阅读说明：本技术 一种应用于电磁泵内的止回体组件以及防堵电磁泵 (Non-return body assembly applied to electromagnetic pump and anti-blocking electromagnetic pump ) 是由 徐建群 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种应用于电磁泵内的止回体组件以及防堵电磁泵,电磁泵包括主体及止回体组件,主体内构成有工作腔、出液腔以及连通两者的液流孔,工作腔内设有泵芯；止回体组件包括：第一止回体,前端具有第一密封体并开设安装孔；第一弹簧,用以促使第一止回体复位；止回构件,至少一部分穿过液流孔,止回构件的两端分别与泵芯及第一止回体相抵,且止回构件的至少一部分伸入安装孔内,用以在泵芯向后动作时推动第一止回体向后移动并露出液流孔的后侧开口。其技术方案能够方便可靠的解决止回体组件与泵芯座之间的粘连问题及污物堵塞液流孔的问题,且整体结构简洁可靠,生产及维护成本大大降低。(The invention discloses a check body assembly applied to an electromagnetic pump and an anti-blocking electromagnetic pump, wherein the electromagnetic pump comprises a main body and the check body assembly, a working cavity, a liquid outlet cavity and a liquid flow hole for communicating the working cavity and the liquid outlet cavity are formed in the main body, and a pump core is arranged in the working cavity; the check body assembly includes: the front end of the first non-return body is provided with a first sealing body and is provided with a mounting hole; the first spring is used for promoting the first check body to reset; and at least one part of the check component penetrates through the liquid flow hole, two ends of the check component respectively abut against the pump core and the first check body, and at least one part of the check component extends into the mounting hole and is used for pushing the first check body to move backwards and expose the rear side opening of the liquid flow hole when the pump core acts backwards. The technical scheme can conveniently and reliably solve the problems of adhesion between the check body assembly and the pump core seat and blockage of the liquid flow hole by dirt, and has the advantages of simple and reliable overall structure and greatly reduced production and maintenance cost.)

1. A non-return body assembly applied to an electromagnetic pump is characterized in that a working cavity and a liquid outlet cavity which are arranged in the front and back and a liquid flow hole for communicating the working cavity and the liquid outlet cavity are formed in the electromagnetic pump, and a pump core (12) is movably arranged in the working cavity; characterized in that, the non-return body subassembly includes:

the first non-return body (1) is axially and movably accommodated in the liquid outlet cavity, the front end of the first non-return body is provided with a first sealing body (5), and the first non-return body (1) is further provided with a mounting hole penetrating to the front end face;

the first spring (3) is arranged in the liquid outlet cavity and used for promoting the first check body (1) to reset, and the first check body (1) closes the rear side opening of the liquid flow hole;

the front end of the non-return component and the pump core (12) form a valve which enables water flow to pass through from front to back in a single direction, the rear end of the non-return component is abutted against the first non-return body (1), at least one part of the non-return component penetrates through the liquid flow hole and stretches into the mounting hole, and the non-return component is used for pushing the first non-return body (1) to move backwards and exposing the rear side opening of the liquid flow hole when the pump core (12) acts backwards.

2. The check body assembly applied to the electromagnetic pump according to claim 1, wherein the check member comprises a second check body (2), and a second spring (4) sleeved on the periphery of the rear part of the second check body (2), at least a part of the second spring (4) extends into the mounting hole, and when the pump core (12) acts backwards, the second check body (2) and/or the second spring (4) pushes the first check body (1) backwards.

3. The check body assembly applied to the electromagnetic pump is characterized in that the outer periphery of the second check body (2) is further provided with a guide structure (7), and the outer edge of the guide structure (7) is matched with the shape of the inner peripheral wall of the liquid flow hole.

4. The check body assembly applied to the electromagnetic pump according to claim 3, wherein the guiding structure (7) is at least one protruding edge which is formed on the periphery of the second check body (2) in a protruding mode, and the protruding edge is annularly and uniformly arranged on the periphery wall of the second check body (2).

