Filter

Abstract

The utility model relates to the technical field of filtering equipment, in particular to a filter which comprises a first sleeve, a second sleeve, a filtering piece and a connecting piece. The filtering piece is mounted at the first connecting port of the first sleeve and / or the first matching port of the second sleeve so as to filter impurities in the fluid; the first sleeve and the second sleeve are detachably connected through a connecting piece, so that the first connecting opening is communicated with the first matching opening, and fluid flows through the first matching opening and enters the first sleeve from the first connecting opening. According to the filter provided by the utility model, the first sleeve and the second sleeve are detachably connected through the connecting piece, so that a user can more easily dismount and remount the filter assembly, and the filtering piece can be conveniently cleaned or replaced. Compared with traditional complicated and time-consuming dismounting and mounting steps, the maintenance convenience and efficiency are greatly improved through the design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtering equipment, in particular to a filter. BACKGROUND

[0002] In the current stage of technological development, as one of the key equipment for improving the purity of fluids, filtering devices have been widely used in many industries, and their importance is self-evident. Especially in the fields of metallurgy, medicine, tap water treatment and food processing, water filters play a crucial role in effectively removing impurities in water and ensuring water safety, providing high-quality water guarantee for production and life. However, the filtering devices in the prior art, especially the devices using filter cartridges for filtering, generally face a problem that needs to be solved urgently: the replacement process of the filter cartridge is relatively complex. Because the design of many water filters on the current market is relatively complicated in structure, the user needs to go through multiple steps when replacing the filter cartridge, which not only increases the difficulty and time cost of operation, but also may affect the overall use efficiency of the filter and the convenience of long-term maintenance in the process of frequent replacement. CONTENT OF THE INVENTION

[0003] The purpose of the present application is to provide a filter that can improve the installation and disassembly efficiency and improve the maintenance and replacement efficiency of the filtering element.

[0004] In order to achieve the above-mentioned purpose, the embodiments of the present application provide a filter, which comprises a first sleeve, a second sleeve, a filtering element and a connecting piece. The first sleeve has a first connecting port; the second sleeve has a first matching port, the second sleeve is connected with a fluid source, and the fluid source can provide a fluid containing undissolved impurities to the second sleeve; the filtering element is installed at the first connecting port of the first sleeve and / or at the first matching port of the second sleeve to filter the impurities in the fluid; the first sleeve and the second sleeve are detachably connected through the connecting piece to make the first connecting port and the first matching port communicate, and the fluid flows through the first matching port and enters the first sleeve from the first connecting port.

[0005] In one embodiment, the second sleeve outer wall is provided with a first stepped surface; the connecting piece comprises a third sleeve, the third sleeve comprises a threaded sleeve and a stepped sleeve coaxially arranged and fixedly connected with each other, the threaded sleeve is sleeved on the first sleeve, and in the process of forward rotation of the threaded sleeve, the threaded sleeve and the stepped sleeve move along the axial direction and approach the first sleeve, the inner wall of the stepped sleeve is provided with a second stepped surface matched with the first stepped surface, and in the process of the stepped sleeve approaching the first sleeve, the second stepped surface pushes the first stepped surface to drive the second sleeve to approach the first sleeve, thereby making the first connecting port and the first matching port communicate.

[0006] In one embodiment, the filter further comprises a lever for rotating the first sleeve, the second sleeve and / or the third sleeve.

[0007] In one embodiment, the connecting member comprises a fourth sleeve and a fifth sleeve, the fourth sleeve is sleeved on the first sleeve, the inner wall of the fourth sleeve is provided with a third stepped surface, and the outer wall of the first sleeve is provided with a fourth stepped surface matched with the third stepped surface; the fifth sleeve is sleeved on the second sleeve, the inner wall of the fifth sleeve is provided with a fifth stepped surface, and the outer wall of the second sleeve is provided with a sixth stepped surface matched with the fifth stepped surface, one end of the fourth sleeve close to the fifth sleeve is threadedly matched with one end of the fifth sleeve close to the fourth sleeve, the fourth sleeve and the fifth sleeve are screwed to make the fourth sleeve and the fifth sleeve close to each other, the third stepped surface pushes the fourth stepped surface, the fifth stepped surface pushes the sixth stepped surface, and the first sleeve and the second sleeve are close to each other, so that the first connecting port and the first matching port are communicated.

[0008] In one embodiment, the connecting member comprises a threaded rod body, and the first sleeve and the second sleeve are detachably connected through the threaded rod body; the threaded rod body is provided with at least two, and the at least two threaded rod bodies are equidistantly distributed along the circumference of the first sleeve.

[0009] In one embodiment, the connecting member comprises a hinged handle, a pull ring and a matching stopper, the hinged handle is hingedly installed on the outer wall of the first sleeve; one end of the pull ring is installed on the hinged handle; the matching stopper is installed on the second sleeve, the other end of the pull ring is installed on the matching stopper, and the hinged handle is rotated away from the second sleeve to drive the pull ring away from the second sleeve, the movement of the pull ring drives the matching stopper and the second sleeve to be close to the first sleeve, so that the first connecting port and the first matching port are communicated.

