Hot air filtering device for medicine production

By incorporating a filter box and positioning blocks into the hot air system, the problem of air impurities contaminating the hot air device is solved, extending the service life of the heating element and simplifying the maintenance process of the filter.

CN224100262UActive Publication Date: 2026-04-10SHANGHAI FUDAN FORWARD PHARM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The existing hot air system for drying drugs does not filter outside air, causing dust and impurities in the air to contaminate the hot air device and affect its performance.

Method used

A filter box is installed in the hot air system, located before the heating box. The filter box filters the air through a filter screen, and the positioning blocks facilitate the disassembly and assembly of the screen frame for easy maintenance.

Benefits of technology

It extends the service life of the heating element, improves the practicality and ease of maintenance of the device, and prevents impurities from adhering to the hot air device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of pharmaceutical engineering, and particularly discloses a hot air filtering device for medicine production, which comprises a tank body, an air inlet is arranged on the side edge of the tank body, a heating box is fixed outside the air inlet, a heating pipe is arranged inside the heating box, and one side of the heating box far away from the tank body is connected with a filtering box. A mounting slot is formed in the upper part of the filter box, a connecting port is formed in the filter box, a screen frame is inserted into the mounting slot, a filter screen is arranged in the screen frame, a positioning slot is formed in the side edge of the screen frame, and the filter box is connected with an external fan by arranging the connecting port; a movable cylinder is arranged on the side edge of the filter box, a movable block is slidably connected into the movable cylinder, a connecting rod and a positioning insertion block are fixed to the two ends of the movable block respectively, and the positioning insertion block is inserted into the positioning insertion groove to fix the screen frame; the screen frame is fixed through the positioning insertion blocks, and when the screen frame needs to be dismantled to maintain the filter screen, only the positioning insertion blocks need to be pulled out of the positioning insertion grooves, and the screen frame can be pulled out of the filter box after the positioning insertion blocks are pulled out.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pharmaceutical engineering technology, concretely to a hot air filtering device for medicine production. BACKGROUND

[0002] Solid medicine refers to medicine whose physical state is solid, and solid medicine is usually made into specific dosage forms through preparation process to facilitate patient taking and absorption of medicine.

[0003] At present, the hot air system for medicine drying does not filter external air, so that dust and impurities in the air will pollute medicine during drying, and therefore an air filter is usually arranged to filter impurities in the air, such as the Chinese utility model patent with the publication number CN221744549U, which specifically discloses a hot air filtering system for solid medicine production.

[0004] However, it is found in actual use of the above hot air filtering device that the filtering device is arranged at the rear end of the hot air device, which causes external air to pass through the hot air device first and then be filtered by the filtering device, so that impurities in the air are easily attached to the hot air device, which easily affects the performance of the hot air device in long-term use. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a hot air filtering device for medicine production to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a hot air filtering device for medicine production, comprising a tank body, an air inlet is formed in the side of the tank body, a heating box is fixed outside the air inlet, a heating pipe is arranged inside the heating box, and a filter box is connected to the side of the heating box away from the tank body. The heating pipe in the heating box is used to generate heat.

[0007] An installation slot is formed above the filter box, a connecting port is arranged on the filter box, a mesh frame is inserted into the installation slot, a filter screen is arranged in the mesh frame, and a positioning slot is formed in the side of the mesh frame. The connecting port is connected to an external fan, and the filter screen filters the air blown by the fan.

[0008] An activity cylinder is arranged on the side of the filter box, an activity block is slidably connected in the activity cylinder, a connecting rod and a positioning plug are respectively fixed at both ends of the activity block, the connecting rod passes through the activity cylinder and is connected with an auxiliary pull block, the positioning plug is inserted into the positioning slot to fix the mesh frame, and a spring is sleeved between the connecting rod and the activity cylinder.

[0009] The mesh frame is fixed by the positioning plug, and when the filter screen needs to be maintained by removing the mesh frame, the positioning plug is only pulled out of the positioning slot, and the mesh frame can be pulled out of the filter box after being pulled out, which is simple and easy to understand.

[0010] As the utility model is preferred, the tank body upper portion is provided with an exhaust port, the exhaust port is provided with an exhaust valve, and the tank body lower portion is provided with a discharge port. The exhaust port can be used to remove excess heat in the tank body, and the discharge port is used to discharge materials.

