Double-pump multi-working-condition vacuum sealing machine

Abstract

The utility model discloses a double-pump multi-working-condition vacuum sealing machine, and relates to the technical field of vacuum sealing machines. A first vacuum pump and a second vacuum pump simultaneously vacuumize two sides in a vacuum chamber; the first vacuum pump is sequentially communicated with the external pumping connecting part and the vacuum chamber; and the reversing valve assembly is used for switching the second vacuum pump to exhaust or inflate the vacuum chamber. According to the double-pump multi-working-condition vacuum sealing machine, the first vacuum pump and the second vacuum pump can vacuumize the two sides of the vacuum chamber at the same time, and compared with a double-pump structure sharing a pipeline, the double-pump multi-working-condition vacuum sealing machine is higher in vacuumizing efficiency and higher in vacuumizing speed. The second vacuum pump is matched with the reversing valve assembly to achieve the vacuum chamber inflation function, and the first vacuum pump is matched with the external pumping connecting part to achieve external pipeline vacuumizing. Multiple purposes are achieved through double-pump multi-working-condition combination, and the application range of the vacuum sealer is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum sealing machines, in particular to a double-pump multi-working-mode vacuum sealing machine. Background Art

[0002] A vacuum sealer is a device that can extract the gas in a sealed bag through a vacuum device, and then seal the sealed bag to form a vacuum seal inside the sealed bag. The vacuum sealer can achieve external and internal vacuum functions through a vacuum pump to meet different vacuuming needs.

[0003] Chinese patent CN 202222295249.2 discloses a vacuum sealing machine, including an upper cover and a lower cover, the upper cover is rotatably connected to the lower cover, the top surface of the lower cover is provided with a heat sealing strip and a vacuum groove, and the upper cover can seal and cover the vacuum groove; a first vacuum pump, a second vacuum pump, a multi-way pipe fitting and a vacuum pressure switch are installed inside the lower cover, the first joint of the multi-way pipe fitting is communicated with the vacuum groove, the second joint thereof is communicated with the first vacuum pump, the third joint thereof is communicated with the second vacuum pump, and the fourth joint thereof is communicated with the vacuum pressure switch.

[0004] Existing vacuum sealers usually use dual pumps or high-power vacuum pumps to evacuate a single point in the vacuum chamber to increase the vacuum power, which limits the pipeline flow and does not significantly improve the vacuum efficiency. In addition, such high-power vacuum sealers have a single function. Utility Model Content

[0005] The utility model aims to at least solve the technical problem existing in the prior art that "double pumps or high-power vacuum pumps evacuate a single point of the vacuum chamber, which limits the pipeline flow rate and does not significantly improve the vacuuming efficiency. And such high-power vacuum sealers have a single function." To this end, the utility model proposes a double-pump multi-working condition vacuum sealer, in which the double pumps are connected to different positions of the sealing chamber, effectively increasing the air extraction flow rate and significantly improving the vacuuming efficiency. The vacuum pump switches the working condition through a reversing valve to achieve the functions of external extraction and internal cavity blowing.

[0006] According to some embodiments of the present invention, a dual-pump multi-working-mode vacuum sealer comprises a housing, a vacuum chamber disposed in the housing, and a working pump assembly communicating with the vacuum chamber; the working pump assembly comprises:

[0007] A first vacuum pump is disposed in the housing, and the first vacuum pump is connected to one end of the vacuum chamber;

[0008] A second vacuum pump is disposed in the housing, the second vacuum pump is connected to the other end of the vacuum chamber, and the first vacuum pump and the second vacuum pump simultaneously perform vacuum processing on both sides of the vacuum chamber;

[0009] The first vacuum pump is connected to the external pumping connection part and the vacuum chamber in sequence. When the external pumping connection part is plugged into the external pumping component, the first vacuum pump is connected to the external pumping component; when the external pumping connection part is separated from the external pumping component, the first vacuum pump is connected to the vacuum chamber; and

[0010] The reversing valve assembly, the second vacuum pump is connected to the vacuum chamber through the reversing valve assembly, and the reversing valve assembly is used to switch the second vacuum pump to evacuate or inflate the vacuum chamber.

[0011] According to some embodiments of the utility model, a control component is included, which is electrically connected to the first vacuum pump, the second vacuum pump and the reversing valve component respectively, and the control component is used to control the working state of the working pump component.