[0010] In one embodiment, the connecting member further comprises a mounting seat and a threaded pin, the mounting seat is installed on the second sleeve, the mounting seat is provided with a sliding groove, and the matching stopper is installed in the sliding groove; the threaded pin is rotationally matched with the mounting seat in the rotation direction, the threaded pin is static in the axial direction relative to the mounting seat, the threaded pin is provided in the sliding groove and is threadedly matched with the matching stopper, and the threaded pin is rotated to drive the matching stopper to be close to or away from the first sleeve.

[0011] In one embodiment, the connecting piece further comprises a first elastic member, which is capable of elastic extension and retraction, one end of the first elastic member is fixedly arranged on the hinged handle, the hinged handle is provided with a sliding through slot, the pull ring is slidingly installed at the sliding through slot and connected with the other end of the first elastic member.

[0012] In one embodiment, the filter member comprises a first stop ring and a first filter screen, the first stop ring is fixedly arranged at the first connecting port of the first sleeve, and a gap is formed between the first stop ring and the inner wall of the first sleeve; the first filter screen is arranged at the gap between the first stop ring and the first sleeve, and the first stop ring and the inner wall of the first sleeve limit the displacement of the first filter screen.

[0013] In one embodiment, the first stop ring is replaced by a hollow sleeve, the cylinder wall of the hollow sleeve is hollowly arranged, the hollow sleeve is fixedly arranged at the first connecting port of the first sleeve, and a gap is formed between the hollow sleeve and the inner wall of the first sleeve; and / or, the filter member further comprises a second stop ring and a second filter screen, the second stop ring is coaxially arranged at the first connecting port of the first sleeve with the first stop ring, the inner diameter of the first stop ring is greater than the outer diameter of the second stop ring, and a gap is formed between the first stop ring and the second stop ring; the second filter screen is arranged at the gap between the first stop ring and the second stop ring, and the first stop ring and the second stop ring limit the displacement of the second filter screen; the filter hole diameter of the second filter screen is less than or equal to the filter hole diameter of the first filter screen.

[0014] In one embodiment, the filter member comprises a first filter screen, a limiting block and a pushing structure, the first filter screen is arranged in the first sleeve and located at the first connecting port, and the inner wall at the first connecting port is a stepped surface for clamping the first filter screen; a plurality of limiting blocks are circumferentially arranged on the second sleeve around the first matching port, the limiting blocks abut one end of the first filter screen away from the first connecting port, and the end of the first filter screen abutting the limiting blocks is also provided with a stepped surface for clamping the first filter screen; the pushing structure is fixedly arranged at the first connecting port of the first sleeve, the pushing structure is oppositely arranged with the limiting block, and the pushing structure is used to abut the first filter screen.

[0015] In the above technical solution, the first sleeve and the second sleeve are detachably connected through the connecting piece, which makes it easier for users to disassemble and reinstall the filter assembly in order to clean or replace the filter member. Compared with the traditional complex and time-consuming disassembly and installation steps, this design greatly improves the convenience and efficiency of maintenance.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of one embodiment of a filter provided in this application;

[0019] Figure 2 This is a two-view structural schematic diagram of another embodiment of a filter provided in this application.

[0020] Figure 3 for Figure 2 Sectional view along the middle AA direction;

[0021] Figure 4 A three-view cross-sectional schematic diagram of another embodiment of a filter provided in this application;

[0022] Figure 5 A three-view cross-sectional schematic diagram of yet another embodiment of a filter provided in this application;

[0023] Figure 6 A three-view cross-sectional schematic diagram of another embodiment of a filter provided in this application;

[0024] Figure 7 A three-view cross-sectional schematic diagram of another embodiment of a filter provided in this application;

[0025] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0026] Figure 9 A three-view cross-sectional schematic diagram of another embodiment of a filter provided in this application;

[0027] Figure 10 A three-view cross-sectional schematic diagram of another embodiment of a filter provided in this application;

[0028] Figure 11 A three-view cross-sectional schematic diagram of one embodiment of a filter provided in this application, including a hollowed-out sleeve;

[0029] Figure 12 A four-view structural schematic diagram of a first block and sleeve of one of the embodiments of the filter provided in the embodiments of the present application;

[0030] Figure 13 A three-view cross-sectional schematic diagram of one of the embodiments of the filter provided in the embodiments of the present application, including a second sealing ring;

[0031] Figure 14 A three-view cross-sectional schematic diagram of one of the embodiments of the filter provided in the embodiments of the present application, including a limiting block and a pushing structure;

[0032] Figure 15 A four-view structural schematic diagram of one of the embodiments of the filter provided in the embodiments of the present application.

[0033] Icon:

[0034] 100 - first sleeve; 102 - first connecting port; 110 - second sleeve; 112 - first matching port; 120 - third sleeve; 122 - threaded sleeve; 124 - stepped sleeve; 130 - fourth sleeve; 140 - fifth sleeve;

[0035] 200 - threaded rod body;

[0036] 310 - hinged handle; 320 - pull ring; 330 - matching stop sheet; 340 - mounting seat; 350 - threaded pin; 360 - first elastic member;

[0037] 410 - first stop ring; 420 - first filter screen; 430 - second stop ring; 440 - second filter screen; 450 - hollow sleeve; 460 - limiting block;

[0038] 500 - first sealing ring; 510 - limiting ring; 520 - first block; 522 - first sleeve part; 524 - first torsion wing part; 530 - second sealing ring; 540 - pushing structure. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] In the description of the present application, it should be noted that the terms "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The embodiment of the present application provides a filter, which comprises a first sleeve 100, a second sleeve 110, a filter element and a connecting piece.

