Mobile vacuum unit with buffer tank

By introducing components such as buffer tanks and check valves into the vacuum device, the problem of the vacuum pump device being unable to provide stable negative pressure is solved, thus achieving safety and stability in the vacuum suction process and avoiding equipment damage caused by liquid backflow.

CN224432736UActive Publication Date: 2026-06-30SHANGHAI FOREST CABIN BIOLOGICAL-TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FOREST CABIN BIOLOGICAL-TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing vacuum pump devices cannot provide a stable and sustained negative vacuum pressure, and there is a risk that liquid raw materials may be drawn back into the vacuum pump, leading to equipment damage and safety hazards.

Method used

Design a mobile vacuum device with a buffer tank, including a vacuum buffer assembly, a vacuum assembly, and a control assembly. The vacuum buffer tank is connected to a sealed mixing tank to achieve the buffering and stability of vacuum negative pressure. A check valve is set to prevent liquid backflow. Automatic start and stop are achieved using a digital display vacuum pressure gauge and the control assembly.

Benefits of technology

It provides a continuous and stable vacuum negative pressure, preventing backflow of liquid raw materials, improving the safety and reliability of the equipment, and reducing the risk of equipment damage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224432736U_ABST
    Figure CN224432736U_ABST
Patent Text Reader

Abstract

This utility model provides a mobile vacuum device with a buffer tank, comprising: a mobile handcart, a vacuum buffer assembly, a vacuum assembly, and a control assembly; the vacuum buffer assembly, vacuum assembly, and control assembly are mounted on the mobile handcart; the vacuum buffer assembly is positioned between the vacuum assembly and a sealed mixing tank; wherein, the vacuum buffer assembly includes a vacuum buffer tank and a digital display vacuum pressure gauge, the digital display vacuum pressure gauge being mounted on the vacuum buffer tank; a first manual valve is installed on the first connecting pipeline between the vacuum buffer tank and the sealed mixing tank; and a check valve is installed on the second connecting pipeline between the vacuum buffer tank and the vacuum assembly. During the operation of the vacuum assembly, the vacuum negative pressure generated by the vacuum assembly passes through the vacuum buffer assembly sequentially through the sealed mixing tank and the liquid raw material tank. The vacuum buffer assembly temporarily stores a large amount of vacuum negative pressure, ensuring that the vacuum device provides a continuous and stable vacuum negative pressure to the outside.
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Description

Technical Field

[0001] This utility model belongs to the field of cosmetic emulsification production technology, specifically, it relates to a mobile vacuum device with a buffer tank. Background Technology

[0002] The equipment commonly used in cosmetic emulsification production includes vacuum homogenizing emulsifiers (referred to as emulsifiers), aqueous phase pots, and oil phase pots (referred to as sealed mixing tanks). Since the aqueous phase pots and oil phase pots are not designed with vacuum devices, it is difficult and time-consuming to add large containers of liquid raw materials into the pots.

[0003] Currently, there are two common methods for adding ingredients during the pre-dispersion stage of the water-oil pan in the cosmetics industry: the first method involves adding the liquid raw materials from a large container in multiple batches; the second method involves multiple people lifting the large container of liquid raw materials and slowly pouring it into the pan. However, given the wide variety of cosmetic products, both methods pose certain risks to operators: they are time-consuming and prone to microbial growth, and the increased manual labor can easily lead to safety accidents. Therefore, the process of adding the liquid raw materials from the large container is the most crucial step, and a key step in saving time and reducing safety risks.

[0004] Patent document CN107725317A discloses a novel portable vacuum pump, including a pump body, a guide pipe on the pump body, an intermediate wall next to the pump body, a coupling connected to the intermediate wall, a motor connected to the coupling, a base under the pump body and the motor, and wheels on the base.

[0005] Patent document CN107725314A discloses a novel silent portable vacuum pump, including a pump body, a guide pipe on the pump body, an intermediate wall next to the pump body, a coupling connected to the intermediate wall, a motor connected to the coupling, a base under the pump body and the motor, wheels on the base, and a silent V-belt on the wheels.

[0006] Patent document CN107725318A discloses a novel shock-absorbing portable vacuum pump, including a pump body, a guide pipe on the pump body, an intermediate wall next to the pump body, a coupling connected to the intermediate wall, a motor connected to the coupling, a base under the pump body and the motor, wheels on the base, and shock-absorbing holes on the wheels.

