Veterinary medicine drying hot air guide plate structure
By combining fixed and moving guide plates and adjusting the spacing, the problem of uneven hot air distribution with fixed guide plate spacing is solved, achieving uniform hot air distribution and stable drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI LITAK BIOLOGICAL ENG CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-21
AI Technical Summary
In existing veterinary drug drying equipment, the fixed spacing of the guide plates leads to uneven hot air, resulting in local overheating or undercooling, which fails to effectively cover the material surface and affects the drying effect.
By combining a fixed guide vane and a moving guide vane, along with a spacing adjustment mechanism and a stop assembly, the hot air is evenly distributed and localized overheating and airflow short-circuiting are avoided by adjusting the spacing between the moving guide vane and the fixed guide vane.
It achieves uniform distribution of hot air, improves hot air utilization, avoids local overheating or undercooling of material surface, and ensures drying quality and stability.
Smart Images

Figure CN224534722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of veterinary drug production equipment technology, specifically to a hot air guide plate structure for veterinary drug drying. Background Technology
[0002] In the process of veterinary drug production, the drying process is a crucial step, which directly affects the quality and stability of veterinary drugs. Currently, most common veterinary drug drying equipment uses hot air circulation for drying.
[0003] The drying chamber contains multiple guide plates arranged in layers to form multi-stage airflow, ensuring that hot air penetrates the material layer evenly. However, the fixed spacing between the guide plates can lead to uneven airflow diffusion, resulting in some areas having concentrated hot air (overheating) and others having insufficient hot air (undercooling). If the spacing is too large, the hot air may pass directly through the gaps between the material layers, leading to insufficient drying of the bottom layer material. If the spacing is too small, the airflow forms vortices at the edges of the guide plates, failing to effectively cover the material surface. To address these issues, we propose a hot air guide plate structure for veterinary drug drying. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a hot air guide plate structure for drying veterinary drugs, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a hot air guide plate structure for drying veterinary drugs, disposed inside a drying chamber, comprising: a fixed guide plate fixedly installed inside the drying chamber, and a movable guide plate slidably connected to the drying chamber; the drying chamber is further provided with a spacing adjustment mechanism and a stop assembly; the spacing adjustment mechanism includes a main shaft and a secondary shaft rotatably disposed inside the drying chamber; a main bevel gear is fixedly installed at the inner end of the main shaft, and a connecting rod is fixedly installed at the outer end of the main shaft; a crank handle inner shaft is fixedly installed at the outer side of the connecting rod; a lead screw and a secondary bevel gear are fixedly installed at both ends of the secondary shaft, and the secondary bevel gear meshes with the main bevel gear; the stop assembly includes a friction plate embedded in the side of the drying chamber and a screw threadedly connected to the crank handle inner shaft; an abutment block is fixedly installed at the inner end of the screw.
[0006] Preferably, the drying oven has an observation window on its side wall and a scale on its side.
[0007] Preferably, the top surface of the drying oven is provided with an air inlet that can be connected to a hot air blower, and the bottom surface of the drying oven is also provided with an air outlet.
[0008] Preferably, the drying oven is fitted with a shelf for placing veterinary drug granules. The shelf is located below the flow guide plate, and there is a gap between the shelf and the side wall of the drying oven cavity.
[0009] Preferably, there are two moving guide vanes, which are symmetrically arranged on both sides of the fixed guide vane.
[0010] Preferably, the outer surface of the lead screw is symmetrically provided with two sections of threads with opposite helical directions, and these two sections of threads are respectively threadedly connected to two moving guide plates.
[0011] Preferably, the abutment block can contact the friction plate to form a contact surface, and the contact surface is also provided with friction textures to enhance the friction force after the abutment block and the friction plate come into contact.
[0012] Preferably, a crank sleeve is rotatably mounted on the inner shaft of the crank handle, and a retaining ring is fixedly installed on the outer surface of the inner shaft of the crank handle to prevent the crank sleeve from falling off.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The hot air guide plate structure for veterinary drug drying uses fixed and moving guide plates to form a guide plate assembly. Multiple guide plates can shorten the hot air penetration path, reduce airflow resistance, and improve hot air utilization. At the same time, layered guidance can avoid material surface crusting or local overheating. In addition, a spacing adjustment mechanism is provided to adjust the spacing between the fixed and moving guide plates. Through dynamic spacing adjustment, local overheating, airflow short circuits, and dead zones are further eliminated.