[0043] As shown in Figure 3 The first sleeve 100 has a first connecting port 102. The second sleeve 110 has a first matching port 112.

[0044] The second sleeve 110 is connected with a fluid source, and the fluid source can provide a fluid containing undissolved impurities to the second sleeve 110; for example, as shown in Figure 1 The first sleeve 100 is connected with a pipe, and the second sleeve 110 is connected with a pipe, and the pipe on the second sleeve 110 is connected with the fluid source, and the fluid source supplies the fluid to the second sleeve 110 through the pipe. For example, the fluid refers to a substance that can flow, and the fluid includes but is not limited to: liquid (such as sewage, etc.), gas (dust gas, etc.).

[0045] The filter element is installed at the first connecting port 102 of the first sleeve 100 to filter the impurities in the fluid; the fluid flows through the first matching port 112 and enters the first sleeve 100 from the first connecting port 102, and the filter element filters the impurities in the fluid during the flow of the fluid.

[0046] The first sleeve 100 and the second sleeve 110 are detachably connected through the connecting piece, so that the first connecting port 102 and the first matching port 112 are in communication, and the fluid flows through the first matching port 112 and enters the first sleeve 100 from the first connecting port 102.

[0047] In use, impurities will accumulate on the filter, and the filtering effect of the filter will gradually deteriorate. The first sleeve 100 and the second sleeve 110 need to be disassembled to expose the filter for cleaning and maintenance or replacement of the filter. However, in the prior art, replacing the filter requires complex disassembly and installation steps, which reduces the convenience of maintaining the filter. In the present application, the first sleeve 100 and the second sleeve 110 are detachably connected by the connecting piece, which improves the speed of installation and disassembly of the first sleeve 100 and the second sleeve 110, and improves the convenience and efficiency of the filter.

[0048] In another embodiment, the filter is installed at the first matching port 112 of the second sleeve 110. In another embodiment, the first connecting port 102 of the first sleeve 100 and the first matching port 112 of the second sleeve 110 are both provided with a filter.

[0049] As shown in Figure 2 and Figure 3 In one embodiment, the connecting piece includes a third sleeve 120, which includes a threaded sleeve 122 and a stepped sleeve 124 coaxially arranged and fixedly connected to each other. Exemplarily, the threaded sleeve 122 and the stepped sleeve 124 are fixedly connected by welding, gluing, clamping or one-piece forming, etc.

[0050] The threaded sleeve 122 is sleeved on the first sleeve 100. During forward rotation of the threaded sleeve 122, the threaded sleeve 122 and the stepped sleeve 124 move axially and approach the first sleeve 100. During the approach of the stepped sleeve 124 to the first sleeve 100, the second sleeve 110 can be pushed to approach the first sleeve 100, so that the first connecting port 102 and the first matching port 112 are communicated, and the detachable installation of the first sleeve 100 and the second sleeve 110 is realized. Fluid can flow from the second sleeve 110 to the first sleeve 100 after being filtered by the filter.

[0051] During reverse rotation of the threaded sleeve 122, the threaded sleeve 122 and the stepped sleeve 124 move axially and away from the first sleeve 100, so that the second sleeve 110 is disassembled from the first sleeve 100.

[0052] As shown in Figure 3As shown, the outer wall of the second sleeve 110 is provided with a first step surface. The inner wall of the stepped sleeve 124 is provided with a second step surface matched with the first step surface. When the stepped sleeve 124 approaches the first sleeve 100, the second step surface pushes the first step surface to drive the second sleeve 110 to approach the first sleeve 100. Exemplarily, during the process of the stepped sleeve 124 approaching the first sleeve 100, the second step surface pushes the first step surface to drive the second sleeve 110 to approach the first sleeve 100, thereby making the first connecting port 102 and the first matching port 112 communicate. The third sleeve 120 is provided, and the first sleeve 100 and the second sleeve 110 do not need to rotate relatively during the connection process, which can prevent the pipes of the first sleeve 100 and the second sleeve 110 from being twisted and ensure the passability of the fluid.

[0053] By adopting the combined design of the threaded sleeve 122 and the stepped sleeve 124 and using the threaded connection principle, the quick, convenient and detachable connection between the first sleeve 100 and the second sleeve 110 is realized. The user only needs to rotate the third sleeve 120 to complete the installation or disassembly, without the need for using complex tools or additional auxiliary equipment, thereby greatly improving the convenience and efficiency of the operation.

[0054] The threaded connection itself has a self-locking feature, which can prevent the connected parts from being accidentally loosened or falling off due to external factors (such as vibration, pressure change, etc.) to a certain extent. In addition, through the cooperation of the second step surface of the stepped sleeve 124 and the first step surface of the second sleeve 110, the stability and reliability of the connection are further enhanced, ensuring that the fluid will not leak during the transmission process due to the problem of the connection.

