Transmission assembly of diaphragm booster pump, pump head and diaphragm booster pump

Abstract

The application provides a transmission assembly of a diaphragm booster pump, a pump head and a diaphragm booster pump. The transmission assembly comprises an eccentric assembly which rotates under the drive of a drive shaft; a balance wheel assembly which is connected with the eccentric assembly, and the rotation of the eccentric assembly drives the balance wheel assembly to swing along the radial direction of the drive shaft; a sliding block is arranged on a balance wheel of the balance wheel assembly; the balance wheel performs eccentric rotation, drives the sliding block to perform radial reciprocating motion, the sliding block slides relative to the balance wheel, and the sliding block drives the diaphragm to perform radial deformation, so that the booster cavity is expanded or compressed in the radial direction. Through the radial deformation of the diaphragm of the booster component arranged in pairs, the manufacturing process is simplified while the flow is improved; the transmission component meets the static balance and the dynamic balance when running, so that the vibration is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a transmission assembly of a diaphragm booster pump, a pump head and the diaphragm booster pump. BACKGROUND

[0002] The working principle of the diaphragm booster pump is that the periodic movement of the diaphragm causes the volume to change, which drives the rubber valve to periodically close and open the inlet and outlet water ports on the valve seat to achieve pressure boosting.

[0003] The traditional diaphragm booster pump, as shown in FIGS. 1 and 2, includes a motor, an eccentric wheel, three balance wheels, a diaphragm divided into three piston actuation areas, three pistons, a piston chamber containing three groups of water inlet ports and one group of water outlet ports, a water inlet one-way valve, a water outlet one-way valve, a pump head cover containing water inlet holes and water outlet holes, and water inlet flow channels and water outlet flow channels separated from each other. Figure 1 and Figure 2 The water inlet flow channel of the pump head cover and the piston chamber form a raw water chamber, the water outlet flow channel of the pump head cover and the piston chamber form a high-pressure water chamber, and the piston chamber and the diaphragm form three independent pressure boosting water chambers.

[0004] When the motor rotates, it will drive the eccentric wheel to rotate. The balance wheels cannot rotate due to restrictions, so the three balance wheels can only produce axial reciprocating actuation in turn, and the three piston actuation areas of the diaphragm will be subjected to synchronous axial expansion-compression movement by the axial reciprocating movement of the balance wheels. When the piston actuation area of the diaphragm moves in the expansion direction, the water inlet one-way valve opens, and the source water is sucked into the pressure boosting water chamber through the water inlet port. When the piston actuation area of the diaphragm moves in the compression direction, the water outlet one-way valve opens, and the boosted water is pressed out through the water outlet port into the high-pressure water chamber, and then discharged out of the pump through the water outlet hole of the pump head cover to provide the required high-pressure water.

[0005] The disadvantage of the above-mentioned diaphragm booster pump is that during operation, the three balance wheels will push the diaphragm in turn, constantly applying force in the same direction. When the motor shaft rotates at a speed of 700-1200 rpm, the vibration caused by the three balance wheels acting in turn is extremely large, resulting in relatively large noise. In addition, the flow rate of the above-mentioned diaphragm booster pump is small. To increase the flow rate, the motor speed needs to be increased or the pump body size needs to be increased. However, increasing the motor speed will make the vibration and noise problem more serious, and increasing the size will make it difficult to install the booster pump with existing equipment.

[0006] In order to solve the vibration problem of the diaphragm caused by the axial force of the above-mentioned booster pump, a booster pump structure using multiple eccentric wheels to simultaneously apply opposite radial forces to a group of fan-shaped pressure boosting chambers has appeared, which reduces vibration and noise and increases flow rate by mutual cancellation of radial forces. However, the fan-shaped pressure boosting chamber structure has difficulties such as complex mold opening process and difficult manufacturing during the manufacturing process, and the vibration cannot be completely eliminated. SUMMARY

[0007] In order to reduce the manufacturing difficulty of the booster pump and further eliminate the vibration, the application provides a transmission assembly of a diaphragm booster pump, comprising a booster cavity and a diaphragm, characterized in that the transmission assembly comprises an eccentric assembly and a balance wheel assembly.

[0008] The balance wheel of the balance wheel assembly is provided with a sliding block.

[0009] The sliding block slides relative to the balance wheel, and the sliding block drives the diaphragm to be radially deformed, so that the booster cavity is radially expanded or compressed along the driving shaft of the transmission assembly.

[0010] The application further provides a pump head of a diaphragm booster pump, comprising:

[0011] a transmission component, comprising,

[0012] a driving shaft;

[0013] an eccentric assembly connected to the driving shaft and rotating under the driving of the driving shaft;

[0014] a balance wheel assembly connected to the eccentric assembly, and the rotation of the eccentric assembly drives the balance wheel assembly to swing radially along the driving shaft;

[0015] four rectangular booster components connected to the transmission component and arranged opposite to each other along the axis of the driving shaft, and the booster component comprises,

[0016] a piston chamber provided with at least one booster cavity on the inner wall thereof;

[0017] a diaphragm which, together with the piston chamber, forms the at least one booster cavity;

[0018] The swing of the balance wheel assembly drives the diaphragm to be deformed radially along the driving shaft, so that the at least one booster cavity is expanded or compressed in the radial direction.

