Raw material cooling device for stewed pickled duck feet

By designing an automated multi-hole scraper and nozzle circulation rinsing system, the problems of manual removal and incomplete cleaning of impurities in the duck feet cooling device were solved, achieving automated cooling and efficient impurity separation.

CN224246565UActive Publication Date: 2026-05-15FUJIAN PINGGE FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN PINGGE FOOD CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing duck feet cooling devices require manual removal of the duck feet from the cooling tank during the cooling process, which is time-consuming and labor-intensive, and the impurities on the surface of the duck feet are difficult to clean thoroughly after steaming.

Method used

A cooling device comprising a sealed tank, a central column, a turntable, and a perforated scraper is designed. Impurities are separated by the perforated scraper and a coarse filter screen, and a circulating rinsing system consisting of a nozzle and a fine filter screen is combined to achieve automated impurity separation and cleaning.

Benefits of technology

It achieves automated cooling and impurity separation in the soaking of duck feet, reduces manual operation, improves cleaning efficiency, and ensures that the surface of the duck feet is clean.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pickled duck foot cooling equipment, in particular to a raw material cooling device for cooked pickled duck feet, which comprises a frame, a water storage tank, a spray head, a water supply component, a central column, a turntable and a driving component. A sealing tank is arranged on the rack, a sewer pipe is arranged at the bottom of the sealing tank, and a fine filtration assembly is arranged in the sewer pipe; a refrigeration assembly is arranged on the water storage tank; the sewer pipe is communicated with the interior of the water storage tank; the nozzle is arranged on the sealing tank; the water supply assembly is arranged on the rack and communicates with the water storage tank and the nozzle; the central column penetrates through the sealing tank and is coaxially connected with the sealing tank; a blanking groove and a discharging groove are formed in the central column; the rotating disc is coaxially and rotatably arranged in the annular channel, a plurality of porous scraping plates are arranged on the rotating disc, and the porous scraping plates are in sliding connection with the inner arc surface and the outer arc surface of the annular channel; the driving assembly is arranged on the rack and drives the rotating disc to rotate. According to the utility model, the pickled duck feet can be rapidly cooled and washed on the basis of continuous feeding and discharging.
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Description

Technical Field

[0001] This utility model relates to the technical field of cooling equipment for pickled duck feet, specifically to a device for cooling raw materials after pickling and cooking duck feet. Background Technology

[0002] Pickled duck feet is a Hakka-style snack originating from Longyan, Fujian, and first appeared in western Fujian in late 2008 to early 2009. It evolved from the process of pickling chicken feet, with duck feet as the main ingredient. The seasoning system includes pickled peppers, vinegar, salt, and rock sugar. The finished product has a complex flavor of sweet, sour, and slightly spicy, and a crisp texture. The processing of pickled duck feet requires steaming, cleaning, cooling, and soaking. Currently, the cooling process mainly involves immersing the duck feet in water for cooling and cleaning, which is quite labor-intensive.

[0003] Chinese patent CN217785613U discloses a raw material cooling device for steamed duck feet. The device uses three sets of vibrating nets to tilt and guide the duck feet into the cooling tank layer by layer, and uses a rinsing mechanism to rinse the duck feet on the vibrating nets.

[0004] However, the device still has shortcomings. After being rinsed, the duck feet are cooled in a cooling pool. The duck feet in the cooling pool still need to be taken out by staff, which is time-consuming and laborious. In addition, because the surface of the duck feet is very sticky after steaming, it is difficult to thoroughly clean the impurities on the surface of the duck feet before they enter the cooling pool by simply rinsing them with a suspended spray. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a raw material cooling device for steamed duck feet.

[0006] The technical solution of this utility model is: a raw material cooling device for steamed duck feet, including a frame, a sealed tank on the frame, a drain pipe at the bottom of the sealed tank, and a fine filter assembly inside the drain pipe;

[0007] A water storage tank is equipped with a refrigeration unit, and the drain pipe is connected to the inside of the water storage tank.

[0008] The nozzle is mounted on the sealed container, and its output end is connected to the inner cavity of the sealed container.

[0009] Water supply assembly, which is mounted on the frame and connected to the water storage tank and the nozzle;

[0010] A central column penetrates the sealed tank and is coaxially connected to it. An annular channel is provided between the outer wall of the central column and the inner wall of the sealed tank. A feeding chute with its opening facing downwards and a discharging chute with its opening facing upwards are provided on the central column. The input end of the feeding chute is connected to the outside, and the output end of the discharging chute is connected to the outside.