[0011] As the utility model is preferred, the tank body middle portion is fixed with a stirring cylinder, the stirring cylinder upper portion is provided with a feeding port, the feeding port penetrates the tank body, the stirring cylinder outer side is provided with a plurality of air holes, and the stirring cylinder lower portion is provided with a discharging port.

[0012] The feeding port is used to add solid medicines, the air holes are used to facilitate hot air to enter the stirring cylinder, and the discharging port is used to discharge materials stirred in the stirring cylinder.

[0013] As the utility model is preferred, the feeding port is threadedly connected with a feeding cover, and the feeding cover is used to seal the feeding port.

[0014] As the utility model is preferred, the stirring cylinder interior is rotationally connected with a rotating rod, the rotating rod is provided with a screw flight, the tank body upper portion middle portion is fixed with a driving motor, and the rotating rod top end penetrates the stirring cylinder and the tank body and is connected with the driving shaft of the driving motor. The driving motor drives the rotating rod to continuously and alternately rotate, so that the screw flight tumbles the solid medicines.

[0015] As the utility model is preferred, the net frame upper portion is provided with a handle, and the net frame lower portion is provided with an inclined angle. The handle is mainly used to facilitate the net frame to be taken, and the inclined angle is used to be inserted into the net frame, the inclined angle abuts against the positioning insert block, and the positioning insert block is squeezed backward.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The device is provided with the filtering box at the rear end of the heating box. In use, the external air is filtered by the filtering box first, and then the hot air in the heating box is blown in, so as to prolong the service life of the heating pipe. The positioning insert block is arranged to fix the net frame, so that the net frame is convenient to disassemble and assemble in the later period, thereby facilitating the maintenance of the filter screen and improving the practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a tank body internal structure schematic view of the utility model;

[0020] Figure 3 It is a filtering box three-dimensional structure schematic view of the utility model;

[0021] Figure 4 It is a filtering box partial sectional view structure schematic view of the utility model;

[0022] Figure 5 The utility model discloses a net frame structure schematic diagram.

[0023] In the drawing: 1, tank body;101, air inlet;102, exhaust port;103, discharge port;2, heating box;201, heating pipe;3, filter box;301, installation slot;302, connecting port;4, net frame;401, filter screen;402, positioning slot;403, bevel;5, movable cylinder;501, movable block;502, connecting rod;503, spring;504, positioning plug block;505, auxiliary pull block;6, stirring cylinder;601, charging port;602, air hole;603, discharge port;604, cover plate;7, rotating rod;701, auger piece;702, drive motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the utility model.

[0025] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "vertical", "upper", "lower", "horizontal" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0026] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Please refer to Figures 1-5The utility model provides a technical scheme: a hot -blast filtering device for medicine production, including jar body 1, the side of jar body 1 is equipped with air inlet 101, and the outside fixed heating box 2 of air inlet 101 is provided with heating pipe 201 in heating box 2, and the side away from jar body 1 of heating box 2 is connected with filter box 3.Heating pipe 201 in heating box 2 is used to generate heat.

[0028] The installation slot 301 is formed in the upper portion of the filter box 3, and the connecting port 302 is arranged on the filter box 3. The net frame 4 is inserted into the installation slot 301, and the filter screen 401 is arranged in the net frame 4. The positioning slot 402 is formed in the side of the net frame 4. The external fan is connected through the connecting port 302, and the filter screen 401 can filter the air blown by the fan.

[0029] The movable cylinder 5 is arranged on the side of the filter box 3, and the movable block 501 is slidably connected in the movable cylinder 5. The connecting rod 502 and the positioning plug 504 are fixedly arranged at the two ends of the movable block 501. The connecting rod 502 penetrates through the movable cylinder 5 and is connected with the auxiliary pull block 505. The positioning plug 504 is inserted into the positioning slot 402 to fix the net frame 4. The spring 503 is sleeved between the connecting rod 502 and the movable cylinder 5.

[0030] The net frame 4 is fixed by the positioning plug 504. When the filter screen 401 needs to be maintained by removing the net frame 4, the positioning plug 504 is pulled out of the positioning slot 402. After pulling out, the net frame 4 can be pulled out of the filter box 3, which is simple and easy to understand.