[0055] As shown in Figure 1 and Figure 2 In one embodiment, the outer wall of the first sleeve 100 is provided with a clamping surface, and the clamping surface is provided to facilitate the clamping of the first sleeve 100 by a wrench. As shown in Figure 12 In another embodiment, the clamping surface of the first sleeve 100 is provided with a first wrench block 520, and the first wrench block 520 is clamped and matched with the clamping surface of the first sleeve 100. By rotating the first wrench block 520, the first sleeve 100 is driven to rotate. Exemplarily, the first wrench block 520 includes a first sleeve part 522 and a first torsion wing part 524, and the first sleeve part 522 is fixedly connected with the first torsion wing part 524. Exemplarily, the first sleeve part 522 and the first torsion wing part 524 are fixedly connected by welding, gluing, clamping, threaded connection or one-piece forming, etc.

[0056] The inner wall of the first sleeve part 522 is configured as a wall surface capable of being clamped with the clamping surface of the first sleeve 100. Rotating the first torsion wing part 524 drives the first sleeve part 522 to rotate, and the rotation of the first sleeve part 522 drives the first sleeve 100 to rotate. In an example, a plurality of first torsion wing parts 524 are arranged circumferentially on the first sleeve part 522. In other embodiments, the first sleeve part 522 and the first sleeve 100 are fixedly connected by welding, gluing, riveting, threaded connection, or one-piece forming, etc.

[0057] In an embodiment, the outer wall of the second sleeve 110 is provided with a clamping surface, which facilitates clamping the second sleeve 110 with a wrench. In another embodiment, the clamping surface of the second sleeve 110 is clamped with a second wrench block, and the second wrench block includes a second sleeve part and a second torsion wing part, which are fixedly connected. In an example, the second sleeve part and the second torsion wing part are fixedly connected by welding, gluing, clamping, threaded connection, or one-piece forming, etc.

[0058] The inner wall of the second sleeve part is configured as a wall surface capable of being clamped with the clamping surface of the second sleeve 110. Rotating the second torsion wing part drives the second sleeve part to rotate, and the rotation of the second sleeve part drives the second sleeve 110 to rotate. In an example, a plurality of second torsion wing parts are arranged circumferentially on the second sleeve part. In other embodiments, the second sleeve part and the second sleeve 110 are fixedly connected by welding, gluing, riveting, threaded connection, or one-piece forming, etc.

[0059] In an embodiment, the outer wall of the threaded sleeve 122 and / or the stepped sleeve 124 of the third sleeve 120 is provided with a clamping surface, which facilitates clamping the third sleeve 120 with a wrench. In another embodiment, the clamping surface of the third sleeve 120 is provided with a third wrench block, and the rotation of the third wrench block drives the third sleeve 120 to rotate. In an example, the third wrench block includes a third sleeve part and a third torsion wing part, which are fixedly connected. In an example, the third sleeve part and the third torsion wing part are fixedly connected by welding, gluing, clamping, threaded connection, or one-piece forming, etc.

[0060] The third sleeve part is sleeved on the clamping surface of the third sleeve 120, and the inner wall of the third sleeve part is configured as a wall surface capable of being clamped with the clamping surface of the third sleeve 120. Rotating the third torsion wing part drives the third sleeve part to rotate, and the rotation of the third sleeve part drives the third sleeve 120 to rotate. In other embodiments, the third sleeve part and the third sleeve 120 are fixedly connected by welding, gluing, riveting, threaded connection, or one-piece forming, etc. Figure 3 or Figure 13 In an embodiment, the first sleeve 100 and the second sleeve 110 are sealingly connected. In an example, as shown inFigure 3 As shown, a first sealing ring 500 is arranged between the end face of the first sleeve 100 close to the second sleeve 110 and the end face of the second sleeve 110 close to the first sleeve 100, and the first sleeve 100 and the second sleeve 110 are end face sealed by the arranged first sealing ring 500.

[0061] As shown, a first sealing ring 500 is arranged between the end face of the first sleeve 100 close to the second sleeve 110 and the end face of the second sleeve 110 close to the first sleeve 100, and the first sleeve 100 and the second sleeve 110 are end face sealed by the arranged first sealing ring 500. Figure 13 As shown, but in another embodiment, a second sealing ring 530 is arranged between the side wall of the first sleeve 100 and the side wall of the second sleeve 110, and the side wall of the first sleeve 100 and the side wall of the second sleeve 110 are sealed by the second sealing ring 530, so that the first sleeve 100 and the second sleeve 110 are radially sealed by the arranged second sealing ring 530.

[0062] The technical scheme of arranging the third sleeve 120 in the above embodiment can also be replaced by the following technical scheme: as shown, Figure 4 In one embodiment, the connecting piece includes a fourth sleeve 130 and a fifth sleeve 140.