[0019] According to some embodiments of the application, the eccentric assembly has a phase difference of 180° during rotation, and the eccentric forces generated thereby are offset and the moments are balanced.

[0020] According to some embodiments of the application, the eccentric assembly comprises a first eccentric wheel, a second eccentric wheel and a third eccentric wheel arranged in sequence along the driving shaft; the third eccentric wheel and the first eccentric wheel have the same eccentricity; and the second eccentric wheel has an eccentricity opposite to that of the first eccentric wheel.

[0021] According to some embodiments of the application, during the swing of the balance wheel assembly, the resultant force of the radial eccentric forces along the driving shaft is zero and the resultant moment is balanced.

[0022] According to some embodiments of the present application, the balance wheel assembly comprises:

[0023] a first balance wheel connected to the first eccentric wheel;

[0024] a second balance wheel connected to the second eccentric wheel;

[0025] a third balance wheel connected to the third eccentric wheel;

[0026] the third balance wheel has the same swing direction as the first balance wheel;

[0027] the second balance wheel has the opposite swing direction as the first balance wheel.

[0028] According to some embodiments of the present application, the at least one pressure chamber comprises:

[0029] a first pressure chamber driven by the first balance wheel to deform the diaphragm for radial expansion or compression;

[0030] a second pressure chamber driven by the second balance wheel to deform the diaphragm for radial expansion or compression;

[0031] a third pressure chamber driven by the third balance wheel to deform the diaphragm for radial expansion or compression.

[0032] According to some embodiments of the present application, the third pressure chamber and the first pressure chamber are synchronous expansion or compression; the second pressure chamber and the first pressure chamber are reverse compression or expansion.

[0033] According to some embodiments of the present application, when the thin part of the first eccentric wheel and the third eccentric wheel rotates to the corresponding first balance wheel and the third balance wheel, the deformation area of the corresponding diaphragm of the first balance wheel and the third balance wheel is in the near-axis position, and the volume of the first pressure chamber and the third pressure chamber is maximum; the second eccentric wheel is opposite to the eccentric position of the first eccentric wheel and the third eccentric wheel, and at the same time, the thin part of the second eccentric wheel rotates to the position of the second balance wheel, and the deformation area of the corresponding diaphragm is in the near-axis position, and the volume of the second pressure chamber is maximum.

[0034] According to some embodiments of the present application, when the thick part of the first eccentric wheel and the third eccentric wheel rotates to the corresponding first balance wheel and the third balance wheel, the deformation area of the corresponding diaphragm of the first balance wheel and the third balance wheel is in the far-axis position, and the volume of the first pressure chamber and the third pressure chamber is minimum; at the same time, the thick part of the second eccentric wheel rotates to the position of the second balance wheel, and the deformation area of the corresponding diaphragm is in the far-axis position, and the volume of the second pressure chamber is minimum.

[0035] According to some embodiments of the present application, the at least one plenum cavity of the four rectangular plenum components sequentially expands or compresses.

[0036] According to some embodiments of the present application, the at least one plenum cavity completes an expansion and compression cycle once per revolution of the drive shaft.

[0037] According to some embodiments of the present application, the pump head further comprises:

[0038] a first end cover arranged at one end of the transmission component;

[0039] a water inlet end arranged on the first end cover;

[0040] a water outlet end arranged on the first end cover.

[0041] According to some embodiments of the present application, the piston chamber further comprises:

[0042] a water inlet cavity connected to the water inlet end;

[0043] a water outlet cavity connected to the water outlet end.

[0044] According to some embodiments of the present application, when the diaphragm expands radially along the drive shaft, the water inlet check valve of the at least one plenum cavity opens, and source water is drawn into the at least one plenum cavity; when compressed radially along the drive shaft, the water outlet check valve of the at least one plenum cavity opens, and the pressurized water is discharged.

[0045] According to another aspect of the present application, a diaphragm plenum pump is also provided, comprising the pump head of the diaphragm plenum pump.

[0046] According to another aspect of the present application, a water treatment device is also provided, comprising the diaphragm plenum pump.

[0047] The pump head of the diaphragm plenum pump provided by the present application completely changes the axial deformation of the diaphragm to radial deformation, and realizes pressurization through the radial deformation of the diaphragm, effectively increases the deformation area of the diaphragm, and improves the flow of the diaphragm plenum pump; on this basis, the structure of the piston chamber and the plenum cavity is further improved, greatly reducing the requirements for the mold, simplifying the manufacturing process, and arranging the water inlet end and the water outlet end at one end of the pump head, thereby making the product structure more compact; in addition, by arranging three eccentric wheels and three balance wheels, the pump head reaches a dynamic balance state of balanced moment, further reducing vibration and noise. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without departing from the scope of the present application.

[0049] Figure 1 is a schematic diagram of a conventional diaphragm booster pump.

