Device for fixing tangential flow filter

Abstract

The utility model relates to a device for fixing a tangential flow filter, which at least comprises a base, an adjusting mechanism, a lifting sleeve and a clamping mechanism, the adjusting mechanism is mounted on the base, the bottom end of the lifting sleeve is connected with one end, far away from the base, of the adjusting mechanism, and the base is used for being connected with a tangential flow filtering system; the clamping mechanism is mounted on the lifting sleeve, and the clamping mechanism is arranged to be capable of clamping the tangential flow filter so as to fix the tangential flow filter; a lifting rod is sleeved with the lifting sleeve, a pipeline mounting frame is mounted at the top end of the lifting rod, and the pipeline mounting frame is arranged to be a pipeline capable of fixing the tangential flow filtering system; and a locking mechanism is mounted at the top end of the lifting sleeve, and the locking mechanism is arranged to be capable of fixing the height of the lifting rod. According to the utility model, the tangential flow filter can be firmly fixed, so that the situations that the tangential flow filter falls off and the tangential flow filtering work is interrupted can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of tangential flow filtration technology, and in particular to a device for fixing a tangential flow filter. Background Technology

[0002] Tangential flow filtration (TFF) systems are highly efficient separation technologies that use parallel liquid flow to flush the surface of a filter membrane. Internally, they mainly consist of a peristaltic pump, a tangential flow filter, and tubing. Tangential flow filters can purify feed solutions (such as those containing cells, cell debris, or their derivatives) within the tubing. Therefore, TFF systems are commonly used in biopharmaceutical fields such as monoclonal antibody purification, vaccine preparation, and cell debris removal.

[0003] However, in current tangential flow filtration systems, tangential flow filters are typically secured using flange bolts or open clamps. However, flange bolts or open clamps are not very secure in securing the tangential flow filter. Therefore, under high-pressure conditions, the tangential flow filter is prone to shaking and can easily fall off the flange bolts or open clamps, leading to damage. Furthermore, the shaking can easily disrupt the connection between the pipeline and the tangential flow filter, causing an interruption in tangential flow filtration operation.

[0004] Therefore, there is an urgent need for a device for fixing tangential flow filters to securely fix them, thereby preventing the tangential flow filters from falling off and the tangential flow filtration process from being interrupted. Utility Model Content

[0005] The purpose of this invention is to provide a device for fixing a tangential flow filter to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a device for fixing a tangential flow filter, which includes at least a base, an adjusting mechanism, a lifting sleeve, and a clamping mechanism, wherein:

[0008] The adjustment mechanism is mounted on the base, and the bottom end of the lifting sleeve is connected to the end of the adjustment mechanism away from the base. The base is used to connect to the tangential flow filtration system.

[0009] The clamping mechanism is mounted on the lifting sleeve, and the clamping mechanism is configured to clamp the tangential flow filter to fix the tangential flow filter.

[0010] A lifting rod is fitted inside the lifting sleeve, and a pipe mounting bracket is installed at the top of the lifting rod. The pipe mounting bracket is configured to fix the pipes of the tangential flow filtration system.

[0011] The top of the lifting sleeve is equipped with a locking mechanism, which is configured to fix the height of the lifting rod.

[0012] According to one embodiment of the present invention, the adjusting mechanism includes a rotating sleeve fixedly installed at the top of the base, a rotating column slidably sleeved inside the rotating sleeve, the top end of the rotating column being located outside the rotating sleeve and bolted to a connecting rod, and the connecting rod being arranged perpendicular to the rotating column; the end of the connecting rod away from the rotating column is bolted to the bottom end of the lifting sleeve, and the lifting sleeve is arranged parallel to the rotating sleeve.

[0013] According to one embodiment of the present invention, a first knob threaded rod is threadedly installed on the rotating sleeve, and the end of the first knob threaded rod near the rotating column is configured to abut against the side wall of the rotating column; a first knob is coaxially installed on the end of the first knob threaded rod away from the rotating column.

[0014] According to one embodiment of the present invention, the clamping mechanism includes a first filter clip, a second filter clip is hinged to the first filter clip, and filter clamping grooves are provided on the side walls opposite to the first filter clip and the second filter clip.

[0015] The second filter clip is threaded with a third knob threaded rod, and the first filter clip is provided with a third knob threaded hole. The third knob threaded rod is configured to be threaded into the third knob threaded hole to clamp the tangential flow filter between the two filter clamping grooves. A third knob is coaxially mounted on the end of the third knob threaded rod away from the third knob threaded hole.

