CN212214789U

CN212214789U - Filter stick

Info

Publication number: CN212214789U
Application number: CN202020851418.4U
Authority: CN
Inventors: 陈雷; 顾蓬飞; 钟铮
Original assignee: Beijing Hengdong Environment Technology Co ltd; Zhejiang Hengdong Environmental Technology Co ltd
Current assignee: Beijing Hengdong Environment Technology Co ltd; Zhejiang Hengdong Environmental Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-12-25
Anticipated expiration: 2030-05-20

Abstract

The utility model belongs to the technical field of filtration equipment, for the filter area who improves the filter rod, the utility model discloses a filter rod of brand-new structural style. The filter stick comprises a supporting framework, a plurality of filter discs, an upper connector and a lower connector; the cross section of the supporting framework is of a multi-branch structure and is prepared by adopting an extrusion molding process of a plastic material, the filter disc is of an annular structure and is provided with a radial overflowing hole, and the plurality of filter discs are sequentially sleeved on the supporting framework; the lower end face of the upper connector is provided with a plurality of upper clamping grooves, the upper end face of the lower connector is provided with a plurality of lower clamping grooves, and the distribution positions of the upper clamping grooves and the lower clamping grooves correspond to the multi-branch positions in the supporting framework; two ends of the supporting framework are respectively connected with the upper joint and the lower joint in an inserting manner through the upper clamping groove and the lower clamping groove. The utility model discloses a filter rod can realize the biggest filter area, improves filtration efficiency.

Description

Filter stick

Technical Field

The utility model belongs to the technical field of filtration equipment, concretely relates to filter rod.

Background

Chinese patent No. 201821654306.9 entitled wedge-shaped filter element and filter discloses a filter element that can be used in a filter. This filter core mainly comprises support chassis and a plurality of filter element to support chassis is cylindricality frame construction, wherein according to the demand of filter to whole filter core length, can form the connection in proper order to a plurality of support chassis with the help of the nut, thereby obtains the filter core of different length, satisfies the installation of not unidimensional filter and uses.

However, in the process of manufacturing and using the filter element with the structure, the support frame adopts a cylindrical frame structure, the processing length of a single support frame is limited, so that the use length requirement of the filter element is met by sequentially connecting a plurality of nuts, the use length requirement of the filter element is met, but the use surface area of the filter element is occupied by the plurality of nuts, and in practical application, the connection stability of the nuts to the two support frames and the fixation stability of the filter element are considered, the selection size of the nuts is large, and even the selection size of the nuts occupies about 20% of the surface area of the whole filter element, so that the filtering efficiency of the whole filter element is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the nut is used to support the framework connection and occupy the filter element surface, resulting in the reduction of the filter element filtration efficiency, the utility model provides a filter rod of brand-new structural style. The filter stick comprises a supporting framework, a plurality of filter discs, an upper connector and a lower connector; the cross section of the support framework is of a multi-branch structure and is prepared by adopting an extrusion molding process of a plastic material, the filter disc is of an annular structure and is provided with a radial overflowing hole, and the plurality of filter discs are sequentially sleeved on the support framework; the lower end face of the upper joint is provided with a plurality of upper clamping grooves, the upper end face of the lower joint is provided with a plurality of lower clamping grooves, and the distribution positions of the upper clamping grooves and the lower clamping grooves correspond to the multi-branch positions in the supporting framework; and two ends of the supporting framework are respectively connected with the upper clamping groove and the lower clamping groove in an inserted manner.

Preferably, the support framework is connected with the upper joint and the lower joint through screws; the axis position of support skeleton is equipped with the fixed orifices, the axis position of top connection is equipped with the connecting hole, the axis position of bottom connection is equipped with down the connecting hole, the screw passes through go up the connecting hole with the fixed orifices forms to the top connection with support skeleton's connection, the screw passes through down the connecting hole with the fixed orifices forms to the bottom connection with support skeleton's connection.

Further preferably, the fixing hole, the upper connecting hole and the lower connecting hole are all of a unthreaded hole structure, and the screw is a self-tapping screw.

Further preferably, the diameter size of the upper connection hole and the diameter size of the lower connection hole are larger than the thread diameter size of the screw and smaller than the nut diameter size of the screw.

Preferably, the cross section of the supporting framework adopts a three-branch structure, three upper clamping grooves are formed in the lower end face of the upper connector, and three lower clamping grooves are formed in the upper end face of the lower connector.

Preferably, the upper end of the upper connector is provided with a connecting thread for mounting with the filter.

Preferably, the upper end of the upper joint is provided with a connecting flange for mounting with the filter.

Preferably, the upper joint and the lower joint are made of plastic and are prepared by injection molding.