[0050] Figure 2 is an exploded view of a conventional diaphragm booster pump.

[0051] Figure 3 is a schematic diagram of a diaphragm booster pump according to an example embodiment of the present application.

[0052] Figure 4 is an exploded view of a diaphragm booster pump according to an example embodiment of the present application.

[0053] Figure 5 is an exploded view of a drive component according to an example embodiment of the present application.

[0054] Figure 6 is a schematic diagram of an eccentric assembly according to an example embodiment of the present application.

[0055] Figure 7 is a schematic diagram of a balance wheel assembly according to an example embodiment of the present application.

[0056] Figure 8 is an exploded view of a booster component according to an example embodiment of the present application.

[0057] Figure 9 is a schematic diagram of a piston chamber according to an example embodiment of the present application.

[0058] Figure 10 is a schematic diagram of a diaphragm according to an example embodiment of the present application.

[0059] Figure 11 is a schematic diagram of an adapter according to an example embodiment of the present application.

[0060] Figure 12 is a schematic diagram of a first end cap according to an example embodiment of the present application.

[0061] Figure 13 is a schematic diagram of a base according to an example embodiment of the present application.

[0062] Figure 14 is a schematic diagram of a pump head of a diaphragm booster pump according to an example embodiment of the present application.

[0063] Figure 15 is an exploded view of a pump head of a diaphragm booster pump according to an example embodiment of the present application.

[0064] Figure 16 is a schematic diagram of a transmission assembly according to an example embodiment of the present application.

[0065] Figure 17 is a schematic diagram of an eccentric assembly according to an example embodiment of the present application.

[0066] Figure 18 is a schematic diagram of a balance wheel assembly according to an example embodiment of the present application.

[0067] Figure 19 is a schematic diagram of a balance wheel according to an example embodiment of the present application.

[0068] Figure 20 is a schematic diagram of a balance wheel according to an example embodiment of the present application.

[0069] Figure 21 is a schematic diagram of a diaphragm according to an example embodiment of the present application.

[0070] Figure 22 is an exploded view of a booster component according to an example embodiment of the present application.

[0071] Figure 23 is a schematic diagram of a slider according to an example embodiment of the present application.

[0072] Figure 24 is a schematic diagram of a slider according to an example embodiment of the present application.

[0073] Figure 25 is a schematic diagram of a diaphragm and slider connection structure according to an example embodiment of the present application.

[0074] Figure 26 is a schematic diagram of a water inlet / outlet structure according to an example embodiment of the present application.

[0075] Figure 27 is a sectional view of a water inlet / outlet structure according to an example embodiment of the present application.

[0076] Figure 28 is a schematic diagram of a first end cap according to an example embodiment of the present application. DETAILED DESCRIPTION

[0077] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings. The example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the several views.

[0078] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

[0079] It should be understood that although the terms first, second, etc. can be used herein to describe various components, these components should not be limited by these terms. These terms are used only to distinguish one component from another. Thus, a first component discussed below could be termed a second component without departing from the teachings of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0080] Those skilled in the art can understand that the drawings are only schematic views of the example embodiments, and can not be drawn to scale. The modules or processes in the drawings are not necessarily essential for implementing the present application, and thus cannot be used to limit the scope of protection of the present application.

[0081] In order to solve the problem of the diaphragm sheet vibration caused by the axial force in the existing booster pump, a booster pump structure using multiple eccentric wheels to simultaneously apply opposite radial forces to the booster cavity is appeared, and the vibration and noise are reduced by the mutual offset of the radial forces. The present inventors find that in the above structure, the structure of the piston chamber and the booster cavity is a pair of fan-shaped blocks, which has high requirements for the mold, the mold opening process is complex, and the manufacturing process is difficult; and the vibration cannot be completely eliminated.

[0082] Therefore, the present application provides a new type of diaphragm booster pump head, which reduces the difficulty of the manufacturing process through structural improvement, makes the product structure more compact, and completely eliminates the vibration through multiple radial forces to reach the dynamic balance state on the basis of product structure improvement. The technical solutions of the present application will be described in detail below with reference to the drawings.

[0083] Figure 3 is a schematic diagram of a diaphragm booster pump according to an example embodiment of the present application; Figure 4 is an exploded view of a diaphragm booster pump according to an example embodiment of the present application.

[0084] As Figure 3 and Figure 4As 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.

[0085] 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 4 It 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.

[0086] 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.

[0087] 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.

[0088] like Figure 5 and Figure 7The balance wheel assembly 130 is connected with the eccentric assembly 120 through a set of bearings 140, and rotation of the eccentric assembly 120 drives the balance wheel assembly 130 to swing along the radial direction of the drive shaft 110. The balance wheel assembly 130 sequentially includes a first balance wheel 131, a second balance wheel 132 and a third balance wheel 133 along the drive shaft 110. The first balance wheel 131 is connected with the first eccentric wheel 121; the second balance wheel 132 is connected with the second eccentric wheel 122; and the third balance wheel 133 is connected with the third eccentric wheel 123. The third balance wheel 133 swings in the same direction as the first balance wheel 131; and the second balance wheel 132 swings in the opposite direction of the first balance wheel 131, i.e., the phase angle difference is 180°. According to the example embodiment of the present 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 phase angle difference between the second balance wheel 132 and the first balance wheel 131 and the third balance wheel 132 is 180° during the swinging of the balance wheel assembly 130, the radial eccentric forces generated by the second balance wheel 132 and the first balance wheel 131 and the third balance wheel 132 cancel each other out and the torque is balanced, thereby further eliminating the vibration.

