Ultrafiltration membrane filter element convenient to replace

Abstract

The utility model relates to the technical field of ultrafiltration membrane filter elements, and provides an ultrafiltration membrane filter element convenient to replace, which comprises a shell and a filter membrane, a filter membrane is arranged in the shell; a base is arranged at the bottom end of the inner side wall of the shell, and a connecting base is arranged at the top end of the base. By arranging the limiting structure, when the filter membrane needs to be replaced, the rotating shaft is rotated, so that the convex block does not abut against the limiting block any more, at the moment, the telescopic block shrinks in the telescopic groove under the elastic force brought by the spring, and the telescopic block drives the limiting block to shrink in the limiting groove, so that the limiting block does not abut against the filter membrane any more; at the moment, the filter membrane is taken out, a new filter membrane is put in, and then the rotating shaft is rotated, so that one end of the convex block is propped against the limiting block to extend and retract outwards until one section of the limiting block is propped against the new filter membrane, and the limiting effect is completed, so that the limiting function of the filter element is realized, and the ease of operation of the ultrafiltration membrane filter element convenient to replace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membrane filter elements, in particular to an ultrafiltration membrane filter element which is convenient to replace. Background Art

[0002] With the development of the times, science and technology are constantly improving. In order to purify sewage, ultrafiltration membranes are often used. Ultrafiltration membranes can retain most of the suspended solids and colloids in the water, and play an important role in the field of sewage purification. Therefore, the emergence of an ultrafiltration membrane filter element that is easy to replace is particularly important.

[0003] To this end, the patent with publication number CN212017409U discloses a filter element with convenient disassembly and assembly of ultrafiltration membrane, comprising a cylinder and a filter element installed in the cylinder, wherein the filter element is connected to the cylinder through a protective mechanism, and the arc-shaped plate of the utility model is wrapped around the side of the filter element, which can protect the filter element, and because the arc-shaped plate and the cylinder are connected by a vibration-damping spring, the filter element can be clamped, the plug block is fixedly connected to the bottom side of the inner wall of the cylinder, the slot is opened on the bottom wall of the filter element, the plug block and the slot are plugged into each other, and the stability of the filter element can be enhanced by the arrangement of the plug block and the slot, the limit rod and the cylinder are hingedly connected, and the limit rod can be stuck in the groove of the filter element when rotating, so as to limit the sliding of the filter element in the vertical direction;

[0004] The above-mentioned filter element with easy disassembly and assembly of ultrafiltration membrane not only protects the filter element but also performs position limiting treatment. However, it is more troublesome to operate, and the plug needs to be aligned with the slot, which is not convenient and is inconvenient to disassemble, clean and replace as a whole. Utility Model Content

[0005] The utility model aims to provide an ultrafiltration membrane filter element which is convenient to replace, so as to solve the defect that the existing ultrafiltration membrane filter element which is convenient to replace is inconvenient to limit.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an ultrafiltration membrane filter element that is easy to replace, comprising a housing and a filter membrane; the filter membrane is arranged inside the housing;

[0007] A base is provided at the bottom end of the inner side wall of the shell, a connecting seat is provided at the top end of the base, a limiting structure is provided at the top end of the connecting seat, the limiting structure comprises a rotating shaft, a protrusion, an outer ring, a limiting groove, a telescopic groove, a limiting block, a telescopic block and a spring, the rotating shaft is provided at the top end of the connecting seat, protrusions are evenly provided on the outer wall of the rotating shaft, an outer ring is provided at the top end of the disassembly structure outside the protrusion, limiting grooves are evenly provided inside the outer ring, telescopic grooves are provided on both sides of the limiting groove, limiting blocks are provided inside the limiting grooves, telescopic blocks are provided inside the telescopic grooves on both sides of the limiting blocks, and a spring is fixed to one side of the telescopic block;

[0008] The top end of the shell is provided with a disassembly structure.

[0009] Preferably, the protrusions are distributed at equal intervals on the outer wall of the rotating shaft, the bottom end of the rotating shaft and the connecting seat are designed to be threadedly connected, and one side of the protrusion is designed to be arc-shaped. When the protrusion rotates with the rotating shaft, the protrusion can easily push the limit block out of the outer ring.

[0010] Preferably, the central axis of the rotating shaft and the central axis of the outer ring are collinear, and the limiting grooves are distributed at equal intervals inside the outer ring.

[0011] Preferably, the telescopic slots are symmetrically distributed on both sides of the limiting slot, and one end of the limiting block passes through the limiting slot and contacts the inner wall of the filter membrane.

