CN219262715U

CN219262715U - Pump body structure of centrifugal pump

Info

Publication number: CN219262715U
Application number: CN202320526600.6U
Authority: CN
Inventors: 叶美芳
Original assignee: Zhejiang Baiyun Pumps Co ltd
Current assignee: Zhejiang Baiyun Pumps Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-06-27
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a pump body structure of a centrifugal pump, which relates to the technical field of centrifugal pumps and comprises a pump body and a filtering unit; the outer surface of the lower end of the pump body is provided with a supporting seat, the side surface of the pump body is provided with an end cover, the center position of the side surface of the pump body is provided with a connecting shaft, the connecting shaft is provided with an impeller, the end cover is provided with a locking unit, the end cover is in sliding connection with a pump head, and the pump head is provided with a water outlet pipe; the filtering unit comprises a check ring, a positioning column, a filter screen, a sleeve, a screw hole, a two-way screw rod I and a hand wheel, wherein the check ring is arranged in the pump head, the positioning column is arranged on the check ring at an equal angle, and the check ring and the positioning column are in sliding connection with the filter screen. According to the utility model, the filter screen can be arranged in the centrifugal pump to filter sundries in water flow, so that the impeller of the centrifugal pump is protected, and the filter screen is convenient and quick to install; and the centrifugal pump is convenient to detach, so that the impeller is convenient to overhaul.

Description

Pump body structure of centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a pump body structure of a centrifugal pump.

Background

The centrifugal pump is a machine for pumping water by utilizing centrifugal motion of water, and its working principle is that before the pump is worked, the pump body and water inlet pipe must be filled with water to form vacuum state, when the impeller is quickly rotated, the blade can make water quickly rotate, the rotating water can be flown away from impeller under the action of centrifugal force, after the water in the pump is thrown out, the central portion of the impeller can form vacuum region. The water is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure (or water pressure), so that the circulation is not completed, and continuous water pumping can be realized. When the sundries in the water flow conveyed by the centrifugal pump are too much, the impeller of the centrifugal pump is damaged, and the filter assembly is inconvenient to install in the centrifugal pump due to the complex structure of the centrifugal pump; the existing centrifugal pump is complex to detach, and the impeller in the centrifugal pump is inconvenient to overhaul, so that the pump body structure of the centrifugal pump is provided.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides a pump body structure of a centrifugal pump, wherein a filter screen can be arranged in the centrifugal pump to filter sundries in water flow, so that an impeller of the centrifugal pump is protected, and the filter screen is convenient and quick to install; and the centrifugal pump is convenient to detach, so that the impeller is convenient to overhaul, and the problem in the background technology can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a centrifugal pump body structure comprises a pump body and a filtering unit;

pump body: the outer surface of the lower end is provided with a supporting seat, the side surface of the pump body is provided with an end cover, the center of the side surface of the pump body is provided with a connecting shaft, the connecting shaft is provided with an impeller, the end cover is provided with a locking unit, the end cover is in sliding connection with a pump head, and the pump head is provided with a water outlet pipe;

and a filtering unit: the novel two-way screw comprises a check ring, a positioning column, a filter screen, a sleeve, screw holes, two-way screw rods and a hand wheel, wherein the check ring is arranged in a pump head, the positioning column is arranged on the check ring at an equal angle, the check ring is in sliding connection with the positioning column, the four screw holes are respectively arranged in the pump head at equal angles, the screw holes are positioned between an impeller and the filter screen, the two-way screw rods are four in total, the directions of threads at two ends of the two-way screw rods are opposite, the hand wheel is arranged at the center of the two-way screw rods, the two opposite threads at the two ends of the two-way screw rods are respectively in threaded connection with the sleeve and the screw holes, and the sleeve is in cross shape and is in sliding connection with the filter screen.

