Anti-blocking long-shaft submerged pump

Abstract

The application discloses a kind of anti-blocking long shaft submersible pump, belong to submersible pump technical field, comprising: pump shell, the inside of the pump shell is provided with impeller, the center of the impeller is provided with rotating shaft, the rotating shaft is located in the lower end of impeller and is provided with first bevel gear;Shell is set in the lower end of pump shell, the present application is filtered by being provided with filter screen, for filtering the impurity in water, prevent the impurity in sewage from entering pump body, avoid the occurrence of blockage, by rotating shaft, first bevel gear, second bevel gear, cylindrical cam, movable rod, curve groove, limit plate, the cooperation of limit slot, movable rod can only carry out horizontal left and right reciprocating motion, movable rod moves to left, drive movable plate and top rod to move to left, to carry out to filter screen unplug, on the one hand, so that filter screen always guarantees its high efficiency filtration, on the other hand, so that filter screen will not be blocked by impurity with long running time, avoid the damage caused by motor vacuum pumping.

Description

Technical Field

[0001] The invention belongs to the technical field of submersible pumps, and in particular relates to an anti-blocking long-axis submersible pump. Background Art

[0002] A submersible pump is a pump body that is set below the liquid level and the motor is set above the liquid level. Under the action of the motor, the pump body uses centrifugal force to lift, transport and discharge the medium. Submersible pumps are generally used in tanks and pools. Due to this special working method, in order to ensure the good efficiency of the pump and prevent impurities and other solid particles in the medium from entering the pump and affecting other components of the pump, a filter is generally installed at the pump inlet. However, since this filter is stationary, its tiny filter holes will gradually become clogged as the working time increases, thereby continuously reducing the efficiency of the pump. When most of the filter holes are clogged, the pump will experience vacuum, which can easily damage the motor. At this time, it is necessary to remove the pump from the pool and remove the impurities on the filter, but this process is time-consuming and labor-intensive. Summary of the Invention

[0003] The present invention provides an anti-blocking long-axis submersible pump to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-blocking long-axis submersible pump, comprising:

[0005] A pump casing, wherein an impeller is disposed inside the pump casing, a rotating shaft is disposed at the center of the impeller, and a first bevel gear is disposed at the lower end of the rotating shaft located at the impeller;

[0006] The shell is arranged at the lower end of the pump shell and has a notch on one side, the shell is connected to the pump shell, a filter screen is arranged inside the notch, a support plate is provided at the bottom of the shell, a cylindrical cam is provided inside the pump shell, one end shaft of the cylindrical cam is connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, the other end shaft of the cylindrical cam is rotatably connected to the fixed plate, the fixed plate is fixed to the support plate, a curved groove is provided on the cylindrical cam, one end of a movable rod is provided in the curved groove, one end of the movable rod is provided with a cross bar, a limiting plate is provided on the outside of the movable rod, a limiting slot is provided on the limiting plate, the movable rod is located in the limiting slot, the cross bar passes through one end of the fixed plate and is connected to the movable plate, and multiple groups of push rods are provided on the movable plate, and the push rods correspond to the mesh holes of the filter screen.

[0007] Furthermore, the top rod is a hollow rod and passes through and is fixedly connected to the movable plate.

[0008] Further, one side of the pump shell is communicated with a liquid outlet pipe, an installation plate is arranged outside the upper portion of the liquid outlet pipe, a fixed frame is arranged at the upper end of the installation plate, a motor is arranged on the fixed frame, and the output end of the motor is connected with the rotating shaft.

[0009] Further, the upper end of the pump shell is provided with a shaft shell, and the shaft shell is arranged outside the rotating shaft.

[0010] Further, a fixed ring plate is arranged in the shaft shell, the fixed ring plate is arranged outside the rotating shaft, a bearing is arranged at the upper end of the fixed ring plate, the bearing is arranged outside the rotating shaft and is rotationally connected with the rotating shaft, and a limiting sleeve is arranged at the lower end of the fixed ring plate and is sleeved outside the bearing.

[0011] Further, a shaft coupling is connected between the output end of the motor and the rotating shaft.

