Shield pump with filtering structure

Abstract

The invention relates to the technical field of shield pumps, and discloses a shield pump with a filtering structure, which comprises a base, a pump body, a drainage end, a water inlet end, a main shaft, a motor rotor assembly, a motor stator assembly and a circulating pipe, the circulating pipe comprises a first pipeline with one end communicated with the drainage end and a second pipeline with one end communicated with the base, a filter used for filtering liquid is arranged between the first pipeline and the second pipeline, a supporting arm extending towards one side above the first pipeline is arranged on the filter, and a fan exhausting air downwards is arranged at the end, away from the filter, of the supporting arm. The fan at the end part of the supporting arm is used for exhausting air downwards to cool the first pipeline below and the outer wall of the base, and liquid passing through the first pipeline can be cooled, so that the liquid entering the base has lower temperature; and finally, a relatively good cooling effect on the base can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of shielded pumps, and in particular relates to a shielded pump with a filtering structure. Background Art

[0002] The drive of ordinary centrifugal pumps is to connect the impeller shaft of the pump with the electric shaft through a coupling, so that the impeller rotates with the motor to work. The canned pump is a sealless pump. The pump and the drive motor are sealed in a pressure vessel filled with pumping medium. This pressure vessel has only static seals, and a wire group is used to provide a rotating magnetic field and drive the rotor. This structure eliminates the rotating shaft sealing device of traditional centrifugal pumps, so it can be completely leak-free.

[0003] At present, a Chinese patent with publication number CN217206908U and publication date August 16, 2022 discloses a circulating shielded pump, including a pump body with a water inlet, a water outlet and an impeller unit, and a motor body connected to the pump body and with a motor shaft, and the motor shaft is connected to the motor through a bearing, the impeller unit is arranged on the motor shaft, the motor body is composed of a casing, a stator and rotor assembly, the casing is composed of a left connecting end cover, a right connecting end cover and a shell, the left connecting end cover, the right connecting end cover and the shell cooperate with the bearing to form a shell cavity for installing the stator and rotor assembly, and a circulation loop is formed between the pump body and the right connecting end cover. A circulation pipe for buffering axial force, one end of which is connected to the water outlet in the pump body, and the other end of which is connected to the right end face of the right connecting end cover. A mounting hole for the left connecting end cover to be inserted into and installed is provided on the end face of the pump body at the connection with the left connecting end cover. A convex ring portion which protrudes axially outward and extends into the pump body is provided at the left end of the left connecting end cover at the mounting hole, and a gap is left between the convex ring portion and the motor shaft. A T-shaped groove with a T-shaped cross-section and connecting the circulation pipe with the shell cavity is provided on the right end portion of the motor shaft, and an I-shaped groove with an I-shaped cross-section and connecting the shell cavity with the inside of the pump body is provided on the left end portion of the motor shaft.

[0004] This type of circulating shielded pump uses a circulating pipe to connect with the water outlet, so that the water is sent into the motor body through the circulating pipe. Even if the liquid continuously input into the motor body through the circulating pipe has the effect of cooling the inside of the motor body, the temperature inside the motor body is still not low as the motor body operates at high intensity, and with long-term operation, the motor body is easily affected by high temperature. The operating efficiency; at the same time, if the liquid transported in the pump body itself has a high temperature, the liquid entering the motor body will have a higher temperature, which will make it easier to form high temperature inside the motor body, and ultimately affect the operating efficiency of the motor body. Summary of the invention

[0005] The purpose of the present invention is to provide a shielded pump with a filtering structure, which is beneficial to better cooling the base.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a shielded pump with a filtering structure, comprising a base, a pump body arranged at one end of the base and having an impeller inside, a drainage end arranged on the upper side of the pump body, a water inlet end arranged on the side of the pump body away from the base, a main shaft rotatably connected to the base, a motor rotor assembly located on the circumferential side of the main shaft, a motor stator assembly located on the circumferential side of the motor rotor assembly, a circulation pipe connected to the drainage end at one end and connected to the inside of the base at the other end, the circulation pipe comprising a first pipeline connected to the drainage end at one end and a second pipeline connected to the base at one end, a filter for filtering liquid is arranged between the first pipeline and the second pipeline, the filter is provided with a support arm extending toward the upper side of the first pipeline, and a fan for exhausting air downward is arranged at the end of the support arm away from the filter.

[0007] By adopting the above technical solution, the liquid in the circulation pipe enters the filter from the first pipeline, and then enters the base from the second pipeline after being filtered by the filter. The fan at the end of the support arm can exhaust air downward to cool the first pipeline below and the outer wall of the base. The liquid passing through the first pipeline can be cooled, so that the liquid entering the base itself has a lower temperature; ultimately, a better cooling effect on the base can be achieved.

