CN211819887U - Pump core seat and electromagnetic diaphragm pump - Google Patents

Abstract

The utility model discloses a pump core seat and electromagnetic diaphragm pump that claim, wherein the pump core seat includes the pedestal, seted up inlet opening and apopore on the pedestal; the water inlet hole comprises an outer hole part, a first necking part, a second necking part and an inner hole part which are sequentially communicated, the inner hole part and the second necking part are transited by a step surface, and the plane where the step surface is located is perpendicular to the center line of the water inlet hole; wherein the inner bore portion has a bore diameter less than one-half of the bore diameter of the outer bore portion. The utility model discloses an in-process of the outward discharge liquid of outlet for pump core seat can reduce the leading-in liquid to the inlet opening, and then has the liquid efficiency that improves this pump core seat during operation.

Description

Pump core seat and electromagnetic diaphragm pump

Technical Field

The utility model belongs to the technical field of the pump core seat is relevant, especially, relate to a pump core seat and electromagnetic diaphragm pump.

Background

The pump core seat is usually applied to an electromagnetic diaphragm pump and is used for being matched with a diaphragm, so that the diaphragm is driven by the pump core to move relative to the pump core seat, liquid inlet of a water inlet hole in the pump core seat can be realized by utilizing pressure difference, liquid sucked between the pump core seat and the diaphragm is outwards discharged through the pump core seat under the pushing of the diaphragm, and the control on medium flow is realized when the electromagnetic diaphragm pump works.

At present, the aperture of a water inlet hole on the existing pump core seat is large, so that when a diaphragm is used for pushing liquid between the pump core seat and the diaphragm, a liquid part can be reversely led into the water inlet hole, and the water outlet efficiency of a water outlet hole on the pump core seat is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a pump cartridge and an electromagnetic diaphragm pump for solving the technical problems in the prior art.

The pump core seat comprises a seat body, wherein a water inlet hole and a water outlet hole are formed in the seat body; the water inlet hole comprises an outer hole part, a first necking part, a second necking part and an inner hole part which are sequentially communicated, the inner hole part and the second necking part are transited by a step surface, and the plane where the step surface is located is perpendicular to the center line of the water inlet hole; wherein the inner bore portion has a bore diameter less than one-half of the bore diameter of the outer bore portion.

As a preferable aspect of the present invention, the throat surface of the first throat portion is an arc surface of an outer convex shape; and/or the necking surface of the second necking part is an inward concave arc surface.

In a preferred embodiment of the present invention, the inner hole portion has a diameter greater than one fifth and smaller than one fourth of the diameter of the outer hole portion.

In a preferred embodiment of the present invention, the inner hole portion has a half diameter of the water outlet hole.

As a preferred embodiment of the present invention, the included angle formed by the central line of the water outlet hole and the central line of the pump core seat is 45 °.

As the preferred embodiment of the present invention, the base body is provided with an inlet channel at the opening of the inner hole, the cross section of the inlet channel is designed to be circular, and the aperture of the cross section of the inlet channel is greater than the aperture of the inner hole.

As the preferred scheme of the utility model, the pedestal is in the basin has been seted up out to the open position of apopore, the cell wall of basin is established to circular-arc.

As the preferred scheme of the utility model, the pedestal is in the inlet opening with position between the apopore is equipped with the strengthening rib strip.

The utility model also discloses an electromagnetic diaphragm pump, including the magnetism proof pipe, the pump body fixedly connected to the magnetism proof pipe, the pump core movably arranged in the magnetism proof pipe, the pump core spring arranged between the pump core and the magnetism proof pipe, the diaphragm fixedly connected to the pump core, and the pump core seat matched with the diaphragm; a winding coil is sleeved on the magnetism isolating pipe, and the winding coil can generate a magnetic field for driving the pump core to compress the pump core spring when being electrified; the pump core seat is any one of the pump core seats.

