CN212594197U

CN212594197U - Filter

Info

Publication number: CN212594197U
Application number: CN202020887132.1U
Authority: CN
Inventors: 贾建东; 柯文静; 张文鑫
Original assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Current assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-02-26
Anticipated expiration: 2030-05-22
Also published as: TWM622022U

Abstract

The utility model relates to a filter, it includes filter unit and anchor clamps, filter unit includes the shell, be located the inside filter core of shell, and be located two joints at shell both ends, anchor clamps include the anchor clamps main part, and be located two interface parts at anchor clamps main part both ends, two joints of filter unit form detachable sealing connection with two interface parts of anchor clamps respectively, at least one interface part includes the pipe fitting with split type supply, the hollow inside runner that constitutes this interface part of this hollow of pipe fitting of this split type supply, a tip of pipe fitting forms sealing connection with one of filter unit's joint, another tip and outside pipeline of pipe fitting form sealing connection, thereby communicate filter unit's inside and outside pipeline. The pipe fitting provided in a split type is in direct contact with liquid, and only the pipe fitting is made of a material with better tolerance performance, so that the cost can be reduced; in addition, for different external pipelines, the structure of the pipe fitting is only required to be correspondingly adjusted, and the adaptability of the interface part is improved.

Description

Filter

Technical Field

The utility model relates to a filter technical field, especially a filter.

Background

Chinese patent No. CN1315559C provides a fluid separation assembly comprising a separation unit and a manifold, the separation unit comprising a housing, a separation device (filter element) located inside the housing, and an inlet and an outlet located at both ends of the housing, the manifold comprising a first part communicating with the inlet and a second part communicating with the outlet. As shown in the accompanying drawings, the first and second parts of the manifold each have an integrally formed fluid passage, and the inlet and outlet of the separation unit communicate with external piping via the fluid passages of the first and second parts for the inflow of the raw material liquid and the outflow of the clean filtrate.

The separation assembly is often used for filtering corrosive fluids, and the side walls of the fluid channel are the portions that need to be in direct contact with the fluid, and therefore the side walls of the fluid channel need to be made of a corrosion resistant material such as PTFE. Since the fluid passages are integrally formed in the first and second portions of the manifold, the entire first and second portions of the manifold need to be made of PTFE material, which is expensive and the manufacturing cost of the manifold is significantly increased.

In addition, the inlet and the outlet of the separation unit are communicated with an external pipeline through one end of the fluid channel of the first part and one end of the fluid channel of the second part, and the communication mode is realized by connecting a pipe at the periphery of the other end of the fluid channel in a sealing way, and specifically comprises the following steps: the periphery of the other end of the fluid channel comprises external threads and a sealing part used for sealing the sleeved pipe, the pipe is sleeved on the periphery of the sealing part, and then the pipe is screwed up through a screw cap to form sealing. When the fluid separation module is used for processing high-temperature fluids, such as fluids with temperatures higher than 120 ℃, the external threads and the sealing part at the other end of the fluid channel must be capable of withstanding high-temperature conditions, in other words, when fluids with different temperature ranges need to be processed, the structure of the sealing part at the periphery of the other end of the fluid channel needs to be changed correspondingly, and the fluid channel is integrally formed on the first part and the second part of the manifold, accordingly, when the first part and the second part of the corresponding manifold are needed to be provided, namely, when fluids with different temperature sections are processed in a filtering mode, the manifold capable of meeting the temperature conditions needs to be provided respectively, so that the adaptability of the manifold is poor.

Therefore, it is desirable to provide a filter that solves the problems of high manufacturing cost and poor adaptability of its manifold.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reach the purpose provides a filter to solve the high and poor problem of suitability of manifold's manufacturing cost of manifold.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a filter comprises a filter unit and a clamp which is used for clamping the filter unit and communicated with the filter unit;

the filter unit comprises a shell, a filter element positioned in the shell and two joints positioned at two ends of the shell;

the clamp comprises a clamp main body and two interface parts positioned at two ends of the clamp main body, wherein the two interface parts are respectively in detachable sealing connection with the two joints;

at least one of the connecting parts comprises a pipe provided in a split type, the hollow interior of the pipe forms a flow channel of the connecting part, one end part of the pipe is in sealing connection with one connector of the filtering unit, and the other end part of the pipe is in sealing connection with an external pipeline, so that the interior of the filtering unit is communicated with the external pipeline.

