CN211836675U - Filter - Google Patents

Abstract

The utility model relates to the technical field of filtration, and provides a filter, which comprises a shell with an inner cavity, a base arranged at one end of the inner cavity, a supporting frame arranged on the base, a filter element sleeved on the supporting frame and a cover body covering the other end of the inner cavity, wherein the supporting frame and the filter element are positioned at one side of the base close to the cover body; one end of the support frame is fixed on the base, the other end of the support frame is detachably provided with a blocking cap which is matched with the base to fix the filter element, the base is provided with a first through hole communicated with the inner side of the filter element, and the shell is provided with a first pipeline which is communicated with one end of the cover body and a second pipeline which is communicated with the inner cavity, wherein the first pipeline is far away from the one end of the cover body through the first through. The utility model provides a filter, which adopts a cover body to cover one end of an inner cavity in a shell, a baffle cap and a support frame to fix a filter element, and the inside of the filter can be cleaned after the cover body is opened; after the cover body is opened, the blocking cap is detached, so that the filter element can be taken down, the filter element is convenient to clean and replace, and the filter is convenient to maintain.

Description

Filter

Technical Field

The utility model belongs to the technical field of filter, more specifically say, relate to a filter.

Background

In a process of manufacturing a Printed Circuit Board (PCB), a plurality of chemical solutions are used, and the chemical solutions are generally filtered to remove impurities therefrom. The shell of the existing filter is internally provided with a filter cavity, and the shell is used for clamping and fixing the filter element in the filter cavity. In the use process of the filter, the filter element needs to be cleaned and replaced frequently so as to ensure the normal work of the filter. When the existing filter is cleaned or replaced, the filter element can be taken out only by disassembling the shell from the base, and the filter is extremely inconvenient to maintain due to the fact that the shell of the filter is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filter, including but not limited to the filter of solving among the prior art maintains inconvenient technical problem.

In order to solve the above technical problem, an embodiment of the present invention provides a filter, including a housing having an inner cavity, a base installed at one end of the inner cavity, a support frame installed on the base, a filter element sleeved on the support frame, and a cover body covering the other end of the inner cavity, wherein the support frame and the filter element are located at one side of the base close to the cover body; one end of the support frame is fixed on the base, the other end of the support frame is detachably mounted with the base matched and fixed with the blocking cap of the filter element, the base is provided with a first through hole communicated with the inner side of the filter element, and the shell is provided with a first pipeline communicated with one end of the cover body and a second pipeline communicated with the inner cavity, wherein the first pipeline is far away from the first through hole.

Optionally, the base is removably mounted in the internal cavity.

Optionally, a pull rod is arranged on the base, and the pull rod is located on one side of the base close to the cover body.

Optionally, the supporting frame is cylindrical, and a plurality of second through holes are formed in the supporting frame.

Optionally, one end of the supporting frame, which is far away from the base, is provided with an external thread, and an internal thread matched with the external thread is arranged in the blocking cap.

Optionally, the filter further includes a plurality of screws arranged along the circumferential direction of the housing, one end of each screw is hinged to the housing, a slot is formed in the edge of the cover body and used for placing the other end of each screw, and a fastener is connected to the other end of each screw, which is far away from the housing, in a threaded manner.

Optionally, a snap ring is arranged on the periphery of the housing, and one end of each screw rod is hinged to the snap ring.

Optionally, a plurality of limiting grooves are formed in the clamping ring, an opening of each limiting groove faces the cover body, and the end portion of each screw rod is hinged in the limiting groove.

Optionally, a plurality of the support frames are installed on the base, the filter element and the blocking cap are respectively installed on each support frame, a plurality of first through holes respectively communicated with the inner sides of the filter elements are formed in the base, and one end, far away from the cover body, of each first through hole is communicated with the first pipeline.

Optionally, a support for supporting the cover is provided outside the housing.

