阅读说明：本技术 一种往复式电磁泵 (Reciprocating electromagnetic pump ) 是由 杨宝忠 于 2021-08-16 设计创作，主要内容包括：本发明涉及电磁泵技术领域,尤其涉及一种往复式电磁泵。设置有固定板、活动板,固定板与活动板之间设置有拉伸弹簧,固定板与活动板之间设置有密封膜,密封膜与所固定板、活动板合围出动力腔,泵体外安装电磁铁,通过电磁铁与拉伸弹簧的配合,使动力腔内的空间进行周期性变化,通过动力腔内空间的周期性变化对液体进行泵送,整个过程的密封处没有相对运动,因此可以保证密封的长期有效性。拉伸弹簧外圈设置有伸缩管,通过伸缩管对拉伸弹簧进行支撑使拉伸弹簧在伸长或缩短过程中不发生偏移或弯曲,保证往复电磁泵工作的有效性和稳定性。通过卡环对密封膜进行固定,并用密封胶进行密封,能有效保证动力腔的密封性,防止往复电磁泵发生泄露。(The invention relates to the technical field of electromagnetic pumps, in particular to a reciprocating electromagnetic pump. The sealing device is provided with a fixed plate and a movable plate, an extension spring is arranged between the fixed plate and the movable plate, a sealing film is arranged between the fixed plate and the movable plate, a power cavity is surrounded by the sealing film, the fixed plate and the movable plate, an electromagnet is arranged outside a pump body, the space in the power cavity is periodically changed through the matching of the electromagnet and the extension spring, liquid is pumped through the periodic change of the space in the power cavity, and the sealing part of the whole process does not move relatively, so that the long-term effectiveness of sealing can be ensured. The outer ring of the extension spring is provided with a telescopic pipe, and the extension spring is supported by the telescopic pipe so as not to deviate or bend in the extension or shortening process, thereby ensuring the working effectiveness and stability of the reciprocating electromagnetic pump. Fix the seal membrane through the snap ring to seal with sealed glue, can effectively guarantee the leakproofness in power chamber, prevent that reciprocal electromagnetic pump from taking place to reveal.)

1. A reciprocating electromagnetic pump comprises a pump body (1), wherein the pump body (1) is provided with an inlet (11) and an outlet (12), and is characterized in that the inlet (11) and the outlet (12) are respectively arranged at two ends of the pump body (1);

a power assembly (2) is arranged in the pump body (1), the power assembly (2) comprises a fixed plate (21) and a movable plate (22), an extension spring (23) is arranged between the fixed plate (21) and the movable plate (22), and two ends of the extension spring (23) are respectively fixed relative to the fixed plate (21) and the movable plate (22);

a sealing film (24) is arranged between the fixed plate (21) and the movable plate (22), a power cavity (25) is surrounded by the sealing film (24), the fixed plate (21) and the movable plate (22), the joint of the sealing film (24) and the fixed plate (21) is free of leakage, and the joint of the sealing film (24) and the movable plate (22) is free of leakage;

the fixing plate (21) is fixed at the inlet (11) end of the pump body (1) and is arranged between the inlet (11) and the outlet (12), the fixing plate (21) is provided with a first liquid passing port (211), the first liquid passing port (211) is communicated with the inlet (11) and the power cavity (25), a first one-way valve (212) is installed at the first liquid passing port (211), and the first one-way valve (212) is used for preventing pumped media from flowing back to the inlet (11);

the movable plate (22) is arranged at the section of the outlet (12) of the pump body (1) and is arranged between the inlet (11) and the outlet (12), the movable plate (22) is provided with a second liquid passing port (221), the second liquid passing port (221) is communicated with the power cavity (25) and the outlet (12), a second one-way valve (222) is mounted at the second liquid passing port (221), and the second one-way valve (222) is used for preventing pumped media from flowing back to the power cavity (25);

the movable plate (22) is provided with an armature (223), an electromagnet (3) is installed outside the pump body (1), and the position of the electromagnet (3) corresponds to the position of the armature (223);

the second liquid passing port (221) is connected with the outlet (12) through a hose (4).