[0016] The first filter clip is equipped with a clamping connection part, which is used to install the first filter clip on the lifting sleeve.

[0017] According to one embodiment of the present invention, the clamping connection part includes a lifting sleeve clamping piece hinged to the first filter clamping piece, and clamping connection grooves are provided on the side walls opposite to the first filter clamping piece and the lifting sleeve clamping piece, and the clamping connection grooves are adapted to the lifting sleeve.

[0018] The first filter clip is threaded with a second knob threaded rod, and the lifting sleeve clip is provided with a second knob threaded hole. The second knob threaded rod is configured to be threaded into the second knob threaded hole to clamp the lifting sleeve between the two clamping connecting grooves, thereby installing the first filter clip on the lifting sleeve; a second knob is coaxially mounted on the end of the second knob threaded rod away from the second knob threaded hole.

[0019] According to one embodiment of the present invention, an anti-slip layer is installed on the inner wall of both the filter clamping groove and the inner wall of the clamping connection groove.

[0020] According to one embodiment of the present invention, the locking mechanism includes a locking rotating sleeve, wherein the inner sidewall of the locking rotating sleeve is threadedly connected to the outer sidewall of the top end of the lifting sleeve.

[0021] A connecting block is provided inside the locking rotating sleeve, and a spring is fixedly installed on the connecting block. The end of the spring is fixedly installed on the top of the lifting sleeve, and the top of the connecting block abuts against the top of the inner wall of the locking rotating sleeve through the elastic force of the spring.

[0022] Several locking clips are sequentially installed at the bottom end of the connecting block along its circumference. The locking clips are located between the lifting sleeve and the lifting rod, and the two ends of the locking clips abut against the inner side wall of the lifting sleeve and the outer side wall of the lifting rod, respectively.

[0023] The bottom of the locking clip away from the lifting rod is inclined, and the inclined direction of the inclined structure of the locking clip is set towards the lifting rod, so that the thickness of the upper end of the inclined structure of the locking clip is greater than the thickness of the lower end of the inclined structure of the locking clip.

[0024] The inner wall of the lifting sleeve at the position corresponding to the inclined structure of the locking clip is an inclined structure, and the inclined angle and direction of the inclined structure of the lifting sleeve and the inclined structure of the locking clip are the same.

[0025] According to one embodiment of the present invention, a plurality of anti-slip grooves are provided on the outer side wall of the locking rotating sleeve along its axial direction.

[0026] According to one embodiment of the present invention, the pipe mounting bracket has a C-shaped structure, and the connection between the pipe mounting bracket and the lifting rod is located at the center of the pipe mounting bracket.

[0027] According to one embodiment of the present invention, a pipe mounting groove is provided at the end of the pipe mounting bracket away from the lifting rod, and the pipes of the tangential flow filtration system are installed in the pipe mounting groove.

[0028] This utility model has at least the following technical effects:

[0029] Firstly, by using a base, lifting sleeve, and clamping mechanism, this invention avoids the use of flange bolts or open clamps, thus enabling a very secure fixation of the tangential flow filter. This prevents the tangential flow filter from falling off and being damaged, ensuring the normal operation of the tangential flow filtration system.

[0030] Secondly, the present invention, through the setting of the base, lifting sleeve, clamping mechanism, lifting rod and pipeline mounting bracket, can also fix and support the pipeline in the tangential flow filtration system. Therefore, while avoiding the tangential flow filter from falling off, it can also avoid the connection interruption between the pipeline in the tangential flow filtration system and the tangential flow filter, thus ensuring the normal operation of the tangential flow filtration.

[0031] Furthermore, by adjusting the mechanism, the position of the lifting sleeve can be adjusted horizontally, thereby synchronously adjusting the position of the tangential flow filter installed on the lifting sleeve in the horizontal direction. This allows for real-time adjustment of the horizontal position of the tangential flow filter according to its operational requirements, ensuring optimal working conditions for the tangential flow filter.

[0032] Finally, the present invention, through the setting of the lifting rod and the locking mechanism, can adjust the height of the pipeline mounting bracket, thereby enabling good fixation and support of pipelines in tangential flow filtration systems of different lengths or positions, ensuring the operational flexibility of tangential flow filtration. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0036] Figure 3 for Figure 1 A schematic diagram of the overall structure from another angle;

[0037] Figure 4 This is a cross-sectional schematic diagram of the overall structure of the adjustment mechanism in this utility model;

[0038] Figure 5 This is a schematic diagram of the overall structure of the clamping mechanism in this utility model;

[0039] Figure 6 This is a cross-sectional schematic diagram of the overall structure of the locking mechanism in this utility model;