As the utility model discloses an optimal scheme, the inlet position of inlet opening is equipped with first check head on the pump core seat, and the exit position of apopore is equipped with second check head.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model provides a pump core seat and electromagnetic diaphragm pump utilizes first throat portion and second throat portion undergauge with the aperture of inlet opening for this pump core seat is with the in-process of outlet opening outwards discharging liquid, can reduce the leading-in liquid to the inlet opening, and then has the play liquid efficiency that improves this pump core seat during operation, makes the electromagnetic diaphragm pump who is applied to this pump core seat, not only is convenient for outwards draw water, and flow control's stability is good moreover.

Drawings

Fig. 1 is a sectional view of an electromagnetic diaphragm pump according to an embodiment of the present invention.

Fig. 2 is a top view of a pump cartridge seat in the electromagnetic diaphragm pump of fig. 1.

Fig. 3 is a cross-sectional view of a pump cartridge seat in the electromagnetic diaphragm pump of fig. 1.

Fig. 4 is a cross-sectional view of the electromagnetic diaphragm pump of fig. 1 with a break-back.

10, a magnetism isolating pipe; 11. a winding coil; 20. a pump body; 30. a pump core; 31. a pump core spring; 40. a membrane; 50. a pump cartridge seat; 51. a water inlet hole; 511. an outer hole portion; 512. a first choke portion; 513. a second choke portion; 514. an inner hole portion; 515. a step surface; 52. a water outlet hole; 53. a water inlet groove; 54. a water outlet groove; 55. reinforcing ribs; 101. a first check head; 102. a second check head; 110. an installation part; 120. a cone head portion; 121. a first conical surface; 122. a second tapered surface; 123. a first inner surface; 124. a second inner surface; 130. and (6) slotting.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, an electromagnetic diaphragm pump according to an embodiment of the present invention includes a magnetic isolation tube 10, a pump body 20 fixedly connected to the magnetic isolation tube 10, a pump core 30 movably disposed in the magnetic isolation tube 10, a pump core spring 31 disposed between the pump core 30 and the magnetic isolation tube 10, a diaphragm 40 fixedly connected to the pump core 30, and a pump core seat 50 engaged with the diaphragm 40.

A winding coil 11 is sleeved on the magnetism isolating pipe 10, and the winding coil 11 is electrified to generate a magnetic field for driving the pump core 30 to compress the pump core spring 31; the pump core seat 50 is provided with a water inlet 51 and a water outlet 52, a first check head 101 is arranged at an inlet of the water inlet 51, and a second check head 102 is arranged at an outlet of the water outlet 52, so that the pump core seat 50 is communicated with the water inlet 51 and the water outlet 61 in a one-way mode.

As can be seen from the above, when the electromagnetic diaphragm pump of the present embodiment operates, the winding coil 11 is energized to generate a magnetic field and drive the pump core 30 to compress the pump core spring 31, the movement of the pump core 30 can drive the diaphragm 40 to disengage from the pump core seat 50, and a negative pressure is formed between the diaphragm 40 and the pump core seat 50, so that external liquid can be sucked into a position between the diaphragm 40 and the pump core seat 50 through the first check head 101 and the water inlet 51; after the winding coil 11 is powered off, the pump core spring 31 elastically resets due to the loss of the function of the pump core 30 and pushes the pump core 30 to move, so as to drive the diaphragm 40 on the pump core 30 to push the liquid and discharge the liquid outwards through the water outlet 52 of the pump core seat 50 and the second check head 102, thereby realizing the function of controlling the liquid flow during the operation of the electromagnetic diaphragm pump.

In the present embodiment, the first check head 101 and/or the second check head 102 of the present embodiment are the check heads shown in fig. 4, and preferably, both the first check head 101 and the second check head 102 are the check heads shown in fig. 4. Specifically, the non-return head includes installation department 110, and connect in conical head portion 120 of installation department 110, installation department 110 with conical head portion 120 cooperation and form a appearance chamber 100 jointly, wherein conical head portion 120 is in deviating from one side tip of installation department 110 has seted up slot 130, and arranges in liquid in appearance chamber 100 can pass through slot 130 outwards conducts.

