A large capacity disposable liquid filter bag

Abstract

The application discloses a large-capacity replaceable liquid filtering bag, which comprises an L-shaped water inlet pipe, a fixed block is fixed to the side of the L-shaped water inlet pipe, connecting pipes are fixed to the two ends of the fixed plate, a spring is arranged at the bottom of the vertical rod, and the two ends of the spring are connected with the fixed block and the fixed plate respectively; and a clamping assembly is arranged at the top of the fixed block. The large-capacity replaceable liquid filtering bag is provided with connecting pipes and a driving assembly, two groups of connecting pipes and filtering bags are arranged, when the filtering bags are replaced, the fixed plate is pulled downward to drive the two groups of connecting pipes and the filtering bags to descend, then the fixed plate is rotated, and the replacement of the new and old filtering bags can be completed quickly, and the replacement efficiency is high; in addition, before the filtering bags are replaced, the sealing plate can be driven to ascend by the driving assembly, so that the sealing plate can seal the bottom of the L-shaped water inlet pipe, and then the residual sewage in the L-shaped water inlet pipe can be prevented from flowing out and causing pollution when the new and old filtering bags are replaced, and the practicability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid filtering equipment, and particularly relates to a large-capacity liquid filtering bag easy to replace. BACKGROUND

[0002] In recent years, due to industrial sewage discharge and waste of water resources, recycling of water resources is particularly important. Liquid filtering equipment can separate impurities in liquid, effectively filter sewage, improve water quality, and promote water circulation system.

[0003] A liquid filtering bag easy to replace and prevent deformation is disclosed in Chinese Patent No. CN216537211U. The liquid filtering bag is not convenient to install and disassemble, which leads to the problem that the filtering bag is complicated to clean and replace after multiple uses. The present application proposes the following scheme. The liquid filtering bag easy to replace and prevent deformation comprises a support table, a metal filtering frame and a filtering bag body. A mounting hole is fixedly installed on the top of the support table. The metal filtering frame is fixedly installed in the mounting hole. A mounting seat is fixedly installed on the left and right sides of the metal filtering frame. A connecting plate is fixedly installed on the top of the filtering bag body. Two rectangular grooves are formed in the bottom of the mounting seat.

[0004] In summary, the above-mentioned patent realizes the installation and disassembly of the filtering bag body and the metal filtering frame through the clamping cooperation of the plug and the inner wall of the connecting plate. Since the valve of the sewage pipeline needs to be closed when replacing the old and new filtering bags, the disassembly of the old filtering bag and the installation of the new filtering bag will be separated by a period of time. The above-mentioned patent needs a long time to replace the old and new filtering bags, which may cause the sewage remaining in the pipeline to leak and pollute the environment. SUMMARY

[0005] The present application aims to provide a large-capacity liquid filtering bag easy to replace, which can solve the problem that the above-mentioned patent needs a long time to replace the old and new filtering bags, which may cause the sewage remaining in the pipeline to leak and pollute the environment.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a large-capacity liquid filtering bag easy to replace, comprising an L-shaped water inlet pipe,

[0007] A fixed block is fixedly installed on the side of the L-shaped water inlet pipe. A vertical rod is penetratingly arranged on the fixed block. A conical rod and a fixed plate are respectively fixed on the upper and lower ends of the vertical rod. Connecting pipes are fixed on both ends of the fixed plate. The connecting pipes are sleeved on the bottom of the L-shaped water inlet pipe. A filtering bag is arranged on the bottom of the connecting pipe. A spring is sleeved on the bottom of the vertical rod. The both ends of the spring are connected with the fixed block and the fixed plate.

[0008] The top of the fixed block is provided with a clamping assembly, the inner side of the L-shaped water inlet pipe is provided with an initial filtering assembly, the bottom of the L-shaped water inlet pipe is provided with a blocking plate, and the top midpoint of the blocking plate is fixed with a vertical rod.

[0009] The inner side of the L-shaped water inlet pipe is provided with a driving assembly below, which is used to drive the blocking plate to move vertically.