[0040] Figure 7 This is a schematic diagram of the overall structure of the locking clip and connecting block in this utility model;

[0041] Figure 8 This is a schematic diagram of the overall structure of the pipe mounting bracket and the pipe mounting groove in this utility model;

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Base; 2. Rotating sleeve; 3. First knob; 4. Rotating column; 5. Connecting rod; 6. Lifting sleeve; 7. First filter clamp; 8. Lifting sleeve clamp; 9. Second filter clamp; 10. Second knob; 11. Third knob; 12. Locking rotating sleeve; 13. Lifting rod; 14. Locking clamp; 15. Spring; 16. Connecting block; 17. Pipe mounting bracket; 18. Pipe mounting groove; 19. Filter clamping groove. Detailed Implementation

[0044] The features and exemplary embodiments of various aspects of this utility model will be described in detail below. To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this utility model and to exemplarily illustrate the principles of this utility model, and are not configured to limit this utility model. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the dimensions of some structural components or regions in the drawings may be enlarged for other structural components or regions to aid in the understanding of the embodiments of this utility model.

[0045] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this utility model. In the description of this utility model, it should be noted that, unless otherwise stated, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Furthermore, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure or component that includes a list of elements includes not only those elements but also other structural elements that are not expressly listed or inherent to the structure or component. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes the element.

[0047] Spatial relation terms such as "below," "under," "under," "low," "above," "on," and "high" are used for descriptive convenience to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device, in addition to those different from those shown in the figure. Furthermore, phrases such as "one element on / below another element" can indicate that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first" and "second" are also used to describe individual elements, areas, parts, etc., without specifically indicating order or sequence, and should not be considered restrictive. Similar terms are used throughout the description to represent similar elements.

[0048] For those skilled in the art, this invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples.

[0049] In this embodiment, there may be descriptions such as "this device". Those skilled in the art should understand that "this device" refers to a tangential flow filter fixing device provided by this utility model.

[0050] In this embodiment, there may be descriptions such as "staff". Those skilled in the art should understand that the description of "staff" is only for the convenience of describing the implementation of this utility model. It is just an exemplary general concept and is not specifically limited to a particular person.

[0051] Reference Figure 1-8 This utility model provides a device for fixing a tangential flow filter. The device includes at least a base 1, an adjusting mechanism, a lifting sleeve 6, and a clamping mechanism, wherein:

[0052] Reference Figure 1 , Figure 3 and Figure 4 The adjustment mechanism is mounted on the base 1. The bottom end of the lifting sleeve 6 is connected to the end of the adjustment mechanism away from the base 1. The base 1 is used to connect to the tangential flow filtration system so that the device can be installed in the tangential flow filtration system.

[0053] In this embodiment, both the tangential flow filter and the tangential flow filtration system are existing technologies known in the art. For example, commercially available "Whaleintelli hollow fiber filter assembly" (tangential flow filter) and tangential flow filtration systems containing it can be used, which will not be described in detail here.

[0054] In this embodiment, refer to Figure 1 The base 1 can be an inverted square pyramid structure.

[0055] Specifically, refer to Figure 1 and Figure 3 An adjustment mechanism connecting block can be integrally formed on the side wall of the base 1, and the adjustment mechanism is thus installed on the top of the adjustment mechanism connecting block. The base 1 can be installed in the tangential flow filtration system by bolts, and the specific location of installation in the tangential flow filtration system is not particularly limited, as long as it can perform tangential flow filtration smoothly.

[0056] In this embodiment, since the base 1 is an inverted square pyramid structure, the base 1 can also be used to support the tangential flow filtration system when it is installed in the tangential flow filtration system.

[0057] Reference Figure 1 and Figure 3 The clamping mechanism is installed on the lifting sleeve 6. The clamping mechanism is configured to clamp the tangential flow filter, thereby fixing the tangential flow filter.

[0058] In this embodiment, refer to Figure 1 and Figure 3 The lifting sleeve 6 can be a cylindrical structure.

[0059] Reference Figure 2 and Figure 6 The lifting sleeve 6 is fitted with a lifting rod 13, and a pipe mounting bracket 17 is installed at the top of the lifting rod 13. The pipe mounting bracket 17 is configured to fix the pipes of the tangential flow filtration system, thereby providing good fixation and support for the pipes in the tangential flow filtration system.

[0060] In this embodiment, refer to Figure 2 and Figure 6 The lifting rod 13 can also be a cylindrical structure.

