TWM622022U - filter - Google Patents

Abstract

The novel creation relates to a filter, which includes a filter unit and a clamp, the filter unit includes a shell, a filter element located inside the shell, and two joints located at both ends of the shell, the clamp includes a clamp body, and two interface parts located at both ends of the clamp body , the two joints of the filter unit respectively form a detachable sealing connection with the two interface parts of the clamp, at least one interface part includes a pipe part provided in a split type, and the hollow interior of the pipe part provided in the split type constitutes the flow of the interface part. One end of the pipe is in a sealed connection with a joint of the filter unit, and the other end of the pipe is in a sealed connection with the external pipeline, so as to communicate the internal and external pipelines of the filter unit. The pipe fittings provided by the split type are in direct contact with the liquid, and the pipe fittings only need to be made of materials with better resistance performance, which can reduce the cost; in addition, for different external pipes, it is only necessary to adjust the structure of the pipe fittings accordingly. adaptability is improved.

Description

filter

This novel creation relates to the field of filtering technology, and in particular to a filter.

The Chinese patent with the patent number CN1315559C provides a fluid separation element, which includes a separation unit and a manifold. The separation unit includes a housing, a separation device (filter element) located inside the housing, and inlets and outlets at both ends of the housing. The manifold includes A first portion in communication with the inlet and a second portion in communication with the outlet. As shown in the patent drawings, both the first part and the second part of the manifold have integrally formed fluid passages, and the inlet and outlet of the separation unit communicate with the external pipeline through the fluid passage of the first part and the fluid passage of the second part, For the inflow of raw material and the outflow of clean filtrate.

The separation element is often used to filter corrosive fluids, and the side wall of the fluid channel is the part that needs to be in direct contact with the fluid, so the side wall of the fluid channel needs to be made of corrosion-resistant materials such as PTFE. Since the fluid passages are integrally formed in the first and second parts of the manifold, the entire first and second parts of the manifold need to be made of PTFE material, which is expensive, and the manufacturing cost of the manifold is also greatly increased.

In addition, the inlet and outlet of the separation unit are communicated with the external pipeline through one end of the fluid channel of the first part and one end of the fluid channel of the second part. The purpose is: the outer circumference of the other end of the fluid channel includes an external thread and a sealing part for sealing the sleeve pipe, the pipe is sleeved on the outer circumference of the sealing part, and then tightened by a nut to form a seal. When the fluid separation element is used to handle high temperature fluids such as fluids with a temperature higher than 120°C, the external thread and sealing part at the other end of the fluid passage must be able to withstand high temperature conditions. In other words, when fluids in different temperature ranges need to be handled, the fluid The structure of the sealing portion on the outer periphery of the other end of the channel needs to be changed accordingly, and the fluid channel is integrally formed in the first part and the second part of the manifold. Accordingly, it is necessary to provide the corresponding first part and the second part of the manifold. In other words, when filtering and processing fluids in different temperature segments, it is necessary to provide manifolds that can meet the temperature conditions, so that the adaptability of the manifolds is poor.

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

The purpose of the new creation is to provide a filter to solve the problems of high manufacturing cost of the manifold and poor adaptability of the manifold.

In order to achieve the above purpose, the new creation adopts the following technical solutions: A filter, comprising a filter unit and a clamp for clamping the filter unit and communicating with it; The filter unit includes a casing, a filter element located inside the casing, and two joints located at both ends of the casing; The fixture comprises a fixture body, and two interface parts located at both ends of the fixture body, the two interface parts are respectively connected with the two joints in a detachable sealing connection; At least one of the interface parts includes a pipe part provided in a split type, the hollow interior of the pipe part constitutes a flow channel of the interface part, one end of the pipe part forms a sealing connection with a joint of the filter unit, and the other part of the pipe part forms a sealing connection. One end is in a sealed connection with the external pipeline, so as to communicate the internal and external pipelines of the filter unit.

The novel creation provides a filter, which includes a filter unit and a clamp, the two joints of the filter unit form a detachable and sealed connection with the two interface parts of the clamp, wherein at least one interface part includes a pipe provided in a split type, the The hollow interior of the pipe fitting provided by the split type constitutes the flow channel of the interface portion. One end of the pipe fitting forms a sealed connection with a joint of the filter unit, and the other end of the pipe fitting forms a sealed connection with the external pipeline, so as to connect the inside of the filter unit. Connected to external piping. In this filter, the filter unit communicates with the external pipeline through the pipe provided in the interface part in a separate manner, because the pipe is in direct contact with the liquid. Other performances will have different requirements. Only the pipes provided in the split type are made of materials with better cleanliness, corrosion resistance, heat resistance, etc., which is conducive to reducing costs; on the other hand, it is connected with external pipes of different structures. When the pipe fittings need to have a corresponding matching connection structure, when designing this way, it is only necessary to adjust the connection structure of the pipe fittings accordingly, that is, under different working conditions, replace the corresponding pipe fittings, and the rest of the interface part is made into standard parts. Adaptability is improved.