[0012] According to some embodiments of the utility model, the reversing valve assembly includes an inflation three-way valve and an exhaust three-way valve, the exhaust three-way valve is connected to the exhaust port of the second vacuum pump, and the inflation three-way valve is connected to the exhaust port of the second vacuum pump; the inflation three-way valve, the exhaust three-way valve and the vacuum chamber are connected by a three-way pipe.

[0013] According to some embodiments of the present utility model, the three-way inflation valve and the three-way exhaust valve are fixedly disposed in the shell through a connecting cover plate.

[0014] According to some embodiments of the utility model, during the process of pumping, the three-way valve for charging is not energized and is in an initial state, the three-way valve for pumping is energized and is in an action state, the pumping port of the second vacuum pump is connected to the vacuum chamber through the three-way valve for pumping, and the exhaust port of the second vacuum pump is connected to the outside through the three-way valve for pumping;

[0015] The inflation three-way valve is energized and in an action state, the exhaust three-way valve is not energized and in an initial state, the exhaust port of the second vacuum pump is connected to the outside through the exhaust three-way valve for air intake, and the exhaust port of the second vacuum pump is connected to the vacuum chamber through the inflation three-way valve for inflation.

[0016] According to some embodiments of the utility model, the external pumping connection part is provided with an external pumping tube, an internal pumping tube and an exhaust pipe, the external pumping tube is connected to the external pumping component, the exhaust pipe is connected to the first vacuum pump, and the internal pumping tube is connected to the vacuum chamber.

[0017] According to some embodiments of the utility model, a one-way valve is arranged in the external pumping connection part. When the external pumping tube is plugged into the external pumping component, the one-way valve is closed, and the external pumping tube is connected with the air pumping tube; when the external pumping tube is separated from the external pumping component, the one-way valve is reset under the action of an internal spring, and the internal pumping tube is connected with the air pumping tube.

[0018] According to some embodiments of the present utility model, the control component is provided with an air pressure sensor, and the air pressure sensor, the first vacuum pump and the external pumping connection part are connected through a three-way pipe.

[0019] According to some embodiments of the present invention, the first vacuum pump and the second vacuum pump are respectively arranged on two sides of the vacuum chamber.

[0020] The dual-pump multi-working condition vacuum sealer according to some embodiments of the utility model has at least the following beneficial effects: the first vacuum pump and the second vacuum pump can simultaneously evacuate both sides of the vacuum chamber, which is more efficient and faster than the dual-pump structure with a shared pipeline. The second vacuum pump can realize the vacuum chamber inflation function in conjunction with the reversing valve assembly, and the first vacuum pump can realize the vacuuming of the external pipeline in conjunction with the external pumping connection. The dual-pump multi-working condition combination realizes multiple uses and expands the scope of application of the vacuum sealer.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a three-dimensional schematic diagram of a dual-pump multi-working-mode vacuum sealing machine according to an embodiment of the utility model;

[0024] Figure 2 It is a partial schematic diagram of a dual-pump multi-working-mode vacuum sealing machine according to an embodiment of the utility model;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of part A;

[0026] Figure 4 for Figure 2 An enlarged schematic diagram of part B;

[0027] Figure 5 This is a schematic diagram of the plug-in state of the external drawer connection portion of an embodiment of the utility model;

[0028] Figure 6It is a cross-sectional view of the external pumping connection part of the dual-pump multi-working mode vacuum sealing machine according to an embodiment of the utility model.

[0029] Reference numerals:

[0030] Shell 100, vacuum chamber 101, three-way pipe 110,

[0031] The first vacuum pump 210, the second vacuum pump 220,

[0032] External pumping connection part 230, external pumping pipe 231, internal pumping pipe 233, air pumping pipe 232, one-way valve 234,

[0033] The reversing valve assembly 240, the three-way valve for charging 241, the three-way valve for exhausting 242, the fixed cover plate 243,

[0034] External drawer 250,

[0035] Control component 300 , air pressure sensor 310 , control panel 320 . DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, top, bottom, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Reference below Figure 1-Figure 6 A dual-pump multi-working-mode vacuum sealing machine according to an embodiment of the utility model is described.

