Pump head of diaphragm booster pump, diaphragm booster pump and water treatment device

Abstract

The application provides a pump head of a diaphragm booster pump, the diaphragm booster pump and a water treatment device. The pump head comprises a driving shaft, an eccentric assembly, a balance wheel assembly, a booster cavity and a diaphragm. The rotation of the eccentric assembly drives the balance wheel assembly to swing along the radial direction of the driving shaft. The swing of the balance wheel assembly drives the diaphragm to deform along the radial direction of the driving shaft, so that the booster cavity is expanded or compressed in the radial direction. The eccentric assembly has a phase difference of 180 degrees during rotation, and the eccentric forces generated by the eccentric assembly are offset and the moments are balanced. The radial deformation of the diaphragm of two pairs of rectangular booster components arranged in pairs simplifies the manufacturing process while improving the flow rate. The transmission components meet the static balance and dynamic balance during operation, thereby further reducing the vibration.

Description

Technical Field

[0001] This application relates to the field of water treatment technology, specifically to a diaphragm booster pump head, a diaphragm booster pump, and a water treatment device. Background Technology

[0002] The working principle of a diaphragm booster pump is to achieve pressurization by changing the volume of the diaphragm through periodic movement, which in turn causes the rubber valve to periodically close and open the inlet and outlet ports on the valve seat.

[0003] Traditional diaphragm booster pumps, such as Figure 1 and Figure 2 As shown, key components include a motor, an eccentric wheel, three balance wheels, a diaphragm divided into three piston actuation zones, three pistons, a piston chamber containing three sets of inlets and one set of outlets, three inlet check valves, one outlet check valve, a pump head cover with inlet and outlet holes, and mutually separated inlet and outlet channels. The inlet channel of the pump head cover forms a raw water chamber with the piston chamber, the outlet channel of the pump head cover forms a high-pressure water chamber with the piston chamber, and the piston chamber and diaphragm form three independent pressurization chambers.

[0004] When the motor rotates, it drives the eccentric wheel to rotate. Since the balance wheel is restricted from rotating, the three balance wheels can only generate axial reciprocating motion sequentially. The three piston-acting areas of the diaphragm are synchronously expanded and compressed by the axial reciprocating motion of the balance wheels. When the piston-acting area of ​​the diaphragm moves in the expansion direction, the inlet check valve opens, and source water is drawn into the pressurized water chamber through the inlet. When the piston-acting area of ​​the diaphragm moves in the compression direction, the drain check valve opens, and the pressurized water is forced out, entering the high-pressure water chamber through the drain port, and then discharged from the pump through the drain hole on the pump head cover, providing the required high-pressure water.

[0005] The disadvantages of the aforementioned diaphragm booster pump are as follows: During operation, the three wheel oscillates alternately push against the diaphragm, continuously applying force in the same direction. When the motor shaft speed reaches 700-1200 rpm, the vibration generated by the alternating action of the three wheel oscillations is extremely large, resulting in significant noise. Furthermore, the flow rate of this diaphragm booster pump is relatively low. To increase the flow rate, it is necessary to increase the motor speed or increase the pump body size. However, increasing the motor speed will exacerbate the vibration and noise problems, while increasing the size will make it difficult to integrate the booster pump with existing equipment.

[0006] To address the vibration problem of the diaphragm in the aforementioned booster pump caused by axial force, a booster pump structure has been developed that uses multiple eccentric wheels to simultaneously apply opposite radial forces to a set of fan-shaped booster chambers. This reduces vibration and noise and increases flow rate by canceling out the radial forces. However, the fan-shaped booster chamber structure presents challenges in manufacturing, including complex mold-making processes and high manufacturing difficulty, and vibration cannot be completely eliminated. Summary of the Invention

[0007] To reduce the manufacturing difficulty of booster pumps and further eliminate vibration, this application provides a pump head for a diaphragm booster pump, a diaphragm booster pump, and a water processor.

[0008] According to a first aspect of this application, a pump head for a diaphragm booster pump is provided, the pump head comprising:

[0009] Transmission components, including,

[0010] Drive shaft;

[0011] An eccentric component is connected to the drive shaft and rotates under the drive of the drive shaft;

[0012] The balance wheel assembly is connected to the eccentric assembly, and the rotation of the eccentric assembly causes the balance wheel assembly to oscillate radially along the drive shaft;

[0013] Four rectangular booster components, connected to the transmission component, are arranged opposite each other along the axis of the drive shaft. Each booster component includes...

[0014] The piston chamber has at least one pressurization chamber on its inner wall;

[0015] A diaphragm, which closes with the piston chamber to form the at least one pressurization chamber;

[0016] The oscillation of the balance wheel assembly drives the diaphragm to deform radially along the drive shaft, causing the at least one pressurizing chamber to expand or compress in the radial direction.

[0017] According to some embodiments of this application, the eccentric components are 180° out of phase during rotation, and the resulting eccentric forces cancel each other out and the torques are balanced.

[0018] According to some embodiments of this application, the eccentric assembly includes a first eccentric wheel, a second eccentric wheel, and a third eccentric wheel arranged sequentially along the drive shaft; the third eccentric wheel and the first eccentric wheel are eccentrically aligned; the second eccentric wheel and the first eccentric wheel are eccentrically opposed.

[0019] According to some embodiments of this application, during the oscillation of the balance wheel assembly, the resultant force of the radial eccentric force along the drive shaft is zero and the resultant torque is balanced.

[0020] According to some embodiments of this application, the balance wheel assembly includes:

[0021] The first balance wheel is connected to the first eccentric wheel;

[0022] The second balance wheel is connected to the second eccentric wheel;

[0023] The third balance wheel is connected to the third eccentric wheel;

[0024] The third balance wheel swings in the same direction as the first balance wheel;

[0025] The second balance wheel swings in the opposite direction to the first balance wheel.

[0026] According to some embodiments of this application, the at least one pressurizing chamber includes:

[0027] The first pressurization chamber is driven by the first swing wheel to deform the diaphragm, thereby performing radial expansion or compression.

[0028] The second pressurization chamber is driven by the second swing wheel to deform the diaphragm, thereby performing radial expansion or compression.

[0029] The third pressurization chamber is driven by the third balance wheel to deform the diaphragm, thereby performing radial expansion or compression.