Further, the interface portion includes an end block, and the end block is provided with a mounting hole for installing a pipe fitting, one end of the pipe fitting has a sealing surface, and a corresponding joint of the filter unit is provided with a sealing surface. sealing ring.

The interface part includes an end block, the end block has a mounting hole, and the pipe fitting is fixed and installed through the mounting hole on the end block; one end of the pipe fitting has a sealing surface, and a sealing ring is arranged on the corresponding joint of the filter unit, and the sealing ring is matched with the sealing surface. form a seal.

Further, the mounting hole is a through hole, the pipe is provided with a stepped surface, the through hole has a stepped surface matched with the stepped surface of the pipe, and the pipe has an outer end passing through the through hole and is connected with the external pipe. or, the installation hole is a through hole, the pipe fitting includes an adapter and an outer part provided in a split type, the adapter is sealed and installed in the through hole, and the sealing surface is located at the adapter. The end of the connector facing the inner side of the through hole, one end of the outer connector is connected in the through hole, and the other end is located at the outer end of the through hole so as to be connected with the external pipeline. The hollow interior of the member forms a liquid-tight fluid communication, thereby constituting the flow path of the interface portion.

The installation hole is a through hole, the pipe fitting is provided with a stepped surface, and the through hole has a stepped surface that matches the stepped surface of the pipe fitting, that is, the pipe fitting and the through hole are fixed and matched through the stepped surface between the two; The external part forms a sealed connection with the external pipeline.

Alternatively, the pipe fitting includes an adaptor and an external part provided in a separate type, the adaptor is sealed and installed in the through hole, one end of the external part is connected in the through hole, and the other end is located at the outer end of the through hole, so as to be connected with the external pipeline. For connection, a liquid-tight fluid communication is formed between the hollow interior of the adapter and the hollow interior of the external part, thereby forming the flow channel of the interface part. When necessary, only the external part can be removed, which is more convenient to operate.

Further, the sealing surface is an annular plane, and the sealing ring is located at the end surface of the joint of the filter unit. After the filter unit is installed, the sealing ring is axially pressed by the annular planar sealing surface to form a seal.

The sealing surface is an annular plane, and the sealing ring is located at the end surface of the joint of the filter unit. After the filter unit is installed, the sealing ring is axially pressed by the annular planar sealing surface to form a seal; the annular planar sealing surface and the sealing ring The end face of the seal is matched, and it is convenient to process and manufacture on the premise of ensuring a reliable seal with the sealing ring.

Further, the joint includes an extension part integrally formed at one end of the filter unit and a flange-shaped sealing part located at the end of the extension part, the end of the sealing part has a groove, and the sealing ring is located in the groove.

The joint comprises an extension integrally formed at one end of the filter unit and a flange-shaped sealing part located at the end of the extension, the end of the sealing part has a groove, the sealing ring is located in the groove, the sealing part is set as a flange, and A sealing ring is arranged in the groove at the end of the sealing ring, and the sealing ring forms a reliable seal with the annular planar sealing surface, that is, on the premise that the joint can form a reliable seal with the pipe fitting, the structure of the joint is simplified, and the processing and manufacturing are convenient. .

Further, the interface part also includes a tube holder located inside the end block, the gap between the front end of the end block and the front end of the tube holder forms a slot, after the filter unit is installed, the flange-shaped seal The extension portion is clamped in the slot, and the tube holder supports the extension portion.

Further, one end surface of the flow channel and the annular planar sealing surface are connected by a conical surface transition; It is formed to extend obliquely outward from its connection with the annular planar sealing surface.

One end surface of the flow channel and the annular planar sealing surface are connected by a conical surface transition, which facilitates the rapid matching of the sealing ring with the annular planar sealing surface to form a seal, and at the same time, can reduce the wear of the sealing ring.

The pipe also includes an introduction surface located at the front end of the annular planar sealing surface, the introduction surface is formed to extend obliquely outward from its connection with the annular planar sealing surface, the introduction surface guides the movement of the joint and the sealing ring, and the joint and the sealing ring are formed from the joint. When the front end of the lead-in surface moves to the rear end of the lead-in surface, the pressing force on the seal ring gradually increases, and the seal ring slides over the lead-in surface to reach the annular planar seal surface, thereby forming a reliable seal. When the filter unit is disassembled, during the movement of the joint and the sealing ring from the rear end of the introduction surface to the front end of the introduction surface, the pressing force on the sealing ring gradually decreases, and the disassembly is more labor-saving.

