Wear-resistant centrifugal pump

Abstract

The utility model discloses a wear-resistant centrifugal pump, which belongs to the technical field of centrifugal pumps and comprises a pump body, a water outlet of the pump body is fixedly connected with a water outlet pipe, the outer side wall of a second arc-shaped clamping plate is fixedly connected with a connecting plate, one side, far away from the second arc-shaped clamping plate, of the connecting plate is fixedly connected with an outer frame, and the inside of the outer frame is fixedly connected with a filter screen. The inner side wall of the pump body is fixedly connected with a positioning plate, and the outer frame is matched with the positioning plate. According to the wear-resistant centrifugal pump, through cooperative use of a first attaching groove and a second attaching groove, an impeller in the pump body is convenient to maintain, excessive impurities are prevented from being deposited on the impeller, through cooperative use of a first arc-shaped clamping plate and a second arc-shaped clamping plate, the first attaching groove and the second attaching groove are blocked, and the service life of the impeller is prolonged. And through cooperative use of a connecting plate, an outer frame, a filter screen and a positioning plate, water flowing into the pump body is filtered, and the content of impurities in the water is reduced, so that the filter screen is conveniently detached and replaced, and meanwhile, a worker can conveniently overhaul the impeller in the pump body.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifugal pumps, and in particular relates to a wear-resistant centrifugal pump. Background Art

[0002] A centrifugal pump is a common dynamic pump that draws in and accelerates liquid by rotating the impeller, and then ejects the liquid under the action of centrifugal force at the outer edge of the impeller. Centrifugal pumps are mainly used to transport liquids and are commonly found in industries such as industry, construction, and agriculture. They have a simple working principle, compact structure, stable operation, and are suitable for transporting liquids of different viscosities.

[0003] After checking the public (announcement) number: CN209083694U, a wear-resistant centrifugal pump is disclosed. This technology discloses "including a counterweight base and a machine box, a vibration-damping pad is arranged in the middle of the lower end of the counterweight base, a support one is welded to one side of the upper end of the counterweight base, a pump body is arranged on the upper end of the support one, a water inlet pipe is arranged in the middle of the lower end of one side wall of the pump body, a filter is arranged in the water inlet pipe, and a cleaning door is arranged in the middle of the other side wall of the pump body. The beneficial effect is that: the utility model can effectively reduce the vibration of the pump body and the drive motor by arranging the vibration-damping pad, and can ensure the stability of the centrifugal pump; by arranging the cleaning door, the pump body can be automatically cleaned in time, and the pump body does not need to be disassembled as a whole during cleaning, which can improve the convenience of cleaning the centrifugal pump; by arranging the filter, it can effectively prevent mud and sand from entering the pump body during the pumping process, prevent the wear of the impeller, and improve the service life of the centrifugal pump".

[0004] However, according to the above-mentioned reference documents, since centrifugal pumps in industry transport liquids, which may contain impurities, it may be inconvenient to open the casing of the centrifugal pump impeller during the use of the centrifugal pump, thereby making it inconvenient to clean the impeller without disassembling the entire unit components, and it is also inconvenient to disassemble and clean the filter screen at the water inlet of the centrifugal pump;

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a wear-resistant centrifugal pump to overcome the above technical problems existing in the existing related technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A wear-resistant centrifugal pump comprises a pump body, wherein the water outlet of the pump body is fixedly connected to the water outlet pipe, the water inlet of the pump body is fixedly connected to the water inlet pipe, a first fitting groove is opened on the pump body, a second fitting groove is opened on the pump body through the first fitting groove, a first arc-shaped clamping plate is fitted to the pump body through the first fitting groove, a second arc-shaped clamping plate is fitted to the pump body through the second fitting groove, the first arc-shaped clamping plate is fixedly connected to the second arc-shaped clamping plate, the outer side wall of the second arc-shaped clamping plate is fixedly connected to a connecting plate, the side of the connecting plate away from the second arc-shaped clamping plate is fixedly connected to an outer frame, a filter screen is fixedly connected to the inside of the outer frame, a positioning plate is fixedly connected to the inner side wall of the pump body, and the outer frame is adapted to the positioning plate.