[0008] The present invention is further configured as follows: a coiled portion is integrally provided on the first pipeline and directly below the fan.

[0009] By adopting the above technical solution, by utilizing the coiled portion integrally arranged on the first pipeline and directly below the fan, the coiled portion can extend the cooling time of the liquid in the first pipeline below the fan, which can ultimately facilitate the fan to efficiently dissipate heat from the liquid in the first pipeline.

[0010] The present invention is further configured as follows: the filter comprises a pipe sleeve communicating with the first pipeline and the second pipeline, a support plate arranged in the pipe sleeve, and a filter mesh sleeve arranged around the support plate and located at the position of the second pipeline.

[0011] By adopting the above technical solution, when the liquid in the first pipeline enters the filter, the liquid first needs to pass through the filter mesh sleeve and then enter the second pipeline. When the liquid passes through the filter mesh sleeve, impurities in the liquid can be filtered out, thereby preventing impurities from entering the base and affecting the operation of components in the base.

[0012] The present invention is further configured as follows: the end of the sleeve away from the first pipeline is rotatably connected to a drive shaft having one end connected to the support plate and the other end extending to the outside, and the filter is provided with a drive assembly for driving the drive shaft to rotate intermittently.

[0013] By adopting the above technical solution, when the liquid passes through the filter mesh and is sucked into the second pipeline, the impurities in the liquid will be blocked on the inner wall of the filter mesh located at the position of the second pipeline, which will easily affect the flow rate of the subsequent liquid sucked into the second pipeline; at this time, the driving assembly is used to drive the driving shaft to rotate intermittently, and the filter mesh can be rotated at regular intervals, so that the inner wall of the filter mesh at the second pipeline position can be replaced, which can ultimately help ensure the smooth flow of liquid in the filter.

[0014] The present invention is further configured as follows: the driving assembly includes a first gear arranged at an end of the driving shaft away from the supporting disk, a bearing seat arranged on the upper side of the sleeve, a first connecting shaft rotatably connected to the bearing seat, a second gear arranged at the end of the first connecting shaft and meshing with the first gear, a second connecting shaft rotatably connected to the upper side of the sleeve, a rotating disk arranged at the lower end of the second connecting shaft, a plurality of tooth grooves opened at a side edge of one side of the rotating disk, a third gear arranged at an end of the first connecting shaft away from the second gear and used for meshing in the tooth groove, a bayonet opened at the side edge of the third gear and used for abutting against the upper edge of the rotating disk, a connecting column arranged on the side wall of the third gear and located at a position on one side of the bayonet, an elastic paddle connected to the inner wall of the rotating disk at the lower end and used for pushing the connecting column at the upper end so that the third gear meshes into the tooth groove, and a transmission member arranged on the filter and used for driving the second connecting shaft to rotate through the fan; the number of tooth grooves on the side edge of the rotating disk is equal to the number of gear teeth on the third gear.

[0015] By adopting the above technical solution, the transmission member is used to drive the second connecting shaft to rotate through the fan, and then the second connecting shaft can drive the rotating disk to rotate, wherein when the elastic paddle of the rotating disk abuts against the connecting column, the elastic paddle can push the connecting column, so that the third gear is meshed into the tooth groove, and then the third gear can be rotated under the drive of the rotating disk. Since the number of tooth grooves at the side of the rotating disk is equal to the number of gear teeth on the third gear, when the gear teeth of the third gear are separated from the tooth groove, the bayonet of the third gear just abuts against the upper edge of the rotating disk, and the third gear can be in a stopped state at this time; until the elastic paddle of the rotating disk rotates to the position of the connecting column again, the third gear can be meshed into the tooth groove again, thereby driving the third gear to rotate again through the rotating disk, and at this time, the third gear can be driven to rotate intermittently; The rotation of the third gear can drive the first connecting shaft to rotate, and the first connecting shaft can drive the driving shaft to rotate through the second gear and the first gear. Since the third gear rotates intermittently, the driving shaft can eventually rotate intermittently.

[0016] The present invention is further configured as follows: the fan includes a casing, a bracket arranged on the upper side of the casing, a dual-axis motor fixed on the bracket, and fan blades arranged on the output shaft at the lower end of the dual-axis motor; the transmission member includes a driving pulley arranged on the output shaft at the upper end of the dual-axis motor, a third connecting shaft rotatably connected to the support arm, a driven pulley arranged at the upper end of the third connecting shaft, a belt arranged between the driving pulley and the driven pulley, a fourth gear arranged at the upper end of the second connecting shaft, and a fifth gear arranged at the lower end of the third connecting shaft and meshing with the fourth gear.

