Magnetic drive pump with anti-blocking structure

Abstract

The invention discloses a magnetic drive pump with an anti-blocking structure, which comprises a driver, the front end of the driver is integrally connected with a connecting disc, the connecting disc is buckled with a bushing, the front end of the bushing is provided with a pump sleeve, the middle of the front surface of the pump sleeve is connected with a connecting pipe, the front end of the connecting pipe is connected with a liquid collecting cylinder, and the connecting pipe is located at the waist position of the liquid collecting cylinder. A filter cylinder is installed in the liquid collecting cylinder, a gland is integrally arranged on an upper port of the filter cylinder and fixed to the upper surface of the liquid collecting cylinder through screws, and an input pipe is connected to the center of the upper surface of the gland. The filter cylinder is installed in the liquid collecting cylinder, liquid enters the liquid collecting cylinder from the input pipe and then is filtered through the filter cylinder, the lower surface of the filter cylinder is conical, the bottom of the filter cylinder is connected with the short pipe, the blow-down valve is installed, and when impurities are accumulated, the impurities can be discharged by opening the blow-down valve. The design of the through hole in the lower surface of the filter cartridge enables impurities to smoothly flow to the short pipe, and prevents the impurities from accumulating at the bottom of the filter cartridge to cause blockage, thereby preventing blockage caused by excessive impurities entering the pump body.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic pumps and relates to a magnetic pump with an anti-blocking structure. Background Art

[0002] When a magnetic pump is conveying liquid, a small amount of solids often mix into the liquid. These solids will block the pump body and pipeline, causing the magnetic pump to not work properly. If these solid debris are not intercepted and processed, they will easily accumulate inside the pump body, affecting the normal operation of the magnetic pump.

[0003] Chinese utility model CN220828381U discloses an anti-clogging magnetic pump, which has a double-layer filter screen at the water inlet. The mesh sizes are different, and the multi-layer filtering effect is better. A grid plate that rotates with the water flow is also arranged at the bottom, which can further capture other impurities in the water flow and further reduce solid impurities in the water flow that are difficult to be blocked by the filter screen.

[0004] The existing magnetic pump filter is simply set at the flow input port of the pump body. Under the strong hydraulic flushing effect, the particles intercepted by the filter will still be broken into smaller pieces and enter the magnetic pump. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In order to solve the problems mentioned in the above background technology, the present invention adopts the following technical solutions.

[0007] A magnetic pump with an anti-clogging structure comprises a driver, a driving end of the driver is fixedly sleeved with an outer magnetic sleeve, and an isolation sleeve is arranged inside the outer magnetic sleeve, the diameter of the isolation sleeve is smaller than the inner diameter of the outer magnetic sleeve, the isolation sleeve is arranged inside the inner magnetic sleeve, and the inner magnetic sleeve is centrally connected with a shaft cylinder, a pump shaft is fixedly inserted in the shaft cylinder, an impeller is mounted on the end of the pump shaft, a connecting disk is integrally connected to the front end of the driver, a bushing is buckled on the connecting disk, a pump sleeve is mounted on the front end of the bushing, the impeller is located in the pump sleeve, an output pipe is arranged on the pump sleeve, a connecting pipe is centrally connected to the front surface of the pump sleeve, a liquid collecting cylinder is connected to the front end of the connecting pipe, the connecting pipe is located at the waist of the liquid collecting cylinder, a filter cartridge is installed in the liquid collecting cylinder, a pressure cover is integrally provided at the upper port of the filter cartridge, the pressure cover is fixed to the upper surface of the liquid collecting cylinder by screws, and an input pipe is centrally connected to the upper surface of the pressure cover.

[0008] Preferably, the lower surface of the filter cartridge is conical, and a short tube is connected to the conical bottom, a drain valve is installed on the short tube, and a through opening is provided on the lower surface of the filter cartridge, and the through opening abuts against the short tube at the bottom of the filter cartridge.

[0009] Preferably, a plurality of outer magnetic rotors are equidistantly arranged in a circular pattern on the inner surface of the outer magnetic sleeve, a shaft cylinder is integrally connected to the center of the inner magnetic sleeve, the pump shaft is fixedly inserted in the shaft cylinder, a sleeve is provided on the inner magnetic sleeve and outside the shaft cylinder, and a plurality of inner magnetic rotors are equidistantly arranged in a circular pattern on the outer surface of the sleeve.

[0010] Preferably, a first assembly groove is provided at the front surface port of the bushing, and a sleeve is integrally connected to the outer side of the front surface of the isolation sleeve. When the isolation sleeve is assembled in the outer magnetic sleeve, the sleeve is embedded in the first assembly groove and fixed by screws.

