Salted duck egg storage temperature and humidity regulation and control device

By setting vents and extraction channels in the salted duck egg storage device, combined with temperature and humidity control and weighing monitoring, the problems of gas accumulation and uneven humidity during the salted duck egg pickling process were solved, achieving efficient pickling and quality improvement of salted duck eggs.

CN224232129UActive Publication Date: 2026-05-12GUANGXI HETIAN BAOLONG FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI HETIAN BAOLONG FOOD CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the existing salted duck egg pickling process, the accumulation of gas and uneven humidity cause the salted duck eggs to spoil in taste and lead to the growth of anaerobic bacteria, which affects product quality.

Method used

A temperature and humidity control device for storing salted duck eggs was designed. By setting an exhaust vent and an air extraction channel at the bottom of the box, combined with a temperature and humidity control unit and an air extraction device, the device can extract and regulate the humidity of the gas inside the box, prevent gas accumulation, and automatically increase humidity by monitoring the dryness of the soil through a weighing unit.

Benefits of technology

It effectively prevents gas accumulation, maintains stable humidity in the pickling environment, avoids the salted duck eggs from going bad and the growth of anaerobic bacteria, and improves the pickling effect and quality of the salted duck eggs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a temperature and humidity regulation and control device for salted duck egg storage, and relates to the technical field of egg processing equipment, the side wall of a cabinet body is provided with an opening, a cabinet door is rotatably installed at the edge of the opening, a partition plate array is installed in the cabinet body, and a temperature and humidity control unit is installed at the top of the cabinet body. The two ends of the gas conveying pipeline are connected with the temperature and humidity control unit and the cavity respectively, the weighing unit is installed on the partition plate, the box body is placed on the weighing unit, exhaust holes are formed in the bottom of the box body, an air exhaust channel is formed in the partition plate, one end of the air exhaust channel is connected with the cavity, and the air exhaust equipment is installed on the outer side wall of the cabinet body. The salted duck egg pickling device overcomes the defect that in the existing salted duck egg pickling process, a small amount of gas generated in the pickling process is easily deposited at the bottom of a plastic basket and possibly permeates into the salted duck eggs, so that the salted duck eggs become tasty. Meanwhile, a non-circulating environment also possibly causes the growth of anaerobic bacteria and influences the salting of the salted duck eggs.
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Description

Technical Field

[0001] This utility model belongs to the field of egg processing equipment, and specifically relates to a temperature and humidity control device for storing salted duck eggs. Background Technology

[0002] The production of salted duck eggs involves screening, cleaning, soaking in white wine, and coating with mud for curing. After curing, the mud on the surface of the duck eggs is cleaned off, and the eggs are sorted again. Then, the salted duck eggs are cracked open, and the yolks and egg whites are separated in a centrifuge. The separated yolks need to be cleaned and baked before final grading and packaging. Currently, the mud-coating process for salted duck eggs requires storage in a specific temperature and humidity environment for a period of time. The required temperature and humidity vary at different stages to ensure optimal curing. However, currently, salted duck eggs are typically piled in plastic crates lined with cling film and stored in a temperature- and humidity-controlled warehouse. However, a small amount of gas is produced during curing, and this gas can easily accumulate at the bottom of the plastic crates, potentially seeping into the eggs and causing them to spoil. A stagnant environment can also promote the growth of anaerobic bacteria, affecting the curing process. A poorly ventilated environment can cause the soil on the surface of salted duck eggs to dry at different rates, resulting in an unsuitable humidity environment for the salted duck eggs at different stages of pickling, which in turn leads to a decline in the quality of the salted duck egg product.

