Miniature high-pressure electromagnetic pump
By using inverted steps and stepped surface structures, combined with sealing sleeves and fixing frames, the problems of reduced flow velocity and vibration caused by the length of the electromagnetic pump flow channel are solved, achieving efficient and stable liquid delivery and low-noise operation.
Patent Information
- Application Number
- CN202520036014.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-08
AI Technical Summary
The existing electromagnetic pump has a long flow channel at the connection between the inlet and outlet pipes, which leads to a decrease in liquid flow rate, an increase in friction, severe vibration and noise, and loose connections, making it unable to meet the usage requirements.
The design incorporates inverted steps and stepped surface structures, with the upper end of the outlet pipe inserted into the inlet pipe. The sealing sleeve and fixing bracket are fixedly connected, reducing the flow channel length and frictional resistance, absorbing vibration energy, and improving flow velocity and stability.
It achieves high liquid flow rate, low noise, and high stability, reduces the risk of loose connections and leakage, extends equipment life, and meets usage requirements.
Smart Images

Figure CN223662023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic pump technology, specifically to a miniature high-voltage electromagnetic pump. Background Technology
[0002] An electromagnetic pump is a device that uses electromagnetic force to drive the flow of liquid. It has a unique working principle, structural features, and a wide range of applications. An electromagnetic pump includes an inlet pipe, an outlet pipe, and an electromagnetic drive assembly. Liquid enters through the inlet pipe, is pressurized by the electromagnetic drive assembly, and is then transported to the designated location through the outlet pipe.
[0003] Currently, most electromagnetic pumps have their inlet and outlet pipes directly connected. The flow path between the inlet and outlet pipes is relatively long, increasing the contact area and time between the liquid and the inner wall of the flow path. Due to the friction between the liquid and the inner wall of the flow path, the flow resistance increases, resulting in a decrease in liquid velocity. At the same time, the operation of the electromagnetic pump causes significant vibration and noise between the inlet and outlet pipes. In severe cases, this can lead to loosening of the connection between the inlet and outlet pipes, making it impossible to meet usage requirements. Utility Model Content
[0004] To address the shortcomings of the existing technology, this utility model provides a miniature high-pressure electromagnetic pump with a simple and compact structure, fast flow rate, more efficient and rapid pumping process, low degradation, stable operation, and low noise, thus meeting the usage requirements.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A miniature high-pressure electromagnetic pump includes a support frame and an electromagnetic assembly. The support frame houses an inlet pipe and an outlet pipe. The lower end of the inlet pipe has an inverted step, and the upper end of the outlet pipe has an outwardly extending stepped surface, the position of which corresponds to the position of the inverted step. The upper end of the outlet pipe has a sealing sleeve, and the upper end of the outlet pipe is inserted into the inlet pipe from the lower end. The upper end of the sealing sleeve abuts against the inverted step, and the lower end of the sealing sleeve abuts against the stepped surface. A fixing bracket is fitted around the connection between the inlet and outlet pipes, and the fixing bracket is installed within the support frame. The lower end of the support frame has a notch for the fixing bracket to extend downwards. The outer side of the inlet pipe has a fixing step, and the edge of the notch abuts against the upper surface of the fixing step. The fixing bracket is bowl-shaped, and its bottom has a through hole. The lower end of the outlet pipe extends downwards through the through hole, and the edge of the through hole has a 90-degree inwardly bent limiting plate, which abuts against the lower end of the stepped surface.
[0007] In the above description, as a preferred embodiment, the fixed step is provided with a fixed protrusion, and the fixed frame is provided with a fixed groove that matches the fixed protrusion, and the fixed protrusion is installed into the fixed groove.
