Preparation device and method of salted duck egg

Abstract

The application relates to the technical field of food processing, and relates to a preparation device and method of salty duck eggs, which comprise a lower support, a duck egg containing mechanism is arranged on the lower support, and a rolling and turning mechanism is arranged on the duck egg containing mechanism; in the pickling process, the rolling and turning mechanism is driven by a driving mechanism to automatically turn the placed duck eggs, the pollution risk is reduced, the duck egg yolk is arranged at the center of the duck egg, dehydration and hardening of the duck egg yolk caused by contact with the eggshell part are avoided, the pickling quality is improved, the outer rotating mechanism is matched with the turning to slowly stir the brine in the whole closed cylinder, salt in the brine is prevented from being accumulated at the bottom of the closed cylinder, the carbon dioxide concentration in the closed cylinder is collected and detected by a carbon dioxide detector in a carbon dioxide detection box in the pickling process, early warning is conducted when the carbon dioxide concentration exceeds the standard, manual intervention is conducted in time, and the closed cylinder concentration is prevented from being too high in the pickling process to cause brine acidification and affect the pickling effect.

Description

Technical Field

[0001] This invention belongs to the field of food processing technology, and specifically relates to an apparatus and method for preparing salted duck eggs. Background Technology

[0002] Salted duck eggs, also known as pickled duck eggs or salted eggs, are duck eggs that have been processed by pickling with salt. High-quality salted duck eggs have reddish-orange yolks, a delicate and sandy texture, are rich in oil, have a moderate saltiness, and a special rich aroma. The brine soaking method is currently the most successful method in the pickling process of salted duck eggs.

[0003] When duck eggs are pickled in a static state, the yolks will slowly sink to the side closest to the shell due to gravity. If they are not moved for a long time, the yolks against the shell will be severely dehydrated and hardened by the salt. Therefore, the duck eggs need to be taken out of the sealed jar and turned over many times during the pickling process to ensure the quality of the product, which makes the process cumbersome and labor-intensive. At the same time, without external interference, the salt in the brine will naturally sink due to gravity, resulting in a higher brine concentration at the bottom of the container and a lower concentration at the top. This phenomenon will cause the duck eggs soaked in different positions in the container to be in an inconsistent pickling environment, resulting in inconsistent quality of duck eggs pickled in the same batch. Therefore, it is necessary to design a device and method for preparing salted duck eggs. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and rationally designed apparatus and method for preparing salted duck eggs in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A salted duck egg preparation apparatus includes a lower support, an egg holding mechanism on the lower support, a rolling and turning mechanism on the egg holding mechanism, a driving mechanism on the lower support, an external rotating mechanism connected to the driving mechanism, a discharge pipe at the bottom of the lower support, and a slag discharge mechanism on the lower support, the slag discharge mechanism being connected to the driving mechanism.

[0007] The slag discharge mechanism includes an outer pipe fixed to a lower support. A conical filter screen is provided on the top of the inner wall of the outer pipe. A rotating ring is rotatably connected to the top of the outer wall of the outer pipe. Scrapers are evenly distributed on the top of the rotating ring. The scrapers are attached to the outer surface of the conical filter screen. The scrapers are slidably connected to the bottom of the inner wall of the discharge pipe. The discharge pipe is fixedly installed in a through groove opened at the bottom of the lower support. A solenoid valve is provided in the discharge pipe. A sealing mechanism is provided on the rotating ring.

[0008] As a further optimization of the present invention, the sealing mechanism includes a side bracket fixed on the outer wall of the discharge pipe, a locking nut rotatably connected to the side bracket, a locking pin threadedly connected to the locking nut, the locking pin slidably connected in the side bracket, and the bottom end of the locking pin rotatably connected to a pressure ring, the pressure ring rotatably connected to a sealing ring, the sealing ring slidably connected to the discharge pipe, the bottom of the sealing ring pressing against the side ring body, and the side ring body being fixedly sleeved on the rotating ring.

[0009] As a further optimization of the present invention, the duck egg holding mechanism includes a first ring body, side supports are evenly arranged on the side wall of the first ring body, the side supports are stacked and fixed on the lower support in sequence, an outer placement frame is evenly fixed on the top of the first ring body, the outer placement frame is fixed on the central frame, an inner placement frame is evenly arranged on the top of the central frame, and the inner placement frame is fixed on the second ring body.

[0010] As a further optimization of the present invention, the rolling flipping mechanism includes an outer ring body slidably connected between a first ring body and a central frame. A first support is symmetrically arranged at the bottom of the outer ring body. A square strip is slidably connected in the first support. The square strip is slidably connected in a second support. The second support is symmetrically installed at the bottom of an inner ring body. The inner ring body is slidably connected between the central frame and the second ring body. A friction ring is provided at the top of both the inner ring body and the outer ring body.

[0011] As a further optimization of the present invention, a first support column and a second support column are symmetrically arranged on the inner walls of the outer ring body and the inner ring body, respectively. The first support column is slidably connected in the outer limiting groove, which is opened on the central frame. The second support column is slidably connected in the inner limiting groove, which is opened on the outer wall of the second ring body.

[0012] As a further optimization of the present invention, the driving mechanism includes a rotating platform rotatably connected to the lower support, a transmission block fixedly disposed on the top of the rotating platform, the transmission block slidably connected to the bottom of a stacked central column, a square strip slidably connected to the central column, an anti-drift pressure plate sleeved on the central column, the rotating platform fixedly connected to the output end of a reduction gearbox, the reduction gearbox fixedly connected to a drive motor, the drive motor fixedly disposed at the bottom of the lower support, and the output end of the drive motor fixedly connected to the input end of the reduction gearbox.

