A disposable vacuum filtration device

Abstract

The utility model relates to filtering devices and technical fields, and in particular to a disposable vacuum filtration device. Its technical solution includes a filtrate holding bottle, a filter, a negative pressure pump and a filtrate receiving bottle, an upper connecting ring is fixed at the upper opening of the filter, side grooves are provided at the lower ends of both sides of the filter, and a threaded cylinder is installed at the inner top of the side groove through a rotating shaft, a docking port is provided at the lower end of the filter, a docking pipe is installed through the inside of the negative pressure pump, batteries are embedded and installed on both sides of the negative pressure pump, a lower connecting ring is fixed at the lower opening of the negative pressure pump, connecting rods are fixed on both sides of the upper end of the negative pressure pump, the lower end of the filtrate holding bottle and the upper end of the filtrate receiving bottle are installed through the lower end of the filtrate receiving bottle, and the two docking pipes are respectively threaded in the upper connecting ring and the lower connecting ring. The utility model has the advantages of small size, light weight, convenient carrying and convenient disassembly and maintenance, and reduced operation difficulty.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a disposable vacuum filtering device. Background Art

[0002] As the main filtering and separation device, the suction filter device is mainly used for filtering and separation in the fields of sewage treatment, air treatment, food production, etc. In the field of sewage treatment, the suction filter device is mainly used for filtering and treating sewage to achieve the purpose of purifying water quality. In sewage treatment, the suction filter device is usually used for preliminary separation of solid matter to avoid damage to subsequent treatment equipment.

[0003] The commonly used filtration devices on the market are composed of a Büchner funnel, a sand core funnel, a glass filtrate holding bottle and a receiving bottle, but they are heavy, have a high breakage rate, occupy a large storage area, are inconvenient to carry, and are difficult to use in batches during experiments or to carry out for use. Utility Model Content

[0004] The purpose of the utility model is to provide a disposable vacuum filtration device, which has the advantages of small size, light weight, convenient carrying and easy disassembly and maintenance, and reduced operating difficulty, so as to solve the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a disposable vacuum filtration device, comprising a filtrate holding bottle, a filter, a negative pressure pump and a filtrate receiving bottle, an upper connecting ring is fixed at the upper opening of the filter, side grooves are provided at the lower ends of both sides of the filter, and a threaded cylinder is rotatably installed at the inner top of the side groove through a rotating shaft, a docking port is provided at the lower end of the filter, a first docking tube is installed through the inside of the negative pressure pump, and the top of the first docking tube is connected to the docking port, batteries are embedded and installed on both sides of the negative pressure pump, a lower connecting ring is fixed at the lower opening of the negative pressure pump, connecting rods are fixed on both sides of the upper end of the negative pressure pump, a second docking tube is installed through the lower end of the filtrate holding bottle and the upper end of the filtrate receiving bottle, and the two second docking tubes are respectively threadedly installed in the upper connecting ring and the lower connecting ring, and an end cap is rotatably installed at the upper opening of the filtrate holding bottle through a hinge.

[0006] When using a disposable vacuum filtration device in the technical solution, during assembly, the fine filter cartridge is inserted into the inner side of the first butt joint, and then the first butt joint of the negative pressure pump is connected to the butt joint on the lower side of the filter, and the connecting rod is connected to the side groove at the same time, and then the threaded cylinders on both sides are synchronously rotated to make the top thread of the connecting rod enter the threaded cylinder to make the connection stable, and the second butt joint of the filtrate receiving bottle is threadedly connected to the lower connecting ring at the lower end of the negative pressure pump, and the coarse filter cartridge is inserted into the internal opening of the upper connecting ring, and is limited by the gasket, and then the second butt joint of the filtrate holding bottle is threadedly connected to the upper connecting ring at the upper end of the filter. At this time, the device assembly is completed, and the solution is injected into the filtrate holding bottle after the end cover is opened by rotating, and the external switch of the negative pressure pump is started, and the battery is powered. At this time, negative pressure is formed in the first butt joint, and the solution is introduced into the filter through the coarse filter cartridge, and the preliminary coarse filtration is completed by the filter membrane in the coarse filter cartridge. The solution in the filter is introduced into the first butt joint through the fine filter cartridge, and the filter membrane in the fine filter cartridge completes the secondary filtration, and then the solution is introduced into the filtrate receiving bottle for storage.

[0007] Preferably, a fine filter cartridge is inserted into the upper opening of the first butt joint pipe, and a coarse filter cartridge is inserted into the upper opening of the filter. The plug-in installation facilitates the convenient disassembly and maintenance of the fine filter cartridge and the coarse filter cartridge in the later stage.

[0008] Preferably, a gasket is sleeved and fixed on the upper side of the coarse filter cartridge, and the gasket fits the inner bottom end of the upper connecting ring. The gasket limits the coarse filter cartridge, making it easy to remove and maintain.

[0009] Preferably, the fine filter cartridge and the coarse filter cartridge are both provided with filter membranes, and the filtration operation of the fine filter cartridge and the coarse filter cartridge is completed through the filter membrane, and the coarse filtration and fine filtration are completed twice according to the demand.

