阅读说明：本技术 一种防堵式电磁泵 (Anti-blocking electromagnetic pump ) 是由 徐建群 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种防堵式电磁泵,包括：主体,内部构成工作腔和出液腔、以及连通两者的液流孔,工作腔内具有泵芯及泵芯座,泵芯座中开设形成液流孔；密封体,至少一部分设置于泵芯座的后端面且围绕液流孔；第一止回体,开设有贯穿至前端面的安装孔；第一弹簧,用以促使第一止回体复位,并由第一止回体及密封体共同封闭液流孔的后侧开口；止回构件,至少部分穿过液流孔且伸入安装孔内,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 an anti-blocking electromagnetic pump, which comprises: the main body is internally provided with a working cavity, a liquid outlet cavity and a liquid flow hole for communicating the working cavity with the liquid outlet cavity, the working cavity is internally provided with a pump core and a pump core seat, and the pump core seat is internally provided with the liquid flow hole; the sealing body is at least partially arranged on the rear end surface of the pump core seat and surrounds the liquid flow hole; the first check body is provided with a mounting hole penetrating to the front end face; the first spring is used for promoting the first check body to reset, and the first check body and the sealing body jointly close the rear opening of the liquid flow hole; and the check component at least partially penetrates through the liquid flow hole and extends into the mounting hole so as to push the first check body to move backwards and expose the rear 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 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. The utility model provides a prevent stifled formula electromagnetic pump which characterized in that includes:

the liquid pump comprises a main body (1), a working cavity, a liquid outlet cavity and a liquid flow hole, wherein the working cavity and the liquid outlet cavity are arranged in front and back, the liquid flow hole is communicated with the working cavity and the liquid outlet cavity, a pump core (2) and a pump core seat (3) are oppositely arranged in the working cavity, and the liquid flow hole is formed in the pump core seat (3);

the sealing body (14) is arranged in the main body (1), and at least one part of the sealing body (14) is arranged on the rear end face of the pump core seat (3) and surrounds the liquid flow hole;

the first non-return body (4) is axially and movably accommodated in the liquid outlet cavity, and a mounting hole penetrating to the front end face is formed in the first non-return body (4);

the first spring (5) is arranged in the liquid outlet cavity and used for promoting the first check body (4) to reset, and the rear side opening of the liquid outlet hole is sealed by the first check body (4) and the sealing body (14) together;

the front end of the non-return component and the pump core (2) 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 (4), 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 (4) to move backwards and exposing the rear opening of the liquid flow hole when the pump core (2) acts backwards.

2. The electromagnetic anti-blocking pump according to claim 1, wherein the check member comprises a second check body (6) and a second spring (7) sleeved on the periphery of the rear portion of the second check body (6), at least a part of the second spring (7) extends into the mounting hole, and when the pump core (2) acts backwards, the first check body (4) is pushed backwards by the second check body (6) and/or the second spring (7).

3. The electromagnetic anti-blocking pump according to claim 2, characterized in that the second check body (6) further comprises a guide structure (17) at the outer periphery, and the outer edge of the guide structure (17) is matched with the shape of the inner peripheral wall of the liquid flow hole.

4. The electromagnetic anti-blocking pump according to claim 3, characterized in that the guiding structure (17) is at least one protruding edge formed on the periphery of the second check body (6) in a protruding manner, and the protruding edge is annularly and uniformly arranged on the outer peripheral wall of the second check body (6).

5. The anti-blocking electromagnetic pump according to claim 1, wherein the main body (1) comprises a metal tube (8), a coil (9) sleeved on the periphery of the metal tube (8), a coil plastic-coated body (10) coated on the periphery of the coil (9), a magnetizer (11) arranged outside the coil plastic-coated body (10), a pump shell (15) arranged at the rear side of the magnetizer (11), a pump core seat (3) arranged in the pump shell (15), and a water inlet magnetic tube (12) arranged at the front side of the magnetizer (11);

constitute in tubular metal resonator (8) the working chamber, in pump case (15) in the rear side position of pump core seat (3) constitutes to have go out the sap cavity, the liquid flow hole set up form in pump core seat (3) and communicate working chamber and play sap cavity, the front end of intaking magnetic tube (12) constitutes to have the intercommunication to the inlet of working chamber, pump case (15) rear end constitutes to have the intercommunication to the liquid outlet in feed liquor chamber.

6. The anti-blocking electromagnetic pump according to claim 2, characterized in that a guide cavity with an open front side is formed in the pump core seat (3), and the outer diameter of the rear part of the pump core (2) 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 (6).

7. The electromagnetic anti-clogging pump according to claim 5, characterized in that the rear end side of the pump housing (15) is open to form the liquid outlet.

