Membrane filter

Abstract

The utility model discloses a membrane filter which comprises a mounting frame body, the top of the mounting frame body is fixedly connected with a lower filter shell in a penetrating manner, and an upper filter shell is arranged above the lower filter shell. According to the utility model, a third driving motor is started, so that a lifting connecting plate drives an upper filter shell to ascend, then a first driving motor is started, an output shaft of the first driving motor drives a first movable roller to rotate, so that a disposable filter membrane is unwound, and meanwhile, a second driving motor is started, an output shaft of the second driving motor drives a second movable roller to rotate, so that the disposable filter membrane is unwound. The second movable roller is used for rolling the used disposable filter membrane, so that the unused disposable filter membrane is positioned between the lower filter shell and the upper filter shell, and finally, a third driving motor is started to rotate reversely, so that the upper filter shell descends to be attached to the lower filter shell, the disposable filter membrane does not need to be manually replaced, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a membrane filter. Background Art

[0002] The membrane filter is a dual-purpose sterile inspection membrane filter, which has the characteristic of the universality of two culture methods, reasonable design, the filter part of the filter is made of glass material, with stable chemical properties, strong sealing degree, effectively preventing exogenous pollution and ensuring the success rate of bacterial inspection.

[0003] In the prior art, the membrane filter mainly includes a filter base, a filter cup installed on the filter base, and a cup cover covering the filter cup. A filter screen is arranged inside the filter base. When in use, a disposable filter membrane is placed on the filter screen, and then the filter cup is screwed or buckled onto the filter base by thread. After each experiment, it is necessary to reopen the filter cup to replace the disposable filter membrane, and the operation is very inconvenient. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a membrane filter to solve the disadvantages existing in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a membrane filter, including an installation frame body, a lower filter housing is fixedly connected through the top of the installation frame body, an upper filter housing is arranged above the lower filter housing, a driving component for driving the upper filter housing to rise is arranged at the rear side of the installation frame body, two first installation vertical plates and two second installation vertical plates are fixedly connected to the top of the installation frame body, a first movable roller is rotatably connected between the two first installation vertical plates, a second movable roller is rotatably connected between the two second installation vertical plates, a disposable filter membrane is arranged on the outer surface of the first movable roller, and the free end of the disposable filter membrane passes through the lower filter housing and the upper filter housing and is connected to the outer surface of the second movable roller.

[0006] As a further description of the above technical scheme:

[0007] The driving component includes a fixed connection seat fixedly connected to the rear side of the installation frame body, a third driving motor is fixedly connected to the upper surface of the fixed connection seat, a threaded rotating rod is fixedly connected to the output shaft of the third driving motor, a lifting connection plate is threadedly connected to the outer surface of the threaded rotating rod, the lifting connection plate is fixedly connected to the rear side of the upper filter housing, a limiting rod is fixedly connected to the upper surface of the fixed connection seat, and the lifting connection plate is slidably sleeved on the outer surface of the limiting rod.

[0008] As a further description of the above technical scheme:

[0009] A first driving motor is fixedly connected to the side wall of one of the first mounting vertical plates, and the output shaft of the first driving motor is fixedly connected to one end of the first movable roller.

[0010] As a further description of the above technical solution:

[0011] A second driving motor is fixedly connected to the side wall of one of the second mounting vertical plates, and the output shaft of the second driving motor is fixedly connected to one end of the second movable roller.

[0012] As a further description of the above technical solution:

[0013] A first rubber pad is fixedly connected to the upper surface of the lower filter housing, and a second rubber pad is fixedly connected to the lower surface of the upper filter housing.

[0014] As a further description of the above technical solution:

[0015] A housing cover is provided at the top of the upper filter housing, a carrying handle is fixedly connected to the upper surface of the housing cover, and a material discharge port is fixedly connected to the bottom of the lower filter housing.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, for this membrane filter, when the third driving motor is started, the lifting connecting plate drives the upper filter housing to rise, and then the first driving motor is started. The output shaft of the first driving motor drives the first movable roller to rotate, so that the disposable filter membrane is unrolled. At the same time, the second driving motor is started, the output shaft of the second driving motor drives the second movable roller to rotate, and the second movable roller winds up the used disposable filter membrane, so that the unused disposable filter membrane is located between the lower filter housing and the upper filter housing. Finally, the third driving motor is reversed to make the upper filter housing descend and fit with the lower filter housing, eliminating the need for manual replacement of the disposable filter membrane, with simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the first perspective three-dimensional view of the membrane filter proposed by the utility model;

[0019] Figure 2 is the second perspective three-dimensional view of the membrane filter proposed by the utility model;

[0020] Figure 3 is the schematic diagram of the lower filter housing and the upper filter housing of the membrane filter proposed by the utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Mounting frame; 2. Lower filter housing; 3. Upper filter housing; 4. Housing cover; 5. Feeding port; 6. First mounting vertical plate; 7. Second mounting vertical plate; 8. Disposable filter membrane; 9. First driving motor; 10. Second driving motor; 11. Fixed connection seat; 12. Third driving motor; 13. Threaded rotating rod; 14. Lifting connection plate; 15. First rubber pad. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Refer to Figures 1 to 3 , the thin film filter provided by the present invention: includes a mounting frame 1, the top of the mounting frame 1 is fixedly connected through and penetrated with a lower filter housing 2, an upper filter housing 3 is arranged above the lower filter housing 2, a first rubber pad 15 is fixedly connected to the upper surface of the lower filter housing 2, and a second rubber pad is fixedly connected to the lower surface of the upper filter housing 3. By providing the first rubber pad 15 and the second rubber pad, the sealing performance between the lower filter housing 2 and the upper filter housing 3 can be increased. A housing cover 4 is arranged on the top of the upper filter housing 3, a hand-held handle is fixedly connected to the upper surface of the housing cover 4, and a feeding port 5 is fixedly connected to the bottom of the lower filter housing 2;