[0041] like Figure 1-Figure 6 As shown, the dual-pump multi-mode vacuum sealer includes a housing 100, a vacuum chamber 101 disposed in the housing 100, and a working pump assembly connected to the vacuum chamber 101. The working pump assembly, as the main improved structure of this embodiment, includes a first vacuum pump 210, a second vacuum pump 220, an external pumping connection portion 230, and a reversing valve assembly 240.

[0042] Specifically, the first vacuum pump 210 is disposed in the housing 100, and the first vacuum pump 210 is connected to one end of the vacuum chamber 101. The second vacuum pump 220 is disposed in the housing 100, and the second vacuum pump 220 is connected to the other end of the vacuum chamber 101. The first vacuum pump 210 and the second vacuum pump 220 simultaneously perform vacuum processing on both sides of the vacuum chamber 101.

[0043] Compared with the existing structure in which two vacuum pumps and the vacuum chamber 101 share a common exhaust channel, the first vacuum pump 210 and the second vacuum pump 220 of this embodiment are respectively connected to the vacuum chamber 101 through independent pipes, which increases the air flow rate of the double-pump vacuum operation of the vacuum chamber 101 and improves the exhaust efficiency. In addition, the two independent pipes are respectively arranged on both sides of the vacuum chamber 101, so that the air in the vacuum chamber 101 can be quickly discharged from both sides, and the vacuuming effect of the sealing bag is better.

[0044] The external pumping connection part 230 is arranged on the side wall of the housing 100, and the first vacuum pump 210 is connected with the external pumping connection part 230 and the vacuum chamber 101 in sequence. When the external pumping connection part 230 is plugged into the external pumping component 250, the first vacuum pump 210 is connected with the external pumping component 250. When the external pumping connection part 230 is separated from the external pumping component 250, the first vacuum pump 210 is connected with the vacuum chamber 101. The first vacuum pump 210 has two working conditions, the first one is the internal pumping working condition of evacuating the vacuum chamber 101, and the second one is the external pumping working condition of evacuating the external pumping component 250 through the external pumping connection part 230.

[0045] The reversing valve assembly 240 is disposed in the housing 100, and is located on one side of the second vacuum pump 220. The second vacuum pump 220 is connected to the vacuum chamber 101 through the reversing valve assembly 240, and the reversing valve assembly 240 is used to switch the second vacuum pump 220 to evacuate or inflate the vacuum chamber 101. The second vacuum pump 220 has two working conditions, the first is an internal evacuation condition for evacuating the vacuum chamber 101, and the second is an inflating condition for inflating the vacuum chamber 101.

[0046] When the first vacuum pump 210 and the second vacuum pump 220 both evacuate the vacuum chamber 101, the two pump bodies work synchronously. When any one of the pump bodies is in a non-inner evacuation state, the other pump body stops working.

[0047] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the first vacuum pump 210 and the second vacuum pump 220 are respectively arranged on both sides of the vacuum chamber 101. Specifically, the center of gravity and pipeline optimization are carried out in the position layout of the two vacuum pumps inside the shell 100. The two vacuum pumps are respectively arranged on one side of the corresponding pipeline of the vacuum chamber 101, which can shorten the pipeline length of the vacuum pump and the vacuum chamber 101 and improve the vacuuming efficiency. The two vacuum pumps are respectively arranged on both sides of the shell 100, which can balance the weight distribution of the dual-pump multi-working condition vacuum sealing machine, and avoid the resonance phenomenon caused by the simultaneous operation of the two vacuum pumps, so that the operation is more stable.

[0048] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, it includes a control component 300, which is electrically connected to the first vacuum pump 210, the second vacuum pump 220 and the reversing valve component 240 respectively, and the control component 300 is used to control the working state of the working pump component.

[0049] Specifically, the control component 300 is disposed in the housing 100, and the control panel 320 of the control component 300 is disposed on the surface of the housing 100. The user switches the working mode of the vacuum sealer through the control panel 320. The user can select three working modes: vacuuming the vacuum chamber 101, inflating the vacuum chamber 101, and externally exhausting. The working time of each working mode can be set separately or the working time can be automatically controlled according to the real-time air pressure.

[0050] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the reversing valve assembly 240 includes a three-way valve for charging 241 and a three-way valve for exhausting 242. The three-way valve for exhausting 242 is connected to the exhaust port of the second vacuum pump 220, and the three-way valve for charging 241 is connected to the exhaust port of the second vacuum pump 220. The three-way valve for charging 241, the three-way valve for exhausting 242 and the vacuum chamber 101 are connected via a three-way pipe 110.

