Intelligent self-priming water pump and pump head structure thereof

Abstract

The utility model provides an intelligent self-priming water pump and a pump head structure thereof, the pump head structure comprises a pump shell, the pump shell is provided with a water inlet and a water outlet, the pump shell is provided with a first channel, a turning channel, a pump cavity and a second channel, one end of the first channel is communicated with the water inlet, the other end of the first channel is communicated with the turning channel, and the other end of the first channel is communicated with the water outlet. The end, away from the first channel, of the turning channel is communicated with a pump cavity used for containing an impeller, the pump cavity is communicated with a second channel, a partition plate is arranged between the turning channel and the second channel, the end, away from the pump cavity, of the second channel is communicated with a water outlet, and a water injection opening is formed in the second channel. The water filling nozzle is connected with a fixing cover, and the purpose of improving suction force is achieved.

Description

Technical Field

[0001] This utility model relates to water pumps, and more particularly to an intelligent self-priming water pump and its pump head structure. Background Technology

[0002] Currently, Chinese patent CN219888277U discloses a pneumatic self-priming water pump with heat dissipation function, specifically relating to the field of water pumps. It includes a base, a pneumatic motor fixedly mounted on the upper end of the support base, an impeller fixedly connected to the output shaft of the pneumatic motor inside the water pump housing, an air inlet and an air outlet at one end of the pneumatic motor, a water inlet and a water outlet on the water pump housing, and an auxiliary heat dissipation component on the outside of the pneumatic motor.

[0003] It does not produce sparks during use, so there is no risk of explosion, making it highly safe and suitable for use in flammable and explosive workshops. Moreover, the pneumatic motor produces less noise compared to the electric motor. Furthermore, an auxiliary heat dissipation component is installed on the outside of the pneumatic motor, which uses the air intake of the pneumatic motor for blowing and cooling, thereby improving the heat dissipation efficiency of the pneumatic motor and extending its service life. The setting of pressure plate and clamping spring facilitates the storage and organization of air pipes when the equipment is moved.

[0004] However, the distance between the inlet and the impeller of this type of pneumatic self-priming water pump is relatively short, that is, the inlet pipe is relatively short, resulting in a smaller pressure difference. Therefore, the suction force at the inlet is relatively weak and it is difficult to meet production needs. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an intelligent self-priming water pump and its pump head structure to improve the suction force of the inlet and meet production needs.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a pump head structure, including a pump casing, an inlet and an outlet, a first channel, a turning channel, a pump chamber, and a second channel, one end of the first channel being connected to the inlet, the other end of the first channel being connected to the turning channel, the end of the turning channel away from the first channel being connected to the pump chamber for placing the impeller, the pump chamber being connected to the second channel, a partition being provided between the turning channel and the second channel, the end of the second channel away from the pump chamber being connected to the outlet, a water inlet being provided on the second channel, and a fixed cover being connected to the water inlet.

[0007] To achieve the above technical solution, water is first poured into the second channel from the water inlet, filling the first channel, the turning channel, the pump chamber, and the second channel. When the impeller in the pump chamber rotates, it can generate negative pressure in the turning channel. The turning channel transmits the negative pressure to the water inlet through the first channel. Due to the setting of the first channel and the turning channel, the distance between the pump chamber and the water inlet is greatly increased, thereby generating a great lifting suction to meet production needs. The water passes through the water inlet, the first channel, the turning channel, the pump chamber, and the second channel in sequence, and is finally discharged from the water outlet.

[0008] As a preferred embodiment of this utility model, the pump casing is provided with a one-way valve, which is located between the first channel and the turning channel.

[0009] By implementing the above technical solution, water is less likely to flow back.

[0010] As a preferred embodiment of this utility model, the one-way valve includes a support plate, a connecting hole, a connecting sleeve, an elastic element, and a plunger. The support plate is fixed to the inner wall of the pump housing, the connecting hole is opened on the support plate, the connecting sleeve is connected to the pump housing, one end of the plunger is slidably connected to the connecting sleeve, and the other end of the plunger blocks the connecting hole. The two ends of the elastic element are respectively connected to the plunger and the connecting sleeve.

