Vacuumizing system and vacuum machine

Abstract

The vacuumizing system comprises a plurality of first vacuum pumps which are arranged in parallel, the air inlet ends of the first vacuum pumps are respectively communicated with a vacuum cavity, the first vacuum pumps are further connected with a second vacuum pump in series, and the air outlet ends of the first vacuum pumps are respectively communicated with the air inlet end of the second vacuum pump. The air outlet end of the second vacuum pump is connected with a noise reduction assembly. According to the utility model, the plurality of first vacuum pumps are connected in parallel and then connected in series with the second vacuum pump, the plurality of first vacuum pumps connected in parallel increase the air exhaust flow, output air is collected to the second vacuum pump and sucked by the second vacuum pump, so that the negative pressure of air flow can be further improved; and meanwhile, fluctuating and loud-noise airflow blown out by the first vacuum pumps is absorbed through the second vacuum pump, noise can be greatly reduced, noise reduction is conducted again through the noise reduction assembly, and therefore the effects of large negative pressure, large flow and low noise of the vacuum pumping system are achieved, and meanwhile the cost can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum systems, in particular to a vacuum pumping system and a vacuum machine. Background Art

[0002] The vacuum machine is composed of vacuum pump, vacuum chamber, sealing strip, upper cover, air bag, solenoid valve and other parts. The main function of vacuum packaging is to remove oxygen and various gases in the air to prevent food from spoiling and oxidation. The main function of vacuum packaging is to remove the air in the packaging bag. In addition to the functions of deoxygenation and preservation, it also has the functions of pressure resistance, anti-breakage, and air barrier, which can more effectively keep the original color, aroma, taste, shape and nutritional value of food for a long time.

[0003] In the prior art, the vacuum pumps of household vacuum machines are all miniature vacuum pumps, mainly including piston vacuum pumps and diaphragm vacuum pumps. Among them, the negative pressure and flow of the piston vacuum pump are relatively large, but the noise and cost are also relatively large; while the noise and cost of the diaphragm vacuum pump are relatively low, but the negative pressure and flow are small. Therefore, the user experience of household vacuum machines is poor, it is difficult to meet the needs of vacuum machine development, and it cannot form competitiveness. Utility Model Content

[0004] The utility model aims to provide a vacuum pumping system and a vacuum machine which can improve negative pressure and flow rate and reduce noise and cost.

[0005] In order to solve the above technical problems, the present invention can be implemented by adopting the following technical solutions:

[0006] A vacuum pumping system comprises a plurality of first vacuum pumps arranged in parallel, wherein the air inlet ends of the plurality of first vacuum pumps are respectively connected to a vacuum chamber, and the plurality of first vacuum pumps are also connected in series with a second vacuum pump, wherein the air outlet ends of the plurality of first vacuum pumps are respectively connected to the air inlet ends of the second vacuum pumps, and a noise reduction component is connected to the air outlet end of the second vacuum pump.

[0007] In one embodiment, the noise reduction component includes sound-absorbing cotton and a sound-absorbing cover. The sound-absorbing cotton is arranged at the air outlet of the second vacuum pump. The sound-absorbing cover is connected to the air outlet of the second vacuum pump and covers the sound-absorbing cotton.

[0008] In one embodiment, at least two first vacuum pumps are provided.

[0009] In one embodiment, at least one second vacuum pump is provided.

[0010] In one embodiment, the sound-absorbing cotton is porous sound-absorbing foam.

[0011] In one embodiment, the first vacuum pump and the second vacuum pump are piston vacuum pumps or diaphragm vacuum pumps.

[0012] The utility model also provides a vacuum machine, which adopts any of the above vacuum pumping systems.

[0013] In one embodiment, the vacuum machine includes a bottom cover, a flip cover A and a flip cover B. The bottom cover is provided with a vacuum chamber. The flip cover A is connected to the flip cover B. The vacuum pumping system is arranged between the flip cover A and the flip cover B and is connected to the vacuum chamber. The flip cover B is covered on the bottom cover. Beneficial Effects

[0014] The utility model vacuum pumping system and vacuum machine connect multiple first vacuum pumps in parallel and then connect a second vacuum pump in series. The multiple first vacuum pumps in parallel increase the flow rate of air extraction and simultaneously output gas to be collected to the air inlet end of the second vacuum pump, which is then sucked by the second vacuum pump. This can further increase the negative pressure of the airflow. At the same time, the fluctuating and noisy airflows blown out by the multiple first vacuum pumps are absorbed by the second vacuum pump, which can greatly reduce the noise. The airflow blown out from the air outlet end of the second vacuum pump is further reduced in noise by the noise reduction component, so that the noisy airflow is further suppressed, thereby achieving high negative pressure, high flow rate and low noise of the vacuum pumping system, and the cost can also be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the vacuum pumping system of the utility model;

[0016] Figure 2 The noise reduction component structure of the vacuum system of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 3 The noise reduction component structure of the vacuum system of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 4 It is an exploded schematic diagram of the vacuum machine of the utility model.

[0019] As shown in the attached figure:

[0020] 100. A first vacuum pump; 200. A second vacuum pump; 300. A noise reduction component; 310. Sound-absorbing cotton; 320. A silencer cover; 400. A bottom cover; 500. A flip cover A; 600. A flip cover B. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only."

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figure 1 A vacuum pumping system includes a plurality of first vacuum pumps 100 arranged in parallel, wherein the air inlet ends of the plurality of first vacuum pumps 100 are respectively connected to the vacuum chamber, and the plurality of first vacuum pumps 100 are also connected in series with a second vacuum pump 200, wherein the air outlet ends of the plurality of first vacuum pumps 100 are respectively connected to the air inlet ends of the second vacuum pump 200, and a noise reduction component 300 is connected to the air outlet end of the second vacuum pump 200.

