Filter convenient to disassemble

Abstract

The utility model is applicable to the technical field of filters, and provides a filter convenient to disassemble, which comprises a water inlet pipe, a first shunt pipe is communicated with the end part of the water inlet pipe, two ends of the first shunt pipe are respectively communicated with two mounting cylinders, and a second shunt pipe is communicated between the end parts of the two mounting cylinders. A water outlet pipe is arranged in the middle of the second flow dividing pipe in a communicating mode, a filter element is arranged in the mounting cylinder, a fixing structure is arranged between the mounting cylinder and the filter element, and the fixing structure is used for fixedly arranging the filter element in the mounting cylinder. By arranging the fixing structure and the switching structure, the filter element can be replaced by pulling the pull rod under the condition that water flow circulation is not cut off, so that the filter element does not need to be replaced after water flow is cut off, the filter element is more convenient to replace, only one component is required to be operated by the device for switching the water flow path, and the cost is reduced. Therefore, the operation of the device is simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to filters, and more particularly to a filter that is easy to disassemble. Background Technology

[0002] A filter is an indispensable device in pipelines that transport media. It is usually installed at the inlet end of pressure reducing valves, pressure relief valves, level control valves, and other equipment. In water supply and drainage systems, water pipes usually need to be equipped with filtration devices to remove dirt and impurities from the water.

[0003] Chinese Patent Publication No. CN217188206U discloses a filter that is easy to disassemble, relating to the field of filter equipment technology. It includes a housing with an inlet pipe, and a detachable cover at the end of the housing away from the inlet pipe. A filter element is disposed inside the housing, passing through the cover. An outlet pipe is located at the end of the filter element extending outside the cover, and the end of the filter element away from the outlet abuts against the housing.

[0004] However, the above-mentioned patents have the following shortcomings:

[0005] The aforementioned patent requires the water flow channel to be shut off before the filter element can be replaced, which increases the steps required for filter element replacement and makes it inconvenient. Utility Model Content

[0006] This invention provides a filter that is easy to disassemble, aiming to solve the problem of an easy-to-disassemble filter mentioned in the background art.

[0007] This utility model is implemented as follows: a filter that is easy to disassemble includes an inlet pipe, a first diversion pipe connected to the end of the inlet pipe, two mounting cylinders connected to the two ends of the first diversion pipe respectively, a second diversion pipe connected between the ends of the two mounting cylinders, and an outlet pipe connected to the middle of the second diversion pipe.

[0008] The mounting cylinder is equipped with a filter element inside, and a fixing structure is provided between the mounting cylinder and the filter element. The fixing structure is used to fix the filter element inside the mounting cylinder.

[0009] A switching structure is provided between the first and second diversion pipes, and the switching structure is used to switch the flow path of the water.

[0010] Preferably, the fixing structure includes a first positioning ring and a sealing cover, wherein the first positioning ring is disposed inside the mounting cylinder, and the inner sidewall of the first positioning ring is fixedly connected to the inner wall of the mounting cylinder;

[0011] A second positioning ring is fixedly connected to the side wall of the sealing cover, and the sealing cover is fixedly connected to the mounting cylinder by bolts;

[0012] Both the first positioning ring and the second positioning ring are matched with the filter element.

[0013] When the filter element needs to be installed, first open the sealing cover, then place the filter element in the installation cylinder and insert one end of the filter element into the first positioning ring. Then close and fix the sealing cover and the installation cylinder. At this time, the second positioning ring on the sealing cover will be inserted into the other end of the filter element.

[0014] When it is necessary to disassemble the filter element, simply open the sealing cap to remove the filter element.

[0015] Preferably, the switching structure includes a first spherical groove and a second spherical groove. The first spherical groove is disposed inside the first diversion pipe. The first spherical groove is connected to both mounting cylinders by a first diversion groove. The first spherical groove is connected to the inlet pipe by a first guide groove. A first diversion ball is rotatably disposed inside the first spherical groove. A first guide groove is disposed through the first diversion ball. The first guide groove is L-shaped. One end of the first guide groove matches the first guide groove, and the other end of the first guide groove matches the two first diversion grooves.

[0016] The second spherical groove is disposed inside the second diversion pipe. The second spherical groove is connected to both mounting cylinders by a second diversion groove. The second spherical groove is connected to the outlet pipe by a second diversion groove. A second diversion ball is rotatably disposed inside the second spherical groove. A second guide groove is disposed through the second diversion ball. The second guide groove is L-shaped. One end of the second guide groove matches the second diversion groove, and the other end of the second guide groove matches the two second diversion grooves.

