Amphibious submersible sewage pump

Abstract

The amphibious submersible sewage pump comprises a pump shell, a motor, an impeller, a water inlet pipe and a water outlet pipe, a pump cavity is formed in the pump shell, the impeller is rotationally connected in the pump cavity, the motor is fixed in the pump shell and drives the impeller to rotate, the water inlet pipe and the water outlet pipe are both fixed on the pump shell and both communicated with the pump cavity, and the water inlet pipe and the water outlet pipe are communicated with the pump cavity. The impeller rotates and sucks water into the pump cavity from the water inlet pipe and then guides the water out of the water outlet pipe, a heat dissipation sleeve is connected to the outer wall of the pump shell, a containing cavity is formed between the heat dissipation sleeve and the pump shell, a vertical hole and a transverse hole are formed in the pump shell, the lower end of the vertical hole is communicated with the water outlet pipe, the upper end of the vertical hole is communicated with the transverse hole, and the lower end of the vertical hole is communicated with the water outlet pipe. The transverse hole is formed in the pump shell, the end, away from the vertical hole, of the transverse hole is communicated with the containing cavity, the heat dissipation sleeve is provided with an air outlet hole, the air outlet hole is connected with a sealing plug, and the purpose of improving the heat dissipation performance of the motor is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a submersible sewage pump, in particular to a water and land dual-purpose submersible sewage pump. BACKGROUND

[0002] At present, the Chinese patent with the authorization announcement number CN201818534U discloses a submersible sewage pump, which comprises a pump body, an impeller and a pump cover, the convex ring of the impeller extends into the pump cover, and the convex ring and the pump cover are characterized in that a floating sleeve is further arranged between the convex ring and the pump cover, a pressing block is arranged on the pump cover, the pressing block is provided with an elastic element which abuts against the lower end surface of the floating sleeve, and the upper end surface of the floating sleeve abuts against the impeller cover of the impeller.

[0003] The submersible sewage pump solves the problem of being easily blocked by sundries and can cut and shred the sundries, so that the normal operation of the submersible sewage pump is realized and the submersible sewage pump is suitable for the drainage of various sewage and sundry-containing wastewater.

[0004] In summer in China, the submersible sewage pump is usually used for flood control and drainage. In order to make the submersible sewage pump have good heat dissipation, the whole submersible sewage pump must be immersed in water, but as the water level drops, the submersible sewage pump will be exposed to the air, and the heat generated by the motor cannot be dissipated in time, which is easy to cause the problem of overheating and low efficiency of the motor. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a water and land dual-purpose submersible sewage pump, improving the heat dissipation of the motor and achieving the purpose of preventing the motor from overheating.

[0006] In order to solve the above technical problems, the technical scheme of the utility model is as follows: a water and land dual-purpose submersible sewage pump, which comprises a pump shell, a motor, an impeller, an inlet pipe and an outlet pipe, a pump cavity is formed in the pump shell, the impeller is rotatably connected in the pump cavity, the motor is fixed in the pump shell and drives the impeller to rotate, the inlet pipe and the outlet pipe are both fixed on the pump shell and communicate with the pump cavity, the impeller rotates and sucks water from the inlet pipe into the pump cavity and then discharges the water from the outlet pipe, a heat dissipation sleeve is connected to the outer wall of the pump shell, a containing cavity is formed between the heat dissipation sleeve and the pump shell, vertical holes and horizontal holes are formed in the pump shell, the lower end of the vertical hole communicates with the outlet pipe, the upper end of the vertical hole communicates with the horizontal hole, the horizontal hole is formed in the pump shell, the end of the horizontal hole away from the vertical hole communicates with the containing cavity, gas outlet holes are formed in the heat dissipation sleeve, and sealing plugs are connected to the gas outlet holes.

