Device suitable for assisting electronic slurry filtration and electronic slurry filtration device

Abstract

The utility model discloses a device and an electronic slurry filtering device suitable for assisting electronic slurry filtering, and relates to the field of an auxiliary filtering device and a filtering device. The device for assisting electronic slurry filtering comprises a transmission device and a scraper mechanism, wherein the scraper mechanism is connected to the transmission device, and the transmission device can drive the scraper mechanism to perform circular motion; the scraper mechanism comprises a plurality of scraper blades, each of which has an angle θ with the vertical direction, and 10°≤θ≤20°, and the scraper blades can rotate, and when the rotation angle is 0°, the tip of the scraper blade is in a horizontal position. The utility model sets the device for assisting electronic slurry filtering as a filter press structure, and sets the installation direction of the scraper blade in an inclined manner, limits the angle between the tip of the scraper blade and the horizontal direction, so as to achieve the purpose of the scraper blade being flexible and adaptive to the mesh surface, and at the same time, the scraper plane cooperates with the filter screen to scrape out large particles of impurities, which is not easy to be blocked, thereby improving the filtering efficiency.

Description

Technical Field

[0001] The utility model relates to the field of an auxiliary filtering device and a filtering device, in particular to a device suitable for assisting electronic slurry filtering and an electronic slurry filtering device. Background Art

[0002] The current design of electronic slurry filtration devices mainly includes two types: suction filtration and pressure filtration, which basically meet the needs of electronic slurry filtration. However, most filtration devices have design defects and have great limitations in actual use. Since electronic slurry is a precision electronic material, it is sensitive to environmental changes and component changes. Therefore, corresponding process control and environmental control are required during the production and preparation process. Based on the requirements of environmental and component control, the filtration device of electronic slurry needs to keep the slurry in a stable environmental state, and at the same time, excessive human contact and operation should be avoided to cause the slurry to be contaminated.

[0003] The existing suction filtration device uses air pressure or negative pressure to make the slurry pass through the filter screen, thereby filtering the slurry. The problem with this type of device is that the pressure environment of the slurry changes, which easily causes the slurry solvent to evaporate rapidly, resulting in changes in slurry properties. In addition, during filtration, large particles of impurities easily gather on the screen surface, causing blockage and reduced filtration efficiency.

[0004] The filter press type usually uses a rubber scraper to force the slurry through the filter screen under the pressure of the scraper, thereby filtering the slurry. However, the current problem is that the filter screen usually has a downward conical depression due to the influence of the slurry's own weight, which does not match the scraper plane, resulting in low filtration efficiency or the need for manual auxiliary material spreading and filtration, which may ultimately affect the slurry performance.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The purpose of the utility model is to provide a device suitable for assisting electronic slurry filtration and an electronic slurry filtration device. The device for assisting electronic slurry filtration is a filter press structure, and the installation direction of the scraper blade is inclined to limit the angle of deviation from the vertical direction, so as to solve the problem in the prior art that the scraper plane and the filter screen are easily blocked and the filtration efficiency is low.

[0007] The utility model embodiment is realized by the following technical scheme: The utility model embodiment provides a device suitable for assisting electronic slurry filtration, including a transmission device and a scraper mechanism, the scraper mechanism is connected to the transmission device, and the transmission device can drive the scraper mechanism to do circular motion;

[0008] The scraper mechanism includes a plurality of scraper blades, each of which has an angle θ with the vertical direction, and 10°≤θ≤20°.

[0009] The scraper blade can rotate;

[0010] When the rotation angle is 0°, the tip of the scraper blade is in a horizontal position;

[0011] When the rotation angle is greater than 0° and less than 90°, there is an angle between the tip of the scraper blade and the horizontal plane, and the angle is greater than 2° and less than 15°.

