CN213077710U

CN213077710U - Fixing device of filter

Info

Publication number: CN213077710U
Application number: CN202021294582.6U
Authority: CN
Inventors: 贾建东; 陈玉道; 张文鑫
Original assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Current assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-04-30
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a fixing device of filter, include: a base; a fixing part for connecting the filter; two or more rotary fixing pieces rotatably connected to the base and including a clamping portion and a pressing portion; the driving piece is connected with the fixing portion and used for driving the pressing portion to rotate, so that the clamping portion is close to the clamping filter or is far away from the clamping filter to loosen the filter. The utility model drives the pressing part to rotate by the driving part, drives the clamping part to synchronously rotate and clamp the filter, and has simple and convenient operation; the clamping parts clamp or release the filter along the outer diameter of the filter, the clamping structure is stable and effective, the length of the clamping parts is far greater than that of the pressing part, the clamping parts extend along the height direction, and a stable clamping effect is formed on the filter in the vertical direction; the contact area between the base and the plane is large when the base is placed, so that the base is more stable, and the base cannot deviate or topple in the using process; the whole assembly structure is simple and stable, and the use cost is low.

Description

Fixing device of filter

Technical Field

The utility model belongs to the technical field of filter, especially, relate to a fixing device of filter.

Background

Chinese patent CN100344342C discloses a fixing device for disposable filters, which is composed of three or more legs, a base located above and connected to the legs, and three or more arms connected to the opposite surface of the base with respect to the surface of the legs connected to the base. The arms and legs have at least one curved or angled portion to cause the arms and legs to flare radially outward of the base.

When a conventional stand-alone cartridge filter is used in biotechnology or pharmaceutical processing, it is typically inserted into a stationary stainless steel housing that can be fixedly or semi-fixedly mounted on the pharmaceutical processing line.

In recent years, the trend in the pharmaceutical or bio-industrial fields has shifted towards the use of disposable filtration vessels as opposed to the stainless steel systems described above. The use of these disposable filtration vessels also entails challenges in clamping or securing the filtration vessels during manufacture.

These disposable container devices do not fit into conventional in-line or T-line stainless steel holders, which are often simply placed on a work bench or rolling cart and connected to the system by plastic tubing, and require the use of straps or clamps to temporarily hold them in place in order to prevent them from moving. Wall mounts may also be formed to hold the container in place.

One such floor stand design includes a base, a center post, and one or more brackets on top of the center post for holding the container in place. Such floor stand has the disadvantage that it can only hold the container in a mouth up position, wherein the inlet and outlet ports, either at the top or the rest of the container, project downwardly, and they are not or not effectively operable in the mouth up position, since some containers are designed to be operated in a mouth down position, wherein the inlet and outlet ports are at the bottom and the rest of the container projects upwardly.

This design is static and occupies a large amount of floor space during use and storage. Finally, such devices can exhibit numerous crevices and hooks that are difficult to clean.

There is therefore a need for a simpler, more effective floor stand for disposable filtration vessels. At the client application end, the fixing device can realize the fixing and the quick replacement of the filter.

However, the fixing device is formed by contacting the supporting legs with the ground, the contact area of the supporting legs with the ground is too small, and the filter filled with the feed liquid is heavy, so that the fixing device drives the filter device to turn over laterally easily, and production accidents are caused.

The fixing device can only limit the filter device in the horizontal direction and cannot limit the movement in the vertical direction. The filter can rock in the use, if do not have the locking device, this positioner can not reach ideal effect, and this fixing device is disposable, and is too high with high costs from the cost perspective, also causes certain wasting of resources.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a fixing device of a filter, which is stable in clamping, difficult to topple and low in use cost.

The utility model provides a technical scheme that its technical problem adopted is: a filter holding apparatus comprising:

a base;

a fixing part for connecting the filter;

two or more rotary fixing pieces rotatably connected to the base and including a clamping portion and a pressing portion;

the driving piece is connected with the fixing portion and used for driving the pressing portion to rotate, so that the clamping portion is close to the clamping filter or is far away from the clamping filter to loosen the filter.