[0012] Preferably, one end of the spring away from the telescopic block is fixedly connected to the inside of the telescopic slot, and the limiting block forms a telescopic structure with the limiting slot through the telescopic block and the spring.

[0013] Preferably, the disassembly and assembly structure includes a top cover, a handle and a plug. The top cover is arranged at the top end of the shell, the handle is fixed to the top cover, and the plug is fixed inside the shell at the bottom end of the top cover.

[0014] Preferably, an external thread is provided on the outer wall of the plug, and an internal thread is provided on the top of the inner wall of the shell, and the plug and the shell are designed to be threadedly connected.

[0015] The utility model provides an ultrafiltration membrane filter element that is easy to replace, which has the following advantages:

[0016] By providing a limited position structure, when the filter membrane needs to be replaced, the rotating shaft is rotated so that the protrusion and the limit block no longer interfere with each other. At this time, the telescopic block is retracted inside the telescopic slot due to the elastic force brought by the spring, and the telescopic block drives the limit block to retract inside the limit slot, so that it no longer interferes with the filter membrane. At this time, the filter membrane is taken out and a new filter membrane is inserted, and the rotating shaft is rotated again so that one end of the protrusion presses against the limit block and extends outwards until a section of the limit block interferes with the new filter membrane. The limiting function of the filter element is realized, and the ease of operation of the ultrafiltration membrane filter element that is convenient to replace is improved.

[0017] By providing a disassembly and assembly structure, the handle is grasped to align the plug with the shell, and the top cover is rotated to assemble the plug and the shell together to complete the assembly. When the filter membrane needs to be replaced, the top cover can be rotated in the opposite direction, thereby realizing the function of disassembly and assembly of the filter element and improving the convenience of the ultrafiltration membrane filter element that is easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of a top-view cross-sectional structure of the utility model;

[0021] Figure 4 For the utility model Figure 3 A in the middle is an enlarged structural diagram;

[0022] Figure 5 This is a schematic diagram of the base structure from a top view of the present invention.

[0023] Explanation of the reference numerals in the figure: 1. outer shell; 2. filter membrane; 3. base; 4. connecting seat; 5. limiting structure; 501. rotating shaft; 502. protrusion; 503. outer ring; 504. limiting groove; 505. telescopic groove; 506. limiting block; 507. telescopic block; 508. spring; 6. disassembly and assembly structure; 601. top cover; 602. handle; 603. plug. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 The utility model provides an ultrafiltration membrane filter element that is easy to replace, including a shell 1 and a filter membrane 2.

[0026] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a filter membrane 2 is provided inside the housing 1, a base 3 is provided at the bottom end of the inner side wall of the housing 1, a connecting seat 4 is provided at the top end of the base 3, a limiting structure 5 is provided at the top end of the connecting seat 4, and the limiting structure 5 includes a rotating shaft 501, a protrusion 502, an outer ring 503, a limiting groove 504, a telescopic groove 505, a limiting block 506, a telescopic block 507 and a spring 508. The rotating shaft 501 is provided at the top end of the connecting seat 4, and protrusions 502 are evenly provided on the outer wall of the rotating shaft 501. The top end of the disassembly structure 6 outside the protrusion 502 is provided with an outer ring 503, and limiting grooves 504 are evenly provided inside the outer ring 503. Telescopic grooves 505 are provided on both sides of the limiting groove 504, and limiting blocks 506 are provided inside the limiting groove 504. 06. Telescopic blocks 507 are provided inside the telescopic slots 505 on both sides, and a spring 508 is fixed on one side of the telescopic blocks 507. The protrusions 502 are distributed at equal intervals on the outer wall of the rotating shaft 501, and the bottom end of the rotating shaft 501 and the connecting seat 4 are threadedly connected. The central axis of the rotating shaft 501 and the central axis of the outer ring 503 are collinear, and the limiting grooves 504 are distributed at equal intervals inside the outer ring 503. The telescopic slots 505 are symmetrically distributed on both sides of the limiting groove 504. One end of the limiting block 506 passes through the limiting groove 504 and conflicts with the inner wall of the filter membrane 2. The end of the spring 508 away from the telescopic block 507 is fixedly connected to the inside of the telescopic slot 505. The limiting block 506 forms a telescopic structure with the limiting slot 504 through the telescopic block 507 and the spring 508.