[0017] By adopting the above technical solution, a dual-axis motor is used on the fan bracket. The dual-axis motor can drive the fan blades to rotate while also driving the driving pulley to rotate. The driving pulley can drive the third connecting shaft to rotate through the belt and the driven pulley. The third connecting shaft can drive the second connecting shaft to rotate through the engagement of the fourth gear and the fifth gear. Finally, the second connecting shaft can be driven to rotate by the fan.

[0018] The present invention is further configured as follows: a connecting port is provided on the side wall of the pipe sleeve and at one end facing the second pipeline, a flexible membrane is provided in the connecting port, a rapping rubber head is provided on the upper side of the flexible membrane, a collecting box is provided in the pipe sleeve and below the connecting port, and a rapping assembly for driving the rapping rubber head to rap downward is provided on the filter; when the third gear rotates one circle in a plurality of tooth grooves, the driving shaft drives the filter sleeve to rotate 180 degrees in the pipe sleeve.

[0019] By adopting the above technical solution, when the third gear rotates one circle in the multiple tooth grooves, the driving shaft drives the filter sleeve to rotate 180 degrees in the pipe sleeve. At this time, the inner wall of the filter sleeve located at the second pipeline position can be rotated to the position of the connecting port, and then the vibrating component is used to drive the vibrating rubber head to vibrate downward on the flexible membrane. The vibrating force can act on the outer wall of the filter sleeve through the flexible membrane. At this time, the position on the filter sleeve blocked by impurities can be vibrated, so that the impurities blocked in the holes of the filter sleeve are vibrated into the collection box below, and finally the impurities blocked on the filter sleeve can be cleaned and collected.

[0020] The present invention is further configured as follows: the rapping assembly includes a connecting plate with one end hinged on the upper side of the pipe sleeve and connected to the rapping rubber head, a swing arm arranged on one side of the connecting plate and extending obliquely upward to the circumference of the turntable, a fixed plate arranged at the side of the bearing seat, a return spring connected to the fixed plate at one end and to the swing arm at the other end, a connecting block arranged at the side of the turntable away from the tooth groove, and a guide inclined surface opened on the lower side of the connecting block and used to drive the swing arm to swing downward after contacting the end of the swing arm.

[0021] By adopting the above technical scheme, when the third gear is separated from the tooth groove, the filter sleeve can be rotated 180 degrees in the pipe sleeve, so that the inner wall of the filter sleeve located at the second pipeline position is rotated to the position of the connecting port, and as the turntable continues to rotate, the connecting block on the side of the turntable away from the tooth groove can be abutted on the swing arm through the guide slope, and the guide slope can drive the swing arm to swing downward when passing through the swing arm, and the reset spring is stretched, and at this time, the connecting plate can drive the rapping rubber head to swing upward; and when the connecting block passes over the swing arm, the reset spring can be elastically restored, thereby driving the swing arm to swing upward, and at the same time, the connecting plate drives the rapping rubber head to swing downward and then rap on the flexible membrane, and finally, the rapping rubber head can be driven by the rotation of the turntable to rap downward on the flexible membrane, and the rapping force can act on the outer wall of the filter sleeve through the flexible membrane, and at this time, the position blocked by impurities on the filter sleeve can be rapped, so that the impurities blocked in the holes of the filter sleeve are vibrated and fall into the collection box below, and finally, the impurities blocked on the filter sleeve can be cleaned and collected.

[0022] The present invention is further configured as follows: a mounting plate is provided in the pipe sleeve and at one end of the collecting box away from the filter mesh sleeve, and a guide plate inclined downward toward one side of the second pipeline is provided on the lower side of the mounting plate.

[0023] By adopting the above technical solution, the collection box is connected to the inner wall of the pipe sleeve by using a mounting plate, wherein a guide plate inclined downward toward the second pipeline is provided on the lower side of the mounting plate. The guide plate can guide and block the liquid flowing from the first pipeline toward the second pipeline, protect the collection box, slow down the flow rate of the liquid flowing through the collection box, and thus reduce the interference effect of the flowing liquid on the impurities collected in the collection box.