Further, the sealing surface is a circumferential curved surface, and the sealing ring is located on the outer circumference of the end of the joint of the filter unit. After the filter unit is installed, the sealing ring is subjected to the pressure between the outer circumference of the end of the joint and the circumferential curved surface. Circumferential extrusion to form a seal.

The sealing surface is a circumferential curved surface, and the sealing ring is located on the outer circumference of the end of the joint of the filter unit. After the filter unit is installed, the sealing surface formed by the circumferential curved surface and the outer circumference of the end of the joint produce a circumferential extrusion effect on the sealing ring. force to ensure a reliable sealing effect between the joint and the pipe.

Further, the joint includes an extension part integrally formed at one end of the filter unit and a spherical sealing part located at the end of the extension part, and the sealing ring is fixed on the outer periphery of the sealing part.

The joint includes an extension part integrally formed at one end of the filter unit and a spherical sealing part located at the end of the extension part, the spherical sealing part is accommodated in the circumferential curved surface, the sealing ring is fixed on the outer circumference of the sealing part, and is subject to the circumferential curved surface and the Circumferential extrusion between the spherical sealing parts forms a reliable seal.

Further, one side of the pipe fitting is provided with a valve, the valve comprises a valve body with an internal passage and a valve stem located on one side of the valve body for rotating the valve body, the valve body is sealingly installed in the flow passage of the pipe fitting .

One side of the pipe fitting is provided with a valve. The valve includes a valve body with an internal passage and a valve stem located on one side of the valve body for rotating the valve body. The valve body is sealed and installed in the flow passage of the pipe fitting. Break the pipe fittings to facilitate the replacement of the filter unit.

The novel creation provides a filter, which includes a filter unit and a clamp, the two joints of the filter unit form a detachable and sealed connection with the two interface parts of the clamp, wherein at least one interface part includes a pipe provided in a split type, the The hollow interior of the pipe fitting provided by the split type constitutes the flow channel of the interface portion. One end of the pipe fitting forms a sealed connection with a joint of the filter unit, and the other end of the pipe fitting forms a sealed connection with the external pipeline, so as to connect the inside of the filter unit. Connected to external piping. In this filter, the filter unit communicates with the external pipeline through the pipe provided in the interface part in a separate manner, because the pipe is in direct contact with the liquid. Other performances will have different requirements. Only the pipes provided in the split type are made of materials with better cleanliness, corrosion resistance, heat resistance, etc., which is conducive to reducing costs; on the other hand, it is connected with external pipes of different structures. When the pipe fittings need to have a corresponding matching connection structure, when designing this way, it is only necessary to adjust the connection structure of the pipe fittings accordingly, that is, under different working conditions, replace the corresponding pipe fittings, and the rest of the interface part is made into standard parts. Adaptability is improved.

In order to be able to more clearly understand the above-mentioned objects, features and advantages of the novel creation, the novel creation will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

In the following description, many specific details are set forth in order to fully understand the novel creation. However, the novel creation can also be implemented in other ways different from those described here. Therefore, the protection scope of the novel creation is not subject to the following Limitations of the specific embodiments disclosed.

Example 1

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

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

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

The second joint 12 includes an extension part 2 121 and a flange-shaped sealing part 2 122 formed at the end of the extension part 2 121 .

As shown in FIGS. 4 to 9A , the clamp 2 includes a clamp body 21 , and a first interface portion 22 and a second interface portion 23 located at both ends of the clamp body 21 . The first interface portion 22 and the second interface portion 23 are respectively connected to the first interface portion 22 and the second interface portion 23 . The joint 11 and the second joint 12 form a detachable sealing connection.

At least one of the first interface portion 22 and the second interface portion 23 includes pipes provided in a separate manner, for example, one of the pipe elements is integrally formed with one of the first interface portion 22 and the second interface portion 23, and the other pipe The other one of the first interface part 22 and the second interface part 23 is provided separately and fixedly installed.

In this embodiment, the first interface portion 22 and the second interface portion 23 respectively include a pipe fitting 24 and a second pipe fitting 25 provided in a separate manner, and the hollow interiors of the pipe fitting 24 and the second pipe fitting 25 respectively constitute the first interface portion 22 and the second fitting The flow channel of the interface 23, one end of the pipe 24 and one end of the second pipe 25 form a sealed connection with the first joint 11 and the second joint 12 of the filter unit 1 respectively, and the other end forms a sealed connection with the external pipeline, thereby Connect the inside and outside of the filter unit 1 with piping.