[0015] 2. The hot air guide plate structure for veterinary drug drying, by setting a stop component in conjunction with the spacing adjustment mechanism, tightens the screw to make the abutment block and the friction plate in close contact, thereby forming a certain friction force. Therefore, under the action of this friction force, the internal structure of the spacing adjustment mechanism can be locked, thereby locking the spacing between the fixed guide plate and the moving guide plate, ensuring the stability of the overall structure. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a cross-sectional schematic diagram of the drying oven structure of this utility model;
[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0019] Figure 4 This is a schematic diagram showing the connection between the dynamic guide plate and the lead screw structure of this utility model;
[0020] Figure 5 This is an exploded view of the inner shaft structure of the crank handle of this utility model.
[0021] In the diagram: 1. Drying oven; 11. Air inlet; 12. Observation window; 13. Scale; 14. Fixed guide plate; 15. Moving guide plate; 16. Shelf; 17. Air outlet; 2. Spacing adjustment mechanism; 21. Connecting rod; 22. Crank handle outer sleeve; 221. Crank handle inner shaft; 23. Lead screw; 24. Secondary shaft; 25. Secondary bevel gear; 26. Main bevel gear; 27. Main shaft; 3. Stop assembly; 31. Friction plate; 32. Abutment block; 33. Screw. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-5 A hot air guide plate structure for drying veterinary drugs is provided inside a drying chamber 1. It includes a fixed guide plate 14 fixedly installed inside the drying chamber 1 and a movable guide plate 15 slidably connected to the drying chamber 1. The drying chamber 1 is also equipped with a spacing adjustment mechanism 2 and a stop assembly 3. An observation window 12 is provided on the side wall of the drying chamber 1, and a scale 13 is provided on the side of the drying chamber 1. The observation window 12 and the scale 13 cooperate with each other, thereby facilitating user observation and measurement of the air flow between the guide plate 14 and the movable guide plate 15. The spacing between the parts is adjusted in real time to improve the overall structural performance. The top surface of the drying box 1 is provided with an air inlet 11 that can be connected to a hot air blower, and the bottom surface of the drying box 1 is also provided with an air outlet 17. A shelf 16 for placing veterinary drug granules is inserted into the drying box 1. The shelf 16 is located below the moving guide plate 15, and there is a gap between the shelf 16 and the side wall of the inner cavity of the drying box 1. There are two moving guide plates 15, which are symmetrically arranged on both sides of the fixed guide plate 14.
[0024] The spacing adjustment mechanism 2 includes a main shaft 27 and a secondary shaft 24 rotatably disposed inside the drying chamber 1. A main bevel gear 26 is fixedly installed at the inner end of the main shaft 27, and a connecting rod 21 is fixedly installed at the outer end of the main shaft 27. A crank inner shaft 221 is fixedly installed on the outer side of the connecting rod 21. A lead screw 23 and a secondary bevel gear 25 are fixedly installed at both ends of the secondary shaft 24, and the secondary bevel gear 25 meshes with the main bevel gear 26. The outer surface of the lead screw 23 is symmetrically provided with two sections of threads with opposite helical directions, and these two sections of threads are respectively threaded to two moving guide plates 15. A crank outer sleeve 22 is rotatably disposed on the crank inner shaft 221, and a retaining ring is fixedly installed on the outer surface of the crank inner shaft 221 to prevent the crank outer sleeve 22 from falling off, which facilitates user operation and allows the main shaft 27 and the main bevel gear 26 to rotate via the connecting rod 21.
[0025] The stop assembly 3 includes a friction plate 31 embedded in the side of the drying oven 1 and a screw 33 threadedly connected to the inner shaft 221 of the crank handle. An abutment block 32 is fixedly installed at the inner end of the screw 33. The abutment block 32 can contact the friction plate 31 to form a contact surface, and the contact surface is also provided with friction patterns to enhance the friction force after the abutment block 32 contacts the friction plate 31.