[0063] The fourth sleeve 130 is sleeved on the first sleeve 100, and a third stepped surface is arranged on the inner wall of the fourth sleeve 130, and a fourth stepped surface is arranged on the outer wall of the first sleeve 100 and matched with the third stepped surface; the fifth sleeve 140 is sleeved on the second sleeve 110, and a fifth stepped surface is arranged on the inner wall of the fifth sleeve 140, and a sixth stepped surface is arranged on the outer wall of the second sleeve 110 and matched with the fifth stepped surface, and one end of the fourth sleeve 130 close to the fifth sleeve 140 is threadedly matched with one end of the fifth sleeve 140 close to the fourth sleeve 130, and the fourth sleeve 130 and the fifth sleeve 140 are tightened to make the fourth sleeve 130 and the fifth sleeve 140 close to each other, the third stepped surface pushes the fourth stepped surface, and the fifth stepped surface pushes the sixth stepped surface, so that the first sleeve 100 and the second sleeve 110 are close to each other, and then the first connecting port 102 and the first matching port 112 are communicated.

[0064] Through the threaded matching of the fourth sleeve 130 and the fifth sleeve 140, and the stepped surface matching of each of them with the first sleeve 100 and the second sleeve 110, a more stable connection is achieved. This double matching mechanism not only increases the strength of the connection, but also reduces the risk of loose connection or leakage caused by vibration or external force.

[0065] The technical scheme of arranging the third sleeve 120 in the above embodiment can also be replaced by the following technical scheme: as shown, Figure 5 In one embodiment, the first sleeve 100 and the second sleeve 110 are bolted.

[0066] For example, the connector includes a threaded rod 200, the outer wall of which is threaded. The threaded rod 200 simultaneously engages with a first sleeve 100 and a second sleeve 110. The external threads on the threaded rod 200 that engage with the first sleeve 100 and the external threads on the threaded rod 200 that engage with the second sleeve 110 have opposite directions of rotation. During use, the threaded rod 200 rotates forward, bringing the first sleeve 100 and the second sleeve 110 closer together to connect them. The threaded rod 200 rotates in the opposite direction, moving the first sleeve 100 and the second sleeve 110 away from each other to disengage them.

[0067] In another embodiment, one end of the threaded rod 200 is rotatably engaged with the first sleeve 100, and the threaded rod 200 is stationary relative to the first sleeve 100 in the axial direction. The other end of the threaded rod 200 is threadedly engaged with the second sleeve 110. During use, the threaded rod 200 rotates forward, causing the second sleeve 110 to move closer to the first sleeve 100, thus connecting the first sleeve 100 and the second sleeve 110. The threaded rod 200 rotates in the reverse direction, causing the second sleeve 110 to move away from the first sleeve 100, thus disengaging the first sleeve 100 and the second sleeve 110.

[0068] For example, a locking block is provided on one end of the threaded rod 200 to facilitate the wrench to engage and tighten the threaded rod 200.

[0069] like Figure 5 As shown, in one embodiment, at least two threaded rods 200 are provided, and the at least two threaded rods 200 are equidistantly distributed along the circumference of the first sleeve 100.

[0070] For example, two threaded rods 200 are provided, and the two threaded rods 200 are equidistantly distributed along the circumference of the first sleeve 100. In another embodiment, three threaded rods 200 are provided, and the three threaded rods 200 are equidistantly distributed along the circumference of the first sleeve 100. In another embodiment, four threaded rods 200 are provided, and the four threaded rods 200 are equidistantly distributed along the circumference of the first sleeve 100. In yet another embodiment, five threaded rods 200 are provided, and the five threaded rods 200 are equidistantly distributed along the circumference of the first sleeve 100.

[0071] The technical solution of providing the third sleeve 120 in the above embodiments can also be replaced by the following technical solutions: such as Figure 6 As shown, in one embodiment, the connector includes a hinged handle 310, a pull ring 320, and a mating baffle 330.

[0072] The hinged handle 310 is hinged to the outer wall of the first sleeve 100, and the hinged handle 310 can tilt and rotate relative to the axis of the first sleeve 100.

[0073] One end of the pull ring 320 is mounted on the hinged handle 310, and the hinged handle 310 is reversibly rotated to drive the pull ring 320 away from or close to the first sleeve 100.

[0074] The matching stopper 330 is mounted on the second sleeve 110, and in an exemplary embodiment, the matching stopper 330 is fixedly arranged on the second sleeve 110 by welding, gluing, clamping or bolt connection, etc.

[0075] The other end of the pull ring 320 is mounted on the matching stopper 330, and the hinged handle 310 is rotated away from the second sleeve 110 to drive the pull ring 320 away from the second sleeve 110, and the movement of the pull ring 320 drives the matching stopper 330 and the second sleeve 110 to close to the first sleeve 100, so as to make the first connecting port 102 and the first matching port 112 communicate.

[0076] The hinged handle 310 can be inclinedly rotated relative to the axis of the first sleeve 100, and such a design enables the user to connect or disconnect the first sleeve 100 and the second sleeve 110 by simply rotating the hinged handle 310, so that the connection and disconnection process is more simple and fast.

[0077] As shown in the drawings, Figure 7 In an embodiment, the connecting member further comprises a mounting seat 340 and a threaded pin 350.

