A flow valve structure for a water pump controller

Abstract

This utility model provides a flow valve structure for a water pump controller, including a valve body, an inlet, a receiving cavity, and a flow detection hole. The inlet, receiving cavity, and flow detection hole are all located on the valve body and communicate with the receiving cavity. A water-passing plate and a fixing ring are installed inside the flow detection hole. A reed switch is connected to the valve body. A valve core, located between the fixing ring and the water-passing plate, is slidably connected inside the flow detection hole. The valve core includes a support column, a push plate, and a stop rod. The support column, push plate, and stop rod are integrally molded from plastic. The water-passing plate supports the push plate. A magnet for cooperating with the reed switch is connected to the support column. The stop rod abuts against the fixing ring to prevent the valve core from disengaging from the flow detection hole. A sealing plate located inside the fixing ring is connected to the support column. When the push plate separates from the water-passing plate, the magnet and reed switch are misaligned; when the push plate contacts the water-passing plate, the magnet aligns with the reed switch. This achieves the goal of reducing production costs and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to flow valves, and more particularly to a flow valve structure for a water pump controller. Background Technology

[0002] like Figure 1 , Figure 2 and Figure 3 As shown, the valve core of the existing flow valve is a component that slides up and down within the valve body. This valve core is primarily made of copper and consists of multiple parts. Specifically, it includes: a support column 1, a sealing plate 2, a push plate 3, a connecting rod 4, a sliding rod 5, and a magnet 6.

[0003] The upper end of the support column 1 is integrated with the disc-shaped sealing plate 2, while the lower end is integrated with the similarly disc-shaped push plate 3. A tapered ramp is also provided between the support column 1 and the sealing plate 2. To fix other components to the support column 1, multiple holes are provided on its side wall: one threaded hole is used to fix the connecting rod 4 to the middle position of the support column 1, and the magnet 6 is fixed to the end of the connecting rod 4; another round hole is used to insert the slide rod 5, so that it passes through the round hole and is fixed to the support column 1 in the middle, with both ends extending out of the round hole.

[0004] The existing flow valve cores have the following disadvantages: The manufacturing process is complex and assembly is cumbersome: the valve core consists of multiple independent components (connecting rod, slide rod), which need to be fixed to the support column separately through threaded holes and round holes. This combination and fixing method of multiple components makes the production process cumbersome, the assembly time-consuming, and the production efficiency low.

[0005] High manufacturing costs: The support columns, sealing plates, push plates, and connecting rods are all made of copper, and copper is expensive, resulting in high overall production costs. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a flow valve structure for a water pump controller, so as to improve production efficiency and reduce production costs.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a water pump controller flow valve structure, including a valve body, a water inlet, a receiving cavity, and a flow detection hole. The water inlet, the receiving cavity, and the flow detection hole are all opened on the valve body. The water inlet and the flow detection hole are all connected to the receiving cavity. A water-passing plate and a fixing ring are provided in the flow detection hole. A connecting hole is opened on the water-passing plate. The two ends of the connecting hole are respectively connected to the receiving cavity and the flow detection hole. A reed switch is connected to the valve body. A valve core is slidably connected in the flow detection hole between the fixing ring and the water-passing plate. The valve core includes a support column, a push plate, a sealing plate, and a stop rod. The support column, the push plate, and the stop rod are all integrally molded from plastic. The water-passing plate is used to support the push plate. A magnet for cooperating with the reed switch is connected to the support column. The stop rod is used to abut against the fixing ring to prevent the valve core from coming out of the flow detection hole. The sealing plate is connected to the support column and is located inside the fixing ring. The valve core slides within the flow detection orifice, and the magnet and the reed switch are either aligned or misaligned.

[0008] To achieve the above technical solution, when water flows into the receiving cavity through the inlet, the dynamic pressure of the water flow pushes the valve core's push plate through the connecting hole, causing the valve core to overcome its own weight and slide axially within the flow detection hole. This sliding causes relative displacement between the magnet and the reed switch, thereby changing the opening and closing state of the reed switch to detect water flow. Integrating the support column, push plate, and stop rod into a single piece made of plastic significantly simplifies the production and assembly process, reduces manufacturing costs, and improves the valve core's sensitivity, thus achieving precise control of the water pump's operation.