The utility model provides a filter, which adopts a cover body to cover one end of an inner cavity in a shell, a baffle cap and a support frame to fix a filter element, and the inside of the filter can be cleaned after the cover body is opened; after the cover body is opened, the blocking cap is detached, so that the filter element can be taken down, the filter element is convenient to clean and replace, and the filter is convenient to maintain.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a filter according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a filter according to an embodiment of the present invention;

fig. 3 is a top view of a filter according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of the base, the filter element, the support frame and the pull rod according to the embodiment of the present invention;

fig. 5 is a cross-sectional view of the base, the stop cap, the support frame and the pull rod according to the embodiment of the present invention;

fig. 6 is a top view of the base, the stop cap, the support frame and the pull rod according to the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

11-shell, 111-first pipeline, 112-second pipeline, 12-lid, 120-fluting, 13-screw rod, 14-fastener, 15-snap ring, 151-spacing groove, 16-support, 161-limiting plate, 1610-trompil, 162-layer board, 21-base, 210-first through-hole, 22-pull rod, 23-support frame, 230-second through-hole, 24-fender cap, 241-cap, 242-first flange, 25-filter core.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, fig. 2 and fig. 4 together, the filter of the present invention will now be described. The filter comprises a shell 11, a base 21, a support frame 23, a filter element 25 and a cover body 12, wherein the shell 11 is provided with an inner cavity, the base 21 is installed at one end of the inner cavity, the support frame 23 is installed on the base 21, the filter element 25 is cylindrical, the filter element 25 is sleeved on the support frame 23, the cover body 12 covers the other end of the inner cavity, and the support frame 23 and the filter element 25 are located on one side, close to the cover body 12, of the base 21. One end of support frame 23 is fixed on base 21, the other end demountable installation of support frame 23 has fender cap 24, keep off cap 24 and the fixed filter core 25 of base 21 cooperation, first through-hole 210 has been seted up on base 21, the one end and the inboard intercommunication of filter core 25 of first through-hole 210, be equipped with first pipeline 111 and second pipeline 112 on the casing 11, the other end intercommunication of lid 12 is kept away from with first through-hole 210 to first pipeline 111, the intercommunication of second pipeline 112 and inner chamber, second pipeline 112 is connected and is corresponded the position between base 21 and the lid 12 on casing 11. When the filter needs to be maintained, the cover body 12 is opened, the blocking cap 24 is removed, the filter element 25 can be detached and installed, and the filter is maintained, so that inconvenience caused by detachment due to large size of the shell 11 is avoided. For a filter with larger volume or a filter with limited moving space of the shell 11, the structure is beneficial to the disassembly and the assembly of the filter, and the maintenance of the filter can be convenient.

Optionally, the base 21 is detachably mounted in the inner cavity, and in the maintenance process, the base 21 can be detached from the inner cavity, so that the base 21, the support frame 23 and the filter element 25 can be taken out conveniently; when the filter element 25 is installed, the filter element 25 can be taken out first, and after the filter element 25 is installed, the base 21 is installed in the inner cavity. When a plurality of filter elements 25 are mounted on the base 21, the plurality of filter elements 25 can be simultaneously taken out of the inner cavity or put into the inner cavity by detaching or mounting the base 21. This avoids movement of the filter housing 11 and facilitates filter removal and maintenance. Specifically, a convex ring supporting base 21 may be provided on the inner wall of the housing 11, or a screw thread may be provided on the inner wall of the housing to be screw-coupled with the base 21.

Further, referring to fig. 1, fig. 4 and fig. 5, a pull rod 22 is disposed on the base 21, and the pull rod 22 is located on a side of the base 21 close to the cover 12. Specifically, the base 21 can be positioned at the bottom of the cavity, and the height of the pull rod 22 is greater than the height of the filter element 25. When the base 21 is detached and installed, the base 21 can be moved by the pull rod 22, so that the base 21 is detached and installed conveniently. The interference of the filter element 25 on the base 21 to the disassembly and assembly of the base 21 is avoided.