[0010] By adopting the above technical scheme, when the old filter bag is disassembled, the fixed plate is pulled down to drive the connecting pipes at both ends and the filter bag to descend, the connecting pipe A and the old filter bag are separated from the bottom of the L-shaped water inlet pipe, at this time, the fixed plate is rotated to drive the connecting pipe A and the old filter bag to move to the side of the L-shaped water inlet pipe, and the connecting pipe B at the other end of the fixed plate and the new filter bag are rotated to the lower side of the L-shaped water inlet pipe, then the fixed plate is loosened, at this time, the spring on the vertical rod drives the vertical rod and the fixed plate to rise, and drives the connecting pipe B and the new filter bag to move upwards, so that the connecting pipe B is sleeved on the bottom of the L-shaped water inlet pipe, and the replacement of the new and old filter bags is completed. The replacement speed of the new and old filter bags is fast, the replacement time is shortened, and the situation that the residual sewage in the pipeline leaks out can be avoided.

[0011] Preferably, the clamping assembly comprises a hand wheel, the hand wheel is installed on the outer side of the fixed block, a recess is formed in the upper surface of the fixed block, a lead screw is installed in the recess, and L-shaped clamping blocks are threadedly connected to both ends of the lead screw, the L-shaped clamping blocks are in sliding connection with the inner wall of the recess, and an arc-shaped groove is formed in the top of the L-shaped clamping blocks.

[0012] By adopting the above technical scheme, after the new filter bag is replaced, the spring drives the vertical rod and the fixed plate to rise, and drives the connecting pipe and the new filter bag to be sleeved on the bottom of the L-shaped water inlet pipe, then the hand wheel is rotated to drive the lead screw to rotate, so that the lead screw drives the two groups of L-shaped clamping blocks threadedly connected thereto to move close to each other, so as to clamp and fix the tapered rod on the top of the vertical rod, thereby preventing the vertical rod from descending to cause the connecting pipe and the new filter bag to fall off from the bottom of the L-shaped water inlet pipe. In addition, since the arc-shaped groove on the top of the L-shaped clamping block abuts against the tapered rod and is extruded, the tapered rod is upwardly pressed, so as to generate an upward force on the vertical rod, the fixed plate and the connecting pipe, the connecting pipe is extruded upwardly on the bottom of the L-shaped water inlet pipe, and the connection effect between the connecting pipe and the L-shaped water inlet pipe is improved, and the situation of water leakage is avoided.

[0013] Preferably, the initial filtering assembly comprises a filtering inclined plate, the filtering inclined plate is fixed on the inner side of the L-shaped water inlet pipe, a discharge port is formed in the side of the L-shaped water inlet pipe, a collecting box is arranged on the outer side of the discharge port, and a vibrating assembly is further arranged below the filtering inclined plate.

[0014] By adopting the technical scheme, the top of the L-shaped water inlet pipe is a water inlet end, after sewage enters the inside of the L-shaped water inlet pipe, the filter inclined plate can filter larger impurities in the sewage, thereby avoiding damage of large-particle impurities to the filter bag, and further, the vibration assembly can vibrate the filter inclined plate when the sewage flows, so as to make the impurities on the filter inclined plate slide into the discharge port by vibration and fall into the collecting box from the discharge port, thereby facilitating cleaning of the impurities on the filter inclined plate, avoiding influence of impurity accumulation on the flow effect of the sewage, and improving the practicality.

[0015] Preferably, the vibration assembly comprises a sleeve fixed to the inner wall of the L-shaped water inlet pipe, and a vibration rod arranged in the sleeve, a limiting ring fixed above the vibration rod, and a support one fixed in the inside of the L-shaped water inlet pipe, and a self-driving assembly arranged on the support one and used for driving the vibration rod to move vertically.

[0016] By adopting the technical scheme, when the sewage flows, the self-driving assembly generates upward force on the vibration rod, so as to make the vibration rod move vertically in the sleeve, thereby enabling the top of the vibration rod to continuously hit the filter inclined plate, and enabling the impurities on the filter inclined plate to slide into the collecting box, and the limiting ring can prevent the vibration rod from being detached from the bottom of the sleeve, so as to limit the vibration rod.