[0009] As a preferred embodiment of this utility model, a guide rod is connected to the inner wall of the flow detection hole, the length direction of the guide rod is parallel to the axial direction of the flow detection hole, and a guide groove is provided on the side wall of the push plate, which is slidably connected to the guide rod.

[0010] To achieve the above technical solution, when the valve core slides axially along the flow detection orifice under the action of water flow, the guide groove on the side wall of the push plate and the guide rod on the inner wall of the flow detection orifice always maintain a sliding fit. This effectively constrains the movement trajectory of the valve core, preventing it from rotating during reciprocating motion, thereby ensuring the constant orientation of the magnet on the valve core and maintaining a precise correspondence with the reed switch, thus improving the stability and reliability of the flow detection signal.

[0011] As a preferred embodiment of this utility model, a water-passing surface is provided on the side wall of the push plate.

[0012] To achieve the above technical solution, when water impacts the valve core, the water-passing surface on the push plate sidewall allows the water flow to smoothly bypass the push plate, reducing the positive impact resistance generated by the water flow and increasing the water flow rate exiting from the flow detection hole. Under low flow conditions, this improves the starting sensitivity and detection accuracy of the flow valve. As a preferred embodiment of this utility model, the push plate has a connecting blind hole corresponding to the connecting hole on the side facing the water-passing plate, and the connecting blind hole passes through the support column.

[0013] To achieve the above technical solution, a connecting hole is made in the water-passing plate, and a corresponding connecting blind hole is made in the push plate. This not only reduces the overall weight of the valve core, but also allows water to flow through the connecting hole into the connecting blind hole, thereby generating a rapid pushing force on the valve core. While achieving weight reduction, it effectively utilizes hydraulic power to ensure that the valve core can move quickly, improving the system's response speed.

[0014] As a preferred embodiment of this utility model, the push plate has a weight-reducing recess on the side facing the water-passing plate.

[0015] To achieve the above technical solution, weight-reducing recesses are created on the push plate, reducing the material volume of the valve core itself. This effectively reduces the overall mass and inertia of the valve core, enabling it to start with less water flow energy and respond more quickly to instantaneous changes in flow rate. This improves the detection sensitivity and response speed of the flow valve, saves production materials, and further reduces costs.

[0016] As a preferred embodiment of this utility model, a reinforcing member is provided between the support column and the push plate.

[0017] The above technical solution is achieved by integrating a reinforcing member between the support column and the push plate, thereby improving the structural strength and rigidity of the connection between these two key components.

[0018] As a preferred embodiment of this utility model, a connecting protrusion is integrally connected to the side wall of the support column, and a positioning hole is provided on the connecting protrusion, and the magnet is fixed in the positioning hole.

[0019] To achieve the above technical solution, positioning holes are pre-drilled on the connecting protrusion of the integrated connection, and the magnet is fixed in these holes during assembly. This simplifies the magnet installation process, ensures the accuracy and stability of the magnet's position, and guarantees precise engagement with the reed switch.

[0020] In a preferred embodiment of this utility model, the inner diameter of the opening of the positioning hole is smaller than the inner diameter of the bottom wall of the positioning hole, the magnet is arranged in a frustum shape, and the side wall of the magnet abuts against the inner wall of the positioning hole.

[0021] To achieve the above technical solution, this structure integrates the valve core molding and magnet fixing into one unit through a single injection molding process, greatly simplifying the production process and improving production efficiency. Simultaneously, the physical locking structure formed after the plastic cools and solidifies securely encapsulates the magnet, eliminating the risk of the magnet loosening or falling off under any operating conditions, and ensuring the permanent stability and high reliability of the sensing function.

[0022] As a preferred embodiment of this utility model, a one-way valve is provided on the water inlet. The one-way valve includes a connecting plate and an extension rod. The extension rod is fixed to the connecting plate and slidably connected to the inner wall of the water inlet. The connecting plate is located inside the receiving cavity and is used to block the end of the water inlet near the receiving cavity.