[0013] As a further optimization of the present invention, the external rotation mechanism includes a central gear fixedly sleeved on the rotating platform, the central gear meshing with an external gear, the external gear being fixedly mounted on a support column, the support column being rotatably connected to a lower support, a transmission wheel being fixedly sleeved at the bottom end of the support column, and a transmission belt being wound around the outside of the transmission wheel, the transmission belt being wound around a rotating ring.

[0014] As a further optimization of the present invention, the external gear meshes with the connecting ring, the connecting ring is fixed at the bottom of the connecting ring, the connecting ring is fixed at the bottom of the closed cylinder, and the closed cylinder rotates in a sealed manner on the lower support. The top of the closed cylinder is fixed with an upper cover, and a brine inlet is provided on one side of the top of the upper cover. Mixing protrusions are evenly provided on the inner wall of the closed cylinder.

[0015] As a further optimization of the present invention, the upper cover is provided with a sensing unit and a carbon dioxide detection box, and a carbon dioxide detector is installed in the carbon dioxide detection box.

[0016] A method for preparing salted duck eggs includes the following steps:

[0017] Step 1, Single-layer assembly: First, place the first and second pillars in the outer and inner limiting grooves respectively. Then, fit the inner and outer rings onto the second ring and the central frame. Fix the first and second pillars to the inner and outer rings from the outside using bolts. Then, evenly fix the inner placement frame onto the central frame and the second ring, so that the inner ring slides between the central frame and the second ring. Evenly fix the outer placement frame onto the first ring and the central frame, so that the outer ring slides between the first ring and the central frame. Insert the square strip into the first and second supports simultaneously, and install limiting blocks at both ends. Fix the first and second supports to the bottom of the outer and inner rings. Finally, insert the central pillar into the square strip to complete the assembly of the single-layer duck egg holding structure.

[0018] Step 2, Loading and Stacking: After cleaning the duck eggs to be pickled, apply high-proof liquor to the surface of the duck eggs and let them dry. Then, use the suction cup loading structure to place the duck eggs on the outer and inner racks. Then, stack the side supports and central pillars in each layer of the holding structure in sequence. The side supports support each layer of duck eggs, while the central pillar at the bottom is fitted onto the transmission block. After stacking, fix the top cover to the sealing cylinder for sealing.

[0019] Step 3, Immersion treatment: After the prepared brine is cooled to room temperature, it is discharged into the sealed cylinder through the brine inlet, so that the brine immerses all the duck eggs from bottom to top. Then the brine inlet is sealed.

[0020] Step 4, Duck Egg Pickling: The duck eggs are sealed and pickled in a closed container. During the pickling process, a sensor unit monitors the temperature and pressure within the container. Every four hours, the drive motor is activated. An external controller controls the drive motor and gearbox, causing the rotating platform to rotate a certain number of times. During rotation, a transmission block drives the stacked central column to rotate. The central column, through square bars, drives the outer and inner rings at the top of the first and second supports to rotate. Through the cooperation of the first support column and the outer limiting groove, the outer ring first spirals upwards, causing the friction ring at the top to extend out of the first ring and the central support and contact the lower surface of the duck egg. Then, the duck egg rotates horizontally, rolling against the friction ring on the outer ring under the limiting action of the outer placement rack. Afterwards, it spirals downwards and retracts into the first ring and the central support, causing the duck egg to fall back into the outer placement rack. Simultaneously, the inner ring rotates. Through the cooperation of the second support column and the inner limiting groove, the inner ring spirals upwards, causing the friction ring at the top of the inner ring to extend out of the central support and the second ring and contact the lower surface of the duck egg. Then, the duck egg rotates horizontally under the limiting action of the inner placement rack. The friction ring on the inner ring body rolls, then spirals down and retracts into the second ring body and the central frame, causing the duck eggs to fall back into the inner rack, automatically completing the flipping action. This eliminates the need to remove the duck eggs for manual flipping, reducing the risk of contamination. During the flipping process, the central gear on the rotating platform meshes with the outer gear, which in turn meshes with the gear ring to rotate the entire closed cylinder and the upper cover. During the rotation of the closed cylinder, the brine in the entire closed cylinder is stirred at a low speed by the evenly distributed mixing protrusions on the inner wall, preventing salt from accumulating at the bottom of the closed cylinder and ensuring that the pickling effect of each layer of duck eggs in the vertical distribution is consistent. During the pickling process, the temperature and pressure sensors in the sensing unit monitor the pickling environment of the duck eggs. The carbon dioxide detection box collects the gas inside the closed cylinder, and the carbon dioxide detector detects the carbon dioxide concentration inside the carbon dioxide detection box. When the carbon dioxide concentration exceeds the standard, the buzzer in the carbon dioxide detector will sound an alarm, allowing for timely manual intervention to prevent the brine from acidifying due to excessive carbon dioxide concentration during the pickling process, which would affect the pickling effect.