[0061] Preferably, the length of the lifting rod 13 can be slightly greater than or equal to the length of the lifting sleeve 6, thereby allowing the lifting rod 13 to be adjusted to a longer length within the lifting sleeve 6, which in turn allows the pipe mounting bracket 17 to be raised to a higher position. For example, when the pipes in the tangential flow filtration system are too long, if the length of the lifting rod 13 is too short, the pipe mounting bracket 17 cannot be raised to the required position. Therefore, the lower position of the pipe mounting bracket 17 will cause the excessively long pipes in the tangential flow filtration system to droop over the tangential flow filtration system, thus failing to provide a good fixing and support effect for the excessively long pipes. Conversely, when the pipes in the tangential flow filtration system are too high, if the length of the lifting rod 13 is too short, the pipe mounting bracket 17 cannot be raised to the required position. In this case, the pipe mounting bracket 17 cannot fix and support the pipes in the higher position of the tangential flow filtration system.

[0062] Reference Figure 1 and Figure 3 The top of the lifting sleeve 6 is equipped with a locking mechanism, which is configured to fix the height of the lifting rod 13.

[0063] In this embodiment, after adjusting the height of the lifting rod 13 as needed, the height of the lifting rod 13 can be fixed by using a locking mechanism.

[0064] In one embodiment of the utility model, the use of flange bolts or open clamps is avoided by setting up the base 1, lifting sleeve 6, and clamping mechanism, thereby enabling a very firm fixation of the tangential flow filter and preventing the tangential flow filter from falling and being damaged. Simultaneously, the base 1, lifting sleeve 6, clamping mechanism, lifting rod 13, and pipe mounting bracket 17 can also fix and support the pipes within the tangential flow filtration system. Therefore, while preventing the tangential flow filter from falling, it also prevents the connection between the pipes and the tangential flow filter within the tangential flow filtration system from being interrupted, ensuring the normal operation of the tangential flow filtration.

[0065] In one embodiment of the utility model, by setting the adjustment mechanism, the position of the lifting sleeve 6 can also be adjusted in the horizontal direction, thereby synchronously adjusting the position of the tangential flow filter installed on the lifting sleeve 6 in the horizontal direction. This allows the horizontal position of the tangential flow filter to be adjusted in real time according to the working requirements of the tangential flow filter, ensuring the optimal working conditions of the tangential flow filter.

[0066] In one embodiment of the utility model, the height of the pipe mounting bracket 17 can be adjusted by the lifting rod 13 and the locking mechanism, thereby enabling good fixation and support of pipes in the tangential flow filtration system of different lengths or positions, ensuring the operational flexibility of the tangential flow filtration.

[0067] According to one embodiment of the present invention, specifically, as follows: Figure 1 , Figure 3 and Figure 4 As shown, the adjustment mechanism includes a rotating sleeve 2 fixedly installed at the top of the base 1 (i.e., installed at the top of the adjustment mechanism connecting block). A rotating column 4 is slidably fitted inside the rotating sleeve 2. The top of the rotating column 4 is located outside the rotating sleeve 2 and is bolted to a connecting rod 5, which is perpendicular to the rotating column 4. The end of the connecting rod 5 away from the rotating column 4 is bolted to the bottom end of a lifting sleeve 6, which is parallel to the rotating sleeve 2, i.e., the lifting sleeve 6 is also perpendicular to the connecting rod 5.

[0068] In this embodiment, refer to Figure 4 Bolt holes are provided at the connection points of connecting rod 5 and rotating column 4, and connecting rod 5 and lifting sleeve 6, so that connecting rod 5 and rotating column 4, and connecting rod 5 and lifting sleeve 6 can be connected by bolts (not shown in the figure). Those skilled in the art should understand that although... Figure 4 The bolts are not shown, only the bolt holes are shown; however, this does not mean that no bolts are installed in the bolt holes when the device is in operation.

[0069] In one embodiment of the utility model, the horizontal positions of the lifting sleeve 6 and the tangential flow filter can be adjusted by rotating the sleeve 2, rotating the column 4, and connecting the rod 5. Specifically, after the lifting sleeve 6, connecting the rod 5, and rotating the sleeve 2 are installed with bolts, the connecting rod 5 can be rotated around the rotating sleeve 2, thereby adjusting the horizontal positions of the lifting sleeve 6 and the tangential flow filter. Since the lifting sleeve 6, connecting the rod 5, and rotating the sleeve 2 are connected by bolts, they can also be easily disassembled for replacement and assembly.

[0070] In this embodiment, refer to Figure 4 A pin is installed at the bottom of the rotating column 4. This pin slides with the bottom of the adjusting mechanism connecting block, thereby preventing the rotating column 4 from disengaging from the rotating sleeve 2, thus achieving a limited rotational engagement between the two.