[0010] Preferably, the upper end of the connecting rod is inserted into the corresponding side groove, and the top end of the connecting rod is threadedly installed inside the threaded barrel. The filter and the negative pressure pump are connected and fixed by the threaded connection between the connecting rod and the threaded barrel.

[0011] Preferably, the second butt joint of the filtrate holding bottle is threadedly connected to the upper connecting ring, and the second butt joint of the filtrate receiving bottle is threadedly connected to the lower connecting ring. The solution in the filtrate holding bottle is introduced into the filter through the upper connecting ring, and the solution entering the first butt joint inside the negative pressure pump is introduced into the filtrate receiving bottle through the lower connecting ring.

[0012] Preferably, the filtrate holding bottle and the filtrate receiving bottle are both made of polypropylene. The lighter material design reduces the weight of the device, reduces costs, and facilitates cleaning.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: during assembly, the fine filter cartridge is inserted into the inner side of the first butt joint tube, and then the first butt joint tube of the negative pressure pump is butted against the butt joint on the lower side of the filter, and at the same time, the connecting rod is butted against the side groove, and then the threaded tubes on both sides are synchronously rotated so that the top thread of the connecting rod enters the threaded tube to make the connection stable, and the second butt joint tube of the filtrate receiving bottle is threadedly connected to the lower connecting ring at the lower end of the negative pressure pump, and the coarse filter cartridge is inserted into the inner opening of the upper connecting ring, and is limited by the gasket, and then the second butt joint tube of the filtrate receiving bottle is threadedly connected to the upper connecting ring at the upper end of the filter. At this time, the device assembly is completed, and the solution is passed through After turning to open the end cover, inject the filtrate into the filtrate receiving bottle, start the external switch of the negative pressure pump, and power the battery. At this time, negative pressure is formed in the first pipe, and the solution is introduced into the filter through the coarse filter cartridge, and the preliminary coarse filtration is completed by the filter membrane in the coarse filter cartridge. The solution in the filter is introduced into the first pipe through the fine filter cartridge, and the filter membrane in the fine filter cartridge completes the secondary filtration. Then the solution is introduced into the filtrate receiving bottle for storage. The device has a simple structure and is easy to operate. The integrated design reduces the space occupied by the device and is convenient for carrying and operation. The convenient combination design facilitates later disassembly and maintenance. Double filtration ensures the quality of filtration and has strong operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the filter of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the filter of the utility model when viewed from above.

[0018] In the figure: 1. end cap; 2. filtrate holding bottle; 3. upper connecting ring; 4. filter; 5. negative pressure pump; 6. lower connecting ring; 7. filtrate receiving bottle; 8. second butt joint; 9. fine filter cartridge; 10. battery; 11. connecting rod; 12. first butt joint; 13. coarse filter cartridge; 14. gasket; 15. docking port; 16. side groove; 17. threaded cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figures 1 to 4 The utility model provides an embodiment: a disposable vacuum filtration device, comprising a filtrate holding bottle 2, a filter 4, a negative pressure pump 5 and a filtrate receiving bottle 7, an upper connecting ring 3 is fixed at the upper end opening of the filter 4, side grooves 16 are provided at the lower ends of both sides of the filter 4, and a threaded cylinder 17 is installed on the top end of the side groove 16 through a rotating shaft, a docking port 15 is provided at the lower end of the filter 4, a first docking tube 12 is installed through the inside of the negative pressure pump 5, and the top end of the first docking tube 12 is connected to the docking port 15, a fine filter cartridge 9 is inserted in the upper end opening of the first docking tube 12, and the filter A coarse filter cartridge 13 is inserted into the upper opening of the device 4, and the plug-in installation is convenient for the convenient disassembly and maintenance of the fine filter cartridge 9 and the coarse filter cartridge 13 in the later stage. A gasket 14 is fixed on the upper side of the coarse filter cartridge 13, and the gasket 14 fits the inner bottom end of the upper connecting ring 3. The coarse filter cartridge 13 is limited by the gasket 14, which is convenient for removal and maintenance. The fine filter cartridge 9 and the coarse filter cartridge 13 are both provided with filter membranes inside, and the filtering operation of the fine filter cartridge 9 and the coarse filter cartridge 13 is completed by the filter membrane. The coarse filtration and fine filtration are completed twice as required. Batteries 10 are embedded and installed on both sides of the negative pressure pump 5, and a lower connecting ring 6 is fixed at the lower opening of the negative pressure pump 5.