[0009] Preferably, a buffer pad is fixedly connected to the inner side wall of the positioning plate, and the buffer pad is adapted to the positioning plate.

[0010] By providing the buffer pad, the connectivity between the outer frame and the positioning plate is increased.

[0011] Preferably, self-tapping screws are threaded through the first arc-shaped clamping plate, and the first arc-shaped clamping plate is detachably connected to the pump body through the self-tapping screws.

[0012] By arranging the self-tapping screws, the first arc-shaped clamping plate is fixed on the pump body.

[0013] Preferably, a positioning rod is fixedly connected to the first arc-shaped clamping plate, a positioning hole is opened on the pump body, and the outer circumference of the positioning rod is equal to the inner circumference of the positioning hole.

[0014] By providing the positioning rod and the positioning hole, the accuracy of the installation of the first arc-shaped clamping plate is increased.

[0015] Preferably, the pump body is fixedly connected to a spring via a positioning hole, one end of the spring is fixedly connected to a slide plate, and the slide plate is slidably connected to the pump body via the positioning hole.

[0016] By providing the spring and the slide plate, the connectivity between the first arc-shaped clamping plate and the pump body is increased, and the first arc-shaped clamping plate can also be easily moved to separate from the pump body.

[0017] Preferably, a mounting seat is welded to the bottom of the pump body, a connecting block is fixedly connected to the top of the mounting seat, and the top of the connecting block is fixedly connected to one end of the pump body.

[0018] By arranging the mounting seat and the connecting block, stable support for the pump body is achieved.

[0019] To sum up, the technical effects and advantages of the utility model are as follows: the wear-resistant centrifugal pump, through the coordinated use of the first fitting groove and the second fitting groove, is convenient for repairing the impeller inside the pump body to avoid excessive impurities from being deposited on the impeller, and the first fitting groove and the second fitting groove are blocked through the coordinated use of the first arc-shaped clamping plate and the second arc-shaped clamping plate, and then the water flowing into the pump body is filtered and treated through the coordinated use of the connecting plate, the outer frame, the filter screen and the positioning plate to reduce the content of impurities in the water, thereby facilitating the disassembly and replacement of the filter screen, and at the same time facilitating the staff to inspect and repair the impeller inside the pump body.

[0020] Through the action of self-tapping screws, the first arc-shaped clamping plate can be detachably installed on the pump body. Through the coordinated use of the positioning rod and the positioning hole, the installation accuracy of the first arc-shaped clamping plate is increased. Through the coordinated use of the spring and the slide plate, the first arc-shaped clamping plate can be easily popped up, thereby achieving the effect of detachably fixing the first arc-shaped clamping plate on the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the first arc-shaped clamping plate and its related structures of the utility model;

[0023] Figure 3 This is a schematic diagram of the positioning plate of the utility model and its related structures;

[0024] Figure 4 This is a schematic diagram of the skateboard of the utility model and its related structures.