[0003] Therefore, a temperature and humidity control device for storing salted duck eggs is needed. Utility Model Content

[0004] The purpose of this invention is to provide a temperature and humidity control device for storing salted duck eggs, thereby overcoming the shortcomings of existing salted duck egg pickling processes. In these processes, a small amount of gas generated during pickling tends to accumulate at the bottom of the plastic basket, potentially seeping into the salted duck eggs and causing them to spoil. Furthermore, a stagnant environment can also promote the growth of anaerobic bacteria, affecting the pickling process. The specific technical solution is as follows:

[0005] A temperature and humidity control device for storing salted duck eggs includes a cabinet, a cabinet door, a temperature and humidity control unit, partitions, a box, a weighing unit, an air supply pipe, an air extraction pipe, and an air extraction device. The cabinet has an opening on its side wall, and the cabinet door is rotatably mounted on the edge of the opening. An array of partitions is installed inside the cabinet, dividing the interior into multiple chambers. The temperature and humidity control unit is installed on the top of the cabinet. The air supply pipe is connected at both ends to the temperature and humidity control unit and the chambers, respectively. The weighing unit is installed on the partitions, and the box is placed on the weighing unit. An exhaust vent is provided at the bottom of the box. An air extraction channel is provided within the partitions, with one end of the channel connected to a chamber. The air extraction device is installed on the outer side wall of the cabinet, and one end of the air extraction pipe is connected to the air extraction device, while the other end is connected to the other end of the air extraction channel.

[0006] Preferably, the temperature and humidity control unit includes a protective shell, an air compressor, a first reversing valve, a second reversing valve, an exhaust pipe, a water tank, and a first air guide pipe. The protective shell is installed on the top of the cabinet. The air compressor and the water tank are both installed inside the protective shell. The air compressor is connected to one end of the air supply pipeline. The first reversing valve is installed on the air supply pipeline. One end of the first air guide pipe is connected to the first reversing valve. The other end of the first air guide pipe passes through the water tank and is located inside the water tank near the bottom. One end of the exhaust pipe is connected to the top of the water tank. The second reversing valve is installed on the air supply pipeline. The other end of the exhaust pipe is connected to the second reversing valve.

[0007] Preferably, it also includes a sliding unit, which includes a slide rail and a base. The slide rail is mounted on a partition, and the base is slidably mounted on the slide rail. The base has a square ring structure with a square hole in the center. The weighing unit is mounted on the base and has a clearance hole corresponding to the square hole, which surrounds the square hole.

[0008] Preferably, a first sealing ring is installed around the square hole at the bottom of the base, and the width of the first sealing ring is equal to the distance between the bottom of the base and the partition.

[0009] Preferably, positioning posts are installed at the bottom corners of the box, and positioning rings corresponding to the positioning posts are installed on the weighing unit.

[0010] Preferably, a second sealing ring is installed at the bottom of the housing, which surrounds the square hole.

[0011] Preferably, it also includes an anti-clogging unit, which is installed at the bottom inside the housing and connected to the exhaust port. The anti-clogging unit includes a second air guide pipe, a support frame, and a sleeve. One end of the second air guide pipe is connected to the exhaust port. The support frame is vertically installed at the other end of the second air guide pipe. The sleeve is installed on the support frame and surrounds the second air guide pipe. The opening of the sleeve faces downward. The outer diameter of the second air guide pipe is smaller than the inner diameter of the sleeve.

[0012] Preferably, the corners at both ends of the sleeve are rounded.

[0013] Compared with existing technologies, this utility model has the following beneficial effects:

[0014] 1. This utility model features an exhaust vent at the bottom of the container and an exhaust channel on the partition. The exhaust pipe is connected to an extraction device via a suction pipe, allowing fresh air to enter from the top and exit from the bottom. This prevents the small amount of gas generated during the pickling process from accumulating at the bottom of the container, ensuring proper pickling of the salted duck eggs. Simultaneously, the first and second sealing rings create a relatively sealed environment between the extraction channel and the exhaust vent, enhancing the extraction effect of the extraction device.

[0015] 2. This invention monitors the dryness of the soil on the surface of the salted duck eggs by real-time weighing of the chamber. When the soil on the surface of the salted duck eggs dries too quickly, the air supplied by the air compressor is passed through a water tank to increase the water vapor in the air. When the water vapor encounters the dry soil, it is absorbed by the soil, thus moisturizing or retaining moisture and ensuring the pickling effect of the salted duck eggs. Furthermore, compared to using an atomizer to fill the gas with small water droplets, this invention avoids the formation of water droplets on the surface of the salted duck eggs, which reduces the permeability of the eggshell, increases the risk of anaerobic bacteria growth, and causes the salted duck eggs to spoil and smell bad. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is the front view of this utility model.

