Miniature electromagnetic pump convenient to assemble

Abstract

The utility model relates to the technical field of electromagnetic pumps, in particular to a miniature electromagnetic pump convenient to assemble, which comprises a support frame, a water inlet pipe, a water outlet pipe and an electromagnetic component, an annular mounting plate is arranged on the outer edge of an upper end opening of the water outlet pipe, a positioning column is arranged on the upper end face of the annular mounting plate, and a positioning hole matched with the positioning column is arranged at the bottom of the support frame. The water inlet pipe and the electromagnetic assembly are installed in the supporting frame, the lower end of the water inlet pipe penetrates through the supporting frame to be downwards installed in the water outlet pipe, a first step face, a second step face and a third step face which are annularly arranged are arranged in an opening in the upper end of the water outlet pipe, a flaring ring groove is formed in an opening in the lower end of the water inlet pipe, and the bottom of the flaring ring groove abuts against the second step face. An annular inverted step is arranged on the outer wall of the flaring ring groove and corresponds to the first step face in position, a sleeve is arranged at the third step, the upper end of the sleeve abuts against the third step, and the lower end of the sleeve is inserted into the water outlet pipe. The utility model has the advantages of simple structure, convenience and rapidness in assembly and good sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic pump technology, and more specifically to a miniature electromagnetic pump that is easy to assemble. 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, the inlet and outlet pipes of electromagnetic pumps are mostly installed using welding, threaded connections, and flange connections. While welding can create a strong and well-sealed system, it makes the pipes difficult to disassemble after welding. If the pipes or electromagnetic pump malfunction and require repair or replacement of parts, the welded area must be damaged, increasing the difficulty and cost of repair. Threaded connections require a certain amount of operating space to rotate and tighten or loosen, making the installation and disassembly process relatively cumbersome, time-consuming, and labor-intensive, and the seal is poor, failing to meet usage requirements. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a miniature electromagnetic pump that is easy to assemble, has a simple structure, is convenient and quick to assemble, has good sealing performance, and meets the usage requirements.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This easily assembled miniature electromagnetic pump includes a support frame, an inlet pipe, an outlet pipe, and an electromagnetic assembly. The outlet pipe has a funnel-shaped opening at its upper end, with an annular mounting plate along its outer edge. The annular mounting plate is located at the lower end of the support frame, and a positioning post is located on its upper surface. The bottom of the support frame has a positioning hole that mates with the positioning post. The positioning post is inserted into the positioning hole, and screws are passed through the annular mounting plate and screwed into the support frame, connecting the outlet pipe to the support frame. The inlet pipe and electromagnetic assembly are installed within the support frame, with the lower end of the inlet pipe passing through the support frame and inserted downwards into the outlet pipe. The upper opening of the outlet pipe... The device consists of a first step surface, a second step surface, and a third step surface arranged in a ring from top to bottom. The lower end of the inlet pipe has a flared annular groove. The bottom of the flared annular groove abuts against the second step surface. The outer wall of the flared annular groove has an annular inverted step. The position of the annular inverted step corresponds to the position of the first step surface. A first gasket is provided between the annular inverted step and the first step surface. The upper and lower ends of the first gasket are respectively attached to the annular inverted step and the first step surface. A sleeve is provided at the third step. The cross-section of the sleeve is T-shaped. Its upper end abuts against the third step, and its lower end is inserted into the outlet pipe. The flared annular groove is fitted around the upper outer side of the sleeve.

[0007] In the above description, as a preferred embodiment, a second gasket is provided at the contact point between the sleeve and the third step.

[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 a return spring is provided at the upper end of the plunger. The lower end of the plunger extends out of the water inlet pipe and is inserted into the sleeve.

[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, preferably, the lower end of the frame is provided with an annular limiting groove, the overlay is embedded in the annular limiting groove, the top and bottom of the frame are respectively provided with a first inclined surface and a second inclined surface, the first inclined surface is inclined from bottom to top, and the second inclined surface is inclined from top to bottom. The upper and lower ends of the overlay are respectively provided with a first limiting plate and a second limiting plate that are bent inward at ninety degrees, the end of the first limiting plate is provided with a third inclined surface, and the end of the second limiting plate is provided with a fourth inclined surface, the third inclined surface is inclined from top to bottom, and the fourth inclined surface is inclined from bottom to top. The third inclined surface is inserted below the first inclined surface, and the fourth inclined surface is inserted below the second inclined surface, so that the upper and lower surfaces of the overlay and the frame form a plane.