The utility model discloses a rotatory mounting includes the clamping part and presses two parts of splenium, can drive through the activity of driving piece and press splenium at vertical in-plane rotation, and then drive the clamping part and be close to each other in step or keep away from each other, realize the centre gripping of filter or relax, convenient operation not only, the change of filter is simple quick, and is firm effective to the centre gripping of filter moreover, also can nimble centre gripping to the filter of different volumes, need not to adjust the operation, and adaptability is good.

Further, a through groove for the rotating fixing piece to pass through is formed in the base, a fixing groove for containing the rotating shaft is further formed in the base, the fixing groove is crossed with the through groove, and the rotating fixing piece is connected to the base through the rotating shaft in a rotating mode.

The setting up of fixed slot has carried on spacingly to the countershaft, when guaranteeing the pivot pivoted, avoids its skew at will, and then inject rotatory mounting and can only round the pivot at an in-plane rotation, can not the skew, guarantee the stable centre gripping to the filter.

Furthermore, the driving part is provided with an inclined surface matched with the pressing part, and the inclined surface drives the pressing part to rotate in a vertical plane when the driving part rotates in the circumferential direction; or the driving piece translates up and down to drive the pressing part to rotate in a vertical plane.

No matter be the rotation driving piece drive press the splenium to rotate, still about the translation driving piece drive press the splenium to rotate, the operation is all very convenient, can operate on the filter moreover, drives the driving piece activity to operating space is great relatively, need not to adjust the operation alone to the driving piece or to each rotation fixing spare.

Furthermore, the two ends of the inclined surface are provided with stopping parts for limiting the pressing part.

The design of backstop portion avoids pressing the splenium to break away from the inclined plane, guarantees to press the effective contact state of splenium and driving piece.

Furthermore, the inclined surface is also provided with an embedding part used for embedding the pressing part in a clamping manner.

The design of the clamping and embedding part enables the pressing part to stay in the clamping and embedding part, so that the clamping part is kept in a state of firmly clamping the filter, and the clamping of the filter is more stable; need not to set up locking mechanism very much, the centre gripping portion also can stabilize centre gripping filter, and simple structure is effective.

Furthermore, it is connected to contradict between pressing the portion and the driving piece, perhaps it articulates between portion and the driving piece to press.

The pressing part and the driving part are connected in various modes, and the assembly structure is more flexible.

Further, the driving piece is in close fit connection with the base;

or the driving part is provided with a stretching elastic part, one end of the stretching elastic part is abutted against the driving part, and the other end of the stretching elastic part is abutted against the base;

or the driving part is provided with a compression elastic part, one end of the compression elastic part is abutted against the base, and the other end of the compression elastic part is abutted against the fixing part.

The driving piece is tightly matched and connected with the base, and the connecting structure is simple; when setting up the elastic component on the driving piece, be convenient for take off the reseing of driving piece behind the filter, different positions set up the elastic component of different performance, guarantee the effective reseing of driving piece, and the elastic component can increase the centre gripping dynamics of clamping part to the filter moreover for filter assembly structure is more firm.

Furthermore, an included angle is formed between the clamping part and the pressing part, and a hole for the rotating shaft to pass through is formed in the clamping part.

Clamping part and pressing portion body coupling, press the splenium when rotatory, the synchronous linkage of clamping part, linkage simple structure, the action is effective, need not alone to pressing portion and clamping part and do not adjusting the operation, and is more effective to the centre gripping of filter.

Furthermore, the through grooves radially extend by taking the center of the filter as a circle center.

The cross structure that logical groove and fixed slot were led to in the cooperation for rotatory mounting can only use the pivot to form the lever at a plane internal rotation as the fulcrum, thereby the clamping part, press splenium and pivot, can only be at vertical plane internal rotation according to the splenium, and the clamping part also can only be along the radial centre gripping filter of filter, and is firm effective to the centre gripping of filter.