The utility model provides a filter, it includes filter unit and anchor clamps, two joints of filter unit form detachable sealing connection with two interface parts of anchor clamps respectively, wherein, at least one interface part includes the pipe fitting with split type supply, and the hollow inside of this split type pipe fitting that provides constitutes the runner of this interface part, and a tip of pipe fitting forms sealing connection with a joint of filter unit, and another tip and the outside pipeline of pipe fitting form sealing connection to communicate filter unit's inside and outside pipeline. In the filter, the filtering unit is communicated with an external pipeline through the pipe fitting which is provided in a split mode and is arranged at the connecting part, because the pipe fitting is in direct contact with liquid, different liquids to be filtered have different requirements on the properties of cleanliness, corrosion resistance, heat resistance and the like of materials, and only the pipe fitting which is provided in a split mode is made of materials with better properties of cleanliness, corrosion resistance, heat resistance and the like, so that the cost is reduced; on the other hand, when the connector is connected with external pipelines with different structures, the pipe fitting needs to be provided with a corresponding matched connecting structure, and when the connector is designed, the corresponding pipe fitting is replaced by correspondingly adjusting the connecting structure of the pipe fitting, namely under different working conditions, the other parts of the connector are made into standard parts, and the adaptability of the connector is improved.

Furthermore, the connecting port comprises an end block, a mounting hole for mounting a pipe fitting is formed in the end block, a sealing surface is formed at one end of the pipe fitting, and a sealing ring matched with the sealing surface is arranged on a corresponding joint of the filtering unit.

The connecting port comprises an end block, wherein the end block is provided with a mounting hole, and the pipe fitting is fixed and mounted through the mounting hole in the end block; one end of the pipe fitting is provided with a sealing surface, and a corresponding joint of the filtering unit is provided with a sealing ring which is matched with the sealing surface to form sealing.

Furthermore, the mounting hole is a through hole, a step surface is arranged on the pipe fitting, the step surface matched with the step surface of the pipe fitting is arranged in the through hole, and the pipe fitting is provided with an external connection part which penetrates out of the outer end of the through hole and is connected with an external pipeline; or, the mounting hole is the through-hole, the pipe fitting includes adaptor and the external part with split type provides, adaptor seal installation is in the through-hole, sealed face is located the inboard tip of the orientation through-hole of adaptor, the one end of external part is connected in the through-hole, and the other end is located the outer end of through-hole so that be connected with outside pipeline, the hollow inside of adaptor and the hollow inside of external part form the fluid intercommunication of imperviousness to constitute the runner of this interface portion.

The mounting hole is a through hole, a step surface is arranged on the pipe fitting, and a step surface matched with the step surface of the pipe fitting is arranged in the through hole, namely the pipe fitting and the through hole are fixed and matched through the step surface between the pipe fitting and the through hole; the pipe fitting is provided with an external connecting part penetrating out of the outer end of the through hole, and the external connecting part is in sealing connection with an external pipeline.

Or the pipe fitting comprises an adapter and an external piece which are provided in a split mode, the adapter is arranged in the through hole in a sealing mode, one end of the external piece is connected into the through hole, the other end of the external piece is located at the outer end of the through hole and is connected with an external pipeline conveniently, liquid-tight fluid communication is formed between the hollow interior of the adapter and the hollow interior of the external piece, therefore, a flow channel of the interface part is formed, the external piece can be detached only when necessary, and the operation is more convenient.

Furthermore, the sealing surface is an annular plane, the sealing ring is positioned on the tail end surface of the joint of the filtering unit, and after the filtering unit is installed, the sealing ring is axially pressed by the annular plane-shaped sealing surface to form sealing.

The sealing surface is an annular plane, the sealing ring is positioned on the tail end surface of the joint of the filtering unit, and after the filtering unit is installed, the sealing ring is axially pressed by the annular plane-shaped sealing surface to form sealing; the annular plane-shaped sealing surface is matched with the tail end surface of the sealing ring, so that the sealing ring is convenient to process and manufacture on the premise of ensuring reliable sealing with the sealing ring.

Further, the joint comprises an extension integrally formed at one end of the filter unit and a flange-like seal portion located at the end of the extension, the end of the seal portion has a groove, and the seal ring is located in the groove.

The joint comprises an extension part and a flange-shaped sealing part, wherein the extension part is integrally formed at one end part of the filtering unit, the flange-shaped sealing part is positioned at the tail end of the extension part, the tail end of the sealing part is provided with a groove, a sealing ring is positioned in the groove, the flange-shaped sealing part is arranged in the groove at the tail end of the sealing part, and the sealing ring and the annular plane-shaped sealing surface form reliable sealing.

Furthermore, the connecting part also comprises a pipe support positioned at the inner side of the end block, a clamping groove is formed in a gap between the front end of the end block and the front end of the pipe support, after the filter unit is installed, the flange-shaped sealing part is clamped in the clamping groove, and the pipe support supports the extending part.

Furthermore, one end surface of the flow passage is in transitional connection with the annular plane-shaped sealing surface through a conical surface; alternatively, the tubular element further comprises a lead-in surface at the front end of the annular planar sealing surface, the lead-in surface extending obliquely outward from the connection with the annular planar sealing surface.

