Split type film washing device

Abstract

The utility model relates to a split type film washing device which comprises an inner box and an outer box, the inner box is arranged in the outer box, a water outlet is formed in the bottom of the inner box, a blocking piece is arranged above the water outlet, the blocking piece is connected with a moving structure, and the moving structure enables the blocking piece to move downwards to the water outlet or enables the blocking piece to move away from the water outlet. According to the membrane washing device, waste eluent does not need to be poured repeatedly in the membrane washing process, so that the PVDF membrane is prevented from being poured out by mistake when the liquid is poured repeatedly, the PVDF membrane is prevented from being polluted, and an experiment fails.

Description

Technical Field

[0001] The utility model relates to the field of film washing instruments, in particular to a split-type film washing device. Background Technique

[0002] At present, film washing is mainly completed through a film washing box. The PVDF film is placed in the film washing box, and the eluent (TBST) is added. Then the film washing box is placed on a horizontal shaker. After the first film washing is completed, the eluent is poured out; then new TBST is added again and the above operation steps are repeated until the film washing is completed. Finally, after taking out the PVDF film, the waste liquid is poured out, and it is cleaned and dried.

[0003] In this way, it is necessary to repeatedly pour out the waste eluent. Due to repeatedly pouring the liquid, it is very easy to accidentally pour out the PVDF film, resulting in the PVDF film being contaminated and the experiment failing. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a split-type film washing device, which does not need to repeatedly pour out the waste eluent during the film washing process, and avoids accidentally pouring out the PVDF film and causing it to be contaminated and the experiment to fail.

[0005] The purpose of the utility model is realized through the following technical solutions:

[0006] A split-type film washing device includes an inner box and an outer box. The inner box is arranged inside the outer box. A water outlet is provided at the bottom of the inner box. A blocking member is provided above the water outlet. The blocking member is connected with a moving structure, and the moving structure moves the blocking member down to the water outlet or moves the blocking member away from the water outlet.

[0007] Further, the moving structure includes a blocking groove and a lifting rod. The middle part of the lifting rod is arranged in the blocking groove. Both ends of the lifting rod extend out of the blocking groove. The bottom of the lifting rod is connected with the blocking member, and a lifting handle is provided at the top of the lifting rod.

[0008] Further, a spring is sleeved on the part of the lifting rod arranged in the blocking groove, and both ends of the spring abut against the inner top and the inner bottom of the blocking groove.

[0009] Further, through holes are provided at the top and the bottom of the blocking groove, and both ends of the lifting rod extend out of the through holes.

[0010] Further, a sealing member is provided on the through hole.

[0011] Further, a sealing ring is provided at the water outlet.

[0012] Further, the blocking member is a circular blocking piece, and the diameter of the circular blocking piece is larger than the diameter of the water outlet.

[0013] Further, a limiting member is provided on the outer wall of the inner box, and the limiting member limits the height of the inner box inside the outer box.

[0014] Furthermore, a support member is provided on the inner wall of the outer box, and the limiting member abuts against the support member.

[0015] Furthermore, a clamping member is provided on the inner wall of the outer box, and the clamping member is provided above the support member and the limiting member.

[0016] The beneficial effects of the present utility model are as follows:

[0017] Through the present utility model, there is no need to repeatedly pour the waste eluent during the film washing process, thereby avoiding accidentally pouring out the PVDF membrane when repeatedly pouring the liquid, resulting in contamination of the PVDF membrane and causing experimental failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is Figure 1 a sectional view taken along A-A;

[0020] Figure 3 is Figure 1 a sectional view taken along B-B;

[0021] Figure 4 is a schematic structural diagram of Embodiment III.

[0022] In the figures, 1-inner box, 2-outer box, 3-limiting member, 4-support member, 5-clamping member, 6-water outlet, 7-sealing ring, 8-blocking groove, 9-lifting rod, 10-blocking member, 11-spring, 12-lifting handle, 13-through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0024] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0025] Embodiment I:

[0026] As shown Figures 1 to 3 in the figure, a split film washing device includes an inner box 1 and an outer box 2 both with openings at the top. The inner box 1 is arranged inside the outer box 2. A water outlet 6 is provided at the bottom of the inner box 1. Above the water outlet 6, a blocking member 10 is provided. The blocking member 10 is connected with a moving structure, and the moving structure moves the blocking member 10 down to the water outlet 6 or moves the blocking member 10 away from the water outlet 6.

[0027] The moving structure includes a blocking groove 8 and a lifting rod 9. The middle part of the lifting rod 9 is arranged inside the blocking groove 8. Both ends of the lifting rod 9 extend out of the blocking groove 8. The bottom of the lifting rod 9 is connected with the blocking member 10, and a lifting handle 12 is provided at the top of the lifting rod 9.

[0028] The blocking member 10 blocks the water outlet 6 by its own gravity.

[0029] A spring 11 is sleeved on the part of the lifting rod 9 arranged inside the blocking groove 8. Both ends of the spring 11 abut against the inner top and inner bottom of the blocking groove 8. After the spring 11 is provided, the blocking member 10 blocks the water outlet 6 by the elastic force of the spring 11, and the effect is better.

