Electromagnetic water pump with high sealing performance

Abstract

The utility model discloses an electromagnetic water pump with high sealing performance, which comprises a pump body, a cavity is arranged in the pump body, two ends of the pump body are respectively a water inlet end and a water outlet end, a sealing structure used for controlling water inlet and water outlet of the pump body is arranged in the cavity, when the sealing structure is in a sealing state, negative pressure is generated in the cavity, external water is sucked into the cavity from the water inlet end, and the water inlet end and the water outlet end are communicated with the cavity. When the sealing structure is in a sealing separation state, the air pressure in the cavity and the external air pressure are balanced, and water in the cavity is pumped out from the water outlet end; the sealing structure comprises a water stop head and a sealing ring matched with the water stop head, the water stop head is provided with a concave face structure used for enhancing the sealing effect, and the sealing ring is provided with a convex face structure matched with the concave face structure to achieve sealing. The water stop head is reasonable in structural design, the concave surface structure is designed at the front end of the water stop head and matched with the convex surface structure on the sealing ring for sealing, the reliable sealing effect is achieved, the shrinkage type water outlet hole can reduce gas leakage when negative pressure is generated, the negative pressure in the cavity is ensured, and then water inflow is ensured.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to an electromagnetic water pump with high sealing performance. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of a prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, and suspensions. At present, electromagnetic water pumps have been developed to improve efficiency. The operation of an electromagnetic water pump mainly relies on the reciprocating motion of its internal moving iron core to achieve the purpose of water intake and pumping. The moving iron core is inside the pump body (specifically inside the electromagnetic system), and one end of it is freely limited to the central axis of the product by a gasket or diaphragm.

[0003] During the operation of the iron core, the internal water-stop head and sealing ring are either in a relatively sealed state or out of sealed state. In the relatively sealed state, negative pressure is generated inside the pump, drawing water from the outside into the pump, creating a water suction effect. When the seal is broken, the internal and external air pressures are balanced, and the water inside the pump is discharged. Therefore, the sealing effect between the water-stop head and sealing ring determines the negative pressure generated inside the pump. Some existing electromagnetic water pumps have poor sealing effects, resulting in incomplete sealing between the water-stop head and sealing ring. Poor sealing leads to air leakage, preventing the generation of negative pressure, affecting water intake and discharge, and ultimately impacting the performance of the electromagnetic water pump. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-sealing electromagnetic water pump in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a high-sealing electromagnetic water pump, including a pump body, the pump body being a cavity, with an inlet end and an outlet end at both ends of the pump body, respectively. The cavity is provided with a sealing structure for controlling the water inlet and outlet of the pump body. When the sealing structure is in a sealed state, a negative pressure is generated in the cavity, and external water is drawn into the cavity from the inlet end. When the sealing structure is in a de-sealed state, the air pressure in the cavity and the external air pressure are balanced, and the water in the cavity is pumped out from the outlet end. The sealing structure includes a water-stop head and a sealing ring that cooperates with the water-stop head. The water-stop head is provided with a concave structure for enhancing the sealing effect, and the sealing ring is provided with a convex structure that cooperates with the concave structure to achieve sealing.

[0006] Preferably, the water outlet end is provided with a water outlet cover, the inside of the water outlet cover is a water outlet channel, one end of the water outlet channel is a water outlet, and the other end of the water outlet channel is a reduced water outlet hole for reducing gas leakage in the cavity when under negative pressure. The water outlet channel and the cavity are connected through the reduced water outlet hole, which is formed by the water outlet channel contracting inward toward the cavity.

[0007] Preferably, the cavity is divided into a left cavity and a right cavity by a sealing ring. The water-stop head is arranged in the left cavity, and the right cavity is provided with a magnetic push unit that is controlled to move by a magnetic field. The magnetic push unit moves back and forth under the action of the magnetic field, and the movement of the magnetic push unit controls the sealing structure to switch between the sealing state and the unsealing state.

[0008] Preferably, the magnetic actuation unit includes an iron core that moves under the action of a magnetic field. One end of the iron core is engaged with a push rod, and the other end of the iron core is sleeved with a compression spring. The end of the compression spring abuts against the inner wall of the cavity. An inner sleeve is provided on the side of the sealing ring away from the water-stop head. The inner sleeve abuts against the sealing ring. The inner sleeve is provided with a first through hole for the end of the push rod to pass through, and the sealing ring is provided with a second through hole for the end of the push rod to pass through.

[0009] Preferably, when the iron core drives the top rod to move towards the water-stop head, the end of the top rod passes through the first through hole and the second through hole respectively and abuts against the concave structure. The top rod drives the water-stop head to move away from the sealing ring until the concave structure and the convex structure are separated from the seal. The air pressure in the cavity is balanced with the external atmospheric pressure, and the water in the cavity is discharged from the cavity through the water outlet.

[0010] Preferably, a spring is fitted onto the water-stop head, and the other end of the spring is in contact with the inner wall of the cavity.

