Water suction pump

Abstract

The utility model relates to a water suction pump, and relates to the technical field of pumps, the water suction pump comprises a motor, a shell, a rotating blade and a supporting pipe, the motor is installed on the shell, the rotating blade is rotatably arranged in the supporting shell, the rotating blade is connected with an output shaft of the motor, and a water outlet pipe is arranged on the side wall of the shell; a water inlet pipe is arranged on the lower side of the shell, the supporting pipe is connected with the water inlet pipe, a water inlet channel is formed in the supporting pipe, a water inlet communicated with the water inlet channel is formed in the end, away from the water inlet pipe, of the supporting pipe, the supporting pipe is provided with a blocking pipe in the water inlet channel, and a plurality of blocking strips are arranged on the peripheral side wall of the blocking pipe. The multiple blocking strips are evenly arranged in the circumferential direction of the axis of the blocking pipe at intervals, and a water inlet groove allowing water flow to enter is formed between every two adjacent blocking strips. The application can reduce the risk of blade damage.

Description

Technical Field

[0001] This application relates to the technical field of pumps, and in particular to a water pump. Background Art

[0002] A water pump is a machine that conveys liquids or increases the pressure of liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to convey liquids including water, oil, acid-base solutions, emulsions, suspension liquids, and liquid metals, etc. It can also convey liquid-gas mixtures and liquids containing suspended solids.

[0003] In the related art, a water pump generally includes a motor, a housing, and blades. The motor is installed on the housing. There is a water flow channel inside the housing. The blades are rotatably arranged in the water flow channel. The output shaft of the motor is connected to the blades. The side wall of the housing is provided with a water inlet and a water outlet connected to the water flow channel.

[0004] Regarding the above related art, the inventor believes that when the water pump works outdoors, it usually pumps water from the bottom of the water, so it is very easy for the water pump to suck in impurities such as sand and gravel. When the sand and gravel enter the water pump, it is very easy to cause damage to the blades. Utility Model Content

[0005] In order to reduce the risk of blade damage, this application provides a water pump.

[0006] The water pump provided by this application adopts the following technical solutions:

[0007] A water pump includes a motor, a housing, a rotating blade, and a support pipe. The motor is installed on the housing. The rotating blade is rotatably arranged in the support housing. The rotating blade is connected to the output shaft of the motor. The side wall of the housing is provided with a water outlet pipe. The lower side of the housing is provided with a water inlet pipe. The support pipe is connected to the water inlet pipe. The support pipe has a water inlet channel inside. One end of the support pipe away from the water inlet pipe is provided with a water inlet communicating with the water inlet channel. A blocking pipe is arranged in the water inlet channel of the support pipe. A plurality of blocking bars are arranged on the circumferential side wall of the blocking pipe. The plurality of blocking bars are evenly arranged circumferentially along the axis of the blocking pipe. An inlet groove for water flow to enter is formed between adjacent blocking bars.

[0008] Through the above technical solution, by arranging the blocking pipe to block part of the opening of the support pipe, and the blocking bars to block part of the opening of the support pipe, the size of the opening of the support pipe is reduced, the risk of sand and gravel and other impurities entering is reduced, and the risk of blade damage is reduced.

[0009] Optionally, the blocking bars are inclined.

[0010] Through the above technical solution, by obliquely arranging the baffle strip, the flow velocity of water is increased, thereby improving the pumping efficiency.

[0011] Optionally, a filter screen pipe is arranged in the water inlet channel of the support pipe.

[0012] Through the above technical solution, the filter screen pipe filters the flowing water, reducing the risk of impurities such as sand and gravel entering, and reducing the risk of blade damage.

[0013] Optionally, there is a water flow channel inside the housing. A connecting pipe is arranged in the water flow channel of the housing. One end of the connecting pipe is connected to the support pipe, and the other end of the connecting pipe is connected to the output shaft of the motor. The rotating blade is arranged on the side wall of the connecting pipe, and a water outlet hole for water to flow out is opened on the side wall of the connecting pipe.

[0014] Through the above technical solution, water flows from the water flow channel into the connecting pipe, and then flows from the water outlet hole into the water inlet channel. The water outlet hole can filter impurities such as sand and gravel, reducing the risk of blade damage.

[0015] Optionally, an embedding groove is opened on the lower side wall of the water flow channel of the housing. A bearing is embedded in the embedding groove. An abutting ring is coaxially arranged on the outer peripheral side of the connecting pipe, and the abutting ring abuts against the bearing.

[0016] Through the above technical solution, the bearing reduces the friction between the connecting pipe and the support pipe, making the rotation of the rotating blade more stable.

[0017] The beneficial effect of the present utility model is that by arranging a baffle pipe, a part of the opening of the support pipe is blocked, and the baffle strip blocks a part of the opening of the support pipe, reducing the size of the opening of the support pipe, reducing the risk of impurities such as sand and gravel entering, and reducing the risk of blade damage. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the water pump in this application.

[0019] Figure 2 It is a cross-sectional view of the water pump in this application.

[0020] Description of the reference numerals: 1. Motor; 2. Housing; 21. Outlet pipe; 22. Inlet pipe; 23. Water flow channel; 231. Connecting pipe; 2311. Water outlet hole; 2312. Abutting ring; 232. Embedding groove; 2321. Bearing; 3. Rotating blade; 4. Support pipe; 41. Water inlet channel; 411. Baffle pipe; 4111. Baffle strip; 42. Water inlet; 5. Filter screen pipe. Detailed Description of the Invention

[0021] The following is combined with the attached Figure 1-2A further detailed description of the present application will be given.