[0025] A driving assembly for driving the upper filter housing 3 to rise is arranged at the rear side of the mounting frame 1. The driving assembly includes a fixed connection seat 11 fixedly connected to the rear side of the mounting frame 1, a third driving motor 12 is fixedly connected to the upper surface of the fixed connection seat 11, an output shaft of the third driving motor 12 is fixedly connected with a threaded rotating rod 13, a lifting connection plate 14 is threadedly connected to the outer surface of the threaded rotating rod 13, the lifting connection plate 14 is fixedly connected to the rear side of the upper filter housing 3, a limiting rod is fixedly connected to the upper surface of the fixed connection seat 11, and the lifting connection plate 14 is slidably sleeved on the outer surface of the limiting rod. Starting the third driving motor 12, the output shaft of the third driving motor 12 drives the threaded rotating rod 13 to rotate. When the threaded rotating rod 13 rotates, it drives the lifting connection plate 14 to rise or fall, so that the lifting connection plate 14 drives the upper filter housing 3 to rise or fall;

[0026] At the top of the mounting frame body 1, two first mounting vertical plates 6 and two second mounting vertical plates 7 are fixedly connected. A first movable roller is rotatably connected between the two first mounting vertical plates 6, and a second movable roller is rotatably connected between the two second mounting vertical plates 7. A disposable filter membrane 8 is arranged on the outer surface of the first movable roller. The free end of the disposable filter membrane 8 penetrates through the lower filter housing 2 and the upper filter housing 3 and is connected to the outer surface of the second movable roller. A first driving motor 9 is fixedly connected to the side wall of one of the first mounting vertical plates 6, and the output shaft of the first driving motor 9 is fixedly connected to one end of the first movable roller. A second driving motor 10 is fixedly connected to the side wall of one of the second mounting vertical plates 7, and the output shaft of the second driving motor 10 is fixedly connected to one end of the second movable roller. When the first driving motor 9 is started, the output shaft of the first driving motor 9 drives the first movable roller to rotate, so that the disposable filter membrane 8 is unrolled. At the same time, the second driving motor 10 is started, and the output shaft of the second driving motor 10 drives the second movable roller to rotate, and the second movable roller winds up the used disposable filter membrane 8.

[0027] Working principle:

[0028] During use, when the disposable filter membrane 8 has been used for a period of time, the third driving motor 12 is started. The output shaft of the third driving motor 12 drives the threaded rotating rod 13 to rotate. When the threaded rotating rod 13 rotates, it drives the lifting connecting plate 14 to rise, so that the lifting connecting plate 14 drives the upper filter housing 3 to rise. Then the first driving motor 9 is started, and the output shaft of the first driving motor 9 drives the first movable roller to rotate, so that the disposable filter membrane 8 is unrolled. At the same time, the second driving motor 10 is started, and the output shaft of the second driving motor 10 drives the second movable roller to rotate, and the second movable roller winds up the used disposable filter membrane 8, making the unused disposable filter membrane 8 located between the lower filter housing 2 and the upper filter housing 3. Finally, the third driving motor 12 is reversed, so that the upper filter housing 3 descends and fits with the lower filter housing 2.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A membrane filter, comprising a mounting frame (1), characterized in that: The top of the mounting frame (1) is penetrated and fixedly connected with a lower filter housing (2), an upper filter housing (3) is arranged above the lower filter housing (2), and a driving component for driving the upper filter housing (3) to rise is arranged on the rear side of the mounting frame (1), and two first mounting vertical plates (6) and two second mounting vertical plates (7) are fixedly connected to the top of the mounting frame (1), a first movable roller is rotatably connected between the two first mounting vertical plates (6), and a second movable roller is rotatably connected between the two second mounting vertical plates (7), and a disposable filter membrane (8) is arranged on the outer surface of the first movable roller, and the free end of the disposable filter membrane (8) penetrates the lower filter housing (2) and the upper filter housing (3) and is connected to the outer surface of the second movable roller.

2. The membrane filter according to claim 1, characterized in that: The drive assembly comprises a fixed connection seat (11) fixedly connected to the rear side of the mounting frame (1); a third drive motor (12) is fixedly connected to the upper surface of the fixed connection seat (11); an output shaft of the third drive motor (12) is fixedly connected to a threaded rotating rod (13); an outer surface of the threaded rotating rod (13) is threadedly connected to a lifting connection plate (14); the lifting connection plate (14) is fixedly connected to the rear side of the upper filter housing (3); a limit rod is fixedly connected to the upper surface of the fixed connection seat (11); and the lifting connection plate (14) is slidably sleeved on the outer surface of the limit rod.

3. The membrane filter according to claim 1, characterized in that: A first drive motor (9) is fixedly connected to the side wall of one of the first mounting vertical plates (6), and an output shaft of the first drive motor (9) is fixedly connected to one end of a first movable roller.

4. The membrane filter according to claim 1, characterized in that: A second drive motor (10) is fixedly connected to the side wall of one of the second mounting vertical plates (7), and an output shaft of the second drive motor (10) is fixedly connected to one end of a second movable roller.

5. The membrane filter according to claim 1, characterized in that: A first rubber pad (15) is fixedly connected to the upper surface of the lower filter housing (2), and a second rubber pad is fixedly connected to the lower surface of the upper filter housing (3).

6. The membrane filter according to claim 1, characterized in that: A housing cover (4) is provided on the top of the upper filter housing (3), a carrying handle is fixedly connected to the upper surface of the housing cover (4), and a discharge port (5) is fixedly connected to the bottom of the lower filter housing (2).

Images