[0011] Compared with the prior art, the advantages of this utility model are: by designing a concave structure at the front end of the water-stop head, which cooperates with the convex structure on the sealing ring to seal, the sealing performance is improved and a reliable sealing effect is produced. In addition, the reduced water outlet hole can reduce gas leakage when negative pressure is generated, ensuring negative pressure in the cavity, thereby ensuring water inlet. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0013] Figure 2 This is a cross-sectional structural diagram of the sealing structure of this utility model.

[0014] Reference numerals: 1. Pump body; 2. Inlet end; 3. Outlet end; 4. Stop head; 5. Sealing ring; 6. Concave structure; 7. Convex structure; 8. Outlet cover; 9. Outlet channel; 10. Outlet; 11. Reduced outlet hole; 12. Left cavity; 13. Right cavity; 14. Iron core; 15. Push rod; 16. Compression spring; 17. Inner sleeve; 18. First through hole; 19. Second through hole; 20. Spring. Detailed Implementation

[0015] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0016] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] Furthermore, in addition to indicating orientation or positional relationship, the aforementioned terms may also be used to indicate other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in this utility model can be understood according to the specific circumstances.

[0018] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral structures; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two devices, components, or parts. The connection methods described herein are existing technologies without any modifications and are common knowledge to those skilled in the art. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] like Figures 1 to 2As shown, this utility model provides a high-sealing electromagnetic water pump, including a pump body 1, with a cavity inside the pump body 1. The two ends of the pump body 1 are an inlet end 2 and an outlet end 3, respectively. The cavity is provided with a sealing structure for controlling the water inlet and outlet of the pump body 1. When the sealing structure is in a sealed state, a negative pressure is generated in the cavity, and external water is drawn into the cavity from the inlet end 2. When the sealing structure is out of the sealed state, the air pressure inside the cavity is balanced with the external air pressure, and the water in the cavity is pumped out from the outlet end 3. Specifically, the sealing structure includes a water-stop head 4 and a sealing ring 5 that cooperates with the water-stop head 4. The water-stop head 4 is provided with a concave structure 6 for enhancing the sealing effect, and the sealing ring 5 is provided with a convex structure 7 that cooperates with the concave structure 6 to achieve sealing.

[0021] The water-stop head 4 and the concave structure 6 are injection molded from plastic; the sealing ring 5 and the convex structure 7 are made of soft rubber.

[0022] The water outlet 3 is provided with a water outlet cover 8. The inside of the water outlet cover 8 is a water outlet channel 9. One end of the water outlet channel 9 is a water outlet 10, and the other end of the water outlet channel 9 is a reduced water outlet hole 11 for reducing gas leakage in the cavity when under negative pressure. Specifically, the water outlet channel 9 and the cavity are connected through the reduced water outlet hole 11, which is formed by the water outlet channel 9 contracting inward toward the cavity.

[0023] The cavity is divided into a left cavity 12 and a right cavity 13 by a sealing ring 5. The water stop head 4 is arranged in the left cavity 12, and the right cavity 13 is provided with a magnetic push unit whose movement is controlled by a magnetic field. Specifically, the magnetic push unit moves back and forth under the action of the magnetic field, and the movement of the magnetic push unit controls the sealing structure to switch between the sealing state and the unsealing state.

[0024] The magnetic actuation unit includes an iron core 14 that moves under the action of a magnetic field. One end of the iron core 14 is connected to a push rod 15, and the other end of the iron core 14 is fitted with a compression spring 16. The end of the compression spring 16 is in contact with the inner wall of the cavity. Specifically, the sealing ring 5 is provided with an inner sleeve 17 on the side away from the water stop head 4. The inner sleeve 17 is in contact with the sealing ring 5. The inner sleeve 17 is provided with a first through hole 18 for the end of the push rod 15 to pass through, and the sealing ring 5 is provided with a second through hole 19 for the end of the push rod 15 to pass through.

[0025] When the iron core 14 drives the top rod 15 to move towards the water-stop head 4, the end of the top rod 15 passes through the first through hole 18 and the second through hole 19 respectively and abuts against the concave structure 6. The top rod 15 drives the water-stop head 4 to move away from the sealing ring 5 until the concave structure 6 and the convex structure 7 are separated from the seal. The air pressure in the cavity is balanced with the external atmospheric pressure, and the water in the cavity is discharged from the cavity through the water outlet 3.

[0026] A spring 20 is fitted onto the water-stop head 4, and the other end of the spring 20 is in contact with the inner wall of the cavity.