Further, the driving piece penetrates through the base and is connected with the fixing portion.

The driving piece penetrates through the base and then is connected with the fixing portion, and therefore the fixing portion and the driving piece are more simple and convenient to assemble.

The utility model has the advantages that: 1) the pressing part is driven to rotate by the driving part to drive the clamping part to synchronously rotate to clamp the filter, so that the operation is simple and convenient; 2) the driving piece is rotated in the circumferential direction or translated up and down, so that the pressing part can rotate in a vertical plane, the operation mode is simple and diversified, the plurality of clamping parts synchronously rotate to clamp the filter, and each clamping part is not required to be adjusted; 3) the clamping parts clamp or release the filter along the outer diameter of the filter, the clamping structure is stable and effective, the length of the clamping parts is far greater than that of the pressing part, the clamping parts extend along the height direction, and a stable clamping effect is formed on the filter in the vertical direction; 4) a locking mechanism with a complex structure is not needed, and only a convex part is needed to be arranged at a position near the end part of the inclined plane, so that the hand feeling is obviously prompted, and the locking effect is stable; 5) the contact area between the base and the plane is large when the base is placed, so that the base is more stable, and the base cannot deviate or topple in the using process; 6) the whole assembly structure is simple and stable, and the use cost is low.

Drawings

Fig. 1 is a perspective view of a fixing device according to an embodiment of the present invention.

Fig. 2 is an exploded view of a fixing device according to an embodiment of the present invention.

Fig. 3 is a perspective view of a rotating fixing member of a fixing device according to an embodiment of the present invention.

Fig. 4 is a perspective view of a driving member of a fixing device according to an embodiment of the present invention.

Fig. 5 is a perspective view of another structure of a driving member of a fixing device according to an embodiment of the present invention.

Fig. 6 is a partial cross-sectional view of a rotating fixing member of a fixing device according to an embodiment of the present invention in a deployed state.

Fig. 7 is a partial cross-sectional view of a rotary fixing member of a fixing device in a clamping state according to an embodiment of the present invention.

Fig. 8 is a perspective view of a fixing device according to a second embodiment of the present invention.

Fig. 9 is an exploded view of a fixing device according to a second embodiment of the present invention.

Fig. 10 is an enlarged view of a structure in fig. 9.

Fig. 11 is a partial cross-sectional view of the rotating fixing member of the fixing device according to the second embodiment of the present invention in the unfolded state.

Fig. 12 is a partial cross-sectional view of the rotating fixing member of the fixing device according to the second embodiment of the present invention in a clamping state.

The novel LED lamp comprises a base 1, a through groove 11, a fixing groove 12, a slot 13, a fixing part 2, a concave part 21, a convex rib 22, an arc-shaped surface 23, a rotary fixing part 3, a clamping part 31, a hole 311, a protective sleeve 312, a pressing part 32, a driving part 4, an inclined surface 41, a stopping part 42, a clamping and embedding part 43, a first bulge 44, a second bulge 45, an arc section 46, a convex rib 47, an inclined sliding groove 48, a flange 49, a rotating shaft 5, a cover 6, a second through groove 61 and a convex part 62.

Detailed Description

In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Example one

As shown in fig. 1 to 7, a fixing device for a filter includes a base 1, a fixing portion 2 for connecting the filter, a rotary fixing member 3 rotatably connected to the base 1, and a driving member 4 connected to the fixing portion 2; the number of the rotary fixing members 3 is two or more, and when the filter is mounted on the fixing portion 2, the driving member 4 can drive the pressing portion 32 to rotate, so that the plurality of clamping portions 31 can be close to each other to clamp the filter or be far away from each other to loosen the filter, where the filter can be a bag filter.

