semi-tooth connection structure of this utility model;

[0026] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Device body; 101. Feed inlet; 102. Guide plate; 103. Discharge outlet; 2. Box door; 3. Filter assembly; 301. Mounting plate; 302. Motor; 303. Half tooth; 304. Rack; 305. Moving plate; 306. First spring; 307. Limiting rod; 308. Mounting block; 309. Sliding block; 310. Filter shell; 3101. Support block; 311. Second spring; 3111. Slide rod; 312. Moving block; 313. Round block; 3131. Pressing rod; 314. Moving piece; 315. Striking piece; 4. Disassembly assembly; 401. Third spring; 402. Pressing block; 403. Limiting strip; 404. Fixing block; 405. Locking block. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1 - Figure 5 The present invention provides the following technical solution:

[0030] A filtration device for producing pharmaceutical intermediates includes a device body 1 and a door 2 installed on the front of the device body 1. A feed inlet 101 is installed on the top of the device body 1, and a guide plate 102 is fixedly connected inside the device body 1. A discharge outlet 103 is opened on one side of the device body 1. A filter assembly 3 is provided inside the device body 1. The filter assembly 3 includes a mounting plate 301, which is L-shaped. A motor 302 is installed on the back of the mounting plate 301, and a semi-tooth 303 is rotatably connected to the front of the mounting plate 301. The top of the semi-tooth 303... A rack 304 is engaged with the device body 1; symmetrical movable plates 305 are provided on both sides of the device body 1, and one movable plate 305 is fixed to one side of the rack 304, while a first spring 306 is fixedly connected between the movable plate 305 and the device body 1 on the other side; a limit rod 307 is symmetrically fixed to one side of the movable plate 305 on the other side, and the limit rod 307 is slidably connected to one side of the device body 1; a mounting block 308 is symmetrically fixed to the other side of the movable plate 305, and a slider 309 is slidably connected inside the mounting block 308. Figure 2-4As shown, when it is necessary to filter the pharmaceutical intermediate, the raw material to be filtered is put into the filter shell 310 through the feed port 101. Then, the motor 302 is started, which drives the half tooth 303 to rotate. The half tooth 303 then drives the rack 304 to move. The rack 304 then drives the moving plate 305 to move. The moving plate 305 then drives the filter shell 310 to move. At the same time, during the movement of the filter shell 310, the moving plate 305 on the other side will compress the first spring 306. When the half tooth 303 is aligned to a certain extent, its teeth will disengage from the rack 304. At this time, the first spring 306 will rebound, which will reset the moving plate 305 and the filter shell 310. This causes the filter shell 310 to swing left and right to screen the raw material inside. The filter shell 310 is fixedly connected between the sliders 309, and a filter screen is provided at the bottom of the filter shell 310.

[0031] A support block 3101 is fixedly connected inside the main body 1. A second spring 311 is fixedly connected to the top of the support block 3101, and a moving block 312 is fixedly connected to the top of the second spring 311. A sliding rod 3111 is symmetrically fixed to the bottom of the moving block 312, and the sliding rod 3111 can slide inside the support block 3101. A round block 313 is fixedly connected to the front of the half tooth 303, and a pressing rod 3131 is fixedly connected to the bottom of the round block 313. The pressing rod 3131 abuts against the moving block 312. The slider 309 is L-shaped, and the slider 309 slides back and forth on the mounting block 308. A moving piece 314 is fixedly connected to one side of the moving block 312. Figure 3 , 4 As shown, during the alignment process of the half-tooth 303, the circular block 313 will rotate, and then the circular block 313 will drive the pressing rod 3131 to move in a circular motion. The pressing rod 3131 will then press the moving block 312, and the moving block 312 will move downward and compress the second spring 311. At the same time, the moving plate 314 and the striking plate 315 will also move downward with the moving block 312, so that the striking plate 315 moves away from the bottom of the filter shell 310. When the pressing rod 3131 reaches the moving position, it will disengage from the moving block 312, at which point the second spring 311 will return. The spring causes the moving plate 314 and the striking plate 315 to strike the filter screen at the bottom of the filter housing 310, thereby further improving the filtration effect of the filter screen. When the squeezing rod 3131 moves to a certain extent, it will squeeze the moving block 312 again, thus repeating the above actions. This allows the filter housing 310 to not only sway left and right when screening materials, but also to strike the bottom of the filter housing 310, resulting in better filtration effect and faster speed. The striking plate 315 is fixedly connected to the top of the moving plate 314.

[0032] A disassembly assembly 4 is provided on one side of the movable plate 305. The disassembly assembly 4 includes a third spring 401, and a pressing block 402 is fixedly connected to one side of the third spring 401. A limit strip 403 slides symmetrically inside the pressing block 402, and the limit strip 403 is fixedly connected to the movable plate 305. Fixing blocks 404 are symmetrically fixed above and below the pressing block 402, and a locking block 405 is fixedly connected to one side of the fixing block 404. Figure 5 As shown, when the filter housing 310 needs to be disassembled, replaced, or cleaned, the pressing blocks 402 on both sides can be pressed simultaneously. At this time, the pressing blocks 402 move to the left and compress the third spring 401. Simultaneously, the movement of the pressing blocks 402 will drive the fixing block 404 to move, and then the fixing block 404 will drive the locking block 405 to move. Then the locking block 405 will disengage from the inside of the slider 309, thereby releasing the restriction on the filter housing 310. At this time, the filter housing 310 can be slid forward to slide out and disassemble, thus realizing the disassembly of the filter housing 310. The locking block 405 is engaged with the slider 309.