[0027] The working principle of this utility model is as follows: When the electromagnetic pump is powered on, the iron core 14 moves back and forth under the action of the electromagnetic field and the compression spring 16. When the iron core 14 moves to the right under the action of the magnetic field, that is, moves away from the water stop head 4, the iron core 14 compresses the compression spring 16. At this time, the water stop head 4 and the sealing ring 5 are in a sealed state, that is, the concave structure 6 on the water stop head 4 and the convex structure 7 on the sealing ring 5 are tightly connected, achieving a very good sealing effect. At the same time, since the concave shape of the concave structure 6 matches the convex shape of the convex structure 7, the sealing effect is further improved. At this time, since the airflow cannot flow from the right cavity 13 to the left cavity 12 through the sealing structure, a negative pressure is generated in the cavity. In addition, the reduced water outlet hole 11 in the water outlet end 3 can reduce the leakage of gas when a negative pressure is generated, ensuring the negative pressure in the cavity. External water is sucked into the cavity from the water inlet end 2 of the pump body 1, achieving the effect of water suction.

[0028] When the iron core 14 moves to the left under the action of the magnetic field, that is, moves closer to the water stop head 4, the compression spring 16 returns to its original position, and the iron core 14 drives the push rod 15 to move to the left synchronously until the end of the push rod 15 passes through the first through hole 18 and the second through hole 19 respectively and comes into contact with the concave structure 6. It continues to drive the concave structure 6 and the water stop head 4 to move to the left synchronously until the water stop head 4 leaves the sealing ring 5, the concave structure 6 and the convex structure 7 are no longer in close contact, and the spring 20 is compressed under the movement of the water stop head 4. At this time, the airflow flows through the first through hole 18 and the second through hole 19 into the entire cavity, the internal and external pressures are balanced, and the water in the cavity is discharged from the water outlet 3, achieving the effect of pumping water.

[0029] The advantages of this utility model are: by designing a concave structure 6 at the front end of the water-stop head 4, which cooperates with the convex structure 7 on the sealing ring 5 to seal, the sealing performance is improved and a reliable sealing effect is produced. In addition, the reduced water outlet hole 11 can reduce gas leakage when negative pressure is generated, ensuring negative pressure in the cavity, thereby ensuring water inlet.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the existing technology, and will not be described in detail here.

[0032] The above description is only a preferred embodiment of this utility model. For those skilled in the art, various modifications and variations can be made in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A high-sealing electromagnetic water pump, comprising a pump body, the pump body being a cavity, with an inlet and an outlet at both ends of the pump body, characterized in that: The cavity is equipped with a sealing structure for controlling the water inlet and outlet of the pump. When the sealing structure is in a sealed state, a negative pressure is generated in the cavity, and external water is drawn into the cavity from the inlet end. When the sealing structure is out of the sealed state, the air pressure inside the cavity is balanced with the external air pressure, and the water in the cavity is pumped out from the outlet end. The sealing structure includes a water-stop head and a sealing ring that cooperates with the water-stop head. The water-stop head is provided with a concave structure to enhance the sealing effect, and the sealing ring is provided with a convex structure that cooperates with the concave structure to achieve a seal.

2. The electromagnetic water pump with high sealing performance according to claim 1, characterized in that: The water outlet end is equipped with a water outlet cover, the inside of which is a water outlet channel. One end of the water outlet channel is a water outlet, and the other end of the water outlet channel is a reduced water outlet hole used to reduce gas leakage in the cavity when under negative pressure. The water outlet channel and the cavity are connected through the reduced water outlet hole, which is formed by the water outlet channel contracting inward toward the cavity.

3. The electromagnetic water pump with high sealing performance according to claim 1, characterized in that: The cavity is divided into a left cavity and a right cavity by a sealing ring. The water-stop head is arranged in the left cavity, and the right cavity is equipped with a magnetic push unit whose movement is controlled by a magnetic field. The magnetic push unit moves back and forth under the action of the magnetic field. The movement of the magnetic push unit controls the sealing structure to switch between the sealing state and the unsealing state.

4. The electromagnetic water pump with high sealing performance according to claim 3, characterized in that: The magnetic actuation unit includes an iron core that moves under the action of a magnetic field. One end of the iron core is clamped with a push rod, and the other end of the iron core is sleeved with a compression spring. The end of the compression spring is in contact with the inner wall of the cavity. An inner sleeve is provided on the side of the sealing ring away from the water stop head. The inner sleeve is in contact with the sealing ring. The inner sleeve is provided with a first through hole for the end of the push rod to pass through, and the sealing ring is provided with a second through hole for the end of the push rod to pass through.

5. The electromagnetic water pump with high sealing performance according to claim 4, characterized in that: When the iron core drives the push rod to move towards the water-stop head, the end of the push rod passes through the first through hole and the second through hole respectively and abuts against the concave structure. The push rod drives the water-stop head to move away from the sealing ring until the concave structure and the convex structure are separated from the seal. The air pressure in the cavity is balanced with the external atmospheric pressure, and the water in the cavity is discharged from the cavity through the water outlet.

6. The electromagnetic water pump with high sealing performance according to claim 1, characterized in that: A spring is fitted onto the water-stop head, and the other end of the spring is in contact with the inner wall of the cavity.

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