[0007] Patent document CN210343638U discloses a vacuum negative pressure system, comprising several vacuum negative pressure units spaced apart; the several vacuum negative pressure units are connected in parallel via water pipes and suction pipes. Each vacuum negative pressure unit includes: a vacuum pump mounted on the ground, a motor mechanically connected to the vacuum pump, and a pressure stabilizing tank connected to the vacuum pump inlet via a first branch pipe; the vacuum pump is connected to the water pipe via a second branch pipe; the water pipe is inclined to the ground, with an overflow vent valve at its highest point and a water inlet valve at its lowest point; an exhaust pipe is connected to the outlet of the vacuum pump; and the suction pipe is connected to the pressure stabilizing tank via a third branch pipe.

[0008] The vacuum pumps and vacuum negative pressure systems described above all have the following drawbacks when providing vacuum negative pressure: they cannot provide a stable and lasting vacuum negative pressure to the sealed mixing tank, and there is a risk that liquid raw materials may be drawn back into the vacuum pump when the vacuum pump stops unexpectedly. Utility Model Content

[0009] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a mobile vacuum device with a buffer tank.

[0010] A mobile vacuum device with a buffer tank provided by this utility model includes: a mobile handcart, a vacuum buffer assembly, a vacuum assembly, and a control assembly;

[0011] The vacuum buffer assembly, vacuum assembly, and control assembly are mounted on the mobile handcart.

[0012] The vacuum buffer assembly is disposed between the vacuum assembly and the sealed mixing tank;

[0013] The vacuum buffer assembly includes a vacuum buffer tank and a digital vacuum pressure gauge. The digital vacuum pressure gauge is installed on the vacuum buffer tank. A first manual valve is installed on the first connecting pipeline between the vacuum buffer tank and the sealed mixing tank. A check valve is installed on the second connecting pipeline between the vacuum buffer tank and the vacuum assembly.

[0014] Preferably, the vacuum assembly includes a vacuum pump body, a coupling, and a vacuum motor, wherein the vacuum pump body is connected to the vacuum motor via the coupling;

[0015] The coupling is installed on the output end of the vacuum motor, and the other end of the coupling is connected to the vacuum pump body.

[0016] Preferably, the coupling is detachably installed between the vacuum pump body and the vacuum motor.

[0017] Preferably, the first connecting pipe between the vacuum buffer tank and the sealed mixing tank is a sanitary hose.

[0018] Preferably, the second connecting pipe between the vacuum buffer tank and the vacuum assembly is a stainless steel pipe.

[0019] Preferably, the mobile handcart is equipped with a handle and the bottom of the mobile handcart is equipped with casters.

[0020] Preferably, a drain pipe is provided at the bottom of the vacuum buffer tank, and a second manual valve is provided on the drain pipe.

[0021] Compared with the prior art, this utility model has the following beneficial effects: A vacuum buffer assembly is placed between the vacuum assembly and the sealed mixing tank. The vacuum buffer assembly is connected to the sealed mixing tank via a first connecting pipe and to the vacuum assembly via a second connecting pipe. During the operation of the vacuum assembly, the vacuum negative pressure generated by the vacuum assembly passes through the vacuum buffer assembly sequentially through the sealed mixing tank and the liquid raw material tank. The vacuum buffer assembly temporarily stores a large amount of vacuum negative pressure, ensuring that the vacuum device provides a continuous and stable vacuum negative pressure. Furthermore, when the vacuum assembly unexpectedly stops, the raw material liquid backflows into the vacuum buffer assembly, preventing damage to the equipment. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 A schematic diagram of the overall structure of a mobile vacuum device with a buffer tank;

[0024] Figure 2 A schematic diagram of the overall structure connecting a mobile vacuum device with a buffer tank and a sealed mixing tank.