[0019] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle.

[0020] Figure 4 yes Figure 2 Enlarged view of section B in the middle.

[0021] Figure 5 This is a schematic diagram of the box structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the other side of the box body of this utility model.

[0023] Explanation of key figure labels:

[0024] 1. Cabinet body; 2. Cabinet door; 3. Temperature and humidity control panel; 4. Shelf; 41. Exhaust channel; 5. Box body; 51. Exhaust vent; 6. Weighing unit; 7. Gas supply pipe; 8. Exhaust pipe; 9. Exhaust equipment; 10. Slide rail; 11. Base; 12. First sealing ring; 13. Second sealing ring; 14. Positioning post; 15. Positioning ring; 16. Second air guide pipe; 17. Support frame; 18. Sleeve. Detailed Implementation

[0025] 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.

[0026] Next, the working principle of this embodiment will be described in detail so that those skilled in the art can better understand this utility model:

[0027] A temperature and humidity control device for storing salted duck eggs, reference Figures 1 to 6 .

[0028] Cabinet 1 is an insulated cabinet with an opening on its side wall. Cabinet door 2 is hinged and mounted on the edge of the opening. An array of partitions 4 is installed inside cabinet 1, each with a sealing strip. The partitions 4, in conjunction with cabinet door 2, divide the interior of cabinet 1 into multiple chambers. Each chamber contains a separate box 5, preventing mutual interference in humidity control between boxes 5 and avoiding simultaneous humidification of salted duck eggs that do not require humidification. A temperature and humidity control unit 3 is installed on top of cabinet 1 to generate cool air at a specified temperature. Air supply pipes 7 connect to the temperature and humidity control unit 3 and the chambers respectively. Each chamber is supplied with cool air via an independent air supply pipe 7, preventing mutual interference when adjusting the humidity of the salted duck eggs in different boxes 5. A weighing unit 6 is installed on the partitions 4, and the boxes 5 are placed on it. The weighing unit 6 monitors the boxes 5 using pressure sensors and transmits the weight information data to the controller for operator monitoring. The weight inside the chamber 5 is monitored by the weighing unit 6. As the soil on the outer wall of the salted duck eggs gradually dries, the mass of the chamber 5 gradually decreases, thus determining the soil drying rate. If the drying rate is too fast or too slow, it is adjusted by the temperature and humidity control unit 3. The correlation curve between weight and soil moisture can be obtained by recording weight changes and detecting the degree of drying, thus obtaining a rough relationship. Since the requirements for environmental parameters in the pickling of salted duck eggs are generally within a range, overly precise values ​​are not required. An exhaust vent 51 is provided at the bottom of the chamber 5 to expel air from inside the chamber 5 and even within the chamber itself. An air extraction channel 41 is provided inside the partition 4. One end of the air extraction channel 41 is connected to the chamber. An air extraction device 9 is installed on the outer wall of the cabinet 1. One end of the air extraction pipe 8 is connected to the air extraction device 9, and the other end is connected to the other end of the air extraction channel 41, thus forming an air extraction system for each chamber, facilitating smooth gas flow. The air extraction device 9 can be a low-negative-pressure device such as an exhaust fan.

[0029] The temperature and humidity control unit consists of a protective casing, an air compressor, a first reversing valve, a second reversing valve, an exhaust pipe, a water tank, and a first air guide pipe. The protective casing is bolted to the top of cabinet 1. The air compressor and water tank are both bolted inside the protective casing. The water tank contains multiple water troughs, each connected at the bottom via a connecting hole. The air compressor is connected to one end of the air supply pipe 7. The first reversing valve is installed on the air supply pipe 7. One end of the first air guide pipe is connected to the first reversing valve, and the other end of the first air guide pipe passes through the water tank and is located near the bottom. One end of the exhaust pipe is connected to the top of the water tank. The second reversing valve is installed on the air supply pipe 7, and the other end of the exhaust pipe is connected to the second reversing valve. Both the first and second reversing valves are electrically connected to the controller and can be controlled by the controller. The water tank's water level is monitored by a water level sensor, allowing for easy replenishment. A temperature sensor is installed inside the chamber to monitor the internal temperature, facilitating operator temperature adjustment of the air compressor.