The slit 130 of the present embodiment is disposed at a position where the first inner surface 123 and the second inner surface 124 cross and overlap, and the check head may be a rubber or a silicone piece according to a use requirement.

In this embodiment, the tapered head portion 120 has a first tapered surface 121 and a second tapered surface 122 located at two opposite sides of the slit 130, and the thickness of the tapered head portion 120 at the position of the first tapered surface 121 and/or the thickness of the tapered head portion at the position of the second tapered surface 122 gradually increases from a direction away from the slit 130. In the conical head portion 120 of the present embodiment, both the first tapered surface 121 and the second tapered surface 122 have a wall thickness that gradually increases from the direction away from the slit 130.

Specifically, the inner surface of the conical head portion 120 corresponding to the first conical surface 121 is defined as a first inner surface 123, the inner surface corresponding to the second conical surface 122 is defined as a second inner surface 124, and an included angle formed by the first conical surface 121 and the second conical surface 122 is greater than an included angle formed by the first inner surface 123 and the second inner surface 124, so that the wall thickness of the conical head portion 120 on the check head of the present embodiment at the position of the first conical surface 121 and/or the wall thickness of the conical surface 122 at the position of the second conical surface gradually increases from a direction away from the slit 130.

In this embodiment, the first tapered surface 121 and/or the second tapered surface 122 are disposed to be outwardly inclined from the direction away from the slit 130 with respect to the tapered end portion 120. That is, the conical portion 120 of the present embodiment can be implemented by changing the plane where the first conical surface 121 and/or the second conical surface 122 are located, based on the original structure of the check head. In the check head of the present embodiment, the angle at which the first tapered surface 121 is outwardly inclined with respect to the tapered head portion 120 and the angle at which the second tapered surface 122 is outwardly inclined with respect to the tapered head portion 120 may be equal to or different from each other according to the use requirement.

It can be understood that, since the check head of the present embodiment is applied to the electromagnetic diaphragm pump, the first tapered surface 121 and the second tapered surface 122 of the check head upper tapered portion 120 directly contact with the external liquid and generate the pressure to the first tapered surface 121 and the second tapered surface 122, and under the component of the pressure, the slit 130 on the conical head part 120 can be closed more, in the present embodiment, by changing the plane of the first tapered surface 121 and/or the second tapered surface 122, the direction of the pressure generated when the external liquid contacts the first tapered surface 121 and/or the second tapered surface 122 can be adjusted, thereby causing a greater component of force to close the slit 130 due to the pressure acting on the first tapered surface 121 and the second tapered surface 122, therefore, the stability of the opening 130 on the check head is improved when the opening is closed, so that the check head is ensured to be conducted in one direction.

Alternatively, in the present embodiment, the first inner surface 123 and/or the second inner surface 120 may be provided to be inwardly inclined with respect to the tapered end portion 120 from a direction away from the slit 130. That is, the conical head portion 120 of the present embodiment can be implemented by changing the plane of the first inner surface 123 and/or the second inner surface 124 based on the original structure of the check head. The angle at which the first inner surface 123 is inwardly inclined with respect to the countersunk portion 120 and the angle at which the second inner surface 124 is inwardly inclined with respect to the countersunk portion 120 may be equal to or different from each other according to the requirements of use.

It can be understood that, since the check head of the present embodiment is applied to an electromagnetic diaphragm pump, the liquid in the check head can act on the first inner surface 123 and the second inner surface 124 of the conical head portion 120, and the slit 130 can be opened by pushing the first inner surface 123 and the second inner surface 124, but the present embodiment can adjust the direction of the pressure generated when the liquid contacts the first inner surface 123 and/or the second inner surface 124 by changing the plane of the first inner surface 123 and/or the second inner surface 124, so that the component force of the pressure acting on the first inner surface 123 and the second inner surface 124 to open the slit 130 is larger, thereby facilitating the opening of the slit 130 on the check head.

In the present embodiment, the first inner surface 123 and/or the second inner surface 120 may be inclined inward with respect to the tapered end portion 120 from a direction away from the slit 130, and the first inner surface 123 and/or the second inner surface 124 may be inclined inward with respect to the tapered end portion 120 from a direction away from the slit 130. Therefore, the stability of the opening seam 130 on the check head is high when the check head is closed, and the check head is convenient to open.