[0023] To achieve the above technical solution, a one-way valve is installed at the inlet. When the water pump starts, the water pressure pushes the connecting plate to open the inlet channel; when the water pump stops or backflow occurs, the water pressure pushes the connecting plate towards the inlet port and seals it. This achieves one-way water flow, effectively preventing backflow in the pipeline, maintaining the pressure within the valve body, and thus ensuring the normal operation of the water pump system and water safety.

[0024] As a preferred embodiment of this utility model, the connecting plate has a positioning ring groove on the side facing the water inlet, and a sealing ring for contacting the end face of the water inlet near the receiving cavity is fixedly connected in the positioning ring groove.

[0025] To achieve the above technical solution, when the one-way valve is closed, the sealing ring contacts and is compressed before the connecting plate body. Utilizing the elastic deformation capability of the sealing ring achieves a more reliable flexible seal, effectively compensating for minor unevenness of the contact surface, eliminating minor leaks, and improving the pressure holding capacity and operating efficiency of the entire system. Attached Figure Description

[0026] Figure 1 This is a cross-sectional schematic diagram of the prior art; Figure 2 This is a schematic diagram of the existing valve core structure; Figure 3 This is a schematic diagram of the existing valve core structure; Figure 4 This is a schematic diagram of the external structure of this utility model; Figure 5 This is a schematic diagram of the external structure of this utility model; Figure 6 This is a schematic diagram of the internal structure of the present invention; Figure 7 To illustrate the structure of the valve core; Figure 8 To illustrate the structure of the valve core; Figure 9 This is a schematic diagram illustrating the connection structure between the sealing plate and the valve core; Figure 10 This is a schematic diagram illustrating the structure of a one-way valve.

[0027] Reference numerals: 1. Support column; 2. Sealing plate; 3. Push plate; 4. Connecting rod; 5. Slide rod; 6. Magnet; 7. Valve body; 8. Inlet; 9. Receiving cavity; 11. Flow detection hole; 12. Mounting pipe; 14. Check valve; 15. Connecting plate; 16. Extension rod; 17. Positioning ring groove; 18. Sealing ring; 19. Water passage plate; 20. Fixing ring; 21. Reed switch; 22. Connecting protrusion; 23. Stop bar; 24. Magnet; 25. Positioning hole; 26. Guide rod; 27. Guide groove; 28. Water passage surface; 29. ​​Connecting hole; 30. Connecting blind hole; 31. Weight reduction recess; 32. Reinforcing member; 33. Valve core. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 4 To be continued Figure 10 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0029] A flow valve structure for a water pump controller includes a valve body 7, an inlet 8, a receiving cavity 9, and a flow detection hole 11. The inlet 8, the receiving cavity 9, and the flow detection hole 11 are all located on the valve body 7. The receiving cavity 9 is located in the middle of the valve body 7, the inlet 8 is located at the lower end of the valve body 7, and the flow detection hole 11 is located at the upper end of the valve body 7. Both the inlet 8 and the flow detection hole 11 communicate with the receiving cavity 9. The axes of the inlet 8 and the flow detection hole 11 are collinear.

[0030] An installation tube 12 is fixedly connected to the side wall of the receiving cavity 9 by bolts, and one end of the installation tube 12 is inserted into the receiving cavity 9.

[0031] A one-way valve 14 is installed on the inlet 8. The one-way valve 14 includes an integrated connecting plate 15 and an extension rod 16. The connecting plate 15 is disc-shaped, and the extension rods 16 are fixed to the connecting plate 15. Multiple extension rods 16 are evenly distributed along the axis of the connecting plate 15. The extension rods 16 are slidably connected to the inner wall of the inlet 8, and the outer wall of the extension rods 16 is in contact with the inner wall of the inlet 8. The connecting plate 15 is located inside the receiving cavity 9 and is used to seal the end of the inlet 8 near the receiving cavity 9.

[0032] As water flows from the inlet 8 into the receiving cavity 9, the water flow pushes the connecting plate 15 upward, causing the upper surface of the connecting plate 15 to contact the outer wall of the mounting pipe 12, so as to prevent the extension rod 16 from coming out of the inlet 8.