[0011] A turntable is coaxially arranged in an annular channel. Several perforated scrapers are arranged in a circular array around its axis on the turntable. The perforated scrapers are slidably connected to the inner and outer arc surfaces of the annular channel.

[0012] And a drive assembly, which is mounted on the rack and drives the turntable to rotate.

[0013] Preferably, a drain hole is provided at the bottom of the sealed container, a drain pipe is wrapped around the outside of the drain hole, and a coarse filter screen is provided inside the drain hole, with the concave surface of the coarse filter screen matching the curvature of the inner cavity of the sealed container.

[0014] Preferably, the water supply assembly includes a water guide pipe and a water pump. The outlet of the nozzle is located above the liquid surface and offset from the inlet of the discharge trough. The water guide pipe is connected to each nozzle. The body of the water pump is mounted on the frame. The input end of the water pump is connected to the inside of the water storage tank, and the output end of the water pump is connected to the water guide pipe.

[0015] Preferably, a water inlet pipe is provided on the side of the sealed tank that is opposite to the inlet of the discharge chute and communicates with the inside of the sealed tank. A solenoid valve is provided on the water inlet pipe to control the opening and closing of the inside.

[0016] Preferably, a temperature sensor for monitoring the internal water temperature and a liquid level sensor for monitoring the water level are installed inside the sealed tank, and a PLC controller is installed on the frame. The PLC controller is connected to the temperature sensor, liquid level sensor, solenoid valve and refrigeration components.

[0017] Preferably, the frame is provided with a feed hopper connected to the input end of the feed chute, and the frame is provided with a discharge hopper connected to the output end of the discharge chute.

[0018] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0019] By setting up a perforated scraper and a central column with a feeding trough and a discharging trough, and installing a coarse filter screen, duck feet enter the sealed tank along the feeding trough and are soaked in water, reducing the stickiness of the gel on the surface of the duck feet, thus allowing impurities to be quickly separated from the duck feet. As the perforated scraper scrapes the duck feet into the discharging trough, the separated impurities automatically pass through the mesh of the scraper and the mesh of the coarse filter screen and flow downwards, achieving separation of impurities from the duck feet. By setting up a nozzle, the nozzle is connected to the inside of the sealed tank through a drain pipe, a water storage tank, and a water pump. A fine filter component is installed in the drain pipe. Water is circulated from the sealed tank and sprayed through the nozzle to rinse the soaked and cooled duck feet a second time, further removing impurities from their surface, while promoting the passage of impurities through the coarse filter screen and onto the fine filter screen for easy collection and cleaning later. Attached Figure Description

[0020] Figure 1This is a perspective view of one embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the sealed container in this utility model;

[0022] Figure 3 A schematic diagram of the connection structure between the turntable, scraper, and central column;

[0023] Figure 4 This is a schematic diagram of the connection structure between the central column and the feed hopper and discharge hopper.

[0024] Reference numerals: 1. Frame; 2. Sealed tank; 201. Drain hole; 3. Coarse filter screen; 4. Drain pipe; 5. Fine filter assembly; 6. Water storage tank; 7. Refrigeration assembly; 8. Nozzle; 9. Water guide pipe; 10. Water pump; 11. Water inlet pipe; 12. Central column; 121. Feed chute; 122. Discharge chute; 13. Turntable; 131. Annular groove; 14. Perforated scraper; 15. Drive assembly; 151. Gear ring; 152. Rotating shaft; 153. Gear; 154. Servo motor; 16. Feed hopper; 17. Discharge hopper. Detailed Implementation