[0031] Further, the exhaust port 102 is arranged above the jar body 1, and the exhaust valve is arranged on the exhaust port 102. The discharge port 103 is arranged below the jar body 1. The exhaust port 102 can be used to remove the excess heater in the jar body 1, and the discharge port 103 is used to discharge the material.

[0032] Further, the stirring cylinder 6 is fixed in the middle of the jar body 1. The feeding port 601 is arranged above the stirring cylinder 6 and penetrates through the jar body 1. The air holes 602 are arranged on the outer side of the stirring cylinder 6. The discharge port 603 is arranged below the stirring cylinder 6.

[0033] The feeding port 601 is used for adding solid medicine. The air holes 602 are used for facilitating the hot air to enter the stirring cylinder 6. The discharge port 603 is used for discharging the material stirred in the stirring cylinder 6.

[0034] Further, the feeding cover is threadedly connected to the feeding port 601. The feeding cover is arranged to seal the feeding port 601.

[0035] Further, the stirring cylinder 6 is internally connected with a rotating rod 7, the rotating rod 7 is provided with a auger blade 701, the middle position of the upper part of the tank body 1 is fixed with a driving motor 702, the top end of the rotating rod 7 penetrates the stirring cylinder 6 and the tank body 1 and is connected with the driving shaft of the driving motor 702. The driving motor 702 drives the rotating rod 7 to continuously rotate in the forward and reverse directions, so that the auger blade rolls the solid medicine.

[0036] Further, the net frame 4 is provided with a handle above, and is provided with an inclined angle 403 below, the handle is mainly convenient for taking the net frame 4, and the inclined angle 403 is used for inserting the net frame 4, the inclined angle 403 abuts against the positioning plug 504 and extrudes the positioning plug 504, so that the positioning plug 504 is extruded backward.

[0037] In summary, in use, the connecting port 302 is connected with an external fan, then the cover plate 604 is opened, then the solid medicine is added into the stirring cylinder 6, then the driving motor 702 and the heating pipe 201 are started, so that the heating pipe 201 generates heat, the external fan blows air to the filter box 3, so that the external air passes through the filter screen 401 of the net frame 4, the air is filtered by the filter screen 401, and after the filtration, the air enters the heating box 2, the hot air is blown into the tank body 1 and enters the stirring cylinder 6 through the air holes 602, the medicine is dried, the driving motor 702 drives the rotating rod 7 to rotate, the auger blade 701 on the rotating rod 7 continuously rolls the medicine, the drying effect is improved, the solid medicine slowly falls through the discharge port 603 on the stirring cylinder 6 along with the rotation of the auger blade 701, and finally is discharged from the discharge port 103.

[0038] When the filter screen 401 needs to be removed and maintained, the auxiliary pull block 505 is pulled, the auxiliary pull block 505 drives the movable block 501 to move in the movable cylinder 5 through the connecting rod 502, the movable block 501 extrudes the spring 503, and the movable block 501 drives the positioning plug 504 to exit from the positioning slot 402 of the net frame 4, then the net frame 4 can be pulled out of the filter box 3, so that the filter screen 401 is maintained. When installing, the net frame 4 is directly inserted into the installation slot 301, the inclined angle 403 at the bottom of the net frame 4 extrudes the positioning plug 504, the positioning plug 504 drives the movable block 501 to continue extruding the spring 503, when the net frame 4 is inserted into the bottom, the positioning plug 504 is simultaneously moved to the positioning slot 402, then the spring 503 is used to push the movable block 501 back, so that the movable block 501 drives the positioning plug 504 to be reinserted into the positioning slot 402, and the installation is completed.

[0039] It is worth noting that: the whole device is controlled by the total control button, since the control button matched device is a commonly used device, which belongs to the existing mature technology, the electrical connection relationship and the specific circuit structure are not described here.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. 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The hot air filtering device for pharmaceutical production according to claim 1, characterized in that: ​ 3. The hot air filtering device for pharmaceutical production according to claim 1, characterized in that: ​ 4. The hot air filtering device for pharmaceutical production according to claim 3, characterized in that: ​ 5. The hot air filtering device for pharmaceutical production according to claim 3, characterized in that: ​ 6. The hot air filtering device for pharmaceutical production according to claim 1, characterized in that: ​

Citation Information

Patent Citations

  • Hot air filtering system for solid medicine production

    CN221744549U