Vertical single-pole centrifugal pump and using method thereof

Abstract

The invention discloses a vertical single-pole centrifugal pump and a using method thereof. The centrifugal pump comprises a base, stand columns are fixedly connected to the four corners of the top of the base, the surfaces of the stand columns are movably sleeved with a centrifugal pump body, and fixing boxes are fixedly connected to the left side and the right side of the centrifugal pump body. Through the arrangement of the positioning mechanism, a screw rod can be rotated anticlockwise to drive a three-fork rod to be separated from a fluted disc upwards to relieve limiting, then a rotating rod is rotated clockwise, the rotating rod rotates to drive a rotating shaft and the fluted disc to rotate synchronously, the fluted disc rotates to drive a transmission column to rotate, and the transmission column rotates to force a frame and a rectangular plate to move rightwards; the rectangular plate moves rightwards to drive the inserting rod to move rightwards, the rectangular plate drives the telescopic rod to extend to do work in the moving process, finally, the inserting rod extends into the stand column to complete inserting and fixing, the screw is rotated clockwise to drive the three-fork rod to be meshed with the fluted disc downwards to limit rotation, and therefore installation and fixing between the centrifugal pump body and the base and between the centrifugal pump body and the stand column are completed.

Description

Technical Field

[0001] The invention relates to the technical field of single-stage centrifugal pumps, in particular to a vertical single-stage centrifugal pump and a use method thereof. Background Art

[0002] A single-stage centrifugal pump is mainly composed of a pump body, a pump cover, an electric motor with an output shaft, a pump shaft, a bearing seat, an impeller, a mechanical seal and a mechanical seal gland. The motor is connected to the pump shaft through an extended elastic coupling to drive the impeller to rotate. In the pump body, the impeller is the core component, which is responsible for sucking the liquid from the inlet and accelerating its rotation, and then throwing it out to the outlet of the pump body.

[0003] Single-stage centrifugal pumps are widely used in chemical, pharmaceutical, petroleum, metallurgy, papermaking, textile, construction, agriculture and other fields. However, most of the existing single-stage centrifugal pumps are bolted or welded to the bracket shell, which makes it impossible to separate and disassemble them in the subsequent transportation and conversion sites, reducing the convenience of assembling and transporting single-stage centrifugal pumps.

[0004] Therefore, it is necessary to redesign the single-stage centrifugal pump to effectively prevent the problem that most of the single-stage centrifugal pumps are bolted or welded to the bracket shell, resulting in the inability to separate and disassemble them in the subsequent transportation and conversion site. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a vertical single-stage centrifugal pump and a method of using the same, which has the advantage of convenient disassembly and assembly, and solves the problem that most single-stage centrifugal pumps are bolted or welded to the bracket shell, resulting in the inability to separate and disassemble them in the subsequent transportation and conversion site.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical single-stage centrifugal pump and a method of using the same, comprising:

[0007] Base;

[0008] The four corners of the top of the base are fixedly connected with columns, the surface of the columns is movably sleeved with a centrifugal pump body, the left and right sides of the centrifugal pump body are fixedly connected with a fixing box, and the back end of the inner wall of the fixing box is fixedly connected with a positioning mechanism;

[0009] The positioning mechanism includes a connecting plate, a rotating shaft, a rotating rod, a toothed disc, a transmission column, a plug rod, a rectangular plate, a frame, a telescopic rod, a screw and a tripod rod. The back end of the inner wall of the fixed box is fixedly connected to the connecting plate, the front end of the connecting plate is fixedly connected to the front end of the inner wall of the fixed box, the center of the inner cavity of the connecting plate is movably connected to the rotating shaft, the top of the rotating shaft is fixedly connected to the rotating rod, the top of the rotating rod passes through the top of the fixed box, the bottom of the rotating shaft passes through the bottom of the connecting plate and is fixedly connected to the toothed disc, the right side of the bottom of the toothed disc is fixedly connected to the transmission column, and the front end and back end of the right side of the fixed box are both movably connected. A plug rod is connected, the left side of the plug rod passes through the interior of the fixed box and is fixedly connected to a rectangular plate, the top of the rectangular plate is fixedly connected to a frame, the bottom of the transmission column is slidably connected to the top of the frame, the front end and the back end of the left side of the inner wall of the fixed box are fixedly connected to a telescopic rod, the right side of the telescopic rod is fixedly connected to the left side of the rectangular plate, the top of the fixed box is movably connected to a screw rod through a thread, the bottom of the screw rod passes through the interior of the fixed box and is fixedly connected to a tripod rod, the bottom of the tripod rod is meshed and connected to the left side of the toothed disc, and the bottom of the left side of the centrifugal pump body is connected to a filtering mechanism;

