Leech drying device
By designing a jet pipe to uniformly blow hot airflow and a string-hanging structure, the problems of uneven leech accumulation and energy waste were solved, achieving uniform drying and energy recovery of leeches, thus improving drying efficiency and energy saving.
Patent Information
- Application Number
- CN202520550869.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In existing drying equipment, leeches tend to accumulate unevenly when drying, resulting in uneven drying, and the heat is lost due to the exhaust water vapor.
A leech drying device was designed, in which hot air is blown evenly through a jet pipe, leeches are strung together and hung up using a string, and combined with a support plate and a placement rack to ensure uniform drying; at the same time, heat exchange tube bundles are used to recover heat and reduce energy consumption.
This method achieves uniform drying of leeches, improves drying efficiency, reduces energy consumption, and facilitates the removal and reuse of leeches in strips.
Smart Images

Figure CN223896426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, specifically a leech drying device. Background Technology
[0002] In the production process of medicinal leeches, drying equipment is needed to dry the cleaned leeches.
[0003] Existing drying devices typically place leeches on drying trays, which can easily cause them to pile up and not be able to ensure that they are dried evenly. In addition, a large amount of heat is released along with the water vapor during the drying process, resulting in energy loss. To address these issues, a leech drying device is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a leech drying device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A leech drying device includes a base and a box. The box is fixedly installed on the top of the base. Air jet pipes are uniformly and symmetrically fixedly installed on the inner wall of the box. Several spray holes are uniformly opened on the air jet pipes. A conveying pipe is connected to all air jet pipes outside the box. Multiple support plates are uniformly and symmetrically fixedly connected to both sides of the inner wall of the box. A placement rack is installed on the top of each support plate at the same height. L-shaped hooks are uniformly arranged on one side of the bottom of the placement rack. L-shaped plates corresponding to the L-shaped hooks are uniformly and fixedly connected to the bottom of the placement rack away from the L-shaped hooks. A string is provided between the string and the corresponding L-shaped hook. One end of the string has a hanging hole, which is fitted onto the L-shaped hook. The L-shaped hook is threaded with a hand-tightening nut on the outside of the hanging hole. The other end of the string is placed on the L-shaped plate. A hand-tightening bolt is threaded through the L-shaped plate and rotates inside the L-shaped plate. An exhaust fan is fixedly installed at the outlet on the top of the box. An output pipe is fixedly installed at the output port of the exhaust fan. A heating box and an air pump are sequentially installed at one end of the conveying pipe at the back of the box. A heating grid is fixedly installed inside the heating box.
[0007] As a further embodiment of this utility model, the end of the string away from the hanging hole is set as a pointed end.
[0008] As a further improvement of this utility model, the L-shaped plate is provided with a groove that is compatible with the string strip.
[0009] As a further improvement of this utility model: a heat exchange box is provided on the output pipe, and multiple heat exchange tube bundles are evenly arranged between the air inlet and the air outlet of the heat exchange box, and the air outlet of the heat exchange box is connected to the end of the conveying pipe.
[0010] As a further improvement of this utility model, a transparent observation window is provided on the box door.
[0011] As a further improvement of this utility model, a handle is fixedly connected to the box door.
[0012] As a further improvement of this utility model: a limiting strip is fixedly installed on the top of the support plate on the side away from the inner wall of the box, and protrusions for limiting are provided at both ends of the bottom of the placement frame.
[0013] As a further improvement of this utility model, a limiting plate is fixedly installed at the inner end of the support plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In use, this utility model involves stringing together leeches to be dried using a stringing rod. The hanging holes at the ends of the stringing rods are attached to L-shaped hooks at the bottom of the rack, while the other end rests on an L-shaped plate. The hanging hole end of the stringing rod is fixed by a hand-tightened nut connected to the threaded connection of the L-shaped hook. By turning the hand-tightened bolt, the bolt pushes the pressure plate downward, fixing the other end of the stringing rod in the L-shaped plate. After the rack is full of strings, it is placed on a support plate at the same height inside the chamber. Once all support plates are filled with racks, the chamber door is closed. An air pump delivers airflow into the chamber through a delivery pipe. The delivered airflow is heated by a heating grid and evenly blown onto the leeches on the stringing rods through nozzles on the air jet pipe, which helps to evenly dry the leeches inside the chamber. At the same time, an exhaust fan expels the gas from inside the chamber, improving drying efficiency. Conversely, after the dried leeches cool down, they can be easily removed from the stringing rods for reuse.