[0030] According to some embodiments of this application, the third pressurizing chamber and the first pressurizing chamber expand or compress synchronously; the second pressurizing chamber compresses or expands in the opposite direction to the first pressurizing chamber.

[0031] According to some embodiments of this application, when the thinner portions of the first eccentric wheel and the third eccentric wheel rotate to the corresponding first balance wheel and the third balance wheel, the deformation zone of the diaphragm corresponding to the first balance wheel and the third balance wheel is in a near-axial position, and the volume of the first pressurizing chamber and the third pressurizing chamber is the largest; the eccentric position of the second eccentric wheel is opposite to that of the first eccentric wheel and the third eccentric wheel, and at the same time, when the thinner portion of the second eccentric wheel rotates to the position of the second balance wheel, the deformation zone of the corresponding diaphragm is in a near-axial position, and the volume of the second pressurizing chamber is the largest.

[0032] According to some embodiments of this application, when the thicker parts of the first eccentric wheel and the third eccentric wheel rotate to the corresponding first balance wheel and the third balance wheel, the deformation area of ​​the diaphragm corresponding to the first balance wheel and the third balance wheel is at the far axis position, and the volume of the first pressure chamber and the third pressure chamber is minimized; at the same time, the thicker part of the second eccentric wheel rotates to the position of the second balance wheel, and the deformation area of ​​the corresponding diaphragm is at the far axis position, and the volume of the second pressure chamber is minimized.

[0033] According to some embodiments of this application, at least one pressure chamber of the four rectangular pressure boosting components undergoes expansion or compression movements in sequence.

[0034] According to some embodiments of this application, the at least one pressurizing chamber completes one expansion and compression cycle for each rotation of the drive shaft.

[0035] According to some embodiments of this application, the pump head further includes:

[0036] A first end cap is disposed at one end of the transmission component;

[0037] The water inlet is located on the first end cap;

[0038] The water outlet is located on the first end cap.

[0039] According to some embodiments of this application, the piston chamber further includes:

[0040] The water inlet chamber is connected to the water inlet end;

[0041] The water outlet chamber is connected to the water outlet end.

[0042] According to some embodiments of this application, when the diaphragm expands radially along the drive shaft, the inlet check valve of the at least one pressurizing chamber opens, and source water is drawn into the at least one pressurizing chamber; when it compresses radially along the drive shaft, the outlet check valve of the at least one pressurizing chamber opens, and the pressurized water is discharged.

[0043] According to another aspect of this application, a diaphragm booster pump is also provided, including the pump head of the aforementioned diaphragm booster pump.

[0044] According to another aspect of this application, a water treatment apparatus is also provided, comprising: the aforementioned diaphragm booster pump.

[0045] The diaphragm booster pump provided in this application completely changes the axial deformation of the diaphragm to radial deformation, achieving pressurization through the radial deformation of the diaphragm, effectively increasing the deformation area of ​​the diaphragm and improving the flow rate of the diaphragm booster pump. On this basis, the structure of the piston chamber and the booster chamber is further improved, greatly reducing the requirements for molds and simplifying the manufacturing process. The inlet and outlet ends are located at one end of the pump head, making the product structure more compact. In addition, by setting three eccentric wheels and three swivel wheels, the pump head achieves a dynamic balance state with a resultant torque balance, further reducing vibration and noise. Attached Figure Description

[0046] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without exceeding the scope of protection claimed by this application.

[0047] Figure 1 This is a schematic diagram of a traditional diaphragm booster pump.

[0048] Figure 2 This is an exploded view of a traditional diaphragm booster pump.

[0049] Figure 3 This is a schematic diagram of a diaphragm booster pump according to an example embodiment of this application.

[0050] Figure 4 This is an exploded view of a diaphragm booster pump according to an example embodiment of this application.

[0051] Figure 5 This is an exploded view of a transmission component according to an example embodiment of this application.

[0052] Figure 6 This is a schematic diagram of an eccentric component according to an example embodiment of this application.

[0053] Figure 7 This is a schematic diagram of a balance wheel assembly according to an example embodiment of this application.

[0054] Figure 8 This is an exploded view of the booster component according to an example embodiment of this application.

[0055] Figure 9 This is a schematic diagram of a piston chamber according to an example embodiment of this application.

[0056] Figure 10 This is a schematic diagram of a diaphragm sheet according to an example embodiment of this application.

[0057] Figure 11 This is a schematic diagram of an adapter according to an example embodiment of this application.

[0058] Figure 12 This is a schematic diagram of the first end cap according to an example embodiment of this application.

[0059] Figure 13 This is a schematic diagram of the substrate according to an example embodiment of this application.

[0060] Figure 14 This is a schematic diagram of a diaphragm booster pump head according to an example embodiment of this application.

[0061] Figure 15 This is an exploded view of the diaphragm booster pump head according to an example embodiment of this application.

[0062] Figure 16 This is a schematic diagram of a transmission assembly according to an example embodiment of this application.

[0063] Figure 17 This is a schematic diagram of an eccentric component according to an example embodiment of this application.

[0064] Figure 18 This is a schematic diagram of a balance wheel assembly according to an example embodiment of this application.

[0065] Figure 19 This is a schematic diagram of a balance wheel according to an example embodiment of this application.

[0066] Figure 20 This is a schematic diagram of a balance wheel according to an example embodiment of this application.

[0067] Figure 21 This is a schematic diagram of a diaphragm sheet according to an example embodiment of this application.

[0068] Figure 22 This is an exploded view of the pressurization component according to an example embodiment of this application.

[0069] Figure 23 This is a schematic diagram of a slider according to an example embodiment of this application.

[0070] Figure 24 This is a schematic diagram of a slider according to an example embodiment of this application.

[0071] Figure 25 This is a schematic diagram of the connection structure between the diaphragm and the slider according to an example embodiment of this application.

[0072] Figure 26 This is a schematic diagram of the water inlet and outlet structure according to an example embodiment of this application.

[0073] Figure 27 This is a cross-sectional view of the inlet and outlet water structure according to an example embodiment of this application.

