Double suction pump with slag stopping structure

Abstract

The utility model discloses a double suction pump with a slag stopping structure, which comprises a pump body and a water inlet pipe connected to the upper end of the pump body, the water inlet pipe is connected with a filter screen, and the upper end of the filter screen is connected with a slag discharging mechanism; the deslagging mechanism comprises a turntable and is annular; a plurality of arc-shaped grooves are fixedly connected in the rotating disc; the arc-shaped grooves are arranged in the turntable in a central symmetry manner; a push rod is clamped on the inner wall of the arc-shaped groove; the lower end of the push rod is connected with a push plate I; the bottom end of the first push plate is attached to the upper end of the filter screen. And the side wall of the turntable is connected with a fluted disc meshed with the outer wall of the turntable. The residue discharging mechanism is arranged on the filter screen in the water inlet pipe, filter residues are pushed into the cavity on the outer side of the filter screen, and the filter residues on the filter screen can be conveniently removed.

Description

Technical Field

[0001] The utility model relates to the technical field of double-suction pumps, in particular to a double-suction pump with a slag blocking structure. Background Art

[0002] As an important form of centrifugal pump, double-suction pump is widely used in engineering because of its high head and large flow rate. When double-suction pump is used for a long time, it contains a lot of large slag and stone inside. When the double-suction pump is pumping, the large slag and stone are easy to cause damage to the impeller inside the double-suction pump, affecting the service life of the double-suction pump. It is necessary to filter and block the water inlet to filter the impurities. However, after long-term use, the filter residue is easy to block the filter screen or accumulate at the filter screen, which is difficult to remove, affecting the use of the double-suction pump. Utility Model Content

[0003] The utility model aims to solve the problems in the prior art and proposes a double-suction pump with a slag blocking structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A double-suction pump with a slag-blocking structure comprises a pump body and a water inlet pipe connected to the upper end of the pump body, the water inlet pipe is connected to a filter screen, and the upper end of the filter screen is connected to a slag discharge mechanism; the slag discharge mechanism comprises a turntable and is annular; a plurality of arc grooves are fixedly connected in the turntable; and the arc grooves are symmetrically arranged in the center of the turntable; a push rod is clamped on the inner wall of the arc groove; a push plate 1 is connected to the lower end of the push rod; the bottom end of the push plate 1 is in contact with the upper end of the filter screen; the side wall of the turntable is connected to a toothed disk meshing with the outer wall of the turntable; a slag collecting trough is also connected to the outside of the water inlet pipe; a cavity is provided inside the slag collecting trough; a window communicating with the cavity is provided on the water inlet pipe; and the lower end of the window is flush with the upper end of the filter screen.

[0006] Preferably, the side wall of the water inlet pipe is connected to a connecting frame which is in communication with the inside of the water inlet pipe; the toothed disc is arranged in the connecting frame; and the upper end of the toothed disc is connected to a rotating rod.

[0007] Preferably, a spring is connected to the outer side of the push plate 1; the other end of the spring is connected to the push plate 2 whose bottom end is attached to the filter; the thickness of the push plate 2 is less than the height of the window; and the length of the outer side surface of the push plate 2 is greater than the length of the outer side surface of the push plate 1.

[0008] Preferably, the upper end of the push rod is connected to a limiting block; and the push rod is hung on the arc groove through the limiting block.

[0009] Preferably, a discharge port is provided on the outer side of the slag collecting trough; and a blocking block is connected to the discharge port.

[0010] Compared with the prior art, the utility model provides a double-suction pump with a slag blocking structure, which has the following beneficial effects:

[0011] The double-suction pump with a slag-blocking structure is configured with a slag discharge mechanism on the filter screen in the water inlet pipe, and the turntable is driven to rotate by rotating the toothed disc, thereby pushing the push rod to move outward in the arc-shaped groove, and at the same time driving the push plate 1 at the lower end to push the filter residue outward at the upper end of the filter screen. The push plate 1 drives the larger push plate 2 to push the filter residue through a spring, so that the slag on the filter screen is completely discharged, and the filter residue is pushed into the cavity outside the filter screen, which is convenient for removing the filter residue on the filter screen. The turntable is annular and is only connected to a thin-walled arc-shaped groove on the inner side. The gap retained inside is relatively large, which does not affect the circulation of water in the water inlet pipe.

[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the slag discharge mechanism in the utility model.