[0016] 2. In this invention, the airflow delivered to the box through the conveying pipe enters the heat exchange tube bundle through the air inlet of the heat exchange box. The airflow in the heat exchange tube bundle and the airflow discharged from the output pipe recover heat, thereby reducing energy consumption. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a leech drying device.
[0018] Figure 2 This is a front sectional view of a leech drying apparatus.
[0019] Figure 3 This is a side sectional view of a leech drying apparatus.
[0020] Figure 4 This is a partial cross-sectional view of a leech drying apparatus.
[0021] Figure 5 for Figure 2 A magnified view of a portion of point A in the middle.
[0022] Figure 6 for Figure 2 A magnified view of a section at point B.
[0023] Figure 7 for Figure 3 A magnified view of a section at point C.
[0024] Figure 8 This is a schematic diagram of the structure of a leech drying device using a string of bars.
[0025] In the diagram: 1. Base; 2. Box body; 3. Box door; 4. Observation window; 5. Handle; 6. Conveying pipe; 7. Exhaust fan; 8. Output pipe; 9. Jet pipe; 10. Support plate; 11. Placement rack; 12. Spray hole; 13. Limiting strip; 14. L-shaped hook; 15. Hand-tightening nut; 16. Heat exchange box; 17. Heat exchange tube bundle; 18. Heating box; 19. Heating grid; 20. Air pump; 21. L-shaped plate; 22. Groove; 23. Pressure plate; 24. Hand-tightening bolt; 25. Stringing bar; 26. Hanging hole. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-8In this embodiment of the invention, a leech drying device includes a base 1 and a box 2. The box 2 is fixedly installed on the top of the base 1. Air jet pipes 9 are uniformly and symmetrically fixedly installed on the inner wall of the box 2. A plurality of spray holes 12 are uniformly opened on the air jet pipes 9. A conveying pipe 6 is connected to the air jet pipes 9 outside the box 2. A plurality of support plates 10 are uniformly and symmetrically fixedly connected to both sides of the inner wall of the box 2. A placement rack 11 is provided on the top of the support plates 10 at the same height. L-shaped hooks 14 are uniformly arranged on one side of the bottom of the placement rack 11. L-shaped plates 21 corresponding to the L-shaped hooks 14 are uniformly and fixedly connected to the side of the bottom of the placement rack 11 away from the L-shaped hooks 14. The L-shaped plates 21 and the corresponding L-shaped hooks 14 are connected... A stringer 25 is provided, with a hanging hole 26 at one end. The hanging hole 26 is fitted onto an L-shaped hook 14, and a hand-tightening nut 15 is threaded onto the outside of the hanging hole 26 on the L-shaped hook 14. The other end of the stringer 25 is placed on an L-shaped plate 21. A hand-tightening bolt 24 is threaded through the L-shaped plate 21 and connected to the hand-tightening bolt 24. A pressure plate 23 is connected to the hand-tightening bolt 24 within the L-shaped plate 21. An exhaust fan 7 is fixedly installed at the outlet at the top of the box 2. An output pipe 8 is fixedly installed at the output port of the exhaust fan 7. A heating box 18 and an air pump 20 are sequentially arranged at one end of the conveying pipe 6 at the back of the box 2. A heating grid 19 is fixedly installed inside the heating box 18. A humidity sensor and a temperature sensor are also installed inside the box 2.
[0028] In use, the leeches to be dried are strung together using the stringer 25. The hanging holes 26 at the end of the stringer 25 are hung on the L-shaped hooks 14 at the bottom of the placement rack 11, and the other end rests on the L-shaped plate 21. The hanging holes 26 of the stringer 25 are fixed by the threaded connection between the hand-tightening nut 15 and the L-shaped hook 14. By turning the hand-tightening bolt 24, the hand-tightening bolt 24 pushes the pressure plate 23 downward, so that the pressure plate 23 fixes the other end of the stringer 25 in the L-shaped plate 21. The placement rack 11 is then fully loaded with strings of leeches. After strip 25, place the rack 11 on the support plate 10 at the same height inside the box 2. After all the support plates 10 have racks 11 placed on them, close the box door 3. The exhaust fan 7, heating grid 19 and air pump 20 work simultaneously. The air pump 20 delivers airflow into the box 2 through the delivery pipe 6. The delivered airflow is heated by the heating grid 19 and blown evenly onto the leeches strung on the strip 25 through the nozzles 12 on the jet pipe 9. The exhaust fan 7 discharges the gas inside the box 2, improving the drying efficiency.
[0029] The end of the string 25 away from the hanging hole 26 is set as a pointed tip, which makes it convenient for workers to string together the leeches that need to be dried.