[0089] The phase angle difference between the eccentric assembly during rotation is 180°, i.e., the phase angle difference is 180°, the eccentric forces generated by the eccentric assembly cancel each other out and the torque is balanced.

[0090] The eccentric assembly includes a first eccentric wheel, a second eccentric wheel and a third eccentric wheel arranged along the drive shaft in sequence; the third eccentric wheel and the first eccentric wheel have the same eccentricity, i.e., the eccentric distance is equal and the eccentric direction is the same; and the second eccentric wheel has the opposite eccentricity to the first eccentric wheel, i.e., the eccentric distance is equal and the eccentric direction is opposite.

[0091] During the swinging of the balance wheel assembly, the resultant force of the radial eccentric forces along the drive shaft is zero and the resultant torque is balanced.

[0092] The balance wheel assembly includes:

[0093] a first balance wheel connected with the first eccentric wheel;

[0094] a second balance wheel connected with the second eccentric wheel;

[0095] a third balance wheel connected with the third eccentric wheel;

[0096] The third balance wheel swings in the same direction as the first balance wheel; and the second balance wheel swings in the opposite direction of the first balance wheel, i.e., the second balance wheel swings in the same direction as the first balance wheel, and the phase angle difference is 180°.

[0097] As Figure 7As shown, a set of swing arms 134 are fixedly arranged on the first balance wheel 131, the second balance wheel 132 and the third balance wheel 133 respectively. During the swing process, the swing arms 134 are connected with the diaphragm through the adapter in the booster component, and drive the diaphragm to deform in the radial direction, so as to expand or compress.

[0098] Figure 8 is an exploded view of the booster component according to the example embodiment of the present application; Figure 9 is a schematic view of the piston chamber according to the example embodiment of the present application; Figure 10 is a schematic view of the diaphragm according to the example embodiment of the present application; Figure 11 is a schematic view of the adapter according to the example embodiment of the present application.

[0099] As shown, Figure 8 each booster component 300 includes a piston chamber 310, a diaphragm 320, an adapter 330, a sealing ring 340, a shell 350, a set of water inlet one-way valves 360 and a set of water outlet one-way valves 370. The inner wall of the piston chamber 310 is provided with at least one booster cavity. The diaphragm 320 is closed with the piston chamber 310 to form the at least one booster cavity. The shell 350 and the sealing ring 340 are used to accommodate the piston chamber 310 and seal. The diaphragm 320 is connected with the balance wheel assembly through the adapter 330. The swing of the balance wheel assembly drives the diaphragm 320 to deform in the radial direction of the driving shaft through the adapter 330, so that the at least one booster cavity is expanded or compressed in the radial direction. The piston chamber 310 and the diaphragm 320 can be integral or assembled.

[0100] As shown, Figure 9 the piston chamber 310 is provided with a water inlet cavity 311, a water outlet cavity 312 and at least one booster cavity, which are closed by the diaphragm tightly adhering to the inner wall of the piston chamber 310. According to the example embodiment of the present application, the at least one booster cavity includes a first booster cavity 313, a second booster cavity 314 and a third booster cavity 315. The first booster cavity 313 and the third booster cavity 315 are small booster cavities, and the second booster cavity 314 is a large booster cavity. The water inlet cavity 311 and the water outlet cavity 312 are arranged at one end of the piston chamber 310. The water inlet 316 and the water outlet 317 are arranged in each booster cavity, and the water inlet one-way valve 360 and the water outlet one-way valve 370 are arranged respectively.

[0101] As shown, Figure 10 the diaphragm 320 includes a first deformation area 323, a second deformation area 324 and a third deformation area 325, which correspond to the first booster cavity 313, the second booster cavity 314 and the third booster cavity 315 in Figure 9 respectively. A set of protrusions 326 are arranged on each deformation area of the diaphragm 320. The protrusions 326 are connected with the swing arms of the balance wheel through the adapter. Thus, Figure 9 the first booster cavity 313 inFigure 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.

[0102] like Figure 8 and Figure 11 As 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.

[0103] 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.

[0104] 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.

[0105] like Figure 12As 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 9 The 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.

[0106] 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.

[0107] 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.

[0108] For example, Figure 6The first eccentric wheel 121 and the third eccentric wheel 123 are rotated to the thin part Figure 4 When the first balance wheel 131 and the third balance wheel 133 are rotated, the deformation area of the diaphragm 320 corresponding to the first balance wheel 131 and the third balance wheel 133 is located at the position close to the axis, and the volume of the first plenum and the third plenum is maximum. The second eccentric wheel 122 is opposite to the eccentric position of the first eccentric wheel 121 and the third eccentric wheel 123, and the thin part of the second eccentric wheel 122 is rotated to the position of the second balance wheel 132, and the deformation area of the diaphragm 320 corresponding to the second balance wheel 132 is located at the position close to the axis, and the volume of the second plenum is maximum.