[0074] Figure 28 This is a schematic diagram of the first end cap according to an example embodiment of this application. Detailed Implementation

[0075] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0076] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0077] It should be understood that although the terms first, second, etc., may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Therefore, the first component discussed below may be referred to as the second component without departing from the teachings of this application. As used herein, the term "and / or" includes all combinations of any and more of the associated listed items.

[0078] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of exemplary embodiments and may not be to scale. The modules or processes shown in the drawings are not necessarily essential for implementing this application and therefore should not be used to limit the scope of protection of this application.

[0079] To address the vibration problem of the diaphragm in existing booster pumps caused by axial forces, a booster pump structure has been developed that uses multiple eccentric wheels to simultaneously apply opposing radial forces to the booster chamber. This mutual cancellation of radial forces reduces vibration and noise. However, the inventors have discovered that in this structure, the piston chamber and booster chamber are constructed as paired sector blocks, which places high demands on the mold, involves a complex mold-making process, and presents significant manufacturing challenges; furthermore, vibration cannot be completely eliminated.

[0080] Therefore, this application aims to provide a novel pump head for a diaphragm booster pump. On the one hand, through structural improvements, the manufacturing process is simplified, resulting in a more compact product structure. On the other hand, based on the improved product structure, dynamic balance is achieved through multiple radial forces, thereby completely eliminating vibration. The technical solution of this application will be described in detail below with reference to the accompanying drawings.

[0081] Figure 3 This is a schematic diagram of a diaphragm booster pump according to an example embodiment of this application; Figure 4 This is an exploded view of a diaphragm booster pump according to an example embodiment of this application.

[0082] like Figure 3 and Figure 4 As shown, the pump head 1000 of the diaphragm booster pump provided in this application includes a transmission component 100, a base 200, four rectangular booster components 300, and a first end cap 400. The base 200 is the main structural component of the pump head 1000, the transmission component 100 is disposed inside the base 200, the four rectangular booster components 300 are disposed around the base 200, and the first end cap 400 is disposed at one end of the base 200.

[0083] and Figure 1 and Figure 2 Compared to traditional diaphragm booster pumps, the pump head 1000 of the diaphragm booster pump provided in this application is structurally improved from a cylindrical shape to a rectangular structure. Four rectangular boosting components 300 are arranged in pairs opposite each other along the axis of the transmission component 100 (i.e., the axis of the pump head 1000). Figure 4It can be seen that the basic shape of the booster component 300 is rectangular. Compared with ring-shaped and fan-shaped booster components, the requirements for molds are reduced, the mold opening process is simpler, and the manufacturing process is more streamlined.

[0084] Figure 5 This is an exploded view of a transmission component according to an example embodiment of this application; Figure 6 This is a schematic diagram of an eccentric component according to an example embodiment of this application; Figure 7 This is a schematic diagram of a balance wheel assembly according to an example embodiment of this application.

[0085] like Figure 5 As shown, the transmission assembly 100 includes a drive shaft 110, an eccentric assembly 120, a balance wheel assembly, a set of bearings 140, and a second end cap 150. The eccentric assembly 120 may be a set of eccentric bushings connected to the drive shaft 110 and rotating with the drive shaft 100. Figure 6 As shown, the eccentric assembly 120 includes a first eccentric wheel 121, a second eccentric wheel 122, and a third eccentric wheel 123 arranged sequentially along the drive shaft 110. The third eccentric wheel 123 is eccentrically aligned with the first eccentric wheel 121; the second eccentric wheel 122 is eccentrically opposite to the first eccentric wheel 121, i.e., 180° out of phase. Because the second eccentric wheel 122 is 180° out of phase with the first and third eccentric wheels 121 during rotation, the resulting eccentric forces cancel each other out and the torques are balanced, thereby further eliminating vibration.

[0086] like Figure 5 and Figure 7 As shown, the balance wheel assembly 130 is connected to the eccentric assembly 120 via a set of bearings 140. The rotation of the eccentric assembly 120 causes the balance wheel assembly 130 to oscillate radially along the drive shaft 110. The balance wheel assembly 130 includes, sequentially along the drive shaft 110, a first balance wheel 131, a second balance wheel 132, and a third balance wheel 133. The first balance wheel 131 is connected to the first eccentric wheel 121; the second balance wheel 132 is connected to the second eccentric wheel 122; and the third balance wheel 133 is connected to the third eccentric wheel 123. The third balance wheel 133 oscillates in the same direction as the first balance wheel 131; the second balance wheel 132 oscillates in the opposite direction to the first balance wheel 131, i.e., their phases differ by 180°. According to an example embodiment of this application, the first balance wheel 131 and the third balance wheel 133 can be small balance wheels, and the second balance wheel 132 can be a large balance wheel. Since the second pendulum wheel 132 is 180° out of phase with the first pendulum wheel 131 and the third pendulum wheel 132 during the oscillation process, the resulting radial eccentric forces cancel each other out and the torque is balanced, which can further eliminate vibration.

[0087] The eccentric components are 180° out of phase during rotation, meaning the phase angles are 180° apart, resulting in mutual cancellation of the eccentric forces and torque balance.

[0088] The eccentric assembly includes a first eccentric wheel, a second eccentric wheel, and a third eccentric wheel arranged sequentially along the drive shaft; the third eccentric wheel and the first eccentric wheel are eccentric in the same direction, i.e., the eccentric distances are equal and the eccentric directions are the same; the second eccentric wheel and the first eccentric wheel are eccentric in opposite directions, i.e., the eccentric distances are equal and the eccentric directions are opposite.

[0089] During the oscillation process, the resultant force of the radial eccentric force along the drive shaft of the balance wheel assembly is zero and the resultant torque is balanced.

[0090] The balance wheel assembly includes:

[0091] The first balance wheel is connected to the first eccentric wheel;

[0092] The second balance wheel is connected to the second eccentric wheel;

[0093] The third balance wheel is connected to the third eccentric wheel;

[0094] The third balance wheel swings in the same direction as the first balance wheel; the second balance wheel swings in the opposite direction to the first balance wheel; that is, the second balance wheel swings in the same direction as the first balance wheel, but with a phase angle difference of 180°.

[0095] like Figure 7 As shown, a set of swing arms 134 are fixedly mounted on the first balance wheel 131, the second balance wheel 132, and the third balance wheel 133, respectively. During the oscillation of the balance wheel assembly 130, the swing arms 134 are connected to the diaphragm through the adapter in the pressurizing component, driving the diaphragm to deform radially, thereby expanding or compressing it.