[0012] Preferably, the transmission device comprises a motor, a transmission rod and a connecting rod sleeve, the connecting rod sleeve is connected to the motor, the connecting rod sleeve is a hollow structure, and a plurality of through holes are opened on the sleeve wall of the connecting rod sleeve;

[0013] One end of the transmission rod is arranged in the connecting rod sleeve, and the other end is connected to the scraper mechanism;

[0014] The transmission rod is connected to the motor through a spring. The transmission rod is radially provided with a plurality of outwardly protruding engaging pieces. A single engaging piece is installed in a single through hole. The engaging piece can move up and down in the through hole to drive the spring to stretch or contract.

[0015] Preferably, two through holes are provided, the two through holes are arranged opposite to each other and are axisymmetric in the vertical direction, and two engaging members are provided, the two engaging members are arranged opposite to each other and are axisymmetric in the vertical direction.

[0016] Preferably, three scraper blades are provided, the three scraper blades are rotationally symmetrical, and the angles between two adjacent scraper blades are equal.

[0017] Preferably, the rotationally symmetric axis coincides with the axial center line of the transmission rod.

[0018] In order to achieve the above-mentioned purpose, an embodiment of the utility model further provides an electronic slurry filtering device, comprising the above-mentioned device for assisting electronic slurry filtering and a filter.

[0019] Preferably, the filter comprises a sleeve and a screen, and the screen seal is arranged at the bottom of the sleeve.

[0020] Preferably, the ends of the screen are connected to the exterior of the sleeve.

[0021] Preferably, a collar mechanism is sleeved on the outer wall of the sleeve, and the collar mechanism is arranged outside the end of the screen.

[0022] Preferably, a buckle is provided on the outer wall of the sleeve, and the collar mechanism comprises a fixing collar and a tightening collar;

[0023] The fixed collar fits the screen;

[0024] The fastening collar is provided with a positioning pin and a movable screw rod for inserting into the operating table; the fastening collar is arranged outside the fixing collar; and the buckle is engaged and fixed with the movable screw rod.

[0025] Compared with the prior art, the embodiments of the present invention have the following advantages and beneficial effects:

[0026] 1. The device for assisting electronic slurry filtration provided by the embodiment of the utility model, by setting the device for assisting electronic slurry filtration to a filter press type structure, limiting the angle of the scraper blade with the vertical direction to between 10° and 20°, and setting the scraper blade to be rotatable, with a rotation range of between 2° and 15°, can fully utilize the edge of the scraper blade to form contact pressure with the screen to complete the extrusion filtration of the slurry, and at the same time scrape out large particles of impurities to avoid clogging of the screen, so as to achieve the purpose of improving the filtration efficiency, and at the same time the setting of the rotating structure can ensure the uniformity and thoroughness of the filtration.

[0027] 2. The transmission device of the embodiment of the utility model can drive the scraper mechanism not only to perform rotational motion, but also to perform vertical motion under the cooperation of its own gravity and spring elastic force through strict structural setting. This structure uses the deadweight of the transmission rod to maintain the stability of the contact pressure between the scraper module and the mesh surface. After the power is output by the motor, the transmission rod is driven to operate through the connecting rod sleeve to solve the problem in the prior art that the screen is deformed by the gravity of the scraper mechanism during the filtration process, resulting in uneven dispersion of the contact pressure between the scraper mechanism and the screen, and obvious differences in the degree of deformation of the screen surface.

[0028] 3. The electronic slurry filtering device provided by the embodiment of the utility model has a simple structure. Not only is the structure stable, but the screen can be disassembled for easy replacement.

[0029] In general, the device for assisting electronic slurry filtration provided by the embodiments of the utility model is configured as a filter press type structure, and the installation direction of the scraper blade is tilted to limit the angle of deviation from the vertical direction, so as to achieve the purpose of improving the filtration efficiency by cooperating between the scraper plane and the filter screen to scrape out large particles of impurities without clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a filtering device and an auxiliary filtering device provided in an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of the transmission structure provided by an embodiment of the utility model;

[0033] Figure 3 A schematic diagram of the scraper mechanism structure provided in an embodiment of the utility model;

[0034] Figure 4 This is a schematic diagram of the connection structure between the scraper blade and the transmission rod in the embodiment of the utility model;

[0035] Figure 5 A schematic diagram of the structure of the collar mechanism provided in an embodiment of the utility model;

[0036] Figure 6 A schematic diagram of the fastening ring structure provided in an embodiment of the utility model.