The filter screen is arc filter screen, install the filter screen into the pump head in, and make the protruding end of filter screen aim at the inlet tube, carry out location installation to the filter screen through the reference column, drive bi-directional screw one and hand wheel through the sleeve and remove, aim at the screw to bi-directional screw one, rotate the hand wheel, hand wheel drive bi-directional screw one rotates, adjust bi-directional screw one and telescopic joint length, and make bi-directional screw one threaded connection advance in the screw, thereby fix the sleeve, spacing fixed the filter screen through the sleeve, make the filter screen laminating on the retaining ring, make the pump head connect on the end cover through locking unit, support the pump body through the supporting seat, the outside delivery pipe of inlet tube connection, the outside raceway of outlet pipe connection, during operation, outside delivery pipe is through the inlet tube with water transport pump head in, filter the debris in the water filters through the filter screen, because the filter screen is the arc, debris on the filter screen is removed with the help of the rivers of impact, effectively avoid debris to the filter screen to block up, the impeller is rotated through the connecting axle, water through the impeller in the pump body to the pump head water through the outside delivery pipe after the acceleration.

Further, the locking unit comprises a fixing plate, a second bidirectional screw rod, a connecting block, a sliding rod and a limiting plate, wherein the fixing plate is respectively arranged on two sides of the end cover and the pump head, the end cover corresponds to the fixing plate on the pump head, threads at two ends of the second bidirectional screw rod are opposite in direction, threads at two ends of the second bidirectional screw rod are respectively connected with the fixing plate on the end cover and the pump head in a threaded mode, the sliding rod is arranged in the middle of the second bidirectional screw rod, and the limiting plate is arranged at two ends of the sliding rod. The fixed plate sets up in keeping away from the position of end cover and pump head junction, it is spacing to the slide bar through the limiting plate, avoid the slide bar to break away from the connecting block, the arm of force structure is constituteed to slide bar and connecting block, thereby can be more light rotate two-way screw rod, when needs are connected end cover and pump head, the fixed plate on threaded connection end cover and the pump head has been respectively to two ends of two-way screw rod, drive the connecting block through slide bar and limiting plate and rotate, the connecting block drives two-way screw rod and rotates, two-way screw rod makes end cover and pump head remove in opposite directions through the fixed plate, thereby make end cover and pump head fixed connection.

Further, still include seal groove and sealing washer, the seal groove sets up the side at the end cover, the sealing washer sets up the side at the pump head, sealing washer sealing sliding connection seal groove. The sealing property of the connection between the pump head and the end cover is improved through the sealing groove and the sealing ring.

Further, still include mounting bracket and gyro wheel, the mounting bracket rotates the lower surface of connecting at the supporting seat, rotates on the mounting bracket and is connected with the gyro wheel. The support seat is convenient to move through the mounting frame and the idler wheels, so that the pump body is convenient to move.

Further, the pump further comprises a handle, and the handle is arranged on the pump head. The pump head is convenient to move by the handle.

Further, the pump further comprises a plug and an observation hole, wherein the observation hole is formed in the pump head, and the plug is arranged in the observation hole. The plug is a threaded plug, the observation hole is a threaded hole, the plug is in sealing threaded connection with the observation hole, and sundries in the pump head can be conveniently checked through the observation hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. sundries in entering water flow are filtered through the filter screen, so that the sundries in the water flow are effectively prevented from damaging the impeller, the impeller is protected, the filter screen can be quickly assembled and disassembled through the check ring, the positioning column, the sleeve, the screw hole and the two-way screw rod, convenience of disassembling the filter screen is improved, the filtered sundries are cleaned conveniently, the filter screen is arc-shaped, the speed of the filter screen contacting the water flow is inconsistent, sundries on the filter screen can be flushed by means of the water flow, the filter screen is prevented from being blocked by the sundries, and the filtering effect of the filter screen is guaranteed.

2. Make end cover and pump head can carry out the quick connect fixedly through fixed plate, two-way screw rod second and connecting block, improved the convenience of end cover and pump head installation dismantlement to be convenient for overhaul the impeller, constitute arm of force structure through slide bar and connecting block, can rotate two-way screw rod second, thereby effectively reduce the work load when the pump head is dismantled in the staff's installation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;

FIG. 3 is a schematic side sectional view of the present utility model.

