A sealing device

Abstract

The utility model relates to the field of salty duck egg pickling, and specifically discloses a sealing device, which comprises a pickling jar body, the upper end of the pickling jar body is provided with an extension jar mouth, the upper portion of the extension jar mouth is provided with a conical cover body, the upper surface of the conical cover body is provided with an inflation mechanism, the inflation mechanism comprises: a piston pipe, a piston rod, the inner side of the conical cover body below a threaded connection pipe is provided with a sealed air cushion, the outer side of the threaded connection pipe at the upper end of the sealed air cushion is provided with a joint sleeve, the inside of the inflation mechanism is provided with a sealing mechanism, and the sealing mechanism comprises: a valve core, a spring and an annular base. The inflation mechanism is arranged to inflate the inside of the sealed air cushion multiple times, the outer side wall of the sealed air cushion is in contact with the inner protrusion of the inner side wall of the extension jar mouth, and extrusion occurs, the passage of the extension jar mouth can be sealed, the pickling jar body can be well sealed, and the salty duck eggs in the pickling jar body can be prevented from being in contact with external air moisture and deteriorating.

Description

Technical Field

[0001] This utility model relates to the field of salted duck egg pickling, specifically a sealing device. Background Technology

[0002] Salted duck eggs, also known as green-skinned duck eggs, salted duck eggs, or pickled duck eggs, and historically called "xianyuanzi," are a traditional Chinese dish. Salted duck eggs have a long history in China and are beloved by the people, enjoying great popularity in the market. The pickling process requires a sealing device, the placement of which directly determines the yield, flavor, safety, and shelf life. Sealing isolates oxygen and moisture, inhibiting aerobic spoilage bacteria. Once sealed, oxygen is quickly depleted, preventing the reproduction of aerobic bacteria and significantly reducing the probability of blackened or rotten eggs. Furthermore, sealing retains moisture, maintaining an osmotic pressure gradient. If left open, moisture continues to evaporate, increasing the brine concentration and resulting in an overly salty surface and a bland interior.

[0003] However, in the usual process of pickling and sealing salted duck eggs, water is usually poured into the rim of the jar for sealing. In hot and dry weather, the water may evaporate and water may be forgotten, thus affecting the sealing effect. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a sealing device that solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a sealing device, including a pickling jar body, an extended jar mouth at the upper end of the pickling jar body, a conical cover above the extended jar mouth, an inflation mechanism on the upper surface of the conical cover, the inflation mechanism including a piston tube and a piston rod, a threaded connecting pipe through the lower end of the piston tube penetrating the conical cover, a sealing gasket below the threaded connecting pipe located inside the conical cover, a connector sleeve installed at the upper end of the sealing gasket located outside the threaded connecting pipe, and a sealing mechanism inside the inflation mechanism, the sealing mechanism including a valve core, a spring, and an annular base.

[0006] As a further embodiment of this utility model: a water-filling rim is installed on the outer side of the extended jar mouth at the upper end of the pickling jar body, and an array of inner protrusions is installed on the inner sidewall of the extended jar mouth.

[0007] As a further embodiment of this utility model: the inner diameter of the conical lid is greater than the outer diameter of the extended mouth of the jar, and the sealing gasket is a flexible material component.

[0008] As a further embodiment of this utility model: the piston tube and the threaded connecting tube are connected in a continuous manner, and the sealing gasket is engaged and fixed with the threaded connecting tube through the joint sleeve.

[0009] As a further embodiment of this utility model: the spring is fixedly connected to the valve core and the annular base, and a sealing valve seat is installed above the valve core on the inner wall of the piston tube.

[0010] As a further embodiment of this utility model: the rim of the water-filling jar is integrally and fixedly connected to the pickling jar body, and the rim of the water-filling jar is an inverted conical structural component.

[0011] As a further embodiment of this invention: a piston pad is installed at the lower end of the piston rod inside the piston tube, and a one-way valve is installed inside the piston pad.

[0012] As a further improvement of this utility model, the inner protrusion is integrally and fixedly connected with the extended mouth of the jar.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By repeatedly inflating the sealing gasket through the inflation mechanism, the outer wall of the sealing gasket contacts the inner protrusion of the extended jar mouth and is squeezed, thus sealing the passage of the extended jar mouth. Then, by pouring a certain amount of water between the conical lid and the water-filling jar rim, the pickling jar can be well sealed, preventing the salted duck eggs inside the pickling jar from spoiling due to contact with external air and moisture.

[0015] 2. The sealing gasket can be installed and removed through the connector sleeve and threaded connection pipe. Therefore, if the sealing gasket is damaged, it can be replaced for continued use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a sealing device;

[0017] Figure 2 A schematic diagram of the structure of a conical cover in a sealing device;

[0018] Figure 3 This is a cross-sectional view of a conical cover in a sealing device;

[0019] Figure 4 A schematic diagram of the structure of a pickling jar in a sealing device;

[0020] Figure 5 This is a cross-sectional view of the entire device in a sealing apparatus.

