Air exchange device for solid preparation workshop
By introducing driving components and brushes that automatically clean up dust in the air exchange device in the solid preparation workshop, the problem of frequent blockage of the filter in the existing air exchange equipment is solved, and the convenience of long-term use and maintenance of the filter is achieved.
Patent Information
- Application Number
- CN202421379291.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-17
AI Technical Summary
After the existing air change equipment is used for a period of time, a large amount of dust accumulates on the surface of the filter screen, and the filter screen needs to be replaced frequently to avoid clogging, which increases the burden and trouble of use.
A solid preparation workshop air change device is designed, including a ventilation box, mounting cover, air inlet duct, filter and drive components. The drive component drives the brush to move vertically to clean the dust on the surface of the filter screen. The dust is discharged through the dust exhaust channel, avoiding the need to frequently replace the filter screen.
By automatically cleaning the dust on the filter, the service life of the filter is extended, the frequency of replacing the filter is reduced, and the difficulty and cost of use and maintenance are reduced.
Smart Images
Figure CN222617153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air purification, in particular to an air exchange device for a solid preparation workshop. Background Art
[0002] Solid preparations generally refer to solid drug forms used for oral administration in the pharmaceutical industry, including tablets, capsules, granules, powders, granules and granules, etc. These preparations may involve a series of process steps in the production process, such as mixing, granulation, tableting, coating, drying, etc.
[0003] There are solid pollutants such as dust and particulate matter in the pharmaceutical workshop, which may affect drug production and human health. Through air exchange, these solid pollutants can be discharged from the workshop to keep the air clean.
[0004] However, after the existing air exchange equipment has been used for a period of time, a large amount of dust accumulates on the surface of the filter screen, and the filter screen needs to be frequently replaced to avoid clogging, which increases the burden of use and is relatively troublesome. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] In view of the deficiencies in the prior art, the utility model provides a ventilation device for a solid preparation workshop, which solves the problems raised in the above-mentioned background technology.
[0007] (II) Technical solution
[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a ventilation device for a solid preparation workshop, comprising a ventilation box, a mounting cover fixedly installed on one side of the ventilation box, and an air inlet duct connected to the other side of the ventilation box, a draft fan fixedly installed on the mounting cover away from the side of the ventilation box, a filter screen detachably installed on the other side of the mounting cover, a brush is arranged inside the ventilation box, the brush is in contact with the surface of the filter screen, a driving assembly is arranged on the top of the ventilation box, the driving assembly drives the brush to move vertically to clean the dust on the surface of the filter screen.
[0009] Preferably, the driving assembly includes a bracket fixed to the top of the ventilation box, a motor fixed to the top of the bracket, and a screw fixed to the output end of the motor. A traction strip is threadedly sleeved on the screw. Two symmetrically distributed guide rods are fixedly connected to the bottom of the traction strip. The lower end of the guide rod is movably arranged to penetrate the top wall of the ventilation box. The lower end of the guide rod extends into the ventilation box and is fixedly connected to the brush.
[0010] Preferably, a groove is provided on a side wall of the mounting cover close to the ventilation box, and the filter is arranged in the groove.
[0011] Preferably, the side wall of the mounting cover close to the ventilation box has two slots, and the inside of the slots is slidably connected with a retaining bar, through which the filter can be limited.
[0012] Preferably, two guide bars distributed up and down are fixedly connected inside the slot, and sliding openings are provided at both upper and lower ends of the blocking bar, and the blocking bar is slidably arranged on the guide bar through the sliding openings.
[0013] Preferably, a dust exhaust passage is provided at the bottom of the ventilation box, and the dust exhaust passage is located below the filter.
[0014] (III) Beneficial effects
[0015] The utility model provides a ventilation device for a solid preparation workshop, which has the following beneficial effects:
[0016] 1. In the utility model, by starting the motor, the screw is driven to rotate, the screw drives the traction bar to move vertically, and the traction bar drives the brush to move vertically through the guide rod, so that the brush cleans the dust on the surface of the filter. Under the action of gravity, the dust is discharged from the ventilation box through the dust exhaust channel. A dust collecting box can be set at the bottom of the dust exhaust channel to collect dust. This method does not require frequent replacement of the filter.
[0017] 2. In the utility model, the installation cover and the ventilation box are connected by plug-in connection, and the installation cover and the end of the ventilation box are locked by bolts. When removing the filter, the baffle is pulled away from the filter to separate the baffle from the filter, thereby removing the filter from the groove and cleaning the filter. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a front perspective structural diagram of a solid preparation workshop air exchange device proposed by the utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of a solid preparation workshop air exchange device in a disassembled state proposed by the utility model;
[0020] Figure 3 for Figure 2 A magnified structural diagram;
[0021] Figure 4 This is a cross-sectional structural diagram of a ventilation device for a solid preparation workshop proposed by the utility model;
[0022] Figure 5 for Figure 4 Enlarged structural diagram at point B.
[0023] In the figure: 1. ventilation box; 2. mounting cover; 201. groove; 202. slot; 3. air inlet duct; 4. induced draft fan; 5. filter; 6. baffle bar; 7. guide bar; 8. drive assembly; 81. bracket; 82. motor; 83. screw rod; 84. traction bar; 85. guide rod; 9. brush; 10. dust exhaust channel. DETAILED DESCRIPTION
[0024] 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 of the embodiments.