[0012] Compared with the prior art, the pump has the following beneficial effects:

[0013] The filter screen is arranged to filter impurities in water, prevent impurities in sewage from entering the pump body, and avoid blockage. The cooperation of the rotating shaft, the first bevel gear, the second bevel gear, the cylindrical cam, the movable rod, the curved groove, the limiting plate and the limiting groove enables the movable rod to only move horizontally and reciprocally. When the movable rod moves to the left, the movable plate and the top rod are driven to move to the left, so that the filter screen is unblocked. On the one hand, the filter screen always ensures high-efficiency filtration, and on the other hand, the filter screen will not be blocked by impurities after a long running time, avoiding the damage caused by the motor vacuuming. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the long-shaft submerged pump of the application.

[0015] Fig. 2 It is a sectional view of the application.

[0016] Fig. 3 It is a schematic view of the internal structure of the shell.

[0017] In the figure: 1, support plate; 2, pump shell; 3, liquid outlet pipe; 4, installation plate; 5, motor; 6, fixed frame; 7, rotating shaft; 8, shaft shell; 9, shell; 10, impeller; 11, cross rod; 12, first bevel gear; 13, filter screen; 14, slot; 15, top rod; 16, movable plate; 17, fixed plate; 18, cylindrical cam; 19, curved groove; 20, second bevel gear; 21, limiting plate; 22, movable rod; 23, limiting groove. DETAILED DESCRIPTION

[0018] Clearly, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] Please refer to Figs. 1-3 The present application provides the following technical solutions:

[0020] Embodiment 1

[0021] A kind of anti-blocking long shaft submersible pump, comprising:

[0022] Pump shell 2, the inside of pump shell 2 is provided with impeller 10, the center of impeller 10 is provided with rotating shaft 7, rotating shaft 7 is located at the lower end of impeller 10 and is provided with first bevel gear 12;

[0023] Housing 9, be provided at the lower end of pump shell 2, and one side is provided with slot 14, housing 9 is communicated with pump shell 2, filter screen 13 is provided in slot 14, the bottom of housing 9 is provided with support plate 1, the inside of pump shell 2 is provided with cylindrical cam 18, one end shaft of cylindrical cam 18 is connected with second bevel gear 20, second bevel gear 20 is engagedly connected with first bevel gear 12, the other end shaft of cylindrical cam 18 is rotatably connected with fixed plate 17, fixed plate 17 is fixed on support plate 1, curve groove 19 is provided on cylindrical cam 18, one end of movable rod 22 is provided in curve groove 19, horizontal rod 11 is provided at one end of movable rod 22, limit plate 21 is provided on the outside of movable rod 22, limit groove 23 is formed in limit plate 21, movable rod 22 is located in limit groove 23, one end of horizontal rod 11 is connected with movable plate 16, which penetrates fixed plate 17, a plurality of top rods 15 are provided on movable plate 16, top rod 15 corresponds with filter screen 13 mesh, in order to make top rod 15 clean filter screen 13, pump body works normally, top rod 15 is hollow rod, and penetrates fixedly connected on movable plate 16;

[0024] One side of pump shell 2 is communicated with liquid outlet pipe 3, the upper part of liquid outlet pipe 3 is provided with mounting plate 4 outside, fixed frame 6 is provided at the upper end of mounting plate 4, motor 5 is provided on fixed frame 6, the output end of motor 5 is connected with rotating shaft 7, in order to facilitate the connection and fixation of motor 5 with rotating shaft 7, coupling is connected between the output end of motor 5 and rotating shaft 7.

[0025] Specifically, by setting the filter screen 13 for filtering impurities in water, preventing impurities in sewage from entering the pump body, avoiding blockage, the motor 5 drives the rotating shaft 7 to rotate, thereby driving the impeller 10 to rotate, thereby pumping water into the shell 2, the pump shell 2, and the liquid outlet pipe 3, while the rotating shaft 7 rotates to drive the first bevel gear 12 to rotate, thereby driving the second bevel gear 20 to rotate, thereby driving the cylindrical cam 18 to rotate, so that the movable rod 22 moves in the curved groove 19 of the cylindrical cam 18. The movable rod 22 can only move horizontally left and right due to the limiting of the limiting groove 23 on the limiting plate 21, and the movable rod 22 moves to the left, driving the movable plate 16 and the top rod 15 to move to the left, thereby removing the filter screen 13. On the one hand, the filter screen 13 always ensures its high efficiency, and on the other hand, the filter screen 13 will not be blocked by impurities as the running time is long, avoiding the damage caused by the motor vacuum.

