Automatic water replenishing device for drainage self-priming pump

Abstract

The utility model relates to the technical field of self-priming pumps, and discloses an automatic water replenishing device for a drainage self-priming pump, which comprises a motor, a pump body is arranged on the right side of the motor, a water outlet and a water inlet are arranged at the top of the pump body, a water tank is arranged at the top of the water inlet, and a circulating pipe is arranged at the top of the water tank. The circulating pipe is communicated with an inner cavity of the pump body, the water tank is connected with the water outlet and the water inlet through a water inlet pipe and a water outlet pipe respectively, and an installation sleeve is installed on the inner wall of the water outlet. Water is injected into the water tank through operation of the pump body, after the water level in the pump body drops, the pressure of the water in the water tank presses the hollow long rod and the air bag downwards at the moment, the hollow long rod does not seal the fixed sleeve, the water in the water tank flows into the pump body through the fixed sleeve, and the water level in the pump body rises; therefore, the problem that the working efficiency is low due to the fact that water is manually added into a pump body of an existing self-priming pump is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-priming pumps, in particular to an automatic water replenishing device for a drainage self-priming pump. Background Art

[0002] The self-priming pump is a self-priming centrifugal pump with the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability.

[0003] After a self-priming pump stops being used, the water level in the pump body will drop. At this time, water needs to be injected into the pump body. The pump body contains enough water to make the impeller rotate at high speed to flow the water in the impeller groove to the volute. The existing method is to add water into the pump body manually, which leads to low working efficiency. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides an automatic water replenishing device for a drainage self-priming pump, which has the advantages of automatic water replenishment inside the pump body and a foldable water tank to reduce the overall height of the water pump, solving the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an automatic water replenishing device for a drainage self-priming pump, comprising a motor, a pump body installed on the right side of the motor, a water outlet and a water inlet provided on the top of the pump body, a water tank provided on the top of the water inlet, a circulation pipe provided on the top of the water tank, the circulation pipe is communicated with the inner cavity of the pump body, the water tank is connected to the water outlet and the water inlet respectively through the water inlet pipe and the water outlet pipe, a mounting sleeve is installed on the inner wall of the water outlet, a through groove is provided on the top of the mounting sleeve, a sealing plug is movably connected to the inner wall of the mounting sleeve, a fixing sleeve is fixedly assembled with the inner wall of the water inlet, an arc groove is provided on the top of the fixing sleeve, a circular groove is provided on the top of the fixing sleeve, a hollow long rod is movably connected to the inner wall of the fixing sleeve, and an air bag is fixedly assembled on the bottom of the hollow long rod.

[0006] As a preferred technical solution of the present invention, the inner cavity of the mounting sleeve is provided with a support spring, and the support spring is located at the top of the sealing plug.

[0007] As a preferred technical solution of the present invention, a pressure spring is provided in the inner cavity of the fixed sleeve, and the pressure spring is movably sleeved on the hollow long rod.

[0008] As a preferred technical solution of the present invention, a gas sleeve is fixedly mounted on the inner wall of the hollow long rod, and a blocking rod is movably connected to the inner wall of the gas sleeve.

[0009] As a preferred technical solution of the present invention, the inner cavity of the gas sleeve is provided with a deflation spring, and the deflation spring is movably sleeved on the blocking rod.

[0010] As a preferred technical solution of the present invention, a support frame is fixedly mounted on the outer edge of the water tank, a base is movably connected to the bottom of the support frame, and the base is fixedly mounted on the pump body.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The automatic water replenishing device for the drainage self-priming pump injects water into the water tank through the operation of the pump body. When the water level in the pump body drops, the pressure of the water in the water tank presses the hollow long rod and the air bag downward, so that the hollow long rod does not seal the fixed sleeve. The water in the water tank flows into the pump body through the fixed sleeve, so that the water level in the pump body rises, thereby solving the problem of low working efficiency in existing self-priming pumps that water is added to the pump body manually.