[0022] Embodiment 2

[0023] See also Figures 1 to 4 The utility model provides an embodiment: a disposable vacuum filtration device, further comprising:

[0024] Connecting rods 11 are fixed on both sides of the upper end of the negative pressure pump 5, and the upper ends of the connecting rods 11 are inserted into the corresponding side grooves 16, and the top of the connecting rods 11 is threadedly installed inside the threaded tube 17. The filter 4 and the negative pressure pump 5 are connected and fixed by the threaded connection between the connecting rods 11 and the threaded tube 17. The lower end of the filtrate holding bottle 2 and the upper end of the filtrate receiving bottle 7 are penetrated and installed with second butt joints 8, and the two second butt joints 8 are respectively threadedly installed in the upper connecting ring 3 and the lower connecting ring 6. The upper opening of the filtrate holding bottle 2 is connected to the filter 4. An end cap 1 is installed by rotating through a hinge, the second butt joint pipe 8 of the filtrate holding bottle 2 is threadedly connected to the upper connecting ring 3, and the second butt joint pipe 8 of the filtrate receiving bottle 7 is threadedly connected to the lower connecting ring 6. The solution in the filtrate holding bottle 2 is introduced into the filter 4 through the upper connecting ring 3, and the solution entering the first butt joint pipe 12 on the inner side of the negative pressure pump 5 is introduced into the filtrate receiving bottle 7 through the lower connecting ring 6. The filtrate holding bottle 2 and the filtrate receiving bottle 7 are both made of polypropylene. Through a relatively light material design, the weight of the device is reduced, while the cost is reduced and cleaning is convenient.

[0025] During the operation of the utility model, when assembling, the fine filter cartridge 9 is inserted into the inner side of the first butt joint pipe 12, and then the first butt joint pipe 12 of the negative pressure pump 5 is connected to the butt joint 15 on the lower side of the filter 4, and the connecting rod 11 is connected to the side groove 16, and then the threaded tubes 17 on both sides are rotated synchronously, so that the top thread of the connecting rod 11 enters the threaded tube 17 to make the connection stable, and the second butt joint pipe 8 of the filtrate receiving bottle 7 is threadedly connected to the lower connecting ring 6 at the lower end of the negative pressure pump 5, and the coarse filter cartridge 13 is inserted into the inner opening of the upper connecting ring 3, and is limited by the gasket 14, and then the filtrate receiving bottle 2 is connected. The second butt joint 8 is threadedly connected to the upper connecting ring 3 at the upper end of the filter 4. At this time, the device assembly is completed, and the solution is injected into the filtrate holding bottle 2 after the end cover 1 is opened by rotating, and the external switch of the negative pressure pump 5 is started, and the battery 10 is powered. At this time, negative pressure is formed in the first butt joint 12, and the solution is introduced into the filter 4 through the coarse filter cartridge 13, and the preliminary coarse filtration is completed by the filter membrane in the coarse filter cartridge 13. The solution in the filter 4 is introduced into the first butt joint 12 through the fine filter cartridge 9, and the filter membrane in the fine filter cartridge 9 completes the secondary filtration, and then the solution is introduced into the filtrate receiving bottle 7 for storage.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A disposable vacuum filtration device, comprising a filtrate holding bottle (2), a filter (4), a negative pressure pump (5) and a filtrate receiving bottle (7), characterized in that: An upper connecting ring (3) is fixed at the upper opening of the filter (4), side grooves (16) are provided at the lower ends of both sides of the filter (4), and a threaded cylinder (17) is rotatably installed at the top end of the side groove (16) through a rotating shaft, a docking port (15) is provided at the lower end of the filter (4), a first docking pipe (12) is installed through the inside of the negative pressure pump (5), and the top end of the first docking pipe (12) is connected to the docking port (15), and both sides of the negative pressure pump (5) are embedded with mounting holes. A storage battery (10) is installed, a lower connecting ring (6) is fixed at the lower opening of the negative pressure pump (5), connecting rods (11) are fixed on both sides of the upper end of the negative pressure pump (5), the lower end of the filtrate holding bottle (2) and the upper end of the filtrate receiving bottle (7) are penetrated by a second butt joint pipe (8), and the two second butt joint pipes (8) are respectively threadedly installed in the upper connecting ring (3) and the lower connecting ring (6), and an end cover (1) is rotatably installed at the upper opening of the filtrate holding bottle (2) through a hinge.

2. A disposable vacuum filtration device according to claim 1, characterized in that: A fine filter cartridge (9) is inserted into the upper opening of the first butt joint tube (12), and a coarse filter cartridge (13) is inserted into the upper opening of the filter (4).

3. A disposable vacuum filtration device according to claim 2, characterized in that: A gasket (14) is sleeved and fixed on the upper side of the coarse filter cartridge (13), and the gasket (14) fits the inner bottom end of the upper connecting ring (3).

4. A disposable vacuum filtration device according to claim 2, characterized in that: The fine filter cartridge (9) and the coarse filter cartridge (13) are both provided with filter membranes inside.

5. A disposable vacuum filtration device according to claim 1, characterized in that: The upper end of the connecting rod (11) is inserted into the corresponding side groove (16), and the top end of the connecting rod (11) is threadedly installed inside the threaded cylinder (17).

6. A disposable vacuum filtration device according to claim 1, characterized in that: The second butt joint pipe (8) of the filtrate holding bottle (2) is threadedly connected to the upper connecting ring (3), and the second butt joint pipe (8) of the filtrate receiving bottle (7) is threadedly connected to the lower connecting ring (6).

7. A disposable vacuum filtration device according to claim 1, characterized in that: The filtrate holding bottle (2) and the filtrate receiving bottle (7) are both made of polypropylene.

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