One end surface of the flow channel is in transitional connection with the annular planar sealing surface through the conical surface, so that the sealing ring can be matched with the annular planar sealing surface quickly to form sealing, and meanwhile, the abrasion of the sealing ring can be reduced.

The pipe fitting further comprises a leading-in surface positioned at the front end of the annular plane-shaped sealing surface, the leading-in surface is formed by extending outwards in an inclined mode from the connecting position of the leading-in surface and the annular plane-shaped sealing surface, the leading-in surface guides the movement of the joint and the sealing ring, the extrusion acting force applied to the sealing ring is gradually increased in the process that the joint and the sealing ring move from the front end of the leading-in surface to the rear end of the leading-in surface, the sealing ring slides over the leading-in surface and then reaches the annular plane-shaped sealing surface. When the filter unit is disassembled, the joint and the sealing ring move to the front end of the leading-in surface from the rear end of the leading-in surface, the extrusion acting force applied to the sealing ring is gradually reduced, and the disassembly is more labor-saving.

Furthermore, the sealing surface is a circumferential curved surface, the sealing ring is located on the periphery of the end portion of the joint of the filtering unit, and after the filtering unit is installed, the sealing ring is circumferentially extruded between the periphery of the end portion of the joint and the circumferential curved surface to form sealing.

The sealing surface is a circumferential curved surface, the sealing ring is positioned on the periphery of the end part of the joint of the filtering unit, and after the filtering unit is installed, the circumferential curved surface forms a circumferential extrusion acting force on the sealing ring and the periphery of the end part of the joint, so that the reliable sealing effect between the joint and the pipe fitting is ensured.

Further, the joint includes an extension integrally formed at one end of the filter unit and a spherical sealing portion located at a distal end of the extension, and the sealing ring is fixed to an outer circumference of the sealing portion.

The joint comprises an extension part and a spherical sealing part, wherein the extension part is integrally formed at one end part of the filtering unit, the spherical sealing part is positioned at the tail end of the extension part, the spherical sealing part is accommodated in the circumferential curved surface, and the sealing ring is fixed on the periphery of the sealing part and is subjected to circumferential extrusion action between the circumferential curved surface and the spherical sealing part, so that reliable sealing is formed.

Further, one side of pipe fitting is equipped with the valve, the valve is including the valve body that has interior passageway and be located valve body one side, be used for rotating the valve rod of valve body, valve body seal installation is in the runner of pipe fitting.

One side of the pipe is provided with a valve including a valve body having an inner passage and a valve stem positioned at one side of the valve body for rotating the valve body, the valve body is sealingly installed in a flow passage of the pipe, and the valve is used for rapidly connecting and disconnecting the pipe to facilitate replacement of the filter unit.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of a filter provided in embodiment 1 of the present invention;

fig. 2 is a cross-sectional view of a filter according to embodiment 1 of the present invention;

FIG. 3 is a cross-sectional view of the filter unit of FIGS. 1 and 2;

FIG. 4 is a front view of the clamp of FIGS. 1 and 2;

FIG. 5 is a cross-sectional view of the clamp of FIGS. 1 and 2;

FIG. 6 is a cross-sectional view of the end block of the first interface portion of FIGS. 4 and 5;

FIGS. 7 and 8 are isometric and cross-sectional views, respectively, of the tube of the first interface of FIGS. 4 and 5;

figure 9 is a cross-sectional view of the tube provided in figures 6-8 after it has been secured to the end block;

FIG. 9A is an enlarged view of a portion of FIG. 9 at A;

fig. 10 is a cross-sectional view of a filter clamp according to embodiment 2 of the present invention;

FIG. 11 is a cross-sectional view of the end block of the first interface portion of FIG. 10;

FIGS. 12 and 13 are isometric and cross-sectional views, respectively, of a tube of the first interface of FIG. 10;

figure 14 is a cross-sectional view of the tube provided in figures 11-13, after it has been secured to the end block;

fig. 15 is a cross-sectional view of a filter according to example 3 of the present invention;

FIG. 16 is a cross-sectional view of the clamp of FIG. 15;

FIG. 17 is a front view of the filter unit of FIG. 15;

FIG. 18 is a cross-sectional view of the filter unit of FIG. 15;

FIG. 19 is a cross-sectional view of the tube of the first interface of FIGS. 15 and 16;

FIG. 20 is a cross-sectional view of the end block of the first interface portion of FIG. 16;

figure 21 is a cross-sectional view of the fitting of figure 19 installed in the end block of figure 20;

FIG. 22 is a schematic view of a partial assembly of a second tubular member of the second interface shown in FIG. 16;

figure 23 a cross-sectional view of a filter provided in example 4 of the present invention;

FIG. 24 is a cross-sectional view of the filter unit of FIG. 23;

FIG. 25 is a cross-sectional view of the clamp of FIG. 23;

FIG. 26 is a cross-sectional view of the first interface portion of FIG. 25 with the tubing and valve secured in the end block;

FIG. 27 is a cross-sectional view of the end block of the first interface portion of FIG. 25;

FIG. 28 is a cross-sectional view of the valve of FIG. 26;

FIG. 29 is a cross-sectional view of a second tube member of the second interface portion of FIG. 25;

fig. 30 is a sectional view of the second end block of the second connecting port portion in fig. 25.