In the figure: 1 pump body, 2 filter unit, 21 retaining ring, 22 reference column, 23 filter screen, 24 sleeve, 25 screw, 26 bi-directional screw one, 27 hand wheel, 3 locking unit, 31 fixed plate, 32 bi-directional screw two, 33 connecting block, 34 slide bar, 35 limiting plate, 4 end cover, 5 pump head, 6 inlet tube, 7 outlet tube, 8 connecting shaft, 9 impeller, 10 seal groove, 11 sealing washer, 12 supporting seat, 13 mounting bracket, 14 gyro wheel, 15 handle, 16 end cap, 17 observation hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present embodiment provides a technical solution: a centrifugal pump body structure comprises a pump body 1 and a filtering unit 2;

pump body 1: the outer surface of the lower end is provided with a supporting seat 12, the side surface of the pump body 1 is provided with an end cover 4, the center position of the side surface of the pump body 1 is provided with a connecting shaft 8, the connecting shaft 8 is provided with an impeller 9, the end cover 4 is provided with a locking unit 3, the end cover 4 is in sliding connection with a pump head 5, and the pump head 5 is provided with a water outlet pipe 7;

the filter unit 2: the two-way screw comprises a retainer ring 21, a positioning column 22, a filter screen 23, a sleeve 24, screw holes 25, two-way screw rods 26 and a hand wheel 27, wherein the retainer ring 21 is arranged in a pump head 5, the positioning column 22 is arranged on the retainer ring 21 at equal angles, the retainer ring 21 and the positioning column 22 are in sliding connection with the filter screen 23, the screw holes 25 are respectively arranged in the pump head 5 at equal angles, the screw holes 25 are positioned between an impeller 9 and the filter screen 23, the two-way screw rods 26 are respectively arranged at four, the directions of threads at two ends of the two-way screw rods 26 are opposite, the hand wheel 27 is arranged at the central position of the two-way screw rods 26, the two opposite threads at two ends of the two-way screw rods 26 are respectively in threaded connection with the sleeve 24 and the screw holes 25, the sleeve 24 is in a cross shape, and the sleeve 24 is in sliding connection with the filter screen 23.

The filter screen 23 is arc filter screen, install filter screen 23 into pump head 5, and make the protruding end of filter screen 23 aim at inlet tube 6, carry out the location installation to filter screen 23 through reference column 22, drive bi-directional screw 26 and hand wheel 27 through sleeve 24 and remove, aim at screw 25 to bi-directional screw 26, rotate hand wheel 27, hand wheel 27 drives bi-directional screw 26 and rotate, adjust the connection length of bi-directional screw 26 and sleeve 24, and make bi-directional screw 26 threaded connection advance screw 25, thereby fix sleeve 24, limit the filter screen 23 through sleeve 24 fixedly, make filter screen 23 laminating on retaining ring 21, make pump head 5 connect on end cover 4 through locking unit 3, support pump body 1 through supporting seat 12, outside delivery pipe is connected to inlet tube 6, the outside raceway is connected to outlet tube 7, during operation, outside delivery pipe is carried into pump head 5 through inlet tube 6, filter debris in the water through filter screen 23, because filter screen 23 is the arc, debris on filter screen 23 moves with the help of the impact, effectively avoid dying

filter screen

23, 1 drives impeller 9 through connecting axle 8 and carries out the impeller 9 and carries out the inside delivery pipe through the inside of the outside through the outlet tube 9 and carries out the inside delivery pipe after the pump head 7.