[0017] Preferably, the inner wall of the sleeve is provided with a plurality of groups of balls, and the balls are in contact with the outer wall of the vibration rod, and the bottom of the vibration rod is provided with a ball.

[0018] By adopting the technical scheme, the balls can reduce the friction of the vibration rod when moving vertically in the sleeve, and the ball can reduce the friction borne by the bottom of the vibration rod, thereby achieving the purposes of reducing wear and improving service life.

[0019] Preferably, the self-driving assembly comprises a rotating rod penetratingly arranged at the midpoint of the support one through a bearing, and a lightweight horizontal plate and an impeller respectively fixed to the upper and lower ends of the rotating rod, and a conical block fixed to the top of the lightweight horizontal plate.

[0020] By adopting the technical scheme, when the sewage flows in the inside of the L-shaped water inlet pipe, the flowability of the sewage drives the impeller and the rotating rod to rotate, when the rotating rod rotates, the lightweight horizontal plate and the conical block at the top of the rotating rod are driven to rotate, so that the conical block continuously hits the bottom of the vibration rod, thereby driving the vibration rod to continuously hit the filter inclined plate, and the technical scheme can drive the vibration rod to move vertically in the sleeve without a driving source, so as to make the vibration rod hit the filter inclined plate to clean the accumulated impurities, and improve the functionality.

[0021] Preferably, the driving assembly comprises a screw rod, the screw rod is arranged through the side of the L-shaped water inlet pipe, a movable block is rotatably connected on the screw rod, the L-shaped water inlet pipe is fixed with a second support, the vertical rod penetrates the midpoint of the second support, the movable block is rotatably connected with a connecting rod, and the connecting rod is connected with the top of the vertical rod.

[0022] By adopting the above technical scheme, the movable block is driven to move to the end close to the central axis of the L-shaped water inlet pipe by rotating the screw rod, at this time, the two ends of the connecting rod are rotatable on the movable block and the vertical rod respectively, and the vertical rod is driven to move upward at the midpoint of the second support, thereby driving the blocking plate to rise to block the bottom of the L-shaped water inlet pipe, so as to prevent the residual sewage in the L-shaped water inlet pipe from flowing out to cause secondary pollution when the filter bag is replaced, and the structure is simple, the operation is convenient, and the practicability is improved.

[0023] Compared with the prior art, the beneficial effects of the present application are that the large-capacity easy-to-replace liquid filter bag,

[0024] (1) The connecting pipes and the driving assembly are arranged, and when the filter bag is replaced, only the fixed plate needs to be pulled downward to drive the two connecting pipes and the filter bag to descend, then the fixed plate is rotated, and the replacement of the new and old filter bags can be completed quickly, the replacement efficiency is high, and the practicability is improved.

[0025] (2) The taper rod and the clamping assembly are arranged, when the new and old filter bags are replaced, the fixed plate drives the vertical rod and the taper rod to descend after moving downward, and after the replacement of the new and old filter bags, the vertical rod and the taper rod are raised to reset, at this time, the taper rod can be clamped and fixed by the clamping assembly to prevent the filter bag from falling off from the bottom of the L-shaped water inlet pipe, and the taper rod generates an upward action after being extruded, which generates a certain upward force on the vertical rod, the fixed plate and the connecting pipe, so that the connecting pipe extrudes the bottom of the L-shaped water inlet pipe upward to lock the filter bag after replacement, and prevent water leakage. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of the present application;

[0027] Figure 2 It is a vertical rod and taper rod structural schematic diagram of the present application;

[0028] Figure 3 It is a fixed block and L-shaped clamping block top view structural schematic diagram of the present application;

[0029] Figure 4 It is a L-shaped water inlet pipe cross-sectional structural schematic diagram of the present application;

[0030] Figure 5 Figure is a schematic view of the top structure of the sleeve and the vibration rod of the application.