[0027] When the filter membrane 2 needs to be replaced, the rotating shaft 501 is rotated so that the protrusion 502 and the limit block 506 no longer conflict with each other. At this time, the telescopic block 507 is retracted inside the telescopic groove 505 by the elastic force brought by the spring 508, and the telescopic block 507 drives the limit block 506 to contract inside the limit groove 504, so that it no longer conflicts with the filter membrane 2. At this time, the filter membrane 2 is taken out and a new filter membrane 2 is inserted and then the rotating shaft 501 is rotated again, so that one end of the protrusion 502 is against the limit block 506 and expands outward until a section of the limit block 506 conflicts with the new filter membrane 2 and the limiting function is completed.

[0028] Reference Figure 1 and Figure 2 As shown, a disassembly structure 6 is provided at the top of the shell 1, and the disassembly structure 6 includes a top cover 601, a handle 602 and a plug 603. The top cover 601 is provided at the top of the shell 1, and the handle 602 is fixed to the top cover 601. A plug 603 is fixed inside the shell 1 at the bottom end of the top cover 601. An external thread is provided on the outer wall of the plug 603, and an internal thread is provided on the top of the inner wall of the shell 1. The plug 603 and the shell 1 are designed to be threadedly connected.

[0029] Grab the handle 602 and align the plug 603 with the housing 1 , then rotate the top cover 601 to assemble the plug 603 and the housing 1 together to complete the assembly. When the filter membrane 2 needs to be replaced, rotate the top cover 601 in the opposite direction.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A conveniently replaceable ultrafiltration membrane filter element, comprising a housing (1) and a filter membrane (2); Its characteristics are: A filter membrane (2) is provided inside the housing (1); A base (3) is provided at the bottom end of the inner side wall of the housing (1), a connecting seat (4) is provided at the top end of the base (3), a limiting structure (5) is provided at the top end of the connecting seat (4), the limiting structure (5) comprises a rotating shaft (501), a protrusion (502), an outer ring (503), a limiting groove (504), a telescopic groove (505), a limiting block (506), a telescopic block (507) and a spring (508), the rotating shaft (501) is provided at the top end of the connecting seat (4), and the outer wall of the rotating shaft (501) is uniformly provided with a plurality of protrusions (502), an outer ring (503), a limiting groove (504), a telescopic groove (505), a limiting block (506), a telescopic block (507) and a spring (508). A convex block (502) is provided, an outer ring (503) is provided at the top of the outer disassembly structure (6) of the convex block (502), a limiting groove (504) is evenly provided inside the outer ring (503), telescopic grooves (505) are provided on both sides of the limiting groove (504), a limiting block (506) is provided inside the limiting groove (504), telescopic blocks (507) are provided inside the telescopic grooves (505) on both sides of the limiting block (506), and a spring (508) is fixed on one side of the telescopic block (507); The top end of the housing (1) is provided with a disassembly and assembly structure (6).

2. The ultrafiltration membrane filter element that is easily replaceable according to claim 1, characterized in that: The protrusions (502) are distributed at equal intervals on the outer wall of the rotating shaft (501), and the bottom end of the rotating shaft (501) and the connecting seat (4) are designed to be threadedly connected.

3. The ultrafiltration membrane filter element that is easily replaceable according to claim 1, characterized in that: The central axis of the rotating shaft (501) and the central axis of the outer ring (503) are collinear, and the limiting grooves (504) are distributed at equal intervals inside the outer ring (503).

4. The ultrafiltration membrane filter element that is easily replaceable according to claim 1, characterized in that: The telescopic grooves (505) are symmetrically distributed on both sides of the limiting groove (504), and one end of the limiting block (506) passes through the limiting groove (504) and contacts the inner wall of the filter membrane (2).

5. The ultrafiltration membrane filter element that is easily replaceable according to claim 1, characterized in that: One end of the spring (508) away from the telescopic block (507) is fixedly connected to the inside of the telescopic slot (505), and the limiting block (506) forms a telescopic structure with the limiting slot (504) through the telescopic block (507) and the spring (508).

6. The ultrafiltration membrane filter element that is easily replaceable according to claim 1, characterized in that: The disassembly and assembly structure (6) comprises a top cover (601), a handle (602) and a plug (603); the top cover (601) is arranged at the top end of the outer shell (1); the handle (602) is fixed to the top cover (601); and the plug (603) is fixed inside the outer shell (1) at the bottom end of the top cover (601).

7. The ultrafiltration membrane filter element that is easily replaceable according to claim 6, characterized in that: An external thread is provided on the outer wall of the plug (603), and an internal thread is provided on the top of the inner wall of the shell (1). The plug (603) and the shell (1) are designed to be threadedly connected.

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