[0096] Figure 8 This is an exploded view of the booster component according to an example embodiment of this application; Figure 9 This is a schematic diagram of a piston chamber according to an example embodiment of this application; Figure 10 This is a schematic diagram of a diaphragm sheet according to an example embodiment of this application; Figure 11 This is a schematic diagram of an adapter according to an example embodiment of this application.

[0097] like Figure 8As shown, each pressurizing component 300 includes a piston chamber 310, a diaphragm 320, an adapter 330, a sealing ring 340, a housing 350, a set of inlet check valves 360, and a set of drain check valves 370. At least one pressurizing chamber is provided on the inner wall of the piston chamber 310. The diaphragm 320 closes with the piston chamber 310 to form the at least one pressurizing chamber. The housing 350 and the sealing ring 340 are used to accommodate and seal the piston chamber 310. The diaphragm 320 is connected to the balance wheel assembly via the adapter 330. The oscillation of the balance wheel assembly drives the diaphragm 320 to deform radially along the drive shaft via the adapter 330, causing the at least one pressurizing chamber to expand or compress radially. The piston chamber 310 and the diaphragm 320 can be integral or assembled.

[0098] like Figure 9 As shown, the piston chamber 310 is provided with an inlet chamber 311, an outlet chamber 312, and at least one pressurizing chamber, formed by a diaphragm sheet tightly adhering to and sealing the inner wall of the piston chamber 310. According to an example embodiment of this application, the at least one pressurizing chamber includes a first pressurizing chamber 313, a second pressurizing chamber 314, and a third pressurizing chamber 315. The first pressurizing chamber 313 and the third pressurizing chamber 315 are small pressurizing chambers, and the second pressurizing chamber 314 is a large pressurizing chamber. The inlet chamber 311 and the outlet chamber 312 are located at one end of the piston chamber 310. Each pressurizing chamber is provided with an inlet 316 and an outlet 317, respectively equipped with an inlet check valve 360 ​​and an outlet check valve 370.

[0099] like Figure 10 As shown, the diaphragm 320 includes a first deformation region 323, a second deformation region 324, and a third deformation region 325, which respectively conform to... Figure 9 The first pressurizing chamber 313, the second pressurizing chamber 314, and the third pressurizing chamber 315 correspond to each other. A set of protrusions 326 are provided on each deformation zone of the diaphragm 320. The protrusions 326 are connected to the swing arm of the balance wheel via an adapter. Thus, Figure 9 The first pressurization chamber 313 in the middle is composed of Figure 7 The first balance wheel 131 drive Figure 10 The first deformation zone 323 of the diaphragm 320 deforms to achieve radial expansion or compression; the second pressurization chamber 314 is composed of... Figure 7 The second balance wheel 132 drive Figure 10 The second deformation zone 324 of the diaphragm 320 deforms to achieve radial expansion or compression; the third pressurization chamber 315 is composed of... Figure 7 The third balance wheel 133 drive Figure 10 The third deformation zone 325 of the diaphragm 320 deforms to achieve radial expansion or compression.

[0100] like Figure 8 and Figure 11As shown, adapter 330 includes a first small adapter, a large adapter, and a second small adapter. One end of the first small adapter is connected to... Figure 10 The diaphragm 320 is connected to the protrusion 326 of the first deformation region 323, and the other end is connected to Figure 7 The first balance wheel 131 is connected to the swing arm 134; one end of the large adapter is connected to... Figure 10 The second deformation region 324 of the diaphragm 320 is connected to the protrusion 326, and the other end is connected to Figure 7 The second balance wheel 132 is connected to the swing arm 134; one end of the second small adapter is connected to Figure 10 The third deformation region 325 of the diaphragm 320 is connected to the protrusion 326, and the other end is connected to Figure 7 The third balance wheel 133 is connected to the swing arm 134.

[0101] Figure 5 The transmission components 300 and 4 Figure 8 After the pressurizing components 300 are assembled, they are arranged in pairs opposite each other along the axis of the rotating shaft 110. The oppositely arranged pressurizing chambers form a pair. The first pressurizing chamber 313 of the piston chamber 310 can be a first small pressurizing chamber, the second pressurizing chamber 314 can be a large pressurizing chamber, and the third pressurizing chamber 315 can be a second small pressurizing chamber. The third pressurizing chamber 315 and the first pressurizing chamber 313 expand or compress synchronously; the second pressurizing chamber 314 and the first pressurizing chamber 313 compress or expand in opposite directions. For example, when the first and second small pressurizing chambers expand, the large pressurizing chamber compresses; when the first and second small pressurizing chambers compress, the large pressurizing chamber expands.

[0102] Figure 12 This is a schematic diagram of the first end cap according to an example embodiment of this application; Figure 13 This is a schematic diagram of the substrate according to an example embodiment of this application.

[0103] like Figure 12 As shown, the first end cap 410 is provided with an inlet end 411 and an outlet end 412. The end face of the base 200 is provided with a first outlet 201 and a first inlet 202, which, after assembly, are connected to the outlet end 412 and inlet end 411 of the first end cap 410, respectively. The four sides of the base 200 are respectively provided with second inlets 203 and second outlets 204, which, after assembly, are connected to the inlet and outlet chambers of the piston chamber, respectively, thus forming inlet and outlet water channels. During operation, raw water enters from the inlet end 411 of the first end cap 410, forms an inlet water channel through the first inlet 202 and second inlet 203 on the base 200, and then... Figure 9The water enters the inlet chamber 311 through the inlet of the piston chamber 310, and then enters the booster chamber 313 and / or booster chamber 314 and / or booster chamber 315 through the booster chamber inlet equipped with an inlet check valve. The pressurized water enters the outlet chamber 312 through the booster chamber outlet equipped with an outlet check valve. The pressurized water flows through the outlet of the outlet chamber 312 into the outlet channel formed by the second outlet hole 204 and the first outlet 201 of the base 200, and finally exits from the outlet end 412 of the first end cover 410. The pump head provided in this application sets the inlet and outlet ends at one end of the pump, making the product structure more compact.