[0011] To achieve the above technical solution, water is drawn into the first channel from the inlet due to negative pressure, which lifts the plunger and compresses the elastic element. The water then passes through the connecting hole and enters the turning channel. When the impeller stops rotating, water cannot enter the first channel due to negative pressure. The elastic force of the elastic element causes the plunger to block the connecting hole, thereby preventing water from flowing back from the outlet to the inlet.

[0012] As a preferred embodiment of this utility model, the pump casing is provided with an adjustment hole, and the connecting sleeve is threaded into the adjustment hole.

[0013] To achieve the above technical solution, the connecting sleeve is rotated, and the self-locking property of the thread enables the connecting sleeve to self-position, thereby adjusting the elastic force of the elastic element and extending its service life.

[0014] In a preferred embodiment of this utility model, a sealing ring is fixedly connected to the outer wall of the plunger. The sealing ring is used to abut against the support plate, and the inner diameter of the sealing ring is larger than the diameter of the connecting hole.

[0015] By implementing the above technical solution, the sealing ring can improve the sealing performance between the plunger and the connecting hole.

[0016] In a preferred embodiment of this utility model, the end of the plunger away from the connecting sleeve is fixedly connected to a sliding plate, and the sliding plate is slidably connected in the communicating hole.

[0017] The above technical solution enables the plunger to move more smoothly, allowing water to bypass the slide plate after passing through the connecting hole and enter the turning channel.

[0018] As a preferred embodiment of this utility model, the pump casing is provided with a rotary channel, one end of which is connected to a second channel and the other end of which is connected to a water outlet. The pump casing is provided with a detection hole that is connected to the rotary channel, and a pressure sensor is connected to the detection hole.

[0019] By implementing the above technical solution, the pressure sensor can detect water pressure.

[0020] In a preferred embodiment of this utility model, a magnet is connected to the plunger, and a reed switch is connected to the inner wall of the connecting sleeve. The magnet is used to cooperate with the reed switch.

[0021] To achieve the above technical solution, the plunger moves along its own length due to the impact force of the water flow, and the magnet cooperates with the reed switch to detect the position of the plunger.

[0022] This utility model also discloses an intelligent self-priming water pump, including a motor, an impeller, and a pump head structure. The motor is fixedly connected to the outer wall of the pump casing through a support base. The impeller is rotatably connected to the pump cavity and driven by the motor. A detection box is fixedly connected to the motor.

[0023] To achieve the above technical solution, the motor starts, the impeller rotates, and the water passes through the inlet, the first channel, the turning channel, the pump chamber, and the second channel in sequence, and is finally discharged from the outlet. The electrical signals from the pressure sensor and the reed switch can be displayed on the device in the detection box, making it more intelligent. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external structure of Example 1;

[0025] Figure 2 A schematic diagram illustrating the location of the pressure sensor;

[0026] Figure 3 This is a schematic diagram showing the location of the first passage;

[0027] Figure 4 To illustrate the location of the second channel;

[0028] Figure 5 A schematic diagram illustrating the external structure of the plunger;

[0029] Figure 6 To illustrate the structure of the fixed cover;

[0030] Figure 7 A schematic diagram illustrating the external structure of Embodiment 2.

[0031] Reference numerals: 1. Pump casing; 11. Inlet; 12. Outlet; 21. First channel; 22. Turning channel; 23. Pump chamber; 24. Second channel; 25. Inlet; 26. Fixed cover; 27. Baffle; 3. One-way valve; 31. Support plate; 32. Connecting hole; 33. Connecting sleeve; 34. Elastic element; 35. Plunger; 4. Adjusting hole; 5. Sealing ring; 61. Slide plate; 62. Sliding sleeve; 71. Magnet; 72. Reed switch; 81. Rotary channel; 82. Detection hole; 83. Pressure sensor; 91. Motor; 92. Detection box; 93. Display. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0033] Example 1: A pump head structure includes a pump housing 1, on which an inlet 11 and an outlet 12 are provided, with the inlet 11 located below the outlet 12.