In the present embodiment, the term "outwardly-obliquely-protruding" specifically means that the first tapered surface 121, the second tapered surface 122, the first inner surface 123, and/or the second inner surface 124 of the present embodiment are obliquely outwardly protruded with respect to the corresponding first tapered surface, second tapered surface, first inner surface, and/or second inner surface of the conventional check head.

Referring to fig. 2 and 3, the pump core seat 50 of the present embodiment includes a seat body 501, and the water inlet 51 and the water outlet 52 are disposed on the seat body 501. The water inlet 51 of the pump core holder 50 of the present embodiment includes an outer hole 511, a first throat 512, a second throat 513, and an inner hole 514, which are sequentially connected; the inner hole part 514 and the second necking part 513 are transited by a step surface 515, and the plane of the step surface 515 is perpendicular to the central line of the water inlet 51; the inner hole portion 514 has a diameter smaller than one-half of the diameter of the outer hole portion 511. That is, the diameter of the water inlet hole on the pump core holder 50 of the present embodiment is reduced by the first and second reduced portions 512 and 513, so that the application of the pump core holder 50 to the electromagnetic diaphragm pump facilitates the external liquid to be introduced into the position between the pump core holder 50 and the diaphragm 40 through the water inlet hole 51; and when this electromagnetic diaphragm pump outwards discharges liquid, because the aperture of interior hole portion 514 is little, can reduce when outwards discharging liquid the volume of leading-in to the liquid of inlet opening 51, and then have the play liquid efficiency that improves this pump core seat 50 during operation for the electromagnetic diaphragm pump who is applied to this pump core seat 50 not only is convenient for outwards draw water, and flow control's stability is good moreover.

Wherein, the necking surface of the first necking part 512 is an arc surface which is convex outward; and/or the necking surface of the second necking part 513 is an inward concave arc surface to guide the liquid in the liquid inlet pipe (not shown) connected and communicated with the pump core seat 50 to be guided to the water inlet hole 51 through the check head.

Specifically, the inner hole 514 of the present embodiment has a diameter greater than one fifth of the diameter of the outer hole 511 and smaller than one fourth of the diameter of the outer hole 511. It should be noted that, the ratio between the aperture of the inner hole portion 514 and the aperture of the outer hole portion 511 may be specifically set according to the usage requirement of the electromagnetic diaphragm pump, and only the flow requirement of the electromagnetic diaphragm pump needs to be satisfied.

The diameter of the inner hole 514 of the present embodiment is one half of the diameter of the water outlet hole 52, so as to increase the diameter of the water outlet hole 52 on the pump core seat 50 of the present embodiment, so that the pump core seat 50 is applied to an electromagnetic diaphragm pump, and the liquid placed between the pump core seat 50 and the diaphragm 40 can be rapidly discharged from the water outlet hole 52 of the pump core seat 50 by the push of the diaphragm 40, thereby increasing the water outlet of the electromagnetic diaphragm pump.

Further, an included angle formed by the center line of the water outlet hole 52 and the center line of the pump cartridge seat 50 is 45 °, so that the inclination angle of the water outlet hole 52 relative to the pump cartridge seat 50 is smaller, thereby reducing resistance of the wall of the water outlet hole 52 when the liquid passes through the water outlet hole 52 on the pump cartridge seat 50, and further facilitating the liquid between the pump cartridge seat 50 and the diaphragm 40 to be discharged outwards through the water outlet hole 52 of the pump cartridge seat 50.

As a preferred embodiment of the present invention, the upper seat body 501 of the pump core seat 50 of the present embodiment is provided with the reinforcing ribs 55 at the positions between the water inlet holes 51 and the water outlet holes 52, so as to reduce the shrinkage deformation of the pump core seat 50 caused by the non-uniform injection molding material when the whole pump core seat 50 is formed by injection molding, and ensure the flatness of the pump core seat 50.