[0017] A connecting rod is fixedly connected between the first diverting ball and the second diverting ball. The connecting rod passes through the first diverting pipe and the second diverting pipe respectively. The connecting rod is rotatably connected to the first diverting pipe and the second diverting pipe. A pull rod is fixedly connected to the outer periphery of the connecting rod.

[0018] In the initial state, one end of the first guide groove in the first diverting ball inside the first spherical groove will always correspond to the first inlet groove. After rotation, the other end of the first guide groove in the first spherical groove can correspond to the two first diverting grooves respectively, or abut against the inner wall of the first spherical groove. One end of the second guide groove in the second diverting ball inside the second spherical groove will always correspond to the second inlet groove. After rotation, the other end of the second guide groove in the second spherical groove can correspond to the two second diverting grooves respectively, or abut against the inner wall of the second spherical groove.

[0019] The orientation of the end of the first guide groove away from the first diversion groove is the same as the orientation of the end of the second guide groove away from the second diversion groove;

[0020] Pulling the lever can drive the connecting rod to rotate. When the connecting rod rotates, it can simultaneously drive the first and second diverting balls to rotate synchronously. As the first and second diverting balls rotate, they will respectively drive the first and second guide channels to rotate synchronously.

[0021] When the first guide groove is in a position connected to one of the first diversion grooves, the second guide groove will also be connected to one of the second diversion grooves, and the first diversion groove connected to the first guide groove and the second diversion groove connected to the second guide groove are both connected to the same mounting cylinder.

[0022] At this time, the water flowing in through the inlet pipe will enter the mounting cylinder through the first guide groove inside the first diverting ball and then through the outer wall of the filter element into the middle of the filter element. After passing through the second diverting pipe and the second guide groove inside the second diverting ball, as well as the second drainage groove and drain pipe connected to the second guide groove, the water will be discharged, thus completing the filtration of the water flow. When the filter element needs to be replaced, pulling the lever will rotate the connecting rod, which will cause the first diverting ball and the second diverting ball to rotate synchronously. At this time, the first guide groove inside the first diverting ball will move away from the first drainage groove. The end will be connected to another first diversion channel, and at the same time, the end of the second guide channel in the second diversion ball that is away from the second diversion channel will be connected to another second diversion channel. At this time, the first diversion channel and the second diversion channel connected are the same as another installation cylinder. Therefore, the water flow entering through the inlet pipe will be filtered by the filter element in the other installation cylinder and discharged through the outlet pipe. At this time, the original installation cylinder can be taken out for replacement without affecting the normal water flow. Thus, it is not necessary to stop the water flow system before replacing the filter element, which makes it convenient to replace the installation element in the device.

[0023] Preferably, the connecting rod has a limiting structure on its outer periphery, which is used to limit the pull rod. The limiting structure includes a sliding groove and a stop ring. There are two sliding grooves, which are respectively opened on the outer periphery of two mounting cylinders. The stop ring is sleeved on the outer periphery of the connecting rod and is movably connected to the connecting rod. Sliding members are fixedly connected to both sides of the stop ring, and the two sliding members are slidably connected to the two sliding grooves respectively. A return spring is provided on one side of the stop ring. The return spring is sleeved on the outer periphery of the connecting rod and is movably connected to the connecting rod. One end of the return spring abuts against the first diverter pipe, and the other end of the return spring abuts against the stop ring. Three positioning grooves are opened on the side wall of the stop ring.

[0024] By pressing the abutment ring with the return spring, the positioning groove on the outer circumference of the abutment ring abuts against the pull rod. The pull rod has a circular cross-section. Pulling the pull rod forcefully causes it to press against the abutment ring, thereby moving the abutment ring and pressing against the return spring. At the same time, the pull rod separates from this positioning groove until the position of the pull rod matches another positioning groove. At this point, the abutment ring can be pressed against the return spring, so that the positioning groove abuts against the pull rod. In this way, the position of the pull rod can be easily positioned, thereby facilitating the control of the rotation angle of the connecting rod connected to the pull rod.

[0025] Preferably, the edges of the three positioning grooves are chamfered, the three positioning grooves are matched with the pull rod, and the end of the pull rod is fixedly connected with a protrusion;

[0026] By setting a protrusion at the end of the pull rod, it is possible to avoid the inconvenience of the user to pull the pull rod due to the end being too thin. The chamfered edge of the positioning groove facilitates the engagement of the pull rod with the positioning groove.

[0027] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a filter that is easy to disassemble.

