Water pump structure with trap structure

Abstract

The utility model relates to a water pump structure with a trap structure, which comprises a pump body and an end cover mounted on the pump body, a cavity for an impeller to move is formed in the end cover, the end cover is provided with a first water inlet and a first water outlet, the first water inlet and the first water outlet are respectively communicated with the cavity, the end cover is provided with a trap pipe, and the trap pipe is communicated with the cavity. And the bottom end of the trap pipe is communicated with the first water inlet. By arranging the trap, the purpose of storing water can be achieved, the highest height of the liquid level in the cavity is equal to the height of the top end of the trap, and the bottom end of the trap is communicated with the first water inlet, so that the top end of the trap is certainly higher than the first water inlet, and the highest height of the liquid level in the cavity can be increased; the impeller can be more immersed in water, so that the rotation stability of the impeller is improved, the self-suction capacity is improved, and the service life of the water pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of water pumps, in particular to a water pump structure with a water trap structure. Background Art

[0002] A booster pump, as the name suggests, is a pump used to increase pressure. Its main uses include boosting water heaters, increasing the water pressure in high-rise buildings, increasing the pressure in saunas and baths, increasing the water pressure on the top floor of an apartment, automatically boosting the pressure with solar energy, and boosting the pressure in reverse osmosis water purifiers. The principle is to first fill the booster pump with liquid, then start the impeller to rotate rapidly. The impeller's blades drive the liquid to rotate, and the liquid relies on inertia to flow toward the outer edge of the impeller as it rotates. At the same time, the impeller draws liquid from the suction chamber. During this process, the liquid in the impeller flows around the blades. During the circumferential motion, the liquid exerts a lift on the blades. In turn, the blades act on the liquid with a force equal to and opposite to the lift. This force does work on the liquid, causing the liquid to gain energy and flow out of the impeller. At this time, both the kinetic energy and pressure energy of the liquid increase.

[0003] At present, the traditional pump body has an end cover at the opening such as Figure 1 As shown, the water inlet at the end cover 2 is straight. After the water enters the pump body, the maximum liquid level does not exceed the water inlet. The internal liquid cannot submerge the impeller, which will lead to insufficient water pressure and weak self-priming ability of the water pump. At the same time, the impeller is not stable enough during rotation, which will cause additional vibration during rotation and shorten the service life of the water pump. Utility Model Content

[0004] In order to allow the impeller in the water pump to be more submerged in water during operation, the present application provides a water pump structure with a trap structure.

[0005] The water pump structure with a trap structure provided in this application adopts the following technical solution:

[0006] A water pump structure with a water trap structure includes a pump body and an end cover installed on the pump body, a chamber for impeller movement is opened in the end cover, the end cover has a first water inlet and a first water outlet, the first water inlet and the first water outlet are respectively connected to the chamber, a water trap pipe is provided on the end cover, and the bottom end of the water trap pipe is connected to the first water inlet.

[0007] By adopting the above technical solution and setting up a water trap, the purpose of storing water can be achieved. The highest height of the liquid level in the chamber is equal to the height of the top end of the water trap. Since the bottom end of the water trap is connected to the first water inlet, the top end of the water trap will definitely be higher than the height of the first water inlet, which can increase the highest height of the liquid level in the chamber and allow the impeller to be immersed in water more, thereby improving the stability of the impeller rotation, improving the self-priming ability, and extending the service life of the water pump.

[0008] Preferably, the top of the trap is at the same level as the top of the chamber.

[0009] By adopting the above technical solution, the chamber can be just filled with water, while the water trap can be kept at an appropriate size as much as possible.

[0010] Preferably, the first water outlet is located above the chamber.

[0011] By adopting the above technical solution, the first water outlet is equivalent to the overflow port of the chamber, so by arranging the first water outlet above the chamber, the first water outlet does not affect the liquid level in the chamber.

[0012] Preferably, a first flange is provided at the top of the trap pipe, a second flange is provided at the end cover at the first water outlet, and a reinforcement plate is provided on the end cover, which is fixedly connected to the trap, the first flange and the second flange.

[0013] By adopting the above technical solution, by setting the first flange and the second flange, the docking of the water trap, the first water outlet and the external pipeline is facilitated. At the same time, by setting the reinforcement plate, the connection strength between the end cover and the water trap, the first flange and the second flange can be improved.