[0109] Similarly, when the first eccentric wheel 121 and the third eccentric wheel 123 are rotated to the thick part, the deformation area of the diaphragm 320 corresponding to the first balance wheel 131 and the third balance wheel 133 is located at the position far from the axis, and the volume of the first plenum and the third plenum is minimum. The thick part of the second eccentric wheel 122 is rotated to the position of the second balance wheel 132, and the deformation area of the diaphragm 320 corresponding to the second balance wheel 132 is located at the position far from the axis, and the volume of the second plenum is minimum.

[0110] When the diaphragm 320 is expanded along the radial direction of the drive shaft 110, the water inlet one-way valve of the at least one plenum is opened, and the source water is sucked into the at least one plenum; when the diaphragm 320 is compressed along the radial direction of the drive shaft 110, the water outlet one-way valve of the at least one plenum is opened, and the water in the at least one plenum is discharged.

[0111] According to another aspect of the present application, a diaphragm plenum pump is provided, which comprises the pump head of the diaphragm plenum pump.

[0112] According to another aspect of the present application, a water treatment device is provided, which comprises the diaphragm plenum pump.

[0113] The pump head of the diaphragm booster pump provided in the application is rotated by the eccentric assembly to drive the balance wheel to produce radial reciprocating motion, so that the deformation direction of the diaphragm is radial. Compared with the traditional diaphragm booster pump, the radial deformation of the diaphragm can effectively increase the deformation area of the diaphragm, increase the volume variable of the booster cavity, and thus improve the flow of the diaphragm booster pump under the condition that the pump body volume and the motor speed remain unchanged. Secondly, the structure of the pump head of the diaphragm booster pump provided in the application is further improved for the piston chamber and the booster cavity, which greatly reduces the requirements for the mold and simplifies the manufacturing process. Furthermore, the eccentric forces of the eccentric assembly cancel each other out and the torque is balanced during the rotation process, the first balance wheel, the third balance wheel and the second balance wheel simultaneously deviate from or approach the axis of the motor shaft, the forces in the radial direction cancel each other out, the resultant force is zero and the resultant torque is balanced, the vibration and noise are greatly reduced, and the relatively silent effect can be achieved. In the pump head of the diaphragm booster pump provided in the application, the water inlet end and the water outlet end are improved from being arranged at both ends of the pump to being arranged at one end of the pump, so that the product structure is more compact.

[0114] In another embodiment of the application, some changes are made in the details compared with embodiment 1, the drive unit of the pump head comprises the eccentric assembly, the drive assembly, a bearing and a slider semi-fixed on the balance wheel assembly.

[0115] A guide rail is arranged on the balance wheel, a sliding groove is arranged on the slider, and the guide rail and the sliding groove are in clearance fit, so that the slider and the balance wheel relatively slide along the guide rail.

[0116] The diaphragm is provided with a plurality of diaphragm reverse buckle groups, and the diaphragm reverse buckle is connected with the slider reverse buckle groove.

[0117] The slider comprises a first slider, a second slider and a third slider, the first slider reverse buckle is connected with the first diaphragm reverse buckle group, the first slider sliding groove is connected with the first balance wheel sliding rail, the second slider reverse buckle is connected with the second diaphragm reverse buckle group, the second slider sliding groove is connected with the second balance wheel sliding rail, and the third slider reverse buckle is connected with the third diaphragm reverse buckle group.

[0118] The diaphragm reverse buckle group is matched with the slider reverse buckle groove, and the fixed groove on the diaphragm is matched with the fixed pin on the slider, so as to increase the relative motion force between the diaphragm and the slider.

[0119] Two booster cavity groups arranged symmetrically with the center point of the piston chamber as the center form a pair, i.e. the booster cavities are arranged in pairs, and the center lines of the two booster cavity groups are on the same diameter line of the piston chamber.

[0120] At least 2 pairs, preferably 3 pairs or 6 pairs of booster cavity groups are expanded or compressed.

[0121] The booster cavity group comprises a first small booster cavity corresponding to the first balance wheel, a large booster cavity corresponding to the second balance wheel, and a second small booster cavity corresponding to the third balance wheel. The first small booster cavity and the second small booster cavity expand or compress synchronously; when the first small booster cavity and the second small booster cavity expand, the large booster cavity compresses; when the first small booster cavity and the second small booster cavity compress, the large booster cavity expands. In particular, the sum of the compression volumes of the first small booster cavity and the second small booster cavity is equal to the expansion volume of the large booster cavity, and vice versa, the sum of the expansion volumes of the first small booster cavity and the second small booster cavity is equal to the compression volume of the large booster cavity.

[0122] The diaphragm piece and the slider contact part are a diaphragm deformation zone, and the diaphragm deformation zone deforms.