[0010] The filtering mechanism includes a flange, a filter cartridge, an end cover, a connecting pipe and a filter element. The bottom of the left side of the centrifugal pump body is connected to the flange, the left side of the flange is connected to the filter cartridge, the left side of the filter cartridge is movably connected to the end cover via a thread, the left side of the end cover is connected to the connecting pipe, the inner cavity of the filter cartridge is provided with a filter element, and the front end of the centrifugal pump body is movably connected to a cleaning mechanism via bolts.

[0011] As a preferred embodiment of the present invention, the cleaning mechanism includes a heat dissipation net, an L-shaped slider, a handle and a brush plate, the front end of the centrifugal pump body is movably connected to the heat dissipation net by bolts, the top and bottom of the heat dissipation net are slidably connected to the L-shaped slider, the front end of the L-shaped slider is fixedly connected to the handle, the right side of the L-shaped slider and located at the front end of the heat dissipation net is fixedly connected to a brush plate, and the back end of the brush plate is in contact with the front end of the heat dissipation net.

[0012] As a preferred embodiment of the present invention, a slide groove is provided at the top of the frame corresponding to the position of the transmission column, and the slide groove is used in conjunction with the transmission column.

[0013] As a preferred embodiment of the present invention, a return spring is sleeved on the surface of the telescopic rod, and the left and right sides of the return spring are fixedly connected to the surface of the telescopic rod and the left side of the rectangular plate respectively.

[0014] As a preferred embodiment of the present invention, the front end and the back end of the bottom of the inner wall of the fixing box are sleeved on the surface of the telescopic rod and fixedly connected with a support seat, and the support seat is used in conjunction with the telescopic rod.

[0015] As a preferred embodiment of the present invention, the front end and the back end of the insertion rod are fixedly connected to a limiting block, and the limiting block is used in conjunction with the insertion rod.

[0016] As a preferred embodiment of the present invention, a slot is provided on the surface of the column at a position corresponding to the insertion rod, and the slot is used in conjunction with the insertion rod.

[0017] As a preferred embodiment of the present invention, a threaded hole is provided on the surface of the fixing box at a position corresponding to the screw rod, and the screw rod is used in conjunction with the threaded hole.

[0018] As the preferred method of the present invention, the following steps are included:

[0019] S1; the user first places the base, the base cooperates with the column to stand vertically, and the centrifugal pump body is aligned with the column and placed downward and in contact with the top of the base, and then manually rotates the screw counterclockwise, the screw rotates and cooperates with the threaded hole to screw out upward and drive the tripod to move, the tripod moves upward to release the limit on the toothed disc, and then manually rotates the rotating rod clockwise, the rotation of the rotating rod drives the rotating shaft to rotate inside the connecting plate, the rotation of the rotating shaft drives the toothed disc to rotate, the rotation of the toothed disc drives the transmission column to rotate synchronously, the rotation of the transmission column drives the frame and the rectangular plate to move to the right, the rectangular plate moves to the right to extend the telescopic rod and move the plug rod to the right, the plug rod is inserted into the inside of the column to complete the card connection so that the centrifugal pump body and the column are connected and fixed, and finally the screw is rotated clockwise, the screw rotates and cooperates with the threaded hole to screw downward and drive the tripod downward to align with the toothed disc to engage and lock, the toothed disc cannot rotate, so that the transmission column, frame, rectangular plate and plug rod remain in place, thereby completing the installation, and similarly, the base and column can be removed and separated from the centrifugal pump body, so as to facilitate disassembly and transportation, and execute S2;