[0028] By setting up a fixed structure and a switching structure, the filter element can be replaced without interrupting the water flow by pulling the lever. This eliminates the need to cut off the water flow before replacing the filter element, making filter element replacement more convenient. Furthermore, the device requires only one component to switch the water flow path, making the device simpler and more convenient to operate. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the fixing structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the switching structure of this utility model;

[0032] Figure 4 This is a schematic diagram of the limiting structure of this utility model.

[0033] In the picture:

[0034] 1. Inlet pipe; 11. First branch pipe; 12. Mounting cylinder; 13. Second branch pipe; 14. Outlet pipe; 15. Filter element;

[0035] 2. Fixed structure; 21. First positioning ring; 22. Sealing cap; 23. Second positioning ring;

[0036] 3. Switching structure; 31. First spherical groove; 32. Second spherical groove; 33. First diversion groove; 34. First guide groove; 35. First diversion ball; 36. First guide groove; 37. Second diversion groove; 38. Second guide groove; 39. Second diversion ball; 310. Second guide groove; 311. Connecting rod; 312. Pull rod;

[0037] 4. Limiting structure; 41. Slide groove; 42. Abutment ring; 43. Sliding component; 44. Return spring; 45. Three positioning grooves;

[0038] 5. Bumps. Detailed Implementation

[0039] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0040] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0041] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Please see Figure 1-4 The present invention provides a technical solution: a filter that is easy to disassemble, including an inlet pipe 1, a first diversion pipe 11 connected to the end of the inlet pipe 1, two mounting cylinders 12 respectively connected to the two ends of the first diversion pipe 11, a second diversion pipe 13 connected between the ends of the two mounting cylinders 12, and an outlet pipe 14 connected to the middle of the second diversion pipe 13.

[0045] The mounting cylinder 12 is provided with a filter element 15 inside, and a fixing structure 2 is provided between the mounting cylinder 12 and the filter element 15. The fixing structure 2 is used to fix the filter element 15 inside the mounting cylinder 12.

[0046] A switching structure 3 is provided between the first diversion pipe 11 and the second diversion pipe 13. The switching structure 3 is used to switch the flow path of the water.

[0047] Furthermore, the fixing structure 2 includes a first positioning ring 21 and a sealing cover 22. The first positioning ring 21 is disposed inside the mounting cylinder 12, and the inner side wall of the first positioning ring 21 is fixedly connected to the inner wall of the mounting cylinder 12.

[0048] A second positioning ring 23 is fixedly connected to the side wall of the sealing cover 22, and the sealing cover 22 is fixedly connected to the mounting cylinder 12 by bolts;

[0049] The first positioning ring 21 and the second positioning ring 23 are both matched with the filter element 15.

[0050] Furthermore, the switching structure 3 includes a first spherical groove 31 and a second spherical groove 32. The first spherical groove 31 is disposed inside the first diversion pipe 11. The first spherical groove 31 is connected to both mounting cylinders 12 by a first diversion groove 33. The first spherical groove 31 is connected to the water inlet pipe 1 by a first guide groove 34. A first diversion ball 35 is rotatably disposed inside the first spherical groove 31. A first guide groove 36 is disposed through the first diversion ball 35. The first guide groove 36 is L-shaped. One end of the first guide groove 36 matches the first guide groove 34, and the other end of the first guide groove 36 matches the two first diversion grooves 33.

[0051] The second spherical groove 32 is disposed inside the second diversion pipe 13. The second spherical groove 32 is connected to both mounting cylinders 12 by a second diversion groove 37. The second spherical groove 32 is connected to the outlet pipe 14 by a second diversion groove 38. A second diversion ball 39 is rotatably disposed inside the second spherical groove 32. A second guide groove 310 is disposed through the second diversion ball 39. The second guide groove 310 is L-shaped. One end of the second guide groove 310 matches the second diversion groove 38, and the other end of the second guide groove 310 matches the two second diversion grooves 37.

[0052] A connecting rod 311 is fixedly connected between the first diverting ball 35 and the second diverting ball 39. The connecting rod 311 passes through the first diverting pipe 11 and the second diverting pipe 13 respectively. The connecting rod 311 is rotatably connected to the first diverting pipe 11 and the second diverting pipe 13. A pull rod 312 is fixedly connected to the outer periphery of the connecting rod 311.

[0053] Furthermore, a limiting structure 4 is provided on the outer periphery of the connecting rod 311. The limiting structure 4 is used to limit the pull rod 312. The limiting structure 4 includes a sliding groove 41 and a stop ring 42. There are two sliding grooves 41, which are respectively opened on the outer periphery of the two mounting cylinders 12. The stop ring 42 is sleeved on the outer periphery of the connecting rod 311 and is movably connected to the connecting rod 311. Sliding members 43 are fixedly connected to both sides of the stop ring 42. The two sliding members 43 are slidably connected to the two sliding grooves 41 respectively. A return spring 44 is provided on one side of the stop ring 42. The return spring 44 is sleeved on the outer periphery of the connecting rod 311 and is movably connected to the connecting rod 311. One end of the return spring 44 abuts against the first diverter pipe 11, and the other end of the return spring 44 abuts against the stop ring 42. Three positioning grooves 45 are opened on the side wall of the stop ring 42.