[0123] The balance wheel of the transmission assembly makes eccentric rotation, drives the radial reciprocating motion of the slider, the slider slides relative to the balance wheel, the slider drives the diaphragm piece to deform radially, and the booster cavity expands or compresses radially.

[0124] The motor shaft rotates one circle, and each booster cavity of the booster cavity group completes an expansion and compression cycle.

[0125] The first balance wheel, the third balance wheel and the second balance wheel simultaneously move away from or close to the axis of the motor shaft, and the radial forces cancel each other out, with a resultant force of zero.

[0126] When the thin part of the first eccentric wheel and the third eccentric wheel rotates to the position of the balance wheel linked therewith, the balance wheel pushes the corresponding diaphragm deformation zone to the position close to the center point of the piston chamber, and the volume of the small booster cavity corresponding to the small balance wheel is maximum. The second eccentric wheel is opposite to the first eccentric wheel and the second eccentric wheel in eccentric position, and when the thin part of the second eccentric wheel rotates to the position of the second balance wheel linked therewith, the corresponding diaphragm deformation zone is close to the center point of the piston chamber, and the volume of the booster cavity is maximum.

[0127] When the thick part of the first eccentric wheel and the third eccentric wheel rotates to the position of the first balance wheel and the second balance wheel linked therewith, the corresponding diaphragm deformation zone of the balance wheel is away from the center point of the piston chamber, and the volume of the booster cavity is minimum. At the same time, when the thick part of the second eccentric wheel rotates to the position of the second balance wheel linked therewith, the corresponding diaphragm deformation zone is away from the center point of the piston chamber, and the volume of the booster cavity is minimum.

[0128] The diaphragm piece comprises at least one diaphragm piece or a plurality of diaphragm piece assemblies, and the plurality of diaphragm piece assemblies are spliced to form the diaphragm piece.

[0129] When the diaphragm moves to the expansion direction, the water inlet one-way valve opens, the water outlet one-way valve closes, and the source water is sucked into the pressure chamber; when the diaphragm moves to the compression direction, the water inlet one-way valve closes, the water outlet one-way valve opens, and the pressurized water is discharged.

[0130] The piston chamber comprises at least one piston chamber assembly, and multiple piston chamber assemblies are spliced to form the piston chamber.

[0131] The diaphragm or the piston chamber is integral or assembled.

[0132] The diaphragm is tightly attached to the inner wall of the piston chamber to form a water outlet cavity, the pressure chamber and the water inlet cavity.

[0133] The diaphragm reverse buckle group cooperates with the slider reverse buckle groove to relatively fix the diaphragm and the slider, the fixed groove on the diaphragm cooperates with the fixed pin on the slider to increase the relative movement force between the diaphragm and the slider, so that the diaphragm and the slider are not easy to rub each other.

[0134] The guide rail on the balance wheel cooperates with the sliding groove on the slider to enable the slider and the balance wheel to relatively slide along the guide rail direction.

[0135] The rotation of the eccentric assembly drives the balance wheel to produce eccentric motion, the balance wheel and the slider relatively slide, so that the eccentric motion of the balance wheel is converted into radial linear reciprocating motion, and then the deformation direction of the diaphragm is radial. Compared with the traditional diaphragm booster pump, the pump head volume is maximized, the maximum diaphragm movement area is obtained under the condition that the pump body volume is unchanged, the volume variable of the working chamber is increased under the condition that the diaphragm reciprocating motion amplitude is the same, and the flow of the diaphragm booster pump is improved.

[0136] During the rotation of the eccentric assembly, the eccentric forces offset each other and the torque is balanced, the first balance wheel, the third balance wheel and the second balance wheel simultaneously move away from or close to the axis of the motor shaft, the radial forces offset each other, the resultant force is zero and the resultant torque is balanced, the vibration is greatly reduced and the noise is reduced, and the relatively silent effect can be achieved.

[0137] The buffer cavity is arranged in the pressure chamber and is part of the space in the pressure chamber. The space increases as the pressure increases and decreases as the pressure decreases. When the diaphragm moves upward, the pressure chamber decreases, the pressure in the pressure chamber increases, and the volume of the buffer cavity increases due to the increase in pressure, thereby delaying the increase in pressure in the pressure chamber.

[0138] Multiple buffer cavities are uniformly arranged on the diaphragm. When the pressure of the working chamber instantaneously increases, the volume of the buffer cavity increases, the trend of the pressure increase of the working chamber is slowed down, when the pressure of the working chamber instantaneously decreases, the volume of the buffer cavity decreases, the trend of the pressure decrease of the working chamber is slowed down, the pressure of the working chamber is more stable during the working process, and then the water outlet pressure pulsation is reduced, and the influence of the water outlet pressure pulsation on the system pipeline is reduced.

[0139] The slider slides on the balance wheel, eliminates tangential motion caused by eccentric motion of the balance wheel, makes the diaphragm realize linear reciprocating motion along the radial direction, improves the diaphragm life, reduces friction loss, and improves the water pump efficiency.