[0020] S2; When the centrifugal pump body is working, it drives the pump shaft and impeller to rotate, and the liquid is sucked in from the inlet of the impeller and enters the interior of the connecting pipe. The connecting pipe guides the liquid into the end cover and the interior of the filter cartridge, and the filter element inside the filter cartridge filters the impurities and particles in the liquid. The filtered liquid enters the flange and finally flows into the interior of the centrifugal pump body. As the impeller rotates, the liquid is accelerated and thrown to the outer edge. Under the action of centrifugal force, the liquid gains energy and leaves the outer edge of the impeller at a higher speed and enters the volute pump casing. In the volute, due to the gradual expansion of the flow channel, the speed of the liquid slows down, and part of the kinetic energy is converted into static pressure energy, and finally flows into the discharge pipe at a higher pressure and is sent to the required place. When replacing the filter element, it is necessary to remove the filter cartridge and the flange and rotate the end cover counterclockwise. The end cover is screwed out with the thread to expose the filter element inside the filter cartridge. Finally, manually take out the filter element and replace it with a new one, and reassemble it back to the flange to complete the inspection and replacement.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention, through the setting of the positioning mechanism, can make the counterclockwise rotation of the screw drive the tripod rod upward to disengage from the gear plate to release the limit, and then rotate the rotating rod clockwise, the rotation of the rotating rod drives the rotating shaft and the gear plate to rotate synchronously, the rotation of the gear plate drives the transmission column to rotate, the rotation of the transmission column forces the frame and the rectangular plate to move to the right, the rectangular plate moves to the right and drives the insertion rod to move to the right, the rectangular plate moves and drives the telescopic rod to extend during the movement, and finally the insertion rod extends to the inside of the column to complete the plug-in fixation, and the clockwise rotation of the screw drives the tripod rod downward to engage the gear plate to limit the rotation, thereby completing the installation and fixation between the centrifugal pump body and the base and the column.

[0023] 2. The present invention, through the setting of the filtering mechanism, can drive the pump shaft and the impeller to rotate when the centrifugal pump body is working, and the liquid is sucked into the inlet of the impeller and enters the interior of the connecting pipe. The connecting pipe guides the liquid into the end cover and the interior of the filter cartridge, and the filter element inside the filter cartridge filters the impurity particles from the liquid. The filtered liquid enters the flange and finally flows into the interior of the centrifugal pump body. When replacing the filter element, it is necessary to remove the filter cartridge and the flange and rotate the end cover counterclockwise. The end cover is screwed out with the thread to expose the filter element inside the filter cartridge. Finally, the filter element is manually taken out and replaced with a new one, and the reverse operation is performed to assemble it back on the flange to complete the inspection and replacement.

[0024] 3. Through the setting of the cleaning mechanism, the present invention can install the heat dissipation net on the surface of the centrifugal pump body by bolts, and then push the handle left and right to drive the L-shaped slider, the L-shaped slider moves stably along the heat dissipation net and drives the brush plate to move with it, and the brush plate moves to clean the dust on the surface of the heat dissipation net, thereby achieving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 A three-dimensional diagram of the middle fixed box mechanism;

[0027] Figure 3 For the present invention Figure 2 Exploded diagram of the middle connecting plate, rotating shaft and rotating rod structure;

[0028] Figure 4 For the present invention Figure 1 The three-dimensional diagram of the filter cartridge structure;

[0029] Figure 5 For the present invention Figure 1 Stereoscopic diagram of the center column structure;

[0030] Figure 6 For the present invention Figure 1 Three-dimensional diagram of the structure of the central heat dissipation network;

[0031] Figure 7 For the present invention Figure 6 A three-dimensional diagram of the structure of the medium L-shaped slider, handle and brush plate.

