CN212583889U

CN212583889U - Electromagnetic pump

Info

Publication number: CN212583889U
Application number: CN202021048988.6U
Authority: CN
Inventors: 徐建群
Original assignee: Ningbo Haohui Pump Co ltd
Current assignee: Ningbo Haohui Pump Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-02-23
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses an electromagnetic pump, electromagnetic drive part and pump body part that meet around including, pump body part includes pump case, holding pump core seat in the pump case and assembles in the pump case and wraps up in the seal cover of pump core seat periphery for assembly gap between sealed pump core seat and the pump case inner wall. Among its technical scheme, replace a plurality of sealing washers that adopt among the prior art by the seal cover, can realize the sealed between pump core seat periphery and pump case inner wall, effectively play the effect that leak protection gas leaked, sealed effect is better, and the assembly is more convenient.

Description

Electromagnetic pump

Technical Field

The utility model relates to an electromagnetic pump technical field especially relates to an electromagnetic pump.

Background

The electromagnetic pump is a liquid pump which directly combines power and a pump body into a whole, and mainly generates magnetic induction after an electromagnetic coil is electrified, so that a movable pump core generates electromagnetic oscillation to form vacuum in a piston cavity, a check valve in the piston cavity is opened, and a return spring drives the movable core to do reciprocating cyclic periodic vibration to pump water. The electromagnetic pump has the characteristics of simple structure, light volume and attractive appearance, and is widely applied to the matching of various small household appliance water supply devices such as electric irons, coffee machines, cleaning machines and the like.

Refer to the chinese patent publication No. CN210531083U, "an anti-blocking electromagnetic pump", which discloses an anti-blocking electromagnetic pump capable of dredging the water outlet and preventing the poor movement of the check body of the electromagnetic pump. The electromagnetic pump comprises a magnetizer, a coil plastic-coated coil, a magnetism isolating pipe and a pump core seat, wherein the coil plastic-coated coil is positioned at the periphery of the coil, the magnetism isolating pipe is connected with the pump core seat, the pump core seat comprises a water outlet, the coil is connected with the magnetizer, the magnetizer is connected with the magnetism isolating pipe, the utility model discloses a pump core, including the magnetism-isolating pipe, be equipped with pump core, pump core spring and pump core internal spring in the magnetism-isolating pipe, one side that the pump core was kept away from to pump core seat delivery port is provided with the first non return body with spring coupling in the pump core towards one side of pump core, one side that the pump core was kept away from to pump core seat delivery port is provided with the second non return body with non return body spring coupling, first non return body including cup joint the connecting portion in the spring in the pump core, be connected with connecting portion and with pump core seat inner chamber sliding seal's column sealing and set up in sealing outside terminal surface and with pump core seat delivery port assorted bulge, the length of bulge is under the solenoid valve quiescent condition sealing outside terminal surface with the nearest distance of second non return body.

In combination with the content of the specific embodiment of the patent, it can be seen that the assembly gap existing between the pump core base and the pump casing in the existing scheme is usually sealed by a plurality of seal rings, but in use, the conditions of air leakage and water leakage are often generated due to the failure of the seal rings, which is very inconvenient and has a great influence on the service life of the product.

SUMMERY OF THE UTILITY MODEL

To solve the above problems in the prior art, an electromagnetic pump is provided to replace a plurality of seal rings in the prior art and to seal the periphery of the pump core seat and the inner wall of the pump casing to prevent air leakage and water leakage, so as to overcome the technical defects.

The specific technical scheme is as follows:

an electromagnetic pump comprises an electromagnetic driving part and a pump body part which are connected in front and back, wherein the pump body part comprises a pump shell, a pump core seat and a sealing sleeve, the pump core seat is contained in the pump shell, the sealing sleeve is assembled in the pump shell and surrounds the periphery of the pump core seat, and the sealing sleeve is used for sealing an assembly gap between the pump core seat and the inner wall of the pump shell.

Preferably, the whole sealing sleeve is in a cap-shaped structure, the rear end face of the sealing sleeve extends inwards in an annular mode to form a cap edge, and the pump core seat extends into the sealing sleeve from front to back and abuts against the cap edge.

Preferably, the pump body part further comprises a pump core seat sleeve sleeved on the periphery of the front end of the pump core seat, and the pump core seat is limited inside the sealing sleeve by the inner peripheral wall of the sealing sleeve, the brim of the sealing sleeve and the pump core seat sleeve.

Preferably, the brim of the sealing sleeve further extends backwards to form a sealing body, and the rear end face of the sealing body is provided with a groove which is recessed forwards and is opposite to the liquid flow hole in the pump core seat.

The beneficial effects of the above technical scheme are that:

the electromagnetic pump comprises an electromagnetic driving part and a pump body part, the pump body part comprises a pump shell, a pump core seat and a sealing sleeve, the sealing sleeve replaces a plurality of sealing rings adopted in the prior art, sealing between the periphery of the pump core seat and the inner wall of the pump shell can be achieved, the effect of leakage prevention and water leakage is effectively achieved, the sealing effect is better, and the assembly is more convenient.