[0034] The pump casing 1 has a first channel 21, a turning channel 22, a pump chamber 23, and a second channel 24. One end of the first channel 21 is connected to the inlet 11, and the other end is connected to the turning channel 22. The end of the turning channel 22 away from the first channel 21 is connected to the pump chamber 23, which houses the impeller (not shown in the figure). The pump chamber 23 is connected to the second channel 24. A partition 27 is provided between the turning channel 22 and the second channel 24. The end of the second channel 24 away from the pump chamber 23 is connected to the outlet 12. A water inlet 25 is provided on the second channel 24, and a fixed cover 26 is connected to the water inlet 25. The second channel 24 is located above the pump chamber 23.

[0035] A one-way valve 3 is installed inside the pump casing 1, located between the first channel 21 and the turning channel 22. The one-way valve 3 includes a support plate 31, a connecting hole 32, a connecting sleeve 33, an elastic element 34, and a plunger 35. The support plate 31 is fixed to the inner wall of the pump casing 1, with the first channel 21 on one side of the support plate 31 and the turning channel 22 on the other side.

[0036] A connecting hole 32 is provided in the middle of the support plate 31 to connect the first channel 21 and the turning channel 22.

[0037] An adjustment hole 4 is provided on the pump casing 1, and a connecting sleeve 33 is threaded into the adjustment hole 4. The adjustment hole 4, the connecting sleeve 33, and the connecting hole 32 are all coaxially arranged.

[0038] The upper end of the plunger 35 is slidably connected to the connecting sleeve 33, and the lower end of the plunger 35 is used to block the connecting hole 32. The two ends of the elastic element 34 are connected to the plunger 35 and the connecting sleeve 33 respectively. The elastic element 34 is a spring.

[0039] To improve sealing, a rubber sealing ring 5 is fixedly connected to the outer wall of the plunger 35. The sealing ring 5 is used to abut against the support plate 31, and the inner diameter of the sealing ring 5 is larger than the diameter of the connecting hole 32.

[0040] A sliding plate 61 is fixedly connected to the end of the plunger 35 away from the connecting sleeve 33, and four sliding plates 61 are evenly distributed along the axis of the plunger 35. A sliding sleeve 62 is fixedly connected to the inner wall of the connecting hole 32, and the sliding plates 61 slide against the inner wall of the sliding sleeve 62 to extend service life. When the sliding sleeve 62 wears out, it can be used again simply by replacing the sliding sleeve 62.

[0041] A magnet 71 is fixedly connected to one end of the plunger 35 near the connecting sleeve 33. A reed switch 72 is connected to the inner wall of the connecting sleeve 33. The magnet 71 is used to cooperate with the reed switch 72. The magnet 71 is a magnet.

[0042] First, water is poured into the second channel 24 through the water inlet 25, filling the first channel 21, the turning channel 22, the pump chamber 23, and the second channel 24. Then, the fixing cover 26 is tightened. When the impeller rotates, it generates negative pressure in the turning channel 22. The turning channel 22 transmits this negative pressure to the water inlet 11 through the first channel 21. Due to the arrangement of the first channel 21 and the turning channel 22, the distance between the pump chamber 23 and the water inlet 11 is significantly increased, thereby generating a large lifting suction force to meet production needs. The water passes sequentially through the water inlet 11, the first channel 21, the turning channel 22, the pump chamber 23, and the second channel 24, and is finally discharged from the water outlet 12.

[0043] A rotary channel 81 is provided on the pump casing 1. One end of the rotary channel 81 is connected to the second channel 24, and the other end of the rotary channel 81 is connected to the outlet 12. A detection hole 82 is provided on the pump casing 1, which is connected to the rotary channel 81. A pressure sensor 83 is fixedly connected to the detection hole 82.