Specifically, the first interface portion 22 includes an end block 221 . The end block 221 is provided with an installation hole 223 for installing the pipe fitting 24 . One end of the pipe fitting 24 has a sealing surface 241 , which is connected to the first joint 11 of the filter unit 1 . The sealing ring 3 at the end is matched to seal. Preferably, the sealing surface 241 is an annular plane. 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 plane-shaped sealing surface 241 to form a seal.

The mounting hole 223 is a through hole, the pipe piece 24 is provided with a stepped surface, and the through hole has a stepped surface matched with the stepped surface of the pipe piece 24. The pipe piece 24 also has an external portion 242 that penetrates the outer end of the through hole and is connected to an external pipeline. , the outer portion 242 includes a portion for connecting with a pipe and an external thread. During installation, the pipe piece 24 is passed through the through hole from the inner side of the end block 221 , the stepped surface of the pipe piece 24 contacts and fits with the stepped surface in the through hole, and the external 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 installation hole (through hole) 223 facing the filter unit 1 also includes an introduction surface 224 formed by extending obliquely outward. After the pipe 24 is fixed to the installation hole 223, the front end of the annular planar sealing surface 241 and the introduction surface 224 The rear ends are just adjacent and coincident. Alternatively, the introduction surface 224 can also extend around the entire outer circumference of the installation hole 223 toward the filter unit 1 to form a tapered surface. The corresponding ends of the lead-in surfaces 224 are also abutted and coincident.

The introduction surface 224 guides the movement of the first joint 11 and the sealing ring 3. During the movement of the first joint 11 and the sealing ring 3 from the front end of the introduction surface 224 to the rear end of the introduction surface 224, the pressing force on the sealing ring 3 gradually increases. Increase, the sealing ring 3 slides over the introduction surface 224 and then reaches the annular planar sealing surface 241, thereby forming a reliable seal. When the filter unit 1 is disassembled, when the first joint 11 and the sealing ring 3 move from the rear end of the introduction surface 224 to the front end of the introduction surface 224 , the pressing force on the sealing ring 3 is gradually reduced, and the disassembly is more labor-saving.

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

In order to facilitate the rapid matching of the sealing ring 3 with the annular planar sealing surface 241 to form a seal, and at the same time, the wear of the sealing ring 3 can be reduced. The transition is connected by the 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 is completed, the first interface portion 22 further includes a pipe holder 222 located inside the end block 221, the front end of the end block 221 and the pipe holder The gap between the front ends of the 222 forms a slot 26. After the filter unit 1 is installed, the flange-shaped sealing part 112 is clamped in the slot 26, the tube holder 222 supports the extension part 111, and the sealing ring 3 is subjected to the annular plane. The axial pressing action of the sealing surface 241 forms 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 fixture main body 21 .

In addition, in order to facilitate the connection or disconnection of the filter unit 1 with the external pipeline, a valve is also provided on one side of the pipe fitting 24, and the valve includes a valve body with an internal passage and a valve stem located on one side of the valve body for rotating the valve body, The valve body is sealingly mounted in the flow channel of the pipe fitting 24 .

The specific structure of the second interface part 23 is the same as that of the first interface part 22 , and also includes the second end block 231 .

The second pipe 25 and the second pipe 24 have the same structure. The second pipe 25 is provided with a stepped surface, and the through hole of the second end block 231 has a stepped surface matched with the stepped surface of the second pipe 25 . One end of the second pipe 25 has a sealing surface, and the sealing surface is used to cooperate and seal with the sealing ring 3 at the end of the second joint 12 of the filter unit 1 . Preferably, the sealing surface is also an annular plane. After the filter unit 1 is installed, the sealing ring 3 at the end of the second joint 12 is axially pressed by the annular plane-shaped sealing surface to form a seal. The second pipe piece 25 also has an outer portion that passes through the outer end of the through hole and is connected to an external pipeline, and the outer portion includes a portion for connecting with a pipe and an outer thread. Similar to the pipe piece 24, the second pipe piece 25 can also be provided with a valve to facilitate the connection or disconnection of the filter unit 1 and the external pipeline.

The front end of the through hole of the second end block 231 facing the filter unit 1 is also provided with an introduction surface, and the introduction surface has the same structure as the introduction surface 224 of the end block 221 . Alternatively, it can also form a tapered surface around the entire outer circumference of the through hole facing the filter unit 1 side. One end surface of the flow channel inside the second pipe piece 25 is also connected with the annular planar sealing surface through a conical surface transition.