Drawings

FIG. 1 is a cross-sectional view of an electromagnetic pump of the present invention;

FIG. 2 is a partial exploded view of the pump body of the electromagnetic pump of the present invention;

FIG. 3 is a perspective view of the internal components of the pump body of the electromagnetic pump of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a perspective view of the internal components of the pump body portion of another embodiment of the electromagnetic pump of the present invention;

fig. 6 is a cross-sectional view of fig. 5.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings. And defines the direction from left to right as viewed on the paper in fig. 1 as the direction from front to back in this embodiment.

In the first embodiment, the first step is,

referring to fig. 1 to 4, the electromagnetic pump provided in this embodiment includes an electromagnetic driving portion 5 and a pump body portion connected in front and back, where the pump body portion includes a pump casing 1, a pump core seat 2 accommodated in the pump casing 1, and a sealing sleeve 3 assembled in the pump casing 1 and surrounding the outer periphery of the pump core seat 2, so as to seal an assembly gap between the pump core seat 2 and the inner wall of the pump casing 1.

Based on above-mentioned technical scheme, the electromagnetic pump includes electromagnetic drive part 5 and pump body part, and pump body part includes pump case 1, pump core print seat 2 and seal cover 3, replaces a plurality of sealing washers that adopt among the prior art by seal cover 3, can realize the sealed between 2 peripheries of pump core print seat and 1 inner walls of pump case, effectively plays the effect that leak protection gas leaked, and sealed effect is better, and it is more convenient to assemble.

In a preferred embodiment, the sealing sleeve 3 is in a cap-shaped structure as a whole, the rear end surface of the sealing sleeve 3 extends inwards in an annular manner to form a cap edge, and the pump core seat 2 extends into the sealing sleeve 3 from front to back and is abutted against the cap edge. Further, the pump body part also comprises a pump core seat sleeve 4 sleeved on the periphery of the front end of the pump core seat 2, and the pump core seat 2 is limited inside the sealing sleeve 3 by the inner peripheral wall of the sealing sleeve 3, the brim of the sealing sleeve 3 and the pump core seat sleeve 4.

Referring to fig. 1, the electromagnetic driving portion 5 includes a metal tube, a coil sleeved on the periphery of the metal tube, a coil wrapped around the coil, a magnetizer disposed outside the coil wrapped around the magnetizer, a water inlet magnetic tube disposed in front of the magnetizer, and a working cavity formed in the metal tube, a liquid outlet cavity formed in the rear position of the pump core holder 2 in the pump housing 1, a liquid flow hole formed in the pump core holder 2, the liquid flow hole communicating with the working cavity and the liquid outlet cavity, a liquid inlet communicated with the working cavity formed at the front end of the water inlet magnetic tube, a liquid outlet communicated with the liquid inlet cavity formed at the rear end of the pump housing 1, and a pump core 6 axially movably disposed in the working cavity. And, still be provided with non return body subassembly 9 in pump case 1 for dredge the liquid flow hole, in order to solve the adhesion problem between non return body and the pump core seat 2 that causes when water pressure is not enough and the problem that the liquid flow hole was blockked up to filth. In addition, a seal ring 7 is further embedded between the front end surface of the pump core base 2 and the pump core base sleeve 4, so that the interior of the pump core base 2 is sealed. Simultaneously, for realizing the cooperation of pump core seat 2 and pump core 6, set up open forward's direction chamber in the pump core seat 2, the direction chamber is linked together with the discharge orifice, has the opening of seting up for the direction chamber on the pump core seat cover 4.

In the second embodiment, the first embodiment of the method,

as shown in fig. 5 and 6, the electromagnetic pump provided in this embodiment is substantially the same as that of the first embodiment, except that the brim of the sealing sleeve 3 further extends rearward and forms the sealing body 8, and the rear end surface of the sealing body 8 is formed with a groove recessed forward and disposed opposite to the flow hole in the pump cartridge 2, for cooperation with at least a portion of the check body assembly 9, so that the portion of the check body assembly 9 is moved forward to abut against the groove to jointly seal the rear opening side of the flow hole. Specifically, the groove is a hemispherical groove.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electromagnetic pump comprises an electromagnetic driving part (5) and a pump body part which are connected in a front-back mode, and is characterized in that the pump body part comprises a pump shell (1), a pump core seat (2) accommodated in the pump shell (1), and a sealing sleeve (3) assembled in the pump shell (1) and wrapped on the periphery of the pump core seat (2) and used for sealing an assembly gap between the pump core seat (2) and the inner wall of the pump shell (1).

2. The electromagnetic pump as claimed in claim 1, characterized in that the sealing sleeve (3) is of a cap-shaped structure as a whole, and the rear end face of the sealing sleeve (3) extends inwards and annularly to form a cap rim, and the pump core seat (2) extends into the sealing sleeve (3) from front to back and abuts against the cap rim.

3. The electromagnetic pump according to claim 2, characterized in that the pump body portion further comprises a pump core seat sleeve (4) sleeved on the periphery of the front end of the pump core seat (2), and the pump core seat (2) is limited inside the sealing sleeve (3) by the inner peripheral wall of the sealing sleeve (3), the brim of the sealing sleeve (3) and the pump core seat sleeve (4) together.

4. An electromagnetic pump according to claim 3, characterized in that the brim of the sealing sleeve (3) extends further rearward and constitutes a sealing body (8), and the rear end face of the sealing body (8) is formed with a groove recessed forward and disposed opposite to the flow hole in the pump cartridge seat (2).