[0021] Step 5, Drainage and Discharge: After pickling, the solenoid valve in the discharge pipe opens, and the brine in the sealed cylinder passes through the discharge pipe and the external pipe into the brine recovery device. During the discharge of brine, the sediment in the water is intercepted by the conical filter screen. At the same time, during the discharge process, the drive motor drives the rotating table to rotate through the reduction gearbox. During the rotation, the sealed cylinder and duck eggs rotate through the duck egg holding mechanism and the external rotating mechanism. With the falling brine, the sediment is prevented from sticking to the sealed cylinder and eggshells. At the same time, when the rotating table rotates, the transmission wheel at the bottom of the support column is driven to rotate through the external gear. The transmission belt pulls the rotating ring to rotate. When the rotating ring rotates, the conical surface of the conical filter screen is cleaned by the scraper at the top. With the falling brine, the sediment gradually slides down along the conical surface into the gap between the scrapers, preventing the sediment from clogging the external pipe. After the discharge is completed, the duck eggs in the duck egg holding mechanism are taken out, wiped dry, and the pickling is completed.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. In the pickling process of this invention, the drive motor is activated periodically. An external controller drives the drive motor and gearbox to rotate the rotating table a certain number of times. During rotation, the transmission block drives the stacked central column to rotate. The central column, through square bars, drives the outer and inner rings at the top of the first and second supports to rotate. Through the cooperation of the first support column and the outer limiting groove, the outer ring first spirals upwards during rotation, causing the friction ring at the top to extend out of the first ring and the central support, contacting the lower surface of the duck egg. Then it rotates horizontally, causing the duck egg to roll under the cooperation of the outer support and the friction ring. Finally, it spirals downwards and retracts into the first ring and... In the central rack, the duck egg falls back into the outer rack. Similarly, the inner ring rotates, and through the cooperation of the second pillar and the inner limiting groove, it spirals upward, causing the friction ring at the top of the inner rack to extend out of the central rack and the second ring and contact the lower surface of the duck egg. Then it rotates horizontally, and the duck egg rolls under the cooperation of the inner rack and the friction ring. After that, it spirals downward and retracts into the second ring and the central rack, causing the duck egg to fall back into the inner rack. The flipping action is completed automatically, eliminating the need to remove the duck egg for manual flipping. This reduces the risk of contamination and keeps the duck egg yolk in the center of the egg, preventing the yolk from sinking down and contacting the eggshell, thus dehydrating and hardening, and improving the pickling quality.

[0024] 2. During the pickling process of this invention, the temperature sensor and pressure sensor in the sensing unit monitor the pickling environment of the duck eggs, and the carbon dioxide detector in the carbon dioxide detection box detects the carbon dioxide concentration inside the sealed cylinder. When the carbon dioxide concentration exceeds the standard, the buzzer in the carbon dioxide detector will issue an early warning and allow for timely manual intervention to avoid excessive concentration in the sealed cylinder during the pickling process, which could lead to acidification of the brine and affect the pickling effect.

[0025] 3. During the duck egg turning process of this invention, the central gear on the rotating platform meshes with and drives the outer gear to rotate. The outer gear meshes with the gear ring to make the entire closed cylinder and the upper cover rotate. During the rotation of the closed cylinder, the brine in the entire closed cylinder is stirred at a low speed by the mixing protrusions evenly arranged on the inner wall, so as to avoid the salt in the brine from accumulating at the bottom of the closed cylinder and ensure that the pickling effect of each layer of duck eggs distributed in the longitudinal direction is consistent.

[0026] 4. After the pickling process is completed, the solenoid valve in the discharge pipe opens, and the brine in the sealed cylinder passes through the discharge pipe and the external pipe into the brine recovery device. During the discharge of brine, the sediment in the water is intercepted by the conical filter screen. At the same time, during the discharge process, the drive motor drives the rotating table to rotate through the reduction gearbox. During the rotation, the duck egg holding mechanism and the external rotation mechanism cause the sealed cylinder and duck eggs to rotate. With the help of the falling brine, the sediment is prevented from sticking to the sealed cylinder and eggshells. At the same time, the rotating table drives the transmission wheel at the bottom of the support column to rotate through the external gear. The transmission belt pulls the rotating ring to rotate. When the rotating ring rotates, the top scraper cleans the conical surface of the conical filter screen. With the help of the falling brine, the sediment gradually slides down along the conical surface into the gap between the scrapers, preventing the sediment from clogging the external pipe. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram showing the location of the slag discharge mechanism of the present invention;

[0029] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0030] Figure 4 This is a schematic diagram of the stacked structure of the duck egg holding mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the rolling flipping mechanism of the present invention;

[0032] Figure 6 This is an exploded view of the rolling flipping mechanism of the present invention;

[0033] Figure 7 This is a schematic diagram of the installation position of the discharge pipe of the present invention;

[0034] Figure 8 This is a partial exploded view of the structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the installation position of the conical filter screen of the present invention;

[0036] Figure 10 This is a three-dimensional view of the outer and inner placement racks of the present invention;

[0037] Figure 11 This is a flowchart of the method of the present invention.

[0038] In the diagram: 1. Lower support; 2. Duck egg holding mechanism; 3. Rolling and turning mechanism; 4. Drive mechanism; 5. Outer rotation mechanism; 6. Discharge pipe; 7. Slag discharge mechanism; 8. Sensing unit; 9. Brine inlet; 10. Carbon dioxide detection box; 21. Side support; 22. First ring; 23. Outer placement rack; 24. Central frame; 25. Inner placement rack; 26. Second ring; 31. Outer ring; 32. First support; 33. Square strip; 34. Second support; 35. Inner ring; 36. Friction ring; 37. First support column; 38. Second support column; 39. Outer limiting groove ; 40. Inner limiting groove; 41. Rotating table; 42. Transmission block; 43. Central column; 44. Gearbox; 45. Drive motor; 46. Anti-drift pressure plate; 51. Central gear; 52. External gear; 53. Support column; 54. Transmission wheel; 55. Transmission belt; 56. Gear ring; 57. Connecting ring; 58. Enclosed cylinder; 59. Upper cover; 60. Mixing protrusion; 70. Conical filter screen; 71. External connecting pipe; 72. Rotating ring; 73. Scraper; 74. Side bracket; 75. Locking nut; 76. Locking column; 77. Pressure ring; 78. Sealing ring; 79. Side ring body. Detailed Implementation