2. A reciprocating electromagnetic pump according to claim 1, characterized in that the sealing membrane (24) is arranged inside the inner ring of the tension spring (23).

3. The reciprocating electromagnetic pump according to claim 1, characterized in that the extension spring (23) is provided with a telescopic tube (5) at its outer periphery, the telescopic tube (5) comprises a first support tube (51) and a second support tube (52), the first support tube (51) is fixed to the movable plate (22), and the second support tube (52) is fixed to the fixed plate (21).

4. The reciprocating electromagnetic pump according to claim 1, characterized in that a stop ring (6) is provided in the pump body (1), the stop ring (6) being disposed between the fixed plate (21) and the movable plate (22) and adjacent to the fixed plate (21), the stop ring (6) being configured to stop the movable plate (22).

5. A reciprocating electromagnetic pump according to claim 1, characterized in that the armature (223) is provided with an avoidance groove (224), the avoidance groove (224) being used to avoid the hose (4).

6. The reciprocating electromagnetic pump according to claim 1, characterized in that the fixing plate (21) is provided with a first clamping groove (213), a first clamping ring (214) is installed in the first clamping groove (213), and the end part of the sealing membrane (24) is fixed in the first clamping groove (213) through the first clamping ring (214);

the portable plate (22) is provided with second draw-in groove (225), install second snap ring (226) in second draw-in groove (225), the tip of seal membrane (24) passes through second snap ring (226) are fixed in second draw-in groove (225).

7. The reciprocating electromagnetic pump according to claim 1, wherein both the first clamping groove (213) and the second clamping groove (225) are filled with a sealing gel.

8. A reciprocating electromagnetic pump according to claim 1, characterized in that the moving plate (22) is provided with a projection (227), the pump body (1) is provided with a groove (13), the projection (227) matches the groove (13), and the projection (227) extends into the groove (13).

Technical Field

The invention relates to the technical field of electromagnetic pumps, in particular to a reciprocating electromagnetic pump.

Background

A pump is a machine that delivers or pressurizes a fluid. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solid.

The pump is generally divided into a fixed part and a movable part, the liquid to be conveyed is conveyed by the movement of the movable part, and the movable part and the fixed part are generally required to be designed with various sealing structures to prevent the liquid to be conveyed from leaking, and no matter what type of sealing structure is, the sealing structure is worn in the long-time working process of the pump, so that the leakage is inevitable.

Therefore, a pump is urgently needed to be designed, and relative movement does not occur at each sealing part in the liquid conveying process, so that leakage caused by abrasion of a sealing structure is avoided, and long-term effectiveness and high efficiency of pump work are guaranteed.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a reciprocating electromagnetic pump which is provided with a fixed plate and a movable plate, wherein an extension spring is arranged between the fixed plate and the movable plate, a sealing membrane is arranged between the fixed plate and the movable plate, the sealing membrane, the fixed plate and the movable plate surround a power cavity, an electromagnet is arranged outside a pump body, the space in the power cavity is periodically changed through the matching of the electromagnet and the extension spring, liquid is pumped through the periodic change of the space in the power cavity, and the sealing part in the whole process does not move relatively, so that the long-term effectiveness of sealing can be ensured.

The invention provides a reciprocating electromagnetic pump, which comprises a pump body, wherein the pump body is provided with an inlet and an outlet, and the inlet and the outlet are respectively arranged at two ends of the pump body;

in the invention, a power assembly is arranged in a pump body, the power assembly comprises a fixed plate and a movable plate, an extension spring is arranged between the fixed plate and the movable plate, and two ends of the extension spring are respectively fixed with the fixed plate and the movable plate;

according to the invention, a sealing film is arranged between the fixed plate and the movable plate, the sealing film, the fixed plate and the movable plate surround a power cavity, the joint of the sealing film and the fixed plate is free from leakage, and the joint of the sealing film and the movable plate is free from leakage;