[0008] In the above description, as a preferred embodiment, the electromagnetic component includes a coil winding, a frame, and a plunger. The frame is located outside the water inlet pipe, and an iron ring is provided between the water inlet pipe and the frame. The coil winding is located on the frame. The plunger is a hollow tubular structure with a larger upper end and a smaller lower end. The upper end of the plunger is located inside the water inlet pipe, and both the upper and lower ends of the plunger are provided with return springs. The lower end of the plunger passes through the return springs and is inserted into the sealing sleeve to communicate with the water outlet pipe.
[0009] In the above description, as a preferred embodiment, the skeleton is covered with a rubber coating, and the support frame is disposed outside the rubber coating.
[0010] In the above description, as a preferred embodiment, the lower end opening of the water inlet pipe is provided with an inclined surface, which slopes inward from bottom to top.
[0011] In the above description, as a preferred embodiment, a gasket is provided between the sealing sleeve and the step surface.
[0012] In the above description, as a preferred embodiment, the plunger is provided with a sealing assembly, which includes a limit ring, a one-way valve, and a sealing spring. The one-way valve abuts against the lower opening of the plunger, the limit ring is located below the one-way valve, and the limit ring is provided with an installation groove. The upper end of the sealing spring is connected to the one-way valve, and the lower end of the sealing spring is installed in the installation groove.
[0013] In the above description, as a preferred embodiment, the fixing frame is connected to the support frame by a screw.
[0014] The beneficial effects of this utility model are as follows: the lower end of the inlet pipe is provided with an inverted step, and the upper end of the outlet pipe is provided with an outwardly extending stepped surface. The position of the stepped surface corresponds to the position of the inverted step. The upper end of the outlet pipe is provided with a sealing sleeve. The upper end of the outlet pipe is inserted into the inlet pipe from the lower end. The upper end of the sealing sleeve abuts against the inverted step, and the lower end of the sealing sleeve abuts against the stepped surface. The structure is simple and compact. One end of the outlet pipe is inserted into the inlet pipe, reducing the length of the flow channel, reducing the contact area and contact time between the liquid and the inner wall of the flow channel when the liquid flows in the flow channel, reducing the frictional resistance between the liquid and the inner wall of the flow channel, forming a relatively stable flow field, increasing the liquid flow rate, and making the liquid transportation process more efficient and faster with low attenuation. At the same time, since one end of the outlet pipe is inserted into the inlet pipe, leakage at the pipe connection can be reduced. To mitigate leakage risks and extend equipment lifespan, a fixing bracket is fitted around the connection between the inlet and outlet pipes. The bracket is installed within a support frame, with a notch at the lower end of the support frame allowing the bracket to extend downwards. A fixing step is located on the outer side of the inlet pipe, with the edge of the notch abutting the upper surface of the fixing step. The fixing bracket is bowl-shaped with a through hole at its bottom, through which the lower end of the outlet pipe extends downwards. A 90-degree inwardly bent limiting plate is located along the edge of the through hole, abutting the lower end of the step surface. This fixing bracket balances the connection stress between the inlet and outlet pipes, absorbs and disperses some vibration energy, reduces the impact of vibration on the connection, lowers the risk of loosening and damage due to vibration, improves connection and operational stability, and reduces noise generated by vibration and shaking of the inlet and outlet pipes. Attached Figure Description
[0015] Figure 1 : This is a structural schematic diagram of an embodiment of the present utility model;
[0016] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;
[0017] Figure 3 This is an exploded view of the inlet and outlet pipes according to an embodiment of the present invention.
[0018] Figure 4 This is a cross-sectional view of the inlet and outlet pipes according to an embodiment of the present invention.