[0104] like Figure 13 As shown, the four sides of the base 200 are respectively provided with a first mounting hole 210, a second mounting hole 220, and a third mounting hole 230, which are used to install the first adapter, the second adapter, and the third adapter of the booster component, respectively. The base 200 also includes a mounting base 240, which is disposed at the end opposite to the first end cap. During pump head assembly, the transmission component is installed inside the base and is connected and fixed to the second end cap of the transmission component through the mounting base 240.

[0105] See Figure 3 and Figure 4 During operation, the assembled pump head 1000 experiences eccentric rotation of the eccentric assembly 120, which drives the balance wheel assembly 130 in radial reciprocating motion. The balance wheel assembly is connected to the diaphragm 320 via an adapter 330. The reciprocating motion of the balance wheel assembly 130 causes the deformation zone of the diaphragm 320 to undergo radial expansion or compression. During rotation, the eccentric forces of the eccentric assembly 120 cancel each other out and the torque is balanced. The radial eccentric force generated by the eccentric motion of the balance wheel assembly 130 results in zero net force and balanced net torque. Each of the four rectangular pressurizing components 300 sequentially undergoes expansion or compression. Each pressurizing chamber completes one expansion and compression cycle per revolution of the drive shaft 110. The first balance wheel 131, the third balance wheel 133, and the second balance wheel 132 simultaneously deviate from or move closer to the axis of the drive shaft 110, causing the radial forces to cancel each other out, resulting in a net force of zero.

[0106] For example, Figure 6 The thinner parts of the first eccentric wheel 121 and the third eccentric wheel 123 rotate to Figure 4 When the first balance wheel 131 and the third balance wheel 133 are in the same position, the deformation area of ​​the diaphragm 320 corresponding to the first balance wheel 131 and the third balance wheel 133 is in a near-axial position, and the volume of the first pressure chamber and the third pressure chamber is the largest; the eccentric position of the second eccentric wheel 122 is opposite to that of the first eccentric wheel 121 and the third eccentric wheel 123, and at the same time, the thinner part of the second eccentric wheel 122 rotates to the position of the second balance wheel 132, and the deformation area of ​​the corresponding diaphragm 320 is in a near-axial position, and the volume of the second pressure chamber is the largest.

[0107] Similarly, when the thicker parts of the first eccentric wheel 121 and the third eccentric wheel 123 rotate to the corresponding positions of the first balance wheel 131 and the third balance wheel 133, the deformation areas of the diaphragm 320 corresponding to the first balance wheel 131 and the third balance wheel 133 are located off-axis, and the volumes of the first and third pressurizing chambers are minimized. Simultaneously, the thicker part of the second eccentric wheel 122 rotates to the position of the second balance wheel 132, and the deformation area of ​​the corresponding diaphragm 320 is located off-axis, minimizing the volume of the second pressurizing chamber.

[0108] When the diaphragm 320 expands radially along the drive shaft 110, the inlet check valve of the at least one pressurizing chamber opens, and source water is drawn into the at least one pressurizing chamber; when it compresses radially along the drive shaft 110, the outlet check valve of the at least one pressurizing chamber opens, and the pressurized water is discharged.

[0109] According to another aspect of the application, a diaphragm booster pump is provided, including the pump head of the diaphragm booster pump described above.

[0110] According to another aspect of the application, a water treatment apparatus is also provided, including the aforementioned diaphragm booster pump.

[0111] The diaphragm booster pump provided in this application uses an eccentric assembly to rotate, driving a swing wheel to generate radial reciprocating motion, thus causing the diaphragm to deform radially. Compared with traditional diaphragm booster pumps, with the pump body volume and motor speed remaining constant, the radial deformation of the diaphragm effectively increases the deformation area of ​​the diaphragm, increasing the volumetric variation of the booster chamber, thereby increasing the flow rate of the diaphragm booster pump. Secondly, the pump head of the diaphragm booster pump provided in this application further improves the structure of the piston chamber and booster chamber, greatly reducing the requirements for molds and simplifying the manufacturing process. Furthermore, during the rotation of the eccentric assembly, the eccentric forces cancel each other out and the torque is balanced. The first swing wheel, the third small swing wheel, and the second swing wheel simultaneously deviate from or move closer to the axis of the motor shaft, and the radial forces cancel each other out, resulting in zero net force and balanced net torque, significantly reducing vibration and noise, achieving a relatively quiet operation. In the pump head of the diaphragm booster pump provided in this application, the inlet and outlet ends are changed from being at both ends of the pump to being located at one end of the pump, making the product structure more compact.

[0112] Another embodiment of the present invention has some minor changes compared to embodiment 1. The transmission unit of the pump head includes the eccentric assembly, the transmission assembly, the bearing, and a slider that is partially fixed to the balance wheel assembly.

[0113] The balance wheel is provided with a guide rail, and the slider is provided with a sliding groove. The guide rail and the sliding groove are fitted with a clearance, so that the slider and the balance wheel slide relative to each other along the direction of the guide rail.

[0114] The diaphragm sheet is provided with multiple diaphragm sheet inverted fastening groups, and the diaphragm sheet inverted fastenings are connected to the slider inverted fastening groove.

[0115] The slider includes a first slider, a second slider, and a third slider. The first slider is invertedly connected to the first inverted group of the diaphragm and the first slider groove is connected to the first balance wheel slide rail. The second slider is invertedly connected to the second inverted group of the diaphragm and the second slider groove is connected to the second balance wheel slide rail. The third slider is invertedly connected to the third inverted group of the diaphragm and the third slider groove is connected to the third balance wheel slide rail.

[0116] The diaphragm sheet inverted fastening assembly cooperates with the slider inverted fastening groove, and the fixing groove on the diaphragm sheet cooperates with the fixing pin on the slider, increasing the relative motion force between the diaphragm and the slider.

[0117] Two pressure chamber groups arranged symmetrically with the center point of the piston chamber as the center form a pair, that is, pressure chambers are arranged in pairs, and the center lines of the pair of pressure chamber groups are on the same diameter line of the piston chamber.

[0118] At least two pairs, preferably three or six pairs, of the pressurizing chambers undergo expansion or compression movements.