in the invention, a fixed plate is fixed at the inlet end of a pump body and is arranged between an inlet and an outlet, the fixed plate is provided with a first liquid passing port, the first liquid passing port is communicated with the inlet and a power cavity, and a first check valve is arranged at the first liquid passing port and is used for preventing pumped media from flowing back to the inlet;

in the invention, the movable plate is arranged at the outlet section of the pump body and is arranged between the inlet and the outlet, the movable plate is provided with a second liquid passing port, the second liquid passing port is communicated with the power cavity and the outlet, and a second one-way valve is arranged at the second liquid passing port and is used for preventing pumped media from flowing back to the power cavity;

according to the invention, the movable plate is provided with the armature, the pump body is externally provided with the electromagnet, and the position of the electromagnet corresponds to the position of the armature;

in the invention, the second liquid passing port is connected with the outlet through a hose.

In a preferred embodiment of the present invention, the sealing film is disposed inside the tension spring inner ring.

As a preferable scheme of the present invention, the extension spring outer ring is provided with an extension tube, the extension tube includes a first support tube and a second support tube, the first support tube is fixed to the movable plate, and the second support tube is fixed to the fixed plate.

As a preferred scheme of the present invention, a limiting ring is disposed in the pump body, the limiting ring is disposed between the fixed plate and the movable plate and is close to the fixed plate, and the limiting ring is used for limiting the movable plate.

As a preferred aspect of the present invention, the armature is provided with an avoidance groove for avoiding the hose.

According to a preferable scheme of the invention, the fixing plate is provided with a first clamping groove, a first clamping ring is installed in the first clamping groove, the end part of the sealing film is fixed in the first clamping groove through the first clamping ring, the movable plate is provided with a second clamping groove, a second clamping ring is installed in the second clamping groove, and the end part of the sealing film is fixed in the second clamping groove through the second clamping ring.

As a preferred scheme of the present invention, the first and second slots are filled with a sealant.

As a preferred scheme of the invention, the movable plate is provided with a lug, the pump body is provided with a groove, the lug is matched with the groove, and the lug extends into the groove.

The beneficial effects of the invention are as follows:

1. the sealing device is provided with a fixed plate and a movable plate, an extension spring is arranged between the fixed plate and the movable plate, a sealing film is arranged between the fixed plate and the movable plate, the sealing film, the fixed plate and the movable plate surround a power cavity, an electromagnet is arranged outside a pump body, the space in the power cavity is periodically changed through the matching of the electromagnet and the extension spring, liquid is pumped through the periodic change of the space in the power cavity, and the sealing part in the whole process does not move relatively, so that the long-term effectiveness of sealing can be ensured.

2. The extension spring is supported by the extension spring through the extension tube, so that the extension spring is not deviated or bent in the extension or shortening process, and the working effectiveness and stability of the reciprocating electromagnetic pump are ensured.

3. According to the invention, the sealing film is fixed by the snap ring and sealed by the sealant, so that the sealing property of the power cavity can be effectively ensured, and the reciprocating electromagnetic pump is prevented from leaking.

Drawings

FIG. 1 is a longitudinal cross-sectional view of a reciprocating electromagnetic pump in accordance with the present invention;

FIG. 2 is a cross-sectional view of a power assembly in a reciprocating electromagnetic pump according to the present invention;

fig. 3 is a transverse sectional view of a reciprocating electromagnetic pump according to the present invention.