Technical Field

The invention relates to the technical field of electromagnetic pumps, in particular to 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

In order to achieve the above object, the present invention adopts a technical scheme that, firstly, an anti-blocking electromagnetic pump capable of conveniently and reliably solving the adhesion problem between the check body assembly and the pump core seat and the problem that the sewage blocks the liquid flow hole is provided, so as to overcome the technical defects.

The specific technical scheme is as follows:

an anti-clogging electromagnetic pump comprising:

the main body is internally provided with a working cavity, a liquid outlet cavity and a liquid flow hole for communicating the working cavity and the liquid outlet cavity which are arranged in front and back, a pump core and a pump core seat which are oppositely arranged are arranged in the working cavity, and the pump core seat is internally provided with the liquid flow hole;

the sealing body is arranged in the main body, and at least one part of the sealing body is arranged on the rear end face of the pump core seat and surrounds the liquid flow hole;

the first check body is axially and movably accommodated in the liquid outlet cavity, and is 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 and the sealing body jointly seal 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 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, liquid flow holes are 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:

the anti-blocking electromagnetic pump comprises a main body, a sealing body, a first check body, a first spring and a check component, can conveniently and reliably solve the problem that the check body and the pump core seat cannot be solved only by water pressure and the problem that liquid flow holes are blocked by dirt, and has the advantages of simple and reliable integral structure and greatly reduced production and maintenance cost.

Drawings

FIG. 1 is a perspective view of the anti-blocking electromagnetic pump of the present invention;

FIG. 2 is an exploded view of the anti-blocking electromagnetic pump of the present invention;

fig. 3 is a sectional view of the anti-blocking type electromagnetic pump of the present invention.

FIG. 4 is a perspective view of a check body assembly in the anti-blocking electromagnetic pump of the present invention;

fig. 5 is a sectional view of a check body assembly in the anti-blocking type electromagnetic pump according to 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 this embodiment.

Referring to fig. 1 to 5, the anti-blocking electromagnetic pump according to the present embodiment includes:

the main body 1 is internally provided with 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, the working cavity is internally provided with a pump core 2 and a pump core seat 3 which are oppositely arranged, and the liquid flow hole is formed in the pump core seat 3;

a seal body 14 installed in the main body 1, at least a part of the seal body 14 being disposed on a rear end surface of the pump cartridge holder 3 and surrounding the liquid flow hole;

the first non-return body 4 is axially and movably accommodated in the liquid outlet cavity, and a mounting hole penetrating to the front end face is formed in the first non-return body 4;

the first spring 5 is arranged in the liquid outlet cavity and used for promoting the first check body 4 to reset, and the rear opening of the liquid flow hole is sealed by the first check body 4 and the sealing body 14 together;

the front end of the non-return component and the pump core 2 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 4, 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 4 to move backwards and exposing the rear side opening of the liquid flow hole when the pump core 2 acts backwards.

In a specific application, the pump core 2 moves in a reciprocating manner in the working cavity, pushes the second check body to move backwards when moving backwards, pushes the first check body 4 to move backwards through the check member, simultaneously relieves the closed state of the rear opening of the liquid flow hole, and forcibly pushes the working cavity and the blockage in the liquid flow hole to the liquid outlet cavity through the action of the check member penetrating through the liquid flow hole, so that the problems of adhesion between the first check body 4 and the pump core seat 3 and blockage of the liquid flow hole by dirt are solved; when the pump core 2 moves forwards, the check member moves forwards at the same time, the first spring 5 in a compressed state pushes the first check body 4 forwards, the rear side opening of the liquid flow hole is closed by the first check body 4 and the sealing body 14 together, the working cavity is vacuumized, and then the next water pumping movement is prepared, and the first check body 4, the first spring 5 and the check member form the check body assembly in the embodiment together.

Based on above-mentioned technical scheme, prevent stifled formula electromagnetic pump includes main part 1, seal 14, first non return body 4, first spring 5 and non return component, can convenient and reliable solution only rely on the adhesion problem between the non return body that water pressure can't solve and pump core seat 3 and the problem that the liquid flow hole was blockked up to filth, and overall structure is succinct reliable, production and maintenance cost greatly reduced.

In a preferred embodiment, as shown in fig. 4 and 5 in particular, the check member comprises a second check body 6, a second spring 7 sleeved on the rear periphery of the second check body 6, at least a part of the second spring 7 extends into the mounting hole, and when the pump core 2 acts backwards, the first check body 4 is pushed backwards by the second check body 6 and/or the second spring 7.

