Composite filtering membrane structure

Abstract

The utility model discloses a composite filtering membrane structure which comprises a filtering membrane body, an auxiliary filtering assembly is arranged on the outer side of the filtering membrane body and comprises a supporting ring arranged below the filtering membrane body, a cross-shaped supporting plate is fixedly installed on the inner side of the supporting ring, a filtering plate is arranged above the filtering membrane body, and a pressing ring is installed at the bottom end of the filtering plate. The supporting ring and the pressing ring are clamped, filtering holes are evenly formed in the filtering plate, clamping grooves are formed in the outer wall of the filtering plate at equal angles, and clamping fixing assemblies are installed at the bottom end of the supporting ring at equal angles; during working, the filter membrane body is clamped through the compression ring and the supporting ring, the filter plate filters large-particle impurities through the filter holes, the filter membrane body can filter small-particle impurities, the filter effect is improved, and a circulation space is formed among the filter plate, the compression ring and the filter membrane body, so that circulation of filtered liquid is facilitated; meanwhile, small-particle impurities filtered by the filtering membrane body are convenient to accumulate.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering membranes, in particular to a composite filtering membrane structure. Background Art

[0002] According to the patent document with the authorization announcement number of "CN207811422U" and the invention name of "a multi-layer filter membrane structure", the specification states: a multi-layer filter membrane structure, characterized in that it includes a porous material layer containing silica sand, a nylon filter layer, a graphene layer, and a biological carbon fiber layer arranged in sequence from top to bottom, the porous material layer is formed by curing a mixture containing silica sand and a binder with a curing agent, and has a microporous structure; the biological carbon fiber layer is made of polyacrylonitrile fiber, viscose fiber or asphalt fiber as a base material, and the porous material layer, the nylon filter layer, the graphene layer, and the biological carbon fiber layer are fixed together by bonding; the porous material layer has multiple layers, and the micropore diameters of the porous material layers of different layers decrease from top to bottom, the porous material layer is wavy, and the valley bottom of the upper porous material layer is arranged opposite to the wave peak of the lower porous material layer, but the following defects still exist:

[0003] Since the pore diameter of the filter membrane is small, when there are large impurities, the filter membrane is easily blocked or directly destroyed, affecting subsequent matters. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a composite filter membrane structure, which effectively solves the problem that the filter membrane is easily blocked or directly destroyed when there are large impurities due to the small diameter of the filter holes on the filter membrane.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite filter membrane structure, comprising a filter membrane body, wherein an auxiliary filter assembly is arranged on the outer side of the filter membrane body;

[0006] The auxiliary filtering assembly includes a supporting ring arranged below the filter membrane body, a cross supporting plate is fixedly installed on the inner side of the supporting ring, a filter plate is arranged above the filter membrane body, a pressure ring is installed at the bottom end of the filter plate, the supporting ring and the pressure ring are clamped, filter holes are evenly arranged on the filter plate, card grooves are arranged at equal angles on the outer wall of the filter plate, and a card-connecting fixing assembly is installed at equal angles at the bottom end of the supporting ring.

[0007] Preferably, the snap-fit ​​fixing assembly comprises a bottom box mounted at an equal angle on the bottom end of the support ring, a vertical plate is provided on one side of the bottom box, a clamping rod is fixedly mounted on one side of the vertical plate close to the filter plate, and the clamping rod is clamped into the interior of the clamping groove.

[0008] Preferably, a movable groove is opened inside the bottom box, a movable plate is movably installed inside the movable groove, a pull rod is installed on the side of the movable plate close to the vertical plate, one end of the pull rod passes through the side of the bottom box close to the vertical plate, and one end of the pull rod is fixedly connected to the vertical plate, and a spring is symmetrically installed on the side of the movable plate away from the vertical plate.