In the figure, 1-filtration unit, 10-housing, 11-first joint, 111-extension, 112-sealing part, 113-groove, 12-second joint, 121-extension two, 122-sealing part two, 123-groove two, 124-slot, 125-mounting groove, 126-baffle, 127-baffle two, 2-clamp, 21-clamp body, 22-first interface part, 221-end block, 222-tube holder, 223-mounting hole, 224-leading-in surface, 23-second interface part, 231-end block two, 232-tube holder two, 233-mounting hole two, 24-tube, 24A-adapter, 24B-external component, 24C-sealing part, 241-sealing surface, 242-external component, 243-conical surface, 244-leading-in surface II, 25-pipe fitting II, 25A-adapter part, 25B-rotating shaft, 25C-external connecting piece II, 25D-handle, 250-receiving groove, 251-external connecting part II, 252-sealing surface II, 26-clamping groove, 27-clamping groove II, 3-sealing ring, 4-valve, 40-valve body and 41-valve rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Example 1

The filter shown in fig. 1 and 2 includes a filter unit 1 and a clamp 2 for clamping and communicating with the filter unit 1.

As shown in fig. 3, the filter unit 1 includes a housing 10, a filter element (not shown) located inside the housing 10, and a first joint 11 and a second joint 12 located at two ends of the housing 10, wherein at least one of the first joint 11 and the second joint 12 is provided with a sealing ring 3 at its end, and in this embodiment, the sealing ring 3 is provided at both the end of the first joint 11 and the end of the second joint 12.

The first joint 11 includes an extension portion 111 and a flange-like seal portion 112 formed at a distal end of the extension portion 111, the distal end of the seal portion 112 has a groove 113, and the seal ring 3 is located in the groove 113.

The second joint 12 comprises a second extension part 121 and a second flange-shaped sealing part 122 formed at the tail end of the second extension part 121, the tail end of the second sealing part 122 is provided with a second groove 123, and the sealing ring 3 is positioned in the second groove 123.

As shown in fig. 4-9 a, the clamp 2 includes a clamp main body 21, and a first interface portion 22 and a second interface portion 23 at two ends of the clamp main body 21, wherein the first interface portion 22 and the second interface portion 23 are detachably and hermetically connected with the first joint 11 and the second joint 12, respectively.

At least one of the first and

second interfaces

22, 23 comprises a tube provided in a split manner, i.e. one of the tubes is integrally formed in one of the first and

second interfaces

22, 23, and the other tube is provided in a split manner and fixedly mounted to the other of the first and

second interfaces

22, 23.

In this embodiment, the first connecting port 22 and the second connecting port 23 respectively include a pipe 24 and a pipe 25 provided in a split manner, hollow interiors of the pipe 24 and the pipe 25 respectively constitute flow passages of the first connecting port 22 and the second connecting port 23, one end of the pipe 24 and one end of the pipe 25 are respectively in sealed connection with the first connector 11 and the second connector 12 of the filter unit 1, and the other end is in sealed connection with an external pipeline, so that the internal pipeline and the external pipeline of the filter unit 1 are communicated.

Specifically, the first connecting port 22 includes an end block 221, the end block 221 is provided with a mounting hole 223 for mounting the pipe 24, one end of the pipe 24 has a sealing surface 241, and the sealing surface 241 is matched and sealed with the sealing ring 3 at the end of the first joint 11 of the filter unit 1. Preferably, the sealing surface 241 is an annular flat surface, and after the filter unit 1 is installed, the sealing ring 3 at the end of the first joint 11 is axially pressed by the annular flat sealing surface 241 to form a seal.

The mounting hole 223 is a through hole, a step surface is provided on the pipe 24, a step surface matched with the step surface of the pipe 24 is provided in the through hole, the pipe 24 further has an external connection portion 242 penetrating through the outer end of the through hole and connected with an external pipeline, and the external connection portion 242 includes a portion for connecting with a pipe and an external thread. When the pipe fitting 24 is mounted, the pipe fitting 24 is inserted through the through hole from the inner side of the end block 221, the step surface of the pipe fitting 24 contacts and engages with the step surface in the through hole, and the external connection portion 242 extends out of the outer end of the through hole. The inner side of the end block 221 refers to its side facing the filter unit 1.