In addition, the seat body 501 is provided with a water inlet groove 53 at an opening position of the inner hole 514, a cross section of the water inlet groove 53 is circular, and an aperture of the cross section of the water inlet groove 53 is larger than an aperture of the inner hole 514, so that the liquid introduced from the water inlet 51 can enter a position between the pump core seat 50 and the diaphragm 40. The seat body 501 is provided with a water outlet groove 54 at the opening position of the water outlet hole 52, and the wall of the water outlet groove 54 is arc-shaped, so that the liquid between the pump core seat 50 and the diaphragm 40 flows to the water outlet hole 52 and is discharged from the water outlet hole 52.

As can be seen from the above, the pump core seat 50 of the electromagnetic diaphragm pump of the present embodiment, and the first check head 101 and the second check head 102 respectively used for matching with the water inlet hole 51 and the water outlet hole 52 on the pump core seat 50 are specifically improved in structure, and have corresponding beneficial effects. It should be noted that, those skilled in the art can select the check head and the pump core seat 50 with improved structure according to the use requirement, and the check head and the pump core seat are used together with the conventional check head and the conventional pump core seat, which will not be described herein.

To sum up, the utility model provides a pump core seat and electromagnetic diaphragm pump utilizes first throat portion and second throat portion undergauge with the aperture of inlet opening for this pump core seat is with the in-process of outlet opening outwards discharging liquid, can reduce the leading-in liquid to the inlet opening, and then has the play liquid efficiency that improves this pump core seat during operation, makes and is applied to the electromagnetic diaphragm pump of this pump core seat, not only is convenient for outwards draw water, and flow control's stability is good moreover.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A pump core seat comprises a seat body, wherein a water inlet hole and a water outlet hole are formed in the seat body; the method is characterized in that: the water inlet hole comprises an outer hole part, a first necking part, a second necking part and an inner hole part which are sequentially communicated, the inner hole part and the second necking part are transited by a step surface, and the plane where the step surface is located is perpendicular to the center line of the water inlet hole; wherein the inner bore portion has a bore diameter less than one-half of the bore diameter of the outer bore portion.

2. The pump cartridge of claim 1, wherein: the necking surface of the first necking part is set to be an arc surface which is convex outwards; and/or the necking surface of the second necking part is an inward concave arc surface.

3. The pump cartridge of claim 1, wherein: the aperture of the inner hole part is larger than one fifth of the aperture of the outer hole part and smaller than one fourth of the aperture of the outer hole part.

4. The pump cartridge of claim 1, wherein: the aperture of the inner hole part is half of that of the water outlet hole.

5. The pump cartridge of claim 1, wherein: the central line of the water outlet hole and the central line of the pump core seat form an included angle of 45 degrees.

6. The pump cartridge of claim 1, wherein: the base body is provided with a water inlet groove at the opening position of the inner hole part, the cross section of the water inlet groove is circular, and the aperture of the cross section of the water inlet groove is larger than that of the inner hole part.

7. The pump cartridge of claim 1, wherein: the seat body is provided with a water outlet groove at the opening position of the water outlet hole, and the groove wall of the water outlet groove is arc-shaped.

8. The pump cartridge of claim 1, wherein: and reinforcing ribs are arranged at the position of the seat body between the water inlet hole and the water outlet hole.

9. An electromagnetic diaphragm pump comprises a magnetism isolating pipe, a pump body fixedly connected to the magnetism isolating pipe, a pump core movably arranged in the magnetism isolating pipe, a pump core spring arranged between the pump core and the magnetism isolating pipe, a diaphragm fixedly connected to the pump core, and a pump core seat matched with the diaphragm; a winding coil is sleeved on the magnetism isolating pipe, and the winding coil can generate a magnetic field for driving the pump core to compress the pump core spring when being electrified; the method is characterized in that: the pump cartridge seat is as set forth in any one of claims 1-8.

10. The electromagnetic diaphragm pump of claim 9, wherein: the inlet position of the water inlet hole on the pump core seat is provided with a first check head, and the outlet position of the water outlet hole is provided with a second check head.

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