[0007] The motor is started, the impeller rotates slowly, water enters into the pump shell from the water inlet pipe, and then the water is pumped out from the water outlet pipe, a part of the water enters into the horizontal hole from the vertical hole, and then enters into the containing cavity from the horizontal hole, so that the water cooling effect of the motor is realized, the air in the containing cavity is guided out from the air outlet hole, then the air outlet hole is blocked by the sealing plug, then the power of the motor is increased, and the impeller rotates at high speed, so that the water pumping process is realized.

[0008] As a preferred scheme of the utility model, the heat dissipation sleeve is rotationally connected to the outer wall of the pump shell, and the inner wall of the heat dissipation sleeve is fixedly connected with a sealing plate for blocking the horizontal hole.

[0009] The above technical scheme is realized, when pumping hot water, the heat dissipation sleeve is rotated to block the horizontal hole with the sealing plate, and the sealing plug is removed from the air outlet hole, and cold water is injected into the containing cavity from the air outlet hole to cool the motor, the positioning assembly is arranged, so that the sealing plate is not easily removed from the horizontal hole, after pumping hot water, the heat dissipation sleeve is rotated to remove the sealing plate from the horizontal hole, and the cold water in the containing cavity is guided out from the water outlet pipe through the horizontal hole and the vertical hole, and when pumping cold water, the sealing plate is removed from the horizontal hole, and the heat dissipation sleeve is positioned by the positioning assembly, so that the sealing plate is not easily blocked from the horizontal hole.

[0010] As a preferred scheme of the utility model, the positioning assembly comprises a fixed ring, a positioning ring, a threaded ring, a positioning recess, a spring piece and a mounting groove, the fixed ring is fixed to the outer wall of the pump shell and is coaxially arranged with the pump shell, the positioning ring is fixed to the inner wall of the heat dissipation sleeve and is coaxially arranged with the heat dissipation sleeve, the threaded ring is threadedly connected to the outer wall of the pump shell, the fixed ring and the threaded ring form a guide groove for positioning rotation of the positioning ring, the mounting groove is formed in the positioning ring, the positioning recess is formed in one side of the fixed ring facing the mounting groove, and the spring piece is arranged in an arc shape and is fixed to the inner wall of the mounting groove at both ends, and the middle part of the spring piece is protruded and used for being embedded in the positioning recess.

[0011] The above technical scheme is realized, the heat dissipation sleeve is held, a rotating force is applied to the heat dissipation sleeve, when the spring piece corresponds to the positioning recess, the middle part of the spring piece is embedded in the positioning recess, and the friction force generated realizes positioning of the heat dissipation sleeve, and the operation is simple and convenient.

[0012] As a preferred scheme of the utility model, the outer wall of the pump shell is fixedly connected with a first baffle and a second baffle, the horizontal hole is located between the first baffle and the second baffle, the sealing plate blocks the horizontal hole when the sealing plate abuts against the first baffle, and the sealing plate is separated from the horizontal hole when the sealing plate abuts against the second baffle.

[0013] The technical scheme is implemented to limit the displacement position of the sealing plate.

[0014] As a preferred scheme of the utility model, a plurality of heat dissipation grooves are formed on the outer wall of the pump shell and are distributed along the axial direction of the heat dissipation jacket.

[0015] The technical scheme is implemented to further improve the cooling effect of the pump shell and make the motor less likely to overheat.

[0016] As a preferred scheme of the utility model, a first sealing ring is fixedly connected to the inner wall of the positioning ring and abuts against the outer wall of the pump shell, a first ring groove is formed on the side of the fixing ring facing the positioning ring, a second ring groove corresponding to the first ring groove is formed on the side of the positioning ring facing the fixing ring, and a second sealing ring is fixedly connected between the first ring groove and the second ring groove.

[0017] The technical scheme is implemented to improve the sealing property by the first sealing ring and the second sealing ring, so that water is less likely to leak out from between the heat dissipation jacket and the pump shell.