5. The check body assembly applied to the electromagnetic pump according to claim 3 or 4, wherein the second spring (4) is a tower spring, a smaller end of the tower spring abuts against a rear end surface of the guide structure (7), and a larger end of the tower spring abuts against an inner bottom surface of the mounting hole.

6. The check body assembly applied to the electromagnetic pump according to claim 1 or 2, wherein the first check body (1) is integrally formed with the first sealing body (5); alternatively, the first and second electrodes may be,

the first sealing body (5) is sleeved at the front end of the first non-return body (1).

7. The check body assembly applied to the electromagnetic pump according to claim 2, wherein a second sealing body (6) is sleeved at the front end of the second check body (2), and the front end of the second sealing body (6) and the pump core (12) form a valve for enabling water to pass through in one direction from front to back.

8. An anti-blocking electromagnetic pump, comprising a main body, characterized in that a check body assembly as claimed in any one of claims 1 to 7 is further arranged in the main body.

9. The electromagnetic anti-blocking pump according to claim 8, wherein the main body comprises a metal tube (8), a coil (9) sleeved on the periphery of the metal tube (8), a coil plastic-coated body (16) coated on the periphery of the coil (9), a magnetizer (10) arranged outside the coil plastic-coated body (16), a pump shell (14) arranged at the rear side of the magnetizer (10), a pump core seat (15) arranged in the pump shell (14), and a water inlet magnetic tube (11) arranged at the front side of the magnetizer (10);

the metal pipe (8) is internally provided with the working cavity, the pump shell (14) is internally provided with the liquid outlet cavity at the rear side of the pump core seat (15), the liquid flow hole is formed in the pump core seat (15) and communicated with the working cavity and the liquid outlet cavity, the front end of the water inlet magnetic pipe (11) is provided with a liquid inlet communicated to the working cavity, and the rear end of the pump shell (14) is provided with a liquid outlet communicated to the liquid inlet cavity.

10. The anti-blocking electromagnetic pump according to claim 9, characterized in that a guide cavity with an opening at the front side is formed in the pump core seat (15), and the outer diameter of the rear part of the pump core (12) is smaller than the outer diameter of the middle part thereof, extends into the guide cavity and abuts against the front end of the second check body (2).

11. The electromagnetic anti-clogging pump according to claim 9, characterized in that the rear end side of said pump housing (14) is open to form said liquid outlet.

Technical Field

The invention relates to the technical field of electromagnetic pumps, in particular to a check body assembly applied to an electromagnetic pump and an anti-blocking 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.

In practical application, as the water used by the electromagnetic pump inevitably contains some impurities, the water outlet of the electromagnetic pump is easy to accumulate some impurities or scales, and particularly under the condition that the water outlet is small, the blockage fault occurs; meanwhile, the non-return body of the electromagnetic pump is easy to adhere to the pump core seat to a certain extent, and is difficult to push away only by water pressure, so that the electromagnetic pump breaks down.

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.

Obviously, this patent can solve the above-mentioned problem, but the check structure is comparatively complicated among them, makes production and maintenance cost higher.

Disclosure of Invention

To solve the above problems in the prior art, a non-return body assembly applied to an electromagnetic pump and an anti-blocking electromagnetic pump are provided, which aim to solve the problems of adhesion between the non-return body assembly and a pump core seat and blockage of a liquid flow hole by dirt, and are convenient and reliable, so as to overcome the technical defects.

The specific technical scheme is as follows:

a non-return body assembly applied to an electromagnetic pump is characterized in that a working cavity and a liquid outlet cavity which are arranged in front and back and a liquid flow hole for communicating the working cavity and the liquid outlet cavity are formed in the electromagnetic pump, and a pump core is movably arranged in the working cavity; the check body assembly includes:

the first non-return body is axially and movably accommodated in the liquid outlet cavity, the front end of the first non-return body is provided with a first sealing body, and the first non-return body is also provided with a mounting hole penetrating to the front end face;

the first spring is arranged in the liquid outlet cavity and used for promoting the first check body to reset, and the first check body is used for closing the rear opening of the liquid flow hole;

the front end of the non-return component and the pump core form a valve which enables water flow to pass through from front to back in a single direction, the rear end of the non-return component is abutted against the first non-return body, at least one part of the non-return component penetrates through the liquid flow hole and extends into the mounting hole, and the non-return component is used for pushing the first non-return body to move backwards and exposing the rear opening of the liquid flow hole when the pump core acts backwards.