[0030] When the operator notices that the soil on the surface of the salted duck eggs in a certain chamber 5 is drying too quickly, resulting in insufficient soil moisture, the first and second reversing valves can be activated via the controller. This allows gas from the gas supply pipe 7 to pass through the first reversing valve into the first air guide pipe, then through the first air guide pipe into the water tank and exit below the water surface. The exiting gas forms bubbles that come into contact with the water, thereby increasing the air humidity. The end of the first air guide pipe below the water surface is higher than the connecting hole to prevent bubbles from passing through the connecting hole into other water tanks. The bubbles eventually burst at the water surface, and the humidified air then enters the exhaust pipe and finally re-enters the gas supply pipe 7 through the second reversing valve. After entering the chamber, the humidified air enters the top of chamber 5. Because the air humidity is greater than the soil humidity, it can be absorbed by the soil, increasing the soil moisture and achieving the pickling parameters. As the soil moisture increases, the weight of chamber 5 will gradually increase. When the operator finds that the weight of chamber 5 has reached the set value, the first and second reversing valves can be closed via the controller. Since air enters from the top of chamber 5 and exits from the bottom, it can pass through all the salted duck eggs inside chamber 5, ensuring that each salted duck egg achieves a humidity-controlled effect. Furthermore, the bottom exhaust of chamber 5 allows harmful gases generated during the pickling process to be quickly expelled, preventing any negative impact on the pickling process.

[0031] In another embodiment, a filter screen can be installed at the exhaust end of the first air duct to break the air bubbles into multiple smaller bubbles, thereby increasing the contact area between air and water and thus increasing the humidity in the air.

[0032] The sliding unit includes a slide rail 10 and a base 11. The slide rail 10 is bolted to the partition 4, and the base 11 is slidably mounted on the slide rail 10. The cooperation between the slide rail 10 and the base 11 facilitates the operator's loading and unloading of the housing 5, improving work efficiency. The base 11 has a square ring structure with a square hole in the center to avoid obstructing the exhaust channel. A weighing unit 6 is mounted on the base 11, and the weighing unit 6 has a clearance hole corresponding to the square hole, which surrounds the square hole. A first sealing ring 12 is installed around the square hole at the bottom of the base 11. The shape and width of the first sealing ring 12 are equal to the distance between the bottom of the base 11 and the partition 4. A second sealing ring 13 is installed at the bottom of the housing 5, surrounding the square hole. The first sealing ring 12 and the second sealing ring 13 create a relatively sealed environment between the exhaust channel 41 and the exhaust port 51, enhancing the suction of the housing 5 by the suction device 9.

[0033] Positioning posts 14 are installed at the bottom corners of the box 5, and positioning rings 15 corresponding to the positioning posts 14 are installed on the weighing unit 6. The precise placement of the box 5 can be achieved by the cooperation of the positioning posts 14 and the positioning rings 15, so as to avoid errors in the weighing unit 6.

[0034] The anti-clogging unit includes a second air guide pipe 16, a support frame 17, and a sleeve 18. One end of the second air guide pipe 16 is connected to the exhaust port 51, and the axis of the second air guide pipe 16 is perpendicular to the inner bottom wall of the housing 5. The support frame 17 is vertically installed at the other end of the second air guide pipe 16, and the sleeve 18 is installed on the support frame 17, surrounding the second air guide pipe 16. The opening of the sleeve 18 faces downward, and the opening of the sleeve 18 is lower than the top of the second air guide pipe 16 to prevent the yellow mud from the salted duck eggs from entering the second air guide pipe 16 and causing blockage. The outer diameter of the second air guide pipe 16 is smaller than the inner diameter of the sleeve 18. Gas enters the second air guide pipe 16 from the gap between the sleeve 18 and the second air guide pipe 16, passes through the second air guide pipe 16, and is discharged through the exhaust channel. The corners at both ends of the sleeve 18 are rounded to avoid damaging the salted duck eggs.

