An external mechanism of a sealing machine

Abstract

The utility model relates to the technical field of vacuumizing packaging bag, propose a kind of external mechanism of sealing machine, including connecting piece and plug assembly, connecting piece is set on the body with air pump, plug assembly first end is used to connect with the vacuumizing bag body to be connected, plug assembly second end and connecting piece detachable cooperation;Connecting piece is equipped with the cooperation end being communicated with air pump, valve body is equipped in connecting piece, when plug assembly and connecting piece butt joint, plug assembly promotes valve body and moves towards the opening cooperation end direction, make plug assembly and cooperation end intercommunication;Plug assembly and connecting piece are separated, valve body resets and closes cooperation end. Utilize the original air pump in sealing machine, can carry out vacuumizing processing to the packaging bag with valve body and self-sealing strip.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum sealing of packaging bags, specifically to an external mechanism for a sealing machine. Background Technology

[0002] Some existing packaging bags feature self-sealing strips or zippers. Self-sealing strips are a common packaging design, primarily used to seal packaging bags and prevent contents from getting damp or contaminated. Self-sealing strips are typically made of plastic, offer repeated sealing, are easy to use, and effectively extend the shelf life of the packaged contents. Self-sealing strips are made from various materials, including PP, PE, and PVC.

[0003] However, these packaging bags are generally equipped with a connecting valve. Before the packaging bag can be self-sealed, the gas inside needs to be extracted. This connecting valve is used to connect an air pump to extract the gas from the packaging bag. Therefore, the applicant has added a vacuum connection mechanism to the sealing machine that can work with the packaging bag to extract the gas from it. Utility Model Content

[0004] This invention proposes an external mechanism for a sealing machine. A fixed base for connecting the first end of an air pump is installed on the machine body. The fixed base has a connector for connecting a plug assembly to a bag to be vacuumed, forming a complete vacuum extraction connection system. This allows for vacuuming of packaging bags with valves and self-sealing strips using the existing air pump within the sealing machine, eliminating the need for an additional vacuum extraction mechanism.

[0005] An external mechanism for a sealing machine designed for this purpose includes a connector and a plug assembly. The connector is mounted on a machine body with an air pump. The first end of the plug assembly is used to connect to the bag to be vacuumed, and the second end of the plug assembly is detachably engaged with the connector.

[0006] The connector has a mating end that communicates with the air pump. The connector contains a valve body. When the plug assembly is connected to the connector, the plug assembly pushes the valve body to move toward the opening mating end, so that the plug assembly communicates with the mating end. When the plug assembly is disengaged from the connector, the valve body resets and closes the mating end.

[0007] The valve body is elastically and movable within the connector, and the valve body elastically resets and engages with the connector when the plug assembly is disengaged from the connector.

[0008] One end of the connector is provided with a fixing seat for connecting to the air pump;

[0009] The mating end of the connector is connected to the fixing base;

[0010] When the plug assembly and connector are mated, the valve body opens and the mating end opens, the air pump runs and creates negative pressure inside the fixed seat, and the air in the bag is drawn into the fixed seat through the plug assembly and the mating end.

[0011] The fixed base is equipped with a liquid level detection device for triggering the air pump to stop running, so that the air pump stops running when the liquid sucked into the fixed base reaches a preset height;

[0012] Alternatively, the mounting base is provided with a mounting box, which can be pulled into or out of the mounting base. The mounting box has a cavity for communicating with the mating end of the connector, and a sealing ring for abutting against the inner wall of the mounting base.

[0013] The mounting box is equipped with a liquid level detection element. One end of the liquid level detection element extends out of the lower part of the mounting box. The fixing base is provided with a conductive connection end corresponding to the liquid level detection element. The mounting box is installed in the fixing base, and one end of the liquid level detection element is in conductive contact with the conductive connection end.

[0014] The mounting box contains a first cavity and a second cavity, with a partition between the first cavity and the second cavity. The volume of the second cavity is smaller than that of the first cavity, and the liquid level detection element is located on the second cavity.

[0015] The connector and the fixed base are integrally formed, or the connector is detachably installed on the fixed base.

[0016] The fixed base is provided with a first connecting end, which is connected to the mating end of the connector.

[0017] The fixed base is also provided with a connection end group, which includes a number of spaced second connection ends. Each second connection end is used to connect to an air pump, a pressure sensor or a solenoid valve.

[0018] The first connecting end and each of the second connecting ends are arranged side by side at intervals on the top of the fixed base.

[0019] The connector has an assembly cavity for installing the valve body, and the mating end is located on the outside of the connector and communicates with the assembly cavity.