[0024] The beneficial effects of the present invention are as follows: when the shielded pump is working, the liquid in the circulation pipe enters the filter from the first pipeline, and then enters the base from the second pipeline after being filtered by the filter, wherein the fan at the end of the support arm exhausts air downwards to cool the first pipeline below and the outer wall of the base, and the liquid passing through the first pipeline can be cooled, so that the liquid entering the base itself has a lower temperature; finally, a better cooling effect on the base can be achieved; When the liquid in the first pipeline enters the filter, the liquid first needs to pass through the filter mesh sleeve and then enter the second pipeline. When the liquid passes through the filter mesh sleeve, impurities in the liquid can be filtered out, thereby preventing the impurities from entering the base and affecting the operation of the components in the base. At the same time, the fan bracket is provided with a double-axis motor. The double-axis motor can drive the driving pulley to rotate while driving the fan blades. The driving pulley can drive the third connecting shaft to rotate through the belt and the driven pulley. The third connecting shaft can drive the second connecting shaft to rotate through the meshing of the fourth gear and the fifth gear. Finally, the second connecting shaft can be driven to rotate by the fan, and then the second connecting shaft can drive the turntable to rotate; when the elastic paddle of the turntable contacts the connecting column, the elastic paddle can push the connecting column, so that the third gear meshes into the tooth groove, and then the third gear can rotate under the drive of the turntable. Since the number of tooth grooves at the side of the turntable is equal to the number of gear teeth on the third gear, when the gear teeth of the third gear are separated from the tooth grooves, the gear teeth of the third gear are The bayonet of the gear just touches the upper edge of the rotating disk, and the third gear is in a stopped state at this time; until the elastic paddle of the rotating disk rotates to the position of the connecting column again, the third gear can be meshed into the tooth groove again, thereby driving the third gear to rotate again through the rotating disk, and at this time, the third gear can be driven to rotate intermittently; and the rotation of the third gear can drive the first connecting shaft to rotate, and the first connecting shaft can drive the driving shaft to rotate through the second gear and the first gear. Due to the intermittent rotation of the third gear, the driving shaft can eventually rotate intermittently, so that the filter mesh sleeve can be rotated at regular intervals, thereby replacing the inner wall of the filter mesh sleeve at the second pipeline position, which can eventually help to ensure the smooth flow of liquid in the filter; When the third gear is separated from the tooth groove, the filter sleeve just rotates 180 degrees in the pipe sleeve, so that the inner wall of the filter sleeve located at the second pipeline position rotates upward to the position of the connecting port. As the turntable continues to rotate, the connecting block on the side of the turntable away from the tooth groove can be abutted against the swing arm through the guide slope. When the guide slope passes the swing arm, it can drive the swing arm to swing downward, and the reset spring is stretched. At this time, the connecting plate can drive the vibrating rubber head to swing upward; and when the connecting block passes over the swing arm, the reset spring can recover elastically, thereby driving the swing arm to swing upward, and at the same time, the connecting plate drives the vibrating rubber head to swing downward and vibrate on the flexible membrane Finally, the rotation of the turntable can drive the rapping rubber head to rap downward on the flexible membrane, and the rapping force can act on the outer wall of the filter mesh sleeve through the flexible membrane. At this time, the position of the filter mesh sleeve blocked by impurities can be rapped, so that the impurities blocked in the holes of the filter mesh sleeve can be vibrated into the collection box below; during the entire rotation of the turntable for one circle, when the third gear is in meshing state with the tooth groove, the filter mesh sleeve can be replaced by 180 degrees, and when the third gear is separated from the tooth groove, the blocked mesh holes on the filter mesh sleeve can be rapped by the rapping rubber head, and finally the impurities blocked on the filter mesh sleeve can be cleaned and collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 is a structural plan view of the present invention, wherein the pump body and the base are cut away; Figure 2 It is a partial enlarged view of the connection relationship between the circulation pipe, the filter, the support arm, the fan and the drive assembly in the present invention; Figure 3 It is a plan view of the connection relationship between the circulation pipe, the filter, the support arm, the fan and the drive assembly in the present invention, wherein the filter is cut away; Figure 4 It is a partial enlarged view of the connection relationship between the second connecting shaft, the rotating disk, the tooth groove, the third gear, the connecting column and the elastic paddle in the present invention. At this time, the bayonet of the third gear abuts against the upper edge of the rotating disk, and the elastic paddle is about to push the connecting column so that the third gear is meshed into the tooth groove; Figure 5 yes Figure 2 Enlarged view of part A in the middle.