[0013] 2. The automatic water replenishing device for the drainage self-priming pump is configured to install the water tank on a support frame, which is then installed on a base, so that the angle of the water tank can be adjusted. The water tank can be changed from a vertical state to a horizontal state, thereby lowering the overall height of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A in the figure shows the enlarged structural diagram;

[0016] Figure 3 This is a schematic diagram of the structure of the water outlet and water inlet positions of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 5 For this utility model Figure 4 The enlarged structural diagram at B in FIG.

[0019] In the figure: 1. Motor; 2. Pump body; 3. Water outlet; 31. Mounting sleeve; 32. Through groove; 33. Sealing plug; 34. Support spring; 4. Water inlet; 41. Fixed sleeve; 42. Arc groove; 43. Circular groove; 44. Hollow long rod; 45. Air bag; 46. Pressure spring; 47. Gas sleeve; 48. Blocking rod; 49. Deflation spring; 5. Water tank; 51. Support frame; 52. Base; 6. Water inlet pipe; 7. Water outlet pipe; 8. Circulation pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 - Figure 5 When the water level in the pump body 2 drops, the water in the water tank 5 flows back to the pump body 2 through the water outlet pipe 7, so that the water in the pump body 2 reaches an appropriate amount. The inner wall of the water outlet 3 is provided with a mounting sleeve 31, and the top of the mounting sleeve 31 is provided with a through pipe 8. The through pipe 8 is connected to the inner cavity of the pump body 2. The groove 32 and the inner wall of the mounting sleeve 31 are movably connected with a sealing plug 33. The water in the pump body 2 will generate pressure when it moves. At this time, the water will push the sealing plug 33 upward, so that the water enters the water tank 5 through the mounting sleeve 31. The inner wall of the water inlet 4 is fixedly equipped with a fixed sleeve 41. The top of the fixed sleeve 41 is provided with an arc groove 42, and the top of the fixed sleeve 41 is provided with a circular groove 43. The inner wall of the fixed sleeve 41 is movably connected with a hollow long rod 44, and the bottom of the hollow long rod 44 is fixedly equipped with an air bag 45. By utilizing the buoyancy of water, the water can float the air bag 45, so that the air bag 45 pushes the hollow long rod 44 upward, so that the top of the hollow long rod 44 seals the circular groove 43 on the fixed sleeve 41. When the water level in the pump body 2 drops, the hollow long rod 44 is separated from the top of the fixed sleeve 41, and water can enter the pump body 2 through the fixed sleeve 41.

[0022] In a preferred embodiment, the inner cavity of the mounting sleeve 31 is provided with a support spring 34, and the support spring 34 is located at the top of the sealing plug 33. The sealing plug 33 is supported by the support spring 34 so that the sealing plug 33 can seal the bottom of the mounting sleeve 31, so that the water in the water tank 5 cannot enter the pump body 2 through the mounting sleeve 31, so that water can only enter the water tank 5 from the pump body 2.

[0023] In a preferred embodiment, the inner cavity of the fixed sleeve 41 is provided with a pressure spring 46, and the pressure spring 46 is movably connected to the hollow long rod 44. When the water in the pump body 2 flows, the airbag 45 and the hollow long rod 44 will cause unstable movement. At this time, the hollow long rod 44 is supported by the pressure spring 46, so that the hollow long rod 44 can seal the fixed sleeve 41 more stably.

[0024] In a preferred embodiment, the inner wall of the hollow long rod 44 is fixedly equipped with a gas sleeve 47, and the inner wall of the gas sleeve 47 is movably connected to a blocking rod 48. The gas sleeve 47 is sealed by the blocking rod 48, so that the gas in the air bag 45 cannot be discharged through the gas sleeve 47. When discharging, the blocking rod 48 can be pressed downward. Through the setting of the blocking rod 48 and the gas sleeve 47, the gas in the air bag 45 can be discharged, which facilitates the air bag 45 to be taken out of the pump body 2 for cleaning.

