Control body water outlet structure and RO booster pump

Abstract

The application relates to a control body water outlet structure and an RO booster pump, which comprises a control body and a water outlet valve piece installed on the control body, the lower side of the control body is provided with a plurality of independent water hitting chambers; the top of the control body is provided with a layout groove, and an elastic buffer piece is arranged in the layout groove; the bottom of the layout groove is provided with a first drainage hole communicated with the water hitting chamber, and the elastic buffer piece is provided with a second drainage hole communicated with the first drainage hole; the water outlet valve piece comprises a mounting valve rod matched with the control body and a water outlet valve piece used for covering the second drainage hole, and the elastic buffer piece is provided with a layout through hole matched with the mounting valve rod. The application has the effect of reducing the impact sound of the elastic closure flap and the control body.

Description

Technical Field

[0001] This application relates to the field of water purifier booster pump technology, and in particular to a control body water outlet structure and an RO booster pump. Background Technology

[0002] The RO booster pump is one of the core components of a reverse osmosis water purification system, and the control body outlet structure is an important part of the RO booster pump.

[0003] Chinese utility model patent CN212615277U discloses a water outlet structure for a control body, comprising a control body and a water outlet valve plate mounted on the control body. The control body has multiple independent water-spraying chambers on its lower side, and each water-spraying chamber has an inlet and an outlet at its top. The water outlet valve plate has elastic sealing flaps that cover the outlets and correspond one-to-one with each outlet. Regarding the aforementioned technologies, during the operation of the RO booster pump, the elastic sealing valve overcomes its elasticity and tilts upwards under impact. Since high-pressure drainage is intermittent, the elastic sealing valve rebounds and directly strikes the upper side of the control body. Because the control body is made of hard plastic and the elastic sealing valve is made of rubber, the impact sound is quite loud. Utility Model Content

[0004] To reduce the impact noise between the elastic sealing valve and the control body, this application provides a control body water outlet structure and an RO booster pump.

[0005] In a first aspect, this application provides a water outlet control structure, which adopts the following technical solution: A water outlet structure for a control body includes a control body and a water outlet valve mounted on the control body. The control body has multiple independent water-spraying chambers on its lower side. The control body has an arrangement groove at its top and an elastic buffer is disposed within the arrangement groove. The bottom of the arrangement groove has a first drain hole communicating with the water-spraying chambers, and the elastic buffer has a second drain hole communicating with the first drain hole. The water outlet valve includes a mounting valve stem that cooperates with the control body and a water outlet valve plate for covering the second drain hole. The elastic buffer has an arrangement through hole that cooperates with the mounting valve stem.

[0006] By adopting the above technical solution, an elastic buffer is installed in the groove at the top of the control body, which can buffer the impact force of the rebound of the outlet valve plate and reduce the impact noise between the outlet valve plate and the control body; the first drain hole and the second drain hole are connected to the water discharge chamber, so that water can be discharged smoothly; the outlet valve plate covers the second drain hole to control the discharge of water and prevent backflow. The arrangement of through holes and the installation of valve stem facilitate the installation of the outlet valve.

[0007] Optionally, the top surface of the elastic buffer is an arc-shaped concave surface. When the water outlet valve is installed on the control body, the bottom surface of the water outlet valve plate is in contact with the bottom surface of the arc-shaped concave surface and has elastic deformation.

[0008] By adopting the above technical solution, the top surface of the elastic buffer is an arc-shaped concave surface. When the water outlet valve is installed on the top of the control body, the bottom surface of the water outlet valve plate can fit against the bottom surface of the arc-shaped concave surface and generate elastic deformation, so that the water outlet valve plate and the elastic buffer are more tightly fitted, enhancing the sealing effect and reducing the situation of water backflow into the water pumping chamber.

[0009] Optionally, the water outlet valve plate has a closing flap that is arranged corresponding to the water pumping chamber and is used to cover the second drain hole, and an arrangement gap is formed between adjacent closing flaps. The outer edge of the top surface of the elastic buffer member is provided with a positioning protrusion arranged at the arrangement gap.

[0010] By adopting the above technical solution, a positioning protrusion is provided on the outer edge of the top surface of the elastic buffer and arranged in the arrangement gap between adjacent closed petals. When installing the water outlet valve, the water outlet valve plate can be positioned, reducing the probability of misalignment during installation and ensuring stable operation of the water outlet structure.

[0011] Optionally, the closing petal is fan-shaped, and the thickness of the closing petal gradually decreases radially from the inside to the outside.