[0031] In the figure: 1, L-shaped water inlet pipe, 2, connecting pipe, 3, filter bag, 4, fixed block, 5, vertical rod, 6, conical rod, 7, fixed plate, 8, spring, 9, handle, 10, clamping assembly, 1001, hand wheel, 1002, screw rod, 1003, L-shaped clamping block, 11, primary filter assembly, 1101, filter inclined plate, 1102, discharge port, 1103, collection box, 12, vibration assembly, 1201, sleeve, 1202, vibration rod, 1203, ball, 1204, ball, 13, self-driving assembly, 1301, rotating rod, 1302, lightweight cross plate, 1303, impeller, 1304, conical block, 14, blocking plate, 15, vertical rod, 16, driving assembly, 1601, screw rod, 1602, movable block, 1603, connecting rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0033] Please refer to Figures 1-5 , the application provides a technical solution: a large-capacity replaceable liquid filter bag, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the side of the L-shaped water inlet pipe 1 is fixed with a fixed block 4, and the fixed block 4 is provided with a vertical rod 5 penetrating through, the upper and lower ends of the vertical rod 5 are respectively fixed with a conical rod 6 and a fixed plate 7, the two ends of the fixed plate 7 are fixed with a connecting pipe 2, and the connecting pipe 2 is sleeved on the bottom of the L-shaped water inlet pipe 1, the bottom of the connecting pipe 2 is provided with a filter bag 3, the bottom of the vertical rod 5 is sleeved with a spring 8, and the two ends of the spring 8 are respectively connected with the fixed block 4 and the fixed plate 7;

[0034] The top of the fixed block 4 is provided with a clamping assembly 10, the inner side of the L-shaped water inlet pipe 1 is provided with a primary filter assembly 11 above, the bottom of the L-shaped water inlet pipe 1 is provided with a blocking plate 14, and the top midpoint of the blocking plate 14 is fixed with a vertical rod 15;

[0035] The inner side of the L-shaped water inlet pipe 1 is provided with a driving assembly 16 below, and the driving assembly 16 is used to drive the blocking plate 14 to move vertically.

[0036] Specifically, the fixing plate 7 is provided with a through hole I, and the vertical rod 5 is located in the through hole I, so as to guide the vertical movement of the vertical rod 5 through the through hole I. The bottom of the fixing plate 7 is fixed with a handle 9, which can facilitate the downward pulling of the fixing plate 7 by the staff.

[0037] As shown in Figure 1 , Figure 2 and Figure 3 , the clamping assembly 10 comprises a hand wheel 1001 installed on the outer side of the fixed block 4, and the upper surface of the fixed block 4 is provided with a groove, and the groove is provided with a lead screw 1002, and the both ends of the lead screw 1002 are threadedly connected with L-shaped clamping blocks 1003, the L-shaped clamping blocks 1003 are slidably connected with the inner wall of the groove, and the top of the L-shaped clamping blocks 1003 is provided with an arc-shaped groove.

[0038] As shown in Figure 1 , the primary filter assembly 11 comprises a filter inclined plate 1101 fixed to the inner side of the L-shaped water inlet pipe 1, and the side of the L-shaped water inlet pipe 1 is provided with a discharge port 1102, and the outer side of the discharge port 1102 is provided with a collection box 1103, and the lower side of the filter inclined plate 1101 is further provided with a vibration assembly 12.

[0039] Specifically, the bottom of the collection box 1103 is provided with a box door, and the box door is installed on the bottom of the collection box 1103 through a hinge and a lock, so as to open the box door to clean the impurities inside the collection box 1103.

[0040] As shown in Figure 1 , Figure 4 and Figure 5 , the vibration assembly 12 comprises a sleeve 1201 fixed to the inner wall of the L-shaped water inlet pipe 1, and the sleeve 1201 is provided with a vibration rod 1202, and the upper side of the vibration rod 1202 is fixed with a limiting ring, and the inside of the L-shaped water inlet pipe 1 is further fixed with a support 1, and the support 1 is provided with a self-driving assembly 13 for driving the vertical movement of the vibration rod 1202.

[0041] Specifically, the bottom of the filter inclined plate 1101 is fixed with a rubber pad, and the rubber pad is on the same vertical line with the vibration rod 1202, so as to make the vibration rod 1202 impact the rubber pad when moving vertically, thereby reducing the damage to the filter inclined plate 1101.