[0019] Explanation of the symbols in the attached diagram: 10-Support frame, 11-Notch, 20-Inlet pipe, 21-Sloping surface, 22-Inverted step, 23-Fixed step, 24-Fixed protrusion, 30-Outlet pipe, 31-Step surface, 32-Sealing sleeve, 40-Fixed bracket, 41-Screw, 42-Fixed groove, 43-Through hole, 44-Limiting plate, 50-Frame, 51-Plunger, 52-Iron ring, 53-Glue-coated, 54-Reset spring, 55-Limiting ring, 56-Check valve, 57-Sealing spring, 58-Mounting groove. Detailed Implementation
[0020] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments:
[0021] This embodiment: as follows Figure 1-4 As shown, the miniature high-pressure electromagnetic pump includes a support frame 10 and an electromagnetic component. The support frame 10 is provided with an inlet pipe 20 and an outlet pipe 30. The lower end opening of the inlet pipe 20 is provided with an inclined surface 21. The inclined surface 21 slopes inward from bottom to top. The design of the inclined surface 21 makes it convenient for the outlet pipe 30 to be installed into the inlet pipe 20.
[0022] The lower end of the inlet pipe 20 is provided with an inverted step 22, and the upper end of the outlet pipe 30 is provided with an outwardly extending stepped surface 31. The position of the stepped surface 31 corresponds to the position of the inverted step 22. The upper end of the outlet pipe 30 is provided with a sealing sleeve 32. The upper end of the outlet pipe 30 is inserted into the inlet pipe 20 from the lower end of the inlet pipe 20. The upper end of the sealing sleeve 32 abuts against the inverted step 22, and the lower end of the sealing sleeve 32 abuts against the stepped surface 31. A gasket is provided between the sealing sleeve 32 and the stepped surface 31. The gasket can fill the gap between the inverted step 22 and the stepped surface 31, improve the sealing performance, and at the same time, absorb the vibration and impact force between the inverted step 22 and the stepped surface 31.
[0023] A fixing bracket 40 is fitted on the outside of the connection between the water inlet pipe 20 and the water outlet pipe 30. The fixing bracket 40 is installed inside the support frame 10 and connected to the support frame 10 by a screw 41. The lower end of the support frame 10 is provided with a notch 11 for the fixing bracket 40 to extend downward. The outside of the water inlet pipe 20 is provided with a fixing step 23. The edge of the notch 11 abuts against the upper end face of the fixing step 23 to fix the position of the water inlet pipe 20. The fixing step 23 is provided with a fixing protrusion 24. The fixing bracket 40 is provided with a fixing groove 42 that matches the fixing protrusion 24. The fixing protrusion 24 is inserted into the fixing groove 42 to further fix the position of the water inlet pipe 20. The fixing bracket 40 is bowl-shaped and has a through hole 43 at its bottom. The lower end of the water outlet pipe 30 extends downward through the through hole 43. The edge of the through hole 43 is provided with a limiting plate 44 that bends inward at ninety degrees. The limiting plate 44 abuts against the lower end of the step surface 31 to fix the position of the water outlet pipe 30.
[0024] The electromagnetic assembly includes a coil winding, a frame 50, and a plunger 51. The frame 50 is located outside the water inlet pipe 20, and an iron ring 52 is provided between the water inlet pipe 20 and the frame 50. The iron ring 52 is used to enhance and optimize the magnetic field. The coil winding is located on the frame 50, and the frame 50 is covered with a rubber coating 53. The support frame 10 is located outside the rubber coating 53. The plunger 51 is a hollow tubular structure with a larger upper end and a smaller lower end. The upper end of the plunger 51 is located inside the water inlet pipe 20, and both the upper and lower ends of the plunger 51 are equipped with return springs 54. The lower end of the plunger 51 passes through a return spring. Spring 54 is inserted into sealing sleeve 32 and connected to water outlet pipe 30. The design of sealing sleeve 32 can provide a better sealing effect at the connection between plunger 51 and water outlet pipe 30. A sealing assembly is provided inside plunger 51. The sealing assembly includes limit ring 55, one-way valve 56 and sealing spring 57. One-way valve 56 abuts against the lower end opening of plunger 51. Limit ring 55 is set below one-way valve 56 and has a mounting groove 58 inside limit ring 55. The upper end of sealing spring 57 is connected to one-way valve 56 and the lower end of sealing spring 57 is installed in mounting groove 58.