In one embodiment, referring to fig. 4 and 5, the supporting frame 23 is cylindrical, a plurality of second through holes 230 are formed on the supporting frame 23, and the second through holes 230 can accommodate the liquid medicine to pass through. After the filter element 25 is sleeved on the support frame 23, the liquid medicine can flow from the outer side of the filter element 25 to the inner side of the support frame 23, so that the liquid medicine is filtered, and the liquid medicine can flow between the first pipeline 111 and the second pipeline 112. Therefore, the support frame 23 can support the inner cavity of the filter element 25 to be opened, and the filtering efficiency of the filter element 25 is improved. Meanwhile, the requirement on the strength (stiffness) of the filter element 25 is lowered, the filter element 25 (such as a bag-type filter element) made of flexible materials can be compatible, and the damage of folds of the filter element 25 in use is avoided. Of course, the support frame 23 may also adopt other structures as long as it can support the filter element 25 and allow the liquid medicine to pass through.

Optionally, referring to fig. 4 and 5, an external thread is disposed at one end of the supporting frame 23 away from the base 21, an internal thread matched with the external thread is disposed in the blocking cap 24, the position of the blocking cap 24 on the supporting frame 23 can be adjusted through the matching of the internal thread and the external thread, the position of the end portion of the filter element 25 is controlled, two ends of the filter element 25 with different lengths are fixed and sealed, and the liquid medicine is prevented from passing through openings at two ends of the filter element 25.

Further, referring to fig. 4 and 5, the blocking cap 24 includes a cap body 241 and a first flange 242, the cap body 241 is connected to an end of the supporting frame 23 away from the base 21, and the first flange 242 is fixed to an end of the cap body 241 close to the base 21. The other end of the support frame 23 connected with the base 21 is provided with a second flange (not shown), and two ends of the filter element 25 are detachably connected with the first flange 242 and the second flange respectively. Specifically, the second flange may be threadedly coupled to the support bracket 23, and the support bracket 23 may be threadedly coupled to the base 21. The cap body 241 can seal the end of the support frame 23 away from the base 21, the first flange 242 seals one end of the filter element 25, and the second flange seals the other end of the filter element 25, so that the two ends of the filter element 25 are prevented from leaking liquid to affect the filtering effect of the filter element 25. When the filter element 25 needs to be detached, the blocking cap 24 can be detached from the support frame 23, and the cap body 241 facilitates the holding of a user, which is beneficial to the detachment and installation of the blocking cap 24. Of course, the end of the filter element 25 close to the base 21 can also directly abut against the base 21; the end of the supporting frame 23 far away from the base 21 can also adopt a closed structure, so that the top of the cap body 241 can also adopt an opening 1610 structure; the stop cap 24 may also be provided as a flange structure that is threadably connected to the support bracket 23.

Specifically, referring to fig. 5, a protruding ring is disposed on a side of the first flange 242 facing the second flange, and a protruding ring is disposed on a side of the second flange facing the first flange 242, or a protruding ring is disposed on the base 21 along the circumferential direction of the supporting frame 23, so as to facilitate positioning and sealing of the filter element 25.

Optionally, the filter element 25 is a cartridge filter element, one end of which abuts against the first flange 242 and the other end of which abuts against the second flange, so that the two ends of the cartridge filter element can be clamped by the first flange 242 and the second flange to seal the two ends of the filter element 25. Of course, the end of the cartridge filter may be directly abutted against the base 21 without providing the second flange.

Optionally, filter element 25 is a bag filter element, one end of which is secured to first flange 242 and the other end of which is secured to the second flange. Specifically, one end of the bag filter element may be clamped between the base 21 and the second flange, so as to fix one end of the bag filter element; a nut is provided at the other end of the support frame 23, and one end of the bag-type filter element is clamped by the nut and the first flange 242. Therefore, the filter can be compatible with bag type filter elements, and the compatibility of the filter with different types of filter elements 25 is improved. Of course, in other embodiments, other ways of securing the ends of the bag-type filter element may be used. One end or two ends of the bag-type filter element are open, and after the bag-type filter element with one open end is sleeved on the support frame 23, the open end can be clamped and fixed by the second flange and the base 21, so that the bag-type filter element is expanded by the support frame 23 in a cylindrical shape; for a bag filter with open ends, the other end of the bag filter is fixed to a first flange 242, and the first flange 242 and a second flange cause the bag filter to expand cylindrically.