[0039] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0040] Example: Please refer to Figure 1-10 A salted duck egg preparation apparatus includes a lower support 1, an egg holding mechanism 2 for supporting duck eggs on the lower support 1, a rolling and turning mechanism 3 on the egg holding mechanism 2 for periodically turning the duck eggs, a drive mechanism 4 on the lower support 1, and an external rotation mechanism 5 connected to the drive mechanism 4. The drive mechanism 4 provides power to the rolling and turning mechanism 3 and the external rotation mechanism 5. During the turning of the duck eggs, the external rotation mechanism 5 agitates the brine in the entire apparatus, making the components in the brine more evenly distributed and preventing salt from accumulating at the bottom. A discharge pipe 6 for discharging brine is provided at the bottom of the lower support 1, and a slag discharge mechanism 7 is provided on the lower support 1. The slag discharge mechanism 7 is connected to the drive mechanism 4 to prevent sediment from accumulating and clogging the discharge pipe 6 during the brine discharge process.

[0041] Please see Figure 3-6 and Figure 10The duck egg holding mechanism 2 includes a first ring body 22, of which there are three, arranged in parallel vertically. Each first ring body 22 is connected to six side supports 21 along its circumference. The side supports 21 arranged vertically are stacked by grooves at the bottom and protrusions at the top, and the groove at the bottom of the bottommost side support 21 fits onto the protrusion at the top of the lower support 1. An outer placement frame 23 is uniformly fixed on the top of the first ring body 22. The outer placement frame 23 is fixed on the central frame 24. An inner placement frame 25 is uniformly arranged on the top of the central frame 24. The inner placement frame 25 is fixed on the second ring body 26. Both the outer placement frame 23 and the inner placement frame 25 are composed of an external support frame and rolling wheels rotatably connected between the support frames. After the duck eggs are placed on the outer placement frame 23 and the inner placement frame 25, they are supported by rolling wheels.

[0042] Please see Figure 3-6 The rolling flipping mechanism 3 includes an outer ring 31 slidably connected between the first ring 22 and the central frame 24. A first bracket 32 ​​is symmetrically arranged at the bottom of the outer ring 31. A square strip 33 is slidably connected in the first bracket 32. The square strip 33 is slidably connected in a second bracket 34, and two second brackets 34 are provided, symmetrically installed at the bottom of the inner ring 35. Limiting plates are fixedly connected to both ends of the square strip 33 by screws. After installation, the limiting plates at both ends prevent the two ends from slipping off the first bracket 32. The inner ring 35 is slidably connected between the central frame 24 and the second ring 26, and is disengaged from the second support 34. Both the inner ring 35 and the outer ring 31 have friction rings 36 made of elastic material at their tops. The inner walls of the outer ring 31 and the inner ring 35 are symmetrically provided with a first support 37 and a second support 38, respectively. The first support 37 is slidably connected in the outer limiting groove 39, which is located on the central frame 24. The second support 38 is slidably connected in the inner limiting groove 40, which is located in the first... On the outer wall of the two-ring body 26, both the outer limiting groove 39 and the inner limiting groove 40 are composed of two parallel grooves and a spiral groove connecting the parallel grooves. Under normal pickling conditions, the first support 37 and the second support 38 on the outer ring body 31 and the inner ring body 35 are respectively located in the lower parallel grooves of the outer limiting groove 39 and the inner limiting groove 40. During rotation, the first support 37 moves to the spiral groove of the outer limiting groove 39 and pulls the outer ring body 31 upwards, entering the parallel groove at the top. The friction at the top of the outer ring body 31... Ring 36 contacts the duck egg and, as it rotates, causes the duck egg to roll. After re-entering the spiral groove of the outer limiting groove 39, it pulls the outer ring body 31 to rotate and move downward, separating it from the duck egg. The second pillar 38 rotates to the spiral groove of the inner limiting groove 40 and pulls the inner ring body 35 upward, entering the parallel groove at the top. This causes the friction ring 36 at the top of the inner ring body 35 to contact the duck egg and, as it rotates, causes the duck egg to roll. When the second pillar 38 re-enters the spiral groove of the inner limiting groove 40, it pulls the inner ring body 35 downward, separating it from the duck egg.

[0043] Please see Figure 1-8 The driving mechanism 4 includes a rotating platform 41 rotatably connected to the lower support 1. A square transmission block 42 is fixedly installed on the top of the rotating platform 41. The transmission block 42 is slidably connected to the bottom of three stacked central pillars 43. The stacked central pillars 43 are rotated and limited by the cooperation of the protrusions on their tops and the grooves on their bottoms. A square strip 33 is slidably connected to the groove at the bottom of the central pillar 43. An anti-floating pressure plate 46 is sleeved on the central pillar 43. During the pickling process, the anti-floating pressure plate 46 can prevent the duck eggs from floating and keep the duck eggs in the outer rack 23 and the inner rack 25. The rotating platform 41 is fixedly connected to the output end of the reduction gearbox 44. The reduction gearbox 44 is fixedly connected to the drive motor 45. The drive motor 45 is fixed to the bottom of the lower support 1. The output end of the drive motor 45 is fixedly connected to the input end of the reduction gearbox 44. The drive motor 45 can drive the rotating platform 41 to rotate at a low speed through the reduction gearbox 44, and then drive the stacked central pillars 43 and the square strip 33 to rotate through the rotating platform 41.