In the figure: 1. a pump body; 11. an inlet; 12. an outlet; 13. a groove; 2. a power assembly; 21. a fixing plate; 211. a first liquid passing port; 212. a first check valve; 213. a first card slot; 214. a first snap ring; 22. a movable plate; 221. a second liquid passing port; 222. a second one-way valve; 223. an armature; 224. an avoidance groove; 225. a second card slot; 226. a second snap ring; 227. a bump; 23. an extension spring; 24. a sealing film; 25. a power cavity; 3. an electromagnet; 4. a hose; 5. a telescopic pipe; 51. a first support tube; 52. a second support tube; 6. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a reciprocating electromagnetic pump includes a pump body 1, the pump body 1 is provided with an inlet 11 and an outlet 12, and the inlet 11 and the outlet 12 are respectively disposed at two ends of the pump body 1. The pump body 1 is internally provided with a power assembly 2, the power assembly 2 comprises a fixed plate 21 and a movable plate 22, an extension spring 23 is arranged between the fixed plate 21 and the movable plate 22, and two ends of the extension spring 23 are respectively fixed relative to the fixed plate 21 and the movable plate 22. A sealing membrane 24 is arranged between the fixed plate 21 and the movable plate 22, a power cavity 25 is enclosed by the sealing membrane 24, the fixed plate 21 and the movable plate 22, no leakage exists at the joint of the sealing membrane 24 and the fixed plate 21, and no leakage exists at the joint of the sealing membrane 24 and the movable plate 22. The fixed plate 21 is fixed at the inlet 11 end of the pump body 1 and is arranged between the inlet 11 and the outlet 12, the fixed plate 21 is provided with a first liquid passing port 211, the first liquid passing port 211 is communicated with the inlet 11 and the power cavity 25, a first check valve 212 is installed at the first liquid passing port 211, and the first check valve 212 is used for preventing pumped media from flowing back to the inlet 11. The movable plate 22 is disposed at the section of the outlet 12 of the pump body 1 and between the inlet 11 and the outlet 12, the movable plate 22 is provided with a second liquid passing port 221, the second liquid passing port 221 communicates the power cavity 25 and the outlet 12, the second liquid passing port 221 is provided with a second check valve 222, and the second check valve 222 is used for preventing pumped media from flowing back to the power cavity 25. The movable plate 22 is provided with an armature 223, the pump body 1 is externally provided with an electromagnet 3, and the position of the electromagnet 3 corresponds to the position of the armature 223. The second liquid passing port 221 is connected to the outlet 12 via a hose 4.

It can be understood that, during the operation of the reciprocating electromagnetic pump, when the electromagnet 3 is electrified, the electromagnet 3 generates an electromagnetic attraction force on the armature 223, so that the armature 223 is attracted by the electromagnet 3. During the process that the armature 223 is attracted by the electromagnet 3, the armature 223 drives the movable plate 22 to move away from the fixed plate 21. After the movable plate 22 is far away from the fixed plate 21, the space in the power cavity 25 is increased, liquid enters the pump from the inlet 11 and enters the power cavity 25 through the first liquid passing port 211, and in the process, the liquid cannot flow back to the power cavity 25 from the outlet 12 of the pump body 1 under the action of the second one-way valve 222, so that the working effectiveness of the pump is ensured. When the electromagnet 3 is de-energized, the magnetic force of the electromagnet 3 disappears, and the armature 223 is released. After the electromagnet 3 releases the armature 223, under the action of the tension spring, the movable plate 22 approaches the fixed plate 21, at this time, the space in the power cavity 25 is reduced, and therefore, the liquid in the power cavity 25 is discharged outwards, and due to the action of the first one-way valve, the liquid cannot be discharged from the power cavity 25 to the inlet 11 of the pump body 1, and like the action of the second one-way valve, the liquid in the power cavity 25 can be discharged from the power cavity 25 to the outlet 12 of the valve body. The power of the electromagnet 3 is controlled to periodically change the space in the power cavity 25, so that the liquid is pumped. In the process of pumping liquid, the liquid enters from the inlet 11 of the pump body 1, enters the power cavity 25 through the first liquid passing port 211 and then reaches the outlet 12 of the pump body 1 through the second liquid passing port 221, the process is carried out in a relatively closed space, and the sealing part of the whole process does not move relatively, so that the long-term effectiveness of sealing can be ensured. When the space in the power cavity 25 changes periodically, the sealing film 24 has deformability, so that the sealing film can effectively adapt to the periodic change of the space in the power cavity 25, and liquid leakage does not occur.