As shown in fig. 3, the rotating fixing member 3 includes a clamping portion 31 and a pressing portion 32, in this embodiment, the number of the rotating fixing member 3 is four, the clamping portion 31 and the pressing portion 32 are integrally connected, and an included angle is formed, the length of the clamping portion 31 is much greater than that of the pressing portion 32, a hole 311 is formed in a position close to the pressing portion 32 on the clamping portion 31, a protective sleeve 312 made of an elastic material is sleeved on an end portion of the clamping portion 31 far away from the pressing portion 32, the protective sleeve 312 can play a role in buffering, the outer diameter of the top end of the clamping portion 31 is increased, and clamping of the filter is more stable. Of course, in other embodiments, the clamping portion 31 and the pressing portion 32 may be separately disposed, and both may be connected through an adaptor, or may be disposed on a straight rod, or other special-shaped structures; when the clamping device is used, the driving part 4 can drive the pressing part 32 to rotate in a vertical plane, so that a lever formed by the pressing part 32, the rotating shaft 5 and the clamping part 31 can be pried.

The rotary fixing member 3 is rotatably connected to the base 1 through a rotating shaft 5, and the rotating shaft 5 passes through the hole 311; the base 1 is formed with a through groove 11 and a fixing groove 12 for accommodating the rotating shaft 5, the size and shape of the fixing groove 12 are adapted to the rotating shaft 5, and the fixing groove 12 and the through groove 11 are in a cross structure. When the rotating fixing member 3 is assembled with the base 1, the clamping portion 31 of the rotating fixing member 3 passes through the through slot 11 from bottom to top, when the hole 311 is exposed, the rotating shaft 5 transversely passes through the hole 311, and then the rotating shaft 5 is placed in the fixing slot 12, so that the rotating fixing member 3 is erected on the base 1 by taking the rotating shaft 5 as a fulcrum.

In order to make the clamping part 31 clamp the filter along the radial direction of the filter and ensure that the clamping part 31 cannot deflect randomly, the four through grooves 11 extend along the radial direction by taking the center of the filter as the center.

In order to limit the relative position of the rotating shaft 5, a cover body 6 is arranged on the base 1, a second through groove 61 is formed on the cover body 6 at a position corresponding to the through groove 11, the rotating fixing member 3 can penetrate out of the second through groove 61, but is closed at a position corresponding to the fixing groove 12, and therefore the rotating shaft 5 is limited in the fixing groove 12. Of course, in other embodiments, the cover 6 and the base 1 may be combined to form the fixing groove 12, that is, a portion of the fixing groove 12 is located on the lower surface of the cover 6, and a portion of the rotating shaft 5 protrudes from the upper surface of the base 1 after the rotating shaft 5 and the base 1 are assembled.

In order to ensure that the base 1 remains stable after the filter is placed on the fixing portion 2, the cross section of the base 1 may be designed to be an isosceles racetrack structure. Therefore, under the condition of the same floor area, the isosceles runway-shaped base 1 can be placed at a specified position more stably, the contact area of the base 1 and the ground is large, the relative self weight of the base 1 is large, and the base cannot deviate in the using process.

In order to facilitate the positioning of the base 1 and the cover 6 during the assembling connection, two convex parts 62 are formed on the lower surface of the cover 6 in a protruding manner, and a slot 13 matched with the convex parts 62 in size and shape is formed in the corresponding position on the base 1, so that the convex parts 62 extend into the slot 13 from top to bottom, and the accurate positioning assembly of the base 1 and the cover 6 can be easily realized.

A fixed part 2 for connecting the filter is connected on base 1, and fixed part 2 forms the depressed part 21 that the bottom surface is the cambered surface, and this depressed part 21 upwards extends perpendicularly and forms protruding muscle 22 that can be connected with filter assembly, and the both ends of this protruding muscle 22 respectively with two inside wall fixed connection of fixed part 2, the both sides wall top surface of fixed part 2 forms arcwall face 23 respectively, and the filter can the centre gripping on protruding muscle 22.

The base 1 is internally provided with a driving part 4, and the driving part 4 passes through the base 1 and the cover 6 and then is connected with the bottom surface of the fixing part 2, which can be fixed and connected by screws. The driving part 4 is provided with an inclined surface 41 which can be matched with the pressing part 32, and when the driving part 4 rotates in the circumferential direction, the inclined surface 41 can drive the pressing part 32 to rotate in a vertical plane; alternatively, when the driving member 4 translates up and down, the driving member 4 can drive the pressing portion 32 to rotate in the vertical plane.