[0025] In the figure: 1. pump body; 2. water outlet pipe; 3. water inlet pipe; 4. first fitting groove; 5. second fitting groove; 6. first arc-shaped clamping plate; 7. second arc-shaped clamping plate; 8. connecting plate; 9. outer frame; 10. filter screen; 11. positioning plate; 12. buffer pad; 13. self-tapping screw; 14. positioning rod; 15. positioning hole; 16. spring; 17. slide plate; 18. mounting seat; 19. connecting block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-3A wear-resistant centrifugal pump comprises a pump body 1, a water outlet of the pump body 1 is fixedly connected with a water outlet pipe 2, a water inlet of the pump body 1 is fixedly connected with a water inlet pipe 3, the water inlet pipe 3 is located at the center of one end of the pump body 1, a first fitting groove 4 is opened on the pump body 1, a second fitting groove 5 is opened on the pump body 1 through the first fitting groove 4, the first fitting groove 4 and the second fitting groove 5 are connected, a first arc-shaped card plate 6 is fitted with the first fitting groove 4 on the pump body 1, the first arc-shaped card plate 6 is fitted with the first fitting groove 4, a second arc-shaped card plate 7 is fitted with the pump body 1 through the second fitting groove 5, the first arc-shaped card plate 6 is fixedly connected with the second arc-shaped card plate 7, the second arc-shaped card plate 7 is fitted with the second fitting groove 5, and the outer wall of the second arc-shaped card plate 7 is fixedly connected with the second fitting groove 5. A connecting plate 8 is fixedly connected, and the connecting plate 8 and the outer frame 9 are both fitted with the pump body 1. The side of the connecting plate 8 away from the second arc-shaped clamping plate 7 is fixedly connected with the outer frame 9. The inner circumference of the outer frame 9 is larger than the inner circumference of the water inlet of the pump body 1. A filter screen 10 is fixedly connected inside the outer frame 9, and a positioning plate 11 is fixedly connected to the inner side wall of the pump body 1. The outer frame 9 is adapted to the positioning plate 11. After the first arc-shaped clamping plate 6 and the second arc-shaped clamping plate 7 are moved to separate from the first fitting groove 4 and the second fitting groove 5, the connecting plate 8 drives the outer frame 9 to move to separate from the positioning plate 11, so that the filter screen 10 can be disassembled and cleaned to avoid clogging of the filter holes on the filter screen 10. At the same time, the impeller in the pump body 1 can be cleaned to avoid excessive impurities from accumulating on the impeller.

[0028] Reference Figure 2-3 A buffer pad 12 is fixedly connected to the inner wall of the positioning plate 11. The buffer pad 12 is mainly made of rubber material and has a certain elasticity. The buffer pad 12 is adapted to the positioning plate 11. The buffer pad 12 increases the fitting effect between the outer frame 9 and the positioning plate 11, so that the outer frame 9 and the pump body 1 are fitted together.

[0029] Reference Figure 2 The first arc-shaped clamping plate 6 is threaded with self-tapping screws 13, and four self-tapping screws 13 are arranged. The four self-tapping screws 13 are evenly distributed on the first arc-shaped clamping plate 6. The first arc-shaped clamping plate 6 is detachably connected to the pump body 1 through the self-tapping screws 13. The self-tapping screws 13 facilitate the installation of the first arc-shaped clamping plate 6 on the pump body 1.

[0030] Reference Figure 2 and Figure 4 A positioning rod 14 is fixedly connected to the first arc-shaped clamping plate 6, and a positioning hole 15 is opened on the pump body 1. The outer circumference of the positioning rod 14 is equal to the inner circumference of the positioning hole 15. The positioning rod 14 and the positioning hole 15 increase the accuracy of the installation of the first arc-shaped clamping plate 6.

[0031] Reference Figure 4The pump body 1 is fixedly connected with a spring 16 through a positioning hole 15, and one end of the spring 16 is fixedly connected with a slide plate 17. The outer circumference of the slide plate 17 is equal to the inner circumference of the positioning hole 15. The slide plate 17 is slidably connected to the pump body 1 through the positioning hole 15. The spring 16 and the slide plate 17 increase the fitting effect between the first arc-shaped clip plate 6 and the pump body 1. At the same time, the first arc-shaped clip plate 6 can be popped up when the first arc-shaped clip plate 6 is disassembled, so that the first arc-shaped clip plate 6 is moved to the pump body 1 for separation.

[0032] Reference Figure 1 A mounting seat 18 is welded at the bottom of the pump body 1, and a connecting block 19 is fixedly connected to the top of the mounting seat 18. Two connecting blocks 19 are provided, and the two connecting blocks 19 are symmetrically distributed with the central axis of the mounting seat 18 as the center. The top of the connecting block 19 is fixedly connected to one end of the pump body 1. The mounting seat 18 facilitates the installation and use of the pump body 1, and the connecting block 19 increases the stability of the impeller position of the pump body 1.