[0027] In the figure, 1, base; 11, pump body; 111, drainage end; 112, water inlet end; 12, main shaft; 13, motor rotor assembly; 14, motor stator assembly; 2, circulation pipe; 21, first pipeline; 211, coiling part; 22, second pipeline; 3, filter; 31, pipe sleeve; 311, drive shaft; 312, connection port; 313, flexible membrane; 314, collection box; 315, mounting plate; 3151, guide plate; 32, support plate; 33, filter net sleeve; 4, support arm; 5, fan; 51, casing; 52, bracket; 53, dual-axis motor; 54, fan blade; 6, drive assembly; 61 , first gear; 62, bearing seat; 63, first connecting shaft; 64, second gear; 65, second connecting shaft; 66, turntable; 67, tooth groove; 68, third gear; 69, bayonet; 601, connecting column; 602, elastic paddle; 603, transmission member; 6031, driving pulley; 6032, third connecting shaft; 6033, driven pulley; 6034, belt; 6035, fourth gear; 6036, fifth gear; 7, rapping rubber head; 8, rapping assembly; 81, connecting plate; 82, swing arm; 83, fixing plate; 84, return spring; 85, connecting block; 86, guide ramp. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] A canned pump with a filter structure, refer to Figure 1 The shielded pump with a filtering structure includes a base 1, a pump body 11, a drainage end 111, a water inlet end 112, a main shaft 12, a motor rotor assembly 13, a motor stator assembly 14, and a circulation pipe 2, wherein the pump body 11 is fixed at one end of the base 1 by bolts and is rotatably connected to an impeller inside, and the drainage end 111 is integrally arranged on the upper side of the pump body 11, and the water inlet end 112 is integrally arranged on the side of the pump body 11 away from the base 1, and the main shaft 12 is rotatably connected in the base 1, wherein the motor rotor assembly 13 is installed on the side of the main shaft 12, and the motor stator assembly 14 is installed in the base 1 on the side of the motor rotor assembly 13; since the structure in which the main shaft 12, the motor rotor assembly 13 and the motor stator assembly 14 drive the impeller to rotate is the existing technology, the specific structure is not repeated here.

[0030] Reference Figure 1 , Figure 2 , Figure 3 The circulation pipe 2 is connected to the drainage end 111 at one end and connected to the inside of the base 1 at the other end. The circulation pipe 2 includes a first pipe 21 connected to the drainage end 111 at one end and a second pipe 22 connected to the base 1 at one end; a filter 3 for filtering the liquid is arranged between the first pipe 21 and the second pipe 22. The filter 3 includes a pipe sleeve 31, a support plate 32, and a filter mesh sleeve 33. The pipe sleeve 31 is welded between the first pipe 21 and the second pipe 22, and the support plate 32 is embedded in the pipe sleeve 31. At the same time, the filter mesh sleeve 33 is welded On the side of the support plate 32 and at the position of the second pipeline 22; a support arm 4 extending toward the upper side of the first pipeline 21 is welded on the filter 3, and a fan 5 for exhausting air downward is arranged at the end of the support arm 4 away from the filter 3, and the fan 5 includes a casing 51, a bracket 52 integrally arranged on the upper side of the casing 51, a double-axis motor 53 fixed to the bracket 52 by bolts, and fan blades 54 fixed to the output shaft at the lower end of the double-axis motor 53 by bolts; wherein a winding portion 211 is integrally arranged on the first pipeline 21 and directly below the fan 5.

[0031] Reference Figure 2 , Figure 3 , Figure 4, the end of the sleeve 31 away from the first pipeline 21 is rotatably connected to a driving shaft 311 having one end connected to the support plate 32 and the other end extending to the outside through a bearing, and a driving assembly 6 for driving the driving shaft 311 to rotate intermittently is provided on the filter 3, and the driving assembly 6 includes a first gear 61, a bearing seat 62, a first connecting shaft 63, a second gear 64, a second connecting shaft 65, a rotating disk 66, a tooth groove 67, a third gear 68, a bayonet 69, a connecting column 601, an elastic paddle 602, and a transmission member 603, wherein the first gear 61 is key-connected to the end of the driving shaft 311 away from the support plate 32, and the bearing seat 62 is welded to the upper side of the sleeve 31, and the first connecting shaft 63 is rotatably connected in the bearing seat 62, and the second gear 64 is key-connected to the end of the first connecting shaft 63 and meshes with the first gear 61; wherein the lower end of the second connecting shaft 65 is rotatably connected to the upper side of the sleeve 31 through a bearing, and the second connecting shaft 65 is vertically upward. The rotating disk 66 is welded at the lower end of the second connecting shaft 65, and a plurality of tooth grooves 67 are provided on the side of one side of the rotating disk 66, wherein the third gear 68 is welded at the end of the first connecting shaft 63 away from the second gear 64 and is used to mesh in the tooth grooves 67, and the number of tooth grooves 67 on the side of the rotating disk 66 is equal to the number of gear teeth on the third gear 68; at the same time, the bayonet 69 is provided on the side of the third gear 68 and is used to abut against the upper edge of the rotating disk 66, and The connecting column 601 is welded on the side wall of the third gear 68 and is located on one side of the bayonet 69, wherein the elastic paddle 602 is welded on the inner wall of the turntable 66 at the lower end and is located near the tooth groove 67, and the upper end of the elastic paddle 602 is used to push the connecting column 601 so that the third gear 68 engages into the tooth groove 67; when the third gear 68 rotates one circle in the multiple tooth grooves 67, the driving shaft 311 drives the filter mesh sleeve 33 to rotate 180 degrees in the pipe sleeve 31.