[0044] Please see Figure 1-4 The outer rotating mechanism 5 includes a central gear 51 fixedly sleeved on the rotating platform 41. The central gear 51 meshes with an external gear 52, which is fixedly mounted on a support column 53. The support column 53 is rotatably connected to the lower support 1 via bearings. The external gear 52 meshes with a gear ring 56, which is locked and fixed to the bottom of a connecting ring 57 by a screw. The connecting ring 57 is fixed to the bottom of a closed cylinder 58. Observation windows for observing the internal conditions are evenly arranged on the side wall of the closed cylinder 58. The closed cylinder 58 rotates and seals on the lower support 1. An upper cover 59 is fixed to the top of the closed cylinder 58. A sensing unit 8 and a carbon dioxide detection box 10 are installed on the upper cover 59. A carbon dioxide detector is installed in the carbon dioxide detection box 10, and a buzzer for abnormal early warning is installed in the carbon dioxide detector. The sensing unit 8 includes a temperature sensor and a pressure sensor. Sensors and pressure sensors are used to monitor the duck egg pickling environment. The carbon dioxide detection box 10 collects the gas inside the sealed cylinder 58. The carbon dioxide detector periodically checks the carbon dioxide concentration inside the carbon dioxide detection box 10. When the carbon dioxide concentration exceeds the standard, an alarm is triggered by the buzzer in the carbon dioxide detector, allowing for timely manual intervention. This prevents the carbon dioxide concentration from being too high during the pickling process, which could lead to acidification of the brine and affect the pickling effect. An excessively high carbon dioxide concentration can also indicate that the content of harmful bacteria inside the brine exceeds the standard, requiring timely manual intervention. A brine inlet 9 is provided on one side of the top of the upper cover 59. The brine inlet 9 is used to add brine for pickling into the sealed cylinder 58. Mixing protrusions 60 are evenly arranged on the inner wall of the sealed cylinder 58. During the rotation of the sealed cylinder 58, the brine inside can be stirred at a low speed through the mixing protrusions 60, making the components in the brine more uniform.

[0045] Please see Figure 1-2 and Figure 7-9 The slag discharge mechanism 7 includes an outer pipe 71 fixed to the lower support 1. A conical filter screen 70 for intercepting sediment is installed on the top of the inner wall of the outer pipe 71. The outer pipe 71 connects to a brine recovery device. After the brine is filtered to remove sediment, it undergoes recovery testing and can be reused in the pickling process. A rotating ring 72 is rotatably connected to the top of the outer wall of the outer pipe 71. A transmission wheel 54 is fixedly sleeved at the bottom of the support column 53, and a transmission belt 55 is wound around the outside of the transmission wheel 54. The transmission belt 55 is wound around the rotating ring 72. During the rotation of the support column 53, it can... The rotating ring 72 is driven to rotate by the transmission belt 55 and the transmission wheel 54. Scrapers 73 are evenly distributed on the top of the rotating ring 72, and these scrapers 73 are attached to the outer surface of the conical filter screen 70. The scrapers 73 are slidably connected to the bottom of the inner wall of the discharge pipe 6. As the rotating ring 72 rotates, the scrapers 73 can intercept sediment along the upper surface of the conical filter screen 70. The discharge pipe 6 is fixedly installed in a through groove at the bottom of the lower support 1, and a solenoid valve is installed in the discharge pipe 6 to control the opening and closing of the discharge pipe 6. The rotating ring 72 is equipped with… The sealing mechanism includes a side bracket 74 fixed to the outer wall of the discharge pipe 6. A locking nut 75 is rotatably connected to the side bracket 74. The locking nut 75 is threadedly connected to a locking pin 76. The locking pin 76 is slidably connected in the side bracket 74, and its bottom end is rotatably connected to a pressure ring 77. The pressure ring 77 is rotatably connected to a sealing ring 78, which is slidably connected to the discharge pipe 6. The bottom of the sealing ring 78 presses against a side ring body 79, which is fixedly sleeved on a rotating ring 72. During normal use, the locking nut 75 will lock the locking pin 76. The sealing ring 78 is pressed tightly against the pressure ring 77 and the sealing ring 78, so that the bottom of the sealing ring 78 presses against the sealing gasket on the side ring body 79. At this time, the discharge pipe 6 and the external pipe 71 form a complete pipeline structure. When the rotating ring 72 rotates, the top scraper 73 scrapes the conical surface of the conical filter screen 70. With the falling brine, the sediment gradually slides down the conical surface into the gap between the scrapers 73. After the discharge is completed, the locking nut 75 is rotated to move the locking pin 76 upward. Then the sealing ring 78 can be lifted upward to treat the sediment accumulated between the scrapers 73.