[0119] The pressurization chamber assembly includes a first small pressurization chamber corresponding to the first balance wheel, a large pressurization chamber corresponding to the second balance wheel, and a second small pressurization chamber corresponding to the third balance wheel. The first and second small pressurization chambers expand or compress synchronously; when the first and second small pressurization chambers expand, the large pressurization chamber compresses; when the first and second small pressurization chambers compress, the large pressurization chamber expands. In particular, the sum of the compression volumes of the first and second small pressurization chambers is equal to the expansion volume of the large pressurization chamber, and conversely, the sum of the expansion volumes of the first and second small pressurization chambers is equal to the compression volume of the large pressurization chamber.

[0120] The portion of the diaphragm that contacts the slider is the diaphragm deformation zone, where deformation occurs.

[0121] The balance wheel of the transmission assembly rotates eccentrically, driving the slider to reciprocate radially. The slider slides relative to the balance wheel, and the slider causes the diaphragm to deform radially, causing the pressurization chamber to expand or compress radially.

[0122] Each time the motor shaft rotates once, each pressure chamber in the pressure chamber group completes one expansion and compression cycle.

[0123] The first, third, and second balance wheels simultaneously deviate from or move closer to the axis of the motor shaft, and the radial forces they experience cancel each other out, resulting in a net force of zero.

[0124] When the thinner portions of the first and third eccentric wheels rotate to the position of the linked balance wheel, the balance wheel pushes the corresponding diaphragm deformation zone to a position near the center point of the piston chamber, and the volume of the small booster chamber corresponding to the small balance wheel is the largest. The eccentric position of the second eccentric wheel is opposite to that of the first and second eccentric wheels. At this time, when the thinner portion of the second eccentric wheel rotates to the position of the linked second balance wheel, the corresponding diaphragm deformation zone is located near the center point of the piston chamber, and the volume of the booster chamber is the largest.

[0125] When the thicker parts of the first eccentric wheel and the third eccentric wheel rotate to the position of the first balance wheel and the second balance wheel linked with them, the diaphragm deformation area corresponding to the balance wheel is located far from the center point of the piston chamber, and the volume of the boosting chamber is minimized; at the same time, when the thicker part of the second eccentric wheel rotates to the position of the second balance wheel linked with it, the corresponding diaphragm deformation area is located far from the center point of the piston chamber, and the volume of the boosting chamber is minimized.

[0126] The diaphragm sheet includes at least one diaphragm sheet or multiple diaphragm sheet assemblies, and the multiple diaphragm sheet assemblies are assembled to form the diaphragm sheet.

[0127] When the diaphragm moves in the expansion direction, the inlet check valve opens and the outlet check valve closes, and the source water is drawn into the pressurization chamber; when the diaphragm moves in the compression direction, the inlet check valve closes and the outlet check valve opens, and the pressurized water is discharged.

[0128] The piston chamber includes at least one piston chamber assembly, and multiple piston chamber assemblies are assembled to form a piston chamber.

[0129] The diaphragm or the piston chamber can be integral or assembled.

[0130] The diaphragm is in close contact with the inner wall of the piston chamber, sealing off the water outlet chamber, the pressurization chamber, and the water inlet chamber.

[0131] The diaphragm clip and the slider clip are engaged in the reverse snapping groove, so that the diaphragm and the slider are relatively fixed. The fixing groove on the diaphragm and the fixing pin on the slider are engaged to increase the relative motion force between the diaphragm and the slider, so that the diaphragm and the slider are not easy to rub against each other.

[0132] The guide rail on the balance wheel and the groove on the slider work together to allow the slider and the balance wheel to slide relative to each other along the guide rail.

[0133] The rotation of the eccentric component will drive the balance wheel to produce eccentric motion. The balance wheel and the slider slide relative to each other, thereby converting the eccentric motion of the balance wheel into radial linear reciprocating motion. This makes the diaphragm deformation direction radial. Compared with traditional diaphragm booster pumps, this invention maximizes the use of the pump head volume. With the pump body volume remaining unchanged, it obtains the largest diaphragm movement area. When the diaphragm reciprocating motion amplitude is the same, it increases the volume variation of the working chamber, thereby increasing the flow rate of the diaphragm booster pump.

[0134] During rotation, the eccentric forces of the eccentric components cancel each other out and the torque is balanced. The first, third, and second balance wheels move away from or towards the axis of the motor shaft at the same time. The radial forces cancel each other out, the resultant force is zero, and the resultant torque is balanced, which greatly reduces vibration and noise, and can achieve a relatively quiet effect.

[0135] The buffer chamber is located inside the pressurization chamber and is a part of the space inside the pressurization chamber. This part of the space increases as the pressure increases and decreases as the pressure decreases. When the diaphragm moves upward, the pressurization chamber decreases and the pressure inside the pressurization chamber increases. The buffer chamber increases in volume due to the increase in pressure, thereby slowing down the increase in pressure inside the pressurization chamber.

[0136] Multiple buffer chambers are evenly arranged on the diaphragm. When the working chamber pressure increases instantaneously, the volume of the buffer chamber increases, slowing down the increase in working chamber pressure. When the working chamber pressure decreases instantaneously, the volume of the buffer chamber decreases, slowing down the decrease in working chamber pressure. This makes the working chamber pressure more gradual during operation, thereby reducing the pulsation of the outlet water pressure and minimizing the impact of the outlet water pressure pulsation on the system pipeline.

[0137] The slider slides on the balance wheel, eliminating the tangential motion caused by the eccentric motion of the balance wheel, so that the diaphragm can achieve radial linear reciprocating motion, thereby improving the diaphragm life, reducing friction loss, and improving the efficiency of the water pump.

[0138] The motor shaft drives the eccentric assembly to rotate eccentrically. The eccentric rotation of the eccentric assembly drives the transmission assembly to move eccentrically. The transmission assembly is connected to the diaphragm through the slider. The slider and the balance wheel can slide relative to each other. The eccentric movement of the transmission assembly causes the slider to reciprocate along the diameter of the rotating shaft. The slider drives the deformation zone of the diaphragm to perform radial expansion or compression. During the rotation of the eccentric assembly, the eccentric forces cancel each other out and the torque is balanced. The resultant force of the eccentric force generated by the eccentric movement of the transmission assembly is zero and the resultant torque is balanced, so that the pressurization chamber expands or compresses radially. When the deformation zone of the diaphragm moves in the expansion direction, the inlet check valve opens, and the source water is drawn into the pressurization chamber from the inlet chamber through the inlet port. When the deformation zone of the diaphragm moves in the compression direction, the outlet check valve opens, and the pressurized water is forced out, enters the outlet chamber through the outlet port, and is discharged from the outlet chamber.