Preferably, the sealing film 24 is arranged inside the inner coil of the tension spring 23.

As can be understood, the sealing film 24 is arranged in the inner ring of the extension spring 23, and after liquid enters the sealing cavity, the sealing film is not in contact with other parts of the pump, so that the influence of the liquid on parts of the pump is reduced to the greatest extent, the service life of the pump can be effectively prolonged, and the maintenance frequency is reduced.

Further, a telescopic tube 5 is arranged on the outer ring of the extension spring 23, the telescopic tube 5 comprises a first support tube 51 and a second support tube 52, the first support tube 51 is fixed on the movable plate 22, and the second support tube 52 is fixed on the fixed plate 21.

It can be understood that, because the extension spring 23 is a flexible component, bending or deflection may occur during the stretching or compressing process, the extension spring 23 is limited by the telescopic tube 5, so that the bending or deflection of the extension spring 23 can be effectively avoided, and the effectiveness and reliability of the pump operation can be further ensured. The telescopic tube 5, which is composed of the first support tube 51 fixed to the movable plate 22 and the second support tube 52 fixed to the fixed plate 21, has a simple structure, can be extended or shortened by moving the movable plate 22, and can effectively adapt to the operation of the pump.

Further, a limiting ring 6 is arranged in the pump body 1, the limiting ring 6 is arranged between the fixed plate 21 and the movable plate 22 and is close to the fixed plate 21, and the limiting ring 6 is used for limiting the movable plate 22.

It can be understood that, through the limiting effect of the limiting ring 6, the moving range of the movable plate 22 is always within the effective range, so that the movable plate 22 is prevented from exceeding the magnetic force range of the electromagnet 3, and the reliability of the pump is ensured.

Preferably, the armature 223 is provided with an avoidance groove 224, the avoidance groove 224 serving to avoid the hose 4.

It can be understood that the avoiding groove 224 divides the armature 223 into two parts and is symmetrical, and when the electromagnet 3 attracts the armature 223, the symmetrical structure can ensure the uniformity of the acceptance of the armature 223, and prevent the armature 223 from being blocked due to the nonuniform acceptance.

Further, the fixing plate 21 is provided with a first clamping groove 213, a first clamping ring 214 is installed in the first clamping groove 213, the end portion of the sealing film 24 is fixed in the first clamping groove 213 through the first clamping ring 214, the movable plate 22 is provided with a second clamping groove 225, a second clamping ring 226 is installed in the second clamping groove 225, and the end portion of the sealing film 24 is fixed in the second clamping groove 225 through the second clamping ring 226.

It can be understood that the sealing film 24 is fixed by the first snap ring 214 and the second snap ring 226, the first snap ring 214 is fixed in the first locking groove 213 by screws, and the second snap ring 226 is fixed in the second locking groove 225 by screws, so as to effectively prevent the sealing film 24 from falling off from the fixed plate 21 or the movable plate 22.

Further, the first card slot 213 and the second card slot 225 are filled with sealant.

It can be understood that the sealing performance of the power cavity 25 can be effectively ensured by the action of the sealing glue, and the liquid leakage phenomenon of the liquid in the pumping process can be prevented.

Preferably, the movable plate 22 is provided with a projection 227, the pump body 1 is provided with a groove 13, the projection 227 is matched with the groove 13, and the projection 227 extends into the groove 13.

It can be understood that the groove 13 guides the projection 227, so that the stability of the movable plate 22 during movement can be ensured, the movable plate 22 can be prevented from moving in other directions, and the reliability of the pump operation can be ensured.

