Self-priming electronic water pump

Abstract

The utility model relates to the technical field of water pumps, in particular to a self-priming electronic water pump. According to the self-priming electronic water pump, when no water exists in the pump cavity, the rotating shaft rotates forwards so as to drive the driving gear to rotate, then the driving gear is meshed and matched with the driven gear to achieve the gear pump effect, the interior of the pump cavity is pumped to be in a negative pressure state, water is sucked into the pump body, and after the water amount in the pump cavity reaches the preset water amount, the self-priming electronic water pump is started. Through reverse rotation of the rotating shaft, the driving gear stops rotating, only the impeller is driven to rotate, at the moment, the centrifugal pump effect is achieved, the pump body can continuously pump water, and then the technical problem that an existing self-priming pump needs to be manually filled before being started is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a self-priming electronic water pump. Background Art

[0002] Self-priming pumps are commonly used in industrial irrigation. After startup, they can automatically expel air from the pump and the suction pipe, thereby creating suction to draw water from the water source. However, when the pump is started, in order to meet the self-priming force of the pump, it is usually necessary to manually fill the pump head with water or introduce liquid into the pump chamber through a pressure tank to achieve self-priming.

[0003] This method requires that the self-priming pump must ensure that there is enough water in the pump body before use, otherwise the self-priming function cannot be performed normally, and the self-priming pump will be damaged if it runs for a long time without liquid.

[0004] Therefore, it is urgent to provide a self-priming electronic water pump to solve the technical problem of needing to manually fill the water pump with water in advance. Utility Model Content

[0005] In order to solve the technical problems mentioned in the background technology, the utility model provides a self-priming electronic water pump.

[0006] The utility model provides a self-priming electronic water pump, comprising: a pump body, an impeller is arranged inside the pump body; and

[0007] A driving gear and a driven gear disposed in the pump body; and

[0008] The impeller is also provided with a rotating shaft connected to the driving gear, and a one-way bearing is sleeved between the driving gear and the rotating shaft;

[0009] The driving gear is adapted to rotate when the rotating shaft rotates in the forward direction, so as to engage and rotate with the driven gear, thereby pumping water into the pump body.

[0010] Furthermore, the pump body comprises a pump cover and a pump head from top to bottom;

[0011] The driving gear and the driven gear are both arranged in the pump cover;

[0012] The impeller is arranged in the pump head, and the pump head is provided with a water inlet and a water outlet; and

[0013] The pump cover is communicated with the pump head.

[0014] Furthermore, a one-way valve is provided in the pump cover.

[0015] Furthermore, the self-priming electronic water pump further comprises: a driving motor;

[0016] The driving motor is located in the cylinder below the pump head; and

[0017] A sealing front flange is provided between the barrel and the pump head.

[0018] Furthermore, the shaft of the drive motor is connected to the rotating shaft.

[0019] Furthermore, the self-priming electronic water pump further comprises: a control module;

[0020] The control module is electrically connected to the drive motor; and

[0021] The control module is configured to obtain water volume information in the pump body and control the forward and reverse rotation of the drive motor.

[0022] On the other hand, the present invention also provides a self-priming electronic water pump, comprising: a pump body, an impeller being arranged inside the pump body; and

[0023] A driving gear and a driven gear disposed in the pump body; and

[0024] The impeller is also provided with a rotating shaft connected to the driving gear, and a one-way bearing is sleeved between the driving gear and the rotating shaft;

[0025] A driving motor, the shaft of which is connected to the rotating shaft;

[0026] a control module electrically connected to the drive motor; and

[0027] The control module is configured to obtain water amount information in the pump body, so as to control the drive motor to rotate in the forward direction when there is no water in the pump body, so as to drive the driving gear and the driven gear to engage and rotate, thereby sucking water into the pump body.

[0028] Furthermore, the control module is also configured to control the drive motor to rotate in the reverse direction when the amount of water in the pump body reaches a preset value, thereby only driving the impeller to rotate to achieve impeller pumping of water.

[0029] Furthermore, the pump body comprises a pump cover and a pump head from top to bottom;

[0030] The driving gear and the driven gear are both arranged in the pump cover;

[0031] The impeller is arranged in the pump head, and the pump head is provided with a water inlet and a water outlet; and

[0032] The pump cover is communicated with the pump head.