Preferably, the check member includes a second check body, and a second spring sleeved on the periphery of the rear portion of the second check body, and at least a portion of the second spring extends into the mounting hole, and when the pump core moves backward, the second check body and/or the second spring pushes the first check body backward.

Preferably, the second check body is provided with a guide structure on the periphery, and the outer edge of the guide structure is matched with the shape of the inner peripheral wall of the liquid flow hole.

Preferably, the guide structure is at least one convex edge which is convexly formed on the periphery of the second check body, and the convex edge is annularly and uniformly arranged on the peripheral wall of the second check body.

Preferably, the second spring is a tower spring, a smaller end of the tower spring abuts against the rear end face of the guide structure, and a larger end of the tower spring abuts against the inner bottom face of the mounting hole.

Preferably, the first check body and the first sealing body are integrally formed; alternatively, the first and second electrodes may be,

the first sealing body is sleeved at the front end of the first non-return body.

Preferably, the front end of the second check body is sleeved with the second sealing body, and the front end of the second sealing body and the pump core form a valve which enables water flow to pass through from front to back in a single direction.

The invention also provides an anti-blocking electromagnetic pump which comprises a main body, wherein the main body is internally provided with the check body assembly as claimed in any one of the claims.

Preferably, the main body comprises a metal pipe, a coil sleeved on the periphery of the metal pipe, a coil plastic-coated body coated on the periphery of the coil, a magnetizer arranged outside the coil plastic-coated body, a pump shell arranged on the rear side of the magnetizer, a pump core seat arranged in the pump shell, and a water inlet magnetic pipe arranged on the front side of the magnetizer;

the metal tube forms a working cavity, a liquid outlet cavity is formed in the pump shell at the rear side of the pump core seat, a liquid flow hole is formed in the pump core seat and communicated with the working cavity and the liquid outlet cavity, a liquid inlet communicated to the working cavity is formed at the front end of the water inlet magnetic tube, and a liquid outlet communicated to the liquid inlet cavity is formed at the rear end of the pump shell.

Preferably, a guide cavity with an opening at the front side is formed in the pump core seat, and the outer diameter of the rear part of the pump core is smaller than that of the middle part of the pump core, extends into the guide cavity and abuts against the front end of the second check body.

Preferably, the rear end side of the pump shell is opened to form a liquid outlet.

The beneficial effects of the above technical scheme are that:

(1) the check body assembly applied to the electromagnetic pump comprises a first check body, a first sealing body, a first spring and a check member, can conveniently and reliably solve the problems of adhesion between the check body assembly and a pump core seat and blockage of a liquid flow hole by dirt, and has a simple and reliable integral structure, and the production and maintenance cost is greatly reduced;

(2) in preventing stifled electromagnetic pump, form direction chamber and pump core seat rear end in the pump core seat and constitute half spherical groove, can effectively play the guide effect, prevent that pump core, first non return body and second non return body from moving the in-process radial skew.

Drawings

FIG. 1 is a perspective view of a check body assembly for use in an electromagnetic pump in accordance with the present invention;

FIG. 2 is a cross-sectional view of a check body assembly for use in an electromagnetic pump in accordance with the present invention;

FIG. 3 is a perspective view of a first check body portion of a check body assembly for use in a solenoid pump in accordance with the present invention; a

FIG. 4 is a perspective view of the anti-clogging electromagnetic pump of the present invention;

FIG. 5 is an exploded view of the anti-clogging electromagnetic pump of the present invention;

fig. 6 is a sectional view of the anti-clogging electromagnetic pump of the present invention.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings. And defines the direction from left to right as viewed on the paper in fig. 3 as the direction from front to back in the present invention.