Optionally, the filter element 25 is a plate-type filter element, and the plate-type filter element is wound in a cylindrical shape and is sleeved on the support frame 23. One end of the cylinder in which the plate-type filter element is wound abuts against the first flange 242, and the other end of the cylinder in which the plate-type filter element is wound abuts against the second flange. After the plate-type filter element is wound into a cylinder and sleeved on the support frame 23, the support frame 23 can support the inner side of the cylinder to avoid deformation of the inner side of the cylinder, and the two ends of the cylinder are sealed through the first flange 242 and the second flange, so that filtering can be performed. Alternatively, other fasteners 14 (such as rope, silk, etc.) may be used to fix the outer periphery of the cylinder wound with the plate-type filter element, or a cylinder pipe fitting with a through hole may be used to cover the cylinder, and the cylinder wound with the plate-type filter element is clamped between the cylinder pipe fitting and the support frame 23, so as to prevent the filter element 25 from moving outwards. This enables compatibility of the filter with the plate cartridge.

In one embodiment, referring to fig. 1 to 3, the filter further includes a plurality of screws 13, the plurality of screws 13 are disposed along a circumferential direction of the housing 11, one end of each screw 13 is hinged to the housing 11, an opening groove 120 is formed at an edge of the cover 12, the opening groove 120 allows the other end of the corresponding screw 13 to be inserted, and the other end of each screw 13, which is far away from the housing 11, is threadedly connected with a plurality of fasteners 14. When the filter is installed, the cover body 12 covers the upper end of the shell 11, then the screws 13 are turned upwards, so that the other end of each screw 13 rotates into the corresponding slot 120, and then the fastener 14 is screwed down, so that the cover body 12 can be pressed tightly, and the cover body 12 seals the shell 11; when the filter is opened, the cover 12 can be removed by loosening the fasteners 14 and rotating the screw 13 outward of the slot 120. Adopt a plurality of screws 13 and fastener 14 cooperation, can ensure that lid 12 edge and 11 edges of casing are closely laminated, prevent the filter weeping.

Optionally, a sealing element (not shown) is provided between the cover 12 and the housing 11, specifically, the sealing element is a rubber gasket or a silicone gasket, and a ring groove can be opened at the top end of the housing 11, and the sealing gasket is accommodated in the ring groove. This further ensures the sealing of the filter by the seal.

In one embodiment, referring to fig. 1 to 3, a snap ring 15 is disposed on the outer circumference of the housing 11, and one end of each screw 13 is hinged to the snap ring 15. Specifically, the two ends of the snap ring 15 are connected by bolts, and the snap ring 15 is clamped by the cooperation of bolts and nuts, so that the snap ring 15 tightly holds the housing 11. After the bolts are loosened, the position of the clamping ring 15 along the axial direction of the pull rod 22 and the position of the screw 13 on the circumferential direction of the shell 11 can be adjusted, so that the position of the screw 13 can be adjusted according to the installation requirement, and the interference with other parts around the filter in the installation process of the fastening piece 14 is avoided.

Optionally, referring to fig. 1 to 3, the retaining ring 15 is provided with a plurality of limiting grooves 151, an opening of each limiting groove 151 faces the cover 12, and an end of each screw 13 is hinged in the limiting groove 151. The end part of the screw 13 is accommodated in the limiting groove 151 with the opening facing the cover body 12, when the cover body 12 is opened, the screw 13 rotates outwards, and the bottom surface of the limiting groove 151 can stop the screw 13, so that the screw 13 is prevented from colliding with the lower side wall surface of the shell 11. Of course, the retainer ring 15 can also be provided with a stop screw 13; or a convex plate can be arranged on the outer side of the clamping ring, and a limit groove is formed by enclosing the convex plate.

Optionally, referring to fig. 4 to 6, the filter includes a plurality of filter elements 25, a plurality of support frames 23, and a plurality of retaining caps 24, the plurality of support frames 23 are mounted on the base 21, and each support frame 23 is respectively mounted with a filter element 25 and a retaining cap 24. A plurality of first through holes 210 are formed in the base 21, the inner side of each filter element 25 is communicated with the corresponding first through hole 210, and one end of each first through hole 210, which is far away from the cover 12, is communicated with the first pipeline 111. This enables a plurality of filter elements 25 to be mounted in the interior cavity, increasing the filtration efficiency of the filter. Specifically, a plurality of filter elements 25 are arrayed on the base 21 with the pull rod 22 as the center; the side of the base 21 remote from the cover 12 may leave a gap communicating with the first duct 111 through which the first through holes 210 communicate with the first duct 111, or the other end of each first through hole 210 may be disposed toward the first duct 111.