[0025] See also Figures 1 to 5 The utility model provides a technical solution: a ventilation device for a solid preparation workshop, comprising a ventilation box 1, a mounting cover 2 fixedly mounted on one side of the ventilation box 1, and an air inlet duct 3 connected to the other side of the ventilation box 1, a induced draft fan 4 is fixedly mounted on the side of the mounting cover 2 away from the ventilation box 1, a filter screen 5 is detachably mounted on the other side of the mounting cover 2, a brush 9 is arranged inside the ventilation box 1, the brush 9 is in contact with the surface of the filter screen 5, a driving assembly 8 is arranged on the top of the ventilation box 1, the driving assembly 8 drives the brush 9 to move vertically to clean the dust on the surface of the filter screen 5.
[0026] When the device is used for air exchange, the induced draft fan 4 is started to suck the air in the workshop into the ventilation box 1 through the air inlet pipe 3, the air passes through the filter 5 to be filtered, and finally is discharged to the outside through the induced draft fan 4; when in use, the air inlet pipe 3 is located in the workshop, and the induced draft fan 4 and the dust exhaust channel 10 are located outside the workshop.
[0027] Specifically, the driving assembly 8 includes a bracket 81 fixed to the top of the ventilation box 1, a motor 82 fixed to the top of the bracket 81, and a screw rod 83 fixed to the output end of the motor 82. A traction bar 84 is threadedly sleeved on the screw rod 83. Two symmetrically distributed guide rods 85 are fixedly connected to the bottom of the traction bar 84. The lower end of the guide rod 85 is movably arranged to penetrate the top wall of the ventilation box 1. The lower end of the guide rod 85 extends into the ventilation box 1 and is fixedly connected to the brush 9.
[0028] Furthermore, a dust exhaust passage 10 is provided at the bottom of the ventilation box 1 . The dust exhaust passage 10 is located below the filter 5 . The dust scraped off the filter 5 is discharged from the ventilation box 1 through the dust exhaust passage 10 .
[0029] When cleaning the filter 5, the motor 82 is started to drive the screw 83 to rotate, and the screw 83 drives the traction bar 84 to move vertically. The traction bar 84 drives the brush 9 to move vertically through the guide rod 85, so that the brush 9 cleans the dust on the surface of the filter 5. The scraped dust is discharged from the ventilation box 1 through the dust exhaust channel 10 under the action of gravity. A dust collecting box can be set at the bottom of the dust exhaust channel 10 to collect dust. This method does not require frequent replacement of the filter 5 to achieve cleaning.
[0030] The following specifically describes how to install the filter 5. A groove 201 is provided on the side wall of the installation cover 2 close to the ventilation box 1. The filter 5 is arranged in the groove 201. The groove 201 is a U-shaped structure. The filter 5 is a flat plate structure. The groove 201 is adapted to the structure of the filter 5.
[0031] The mounting cover 2 is provided with two slots 202 on the side wall close to the ventilation box 1, and a retaining bar 6 is slidably connected inside the slot 202. When one end of the retaining bar 6 contacts the surface of the filter 5, the filter 5 is prevented from falling off from the inside of the groove 201, and the filter 5 can be limited by the retaining bar 6.
[0032] Specifically, two guide bars 7 distributed up and down are fixedly connected inside the groove 202, and sliding openings are opened at the upper and lower ends of the baffle bar 6. The guide bar 7 is inserted in the sliding opening, and the baffle bar 6 is slidably set on the guide bar 7 through the sliding opening. In this way, under the action of the guide bar 7, the baffle bar 6 can realize linear movement, pushing the baffle bar 6. When one end of the baffle bar 6 contacts with the surface of the filter screen 5, the purpose of limiting and fixing the filter screen 5 is achieved.
[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A ventilation device for a solid preparation workshop, characterized in that: The invention comprises a ventilation box (1), a mounting cover (2) fixedly mounted on one side of the ventilation box (1), and an air inlet pipe (3) connected to the other side of the ventilation box (1); a draft fan (4) is fixedly mounted on the side of the mounting cover (2) away from the ventilation box (1); a filter screen (5) is detachably mounted on the other side of the mounting cover (2); a brush (9) is arranged inside the ventilation box (1), the brush (9) is in contact with the surface of the filter screen (5); a driving component (8) is arranged on the top of the ventilation box (1), and the driving component (8) drives the brush (9) to move vertically to clean dust on the surface of the filter screen (5).
2. A solid preparation workshop ventilation device according to claim 1, characterized in that: The driving assembly (8) comprises a bracket (81) fixed to the top of the ventilation box (1), a motor (82) fixed to the top of the bracket (81), and a screw rod (83) fixed to the output end of the motor (82); a traction bar (84) is threadedly sleeved on the screw rod (83); two symmetrically distributed guide rods (85) are fixedly connected to the bottom of the traction bar (84); the lower ends of the guide rods (85) are movably arranged to penetrate the top wall of the ventilation box (1); the lower ends of the guide rods (85) extend into the ventilation box (1) and are fixedly connected to the brush (9).
3. A solid preparation workshop ventilation device according to claim 1, characterized in that: A groove (201) is provided on a side wall of the installation cover (2) close to the ventilation box (1), and the filter screen (5) is arranged in the groove (201).
4. A solid preparation workshop ventilation device according to claim 3, characterized in that: The side wall of the installation cover (2) close to the ventilation box (1) is provided with two slots (202), and a retaining bar (6) is slidably connected inside the slot (202), and the filter screen (5) can be limited by the retaining bar (6).
5. A solid preparation workshop ventilation device according to claim 4, characterized in that: Two guide bars (7) distributed vertically are fixedly connected inside the slot (202), and sliding openings are provided at both upper and lower ends of the blocking bar (6), and the blocking bar (6) is slidably arranged on the guide bar (7) through the sliding openings.
6. A solid preparation workshop ventilation device according to claim 1, characterized in that: The bottom of the ventilation box (1) is connected to a dust exhaust passage (10), and the dust exhaust passage (10) is located below the filter screen (5).