The front end of the mounting hole (through hole) 223 facing the filter unit 1 further includes an introduction surface 224 formed to extend obliquely outward, and after the pipe member 24 is fixed to the mounting hole 223, the front end of the annular flat sealing surface 241 is in close abutment with and overlaps the rear end of the introduction surface 224. Alternatively, the introduction surface 224 may be tapered so as to extend obliquely around the entire periphery of the attachment hole 223 toward the filter unit 1, and when the pipe 24 is fixed to the attachment hole 223, the corresponding end of the annular flat sealing surface 241 and the corresponding end of the tapered introduction surface 224 are also abutted and overlapped.

The introduction surface 224 guides the movement of the first coupling 11 and the seal ring 3, and the pressing force applied to the seal ring 3 gradually increases as the first coupling 11 and the seal ring 3 move from the front end of the introduction surface 224 to the rear end of the introduction surface 224, and the seal ring 3 slides over the introduction surface 224 and reaches the annular flat seal surface 241, thereby forming a reliable seal. When the filter unit 1 is disassembled, the extrusion acting force applied to the sealing ring 3 is gradually reduced in the process that the first joint 11 and the sealing ring 3 move from the rear end of the leading-in surface 224 to the front end of the leading-in surface 224, and the disassembly is more labor-saving.

The front end of the introduction surface 224 refers to its end away from the jig main body 21, and the rear end of the introduction surface 224 refers to its end close to the jig main body 21.

In order to facilitate the rapid matching of the sealing ring 3 with the annular planar sealing surface 241, and to form a seal, and at the same time to reduce the wear of the sealing ring 3, an end surface of the flow channel inside the pipe 24 is in transitional connection with the annular planar sealing surface 241 by means of a conical surface 243.

In addition, in order to facilitate the installation of the filter unit 1 and to better fix the first joint 11 after the installation, the first connecting part 22 further includes a pipe bracket 222 located inside the end block 221, a slot 26 is formed by a gap between the front end of the end block 221 and the front end of the pipe bracket 222, after the installation of the filter unit 1 is completed, the flange-shaped sealing part 112 is clamped in the slot 26, the pipe bracket 222 supports the extension part 111, and the sealing ring 3 is pressed in the axial direction by the annular planar sealing surface 241 to form a seal.

The front end of the end block 221 and the front end of the tube holder 222 refer to the ends of the end block 221 and the tube holder 222 away from the jig main body 21.

In addition, in order to facilitate the connection or disconnection of the filter unit 1 with an external pipeline, a valve is further provided on one side of the pipe 24, the valve includes a valve body having an internal passage and a valve rod located on one side of the valve body for rotating the valve body, and the valve body is sealingly installed in a flow passage of the pipe 24.

The second connecting port portion 23 includes a second end block 231 having a specific structure similar to that of the first connecting port portion 22, and the second end block 231 also has a mounting hole for mounting the second pipe 25, and the mounting hole is also a through hole.

The structure of the second pipe element 25 is the same as that of the pipe element 24, the second pipe element 25 is provided with a step surface, and the through hole of the second end block 231 is internally provided with a step surface matched with the step surface of the second pipe element 25. One end of the second pipe 25 has a sealing surface for sealing with the sealing ring 3 at the end of the second connector 12 of the filter unit 1. Preferably, the sealing surface is also an annular plane, and after the filter unit 1 is installed, the sealing ring 3 at the end of the second joint 12 is pressed axially by the annular plane sealing surface to form a seal. The second pipe 25 also has an external part which penetrates through the outer end of the through hole and is connected with an external pipeline, and the external part comprises a part for connecting with a pipe and an external thread. Similar to the pipe 24, the second pipe 25 may also be provided with a valve to facilitate connection or disconnection of the filter unit to external piping.

The through hole of the second end block 231 also has an introduction surface toward the front end of the filter unit 1, and this introduction surface has the same configuration as the introduction surface 224 of the end block 221. Alternatively, it may be tapered around the entire periphery of the through-hole on the side facing the filter unit 1. One end surface of the flow passage in the second pipe fitting 25 is also in transition connection with the annular plane sealing surface through a conical surface.

The second connecting part 23 further comprises a second pipe bracket 232 positioned on the inner side of the second end block 231, a second clamping groove 27 is formed by a gap between the front end of the second end block 231 and the front end of the second pipe bracket 232, after the filter unit 1 is installed, the second flange-shaped sealing part 122 is clamped in the second clamping groove 27, the second pipe bracket 232 supports the second extending part 121, and the sealing ring 3 is axially pressed by the annular plane-shaped sealing surface to form sealing.

Example 2

In a second filter according to the present invention, as shown in fig. 10-14, the first connecting portion 22 includes a tube 24 provided in a separate body, and the hollow interior of the tube 24 forms a flow passage. The end of the pipe 24 has an annular planar sealing surface 241, the end surface of the flow channel is connected to the annular planar sealing surface 241 by a tapered surface 243, the front end of the annular planar sealing surface 241 has a second lead-in surface 244, and the second lead-in surface 244 is formed by extending obliquely outwards from the connection with the annular planar sealing surface 241. The second introduction surface 244 has the same structure and function as the introduction surface 224 of the end block 221 in embodiment 1, and therefore, in this embodiment, the introduction surface 224 is not provided on the side of the attachment hole 223 of the end block 221 facing the filter unit 1.