[0014] Preferably, a one-way component for preventing liquid backflow is installed at the first water outlet, the one-way component comprising a housing, a spring, a mounting block and a blocking component, the housing having a second water inlet and a second water outlet, the second water inlet being connected to the first water outlet;

[0015] A movable chamber is provided through the shell, one end of the movable chamber is connected to the second water inlet, the other end of the movable chamber is connected to the outside world, the middle part of the movable chamber is connected to the second water outlet, the mounting block is detachably connected to the end of the movable chamber away from the second water inlet, the two ends of the spring respectively abut the mounting head and the sealing assembly, the sealing assembly moves in the movable chamber, when the water pressure entering the second water outlet is less than the elastic force of the spring, the sealing assembly abuts against the inner wall of the end of the movable chamber close to the second water inlet to seal the second water inlet; when the water pressure entering the second water outlet is greater than the elastic force of the spring, the sealing assembly moves toward the side away from the second water inlet, and the second water inlet is connected to the second water outlet.

[0016] Preferably, the sealing assembly includes a plug and a sliding rod, the plug is fixedly connected to the bottom end of the sliding rod, a hollow bracket is formed at one end of the mounting block close to the second water inlet, the top end of the sliding rod is slidably connected to the hollow bracket along the length direction of the movable cavity, the spring is sleeved on the sliding rod and the hollow bracket, a limiting ring is formed on the outer wall of the hollow bracket, an annular limiting groove is provided on the top surface of the plug, and the two ends of the spring respectively abut against the limiting ring and the bottom wall of the limiting groove.

[0017] Preferably, a deformation groove is provided at the top end of the slide rod, and a barb is provided at the top end of the slide rod toward the outside, the barb is located above the hollow bracket, and the barb is used to hook the hollow bracket.

[0018] By adopting the above technical solution, the deformation groove is opened to improve the deformability of the top end of the sliding rod, so that the barb on the sliding rod can enter the top of the hollow bracket; by setting the barb, when disassembling the mounting block, the blocking assembly can be directly brought out of the shell, which facilitates the disassembly and assembly of the one-way assembly.

[0019] The technical effects of this utility model are mainly reflected in the following aspects:

[0020] 1. The utility model can achieve the purpose of water storage by providing a water trap. The highest height of the liquid level in the chamber is equal to the height of the top of the water trap. Since the bottom end of the water trap is connected to the first water inlet, the top of the water trap will definitely be higher than the height of the first water inlet, which can increase the highest height of the liquid level in the chamber, so that the impeller can be immersed in water for a longer period of time, thereby improving the stability of the impeller rotation, increasing the water pressure, and extending the service life of the water pump;

[0021] 2. The utility model arranges the first water outlet above the chamber, and the first water outlet is equivalent to the overflow port of the chamber. Therefore, by arranging the first water outlet above the chamber, the first water outlet does not affect the liquid level in the chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the end cover of the related art.

[0023] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0024] Figure 3 It is a schematic diagram of the connection between the pump body, end cover and one-way component of the embodiment of the present application.

[0025] Figure 4 It is a structural schematic diagram of the end cover of an embodiment of the present application.

[0026] Figure 5 This is a structural diagram of the end cover from another angle of the embodiment of the present application

[0027] Figure 6 It is along Figure 3 Partial cross-sectional view along line AA.

[0028] Explanation of the accompanying drawings: 1. Pump body; 2. End cover; 21. Chamber; 22. First water inlet; 23. First water outlet; 231. Second flange; 24. Reinforcement plate; 3. Trap; 31. First flange; 4. One-way component; 41. Shell; 411. Movable cavity; 412. Second water inlet; 4121. Third flange; 413. Second water outlet; 42. Spring; 43. Mounting block; 431. Hollow bracket; 432. Limiting ring; 5. Sealing component; 51. Plug; 511. Limiting groove; 52. Slide rod; 521. Deformation groove; 522. Barb; 6. Shell; 61. Mounting port; 62. Connecting port; 7. Power supply. DETAILED DESCRIPTION

[0029] The following is combined with Figure 2-Figure 6 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0030] The embodiment of the present application discloses a water pump structure with a trap structure.

[0031] Reference Figure 2-Figure 5 A water pump structure with a water trap structure in this embodiment includes a pump body 1 and an end cover 2 installed on the pump body 1. A chamber 21 for impeller movement is opened in the end cover 2. The end cover 2 has a first water inlet 22 and a first water outlet 23. The first water inlet 22 and the first water outlet 23 are respectively connected to the chamber 21. A water trap pipe 3 is provided on the end cover 2. The bottom end of the water trap pipe 3 is connected to the first water inlet 22.