[0009] Preferably, a limit rotation groove is provided inside the bottom box, and the limit rotation groove is located above the movable groove. A rod groove is provided inside the bottom box, and the inner diameter of the rod groove is smaller than the inner diameter of the limit rotation groove. The rod groove is located above the movable groove, and the two ends of the rod groove respectively penetrate into the two sides of the bottom box. A limit rotation block is rotatably installed inside the limit rotation groove, and a rotating rod is coaxially installed on the limit rotation block. The rotating rod is located inside the rod groove, and a cam is installed at one end of the rotating rod close to the vertical plate, and a horizontal plate is provided below the cam, and the horizontal plate is fixedly installed on the vertical plate.

[0010] Preferably, a screw barrel is installed on the side of the bottom box away from the vertical plate, the screw barrel is connected to the rod groove, a screw rod is installed on the internal thread of the screw barrel, and an insertion rod is installed on one end of the screw rod close to the limit rotating block.

[0011] Preferably, a slot is provided inside the rotating rod, one end of the insertion rod is inserted into the slot, sliding slots are provided at equal angles on the inner wall of the slot, and sliding blocks are installed at equal angles on the outer wall of the end of the insertion rod, and the sliding blocks are slidably installed inside the sliding slots.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] During operation, the filter membrane body is clamped by the provided pressure ring and support ring, the filter plate filters large particles of impurities through the filter holes, and the filter membrane body can filter small particles of impurities, thereby improving the filtering effect. A circulation space is formed between the filter plate, the pressure ring and the filter membrane body, which is convenient for the circulation of the filtered liquid and the accumulation of small particles of impurities filtered by the filter membrane body.

[0014] During operation, the movable plate is set to pull the vertical plate toward the side of the support ring under the elastic force of the spring, so that the clamping rod is clamped into the clamping groove on the side wall of the support ring, and the support ring and the filter plate are clamped and fixed, which is convenient for disassembly and assembly, replacement of the filter membrane body and removal of small particle impurities;

[0015] During operation, the cam is driven to rotate by turning the screw rod. When the cam rotates to the point where it can no longer rotate, the cam exerts downward pressure on the cross plate, thereby improving the clamping stability of the support ring and the pressure ring on the filter membrane body and improving the filtration working stability of the filter membrane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a schematic diagram of a composite filtration membrane structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the auxiliary filtering component structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the bottom box structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the bottom box of the utility model;

[0022] Figure 5 It is a schematic diagram of the connection structure of the screw rod and the rotating rod of the utility model.

[0023] In the figure: 1. filter membrane body; 2. auxiliary filter assembly; 201. support ring; 202. cross support plate; 203. filter plate; 204. pressure ring; 205. filter hole; 206. card slot; 3. card fixing assembly; 301. bottom box; 302. vertical plate; 303. card rod; 304. movable slot; 305. movable plate; 306. pull rod; 307. spring; 308. horizontal plate; 309. limit rotation slot; 310. rod slot; 311. limit rotation block; 312. cam; 313. rotating rod; 314. screw barrel; 315. screw; 316. slot; 317. sliding slot; 318. plug rod; 319. sliding block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Embodiment 1, by Figure 1-5 The utility model relates to a composite filter membrane structure, comprising a filter membrane body 1, an auxiliary filter assembly 2 is arranged on the outer side of the filter membrane body 1;

[0026] The auxiliary filtering component 2 includes a supporting ring 201 arranged below the filter membrane body 1, a cross supporting plate 202 is fixedly installed on the inner side of the supporting ring 201, a filter plate 203 is arranged above the filter membrane body 1, a pressing ring 204 is installed at the bottom end of the filter plate 203, the supporting ring 201 and the pressing ring 204 are clamped, filter holes 205 are evenly opened on the filter plate 203, and slots 206 are opened at equal angles on the outer wall of the filter plate 203. A clamping fixing component 3 is installed at the bottom end of the supporting ring 201 at equal angles, and the pressing ring 204 and the supporting ring 201 clamp the filter membrane body 1, the filter plate 203 filters large particles of impurities through the filter holes 205, and the filter membrane body 1 can filter small particles of impurities, thereby improving the filtering effect, and a circulation space is formed between the filter plate 203, the pressing ring 204 and the filter membrane body 1, which is convenient for the circulation of filtered liquid and the accumulation of small particles of impurities filtered by the filter membrane body 1.