[0026] Working principle: A fixed guide plate 14 is fixed inside the drying chamber 1, and two movable guide plates 15 are respectively set on both sides of the fixed guide plate 14. Both movable guide plates 15 are slidably connected to the drying chamber 1. Therefore, the hot air blower injects hot air into the drying chamber 1 through the air inlet 11, and the air is evenly distributed on the shelf 16 containing veterinary drug granules through the movable guide plates 15 and the fixed guide plate 14 to achieve the purpose of drying. Finally, the excess air volume is discharged through the air outlet 17 at the bottom of the drying chamber 1. When it is necessary to adjust the distance between the movable guide plate 15 and the fixed guide plate 14, the inner shaft 221 of the crank handle and the main shaft 27 are fixed on the inner and outer sides of the connecting rod 21, respectively. The inner shaft 221 of the crank handle is rotatably connected to the outer sleeve 22 of the crank handle. The main shaft 27, which is rotatably connected to the drying chamber 1, is also fixed with a main bevel gear 26 that meshes with the secondary bevel gear 25. The secondary bevel gear 25 is fixedly connected to the lead screw 23 through the secondary shaft 24. Therefore, the user can drive the connecting rod through the outer sleeve 22 of the crank handle. Rotating around the main shaft 27, the main bevel gear 26 rotates together with the main shaft 27. Under the transmission of the main bevel gear 26 and the secondary bevel gear 25, the lead screw 23 rotates synchronously inside the drying chamber 1. The surface of the lead screw 23 is symmetrically provided with two sections of threads with opposite helical directions. These two sections of threads connect to two moving guide plates 15. After the lead screw 23 rotates, it will drive the two moving guide plates 15 to slide together. The sliding directions of the two moving guide plates 15 are opposite, which can keep the distance between the moving guide plates 15 and the fixed guide plates 14 consistent for adjustment. Then, the screw 33, which is threaded to the inner shaft 221 of the crank handle, is tightened so that the abutment block 32 at the end of the screw 33 is in close contact with the friction plate 31 embedded in the drying chamber 1. At this time, the friction texture on the side of the abutment block 32 is tightly engaged to form a certain friction force, thereby restricting the rotation of the connecting rod 21 and other structures, limiting the rotation of the lead screw 23, and thus locking the position of the moving guide plates 15.
[0027] 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 hot air guide plate structure for drying veterinary drugs, disposed inside a drying oven (1), characterized in that, include: A fixed guide plate (14) is fixedly installed inside the drying box (1), and a movable guide plate (15) is slidably connected to the drying box (1). The drying box (1) is also provided with a spacing adjustment mechanism (2) and a stop assembly (3). The spacing adjustment mechanism (2) includes a main shaft (27) and a secondary shaft (24) rotatably disposed inside the drying chamber (1). A main bevel gear (26) is fixedly installed at the inner end of the main shaft (27), and a connecting rod (21) is fixedly installed at the outer end of the main shaft (27). A crank inner shaft (221) is fixedly installed on the outer side of the connecting rod (21). A lead screw (23) and a secondary bevel gear (25) are fixedly installed at both ends of the secondary shaft (24). The secondary bevel gear (25) meshes with the main bevel gear (26). The stop assembly (3) includes a friction plate (31) embedded in the side of the drying box (1) and a screw (33) threadedly connected to the inner shaft (221) of the crank handle. An abutment block (32) is fixedly installed on the inner end of the screw (33).
2. The hot air guide plate structure for drying veterinary drugs according to claim 1, characterized in that, The drying oven (1) has an observation window (12) on its side wall and a scale (13) on its side.
3. The hot air guide plate structure for drying veterinary drugs according to claim 1, characterized in that, The top surface of the drying box (1) is provided with an air inlet (11) that can be connected to a hot air blower, and the bottom surface of the drying box (1) is also provided with an air outlet (17).
4. The hot air guide plate structure for drying veterinary drugs according to claim 1, characterized in that, The drying oven (1) is fitted with a shelf (16) for placing veterinary drug granules. The shelf (16) is located below the guide plate (15), and there is a gap between the shelf (16) and the side wall of the inner cavity of the drying oven (1).
5. The hot air guide plate structure for drying veterinary drugs according to claim 1, characterized in that, There are two moving guide plates (15), which are symmetrically arranged on both sides of the fixed guide plate (14).
6. The hot air guide plate structure for drying veterinary drugs according to claim 5, characterized in that, The outer surface of the lead screw (23) is symmetrically provided with two sections of threads with opposite helical directions, and these two sections of threads are respectively threaded to two moving guide plates (15).
7. The hot air guide plate structure for drying veterinary drugs according to claim 1, characterized in that, The abutment block (32) can contact the friction plate (31) to form a contact surface, and the contact surface is also provided with friction textures to enhance the friction force after the abutment block (32) and the friction plate (31) come into contact.
8. The hot air guide plate structure for drying veterinary drugs according to claim 1, characterized in that, A crank sleeve (22) is rotatably mounted on the inner shaft (221) of the crank handle, and a retaining ring for preventing the crank sleeve (22) from falling off is also fixedly installed on the outer surface of the inner shaft (221).