[0037] Marks and corresponding parts names in the attached drawings:

[0038] 1-scraper blade, 2-motor, 3-transmission rod, 4-connecting rod sleeve, 5-through hole, 6-clamping piece, 7-spring, 8-sleeve, 9-screen, 10-ring, 11-buckle, 12-fixing ring, 13-fastening ring, 14-locating pin, 15-movable screw. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present utility model, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] Example

[0044] like Figure 1 and Figure 4As shown, the utility model provides a device suitable for assisting electronic slurry filtration, including a transmission device and a scraper mechanism, the scraper mechanism is connected to the transmission device, and the transmission device can drive the scraper mechanism to do circular motion to ensure more effective filtering operation; the scraper mechanism includes a plurality of scraper blades 1, each scraper blade 1 has an angle of θ with the vertical direction, and 10°≤θ≤20°, the scraper blade 1 can rotate, when the rotation angle is 0°, the tip of the scraper blade 1 is in a horizontal position; when the rotation angle is greater than 0° and less than 90°, the tip of the scraper blade 1 has an angle with the horizontal plane, and the angle is greater than 2° and less than 15°. This structure uses the scraper blade 1 to help remove or separate unwanted impurities or solid particles during the electronic slurry filtration process to prevent clogging and improve filtration efficiency. It should be noted that the connection between the scraper mechanism and the transmission device can be an integral setting or a detachable connection, as long as it can assist in filtration and scrape out large particles of impurities, and there is no restriction here. For ease of understanding, the embodiment of the utility model is connected in a detachable manner. This structure can facilitate the replacement of parts, cleaning and maintenance. The structure for limiting the rotation angle can be a circular hole opened at the center of the scraper blade 1 to leave a missing corner to prevent rotation, matching the reserved screw at the bottom of the transmission rod 3, and using a nut to fix the structure after installation. There is no restriction here, and it can be implemented using the existing structure, and no excessive description is given here. By way of example, the reserved screw at the bottom of the transmission rod 3 passes through the circular hole, a groove is provided on the inner wall of the circular hole, and a protrusion is provided on the reserved screw. When the circular hole rotates around the reserved screw, the protrusion can only move back and forth within the range of the groove. In this way, the rotation angle of the scraper blade 1 can be limited by limiting the protrusion by the groove.

[0045] The transmission device can be connected to the motor 2 through a transmission rod 3 to achieve rotation, so as to drive the blade mechanism to make circular motion. In the existing filter press structure, the mesh surface is deformed due to gravity during the filtration process, resulting in uneven dispersion of the contact pressure between the scraper module and the mesh surface, and there are obvious differences with the degree of deformation of the mesh surface. In order to solve this problem, the embodiment of the utility model designs the structure of the transmission device. Specifically, Figure 2As shown, the transmission device includes a motor 2, a transmission rod 3 and a connecting rod sleeve 4. The connecting rod sleeve 4 is connected to the motor 2. The connecting rod sleeve 4 is a hollow structure, and a plurality of through holes 5 are provided on the sleeve wall of the connecting rod sleeve 4. One end of the transmission rod 3 is arranged in the connecting rod sleeve 4, and the other end is connected to the scraper mechanism. The transmission rod 3 is connected to the motor 2 through a spring 7. The transmission rod 3 is radially provided with a plurality of outwardly protruding engaging members 6. A single engaging member 6 is installed in a single through hole 5. The engaging member 6 can move up and down in the through hole 5, driving the spring 7 to stretch or contract. Under the action of the spring 7 and the deadweight of the transmission rod 3 and the scraper blade 1, the pressure applied by the transmission rod 3 to the scraper blade 1 is basically constant. Therefore, when the screen is deformed, the angle between the blade tip of the scraper blade 1 and the horizontal direction changes accordingly, achieving an adaptive effect.

