Ultrafiltration membrane structure with self-repairing function

Abstract

The invention relates to the technical field of ultrafiltration membranes, and discloses an ultrafiltration membrane structure with a self-repairing function, which solves the problem that the filtering performance is influenced when the ultrafiltration membrane is damaged due to the fact that the ultrafiltration membrane used by the existing water treatment equipment does not have the self-repairing function, and comprises an ultrafiltration membrane body, a mounting frame is fixedly mounted on the surface of the ultrafiltration membrane body, a plurality of piezoelectric film sensors are fixedly mounted in the middle of the ultrafiltration membrane body, a double-sided toothed rail is fixedly mounted on one side of the mounting frame, a movable frame sleeves the surface of the double-sided toothed rail, and a supporting frame is fixedly mounted in the middle of one side of the movable frame; a driving motor is installed on the upper portion of the supporting frame through an adjusting assembly in a transmission mode, a transmission assembly is arranged at the output end of the driving motor, a supporting arm is fixedly installed on the top of the moving frame through a supporting block, and a feeding box is arranged on the lower side of the supporting arm. The ultrafiltration membrane used by the water treatment equipment has a self-repairing function, and the situation that the filtration performance is influenced when the ultrafiltration membrane is damaged is avoided, so that the filtration effect is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of ultrafiltration membranes, and in particular relates to an ultrafiltration membrane structure with a self-repairing function. Background Art

[0002] Ultrafiltration membrane is a polymer membrane with a pore size range of 0.001 to 0.02 microns, and is a type of microporous filtration membrane. The working principle of the ultrafiltration membrane is that by applying appropriate pressure on one side of the membrane, the solvent in the solution and some low molecular weight solutes can penetrate the tiny pores of the ultrafiltration membrane and reach the other side of the membrane, while high molecular weight solutes or emulsified micelles are retained on one side of the membrane, thereby achieving the effect of filtration separation. The ultrafiltration membrane material is resistant to high temperatures, acids and alkalis, so it does not have high requirements for the quality of the influent water and shows a wide range of applicability. Ultrafiltration membrane technology not only performs well in the field of water treatment, but also has a wide range of applications in many fields such as pharmaceutical production and food processing. The ultrafiltration membrane used in existing water treatment equipment does not have a self-repairing function, which results in the ultrafiltration membrane itself being damaged and affecting the filtration performance, greatly reducing the filtration effect. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an ultrafiltration membrane structure with self-repair function, which effectively solves the problem that the ultrafiltration membrane used in the existing water treatment equipment in the above background technology does not have self-repair function, resulting in the ultrafiltration membrane itself being damaged and affecting the filtration performance.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultrafiltration membrane structure with self-repairing function, comprising an ultrafiltration membrane body, a mounting frame is fixedly installed on the surface of the ultrafiltration membrane body, a plurality of piezoelectric thin film sensors are fixedly installed in the middle of the ultrafiltration membrane body, a double-sided rack is fixedly installed on one side of the mounting frame, a moving frame is sleeved on the surface of the double-sided rack, a support frame is fixedly installed in the middle of one side of the moving frame, a driving motor is installed on the upper part of the support frame through an adjusting component, a transmission component is provided at the output end of the driving motor, a supporting arm is fixedly installed on the top of the moving frame through a supporting block, a feed box is provided on the lower side of the supporting arm, a nozzle is fixedly installed on the bottom of the feed box, a conveying hose is fixedly installed on one side of the feed box, and a connector is fixedly installed on one end of the conveying hose, the connector is connected to a suction pump on an external storage chemical repair agent box, a control panel is fixedly installed on one end of the mounting frame, the transmission component is transmission-connected to the feed box, and when the driving motor is running, power is output to the feed box through the transmission component, so that the feed box drives the nozzle to move to the damaged location of the ultrafiltration membrane body for repair.