[0020] The assembly cavity is provided with a connecting post that is inserted into the valve body. The connecting post is provided with an elastic element. One end of the elastic element abuts against the assembly cavity, and the other end of the elastic element abuts against the valve body, so that the valve body can move elastically within the assembly cavity of the connecting post. The elastic element is a spring.

[0021] The plug assembly includes a first plug that is axially inserted into the connector, the first plug having a sealing element that abuts against the inner wall of the connector, and the first plug having a groove for communicating with the mating end of the connector.

[0022] The plug assembly includes a second plug that connects to the vacuum bag body, and a connecting tube is provided between the second plug and the first plug. The second plug, the connecting tube, the first plug and the groove are connected in sequence.

[0023] The beneficial technical effects of this utility model are as follows:

[0024] By installing a mounting base on the sealing machine body for connecting the first end of the air pump, and a connector on the mounting base having a plug assembly for connecting the bag to be vacuumed, a complete vacuum extraction connection system is formed. In this way, the packaging bags described in the background art can be vacuumed using the existing air pump within the sealing machine, eliminating the need for an additional vacuum extraction mechanism. Attached Figure Description

[0025] Figure 1 This is a three-dimensional cross-sectional structural diagram of a sealing machine according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram showing the assembly and disassembly of the mounting box and sealing machine according to an embodiment of the present invention.

[0027] Figure 3 This is an exploded view of the connector assembly of the plug assembly and the fixing base according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic cross-sectional view of the connector between the plug assembly and the fixing base according to an embodiment of the present invention.

[0029] Figure 5 for Figure 3 Enlarged view of point A in the middle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] See Figures 1-5 An external mechanism for a sealing machine includes a fixed base 2 for connecting to the first end of an air pump, a connector 3 disposed on the fixed base 2, and a plug assembly 4 for connecting to a vacuum bag body.

[0032] The connector 3 is provided with a mating end 5 for communicating with the fixed base 2, and a valve body 6 for opening and closing the mating end 5 is provided inside the connector 3. The valve body 6 is elastically and movably disposed inside the connector 3.

[0033] The plug assembly 4 and the connector 3 are detachably connected. When the plug assembly 4 and the connector 3 are connected, the plug assembly 4 pushes the valve body 6 to open the mating end 5, so that the plug assembly 4 and the mating end 5 are connected. The air pump runs and creates a negative pressure inside the fixed seat 2. The air in the bag is drawn into the fixed seat 2 through the plug assembly 4 and the mating end 5.

[0034] The plug assembly 4 disengages from the connector 3, and the valve body 6 elastically resets and closes the mating end 5.

[0035] By installing a fixed base 2 on the body 1 of the sealing machine for connecting the first end of the air pump, and a connector 3 on the fixed base 2 for connecting the plug assembly 4 for connecting the bag to be vacuumed, a complete vacuum extraction connection system is formed. In this way, the original air pump in the sealing machine can be used to vacuum packaging bags with valve bodies and self-sealing strips without the need for an additional vacuum extraction mechanism.

[0036] The fixed base 2 is equipped with a liquid level detection element 7 for triggering the air pump to stop running, so that the air pump stops running when the liquid sucked into the fixed base 2 reaches a preset height.

[0037] A liquid level detection element 7 is installed inside the mounting base 2 to trigger the air pump to stop operating. In actual use, liquid may be present inside the packaging bag. When a vacuum is applied, the liquid may be drawn into the mounting base 2. The liquid level detection element 7 can monitor the liquid level inside the mounting base 2 in real time. When the drawn-in liquid reaches a preset height, the liquid level detection element 7 will trigger the air pump to stop operating. This design effectively prevents the air pump from continuing to operate when there is too much liquid, preventing liquid from overflowing from the mounting base 2 and thus preventing damage to the internal electrical components of the machine body 1.

[0038] The mounting base 2 is provided with a mounting box 8. The mounting box 8 can be pulled into or out of the mounting base 2. The mounting box 8 is provided with a cavity 9 for connecting the mating end 5 of the connector 3. The mounting box 8 is provided with a sealing ring 21 for abutting against the inner wall of the mounting base 2.

[0039] A pull-out mounting box 8 is installed inside the fixed base 2. The mounting box 8 has a cavity 9 that connects to the mating end 5 of the connecting piece 3, and a sealing ring 21. The pull-out structure of the mounting box 8 facilitates installation and disassembly. After installation, when the packaging bag needs to be vacuumed, the mounting box 8 forms a negative pressure cavity inside the fixed base 2. When cleaning or maintenance is required, the mounting box 8 can be easily pulled out of the fixed base 2 for convenient and quick cleaning of the internal components. The cavity 9 of the mounting box 8 connects to the mating end 5 of the connecting piece 3, ensuring smooth gas flow inside the fixed base 2 and ensuring that the vacuum extraction process is not affected. The sealing ring 21 abuts against the inner wall of the fixed base 2, effectively preventing gas leakage from the connection between the mounting box 8 and the fixed base 2, ensuring the sealing of the fixed base 2, and improving the efficiency and effect of vacuum extraction.