The locking unit 3 comprises a fixing plate 31, a two-way screw rod 32, a connecting block 33, a slide rod 34 and a limiting plate 35, wherein the fixing plate 31 is respectively arranged on two sides of the end cover 4 and the pump head 5, the end cover 4 corresponds to the fixing plate 31 on the pump head 5, threads at two ends of the two-way screw rod 32 are opposite in direction, threads at two ends of the two-way screw rod 32 are respectively connected with the fixing plate 31 on the end cover 4 and the pump head 5 in a threaded manner, the slide rod 34 is arranged in the middle of the two-way screw rod 32, and the limiting plate 35 is arranged at two ends of the slide rod 34. The fixed plate 31 is arranged at a position far away from the joint of the end cover 4 and the pump head 5, the limit plate 35 is used for limiting the slide rod 34, the slide rod 34 is prevented from being separated from the connecting block 33, the slide rod 34 and the connecting block 33 form a force arm structure, so that the two-way screw rod 32 can be rotated more easily, when the end cover 4 and the pump head 5 are required to be connected, the two ends of the two-way screw rod 32 are respectively connected with the fixed plate 31 on the end cover 4 and the pump head 5 in a threaded manner, the connecting block 33 is driven to rotate through the slide rod 34 and the limit plate 35, the connecting block 33 is used for driving the two-way screw rod 32 to rotate, and the two-way screw rod 32 enables the end cover 4 and the pump head 5 to move oppositely through the fixed plate 31, so that the end cover 4 and the pump head 5 are fixedly connected.

Still include seal groove 10 and sealing washer 11, seal groove 10 sets up the side at end cover 4, and sealing washer 11 sets up the side at pump head 5, and sealing washer 11 sealing sliding connection seal groove 10. The sealing of the connection of the pump head 5 to the end cap 4 is improved by the sealing groove 10 and the sealing ring 11.

The device further comprises a mounting frame 13 and rollers 14, wherein the mounting frame 13 is rotatably connected to the lower surface of the supporting seat 12, and the rollers 14 are rotatably connected to the mounting frame 13. The support seat 12 is convenient to move through the mounting frame 13 and the roller 14, so that the pump body 1 is convenient to move.

Also comprises a handle 15, wherein the handle 15 is arranged on the pump head 5. The pump head 5 is easily moved by the handle 15.

The pump head further comprises a plug 16 and an observation hole 17, wherein the observation hole 17 is arranged on the pump head 5, and the plug 16 is arranged in the observation hole 17. The plug 16 is a threaded plug, the observation hole 17 is a threaded hole, the plug 16 is in sealing threaded connection with the observation hole 17, and sundries in the pump head 5 can be conveniently checked through the observation hole 17.

The working principle of the pump body structure of the centrifugal pump provided by the utility model is as follows: the support seat 12 is convenient to move through the mounting frame 13 and the roller 14, so that the pump body 1 is convenient to move, the filter screen 23 is arranged in the pump head 5, the protruding end of the filter screen 23 is aligned with the water inlet pipe 6, the filter screen 23 is positioned and arranged through the positioning column 22, the bidirectional screw 26 and the hand wheel 27 are driven to move through the sleeve 24, the bidirectional screw 26 is aligned with the screw hole 25, the hand wheel 27 is rotated, the hand wheel 27 drives the bidirectional screw 26 to rotate, the connection length of the bidirectional screw 26 and the sleeve 24 is adjusted, the bidirectional screw 26 is in threaded connection with the screw hole 25, the sleeve 24 is fixed, the filter screen 23 is limited and fixed through the sleeve 24, the filter screen 23 is attached to the retainer ring 21, the pump head 5 is moved through the handle 15, two ends of the bidirectional screw 32 are respectively connected with the end cover 4 and the fixed plate 31 on the pump head 5 through threads, the connecting block 33 is driven to rotate by the slide bar 34 and the limiting plate 35, the connecting block 33 drives the two-way screw rod 32 to rotate, the two-way screw rod 32 enables the end cover 4 and the pump head 5 to move in opposite directions by the fixing plate 31, so that the end cover 4 and the pump head 5 are fixedly connected, the tightness of the connection between the pump head 5 and the end cover 4 is improved by the sealing groove 10 and the sealing ring 11, the water inlet pipe 6 is connected with an external water supply pipe, the water outlet pipe 7 is connected with the external water delivery pipe, in operation, the external water supply pipe conveys water into the pump head 5 by the water inlet pipe 6, impurities in the water are filtered by the filter screen 23, because the filter screen 23 is arc-shaped, the impurities on the filter screen 23 move by means of the impacted water flow, the blockage of the filter screen 23 is effectively avoided, the pump body 1 drives the impeller 9 to rotate by the connecting shaft 8, the water in the pump head 5 is accelerated by the impeller 9 and then conveyed by the water outlet pipe 7, when the pump is stopped, the observation hole 17 is opened through the plug 16, and the sundries in the pump head 5 are conveniently checked through the observation hole 17, so that the sundries filtered in the pump head 5 are prevented from being accumulated.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A centrifugal pump body structure, its characterized in that: comprises a pump body (1) and a filtering unit (2);

