Filtering clamp for pharmaceutical intermediates
By simplifying the hydraulic rod push plate extrusion assembly and the removable filter screen design, the problem of cumbersome operation of existing pharmaceutical intermediate filter clamps is solved, and a highly efficient filtration and cleaning process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAOWEI LIANZHONG BIOMEDICAL TECH (TIANJIN) CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-09
AI Technical Summary
Existing pharmaceutical intermediate filter clamps require multiple hydraulic rods and motors to operate, resulting in cumbersome operation and low efficiency.
A pharmaceutical intermediate filter clip was designed, which uses a hydraulic rod to control the push plate extrusion assembly, combined with a detachable filter screen and a simplified extrusion structure, to achieve a convenient filtration and cleaning process.
It improves filtration efficiency, simplifies operation procedures, reduces equipment complexity, and increases work efficiency.
Smart Images

Figure CN224331598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter clip technology, specifically a filter clip for pharmaceutical intermediates. Background Technology
[0002] Pharmaceutical intermediates are essentially chemical raw materials or products used in drug synthesis processes. These chemical products do not require a drug production license and can be produced in ordinary chemical plants. As long as they meet certain standards, they can be used in drug synthesis. Many of these are liquid pharmaceutical intermediates. In routine raw material drug production, the drug components need to be separated from the medicinal materials through reaction vessels and extraction devices. Then, they are filtered through filter clips to separate the drug solution from the waste residue. Current filtration mechanisms use simple devices such as filter cloths. As the filtration process progresses, the waste residue gradually clogs the filter cloths and filter elements, leading to reduced filtration efficiency. Furthermore, the waste residue often contains a large amount of drug solution, which can easily result in incomplete drug-liquid separation. Therefore, designing a highly efficient filter clip is urgently needed.
[0003] Chinese utility model CN221155546U describes a pharmaceutical intermediate filter clip, which is designed to automatically discharge the filter clip. The principle is to use a hydraulic rod to push the pressure block to squeeze and filter the pharmaceutical intermediate. Finally, the hydraulic rod drives the moving block to move, which drives the rack and gear to adhere and rotate the filter screen. Finally, the motor drives the lead screw to rotate and push the filter screen to push the residue out of the box for discharge.
[0004] However, existing devices require multiple hydraulic rods and motors to work together to complete the extrusion filtration and material discharge, making operation cumbersome and resulting in poor work efficiency. Therefore, a more convenient and efficient method was designed to address the aforementioned problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a pharmaceutical intermediate filter clip, which has the advantages of convenient operation and higher efficiency during use, and solves the problems of cumbersome operation and low efficiency of existing devices.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical intermediate filter clip, comprising: a base with a collection box at its top; a vertical plate disposed at the top of the base; and a pressing assembly disposed on one side of the vertical plate, the pressing assembly comprising: a housing disposed on one side of the vertical plate; a filter screen disposed at the bottom of the housing; a hydraulic rod with one end penetrating through the vertical plate and fixedly connected to the vertical plate; a push plate disposed inside the housing and connected to the output shaft of the hydraulic rod; a sliding groove formed on the inner side wall of the housing; a baffle disposed inside the housing; and protrusions disposed on both sides of the baffle and slidably connected to the sliding groove.
[0009] In some embodiments, the extrusion assembly further includes a through groove formed on the outer side wall of the baffle.
[0010] In some embodiments, the extrusion assembly further includes: balls disposed on one side of the protrusion.
[0011] In some embodiments, the extrusion assembly further includes: a cover rotatably disposed on the top of the housing; a hook rotatably disposed on the front surface of the cover; and a protrusion disposed on the outer side wall of the housing.
[0012] In some embodiments, the filter screen is detachably connected to the housing.
[0013] In some embodiments, the filter screen is provided with a disassembly assembly, the disassembly assembly comprising: a collar disposed on the outer side wall of the housing; a top end of a pole penetrating the filter screen; a base plate disposed at the bottom of the pole; and a spring sleeved on the outer side of the pole, with both ends connected to the base plate and the filter screen.
[0014] In some embodiments, the disassembly assembly further includes a cone disposed at the top of the pole.
[0015] In some embodiments, the disassembly assembly further includes a handle disposed on one side of the filter.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides a pharmaceutical intermediate filter clip, which has the following beneficial effects:
[0018] 1. This filter clamp, the extrusion assembly controls the push plate to move towards the baffle via a hydraulic rod, which can extrude the pharmaceutical intermediates inside the shell, thereby filtering out the water. Finally, the internal residue can be cleaned by simply pulling out the baffle. Compared with existing devices, it is more convenient and efficient to operate.