[0011] Preferably, a groove is centrally provided on the sleeve, an end cover is embedded in the groove, the end cover is annular in structure, a bearing is connected inside the end cover, the pump shaft is fixedly connected to the inner ring of the bearing, and an oil plug is attached to the front surface of the bearing.

[0012] Preferably, a buffer groove and a second assembly groove are also provided on the front surface of the bushing, and the diameter of the buffer groove is larger than the diameter of the first assembly groove, and the diameter of the second assembly groove is larger than the diameter of the buffer groove, and the first assembly groove, the buffer groove and the second assembly groove are designed in a stepped shape.

[0013] Preferably, a sealing cover is embedded in the second assembly groove, the sealing cover is in contact with the surface of the bearing oil plug, the pump sleeve is in contact with the sealing cover, and bolt holes are provided at the edges of the pump sleeve, the sealing cover and the bushing, and the pump sleeve, the sealing cover and the bushing are fixedly connected by bolts.

[0014] Preferably, a shallow groove is provided on one side where the pump sleeve and the sealing cover meet, and a sealing ring is built into the shallow groove. When the pump sleeve and the sealing cover are connected, the sealing ring fills the connection seam.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) In the present invention, a filter cartridge is installed in the liquid collecting cartridge. After the liquid enters the liquid collecting cartridge from the input pipe, it is first filtered by the filter cartridge. The lower surface of the filter cartridge is conical and a short tube is connected to the bottom and a drain valve is installed. When impurities accumulate, the impurities can be discharged by opening the drain valve. The opening design on the lower surface of the filter cartridge allows the impurities to flow smoothly to the short tube, avoiding the accumulation of impurities at the bottom of the filter cartridge and causing blockage, thereby preventing the liquid entering key components such as the pump sleeve and impeller from containing too many impurities and causing blockage.

[0017] (2) The sleeve of the isolation sleeve in the present invention is embedded in the first assembly groove and fixed. Reasonable assembly can ensure the accurate position of the isolation sleeve and avoid the possibility of foreign matter blockage caused by the displacement of the isolation sleeve affecting the internal magnetic field transmission or increasing the friction of internal components. The sealing cover is embedded in the second assembly groove. The pump sleeve, sealing cover and bushing are fixedly connected by bolts, and there is a shallow groove with a built-in sealing ring at the junction of the pump sleeve and the sealing cover to fill the connection seam. The tight connection prevents liquid leakage and also prevents foreign matter from entering the pump and causing blockage. The end cover is embedded in the groove on the sleeve, and the bearing is connected inside the end cover. The pump shaft is fixedly connected to the inner ring of the bearing and the front surface of the bearing is fitted with an oil plug. This structure can ensure smooth rotation of the pump shaft and reduce impurities such as debris generated by component wear, thereby preventing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The magnetic pump of the present invention is three-dimensional Figure 1 .

[0019] Figure 2 The magnetic pump of the present invention is three-dimensional Figure 2 .

[0020] Figure 3 It is a cross-sectional view of the magnetic pump in the present invention.

[0021] Figure 4 It is a sectional plan view of the magnetic pump in the present invention.

[0022] Figure 5 For the present invention Figure 4 A partial enlarged view of the pump body in the middle.

[0023] Figure 6 The magnetic pump explosion of the present invention Figure 1 .

[0024] Figure 7 The magnetic pump explosion of the present invention Figure 2 .