[0005] Preferably, the adjustment component includes a driving cylinder, which is fixedly mounted on the top of the support frame. A positioning ring is fixedly mounted on the transmission end of the driving cylinder, and the interior of the positioning ring is fixedly connected to the surface of the driving motor. Two limit sliding sleeves are symmetrically fixedly mounted on the surface of the positioning ring, and limit sliding rods are inserted into the interiors of the two limit sliding sleeves, and the bottoms of the two limit sliding rods are fixedly connected to the upper side of the support frame.

[0006] Preferably, the transmission assembly includes a driving gear, which is fixedly mounted on the output end of the driving motor. A rectangular sliding sleeve is rotatably mounted on one side of the driving gear. A rectangular sliding rod is inserted into the interior of the rectangular sliding sleeve. Both ends of the rectangular sliding rod are fixedly connected to the support arm and the movable frame respectively.

[0007] Preferably, the lower part of the driving gear is meshed and connected with a driving gear, and the lower part of the driving gear is meshed and connected with a driven gear. One side of the driving gear and the driven gear is fixedly installed with a shaft rod, and the surfaces of the two shaft rods are rotatably connected to one side of the moving frame through a shaft sleeve, and one end of the two shaft rods is fixedly installed with a tooth column, and the two tooth columns are respectively meshed and connected with the upper and lower sides of the double-sided rack, and one end of the two tooth columns is rotatably installed with a positioning plate through a positioning shaft seat, and the ends of the two positioning plates away from each other are fixedly connected to the moving frame.

[0008] Preferably, a sliding block is fixedly mounted on an inner wall of one side of the movable frame, a first sliding groove is opened on one side of the double-sided rack rail, and the sliding block is slidably mounted inside the first sliding groove.

[0009] Preferably, a connecting frame is fixedly installed at one end of the top and the bottom of the movable frame, and plug rods are movably inserted at both ends of the two connecting frames. A clamping ball is fixedly installed at one end of the four plug rods, and springs are sleeved on the surfaces of the four plug rods. The two ends of the four springs are respectively fixedly connected to the connecting frame and the clamping ball, and a plurality of semicircular clamping grooves are provided on the surface of the double-sided rack, and the plurality of semicircular clamping grooves are adapted to the clamping balls.

[0010] Preferably, a transmission gear is provided above the driving gear, and the transmission gear is adapted to the driving gear. A rotating shaft is fixedly installed on one side of the transmission gear, and the surface of the rotating shaft is rotatably connected to one end of the support arm through a bearing. One end of the rotating shaft extends to the interior of the support arm and is fixedly installed with a threaded rod, and the end of the threaded rod away from the rotating shaft is rotatably connected to the inner wall of one end of the support arm.

[0011] Preferably, a threaded sleeve is threadedly connected to the surface of the threaded rod, a fixed head is fixedly installed at the lower part of the threaded sleeve, and the bottom end of the fixed head is fixedly connected to the top of the feed box.

[0012] Preferably, a limit block is fixedly installed on the top of the threaded sleeve, a limit groove is opened on the inner top of the support arm, the limit block is slidably installed inside the limit groove, a slide bar is fixedly installed on the lower side of one end of the support arm, a second slide groove is opened on one side of the top of the installation frame, and the slide bar is slidably installed inside the second slide groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When the ultrafiltration membrane body is partially damaged, the piezoelectric film sensor around the damage will transmit the signal to the control panel through the piezoelectric effect. After receiving the signal, the control panel will start the driving motor to drive the driving gear to rotate. When the driving gear rotates, it will drive the driven gear to rotate through the driving gear. When the driving gear and the driven gear rotate, they will drive the two shafts to rotate inside the two shaft sleeves. When the two shafts rotate, they will drive the two gear columns to rotate along the two positioning shaft seats. When the two gear columns rotate, they will drive the moving frame to move along the double-sided gear rail. When the moving frame moves, it will drive the slider to slide along the inside of the first slide groove, thereby improving the stability of the moving frame when it moves;

[0015] When the moving frame moves, the supporting arm will be driven to move through the supporting block. When the supporting arm moves, the nozzle will be driven to move to the corresponding position through the feeding box. When the supporting arm moves, the sliding bar will be driven to slide along the inside of the second sliding groove, thereby improving the stability of the supporting arm when moving;