[0019] 2. This filter clip's disassembly assembly, with its uprights and collar design, allows for the installation and removal of the filter screen, making it easy to remove and clean it. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model;
[0022] Figure 3 This is a schematic diagram of the filter screen extraction structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the connection between the upright and the filter screen of this utility model.
[0024] In the diagram: 11. Base plate; 12. Collection box; 13. Vertical plate;
[0025] 2. Extrusion assembly; 21. Housing; 22. Filter screen; 23. Hydraulic rod; 24. Push plate; 25. Slide groove; 26. Baffle; 261. Through groove; 27. Raised bar; 271. Ball bearing; 28. Cover; 29. Hook; 291. Protrusion;
[0026] 3. Disassembly components; 31. Collar; 32. Upright pole; 33. Base plate; 34. Spring; 35. Cone; 36. Handle. Detailed Implementation
[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0028] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0029] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0030] In related technologies, the principle involves using hydraulic rods to push a pressure block to squeeze and filter pharmaceutical intermediates. Then, the hydraulic rods move a moving block, which in turn drives a rack and pinion to rotate the filter screen. Finally, a motor drives a lead screw to move the filter screen, pushing the residue out of the chamber for unloading. However, existing devices require multiple hydraulic rods and motors to complete the squeezing, filtering, and unloading processes, making operation cumbersome and inefficient.
[0031] To address some of the problems in related technologies, this application provides a pharmaceutical intermediate filter clip. When filtering pharmaceutical intermediates is required, the intermediate is first added into the housing 21. At this time, the filter screen 22 can filter out the water and allow it to flow into the collection box 12. Simultaneously, the hydraulic rod 23 can be connected to an external power source and push the push plate 24 to move inside the housing 21, squeezing the pharmaceutical intermediate inside and squeezing out the water. This process is repeated multiple times until most of the water is squeezed out. Then, the baffle 26 can be pulled upwards, and the protrusion 27 slides inside the groove 25, causing the baffle 26 to separate from the housing 21. Controlling the push plate 24 to move can push out the residue inside the housing 21 and allow it to fall into the collection box.
[0032] This application is described below with reference to the accompanying drawings and specific embodiments:
[0033] This application provides a pharmaceutical intermediate filter clip, comprising: a base 11 with a collection box 12 disposed on its top; a vertical plate 13 disposed on the top of the base 11; and a compression assembly 2 disposed on one side of the vertical plate 13, the compression assembly 2 comprising: a housing 21 disposed on one side of the vertical plate 13; a filter screen 22 disposed at the bottom of the housing 21; a hydraulic rod 23 having one end passing through the vertical plate 13 and fixedly connected to the vertical plate 13; a push plate 24 disposed inside the housing 21 and connected to the output shaft of the hydraulic rod 23; a sliding groove 25 formed on the inner side wall of the housing 21; a baffle 26 disposed inside the housing 21; and protrusions 27 disposed on both sides of the baffle 26 and slidably connected to the sliding groove 25.
[0034] When filtering pharmaceutical intermediates during use, first add them into the housing 21. Then, the filter screen 22 can filter out the water and let it flow into the collection box 12. At the same time, the hydraulic rod 23 can be connected to an external power source and push the push plate 24 to move inside the housing 21, squeezing the pharmaceutical intermediates inside and squeezing out the water. Repeat this process several times until most of the water is squeezed out. Then, the baffle 26 can be pulled upwards, and the protrusion 27 slides inside the groove 25, causing the baffle 26 to separate from the housing 21. At this point, controlling the push plate 24 to move can push out the residue inside the housing 21 and let it fall into the collection box.
[0035] In some embodiments, the extrusion assembly 2 further includes a through groove 261 formed on the outer side wall of the baffle 26.
[0036] The design of the through slot 261 makes it easy to insert a finger, thereby better pulling the baffle 26 upward.
[0037] In some embodiments, the extrusion assembly 2 further includes a ball bearing 271 disposed on one side of the protrusion 27.
[0038] The design of the ball bearing 271 during use reduces friction when the convex strip 27 moves from inside the groove 25, resulting in smoother sliding.
