Electromagnetic pump

Abstract

The utility model discloses an electromagnetic pump which comprises a pump head body and an end cover, the pump head body is connected with the end cover, a water inlet and a water outlet are formed in the end cover, a booster cavity is formed in the pump head body, and a one-way water flow control seat is arranged on a water path, communicated with the water outlet, of the booster cavity. The pump head body is further internally provided with a water pumping assembly which directly pumps source water from the booster cavity to the water outlet through axial reciprocating motion. Water is pumped without a pressurizing diaphragm, so that the production cost of the pump is reduced.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport equipment technology, specifically to an electromagnetic pump. Background Technology

[0002] Electromagnetic pumps, which use magnetic fields to pump water, are widely used. Existing electromagnetic pumps use a pressure-boosting diaphragm to change the volume of the pressure chamber to achieve the process of water intake and pumping. The use of a pressure-boosting diaphragm makes the overall production cost of the pump relatively high. Utility Model Content

[0003] The purpose of this invention is to provide an electromagnetic pump that eliminates the need for a pressure-boosting diaphragm, thereby reducing pump production costs.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0005] An electromagnetic pump includes a pump head body and an end cover. The pump head body is connected to the end cover. The end cover is provided with an inlet and an outlet. The pump head body is provided with a pressurization chamber. A one-way water flow control seat is provided on the water passage connecting the pressurization chamber to the outlet and the inlet. The pump head body is also provided with a pumping assembly that directly squeezes source water from the pressurization chamber to the outlet by axial reciprocating movement.

[0006] In this solution, the water pump assembly reciprocates in the axial direction to deliver the source water to the pressurization chamber through the one-way water flow control seat. The water pump assembly then directly squeezes the source water entering the pump head body to the outlet. There is no need for a pressurization diaphragm. The water pump assembly directly contacts the source water and participates in the pumping process. Therefore, the pressurization diaphragm is eliminated, thereby reducing the production cost of the pump.

[0007] Optionally, the pump assembly includes a plunger and a first sealing ring, the first sealing ring being circumferentially fitted around the plunger, and the bottom surface of the plunger having a downward-facing conical protrusion.

[0008] Optionally, the plunger is provided with a first bracket on both sides and a second bracket below the first bracket. The plunger and the first bracket can slide relative to each other in the axial direction. The first sealing ring is located between the first bracket and the plunger, and the one-way water flow control seat is located between the first bracket and the second bracket.

[0009] Optionally, a return water chamber is formed between the plunger and the inner wall of the pump head body, and a return water flow channel is formed between the inner wall of the pump head body and the first bracket, which is connected to the return water chamber and the water inlet.

[0010] Optionally, the one-way water flow control seat includes an inlet one-way valve disc and an outlet one-way cap. The outlet one-way cap is located in the middle of the inlet one-way valve disc and is integrally formed with the inlet one-way valve disc. The inlet one-way valve disc is pressed between the first bracket and the second bracket. The outlet one-way cap is located inside the second bracket. The first bracket and the outlet one-way cap form a pressurization chamber. The inlet one-way valve disc is set on the water path connecting the inlet and the water passage chamber. The outlet one-way cap is set on the water path connecting the pressurization chamber and the outlet. The plunger and the first sealing ring reciprocate axially to draw the source water from the inlet into the pressurization chamber and then pump it from the pressurization chamber to the outlet.

[0011] Optionally, a water passage is formed between the first bracket and the second bracket. The first bracket is provided with a water outlet for connecting the water passage between the pressurization chamber and the water passage, and the second bracket is provided with a water inlet channel for connecting the water passage between the water passage and the water inlet.

[0012] Optionally, the outlet one-way cap is distributed in an inverted cone shape below the inlet one-way valve disc, and the bottom of the outlet one-way cap is provided with a water passage gap.

[0013] Optionally, it also includes a drive assembly for driving the pump assembly to reciprocate axially. The drive assembly includes a housing, a coil, and a magnetic rod. A sleeve is provided on the top of the pump head body, the housing is sleeved on the sleeve, the coil is wound inside the housing, and the magnetic rod is slidably disposed inside the sleeve. The lower end of the magnetic rod is connected to the top surface of the plunger.

[0014] Optionally, the sleeve is provided with a sliding cavity for the magnetic transmission rod to move axially. A spring is provided in the sliding cavity, and a bottom cover connected to the sleeve is provided at the top of the sliding cavity. One end of the spring acts on the top of the magnetic transmission rod, and the other end acts on the bottom cover.