The utility model discloses a filter rod compares with current filter core, has following beneficial effect:

1. the utility model discloses in, through will supporting the skeleton and design for many troubles structure to utilize extrusion molding technology to carry out the preparation that supports the skeleton, can once only accomplish the preparation that different length supported the skeleton, and establish a plurality of filter discs after supporting the skeleton in proper order cover, utilize the top connection of seting up the draw-in groove and set up the lower clutch of draw-in groove down and be connected with the both ends that support the skeleton, form the location fixed to the filter disc. Therefore, the support framework with different lengths can be prepared at one time, the preparation requirements of filter rods with different lengths are met, the occupation of a filter area when a plurality of filter rods are spliced by using nuts can be omitted, the filter disc is kept between the upper joint and the lower joint of the whole filter rod, the maximum filter area is achieved, and the filter efficiency of the whole filter rod is improved.

2. The utility model discloses in, support the fixed connection of skeleton and top connection and lower clutch through utilizing self-tapping screw to with the connecting aperture design in top connection and the lower clutch for being greater than the screw thread diameter size of screw and being less than the nut diameter size of screw. At the moment, the thread part of the screw can directly penetrate through the upper joint and the lower joint to be in threaded connection with the fixing hole of the supporting framework, and the nut part of the screw presses and fixes the upper joint and the lower joint, so that the connection of the upper joint and the lower joint with the supporting framework is completed. Therefore, the tapping operation of the fixing hole in the supporting framework and the connecting holes in the upper joint and the lower joint is omitted, the processing operation amount is reduced, the processing cost is reduced, the threaded connection between the screw and the upper joint and the lower joint is also omitted, and the convenience of the screw in connection with the supporting framework, the upper joint and the lower joint is improved.

Drawings

FIG. 1 is a schematic structural diagram of the shape of a filter stick in the embodiment;

FIG. 2 is a schematic structural diagram of the filter stick of the embodiment after the filter disc is removed;

FIG. 3 is a schematic cross-sectional view of the filter rod of this embodiment with the filter disc removed;

FIG. 4 is a schematic view of the external structure of the supporting framework in this embodiment;

FIG. 5 is a schematic diagram of the external structure of the upper joint in this embodiment;

fig. 6 is a schematic structural diagram of the lower joint in this embodiment.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the filter plug of the present embodiment includes a support frame 1, a plurality of filter sheets 2, an upper joint 3, and a lower joint 4. The cross section of the supporting framework 1 is of a three-branch structure and is prepared by adopting a plastic extrusion molding process at one time. The filter disc 2 is an annular structure and is provided with a radial overflowing hole, and the plurality of filter discs 2 are sequentially sleeved on the support framework 1. The lower end face of the upper joint 3 is provided with three upper clamping grooves 31, the upper end face of the lower joint 4 is provided with three lower clamping grooves 41, the distribution positions of the three upper clamping grooves 31 and the distribution positions of the three lower clamping grooves 41 correspond to the three-fork position of the support framework 1, therefore, two ends of the support framework 1 can be respectively connected with the upper joint 3 and the lower joint 4 through the upper clamping grooves 31 and the lower clamping grooves 41 in an inserted manner, and the upper joint 3 and the lower joint 4 can axially position and fix the plurality of filter discs 2.

At the moment, the supporting framework is designed to be a plastic three-branch structure, so that the supporting framework can be prepared to be required length at one time by using an extrusion molding process, and the preparation of the whole filter rod can be rapidly completed by using the upper joint and the lower joint to be connected with the two ends of the supporting framework in an inserting manner. Therefore, the disposable preparation of the support frameworks with different lengths can be realized, the preparation requirements of filter rods with different lengths are met, filter discs can be arranged between the upper joint and the lower joint of the whole filter rod, the maximum filtering area is achieved, and the filtering efficiency of the whole filter rod is improved.

In this embodiment, the upper joint and the lower joint are made of plastic, such as PE, and are manufactured by injection molding or stamping, so that the manufacturing cost of the upper joint and the lower joint can be reduced, and the manufacturing efficiency thereof can be improved. Similarly, in other embodiments, the materials of the upper joint, the lower joint and the support framework can be adjusted according to different use conditions of the filter stick, so that the use requirements of different working conditions are met.

In the embodiment, the support framework is designed into a three-fork structure, and the flow passage can be formed by utilizing the gap between adjacent forks.

Preferably, in this embodiment, adopt screw 5 to carry out detachable fastening connection between support chassis 1 and top connection 3 and the lower clutch 4, improve the fastness of top connection and lower clutch and support chassis connection, be convenient for simultaneously support the quick assembly disassembly between skeleton and top connection and the lower clutch, improve the installation effectiveness. Wherein, the axis position of the supporting framework 1 is provided with a fixing hole 11, the axis position of the upper joint 3 is provided with an upper connecting hole 32, and the axis position of the lower joint 4 is provided with a lower connecting hole 42. At this time, the fastening connection between the upper joint 3 and the support frame 1 can be formed by the connection of the screw 5 to the upper connection hole 32 and the fixing hole 11, and the fastening connection between the lower joint 4 and the support frame 1 can be formed by the connection of the screw 5 to the lower connection hole 42 and the fixing hole 11.