[0033] A positioning ring groove 17 is provided on the side of the connecting plate 15 facing the water inlet 8, and the positioning ring groove 17 is coaxially arranged with the connecting plate 15. A sealing ring 18 is fixedly connected in the positioning ring groove 17 to abut against the end face of the water inlet 8 near the receiving cavity 9. The sealing ring 18 is an O-ring.

[0034] A water-passing plate 19 and a retaining ring 20 are provided inside the flow detection hole 11. The water-passing plate 19 is located near the lower end of the flow detection hole 11, and the retaining ring 20 is located near the upper end of the flow detection hole 11. The water-passing plate 19 is integrally connected to the flow detection hole 11, and the retaining ring 20 is fixedly connected to the flow detection hole 11. A reed switch 21 is fixedly connected to the valve body 7.

[0035] A valve core 33 is slidably connected within the flow detection hole 11, located between the fixed ring 20 and the water-passing plate 19. The valve core 33 includes a support column 1, a push plate 3, a connecting protrusion 22, a sealing plate 2, and a stop rod 23. The support column 1, push plate 3, connecting protrusion 22, and stop rod 23 are integrally molded from plastic. The push plate 3 is connected to the lower end of the support column 1, and the water-passing plate 19 supports the push plate 3. A magnet 24 for cooperating with a reed switch 21 is connected to the connecting protrusion 22. The magnet 24 is a magnet. The connecting protrusion 22 is located on the side wall of the support column 1.

[0036] The stop bar 23 is connected to the side wall of the support column 1 and is used to abut against the lower surface of the fixing ring 20. A sealing plate 2, made of copper, is threadedly connected to the support column 1 and located inside the fixing ring 20.

[0037] A positioning hole 25 is provided on the connecting protrusion 22, and the magnet 24 is fixed in the positioning hole 25. The inner diameter of the opening of the positioning hole 25 is smaller than the inner diameter of the bottom wall of the positioning hole 25. The magnet 24 is arranged in a frustum shape, and the side wall of the magnet 24 abuts against the inner wall of the positioning hole 25.

[0038] Before injection molding the valve core 33, the frustum-shaped magnet 24 is placed as a pre-installed insert in the designated position of the mold, and then injection molding is performed. The molten plastic will cover the side walls and bottom walls of the magnet 24 and solidify, thereby forming a positioning hole 25 structure with an opening inner diameter smaller than the inner diameter of the bottom wall of the magnet 24.

[0039] A guide rod 26 is integrally connected to the inner wall of the flow detection hole 11, and the length direction of the guide rod 26 is parallel to the axial direction of the flow detection hole 11. A guide groove 27 is provided on the side wall of the push plate 3, which is slidably connected to the guide rod 26.

[0040] A water-passing surface 28 is provided on the side wall of the push plate 3. The water-passing surface 28 is a plane. The two water-passing surfaces 28 are located on both sides of the push plate 3, so that the water-passing surface 28 is flush with the side wall of the water-passing plate 19.

[0041] A connecting hole 29 is provided in the middle of the water-passing plate 19. The two ends of the connecting hole 29 are connected to the receiving cavity 9 and the flow detection hole 11, respectively. A connecting blind hole 30 corresponding to the connecting hole 29 is provided on the side of the push plate 3 facing the water-passing plate 19. The connecting blind hole 30 passes through the support column 1. The connecting blind hole 30 is coaxially arranged with the support column 1.

[0042] The push plate 3 has a weight-reducing recess 31 on the side facing the water-passing plate 19. There are two weight-reducing recesses 31, which are located on both sides of the connecting blind hole 30.

[0043] There is an integrated reinforcing member 32 between the support column 1 and the push plate 3. The reinforcing member 32 is a reinforcing rib.

