Vacuumizing device and air exhaust connector

Abstract

The utility model belongs to the field of vacuumizing equipment, and relates to a vacuumizing device and an air exhaust connector, and the vacuumizing device comprises a host unit, a coupling sealing element and the air exhaust connector; the main machine unit comprises a vacuum assembly and a first coupling end, at least part of the first coupling end is defined by a first coupling part in an enclosing mode, and an air inlet channel communicated with the vacuum assembly and the inner side space of the first coupling peripheral wall is constructed; the coupling sealing piece comprises a first sealing part wrapping at least part of the end part of the first coupling part and a second sealing part wrapping at least part of the side part of the first coupling part; the air exhaust connector comprises a peripheral wall with a connecting port and a first air exhaust port formed in the end, away from the connecting port, of the peripheral wall, the peripheral wall is provided with a coupling step matched with the second sealing part, and at least part of the gas-liquid separation compartment is defined by the space between the peripheral wall and the first air exhaust port; the air exhaust connector is configured to be detachably assembled with the first coupling end, the coupling step is matched with the first sealing part, and at least part of the peripheral wall is matched with the second sealing part.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum equipment, specifically a portable vacuum device and vacuum connector for evacuating storage containers. Background Technology

[0002] This section provides background information relevant to this application and is not necessarily prior art.

[0003] The core structure of the vacuuming device involved in this application typically includes a main unit with a built-in vacuum pump assembly. The end of the device is equipped with one or more connectors to facilitate quick connection with various sealed containers (such as food preservation bags, storage tanks, etc.).

[0004] In practical applications, for objects that carry a lot of moisture or high humidity, liquid vapor will be drawn into the main unit during the pumping operation, resulting in reduced pumping efficiency. It may also cause chemical corrosion or physical blockage of the vacuum pump components, affecting the stable operation, service life and user experience of the equipment. Utility Model Content

[0005] The purpose of this invention is to overcome the problem that existing vacuum devices draw liquid vapor into the main unit during operation, resulting in reduced pumping efficiency, damage to vacuum pump components, and impact on user experience. This invention provides a vacuum device and pumping connector with a liquid vapor material isolation structure.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A vacuum pumping device includes: a main unit, a coupling seal, and a vacuum connector; the main unit includes a vacuum assembly and a first coupling end, the first coupling end being at least partially enclosed and defined by a first coupling portion, and an air inlet channel communicating with the vacuum assembly and the inner space of the first coupling peripheral wall; the coupling seal includes a first sealing portion surrounding at least a portion of an end of the first coupling portion and a second sealing portion surrounding at least a portion of a side portion of the first coupling portion; the vacuum connector includes a peripheral wall having a connection port and a first vacuum port configured at an end away from the connection port, the peripheral wall having a coupling step that mates with the second seal, and a gas-liquid separation compartment at least partially defined by the space between the peripheral wall and the first vacuum port; wherein the vacuum connector is configured to be detachably assembled with the first coupling end, and the coupling step mates with the first seal, and the peripheral wall at least partially mates with the second seal.

[0008] The solution provided in this application, through the dual sealing effect of the first and second sealing parts, ensures a tighter connection between the main unit and the vacuum connector under negative pressure, thereby improving vacuuming efficiency. The gas-liquid separation space within the vacuum connector effectively isolates and blocks liquid from entering the main unit, protecting the vacuum components from liquid corrosion or blockage and enhancing the user experience.

[0009] Furthermore, the peripheral wall is designed as a second coupling portion between the coupling step and the connection port, which mates with the second sealing portion. This structure further enhances the sealing performance of the device by mates with the second coupling portion, and also facilitates quick and easy assembly.

[0010] Furthermore, the second coupling part and the second sealing part are constructed with a taper for easy assembly. The taper design makes it easier to align the second coupling part and the second sealing part, reducing assembly errors and difficulties, and improving assembly efficiency. The taper design optimizes the contact surface shape of the two, allowing them to fit better, thereby forming a tighter sealing structure and improving extraction efficiency.

[0011] Furthermore, the second coupling portion and coupling step are constructed on the inner side of the peripheral wall. Constructing the second coupling portion and coupling step on the inner side of the peripheral wall ensures the sealing performance of the air extraction connector and the first coupling end, optimizes the installation structure of the coupling seal, and simplifies the assembly process.