[0139] Specifically, in another embodiment of the present invention, Figure 14 This is a schematic diagram of the diaphragm booster pump in this embodiment. Figure 15 This is an exploded view of a diaphragm booster pump according to an embodiment of this application.

[0140] like Figure 14 As shown, the diaphragm booster pump head 1000 of the pump embodiment includes a transmission component 100, a base 200, four rectangular booster components 300, and a first end cap 400. The base 200 is the main structural component of the pump head 1000, the transmission component 100 is disposed inside the base 200, the four rectangular booster components 300 are disposed around the base 200, and the first end cap 400 is disposed at one end of the base 200.

[0141] and Figure 3 and Figure 4 Compared to the embodiments in the previous embodiment, the eccentric wheel assembly 120, the balance wheel assembly 130, the diaphragm sheet 320 and the adapter 330 in the diaphragm booster pump head 1000 provided in this embodiment have another implementation.

[0142] like Figure 16 As shown, the transmission assembly 100 includes a drive shaft 110, an eccentric assembly 120, a balance wheel assembly 130, a bearing assembly 140, and a second end cap 150. Figure 6 In contrast, the eccentric component 120 in this embodiment consists of three independent eccentric wheels. For example... Figure 17 As shown, the eccentric assembly 120 includes a first eccentric wheel 121, a second eccentric wheel 122, and a third eccentric wheel 123.

[0143] like Figure 18 As shown, the balance wheel assembly 130 includes a first balance wheel 131, a second balance wheel 132, and a third balance wheel 133.

[0144] like Figure 19 As shown, the first balance wheel 131 includes a slide rail 1311 and a sliding surface 1312. The third balance wheel 133 has the same structure as the balance wheel 131.

[0145] like Figure 20 As shown, the second balance wheel 132 includes a slide rail 1321 and a sliding surface 1322.

[0146] like Figure 21 As shown, the diaphragm 320 includes a water inlet 321, a water outlet 322, a first deformation zone 323, a second deformation zone 324, a third deformation zone 325, a buffer cavity 327, a first inverted buckle group 3291, a second inverted buckle group 3292, a third inverted buckle group 3293, a first limiting groove 3281, a second limiting groove 3282, and a third limiting groove 3283.

[0147] like Figure 22 As shown, the slider 330 includes a first slider 331, a second slider 332, and a third slider 333.

[0148] like Figure 23 As shown, the first slider 331 includes a limiting pin 3311, a buckle groove 3312, a sliding groove 3313, and a sliding surface 3314. The third slider 333 has the same structure as the first slider 331.

[0149] like Figure 24 As shown, the second slider 332 includes a limiting pin 3321, an undercut groove 3322, a sliding groove 3323, and a sliding surface 3324.

[0150] like Figure 25 As shown, the first undercut assembly 3291 on the diaphragm 320 engages with the undercut groove 3312 on the first slider 331, thus fixing the diaphragm 320 and the first slider 331 together. The first fixing groove 3291 on the diaphragm 320 is press-fitted with the limiting pin 3311 on the first slider 331, increasing the bonding force between the diaphragm 320 and the first slider 331. Similarly, the second undercut assembly 3292 on the diaphragm 320 engages with the undercut groove 3322 on the second slider 332, and the second fixing groove 3292 on the diaphragm 320 is press-fitted with the limiting pin 3321 on the second slider 332; the third undercut assembly 3293 on the diaphragm 320 engages with the undercut groove 3332 on the third slider 333, and the third fixing groove 3293 on the diaphragm 320 is press-fitted with the limiting pin 3331 on the second slider 333.

[0151] like Figure 25 As shown, the groove 3313 on the first slider 331 and the slide rail 1311 on the first balance wheel 131 are in clearance fit, and the sliding surface 3314 on the first slider 331 and the sliding surface 1312 on the first balance wheel 131 are in contact with each other. This allows the first slider 331 and the first balance wheel 131 to move relative to each other along the slide rail 1311. Similarly, the second slider 332 and the third slider 333 are respectively connected to the second balance wheel 132 and the third balance wheel 133 in the same manner.

[0152] like Figure 14 As shown, the advantage of this structure is that the slider 330 slides on the balance wheel 130, eliminating the tangential motion caused by the eccentric motion of the balance wheel 130, so that the diaphragm 320 can achieve radial linear reciprocating motion, improving diaphragm life, reducing friction loss, and improving water pump efficiency.

[0153] like Figure 26 and Figure 27As shown, valve seat 310, pump housing 350, and sealing ring 340 form a first inlet chamber 351 and a first outlet chamber 352. Diaphragm 320 and valve seat 310 form a working chamber 314. Source water enters through inlet 411, passes through the second inlet chamber 414, and simultaneously enters four inlet holes 2021, 2022, 2023, and 2024. The source water entering 2021 exits through the inlet channel from hole 2031, then enters inlet hole 311, and the water entering inlet hole 311 enters the first inlet chamber 351. When diaphragm 320 moves downwards, the volume of working chamber 314 increases, check valve 360 ​​opens, and check valve 370 closes, allowing water in the first inlet chamber 351 to flow into working chamber 314, completing the water intake action. When the diaphragm 320 moves upward, the volume of the working chamber 314 decreases, the one-way valve 360 ​​closes, and the one-way valve 370 opens. Water in the working chamber 314 is discharged to the first outlet chamber 352. The first outlet chamber 352 is connected to the outlet hole 312, and the outlet hole 2041 and outlet hole 2011 are connected. Water in the working chamber 312 is discharged through this outlet hole 2011. The pressurized water in the four directions of the first outlet chambers converges into the second outlet chamber 415 through outlet holes 2011, 2012, 2013, and 2014 respectively. The high-pressure water in the second outlet chamber 415 is discharged from the pump head through outlet 412, completing the pressurization. The inlet and outlet of the pressurization chambers distributed in four directions are connected by a parallel water circuit. A static end-face sealing structure separates the inlet and outlet chambers. This reduces the number of connecting joints between chambers, thereby reducing the risk of pipeline leakage. By incorporating the water circuit within the pump body, the volume occupied by the water circuit is significantly reduced, making the pump head more compact, simplifying the connection pipeline, reducing the size, and lowering the risk of leakage.