[0032] In the figure: 1. base; 2. column; 3. centrifugal pump body; 4. fixing box; 5. positioning mechanism; 501. connecting plate; 502. rotating shaft; 503. rotating rod; 504. gear plate; 505. transmission column; 506. plug rod; 507. rectangular plate; 508. frame; 509. telescopic rod; 510. screw rod; 511. tripod rod; 6. filtering mechanism; 61. flange; 62. filter cartridge; 63. end cover; 64. connecting pipe; 65. filter element; 7. cleaning mechanism; 71. heat dissipation net; 72. L-shaped slider; 73. handle; 74. brush plate; 8. slide groove; 9. return spring; 10. support seat; 11. limit block; 12. slot. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0034] like Figures 1 to 7 As shown, the present invention provides a vertical single-stage centrifugal pump and a method of using the same, comprising:

[0035] Base 1;

[0036] The four corners of the top of the base 1 are fixedly connected with columns 2, the surface of the columns 2 is movably sleeved with a centrifugal pump body 3, the left and right sides of the centrifugal pump body 3 are fixedly connected with a fixing box 4, and the back end of the inner wall of the fixing box 4 is fixedly connected with a positioning mechanism 5;

[0037] The positioning mechanism 5 includes a connecting plate 501, a rotating shaft 502, a rotating rod 503, a toothed disc 504, a transmission column 505, an insert rod 506, a rectangular plate 507, a frame 508, a telescopic rod 509, a screw 510 and a tripod rod 511. The back end of the inner wall of the fixed box 4 is fixedly connected with the connecting plate 501, the front end of the connecting plate 501 is fixedly connected with the front end of the inner wall of the fixed box 4, the center of the inner cavity of the connecting plate 501 is movably connected with the rotating shaft 502, the top of the rotating shaft 502 is fixedly connected with the rotating rod 503, the top of the rotating rod 503 passes through the top of the fixed box 4, the bottom of the rotating shaft 502 passes through the bottom of the connecting plate 501 and is fixedly connected with the toothed disc 504, the right side of the bottom of the toothed disc 504 is fixedly connected with the transmission column 505, the fixed box 4 The front end and the back end of the right side are both movably connected with an insertion rod 506, the left side of the insertion rod 506 penetrates into the interior of the fixed box 4 and is fixedly connected with a rectangular plate 507, the top of the rectangular plate 507 is fixedly connected with a frame 508, the bottom of the transmission column 505 is slidably connected with the top of the frame 508, the front end and the back end of the left side of the inner wall of the fixed box 4 are both fixedly connected with a telescopic rod 509, the right side of the telescopic rod 509 is fixedly connected with the left side of the rectangular plate 507, the top of the fixed box 4 is movably connected with a screw rod 510 through a thread, the bottom of the screw rod 510 penetrates into the interior of the fixed box 4 and is fixedly connected with a tripod rod 511, the bottom of the tripod rod 511 is meshedly connected with the left side of the toothed disc 504, and the bottom of the left side of the centrifugal pump body 3 is connected with a filtering mechanism 6;

[0038] The filtering mechanism 6 includes a flange 61, a filter cartridge 62, an end cover 63, a connecting pipe 64 and a filter element 65. The bottom of the left side of the centrifugal pump body 3 is connected to the flange 61, the left side of the flange 61 is connected to the filter cartridge 62, the left side of the filter cartridge 62 is movably connected to the end cover 63 through a thread, the left side of the end cover 63 is connected to the connecting pipe 64, the inner cavity of the filter cartridge 62 is provided with a filter element 65, and the front end of the centrifugal pump body 3 is movably connected to the cleaning mechanism 7 through bolts.

