Multi-stage external circulation vertical shield pump

Abstract

The utility model relates to the technical field of vertical multi-stage pumps, and discloses a multi-stage external circulation vertical shield pump which comprises a shield pump body and a treatment box, and a filtering mechanism is arranged in the treatment box. The filtering mechanism comprises a first filtering plate and a second filtering plate which are fixedly arranged in the treatment box, an anti-blocking assembly is arranged on the first filtering plate, and cleaning assemblies are arranged on the first filtering plate and the second filtering plate; and the anti-blocking assembly comprises a mounting block fixedly arranged in the treatment box. A fixing bolt is pulled out of a fixing hole, so that a U-shaped block and an insertion block are disconnected, then a sealing insertion plate is pulled outwards through a pull handle, a connecting rod can drive a brush rod to move, the brush rod repeatedly moves on a first filter plate and a second filter plate, impurities on the first filter plate and the second filter plate can be brushed away, and therefore the impurities on the first filter plate and the second filter plate can be removed. The cleaning effect is good, and meanwhile, the service life of the first filter plate and the second filter plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical multi-stage pumps, in particular to a multi-stage external circulation vertical canned pump. Background Art

[0002] A canned motor pump is a seal-free pump. The pump and the drive motor are sealed in a pressure vessel filled with the pumped medium. This pressure vessel has only static seals and a wire group to provide a rotating magnetic field and drive the rotor. This structure eliminates the rotating shaft sealing device of a traditional centrifugal pump, so it can be completely leak-free. Since there are no rolling bearings and motor fans, no lubricating oil is required and the noise is low.

[0003] The Chinese patent provides a multi-stage external circulation vertical shielded pump, with the publication number CN221704047U, which includes a shielded pump body, a liquid inlet pipe connected to the input end of the shielded pump body, and a pretreatment component connected to the right end of the liquid inlet pipe. The pretreatment component includes a liquid inlet part, and a filter part is arranged inside the liquid inlet part.

[0004] The shielded pump mentioned above has the effect of pre-filtering the liquid entering the shielded pump at multiple stages to prevent impurities from clogging the shielded pump. However, when the liquid is pre-filtered at multiple stages, impurities will remain in the storage box and are inconvenient to clean. The long-term accumulation of impurities may not only cause filter blockage, but also affect the pre-treatment filtering effect. Therefore, it is necessary to provide a multi-stage external circulation vertical shielded pump. Utility Model Content

[0005] The utility model aims to provide a multi-stage external circulation vertical canned pump to solve the problem that the existing canned pump is inconvenient to clean the impurities remaining after filtering during pretreatment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage external circulation vertical canned pump, comprising a canned pump body and a processing box, wherein a filtering mechanism is arranged in the processing box; the filtering mechanism comprises a first filter plate and a second filter plate fixedly arranged in the processing box, an anti-blocking assembly is arranged on the first filter plate, and a cleaning assembly is arranged on both the first filter plate and the second filter plate; the anti-blocking assembly comprises a mounting block fixedly arranged in the processing box, a sliding rod is slidably connected through the mounting block, a limiting block is fixedly arranged at the bottom of the sliding rod, a grille plate is slidably connected to the sliding rod, and a cleaning assembly is fixed on the grille plate A plurality of anti-blocking spikes are fixedly provided, a first spring and a second spring are sleeved on the sliding rod, a bracket is fixedly provided on the top of the sliding rod, and a vibration motor is fixedly provided on the bracket; the cleaning component comprises a cleaning port opened on the processing box, a sealing plug plate is sealed and plugged in the cleaning port, a plug block is fixedly provided on one side of the sealing plug plate, a U-shaped block plugged with the plug block is fixedly provided on the processing box, fixing holes are opened on the plug block and the U-shaped block, a fixing bolt is threadedly connected to the fixing hole, a connecting rod is fixedly connected to the other side of the sealing plug plate, and a brush rod is fixedly provided on one end of the connecting rod.

[0007] Preferably, the slide rod slides through the first filter plate, the number of the anti-blocking tips is the same as the number of filter holes of the first filter plate, and the anti-blocking tips are arranged directly below the corresponding filter holes.

[0008] Preferably, the first spring is fixedly arranged between the grid plate and the mounting block, and the second spring is fixedly arranged between the limiting block and the mounting block.

[0009] Preferably, a handle is fixedly provided on a side of the sealing plug plate away from the connecting rod.

[0010] Preferably, the first filter plate is arranged above the second filter plate, and a guide hopper is arranged below the second filter plate, and the guide hopper is fixedly arranged in the processing box.

[0011] Preferably, a liquid inlet pipe is connected to the processing box, and a liquid infusion pipe is connected between the bottom of the guide bucket and the shielded pump body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The multi-stage external circulation vertical shielded pump disconnects the U-shaped block from the plug block by pulling out the fixing bolt from the fixing hole, and then pulls the sealing plug plate outward through the pull handle, so that the connecting rod can drive the brush rod to move. By repeatedly moving the brush rod on the first filter plate and the second filter plate, impurities on the first filter plate and the second filter plate can be brushed off and discharged to the outside through the cleaning port, which has a good cleaning effect and prolongs the service life of the first filter plate and the second filter plate.