[0033] Working principle: Before using this filtration device for pharmaceutical intermediate production, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 5As shown, firstly, when filtering the pharmaceutical intermediate is required, the raw material to be filtered is placed into the filter shell 310 through the feed inlet 101. Then, the motor 302 is started, causing the motor 302 to drive the half-tooth 303 to rotate. The half-tooth 303 then drives the rack 304 to move, which in turn drives the moving plate 305 to move. The moving plate 305 then drives the filter shell 310 to move. Simultaneously, during the movement of the filter shell 310, the moving plate 305 on the other side compresses the first spring 306. When the half-tooth 303 is aligned to a certain extent, its teeth will disengage from the rack 304. At this time, the first spring 306 rebounds, causing the moving plate 305 and the filter shell 310 to reset. This causes the filter shell 310 to sway left and right to sieve the raw material inside. Secondly, during the alignment process, the half-tooth 303 drives the round block 313 to rotate, which in turn drives the extrusion rod 3. The filter housing 310 moves in a circular motion. The pressing rod 3131 then presses the moving block 312, causing the moving block 312 to move downwards and compress the second spring 311. Simultaneously, the moving plate 314 and the striking plate 315 also move downwards with the moving block 312, causing the striking plate 315 to move away from the bottom of the filter housing 310. When the pressing rod 3131 reaches its moving position, it disengages from the moving block 312. At this point, the second spring 311 rebounds, causing the moving plate 314 and the striking plate 315 to strike the filter screen at the bottom of the filter housing 310, further improving the filtration effect of the filter screen. When the pressing rod 3131 moves to a certain position again, it will press the moving block 312 again, thus repeating the above actions. This allows the filter housing 310 to not only sway left and right when screening materials, but also to strike the bottom of the filter housing 310, resulting in better filtration effect and faster speed.

[0034] When the filter housing 310 needs to be disassembled, replaced, or cleaned, the pressing blocks 402 on both sides can be pressed simultaneously. At this time, the pressing blocks 402 move to the left and compress the third spring 401. Simultaneously, the movement of the pressing blocks 402 will drive the fixing block 404 to move. Then, the fixing block 404 will drive the locking block 405 to move. Then, the locking block 405 will disengage from the inside of the slider 309, thereby releasing the restriction on the filter housing 310. At this time, the filter housing 310 can be slid forward to slide out and disassemble, thus realizing the disassembly of the filter housing 310.

[0035] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A filtration device for the production of pharmaceutical intermediates, comprising a device body (1) and a door (2) installed on the front of the device body (1); The device body (1) has a feed inlet (101) installed on the top, a guide plate (102) fixedly connected inside the device body (1), and a discharge port (103) opened on one side of the device body (1). Its features are, Also includes: The device body (1) is provided with a filter assembly (3) inside. The filter assembly (3) includes a mounting plate (301), which is L-shaped. A motor (302) is mounted on the back of the mounting plate (301). A half tooth (303) is rotatably connected to the front of the mounting plate (301), and a rack (304) is meshed with the top of the half tooth (303). The device body (1) is provided with movable plates (305) symmetrically on both sides, and one movable plate (305) is fixed to one side of the rack (304), and the other movable plate (305) is fixedly connected to the device body (1) with a first spring (306). Among them, a limiting rod (307) is symmetrically fixed on one side of the movable plate (305) on the other side, and the limiting rod (307) is slidably connected to one side of the device body (1). A mounting block (308) is symmetrically fixed on the other side of the movable plate (305), and a slider (309) is slidably connected inside the mounting block (308). A filter shell (310) is fixedly connected between the sliders (309), and a filter screen is provided at the bottom of the filter shell (310).

2. The filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The device body (1) is fixedly connected to a support block (3101), and a second spring (311) is fixedly connected to the top of the support block (3101), and a moving block (312) is fixedly connected to the top of the second spring (311).

3. A filtration device for producing pharmaceutical intermediates according to claim 2, characterized in that: The bottom of the movable block (312) is symmetrically fixed with a sliding rod (3111), and the sliding rod (3111) can slide inside the support block (3101).

4. A filtration device for producing pharmaceutical intermediates according to claim 2, characterized in that: A circular block (313) is fixedly connected to the front of the half tooth (303), and a pressing rod (3131) is fixedly connected to the bottom of the circular block (313), and the pressing rod (3131) abuts against the moving block (312).

5. A filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The slider (309) is L-shaped, and the slider (309) slides back and forth in the opposite direction of the mounting block (308). A movable piece (314) is fixedly connected to one side of the movable block (312), and a striking piece (315) is fixedly connected to the top of the movable piece (314).

6. A filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The movable plate (305) has a disassembly assembly (4) on one side. The disassembly assembly (4) includes a third spring (401), and a pressing block (402) is fixedly connected to one side of the third spring (401). A limit strip (403) slides symmetrically inside the pressing block (402), and the limit strip (403) is fixedly connected to the movable plate (305).

7. A filtration device for producing pharmaceutical intermediates according to claim 6, characterized in that: The pressing block (402) is symmetrically fixed with fixing blocks (404) on its upper and lower sides, and a locking block (405) is fixedly connected to one side of the fixing block (404), and the locking block (405) is engaged with the slider (309).

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