[0012] Furthermore, the first and second sealing parts are integrated, and the coupling seal is fitted onto the first coupling end through the second sealing part. This integrated structure allows the coupling seal to seamlessly fit the outer surface of the first coupling end, maintaining high airtightness; the integrated structure also offers convenient, quick, and economical installation.

[0013] Furthermore, an assembly groove is constructed between the first coupling part and the main unit to accommodate the sealing element connection end of the second sealing part away from the first sealing part, and the sealing element connection end is installed in the assembly groove. By providing an assembly groove between the first coupling part and the main unit and assembling the sealing element connection end therein, it is possible to effectively prevent the coupling seal from shifting or falling off due to external forces during use, thereby ensuring stable and reliable sealing performance between the air extraction connector and the main unit.

[0014] Furthermore, the sealing connection end is constructed with an increased thickness assembly portion. The configuration of the assembly portion and the assembly groove ensures a secure fit with the assembly groove, preventing unstable dislodgement and making the assembly stable and reliable.

[0015] Furthermore, the lower end of the peripheral wall is connected to a bottom wall, and the first suction port is disposed on the lower side of the bottom wall. The bottom wall is constructed with a first suction channel connecting the gas-liquid separation compartment and the first suction port, and a liquid-blocking protrusion is constructed at the upper end of the first suction channel. With the above structure, a space for collecting liquid is formed between the liquid-blocking protrusion and the bottom wall, preventing liquid backflow during the suction process from causing blockage of the first suction channel, thereby ensuring that the first suction channel is always unobstructed.

[0016] Furthermore, an adsorption seal is fitted on the lower side of the bottom wall. The adsorption seal has an annular opening protruding from the lower end of the suction connector, and the adsorption seal defines at least a portion of the first suction port. By providing an adsorption seal on the lower side of the bottom wall, a higher level of sealing can be achieved at the annular opening of the suction connector, ensuring that the gas or liquid inside the container does not leak to the outside.

[0017] Furthermore, an upwardly extending assembly groove is provided on the lower side of the bottom wall, and the adsorption seal is hood-shaped and embedded in the assembly groove. The top wall of the adsorption seal has a through hole communicating with the first air extraction channel. By providing an assembly groove on the lower side of the bottom wall and embedding the hood-shaped adsorption seal, it is ensured that the adsorption seal can be installed firmly and reliably.

[0018] Furthermore, a top pin extending downwards is provided in the middle of the bottom wall. The top pin is used to trigger the opening of a vacuum component with a movable plug connected to the first vacuum port.

[0019] This utility model also provides a vacuum pumping device, including a main unit and a coupling seal. The main unit includes a vacuum component and a first coupling end. The first coupling end is at least partially enclosed and defined by a first coupling portion, and has an air intake channel communicating with the vacuum component and the inner space of the first coupling portion. The coupling seal includes a first sealing portion surrounding and covering at least a portion of the end of the first coupling portion. The first sealing portion is used to seal the connection to the vacuum pump connector. Under negative pressure, the first sealing portion can effectively ensure a tighter connection between the main unit and the vacuum pump connector, improving vacuum pumping efficiency.

[0020] Furthermore, it also includes a second sealing portion surrounding at least a portion of the side of the first coupling portion, the second sealing portion being used to seal the connection of the air extraction connector, the first sealing portion and the second sealing portion being integral, and the coupling seal being sleeved on the first coupling portion through the second sealing portion.

[0021] This utility model also provides a vacuum connector, including a peripheral wall and a first vacuum port. The peripheral wall has a connection port, and the first vacuum port is located at the end away from the connection port. A second coupling portion is provided on the peripheral wall between the coupling step and the connection port, and a gas-liquid separation compartment is defined at least partially by the space between the peripheral wall and the first vacuum port. The first vacuum port communicates with the gas-liquid separation compartment. The coupling step and the second coupling portion are used for a sealing engagement with a first coupling end coupling seal of the vacuum device. The sealing engagement between the coupling step and the first coupling end coupling seal effectively ensures a tighter connection between the main unit and the vacuum connector under negative pressure, improving vacuum efficiency. Attached Figure Description

[0022] Figure 1 A three-dimensional view of the vacuum pumping device;

[0023] Figure 2 and Figure 3 This is an exploded view of the vacuum pumping device;

[0024] Figure 4 An exploded view of the main unit, coupling seals, and air extraction connector;

[0025] Figure 5 A cross-sectional view of the main unit, coupling seals, and air extraction connector in mate;

[0026] Figure 6 This is a sectional view of the main unit and coupling seals after disassembly.