[0025] In a preferred embodiment, the inner cavity of the gas sleeve 47 is provided with a deflation spring 49, which is movably sleeved on the blocking rod 48. The blocking rod 48 is supported by the deflation spring 49, so that the bottom of the blocking rod 48 can seal the bottom of the gas sleeve 47, thereby improving the rationality of the device.

[0026] In a preferred embodiment, the outer edge of the water tank 5 is fixedly equipped with a support frame 51, and the bottom of the support frame 51 is movably connected to a base 52. The base 52 is fixedly assembled on the pump body 2 and is connected to the base 52 through the support frame 51. When the water pump is not in use, the water tank 5 can be folded, and the water tank 5 can be changed from a vertical state to a horizontal state, so that the overall height of the water pump is lowered.

[0027] Working principle: when in use, the pump body 2 is driven by the motor 1 to run. At this time, the water level in the pump body 2 is low. At this time, the gravity of the water in the water tank 5 presses the hollow long rod 44 downward, so that the hollow long rod 44 does not seal the fixed sleeve 41. At this time, water flows into the pump body 2 through the fixed sleeve 41, causing the water level in the pump body 2 to rise. Then water is pumped into the pump body 2. At this time, the water pressure pushes the sealing plug 33 upward, so that the sealing plug 33 does not seal the installation sleeve 31, so that water is injected into the water tank 5. After the water in the water tank 5 is full, it flows back to the pump body 2 through the circulation pipe 8. When the air bag 45 needs to be taken out, the blocking rod 48 is pressed downward, and the gas in the air bag 45 is discharged through the gas sleeve 47. At this time, the hollow long rod 44, the air bag 45 and the fixed sleeve 41 can be taken out from the water inlet 4 to clean the surface of the air bag 45.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic water replenishing device for a drainage self-priming pump, comprising a motor (1), characterized in that: A pump body (2) is installed on the right side of the motor (1). A water outlet (3) and a water inlet (4) are provided on the top of the pump body (2). A water tank (5) is provided on the top of the water inlet (4). A flow pipe (8) is installed on the top of the water tank (5). The flow pipe (8) is connected to the inner cavity of the pump body (2). The water tank (5) is connected to the water outlet (3) and the water inlet (4) through the water inlet pipe (6) and the water outlet pipe (7). A mounting sleeve (31) is installed on the inner wall of the water outlet (3). A through groove (32) is provided on the top of the installation sleeve (31), a sealing plug (33) is movably connected to the inner wall of the installation sleeve (31), a fixing sleeve (41) is fixedly assembled on the inner wall of the water inlet (4), an arc groove (42) is provided on the top of the fixing sleeve (41), a circular groove (43) is provided on the top of the fixing sleeve (41), a hollow long rod (44) is movably connected to the inner wall of the fixing sleeve (41), and an air bag (45) is fixedly assembled on the bottom of the hollow long rod (44).

2. The automatic water replenishing device for a drainage self-priming pump according to claim 1, characterized in that: A support spring (34) is provided in the inner cavity of the mounting sleeve (31), and the support spring (34) is located on the top of the sealing plug (33).

3. The automatic water replenishing device for a drainage self-priming pump according to claim 1, characterized in that: A pressure spring (46) is provided in the inner cavity of the fixed sleeve (41), and the pressure spring (46) is movably sleeved on the hollow long rod (44).

4. The automatic water replenishing device for a drainage self-priming pump according to claim 1, characterized in that: A gas sleeve (47) is fixedly mounted on the inner wall of the hollow long rod (44), and a blocking rod (48) is movably connected to the inner wall of the gas sleeve (47).

5. The automatic water replenishing device for a drainage self-priming pump according to claim 4, characterized in that: The inner cavity of the gas sleeve (47) is provided with a deflation spring (49), and the deflation spring (49) is movably sleeved on the blocking rod (48).

6. The automatic water replenishing device for a drainage self-priming pump according to claim 1, characterized in that: A support frame (51) is fixedly mounted on the outer edge of the water tank (5), a base (52) is movably connected to the bottom of the support frame (51), and the base (52) is fixedly mounted on the pump body (2).

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