[0025] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0026] 100, driver; 101, connecting plate; 102, outer magnetic sleeve; 103, isolation sleeve; 1031, sleeve; 104, inner magnetic sleeve; 105, pump shaft; 1051, impeller; 106, bushing; 1061, first assembly groove; 1062, buffer groove; 1063, second assembly groove; 10631, sealing cover; 107, end cover; 1071, bearing; 10711, oil plugging plate; 108, sealing ring; 109, pump sleeve; 1091, connecting pipe; 1092, shallow groove; 200, liquid collecting cylinder; 201, filter cartridge; 2011, pressure cover; 2012, input pipe; 202, drain valve. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] See also Figure 1-3 1 is a structural diagram of a magnetic pump with an anti-blocking structure in this embodiment. The magnetic pump in this embodiment includes a driver 100. The driving end of the driver 100 is fixedly sleeved with an outer magnetic sleeve 102, and an isolation sleeve 103 is provided in the outer magnetic sleeve 102. The diameter of the isolation sleeve 103 is smaller than the inner diameter of the outer magnetic sleeve 102, so that the isolation sleeve 103 can be accurately installed inside the outer magnetic sleeve 102 to play an effective isolation role. The isolation sleeve 103 has an inner magnetic sleeve 104 built in. The inner magnetic sleeve 104 interacts with the outer magnetic sleeve 102 through magnetic force, thereby realizing contactless transmission of power, and the inner magnetic sleeve 104 is centrally connected to a shaft cylinder, a pump shaft 105 is fixedly inserted in the shaft cylinder, and an impeller 1051 is mounted on the end of the pump shaft 105. The front end of the driver 100 is integrally connected to a connecting disk 101, and a bushing 106 is buckled on the connecting disk 101. The bushing 106 can protect and position the internal components. The front end of the sleeve 106 is equipped with a pump sleeve 109, and the pump sleeve 109 provides a relatively closed working space for the impeller 1051. The impeller 1051 is located in the pump sleeve 109, and the pump sleeve 109 is provided with an output pipe. The front surface of the pump sleeve 109 is centrally connected with a connecting pipe 1091, and the front end of the connecting pipe 1091 is connected to a liquid collecting barrel 200. The connecting pipe 1091 is located at the waist position of the liquid collecting barrel 200, which is conducive to the reasonable flow and distribution of the liquid in the liquid collecting barrel 200. A filter cartridge 201 is installed in the liquid collecting barrel 200. The filter cartridge 201 is one of the core components to prevent clogging. The filter fine pore size is set according to actual needs. The upper port of the filter cartridge 201 is integrally provided with a pressure cover 2011, which plays a role of sealing and fixing the filter cartridge 201. The pressure cover 2011 is fixed to the upper surface of the liquid collecting barrel 200 by screws, and the upper surface of the pressure cover 2011 is centrally connected with an input pipe 2012.

[0031] In this embodiment, the liquid first enters the liquid collecting cylinder 200 through the input pipe 2012. After entering the liquid collecting cylinder 200, the liquid directly flows to the filter cartridge 201, and the filter cartridge 201 starts to filter the liquid. The impurities in the liquid are blocked in the filter cartridge 201. The driver 100 is started, and the driving end of the driver 100 drives the outer magnetic sleeve 102 to rotate. Since the inner magnetic sleeve 104 is provided in the isolation sleeve 103 in the outer magnetic sleeve 102, and the inner surface of the outer magnetic sleeve 103 is circumferentially equidistantly provided with multiple outer magnetic rotors, the inner magnetic sleeve 104 is centrally connected with a shaft cylinder, and the pump shaft 105 is fixed. Inserted in the shaft cylinder, a sleeve is provided on the inner magnetic sleeve 104 and outside the shaft cylinder, and a plurality of inner magnetic rotors are arranged equidistantly in a circular pattern on the outer surface of the sleeve. The rotation of the outer magnetic sleeve 102 drives the inner magnetic rotor in the inner magnetic sleeve 104 to rotate through the magnetic force of the outer magnetic rotor, and then the shaft cylinder connected in the center of the inner magnetic sleeve 104 rotates accordingly, and the pump shaft 105 fixedly inserted in the shaft cylinder also starts to rotate. As the pump shaft 105 rotates, the impeller 1051 assembled at the end of the pump shaft 105 starts to rotate at high speed. When the impeller 1051 rotates in the pump sleeve 109, a low-pressure area is formed in the central area of ​​the impeller 1051, and a high-pressure area is formed in the peripheral area. Under the action of the pressure difference, the liquid filtered by the filter cartridge 201 enters the interior of the pump sleeve 109 from the liquid collecting cartridge 200 through the connecting pipe 1091. Then, under the action of the impeller 1051, the liquid is accelerated and flows toward the output pipe on the pump sleeve 109, and is finally output from the output pipe; refer to Figure 3 and Figure 4 In the working process of the filter cartridge 201 in this embodiment, if impurities accumulate in the filter cartridge 201, since the lower surface of the filter cartridge 201 is conical, the impurities will gather to the bottom of the cone under the action of gravity, and the bottom of the cone is connected to a short tube, and a drain valve 202 is installed on the short tube. The lower surface of the filter cartridge 201 is provided with a through hole, and the through hole abuts against the short tube at the bottom of the filter cartridge 201. When it is necessary to clean the impurities, the drain valve on the short tube can be opened, and the impurities will be discharged from the short tube.