Similarly, the structure of the second pipe 25 is identical to that of the pipe 24, and the introduction surface is also located at the front end of the annular planar sealing surface of the second pipe 25, which is not described again.

In addition, in order to facilitate the connection or disconnection of the filtering unit 1 and an external pipeline, a valve is additionally arranged on one side of the pipe 24 and one side of the pipe 25, the valve comprises a valve body with an internal channel and a valve rod which is positioned on one side of the valve body and used for rotating the valve body, and the valve body is hermetically arranged in a flow channel of the pipe 24 and the pipe 25.

Compared with embodiment 1, in the filter provided in embodiment 2, only the formation positions of the introduction surfaces of the first connection port 22 and the second connection port 23 are different, the structures, the connection relationships, and the sealing relationships of the rest parts are the same as those disclosed in embodiment 1, and the structures of the filter unit 1 are the same, which is not described again.

Example 3

Fig. 15-22 illustrate a third filter according to the present invention, which comprises a filter unit 1 and a clamp 2 for holding the filter unit 1 and communicating with the filter unit.

As shown in fig. 17 and 18, the filter unit 1 includes a housing 10, a filter element (not shown) located inside the housing 10, and a first joint 11 and a second joint 12 located at two ends of the housing 10, wherein at least one of the first joint 11 and the second joint 12 is provided with a sealing ring 3 at its end, and in this embodiment, the first joint 11 is provided with a sealing ring 3 at its end.

The second connector 12 includes a second extension part 121, and a slot 124 and a mounting groove 125 formed at an end of the second extension part 121 and communicated with each other, and a second blocking part 126 and a second blocking part 127 are further formed at both sides of the mounting groove 125.

As shown in fig. 15, 16, and 19-22, the clamp 2 includes a clamp main body 21, and a first interface portion 22 and a second interface portion 23 located at two ends of the clamp main body 21, wherein the first interface portion 22 and the second interface portion 23 are detachably and hermetically connected with the first joint 11 and the second joint 12, respectively.

At least one of the first and

second interfaces

22, 23.

In the present embodiment, the first interface 22 and the second interface 23 respectively include a tube 24 and a tube 25 provided in a split type.

The first connecting port 22 includes an end block 221, a mounting hole 223 for mounting the pipe 24 is provided in the end block 221, the mounting hole 223 is a through hole, one end of the pipe 24 facing the inside of the end block 221 has a sealing surface 241, and the sealing surface 241 is fitted and sealed with the seal ring 3 at the end of the first joint 11 of the filter unit 1. Preferably, the sealing surface 241 is an annular flat surface, and after the filter unit 1 is installed, the sealing ring 3 at the end of the first joint 11 is axially pressed by the annular flat sealing surface 241 to form a seal.

The pipe member 24 includes an adaptor 24A and an outer adaptor 24B provided in a separate body, the adaptor 24A is sealingly mounted in the through hole (mounting hole 223), an end surface of the adaptor 24A facing the inside of the end block 221 includes an annular planar sealing surface 241, and a seal is formed between an end surface facing the outside of the end block 221 and a step surface in the through hole by a sealing ring; one end of the external connector 24B is connected in the through hole through threads, and the other end of the external connector is positioned at the outer end of the through hole so as to be connected with an external pipeline; the hollow interior of the adapter 24A and the hollow interior of the extension 24B are in liquid-tight fluid communication, thereby constituting a flow channel of the first interface 22 which communicates the interior of the filter unit 1 with external piping.

Similarly to the previous embodiment, the end face of the adapter piece 24A facing the inside of the end block 221 further includes a second lead-in face 244 located at the front end of the annular planar sealing face 241, and the second lead-in face 244 is formed extending obliquely outward from its junction with the annular planar sealing face 241. The second introduction surface 244 may be a tapered surface formed on the entire outer periphery of the annular planar seal surface 241. The end surface of the flow passage formed by the hollow interior of the adapter 24A facing the inside of the end block 221 and the annular planar sealing surface 241 are connected to each other by a tapered surface 243.

Similarly, in order to facilitate the installation of the filter unit 1 and to better fix the first joint 11 after the installation, the first connecting portion 22 further includes a tube receiver 222 located inside the end block 221, a slot 26 is formed by a gap between the front end of the end block 221 and the front end of the tube receiver 222, after the installation of the filter unit 1, the flange-shaped sealing portion 112 is engaged in the slot 26, the tube receiver 222 supports the extension portion 111, and the sealing ring 3 is pressed in the axial direction by the annular planar sealing surface 241 to form a seal.