In the present embodiment, when the driving element 4 rotates circumferentially, the inclined surface 41 can drive the pressing portion 32 to rotate in a vertical plane, specifically, as shown in fig. 4, four inclined sliding slots 48 are formed on the side wall of the driving element 4, the inclined sliding slots 48 include an inclined section, a second protrusion 45, and an arc section 46, and the inclined surface 41 can be an inclined section of the inclined sliding slot 48; perpendicular distance between the bottom surface slightly is less than the external diameter of pressing the portion 32 in second arch 45 and the circular arc section 46, distance more than or equal to between second arch 45 and the circular arc section 46 top presses the external diameter of portion 32, thereby when driving piece 4 circumferential direction is rotatory, press the portion 32 to support inclined plane 41 activity, move to the protruding 45 time of second when pressing the portion 32, need exert slightly external force, make and press the portion 32 to cross the protruding 45 entering circular arc section 46 of second, again because the distance more than or equal to between the protruding 45 of second and the circular arc section 46 top presses the external diameter of portion 32, make and press the portion 32 to fall into and spacing in circular arc section 46, clamping part 31 forms firm clamping action to the filter this moment.

Thereby the inclined chute 48 of driving piece 4 is connected with pressing portion 32 of rotatory mounting 3 in an inconsistent manner, when driving piece 4 rotates circumferentially, pressing portion 32 moves against inclined surface 41, under the drive of inclined surface 41, receive the restriction of pivot 5 and fixed slot 12, pressing portion 32 is pushed down gradually and is rotated in vertical plane, make clamping portion 31 be close to the filter along radial, along with the rotation of driving piece 4, clamping portion 31 is more and more powerful to the centre gripping of filter, until pressing portion 32 cross second arch 45 and get into circular arc section 46, make pressing portion 32 inlay card between circular arc section 46 and second arch 45, restricted pressing portion 32's activity, make clamping portion 31 draw close together each other and stabilize centre gripping filter, as shown in fig. 7.

The structure of the driving member 4 may be another form, as shown in fig. 5, the driving member 4 is cylindrical, the outer wall of the driving member 4 is formed with a plurality of ribs 47 extending spirally along the circumferential direction, the number of the ribs 47 is the same as the number of the rotating fixing members 3, and is also four, the inclined surface 41 is formed on the lower surface of the rib 47, the two ends of the rib 47 are respectively provided with a stop portion 42 for limiting the pressing portion 32, and the inclined surface 41 is provided with a snap-fit portion 43 at a position close to the lower end stop portion 42, that is, the snap-fit portion 43 is formed by the first protrusion 44 and the lower end stop portion 42.

Thereby inclined plane 41 of driving piece 4 and the pressing portion 32 of rotatory mounting 3 are connected in touch with each other, when driving piece 4 circumferential direction is rotatory, pressing portion 32 and moving against inclined plane 41, under the drive of inclined plane 41, receive the restriction of pivot 5 and fixed slot 12, press portion 32 to be pushed down gradually and rotate in vertical plane, make clamping part 31 be close to the filter along radial, along with the rotation of driving piece 4, clamping part 31 is more and more powerful to the centre gripping of filter, until pressing portion 32 and crossing first arch 44 and getting into in inlay card portion 43, make pressing portion 32 inlay card between backstop portion 42 and first arch 44, inlay card portion 43 has restricted pressing portion 32's activity, make clamping part 31 draw close together each other and stabilize centre gripping filter.

In this embodiment, the pressing portion 32 and the driving member 4 are independent structures, but in other embodiments, the pressing portion 32 and the driving member 4 may be movably connected, or even hinged.

Example two

As shown in fig. 8-12, the present embodiment is different from the first embodiment in that when the driving member 4 translates up and down, the driving member 4 can drive the pressing portion 32 to rotate in the vertical plane.