[0016] When the moving frame moves, the four plug rods will be driven to move through the two connecting frames, and the four plug rods will drive the card ball to move when they move. When the card ball moves to the position of the corresponding semicircular card slot, the elastic force of the spring can push the card ball to be stuck in the corresponding semicircular card slot to perform a certain limit, thereby ensuring the stability of the moving frame; at the same time, since the card ball and the semicircular card slot are both circular structures, while ensuring a certain limit effect, the card ball can directly break away from the semicircular card slot during the translation process to release the limit;

[0017] (2) Then, while ensuring that the driving motor stops running, the control panel starts the driving cylinder to drive the positioning ring to move upward. When the positioning ring moves upward, it drives the two limit sliding sleeves to slide on the surfaces of the two limit sliding rods, thereby increasing the stability of the positioning ring when it moves upward. When the positioning ring moves upward, it drives the driving gear to move upward through the driving motor to mesh with the transmission gear. When the driving gear moves upward, it also drives the rectangular sliding sleeve to slide along the surface of the rectangular sliding rod, thereby increasing the stability of the driving gear when it moves and ensuring the stability of the driving gear when it rotates;

[0018] Then the control panel starts the driving motor, which drives the transmission gear to rotate through the driving gear. When the transmission gear rotates, it drives the shaft to rotate inside the bearing. When the shaft rotates, the threaded sleeve can be driven to move through the threaded rod. When the threaded sleeve moves, it drives the limit block to slide inside the limit groove, thereby improving the stability of the threaded sleeve when it moves. When the threaded sleeve moves, it drives the feed box and the nozzle to move to the exact damaged position through the fixed head. Finally, the control panel starts the external suction pump to draw the chemical repair agent in the material box into the feed box through the conveying hose, and the nozzle sprays the chemical repair agent to the damaged position of the ultrafiltration membrane body. The chemical repair agent can be quickly released and react chemically with the damaged area to form new chemical bonds, thereby repairing the damage.

[0019] (3) The ultrafiltration membrane used in the water treatment equipment has a self-repairing function to avoid affecting the filtering performance when the ultrafiltration membrane itself is damaged, thereby ensuring the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached picture:

[0022] Figure 1 The structure of the ultrafiltration membrane structure with self-repairing function of the present invention is schematically shown. Figure 1 ;

[0023] Figure 2 The structure of the ultrafiltration membrane structure with self-repairing function of the present invention is schematically shown. Figure 2 ;

[0024] Figure 3 The structure of the ultrafiltration membrane structure with self-repairing function of the present invention is schematically shown. Figure 3 ;

[0025] Figure 4 The structure of the ultrafiltration membrane structure with self-repairing function of the present invention is schematically shown. Figure 4 ;

[0026] Figure 5 This is a schematic diagram of the internal structure of the ultrafiltration membrane body of the present invention;

[0027] Figure 6 It is a schematic diagram of the side view structure of the movable frame of the present invention;

[0028] Figure 7 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0029] Figure 8 For the present invention Figure 2The enlarged structural diagram at B in the middle;