[0032] See also Figure 6 good Figure 7 In this embodiment, a first assembly groove 1061 is opened at the front surface port of the bushing 106, and a sleeve 1031 is integrally connected to the outer side of the front surface of the isolation sleeve 103. When the isolation sleeve 103 is assembled in the outer magnetic sleeve 102, its sleeve 1031 is embedded in the first assembly groove 1061 and fixed by screws. The isolation sleeve 103 is fixedly connected to the outer magnetic sleeve 102 through the sleeve 1031. Since the isolation sleeve 103 only plays an isolating role and does not rotate itself, the isolation sleeve 103 is fixedly connected to the bushing 106 through the sleeve 1031.

[0033] See also Figure 5 and Figure 6A groove is provided in the center of the sleeve 1031, and an end cover 107 is embedded in the groove. Since the size of the groove matches that of the end cover 107, the end cover 107 can be stably embedded in the groove. The end cover 107 is annular in structure, and a bearing 1071 is connected to the end cover 107. The pump shaft 105 is fixedly connected to the inner ring of the bearing 1071. The inner ring of the bearing 1071 is fixedly connected to the pump shaft 105 to provide support for the rotation of the pump shaft 105, so that the pump shaft 105 can be assembled in the pump body for stable rotation. Since the bearing 1071 is sealed in the pump body, lubricating oil is usually applied inside to reduce the wear of the bearing 1071. In order to prevent the lubricating oil from leaking out, in this embodiment, an oil plugging sheet 10711 is attached to the front surface of the bearing 1071. Considering that multiple components are fixed by screws, and the nail heads of the screws protrude, in order to prevent the nail heads from blocking the connection of the pump sleeve 109, in this embodiment, a buffer groove 1062 and a second assembly groove 1063 are further opened on the front surface of the bushing 106, wherein the buffer groove 1062 is used to accommodate the nail heads of the screws, and the second assembly groove 1063 is used to prevent the seal, the diameter of the buffer groove 1062 is larger than the diameter of the first assembly groove 1061, the diameter of the second assembly groove 1063 is larger than the diameter of the buffer groove 1062, the first assembly groove 1061, the buffer groove 1063, the first assembly groove 1061, the buffer groove 1062, and the second assembly groove 1063. The punching groove 1062 and the second assembly groove 1063 are designed in a stepped shape, and a sealing cover 10631 is embedded in the second assembly groove 1063. The sealing cover 10631 acts as a sealing member and can cover the buffer groove 1062 while performing a sealing function, thereby ensuring that the pump sleeve 109 will not be blocked by the screws when connected. The sealing cover 10631 and the surface of the oil plug 10711 of the bearing 1071, the pump sleeve 109 and the sealing cover 10631 fit together, and bolt holes are opened at the edges of the pump sleeve 109, the sealing cover 10631 and the bushing 106, and the pump sleeve 109, the sealing cover 10631 and the bushing 106 are fixedly connected by bolts A shallow groove 1092 is provided on one side where the pump sleeve 109 and the sealing cover 10631 meet, and a sealing ring 108 is built in the shallow groove 1092. When the pump sleeve 109 and the sealing cover 10631 are docked, the sealing ring 108 fills the connection seam. During the installation process, the sealing ring 108 is installed in the shallow groove 1092 where the pump sleeve 109 and the sealing cover 10631 meet, and the locating pin hole of the sealing ring 108 is aligned with the locating pin holes on both sides of the shallow groove 1092 of the pump sleeve 109 to ensure that the sealing ring 108 is accurately installed. The sealing ring 108 fills the connection seam between the pump sleeve 109 and the sealing cover 10631 to prevent liquid leakage and impurities from entering.

[0034] It is worth noting that some buffer pads made of elastic materials can be arranged inside the buffer groove 1062. The thickness of these buffer pads is 2 mm, and they are made of rubber material with good elasticity and wear resistance. When a component is impacted by external force or has a slight displacement during operation, the buffer pad can absorb energy and protect the component from damage.

[0035] In this embodiment, when the magnetic pump is working, the sealing structure between the components plays an important role. The sealing cover 10631 fits the surface of the oil plug 10711 of the bearing 1071, and the sealing ring 108 between the pump sleeve 109 and the sealing cover 10631 prevents the leakage of liquid and the entry of external impurities. At the same time, the fixed connection between the bushing 106, the sealing cover 10631 and the pump sleeve 109 by bolts ensures the tightness between the components. The bearing 1071 runs stably in the end cover 107, the oil plug 10711 prevents the leakage of lubricating oil, and the buffer structure between the components (such as the buffer groove 1062 in the bushing 106) can absorb vibration and impact to protect the components from damage, thereby ensuring the normal operation of the magnetic pump.