[0039] refer to Figure 6 The cleaning mechanism 7 includes a heat dissipation net 71, an L-shaped slider 72, a handle 73 and a brush plate 74. The front end of the centrifugal pump body 3 is movably connected to the heat dissipation net 71 by bolts. The top and bottom of the heat dissipation net 71 are slidably connected to the L-shaped slider 72. The front end of the L-shaped slider 72 is fixedly connected to the handle 73. The right side of the L-shaped slider 72 and the front end of the heat dissipation net 71 are fixedly connected to the brush plate 74. The back end of the brush plate 74 contacts the front end of the heat dissipation net 71.

[0040] As a technical optimization solution of the present invention, through the setting of the cleaning mechanism 7, the handle 73 can be pushed left and right to drive the L-shaped slider 72 to move with it, and the movement of the L-shaped slider 72 drives the brush plate 74 to move to clean the surface of the heat dissipation net 71.

[0041] refer to Figure 3A slide groove 8 is provided at the top of the frame 508 and at a position corresponding to the transmission column 505 , and the slide groove 8 is used in conjunction with the transmission column 505 .

[0042] As a technical optimization solution of the present invention, by setting the slide groove 8, the transmission column 505 can be moved inside the slide groove 8, and at the same time play a limiting role, thereby avoiding the transmission column 505 from being separated during the movement.

[0043] refer to Figure 3 A return spring 9 is sleeved on the surface of the telescopic rod 509 , and the left and right sides of the return spring 9 are fixedly connected to the surface of the telescopic rod 509 and the left side of the rectangular plate 507 respectively.

[0044] As a technical optimization solution of the present invention, the setting of the reset spring 9 can assist the telescopic rod 509 in working and play a role of reset buffer, thereby avoiding the telescopic rod 509 from being unable to reset after extension, resulting in the inability of the machine to continue working.

[0045] refer to Figure 2 The front end and the back end of the bottom of the inner wall of the fixing box 4 are sleeved on the surface of the telescopic rod 509 and are fixedly connected with a support seat 10, which is used in conjunction with the telescopic rod 509.

[0046] As a technical optimization solution of the present invention, the support seat 10 can assist the telescopic rod 509 in working, and at the same time play a supporting and fixing role, thereby avoiding the telescopic rod 509 from shaking due to excessive load during work.

[0047] refer to Figure 3 The front end and the back end of the insertion rod 506 are fixedly connected to the limiting block 11, and the limiting block 11 is used in conjunction with the insertion rod 506.

[0048] As a technical optimization solution of the present invention, the setting of the limit block 11 can assist the insertion rod 506 in working and play a limiting role at the same time, thereby preventing the insertion rod 506 from moving beyond a distance that affects the stability of the mechanical operation.

[0049] refer to Figure 5 A slot 12 is provided on the surface of the column 2 corresponding to the position of the insertion rod 506 , and the slot 12 is used in conjunction with the insertion rod 506 .

[0050] As a technical optimization solution of the present invention, the provision of the card slot 12 can assist the insertion rod 506 in its work and play a fixing role, thereby avoiding the phenomenon that the insertion rod 506 is stuck inside the card slot 12 due to the width of the card slot 12 being too narrow.

[0051] refer to Figure 2A threaded hole is provided on the surface of the fixing box 4 and corresponds to the position of the screw rod 510 , and the screw rod 510 is used in conjunction with the threaded hole.

[0052] As a technical optimization solution of the present invention, the setting of the screw rod 510 can assist the fixing box 4 in working, thereby preventing the screw rod 510 from slipping during the rotation process.