[0042] As shown in Figure 5 , the inner wall of the sleeve 1201 is provided with a plurality of groups of balls 1203, and the balls 1203 are in contact with the outer wall of the vibration rod 1202, and the bottom of the vibration rod 1202 is provided with a ball 1204.

[0043] As shown in Figure 4As shown, the self-driving assembly 13 comprises a rotating rod 1301 which is arranged through the midpoint of the bracket one by bearings, and the upper and lower ends of the rotating rod 1301 are respectively fixed with a light transverse plate 1302 and an impeller 1303, and the top of the light transverse plate 1302 is further fixed with a conical block 1304.

[0044] As shown, Figure 1 and Figure 4 As shown, the driving assembly 16 comprises a screw rod 1601 which is arranged through the side of the L-shaped water inlet pipe 1, and the screw rod 1601 is rotatably connected with a movable block 1602, the L-shaped water inlet pipe 1 is fixed with a bracket two, the vertical rod 15 is arranged through the midpoint of the bracket two, the movable block 1602 is rotatably connected with a connecting rod 1603, and the connecting rod 1603 is connected with the top of the vertical rod 15.

[0045] Specifically, the midpoint of the bracket two is provided with a through hole two, and the vertical rod 15 is located in the through hole two, so as to guide the vertical movement of the vertical rod 15 through the through hole two.

[0046] Working principle: in use, first of all, the sewage pipeline is connected with the top of the L-shaped water inlet pipe 1, and the sewage enters the inside of the L-shaped water inlet pipe 1, and the filter inclined plate 1101 can filter the large-size impurities in the sewage. With the flow of sewage, the impeller 1303 will rotate, and the impeller 1303 will drive the rotating rod 1301, the light transverse plate 1302 and the conical block 1304 to rotate. The conical block 1304 will continuously impact the bottom of the vibrating rod 1202, driving the vibrating rod 1202 to move vertically in the sleeve 1201, so that the top of the vibrating rod 1202 can continuously impact the filter inclined plate 1101. The impurities on the filter inclined plate 1101 will slide downward into the discharge port 1102 under the action of vibration, and fall into the collecting box 1103 from the discharge port 1102. When it is necessary to replace the filter bag 3, first of all, rotate the screw rod 1601 to drive the movable block 1602 to move towards the end close to the axis of the L-shaped water inlet pipe 1. At this time, the two ends of the connecting rod 1603 will rotate on the movable block 1602 and the vertical rod 15 respectively, and drive the vertical rod 15 and the blocking plate 14 to rise to block the bottom of the L-shaped water inlet pipe 1, so as to prevent the sewage remaining in the L-shaped water inlet pipe 1 from flowing out and causing secondary pollution when replacing the filter bag 3. Then pull down the handle 9 to drive the fixed plate 7, the vertical rod 5, the connecting pipe 2A and the old filter bag 3 and the connecting pipe 2B and the new filter bag 3 to descend. The connecting pipe 2A and the old filter bag 3 will be separated from the bottom of the L-shaped water inlet pipe 1. Then rotate the fixed plate 7 to drive the connecting pipe 2A and the old filter bag 3 to move to the side of the L-shaped water inlet pipe 1, and the connecting pipe 2B and the new filter bag 3 will rotate to the lower side of the L-shaped water inlet pipe 1. Then loosen the fixed plate 7, and the spring 8 will drive the vertical rod 5 and the fixed plate 7 to rise, and drive the connecting pipe 2B and the new filter bag 3 to move upwards, so that the connecting pipe 2B is sleeved on the bottom of the L-shaped water inlet pipe 1. That is, the replacement of the new and old filter bags 3 is completed. Then rotate the hand wheel 1001 to drive the lead screw 1002 to rotate, so that the lead screw 1002 drives the two groups of L-shaped clamping blocks 1003 connected with the lead screw 1002 to move close to each other, so as to clamp and fix the conical rod 6 on the top of the vertical rod 5. In this way, the connecting pipe 2B and the new filter bag 3 are fixed. The conical rod 6 generates an upward force after being extruded, which acts on the vertical rod 5, the fixed plate 7 and the connecting pipe 2, so that the connecting pipe 2 extrudes the bottom of the L-shaped water inlet pipe 1 upwards, thereby improving the connection effect between the connecting pipe 2 and the L-shaped water inlet pipe 1. In this way, the locking after the replacement of the filter bag 3 is completed.