[0021] In the diagram: 1. Pickling jar body; 2. Water-filling jar rim; 3. Conical lid; 4. Inflation mechanism; 5. Sealing air cushion; 6. Extended jar mouth; 401. Piston tube; 402. Piston rod; 403. Threaded connecting pipe; 404. Valve core; 405. Spring; 406. Annular base; 501. Connector sleeve; 601. Inner protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-5 As shown, this embodiment provides a sealing device, including a pickling jar body 1. An extended jar opening 6 is provided at the upper end of the pickling jar body 1. A conical lid 3 is provided above the extended jar opening 6. An inflation mechanism 4 is provided on the upper surface of the conical lid 3. The inflation mechanism 4 includes a piston tube 401 and a piston rod 402. A threaded connecting pipe 403 is provided through the lower end of the piston tube 401, penetrating the conical lid 3. The piston tube 401 and the threaded connecting pipe 403 are interconnected. A sealing gas cushion 5 is provided below the threaded connecting pipe 403, located inside the conical lid 3. The sealing gas cushion 5 is a flexible material component. A connector sleeve 501 is installed at the upper end of the sealing gas cushion 5, located outside the threaded connecting pipe 403. The sealing gas cushion 5 is connected to the threaded connecting pipe 403 through the connector sleeve 501. The connecting pipe 403 is engaged and fixed. The inflation mechanism 4 is equipped with a sealing mechanism, which includes a valve core 404, a spring 405, and an annular base 406. The spring 405 is fixedly connected to the valve core 404 and the annular base 406. A sealing valve seat is installed on the inner wall of the piston tube 401 above the valve core 404. A piston pad is installed inside the piston tube 401 at the lower end of the piston rod 402. A one-way valve is installed inside the piston pad. The opening direction of the one-way valve on the piston pad is different from the opening direction of the entire sealing mechanism. When the piston rod 402 is pressed into the sealing air pad 5 to inflate, the sealing mechanism will open. When the piston rod 402 is pulled upward, the one-way valve on the piston pad will open.

[0024] like Figure 2-3 As shown, in this embodiment, a water-filling rim 2 is installed on the outer side of the extended jar mouth 6 at the upper end of the pickling jar body 1. The water-filling rim 2 is integrally fixedly connected to the pickling jar body 1, and the water-filling rim 2 is an inverted conical structure component. The inner diameter of the conical cover 3 is greater than the outer diameter of the extended jar mouth 6. An array of inner protrusions 601 are installed on the inner sidewall of the extended jar mouth 6, and the inner protrusions 601 are integrally fixedly connected to the extended jar mouth 6.

[0025] The working principle of this utility model is as follows: After stacking the pickled duck eggs into the pickling jar 1, the sealing gasket 5 is first fixedly installed on the outside of the threaded connecting pipe 403 by engaging the connector sleeve 501. Then, the conical cover 3 is placed over the outside of the extended jar opening 6. By pressing the piston rod 402 above the piston tube 401 downwards, the air pressure pushes the valve core 404 downwards, causing the spring 405 to deform. The compressed air then fills the sealing gasket 5 through the annular base 406. When the piston rod 402 is pulled upwards, the valve core is depressed by the reset action of the spring 405. When 404 is positioned upwards and locked in the valve seat, it seals the passage between the threaded connecting pipe 403 and the piston pipe 401. The one-way valve on the piston at the lower end of the piston rod 402 is opened, thus allowing for multiple inflations into the sealing gas cushion 5. As the overall volume of the sealing gas cushion 5 increases, the outer wall of the sealing gas cushion 5 contacts the inner protrusion 601 on the inner wall of the extended jar mouth 6 and is squeezed, thereby sealing the passage of the extended jar mouth 6. By pouring a certain amount of water between the conical lid 3 and the water-filling jar rim 2, the pickling jar 1 can be effectively sealed, preventing the salted duck eggs inside the pickling jar 1 from spoiling due to contact with external air and moisture.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing device, comprising a pickling jar (1), characterized in that, The upper end of the pickling jar (1) is provided with an extended jar mouth (6), and a conical cover (3) is provided above the extended jar mouth (6). An inflation mechanism (4) is provided on the upper surface of the conical cover (3). The inflation mechanism (4) includes: a piston tube (401) and a piston rod (402). The lower end of the piston tube (401) passes through the conical cover (3) and is provided with a threaded connecting pipe (403). A sealing gas pad (5) is provided below the threaded connecting pipe (403) on the inner side of the conical cover (3). A connector sleeve (501) is installed on the upper end of the sealing gas pad (5) on the outer side of the threaded connecting pipe (403). A sealing mechanism is provided inside the inflation mechanism (4). The sealing mechanism includes: a valve core (404), a spring (405), and an annular base (406).

2. The sealing device according to claim 1, characterized in that, The outer side of the extended jar mouth (6) is equipped with a water-filling rim (2) at the upper end of the pickling jar body (1), and the inner sidewall of the extended jar mouth (6) is equipped with an array of inner protrusions (601).

3. A sealing device according to claim 1, characterized in that, The inner diameter of the conical cap (3) is greater than the outer diameter of the extended mouth (6), and the sealing gasket (5) is a flexible material component.

4. A sealing device according to claim 1, characterized in that, The piston tube (401) is connected to the threaded connecting tube (403), and the sealing gasket (5) is engaged and fixed with the threaded connecting tube (403) through the joint sleeve (501).

5. A sealing device according to claim 1, characterized in that, The spring (405) is fixedly connected to the valve core (404) and the annular base (406), and a sealing valve seat is installed above the valve core (404) on the inner wall of the piston tube (401).

6. A sealing device according to claim 2, characterized in that, The water-filling rim (2) is integrally and fixedly connected to the pickling jar body (1), and the water-filling rim (2) is an inverted conical structural component.

7. A sealing device according to claim 1, characterized in that, The lower end of the piston rod (402) is located inside the piston tube (401) and a piston pad is installed thereon, and a one-way valve is installed inside the piston pad.

8. A sealing device according to claim 2, characterized in that, The inner protrusion (601) is integrally and fixedly connected to the extended mouth of the jar (6).

Images