[0025] When in use, the coil winding is energized to generate a magnetic field, which is enhanced and optimized by the iron ring 52 and transmitted to the plunger 51. The plunger 51, together with the return springs 54 at both ends, reciprocates in the water inlet pipe 20, which drives the liquid in the water inlet pipe 20 to move towards the water outlet pipe 30. The liquid squeezes the sealing spring 57 by the flow rate and impact force, and at the same time, opens the one-way valve 56, and the liquid flows out from the water outlet pipe 30.
[0026] This product features a simple and compact structure. One end of the outlet pipe 30 is inserted into the inlet pipe 20, reducing the length of the flow channel and decreasing the contact area and contact time between the liquid and the inner wall of the channel. This reduces the frictional resistance between the liquid and the inner wall, creating a relatively stable flow field, increasing the liquid velocity, and making the liquid transport process more efficient and faster with low attenuation. Furthermore, since one end of the outlet pipe 30 is inserted into the inlet pipe 20, the risk of leakage at the pipe connection is reduced, extending the equipment's service life. The mounting bracket 40 balances the connection stress between the inlet pipe 20 and the outlet pipe 30, absorbs and disperses some vibration energy, reduces the impact of vibration on the connection, lowers the risk of loosening and damage caused by vibration, improves the stability of the connection and operation, and reduces noise generated by the vibration and shaking of the inlet pipe 20 and the outlet pipe 30.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A miniature high-pressure electromagnetic pump, comprising a support frame and an electromagnetic assembly, characterized in that: The support frame contains an inlet pipe and an outlet pipe. The lower end of the inlet pipe has an inverted step, and the upper end of the outlet pipe has an outwardly extending step surface. The position of the step surface corresponds to the position of the inverted step. The upper end of the outlet pipe has a sealing sleeve. The upper end of the outlet pipe is inserted into the inlet pipe from the lower end. The upper end of the sealing sleeve abuts against the inverted step, and the lower end of the sealing sleeve abuts against the step surface. A fixing bracket is fitted on the outside of the connection between the inlet and outlet pipes. The fixing bracket is installed inside the support frame, and the lower end of the support frame has a notch for the fixing bracket to extend downward. The outer side of the inlet pipe has a fixing step, and the edge of the notch abuts against the upper surface of the fixing step. The fixing bracket is bowl-shaped, and its bottom has a through hole. The lower end of the outlet pipe extends downward through the through hole. The edge of the through hole has a limiting plate that bends inward at ninety degrees, and the limiting plate abuts against the lower end of the step surface.
2. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: The fixed step is provided with a fixed protrusion, and the fixed frame is provided with a fixed groove that matches the fixed protrusion. The fixed protrusion is installed into the fixed groove.
3. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: The electromagnetic assembly includes a coil winding, a frame, and a plunger. The frame is located outside the water inlet pipe, and an iron ring is provided between the water inlet pipe and the frame. The coil winding is located on the frame. The plunger is a hollow tubular structure with a larger upper end and a smaller lower end. The upper end of the plunger is located inside the water inlet pipe, and both the upper and lower ends of the plunger are equipped with return springs. The lower end of the plunger passes through the return springs and is inserted into the sealing sleeve to communicate with the water outlet pipe.
4. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: The skeleton is covered with rubber, and the support frame is set outside the rubber cover.
5. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: The lower end of the water inlet pipe has an inclined surface on the inside, which slopes inward from bottom to top.
6. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: A gasket is provided between the sealing sleeve and the step surface.
7. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: The plunger is equipped with a sealing assembly, which includes a limit ring, a one-way valve, and a sealing spring. The one-way valve rests against the lower opening of the plunger. The limit ring is located below the one-way valve and has an installation groove inside. The upper end of the sealing spring is connected to the one-way valve, and the lower end of the sealing spring is installed in the installation groove.
8. The miniature high-pressure electromagnetic pump according to claim 1, characterized in that: The mounting bracket is connected to the support frame via screws.