[0044] During this process, water enters the first channel 21 through the inlet 11, lifting the plunger 35. The magnet 71 aligns with the reed switch 72, thus detecting the position of the plunger 35. After passing through the connecting hole 32, the water enters the turning channel 22, and then enters the pump chamber 23. Through the action of the impeller, the water is thrown into the second channel 24, and then enters the rotary channel 81. At this time, the water pressure can be detected by the pressure sensor 83, and finally it is discharged from the outlet 12.

[0045] Example 2: An intelligent self-priming water pump includes a motor 91, an impeller, and a pump head structure as described in Example 1. The motor 91 is fixedly connected to the outer wall of the pump casing 1 via a support base. The impeller is rotatably connected to the pump chamber 23 and driven by the motor 91. A detection box 92 is fixedly connected to the motor 91, and the detection box 92 has a display 93. The display 93 is electrically connected to a pressure sensor 83 and a reed switch 72.

[0046] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A pump head structure, comprising a pump casing (1), wherein the pump casing (1) is provided with an inlet (11) and an outlet (12), characterized in that: The pump casing (1) is provided with a first channel (21), a turning channel (22), a pump chamber (23), and a second channel (24). One end of the first channel (21) is connected to the inlet (11), and the other end of the first channel (21) is connected to the turning channel (22). The end of the turning channel (22) away from the first channel (21) is connected to the pump chamber (23) for placing the impeller. The pump chamber (23) is connected to the second channel (24). There is a partition (27) between the turning channel (22) and the second channel (24). The end of the second channel (24) away from the pump chamber (23) is connected to the outlet (12). A water inlet (25) is provided on the second channel (24), and a fixed cover (26) is connected to the water inlet (25).

2. The pump head structure according to claim 1, characterized in that: The pump casing (1) is equipped with a one-way valve (3), which is located between the first channel (21) and the turning channel (22).

3. The pump head structure according to claim 2, characterized in that: The one-way valve (3) includes a support plate (31), a connecting hole (32), a connecting sleeve (33), an elastic element (34), and a plunger (35). The support plate (31) is fixed on the inner wall of the pump housing (1). The connecting hole (32) is opened on the support plate (31). The connecting sleeve (33) is connected to the pump housing (1). One end of the plunger (35) is slidably connected in the connecting sleeve (33), and the other end of the plunger (35) blocks the connecting hole (32). Both ends of the elastic element (34) are connected to the plunger (35) and the connecting sleeve (33) respectively.

4. The pump head structure according to claim 3, characterized in that: The pump casing (1) is provided with an adjustment hole (4), and the connecting sleeve (33) is threaded into the adjustment hole (4).

5. A pump head structure according to claim 4, characterized in that: A sealing ring (5) is fixedly connected to the outer wall of the plunger (35). The sealing ring (5) is used to abut against the support plate (31). The inner diameter of the sealing ring (5) is larger than the diameter of the connecting hole (32).

6. A pump head structure according to claim 3, characterized in that: The plunger (35) is fixedly connected to a slide plate (61) at the end away from the connecting sleeve (33), and the slide plate (61) is slidably connected in the connecting hole (32).

7. The pump head structure according to claim 1, characterized in that: The pump casing (1) is provided with a rotary channel (81), one end of which is connected to the second channel (24) and the other end of which is connected to the outlet (12). The pump casing (1) is provided with a detection hole (82) connected to the rotary channel (81) and a pressure sensor (83) is connected to the detection hole (82).

8. A pump head structure according to claim 3, characterized in that: A magnet (71) is connected to the plunger (35), and a reed switch (72) is connected to the inner wall of the connecting sleeve (33). The magnet (71) is used to cooperate with the reed switch (72).

9. An intelligent self-priming water pump, comprising a motor (91) and an impeller, characterized in that: It also includes a pump head structure as described in any one of claims 1-8, wherein the motor (91) is fixedly connected to the outer wall of the pump housing (1) via a support base, the impeller is rotatably connected to the pump chamber (23) and driven by the motor (91), and a detection box (92) is fixedly connected to the motor (91).

Images