[0025] Example 1

[0026] like Figures 1-4As shown, this utility model proposes a raw material cooling device for soaked and steamed duck feet, including a frame 1, a water storage tank 6, a nozzle 8, a water supply component, a central column 12, a turntable 13, and a drive component 15. A sealed tank 2 is mounted on the frame 1, with a drain pipe 4 at the bottom of the sealed tank 2. A fine filter component 5 is installed inside the drain pipe 4. A drain hole 201 is provided at the bottom of the sealed tank 2, and the drain pipe 4 covers the outside of the drain hole 201. A coarse filter screen 3 is installed inside the drain hole 201, with the concave surface of the coarse filter screen 3 matching the arc of the inner cavity of the sealed tank 2. The mesh of the coarse filter screen 3 is used to drain impurities separated from the duck feet after soaking. The fine filter component 5 includes a sealing frame, a fine filter screen, and an activated carbon pack. One end of the sealing frame is inserted into the drain pipe 4 from one side and slidably connected to it. A central hole is provided on the sealing frame, connecting to the internal channel of the drain pipe 4. Fine filter screens are installed on the inner sides of the openings at both ends of the central hole, and the activated carbon pack is filled between the two fine filter screens. A cooling assembly 7 is installed on the water storage tank 6, and the drain pipe 4 is connected to the interior of the water storage tank 6. The cooling assembly 7 includes a semiconductor cooler, the cold end of which is attached to the outer wall of the water storage tank 6, and the hot end of which is equipped with a heat sink. Nozzles 8 are installed on the sealed tank 2, and the output end of the nozzles 8 is connected to the inner cavity of the sealed tank 2. A water supply assembly is installed on the frame 1, and includes a water guide pipe 9 and a water pump 10. The water guide pipe 9 is connected to each nozzle 8, and the body of the water pump 10 is installed on the frame 1. The input end of the water pump 10 is connected to the interior of the water storage tank 6, and the output end of the water pump 10 is connected to the water guide pipe 9. A central column 12 penetrates the sealed tank 2 and is coaxially connected to it. An annular channel is provided between the outer wall of the central column 12 and the inner wall of the sealed tank 2. A downward-opening feed trough 121 and an upward-opening discharge trough 122 are provided on the central column 12. The bottom surface of the discharge trough 122 is inclined, and its incline slopes downwards towards the discharge port of the discharge trough 122. The nozzle 8's outlet is located above the liquid surface and offset from the inlet of the discharge trough 122. The input end of the discharge trough 121 is connected to the outside, and the output end of the discharge trough 122 is connected to the outside. A feed hopper 16 connected to the input end of the discharge trough 121 is provided on the frame 1, and a discharge hopper 17 connected to the output end of the discharge trough 122 is provided on the frame 1. A turntable 13 is coaxially rotatably disposed within an annular channel. Several perforated scrapers 14 are arranged in a circular array around the turntable 13's axis. The mesh of the perforated scrapers 14 is used to separate duck feet from impurities. The perforated scrapers 14 are slidably connected to both the inner and outer arc surfaces of the annular channel. A drive assembly 15 is disposed on the frame 1 and drives the turntable 13 to rotate.

[0027] In this invention, the drive assembly 15 and water pump 10 are first activated. The drive assembly 15 drives the turntable 13 to rotate, thereby rotating the perforated scraper 14. The water pump 10 draws water from the water storage tank 6 and injects it into the nozzle 8, which then sprays the water into the sealed tank 2, thus achieving water recycling. The cooked duck feet are fed into the feed hopper 16 and descend along the feed trough 121 while being immersed in water. At this time, the stickiness of the adhesive on the surface of the duck feet gradually decreases, so that impurities no longer adhere to them. During the subsequent rotation of the perforated mesh plate, the duck feet are pushed, causing the impurities to separate from the duck feet and sink through the coarse filter screen 3 to the upper fine filter screen, which receives the impurities and filters the water flowing into the water storage tank 6. As the duck feet spiral in, when they leave the water, the nozzle 8 sprays and rinses them, further washing away impurities on their surface. The duck feet then continue to spiral in and enter the discharge trough 122 through the inlet. The duck feet slide along the slope of the discharge trough 122 and are discharged from the discharge hopper 17.

[0028] Example 2

[0029] like Figure 1-2 As shown, this utility model proposes a raw material cooling device for steamed duck feet. Compared with Embodiment 1, the sealed tank 2 has a water inlet pipe 11 connected to its interior on a side opposite to the inlet of the discharge trough 122. The water inlet pipe 11 is connected to an external water supply device (such as a direct connection to an external faucet), and a solenoid valve is installed on the water inlet pipe 11 to control its internal flow. The sealed tank 2 is equipped with a temperature sensor for monitoring the internal water temperature and a liquid level sensor for monitoring the water level. A PLC controller is installed on the frame 1, and the PLC controller is connected to the temperature sensor, liquid level sensor, solenoid valve, and refrigeration assembly 7.

[0030] In this embodiment, since the duck feet absorb a small amount of water when submerged in water, when they are discharged from the sealed tank 2, the water content in the sealed tank 2 will decrease. At this time, the liquid level sensor detects that the water level is too low, the solenoid valve opens, and external water enters the sealed tank 2 through the water inlet pipe 11 to replenish it. Meanwhile, the temperature sensor monitors the water temperature in the sealed tank 2 in real time. When the water temperature is low, the cooling power of the semiconductor cooler is appropriately reduced, while when the water temperature is high, its operating power is appropriately increased to avoid the semiconductor cooler maintaining a constant power operation for a long time, which would result in energy waste or untimely temperature control.