[0078] The mounting seat 340 is mounted on the second sleeve 110, and in an exemplary embodiment, the mounting seat 340 is fixedly arranged on the second sleeve 110 by gluing, welding, bolt connection or clamping, etc.

[0079] The mounting seat 340 is provided with a sliding groove, and the matching stopper 330 is mounted in the sliding groove, so that the matching stopper 330 can slide in the sliding groove to adjust the position of the matching stopper 330, and further adjust the tightness of the connection between the first sleeve 100 and the second sleeve 110.

[0080] The threaded pin 350 is rotationally matched with the mounting seat 340 in the rotation direction, and the threaded pin 350 is stationary relative to the axial direction of the mounting seat 340, the threaded pin 350 is provided in the sliding groove and is threadedly matched with the matching stopper 330, and the threaded pin 350 is rotated to drive the matching stopper 330 to close to or away from the first sleeve 100 in the sliding groove, so as to adjust the position of the matching stopper 330.

[0081] By providing the sliding groove on the mounting seat 340 and allowing the matching stopper 330 to slide in the sliding groove, the position of the matching stopper 330 can be conveniently adjusted, so that the tightness of the connection between the first sleeve 100 and the second sleeve 110 can be adjusted as needed, thereby improving the flexibility and adaptability of the connection.

[0082] As shown in the drawings,Figure 8 As shown in the drawings, in one embodiment, the connecting piece further comprises a first elastic member 360, which is capable of elastic extension and retraction, one end of the first elastic member 360 is fixedly arranged on the hinged handle 310, the hinged handle 310 is provided with a sliding through slot, the pull ring 320 is slidingly installed at the sliding through slot and connected with the other end of the first elastic member 360.

[0083] In use, the pull ring 320 is sleeved on the matching blocking piece 330, when the hinged handle 310 is rotated away from the second sleeve 110, the hinged handle 310 drives the pull ring 320 to move away from the second sleeve 110, the pull ring 320 drives the matching blocking piece 330 to move towards the first sleeve 100, the matching blocking piece 330 moves and drives the second sleeve 110 to move towards the first sleeve 100 through the mounting seat 340, thereby connecting the second sleeve 110 with the first sleeve 100. At the same time, the second sleeve 110 is subjected to the reaction force of the first sleeve 100 and is applied to the first elastic member 360 through the mounting seat 340, the matching blocking piece 330 and the pull ring 320, the first elastic member 360 is compressed after being subjected to the force of the pull ring 320, and the first elastic member 360 is arranged to prevent the pull ring 320 from being damaged due to excessive stretching. If it is necessary to replace the filter element, the hinged handle 310 is only needed to be rotated towards the second sleeve 110, the hinged handle 310 drives the pull ring 320 to move towards the second sleeve 110, the first elastic member 360 is retracted, and then the pull ring 320 is removed from the matching blocking piece 330, thereby completing the disassembly.

[0084] As shown in the drawings, Figure 3 or Figure 5 In one embodiment, the filter element comprises a first blocking ring 410 and a first filter screen 420.

[0085] As shown in the drawings, Figure 3 or Figure 5 The first blocking ring 410 is fixedly arranged at the first connecting port 102 of the first sleeve 100, and the first blocking ring 410 is fixedly arranged at the first connecting port 102 of the first sleeve 100 by welding, gluing or one-piece forming, and the like.

[0086] The first blocking ring 410 has a gap with the inner wall of the first sleeve 100.

[0087] The first filter screen 420 is arranged at the gap between the first blocking ring 410 and the first sleeve 100, and the first blocking ring 410 and the inner wall of the first sleeve 100 limit the displacement of the first filter screen 420.

[0088] The first stop ring 410 is provided to prevent the first filter screen 420 from being installed incorrectly in the reverse direction, thus serving as a foolproof measure. Furthermore, the first stop ring 410 and the inner wall of the first sleeve 100 restrict the position of the first filter screen 420, preventing it from becoming loose and reducing its filtration efficiency.

[0089] like Figure 3 As shown, in one embodiment, an annular groove is formed on the inner wall of the first sleeve 100 near the first filter screen 420. A limiting ring 510 is provided in the annular groove, and the limiting ring 510 abuts against both the inner wall of the annular groove and the first filter screen 420. The limiting ring 510 can restrict the displacement of the first filter screen 420 and prevent the first filter screen 420 from loosening. For example, the limiting ring 510 is made of a flexible material, such as rubber or silicone. In another embodiment, the limiting ring 510 in the above embodiment can also be replaced by a protrusion made of a flexible material.

[0090] like Figure 9 As shown, in another embodiment, the filter element further includes a second stop ring 430 and a second filter screen 440.

[0091] The second stop ring 430 and the first stop ring 410 are coaxially disposed at the first connection port 102 of the first sleeve 100. The inner diameter of the first stop ring 410 is larger than the outer diameter of the second stop ring 430, and there is a gap between the first stop ring 410 and the second stop ring 430.

[0092] The second filter 440 is disposed in the gap between the first stop ring 410 and the second stop ring 430, and the first stop ring 410 and the second stop ring 430 restrict the displacement of the second filter 440.