[0140] 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 with the diaphragm through the slider, the slider and the balance wheel can slide with each other, the eccentric motion of the transmission assembly makes the slider reciprocate along the diameter direction of the rotating shaft, and the slider drives the deformation area of the diaphragm to expand or compress in the radial direction. The eccentric forces of the eccentric assembly are counteracted and the moments are balanced during rotation, the resultant force of the eccentric forces generated by the eccentric motion of the transmission assembly is zero and the resultant moment is balanced, so that the booster cavity expands or compresses in the radial direction. When the deformation area of the diaphragm moves in the expansion direction, the water inlet one-way valve is opened, and the source water is sucked into the booster cavity through the water inlet from the water inlet; when the deformation area of the diaphragm moves in the compression direction, the water outlet one-way valve is opened, and the pressurized water is pressed out, enters the water outlet chamber from the water outlet, and is discharged from the water outlet chamber.

[0141] Specifically, another embodiment of the present application, Figure 14 is a schematic diagram of the diaphragm booster pump of the present embodiment, Figure 15 is an exploded view of the diaphragm booster pump according to the present embodiment.

[0142] As Figure 14 shown, the diaphragm booster pump head 1000 of the pump embodiment includes a transmission component 100, a base body 200, four rectangular booster components 300, and a first end cover 400. Among them, the base body 200 is the structural body of the pump head 1000, the transmission component 100 is arranged inside the base body 200, and the four rectangular booster components 300 are arranged around the base body 200; the first end cover 400 is arranged at one end of the base body 200.

[0143] Compared with the embodiments in Figure 3 and Figure 4 , the diaphragm booster pump head 1000 provided by the present embodiment has another implementation of the eccentric wheel assembly 120, the balance wheel assembly 130, the diaphragm 320 and the adapter 330.

[0144] As Figure 16 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 cover 150. Compared with Figure 6 , the eccentric assembly 120 in the present embodiment is three independent eccentric wheels. As Figure 17As shown, the eccentric assembly 120 includes a first eccentric 121, a second eccentric 122, and a third eccentric 123.

[0145] As shown, the first eccentric 121 includes a sliding rail 1211 and a sliding surface 1212. 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.

[0146] As shown, the first balance wheel 131 includes a sliding rail 1311 and a sliding surface 1312. The third balance wheel 133 has the same structure as the first balance wheel 131. Figure 19 As shown, the second balance wheel 132 includes a sliding rail 1321 and a sliding surface 1322.

[0147] Figure 20 As shown, the diaphragm 320 includes a water inlet hole 321, a water outlet hole 322, a first deformation area 323, a second deformation area 324, a third deformation area 325, a buffer cavity 327, a first undercut group 3291, a second undercut group 3292, a third undercut group 3293, a first limiting groove 3281, a second limiting groove 3282, and a third limiting groove 3283.

[0148] As shown, the slider 330 includes a first slider 331, a second slider 332, and a third slider 333. Figure 21 As shown, the first slider 331 includes a limiting pin 3311, an undercut 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] As shown, the second slider 332 includes a limiting pin 3321, an undercut groove 3322, a sliding groove 3323, and a sliding surface 3324. Figure 22 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] Figure 23 As shown, the second slider 332 includes a limiting pin 3321, an undercut groove 3322, a sliding groove 3323, and a sliding surface 3324.

[0151] As shown, the second slider 332 includes a limiting pin 3321, an undercut groove 3322, a sliding groove 3323, and a sliding surface 3324. 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.

[0152] Figure 25 ​​As shown, the first undercut group 3291 on the diaphragm sheet 320 is buckled with the undercut groove 3312 on the first slider 331, so that the diaphragm sheet 320 and the first slider 331 are fixed to each other. The first fixed groove 3291 on the diaphragm sheet 320 is interference-fitted with the limiting pin 3311 on the first slider 331, so as to increase the binding force between the diaphragm sheet 320 and the first slider 331. Similarly, the second undercut group 3292 on the diaphragm sheet 320 is buckled with the undercut groove 3322 on the second slider 332, and the second fixed groove 3292 on the diaphragm sheet 320 is interference-fitted with the limiting pin 3321 on the second slider 332; the third undercut group 3293 on the diaphragm sheet 320 is buckled with the undercut groove 3332 on the third slider 333, and the third fixed groove 3293 on the diaphragm sheet 320 is interference-fitted with the limiting pin 3331 on the second slider 333.

[0153] As shown in FIG. 1, the first slider 331 is connected to the first balance wheel 131, the second slider 332 is connected to the second balance wheel 132, and the third slider 333 is connected to the third balance wheel 133. Figure 25 As shown in FIG. 1, the sliding groove 3313 on the first slider 331 is clearance-fitted with the sliding rail 1311 on the first balance wheel 131, and the sliding surface 3314 on the first slider 331 is in contact with the sliding surface 1312 on the first balance wheel 131, so that the first slider 331 and the first balance wheel 131 can move relative to each other along the sliding rail 1311. Similarly, the second slider 332 and the third slider 333 are connected to the second balance wheel 132 and the third balance wheel 133, respectively, in the same way.