[0046] Please see Figure 11 A method for preparing salted duck eggs includes the following steps:

[0047] Step 1, Single-layer assembly: First, place the first support column 37 and the second support column 38 in the outer limiting groove 39 and the inner limiting groove 40 respectively. Then, fit the inner ring body 35 and the outer ring body 31 onto the second ring body 26 and the central frame 24. After fixing the first support column 37 and the second support column 38 to the inner ring body 35 and the outer ring body 31 from the outside with bolts, evenly fix the inner placement frame 25 on the central frame 24 and the second ring body 26, so that the inner ring body 35 is slidably connected between the central frame 24 and the second ring body 26. The outer frame 23 is evenly fixed on the first ring 22 and the central frame 24, so that the outer ring 31 is slidably connected between the first ring 22 and the central frame 24. The square strip 33 is simultaneously inserted into the first bracket 32 ​​and the second bracket 34, and limiting blocks are installed at both ends. The first bracket 32 ​​and the second bracket 34 are fixed to the bottom of the outer ring 31 and the inner ring 35. The central column 43 is inserted into the square strip 33. Finally, the side support 21 is fixed on the side wall of the first ring 22 to complete the assembly of the single-layer duck egg holding structure.

[0048] Step 2, Loading and Stacking: After cleaning the duck eggs to be pickled, apply high-proof liquor to the surface of the duck eggs and let them dry. Then, use the suction cup loading structure to place the duck eggs on the outer rack 23 and the inner rack 25. Then, stack the side supports 21 and the central column 43 in each layer of the holding structure in sequence. The side supports 21 support each layer of duck eggs, while the central column 43 at the bottom is fitted onto the transmission block 42. After stacking, fix the upper cover 59 to the sealing cylinder 58 to seal it.

[0049] Step 3, Immersion treatment: After the prepared brine is cooled to room temperature, it is discharged into the closed cylinder 58 through the brine inlet 9, so that the brine immerses all the duck eggs from bottom to top. Then the brine inlet 9 is sealed.

[0050] Step 4, Duck Egg Pickling: Duck eggs are sealed and pickled in a closed cylinder 58. During the pickling process, the temperature and pressure inside the closed cylinder 58 are monitored by the sensor unit 8. Every four hours during pickling, the drive motor 45 is activated. An external controller drives the drive motor 45 and the reduction gearbox 44 to rotate the rotating table 41 a certain number of revolutions. During rotation, the transmission block 42 drives the stacked central column 43 to rotate. The central column 43, through the square bar 33, drives the outer ring 31 and inner ring 35 at the top of the first support 32 and the second support 34 to rotate. Through the cooperation of the first pillar 37 and the outer limiting groove 39, the outer ring 31 rotates... First, the inner ring body 35 spirals upward, causing the friction ring 36 at the top to extend out of the first ring body 22 and the central frame 24 and contact the lower surface of the duck egg. Then, it rotates horizontally. Under the limiting action of the outer placement frame 23, the duck egg rubs against the friction ring 36 on the outer ring body 31, thus rolling. Then, the outer ring body 31 spirals downward and retracts into the first ring body 22 and the central frame 24, causing the duck egg to fall back into the outer placement frame 23. Similarly, the inner ring body 35 rotates, and through the cooperation of the second support column 38 and the inner limiting groove 40, it spirals upward, causing the friction ring 36 at the top of the inner ring body 35 to extend out of the central frame 24 and the second ring body 26 and contact the lower surface of the duck egg. Then, the inner ring body 35 rotates horizontally. As the duck eggs rotate, they rub against the friction ring 36 on the inner ring 35 under the limiting action of the inner placement rack 25, thus rolling. Then, the inner ring 35 spirals down and retracts into the second ring 26 and the central rack 24, causing the duck eggs to fall back into the inner placement rack 25, automatically completing the flipping action. This eliminates the need to remove the duck eggs for manual flipping, reducing the risk of contamination. During the flipping process, the central gear 51 on the rotating platform 41 drives the external gear 52 to rotate. The external gear 52 meshes with the gear ring 56, causing the entire closed cylinder 58 and the upper cover 59 to rotate. During the rotation of the closed cylinder 58, the mixing protrusions 60 evenly arranged on the inner wall of the cylinder cause the eggs to rotate. The brine in each sealed cylinder 58 is stirred at a low speed to prevent salt from accumulating at the bottom of the sealed cylinder 58, ensuring that the pickling effect of each layer of duck eggs distributed vertically is consistent. During the pickling process, the temperature sensor and pressure sensor in the sensing unit 8 monitor the pickling environment of the duck eggs. The carbon dioxide detection box 10 collects the gas inside the sealed cylinder 58, and the carbon dioxide detector detects the carbon dioxide concentration inside the carbon dioxide detection box 10. When the carbon dioxide concentration exceeds the standard, the buzzer in the carbon dioxide detector will issue an early warning and allow for timely manual intervention to prevent the brine from acidifying due to excessively high concentration in the sealed cylinder 58 during the pickling process, which would affect the pickling effect.

[0051] Step 5, Drainage and Discharge: After pickling, the solenoid valve in the discharge pipe 6 is opened, and the brine in the closed cylinder 58 passes through the discharge pipe 6 and the outer pipe 71 into the brine recovery device. During the discharge of brine, the sediment in the water is intercepted by the conical filter screen 70. At the same time, during the discharge process, the drive motor 45 drives the rotating table 41 to rotate through the reduction gearbox 44. During the rotation, the closed cylinder 58 and the duck eggs are rotated through the duck egg holding mechanism 2 and the outer rotating mechanism 5. With the falling brine, the sediment is prevented from sticking to the closed cylinder 58 and the eggshell. At the same time, the rotating table 41 drives the transmission wheel 54 at the bottom of the support column 53 to rotate through the external gear 52. The transmission belt 55 pulls the rotating ring 72 to rotate. When the rotating ring 72 rotates, the top scraper 73 cleans the conical surface of the conical filter screen 70. With the falling brine, the sediment gradually slides down along the conical surface into the gap between the scrapers 73, preventing the sediment from clogging the outer pipe 71. After the discharge is completed, the duck eggs in the duck egg holding mechanism 2 are taken out, and the pickling is completed.