The second interface portion 23 also includes a second tube holder 232 located inside the second end block 231. The gap between the front end of the second end block 231 and the front end of the second tube holder 232 forms a second slot 27. After the filter unit 1 is installed, the flange The second-shaped sealing portion 122 is clamped in the second slot 27, the second tube holder 232 supports the second extension portion 121, and the sealing ring 3 is axially pressed by the annular planar sealing surface to form a seal.

Example 2

Figures 10-14 provide a second type of filter for this novel creation, the first interface portion 22 includes a pipe member 24 provided in a split type, and the hollow interior of the pipe member 24 forms a flow channel. One end of the pipe member 24 has an annular planar sealing surface 241, and the one end surface of the flow channel and the annular planar sealing surface 241 are transitionally connected by a conical surface 243. The front end of the annular planar sealing surface 241 has an introduction surface 2. 244, the second introduction surface 244 is formed to extend obliquely outward from its connection with the annular planar sealing surface 241. The structure and function of the introduction surface 244 are the same as the introduction surface 224 of the end block 221 in the first embodiment. Therefore, in this embodiment, the installation hole 223 of the end block 221 is not provided with the introduction surface 224 on the side of the filter unit 1. .

Similarly, the specific structure of the second pipe 25 is exactly the same as 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 will not be repeated.

In addition, in order to facilitate the connection or disconnection between the filter unit 1 and the external pipeline, a valve is also provided on one side of the pipe fitting 24 and the second pipe fitting 25. The valve includes a valve body with an internal passage and a valve located on one side of the valve body for rotating the valve. The valve stem of the valve body is sealed and installed in the flow channel of the pipe fitting 24 and the second pipe fitting 25 .

Compared with Embodiment 1, in the filter provided in Embodiment 2, only the formation positions of the introduction surfaces of the first interface part 22 and the second interface part 23 are different, and the structure, connection relationship and sealing relationship of the remaining parts are the same as those in the embodiment. The structure disclosed in 1 is the same, and the structure of the filtering unit 1 is also the same, and will not be repeated.

Example 3

Figures 15-22 provide a third filter for the novel creation, which includes a filter unit 1 and a clamp 2 for holding and communicating with the filter unit 1 .

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

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

The second connector 12 includes an extension part 121 , a slot 124 and an installation groove 125 that communicate with each other and are formed at the end of the extension part 2 121 .

As shown in FIGS. 15 , 16 and 19 to 22 , the clamp 2 includes a clamp body 21 , and a first interface portion 22 and a second interface portion 23 located at both ends of the clamp body 21 . The first interface portion 22 and the second interface The parts 23 form detachable sealing connections with the first joint 11 and the second joint 12, respectively.

At least one of the first interface portion 22 and the second interface portion 23 includes pipes provided in a separate manner, for example, one of the pipe elements is integrally formed with one of the first interface portion 22 and the second interface portion 23, and the other pipe The other one of the first interface part 22 and the second interface part 23 is provided separately and fixedly installed.

In this embodiment, the first interface portion 22 and the second interface portion 23 respectively include a pipe fitting 24 and a second pipe fitting 25 provided in a separate manner.

The first interface portion 22 includes an end block 221. The end block 221 is provided with a mounting hole 223 for mounting the pipe fitting 24. The mounting hole 223 is a through hole. 241 cooperates with the sealing ring 3 at the end of the first joint 11 of the filter unit 1 to seal. Preferably, the sealing surface 241 is an annular plane. 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 plane-shaped sealing surface 241 to form a seal.

The pipe piece 24 includes an adapter piece 24A and an external piece 24B which are provided in separate form. The adapter piece 24A is sealed and installed in the through hole (the mounting hole 223 ). The sealing surface 241 of the end block 221 is sealed by a sealing ring between the end surface facing the outer side of the end block 221 and the stepped surface in the through hole; In order to be connected with the external pipeline; the hollow interior of the adapter 24A and the hollow interior of the outer part 24B form a liquid-tight fluid communication, thereby forming a flow channel of the first interface portion 22, which connects the filter unit 1 Internal and external pipelines are communicated.

Similar to the previous embodiment, the end face of the adapter 24A facing the inner side of the end block 221 also includes an introduction surface 244 located at the front end of the annular planar sealing surface 241, and the introduction surface 244 is sealed from the annular planar seal surface 244. The connecting portion of the surfaces 241 is formed to extend obliquely outward. The second introduction surface 244 may be a tapered surface formed over the entire outer circumference of the annular planar sealing surface 241 . In addition, the end surface of the flow channel formed in the hollow interior of the adapter 24A facing the inside of the end block 221 and the annular planar sealing surface 241 are transitionally connected 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 is completed, the first interface portion 22 further includes a pipe holder 222 located inside the end block 221, the front end of the end block 221 and the pipe The gap between the front ends of the brackets 222 forms a slot 26. After the filter unit 1 is installed, the flange-shaped sealing portion 112 is locked in the slot 26, the tube bracket 222 supports the extension portion 111, and the sealing ring 3 is subjected to the annular planar shape. The axial pressing action of the sealing surface 241 forms a seal.