[0046] The motor 2 is used to provide power to drive the entire device. The connecting rod sleeve 4 is connected to one end of the motor 2 to transfer the power of the motor 2 to the scraper mechanism. The spring 7 is used to connect the transmission rod 3 and the motor 2, and drives the transmission rod 3 to move in the vertical direction by stretching or contracting. When in use, the motor 2 is turned on, the motor 2 starts to work, and the connecting rod sleeve 4 starts to rotate. At this time, the hole wall of the through hole 5 will apply force to the engaging member 6, driving the transmission rod 3 to make a circular motion. The scraper mechanism under the transmission rod 3 will squeeze the screen 9 during the rotational motion, causing the screen 9 to be concave and deformed. At this time, the transmission rod 3 and the scraper mechanism can be driven to move in the vertical direction or downward under the action of the spring 7 to balance the pressure of the scraper mechanism on the screen 9 during the rotation process, so as to achieve the effect of balanced pressure and stable filtering. At the same time, the inclined structure of the scraper blade 1 can repeatedly scrape and loosen the large particles fixed on the screen 9, which can prevent the screen 9 from being blocked while having a stirring effect, thereby improving the efficiency of filtration. It should be noted that the relative sizes of the through hole 5 and the engaging member 6 here can be set according to actual conditions, and there is no restriction here, as long as the engaging member 6 can be set in the through hole 5 and can move in the vertical direction in the through hole 5. Of course, the larger the through hole 5 relative to the engaging member 6, the larger the range of vertical movement of the engaging member 6, and at this time the scraper mechanism has a greater adjustment force in the vertical direction.

[0047] In order to improve the stability of the transmission device, two through holes 5 are provided, and the two through holes 5 are arranged relative to each other and are axisymmetric in the vertical direction. Two engaging parts 6 are provided, and the two engaging parts 6 are arranged relative to each other and are axisymmetric in the vertical direction. This axisymmetric layout helps to maintain the balance and stability of the transmission device, ensures that the transmission rod 3 maintains uniform force and movement during the movement, helps to reduce imbalance and vibration, and thus improves the reliability and performance of the device. The symmetrical arrangement of the through holes 5 and the engaging parts 6 can also ensure that the force applied to the transmission device during the movement is evenly distributed, which can improve the life and operating efficiency of the equipment. Of course, in other embodiments, the through holes 5 and the engaging parts 6 are not limited to being arranged in two, and can be arranged in one, three or more, and do not necessarily have to be arranged symmetrically or horizontally, as long as the functions of supporting stability, up and down mobility, and rotational drivability can be achieved.

[0048] In order to ensure the uniformity of the scraper blade 1 squeezing and stirring the screen 9, Figure 3 As shown. Three scraper blades 1 may be provided, and the three scraper blades 1 are rotationally symmetrical, and the angles between two adjacent scraper blades 1 are equal. This structure helps to ensure uniform and stable movement of the scraper mechanism to provide a consistent scraping effect during the electronic slurry filtering process. The rotationally symmetrical structure can cause the scraper blade 1 to rotate around the central axis, which helps to evenly distribute the scraping force and ensure uniform treatment of the electronic slurry. The equal angles between adjacent scraper blades 1 further ensure uniform scraping operation and prevent uneven scraping or filtering. It should be noted that the number of scraper blades 1 is not limited here, which means that in other embodiments, the number of scraper blades 1 can be limited according to actual needs, and 4, 5, etc. can be set, as long as sufficient extrusion and scraping effects can be achieved. Similarly, in other embodiments, the angle between adjacent scraper blades 1 can also be designed according to actual needs. Back to the embodiment of the utility model, preferably, the rotationally symmetrical axis of symmetry coincides with the axial center line of the transmission rod 3. This structure further ensures that the rotational movement of the scraper blade 1 is concentric with the movement of the transmission rod 3, thereby maintaining uniform rotation of the scraper blade 1, that is, the rotational movement of the scraper blade 1 is closely coordinated with the movement of the transmission device, ensuring uniform processing and filtration of the electronic slurry. This concentric structure can improve the accuracy and efficiency of the device, making it more suitable for electronic slurry filtration applications that require a high degree of control.