[0015] Optionally, the end cap is further provided with an inlet chamber connected to the inlet and an outlet chamber connected to the outlet. A second sealing ring is pressed between the end cap and the pump head body. The inlet chamber is connected to the inlet channel and the return channel.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this utility model, the water pump assembly reciprocates in the axial direction to transport the source water to the pressurization chamber through the one-way water flow control seat. The water pump assembly then directly squeezes the source water entering the pump head body to the outlet. There is no need for a pressurization diaphragm. The water pump assembly directly contacts the source water and participates in the pumping. Therefore, the pressurization diaphragm is eliminated, thereby reducing the production cost of the pump. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Reference numerals: 01-Outlet, 02-Outlet cavity, 03-Outlet one-way cap, 04-Second bracket, 05-End cap, 06-Second sealing ring, 07-Inlet one-way valve disc, 08-First bracket, 09-Pass through port, 10-Pump head body, 11-First sealing ring, 12-Plunger, 13-Magnetic rod, 14-Coil, 15-Housing shell, 16-Bottom cover, 17-Spring, 18-Sliding cavity, 19-Return cavity, 20-Return channel, 21-Conical protrusion, 22-Pass through cavity, 23-Inlet channel, 24-Inlet cavity, 25-Pressure chamber, 26-Inlet. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "axial", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example

[0024] An electromagnetic pump includes a pump head body 10 and an end cover 05. The pump head body 10 is connected to the end cover 05. The end cover 05 is provided with an inlet 26 and an outlet 01. The pump head body 10 is provided with a pressurizing chamber 25. A one-way water flow control seat is provided on the water passage connecting the pressurizing chamber 25 to the outlet 01 and the inlet 26. The pump head body 10 is also provided with a pumping assembly that directly squeezes source water from the pressurizing chamber 25 to the outlet 01 by axial reciprocating movement.

[0025] like Figure 1As shown, in this embodiment, the water pump assembly reciprocates in the axial direction to transport the source water to the pressurization chamber 25 via the one-way water flow control seat. The water pump assembly then directly squeezes the source water that has entered the pump head body 10 to the outlet 01. Without the need for a pressurization diaphragm, the water pump assembly directly contacts the source water and participates in the pumping process. Therefore, the pressurization diaphragm is eliminated, thereby reducing the production cost of the pump.

[0026] Furthermore, the pump assembly includes a plunger 12 and a first sealing ring 11. The first sealing ring 11 is circumferentially fitted around the plunger 12, and the bottom surface of the plunger 12 is provided with a downward conical protrusion 21.

[0027] Furthermore, the plunger 12 is provided with a first bracket 08 on both sides, and a second bracket 04 is provided below the first bracket 08. The plunger 12 and the first bracket 08 can slide relative to each other in the axial direction. The first sealing ring 11 is located between the first bracket 08 and the plunger 12, and the one-way water flow control seat is located between the first bracket 08 and the second bracket 04.

[0028] Specifically, the shape of the first bracket 08 is adapted to the shape of the inner wall of the pump head body 10. The second bracket 04 is located below the first bracket 08. A sealing ring is provided between the first bracket 08, the second bracket 04 and the end cover 05 to improve the sealing performance. The plunger 12 and the conical protrusion 21 are integrally formed to form a T-shaped structure. The area between the two first brackets is adapted to the shape of the plunger 12 and the conical protrusion 21. The two sides of the plunger 12 slide in contact with the inner wall of the first bracket 08. When the plunger 12 moves upward, the volume of the pressurization chamber 25 increases, and the source water is drawn into the pressurization chamber 25 from the inlet 26. When the plunger 12 moves downward, the volume of the pressurization chamber 25 decreases, and the source water in the pressurization chamber 25 is squeezed to the outlet 01 to realize the pumping. There is no need for a pressurization diaphragm. The pumping assembly directly contacts the source water and participates in the pumping. Therefore, the pressurization diaphragm is eliminated, thereby reducing the production cost of the pump.

[0029] Furthermore, a return water chamber 19 is formed between the plunger 12 and the inner wall of the pump head body 10, and a return water flow channel 20 is formed between the inner wall of the pump head body 10 and the first bracket 08, which is connected to the return water chamber 19 and the water inlet 26.

[0030] Specifically, because the first sealing ring 11 moves up and down frequently with the plunger 12, it is prone to wear, which reduces the sealing effect between the plunger 12 and the first bracket 08. If the first sealing ring 11 is worn, the source water in the pressurization chamber 25 will enter the return water chamber 19 through the gap between the plunger 12 and the first bracket 08, and then be transported to the outlet 01 through the return water channel 20 to achieve the return flow effect.