[0033] Working principle: First, the first arc-shaped cardboard 6 and the second arc-shaped cardboard 7 are used to block the gap of the pump body 1 through the first fitting groove 4 and the second fitting groove 5. The positioning rod 14 moves to the inside of the positioning hole 15 to increase the accuracy of the movement of the first arc-shaped cardboard 6. The slide plate 17 moves in the direction close to the spring 16. The spring 16 is compressed and deformed. The self-tapping screw 13 is threaded through the first arc-shaped cardboard 6 and then connected to the pump body 1, so that the first arc-shaped cardboard 6 and the second arc-shaped cardboard 7 block the gap. After the self-tapping screw 13 rotates and moves to separate from the first arc-shaped cardboard 6, the spring 16 returns to its initial state, and the slide plate 17 is resilient. Open, under the action of the positioning rod 14, the first arc-shaped card plate 6 and the second arc-shaped card plate 7 are popped up, so that the first arc-shaped card plate 6 is conveniently removed from the pump body 1. After the first arc-shaped card plate 6 is installed on the pump body 1, the connecting plate 8 drives the outer frame 9 to move to the inside of the positioning plate 11, and is tightly attached to the buffer pad 12, so that the filter screen 10 moves and is firmly fixed at the water inlet of the pump body 1, and the water flowing into the pump body 1 is filtered, so that the filter screen 10 is convenient to disassemble and replace, and the gap on the pump body 1 is no longer closed, so that the staff can clean the impeller inside the pump body 1 to avoid excessive impurities accumulating on the impeller.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear-resistant centrifugal pump, comprising a pump body (1), characterized in that: The water outlet of the pump body (1) is fixedly connected to a water outlet pipe (2), the water inlet of the pump body (1) is fixedly connected to a water inlet pipe (3), a first fitting groove (4) is formed on the pump body (1), a second fitting groove (5) is formed on the pump body (1) through the first fitting groove (4), a first arc-shaped clamping plate (6) is fitted on the pump body (1) through the first fitting groove (4), and a second arc-shaped clamping plate (7) is fitted on the pump body (1) through the second fitting groove (5). ), the first arc-shaped clamping plate (6) is fixedly connected to the second arc-shaped clamping plate (7), the outer side wall of the second arc-shaped clamping plate (7) is fixedly connected to a connecting plate (8), the side of the connecting plate (8) away from the second arc-shaped clamping plate (7) is fixedly connected to an outer frame (9), the interior of the outer frame (9) is fixedly connected to a filter screen (10), the inner side wall of the pump body (1) is fixedly connected to a positioning plate (11), and the outer frame (9) is adapted to match the positioning plate (11).

2. A wear-resistant centrifugal pump according to claim 1, characterized in that: A buffer pad (12) is fixedly connected to the inner side wall of the positioning plate (11), and the buffer pad (12) is adapted to the positioning plate (11).

3. A wear-resistant centrifugal pump according to claim 1, characterized in that: The first arc-shaped clamping plate (6) is threaded with a self-tapping screw (13), and the first arc-shaped clamping plate (6) is detachably connected to the pump body (1) via the self-tapping screw (13).

4. A wear-resistant centrifugal pump according to claim 1, characterized in that: A positioning rod (14) is fixedly connected to the first arc-shaped clamping plate (6), a positioning hole (15) is provided on the pump body (1), and the outer circumference of the positioning rod (14) is equal to the inner circumference of the positioning hole (15).

5. A wear-resistant centrifugal pump according to claim 4, characterized in that: The pump body (1) is fixedly connected to a spring (16) via a positioning hole (15); one end of the spring (16) is fixedly connected to a slide plate (17); and the slide plate (17) is slidably connected to the pump body (1) via the positioning hole (15).

6. A wear-resistant centrifugal pump according to claim 1, characterized in that: A mounting seat (18) is welded to the bottom of the pump body (1), a connecting block (19) is fixedly connected to the top of the mounting seat (18), and a top of the connecting block (19) is fixedly connected to one end of the pump body (1).

Images