[0049] In another embodiment of the utility model, an electronic slurry filtering device is also provided, including the above-mentioned auxiliary electronic slurry filtering device and a filter, which can be used for accurate filtering of electronic slurry. Specifically, the filter material of the filter prevents unnecessary particles and impurities from passing through, and only allows slurry that meets the size to pass through. This structure can effectively remove unnecessary impurities and improve the quality of electronic slurry. It is suitable for applications that require highly pure electronic slurry, such as in electronic manufacturing and semiconductor industries. The synergistic effect of the filter and the auxiliary device helps to achieve efficient and controllable electronic slurry filtering.

[0050] Further, the filter includes a sleeve 8 and a screen 9, and the screen 9 is sealed and arranged at the bottom of the sleeve 8. When in use, the electronic slurry flows into the upper part of the sleeve 8, and the screen 9 is composed of fine mesh or sieve holes, which can prevent large-sized solid particles from passing through, while allowing slurry smaller than the mesh size to pass through. The electronic slurry passes through the screen 9, and the large-sized solid particles therein are blocked on the screen 9, while the slurry smaller than the mesh size passes through the screen 9 and enters the lower part of the sleeve 8. The screen 9 is sealed and arranged at the bottom of the sleeve 8 to ensure that the filtered part can only pass through the screen 9 and cannot bypass the screen 9 to enter the lower part. The slurry smaller than the mesh size flows out of the bottom of the filter and will enter the electronic slurry collection device. This structure can effectively separate large-sized solid particles while maintaining the purity of the slurry. The sleeve 8 and screen 9 of the filter provide physical barriers to prevent large-sized solid particles from passing through, and the sealing setting can ensure that the slurry flowing through the screen 9 is filtered. Then, the filtered electronic slurry is sent to the electronic slurry collection device for further processing.

[0051] It should be noted that electronic slurry is a composite of inorganic powder materials and organic liquid materials, similar to toothpaste or shampoo paste, and filtering is mainly to remove larger particles. Of course, the embodiment of the utility model can be applied to the filtration of all slurry, paste, and liquid substances, and the mechanism is the same as that of electronic slurry.

[0052] As a preferred embodiment of the utility model, the end of the screen 9 can be connected to the outside of the sleeve 8, which can make it easier to install, replace or maintain the screen 9. Preferably, a collar 10 is sleeved on the outer wall of the sleeve 8, and the collar 10 is arranged on the outer side of the end of the screen 9. This structure has the function of stabilizing and fixing the screen 9, ensuring that the screen 9 can be firmly connected to the sleeve 8 and preventing the screen 9 from accidentally loosening or falling off. The collar 10 is an annular structure located on the outer wall of the sleeve 8, and the end of the screen 9 can be safely clamped or connected to the collar 10, which can improve the stability and reliability of the filter and ensure that the screen 9 effectively performs its filtering function. Of course, in other embodiments, an appropriate interface can be directly provided at the end of the screen 9 so as to connect the screen 9 to the outside of the sleeve 8, including a connecting edge, a clamping device or other designs, so that the screen 9 can be fastened to the sleeve 8. The outside of the sleeve 8 may also be provided with a structure that is compatible with the end connection of the screen 9 to accommodate the screen 9 and ensure its firm fixation, including grooves, clamps, bolts, locating pins or other mechanical connection points, which are not limited here and can be set according to actual operating conditions. In the embodiment of the utility model, the collar 10 and the sleeve 8 are detachably connected, so that the collar 10 and the screen 9 can be easily removed when needed, which is very convenient for maintenance, cleaning, replacement of the screen 9 or other maintenance operations, such as threads, buckles, clamps or other mechanical connection methods, so as to quickly install and remove the collar 10 and the screen 9, making maintenance and replacement of parts more efficient and reducing downtime and maintenance costs.