[0052] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A device for preparing salted duck eggs comprising a lower support (1), characterized in that: The lower support (1) is provided with a duck egg holding mechanism (2), the duck egg holding mechanism (2) is provided with a rolling flipping mechanism (3), the lower support (1) is provided with a driving mechanism (4), and the driving mechanism (4) is connected to an external rotation mechanism (5). The bottom of the lower support (1) is provided with a discharge pipe (6), the lower support (1) is provided with a slag discharge mechanism (7), and the slag discharge mechanism (7) is connected to the driving mechanism (4). The slag discharge mechanism (7) includes an outer pipe (71) fixed on the lower support (1). A conical filter screen (70) is provided on the top of the inner wall of the outer pipe (71). A rotating ring (72) is rotatably connected to the top of the outer wall of the outer pipe (71). A scraper (73) is evenly provided on the top of the rotating ring (72). The scraper (73) is attached to the outer surface of the conical filter screen (70). The scraper (73) is slidably connected to the bottom of the inner wall of the discharge pipe (6). The discharge pipe (6) is fixedly installed in the through groove opened at the bottom of the lower support (1). A solenoid valve is provided in the discharge pipe (6). A sealing mechanism is provided on the rotating ring (72). The duck egg holding mechanism (2) includes a first ring body (22), an outer placement rack (23) and an inner placement rack (25). Side supports (21) are evenly arranged on the side wall of the first ring body (22). The side supports (21) are stacked and fixed on the lower support (1) in sequence. The outer placement rack (23) is fixed on the top of the first ring body (22) and the central rack (24). The inner placement rack (25) is fixed on the top of the central rack (24) and the second ring body (26). The rolling flipping mechanism (3) includes an outer ring (31) slidably connected between a first ring (22) and a central frame (24). A first bracket (32) is symmetrically arranged at the bottom of the outer ring (31). A square strip (33) is slidably connected in the first bracket (32). The square strip (33) is slidably connected in a second bracket (34). The second bracket (34) is symmetrically installed at the bottom of an inner ring (35). The inner ring (35) is slidably connected between the central frame (24) and the second ring (26). Between them, friction rings (36) are provided at the top of both the inner ring body (35) and the outer ring body (31); a first support column (37) and a second support column (38) are symmetrically provided on the inner walls of the outer ring body (31) and the inner ring body (35), respectively. The first support column (37) is slidably connected in the outer limiting groove (39), which is opened on the central frame (24). The second support column (38) is slidably connected in the inner limiting groove (40), which is opened on the outer wall of the second ring body (26).

2. The device for preparing salted duck eggs according to claim 1, characterized in that: The sealing mechanism includes a side bracket (74) fixed on the outer wall of the discharge pipe (6), a locking nut (75) rotatably connected to the side bracket (74), a locking pin (76) threadedly connected to the locking nut (75), the locking pin (76) slidably connected in the side bracket (74), and the bottom end of the locking pin (76) rotatably connected to the pressure ring (77), the pressure ring (77) rotatably connected to the sealing ring (78), the sealing ring (78) slidably connected to the discharge pipe (6), the bottom of the sealing ring (78) pressing against the side ring body (79), and the side ring body (79) fixedly sleeved on the rotating ring (72).

3. The device for preparing salted duck eggs according to claim 1, characterized in that: The drive mechanism (4) includes a rotating platform (41) rotatably connected to the lower support (1). A transmission block (42) is fixedly installed on the top of the rotating platform (41). The transmission block (42) is slidably connected to the bottom of the stacked central column (43). The central column (43) is slidably connected to a square strip (33). An anti-drift pressure plate (46) is sleeved on the central column (43). The rotating platform (41) is fixedly connected to the output end of the reduction gearbox (44). The reduction gearbox (44) is fixedly connected to the drive motor (45). The drive motor (45) is fixed to the bottom of the lower support (1). The output end of the drive motor (45) is fixedly connected to the input end of the reduction gearbox (44).

4. The salted duck egg preparation apparatus according to claim 3, characterized in that: The external rotating mechanism (5) includes a central gear (51) fixedly sleeved on the rotating platform (41), the central gear (51) meshing with an external gear (52), the external gear (52) being fixedly mounted on a support column (53), the support column (53) being rotatably connected to a lower support (1), a transmission wheel (54) being fixedly sleeved at the bottom end of the support column (53), and a transmission belt (55) being wound around the outside of the transmission wheel (54), the transmission belt (55) being wound around a rotating ring (72).

5. The device for preparing salted duck eggs according to claim 4, characterized in that: The external gear (52) meshes with the connecting gear ring (56), the gear ring (56) is fixed at the bottom of the connecting ring (57), the connecting ring (57) is fixed at the bottom of the closed cylinder (58), and the closed cylinder (58) rotates on the lower support (1). The top of the closed cylinder (58) is fixed with an upper cover (59), and a brine inlet (9) is provided on one side of the top of the upper cover (59). Mixing protrusions (60) are evenly provided on the inner wall of the closed cylinder (58).

6. The device for preparing salted duck eggs according to claim 5, characterized in that: The upper cover (59) is provided with a sensing unit (8) and a carbon dioxide detection box (10), and a carbon dioxide detector is installed in the carbon dioxide detection box (10).