In one embodiment, referring to fig. 1-3, a support 16 is provided outside the housing 11, and the support 16 is used to support the cover 12. During filter maintenance, the detached cover 12 can be placed on the support 16, which facilitates the placement of the cover 12 on the one hand and prevents contamination of the cover 12 on the other hand.

Optionally, referring to fig. 1 to 3, the support 16 includes a limiting plate 161 and a supporting plate 162, the limiting plate 161 is fixed to the outer side of the housing 11, an opening 1610 is formed on the limiting plate 161, the cover 12 can be inserted into the opening 1610, the supporting plate 162 is located at the lower side of the limiting plate 161, and the supporting plate 162 supports the lower side of the cover 12, so as to ensure the stability of the cover 12. Of course, the limiting plate 161 and the supporting plate 162 may be integrally formed with the housing 11.

Optionally, the casing 11 is made by transparent material, and in the filter use, can see through the situation that inside filter core 25 and liquid medicine were observed to casing 11, when the liquid medicine filters, can observe the in service behavior of filter core 25 under the condition of not taking apart the filter, in time discover whether the filter core 25 blocks up the damage, confirm whether the filter core 25 needs to be changed or wash, be convenient for ensure the normal filtration of liquid medicine.

Alternatively, the end of the housing 11 away from the cover 12 is provided with a connecting plate for fixing with an external mounting position, and specifically, the connecting plate may be integrally formed with the housing 11. The shell 11 can be fixed by adopting a connecting plate, so that the filter is convenient to mount.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A filter, characterized by: the filter comprises a shell with an inner cavity, a base arranged at one end of the inner cavity, a support frame arranged on the base, a filter element sleeved on the support frame and a cover body covering the other end of the inner cavity, wherein the support frame and the filter element are positioned at one side of the base close to the cover body; one end of the support frame is fixed on the base, the other end of the support frame is detachably mounted with the base matched and fixed with the blocking cap of the filter element, the base is provided with a first through hole communicated with the inner side of the filter element, and the shell is provided with a first pipeline communicated with one end of the cover body and a second pipeline communicated with the inner cavity, wherein the first pipeline is far away from the first through hole.

2. The filter of claim 1, wherein: the base is detachably mounted in the inner cavity.

3. The filter of claim 2, wherein: the base is provided with a pull rod, and the pull rod is positioned on one side of the base close to the cover body.

4. The filter of claim 1, wherein: the support frame is the tube-shape, a plurality of second through-holes have been seted up on the support frame.

5. The filter of claim 4, wherein: the support frame is kept away from the one end of base is equipped with the external screw thread, be equipped with in the fender cap with external screw thread complex internal thread.

6. The filter of claim 1, wherein: the filter further comprises a plurality of screw rods arranged along the circumferential direction of the shell, one end of each screw rod is hinged to the shell, the edge of the cover body is provided with a slot for the other end of each screw rod to be placed in, and the other end of each screw rod, which is far away from the shell, is in threaded connection with a fastener.

7. The filter of claim 6, wherein: the periphery of the shell is provided with a clamping ring, and one end of each screw rod is hinged to the clamping ring.

8. The filter of claim 7, wherein: a plurality of limiting grooves are formed in the clamping ring, openings of the limiting grooves face the cover body, and the end portions of the screw rods are hinged in the limiting grooves.

9. A filter according to any one of claims 1 to 8, wherein: the base is provided with a plurality of support frames, each support frame is provided with the filter element and the stop cap, the base is provided with a plurality of first through holes communicated with the inner sides of the filter elements, and one end, far away from the cover body, of each first through hole is communicated with the first pipeline.

10. The filter of claim 9, wherein: and a support for supporting the cover body is arranged outside the shell.

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