[0053] The working principle and use process of the present invention are as follows: when in use, first place the base 1, the base 1 is vertically erected in conjunction with the column 2, and the centrifugal pump body 3 is aligned with the column 2 and placed downward and in contact with the top of the base 1, and then the screw 510 is manually rotated counterclockwise, the screw 510 rotates to cooperate with the threaded hole to screw upward and drive the tripod 511 to move along, the tripod 511 moves upward to release the limit on the gear plate 504, and then the rotating rod 503 is manually rotated clockwise, the rotating rod 503 rotates to drive the rotating shaft 502 to rotate inside the connecting plate 501, the rotating shaft 502 rotates to drive the gear plate 504 to rotate along, the gear plate 504 rotates to drive the transmission column 505 to rotate synchronously, the transmission column 505 cooperates with the slide groove 8 to rotate inside the frame 508, and drives The frame 508 and the rectangular plate 507 move to the right, and the rectangular plate 507 moves to the right to extend the telescopic rod 509 and cooperate with the return spring 9 to stretch the workmanship. At the same time, the rectangular plate 507 drives the plug rod 506 to move to the right, and the plug rod 506 is inserted into the inside of the card slot 12 of the column 2 to the right to complete the card connection so that the centrifugal pump body 3 and the column 2 are connected and fixed. Finally, the screw 510 is rotated clockwise, and the screw 510 rotates to cooperate with the threaded hole to screw down and drive the tripod rod 511 to align with the gear plate 504 downward to engage and lock. The gear plate 504 cannot rotate to keep the transmission column 505, the frame 508, the rectangular plate 507 and the plug rod 506 in place, thereby completing the installation. Similarly, the base 1 and the column 2 and the centrifugal pump body 3 can be removed. Separation is achieved, thereby facilitating disassembly and transportation. When the centrifugal pump body 3 is working, it drives the pump shaft and impeller to rotate, and the liquid is sucked in from the inlet of the impeller and enters the interior of the connecting pipe 64. The connecting pipe 64 guides the liquid into the end cover 63 and the interior of the filter cartridge 62, and the filter element 65 inside the filter cartridge 62 filters the impurities and particles from the liquid. The filtered liquid enters the flange 61 and finally flows into the interior of the centrifugal pump body 3. As the impeller rotates, the liquid is accelerated and thrown to the outer edge. Under the action of centrifugal force, the liquid gains energy and leaves the outer edge of the impeller at a higher speed and enters the volute pump casing. In the volute, due to the gradual expansion of the flow channel, the speed of the liquid slows down, and part of the kinetic energy is converted into static pressure energy, and finally flows into the discharge pipe at a higher pressure and is delivered to the required When replacing the filter element 65, it is necessary to remove the filter cartridge 62 and the flange 61 and rotate the end cover 63 counterclockwise. The end cover 63 is screwed out with the thread to expose the filter element 65 inside the filter cartridge 62. Finally, the filter element 65 is manually taken out and replaced with a new one, and the reverse operation is performed to assemble it back on the flange 61 to complete the inspection and replacement. Finally, after the centrifugal pump body 3 has been working for a long time, when the heat dissipation net 71 absorbs dust and affects the heat dissipation effect, the user manually pushes the handle 73, and the handle 73 moves left and right to drive the L-shaped slider 72 to move smoothly along the heat dissipation net 71. The L-shaped slider 72 moves left and right to drive the brush plate 74 to follow and move. The brush plate 74 moves to clean the heat dissipation net 71, thereby achieving the cleaning function. The above completes the functions of disassembly, cleaning and filtering of the centrifugal pump body 3.

