A booster pump

By designing multiple chambers and reciprocating motion components in the booster pump, low-frequency operation and high-efficiency boosting are achieved, solving the problems of high operating frequency and insufficient water flow pulse in existing booster pumps. It is suitable for low-flow, high-pressure cleaning devices.

CN224532948UActive Publication Date: 2026-07-21DONGGUAN BOWEI PUMP IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN BOWEI PUMP IND CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing booster pumps operate frequently in low-flow dental irrigators, but their boosting effect needs improvement, and the water flow pulse is insufficient.

Method used

Design a booster pump, including a drive component and a cylinder. The cylinder has multiple chambers connected sequentially from the inlet to the outlet and a reciprocating motion component. The drive component drives the reciprocating motion component to reciprocate within the cylinder, causing the inlet and multiple chambers to generate negative pressure sequentially. Water is drawn into the multiple chambers sequentially through the inlet for periodic pressurization and then discharged through the outlet.

Benefits of technology

It achieves low-frequency operation, better pressure boosting effect, and lower water flow rate, making it suitable for low-flow, high-pressure cleaning. The water flow generates a pulsating sensation, which improves the cleaning effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224532948U_ABST
    Figure CN224532948U_ABST
Patent Text Reader

Abstract

The utility model relates to a booster pump relates to the technical field of booster pump, it contains drive part and installs on drive part cylinder, cylinder has water inlet nozzle and water outlet nozzle, its characterized in that, the inside of cylinder is equipped with multiple cavities from water inlet nozzle to water outlet nozzle in turn and reciprocating motion part for the pressure increase of cavity, drive part work when driving reciprocating motion part in cylinder and make reciprocating motion, so that water inlet nozzle and multiple cavities produce negative pressure in turn, water is extracted into multiple cavities in turn through water inlet nozzle and carries out periodic pressure increase, and then is discharged through water outlet nozzle. Adopt above technical scheme makes this booster pump low-frequency operation, and the pressure increase effect is better, and the water flow is lower, is extremely suitable for low flow, high pressure cleaning device, and water through periodic pressure increase also can produce pulse feeling, is favorable to device cleaning effect better.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of booster pump technology, and specifically to a booster pump. Background Technology

[0002] A booster pump is a device that converts mechanical energy into fluid pressure energy. It is primarily used to increase the pressure of fluids (liquids or gases) to meet the needs of transportation or specific operating conditions. Current booster pumps often have multiple independent working cylinders or chambers. During operation, a negative pressure is generated inside, simultaneously drawing water into these chambers. Reciprocating moving parts then pressurize the water, which is finally discharged. This type of booster pump is commonly used in low-flow dental floss products. However, due to its high operating frequency, the boosting effect needs improvement. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a booster pump that features low-frequency operation, better boosting effect, and lower water flow rate, making it extremely suitable for low-flow, high-pressure cleaning devices. In addition, the water will generate a pulse sensation after periodic pressurization, which is beneficial to the better cleaning effect of the device.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A booster pump includes a drive component and a cylinder mounted on the drive component. The cylinder has an inlet and an outlet. The cylinder is characterized in that it has multiple chambers connected sequentially from the inlet to the outlet, and a reciprocating motion component for pressurizing the chambers. When the drive component is working, it drives the reciprocating motion component to reciprocate within the cylinder, thereby generating negative pressure sequentially in the inlet and the multiple chambers. Water is sequentially drawn into the multiple chambers through the inlet for periodic pressurization and then discharged through the outlet.

[0006] Preferably, the cylinder body includes a bottom shell, a middle frame, and a top shell that are detachably connected from bottom to top. The reciprocating motion component is installed in the middle frame. The output end of the drive component passes through the bottom shell and is connected to the reciprocating motion component via an eccentric component. The middle frame and the top shell are equipped with valve plates and mounting plates that are distributed vertically. The valve plates have multiple water outlet holes, and each water outlet hole is equipped with an inlet valve that is connected to the reciprocating motion component. The mounting plate has multiple second water inlet holes that are respectively connected to the multiple water outlet holes. A sealing gasket is installed on the mounting plate that is connected to the water outlet holes. A separator for separating the multiple water outlet holes is fixed inside the top shell. The separator divides the interior of the top shell into multiple cavities. The separator is connected to the water inlet and water outlet respectively. The water inlet and water outlet are located on the top shell. Each cavity is composed of a separator, a second water inlet hole, a first water inlet hole, a water outlet hole, and a sealing gasket.

[0007] Preferably, the second water inlet is located on the outside of the sealing gasket membrane, and the first water inlet is located on the inside of the water outlet.