[0027] Figure 7 This is a cross-sectional view of the coupling seal and the air extraction connector when disassembled.

[0028] Figure 8 Three-dimensional for air extraction connector Figure 1 ;

[0029] Figure 9 This is a schematic diagram of the structure of the adsorption seal;

[0030] Figure 10 Three-dimensional for air extraction connector Figure 2 ;

[0031] Figure 11 and Figure 12 A schematic diagram showing that the first coupling part and the air extraction connector are designed as a square structure;

[0032] Figure 13 This is a structural diagram of the vacuum pumping device and its attachment components;

[0033] Figure 14 This is a sectional view of the attached component. Detailed Implementation

[0034] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0035] See Figures 1 to 4 This embodiment provides a vacuuming device, which includes a main unit 1, a coupling seal 6, and a vacuum connector 2. The main unit 1 includes a vacuum assembly 10' and a first coupling end 12. The first coupling end 12 is at least partially enclosed and defined by a first coupling portion 121. The main unit 1 is configured with an air inlet channel 13 that communicates with the vacuum assembly 10' and the inner space of the first coupling portion 121. The vacuum assembly 10' is equipped with a vacuum pump, and the air inlet of the vacuum pump is connected to the air inlet channel 13.

[0036] See Figures 5 to 7 , Figure 10 and Figure 12 The air extraction connector 2 includes a peripheral wall 21' having a connection port 20 and a first air extraction port 21 configured at the end away from the connection port 20. The peripheral wall 21' is configured with a coupling step 211', and a gas-liquid separation compartment 22 is defined between the peripheral wall 21' and the first air extraction port 21. The air extraction connector 2 is configured to be detachably assembled with the first coupling end 12 and sealed with the coupling seal 6.

[0037] See Figures 3 to 7 The coupling seal 6 includes at least a first sealing portion 61, which surrounds and covers at least a portion of the end of the first coupling portion 121. It is used to seal the connection of the vacuum connector 2. Specifically, the coupling step 211' cooperates with the first sealing portion 61. During vacuuming, the negative pressure generated by the vacuum assembly 10' pulls the vacuum connector 2 towards the main unit 1, causing the coupling step 211' to tightly abut against the first sealing portion 61, promoting a tight fit and thus improving the airtightness of the vacuuming in the axial direction. Here, "surrounding and covering" means that the first sealing portion 61 surrounds the end of the first coupling portion 121, so that the coupling step 211' and the end of the first coupling portion 121 can be sealed by the first sealing portion 61. "Surrounding and covering at least a portion of the end of the first coupling portion 121" means that the first sealing portion 61 may not cover the entire end of the first coupling portion 121 radially. Of course, the preferred embodiment covers the entire end of the first coupling portion 121, such as... Figures 3 to 7 The illustrated embodiment.

[0038] The coupling seal 6 further includes a second sealing portion 62, which surrounds and covers at least a portion of the side of the first coupling portion 121. At least a portion of the peripheral wall 21' mates with the second sealing portion 62. By providing the second sealing portion 62, a lateral sealing assembly is achieved between the vacuum connector 2 and the first coupling portion 121, thereby further improving airtightness. It also provides a double sealing effect in conjunction with the first sealing portion 61, improving vacuuming efficiency. Here, "surrounding and covering" means that the second sealing portion 62 surrounds the side of the first coupling portion 121, so that the peripheral wall 21' and the side of the first coupling portion 121 are sealed by the first sealing portion 62. "Surrounding and covering at least a portion of the side of the first coupling portion 121" means that the second sealing portion 62 may not cover the entire side of the first coupling portion 121 along the longitudinal axis of the vacuuming device. Of course, the preferred embodiment is the entire side of the first coupling portion 121, such as... Figures 3 to 7 The illustrated embodiment.

[0039] As an improved implementation, the perimeter wall 21' is made of a transparent material, which facilitates observation of the liquid status in the gas-liquid separation compartment 22, such as whether it is full, so that the user can handle the liquid in a timely manner.