[0033] Furthermore, a one-way valve is provided in the pump cover.

[0034] The beneficial effect of the utility model is that the self-priming electronic water pump of the utility model first rotates the rotating shaft forward when there is no water in the pump chamber, thereby driving the driving gear to rotate, and then meshing with the driven gear to achieve a gear pump effect, pumping the pump chamber into a negative pressure state, sucking water into the pump body, and after the water level in the pump chamber reaches a preset water level, the rotating shaft rotates in the reverse direction, causing the driving gear to stop rotating and only driving the impeller to rotate. At this time, the centrifugal pump effect is achieved, so that the pump body can continuously pump water, thereby solving the technical problem that the existing self-priming pump needs to be manually primed before starting.

[0035] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of the three-dimensional structure of a self-priming electronic water pump according to some embodiments is shown;

[0039] Figure 2 shows a schematic cross-sectional structure diagram of a self-priming electronic water pump involved in some embodiments;

[0040] Figure 3 A schematic diagram of the explosion structure of a pump body in a self-priming electronic water pump according to some embodiments is shown.

[0041] In the picture:

[0042] Pump body 1, water inlet 10, water outlet 11, impeller 12, pump cover 13, pump head 14, driving gear 15, driven gear 16, one-way bearing 17, rotating shaft 18, one-way valve 19;

[0043] Cylinder body 2, driving motor 3. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0045] like Figures 1 to 3 As shown, at least one embodiment provides a self-priming electronic water pump, comprising: a pump body 1, an impeller 12 is provided inside the pump body 1; and a driving gear 15 and a driven gear 16 are provided in the pump body 1; and the impeller 12 is further provided with a rotating shaft 18 connected to the driving gear 15, and a one-way bearing 17 is sleeved between the driving gear 15 and the rotating shaft 18; wherein the driving gear 15 is adapted to rotate when the rotating shaft 18 rotates in the forward direction, so as to engage and rotate with the driven gear 16, thereby pumping water into the pump body 1.

[0046] In some embodiments, when there is no water in the pump chamber, the rotating shaft 18 is first rotated in the forward direction to drive the driving gear 15 to rotate, and then the gear pump effect is achieved after engaging with the driven gear 16, the pump chamber is pumped into a negative pressure state, and water is sucked into the pump body 1. After the water level in the pump chamber reaches a preset water level, the rotating shaft 18 is rotated in the reverse direction to stop the driving gear 15 from rotating, and only the impeller 12 is driven to rotate. At this time, the centrifugal pump effect is achieved so that the pump body 1 can continuously pump water, thereby solving the technical problem that the existing self-priming pump needs to be manually primed before starting.

[0047] In some embodiments, the pump body 1 comprises a pump cover 13 and a pump head 14 from top to bottom; the driving gear 15 and the driven gear 16 are both arranged in the pump cover 13; the impeller 12 is arranged in the pump head 14, and the pump head 14 is provided with a water inlet 10 and a water outlet 11; and the pump cover 13 is connected to the pump head 14.

[0048] Specifically, the driven gear 16 is mounted on the pump cover 13 through a corresponding latch shaft and meshes with the driving gear 15. Since the pump cover 13 and the pump head 14 are connected, when the driving gear 15 and the driven gear 16 mesh and rotate, the gas in the pump head 14 is continuously sucked, so that the pump head 14 is in a negative pressure state, and then water is drawn into the pump head 14 from the water inlet 10 on the pump head 14, thereby achieving the goal of not having to manually fill the pump.

[0049] In some embodiments, a one-way valve 19 is further provided in the pump cover 13 to ensure that the gas can be discharged from the one-way valve 19 when the driving gear 15 rotates, but after the driving gear 15 stops rotating, no gas and / or liquid will overflow from here, thereby ensuring the stability of the water pumping when the impeller 12 rotates subsequently.

[0050] In some embodiments, the self-priming electronic water pump further comprises: a drive motor 3; the drive motor 3 is located in the barrel 2 below the pump head 14; and a sealing front flange is provided between the barrel 2 and the pump head 14. The shaft of the drive motor 3 is connected to the rotating shaft 18.