[0022] An embodiment of the present application discloses a water pump.

[0023] Referring to Figure 1 and Figure 2 As shown in [figures not provided], the water pump includes a motor 1, a housing 2, a rotating blade 3, and a support pipe 4. The motor 1 is installed on the housing 2. The rotating blade 3 is rotatably arranged in a support housing. The rotating blade 3 is connected to the output shaft of the motor 1. A water outlet pipe 21 is provided on the side wall of the housing 2, and a water inlet pipe 22 is provided on the lower side of the housing 2. The support pipe 4 is connected to the water inlet pipe 22. The support pipe 4 has a water inlet channel 41 inside. One end of the support pipe 4 away from the water inlet pipe 22 is provided with a water inlet 42 that communicates with the water inlet channel 41. A blocking pipe 411 is arranged in the water inlet channel 41 of the support pipe 4. A plurality of blocking strips 4111 are arranged on the circumferential side wall of the blocking pipe 411. The plurality of blocking strips 4111 are evenly arranged circumferentially along the axis of the blocking pipe 411. Water inlet grooves for water flow to enter are formed between adjacent blocking strips 4111.

[0024] By providing the blocking pipe 411 to block a part of the opening of the support pipe 4, and the blocking strips 4111 to block a part of the opening of the support pipe 4, the size of the opening of the support pipe 4 is reduced, the risk of impurities such as sand and gravel entering is reduced, and the risk of blade damage is reduced.

[0025] The blocking strips 4111 are inclined.

[0026] By arranging the blocking strips 4111 in an inclined manner, the flow velocity of the water is increased, thereby improving the pumping efficiency.

[0027] A filter screen pipe 5 is arranged in the water inlet channel 41 of the support pipe 4.

[0028] The filter screen pipe 5 filters the flowing water, reduces the risk of impurities such as sand and gravel entering, and reduces the risk of blade damage.

[0029] The housing 2 has a water flow channel 23 inside. A connecting pipe 231 is arranged in the water flow channel 23 of the housing 2. One end of the connecting pipe 231 is connected to the support pipe 4, and the other end of the connecting pipe 231 is connected to the output shaft of the motor 1. The rotating blade 3 is arranged on the side wall of the connecting pipe 231. Water outlet holes 2311 for water to flow out are provided on the side wall of the connecting pipe 231.

[0030] Water flows from the water flow channel 23 into the connecting pipe 231, and then flows from the water outlet holes 2311 into the water inlet channel 41. The water outlet holes 2311 can filter impurities such as sand and gravel, reducing the risk of blade damage.

[0031] The outer shell 2 is provided with an embedding groove 232 on the lower side wall of the flowing water channel 23. A bearing 2321 is embedded in the embedding groove 232. A butting ring 2312 is coaxially arranged on the outer peripheral side of the connecting pipe 231, and the butting ring 2312 abuts against the bearing 2321.

[0032] The bearing 2321 reduces the friction force between the connecting pipe 231 and the support pipe 4, making the rotation of the rotating blade 3 more stable.

[0033] The implementation principle of a water pump in an embodiment of the present application is as follows: By arranging the blocking pipe 411, a part of the opening of the support pipe 4 is blocked, and the blocking strip 4111 blocks a part of the opening of the support pipe 4, reducing the size of the opening of the support pipe 4, reducing the risk of impurities such as gravel and stones entering, and reducing the risk of blade damage.

[0034] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A water pump, characterized in that: It includes a motor (1), a housing (2), a rotating blade (3) and a support pipe (4). The motor (1) is installed on the housing (2). The rotating blade (3) is rotatably arranged in the housing (2). The rotating blade (3) is connected to the output shaft of the motor (1). A water outlet pipe (21) is arranged on the side wall of the housing (2). A water inlet pipe (22) is arranged on the lower side of the housing (2). The support pipe (4) is connected to the water inlet pipe (22). An inlet channel (41) is provided inside the support pipe (4). An inlet port (42) communicating with the inlet channel (41) is opened at one end of the support pipe (4) away from the water inlet pipe (22). A blocking pipe (411) is arranged in the support pipe (4) within the inlet channel (41). A plurality of blocking bars (4111) are arranged on the circumferential side wall of the blocking pipe (411). The plurality of blocking bars (4111) are evenly arranged circumferentially along the axis of the blocking pipe (411). Water inlet grooves for water flow to enter are formed between adjacent blocking bars (4111).

2. The submersible pump according to claim 1, wherein: The blocking bar (4111) is inclined.

3. The submersible pump according to claim 1, wherein: A filter screen pipe (5) is arranged in the support pipe (4) within the inlet channel (41).

4. The water pump according to claim 1, characterized in that: A water flow channel (23) is provided inside the housing (2). A connecting pipe (231) is arranged in the housing (2) within the water flow channel (23). One end of the connecting pipe (231) is connected to the support pipe (4), and the other end of the connecting pipe (231) is connected to the output shaft of the motor (1). The rotating blade (3) is arranged on the side wall of the connecting pipe (231). Water outlet holes (2311) for water to flow out are opened on the side wall of the connecting pipe (231).

5. A water pump according to claim 4, characterized in that: An embedding groove (232) is opened on the lower side wall of the housing (2) within the water flow channel (23). A bearing (2321) is embedded in the embedding groove (232). An abutting ring (2312) is coaxially arranged on the outer peripheral side of the connecting pipe (231). The abutting ring (2312) abuts against the bearing (2321).

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