[0040] See Figure 5 Since the first suction port 21 and the air inlet channel 13 are separated by the gas-liquid separation compartment 22, the liquid sucked in when the vacuum device is working cannot directly enter the air inlet channel 13, but is stored in the gas-liquid separation compartment 22. The gas-liquid separation compartment 22 buffers the liquid and achieves the separation effect of liquid and gas, preventing liquid from entering the vacuum component 10' and protecting the vacuum component 1 from liquid corrosion or blockage.

[0041] See Figure 5 and Figure 7 The peripheral wall 21' located between the coupling step 211' and the connection port 20 is designed as a second coupling part 212'. The second coupling part 212' mates with the second sealing part 62. With this structure, the mating of the second coupling part 212' and the second sealing part 62 further enhances the sealing performance of the device, and assembly is convenient and quick. As a specific mating method, the second coupling part 212' and the second sealing part 62 are constructed with a taper for easy assembly, such as... Figure 7 As shown, the second coupling portion 212' and the second sealing portion 62 are adapted to have a tapered shape that tapers from top to bottom and inward. This tapered design makes it easier to align the second coupling portion 212' and the second sealing portion 62, reducing assembly errors and difficulties and improving assembly efficiency. The tapered design optimizes the shape of the contact surfaces of both, allowing them to fit better and forming a tighter sealing structure, thus improving extraction efficiency.

[0042] See Figure 5 and Figure 7 The second coupling portion 212' and the coupling step 211' are constructed on the inner side of the peripheral wall 21'. Constructing the second coupling portion 212' and the coupling step 211' on the inner side of the peripheral wall 21' ensures the sealing performance of the air extraction connector 2 and the first coupling end 12, optimizes the installation structure of the coupling seal 6, and simplifies the assembly process.

[0043] See Figure 4 The first sealing part 61 and the second sealing part 62 are integral. The coupling seal 6 is sleeved on the first coupling part 121 through the second sealing part 62. The first sealing part 61 is configured as a ring-shaped structure that surrounds the bottom end of the second sealing part 62 and extends inward, so that when the second sealing part 62 is sleeved on the side of the first coupling part 121, the end of the first coupling part 121 contacts the upper end surface of the first sealing part 61. The coupling seal 6 is preferably made of an integral flexible material, such as rubber, silicone, or plastic, thereby improving the sealing performance. With an integral structure, the coupling seal 6 can integrally fit the outer surface of the first coupling end 12, maintaining efficient airtightness; the integral structure is convenient and quick to install, and economical.

[0044] See Figure 4 and Figure 5 An assembly groove 1210 is constructed between the first coupling part 121 and the main unit 1 to accommodate the sealing element connection end 621 of the second sealing part 62 away from the first sealing part 61. The sealing element connection end 621 is installed in the assembly groove 1210. By setting the assembly groove 1210 between the first coupling part 121 and the main unit 1 and assembling the sealing element connection end 621 therein, it is possible to effectively prevent the coupling sealing element 6 from being displaced or falling off due to external force during use, thereby ensuring that the sealing performance between the air extraction connector and the main unit 1 is stable and reliable.

[0045] See Figure 4 and Figure 5 To further improve the stability of the coupling seal 6, the connecting end 621 of the seal is constructed with an increased thickness assembly portion 6211, which is embedded in the assembly groove 1210 so that the coupling seal 6 is tightly inserted into the assembly groove 1210.

[0046] See Figure 5The lower end of the peripheral wall 21' is connected to a bottom wall 22'. The first suction port 21 is disposed on the lower side of the bottom wall 22'. The bottom wall 22' is constructed with a first suction channel 23 connecting the gas-liquid separation compartment 22 and the first suction port 21. The upper end of the first suction channel 23 is constructed with a liquid-blocking protrusion 231. The liquid-blocking protrusion 231 is constructed as a ring-shaped protrusion extending upward around the end of the first suction channel 23. The liquid-blocking protrusion 231 prevents the liquid sucked into the gas-liquid separation compartment 22 from flowing back into the first suction channel 23, thus avoiding the backflow of liquid from hindering the vacuuming operation and affecting the vacuuming effect.