[0154] As shown in FIG. 1, the sliding groove 3313 on the first slider 331 is clearance-fitted with the sliding rail 1311 on the first balance wheel 131, and the sliding surface 3314 on the first slider 331 is in contact with the sliding surface 1312 on the first balance wheel 131, so that the first slider 331 and the first balance wheel 131 can move relative to each other along the sliding rail 1311. Similarly, the second slider 332 and the third slider 333 are connected to the second balance wheel 132 and the third balance wheel 133, respectively, in the same way. Figure 14 As shown in FIG. 1, the sliding groove 3313 on the first slider 331 is clearance-fitted with the sliding rail 1311 on the first balance wheel 131, and the sliding surface 3314 on the first slider 331 is in contact with the sliding surface 1312 on the first balance wheel 131, so that the first slider 331 and the first balance wheel 131 can move relative to each other along the sliding rail 1311. Similarly, the second slider 332 and the third slider 333 are connected to the second balance wheel 132 and the third balance wheel 133, respectively, in the same way.

[0155] As shown in FIG. 1, the sliding groove 3313 on the first slider 331 is clearance-fitted with the sliding rail 1311 on the first balance wheel 131, and the sliding surface 3314 on the first slider 331 is in contact with the sliding surface 1312 on the first balance wheel 131, so that the first slider 331 and the first balance wheel 131 can move relative to each other along the sliding rail 1311. Similarly, the second slider 332 and the third slider 333 are connected to the second balance wheel 132 and the third balance wheel 133, respectively, in the same way. 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.

[0156] 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.

[0157] The working principle of the buffer cavity 327 is as follows: Figure 27As shown, the buffer cavity 327 is arranged in the working cavity 314, and is a part of the space in the working cavity 314, the volume of which increases as the pressure in the working cavity 314 increases, and decreases as the pressure in the working cavity 314 decreases. When the diaphragm 320 moves upward from the lowest point, the volume of the working cavity 314 decreases, the pressure in the working cavity 314 instantaneously increases, the volume of the buffer cavity 327 increases due to the increase of the pressure, and absorbs part of the pressure energy, thereby reducing the peak pressure in the working cavity 314. When the diaphragm 320 moves downward from the highest point, the volume of the working cavity 314 increases, the pressure in the working cavity 314 instantaneously decreases, the volume of the buffer cavity 327 decreases due to the decrease of the pressure, and releases the stored pressure energy, thereby increasing the valley pressure in the working cavity 314, and reducing the pressure change amplitude in the working cavity 314.

[0158] The above describes the embodiments of the present application in detail. The principles and implementation manners of the present application are described by applying specific examples, and the above description of the embodiments is only used to help understand the technical solutions of the present application and the core ideas thereof. Therefore, the changes or deformations made by the person skilled in the art according to the ideas of the present application, based on the specific implementation manners and application scope of the present application, all belong to the protection scope of the present application. In summary, the content of the present description should not be understood as a limitation of the present application.

Claims

1. A transmission assembly for a diaphragm booster pump, comprising a booster chamber and a diaphragm, characterized in that, The transmission assembly includes: an eccentric assembly and a balance wheel assembly; The balance wheel of the balance wheel assembly is provided with a slider; The slider slides relative to the balance wheel, and the slider causes the diaphragm to undergo radial deformation, thereby causing the pressurization chamber to expand or compress radially along the drive shaft direction of the transmission assembly. 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. During the rotation of the eccentric assembly, the second eccentric wheel is 180° out of phase with the first eccentric wheel and the third eccentric wheel; the eccentric forces generated by the eccentric assembly during rotation cancel each other out and the torques are balanced. 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 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. The pressurization chamber 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.

2. The transmission assembly of the diaphragm booster pump according to claim 1, characterized in that, At least one of the pressurization chambers 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 balance wheel to deform the diaphragm, thereby performing radial expansion or compression.

3. The transmission assembly of the diaphragm booster pump according to claim 2, 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.

4. The transmission assembly of the diaphragm booster pump according to claim 3, 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.

5. The transmission assembly of the diaphragm booster pump according to claim 3, 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.

6. The transmission assembly of the diaphragm booster pump according to claim 1, characterized in that, The pressurizing chamber of the pressurizing component undergoes expansion or compression movements in sequence.

7. The transmission assembly of the diaphragm booster pump according to claim 1, characterized in that, For each rotation of the drive shaft, the pressurization chamber completes one expansion and compression cycle.

8. The transmission assembly of the diaphragm booster pump according to claim 1, characterized in that, 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.

9. The transmission assembly of the diaphragm booster pump according to claim 1, characterized in that, 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.

10. The transmission assembly of the diaphragm booster pump according to claim 9, characterized in that, 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.

11. The transmission assembly of the diaphragm booster pump according to claim 9, characterized in that, 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.

12. A pump head for a diaphragm booster pump, characterized in that, include: The drive assembly of the diaphragm booster pump according to any one of claims 1-11.

13. A diaphragm booster pump, characterized in that, include: The diaphragm booster pump head according to claim 12.

Images