[0071] Furthermore, referring to Figure 4 The rotating sleeve 2 is threaded with a first knob thread rod, and the end of the first knob thread rod near the rotating column 4 is configured to abut against the side wall of the rotating column 4.

[0072] In this embodiment, refer to Figure 4 The side wall of the rotating sleeve 2 is provided with a first knob threaded hole perpendicular to the rotating sleeve 2. The first knob threaded rod is threadedly engaged with the first knob threaded hole to thread the first knob threaded rod onto the rotating sleeve 2.

[0073] In one embodiment of the utility model, after the horizontal position of the lifting sleeve 6 and the tangential flow filter is adjusted, the operator can rotate the first knob threaded rod and move it toward the rotating column 4. At this time, the first knob threaded rod will abut against the side wall of the rotating column 4, thereby fixing the adjusted position of the lifting sleeve 6 and the tangential flow filter through the friction between the first knob threaded rod and the rotating column 4.

[0074] Furthermore, referring to Figure 4 A first knob 3 is coaxially mounted on the end of the first knob threaded rod away from the rotating column 4. The first knob 3 makes it easier for the operator to rotate the first knob threaded rod.

[0075] According to one embodiment of the present invention, specifically referring to... Figure 1 , Figure 3 and Figure 5 The clamping mechanism includes a first filter clip 7, a second filter clip 9 hinged to the first filter clip 7, and the side walls of the first filter clip 7 and the second filter clip 9 facing each other (i.e. Figure 5 Filter clamping grooves 19 are provided on the right side wall of the first filter clamp 7 and the left side wall of the second filter clamp 9. A third knob threaded rod is threadedly installed on the second filter clamp 9, and a third knob threaded hole (not shown in the figure) is provided on the first filter clamp 7. The third knob threaded rod is designed to be threaded into the third knob threaded hole to clamp the tangential flow filter between the two filter clamping grooves 19.

[0076] In this embodiment, since most tangential flow filters are cylindrical, the structure of the filter clamping groove 19 can be an arc-shaped structure or a roughly arc-shaped structure to better clamp the tangential flow filter.

[0077] In one embodiment of the utility model, when it is necessary to clamp the tangential flow filter, firstly, the second filter clip 9 is opened on the first filter clip 7 through their hinged joint. Then, the tangential flow filter is placed between the filter clamping grooves 19 of the two clips, and the second filter clip 9 is closed again on the first filter clip 7. This clamps the tangential flow filter between the two filter clamping grooves 19. Finally, the third knob threaded rod is turned and moved towards the first filter clip 7 until it is screwed into the third knob threaded hole. This achieves relative locking between the second filter clip 9 and the first filter clip 7, thereby firmly clamping the tangential flow filter.

[0078] Furthermore, a third knob 11 is coaxially mounted on the end of the third knob threaded rod away from the third knob threaded hole. The third knob 11 makes it easier to turn the third knob threaded rod.

[0079] According to one embodiment of the present invention, a clamping connection part is installed on the first filter clip 7, which is used to install the first filter clip 7 on the lifting sleeve 6.

[0080] According to one embodiment of the present invention, specifically referring to... Figure 1 , Figure 3 and Figure 5 The clamping connection includes a lifting sleeve clamp 8 hinged to the first filter clamp 7. Clamping connection grooves are provided on the opposite side walls of the first filter clamp 7 and the lifting sleeve clamp 8, and these grooves are adapted to fit the lifting sleeve 6. A second knob threaded rod is threaded onto the first filter clamp 7, and a second knob threaded hole is provided on the lifting sleeve clamp 8. The second knob threaded rod is configured to thread into the second knob threaded hole to clamp the lifting sleeve 6 between the two clamping connection grooves, thereby mounting the first filter clamp 7 onto the lifting sleeve 6.

[0081] In this embodiment, the hinge position of the lifting sleeve clamp 8 and the first filter clamp 7 is located at the end of the second filter clamp 9 and the first filter clamp 7 that is away from the filter clamping groove 19, and a gap is provided between the lifting sleeve clamp 8 and the second filter clamp 9 to ensure that both the lifting sleeve clamp 8 and the second filter clamp 9 can be smoothly opened and closed on the first filter clamp 7.

[0082] In this embodiment, since the lifting sleeve 6 is a cylindrical structure, the clamping connection groove is a semi-cylindrical structure. When the two clamping connection grooves are put together, the diameter of the cylindrical hole formed is the same as the cross-sectional diameter of the lifting sleeve 6. Thus, the lifting sleeve 6 is clamped between the two clamping connection grooves, and the first filter clip 7 can be installed on the lifting sleeve 6.