[0047] Of course, besides the above-mentioned configuration, the lowest liquid level of the gas-liquid separation chamber 22 can also be set lower than the upper end of the first suction channel 23, so that the liquid entering the gas-liquid separation chamber 22 cannot directly flow back to the first suction channel 23. For example, Figure 5 As shown, the bottom of the gas-liquid separation compartment 22 extends upward relative to the periphery of the corresponding first suction channel 23 to form a raised portion 25. Since the first suction channel 23 is located on the raised portion 25, the upper end of the first suction channel 23 is higher than the lowest liquid level of the gas-liquid separation compartment 22, ensuring that the liquid does not flow directly from the first suction channel 23. In this configuration, the raised portion 25 is configured as an arc-shaped structure with a high center and a low periphery. In some specific embodiments, the first suction channel 23 is located in the middle of the raised portion 25.

[0048] See Figure 5 An adsorption seal 205 is fitted on the lower side of the bottom wall 22'. The adsorption seal 205 has an annular portion 206 protruding from the lower end of the suction connector 2, and the adsorption seal 205 defines at least a portion of the first suction port 21. By providing the adsorption seal 205 on the lower side of the bottom wall 22', a higher sealing performance can be formed at the annular portion 206 of the suction connector 2, ensuring that the gas or liquid inside the container will not leak to the outside.

[0049] See Figure 5 , Figure 8 and Figure 9 The bottom wall 22' has an upwardly extending mounting groove 204 on its lower side. The adsorption seal 205 is cover-shaped and embedded in the mounting groove 204. The top wall of the adsorption seal 205 can connect to the through hole 223' of the first air extraction channel 23. The above-mentioned arrangement of the adsorption seal 205 and the mounting groove 204 facilitates the positioning and installation of the adsorption seal 205. The two are installed compactly and stably, and this installation method can laterally position the adsorption seal 205, making it less prone to displacement.

[0050] See Figure 8 and Figure 9 , Figure 13 The bottom wall 22' has a top pin 221' extending downward at its middle portion. The top pin 221 is used to trigger the opening of the attachment member (4,5) with a movable plug a connected to the first vacuum port 21. Because existing vacuum containers have various connector specifications, other attachment members (4,5) may be required to adapt to the vacuum device during vacuuming, such as... Figure 13 As shown, in some specific embodiments, the attachment members (4,5) include two styles, 4 and 5, as shown in the figure. When the attachment members (4,5) are engaged with the first evacuation port 21, the top pin 221' triggers the movable plug a to move downward, thereby connecting the first evacuation port 21 and the evacuated container. When the attachment members (4,5) are separated from the first evacuation port 21, the movable plug a moves upward to reset, resealing the evacuated container. Therefore, the evacuation connector 2 of this patent is equipped with a top pin 221' for triggering the opening of the movable plug a of the aforementioned attachment members (4,5), thereby adapting to containers that require additional connection of attachment members (4,5) and improving versatility.

[0051] See Figure 13 and Figure 14 In one specific embodiment, the top of the attachment member 5 is provided with a connecting part 51 adapted to the first air extraction port 21, and the bottom of the attachment member 5 is provided with a sealing member 52. An airflow channel 54 is constructed within the sealing member 52, forming an air extraction hole 53 through its bottom. An air extraction port 55 communicating with the airflow channel 54 is constructed on the connecting part 51. A trigger member 56, movable vertically through the air extraction port 55, is disposed within the airflow channel 54. The trigger member 56 is constructed with a movable plug a located within the airflow channel 54. The bottom of the seal 52 is provided with a sealing member 59 that is fixedly connected to the trigger member 56. The airflow channel 54 is provided with an elastic element 58 that drives the trigger member 56 to move upward so that the movable plug a seals the air extraction port 55 and the sealing member 59 seals the air extraction hole 53. When the first air extraction port 21 is engaged with the connecting part 51 of the attachment member 5, the top pin 221' pushes the trigger member 56 downward, causing the movable plug a and the sealing member 59 to move downward, opening the air extraction port 55 and the air extraction hole 53, thereby connecting the evacuated container.

[0052] In a specific application scenario, the aforementioned attachment member 5 can be used to perform vacuuming operations on containers containing liquids, such as wine bottles and beverage bottles, to seal opened bottles. Specifically, the sealing member 52 is inserted into the bottle opening. When the connecting part 51 engages with the first suction port 21, the top pin 221' on the first suction port 21 pushes the trigger member 56 downward, causing the trigger member 56, along with the movable plug a and the sealing member 59, to move downward, thereby opening the suction port 55 and the suction hole 53, and connecting the air inlet and suction hole 53 of the vacuum assembly 10', so that the operator can vacuum the inner cavity of the bottle. Once the connecting part 51 is separated from the first suction port 21, under the elastic force of the elastic element 58, the trigger member 56 will move upward, causing the movable plug a and the sealing member 59 to seal the suction port 55 and the suction hole 53 again, thereby sealing the bottle and realizing vacuum storage of the liquid inside the bottle, which is very convenient.