[0032] Reference Figure 2 , Figure 3 , the transmission member 603 is arranged on the filter 3 and is used to drive the second connecting shaft 65 to rotate through the fan 5. The transmission member 603 includes a driving pulley 6031, a third connecting shaft 6032, a driven pulley 6033, a belt 6034, a fourth gear 6035, and a fifth gear 6036. The driving pulley 6031 is keyed to the output shaft at the upper end of the dual-axis motor 53, and the third connecting shaft 6032 is rotatably connected to the support arm 4 at the lower end through a bearing. At the same time, the driven pulley 6033 is keyed to the upper end of the third connecting shaft 6032, and the belt 6034 is connected between the driving pulley 6031 and the driven pulley 6033; the fourth gear 6035 is keyed to the upper end of the second connecting shaft 65, and the fifth gear 6036 is keyed to the lower end of the third connecting shaft 6032 and meshes with the fourth gear 6035.

[0033] Reference Figure 2 , Figure 4 , Figure 5 A connecting port 312 is provided on the upper side wall of the pipe sleeve 31 and at the end position facing the second pipeline 22, and a flexible membrane 313 is bonded in the connecting port 312, wherein a rapping rubber head 7 is provided on the upper side of the flexible membrane 313, and a collecting box 314 is provided in the pipe sleeve 31 and below the connecting port 312, and a mounting plate 315 is welded in the pipe sleeve 31 for fixing the collecting box 314 away from the end of the filter mesh sleeve 33 by bolts, and a guide plate 3151 is integrally provided on the lower side of the mounting plate 315 and tilted downward toward the second pipeline 22; wherein a rapping assembly 8 for driving the rapping rubber head 7 to rap downward is also provided on the filter 3, and the rapping assembly 8 includes a connecting plate 81, swing arm 82, fixed plate 83, return spring 84, connecting block 85, guide slope 86, one end of the connecting plate 81 is hinged on the upper side of the pipe sleeve 31 and is bonded and fixed to the rapping rubber head 7, and the swing arm 82 is integrally arranged on one side of the connecting plate 81 and extends obliquely upward to the side of the turntable 66, while the fixed plate 83 is welded to the side of the bearing seat 62, and the return spring 84 is welded to the fixed plate 83 at one end and to the swing arm 82 at the other end, wherein the connecting block 85 is welded to the side of the turntable 66 away from the tooth groove 67, and the guide slope 86 is provided on the lower side of the connecting block 85 and is used to contact the end of the swing arm 82 and drive the swing arm 82 to swing downward.