[0030] In the figure: 1, ultrafiltration membrane body; 2, mounting frame; 3, double-sided gear rail; 4, moving frame; 5, support frame; 6, driving motor; 7, support block; 8, support arm; 9, feed box; 10, nozzle; 11, conveying hose; 12, connector; 13, control panel; 14, driving cylinder; 15, positioning ring; 16, limit sliding sleeve; 17, limit sliding rod; 18, driving gear; 19, rectangular sliding sleeve; 20, rectangular sliding rod; 21, driving gear; 22, driven gear; 23. Shaft; 24. Bushing; 25. Gear column; 26. Positioning shaft seat; 27. Positioning plate; 28. Connecting frame; 29. ​​Insert rod; 30. Spring; 31. Card ball; 32. Transmission gear; 33. Rotating shaft; 34. Bearing; 35. Threaded rod; 36. Threaded sleeve; 37. Limit block; 38. Limit groove; 39. Fixed head; 40. Piezoelectric film sensor; 41. First slide groove; 42. Sliding block; 43. Sliding bar; 44. Second slide groove; 45. Semicircular card groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, by Figures 1 to 8 The present invention comprises an ultrafiltration membrane body 1, a mounting frame 2 is fixedly mounted on the surface of the ultrafiltration membrane body 1, a plurality of piezoelectric film sensors 40 are fixedly mounted in the middle of the ultrafiltration membrane body 1, a double-sided rack 3 is fixedly mounted on one side of the mounting frame 2, a moving frame 4 is sleeved on the surface of the double-sided rack 3, a support frame 5 is fixedly mounted in the middle of one side of the moving frame 4, a driving motor 6 is installed on the upper part of the support frame 5 through an adjusting component, a transmission component is provided at the output end of the driving motor 6, a supporting arm 8 is fixedly mounted on the top of the moving frame 4 through a supporting block 7, and the supporting arm 8 A feed box 9 is provided on the lower side, a nozzle 10 is fixedly installed on the bottom of the feed box 9, a delivery hose 11 is fixedly installed on one side of the feed box 9, and a connector 12 is fixedly installed on one end of the delivery hose 11, the connector 12 is connected to a suction pump on an external storage chemical repair agent box, a control panel 13 is fixedly installed on one end of the mounting frame 2, a transmission assembly is transmission-connected to the feed box 9, and when the drive motor 6 is running, the power is output to the feed box 9 through the transmission assembly, so that the feed box 9 drives the nozzle 10 to move to the damaged location of the ultrafiltration membrane body 1 for repair.

[0033] When the ultrafiltration membrane body 1 is partially damaged, the piezoelectric film sensor 40 around the damage will transmit the signal to the control panel 13 through the piezoelectric effect. After receiving the signal, the control panel 13 will start the drive motor 6 to drive the transmission component to operate. When the transmission component is in operation, it will drive the moving frame 4 to move along the double-sided rack 3. When the moving frame 4 moves, it will drive the support arm 8 to move through the support block 7. When the support arm 8 moves, it will drive the nozzle 10 to move to the corresponding position through the feed box 9; then, the control panel 13 starts the adjustment component to drive the drive motor 6 to move upward while ensuring that the drive motor 6 stops running, and then the control panel 13 starts the drive motor 6 to operate. When the drive motor 6 is running, it drives the feed box 9 and the nozzle 10 to move to the accurate damage position through the transmission component;

[0034] Finally, the control panel 13 starts the external suction pump to draw the chemical repair agent in the material box into the feed box 9 through the delivery hose 11, and the nozzle 10 sprays the chemical repair agent to the damaged position of the ultrafiltration membrane body 1. The chemical repair agent can be quickly released and react chemically with the damaged area to form new chemical bonds, thereby repairing the damage; the ultrafiltration membrane used in the water treatment equipment has a self-repair function, which avoids affecting the filtration performance when the ultrafiltration membrane itself is damaged, thereby ensuring the filtration effect.

[0035] Embodiment 2, on the basis of embodiment 1, the adjustment component includes a driving cylinder 14, the driving cylinder 14 is fixedly installed on the top of the support frame 5, a positioning ring 15 is fixedly installed on the transmission end of the driving cylinder 14, and the interior of the positioning ring 15 is fixedly connected to the surface of the driving motor 6, and two limit sliding sleeves 16 are symmetrically fixedly installed on the surface of the positioning ring 15, and the interiors of the two limit sliding sleeves 16 are both inserted with limit sliding rods 17, and the bottoms of the two limit sliding rods 17 are both fixedly connected to the upper side of the support frame 5.

[0036] When the driving motor 6 stops running, the control panel 13 will start the driving cylinder 14 to drive the positioning ring 15 to move upward. When the positioning ring 15 moves upward, it drives the two limiting sleeves 16 to slide on the surfaces of the two limiting slide rods 17, thereby increasing the stability of the positioning ring 15 when it moves. When the positioning ring 15 moves upward, it will drive the driving gear 18 to move upward through the driving motor 6 until it is meshed with the transmission gear 32.