[0008] Preferably, the separator includes at least two integrally formed tube flaps, one end of each tube flap is connected to the inlet and outlet of the water inlet respectively, and the other end of each tube flap is connected to the inside of the sealing gasket membrane. The first inlet hole, the outlet hole and the second inlet hole are each provided in two opposite positions.

[0009] Preferably, the separator comprises two integrally formed pipe flaps and at least one separator pipe, and the first water inlet, the water outlet and the second water inlet are each provided with at least three oppositely arranged.

[0010] Preferably, the tube flap is arc-shaped and the separator tube is cylindrical.

[0011] Preferably, the driving component is a motor, and the eccentric component includes an eccentric block and a swing frame. The eccentric block is fixed on the output end of the motor and located in the bottom shell, and the swing frame is fixed on the eccentric block and is connected to the reciprocating motion component for transmission.

[0012] Preferably, the reciprocating motion component includes multiple integrally formed leather cups, each leather cup communicating with the adjacent first water inlet and outlet, and each leather cup having a connecting rod fixed to its bottom end, with the swing frame being drivenly connected to one of the connecting rods.

[0013] Preferably, the motor, bottom shell, middle frame, valve plate, and top shell are connected by at least two bolts.

[0014] Preferably, the outer edge of the mounting plate has at least two limiting holes for inserting two bolts.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0016] When the drive unit is working, it drives the reciprocating motion component to reciprocate within the cylinder, causing the inlet nozzle and multiple chambers to generate negative pressure in sequence. Water is drawn into the multiple chambers through the inlet nozzle for periodic pressurization and then discharged through the outlet nozzle. This design not only allows the booster pump to operate at low frequency and achieve better pressurization, but also results in a lower water flow rate. Furthermore, the periodic pressurization of the water creates a pulsating sensation, making it highly suitable for low-flow, high-pressure cleaning devices, such as dental flossers. The pulsating sensation of the water contributes to a better cleaning effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 yes Figure 1 Exploded view;

[0020] Figure 3 yes Figure 1 Another exploded view.

[0021] Explanation of reference numerals in the attached drawings: 1. Motor; 2. Bottom shell; 3. Eccentric block; 4. Swing frame; 5. Middle frame; 6. Leather cup; 7. First water inlet; 8. Water outlet; 9. Valve plate; 10. Mounting plate; 11. Second water inlet; 12. Sealing gasket; 13. Top shell; 14. Water inlet nozzle; 15. Water outlet nozzle; 16. Divider; 161. Pipe flap; 162. Divider tube; 17. Liquid inlet valve; 18. Limiting hole; 19. Bolt. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0024] This embodiment relates to a booster pump, such as Figure 1-3 As shown, the device includes a drive unit and a cylinder mounted on the drive unit. The cylinder has an inlet 14 and an outlet 15. Inside the cylinder, there are multiple chambers connected sequentially from the inlet 14 to the outlet 15, and a reciprocating motion component for pressurizing the chambers. When the drive unit is working, it drives the reciprocating motion component to reciprocate within the cylinder, causing the inlet 14 and the multiple chambers to generate negative pressure sequentially. Water is drawn into the multiple chambers sequentially through the inlet 14 for periodic pressurization, and then discharged through the outlet 15. This design not only allows the booster pump to operate at low frequency and achieve better pressurization, but also results in a lower water flow rate, making it extremely suitable for low-flow, high-pressure cleaning devices, such as dental flossers. Furthermore, the periodic pressurization of the water also generates a pulsating sensation, which is beneficial for a better cleaning effect.