[0018] As a preferred scheme of the utility model, a third ring groove is formed on the side of the threaded ring facing the positioning ring, a fourth ring groove corresponding to the third ring groove is formed on the side of the positioning ring facing the threaded ring, and a third sealing ring is fixedly connected between the third ring groove and the fourth ring groove.

[0019] The technical scheme is implemented to further improve the sealing property by the third sealing ring, so that water is less likely to leak out from between the heat dissipation jacket and the pump shell.

[0020] As a preferred scheme of the utility model, a gripping ring is fixedly connected to the outer wall of the heat dissipation jacket, and the gripping ring is coaxially arranged with the heat dissipation jacket.

[0021] The technical scheme is implemented to facilitate rotation of the heat dissipation jacket. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an external structure schematic view in the embodiment;

[0023] Figure 2 It is a cross-sectional view of the heat dissipation jacket;

[0024] Figure 3 It is Figure 2 the enlarged view of A;

[0025] Figure 4 It is a position schematic view of the air hole;

[0026] Figure 5 It is a position schematic view of the first baffle and the second baffle.

[0027] Fig. 1 is a pump shell; 10 is a heat dissipation groove; 11 is a motor; 12 is an inlet pipe; 13 is an outlet pipe; 2 is a heat sink; 21 is a containing cavity; 22 is a holding ring; 3 is a positioning assembly; 31 is a fixed ring; 32 is a positioning ring; 33 is a threaded ring; 34 is a positioning recess; 35 is an elastic sheet; 36 is a mounting groove; 4 is a first sealing ring; 51 is a first ring groove; 52 is a second ring groove; 53 is a second sealing ring; 61 is a third ring groove; 62 is a fourth ring groove; 63 is a third sealing ring; 71 is a vertical hole; 72 is a horizontal hole; 73 is a filter screen; 8 is a sealing plate; 91 is a first baffle; 92 is a second baffle; 100 is an air outlet; 101 is a sealing plug. DETAILED DESCRIPTION

[0028] The specific embodiments of the utility model are further described in detail below in combination with the drawings, so that the technical scheme of the utility model is easier to understand and master.

[0029] A amphibious sewage pump, including pump shell 1, motor 11, impeller, inlet pipe 12 and outlet pipe 13, pump cavity is set up in the lower end of pump shell 1, impeller is rotatably connected in pump cavity, motor 11 is fixed in pump shell 1 and drives impeller rotation, motor 11 is located above impeller.

[0030] Inlet pipe 12 and outlet pipe 13 are fixed on pump shell 1 and are communicated with pump cavity, impeller rotates and absorbs water from inlet pipe 12 into pump cavity and then guides water from outlet pipe 13, which is prior art, and the present embodiment will not be described in detail.

[0031] Rotatably connected with heat sink 2 on the outer wall of pump shell 1, and the containing cavity 21 is formed between heat sink 2 and pump shell 1, heat sink 2 is rotatably connected to the outer wall of pump shell 1, and positioning assembly 3 is arranged between heat sink 2 and the outer wall of pump shell 1.

[0032] Positioning assembly 3 includes fixed ring 31, positioning ring 32, threaded ring 33, positioning recess 34, elastic sheet 35 and mounting groove 36. Fixed ring 31 is fixed on the outer wall of pump shell 1 and is coaxially arranged with pump shell 1, positioning ring 32 is fixed on the inner wall of heat sink 2 and is coaxially arranged with heat sink 2. Threaded ring 33 is threadedly connected to the outer wall of pump shell 1, and a guide groove for positioning ring 32 rotation is formed between fixed ring 31 and threaded ring 33.

[0033] Mounting groove 36 is provided on positioning ring 32, positioning recess 34 is provided on the side of fixed ring 31 facing mounting groove 36, elastic sheet 35 is arc-shaped and both ends are fixed on the inner wall of mounting groove 36, the middle part of elastic sheet 35 is protruded and used for embedding in positioning recess 34. Elastic sheet 35 is made of copper.