[0053] The elastic element 58 is a spring sleeved on the outside of the trigger 56, with its two ends respectively abutting between the movable plug a and the bottom of the airflow channel 54; the sealing element 52 is configured as a tubular structure, with multiple longitudinally arranged annular sealing protrusions 521 on its periphery, thereby further improving the sealing effect.

[0054] See Figure 8 and Figure 9 The adsorption seal 205 is provided with a positioning hole 222' corresponding to the top pin 221'. The top pin 221' fits through the positioning hole 222' and extends to the first air extraction port 21. Through the positioning assembly of the top pin 221' and the positioning hole 222', the adsorption seal 205 and the air extraction connector 2 can be quickly aligned and assembled. Furthermore, the cooperation between the top pin 221' and the positioning hole 222' can prevent the adsorption seal 205 from shifting, ensuring that the adsorption seal 205 is installed firmly and reliably.

[0055] See Figure 11 and Figure 12 In some specific embodiments, the first coupling part 121 and the air extraction connector 2 are configured as square structures.

[0056] See Figure 2 and Figure 3 In some embodiments, the main unit 1 further includes a control module 71 and a battery 72. The control module 71 includes a control circuit 711. The vacuum assembly 10' is electrically connected to the control circuit 711 and the battery 72. The battery 72 provides electrical power, and the control circuit 711 controls the operating state of the vacuum assembly 10'. The control circuit 711 is equipped with a switch 712 that can be controlled from outside the main unit 1 to control the activation of the vacuum assembly 10'.

[0057] In one embodiment, the battery 72 is a rechargeable battery 72, and the control module 71 may also include a charging module and a charging interface 715.

[0058] See Figure 2 In some embodiments, the control module 71 further includes a pressure sensor 713 and a pressure relief valve 714. The pressure sensor 713 and pressure relief valve 714 are connected to the inner space of the first coupling portion 121, such as through a pipeline. The pressure sensor 713 and pressure relief valve 714 are electrically connected to the control circuit 711. During operation, the pressure sensor 713 detects the air pressure in the inner space of the first coupling portion 121. When the detected pressure reaches a set value, the control circuit 711 controls the pressure relief valve 714 to connect to external air, thus relieving pressure in the inner space of the first coupling portion 121. This allows the user to easily separate the device from the connected container when vacuuming is complete. The pressure sensor 713 and pressure relief valve 714 are existing devices; the pressure relief valve 714 can be a solenoid valve.

[0059] See Figure 2 In some embodiments, the host unit 1 further includes a bracket 14 and a housing 15. The control module 71 and the battery 72 are mounted on the bracket 14, and the housing 15 is mounted on the outside of the bracket 14 to cover the internal structure of the bracket 14. The first coupling end 121 is constructed at one end of the bracket 14 and can be integrally injection molded or separately injection molded and then assembled.

[0060] Compared with the prior art, the vacuuming device provided by this patent provides a double sealing effect by configuring a coupling seal 2 on the first coupling part 121, thereby forming a sealing structure that seals with the air extraction connector 2 at the end and side of the first coupling part 121, thus ensuring the airtightness of the vacuuming, improving the vacuuming efficiency and user experience.

[0061] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A vacuuming device, characterized in that The utility model relates to a kind of vacuum pumping system, comprising: Host unit (1), including vacuum assembly (10 ') and first coupling end (12), the first coupling end (12) is at least partially enclosed by first coupling portion (121) definition, and Gas inlet channel (13) is communicated with the inside space of the vacuum assembly (10 ') and the first coupling portion (121); Coupling seal (6), including the first sealing portion (61) that at least part of the end of the first coupling portion (121) is surrounded, and the second sealing portion (62) that at least part of the side of the first coupling portion (121) is surrounded; Extraction joint (2), including the peripheral wall (21 ') with connection port (20) and the first extraction port (21) configured at the end away from the connection port (20), the peripheral wall (21 ') is configured with coupling step (211 '), and Gas-liquid separation compartment (22) is at least partially defined by the space between the peripheral wall (21 ') and the first extraction port (21); Wherein, the extraction joint (2) is configured to be detachably assembled with the first coupling end (12), and The coupling step (211 ') cooperates with the first sealing portion (61), and the peripheral wall (21 ') at least partially cooperates with the second sealing portion (62).