[0025] Specifically, such as Figure 1-3As shown, the cylinder body includes a bottom shell 2, a middle frame 5, and a top shell 13, which are detachably connected from bottom to top. A reciprocating motion component is installed in the middle frame 5. The output end of the drive component passes through the bottom shell 2 and is connected to the reciprocating motion component via an eccentric component. A valve plate 9 and a mounting plate 10, distributed vertically, are installed on the middle frame 5 and the top shell 13. The valve plate 9 has multiple water outlet holes 8, each containing an inlet valve 17 that is connected to the reciprocating motion component. The mounting plate 10 has multiple second inlet holes 11 on its surface, each communicating with one of the multiple water outlet holes 8. A sealing gasket 12 communicating with the water outlet 8 is installed on the top shell 10. A separator 16 for separating multiple water outlets 8 is fixed inside the top shell 13. The separator 16 divides the interior of the top shell 13 into multiple cavities. The separator 16 communicates with the water inlet 14 and the water outlet 15 respectively. The water inlet 14 and the water outlet 15 are located on the top shell 13. Each cavity is composed of the separator 16, the second water inlet 11, the first water inlet 7, the water outlet 8, and the sealing gasket 12. When the drive component works, it drives the reciprocating motion component to reciprocate within the cylinder through an eccentric component, which allows the water inlet to reciprocate. Negative pressure is generated sequentially in the water inlet 14 and multiple chambers. Water enters the first cavity of the partition 16 connected to the water inlet 14, and then passes through the second water inlet hole 11 connected to the water inlet 14. Since the output end of the drive component passes through the bottom shell 2 and is connected to the reciprocating motion component through the eccentric component, the drive component drives the reciprocating motion component to perform eccentric motion, opening the inlet valve 17 in the corresponding first water inlet hole 7, while blocking multiple water outlet holes 8. As the reciprocating motion component moves upward, the inlet valve 17 is closed. At this time, the inlet... The outlet hole 8 near valve 17 is opened, and the water after the first pressurization will pass through the sealing gasket 12 and enter the second cavity. This is one cycle. In the same way, the water can be pressurized repeatedly in the remaining chambers in sequence, and finally discharged through the outlet 15. The water is periodically pressurized in the sequentially connected chambers, which makes the booster pump operate at low frequency, has a better pressurization effect, and a lower water flow rate. It is extremely suitable for low flow and high pressure cleaning devices. At the same time, the water will also generate a pulse feeling after periodic pressurization, which is conducive to better cleaning effect of the device.

[0026] like Figure 2 As shown in Figure 3, the second water inlet 11 is located outside the sealing gasket 12, and the first water inlet 7 is located inside the water outlet 8. This design is intended to spray the water, which has been pressurized multiple times, out from the middle of the cylinder, which is beneficial to the stable operation of the booster pump.

[0027] like Figure 2As shown in Figure 3, the separator 16 includes at least two integrally formed pipe flaps 161. One end of each pipe flap 161 is connected to the inlet nozzle 14 and the outlet nozzle 15, respectively, and the other end is connected to the inside of the sealing gasket 12. The first inlet hole 7, the outlet hole 8, and the second inlet hole 11 are all arranged in pairs. This design allows the water to be pressurized in the booster pump for two cycles and finally discharged through the outlet nozzle 15. The pressurization process will not be described in detail.

[0028] Preferably, the separator 16 includes two integrally formed pipe flaps 161 and a separator pipe 162. The first water inlet hole 7, the water outlet hole 8 and the second water inlet hole 11 are each arranged in at least three opposite directions. This design allows the water to be pressurized in the booster pump for three cycles and finally discharged through the water outlet 15. The pressurization process will not be described in detail.

[0029] Furthermore, the tube flap 161 is designed in an arc shape, and the partition tube 162 is designed in a circular tube shape. The arc and the circle have the characteristics of dispersing external forces to various parts, which can extend the service life of the partition 16.

[0030] like Figure 2 As shown in Figure 3, the driving component is a motor 1, and the eccentric component includes an eccentric block 3 and a swing frame 4. The eccentric block 3 is fixed on the output end of the motor 1 and located in the bottom shell 2. The swing frame 4 is fixed on the eccentric block 3 and is connected to the reciprocating motion component for transmission. When the motor 1 is working, it will drive the eccentric block 3 to make the swing frame 4 and the reciprocating motion component perform eccentric motion, causing multiple liquid inlet valves 17 to be opened or closed, and the reciprocating motion component to perform eccentric motion, causing the water outlet 8 to be opened.

[0031] like Figure 2 As shown in Figure 3, specifically, the reciprocating motion component includes multiple integrally formed leather cups 6. The multiple integrally formed leather cups 6 are tightly fitted to the inner wall of the cylinder. The leather cups 6 are connected to the adjacent first water inlet 7 and water outlet 8. A connecting rod is fixed to the bottom of each leather cup 6. The swing frame 4 is connected to one of the connecting rods for transmission.

[0032] like Figure 2 As shown in Figure 3, the motor 1, bottom shell 2, middle frame 5, valve plate 9 and top shell 13 are connected by at least two bolts 19. This connection method facilitates the user's disassembly and installation of the cylinder.

[0033] like Figure 2 As shown in Figure 3, the outer edge of the mounting plate 10 has at least two limiting holes 18 for inserting two bolts 19, in which case the bolts 19 limit the mounting plate 10.