[0014] 2. When the multi-stage external circulation vertical shielded pump performs filtering through the first filter plate and the second filter plate, the vibration motor starts to work, and under the setting of the slide bar, the mounting block, the limit block, the first spring and the second spring, the grid plate can reciprocate up and down along the slide bar, and the anti-blocking tip on the grid plate can be repeatedly inserted into the filter hole on the first filter plate, so that the impurities in the filter hole can be pushed out, thereby avoiding the occurrence of blockage at the root and effectively improving the filtering efficiency and filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a multi-stage external circulation vertical canned motor pump in an embodiment of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the processing box in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the anti-blocking component in the embodiment of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the cleaning component in the embodiment of the utility model.

[0019] In the figure: 1. shielded pump body; 2. processing box; 3. liquid inlet pipe; 4. infusion pipe; 5. filtering mechanism; 501. first filter plate; 502. second filter plate; 503. guide bucket; 504. anti-blocking component; 5041. mounting block; 5042. slide bar; 5043. limit block; 5044. grille plate; 5045. anti-blocking tip; 5046. first spring; 5047. second spring; 5048. bracket; 5049. vibration motor; 505. cleaning component; 5051. cleaning port; 5052. sealing plug plate; 5053. pull handle; 5054. plug block; 5055. U-shaped block; 5056. fixing hole; 5057. fixing bolt; 5058. connecting rod; 5059. brush rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Combination Figure 1-Figure 4A multi-stage external circulation vertical canned pump comprises a canned pump body 1 and a processing box 2, a liquid inlet pipe 3 is connected to the processing box 2, and a filtering mechanism 5 is arranged in the processing box 2; the filtering mechanism 5 comprises a first filter plate 501 and a second filter plate 502 fixedly arranged in the processing box 2, a liquid infusion pipe 4 is connected between the bottom of the guide bucket 503 and the canned pump body 1, an anti-blocking component 504 is arranged on the first filter plate 501, and a cleaning component 505 is arranged on the first filter plate 501 and the second filter plate 502.

[0022] See also Figure 2 and Figure 3 , further, the anti-blocking assembly 504 includes a mounting block 5041 fixedly arranged in the processing box 2, a sliding rod 5042 is slidably connected to the mounting block 5041, a limit block 5043 is fixedly arranged at the bottom of the sliding rod 5042, a grid plate 5044 is slidably connected to the sliding rod 5042, a plurality of anti-blocking spikes 5045 are fixedly arranged on the grid plate 5044, a first spring 5046 and a second spring 5047 are sleeved on the sliding rod 5042, and a top spring 5046 on the sliding rod 5042 is provided with a plurality of anti-blocking spikes 5045 on the sliding rod 5042. A bracket 5048 is fixedly provided on the bracket 5048, and a vibration motor 5049 is fixedly provided on the bracket 5048; the sliding rod 5042 slides through the first filter plate 501, the number of anti-blocking spikes 5045 is the same as the number of filter holes of the first filter plate 501, and the anti-blocking spikes 5045 are arranged directly below the corresponding filter holes, the first spring 5046 is fixedly provided between the grid plate 5044 and the mounting block 5041, and the second spring 5047 is fixedly provided between the limit block 5043 and the mounting block 5041.

[0023] Specifically, when filtering is performed by the first filter plate 501 and the second filter plate 502, the vibration motor 5049 starts working, and under the setting of the slide bar 5042, the mounting block 5041, the limit block 5043, the first spring 5046 and the second spring 5047, the grid plate 5044 can vibrate back and forth up and down along the slide bar 5042, and the anti-blocking tip 5045 on the grid plate 5044 can be repeatedly inserted into the filter hole on the first filter plate 501, so that impurities in the filter hole can be pushed out, thereby avoiding the occurrence of blockage at the root and effectively improving the filtering efficiency and filtering effect.

[0024] See also Figure 2 and Figure 4, it is further obtained that the cleaning component 505 includes a cleaning port 5051 opened on the processing box 2, a sealing plug plate 5052 is sealed and plugged in the cleaning port 5051, a plug block 5054 is fixedly arranged on one side of the sealing plug plate 5052, a U-shaped block 5055 plugged with the plug block 5054 is fixedly arranged on the processing box 2, both the plug block 5054 and the U-shaped block 5055 are provided with fixing holes 5056, a fixing bolt 5057 is threadedly connected to the fixing hole 5056, a connecting rod 5058 is fixedly connected to the other side of the sealing plug plate 5052, a brush rod 5059 is fixedly arranged at one end of the connecting rod 5058, a pull handle 5053 is fixedly arranged on the side of the sealing plug plate 5052 away from the connecting rod 5058, the first filter plate 501 is arranged above the second filter plate 502, a guide bucket 503 is arranged below the second filter plate 502, and the guide bucket 503 is fixedly arranged in the processing box 2.