[0083] In this embodiment, when it is necessary to install the first filter clip 7 on the lifting sleeve 6, the lifting sleeve clip 8 is opened, and the lifting sleeve 6 is placed between the two clamping connection grooves. Then, the first filter clip 7 and the lifting sleeve clip 8 are closed again, and the second knob threaded rod is turned into the second knob threaded hole. At this time, the first filter clip 7 and the lifting sleeve clip 8 can be locked relative to each other, and the first filter clip 7 can be installed on the lifting sleeve 6.

[0084] In addition, the above configuration allows the first filter clip 7 to be installed at any height on the lifting sleeve 6, meaning that the tangential flow filter can be installed at any height on the lifting sleeve 6 according to actual working needs, ensuring the process flexibility of tangential flow filtration.

[0085] Furthermore, referring to Figure 5 A second knob 10 is coaxially mounted on the end of the second knob threaded rod away from the second knob threaded hole. The second knob 10 makes it easier to turn the second knob threaded rod.

[0086] Furthermore, anti-slip layers (not shown in the figure) are installed on the inner walls of both the filter clamping groove 19 and the clamping connection groove. The anti-slip layers increase the friction between the filter clamping groove 19 and the tangential flow filter, and between the clamping connection groove and the lifting sleeve 6. This allows the tangential flow filter to be more firmly fixed between the first filter clip 7 and the second filter clip 9, and also makes the first filter clip 7 and the lifting sleeve clip 8 more firmly fixed on the lifting sleeve 6. The material of the anti-slip layer is not specifically limited; it can be any anti-slip silicone material known in the art.

[0087] According to one embodiment of the present invention, specifically referring to... Figure 6 The locking mechanism includes a locking rotating sleeve 12, the inner wall of which is threadedly connected to the outer wall of the top end of the lifting sleeve 6.

[0088] In this embodiment, refer to Figure 1 and Figure 3 The locking rotating sleeve 12 can be a cylindrical structure.

[0089] Reference Figure 6 or Figure 7 A connecting block 16 is provided inside the locking rotating sleeve 12, and a spring 15 is fixedly installed on the connecting block 16. Figure 6 The top of the middle spring 15), the end of the spring 15 (i.e. Figure 6 The bottom end of the middle spring 15 is fixedly installed on the top end of the lifting sleeve 6. The top end of the connecting block 16 can abut against the top end of the inner wall of the locking rotating sleeve 12 through the elastic force of the spring 15 (contact fit), and the top end of the connecting block 16 can slide relative to the top end of the inner wall of the locking rotating sleeve 12.

[0090] like Figure 7 As shown, several locking clips 14 are sequentially installed along the circumference of the bottom end of the connecting block 16, such as... Figure 6As shown, the locking clip 14 is located between the lifting sleeve 6 and the lifting rod 13, and the two ends of the locking clip 14 abut (contact fit) with the inner side wall of the lifting sleeve 6 and the outer side wall of the lifting rod 13 respectively, and can slide relative to the inner side wall of the lifting sleeve 6 and the outer side wall of the lifting rod 13 respectively.

[0091] In this embodiment, refer to Figure 7 The connecting block 16 can be a flat cylindrical structure, and the locking clip 14 can be a long arc-shaped structure.

[0092] In this embodiment, refer to Figure 7 The number of locking clips 14 installed at the bottom of the connecting block 16 can be four. Since the locking clips 14 have an arc-shaped structure, the interiors of the four locking clips 14 will form a cylindrical hole structure, and the diameter of this hole will be the same as the diameter of the cross-section of the lifting rod 13.

[0093] In this embodiment, the material of the locking clip 14 is not specifically limited, as long as it is a material that can produce a slight deformation and return to its original state. For example, the locking clip 14 can be a shape memory metal material known in the art.

[0094] like Figure 6 and Figure 7 As shown, the bottom of the locking clip 14 at the end away from the lifting rod 13 is an inclined structure, and the inclined direction of the inclined structure of the locking clip 14 is set towards the lifting rod 13, so that the upper part of the inclined structure of the locking clip 14 (i.e. Figure 6 The thickness of the upper part of the inclined structure of the locking clip 14 is greater than (thicker than) the lower part of the inclined structure of the locking clip 14. Figure 6 The thickness of the lower part of the inclined structure of the locking clip 14 (inwardly inclined). Figure 7 As shown, since the four locking clips 14 form a cylindrical structure in this embodiment, the inclined structure of the four locking clips 14 will form a structure similar to an inverted truncated cone.