[0031] Furthermore, the one-way water flow control seat includes an inlet one-way valve disc 07 and an outlet one-way cap 03. The outlet one-way cap 03 is located in the middle of the inlet one-way valve disc 07 and is integrally formed with the inlet one-way valve disc 07. The inlet one-way valve disc 07 is pressed between the first bracket 08 and the second bracket 04. The outlet one-way cap 03 is located inside the second bracket 04. The first bracket 08 and the outlet one-way cap 03 form a pressurization chamber 25. The inlet one-way valve disc 07 is set on the water path connecting the inlet 26 and the water passage chamber 22. The outlet one-way cap 03 is set on the water path connecting the pressurization chamber 25 and the outlet 01. The plunger 12 and the first sealing ring 11 move axially to draw the source water from the inlet 26 into the pressurization chamber 25 and then pump it from the pressurization chamber 25 to the outlet 01.

[0032] Furthermore, a water passage 22 is formed between the first support 08 and the second support 04. The first support 08 is provided with a water outlet 09 for connecting the water passage between the pressurization chamber 25 and the water passage 22. The second support 04 is provided with a water inlet channel 23 for connecting the water passage between the water passage 22 and the water inlet 26.

[0033] Furthermore, the outlet one-way cap 03 is distributed in an inverted cone shape below the inlet one-way valve disc 07, and a water passage gap is provided at the bottom of the outlet one-way cap 03. Specifically, the shape of the outlet one-way cap 03 is adapted to the cone-shaped protrusion 21. The outlet one-way cap 03 is made of rubber, and a water passage gap (not shown in the figure) is cut at its bottom. When the electromagnetic pump is not working, the water passage gap is closed. Only when the source water in the pressurization chamber 25 is squeezed will the water passage gap open and connect the water passage between the pressurization chamber 25 and the outlet chamber 02.

[0034] Furthermore, it also includes a drive assembly for driving the pump assembly to move axially back and forth. The drive assembly includes a housing 15, a coil 14, and a magnetic rod 13. A sleeve 27 is provided on the top of the pump head body 10. The housing 15 is sleeved on the sleeve 27. The coil 14 is wound inside the housing 15. The magnetic rod 13 is slidably disposed inside the sleeve 27. The lower end of the magnetic rod 13 is connected to the top surface of the plunger 12.

[0035] Specifically, the sleeve 27 is fixedly connected to the pump head body 10, and the housing 15 is directly sleeved and fixed on the sleeve 27, that is, the sleeve 27 passes through the housing 15. The housing 15 has a coil 14 wound on the horizontal surface inside. The housing 15 is made of metal and can play a shielding role.

[0036] Furthermore, the sleeve 27 is provided with a sliding cavity 18 for the magnetic transmission rod 13 to move axially. A spring 17 is provided in the sliding cavity 18. A bottom cover 16 connected to the sleeve 27 is provided at the top of the sliding cavity 18. One end of the spring 17 acts on the top of the magnetic transmission rod 13, and the other end acts on the bottom cover 16.

[0037] Specifically, after applying alternating current to coil 14, coil 14 generates an alternating magnetic field, which in turn drives the magnetic transmission rod 13 to move back and forth along its axial direction, which is the length direction of magnetic transmission rod 13. In order to avoid collision at the top of magnetic transmission rod 13, a spring 17 is provided. When magnetic transmission rod 13 moves upward, the spring 17 is compressed. The spring 17 can buffer magnetic transmission rod 13 and prevent the top of magnetic transmission rod 13 from colliding with the bottom cover 16.

[0038] Furthermore, the end cap 05 is also provided with an inlet chamber 24 that communicates with the inlet 26 and an outlet chamber 02 that communicates with the outlet 01. A second sealing ring 06 is pressed between the end cap 05 and the pump head body 10. The inlet chamber 24 is connected to the inlet channel 23 and the return channel 20.

[0039] The working principle of this utility model is as follows: After the electromagnetic pump is energized, the coil 14 generates an alternating magnetic field, which drives the magnetic transmission rod 13 to move upward and compresses the spring 17. The lower end of the magnetic transmission rod 13 is connected to the top surface of the plunger 12. The magnetic transmission rod 13 then drives the plunger 12 and the first sealing ring 11 to move upward, thereby increasing the volume of the pressurization chamber 25. This draws the source water from the inlet 26 into the inlet chamber 24, and then into the inlet flow channel 23. The inlet one-way valve 07 is then opened, and the source water enters the water passage chamber 22. The source water in the water passage chamber 22 then enters the pressurization chamber 25 through the water inlet 09. Then, the alternating magnetic field generated by the coil 14 drives the magnetic transmission rod 13 downward. The magnetic rod 13 moves downward, driving the plunger 12 and the first sealing ring 11 to move downward. The plunger 12, together with the conical protrusion 21, reduces the volume of the pressurizing chamber 25, increasing the water pressure inside the pressurizing chamber 25. This causes the water passage gap at the bottom of the one-way cap 03 to open, thereby squeezing the source water in the pressurizing chamber 25 into the outlet chamber 02, and then outputting it through the outlet 01, thus realizing the function of pumping water. This solution changes the volume of the pressurizing chamber 25 by moving the plunger 12 up and down. Compared with the existing technology, it does not require the cooperation of a pressurizing diaphragm. The plunger 12 directly contacts the source water and participates in pumping water. Therefore, the pressurizing diaphragm is eliminated, thereby reducing the production cost of the pump.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An electromagnetic pump, comprising a pump head body (10) and an end cover (05), wherein the pump head body (10) is connected to the end cover (05), and the end cover (05) is provided with an inlet (26) and an outlet (01), characterized in that, The pump head body (10) is provided with a pressurization chamber (25). A one-way water flow control seat is provided on the water path connecting the pressurization chamber (25) and the outlet (01). The pump head body (10) is also provided with a pumping assembly that directly pumps the source water from the pressurization chamber (25) to the outlet (01) by axial reciprocating movement.