[0011] In the above description, as a preferred embodiment, the plunger is provided with a sealing assembly, which includes a sealing plug and a sealing spring. One end of the sealing spring is connected to the inner wall of the plunger, and the other end of the sealing spring is connected to the sealing plug. The sealing plug abuts against the lower opening of the plunger from top to bottom.

[0012] In the above description, as a preferred embodiment, the outlet pipe is provided with a one-way valve, a compression spring, and an annular mounting groove. The one-way valve abuts against the lower opening of the plunger from bottom to top. The annular mounting groove is located below the one-way valve. One end of the compression spring is installed in the annular mounting groove, and the other end of the compression spring is connected to the one-way valve.

[0013] In the above description, as a preferred embodiment, the upper end of the sleeve is provided with a buffer groove, and a buffer pad is embedded in the buffer groove, with the upper surface of the buffer pad being higher than the upper surface of the sleeve.

[0014] The beneficial effects of this utility model are as follows: An annular mounting plate is provided on the outer edge of the opening, located at the lower end of the support frame. A positioning post is provided on the upper surface of the annular mounting plate, and a positioning hole adapted to the positioning post is provided at the bottom of the support frame. The positioning post is inserted into the positioning hole, and screws are screwed into the support frame through the annular mounting plate to connect the water outlet pipe to the support frame. The design of the positioning post and positioning hole allows the water outlet pipe to be quickly aligned with the installation position of the support frame. Simultaneously, the screws facilitate installation and subsequent disassembly. The upper opening of the water outlet pipe has a first, second, and third stepped surface arranged in annular pattern from top to bottom. The lower opening of the water inlet pipe has a flared annular groove, the bottom of which abuts against… On the second step surface, the outer wall of the flared annular groove is provided with an annular inverted step, the position of which corresponds to the position of the first step surface. A first gasket is provided between the annular inverted step and the first step surface, with the upper and lower ends of the first gasket respectively fitting against the annular inverted step and the first step surface. A sleeve is provided at the third step, with a T-shaped cross-section. Its upper end rests against the third step, and its lower end is inserted into the outlet pipe. The flared annular groove is fitted onto the outer side of the upper end of the sleeve. The stepped design improves the error prevention and guiding function when connecting the inlet and outlet pipes, enabling quick docking of the inlet and outlet pipes. Assembly is convenient and quick. At the same time, the stepped design can also form multiple sealing defenses, improving sealing performance and meeting usage requirements. 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 structural schematic diagram of an embodiment of the present utility model;

[0019] Explanation of reference numerals in the attached diagram: 10-Support frame, 11-Positioning hole, 20-Inlet pipe, 21-Flanged annular groove, 30-Outlet pipe, 31-Annular mounting plate, 311-Positioning post, 312-Screw, 32-First step surface, 33-Second step surface, 34-Third step surface, 35-Annular inverted step, 351-First gasket, 36-Sleeve, 361-Second gasket, 362-Buffer groove, 363-Buffer pad 37-One-way valve, 38-Compression spring, 39-Annular mounting groove, 40-Electromagnetic assembly, 41-Frame, 411-Annular limiting groove, 412-First inclined surface, 413-Second inclined surface, 42-Plunger, 43-Iron ring, 44-Reset spring, 45-Sealing plug, 46-Sealing spring, 47-Glue-coated, 48-First limiting plate, 481-Third inclined surface, 49-Second limiting plate, 491-Fourth inclined surface. 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 easily assembled miniature electromagnetic pump includes a support frame 10, an inlet pipe 20, an outlet pipe 30, and an electromagnetic assembly 40.

[0022] The upper opening of the water outlet pipe 30 is funnel-shaped, and an annular mounting plate 31 is provided on the outer edge of the opening. The annular mounting plate 31 is located at the lower end of the support frame 10. The upper surface of the annular mounting plate 31 is provided with a positioning post 311. The bottom of the support frame 10 is provided with a positioning hole 11 that matches the positioning post 311. The positioning post 311 is inserted into the positioning hole 11 and screwed into the support frame 10 through the annular mounting plate 31 by a screw 312, so that the water outlet pipe 30 is connected to the support frame 10. The design of the positioning post 311 and the positioning hole 11 allows the water outlet pipe 30 to be quickly aligned with the installation position of the support frame 10. At the same time, it is fixed by the screw 312, which facilitates installation and subsequent disassembly.