[0025] The diagram shows:

[0026] Mobile handcart 1 Control circuit 42

[0027] Vacuum buffer assembly 2; Liquid raw material tank 6

[0028] Vacuum component 3 Vacuum pump body 31

[0029] Control component 4 Coupling 32

[0030] Sealed mixing tank 5, vacuum motor 33

[0031] Vacuum buffer tank 21; Handle of mobile trolley 11

[0032] 22 digital vacuum pressure gauges and 12 casters

[0033] First connecting pipe 23, sewage pipe 25

[0034] First manual valve 231 Second manual valve 251

[0035] Second connecting pipe 24 Third connecting pipe 61

[0036] Check valve 241. Discharge pipe 51

[0037] Control Panel 41 Third Manual Valve 52 Detailed Implementation

[0038] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0039] like Figure 1 as well as Figure 2 As shown, this embodiment provides a mobile vacuum device with a buffer tank for providing a stable vacuum negative pressure to a sealed mixing tank 5 to perform vacuum suction operation when adding raw materials to the sealed mixing tank 5. It includes: a mobile handcart 1, a vacuum buffer assembly 2, a vacuum assembly 3, and a control assembly 4. The control assembly 4 is fixed to the mobile handcart 1 by welding, and the vacuum buffer assembly 2 and the vacuum assembly 3 are fixed to the mobile handcart 1 by fixing bolts.

[0040] Vacuum buffer assembly 2, vacuum assembly 3 and control assembly 4 are mounted on the mobile handcart 1.

[0041] The vacuum buffer assembly 2 is disposed between the vacuum assembly 3 and the sealed mixing tank 5; the vacuum buffer assembly 2 is used to buffer the vacuum negative pressure.

[0042] The vacuum buffer assembly 2 includes a vacuum buffer tank 21 and a digital vacuum pressure gauge 22. The digital vacuum pressure gauge 22 is installed on the vacuum buffer tank 21 and is used to detect the vacuum pressure value inside the vacuum buffer tank 21 and feed the vacuum pressure value back to the control assembly 4.

[0043] A first manual valve 231 is installed on the first connecting pipe 23 between the vacuum buffer tank 21 and the sealed mixing tank 5. This valve is used to manually control the opening and closing of the vacuum device.

[0044] A check valve 241 is installed on the second connecting pipe 24 between the vacuum buffer tank 21 and the vacuum assembly 3. The check valve 241 controls the unidirectional flow of vacuum negative pressure and blocks it in the reverse direction.

[0045] The vacuum negative pressure generated by the vacuum component passes through the vacuum buffer component 2 and then sequentially through the sealed mixing tank 5 and the liquid raw material tank 6, thereby drawing the liquid raw material from the liquid raw material tank 6 into the sealed mixing tank 5. The vacuum buffer component 2 ensures the persistence of the vacuum level.

[0046] The control component 4 can set the vacuum value and automatically start and stop the suction operation in real time according to the vacuum value in the vacuum buffer component 2 monitored by the digital display vacuum pressure gauge 22, which can effectively improve the stability of the vacuum.

[0047] The vacuum assembly 3 includes a vacuum pump body 31, a coupling 32, and a vacuum motor 33. The vacuum pump body 31 is connected to the vacuum motor 33 via the coupling 32. The vacuum pump body 31 and the vacuum motor 33 are connected to the mobile handcart 1 via fixing bolts.

[0048] The coupling 32 is installed on the output end of the vacuum motor 33, and the other end of the coupling 32 is connected to the vacuum pump body 31. The vacuum motor 33 rotates to drive the vacuum pump body 31 to generate a vacuum negative pressure. The vacuum motor 33 is used to rotate to drive the coupling 32 to run, the coupling 32 is used to drive the vacuum pump body 31 to run, and the vacuum pump body 31 is used to generate a vacuum negative pressure.

[0049] The coupling 32 is detachably installed between the vacuum pump body 31 and the vacuum motor 33.

[0050] The first connecting pipe 23 between the vacuum buffer tank 21 and the sealed mixing tank 5 is a sanitary hose. The sanitary hose is compatible with various interfaces, making the mobile vacuum device with the buffer tank applicable to a wide range of situations.

[0051] The second connecting pipe 24 between the vacuum buffer tank 21 and the vacuum component 3 is a stainless steel pipe, specifically a 304 stainless steel pipe.

[0052] The mobile handcart 1 is equipped with a mobile handcart handle 11, and the bottom of the mobile handcart 1 is equipped with mobile casters 12.

[0053] The handle 11 of the mobile handcart is installed on the mobile handcart 1 by welding. The mobile handcart can be moved quickly and conveniently by pulling the handle 11.

[0054] A drain pipe 25 is provided at the bottom of the vacuum buffer tank 21, and a second manual valve 251 is provided on the drain pipe 25.

[0055] The control component 4 includes a control panel 41 and a control line 42. The control panel 41 is connected to the vacuum motor 33 and the digital vacuum pressure gauge 22 via the control line 42.