[0039] In some embodiments, the extrusion assembly 2 further includes: a cover 28 rotatably disposed on the top of the housing 21; a hook 29 rotatably disposed on the front surface of the cover 28; and a protrusion 291 disposed on the outer side wall of the housing 21.
[0040] When using the pharmaceutical intermediate, simply rotate the cap 28 to seal the top of the shell 21, and rotate the hook 29 to connect with the protrusion 291 to stabilize the position of the cap 28. This will effectively control the splashing of the liquid medicine during compression.
[0041] In some embodiments, the filter 22 is detachably connected to the housing 21.
[0042] During use, the filter screen 22 can be pulled apart from the housing 21 through the detachable connection to achieve the purpose of disassembly. The filter screen 22 can then be cleaned to avoid clogging and affecting the filtration effect.
[0043] In some embodiments, the filter screen 22 is provided with a disassembly assembly 3, the disassembly assembly 3 including: a collar 31 disposed on the outer side wall of the housing 21; a top end of a vertical rod 32 penetrating the filter screen 22; a base plate 33 disposed at the bottom of the vertical rod 32; and a spring 34 sleeved on the outer side of the vertical rod 32, with both ends connected to the base plate 33 and the filter screen 22.
[0044] When installing the filter screen 22, first pull the base plate 33 to stretch the spring 34, then insert one end of the filter screen 22 into the housing 21 until the upright 32 is aligned with the collar 31. Then release the base plate 33 and the spring 34 will rebound and pull the base plate 33 upward, so that the upright 32 is inserted into the collar 31 and fixed.
[0045] In some embodiments, the disassembly assembly 3 further includes a cone 35 disposed at the top end of the upright 32.
[0046] When in use, the pointed tip of the cone 35 makes it easier to insert the upright 32 into the collar 31.
[0047] In some embodiments, the disassembly assembly 3 further includes a handle 36 disposed on one side of the filter 22.
[0048] The handle 36 is designed for easy gripping, making it more convenient to pull the filter 22 away from the housing 21.
[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0050] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A medical intermediate filtering clamp, comprising: a base (11) provided with a collecting box (12) on the top; a vertical plate (13) provided on the top of the base (11); characterized in that one side of the vertical plate (13) is provided with a squeezing assembly (2), the squeezing assembly (2) comprising: a shell (21) provided on one side of the vertical plate (13); a filter screen (22) provided at the bottom of the shell (21); a hydraulic rod (23) penetrating through one end of the vertical plate (13) and fixedly connected with the vertical plate (13); a push plate (24) provided inside the shell (21) and connected with the output shaft of the hydraulic rod (23); a sliding groove (25) opened in the inner side wall of the shell (21); a baffle (26) provided inside the shell (21); a convex strip (27) provided on both sides of the baffle (26) and slidingly connected with the sliding groove (25).
2. A filter clamp for pharmaceutical intermediates according to claim 1, characterised in that: The squeezing assembly (2) further comprises: a through groove (261) opened in the outer side wall of the baffle (26).
3. A filter clamp for pharmaceutical intermediates according to claim 1, characterized in that: The squeezing assembly (2) further comprises: a ball (271) provided on one side of the convex strip (27).
4. The filter clamp for pharmaceutical intermediates according to claim 1, characterized in that: The squeezing assembly (2) further comprises: a lid (28) rotatably provided on the top of the shell (21); a hook (29) rotatably provided on the front surface of the lid (28); a convex block (291) provided on the outer side wall of the shell (21).
5. The filter clamp for pharmaceutical intermediates according to claim 1, characterized in that: The filter screen (22) is detachably connected with the shell (21).
6. A filter clamp for pharmaceutical intermediates according to claim 5, characterised in that: A disassembly assembly (3) is provided on the filter screen (22), the disassembly assembly (3) comprising: a sleeve ring (31) provided on the outer side wall of the shell (21); a vertical rod (32) penetrating through the top end of the filter screen (22); a bottom plate (33) provided at the bottom of the vertical rod (32); a spring (34) sleeved on the outer side of the vertical rod (32) and connected with the bottom plate (33) and the filter screen (22) at both ends.
7. A filter clamp for pharmaceutical intermediates according to claim 6, characterised in that: The disassembly assembly (3) further comprises: a cone (35) provided on the top end of the vertical rod (32).
8. A filter clamp for pharmaceutical intermediates according to claim 6, characterized in that: The disassembly assembly (3) further comprises: a handle (36) provided on one side of the filter screen (22).