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

The second interface part 23 includes a second end block 231 and a second tube holder 232 , and the second interface part 23 forms a detachable and sealed connection with the second joint 12 through a second pipe part 25 provided in a separate manner.

The second pipe fitting 25 includes an adapter portion 25A, a rotating shaft 25B, an external member 25C and a handle 25D. The rotating shaft 25B is rotatably connected to the inner side of the end block 231 of the second interface portion 23 , and the adapter portion 25A is vertically connected with the rotating shaft 25B. One end of 25C is sealingly connected to the second end block 231, and the other end is located at the outer end of the end block 231 for connecting with external pipelines. The handle 25D is installed on one side of the rotating shaft 25B for rotating the rotating shaft 25B.

The adapter part 25A has an inner channel, the rotating shaft 25B has a radial inner channel, and the outer part 25C has an inner flow channel; when the rotating shaft 25B is rotated, the inner channel of the adapter part 25A and the inner channel of the outer part 25C can pass through the rotation shaft 25B. Internal flow channels are in fluid communication, or disconnected.

The adapter portion 25A includes a cylindrical portion and a flange at the end of the cylindrical portion. When the filter unit 1 is in the installed state, the flange at the end of the adapter portion 25A is inserted into the slot 124 of the second connector 12, and the cylindrical portion is stuck in the installation state. In the slot 125 , the blocking portion 126 and the blocking portion 2 127 prevent the flange from coming out of the slot 124 .

Example 4

Figures 23-30 provide a filter according to Example 4 of the novel creation, which includes a filter unit 1 and a clamp 2 for holding the filter unit 1 and communicating with it.

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 connector 11 and a second connector 12 located at both ends of the housing 10 , wherein the first connector 11 and the second connector 12 The end of at least one of the joints 12 is provided with a sealing ring 3 . In this embodiment, the end of the first joint 11 and the end of the second joint 12 are both provided with a sealing ring 3 .

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

The second joint 12 includes an extension part 2 121 and a spherical sealing part 2 122 formed at the end of the extension part 2 121 , and the sealing ring 3 is fixed on the outer periphery of the sealing part 2 122 .

The clamp 2 shown in FIG. 25 to FIG. 30 includes a clamp main body 21, and a first interface portion 22 and a second interface portion 23 located at both ends of the clamp main body 21. The first interface portion 22 and the second interface portion 23 are respectively connected with The first joint 11 and the second joint 12 form a detachable sealing connection.

At least one of the first interface portion 22 and the second interface portion 23 includes pipes provided in a separate manner, for example, one of the pipe elements is integrally formed with one of the first interface portion 22 and the second interface portion 23, and the other pipe The other one of the first interface part 22 and the second interface part 23 is provided separately and fixedly installed.

In this embodiment, the first interface portion 22 and the second interface portion 23 respectively include a pipe fitting 24 and a second pipe fitting 25 provided in a separate manner.

The first interface portion 22 includes an end block 221. The end block 221 is provided with a mounting hole 223 for mounting the pipe fitting 24. The mounting hole 223 is a through hole. 241 cooperates with the sealing ring 3 at the end of the first joint 11 of the filter unit 1 to seal. Preferably, the sealing surface 241 is an annular plane. 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 plane-shaped sealing surface 241 to form a seal.

The pipe piece 24 includes an adapter piece 24A, a seal piece 24C and an external piece 24B provided in a separate type. The adapter piece 24A and the seal piece 24C are sealed and installed in the through hole (the mounting hole 223 ), and the adapter piece 24A faces the end block 221 One end surface of the inner side includes an annular planar sealing surface 241, and a sealing ring is formed between the end surface facing the outer side of the end block 221 and the inner surface of the through hole through a sealing ring; One end is located at the outer end of the through hole so as to be connected to the external pipeline; the sealing member 24C is located inside the through hole and between the adapter 24A and the external member 24B. The sealing member 24C has a certain flexibility and faces the A seal is formed between the end and the outer part 24B by extrusion, the end of the seal 24C facing the adapter 24A is spaced from the adapter 24A, and the valve 4 is installed between the two, and the seal 24C is facing the adapter 24A The end of the adapter 24A is sealed with the valve body 40 of the valve 4 by extrusion, and the end of the adapter 24A facing the outside of the end block 221 is also sealed with the valve body 40 of the valve 4 by extrusion. Adapter 24A has internal passages, seal 24C has internal passages, and outer member 24B also has internal passages.