In addition, in order to facilitate the connection or disconnection of the filter unit 1 and an external pipeline, a valve is additionally arranged on one side of the pipe 24, the valve comprises a valve body with an internal channel and a valve rod which is positioned on one side of the valve body and used for rotating the valve body, and the valve body is hermetically arranged in a flow channel of the pipe 24.

The second connecting port portion 23 includes a second end block 231 and a second pipe bracket 232, and the second connecting port portion 23 is detachably connected to the second connector 12 through a second pipe member 25 provided in a split manner.

The second pipe fitting 25 comprises an adapter portion 25A, a rotating shaft 25B, a second external piece 25C and a handle 25D, the rotating shaft 25B is rotatably connected to the inner side of the end block 231 of the second connecting portion 23, the adapter portion 25A is vertically connected with the rotating shaft 25B, one end of the second external piece 25C is hermetically connected to the second end block 231, the other end of the second external piece is located at the outer end of the end block 231 and used for being connected with an external pipeline, and the handle 25D is mounted on one side of the rotating shaft 25B and used for rotating the rotating shaft 25B.

The adapter part 25A is provided with an internal channel, the rotating shaft 25B is provided with a radial internal channel, and the second external piece 25C is provided with an internal flow channel; by rotating the rotating shaft 25B, the internal passage of the adapter 25A and the internal passage of the second external connector 25C can be in fluid communication or disconnected via the internal flow passage of the rotating shaft 25B.

The adapter portion 25A includes a cylindrical portion and a flange at an end of the cylindrical portion, when the filter unit 1 is in the installation state, the flange at the end of the adapter portion 25A is inserted into the insertion groove 124 of the second connector 12, the cylindrical portion is clamped in the installation groove 125, and the crotch portion 126 and the second crotch portion 127 prevent the flange from being removed from the insertion groove 124.

Example 4

Fig. 23-30 show a filter according to embodiment 4 of the present invention, which includes a filter unit 1 and a clamp 2 for clamping the filter unit 1 and communicating therewith.

As shown in fig. 24, the filter unit 1 includes a housing 10, a filter element (not shown) located inside the housing 10, and a first joint 11 and a second joint 12 located at two ends of the housing 10, wherein at least one of the first joint 11 and the second joint 12 is provided with a sealing ring 3 at its end, and in this embodiment, the sealing ring 3 is provided at both the end of the first joint 11 and the end of the second joint 12.

The second joint 12 includes a second extension portion 121 and a second spherical sealing portion 122 formed at a distal end of the second extension portion 121, and the seal ring 3 is fixed to an outer periphery of the second sealing portion 122.

The clamp 2 shown in fig. 25-30 comprises a clamp main body 21, and a first interface part 22 and a second interface part 23 which are arranged at two ends of the clamp main body 21, wherein the first interface part 22 and the second interface part 23 are respectively connected with the first joint 11 and the second joint 12 in a detachable sealing mode.

At least one of the first and

second interfaces

22, 23.

The pipe member 24 includes an adaptor 24A, a sealing member 24C and an outer adapter 24B provided in a separate body, the adaptor 24A and the sealing member 24C are sealingly mounted in the through hole (the mounting hole 223), one end surface of the adaptor 24A facing the inside of the end block 221 includes an annular planar sealing surface 241, and a seal is formed between one end surface facing the outside of the end block 221 and the inner surface in the through hole via a sealing ring; one end of the external connector 24B is connected in the through hole through threads, and the other end of the external connector is positioned at the outer end of the through hole so as to be connected with an external pipeline; the sealing piece 24C is located inside the through hole and between the adapter piece 24A and the adapter piece 24B, the sealing piece 24C has certain flexibility, the end of the sealing piece 24C facing the adapter piece 24B and the adapter piece 24B form a seal through pressing, the end of the sealing piece 24C facing the adapter piece 24A is spaced from the adapter piece 24A, the valve 4 is installed between the two, the end of the sealing piece 24C facing the adapter piece 24A and the valve body 40 of the valve 4 form a seal through pressing, and the end of the adapter piece 24A facing the outer side of the end block 221 also forms a seal through pressing with the valve body 40 of the valve 4. The adaptor 24A has an internal passage, the seal 24C has an internal passage, and the extension 24B also has an internal passage.

The valve body 40 of the valve 4 has an internal passage, the valve body 40 is hermetically mounted in a flow passage formed by the adaptor 24A and the sealing member 24C, and when the valve body 40 side, the valve rod 41 for rotating the valve body 40, and the valve rod 41 are rotated, and the internal passage of the valve body 40 can communicate the internal passage of the adaptor 24A, the internal passage of the sealing member 24C, and the internal passage of the outer connector 24B, a flow passage of the first interface part 22 is formed, and the flow passage communicates the inside of the filter unit 1 with an external pipeline. The valve stem 41 may be rotated to shut off the flow path of the first connection port 22.