[0032] Reference Figure 3 The pump body 1 contains a motor and an impeller. The motor is used to drive the impeller to rotate in the chamber 21. The blades of the impeller drive the liquid to rotate. When the liquid rotates, it relies on inertia to flow to the outer edge of the impeller. At the same time, the impeller sucks in liquid from the suction chamber. In this process, the liquid in the impeller flows around the blades. During the flow, the liquid acts a lift on the blades. In turn, the blades act on the liquid with a force equal to and opposite to the lift. This force does work on the liquid, causing the liquid to gain energy and flow out of the impeller. At this time, both the kinetic energy and pressure energy of the liquid increase.

[0033] Reference Figure 3-Figure 5 By setting up the water trap 3, the purpose of water storage can be achieved. The highest height of the liquid level in the chamber 21 is equal to the height of the top of the water trap 3. Since the bottom end of the water trap 3 is connected to the first water inlet 22, the top of the water trap 3 will definitely be higher than the height of the first water inlet 22, which can increase the highest height of the liquid level in the chamber 21, so that the impeller can be immersed in water more, thereby improving the stability of the impeller rotation, increasing the water pressure, and extending the service life of the water pump.

[0034] Reference Figure 4 and Figure 5The top of the trap 3 is at the same level as the top of the chamber 21. This allows the chamber 21 to be filled with water while keeping the trap 3 at a suitable size.

[0035] Reference Figure 4 and Figure 5 The first water outlet 23 is located above the chamber 21. The first water outlet 23 is equivalent to the overflow port of the chamber 21. Therefore, by arranging the first water outlet 23 above the chamber 21, the first water outlet 23 does not affect the liquid level in the chamber 21.

[0036] Reference Figure 4 and Figure 5 A first flange 31 is provided at the top of the trap pipe 3, and a second flange 231 is provided at the end cover 2 at the first water outlet 23. A reinforcing plate 24 is provided on the end cover 2, and the reinforcing plate 24 is fixedly connected to the trap, the first flange 31 and the second flange 231.

[0037] Reference Figure 4 and Figure 5 By setting the first flange 31 and the second flange 231, the docking of the water trap 3, the first water outlet 23 and the external pipeline is facilitated. At the same time, by setting the reinforcement plate 24, the connection strength between the end cover 2 and the water trap 3, the first flange 31 and the second flange 231 can be improved.

[0038] Reference Figure 3 and Figure 4 A one-way component 4 for preventing liquid backflow is installed at the first water outlet 23. The one-way component 4 includes a shell 41, a spring 42, a mounting block 43 and a blocking component 5. The shell 41 has a second water inlet 412 and a second water outlet 413. A third flange 4121 is provided at the second water inlet 412. The third flange 4121 is fixedly connected to the second flange 231 by bolts. After the second flange 231 is connected to the third flange 4121, the second water inlet 412 will be connected to the first water outlet 23.

[0039] Reference Figure 3 and Figure 6, a movable chamber 411 is provided throughout the shell 41, one end of the movable chamber 411 is connected to the second water inlet 412, the other end of the movable chamber 411 is connected to the outside, the middle of the movable chamber 411 is connected to the second water outlet 413, the mounting block 43 is threadedly connected to the end of the movable chamber 411 away from the second water inlet 412, the two ends of the spring 42 respectively abut the mounting head and the blocking component 5, the blocking component 5 moves in the movable chamber 411, when the water pressure entering the second water outlet 413 is less than the elastic force of the spring 42, the blocking component 5 abuts on the inner wall of the end of the movable chamber 411 close to the second water inlet 412 to block the second water inlet 412; when the water pressure entering the second water outlet 413 is greater than the elastic force of the spring 42, the blocking component 5 moves toward the side away from the second water inlet 412, and the second water inlet 412 is connected to the second water outlet 413.

[0040] Reference Figure 3 and Figure 6 The sealing assembly 5 includes a plug 51 and a sliding rod 52. The plug 51 is fixedly connected to the bottom end of the sliding rod 52. A hollow bracket 431 is formed at one end of the mounting block 43 close to the second water inlet 412. The top of the sliding rod 52 is slidably connected to the hollow bracket 431 along the length direction of the movable cavity 411. The spring 42 is sleeved on the sliding rod 52 and the hollow bracket 431. A limiting ring 432 is formed on the outer wall of the hollow bracket 431. An annular limiting groove 511 is provided on the top surface of the plug 51. The two ends of the spring 42 respectively abut against the limiting ring 432 and the bottom wall of the limiting groove 511.