As shown in fig. 11, the driving member 4 passes through the base 1 and the cover 6 to connect to the fixing portion 2, the outer wall of the driving member 4 is tightly fit and connected to the base 1, and the lower bottom surface of the driving member 4 abuts against the pressing portion 32, but in other embodiments, the driving member 4 and the pressing portion 32 may also be fixedly connected; in an initial state, a flange 49 formed at the lower bottom of the driving part 4 is attached to the inner top surface of the base 1, a gap is formed between one end of the driving part 4 connected with the fixing part 2 and the upper surface of the cover body 6, and the plurality of clamping parts 31 are far away from each other; after placing the filter on fixed part 2, under the action of gravity, or under the combined action of gravity and external force, driving piece 4 overcomes the frictional force downward translation between its outer wall and base 1, lid 6, and the drive is pressed the portion 32 and is rotated in vertical plane for clamping part 31 is close to the filter, forms the clamping action to the filter, and the upper surface contact of lower bottom surface and lid 6 of fixed part 2 is reached to clamping part 31 this moment.

When the filter is not clamped, in order to reset the fixing portion 2 and ensure the stability of the action of the driving member 4, an elastic member may be disposed on the driving member 4, specifically, a tensile elastic member (not shown in the figure) may be sleeved on the driving member 4, one end of the tensile elastic member abuts against the flange 49 of the driving member 4, and the other end of the tensile elastic member abuts against the inner top surface of the base 1. Thus, in the initial state, the stretching elastic member is in a contracted state, when the driving member 4 moves downwards, the stretching elastic member is stretched and unfolded, and when the filter is removed or the external force is stopped to be applied, the stretching elastic member is contracted and reset to pull the driving member 4 upwards.

A compression elastic member (not shown) may be sleeved on the driving member 4, one end of the compression elastic member abuts against the outer surface of the base 1, specifically the cover 6, and the other end of the compression elastic member abuts against the lower bottom surface of the fixing portion 2. Thus, in the initial state, the compression elastic member is in the expanded state, when the driving member 4 moves downwards, the compression elastic member is compressed, and when the filter is removed or the external force is stopped, the compression elastic member expands and returns to push the fixing portion 2 upwards.

Other structures of this embodiment are the same as those of the first embodiment, and are not described again.

The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.

Claims

1. A filter fixing device, comprising:

a base;

a fixing part for connecting the filter;

2. The filter fixing device according to claim 1, wherein: the base is provided with a through groove for the rotating fixing piece to pass through, the base is further provided with a fixing groove for containing the rotating shaft, the fixing groove is crossed with the through groove, and the rotating fixing piece is connected to the base in a rotating mode through the rotating shaft.

3. The filter fixing device according to claim 1 or 2, wherein: the driving part is provided with an inclined surface matched with the pressing part, and the inclined surface drives the pressing part to rotate in a vertical plane when the driving part rotates in the circumferential direction; or the driving piece translates up and down to drive the pressing part to rotate in a vertical plane.

4. A filter fixing device according to claim 3, wherein: and stopping parts for limiting the pressing parts are arranged at two ends of the inclined surface.

5. The filter fixing device according to claim 4, wherein: the inclined surface is also provided with an embedding part used for embedding the pressing part in a clamping way.

6. A filter fixing device according to claim 3, wherein: the pressing portion is connected with the driving portion in an abutting mode, or the pressing portion is hinged to the driving portion.

7. The filter fixing device according to claim 6, wherein: the driving piece is tightly matched and connected with the base;

8. The filter fixing device according to claim 2, wherein: an included angle is formed between the clamping part and the pressing part, and a hole for the rotating shaft to pass through is formed in the clamping part.

9. The filter fixing device according to claim 2 or 8, wherein: the through grooves radially extend by taking the center of the filter as a circle center.

10. The filter fixing device according to claim 1 or 2, wherein: the driving piece penetrates through the base and is connected with the fixing portion.