[0051] Specifically, the structures of the three-way valve for charging 241 and the three-way valve for exhausting 242 are exactly the same. The three-way valve for charging 241 and the three-way valve for exhausting 242 are reference numerals in the drawings, and the interchange of the two numerals does not affect the working condition of the second vacuum pump 220. The structures of the two are exactly the same, but the functional definitions cannot be interchanged. Only the three-way valve for charging 241 can be connected to the exhaust port of the second vacuum pump 220, and only the three-way valve for exhausting 242 can be connected to the exhaust port of the second vacuum pump 220.

[0052] In a further embodiment, Figure 2 and Figure 3As shown, the three-way valve for charging 241 and the three-way valve for exhausting 242 are fixedly arranged in the housing 100 through a connecting cover plate. The connecting cover plate is used to fix the structural position of the two three-way valves, so that the connection between the second vacuum pump 220 and the three-way valve is more stable.

[0053] In a further embodiment, Figure 2 and Figure 3 As shown, during the process of exhausting, the three-way valve 241 for charging is not powered on and is in the initial state, the three-way valve 242 for exhausting is powered on and is in the action state, the exhaust port of the second vacuum pump 220 is connected to the vacuum chamber 101 through the three-way valve 242 for exhausting, and the exhaust port of the second vacuum pump 220 is connected to the outside through the three-way valve 241 for exhausting. The three-way valve 241 for charging is powered on and is in the action state, the three-way valve 242 for exhausting is not powered on and is in the initial state, the exhaust port of the second vacuum pump 220 is connected to the outside through the three-way valve 242 for exhausting, and the exhaust port of the second vacuum pump 220 is connected to the vacuum chamber 101 through the three-way valve 241 for charging.

[0054] Specifically, the default working condition of the dual-pump multi-working condition vacuum sealer is the internal pumping working condition of the vacuum chamber 101. Therefore, when the three-way valve 242 for exhaust is powered on, the exhaust port of the second vacuum pump 220 is connected to the vacuum chamber 101, and the three-way valve 241 for charging is in the initial state, and the exhaust port of the second vacuum pump 220 is connected to the outside, and the extracted air is discharged to the outside.

[0055] When switched to the inflation mode, the inflation three-way valve 241 is powered on and works, while the exhaust three-way valve 242 is in the initial state, the exhaust port of the second vacuum pump 220 is connected to the outside to introduce external air, and the exhaust port is connected to the vacuum chamber 101 to fill the outside air into the vacuum chamber 101. Regardless of the working state, only one of the exhaust three-way valve 242 and the inflation three-way valve 241 works, and the other valve does not work.

[0056] The three-way valve structure is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment.

[0057] In some embodiments of the present invention, Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the external pumping connection part 230 is provided with an external pumping pipe 231, an internal pumping pipe 233 and an air pumping pipe 232, the external pumping pipe 231 is connected to the external pumping component 250, the air pumping pipe 232 is connected to the first vacuum pump 210, and the internal pumping pipe 233 is connected to the vacuum chamber 101. Specifically, the external pumping connection part 230 is used as a component connecting the outside, the vacuum chamber 101 and the first vacuum pump 210.

[0058] In a further embodiment, Figure 2As shown, the control assembly 300 is provided with an air pressure sensor 310, and the air pressure sensor 310, the first vacuum pump 210 and the external pumping connection part 230 are connected through a three-way pipe 110. Specifically, the air pressure sensor 310 of the control assembly 300 is connected to the first vacuum pump 210 through the three-way pipe 110, and can detect the working air pressure under the internal pumping condition and the external pumping condition.

[0059] In a further embodiment, Figure 4-Figure 6 As shown, a one-way valve 234 is provided in the external pumping connection part 230. When the external pumping tube 231 is plugged into the external pumping component 250, the one-way valve 234 is closed, and the external pumping tube 231 is connected to the air pumping tube 232. When the external pumping tube 231 is separated from the external pumping component 250, the one-way valve 234 is reset under the action of the internal spring, and the internal pumping tube 233 is connected to the air pumping tube 232.