[0026] Embodiment 2

[0027] As an optional case, a long shaft submerged pump with anti-blocking function, the upper end of the pump shell 2 is provided with a shaft shell 8, the shaft shell 8 is arranged outside the rotating shaft 7, a fixed ring plate is arranged in the shaft shell 8, the fixed ring plate is arranged outside the rotating shaft 7, the upper end of the fixed ring plate is provided with a bearing, the bearing is arranged outside the rotating shaft 7 and is in rotating connection with the rotating shaft 7, and the lower end of the fixed ring plate is provided with a limiting sleeve, the limiting sleeve is sleeved outside the bearing.

[0028] Specifically, the rotating shaft 7 is protected by the shaft shell 8, and support force is provided at the same time, the rotating shaft 7 has a support force in the middle through the cooperation of the limiting sleeve and the bearing, preventing the rotating shaft 7 from being too long, causing excessive torsion, and causing problems such as easy deformation and short service life.

[0029] The scheme in this embodiment can be selectively combined with the schemes in other embodiments.

[0030] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A long-axis anti-blocking submersible pump, characterized in that: include: A pump housing (2), wherein an impeller (10) is provided inside the pump housing (2), a rotating shaft (7) is provided at the center of the impeller (10), and a first bevel gear (12) is provided at the lower end of the rotating shaft (7) located at the impeller (10); A housing (9) is provided at the lower end of the pump housing (2) and is provided with a notch (14) on one side. The housing (9) is connected to the pump housing (2). A filter screen (13) is provided inside the notch (14). A support plate (1) is provided at the bottom of the housing (9). A cylindrical cam (18) is provided inside the pump housing (2). One end of the cylindrical cam (18) is connected to a second bevel gear (20). The second bevel gear (20) is meshed with the first bevel gear (12). The other end of the cylindrical cam (18) is rotatably connected to a fixing plate (17). The fixing plate (17) is fixed to the support plate (1). The cylindrical cam (18) is provided with a curved groove (19), one end of a movable rod (22) is provided in the curved groove (19), one end of the movable rod (22) is provided with a cross bar (11), a limiting plate (21) is provided outside the movable rod (22), a limiting groove (23) is provided on the limiting plate (21), the movable rod (22) is located in the limiting groove (23), one end of the cross bar (11) passes through the fixed plate (17) and is connected to the movable plate (16), the movable plate (16) is provided with multiple groups of push rods (15), and the push rods (15) correspond to the mesh of the filter screen (13).

2. The anti-blocking long-axis submersible pump according to claim 1, characterized in that: The top rod (15) is a hollow rod and passes through and is fixedly connected to the movable plate (16).

3. The anti-blocking long-axis submersible pump according to claim 1, characterized in that: One side of the pump housing (2) is connected to a liquid outlet pipe (3), an upper portion of the liquid outlet pipe (3) is provided with a mounting plate (4), an upper end of the mounting plate (4) is provided with a fixing frame (6), an electric motor (5) is provided on the fixing frame (6), and an output end of the electric motor (5) is connected to a rotating shaft (7).

4. The anti-blocking long-axis submersible pump according to claim 1, characterized in that: A shaft housing (8) is provided at the upper end of the pump housing (2), and the shaft housing (8) is provided outside the rotating shaft (7).

5. The anti-blocking long-axis submersible pump according to claim 4, characterized in that: A fixed ring plate is provided in the shaft housing (8), and the fixed ring plate is provided outside the rotating shaft (7). A bearing is provided at the upper end of the fixed ring plate, and the bearing is provided outside the rotating shaft (7) and is rotatably connected to the rotating shaft (7). A limiting sleeve is provided at the lower end of the fixed ring plate, and the limiting sleeve is provided outside the bearing.

6. The anti-blocking long-axis submersible pump according to claim 3, characterized in that: A coupling is connected between the output end of the motor (5) and the rotating shaft (7).

Images