[0053] For example, Figure 5 and Figure 6 As shown, a buckle 11 is provided on the outer wall of the sleeve 8, and the collar mechanism 10 includes a fixed collar 12 and a fastening collar 13; the fixed collar 12 is fitted with the screen 9; the fastening collar 13 is provided with a positioning pin 14 and a movable screw 15 for inserting into the operating table, the fastening collar 13 is arranged on the outside of the fixed collar 12, and the buckle 11 is fastened with the movable screw 15. It should be noted that the fixed collar 12 is used to fix the screen 9; the fastening collar 8 is limitedly engaged with the operating table, which plays a limiting role on the sleeve 8, and can prevent the screen 9 and the fixed collar 12 from falling off during operation. The movable screw 15 can rotate around the connection point to achieve precise engagement with the buckle 11. The rotating structure here can be realized by adopting the existing hinged structure, and the movable screw is installed on the rotating pin on the fastening collar 13, which is not limited here.

[0054] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model.

Claims

1. A device for assisting electronic slurry filtration, comprising a transmission device and a scraper mechanism, characterized in that: The scraper mechanism is connected to the transmission device, and the transmission device can drive the scraper mechanism to perform circular motion; The scraper mechanism comprises a plurality of scraper blades (1), each of the scraper blades (1) having an angle θ with the vertical direction, and 10°≤θ≤20°, and the scraper blades (1) are rotatable; When the rotation angle is 0°, the tip of the scraper blade is in a horizontal position; When the rotation angle is greater than 0° and less than 90°, there is an angle between the tip of the scraper blade and the horizontal plane, and the angle is greater than 2° and less than 15°.

2. A device for assisting electronic slurry filtration according to claim 1, characterized in that: The transmission device comprises a motor (2), a transmission rod (3) and a connecting rod sleeve (4); the connecting rod sleeve (4) is connected to the motor (2); the connecting rod sleeve (4) is a hollow structure; a plurality of through holes (5) are provided on the sleeve wall of the connecting rod sleeve (4); One end of the transmission rod (3) is arranged in the connecting rod sleeve (4), and the other end is connected to the scraper mechanism; The transmission rod (3) is connected to the motor (2) via a spring (7). The transmission rod (3) is radially provided with a plurality of engaging members (6) protruding outwards. A single engaging member (6) is installed in a single through hole (5). The engaging member (6) can move up and down in the through hole (5) to drive the spring (7) to stretch or contract.

3. A device for assisting electronic slurry filtration according to claim 2, characterized in that: There are two through holes (5), which are arranged opposite to each other and are axially symmetrical in the vertical direction; there are two engaging members (6), which are arranged opposite to each other and are axially symmetrical in the vertical direction.

4. The device for assisting electronic slurry filtration according to claim 2, characterized in that: Three scraper blades (1) are provided, the three scraper blades (1) are rotationally symmetrical, and the angles between two adjacent scraper blades (1) are equal.

5. The device for assisting electronic slurry filtration according to claim 4, characterized in that: The rotationally symmetrical axis of symmetry coincides with the axial center line of the transmission rod (3).

6. An electronic slurry filtering device, characterized in that: A device and a filter for assisting electronic slurry filtration comprising any one of claims 1-5.

7. The electronic slurry filtering device according to claim 6, characterized in that: The filter comprises a sleeve (8) and a screen (9), wherein the screen (9) is sealingly arranged at the bottom of the sleeve (8).

8. The electronic slurry filtering device according to claim 7, characterized in that: The end of the screen (9) is connected to the outside of the sleeve (8).

9. The electronic slurry filtering device according to claim 7, characterized in that: A collar mechanism (10) is sleeved on the outer wall of the sleeve (8), and the collar mechanism (10) is arranged outside the end of the screen (9).

10. The electronic slurry filtering device according to claim 9, characterized in that: A buckle (11) is provided on the outer wall of the sleeve (8), and the collar mechanism (10) comprises a fixing collar (12) and a tightening collar (13); The fixing ring (12) is in contact with the screen (9); The fastening collar (13) is provided with a positioning pin (14) and a movable screw (15) for inserting into the operating table. The fastening collar (13) is arranged outside the fixing collar (12), and the buckle (11) is fixedly engaged with the movable screw (15).

Images