[0054] In summary: the vertical single-stage centrifugal pump and the method of using the same, through the base 1, the column 2, the centrifugal pump body 3, the fixing box 4, the positioning mechanism 5, the connecting plate 501, the rotating shaft 502, the rotating rod 503, the gear plate 504, the transmission column 505, the plug rod 506, the rectangular plate 507, the frame 508, the telescopic rod 509, the screw 510, the tripod rod 511, the filtering mechanism 6, the flange 61, the filter cartridge 62, the end cover 63, the connecting pipe 64, the filter element 65 and the cleaning mechanism 7 are used in combination, which solves the problem that most of the existing single-stage centrifugal pumps are bolted or welded to the bracket shell, resulting in the inability to separate and disassemble them in the subsequent transportation and conversion site.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although 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 vertical single-stage centrifugal pump, characterized in that: include: Base (1); The four corners of the top of the base (1) are fixedly connected to columns (2), the surface of the column (2) is movably sleeved with a centrifugal pump body (3), the left and right sides of the centrifugal pump body (3) are fixedly connected to a fixing box (4), and the back end of the inner wall of the fixing box (4) is fixedly connected to a positioning mechanism (5); The positioning mechanism (5) comprises a connecting plate (501), a rotating shaft (502), a rotating rod (503), a toothed disc (504), a transmission column (505), an inserting rod (506), a rectangular plate (507), a frame (508), a telescopic rod (509), a screw rod (510) and a tripod rod (511); the back end of the inner wall of the fixing box (4) is fixedly connected to the connecting plate (501); the front end of the connecting plate (501) is fixedly connected to the inner wall of the fixing box (4); The front end of the connecting plate (501) is fixedly connected, the center of the inner cavity of the connecting plate (501) is movably connected with a rotating shaft (502), the top of the rotating shaft (502) is fixedly connected with a rotating rod (503), the top of the rotating rod (503) passes through the top of the fixed box (4), the bottom of the rotating shaft (502) passes through the bottom of the connecting plate (501) and is fixedly connected with a toothed disc (504), and the right side of the bottom of the toothed disc (504) is fixedly connected with a transmission column (505). The front end and the back end of the right side of the fixed box (4) are both movably connected with an insertion rod (506), the left side of the insertion rod (506) penetrates into the interior of the fixed box (4) and is fixedly connected with a rectangular plate (507), the top of the rectangular plate (507) is fixedly connected with a frame (508), the bottom of the transmission column (505) is slidably connected with the top of the frame (508), the front end and the back end of the left side of the inner wall of the fixed box (4) are both fixedly connected with a telescopic rod (509), the right side of the telescopic rod (509) is fixedly connected with the left side of the rectangular plate (507), the top of the fixed box (4) is movably connected with a screw rod (510) through a thread, the bottom of the screw rod (510) penetrates into the interior of the fixed box (4) and is fixedly connected with a tripod rod (511), the bottom of the tripod rod (511) is meshedly connected with the left side of the toothed disc (504), and the bottom of the left side of the centrifugal pump body (3) is connected with a filtering mechanism (6); The filtering mechanism (6) comprises a flange (61), a filter cartridge (62), an end cover (63), a connecting pipe (64) and a filter element (65); the bottom of the left side of the centrifugal pump body (3) is connected to the flange (61); the left side of the flange (61) is connected to the filter cartridge (62); the left side of the filter cartridge (62) is movably connected to the end cover (63) via a thread; the left side of the end cover (63) is connected to the connecting pipe (64); the inner cavity of the filter cartridge (62) is provided with a filter element (65); and the front end of the centrifugal pump body (3) is movably connected to a cleaning mechanism (7) via bolts.

2. A vertical single-stage centrifugal pump according to claim 1, characterized in that: The cleaning mechanism (7) comprises a heat dissipation net (71), an L-shaped slider (72), a handle (73) and a brush plate (74); the front end of the centrifugal pump body (3) is movably connected to the heat dissipation net (71) via bolts; the top and bottom of the heat dissipation net (71) are slidably connected to the L-shaped slider (72); the front end of the L-shaped slider (72) is fixedly connected to the handle (73); the right side of the L-shaped slider (72) and located at the front end of the heat dissipation net (71) is fixedly connected to the brush plate (74); the back end of the brush plate (74) contacts the front end of the heat dissipation net (71).

3. A vertical single-stage centrifugal pump according to claim 1, characterized in that: A slide groove (8) is provided at the top of the frame (508) and at a position corresponding to the transmission column (505), and the slide groove (8) is used in conjunction with the transmission column (505).

4. A vertical single-stage centrifugal pump according to claim 1, characterized in that: A return spring (9) is sleeved on the surface of the telescopic rod (509), and the left and right sides of the return spring (9) are respectively fixedly connected to the surface of the telescopic rod (509) and the left side of the rectangular plate (507).