[0095] like Figure 6 As shown, the inner wall of the lifting sleeve 6 and the locking clamp 14 at the corresponding positions is also an inclined structure, and the inclined angle and direction of the inclined structure of the lifting sleeve 6 and the inclined structure of the locking clamp 14 are the same.

[0096] In this embodiment, as Figure 6As shown, since the inner wall of the lifting sleeve 6 at the position corresponding to the inclined structure of the locking clip 14 is also inclined, the inner diameter of the upper part of this inclined structure position (i.e., the inner diameter of the lifting sleeve 6) will be larger than the inner diameter of the lower part of this inclined structure position. In this embodiment, the inner wall of the lower part of the inclined structure position (i.e., the inner wall of the lifting sleeve 6) does not contact the side wall of the lifting rod 13.

[0097] In one embodiment of this utility model, when it is necessary to fix the height of the adjusted lifting rod 13, the operator can rotate the locking rotating sleeve 12 and move the locking rotating sleeve 12 downward. At this time, the locking rotating sleeve 12 will press down on the connecting block 16 and the locking clamp 14 until the inclined structure of the locking clamp 14 is completely located at the inclined structure of the inner wall of the lifting sleeve 6. At this time, if the locking rotating sleeve 12 is rotated further, the inclined structure of the inner wall of the lifting sleeve 6 will squeeze the inclined structure of the locking clamp 14, and then the locking clamp 14 will squeeze the side wall of the lifting rod 13. Thus, the lifting rod 13 can be fixed by the friction between the locking clamp 14 and the side wall of the lifting rod 13.

[0098] Furthermore, referring to Figure 1 Several anti-slip grooves are formed along the axial direction on the outer side wall of the locking rotating sleeve 12. The anti-slip grooves make it easier to rotate the locking rotating sleeve 12.

[0099] According to one embodiment of the present invention, referring to... Figure 1 , Figure 3 and Figure 8 The pipe mounting bracket 17 has a C-shaped structure or is roughly C-shaped, and the connection between the pipe mounting bracket 17 and the lifting rod 13 is located at the center of the pipe mounting bracket 17.

[0100] In this embodiment, a pipe mounting bracket mounting block is integrally formed at the C-shaped structure of the pipe mounting bracket 17, and an internal thread hole is provided on the pipe mounting bracket mounting block. The top end of the lifting rod 13 can be tapped with an external thread, so that the pipe mounting bracket 17 can be threaded onto the top end of the lifting rod 13.

[0101] According to one embodiment of the present invention, referring to... Figure 1 , Figure 3 and Figure 8 The pipe mounting bracket 17 has a pipe mounting groove 18 at the end away from the lifting rod 13, and the pipes of the tangential flow filtration system are installed in the pipe mounting groove 18.

[0102] In this embodiment, the pipe mounting groove 18 can be formed at the arc-shaped structure of the C-shaped structure of the pipe mounting bracket 17 and arranged along the length of the pipe mounting bracket 17. The groove width of the pipe mounting groove 18 can be slightly smaller than the pipe of the tangential flow filtration system. This allows the pipe of the tangential flow filtration system to be installed in the pipe mounting groove 18 with a small interference fit (i.e., the inner wall of the pipe mounting groove 18 will slightly compress the pipe of the tangential flow filtration system), thereby ensuring the connection stability between the pipe of the tangential flow filtration system and the pipe mounting bracket 17.

[0103] The above embodiments of this utility model can be combined with each other and have corresponding technical effects.

[0104] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for fixing a tangential flow filter, characterized in that, It includes at least a base (1), an adjustment mechanism, a lifting sleeve (6), and a clamping mechanism, wherein: The adjustment mechanism is installed on the base (1), and the bottom end of the lifting sleeve (6) is connected to the end of the adjustment mechanism away from the base (1). The base (1) is used to connect with the tangential flow filtration system. The clamping mechanism is installed on the lifting sleeve (6), and the clamping mechanism is configured to clamp the tangential flow filter to fix the tangential flow filter. The lifting sleeve (6) is fitted with a lifting rod (13), and a pipe mounting bracket (17) is installed at the top of the lifting rod (13). The pipe mounting bracket (17) is configured to fix the pipe of the tangential flow filtration system. The top of the lifting sleeve (6) is equipped with a locking mechanism, which is configured to fix the height of the lifting rod (13).