7. A method for preparing salted duck eggs, implemented based on the device for preparing salted duck eggs according to claim 6, characterized in that, Includes the following steps: Step 1, Single-layer assembly: First, place the first support column (37) and the second support column (38) in the outer limiting groove (39) and the inner limiting groove (40) respectively. Then, fit the inner ring body (35) and the outer ring body (31) onto the second ring body (26) and the central frame (24). After fixing the first support column (37) and the second support column (38) to the inner ring body (35) and the outer ring body (31) from the outside with bolts, evenly fix the inner placement frame (25) on the central frame (24) and the second ring body (26), so that the inner ring body (35) is slidably connected between the central frame (24) and the second ring body (26). The outer frame (23) is evenly fixed on the first ring (22) and the central frame (24), so that the outer ring (31) is slidably connected between the first ring (22) and the central frame (24). The square strip (33) is inserted into the first bracket (32) and the second bracket (34) at the same time, and the limiting blocks are installed at both ends. The first bracket (32) and the second bracket (34) are fixed at the bottom of the outer ring (31) and the inner ring (35). The central column (43) is inserted into the square strip (33). Finally, the side support (21) is fixed on the side wall of the first ring (22) to complete the assembly of the single-layer duck egg holding structure. Step 2, loading and stacking: After cleaning the duck eggs to be pickled, apply high-proof liquor to the surface of the duck eggs and let them dry. Then, use the suction cup loading structure to place the duck eggs on the outer rack (23) and the inner rack (25). Then, stack the side supports (21) and the central column (43) in each layer of the holding structure in sequence. While supporting each layer of duck eggs with the side supports (21), the central column (43) at the bottom is put on the transmission block (42). After stacking, fix the top cover (59) on the closed cylinder (58) to seal it. Step 3, Immersion treatment: After the prepared brine is cooled to room temperature, it is discharged into the closed cylinder (58) through the brine inlet (9) so that the brine can immerse all the duck eggs from bottom to top. Then the brine inlet (9) is sealed. Step 4, duck egg pickling: The eggs are sealed and pickled in a closed cylinder (58). During the pickling process, the temperature and pressure inside the closed cylinder (58) are detected by a sensing unit (8). The drive motor (45) is started every four hours during the pickling process. An external controller drives the drive motor (45) and the reduction gearbox (44) to rotate the rotating table (41) a certain number of times. During rotation, the transmission block (42) drives the stacked central column (43) to rotate. The central column (43) drives the outer ring (31) and inner ring (35) at the top of the first support (32) and the second support (34) to rotate via square bars (33). The support column (37) and the outer limiting groove (39) work together. During the rotation of the outer ring body (31), it will first spiral upward so that the friction ring (36) at the top extends out of the first ring body (22) and the central frame (24) and contacts the lower surface of the duck egg. Then it rotates horizontally. Under the limiting action of the outer placement frame (23), the duck egg rubs against the friction ring (36) on the outer ring body (31) to generate rolling. Then the outer ring body (31) spirals downward and retracts into the first ring body (22) and the central frame (24), so that the duck egg falls back into the outer placement frame (23). Similarly, the inner ring body (35) rotates, and through the second support column (38) and the inner limiting groove (40) In coordination, the spiral moves upward, causing the friction ring (36) at the top of the inner ring (35) to extend out of the central frame (24) and the second ring (26) and contact the lower surface of the duck egg. Then, the inner ring (35) rotates horizontally, and the duck egg, under the limiting action of the inner placement frame (25), rubs against the friction ring (36) on the inner ring (35) and rolls. Then, the inner ring (35) spirals downward and retracts into the second ring (26) and the central frame (24), causing the duck egg to fall back into the inner placement frame (25), automatically completing the flipping action. During the flipping process, the central gear (51) on the rotating platform (41) drives the external gear (52) to rotate. The wheel (52) rotates the entire closed cylinder (58) and the upper cover (59) by meshing with the toothed ring (56). During the rotation of the closed cylinder (58), the brine in the entire closed cylinder (58) is stirred at low speed by the mixing protrusions (60) evenly arranged on the inner wall. During the pickling process, the temperature sensor and pressure sensor in the sensing unit (8) monitor the pickling environment of the duck eggs. The carbon dioxide detection box (10) collects the gas inside the closed cylinder (58). The carbon dioxide detector detects the carbon dioxide concentration inside the carbon dioxide detection box (10). When the carbon dioxide concentration exceeds the standard, the buzzer in the carbon dioxide detector will issue an early warning. Step 5, Drainage and Discharge: After pickling, the solenoid valve in the discharge pipe (6) is opened, and the brine in the sealed cylinder (58) passes through the discharge pipe (6) and the outer pipe (71) into the brine recovery device. During the discharge of brine, the sediment in the water is intercepted by the conical filter screen (70). At the same time, during the discharge process, the drive motor (45) drives the rotating table (41) to rotate through the reduction gearbox (44). During the rotation, the duck egg holding mechanism (2) and the outer rotating mechanism (5) make the sealed cylinder (58) and the duck eggs rotate, which, together with the descending brine, prevents the sediment from sticking to the sealed cylinder. On the closed cylinder (58) and the eggshell, the rotating platform (41) drives the transmission wheel (54) at the bottom of the support column (53) to rotate through the external gear (52). The transmission belt (55) pulls the rotating ring (72) to rotate. When the rotating ring (72) rotates, it scrapes the conical surface of the conical filter screen (70) through the scraper (73) at the top. With the falling brine, the sediment gradually slides down the conical surface into the gap between the scrapers (73) to prevent the sediment from clogging the outer pipe (71). After the discharge is completed, the duck eggs in the duck egg holding mechanism (2) are taken out to complete the pickling.

Images