Similarly to the previous embodiment, the end face of the adapter piece 24A facing the inside of the end block 221 further includes a second lead-in face 244 located at the front end of the annular planar sealing face 241, the second lead-in face 244 being formed extending obliquely outward from its junction with the annular sealing face 241. The second introduction surface 244 may be a tapered surface formed on the entire outer periphery of the annular planar seal surface 241. The end surface of the flow passage formed by the hollow interior of the adapter 24A facing the inside of the end block 221 and the annular planar sealing surface 241 are connected to each other by a tapered surface 243.

The second connecting portion 23 comprises a second end block 231, a second mounting hole 233 used for mounting a second pipe fitting 25 is formed in the second end block 231, the second mounting hole 233 is a through hole, a step surface is formed in the second pipe fitting 25, the step surface matched with the step surface of the second pipe fitting 25 is formed in the through hole, the second pipe fitting 25 is provided with a second external connecting portion 251 penetrating through the outer end of the through hole and connected with an external pipeline, and the second external connecting portion 251 comprises a part used for being connected with a pipe and an external thread.

The end part of the second pipe 25 facing the inside of the through hole is provided with a receiving groove 250, the inner wall of the receiving groove 250 forms a second sealing surface 252, the second sealing surface 252 is a circumferential curved surface, the sealing ring 3 is positioned on the outer periphery of the end part of the second joint 12 of the filter unit 1, namely the sealing ring 3 is positioned on the outer periphery of the spherical second sealing part 122 at the tail end of the second joint 12, after the filter unit 1 is installed, the sealing ring 3 is circumferentially pressed between the outer periphery of the end part of the second joint 12 and the second sealing surface 252 in the circumferential curved shape, namely the sealing ring 3 is circumferentially pressed between the outer periphery of the spherical second sealing part 122 and the second sealing surface 252 in the circumferential curved shape, and sealing is formed.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. A filter comprises a filter unit and a clamp which is used for clamping the filter unit and communicated with the filter unit;

the method is characterized in that: at least one of the connecting parts comprises a pipe provided in a split type, the hollow interior of the pipe forms a flow channel of the connecting part, one end part of the pipe is in sealing connection with one connector of the filtering unit, and the other end part of the pipe is in sealing connection with an external pipeline, so that the interior of the filtering unit is communicated with the external pipeline.

2. The filter of claim 1, wherein the interface portion comprises an end block having a mounting hole for mounting a tube, the tube having a sealing surface at one end, and the filter unit having a corresponding adapter with a sealing ring for mating with the sealing surface.

3. The filter of claim 2, wherein the mounting hole is a through hole, the tube has a step surface, the through hole has a step surface matching the step surface of the tube, and the tube has an external connection part passing through the outer end of the through hole and connected to an external pipeline; or, the mounting hole is the through-hole, the pipe fitting includes adaptor and the external part with split type provides, adaptor seal installation is in the through-hole, sealed face is located the inboard tip of the orientation through-hole of adaptor, the one end of external part is connected in the through-hole, and the other end is located the outer end of through-hole so that be connected with outside pipeline, the hollow inside of adaptor and the hollow inside of external part form the fluid intercommunication of imperviousness to constitute the runner of this interface portion.

4. A filter according to claim 2 or 3, wherein the sealing surface is an annular flat surface and the sealing ring is located at the end face of the adapter of the filter unit, and the sealing ring is axially pressed by the annular flat surface to form a seal after the filter unit is installed.

5. A filter according to claim 4, characterised in that the adapter comprises an extension integrally formed at one end of the filter unit and a flange-like seal at the end of the extension, the end of the seal having a groove in which the sealing ring is located.

6. The filter of claim 5, wherein the interface portion further comprises a tube bracket located inside the end block, wherein a gap between a front end of the end block and a front end of the tube bracket forms a slot, and wherein the flange-like sealing portion is engaged in the slot after the filter unit is installed, and the tube bracket holds the extension portion.

7. The filter of claim 4 wherein an end face of said flow passage is connected to said annular planar sealing surface by a conical surface transition; alternatively, the tubular element further comprises a lead-in surface at the front end of the annular planar sealing surface, the lead-in surface extending obliquely outward from the connection with the annular planar sealing surface.

8. The filter of claim 2, wherein the sealing surface is a circumferential curved surface, the sealing ring is positioned on an outer circumference of the end of the adapter of the filter unit, and the sealing ring is circumferentially compressed between the outer circumference of the end of the adapter and the circumferential curved surface to form a seal after the filter unit is installed.

9. The filter of claim 8, wherein the joint comprises an extension integrally formed at one end of the filter unit and a spherical sealing part at a distal end of the extension, and the sealing ring is fixed to an outer circumference of the sealing part.

10. The filter of claim 1, wherein one side of the pipe is provided with a valve, the valve comprising a valve body having an internal passage and a valve stem at one side of the valve body for rotating the valve body, the valve body being sealingly installed in the flow passage of the pipe.