[0030] The L-shaped plate 21 has a groove 22 that matches the string 25. The groove 22 is used to position and limit the end of the string 25.
[0031] A heat exchange box 16 is provided on the output pipe 8. Multiple heat exchange tube bundles 17 are evenly arranged between the air inlet and the air outlet of the heat exchange box 16. The air outlet of the heat exchange box 16 is connected to the end of the conveying pipe 6. The airflow delivered to the box 2 through the conveying pipe 6 enters the heat exchange tube bundle 17 through the air inlet of the heat exchange box 16. The airflow in the heat exchange tube bundle 17 and the airflow discharged from the output pipe 8 perform heat recovery, thereby reducing energy consumption.
[0032] The door 3 is equipped with a transparent observation window 4, which is made of transparent tempered glass, to facilitate staff to observe the inside of the box 2.
[0033] A handle 5 is fixedly connected to the door 3, which facilitates the opening and closing of the door 3.
[0034] The top of the support plate 10 is fixedly installed with a limiting strip 13 on the side away from the inner wall of the box 2. The bottom ends of the placement frame 11 are provided with protruding strips for limiting. When the support plate 10 is placed on the support plate 10, the protruding strips on both sides of the bottom of the placement frame 11 are placed on the top of the support plate 10, and the limiting strip 13 fixedly connected to the top of the support plate 10 fits against the inner side of the protruding strip, thereby realizing the positioning and limiting of the support plate 10.
[0035] A limiting plate is fixedly installed at the inner end of the support plate 10. The limiting plate limits the placement rack 11 placed on the top of the support plate 10 to prevent the placement rack 11 from being pushed over.
[0036] 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 leech drying device, comprising a base (1) and a housing (2), characterized in that: The box (2) is fixedly installed on the top of the base (1). Air jet pipes (9) are evenly and symmetrically fixedly installed on the inner wall of the box (2). Several spray holes (12) are evenly opened on the air jet pipes (9). The air jet pipes (9) are connected to a common conveying pipe (6) outside the box (2). Multiple support plates (10) are evenly and symmetrically fixedly connected on both sides of the inner wall of the box (2). A placement rack (11) is set on the top of the support plate (10) at the same height. L-shaped hooks (14) are evenly arranged on one side of the bottom of the placement rack (11). L-shaped plates (21) corresponding to the L-shaped hooks (14) are evenly fixedly connected on the side of the bottom of the placement rack (11) away from the L-shaped hooks (14). A stringer (25) is set between the L-shaped plate (21) and the corresponding L-shaped hook (14). One end of the string (25) is provided with a hanging hole (26), which is fitted onto an L-shaped hook (14). The L-shaped hook (14) is threaded with a hand-tightening nut (15) on the outside of the hanging hole (26). The other end of the string (25) is placed on an L-shaped plate (21). The placement rack (11) is threaded through the L-shaped plate (21) with a hand-tightening bolt (24). The hand-tightening bolt (24) is rotated inside the L-shaped plate (21) and connected to a pressure plate (23). An exhaust fan (7) is fixedly installed at the top outlet of the box (2). An output pipe (8) is fixedly installed at the outlet of the exhaust fan (7). A heating box (18) and an air pump (20) are sequentially installed at one end of the conveying pipe (6) behind the box (2). A heating grid (19) is fixedly installed inside the heating box (18).
2. The leech drying apparatus according to claim 1, characterized in that: The end of the string (25) away from the hanging hole (26) is set as a pointed end.
3. The leech drying apparatus according to claim 1, characterized in that: The L-shaped plate (21) has a groove (22) that matches the string (25).
4. The leech drying apparatus according to claim 1, characterized in that: A heat exchange box (16) is provided on the output pipe (8). Multiple heat exchange tube bundles (17) are evenly arranged between the air inlet and the air outlet of the heat exchange box (16). The air outlet of the heat exchange box (16) is connected to the end of the conveying pipe (6).
5. A leech drying apparatus according to claim 1, characterized in that: A transparent observation window (4) is provided on the door (3).
6. The leech drying apparatus according to claim 1, characterized in that: A handle (5) is fixedly connected to the door (3).
7. A leech drying apparatus according to claim 1, characterized in that: The support plate (10) has a limit strip (13) fixedly installed on the top side away from the inner wall of the box (2), and the bottom ends of the placement rack (11) are provided with protrusions for limiting.
8. A leech drying apparatus according to claim 1, characterized in that: A limiting plate is fixedly installed at the inner end of the support plate (10).