[0093] The first stop ring 410 and the second stop ring 430 prevent the second filter 440 from being installed incorrectly in the reverse direction. Furthermore, the first stop ring 410 and the second stop ring 430 prevent the second filter 440 from becoming loose, ensuring effective filtration. The combination of the first filter 420 and the second filter 440 provides a dual-layer filtration effect, improving filtration accuracy.

[0094] In one embodiment, the pore diameter of the second filter 440 is smaller than that of the first filter 420. In another embodiment, the pore diameter of the second filter 440 is equal to that of the first filter 420.

[0095] like Figure 10 As shown, in another embodiment, the first sleeve 100 and the second sleeve 110 are threaded together.

[0096] like Figure 11 As shown, in another embodiment, the technical solutions of the first stop ring 410 and the first filter screen 420 in the above embodiments can also be replaced by the following technical solutions:

[0097] As shown in Figure 11 , the filter piece includes a hollow sleeve 450 and a first filter screen 420.

[0098] As shown in Figure 11 , the hollow sleeve 450 is fixedly arranged at the first connecting port 102 of the first sleeve 100. For example, the hollow sleeve 450 is fixedly arranged at the first connecting port 102 of the first sleeve 100 by welding, gluing or one-piece forming.

[0099] The hollow sleeve 450 has a gap with the inner wall of the first sleeve 100.

[0100] The first filter screen 420 is arranged at the gap between the hollow sleeve 450 and the first sleeve 100, and the inner wall of the hollow sleeve 450 and the first sleeve 100 limits the displacement of the first filter screen 420. By arranging the hollow sleeve 450, the first filter screen 420 can be supported, and the deformation resistance of the first filter screen 420 is improved.

[0101] As shown in Figure 14 and Figure 15 , in another embodiment, the technical solution of the filter piece in the above embodiment including the first stop ring 410 and the first filter screen 420 can be replaced by the following technical solution:

[0102] The filter piece includes a first filter screen 420 and a limiting block 460; as shown in Figure 14 , the first filter screen 420 is arranged in the first sleeve 100 and located at the first connecting port 102. The inner wall of the first connecting port 102 is a stepped surface, and the stepped surface of the first connecting port 102 is connected with the first filter screen 420 to limit the axial and radial displacement of the first filter screen 420.

[0103] As shown in Figure 15 , the limiting block 460 is arranged at the first matching port 112 of the second sleeve 110, and the limiting block 460 is arranged axially around the first matching port 112. Figure 14 As shown in Figure 15 , the limiting block 460 abuts against one end of the first filter screen 420 away from the first connecting port 102; as shown in , the limiting block 460 abuts against one end of the first filter screen 420, and the one end of the first filter screen 420 is also provided with a stepped surface. The stepped surface of the limiting block 460 and the stepped surface of the first connecting port 102 of the first sleeve 100 jointly limit the axial displacement and the radial displacement of the first filter screen 420.

[0104] As shown in Figure 14As shown, in the embodiment, the filter member further comprises a pushing structure 540 arranged at the first connecting port 102 of the first sleeve 100, the pushing structure 540 is arranged opposite to the limiting block 460, and the pushing structure 540 abuts against the opening of the first filter screen 420.

[0105] Exemplarily, the pushing structure 540 is a ring body; but in another embodiment, the pushing structure 540 is a block structure arranged in at least two parts.

[0106] Exemplarily, the pushing structure 540 is fixedly arranged at the first connecting port 102 of the first sleeve 100 by means of gluing, welding, clamping, bolt connection or one-piece forming, etc.

[0107] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0108] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter, characterized by, Comprise: A first sleeve (100) having a first connecting port (102); A second sleeve (110) having a first matching port (112), the second sleeve (110) is connected with a fluid source, the fluid source is capable of providing a fluid containing undissolved impurities to the second sleeve (110); A filter installed at the first connecting port (102) of the first sleeve (100) and / or the first matching port (112) of the second sleeve (110) to filter the impurities in the fluid; A connecting piece, the first sleeve (100) and the second sleeve (110) are detachably connected through the connecting piece, so that the first connecting port (102) and the first matching port (112) are communicated, and the fluid flows through the first matching port (112) and enters the first sleeve (100) from the first connecting port (102).

2. The filter of claim 1, wherein, A first step surface is arranged on the outer wall of the second sleeve (110); The connecting piece comprises: A third sleeve (120) comprising a threaded sleeve (122) and a stepped sleeve (124) coaxially arranged and fixedly connected with each other, the threaded sleeve (122) is sleeved on the first sleeve (100), during the forward rotation of the threaded sleeve (122), the threaded sleeve (122) and the stepped sleeve (124) move axially and approach the first sleeve (100), a second step surface is arranged on the inner wall of the stepped sleeve (124) and matches the first step surface, during the approach of the stepped sleeve (124) to the first sleeve (100), the second step surface pushes the first step surface to drive the second sleeve (110) to approach the first sleeve (100), thereby making the first connecting port (102) and the first matching port (112) communicated.

3. The filter of claim 2, wherein, It also comprises a toggle block for driving the rotation of the first sleeve (100), the second sleeve (110) and / or the third sleeve (120).