[0037] Embodiment 3, on the basis of embodiment 2, the transmission assembly includes a driving gear 18, the driving gear 18 is fixedly mounted on the output end of the driving motor 6, a rectangular sliding sleeve 19 is rotatably mounted on one side of the driving gear 18, a rectangular sliding rod 20 is inserted inside the rectangular sliding sleeve 19, and both ends of the rectangular sliding rod 20 are fixedly connected to the support arm 8 and the moving frame 4 respectively;

[0038] When the driving gear 18 moves upward, it also drives the rectangular sliding sleeve 19 to slide along the surface of the rectangular sliding rod 20, thereby increasing the stability of the driving gear 18 when it moves and ensuring the stability of the driving gear 18 when it rotates;

[0039] The lower part of the driving gear 18 is meshedly connected with a driving gear 21, and the lower part of the driving gear 21 is meshedly connected with a driven gear 22. A shaft rod 23 is fixedly installed on one side of the driving gear 21 and the driven gear 22. The surfaces of the two shaft rods 23 are rotatably connected to one side of the moving frame 4 through a shaft sleeve 24. One end of the two shaft rods 23 is fixedly installed with a tooth column 25. The two tooth columns 25 are respectively meshed and connected with the upper and lower sides of the double-sided rack 3. One end of the two tooth columns 25 is rotatably installed with a positioning plate 27 through a positioning shaft seat 26. The ends of the two positioning plates 27 that are away from each other are fixedly connected to the moving frame 4; a slider 42 is fixedly installed on the inner wall of one side of the moving frame 4, and a first slide groove 41 is opened on one side of the double-sided rack 3. The slider 42 is slidably installed inside the first slide groove 41;

[0040] When the driving motor 6 is running, it will drive the driving gear 18 to rotate. When the driving gear 18 rotates, it will drive the driven gear 22 to rotate through the driving gear 21. When the driving gear 21 and the driven gear 22 rotate, they will drive the two shaft rods 23 to rotate inside the two shaft sleeves 24. When the two shaft rods 23 rotate, they will drive the two gear columns 25 to rotate along the two positioning shaft seats 26. When the two gear columns 25 rotate, they will drive the moving frame 4 to move along the double-sided rack 3. When the moving frame 4 moves, it will drive the slider 42 to slide along the inside of the first slide groove 41, thereby improving the stability of the moving frame 4 when it moves;

[0041] A connecting frame 28 is fixedly installed at one end of the top and the bottom of the moving frame 4, and a plug rod 29 is movably inserted at both ends of the two connecting frames 28. A card ball 31 is fixedly installed at one end of the four plug rods 29. Springs 30 are sleeved on the surfaces of the four plug rods 29. Both ends of the four springs 30 are fixedly connected to the connecting frame 28 and the card ball 31 respectively. A plurality of semicircular card grooves 45 are opened on the surface of the double-sided rack 3, and the plurality of semicircular card grooves 45 are adapted to the card ball 31.

[0042] When the moving frame 4 moves, the four plug rods 29 will be driven to move through the two connecting frames 28. When the four plug rods 29 move, the locking ball 31 will be driven to move. When the locking ball 31 moves to the position of the corresponding semicircular slot 45, the elastic force of the spring 30 can push the locking ball 31 to be locked into the corresponding semicircular slot 45 to perform a certain limiting effect, thereby ensuring the stability of the moving frame 4; at the same time, since the locking ball 31 and the semicircular slot 45 are both circular structures, while ensuring a certain limiting effect, the locking ball 31 can directly detach from the semicircular slot 45 during the translation process to release the limit.