[0023] The inlet pipe 20 and the electromagnetic component 40 are installed inside the support frame 10. The lower end of the inlet pipe 20 passes through the support frame 10 and is inserted downward into the outlet pipe 30. The upper opening of the outlet pipe 30 has a first step surface 32, a second step surface 33, and a third step surface 34 arranged in a ring from top to bottom. The lower opening of the inlet pipe 20 has a flared annular groove 21. The bottom of the flared annular groove 21 abuts against the second step surface 33. The outer wall of the flared annular groove 21 has an annular inverted step 35. The position of the annular inverted step 35 corresponds to the position of the first step surface 32. A first gasket 351 is provided between the annular inverted step 35 and the first step surface 32. The upper and lower ends of the first gasket 351 are respectively connected to the first step surface 32. The annular inverted step 35 and the first step surface 32 are fitted together. A sleeve 36 is provided at the third step. The cross-section of the sleeve 36 is T-shaped. Its upper end abuts against the third step. A second gasket 361 is provided at the fitting point of the sleeve 36 and the third step. Its lower end is inserted into the water outlet pipe 30. The flared annular groove 21 is fitted on the outer side of the upper end of the sleeve 36. The stepped design improves the error prevention and guiding function when the water inlet pipe 20 and the water outlet pipe 30 are connected, and realizes the quick docking of the water inlet pipe 20 and the water outlet pipe 30. The assembly is convenient and quick. At the same time, the stepped design, together with the gasket set at the connection, can also form multiple sealing defenses, improve the sealing performance, and meet the use requirements.

[0024] The electromagnetic component 40 includes a coil winding, a frame 41, and a plunger 42. The frame 41 is located outside the water inlet pipe 20, and an iron ring 43 is provided between the water inlet pipe 20 and the frame 41. The iron ring 43 is used to enhance and optimize the magnetic field. The coil winding is located on the frame 41. The plunger 42 is a hollow tubular structure with a larger upper end and a smaller lower end. The upper end of the plunger 42 is located inside the water inlet pipe 20, and a return spring 44 is provided at the upper end of the plunger 42. The lower end of the plunger 42 extends out of the water inlet pipe 20 and is inserted into the sleeve 36. A buffer groove 362 is provided at the upper end of the sleeve 36, and a buffer is embedded in the buffer groove 362. The upper surface of the buffer pad 363 is higher than the upper surface of the sleeve 36. The buffer pad 363 is used to buffer the impact force of the reciprocating motion of the plunger 42 and prevent collision damage to the sleeve 36. The plunger 42 is provided with a sealing assembly, which includes a sealing plug 45 and a sealing spring 46. One end of the sealing spring 46 is connected to the inner wall of the plunger 42, and the other end of the sealing spring 46 is connected to the sealing plug 45. The sealing plug 45 abuts against the lower opening of the plunger 42 from top to bottom. The outlet pipe 30 is provided with a one-way valve 37, a compression spring 38, and an annular mounting groove 39. The one-way valve 37 is installed from bottom to top. The annular mounting groove 39 is located below the one-way valve 37 at the lower opening of the plunger 42. One end of the compression spring 38 is installed in the annular mounting groove 39, and the other end of the compression spring 38 is connected to the one-way valve 37. The frame 41 is covered with a rubber coating 47, and the support frame 10 is set outside the rubber coating 47. The lower end of the frame 41 is provided with an annular limiting groove 411, and the rubber coating 47 is embedded in the annular limiting groove 411. The top and bottom of the frame 41 are respectively provided with a first inclined surface 412 and a second inclined surface 413. The first inclined surface 412 is inclined from bottom to top, and the second inclined surface 413 is inclined from top to bottom. The upper and lower ends of the rubber coating 47 are respectively provided with a first limiting plate 48 and a second limiting plate 49 that are bent inward at ninety degrees. The end of the first limiting plate 48 is provided with a third inclined surface 481, and the end of the second limiting plate 49 is provided with a fourth inclined surface 491. The third inclined surface 481 is inclined from top to bottom, and the fourth inclined surface 491 is inclined from bottom to top. The third inclined surface 481 is inserted below the first inclined surface 412, and the fourth inclined surface 491 is inserted below the second inclined surface 413, so that the upper and lower surfaces of the rubber coating 47 and the frame 41 form a plane, which improves the overall connection stability of the electromagnetic component 40 and makes the structure more compact.