[0047] This completes the entire operation, and the contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0048] The terms "central", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships as shown in the drawings, are made only for the purpose of facilitating the description of the present application and simply intended to facilitate description of the application, 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 should not be construed as limiting the protection scope of the present application.

[0049] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by equivalent features by those skilled in the art, and 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 large-capacity, easily replaceable liquid filter bag, comprising an L-shaped inlet pipe (1), characterized in that: A fixing block (4) is fixed to the side of the L-shaped water inlet pipe (1), and a vertical rod (5) is installed through the fixing block (4). A tapered rod (6) and a fixing plate (7) are fixed to the upper and lower ends of the vertical rod (5), respectively. A connecting pipe (2) is fixed to both ends of the fixing plate (7), and the connecting pipe (2) is sleeved on the bottom of the L-shaped water inlet pipe (1). A filter bag (3) is installed at the bottom of the connecting pipe (2). A spring (8) is sleeved on the bottom of the vertical rod (5), and the two ends of the spring (8) are connected to the fixing block (4) and the fixing plate (7), respectively. A clamping assembly is provided on the top of the fixing block (4), and a primary filter assembly is provided on the upper inner side of the L-shaped water inlet pipe (1). The primary filter assembly includes a filter inclined plate (1101), which is fixed on the upper inner side of the L-shaped water inlet pipe (1). A discharge port (1102) is provided on the side of the L-shaped water inlet pipe (1), and a collection box (1103) is provided on the outer side of the discharge port (1102). A vibration assembly is also provided below the filter inclined plate (1101). The vibration assembly includes a sleeve (1201), which is fixed to the inner wall of the L-shaped water inlet pipe (1), and a vibration rod (1202) is provided in the sleeve (1201). A limit ring is fixed above the vibration rod (1202). A bracket is also fixed inside the L-shaped water inlet pipe (1), and a self-driving assembly is provided on the bracket. The self-driving assembly is used to drive the vibration rod (1202) to move vertically. The self-driving assembly includes a rotating rod (1301), which is mounted at the midpoint of the support frame through a bearing. Lightweight horizontal plate (1302) and impeller (1303) are fixed at the upper and lower ends of the rotating rod (1301), respectively. A conical block (1304) is also fixed at the top of the lightweight horizontal plate (1302). The bottom of the L-shaped water inlet pipe (1) is provided with a sealing plate (14), and a vertical rod (15) is fixed at the top midpoint of the sealing plate (14). A drive assembly is provided on the lower inner side of the L-shaped water inlet pipe (1). The drive assembly is used to drive the sealing plate (14) to move vertically. The drive assembly includes a screw (1601), which is disposed through the side of the L-shaped water inlet pipe (1). A movable block (1602) is rotatably connected to the screw (1601). A bracket two is fixed to the L-shaped water inlet pipe (1). A vertical rod two (15) passes through the midpoint of the bracket two. A connecting rod (1603) is rotatably connected to the movable block (1602). The connecting rod (1603) is connected to the top of the vertical rod two (15).

2. The large-capacity, easily replaceable liquid filter bag according to claim 1, characterized in that: The clamping assembly includes a handwheel (1001), which is installed on the outside of the fixing block (4). The upper surface of the fixing block (4) is provided with a groove, in which a lead screw (1002) is installed. Both ends of the lead screw (1002) are threadedly connected to L-shaped clamping blocks (1003). The L-shaped clamping blocks (1003) are slidably connected to the inner wall of the groove, and the top of the L-shaped clamping blocks (1003) is provided with an arc-shaped groove.

3. The large-capacity, easily replaceable liquid filter bag according to claim 1, characterized in that: The inner wall of the sleeve (1201) is provided with multiple sets of balls (1203), and the balls (1203) are in contact with the outer wall of the vibrating rod (1202). The bottom of the vibrating rod (1202) is provided with a ball (1204).

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