[0044] Water enters the receiving cavity 9 through the inlet 8, causing the water flow to impact the valve core 33, which moves upward. This separates the push plate 3 from the water-passing plate 19, and the sealing plate 2 passes through the fixing ring 20. The water flows through the support column 1 and the fixing ring 20 and is discharged. Simultaneously, the magnet 24 is misaligned with the reed switch 21. When no water flows into the flow detection hole 11, the push plate 3 contacts the water-passing plate 19, and the magnet 24 corresponds to the reed switch 21.

[0045] 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 flow valve structure for a water pump controller, comprising a valve body (7), an inlet (8), a receiving cavity (9), and a flow detection hole (11), wherein the inlet (8), the receiving cavity (9), and the flow detection hole (11) are all opened on the valve body (7), and the inlet (8) and the flow detection hole (11) are all connected to the receiving cavity (9), wherein a water-passing plate (19) and a fixing ring (20) are provided in the flow detection hole (11), wherein a connecting hole (29) is opened on the water-passing plate (19), wherein the two ends of the connecting hole (29) are respectively connected to the receiving cavity (9) and the flow detection hole (11), wherein a reed switch (21) is connected on the valve body (7), and a valve core (33) located between the fixing ring (20) and the water-passing plate (19) is slidably connected in the flow detection hole (11), wherein the valve core (33) comprises a support column (1), a push plate (3), a sealing plate (2), and a stop rod (23), characterized in that: The support column (1), push plate (3) and stop bar (23) are all integrally molded plastic. The water flow plate (19) is used to support the push plate (3). The support column (1) is connected to a magnet (24) for cooperating with the reed switch (21). The stop bar (23) is used to abut against the fixing ring (20) to prevent the valve core from coming out of the flow detection hole (11). The sealing plate (2) is connected to the support column (1) and located inside the fixing ring (20). The valve core (33) slides within the flow detection hole (11), and the magnet (24) and the reed switch (21) correspond to or are misaligned with each other.

2. The flow valve structure for a water pump controller according to claim 1, characterized in that: A guide rod (26) is connected to the inner wall of the flow detection hole (11). The length direction of the guide rod (26) is parallel to the axial direction of the flow detection hole (11). A guide groove (27) is provided on the side wall of the push plate (3) and is slidably connected to the guide rod (26).

3. The flow valve structure for a water pump controller according to claim 1, characterized in that: The push plate (3) has a water-passing surface (28) on its side wall.

4. The flow valve structure for a water pump controller according to claim 1, characterized in that: The push plate (3) has a connecting blind hole (30) on the side facing the water plate (19) that corresponds to the connecting hole (29), and the connecting blind hole (30) passes through the support column (1).

5. The flow valve structure for a water pump controller according to claim 1, characterized in that: The push plate (3) has a weight-reducing recess (31) on the side facing the water-passing plate (19).

6. The flow valve structure for a water pump controller according to claim 1, characterized in that: A reinforcing member (32) is connected between the support column (1) and the push plate (3).

7. The flow valve structure for a water pump controller according to claim 1, characterized in that: The support column (1) has an integrally connected connecting protrusion (22) on its side wall. The connecting protrusion (22) has a positioning hole (25) and the magnet (24) is fixed in the positioning hole (25).

8. The flow valve structure for a water pump controller according to claim 7, characterized in that: The inner diameter of the opening of the positioning hole (25) is smaller than the inner diameter of the bottom wall of the positioning hole (25). The magnet (24) is arranged in a frustum shape, and the side wall of the magnet (24) abuts against the inner wall of the positioning hole (25).

9. The flow valve structure for a water pump controller according to claim 1, characterized in that: A one-way valve (14) is provided on the inlet (8). The one-way valve (14) includes a connecting plate (15) and an extension rod (16). The extension rod (16) is fixed on the connecting plate (15) and is slidably connected to the inner wall of the inlet (8). The connecting plate (15) is located in the receiving cavity (9) and is used to block the end of the inlet (8) near the receiving cavity (9).

10. The flow valve structure for a water pump controller according to claim 9, characterized in that: The connecting plate (15) has a positioning ring groove (17) on the side facing the water inlet (8), and a sealing ring (18) is fixedly connected in the positioning ring groove (17) to abut against the end face of the water inlet (8) near the receiving cavity (9).

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