[0054] Furthermore, the edges of the three positioning grooves 45 are all chamfered, and the three positioning grooves 45 are all matched with the pull rod 312. The end of the pull rod 312 is fixedly connected with a protrusion 5.

[0055] Working principle and usage process of this utility model:

[0056] When the filter element 15 needs to be installed, first open the sealing cover 22, then place the filter element 15 in the installation cylinder 12 and insert one end of the filter element 15 into the first positioning ring 21. Then close and fix the sealing cover 22 and the installation cylinder 12. At this time, the second positioning ring 23 on the sealing cover 22 will be inserted into the other end of the filter element 15.

[0057] When it is necessary to disassemble the filter element 15, simply open the sealing cover 22 to remove the filter element 15;

[0058] In the initial state, one end of the first guide groove 36 in the first diverting ball 35 within the first spherical groove 31 will always correspond to the first diversion groove 34. After rotation, the other end of the first guide groove 36 in the first spherical groove 31 can correspond to the two first diverting grooves 33 respectively, or abut against the inner wall of the first spherical groove 31. One end of the second guide groove 310 in the second diverting ball 39 within the second spherical groove 32 will always correspond to the second diversion groove 38. After rotation, the other end of the second guide groove 310 in the second spherical groove 32 can correspond to the two second diverting grooves 37 respectively, or abut against the inner wall of the second spherical groove 32.

[0059] The orientation of the end of the first guide groove away from the first diversion groove 34 is the same as the orientation of the end of the second guide groove away from the second diversion groove 38;

[0060] Pulling the lever 312 can drive the connecting rod 311 to rotate. When the connecting rod 311 rotates, it can simultaneously drive the first diverting ball 35 and the second diverting ball 39 to rotate synchronously. While the first diverting ball 35 and the second diverting ball 39 are rotating, they will respectively drive the first guide groove 36 and the second guide groove 310 to rotate synchronously.

[0061] When the first guide groove is in a position connected to one of the first diversion grooves 33, the second guide groove will also be connected to one of the second diversion grooves 37, and the first diversion groove 33 connected to the first guide groove and the second diversion groove 37 connected to the second guide groove are both connected to the same mounting cylinder 12.

[0062] At this time, the water flowing in through the inlet pipe 1 will enter the first guide groove in the first diverting ball 35 and then enter the first diverting groove 33 connected to it, entering the mounting cylinder 12. After passing through the outer wall of the filter element 15, it will enter the middle of the filter element 15 and then be discharged through the second guide groove in the second diverting pipe 13 and the second diverting ball 39, as well as the second diversion groove 38 connected to the second guide groove and the drain pipe, thus completing the filtration of the water flow. When the filter element 15 needs to be replaced, by pulling the pull rod 312, the connecting rod 311 can be rotated 180 degrees, which can drive the first diverting ball 35 and the second diverting ball 39 to rotate 180 degrees synchronously. At this time, the first guide groove in the first diverting ball 35 moves away from the first diverting ball 39. One end of the diversion channel 34 is connected to another first diversion channel 33, and the end of the second guide channel in the second diversion ball 39 away from the second diversion channel 38 is connected to another second diversion channel 37. At this time, the first diversion channel 33 and the second diversion channel 37 are the same as the other installation cylinder 12. Therefore, the water entering through the inlet pipe 1 will be filtered by the filter element 15 in the other installation cylinder 12 and discharged through the outlet pipe 14. At this time, the original installation cylinder 12 can be removed and replaced without affecting the normal water flow. Thus, it is not necessary to stop the water flow system before replacing the filter element 15, which makes it convenient to replace the installation in the device.

[0063] By pressing the abutment ring 42 with the return spring 44, the positioning groove 45 on the outer periphery of the abutment ring 42 can abut against the pull rod 312. The pull rod 312 has a circular cross-section. Pulling the pull rod 312 can press the abutment ring 42, thereby moving the abutment ring 42 and pressing the return spring 44. At the same time, the pull rod 312 separates from this positioning groove 45 until the position of the pull rod 312 matches another positioning groove 45. At this time, the abutment ring 42 can be repositioned by the return spring 44, so that the positioning groove 45 abuts against the pull rod 312. In this way, the position of the pull rod 312 can be easily positioned, thereby facilitating the control of the rotation angle of the connecting rod 311 connected to the pull rod 312.