[0012] By adopting the above technical solution, the sealing petal is fan-shaped and its thickness gradually decreases from the inside to the outside along the radial direction, making the sealing petal easier to deform and better fit the arc-shaped concave surface of the elastic buffer. It is also less likely to break when subjected to the impact of high-pressure water and overcoming the elasticity, thus enhancing the structural stability of the outlet valve plate.

[0013] Optionally, the control body has a locking through hole for inserting the mounting valve stem, and the end of the mounting valve stem has a locking head that engages with the lower outer edge of the locking through hole.

[0014] By adopting the above technical solution, the locking through hole of the control body can be used to install the valve stem for insertion and mating. The locking head at the end of the valve stem fits with the lower outer edge of the locking through hole, which can realize the stable installation of the outlet valve and the control body and reduce the probability of the outlet valve falling off the control body.

[0015] Optionally, the control member has a polygonal limiting groove at the center of the bottom surface of the arrangement groove, and the bottom of the elastic buffer member has a polygonal limiting part that cooperates with the polygonal limiting groove.

[0016] By adopting the above technical solution, the polygonal limiting part at the bottom of the elastic buffer can cooperate with the limiting groove of the control component to limit the elastic buffer, restrict the rotation of the elastic buffer in the arrangement groove, and ensure the relative position stability of the elastic buffer and the control body.

[0017] Optionally, the cross-section of the arrangement through hole is polygonal, and the mounting valve stem is provided with an arrangement limiting part adapted to the arrangement through hole on the lower side of the water outlet valve plate.

[0018] By adopting the above technical solution, the cross-section of the through hole is polygonal, and the valve stem is installed on the lower side of the outlet valve plate with an arrangement limiting part that matches the arrangement through hole. This can limit the installation of the valve stem, ensuring that the installed valve will not rotate during operation and guaranteeing the normal operation of the outlet structure of the control body.

[0019] Secondly, this application provides an RO booster pump, which adopts the following technical solution: An RO booster pump includes the control body outlet structure described above.

[0020] By adopting the above technical solution, a control body water outlet structure is set in the RO booster pump. When the RO booster pump is running, the water in the pumping chamber is forced out by high pressure. When the water in the pumping chamber is discharged through the first drain hole and the second drain hole, it impacts the water outlet valve plate, causing it to overcome its elasticity and tilt upwards, allowing the water to be smoothly discharged from the pumping chamber. Because an elastic buffer is set in the groove at the top of the control body, when the water outlet valve plate rebounds after overcoming its elasticity, the water outlet valve plate strikes the elastic buffer, which can buffer the impact force of the water outlet valve plate rebound and reduce the impact noise between the water outlet valve plate and the control body.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. A water outlet structure for a control body, wherein an elastic buffer is provided in a groove at the top of the control body, which can buffer the impact force of the rebound of the water outlet valve plate and reduce the impact noise between the water outlet valve plate and the control body. 2. The arc-shaped concave surface of the top surface of the elastic buffer fits into the bottom surface of the outlet valve plate and has elastic deformation, so that the outlet valve plate and the elastic buffer fit more tightly, reducing the situation of water backflow into the water pumping chamber. 3. The polygonal limiting part of the elastic buffer and the polygonal limiting groove of the control part can restrict the rotation of the elastic buffer. The arrangement of the limiting part and the polygonal arrangement of the through hole section ensure that the installed valve will not rotate during operation. 4. An RO booster pump, wherein a control body outlet structure is provided in the RO booster pump, and an elastic buffer is provided on the top of the control body so that the outlet valve plate strikes the elastic buffer when it rebounds, thereby reducing the impact noise between the outlet valve plate and the control body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a water outlet control structure in Example 1.

[0023] Figure 2This is a schematic cross-sectional view of the control body, water outlet valve plate, and elastic buffer in Example 1.

[0024] Figure 3 This is a schematic diagram of the bottom structure of the elastic buffer in Example 1.

[0025] Figure 4 This is a schematic diagram of the bottom structure of the water outlet valve in Example 1.

[0026] Figure 5 This is a schematic diagram of the structure of an RO booster pump in Example 2.

[0027] Figure 6 This is a schematic diagram of the cooperative structure of the drive component, water spraying component and control body in Embodiment 2.