5. A vertical single-stage centrifugal pump according to claim 1, characterized in that: A support seat (10) is fixedly connected to the front end and the back end of the bottom of the inner wall of the fixing box (4) and is sleeved on the surface of the telescopic rod (509). The support seat (10) is used in conjunction with the telescopic rod (509).

6. A vertical single-stage centrifugal pump according to claim 1, characterized in that: The front end and the back end of the insertion rod (506) are both fixedly connected to a limiting block (11), and the limiting block (11) is used in conjunction with the insertion rod (506).

7. A vertical single-stage centrifugal pump according to claim 1, characterized in that: A slot (12) is provided on the surface of the column (2) at a position corresponding to the insertion rod (506), and the slot (12) is used in conjunction with the insertion rod (506).

8. A vertical single-stage centrifugal pump according to claim 1, characterized in that: A threaded hole is provided on the surface of the fixing box (4) at a position corresponding to the screw rod (510), and the screw rod (510) is used in conjunction with the threaded hole.

9. The method for using a vertical single-stage centrifugal pump according to claim 1, characterized in that: The steps include: S1； The user first places the base (1), and the base (1) is vertically erected in coordination with the column (2), and the centrifugal pump body (3) is aligned with the column (2) and placed downwardly so as to contact the top of the base (1), and then manually rotates the screw rod (510) counterclockwise, and the screw rod (510) rotates and rotates upward in coordination with the threaded hole and drives the tripod rod (511) to move accordingly, and the tripod rod (511) moves upward to release the limit on the toothed disc (504), and then manually rotates the rotating rod (503) clockwise, and the rotating rod (503) rotates and drives the rotating shaft (502) to rotate inside the connecting plate (501), and the rotating shaft (502) rotates and drives the toothed disc (504) to rotate accordingly, and the rotation of the toothed disc (504) drives the transmission column (505) to rotate synchronously, and the rotation of the transmission column (505) drives the frame (508) and the rectangular plate (507) moves to the right, the rectangular plate (507) moves to the right to extend the telescopic rod (509) and move the plug rod (506) to the right, the plug rod (506) is inserted to the right into the interior of the column (2) to complete the clamping connection so that the centrifugal pump body (3) and the column (2) are connected and fixed, and finally the screw rod (510) is rotated clockwise, the screw rod (510) rotates and screws downward into the matching threaded hole and drives the tripod rod (511) to align downward with the gear plate (504) to engage and lock, the gear plate (504) cannot rotate so that the transmission column (505), the frame (508), the rectangular plate (507) and the plug rod (506) remain in place, thereby completing the installation. Similarly, the base (1) and the column (2) can be removed and separated from the centrifugal pump body (3), thereby achieving convenient disassembly and transportation, and executing S2; S2; When the centrifugal pump body (3) is working, it drives the pump shaft and the impeller to rotate, and the liquid is sucked in from the inlet of the impeller and enters the interior of the connecting pipe (64). The connecting pipe (64) guides the liquid into the end cover (63) and the interior of the filter cartridge (62), and the filter element (65) inside the filter cartridge (62) filters the impurity particles from the liquid. The filtered liquid enters the flange (61) and finally flows into the interior of the centrifugal pump body (3). As the impeller rotates, the liquid is accelerated and thrown to the outer edge. Under the action of centrifugal force, the liquid gains energy and leaves the centrifugal pump at a higher speed. The outer edge of the impeller is opened to enter the volute pump casing. In the volute, due to the gradual expansion of the flow channel, the speed of the liquid slows down, and part of the kinetic energy is converted into static pressure energy. Finally, it flows into the discharge pipe at a higher pressure and is delivered to the required place. When replacing the filter element (65), it is necessary to remove the filter cartridge (62) and the flange (61) and rotate the end cover (63) counterclockwise. The end cover (63) is screwed out with the thread to expose the filter element (65) inside the filter cartridge (62). Finally, the filter element (65) is manually taken out and replaced with a new one, and the reverse operation is performed to assemble it back on the flange (61) to complete the inspection and replacement.

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