4. The filter of claim 1, wherein, The connecting piece comprises: A fourth sleeve (130) sleeved on the first sleeve (100), a third step surface is arranged on the inner wall of the fourth sleeve (130), and a fourth step surface matching the third step surface is arranged on the outer wall of the first sleeve (100); A fifth sleeve (140) is sleeved on the second sleeve (110), an inner wall of the fifth sleeve (140) is provided with a fifth stepped surface, an outer wall of the second sleeve (110) is provided with a sixth stepped surface matched with the fifth stepped surface, one end of the fourth sleeve (130) close to the fifth sleeve (140) is threadedly matched with one end of the fifth sleeve (140) close to the fourth sleeve (130), the fourth sleeve (130) and the fifth sleeve (140) are screwed to make the fourth sleeve (130) and the fifth sleeve (140) close to each other, the third stepped surface pushes the fourth stepped surface, the fifth stepped surface pushes the sixth stepped surface, so that the first sleeve (100) and the second sleeve (110) close to each other, and the first connecting port (102) and the first matched port (112) are communicated.

5. The filter of claim 1, wherein, The connecting piece comprises: A threaded rod body (200), the first sleeve (100) and the second sleeve (110) are detachably connected through the threaded rod body (200); The threaded rod body (200) is provided at least two, and the at least two threaded rod bodies (200) are equidistantly distributed along the circumference of the first sleeve (100).

6. The filter of claim 1, wherein, The connecting piece comprises: A hinged handle (310) is hingedly installed on the outer wall of the first sleeve (100); A pull ring (320) is installed on the hinged handle (310); A matched blocking piece (330) is installed on the second sleeve (110), the other end of the pull ring (320) is installed on the matched blocking piece (330), the hinged handle (310) is turned away from the second sleeve (110) to drive the pull ring (320) away from the second sleeve (110), the pull ring (320) is moved to drive the matched blocking piece (330) and the second sleeve (110) to close to the first sleeve (100), so that the first connecting port (102) and the first matched port (112) are communicated.

7. The filter of claim 6, wherein The connecting piece further comprises: A mounting seat (340) is installed on the second sleeve (110), the mounting seat (340) is provided with a sliding groove, the matched blocking piece (330) is installed in the sliding groove; A threaded pin (350) is rotationally matched with the mounting seat (340) in the rotation direction, the threaded pin (350) is static relative to the mounting seat (340) in the axial direction, the threaded pin (350) is provided in the sliding groove and is threadedly matched with the matched blocking piece (330), the threaded pin (350) is rotated to drive the matched blocking piece (330) to close to or away from the first sleeve (100).

8. The filter of claim 7, wherein, The connecting piece further comprises: A first elastic member (360) is provided, which is capable of elastic expansion and contraction. One end of the first elastic member (360) is fixedly arranged on the hinged handle (310). The hinged handle (310) is provided with a sliding through slot. The pull ring (320) is slidingly arranged at the sliding through slot and is connected with the other end of the first elastic member (360).

9. The filter according to any one of claims 1 to 8, characterized in that The filter element comprises: A first stop ring (410) is fixedly arranged at the first connecting port (102) of the first sleeve (100). A gap is formed between the first stop ring (410) and the inner wall of the first sleeve (100). A first filter screen (420) is arranged at the gap between the first stop ring (410) and the first sleeve (100). The first stop ring (410) and the inner wall of the first sleeve (100) limit the displacement of the first filter screen (420).

10. The filter of claim 9, wherein, The first stop ring (410) is replaced by a hollow sleeve (450). The sleeve wall of the hollow sleeve (450) is hollow. The hollow sleeve (450) is fixedly arranged at the first connecting port (102) of the first sleeve (100). A gap is formed between the hollow sleeve (450) and the inner wall of the first sleeve (100). And / or, the filter element further comprises a second stop ring (430) and a second filter screen (440). The second stop ring (430) is coaxially arranged at the first connecting port (102) of the first sleeve (100) with the first stop ring (410). The inner diameter of the first stop ring (410) is greater than the outer diameter of the second stop ring (430). A gap is formed between the first stop ring (410) and the second stop ring (430). The second filter screen (440) is arranged at the gap between the first stop ring (410) and the second stop ring (430). The first stop ring (410) and the second stop ring (430) limit the displacement of the second filter screen (440). The filter hole diameter of the second filter screen (440) is less than or equal to the filter hole diameter of the first filter screen (420).

11. The filter according to any one of claims 1 to 8, characterized in that The filter element comprises: A first filter screen (420) is arranged in the first sleeve (100) and located at the first connecting port (102). The inner wall at the first connecting port (102) is a stepped surface for clamping the first filter screen (420). A plurality of limiting blocks (460) are circumferentially arranged on the second sleeve (110) around the first matching port (112). The limiting blocks (460) abut one end of the first filter screen (420) away from the first connecting port (102). The one end of the first filter screen (420) to which the limiting blocks (460) abut is also provided with a stepped surface for clamping the first filter screen (420). A pushing structure (540) is fixedly arranged at the first connecting port (102) of the first sleeve (100), the pushing structure (540) is arranged opposite to the limiting block (460), and the pushing structure (540) is used for abutting against the first filter screen (420).

Images