[0040] The mounting box 8 is provided with a liquid level detection element 7. One end of the liquid level detection element 7 extends out of the lower part of the mounting box 8. The fixing seat 2 is provided with a conductive connection end 17 corresponding to the liquid level detection element 7. The mounting box 8 is installed in the fixing seat 2, and one end of the liquid level detection element 7 is in conductive contact with the conductive connection end 17.

[0041] The mounting box 8 is provided with a first cavity 22 and a second cavity 23. A partition 24 is provided between the first cavity 22 and the second cavity 23. The volume of the second cavity 23 is smaller than that of the first cavity 22, and the liquid level detection element 7 is set on the second cavity 23.

[0042] Since the fixed base 2 adopts a pull-out mounting box 8, it is considered that the liquid level detection element 7 can be disassembled outside the fixed base 2 along with the mounting box 8. A conductive connection end 17 is provided between the liquid level detection element 7 and the fixed base 2. If the fixed base 2 does not need to be equipped with the mounting box 8, the liquid level detection element 7 is fixed inside the fixed base 2. One end of the fixed base 2 can be equipped with a drain pipe for draining liquid, and a switch valve (solenoid valve or manual switch valve) is provided on the drain pipe.

[0043] The connector 3 is integrally formed with the fixed base 2, or the connector 3 is detachably installed on the fixed base 2.

[0044] The integral molding of connector 3 and fixed base 2 ensures the connection strength and sealing between them, preventing gas leakage caused by gaps during assembly. This improves the overall performance and reliability of the vacuum connection mechanism, simplifies the manufacturing process, reduces assembly steps, lowers production costs, and increases production efficiency. The detachable installation method greatly facilitates equipment maintenance and cleaning. During long-term use, impurities or residual liquid may accumulate inside connector 3. The detachable installation allows connector 3 to be easily removed from fixed base 2 for cleaning and maintenance, effectively keeping the inside of connector 3 clean and ensuring unobstructed gas passages.

[0045] The fixed base 2 is provided with a first connecting end 10, which is connected to the mating end 5 of the connector 3.

[0046] The fixed base 2 is also provided with a connection end group 11, which includes a number of spaced second connection ends. Each second connection end is used to connect an air pump, a pressure sensor or a solenoid valve.

[0047] The first connecting end 10 and each of the second connecting ends are arranged side by side at intervals on the top of the fixed base 2.

[0048] The first connecting end 10 on the fixed base 2 connects to the mating end 5 of the connector 3. This structural design optimizes the gas path connection method. The first connecting end 10 provides a clear and stable interface for the gas path connection between the connector 3 and the fixed base 2, allowing gas to smoothly enter the interior of the fixed base 2 from the mating end 5 of the connector 3, ensuring the stability and reliability of gas transmission.

[0049] The connector 3 has an assembly cavity 12 for installing the valve body 6, and the mating end 5 is located outside the connector 3 and communicates with the assembly cavity 12.

[0050] The assembly cavity 12 is provided with a connecting post 13 that is inserted into the valve body 6. The connecting post 13 is provided with an elastic element 14. One end of the elastic element 14 abuts against the assembly cavity 12, and the other end of the elastic element 14 abuts against the valve body 6, so that the valve body 6 can move elastically within the assembly cavity 12 of the connecting member 3.

[0051] The elastic element 14 is a spring.

[0052] A limiting plate is provided on the outside of the connecting column 13. The limiting plate is fixed to the connecting column 13 by screws. The limiting plate is located on the outside of the valve body 6. The outer diameter of the limiting plate is larger than the inner diameter of the shaft hole of the valve body 6 to prevent the valve body 6 from elastically detaching from the connecting column 13.

[0053] The plug assembly 4 includes a first plug 15 that is axially inserted into the connector 3. The first plug 15 is provided with a sealing element 16 that abuts against the inner wall of the connector 3. The first plug 15 is provided with a groove 20 for communicating with the mating end 5 of the connector 3.

[0054] The plug assembly 4 includes a second plug 18 connected to the vacuum bag body, and a connecting tube 19 is provided between the second plug 18 and the first plug 15. The second plug 18, the connecting tube 19, the first plug 15 and the groove 20 are connected in sequence.