[0025] Specifically, by pulling out the fixing bolt 5057 from the fixing hole 5056, the U-shaped block 5055 is disconnected from the plug block 5054, and then the sealing plug plate 5052 is pulled outward by the pull handle 5053, so that the connecting rod 5058 can drive the brush rod 5059 to move, and by repeatedly moving the brush rod 5059 on the first filter plate 501 and the second filter plate 502, impurities on the first filter plate 501 and the second filter plate 502 can be brushed off and discharged to the outside through the cleaning port 5051, which has a good cleaning effect and prolongs the service life of the first filter plate 501 and the second filter plate 502.

[0026] In actual operation, the liquid inlet pipe 3 is connected with the external pipeline, so that the liquid enters the processing box 2 from the liquid inlet pipe 3, and the liquid falls into the guide bucket 503 after multi-stage filtration by the first filter plate 501 and the second filter plate 502. The shielded pump body 1 can be opened to pump the filtered liquid in the guide bucket 503 into the shielded pump body 1. When the first filter plate 501 and the second filter plate 502 are filtering, the vibration motor 5049 starts to work. Under the setting of the slide bar 5042, the mounting block 5041, the limit block 5043, the first spring 5046 and the second spring 5047, the grid plate 5044 can reciprocate up and down along the slide bar 5042, and the anti-blocking tip 5045 on the grid plate 5044 can be repeatedly inserted into the filter hole on the first filter plate 501, so that the impurities in the filter hole can be pushed out, thereby avoiding the occurrence of blockage at the root;

[0027] When it is necessary to clean the first filter plate 501 and the second filter plate 502, first pull out the fixing bolt 5057 from the fixing hole 5056 to release the connection between the U-shaped block 5055 and the plug block 5054, then pull the sealing plug plate 5052 outward through the pull handle 5053, so that the connecting rod 5058 can drive the brush rod 5059 to move, and by repeatedly moving the brush rod 5059 on the first filter plate 501 and the second filter plate 502, impurities on the first filter plate 501 and the second filter plate 502 can be brushed off and discharged to the outside through the cleaning port 5051. After cleaning, the sealing plug plate 5052 is inserted into the cleaning port 5051 again, and the plug block 5054 is docked with the U-shaped block 5055. Finally, the fixing bolt 5057 is inserted into the fixing hole 5056 to lock it.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage external circulation vertical canned motor pump, comprising a canned motor pump body (1) and a processing box (2), Features: A filtering mechanism (5) is provided in the processing box (2); The filtering mechanism (5) comprises a first filter plate (501) and a second filter plate (502) fixedly arranged in the processing box (2); an anti-blocking component (504) is arranged on the first filter plate (501); and a cleaning component (505) is arranged on both the first filter plate (501) and the second filter plate (502); The anti-blocking component (504) comprises a mounting block (5041) fixedly arranged in the processing box (2); a sliding rod (5042) is slidably connected to the mounting block (5041); a limit block (5043) is fixedly arranged at the bottom of the sliding rod (5042); a grid plate (5044) is slidably connected to the sliding rod (5042); a plurality of anti-blocking spikes (5045) are fixedly arranged on the grid plate (5044); a first spring (5046) and a second spring (5047) are sleeved on the sliding rod (5042); a bracket (5048) is fixedly arranged on the top of the sliding rod (5042); and a vibration motor (5049) is fixedly arranged on the bracket (5048); The cleaning assembly (505) comprises a cleaning port (5051) provided on a processing box (2), a sealing plug plate (5052) being sealed and plugged into the cleaning port (5051), a plug block (5054) being fixedly provided on one side of the sealing plug plate (5052), a U-shaped block (5055) being fixedly provided on the processing box (2) and plugged into the plug block (5054), a fixing hole (5056) being provided on both the plug block (5054) and the U-shaped block (5055), a fixing bolt (5057) being connected to the inner thread of the fixing hole (5056), a connecting rod (5058) being fixedly connected to the other side of the sealing plug plate (5052), and a brush rod (5059) being fixedly provided on one end of the connecting rod (5058).

2. A multi-stage external circulation vertical canned motor pump according to claim 1, Features: The sliding rod (5042) slides through the first filter plate (501), the number of the anti-blocking tips (5045) is the same as the number of filter holes of the first filter plate (501), and the anti-blocking tips (5045) are arranged directly below the corresponding filter holes.

3. A multi-stage external circulation vertical canned motor pump according to claim 2, Features: The first spring (5046) is fixedly disposed between the grid plate (5044) and the mounting block (5041), and the second spring (5047) is fixedly disposed between the limit block (5043) and the mounting block (5041).

4. A multi-stage external circulation vertical canned motor pump according to claim 1, Features: A pull handle (5053) is fixedly provided on one side of the sealing plug plate (5052) away from the connecting rod (5058).

5. A multi-stage external circulation vertical canned motor pump according to claim 1, Features: The first filter plate (501) is arranged above the second filter plate (502), a flow guide hopper (503) is arranged below the second filter plate (502), and the flow guide hopper (503) is fixedly arranged in the processing box (2).

6. A multi-stage external circulation vertical canned motor pump according to claim 5, Features: A liquid inlet pipe (3) is provided in communication with the processing box (2), and a liquid infusion pipe (4) is provided in communication between the bottom of the flow guide bucket (503) and the shielded pump body (1).

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