Further preferably, in the present embodiment, the fixing hole 11, the upper connection hole 32, and the lower connection hole 42 are all designed to be of a unthreaded hole structure, and the screw 5 is a self-tapping screw. At this time, when the tapping screw is screwed into the hole, the internal thread connected with the screw is formed by the displacement of the material abutting on the periphery of the hole and the pushing of the material into the gap between the threads, so that the thread fixing connection of the upper joint and the lower joint with the support frame can be directly realized, the processing operation of additionally tapping the fixing hole and the upper connecting hole and the lower connecting hole is omitted, and the manufacturing cost is further reduced.

Further, in the present embodiment, both the diameter size of the upper connection hole 32 and the diameter size of the lower connection hole 42 are designed to be larger than the thread diameter size of the screw 5 and smaller than the nut diameter size of the screw 5. Therefore, the thread part of the screw can directly penetrate through the upper joint and the lower joint to form threaded connection with the fixing hole of the supporting framework, and the nut part of the screw is used for pressing and fixing the upper joint and the lower joint, so that the connection of the upper joint and the lower joint with the supporting framework is completed, the threaded connection between the screw and the upper joint and the lower joint is omitted, the connection mode between the self-tapping screw and the upper joint and the lower joint is optimized, and the convenience in installation is improved.

As shown in fig. 1 and 5, the upper end of the upper joint 3 of the present embodiment is further provided with a connecting screw thread 33 for mounting and fixing the filter with a mounting structure, such as a rib plate, in a screw connection manner. Similarly, in other embodiments, the upper end of the upper joint may be designed into a connecting flange according to different filter stick installation modes, so as to meet the flange type connecting installation.

As shown in fig. 3 and 5, a positioning table 34 is further provided inside the upper joint 3. The cross-sectional shape of the positioning table 34 corresponds to the cross-sectional shape of the support framework 1, and is used for positioning the position where the support framework 1 is inserted into and connected with the upper clamping groove 31, so that the mounting accuracy of the support framework and the upper joint is improved. Meanwhile, the positioning table 34 can be used for laying the upper connecting holes 31.

Claims

1. A filter stick is characterized by comprising a supporting framework, a plurality of filter discs, an upper joint and a lower joint; the cross section of the support framework is of a multi-branch structure and is prepared by adopting an extrusion molding process of a plastic material, the filter disc is of an annular structure and is provided with a radial overflowing hole, and the plurality of filter discs are sequentially sleeved on the support framework; the lower end face of the upper joint is provided with a plurality of upper clamping grooves, the upper end face of the lower joint is provided with a plurality of lower clamping grooves, and the distribution positions of the upper clamping grooves and the lower clamping grooves correspond to the multi-branch positions in the supporting framework; and two ends of the supporting framework are respectively connected with the upper clamping groove and the lower clamping groove in an inserted manner.

2. The filter rod according to claim 1, wherein the support framework is fixedly connected with the upper connector and the lower connector through screws; the axis position of support skeleton is equipped with the fixed orifices, the axis position of top connection is equipped with the connecting hole, the axis position of bottom connection is equipped with down the connecting hole, the screw passes through go up the connecting hole with the fixed orifices forms to the top connection with the fastening connection of support skeleton, the screw passes through the lower connecting hole with the fixed orifices forms to the bottom connection with the fastening connection of support skeleton.

3. The filter stick according to claim 2, wherein the fixing holes, the upper connecting holes and the lower connecting holes are all of a smooth hole structure, and the screws are self-tapping screws.

4. The filter stick according to claim 3, wherein the diameter size of the upper connecting hole and the diameter size of the lower connecting hole are larger than the thread diameter size of the screw and smaller than the nut diameter size of the screw.

5. The filter stick according to any one of claims 1 to 4, wherein the cross section of the support framework adopts a three-branch structure, the lower end surface of the upper connector is provided with three upper clamping grooves, and the upper end surface of the lower connector is provided with three lower clamping grooves.

6. A filter rod according to any one of claims 1 to 4 wherein the upper end of the upper connector is provided with a connecting thread for attachment to a filter.

7. A filter rod according to any one of claims 1 to 4 wherein the upper end of the upper connector is provided with a connecting flange for mounting with a filter.

8. A filter rod according to any one of claims 1 to 4, wherein the upper and lower connectors are of plastics material and are injection moulded.