The valve body 40 of the valve 4 has an internal passage. The valve body 40 is sealed and installed in the flow channel formed by the adapter 24A and the sealing member 24C. On one side of the valve body 40, the valve stem 41 used to rotate the valve body 40 is used to rotate the valve stem 41. , when the internal channel of the valve body 40 can connect the internal channel of the adapter 24A, the internal channel of the sealing member 24C and the internal channel of the external member 24B, the flow channel of the first interface portion 22 is formed, and the flow channel connects the filter unit 1 The internal and external pipelines are connected. Rotating the valve stem 41 can also disconnect the flow channel of the first interface portion 22 .

Similar to the previous embodiment, the end face of the adapter 24A facing the inner side of the end block 221 also includes an introduction surface 244 located at the front end of the annular planar sealing surface 241 , and the introduction surface 244 is from its connection with the annular sealing surface 241 . The connecting part is formed to extend obliquely outward. The second introduction surface 244 may be a tapered surface formed over the entire outer circumference of the annular planar sealing surface 241 . In addition, the end surface of the flow channel formed in the hollow interior of the adapter 24A facing the inside of the end block 221 and the annular planar sealing surface 241 are transitionally connected 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 is completed, the first interface portion 22 further includes a pipe holder 222 located inside the end block 221, the front end of the end block 221 and the pipe The gap between the front ends of the brackets 222 forms a slot 26. After the filter unit 1 is installed, the flange-shaped sealing portion 112 is locked in the slot 26, the tube bracket 222 supports the extension portion 111, and the sealing ring 3 is subjected to the annular planar shape. The axial pressing action of the sealing surface 241 forms a seal.

The second interface portion 23 includes a second end block 231. The second end block 231 is provided with a second mounting hole 233 for installing the second pipe fitting 25. The second mounting hole 233 is a through hole, and the second pipe fitting 25 is provided with a stepped surface. The second pipe fitting 25 has a second outer portion 251 which passes through the outer end of the through hole and is connected to the external pipeline. The second outer portion 251 includes a portion for connecting with the pipe and an external thread.

The end of the second pipe 25 facing the inner side of the through hole has 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, and the sealing ring 3 is located at the second joint 12 of the filter unit 1 . The outer circumference of the end, that is, the outer circumference of the sealing ring 3 is located at the outer circumference of the spherical sealing part 2 122 at the end of the second joint 12. After the filter unit 1 is installed, the sealing ring 3 is subjected to the outer circumference of the end of the second joint 12 and the circumferential curved surface. Circumferential extrusion between the second 252 shaped sealing surfaces, that is, the sealing ring 3 is subjected to circumferential extrusion between the outer periphery of the spherical sealing portion 2 122 and the circumferentially curved sealing surface 2 252 to form a seal.

The preferred embodiments of the novel creation have been described in detail above, but it should be understood that after reading the above teaching content of the novel creation, those skilled in the art can make various changes or modifications to the novel creation. These equivalent or similar forms also fall within the scope defined by the scope of the appended claims of this application.

1: Filter unit 10: Shell 11: The first connector 111: Extensions 112: Sealing Department 113: Groove 12: Second connector 121: Extension two 122: Sealing part two 123: groove two 124: slot 125: Mounting slot 126: Stopper 127: Block part two 2: Fixtures 21: Fixture body 22: The first interface part 221: End Block 222: Custody 223: Mounting holes 224: Import face 23: The second interface part 231: end block two 232: Manage 2 233: Mounting hole two 24: Pipe fittings 24A: Adapter 24B: External Parts 24C: Seals 241: sealing surface 242: External part 243: Conical face 244: Import face two 25: Pipe fitting two 25A: Adapter 25B: Spindle 25C: External Part II 25D: Handle 250: receiving slot 251: External part two 252: sealing surface two 26: Card slot 27: Card slot two 3: sealing ring 4: Valve 40: valve body 41: Stem