2. The electromagnetic pump according to claim 1, characterized in that, The pump assembly includes a plunger (12) and a first sealing ring (11). The first sealing ring (11) is circumferentially fitted around the plunger (12), and the bottom surface of the plunger (12) is provided with a downward conical protrusion (21).

3. An electromagnetic pump according to claim 2, characterized in that, The plunger (12) is provided with a first bracket (08) on both sides, and a second bracket (04) is provided below the first bracket (08). The plunger (12) and the first bracket (08) can slide relative to each other in the axial direction. The first sealing ring (11) is located between the first bracket (08) and the plunger (12). The one-way water flow control seat is located between the first bracket (08) and the second bracket (04).

4. An electromagnetic pump according to claim 3, characterized in that, A return water chamber (19) is formed between the plunger (12) and the inner wall of the pump head body (10), and a return water flow channel (20) is formed between the inner wall of the pump head body (10) and the first bracket (08) and the return water chamber (19) and the inlet (26).

5. An electromagnetic pump according to claim 3, characterized in that, The one-way water flow control seat includes an inlet one-way valve disc (07) and an outlet one-way cap (03). The outlet one-way cap (03) is located in the middle of the inlet one-way valve disc (07) and is integrally formed with the inlet one-way valve disc (07). The inlet one-way valve disc (07) is pressed between the first bracket (08) and the second bracket (04). The outlet one-way cap (03) is located inside the second bracket (04). The first bracket (08) and the outlet one-way cap (03) The two sides form a booster chamber (25). The inlet one-way valve (07) is set on the water path connecting the inlet (26) and the water passage (22). The outlet one-way cap (03) is set on the water path connecting the booster chamber (25) and the outlet (01). The plunger (12) and the first sealing ring (11) move axially to draw the source water from the inlet (26) into the booster chamber (25) and then pump it from the booster chamber (25) to the outlet (01).

6. An electromagnetic pump according to claim 5, characterized in that, The first support (08) and the second support (04) form a water passage (22). The first support (08) is provided with a water outlet (09) for connecting the water passage between the pressurization chamber (25) and the water passage (22). The second support (04) is provided with a water inlet channel (23) for connecting the water passage between the water passage (22) and the water inlet (26).

7. An electromagnetic pump according to claim 5, characterized in that, The outlet one-way cap (03) is distributed in an inverted cone shape below the inlet one-way valve disc (07), and the bottom of the outlet one-way cap (03) is provided with a water passage gap.

8. An electromagnetic pump according to claim 1, characterized in that, It also includes a drive assembly for driving the pump assembly to move axially back and forth. The drive assembly includes a housing (15), a coil (14), and a magnetic rod (13). A sleeve (27) is provided on the top of the pump head body (10). The housing (15) is sleeved on the sleeve (27). The coil (14) is wound inside the housing (15). The magnetic rod (13) is slidably disposed inside the sleeve (27). The lower end of the magnetic rod (13) is connected to the top surface of the plunger (12).

9. An electromagnetic pump according to claim 8, characterized in that, The sleeve (27) is provided with a sliding cavity (18) for the magnetic rod (13) to move axially. A spring (17) is provided in the sliding cavity (18). A bottom cover (16) connected to the sleeve (27) is provided at the top of the sliding cavity (18). One end of the spring (17) acts on the top of the magnetic rod (13), and the other end acts on the bottom cover (16).

10. An electromagnetic pump according to claim 1, characterized in that, The end cap (05) is also provided with an inlet chamber (24) connected to the inlet (26) and an outlet chamber (02) connected to the outlet (01). A second sealing ring (06) is pressed between the end cap (05) and the pump head body (10). The inlet chamber (24) is connected to the inlet channel (23) and the return channel (20).

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