[0031] Example 3

[0032] like Figure 3As shown, this utility model proposes a raw material cooling device for steamed duck feet. Compared with Embodiment 1 or Embodiment 2, this embodiment proposes a specific structure of a drive component 15. The drive component 15 includes a gear ring 151, a rotating shaft 152, a gear 153, and a servo motor 154. The turntable 13 is provided with an annular groove 131 coaxial with the side away from the perforated scraper 14. The gear ring 151 is coaxially disposed in the annular groove 131. The rotating shaft 152 is rotatably disposed on the frame 1. The gear 153 is coaxially connected to the rotating shaft 152 and is inserted into the annular groove 131 and meshes with the gear ring 151. The body of the servo motor 154 is connected to the frame 1, and the output end of the servo motor 154 is connected to the rotating shaft 152.

[0033] In this embodiment, the servo motor 154 drives the rotating shaft 152 and the gear 153 to rotate. The gear 153 drives the gear ring 151 to rotate, forming a speed reduction structure. This allows the turntable 13 to obtain greater torque and improves the rotational stability of the turntable 13.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A cooling device for raw materials after steaming and boiling duck feet, characterized in that, include A frame (1) is provided, a sealed tank (2) is provided on the frame (1), a drain pipe (4) is provided at the bottom of the sealed tank (2), and a fine filter assembly (5) is provided inside the drain pipe (4); A water storage tank (6) is provided with a refrigeration component (7), and a drain pipe (4) is connected to the interior of the water storage tank (6). The nozzle (8) is installed on the sealed container (2), and the output end of the nozzle (8) is connected to the inner cavity of the sealed container (2); Water supply assembly, which is mounted on the frame (1) and connected to the water storage tank (6) and the nozzle (8); A central column (12) is provided, which penetrates the sealed tank (2) and is coaxially connected to it. An annular channel is provided between the outer wall of the central column (12) and the inner wall of the sealed tank (2). A feeding trough (121) with its opening facing downward and a discharging trough (122) with its opening facing upward are provided on the central column (12). The input end of the feeding trough (121) is connected to the outside, and the output end of the discharging trough (122) is connected to the outside. Turntable (13) is coaxially rotated in the annular channel. Several perforated scrapers (14) are arranged in a circular array around its axis on the turntable (13). The perforated scrapers (14) are slidably connected to the inner and outer arc surfaces of the annular channel. And a drive assembly (15), which is mounted on the frame (1) and drives the turntable (13) to rotate.

2. The raw material cooling device for steamed duck feet according to claim 1, characterized in that, A drain hole (201) is provided at the bottom of the sealed container (2), and a drain pipe (4) is wrapped around the outside of the drain hole (201). A coarse filter screen (3) is provided inside the drain hole (201), and the concave surface of the coarse filter screen (3) is consistent with the arc of the inner cavity of the sealed container (2).

3. The raw material cooling device for steamed duck feet according to claim 1, characterized in that, The water supply assembly includes a water guide pipe (9) and a water pump (10). The outlet of the nozzle (8) is located above the liquid surface and is offset from the inlet of the discharge trough (122). The water guide pipe (9) is connected to each nozzle (8). The body of the water pump (10) is mounted on the frame (1). The input end of the water pump (10) is connected to the interior of the water storage tank (6). The output end of the water pump (10) is connected to the water guide pipe (9).

4. A cooling device for raw materials after steaming and boiling duck feet according to claim 1, characterized in that, A water supply pipe (11) is provided on the side of the sealed tank (2) that is away from the feed inlet of the discharge trough (122) and communicates with the inside of the sealed tank (2). A solenoid valve is provided on the water supply pipe (11) to control the opening and closing of its interior.

5. A raw material cooling device for steamed duck feet according to claim 4, characterized in that, A temperature sensor for monitoring the internal water temperature and a liquid level sensor for monitoring the water level are installed inside the sealed tank (2). A PLC controller is installed on the frame (1). The PLC controller is connected to the temperature sensor, liquid level sensor, solenoid valve and refrigeration component (7).

6. A cooling device for raw materials after steaming and boiling duck feet according to claim 1, characterized in that, The frame (1) is provided with a feed hopper (16) connected to the input end of the feed trough (121), and the frame (1) is provided with a discharge hopper (17) connected to the output end of the discharge trough (122).