[0025] When in use, the coil winding is energized to generate a magnetic field, which is enhanced and optimized by the iron ring 43 and transmitted to the plunger 42, causing the plunger 42 to reciprocate within the water inlet pipe 20. When the plunger 42 approaches the upper opening of the water inlet pipe 20, liquid flows into the plunger 42. The return spring 44 pushes the plunger 42 to move quickly toward the water outlet pipe 30. At the same time, the water pressure inside the plunger 42 pushes open the sealing plug 45, and the liquid flows toward the water outlet pipe 30. After the liquid is discharged, the sealing spring 46 drives the sealing plug 45 to reset. Simultaneously, the water pressure opens the one-way valve 37, and the liquid flows out from the water outlet pipe 30.

[0026] 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 electromagnetic pump that is easy to assemble, comprising a support frame, an inlet pipe, an outlet pipe, and an electromagnetic assembly, characterized in that: The upper opening of the water outlet pipe is funnel-shaped, and an annular mounting plate is provided on the outer edge of the opening. The annular mounting plate is located at the lower end of the support frame, and a positioning post is provided on the upper surface of the annular mounting plate. The bottom of the support frame has a positioning hole that matches the positioning post. The positioning post is inserted into the positioning hole, and screws are screwed into the support frame through the annular mounting plate to connect the water outlet pipe to the support frame. The water inlet pipe and the electromagnetic component are installed inside the support frame, and the lower end of the water inlet pipe passes through the support frame and is inserted downward into the water outlet pipe. The upper opening of the water outlet pipe has a first annularly arranged unit arranged from top to bottom. The water inlet pipe has a flared annular groove at its lower opening, with the bottom of the flared annular groove abutting against the second step surface. The outer wall of the flared annular groove has an annular inverted step, the position of which corresponds to the position of the first step surface. A first gasket is provided between the annular inverted step and the first step surface, with the upper and lower ends of the first gasket respectively fitting against the annular inverted step and the first step surface. A sleeve is provided at the third step, with a T-shaped cross-section. Its upper end abuts against the third step, and its lower end is inserted into the water outlet pipe. The flared annular groove is fitted around the upper outer side of the sleeve.

2. The easily assembled miniature electromagnetic pump according to claim 1, characterized in that: A second gasket is provided at the joint between the sleeve and the third step.

3. The easily assembled miniature 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 a return spring is provided at the upper end of the plunger. The lower end of the plunger extends out of the water inlet pipe and is inserted into the sleeve.

4. The easily assembled miniature electromagnetic pump according to claim 3, characterized in that: The skeleton is covered with rubber, and the support frame is set outside the rubber cover.

5. The easily assembled miniature electromagnetic pump according to claim 4, characterized in that: The lower end of the frame is provided with an annular limiting groove, and the rubber coating is embedded in the annular limiting groove. The top and bottom of the frame are respectively provided with a first inclined surface and a second inclined surface. The first inclined surface is inclined from bottom to top, and the second inclined surface is inclined from top to bottom. The upper and lower ends of the rubber coating are respectively provided with a first limiting plate and a second limiting plate that are bent inward at ninety degrees. The end of the first limiting plate is provided with a third inclined surface, and the end of the second limiting plate is provided with a fourth inclined surface. The third inclined surface is inclined from top to bottom, and the fourth inclined surface is inclined from bottom to top. The third inclined surface is inserted below the first inclined surface, and the fourth inclined surface is inserted below the second inclined surface, so that the upper and lower surfaces of the rubber coating and the frame form a plane.

6. The easily assembled miniature electromagnetic pump according to claim 3, characterized in that: The plunger is equipped with a sealing assembly, which includes a sealing plug and a sealing spring. One end of the sealing spring is connected to the inner wall of the plunger, and the other end of the sealing spring is connected to the sealing plug. The sealing plug abuts against the lower opening of the plunger from top to bottom.

7. The easily assembled miniature electromagnetic pump according to claim 6, characterized in that: The outlet pipe is equipped with a one-way valve, a compression spring, and an annular mounting groove. The one-way valve rests against the lower opening of the plunger from bottom to top. The annular mounting groove is located below the one-way valve. One end of the compression spring is installed in the annular mounting groove, and the other end of the compression spring is connected to the one-way valve.

8. The easily assembled miniature electromagnetic pump according to claim 3, characterized in that: The upper end of the sleeve is provided with a buffer groove, and a buffer pad is embedded in the buffer groove. The upper surface of the buffer pad is higher than the upper surface of the sleeve.

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