[0034] Principle: When the shielded pump is working, the liquid in the circulation pipe 2 enters the filter 3 from the first pipe 21, and then enters the base 1 from the second pipe 22 after being filtered by the filter 3. The fan 5 at the end of the support arm 4 exhausts air downward to cool the first pipe 21 below and the outer wall of the base 1. The liquid passing through the first pipe 21 can be cooled, so that the liquid entering the base 1 has a lower temperature. Finally, a better cooling effect on the base 1 can be achieved. When the liquid in the first pipeline 21 enters the filter 3, the liquid first needs to pass through the filter mesh sleeve 33 and then enter the second pipeline 22. When the liquid passes through the filter mesh sleeve 33, impurities in the liquid can be filtered out, thereby preventing the impurities from entering the base 1 and affecting the operation of the components in the base 1. At the same time, the fan 5 is provided with a double-axis motor 53 on the bracket 52. The double-axis motor 53 drives the driving pulley 6031 to rotate while driving the fan blades 54 to rotate. The driving pulley 6031 can drive the third connecting shaft 6032 to rotate through the belt 6034 and the driven pulley 6033. The third connecting shaft 6032 can drive the second connecting shaft 65 to rotate through the meshing of the fourth gear 6035 and the fifth gear 6036. Finally, the fan 5 can drive the second connecting shaft 65 to rotate, and then the second connecting shaft 65 can drive the rotating disk 66 to rotate; when the elastic paddle 602 of the rotating disk 66 contacts the connecting column 601, the elastic paddle 602 can push the connecting column 601, so that the third gear 68 is meshed into the tooth groove 67, and then the third gear 68 can rotate under the drive of the rotating disk 66. Since the number of tooth grooves 67 at the side of the rotating disk 66 is equal to the number of gear teeth on the third gear 68, when the third gear 6 When the gear teeth 602 of the rotary disk 66 are separated from the tooth groove 67, the bayonet 69 of the third gear 68 just contacts the upper edge of the rotary disk 66, and the third gear 68 is in a stopped state at this time; until the elastic paddle 602 of the rotary disk 66 rotates to the position of the connecting column 601 again, the third gear 68 can be meshed into the tooth groove 67 again, thereby driving the third gear 68 to rotate again through the rotary disk 66, and at this time, the third gear 68 can be driven to rotate intermittently; and the rotation of the third gear 68 can drive the first connecting shaft 63 to rotate, and the first connecting shaft 63 can drive the driving shaft 311 to rotate through the second gear 64 and the first gear 61. Due to the intermittent rotation of the third gear 68, the driving shaft 311 can be intermittently rotated eventually, so that the filter mesh sleeve 33 can be rotated at regular intervals, thereby replacing the inner wall of the filter mesh sleeve 33 at the position of the second pipeline 22, which can eventually help to ensure the smooth flow of liquid in the filter 3; When the third gear 68 is separated from the tooth groove 67, the filter mesh sleeve 33 just rotates 180 degrees in the pipe sleeve 31, so that the inner wall of the filter mesh sleeve 33 located at the position of the second pipeline 22 rotates upward to the position of the connecting port 312. As the turntable 66 continues to rotate, the connecting block 85 of the turntable 66 away from the tooth groove 67 side can be abutted against the swing arm 82 through the guide slope 86. The guide slope 86 can drive the swing arm 82 to swing downward when passing through the swing arm 82, and the return spring 84 is stretched. At this time, the connecting plate 81 can drive the rapping rubber head 7 to swing upward; and when the connecting block 85 passes over the swing arm 82, the return spring 84 can be elastically restored, thereby driving the swing arm 82 to swing upward, and at the same time, the connecting plate 81 drives the rapping rubber head 7 to swing downward. After rapping on the flexible membrane 313, the rotation of the turntable 66 can finally drive the rapping rubber head 7 to rap downward on the flexible membrane 313, and the rapping force can act on the outer wall of the filter mesh sleeve 33 through the flexible membrane 313. At this time, the position blocked by impurities on the filter mesh sleeve 33 can be rapped, so that the impurities blocked in the holes of the filter mesh sleeve 33 are vibrated and fall into the collection box 314 below; during the entire rotation of the turntable 66 for one circle, when the third gear 68 is in an engaged state with the tooth groove 67, the filter mesh sleeve 33 can be replaced by 180 degrees, and when the third gear 68 is separated from the tooth groove 67, the blocked mesh on the filter mesh sleeve 33 can be rapped by the rapping rubber head 7, and finally the impurities blocked on the filter mesh sleeve 33 can be cleaned and collected.

Claims

1. A canned pump with a filtering structure, comprising a base (1), a pump body (11) disposed at one end of the base (1) and having an impeller therein, a drainage end (111) disposed on the upper side of the pump body (11), a water inlet end (112) disposed on the side of the pump body (11) away from the base (1), a main shaft (12) rotatably connected to the base (1), a motor rotor assembly (13) located on the circumference of the main shaft (12), a motor stator assembly (14) located on the circumference of the motor rotor assembly (13), and a circulation pipe (2) having one end connected to the drainage end (111) and the other end connected to the inside of the base (1), characterized in that: The circulation pipe (2) comprises a first pipe (21) having one end connected to the drainage end (111) and a second pipe (22) having one end connected to the base (1); a filter (3) for filtering liquid is arranged between the first pipe (21) and the second pipe (22); a support arm (4) extending toward the upper side of the first pipe (21) is arranged on the filter (3); and a fan (5) for exhausting air downwards is arranged at one end of the support arm (4) away from the filter (3).

2. The canned motor pump with a filtering structure according to claim 1, characterized in that: A coiled portion (211) is integrally provided on the first pipeline (21) and directly below the fan (5).