FIG. 1 is a schematic structural diagram of a filter provided by Embodiment 1 of the novel creation. FIG. 2 is a cross-sectional view of the filter provided by Embodiment 1 of the novel creation. 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 of FIGS. 4 and 5 . 7 and 8 are an isometric view and a cross-sectional view of the pipe member of the first interface portion in FIGS. 4 and 5 , respectively. FIG. 9 is a cross-sectional view of the pipe provided in FIGS. 6 to 8 after being fixed to the end block. FIG. 9A is a partial enlarged view of A in FIG. 9 . FIG. 10 is a cross-sectional view of a clamp of a filter provided by Embodiment 2 of the novel creation. FIG. 11 is a cross-sectional view of the end block of the first interface portion in FIG. 10 . 12 and 13 are an isometric view and a cross-sectional view of the pipe member of the first interface portion in FIG. 10 , respectively. Fig. 14 is a cross-sectional view of the pipe provided in Figs. 11-13 after being fixed to the end block. FIG. 15 is a cross-sectional view of the filter provided by Embodiment 3 of the novel creation. 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 pipe of the first interface in FIGS. 15 and 16 . FIG. 20 is a cross-sectional view of the end block of the first interface portion in FIG. 16 . FIG. 21 is a cross-sectional view of the tube of FIG. 19 installed in the end block of FIG. 20 . FIG. 22 is a schematic structural diagram of some components of the second pipe of the second interface in FIG. 16 . Fig. 23 is a cross-sectional view of the filter provided by the fourth embodiment 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 of FIG. 25 . FIG. 28 is a cross-sectional view of the valve of FIG. 26 . FIG. 29 is a cross-sectional view of the second pipe of the second interface in FIG. 25 . FIG. 30 is a cross-sectional view of the second end block of the second interface in FIG. 25 .

1: Filter unit

10: Shell

11: The first connector

12: Second connector

2: Fixtures

21: Fixture body

22: The first interface part

23: The second interface part

24: Pipe fittings

25: Pipe fitting two

3: sealing ring

Claims (10)

A filter includes a filter unit and a clamp for clamping the filter unit and communicating with it; the filter unit includes a casing, a filter element located inside the casing, and two joints located at both ends of the casing The clamp comprises a clamp main body, and two interface parts located at both ends of the clamp main body, the two interface parts are respectively connected with the two joints to form a detachable sealing connection; it is characterized in that: at least one of the The interface part includes a pipe piece provided in a split type, the hollow interior of the pipe piece constitutes a flow channel of the interface part, one end of the pipe piece forms a sealing connection with one of the joints of the filter unit, and the The other end forms a sealed connection with the external pipeline, so as to communicate the inside of the filter unit with the external pipeline. The filter according to claim 1, wherein the interface part comprises an end block, the end block is provided with a mounting hole for installing the pipe fitting, one end of the pipe fitting has a sealing surface, and the filter unit There is a sealing ring matched with the sealing surface on the corresponding joint. The filter according to claim 2, wherein the mounting hole is a through hole, the pipe is provided with a stepped surface, and the through hole has a stepped surface matched with the stepped surface of the pipe, and the pipe is provided with a stepped surface. having an outer end that passes through the through hole and is connected to the external pipeline; or, the mounting hole is a through hole, and the pipe includes an adapter and an outer part provided in a split type, the The adapter seal is mounted on the In the through hole, the sealing surface is located at the end of the adapter piece facing the inner side of the through hole, one end of the external piece is connected to the through hole, and the other end is located at the outer end of the through hole , In order to connect with the external pipeline, the hollow interior of the adapter and the hollow interior of the outer part form a liquid-tight fluid communication, thereby forming the flow channel of the interface portion. The filter according to claim 2 or 3, wherein the sealing surface is an annular plane, the sealing ring is located at the end surface of the joint of the filter unit, and after the filter unit is installed, the sealing The ring is axially pressed by the annular planar sealing surface to form a seal. The filter of claim 4, wherein the joint includes an extension integrally formed at one end of the filter unit and a flange-shaped sealing portion located at a distal end of the extension, the sealing portion being The end has a groove in which the sealing ring is located. The filter according to claim 5, wherein the interface part further comprises a tube holder located on the inner side of the end block, and a gap between the front end of the end block and the front end of the tube holder forms a slot, so After the filter unit is installed, the flange-shaped sealing part is clamped in the clamping groove, and the pipe supports the extension part. The filter according to claim 4, wherein one end surface of the flow channel and the annular plane-shaped sealing surface are connected by a conical surface transition; The lead-in surface of the front end of the sealing surface is formed to extend obliquely outward from the place where the lead-in surface is connected with the annular plane-shaped sealing surface. The filter according to claim 2, wherein the sealing surface is a circumferential curved surface, the sealing ring is located on the outer periphery of the end of the joint of the filter unit, and after the filter unit is installed, the The sealing ring is subjected to circumferential compression between the outer circumference of the end of the joint and the circumferential curved surface to form a seal. The filter of claim 8, wherein the joint includes an extension integrally formed at one end of the filter unit and a spherical sealing portion located at the end of the extension, the sealing ring being fixed to the filter unit. the outer periphery of the sealing portion. The filter of claim 1, wherein a valve is provided on one side of the pipe, the valve includes a valve body having an internal passage and a valve located on one side of the valve body for rotating the valve body A valve stem, the valve body is sealingly installed in the flow channel of the pipe fitting.

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