[0060] The structure of the one-way valve 234 is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dual-pump multi-working mode vacuum sealing machine, comprising a housing (100), a vacuum chamber (101) disposed in the housing (100), and a working pump assembly connected to the vacuum chamber (101); characterized in that: The working pump assembly comprises: A first vacuum pump (210) is disposed in the housing (100), and the first vacuum pump (210) is connected to one end of the vacuum chamber (101); a second vacuum pump (220) disposed in the housing (100), the second vacuum pump (220) being connected to the other end of the vacuum chamber (101), the first vacuum pump (210) and the second vacuum pump (220) simultaneously performing vacuum processing on both sides of the vacuum chamber (101); an external pumping connection part (230), the first vacuum pump (210) is connected to the external pumping connection part (230) and the vacuum chamber (101) in sequence; when the external pumping connection part (230) is plugged into the external pumping component (250), the first vacuum pump (210) is connected to the external pumping component (250); when the external pumping connection part (230) is separated from the external pumping component (250), the first vacuum pump (210) is connected to the vacuum chamber (101); and, A reversing valve assembly (240), wherein the second vacuum pump (220) is connected to the vacuum chamber (101) via the reversing valve assembly (240), and the reversing valve assembly (240) is used to switch the second vacuum pump (220) to evacuate or inflate the vacuum chamber (101).

2. The dual-pump multi-mode vacuum sealing machine according to claim 1, characterized in that: It comprises a control component (300), wherein the control component (300) is electrically connected to the first vacuum pump (210), the second vacuum pump (220) and the reversing valve component (240) respectively, and the control component (300) is used to control the working state of the working pump component.

3. The dual-pump multi-mode vacuum sealing machine according to claim 2, characterized in that: The reversing valve assembly (240) comprises a three-way air charging valve (241) and a three-way air exhaust valve (242), wherein the three-way air exhaust valve (242) is connected to the air exhaust port of the second vacuum pump (220), and the three-way air charging valve (241) is connected to the air exhaust port of the second vacuum pump (220); The three-way inflation valve (241), the three-way exhaust valve (242) and the vacuum chamber (101) are connected via a three-way pipe (110).

4. The dual-pump multi-mode vacuum sealing machine according to claim 3, characterized in that: The three-way inflation valve (241) and the three-way exhaust valve (242) are fixedly arranged in the housing (100) via a connecting cover plate.

5. The dual-pump multi-mode vacuum sealing machine according to claim 3, characterized in that: During the process of exhausting air, the three-way valve (241) for charging is not powered and is in an initial state, the three-way valve (242) for exhausting air is powered and is in an operating state, the exhaust port of the second vacuum pump (220) is connected to the vacuum chamber (101) through the three-way valve (242) for exhausting air, and the exhaust port of the second vacuum pump (220) is connected to the outside through the three-way valve (241) for exhausting air; The three-way inflation valve (241) is powered on and is in an operating state, the three-way exhaust valve (242) is not powered on and is in an initial state, the exhaust port of the second vacuum pump (220) is connected to the outside through the three-way exhaust valve (242) for air intake, and the exhaust port of the second vacuum pump (220) is connected to the vacuum chamber (101) through the three-way inflation valve (241) for inflation.

6. The dual-pump multi-mode vacuum sealing machine according to claim 2, characterized in that: The external pumping connection part (230) is provided with an external pumping tube (231), an internal pumping tube (233) and an exhaust tube (232); the external pumping tube (231) is connected to the external pumping component (250); the exhaust tube (232) is connected to the first vacuum pump (210); and the internal pumping tube (233) is connected to the vacuum chamber (101).

7. The dual-pump multi-mode vacuum sealer according to claim 6, characterized in that: A one-way valve (234) is provided in the external pumping connection portion (230); when the external pumping tube (231) is plugged into the external pumping component (250), the one-way valve (234) is closed, and the external pumping tube (231) is connected to the air pumping tube (232); when the external pumping tube (231) is separated from the external pumping component (250), the one-way valve (234) is reset under the action of an internal spring, and the internal pumping tube (233) is connected to the air pumping tube (232).

8. The dual-pump multi-mode vacuum sealing machine according to claim 6, characterized in that: The control component (300) is provided with an air pressure sensor (310), and the air pressure sensor (310), the first vacuum pump (210) and the external pumping connection part (230) are connected via a three-way pipe (110).

9. The dual-pump multi-mode vacuum sealing machine according to any one of claims 2 to 8, characterized in that: The first vacuum pump (210) and the second vacuum pump (220) are respectively arranged on two sides of the vacuum chamber (101).

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