[0035] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A temperature and humidity control device for storing salted duck eggs, characterized in that, The system includes a cabinet (1), a cabinet door (2), a temperature and humidity control unit (3), partitions (4), a box (5), a weighing unit (6), an air supply pipe (7), an air extraction pipe (8), and an air extraction device (9). The cabinet (1) has an opening on its side wall, and the cabinet door (2) is rotatably mounted on the edge of the opening. The partitions (4) are arrayed inside the cabinet (1), dividing the cabinet (1) into multiple chambers. The temperature and humidity control unit (3) is mounted on the top of the cabinet (1). The two ends of the air supply pipe (7) are respectively connected to the temperature and humidity control unit. The humidity control unit (3) is connected to the chamber. The weighing unit (6) is installed on the partition (4). The box (5) is placed on the weighing unit (6). The bottom of the box (5) is provided with an exhaust hole (51). The partition (4) is provided with an air extraction channel (41). One end of the air extraction channel (41) is connected to the chamber. The air extraction device (9) is installed on the outer wall of the cabinet (1). One end of the air extraction pipe (8) is connected to the air extraction device (9), and the other end is connected to the other end of the air extraction channel (41).

2. The salted duck egg storage temperature and humidity control device according to claim 1, characterized in that, The temperature and humidity control unit (3) includes a protective shell, an air compressor, a first reversing valve, a second reversing valve, an exhaust pipe, a water tank, and a first air guide pipe. The protective shell is installed on the top of the cabinet (1). The air compressor and the water tank are both installed inside the protective shell. The air compressor is connected to one end of the air supply pipe (7). The first reversing valve is installed on the air supply pipe (7). One end of the first air guide pipe is connected to the first reversing valve. The other end of the first air guide pipe passes through the water tank and is located inside the water tank near the bottom of the water tank. One end of the exhaust pipe is connected to the top of the water tank. The second reversing valve is installed on the air supply pipe (7). The other end of the exhaust pipe is connected to the second reversing valve.

3. The salted duck egg storage temperature and humidity control device according to claim 2, characterized in that, It also includes a sliding unit, which includes a slide rail (10) and a base (11). The slide rail (10) is mounted on the partition (4), and the base (11) is slidably mounted on the slide rail (10). The base (11) has a square ring structure with a square hole in the middle. The weighing unit (6) is mounted on the base (11), and the weighing unit (6) has a clearance hole corresponding to the square hole, which surrounds the square hole.

4. The salted duck egg storage temperature and humidity control device according to claim 3, characterized in that, The base (11) has a first sealing ring (12) installed around the square hole at the bottom. The shape and width of the first sealing ring (12) are equal to the distance between the bottom of the base (11) and the partition (4).

5. The salted duck egg storage temperature and humidity control device according to claim 3, characterized in that, Positioning posts (14) are installed at the bottom corners of the box (5), and positioning rings (15) corresponding to the positioning posts (14) are installed on the weighing unit (6).

6. The salted duck egg storage temperature and humidity control device according to claim 5, characterized in that, The bottom of the box (5) is equipped with a second sealing ring (13), which surrounds the square hole.

7. The salted duck egg storage temperature and humidity control device according to claim 1, characterized in that, It also includes an anti-blocking unit, which is installed on the bottom of the inner side of the housing (5) and connected to the exhaust port (51). The anti-blocking unit includes a second air guide pipe (16), a support frame (17) and a sleeve (18). One end of the second air guide pipe (16) is connected to the exhaust port (51). The support frame (17) is vertically installed on the other end of the second air guide pipe (16). The sleeve (18) is installed on the support frame (17) and surrounds the second air guide pipe (16). The opening of the sleeve (18) faces downward. The outer diameter of the second air guide pipe (16) is smaller than the inner diameter of the sleeve (18).

8. The salted duck egg storage temperature and humidity control device according to claim 7, characterized in that, The corners at both ends of the sleeve (18) are rounded.