3. The canned motor pump with a filtering structure according to claim 1, characterized in that: The filter (3) comprises a pipe sleeve (31) communicating with the first pipeline (21) and the second pipeline (22), a support plate (32) arranged in the pipe sleeve (31), and a filter mesh sleeve (33) arranged on the peripheral side of the support plate (32) and located at the position of the second pipeline (22).

4. The canned motor pump with a filtering structure according to claim 3, characterized in that: The pipe sleeve (31) is rotatably connected at one end away from the first pipe (21) to a drive shaft (311) having one end connected to the support plate (32) and the other end extending to the outside, and the filter (3) is provided with a drive assembly (6) for driving the drive shaft (311) to rotate intermittently.

5. The canned motor pump with a filtering structure according to claim 4, characterized in that: The driving assembly (6) comprises a first gear (61) arranged at an end of the driving shaft (311) away from the supporting plate (32), a bearing seat (62) arranged on the upper side of the sleeve (31), a first connecting shaft (63) rotatably connected to the bearing seat (62), a second gear (64) arranged at the end of the first connecting shaft (63) and meshing with the first gear (61), a second connecting shaft (65) rotatably connected to the upper side of the sleeve (31), a rotating disk (66) arranged at the lower end of the second connecting shaft (65), a plurality of tooth grooves (67) provided on the side edge of one side of the rotating disk (66), and a tooth groove (67) arranged at an end of the first connecting shaft (63) away from the second gear (64) and meshing with the tooth grooves. The invention relates to a third gear (68) in a rotating disk (67), a bayonet (69) provided on the side of the third gear (68) and used to abut against the upper edge of the rotating disk (66), a connecting column (601) provided on the side wall of the third gear (68) and located on one side of the bayonet (69), an elastic paddle (602) whose lower end is connected to the inner wall of the rotating disk (66) and whose upper end is used to push the connecting column (601) so that the third gear (68) meshes into the tooth groove (67), and a transmission member (603) provided on the filter (3) and used to drive the second connecting shaft (65) to rotate through the fan (5); the number of the tooth grooves (67) on the side of the rotating disk (66) is equal to the number of gear teeth on the third gear (68).

6. The canned motor pump with a filtering structure according to claim 5, characterized in that: The fan (5) comprises a casing (51), a bracket (52) arranged on the upper side of the casing (51), a double-shaft motor (53) fixed on the bracket (52), and a fan blade (54) arranged on an output shaft at the lower end of the double-shaft motor (53); the transmission member (603) comprises a driving pulley (6031) arranged on the output shaft at the upper end of the double-shaft motor (53), a third connecting shaft (6032) rotatably connected to the support arm (4), a driven pulley (6033) arranged at the upper end of the third connecting shaft (6032), a belt (6034) arranged between the driving pulley (6031) and the driven pulley (6033), a fourth gear (6035) arranged at the upper end of the second connecting shaft (65), and a fifth gear (6036) arranged at the lower end of the third connecting shaft (6032) and meshing with the fourth gear (6035).

7. The canned motor pump with a filtering structure according to claim 5, characterized in that: A connecting port (312) is provided on the side wall of the pipe sleeve (31) and at one end thereof facing the second pipeline (22); a flexible membrane (313) is provided in the connecting port (312); a rapping rubber head (7) is provided on the upper side of the flexible membrane (313); a collecting box (314) is provided in the pipe sleeve (31) and below the connecting port (312); and a rapping assembly (8) for driving the rapping rubber head (7) to rap downward is provided on the filter (3); when the third gear (68) rotates one circle in the plurality of tooth grooves (67), the driving shaft (311) drives the filter sleeve (33) to rotate 180 degrees in the pipe sleeve (31).

8. The canned motor pump with a filtering structure according to claim 7, characterized in that: The rapping assembly (8) comprises a connecting plate (81) having one end hinged to the upper side of the pipe sleeve (31) and connected to the rapping rubber head (7), a swing arm (82) arranged on one side of the connecting plate (81) and extending obliquely upward to the circumference of the rotating disk (66), a fixing plate (83) arranged at the side of the bearing seat (62), a return spring (84) having one end connected to the fixing plate (83) and the other end connected to the swing arm (82), a connecting block (85) arranged at the side of the rotating disk (66) away from the tooth groove (67), and a guide inclined surface (86) provided on the lower side of the connecting block (85) and used to abut against the end of the swing arm (82) and drive the swing arm (82) to swing downward.

9. The canned motor pump with a filtering structure according to claim 7, characterized in that: A mounting plate (315) is provided in the pipe sleeve (31) and at one end of the collection box (314) away from the filter mesh sleeve (33), and a guide plate (3151) is provided on the lower side of the mounting plate (315) and is inclined downward toward the second pipeline (22).

Images