[0154] like Figure 21 As shown, the diaphragm 320 has three deformation zones, including a first deformation zone 323, a second deformation zone 324, and a third deformation zone 325. Each deformation zone is filled with buffer chambers 327. The buffer chambers 327 have the function of reducing the peak pressure value of the working chamber 314 and increasing the peak and valley pressure values ​​of the working chamber 314, thereby reducing the pressure pulsation at the outlet 412 and significantly reducing noise.

[0155] The working principle of the buffer cavity 327 is as follows: Figure 27As shown, the buffer chamber 327 is disposed within the working chamber 314, constituting a portion of the space within the working chamber 314. The volume of this portion of space increases as the pressure within the working chamber 314 increases and decreases as the pressure within the working chamber 314 decreases. When the diaphragm 320 moves upward from its lowest point, the volume of the working chamber 314 decreases, and the pressure within the working chamber 314 increases instantaneously. The buffer chamber 327 increases in volume due to the increased pressure, absorbing some of the pressure energy, thereby reducing the peak pressure within the working chamber 314. When the diaphragm 320 moves downward from its highest point, the volume of the working chamber 314 increases, and the pressure within the working chamber 314 decreases instantaneously. The buffer chamber 327 decreases in volume due to the decreased pressure, releasing the stored pressure energy, thereby increasing the trough pressure within the working chamber 314 and thus reducing the amplitude of pressure changes within the working chamber 314.

[0156] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Therefore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. In summary, the content of this specification should not be construed as a limitation of this application.

Claims

1. A pump head for a diaphragm booster pump, characterized in that, The pump head includes: a drive shaft, an eccentric assembly, a balance wheel assembly, a pressurizing chamber, and a diaphragm; the rotation of the eccentric assembly causes the balance wheel assembly to swing radially along the drive shaft; the swinging of the balance wheel assembly causes the diaphragm to deform radially along the drive shaft, thereby expanding or compressing the pressurizing chamber in the radial direction. The eccentric assembly includes a first eccentric wheel, a second eccentric wheel, and a third eccentric wheel arranged sequentially along the drive shaft; the third eccentric wheel and the first eccentric wheel have the same eccentricity; the second eccentric wheel and the first eccentric wheel have opposite eccentricity. The balance wheel assembly includes: The first balance wheel is connected to the first eccentric wheel; The second balance wheel is connected to the second eccentric wheel; The third balance wheel is connected to the third eccentric wheel; The third balance wheel swings in the same direction as the first balance wheel; The second balance wheel swings in the opposite direction to the first balance wheel; The pressurization chamber includes: The first pressurization chamber is driven by the first swing wheel to deform the diaphragm, thereby performing radial expansion or compression. The second pressurization chamber is driven by the second swing wheel to deform the diaphragm, thereby performing radial expansion or compression. The third pressurization chamber is driven by the third swing wheel to deform the diaphragm, thereby performing radial expansion or compression. The balance wheel of the balance wheel assembly rotates eccentrically, driving the slider to reciprocate radially. The slider slides relative to the balance wheel, and the slider causes the diaphragm to deform radially, causing the pressurization chamber to expand or compress radially.

2. The pump head of the diaphragm booster pump according to claim 1, characterized in that, The eccentric components are 180° out of phase during rotation, and the resulting eccentric forces cancel each other out and the torques are balanced.

3. The pump head of the diaphragm booster pump according to claim 1, characterized in that, During the oscillation process, the resultant force of the radial eccentric force along the drive shaft of the balance wheel assembly is zero and the resultant torque is balanced.

4. The pump head of the diaphragm booster pump according to claim 1, characterized in that, The third pressurizing chamber expands or compresses synchronously with the first pressurizing chamber; The second pressurizing chamber compresses or expands in the opposite direction to the first pressurizing chamber.

5. The pump head of the diaphragm booster pump according to claim 4, characterized in that, When the thinner parts of the first eccentric wheel and the third eccentric wheel rotate to the corresponding first balance wheel and the third balance wheel, the deformation area of ​​the diaphragm plate corresponding to the first balance wheel and the third balance wheel is in a near-axial position, and the volume of the first pressure chamber and the third pressure chamber is at its maximum. The second eccentric wheel is eccentrically opposite to the first eccentric wheel and the third eccentric wheel. At the same time, the thinner part of the second eccentric wheel rotates to the position of the second balance wheel, and the deformation zone of the corresponding diaphragm is located near the axis, and the volume of the second pressurization chamber is the largest.

6. The pump head of the diaphragm booster pump according to claim 4, characterized in that, When the thicker parts of the first eccentric wheel and the third eccentric wheel rotate to the corresponding first balance wheel and the third balance wheel, the deformation area of ​​the diaphragm corresponding to the first balance wheel and the third balance wheel is at the far axis position, and the volume of the first pressure chamber and the third pressure chamber is minimized; at the same time, the thicker part of the second eccentric wheel rotates to the position of the second balance wheel, and the deformation area of ​​the corresponding diaphragm is at the far axis position, and the volume of the second pressure chamber is minimized.

7. The pump head of the diaphragm booster pump according to claim 1, characterized in that, The pressure chambers of the four rectangular pressure boosting components undergo expansion or compression movements in sequence.

8. The pump head of the diaphragm booster pump according to claim 1, characterized in that, For each rotation of the drive shaft, at least one of the pressurizing chambers completes one expansion and compression cycle.

9. The pump head of the diaphragm booster pump according to claim 8, characterized in that, When the diaphragm expands radially along the drive shaft, the inlet check valve of the pressurization chamber opens, and source water is drawn into the at least one pressurization chamber; when it compresses radially along the drive shaft, the outlet check valve of the pressurization chamber opens, and the pressurized water is discharged.

10. A diaphragm booster pump, characterized in that, include: The pump head of the diaphragm booster pump according to any one of claims 1-9.

11. A water treatment device, characterized in that, include: The diaphragm booster pump according to claim 10.

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