[0025] Specifically, in this embodiment, multiple first vacuum pumps 100 are connected in parallel, and the air inlet ends of the multiple parallel first vacuum pumps 100 are connected to the vacuum chamber of the vacuum machine. The multiple first vacuum pumps 100 simultaneously suction and evacuate the vacuum chamber, thereby increasing the air flow rate. At least two first vacuum pumps 100 are provided, and two or more first vacuum pumps 100 can be connected in parallel.

[0026] At the same time, a second vacuum pump 200 is connected in series behind the multiple parallel first vacuum pumps 100, wherein at least one second vacuum pump 200 is provided, and the air inlet end of the second vacuum pump 200 is connected to the air outlet end of the multiple parallel first vacuum pumps 100. The gases extracted by the multiple parallel first vacuum pumps 100 will be simultaneously collected at the air inlet end of the second vacuum pump 200, and then sucked by the second vacuum pump 200, so that the negative pressure of the airflow can be further increased, and the fluctuating and noisy airflow blown out by the multiple parallel first vacuum pumps 100 is absorbed by the second vacuum pump 200, which can greatly reduce the noise.

[0027] In addition, a noise reduction component 300 is connected to the air outlet of the second vacuum pump 200. The noise reduction component 300 can once again reduce the noise of the airflow discharged from the air outlet of the second vacuum pump 200, thereby further suppressing the noisy airflow, thereby achieving a high negative pressure, high flow, and low noise effect of the vacuum system. At the same time, the cost can also be greatly reduced.

[0028] By connecting multiple first vacuum pumps 100 in parallel and connecting the second vacuum pump 200 in series, the first vacuum pump 100 and the second vacuum pump 200 in this embodiment can adopt piston vacuum pumps or diaphragm vacuum pumps, thereby reducing costs and ensuring high negative pressure, high flow and low noise effects.

[0029] See also Figure 2 In order to achieve noise reduction, the noise reduction component 300 in this embodiment includes sound-absorbing cotton 310 and a sound-absorbing cover 320. The sound-absorbing cotton 310 is arranged at the air outlet of the second vacuum pump 200, and the sound-absorbing cover 320 is connected to the air outlet of the second vacuum pump 200 and covers the sound-absorbing cotton 310. The sound-absorbing cotton 310 is a porous sound-absorbing foam. The sound-absorbing cotton 310 is installed at the air outlet of the second vacuum pump 200, so that noise can be reduced through the sound-absorbing cotton 310. At the same time, the sound-absorbing cover 320 is connected to the second vacuum pump 200 and covers the sound-absorbing cotton 310, so as to fix the sound-absorbing cotton 310.

[0030] See also Figure 4 The utility model also provides a vacuum machine, which adopts any of the above-mentioned vacuum pumping systems, and the vacuum machine includes a bottom cover 400, a flip cover A500 and a flip cover B600, the bottom cover 400 is provided with a vacuum chamber, the flip cover A500 is connected to the flip cover B600, the vacuum pumping system is arranged between the flip cover A500 and the flip cover B600, and is connected to the vacuum chamber, and the flip cover B600 is covered on the bottom cover 400.

[0031] By connecting multiple first vacuum pumps 100 in parallel and then connecting the second vacuum pump 200 in series, the multiple first vacuum pumps 100 can increase the air flow and negative pressure of the vacuum chamber. At the same time, the second vacuum pump 200 and the noise reduction component 300 can further suppress the noisy airflow, thereby achieving the high negative pressure, high flow and low noise effects of the vacuum system, and the cost can also be greatly reduced.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Any technician in the industry can smoothly implement the utility model according to the drawings shown in the specification and the above description; however, any equivalent changes, modifications and evolutions made by any technician familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the scope of protection of the technical solution of the utility model.

Claims

1. A vacuum system, Features: It comprises a plurality of first vacuum pumps arranged in parallel, wherein the air inlet ends of the plurality of first vacuum pumps are respectively connected to the vacuum chamber, and the plurality of first vacuum pumps are also connected in series with a second vacuum pump, wherein the air outlet ends of the plurality of first vacuum pumps are respectively connected to the air inlet ends of the second vacuum pumps, and a noise reduction component is connected to the air outlet end of the second vacuum pump; The noise reduction component includes sound-absorbing cotton and a sound-absorbing cover. The sound-absorbing cotton is arranged at the air outlet end of the second vacuum pump. The sound-absorbing cover is connected to the air outlet end of the second vacuum pump and covers the sound-absorbing cotton.

2. The vacuum system according to claim 1, Features: At least two of the first vacuum pumps are provided.

3. The vacuum system according to claim 1, Features: At least one second vacuum pump is provided.

4. The vacuum system according to claim 1, Features: The sound-absorbing cotton is porous sound-absorbing foam.

5. The vacuum system according to claim 1, Features: The first vacuum pump and the second vacuum pump are piston vacuum pumps or diaphragm vacuum pumps.

6. A vacuum machine, Features: A vacuum system as claimed in any one of claims 1 to 5.

7. The vacuum machine according to claim 6, Features: It includes a bottom cover, a flip cover A and a flip cover B. The bottom cover is provided with a vacuum cavity. The flip cover A is connected to the flip cover B. A vacuum pumping system is arranged between the flip cover A and the flip cover B and is connected to the vacuum cavity. The flip cover B covers the bottom cover.

Images