[0034] Each positioning recess 34 of positioning assembly 3 has two.

[0035] In order to improve the sealing, the inner wall of the positioning ring 32 is fixedly connected with the first sealing ring 4 which is in contact with the outer wall of the pump shell 1. The side of the fixed ring 31 facing the positioning ring 32 is provided with a first ring groove 51, and the side of the positioning ring 32 facing the fixed ring 31 is provided with a second ring groove 52 corresponding to the first ring groove 51. The first ring groove 51 and the second ring groove 52 are fixedly connected with the second sealing ring 53.

[0036] The side of the threaded ring 33 facing the positioning ring 32 is provided with a third ring groove 61, and the side of the positioning ring 32 facing the threaded ring 33 is provided with a fourth ring groove 62 corresponding to the third ring groove 61. The third ring groove 61 and the fourth ring groove 62 are fixedly connected with the third sealing ring 63.

[0037] The first sealing ring 4, the second sealing ring 53 and the third sealing ring 63 are all rubber sealing rings.

[0038] The vertical hole 71 and the horizontal hole 72 are provided on the pump shell 1. The lower end of the vertical hole 71 is in communication with the water outlet pipe 13, the upper end of the vertical hole 71 is in communication with the horizontal hole 72, and the vertical hole 71 is vertically arranged. The horizontal hole 72 is provided on the pump shell 1 and is horizontally arranged. The end of the horizontal hole 72 away from the vertical hole 71 is in communication with the accommodating cavity 21. The heat sink 2 is provided with an air outlet hole 100, and the air outlet hole 100 is connected with a sealing plug 101 made of rubber. The end of the vertical hole 71 close to the water outlet pipe 13 is provided with a filter screen 73.

[0039] The inner wall of the heat sink 2 is fixedly connected with a sealing plate 8 for sealing the horizontal hole 72.

[0040] The heat sink 2 is rotated forwardly so that the elastic sheet 35 is embedded into one positioning recess 34, at this time, the sealing plate 8 corresponds to the horizontal hole 72; the heat sink 2 is rotated reversely so that the elastic sheet 35 is embedded into another positioning recess 34, at this time, the sealing plate 8 is separated from the horizontal hole 72.

[0041] The outer wall of the heat sink 2 is integrally connected with a holding ring 22, and the holding ring 22 is coaxially arranged with the heat sink 2.

[0042] The outer wall of the pump shell 1 is fixedly connected with a first baffle 91 and a second baffle 92, and the first baffle 91 and the second baffle 92 are both arranged along the vertical direction of the pump shell 1. The horizontal hole 72 is located between the first baffle 91 and the second baffle 92, the sealing plate 8 seals the horizontal hole 72 when the sealing plate 8 is in contact with the first baffle 91, and the elastic sheet 35 is embedded into the positioning recess 34. The sealing plate 8 is separated from the horizontal hole 72 when the sealing plate 8 is in contact with the second baffle 92, and the elastic sheet 35 is embedded into another positioning recess 34.

[0043] The outer wall of the pump shell 1 is provided with a plurality of heat dissipation grooves 10, and the plurality of heat dissipation grooves 10 are distributed along the axial direction of the heat sink 2. The heat dissipation groove 10 is annular.