[0034] The working principle of this utility model is roughly as follows: After the motor 1 is powered on, it drives the eccentric block 3 to make the swing frame 4 and the reciprocating motion component perform eccentric motion. At the same time, the reciprocating motion component performs reciprocating motion in the cylinder, which can generate negative pressure in the inlet 14 and multiple chambers in sequence. Water will enter the first cavity of the partition 16 connected to the inlet 14 through the inlet 14, and then pass through the second inlet hole 11 connected to the inlet 14. Under the eccentric motion, the reciprocating motion component can open the liquid inlet valve 17 in the corresponding first inlet hole 7, and at the same time block multiple outlet holes 8. At this time, the water flows to the bottom of the first chamber. Moving upwards closes the inlet valve 17, opening the outlet 8 near the inlet valve 17. After the first pressurization, the water passes through the sealing gasket 12 and enters the second cavity. This completes one cycle. In the same manner, the water can be pressurized repeatedly in the remaining chambers. Finally, the water is discharged through the outlet 15 after multiple pressurizations. The periodic pressurization of the water in the interconnected chambers results in low-frequency operation of the booster pump, better pressurization effect, and lower water flow rate. This is extremely suitable for devices that require low flow and high-pressure cleaning. At the same time, the periodic pressurization of the water also generates a pulsating sensation, which is beneficial for better cleaning effect.

[0035] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A booster pump, comprising a drive component and a cylinder mounted on the drive component, the cylinder having an inlet (14) and an outlet (15), characterized in that, The cylinder body is provided with multiple chambers connected in sequence from the inlet (14) to the outlet (15) and a reciprocating motion component for pressurizing the chambers. When the drive component works, it drives the reciprocating motion component to reciprocate in the cylinder body, so that the inlet (14) and the multiple chambers generate negative pressure in sequence. Water is drawn into the multiple chambers in sequence through the inlet (14) for periodic pressurization, and then discharged through the outlet (15).

2. A booster pump according to claim 1, characterized in that: The cylinder body includes a bottom shell (2), a middle frame (5), and a top shell (13) that are detachably connected from bottom to top. The reciprocating motion component is installed in the middle frame (5). The output end of the drive component passes through the bottom shell (2) and is connected to the reciprocating motion component via an eccentric component. The middle frame (5) and the top shell (13) are equipped with valve plates (9) and mounting plates (10) that are distributed vertically. The valve plates (9) have multiple water outlet holes (8). Each water outlet hole (8) is equipped with an inlet valve (17) that is connected to the reciprocating motion component. The mounting plate (10) has multiple holes on its surface that are connected to the multiple water outlet holes (8). The second water inlet (11) is installed on the mounting plate (10) and a sealing gasket (12) communicating with the water outlet (8). The top shell (13) is fixed with a separator (16) for separating multiple water outlets (8). The separator (16) divides the interior of the top shell (13) into multiple cavities. The separator (16) is communicating with the water inlet (14) and the water outlet (15) respectively. The water inlet (14) and the water outlet (15) are located on the top shell (13). Each cavity is composed of the separator (16), the second water inlet (11), the first water inlet (7), the water outlet (8), and the sealing gasket (12).

3. A booster pump according to claim 2, characterized in that: The second water inlet (11) is located outside the sealing gasket membrane (12), and the first water inlet (7) is located inside the water outlet (8).

4. A booster pump according to claim 2, characterized in that: The separator (16) includes at least two integrally formed pipe flaps (161). One end of each pipe flap (161) is connected to the inlet nozzle (14) and the outlet nozzle (15), respectively, and the other end is connected to the inside of the sealing gasket membrane (12). The first inlet hole (7), the outlet hole (8) and the second inlet hole (11) are each provided with two opposite holes.

5. A booster pump according to claim 4, characterized in that: The separator (16) includes two integrally formed pipe flaps (161) and at least one separator pipe (162), and the first water inlet (7), the water outlet (8) and the second water inlet (11) are each provided with at least three opposite each other.

6. A booster pump according to claim 5, characterized in that: The tube flap (161) is arc-shaped, and the separator tube (162) is cylindrical.

7. A booster pump according to claim 2, characterized in that: The driving component is a motor (1), and the eccentric component includes an eccentric block (3) and a swing frame (4). The eccentric block (3) is fixed on the output end of the motor (1) and located in the bottom shell (2). The swing frame (4) is fixed on the eccentric block (3) and is connected to the reciprocating motion component for transmission.

8. A booster pump according to claim 7, characterized in that: The reciprocating motion component includes multiple integrally formed leather cups (6), which are connected to the adjacent first water inlet (7) and water outlet (8), and each leather cup (6) has a connecting rod fixed at its bottom end. The swing frame (4) is connected to one of the connecting rods in a transmission connection.

9. A booster pump according to claim 7, characterized in that: The motor (1), bottom shell (2), middle frame (5), valve plate (9) and top shell (13) are connected by at least two bolts (19).

10. A booster pump according to claim 9, characterized in that: The mounting plate (10) has at least two limiting holes (18) on its outer edge for inserting two bolts (19).