[0027] The clamping and fixing assembly 3 includes a bottom box 301 installed at an equal angle at the bottom end of the supporting ring 201, a vertical plate 302 is provided on one side of the bottom box 301, a clamping rod 303 is fixedly installed on the side of the vertical plate 302 close to the filter plate 203, and the clamping rod 303 is clamped into the inside of the clamping groove 206, a movable groove 304 is opened inside the bottom box 301, and a movable plate 305 is movably installed inside the movable groove 304, and a pull rod 306 is installed on the side of the movable plate 305 close to the vertical plate 302, one end of the pull rod 306 penetrates to the side of the bottom box 301 close to the vertical plate 302, and one end of the pull rod 306 is fixedly connected to the vertical plate 302, and the movable plate 305 is away from the vertical plate 302. A spring 307 is symmetrically installed on one side of the movable plate 305. Under the elastic force of the spring 307, the movable plate 305 pulls the vertical plate 302 toward the side of the supporting ring 201, so that the clamping rod 303 is clamped into the clamping groove 206 on the side wall of the supporting ring 201, and the supporting ring 201 and the filter plate 203 are clamped and fixed, which is convenient for disassembly and assembly, and convenient for the replacement of the filter membrane body 1 and the removal of small particles of impurities. A limited rotation groove 309 is provided inside the bottom box 301, and the limited rotation groove 309 is located above the movable groove 304. A rod groove 310 is provided inside the bottom box 301, and the inner diameter of the rod groove 310 is smaller than the inner diameter of the limited rotation groove 309, and the rod groove 310 is located above the movable groove 304. The two ends of the rod groove 310 respectively penetrate the two sides of the bottom box 301, the internal rotation installation of the limit rotation groove 309 is a limit rotation block 311, and the limit rotation block 311 is coaxially installed with a rotation rod 313, which is located inside the rod groove 310, and the end of the rotation rod 313 close to the vertical plate 302 is installed with a cam 312, and a horizontal plate 308 is provided below the cam 312, and the horizontal plate 308 is fixedly installed on the vertical plate 302, and a screw barrel 314 is installed on the side of the bottom box 301 away from the vertical plate 302, and the screw barrel 314 is connected to the rod groove 310, and a screw 315 is installed on the internal thread of the screw barrel 314, and the screw 315 is close to the limit rotation block 311. A plug rod 318 is installed at one end, and a slot 316 is provided inside the rotating rod 313. One end of the plug rod 318 is inserted into the inside of the slot 316. A sliding groove 317 is provided at an equal angle on the inner wall of the slot 316. A sliding block 319 is installed at an equal angle on the outer wall of the end of the plug rod 318. The sliding block 319 is slidably installed in the inside of the sliding groove 317. After the screw 315 is turned, the cam 312 is driven to rotate. When the cam 312 rotates to the point where it can no longer rotate, the cam 312 generates downward pressure on the cross plate 308, thereby improving the clamping stability of the support ring 201 and the pressure ring 204 on the filter membrane body 1, and improving the filtration working stability of the filter membrane body 1.

[0028] Working principle: When working, first place the filter membrane body 1 on the support ring 201, and then install the filter plate 203 above the filter membrane body 1, so that the pressure ring 204 at the bottom of the filter plate 203 and the support ring 201 clamp the filter membrane body 1. Since the filter plate 203 is evenly provided with filter holes 205, large particles of impurities can be filtered, while the filter membrane body 1 can filter small particles of impurities, thereby improving the filtering effect. A circulation space is formed between the filter plate 203, the pressure ring 204 and the filter membrane body 1, which is convenient for the circulation of the filtered liquid and the accumulation of small particles of impurities filtered by the filter membrane body 1.