[0055] Both the first plug 15 and the second plug 18 are provided with channels for the flow of gas and liquid.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An external mechanism for a sealing machine, characterized in that: Includes connector (3) and plug assembly (4). Connector (3) is mounted on body (1) with air pump. The first end of plug assembly (4) is used to connect to the bag to be vacuumed. The second end of plug assembly (4) is detachably connected to connector (3). The connector (3) is provided with a mating end (5) that communicates with the air pump. The connector (3) is provided with a valve body (6). When the plug assembly (4) is connected to the connector (3), the plug assembly (4) pushes the valve body (6) to move toward the opening mating end (5) so that the plug assembly (4) communicates with the mating end (5). The plug assembly (4) is disengaged from the connector (3), and the valve body (6) is reset and the mating end (5) is closed.

2. The external mechanism of the sealing machine according to claim 1, characterized in that: The valve body (6) is elastically and movably disposed within the connector (3). When the plug assembly (4) is disengaged from the connector (3), the valve body (6) elastically resets and engages with the end (5).

3. The external mechanism of the sealing machine according to claim 1, characterized in that: One end of the connector (3) is provided with a fixing seat (2) for connecting to the air pump; The mating end (5) of the connector (3) is connected to the fixing seat (2); When the plug assembly (4) and connector (3) are docked, the valve body (6) is pushed to open and the mating end (5) is opened. The air pump runs and creates a negative pressure inside the fixed seat (2). The air in the bag is drawn into the fixed seat (2) through the plug assembly (4) and mating end (5).

4. The external mechanism of the sealing machine according to claim 3, characterized in that: The fixed base (2) is provided with a liquid level detection device (7) for triggering the air pump to stop running, so that the air pump stops running when the liquid sucked into the fixed base (2) reaches a preset height; Alternatively, the fixed base (2) is provided with an installation box (8), which can be pulled into or out of the fixed base (2). The installation box (8) is provided with a cavity (9) for connecting the mating end (5) of the connector (3), and the installation box (8) is provided with a sealing ring (21) for abutting against the inner wall of the fixed base (2). The mounting box (8) is provided with a liquid level detection component (7). One end of the liquid level detection component (7) extends out of the lower part of the mounting box (8). The fixing seat (2) is provided with a conductive connection end (17) corresponding to the liquid level detection component (7). The mounting box (8) is installed in the fixing seat (2). One end of the liquid level detection component (7) is in conductive contact with the conductive connection end (17). The mounting box (8) is provided with a first cavity (22) and a second cavity (23). A partition (24) is provided between the first cavity (22) and the second cavity (23). The volume of the second cavity (23) is smaller than that of the first cavity (22), and the liquid level detection element (7) is set on the second cavity (23).

5. The external mechanism of the sealing machine according to claim 3, characterized in that: The connector (3) is integrally formed with the fixed base (2), or the connector (3) is detachably installed on the fixed base (2).

6. The external mechanism of the sealing machine according to claim 3, characterized in that: The fixed base (2) is provided with a first connecting end (10), which is connected to the mating end (5) of the connector (3).

7. The external mechanism of the sealing machine according to claim 6, characterized in that: The fixed base (2) is also provided with a connection end group (11), which includes a number of spaced second connection ends, each of which is used to connect an air pump, a pressure sensor or a solenoid valve. The first connecting end (10) and each of the second connecting ends are arranged side by side at intervals on the top of the fixed base (2).

8. The external mechanism of the sealing machine according to claim 1, characterized in that: The connector (3) has an assembly cavity (12) for installing the valve body (6), and the mating end (5) is located outside the connector (3) and communicates with the assembly cavity (12). The assembly cavity (12) is provided with a connecting post (13) that is inserted into the valve body (6). The connecting post (13) is provided with an elastic element (14). One end of the elastic element (14) abuts in the assembly cavity (12), and the other end of the elastic element (14) abuts on the valve body (6) so that the valve body (6) can move elastically in the assembly cavity (12) of the connecting member (3). The elastic element (14) is a spring.

9. The external mechanism of the sealing machine according to claim 1, characterized in that: The plug assembly (4) includes a first plug (15) that is axially inserted into the connector (3). The first plug (15) is provided with a seal (16) that abuts against the inner wall of the connector (3). The first plug (15) is provided with a groove (20) for communicating with the mating end (5) of the connector (3).

10. The external mechanism of the sealing machine according to claim 9, characterized in that: The plug assembly (4) includes a second plug (18) connected to the vacuum bag body, and a connecting tube (19) is provided between the second plug (18) and the first plug (15). The second plug (18), the connecting tube (19), the first plug (15) and the groove (20) are connected in sequence.

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