[0028] Explanation of reference numerals in the attached drawings: 1. Control body; 11. Water-pumping chamber; 12. Water inlet; 13. First drain hole; 14. Water inlet valve; 15. Arrangement groove; 16. Elastic buffer; 161. Polygonal limiting part; 162. Second drain hole; 163. Arrangement through hole; 164. Positioning protrusion; 17. Polygonal limiting groove; 18. Locking through hole; 2. Water outlet valve; 21. Mounting valve stem; 211. Locking head; 2111. Conical guide part; 212. Arrangement limiting part; 22. Water outlet valve plate; 221. Closing flap; 222. Arrangement gap; 3. Upper housing; 31. Water inlet; 32. Water outlet; 4. Lower housing; 5. Working mechanism; 51. Drive assembly; 52. Water-pumping assembly. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0030] Example 1 This application discloses a water outlet control structure. (Refer to...) Figure 1 and Figure 2 The control body's water outlet structure includes a control body 1 and a water outlet valve 2 mounted on the control body 1. The lower side of the control body 1 has multiple independent water-spraying chambers 11, each with an inlet hole 12 and a first drain hole 13 communicating with it at its top. An inlet valve 14 for controlling the water flow direction at the inlet hole 12 is mounted on the top of the water-spraying chambers, and the water outlet valve 2 is mounted on the top of the control body and controls the water flow direction at the first drain hole 13. In this embodiment, the control body 1 has five water-spraying chambers 11 on its lower side, evenly distributed around the central axis of the control body 1. The control body 1 is made of rigid plastic, while the inlet valve 14 and the water outlet valve 2 are integrally molded from rubber material.

[0031] Reference Figure 1The control body 1 has a groove 15 on its top, and the groove 15 is located on the central axis of the control body 1. The first drainage hole 13 is located at the bottom of the groove 15. An elastic buffer 16 is also provided in the groove 15. In this embodiment, the elastic buffer 16 is made of elastic materials such as rubber and silicone. The groove 15 is a circular groove, and the size of the elastic buffer 16 is adapted to the size of the groove 15. Its thickness is not less than 2 mm.

[0032] Reference Figure 2 and Figure 3 The control body 1 has a polygonal limiting groove 17 at the center of the bottom surface of the arrangement groove 15, and the bottom of the elastic buffer member 16 has a polygonal limiting part 161 that mates with the polygonal limiting groove 17. The polygonal limiting part 161 mates with the polygonal limiting groove 17 to restrict the rotation of the elastic buffer member 16 within the arrangement groove 15. In this embodiment, the polygonal limiting part 161 is integrally provided on the elastic buffer member 16.

[0033] Reference Figure 2 and Figure 3 The elastic buffer 16 has a second drain hole 162 that communicates with the first drain hole 13. In this embodiment, each water-spraying chamber 11 has five first drain holes 13, arranged in two parallel columns. The second drain holes 162 are arranged in a one-to-one correspondence with the first drain holes 13, and both the first drain holes 13 and the second drain holes 162 are circular through holes.

[0034] Reference Figure 2 and Figure 4 The water outlet valve component 2 includes a mounting valve stem 21 that cooperates with the control body 1 and a water outlet valve plate 22 for covering the second drain hole 162. The water outlet valve plate 22 has a closing flap 221 corresponding to the water pumping chamber 11 and used to cover the second drain hole 162. The closing flap 221 is fan-shaped, and its thickness gradually decreases radially from the inside to the outside. In this embodiment, there are five closing flaps 221, with an arrangement gap 222 formed between adjacent closing flaps 221. The mounting valve stem 21 and the water outlet valve plate 22 are integrally formed.

[0035] Reference Figure 2 and Figure 4 The control body 1 has a locking through hole 18 for inserting and engaging the valve stem 21. The end of the valve stem 21 has a locking head 211 that engages with the lower outer edge of the locking through hole 18. The bottom of the locking head 211 has a tapered guide portion 2111, the radial dimension of which decreases from top to bottom. The elastic buffer member 16 has an arrangement through hole 163 that engages with the valve stem 21. The arrangement through hole 163 has a polygonal cross-section, and the valve stem 21 has an arrangement limiting portion 212 adapted to the arrangement through hole 163 on the lower side of the outlet valve plate 22.

[0036] Reference Figure 1 and Figure 2 The top surface of the elastic buffer 16 is an arc-shaped concave surface. When the water outlet valve 2 is installed on the top of the control body 1, the bottom surface of the water outlet valve 22 is in contact with the bottom surface of the arc-shaped concave surface and generates elastic deformation. The water outlet valve 22 is in close contact with the elastic buffer 16, which can reduce the situation where water flushed out from the water outlet chamber 11 under high pressure flows back into the water outlet chamber 11.

[0037] Reference Figure 1 The elastic buffer 16 also has a positioning protrusion 164 arranged at the arrangement gap 222 at the outer edge of the top surface. When the water outlet valve 2 is installed on the top of the control body 1, the position of each closing flap 221 can be determined according to the positioning protrusion 164, so that misalignment will not occur during the installation process.