[0036] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A magnetic pump with an anti-blocking structure, comprising a driver (100), wherein the driving end of the driver (100) is fixedly sleeved with an outer magnetic sleeve (102), and an isolation sleeve (103) is arranged inside the outer magnetic sleeve (102), the diameter of the isolation sleeve (103) is smaller than the inner diameter of the outer magnetic sleeve (102), the isolation sleeve 103 has an inner magnetic sleeve (104) inside, and the inner magnetic sleeve (104) is centrally connected with a shaft cylinder, a pump shaft (105) is fixedly inserted in the shaft cylinder, and an impeller (1051) is mounted at the end of the pump shaft (105), Features: The front end of the driver (100) is integrally connected to a connecting disk (101), a bushing (106) is buckled on the connecting disk (101), a pump sleeve (109) is mounted on the front end of the bushing (106), an impeller (1051) is located in the pump sleeve (109), an output pipe is provided on the pump sleeve (109), a connecting pipe (1091) is centrally connected to the front surface of the pump sleeve (109), a front end of the connecting pipe (1091) is connected to a liquid collecting cylinder (200), the connecting pipe (1091) is located at the waist of the liquid collecting cylinder (200), a filter cartridge (201) is installed in the liquid collecting cylinder (200), a pressure cover (2011) is integrally provided at the upper end of the filter cartridge (201), the pressure cover (2011) is fixed to the upper surface of the liquid collecting cylinder (200) by screws, and an input pipe (2012) is centrally connected to the upper surface of the pressure cover (2011).

2. The magnetic pump with anti-clogging structure according to claim 1, characterized in that: The lower surface of the filter cartridge (201) is conical, and the conical bottom is connected to a short tube, on which a sewage valve (202) is installed. The lower surface of the filter cartridge (201) is provided with a through opening, and the through opening abuts against the short tube at the bottom of the filter cartridge (201).

3. The magnetic pump with anti-clogging structure according to claim 1, characterized in that: The inner surface of the outer magnetic sleeve (103) is provided with a plurality of outer magnetic rotors at equal intervals in a circular manner, the inner magnetic sleeve (104) is centrally connected with a shaft cylinder, the pump shaft (105) is fixedly inserted in the shaft cylinder, a sleeve is provided on the inner magnetic sleeve (104) and outside the shaft cylinder, and the outer surface of the sleeve is provided with a plurality of inner magnetic rotors at equal intervals in a circular manner.

4. The magnetic pump with an anti-clogging structure according to claim 1, characterized in that: A first assembly groove (1061) is provided at the front surface port of the bushing (106), and a sleeve (1031) is integrally connected to the outer side of the front surface of the isolation sleeve (103); when the isolation sleeve (103) is assembled in the outer magnetic sleeve (102), the sleeve (1031) is embedded in the first assembly groove (1061) and fixed by screws.

5. The magnetic pump with anti-clogging structure according to claim 4, characterized in that: A groove is centrally formed on the sleeve (1031), an end cover (107) is embedded in the groove, the end cover (107) is annular in structure, a bearing (1071) is connected inside the end cover (107), the pump shaft (105) is fixedly connected to the inner ring of the bearing (1071), and an oil plugging sheet (10711) is attached to the front surface of the bearing (1071).

6. The magnetic pump with anti-clogging structure according to claim 5, characterized in that: The front surface of the bushing (106) is also provided with a buffer groove (1062) and a second assembly groove (1063), and the diameter of the buffer groove (1062) is larger than the diameter of the first assembly groove (1061), and the diameter of the second assembly groove (1063) is larger than the diameter of the buffer groove (1062), and the first assembly groove (1061), the buffer groove (1062) and the second assembly groove (1063) are designed in a stepped shape.

7. The magnetic pump with anti-clogging structure according to claim 6, characterized in that: A sealing cover (10631) is embedded in the second assembly groove (1063), and the sealing cover (10631) is in contact with the surface of the oil plug (10711) of the bearing (1071). The pump sleeve (109) is fitted with the sealing cover (10631), and bolt holes are provided at the edges of the pump sleeve (109), the sealing cover (10631) and the bushing (106). The pump sleeve (109), the sealing cover (10631) and the bushing (106) are fixedly connected by bolts.

8. The magnetic pump with anti-clogging structure according to claim 7, characterized in that: A shallow groove (1092) is provided on one side where the pump sleeve (109) and the sealing cover (10631) meet, and a sealing ring (108) is built into the shallow groove (1092). When the pump sleeve (109) and the sealing cover (10631) are connected, the sealing ring (108) fills the connection gap.

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