[0051] In some embodiments, the self-priming electronic water pump also includes: a control module; the control module is electrically connected to the drive motor 3; and the control module is suitable for obtaining water amount information in the pump body 1, so as to control the drive motor 3 to rotate forward when there is no water in the pump body 1, so as to drive the driving gear 15 and the driven gear 16 to engage and rotate, thereby sucking water into the pump body 1; and when the water amount in the pump body 1 reaches a preset value, the control module controls the drive motor 3 to rotate in the opposite direction, thereby only driving the impeller 12 to rotate, so as to realize the impeller 12 pumping water.

[0052] As an optional embodiment, the control module includes but is not limited to using an STM-32 single-chip microcomputer, and the pump body 1 includes but is not limited to providing sensors such as a liquid level sensor to detect water volume information in the pump body 1.

[0053] To sum up, the self-priming electronic water pump of the present invention first rotates the rotating shaft 18 in the forward direction when there is no water in the pump chamber, thereby driving the driving gear 15 to rotate, and then meshing with the driven gear 16 to achieve the gear pump effect, pumping the pump chamber into a negative pressure state, sucking water into the pump body 1, and after the water level in the pump chamber reaches a preset water level, the rotating shaft 18 rotates in the reverse direction, so that the driving gear 15 stops rotating, and only drives the impeller 12 to rotate. At this time, the centrifugal pump effect is achieved so that the pump body 1 can pump water continuously, thereby solving the technical problem that the existing self-priming pump needs to be manually primed before starting.

[0054] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A self-priming electronic water pump, characterized in that: include: a pump body, wherein an impeller is provided inside the pump body; and A driving gear and a driven gear disposed in the pump body; and The impeller is also provided with a rotating shaft connected to the driving gear, and a one-way bearing is sleeved between the driving gear and the rotating shaft; The driving gear is adapted to rotate when the rotating shaft rotates in the forward direction, so as to engage and rotate with the driven gear, thereby pumping water into the pump body.

2. The self-priming electronic water pump according to claim 1, characterized in that: The pump body comprises a pump cover and a pump head from top to bottom; The driving gear and the driven gear are both arranged in the pump cover; The impeller is arranged in the pump head, and the pump head is provided with a water inlet and a water outlet; and The pump cover is communicated with the pump head.

3. The self-priming electronic water pump according to claim 2, characterized in that: A one-way valve is also provided in the pump cover.

4. The self-priming electronic water pump according to claim 3, characterized in that: Also includes: Drive motor; The driving motor is located in the cylinder below the pump head; as well as A sealing front flange is provided between the barrel and the pump head.

5. The self-priming electronic water pump according to claim 4, characterized in that: The shaft of the driving motor is connected to the rotating shaft.

6. The self-priming electronic water pump according to claim 5, characterized in that: Also includes: Control module; The control module is electrically connected to the drive motor; as well as The control module is configured to obtain water volume information in the pump body and control the forward and reverse rotation of the drive motor.

7. A self-priming electronic water pump, characterized in that: include: a pump body, wherein an impeller is provided inside the pump body; and A driving gear and a driven gear disposed in the pump body; and The impeller is also provided with a rotating shaft connected to the driving gear, and a one-way bearing is sleeved between the driving gear and the rotating shaft; A driving motor, the shaft of which is connected to the rotating shaft; a control module electrically connected to the drive motor; and The control module is configured to obtain water amount information in the pump body, so as to control the drive motor to rotate in the forward direction when there is no water in the pump body, so as to drive the driving gear and the driven gear to engage and rotate, thereby sucking water into the pump body.

8. The self-priming electronic water pump according to claim 7, characterized in that: The control module is further configured to control the drive motor to rotate in the reverse direction when the amount of water in the pump body reaches a preset value, thereby only driving the impeller to rotate to achieve impeller pumping of water.

9. The self-priming electronic water pump according to claim 7, characterized in that: The pump body comprises a pump cover and a pump head from top to bottom; The driving gear and the driven gear are both arranged in the pump cover; The impeller is arranged in the pump head, and the pump head is provided with a water inlet and a water outlet; and The pump cover is communicated with the pump head.

10. The self-priming electronic water pump according to claim 9, characterized in that: A one-way valve is also provided in the pump cover.

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