[0029] During installation, the movable plate 305 in the bottom box 301 at the bottom end of the support ring 201 pulls the vertical plate 302 toward one side of the support ring 201 under the elastic force of the spring 307, so that the clamping rod 303 is clamped into the clamping groove 206 on the side wall of the support ring 201, thereby clamping and fixing the support ring 201 and the filter plate 203, which is convenient for disassembly and assembly, replacement of the filter membrane body 1 and removal of small particle impurities;

[0030] After installation, the screw rod 315 is turned to drive the insertion rod 318 to rotate, and the insertion rod 318 is slidably connected to the rotating rod 313 through the sliding block 319 and the sliding groove 317, so that the rotation of the screw rod 315 drives the cam 312 to rotate. When the cam 312 rotates to the point where it can no longer rotate, the cam 312 exerts downward pressure on the cross plate 308, thereby improving the clamping stability of the support ring 201 and the pressure ring 204 on the filter membrane body 1, thereby improving the filtration working stability of the filter membrane body 1.

Claims

1. A composite filtration membrane structure, comprising a filtration membrane body (1), characterized in that: An auxiliary filtering component (2) is provided on the outer side of the filtering membrane body (1); The auxiliary filtering assembly (2) comprises a supporting ring (201) arranged below the filtering membrane body (1), a cross supporting plate (202) being fixedly mounted on the inner side of the supporting ring (201), a filter plate (203) being arranged above the filtering membrane body (1), a pressing ring (204) being mounted at the bottom end of the filter plate (203), the supporting ring (201) and the pressing ring (204) being clamped together, filter holes (205) being evenly arranged on the filter plate (203), slots (206) being arranged at equal angles on the outer wall of the filter plate (203), and a clamping fixing assembly (3) being mounted at equal angles on the bottom end of the supporting ring (201).

2. A composite filtration membrane structure according to claim 1, characterized in that: The clamping and fixing assembly (3) comprises a bottom box (301) mounted at an equal angle on the bottom end of the support ring (201); a vertical plate (302) is provided on one side of the bottom box (301); a clamping rod (303) is fixedly mounted on one side of the vertical plate (302) close to the filter plate (203); and the clamping rod (303) is clamped into the interior of the clamping groove (206).

3. A composite filtration membrane structure according to claim 2, characterized in that: The bottom box (301) is provided with a movable groove (304) inside, and a movable plate (305) is movably installed inside the movable groove (304). A pull rod (306) is installed on the side of the movable plate (305) close to the vertical plate (302). One end of the pull rod (306) passes through the side of the bottom box (301) close to the vertical plate (302), and one end of the pull rod (306) is fixedly connected to the vertical plate (302). A spring (307) is symmetrically installed on the side of the movable plate (305) away from the vertical plate (302).

4. A composite filtration membrane structure according to claim 3, characterized in that: A limit rotation groove (309) is provided inside the bottom box (301), and the limit rotation groove (309) is located above the movable groove (304). A rod groove (310) is provided inside the bottom box (301), and the inner diameter of the rod groove (310) is smaller than the inner diameter of the limit rotation groove (309). The rod groove (310) is located above the movable groove (304). Two ends of the rod groove (310) respectively penetrate to two sides of the bottom box (301). A limit rotation block (311) is rotatably installed inside the limit rotation groove (309), and a rotation rod (313) is coaxially installed on the limit rotation block (311). The rotation rod (313) is located inside the rod groove (310), and a cam (312) is installed at one end of the rotation rod (313) close to the vertical plate (302). A horizontal plate (308) is provided below the cam (312), and the horizontal plate (308) is fixedly installed on the vertical plate (302).

5. A composite filtration membrane structure according to claim 4, characterized in that: A screw barrel (314) is installed on the side of the bottom box (301) away from the vertical plate (302), the screw barrel (314) is connected to the rod groove (310), a screw rod (315) is installed on the internal thread of the screw barrel (314), and an insertion rod (318) is installed on one end of the screw rod (315) close to the limit rotating block (311).

6. A composite filtration membrane structure according to claim 5, characterized in that: The rotating rod (313) is provided with a slot (316) inside, one end of the insertion rod (318) is inserted into the slot (316), a sliding groove (317) is provided on the inner wall of the slot (316) at an equal angle, a sliding block (319) is installed at an equal angle on the outer wall of the end of the insertion rod (318), and the sliding block (319) is slidably installed inside the sliding groove (317).

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