[0056] The entire device is logically controlled by the control component 4. The vacuum pump body 31 is driven by the operation of the vacuum motor 33 to deliver the vacuum to the vacuum buffer tank 21. At the same time, the vacuum switch of the sealed mixing tank 5 is controlled by the first manual valve 231, which can realize the feeding operation of the liquid raw material in the liquid raw material tank 6 by vacuum suction of the sealed mixing tank 5.

[0057] The top of the sealed mixing tank 5 is equipped with a quick-connect chuck interface and is connected to the vacuum buffer tank 21 via a sanitary hose. A digital vacuum pressure gauge 22 is also installed on the top of the sealed mixing tank 5 to monitor the vacuum pressure of the tank. The sealed mixing tank 5 is connected to the liquid raw material tank 6 via a third connecting pipe 61, which is a sanitary hose, with its bottom extending into the bottom of the liquid raw material tank 6. A discharge pipe 51 is installed at the bottom of the sealed mixing tank 5, and a third manual valve 52 is installed on the discharge pipe 51 for discharging the material. The sealed mixing tank 5 is equipped with a dispersion motor and a dispersion disc for stirring, dispersing, and mixing the material.

[0058] This embodiment provides a mobile vacuum device with a buffer tank, applicable to tanks with sealing functions such as aqueous phase tanks and oil phase tanks. The device automatically generates a vacuum and performs vacuum suction of liquid raw materials using its control component 4. By pressing the start button on the control panel, the vacuum motor 33 starts and drives the vacuum pump 31 via the coupling 32. A stainless steel pipe connects to the vacuum buffer tank 21, generating a negative vacuum. A sanitary hose connects to the sealed mixing tank 5, creating a negative vacuum inside the tank and drawing liquid from the liquid raw material tank 6 into the sealed mixing tank 5 through the connected sanitary hose. This achieves the function of vacuum suction of liquid raw materials.

[0059] This mobile vacuum device with a buffer tank can set a vacuum value and monitor the vacuum value of the vacuum buffer tank 21 in real time and start and stop automatically. At the same time, the vacuum buffer tank 21 can achieve the persistence of the vacuum degree and effectively improve the stability of the vacuum.

[0060] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0061] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A mobile vacuum device with a buffer tank, characterized in that, include: Mobile handcart (1), vacuum buffer assembly (2), vacuum assembly (3) and control assembly (4); The vacuum buffer assembly (2), vacuum assembly (3) and control assembly (4) are mounted on the mobile handcart (1); The vacuum buffer assembly (2) is disposed between the vacuum assembly (3) and the sealed mixing tank (5); The vacuum buffer assembly (2) includes a vacuum buffer tank (21) and a digital vacuum pressure gauge (22). The digital vacuum pressure gauge (22) is installed on the vacuum buffer tank (21). A first manual valve (231) is installed on the first connecting pipeline (23) between the vacuum buffer tank (21) and the sealed mixing tank (5). A check valve (241) is installed on the second connecting pipeline (24) between the vacuum buffer tank (21) and the vacuum assembly (3).

2. The mobile vacuum device with a buffer tank according to claim 1, characterized in that, The vacuum assembly (3) includes a vacuum pump body (31), a coupling (32), and a vacuum motor (33), wherein the vacuum pump body (31) is connected to the vacuum motor (33) via the coupling (32); The coupling (32) is installed on the output end of the vacuum motor (33), and the other end of the coupling (32) is connected to the vacuum pump body (31).

3. The mobile vacuum device with a buffer tank according to claim 2, characterized in that, The coupling (32) is detachably installed between the vacuum pump body (31) and the vacuum motor (33).

4. The mobile vacuum device with a buffer tank according to claim 1, characterized in that, The first connecting pipe (23) between the vacuum buffer tank (21) and the sealed mixing tank (5) is a sanitary hose.

5. The mobile vacuum device with a buffer tank according to claim 1, characterized in that, The second connecting pipe (24) between the vacuum buffer tank (21) and the vacuum assembly (3) is a stainless steel pipe.

6. The mobile vacuum device with a buffer tank according to claim 1, characterized in that, The mobile handcart (1) is equipped with a mobile handcart handle (11), and the bottom of the mobile handcart (1) is equipped with mobile casters (12).

7. The mobile vacuum device with a buffer tank according to claim 1, characterized in that, The bottom of the vacuum buffer tank (21) is provided with a sewage pipe (25), and a second manual valve (251) is provided on the sewage pipe (25).