pump body (1): the outer surface of the lower end is provided with a supporting seat (12), the side surface of the pump body (1) is provided with an end cover (4), the center position of the side surface of the pump body (1) is provided with a connecting shaft (8), the connecting shaft (8) is provided with an impeller (9), the end cover (4) is provided with a locking unit (3), the end cover (4) is in sliding connection with a pump head (5), and the pump head (5) is provided with a water outlet pipe (7);

filtration unit (2): the novel double-screw pump comprises a retainer ring (21), a positioning column (22), a filter screen (23), a sleeve (24), screw holes (25), a double-screw first (26) and a hand wheel (27), wherein the retainer ring (21) is arranged in a pump head (5), the positioning column (22) is arranged on the retainer ring (21) at equal angles, the retainer ring (21) and the positioning column (22) are in sliding connection with the filter screen (23), the screw holes (25) are respectively arranged in the pump head (5) at four equal angles, the screw holes (25) are positioned between an impeller (9) and the filter screen (23), the double-screw first (26) is respectively arranged at four angles, threads at two ends of the double-screw first (26) are opposite in direction, the center position of the double-screw first (26) is provided with the hand wheel (27), threads at two ends of the double-screw first (26) are respectively in threaded connection with the sleeve (24) and the screw holes (25), and the sleeve (24) is in a cross shape, and the sleeve (24) is in sliding connection with the filter screen (23).

2. A centrifugal pump body structure according to claim 1, wherein: the locking unit (3) comprises a fixing plate (31), a two-way screw rod (32), a connecting block (33), a slide rod (34) and a limiting plate (35), wherein the fixing plate (31) is arranged on two sides of the end cover (4) and the pump head (5) respectively, the fixing plate (31) on the end cover (4) and the pump head (5) is corresponding, threads at two ends of the two-way screw rod (32) are opposite in direction, the two ends of the two-way screw rod (32) are in threaded connection with the fixing plate (31) on the end cover (4) and the pump head (5) respectively in opposite directions, the slide rod (34) is arranged at the middle position of the two-way screw rod (32), and the limiting plates (35) are arranged at two ends of the slide rod (34).

3. A centrifugal pump body structure according to claim 1, wherein: still include seal groove (10) and sealing washer (11), seal groove (10) set up the side at end cover (4), sealing washer (11) set up the side at pump head (5), and sealing washer (11) seal sliding connection seal groove (10).

4. A centrifugal pump body structure according to claim 1, wherein: still include mounting bracket (13) and gyro wheel (14), mounting bracket (13) rotate and connect in the lower surface of supporting seat (12), rotate on mounting bracket (13) and be connected with gyro wheel (14).

5. A centrifugal pump body structure according to claim 1, wherein: the pump further comprises a handle (15), and the handle (15) is arranged on the pump head (5).

6. A centrifugal pump body structure according to claim 1, wherein: the novel pump head is characterized by further comprising a plug (16) and an observation hole (17), wherein the observation hole (17) is formed in the pump head (5), and the plug (16) is arranged in the observation hole (17).