[0038] Combination Figures 1 to 4 The implementation principle of Example 1 is as follows: When the RO booster pump is working, the working mechanism 5 inside the RO booster pump forces water out of the pumping chamber under high pressure, and then through the first drain hole 13 of the control body 1 and the second drain hole 162 of the elastic buffer 16. The high-pressure water impacts the sealing flap 221 covering the second drain hole 162, causing it to overcome the elasticity and lift up. Since the high-pressure drainage is intermittent, when the sealing flap 221 rebounds, it strikes the elastic buffer 16, buffering the impact force of the rebound of the outlet valve plate 22 and reducing the noise generated by the outlet valve plate 22 hitting the control body 1.

[0039] Example 2 This application also discloses an RO booster pump. (See attached embodiments.) Figures 1 to 6 The RO booster pump includes an upper housing 3, a lower housing 4, a working mechanism 5 installed inside the lower housing 4, and the aforementioned control body outlet structure installed in the lower housing 4 and cooperating with the working mechanism 5. The upper housing 3 has an inlet 31 and an outlet 32, and is locked to the lower housing 4 by bolts.

[0040] Reference Figures 1 to 6 The working mechanism 5 includes a water-spraying component 52 corresponding to the water-spraying chamber 11 and a drive component 51 that drives the water-spraying component 52 to move. When the RO booster pump starts, the drive component 51 drives the water-spraying component 52 to reciprocate up and down, thereby changing the volume inside the water-spraying chamber 11. When the volume of the water-spraying chamber 11 increases, water in the RO booster pump inlet chamber is drawn into the water-spraying chamber 11 through the inlet hole 12. When the volume of the water-spraying chamber 11 decreases, due to the setting of the inlet valve 14, the drawn water will not flow back through the inlet valve 14, but can only be discharged from the water-spraying chamber 11 under high pressure through the outlet valve 2 and then discharged through the outlet 32.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water outlet structure for a control body, comprising a control body (1) and a water outlet valve (2) mounted on the control body (1), wherein the control body (1) has a plurality of independent water-spraying chambers (11) on its lower side; characterized in that, The control body (1) has an arrangement groove (15) on the top and an elastic buffer (16) is provided in the arrangement groove (15); the bottom of the arrangement groove (15) has a first drain hole (13) communicating with the water pumping chamber (11), and the elastic buffer (16) has a second drain hole (162) communicating with the first drain hole (13); the water outlet valve (2) includes an installation valve stem (21) cooperating with the control body (1) and a water outlet valve plate (22) for covering the second drain hole (162), and the elastic buffer (16) has an arrangement through hole (163) cooperating with the installation valve stem (21).

2. The water outlet structure of the control body according to claim 1, characterized in that, The top surface of the elastic buffer (16) is an arc-shaped concave surface. When the water outlet valve (2) is installed on the control body (1), the bottom surface of the water outlet valve plate (22) is attached to the bottom surface of the arc-shaped concave surface and has elastic deformation.

3. The water outlet control structure according to claim 2, characterized in that, The water outlet valve plate (22) has a closing flap (221) arranged corresponding to the water pumping chamber (11) and used to cover the second drain hole (162). An arrangement gap (222) is formed between adjacent closing flaps (221). The elastic buffer member (16) has a positioning protrusion (164) arranged at the arrangement gap (222) at the outer edge of the top surface.

4. The water outlet control structure according to claim 3, characterized in that, The closed petal (221) is fan-shaped, and the thickness of the closed petal (221) gradually decreases radially from the inside to the outside.

5. The water outlet structure of the control body according to claim 1, characterized in that, The control body (1) has a locking through hole (18) for inserting the mounting valve stem (21) into the valve, and the end of the mounting valve stem (21) has a locking head (211) that engages with the lower outer edge of the locking through hole (18).

6. The water outlet control structure according to claim 1, characterized in that, The control member has a polygonal limiting groove (17) at the center of the bottom surface of the arrangement groove (15), and the bottom of the elastic buffer member (16) has a polygonal limiting part (161) that cooperates with the polygonal limiting groove (17).

7. The water outlet structure of the control body according to claim 1, characterized in that, The cross-section of the arrangement through hole (163) is polygonal, and the mounting valve stem (21) is provided with an arrangement limiting part (212) adapted to the arrangement through hole (163) on the lower side of the water outlet valve plate (22).

8. An RO booster pump, characterized in that, The water outlet structure of the control body as described in any one of claims 1-7.

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