[0043] Embodiment 4, on the basis of embodiment 3, a transmission gear 32 is provided above the driving gear 18, the transmission gear 32 is adapted to the driving gear 18, a rotating shaft 33 is fixedly installed on one side of the transmission gear 32, the surface of the rotating shaft 33 is rotatably connected to one end of the support arm 8 through a bearing 34, one end of the rotating shaft 33 extends to the inside of the support arm 8 and is fixedly installed with a threaded rod 35, the end of the threaded rod 35 away from the rotating shaft 33 is rotatably connected to the inner wall of one end of the support arm 8; a threaded sleeve 36 is threadedly connected to the surface of the threaded sleeve 35, a fixed head 39 is fixedly installed at the lower part of the threaded sleeve 36, and the bottom end of the fixed head 39 is fixedly connected to the top of the feed box 9;

[0044] The control panel 13 starts the driving motor 6 to operate. When the driving motor 6 operates, the driving gear 18 drives the transmission gear 32 to rotate. When the transmission gear 32 rotates, it drives the rotating shaft 33 to rotate inside the bearing 34. When the rotating shaft 33 rotates, it can drive the threaded sleeve 36 to move through the threaded rod 35. When the threaded sleeve 36 moves, it drives the feed box 9 and the nozzle 10 to move to the accurate damage position through the fixed head 39.

[0045] A limit block 37 is fixedly installed on the top of the threaded sleeve 36, a limit groove 38 is provided on the inner top of the support arm 8, the limit block 37 is slidably installed inside the limit groove 38, a slide bar 43 is fixedly installed on the lower side of one end of the support arm 8, a second slide groove 44 is provided on one side of the top of the installation frame 2, and the slide bar 43 is slidably installed inside the second slide groove 44;

[0046] When the threaded sleeve 36 moves, it will drive the limit block 37 to slide inside the limit groove 38, thereby improving the stability of the threaded sleeve 36 when it moves; when the moving frame 4 moves, it will drive the support arm 8 to move through the support block 7, and when the support arm 8 moves, it will drive the nozzle 10 to move to the corresponding position through the feed box 9, and when the support arm 8 moves, it will drive the slide bar 43 to slide along the inside of the second slide groove 44, thereby improving the stability of the support arm 8 when it moves.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] 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. An ultrafiltration membrane structure with self-repairing function, comprising an ultrafiltration membrane body (1), characterized in that: The surface of the ultrafiltration membrane body (1) is fixedly mounted with a mounting frame (2), the middle of the ultrafiltration membrane body (1) is fixedly mounted with a plurality of piezoelectric thin film sensors (40), one side of the mounting frame (2) is fixedly mounted with a double-sided rack (3), the surface of the double-sided rack (3) is sleeved with a moving frame (4), the middle of one side of the moving frame (4) is fixedly mounted with a support frame (5), the upper part of the support frame (5) is driven and mounted with a driving motor (6) through an adjusting component, the output end of the driving motor (6) is provided with a transmission component, the top of the moving frame (4) is fixedly mounted with a supporting arm (8) through a supporting block (7), the lower side of the supporting arm (8) is provided with A feed box (9) is provided, a nozzle (10) is fixedly installed at the bottom of the feed box (9), a delivery hose (11) is fixedly installed on one side of the feed box (9), and a connector (12) is fixedly installed at one end of the delivery hose (11), the connector (12) is connected to a suction pump on an external storage chemical repair agent box, a control panel (13) is fixedly installed at one end of the installation frame (2), a transmission component is transmission-connected to the feed box (9), and when the drive motor (6) is running, power is output to the feed box (9) through the transmission component, so that the feed box (9) drives the nozzle (10) to move to the location where the ultrafiltration membrane body (1) is damaged for repair.

2. The ultrafiltration membrane structure with self-repairing function according to claim 1, characterized in that: The adjustment component comprises a driving cylinder (14), the driving cylinder (14) is fixedly mounted on the top of the support frame (5), a positioning ring (15) is fixedly mounted on the transmission end of the driving cylinder (14), and the interior of the positioning ring (15) is fixedly connected to the surface of the driving motor (6), two limiting sliding sleeves (16) are symmetrically fixedly mounted on the surface of the positioning ring (15), and limiting sliding rods (17) are inserted into the interiors of the two limiting sliding sleeves (16), and the bottoms of the two limiting sliding rods (17) are fixedly connected to the upper side of the support frame (5).