[0016] In the figure: 10 pump body, 11 water inlet pipe, 12 filter screen, 13 window, 14 connecting frame, 20 slag discharge mechanism, 21 turntable, 22 arc groove, 23 push rod, 24 push plate 1, 25 gear plate, 26 limit block, 27 turn rod, 28 push plate 2, 29 spring, 31 slag collecting trough, 32 cavity, 33 discharge port. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1-3A double-suction pump with a slag-blocking structure comprises a pump body 10 and a water inlet pipe 11 connected to the upper end of the pump body 10, the water inlet pipe 11 is connected to a filter screen 12, and the upper end of the filter screen 12 is connected to a slag discharge mechanism 20; the slag discharge mechanism 20 comprises a rotating disk 21 and is annular; a plurality of arc grooves 22 are fixedly connected in the rotating disk 21; and the arc grooves 22 are symmetrically arranged in the center of the rotating disk 21; a push rod 23 is clamped on the inner wall of the arc groove 22; the upper end of the push rod 23 is connected to a limiting block 26; the push rod 2 The water inlet pipe 11 is hung on the arc groove 22 through a stopper 26; the lower end of the push rod 23 is connected to a push plate 24; the bottom end of the push plate 24 is in contact with the upper end of the filter screen 12; the side wall of the turntable 21 is connected to a toothed disc 25 meshing with the outer wall of the turntable 21; the side wall of the water inlet pipe 11 is connected to a connecting frame 14 communicating with the inside of the water inlet pipe 11; the toothed disc 25 is arranged in the connecting frame 14; the upper end of the toothed disc 25 is connected to a rotating rod 27; and a sealing and waterproof structure should be arranged between the connecting frame 14 and the water inlet pipe 11.

[0019] The outside of the water inlet pipe 11 is also connected to a slag collecting tank 31; a cavity 32 is provided inside the slag collecting tank 31; a window 13 communicating with the cavity 32 is provided on the water inlet pipe 11; and the lower end of the window 13 is flush with the upper end of the filter screen 12; a discharge port 33 is provided on the outside of the slag collecting tank 31; and a blocking block is connected to the discharge port 33, and a sealing and waterproof structure should be provided between the blocking block and the slag collecting tank 31.

[0020] When in use, the rotating disc 21 is driven to rotate by rotating the toothed disc 25, pushing the push rod 23 to move outward in the arc groove 22, and at the same time driving the push plate 1 24 at the lower end to push the filter residue outward at the upper end of the filter screen 12, and pushing the filter residue to the outside of the filter screen 12. The rotating disc 21 is annular and only has a thin-walled arc groove 22 connected to the inner side, and the gap left inside is relatively large, which does not affect the circulation of water.

[0021] A spring 29 is connected to the outer side of the push plate 1 24 ; the other end of the spring 29 is connected to a push plate 2 28 whose bottom end is attached to the filter 12 ; the thickness of the push plate 28 is less than the height of the window 13 ; and the length of the outer side surface of the push plate 28 is greater than the length of the outer side surface of the push plate 1 24 .

[0022] In order to prevent the push plate 1 24 from being too small and leaving a gap around the outside of the filter screen 12, the push plate 28 can be used to push the outside, and the thickness of the push plate 28 is less than the height of the window 13; the push plate 28 can be directly pushed into the cavity 32 of the slag collecting tank 31, increasing the pushing area to make the slag discharge complete.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-suction pump with a slag blocking structure, comprising a pump body (10) and a water inlet pipe (11) connected to the upper end of the pump body (10), wherein the water inlet pipe (11) is connected to a filter screen (12), characterized in that: The upper end of the filter screen (12) is connected to a slag discharge mechanism (20); the slag discharge mechanism (20) comprises a rotating disk (21) and is annular; a plurality of arc-shaped grooves (22) are fixedly connected in the rotating disk (21); and the arc-shaped grooves (22) are centrally symmetrically arranged in the rotating disk (21); a push rod (23) is clamped on the inner wall of the arc-shaped groove (22); a push plate (24) is connected to the lower end of the push rod (23); the push plate (24) is The bottom end is in contact with the upper end of the filter screen (12); the side wall of the turntable (21) is connected to a toothed disc (25) meshing with the outer wall of the turntable (21); the outer side of the water inlet pipe (11) is also connected to a slag collecting groove (31); a cavity (32) is provided inside the slag collecting groove (31); the water inlet pipe (11) is provided with a window (13) communicating with the cavity (32); and the lower end of the window (13) is flush with the upper end of the filter screen (12).

2. A double-suction pump with a slag blocking structure according to claim 1, characterized in that: The side wall of the water inlet pipe (11) is connected to a connecting frame (14) which communicates with the inside of the water inlet pipe (11); the toothed disc (25) is arranged in the connecting frame (14); and the upper end of the toothed disc (25) is connected to a rotating rod (27).

3. A double-suction pump with a slag blocking structure according to claim 1, characterized in that: The outer side of the push plate 1 (24) is connected to a spring (29); the other end of the spring (29) is connected to a push plate 2 (28) whose bottom end is attached to the filter screen (12); the thickness of the push plate 2 (28) is smaller than the height of the window (13); and the length of the outer side surface of the push plate 2 (28) is greater than the length of the outer side surface of the push plate 1 (24).

4. A double-suction pump with a slag blocking structure according to claim 1, characterized in that: The upper end of the push rod (23) is connected to a limiting block (26); the push rod (23) is hung on the arc groove (22) through the limiting block (26).

5. A double-suction pump with a slag blocking structure according to claim 1, characterized in that: A discharge port (33) is provided on the outer side of the slag collecting tank (31); and a blocking block is connected to the discharge port (33).

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