Claims

1. A filter for easy disassembly comprising an inlet pipe (1), characterized in that: The first shunt pipe (11) is provided with two mounting barrels (12) at both ends, and the second shunt pipe (13) is provided between the ends of the two mounting barrels (12); the second shunt pipe (13) is provided with a water outlet pipe (14) at the middle part; The mounting barrel (12) is provided with a filter core (15) inside, and a fixing structure (2) is arranged between the mounting barrel (12) and the filter core (15), which is used for fixing the filter core (15) inside the mounting barrel (12); The first shunt pipe (11) and the second shunt pipe (13) are provided with a switching structure (3), which is used for switching the flow path of water flow.

2. A filter for facilitating removal as claimed in claim 1, wherein: The fixing structure (2) includes a first positioning ring (21) and a sealing cover (22), the first positioning ring (21) is arranged inside the mounting barrel (12), and the inner side wall of the first positioning ring (21) is fixedly connected with the inner wall of the mounting barrel (12); The sealing cover (22) is fixedly connected with a second positioning ring (23) on the side wall, and the sealing cover (22) and the mounting barrel (12) are fixedly connected through bolts; The first positioning ring (21) and the second positioning ring (23) are matched with the filter core (15).

3. A filter for facilitating removal as claimed in claim 1, wherein: The switching structure (3) includes a first spherical groove (31) and a second spherical groove (32), the first spherical groove (31) is arranged in the first shunt pipe (11), the first spherical groove (31) is provided with a first shunt groove (33) in communication between the first spherical groove (31) and the two mounting barrels (12), the first spherical groove (31) is provided with a first drainage groove (34) in communication between the first spherical groove (31) and the water inlet pipe (1), the first spherical groove (31) is rotatably provided with a first shunt ball (35) inside, the first shunt ball (35) is provided with a first flow guide groove (36) penetrating inside, the first flow guide groove (36) is L-shaped, one end of the first flow guide groove (36) is matched with the first drainage groove (34), and the other end of the first flow guide groove (36) is matched with the two first shunt grooves (33); The second spherical groove (32) is arranged in the second shunt pipe (13), the second spherical groove (32) is provided with a second shunt groove (37) in communication between the second spherical groove (32) and the two mounting barrels (12), the second spherical groove (32) is provided with a second drainage groove (38) in communication between the second spherical groove (32) and the water outlet pipe (14), the second spherical groove (32) is rotatably provided with a second shunt ball (39) inside, the second shunt ball (39) is provided with a second flow guide groove (310) penetrating inside, the second flow guide groove (310) is L-shaped, one end of the second flow guide groove (310) is matched with the second drainage groove (38), and the other end of the second flow guide groove (310) is matched with the two second shunt grooves (37); The first shunt ball (35) and the second shunt ball (39) are fixedly connected with a connecting rod (311), the connecting rod (311) penetrates the first shunt pipe (11) and the second shunt pipe (13) respectively, the connecting rod (311) is rotatably connected with the first shunt pipe (11) and the second shunt pipe (13), and the outer periphery of the connecting rod (311) is fixedly connected with a pull rod (312).

4. A filter for facilitating removal as claimed in claim 3, wherein: The connecting rod (311) is provided with a limiting structure (4) on the outer periphery, the limiting structure (4) is used for limiting the pull rod (312), the limiting structure (4) comprises a sliding groove (41) and a resisting ring (42), the number of the sliding grooves (41) is two, the two sliding grooves (41) are respectively arranged on the outer peripheries of the two mounting barrels (12), the resisting ring (42) is sleeved on the outer periphery of the connecting rod (311), the resisting ring (42) is movably connected with the connecting rod (311), the two sides of the resisting ring (42) are fixedly connected with sliding members (43), the two sliding members (43) are respectively slidably connected with the two sliding grooves (41), one side of the resisting ring (42) is provided with a reset spring (44), the reset spring (44) is sleeved on the outer periphery of the connecting rod (311), the reset spring (44) is movably connected with the connecting rod (311), one end of the reset spring (44) abuts against the first shunt pipe (11), and the other end of the reset spring (44) abuts against the resisting ring (42); three positioning grooves (45) are arranged on the side wall of the resisting ring (42).

5. A filter for facilitating removal as claimed in claim 4 wherein: The edges of the three positioning grooves (45) are all provided with chamfers, the three positioning grooves (45) are all matched with the pull rod (312), and the end of the pull rod (312) is fixedly connected with a protruding block (5).

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