[0030] Through holes 13 are provided at both the top and bottom of the blocking groove 8. Both ends of the lifting rod 9 extend out of the through holes 13.

[0031] Sealing members are provided on the through holes 13.

[0032] A sealing ring 7 is provided on the water outlet 6.

[0033] The inner box 1 is slightly smaller than the outer box 2, and the inner box 1 can be buckled on the outer box 2 through the buckles on the four walls.

[0034] The water outlet 6 is arranged at a corner of the bottom of the inner box 1, and the water outlet 6 is provided with a sealing ring 7 to prevent liquid from overflowing.

[0035] The blocking piece groove is arranged on the box wall near the water outlet 6, and the blocking piece groove is airtight all around from the bottom to the top.

[0036] The blocking member 10 is a circular blocking piece, and the diameter of the circular blocking piece is larger than the diameter of the water outlet 6.

[0037] The outer box 2 is a transparent rectangular box. The inner box 1 is a film washing box, and the outer box 2 is a waste liquid box.

[0038] Usage method:

[0039] When in use, place the inner box 1 inside the outer box 2, put the PVDF membrane into the inner box 1, add the eluent (TBST), and place a split membrane washing device on a horizontal shaker. After the first membrane washing is completed, lift the handle 12 of the lifting rod 9 so that TB5T flows into the outer box 2 through the water outlet 6 of the inner box 1. After the TBST has flowed out, release the handle 12, and rely on the force of the spring 11 to reset the handle 12. The stopper 10 below the handle 12 covers the water outlet 6 again, add new TBST again, and repeat the above operation steps until the membrane washing is completed. After taking out the PVDF membrane, remove the inner box 1, pour out the waste liquid in the outer box 2, and clean and dry it.

[0040] With a split membrane washing device, there is no need to repeatedly pour out the waste eluent during the membrane washing process, thus avoiding accidentally pouring out the PVDF membrane when repeatedly pouring the liquid, resulting in contamination of the PVDF membrane and failure of the experiment.

[0041] Embodiment 2:

[0042] As Figures 1 to 3 shown, Embodiment 2 has all the features of Embodiment 1, the difference is that:

[0043] A limiting member 3 is provided on the outer wall of the inner box 1, and the limiting member 3 limits the height of the inner box 1 inside the outer box 2.

[0044] A supporting member 4 is provided on the inner wall of the outer box 2, and the limiting member 3 abuts against the supporting member 4.

[0045] A clamping member 5 is provided on the inner wall of the outer box 2, and the clamping member 5 is provided above the supporting member 4 and the limiting member 3.

[0046] Through the clamping member 5, it is possible to prevent the inner box 1 from being lifted when the lifting rod 9 is pulled up.

[0047] Embodiment 3:

[0048] As Figure 4 shown, Embodiment 3 has all the features of Embodiment 1, the difference is that:

[0049] A limiting member 3 is provided on the outer wall of the inner box 1, and the limiting member 3 limits the height of the inner box 1 inside the outer box 2.

[0050] The limiting member 3 is provided at the top edge of the outer box 2.

[0051] The above embodiments only represent the specific implementation manners of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A split membrane washing device, characterized in that: It comprises an inner box and an outer box, wherein the inner box is arranged in the outer box, a water outlet is arranged at the bottom of the inner box, a blocking member is arranged above the water outlet, and the blocking member is connected with a moving structure, and the moving structure moves the blocking member down to the water outlet or moves the blocking member away from the water outlet; The movable structure comprises a blocking groove and a lifting rod, wherein the middle part of the lifting rod is arranged in the blocking groove, the two ends of the lifting rod extend out from the blocking groove, the bottom of the lifting rod is connected with the blocking member, and the top of the lifting rod is provided with a handle.

2. A split membrane washing device according to claim 1, characterized in that: The part of the lifting rod arranged in the retaining groove is sleeved with a spring, and two ends of the spring abut against the top and the inner bottom of the retaining groove.

3. A split membrane washing device according to claim 1, characterized in that: The top and bottom of the retaining groove are both provided with through holes, and the two ends of the lifting rod extend out from the through holes.

4. A split membrane washing device according to claim 3, characterized in that: The through hole is provided with a sealing member.

5. A split membrane washing device according to claim 1, characterized in that: The water outlet is provided with a sealing ring.

6. A split type membrane washing device according to claim 1, characterized in that: The blocking member is a circular blocking piece, and the diameter of the circular blocking piece is larger than the diameter of the water outlet.

7. A split type membrane washing device according to claim 1, characterized in that: The outer wall of the inner box is provided with a limiting member, and the limiting member limits the height of the inner box in the outer box.

8. A split type membrane washing device according to claim 7, characterized in that: A support is provided on the inner wall of the outer box, and the limiting member abuts against the support.

9. A split type membrane washing device according to claim 8, characterized in that: A clamping piece is arranged on the inner wall of the outer box, and the clamping piece is arranged above the supporting piece and the limiting piece.

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