2. The tangential flow filter fixing device according to claim 1, characterized in that, The adjustment mechanism includes a rotating sleeve (2) fixedly installed on the top of the base (1). A rotating column (4) is slidably sleeved inside the rotating sleeve (2). The top of the rotating column (4) is located outside the rotating sleeve (2) and is bolted to a connecting rod (5). The connecting rod (5) is perpendicular to the rotating column (4). The end of the connecting rod (5) away from the rotating column (4) is bolted to the bottom end of the lifting sleeve (6). The lifting sleeve (6) is parallel to the rotating sleeve (2).

3. The tangential flow filter fixing device according to claim 2, characterized in that, The rotating sleeve (2) is threaded with a first knob thread rod, and the end of the first knob thread rod near the rotating column (4) is configured to abut against the side wall of the rotating column (4); the end of the first knob thread rod away from the rotating column (4) is coaxially mounted with a first knob (3).

4. The tangential flow filter fixing device according to claim 1, characterized in that, The clamping mechanism includes a first filter clip (7), a second filter clip (9) is hinged to the first filter clip (7), and filter clamping grooves (19) are provided on the side walls of the first filter clip (7) and the second filter clip (9) respectively. The second filter clip (9) is threaded with a third knob thread rod, and the first filter clip (7) is provided with a third knob thread hole. The third knob thread rod is configured to be threaded into the third knob thread hole to clamp the tangential flow filter between the two filter clamping grooves (19). A third knob (11) is coaxially installed on the end of the third knob thread rod away from the third knob thread hole. The first filter clip (7) is equipped with a clamping connection part, which is used to install the first filter clip (7) on the lifting sleeve (6).

5. The tangential flow filter fixing device according to claim 4, characterized in that, The clamping connection part includes a lifting sleeve clamp (8) hinged to the first filter clamp (7), and clamping connection grooves are provided on the side walls opposite to the first filter clamp (7) and the lifting sleeve clamp (8), and the clamping connection grooves are adapted to the lifting sleeve (6). The first filter clip (7) is threaded with a second knob thread rod, and the lifting sleeve clip (8) is provided with a second knob thread hole. The second knob thread rod is configured to be threaded into the second knob thread hole so as to clamp the lifting sleeve (6) between the two clamping connection grooves, thereby installing the first filter clip (7) on the lifting sleeve (6); the end of the second knob thread rod away from the second knob thread hole is coaxially mounted with a second knob (10).

6. The tangential flow filter fixing device according to claim 5, characterized in that, An anti-slip layer is installed on the inner wall of both the filter clamping groove (19) and the clamping connection groove.

7. The tangential flow filter fixing device according to claim 1, characterized in that, The locking mechanism includes a locking rotating sleeve (12), the inner sidewall of which is threadedly connected to the outer sidewall of the top end of the lifting sleeve (6); A connecting block (16) is provided inside the locking rotating sleeve (12), and a spring (15) is fixedly installed on the connecting block (16). The end of the spring (15) is fixedly installed on the top of the lifting sleeve (6), and the top of the connecting block (16) abuts against the top of the inner wall of the locking rotating sleeve (12) through the elastic force of the spring (15). A number of locking clips (14) are sequentially installed at the bottom end of the connecting block (16) along its circumference. The locking clips (14) are located between the lifting sleeve (6) and the lifting rod (13), and the two ends of the locking clips (14) abut against the inner side wall of the lifting sleeve (6) and the outer side wall of the lifting rod (13), respectively. The bottom of the locking clip (14) away from the lifting rod (13) is inclined, and the inclined direction of the inclined structure of the locking clip (14) is set towards the lifting rod (13), so that the thickness of the upper end of the inclined structure of the locking clip (14) is greater than the thickness of the lower end of the inclined structure of the locking clip (14). The inner wall of the lifting sleeve (6) at the position corresponding to the inclined structure of the locking clip (14) is an inclined structure, and the inclined angle and direction of the inclined structure of the lifting sleeve (6) and the inclined structure of the locking clip (14) are the same.

8. The tangential flow filter fixing device according to claim 7, characterized in that, Several anti-slip grooves are provided on the outer wall of the locking rotating sleeve (12) along its axial direction.

9. The tangential flow filter fixing device according to claim 1, characterized in that, The pipe mounting bracket (17) has a C-shaped structure, and the connection between the pipe mounting bracket (17) and the lifting rod (13) is located at the center of the pipe mounting bracket (17).

10. The tangential flow filter fixing device according to claim 9, characterized in that, The pipe mounting bracket (17) has a pipe mounting groove (18) at one end away from the lifting rod (13), and the pipes of the tangential flow filtration system are installed in the pipe mounting groove (18).

Images