[0041] Reference Figure 3 and Figure 6 The top of the slide bar 52 is provided with a deformation groove 521, and the top of the slide bar 52 is provided with a barb 522 facing outward. The barb 522 is located above the hollow bracket 431 and is used to hook the hollow bracket 431. The provision of the deformation groove 521 can improve the deformability of the top of the slide bar 52, allowing the barb 522 on the slide bar 52 to enter the top of the hollow bracket 431. By providing the barb 522, when removing the mounting block 43, the blocking assembly 5 can be directly removed from the housing 41, thereby facilitating the disassembly and assembly of the one-way assembly 4.

[0042] Reference Figure 2 and Figure 3 The water pump structure with a trap structure in this embodiment also includes a shell 6, which wraps the pump body 1 and the one-way component 4. The pump body 1 is fixed to the shell 6 by bolts. A power supply 7 for powering the motor is also provided in the shell 6. A mounting port 61 and two connecting ports 62 are provided on the outside of the shell 6. The mounting port 61 is used to install the mounting block 43 on the outside of the shell 6. The two connecting ports 62 correspond to the first water inlet 22 and the second water outlet 413 respectively, and are used to connect an external water pipe.

[0043] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A water pump structure with a trap structure, characterized by: The invention comprises a pump body (1) and an end cover (2) mounted on the pump body (1); a chamber (21) for the movement of an impeller is provided in the end cover (2); the end cover (2) has a first water inlet (22) and a first water outlet (23); the first water inlet (22) and the first water outlet (23) are respectively connected to the chamber (21); a water trap (3) is provided on the end cover (2); the bottom end of the water trap (3) is connected to the first water inlet (22).

2. The water pump structure with a trap structure according to claim 1, characterized in that: The top end of the water trap (3) and the top end of the chamber (21) are located at the same horizontal height.

3. The water pump structure with a trap structure according to claim 1, characterized in that: The first water outlet (23) is located above the chamber (21).

4. The water pump structure with a trap structure according to claim 1, characterized in that: The top end of the water trap pipe (3) is provided with a first flange (31), the end cover (2) is provided with a second flange (231) at the first water outlet (23), and the end cover (2) is provided with a reinforcement sheet (24), which is fixedly connected to the water trap, the first flange (31) and the second flange (231).

5. The water pump structure with a trap structure according to claim 1, characterized in that: A one-way assembly (4) for preventing liquid backflow is installed at the first water outlet (23), the one-way assembly (4) comprising a housing (41), a spring (42), a mounting block (43) and a blocking assembly (5), the housing (41) having a second water inlet (412) and a second water outlet (413), the second water inlet (412) being in communication with the first water outlet (23); A movable chamber (411) is provided through the shell (41), one end of the movable chamber (411) is connected to the second water inlet (412), the other end of the movable chamber (411) is connected to the outside, the middle of the movable chamber (411) is connected to the second water outlet (413), the mounting block (43) is detachably connected to the end of the movable chamber (411) away from the second water inlet (412), the two ends of the spring (42) respectively abut against the mounting head and the blocking component (5), and the blocking component (5) is in the movable chamber. The sealing component (5) moves in the cavity (411). When the water pressure entering the second water outlet (413) is less than the elastic force of the spring (42), the sealing component (5) abuts against the inner wall of one end of the movable cavity (411) close to the second water inlet (412) to seal the second water inlet (412); when the water pressure entering the second water outlet (413) is greater than the elastic force of the spring (42), the sealing component (5) moves toward the side away from the second water inlet (412), and the second water inlet (412) is connected to the second water outlet (413).

6. The water pump structure with a trap structure according to claim 5, characterized in that: The blocking assembly (5) comprises a plug (51) and a slide rod (52), wherein the plug (51) is fixedly connected to the bottom end of the slide rod (52), a hollow bracket (431) is formed at one end of the mounting block (43) close to the second water inlet (412), the top end of the slide rod (52) is slidably connected in the hollow bracket (431) along the length direction of the movable cavity (411), the spring (42) is sleeved on the slide rod (52) and the hollow bracket (431), a limiting ring (432) is formed on the outer wall of the hollow bracket (431), an annular limiting groove (511) is provided on the top surface of the plug (51), and the two ends of the spring (42) respectively abut against the limiting ring (432) and the bottom wall of the limiting groove (511).

7. The water pump structure with a trap structure according to claim 6, characterized in that: The top of the slide rod (52) is provided with a deformation groove (521), and the top of the slide rod (52) is provided with a barb (522) facing outward. The barb (522) is located above the hollow bracket (431) and is used to hook the hollow bracket (431).

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