3. The ultrafiltration membrane structure with self-repairing function according to claim 1, characterized in that: The transmission assembly comprises a driving gear (18), the driving gear (18) being fixedly mounted on the output end of the driving motor (6), a rectangular sliding sleeve (19) being rotatably mounted on one side of the driving gear (18), a rectangular sliding rod (20) being inserted into the interior of the rectangular sliding sleeve (19), and two ends of the rectangular sliding rod (20) being fixedly connected to the supporting arm (8) and the moving frame (4) respectively.

4. The ultrafiltration membrane structure with self-repairing function according to claim 3, characterized in that: The lower part of the driving gear (18) is meshedly connected with a driving gear (21), and the lower part of the driving gear (21) is meshedly connected with a driven gear (22). One side of the driving gear (21) and the driven gear (22) is fixedly mounted with a shaft rod (23). The surfaces of the two shaft rods (23) are rotatably connected to one side of the moving frame (4) through a shaft sleeve (24). One end of the two shaft rods (23) is fixedly mounted with a tooth column (25). The two tooth columns (25) are respectively meshedly connected to the upper and lower sides of the double-sided rack (3). One end of the two tooth columns (25) is rotatably mounted with a positioning plate (27) through a positioning shaft seat (26). The ends of the two positioning plates (27) that are away from each other are fixedly connected to the moving frame (4).

5. The ultrafiltration membrane structure with self-repairing function according to claim 4, characterized in that: A slider (42) is fixedly mounted on the inner wall of one side of the moving frame (4), a first slide groove (41) is opened on one side of the double-sided rack rail (3), and the slider (42) is slidably mounted inside the first slide groove (41).

6. The ultrafiltration membrane structure with self-repairing function according to claim 4, characterized in that: A connecting frame (28) is fixedly mounted on one end of the top and bottom of the movable frame (4); plug rods (29) are movably inserted at both ends of the two connecting frames (28); a locking ball (31) is fixedly mounted on one end of the four plug rods (29); springs (30) are sleeved on the surfaces of the four plug rods (29); the two ends of the four springs (30) are respectively fixedly connected to the connecting frame (28) and the locking ball (31); a plurality of semicircular locking grooves (45) are opened on the surface of the double-sided rack (3); and the plurality of semicircular locking grooves (45) are matched with the locking ball (31).

7. The ultrafiltration membrane structure with self-repairing function according to claim 3, characterized in that: A transmission gear (32) is arranged above the driving gear (18), and the transmission gear (32) is adapted to the driving gear (18). A rotating shaft (33) is fixedly mounted on one side of the transmission gear (32), and a surface of the rotating shaft (33) is rotatably connected to one end of the support arm (8) via a bearing (34). One end of the rotating shaft (33) extends into the interior of the support arm (8) and is fixedly mounted with a threaded rod (35), and an end of the threaded rod (35) away from the rotating shaft (33) is rotatably connected to an inner wall of one end of the support arm (8).

8. The ultrafiltration membrane structure with self-repairing function according to claim 7, characterized in that: The surface of the threaded rod (35) is threadedly connected with a threaded sleeve (36), the lower part of the threaded sleeve (36) is fixedly mounted with a fixed head (39), and the bottom end of the fixed head (39) is fixedly connected to the top of the feed box (9).

9. The ultrafiltration membrane structure with self-repairing function according to claim 8, characterized in that: A limit block (37) is fixedly installed on the top of the threaded sleeve (36), a limit groove (38) is provided on the inner top of the support arm (8), the limit block (37) is slidably installed inside the limit groove (38), a slide bar (43) is fixedly installed on the lower side of one end of the support arm (8), a second slide groove (44) is provided on one side of the top of the installation frame (2), and the slide bar (43) is slidably installed inside the second slide groove (44).

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