In a particular application, there are two cases, the first being: the rear end of the second check body 6 is long enough to abut against the inner bottom surface of the mounting hole, namely the second check body 6 can push the first check body 4, the second check body 6 pushes the first check body 4 to move backwards, and at the moment, the second spring 7 mainly plays a role in guiding the second check body 6; the second method is as follows: the rear end length of second non return body 6 is not enough to support and lean on the interior bottom surface to the mounting hole, need pass through second spring 7 transmission thrust to first non return body 4 to promote first non return body 4 backward action jointly, and at this moment, second spring 7 plays the effect to the direction of second non return body 6 and transmission power, in addition, under the circumstances between the above-mentioned two, still include to push the circumstances of first non return body 4 and the synchronous transmission thrust of first non return body 4 of second spring 7 by second non return body 6, nevertheless no matter any kind of circumstances, when pump core 2 moves forward, second spring 7 can both provide the thrust for the reset that moves forward to second non return body 6.

As a further preferred embodiment, the outer periphery of the second check body 6 is further provided with a guide structure 17, and the outer edge of the guide structure 17 is matched with the shape of the inner peripheral wall of the liquid flow hole. Specifically, the maximum outer diameter of the guide structure 17 is not greater than the minimum inner diameter of the flow hole, and in the present embodiment, the flow hole is a circular hole, but is not limited thereto. Further, as shown in fig. 4 in particular, the guiding structure 17 is at least one protruding edge formed convexly on the outer periphery of the second check body 6, and the protruding edge is annularly and uniformly arranged on the outer peripheral wall of the second check body 6.

In the specific application, the front end of the second check body 6 at least partially extends into the inner hole of the pump core 2 to close the rear opening of the inner hole of the pump core 2, and when the pump core 2 moves forwards, the second check body firstly moves forwards along with the pump core 2 under the action of negative pressure, and after the second check body moves for a section of path, the second check body breaks away backwards under the action of water pressure in the pump core 2, so that liquid flow in the inner hole of the pump core 2 flows into the working cavity.

It should be noted that, as shown in fig. 4 and 5, the second check body 6 is rod-shaped as a whole, and the first check body 4 is cylindrical as a whole, and the overall shape is similar to the structure adopted in the prior art, so that the detailed description is omitted here.

In a preferred embodiment, as shown in fig. 2 and 3 in particular, the main body 1 includes a metal tube 8, a coil 9 sleeved on the periphery of the metal tube 8, a coil plastic-coated 10 wrapped on the periphery of the coil 9, a magnetic conductor 11 disposed outside the coil plastic-coated 10, a pump casing 15 disposed behind the magnetic conductor 11, a pump core holder 3 installed in the pump casing 15, and a water inlet magnetic tube 12 disposed in front of the magnetic conductor 11, and the metal tube 8 forms the working chamber, the pump casing 15 forms the liquid outlet chamber at the rear of the pump core holder 3, the liquid outlet hole is formed in the pump core holder 3 and communicates with the working chamber and the liquid outlet chamber, the front end of the water inlet magnetic tube 12 forms a liquid inlet communicating with the working chamber, and the rear end of the pump casing 15 forms a liquid outlet communicating with the liquid inlet to the chamber. Further, the rear end side of the pump housing 15 is opened to form a liquid outlet.

As a further preferred embodiment, the rear end of the water inlet magnetic pipe 12 extends into the working chamber and is arranged opposite to the front end of the pump core 2, and a third spring is arranged between the rear end of the water inlet magnetic pipe 12 and the front end of the pump core 2 to assist the action of pushing the pump core 2 to move backwards. It is worth pointing out that the alternating current generated by the coil 9 electrically connected to the external power source causes the pump core 2 to reciprocate in the working chamber. Furthermore, a guide cavity with an opening at the front side is formed in the pump core seat 3, the outer diameter of the rear part of the pump core 2 is smaller than that of the middle part of the pump core, the rear part of the pump core extends into the guide cavity and abuts against the front end of the second check body 6, and the guide effect on the reciprocating action of the pump core 2 can be achieved. Furthermore, a hemispherical groove is formed in the rear end surface of the sealing body 14 in a concave manner, and the front end structure of the first check body 4 is matched with the shape of the hemispherical groove to play a guiding role.

In addition, for the purpose of sealing the inside of the main body 1, sealing members are further embedded or sleeved at a plurality of positions between the pump core 2 and the pump core seat 3, on the periphery of the water inlet magnetic pipe 12, and the like, and the front end and the rear end of the coil 9 are further provided with a framework of the coil 9, and the main body 1 is further provided with a pin 16 electrically connected with the coil 9 for inputting power, which are conventional means in the art, and therefore, the description thereof is omitted.

In a further preferred embodiment, a sealing sleeve is further disposed around the outer periphery of the pump core seat 3, and the sealing sleeve is embedded in the pump casing 15, and the sealing body 14 is a part of the sealing sleeve. Adopt the seal cover to replace among the prior art a plurality of sealing washers to realize the outside seal structure of pump core seat 3, can effectively play the effect that leak protection gas leaked on the one hand, sealed effect is better, and on the other hand assembly is more convenient.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.