The working principle is as follows: as shown in fig. 1 to 3, during the operation of the reciprocating electromagnetic pump, when the electromagnet 3 is powered, the electromagnet 3 generates an electromagnetic attraction force on the armature 223, so that the armature 223 is attracted by the electromagnet 3. During the process that the armature 223 is attracted by the electromagnet 3, the armature 223 drives the movable plate 22 to move away from the fixed plate 21. After the movable plate 22 is far away from the fixed plate 21, the space in the power cavity 25 is increased, liquid enters the pump from the inlet 11 and enters the power cavity 25 through the first liquid passing port 211, and in the process, the liquid cannot flow back to the power cavity 25 from the outlet 12 of the pump body 1 under the action of the second one-way valve 222, so that the working effectiveness of the pump is ensured. When the electromagnet 3 is de-energized, the magnetic force of the electromagnet 3 disappears, and the armature 223 is released. After the electromagnet 3 releases the armature 223, under the action of the tension spring, the movable plate 22 approaches the fixed plate 21, at this time, the space in the power cavity 25 is reduced, and therefore, the liquid in the power cavity 25 is discharged outwards, and due to the action of the first one-way valve, the liquid cannot be discharged from the power cavity 25 to the inlet 11 of the pump body 1, and like the action of the second one-way valve, the liquid in the power cavity 25 can be discharged from the power cavity 25 to the outlet 12 of the valve body. The power of the electromagnet 3 is controlled to periodically change the space in the power cavity 25, so that the liquid is pumped. In the process of pumping liquid, the liquid enters from the inlet 11 of the pump body 1, enters the power cavity 25 through the first liquid passing port 211 and then reaches the outlet 12 of the pump body 1 through the second liquid passing port 221, the process is carried out in a relatively closed space, and the sealing part of the whole process does not move relatively, so that the long-term effectiveness of sealing can be ensured. When the space in the power cavity 25 changes periodically, the sealing film 24 has deformability, so that the sealing film can effectively adapt to the periodic change of the space in the power cavity 25, and liquid leakage does not occur.

The sealing film 24 is arranged in the inner ring of the extension spring 23, and when liquid enters the sealing cavity, the sealing film is not in contact with other parts of the pump, so that the influence of the liquid on parts of the pump is reduced to the greatest extent, the service life of the pump can be effectively prolonged, and the maintenance frequency is reduced.

Because the extension spring 23 is a flexible part, bending or deviation can occur in the process of stretching or compressing, the extension spring 23 is limited by the extension pipe 5, the bending or deviation of the extension spring 23 can be effectively avoided, and the working effectiveness and reliability of the pump are further ensured. The telescopic tube 5, which is composed of the first support tube 51 fixed to the movable plate 22 and the second support tube 52 fixed to the fixed plate 21, has a simple structure, can be extended or shortened by moving the movable plate 22, and can effectively adapt to the operation of the pump.

The pump body 1 is internally provided with a limiting ring 6, the limiting ring 6 is arranged between the fixed plate 21 and the movable plate 22 and is close to the fixed plate 21, and the limiting ring 6 is used for limiting the movable plate 22. Through the limiting effect of the limiting ring 6, the moving range of the movable plate 22 is always within the effective range, the movable plate 22 is prevented from exceeding the magnetic force range of the electromagnet 3, and the reliability of the pump is ensured.

The sealing film 24 is fixed by the first snap ring 214 and the second snap ring 226, the first snap ring 214 is fixed in the first locking groove 213 by screws, and the second snap ring 226 is fixed in the second locking groove 225 by screws, so that the sealing film 24 can be effectively prevented from falling off from the fixed plate 21 or the movable plate 22.

The first slot 213 and the second slot 225 are filled with sealant. Through the effect of the sealant, the tightness of the power cavity 25 can be effectively ensured, and the liquid leakage phenomenon in the pumping process can be prevented.

The movable plate 22 is provided with a projection 227, the pump body 1 is provided with a groove 13, the projection 227 is matched with the groove 13, and the projection 227 extends into the groove 13. The groove 13 guides the projection 227, so that the stability of the movable plate 22 during movement can be ensured, the movable plate 22 can be prevented from moving towards other directions, and the working reliability of the pump can be ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.