2. The evacuation device of claim 1, wherein, The peripheral wall (21 ') is designed as the second coupling portion (212 ') between the coupling step (211 ') and the connection port (20), and the second coupling portion (212 ') cooperates with the second sealing portion (62).

3. The evacuation device of claim 2, wherein, The second coupling portion (212 ') and the second sealing portion (62) are configured with taper for facilitating assembly.

4. The evacuation device of claim 2, wherein, The second coupling portion (212 ') and the coupling step (211 ') are configured inside the peripheral wall (21 ').

5. The evacuation device of claim 1, wherein, The first sealing portion (61) and the second sealing portion (62) are integrated, and the coupling seal (6) is sleeved on the first coupling portion (121) through the second sealing portion (62).

6. The evacuation device of claim 5, wherein, The first coupling portion (121) and the host unit (1) are configured with an assembly groove (1210) receiving the seal connection end (621) of the second sealing portion (62) away from the first sealing portion (61), and the seal connection end (621) is installed in the assembly groove (1210).

7. The evacuation device of claim 6, wherein, The seal connection end (621) is configured with an assembly portion (6211) with increased thickness.

8. The evacuation device of claim 1, wherein, The lower end of the peripheral wall (21 ') is connected with a bottom wall (22 '), and the lower side of the bottom wall (22 ') is configured with the first extraction port (21), the bottom wall (22 ') is configured with the first extraction channel (23) communicating the gas-liquid separation compartment (22) and the first extraction port (21), and the upper end of the first extraction channel (23) is configured with a liquid separation protrusion (231).

9. The evacuation device of claim 8, wherein, The lower side of the bottom wall (22 ') is assembled with an adsorption seal (205), and the adsorption seal (205) is provided with a ring mouth portion (206) protruding from the lower end of the extraction joint (2), and the adsorption seal (205) limits at least part of the first extraction port (21).

10. The evacuation device of claim 9, wherein, The bottom wall (22') is provided with a mounting groove (204) extending upwardly, and the adsorbing sealing member (205) is in the form of a cover and is embedded in the mounting groove (204), and a top wall of the adsorbing sealing member (205) is provided with a through hole (223') communicating with the first air suction channel (23).

11. The evacuation device of claim 10, wherein, The bottom wall (22') is provided with a top pin (221') extending from a middle portion to a lower end portion, and the top pin (221') is used for triggering opening of a vacuumizing member (5) having a movable plug (a) connected to the first air suction port (21).

12. A vacuuming device characterized by The application comprises: a main unit (1) comprising a vacuum assembly (10') and a first coupling end (12), the first coupling end (12) being at least partially enclosed by a first coupling portion (121) and being provided with an air inlet channel (13) in communication with an inner space of the vacuum assembly (10') and the first coupling portion (121); a coupling sealing member (6) comprising a first sealing portion (61) surrounding and covering at least a part of an end portion of the first coupling portion (121); wherein the first sealing portion (61) is used for sealingly connecting an air suction connector (2).

13. The evacuation device of claim 12, wherein, The application further comprises a second sealing portion (62) surrounding and covering at least a part of a side portion of the first coupling portion (121), the second sealing portion (62) being used for sealingly connecting the air suction connector (2), the first sealing portion (61) and the second sealing portion (62) being integrated, and the coupling sealing member (6) being sleeved on the first coupling portion (121) through the second sealing portion (62).

14. A gas extraction fitting, characterised in that The application comprises: a peripheral wall (21') having a connection port (20) and a first air suction port (21) configured at an end away from the connection port (20), the peripheral wall (21') being provided with a coupling step (211'), the peripheral wall (21') being provided with a second coupling portion (212') between the coupling step (211') and the connection port (20), and a gas-liquid separation compartment (22) being at least partially defined by a space between the peripheral wall (21') and the first air suction port (21), and the first air suction port (21) being in communication with the gas-liquid separation compartment (22); wherein the coupling step (211') and the second coupling portion (212') are used for sealingly cooperating with a coupling sealing member (6) of a first coupling end (12) of a vacuumizing device.

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