[0044] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. An amphibious sewage pump, comprising a pump shell (1), a motor (11), an impeller, an inlet pipe (12) and an outlet pipe (13), a pump cavity is formed in the pump shell (1), the impeller is rotatably connected in the pump cavity, the motor (11) is fixed in the pump shell (1) and drives the impeller to rotate, the inlet pipe (12) and the outlet pipe (13) are both fixed on the pump shell (1) and both communicate with the pump cavity, the impeller rotates and sucks water from the inlet pipe (12) into the pump cavity and then leads the water out from the outlet pipe (13), characterized in that: The outer wall of the pump shell (1) is connected with a heat dissipation sleeve (2), the heat dissipation sleeve (2) and the pump shell (1) form a containing cavity (21), the pump shell (1) is provided with a vertical hole (71) and a horizontal hole (72), the lower end of the vertical hole (71) is communicated with the water outlet pipe (13), the upper end of the vertical hole (71) is communicated with the horizontal hole (72), the horizontal hole (72) is arranged on the pump shell (1), the end of the horizontal hole (72) away from the vertical hole (71) is communicated with the containing cavity (21), the heat dissipation sleeve (2) is provided with an air outlet hole (100), and the air outlet hole (100) is connected with a sealing plug (101). ​ 2. The amphibious submersible sewage pump according to claim 1, characterized in that: The heat dissipation sleeve (2) is rotationally connected to the outer wall of the pump shell (1), the inner wall of the heat dissipation sleeve (2) is fixedly connected with a sealing plate (8) for sealing the horizontal hole (72), and the outer wall of the heat dissipation sleeve (2) and the pump shell (1) are provided with a positioning assembly (3).

3. The amphibious submersible sewage pump according to claim 2, characterized in that: The positioning assembly (3) comprises a fixed ring (31), a positioning ring (32), a threaded ring (33), a positioning recess (34), a spring piece (35) and a mounting groove (36), the fixed ring (31) is fixed to the outer wall of the pump shell (1) and is coaxially arranged with the pump shell (1), the positioning ring (32) is fixed to the inner wall of the heat dissipation sleeve (2) and is coaxially arranged with the heat dissipation sleeve (2), the threaded ring (33) is threadedly connected to the outer wall of the pump shell (1), the fixed ring (31) and the threaded ring (33) form a guide groove for the rotation of the positioning ring (32), the mounting groove (36) is arranged on the positioning ring (32), the positioning recess (34) is arranged on one side of the fixed ring (31) facing the mounting groove (36), and the spring piece (35) is arranged in an arc shape and has two ends fixed to the inner wall of the mounting groove (36), and the middle part of the spring piece (35) is protruded and used for being embedded in the positioning recess (34).

4. The amphibious submersible sewage pump according to claim 3, characterized in that: The outer wall of the pump shell (1) is fixedly connected with a first baffle (91) and a second baffle (92), the horizontal hole (72) is located between the first baffle (91) and the second baffle (92), when the sealing plate (8) abuts against the first baffle (91), the sealing plate (8) seals the horizontal hole (72), and when the sealing plate (8) abuts against the second baffle (92), the sealing plate (8) is separated from the horizontal hole (72).

5. The amphibious submersible sewage pump according to claim 3, characterized in that: A plurality of heat dissipation grooves (10) are arranged on the outer wall of the pump shell (1) and are distributed along the axial direction of the heat dissipation sleeve (2).

6. The amphibious submersible sewage pump according to claim 3, characterized in that: The inner wall of the positioning ring (32) is fixedly connected with a first sealing ring (4) abutting against the outer wall of the pump shell (1), one side of the fixed ring (31) facing the positioning ring (32) is provided with a first ring groove (51), one side of the positioning ring (32) facing the fixed ring (31) is provided with a second ring groove (52) corresponding to the first ring groove (51), and the first ring groove (51) and the second ring groove (52) are fixedly connected with a second sealing ring (53).

7. The amphibious submersible sewage pump according to claim 6, characterized in that: The third ring groove (61) is arranged on one side of the threaded ring (33) facing the positioning ring (32), the fourth ring groove (62) corresponding to the third ring groove (61) is arranged on one side of the positioning ring (32) facing the threaded ring (33), and the third sealing ring (63) is fixedly connected between the third ring groove (61) and the fourth ring groove (62).

8. The amphibious submersible sewage pump according to claim 3, characterized in that: The outer wall of the heat dissipation sleeve (2) is fixedly connected with a holding ring (22), and the holding ring (22) is coaxially arranged with the heat dissipation sleeve (2).

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