CN218325211U - Diaphragm pump with alternative waterway structure - Google Patents

Abstract

The utility model discloses a diaphragm pump with alternative waterway structure, including the pump head body, eccentric subassembly, the gyromagnetic subassembly, be equipped with the pressure boost chamber in the pump head body, first intake antrum, first play water cavity respectively with first water inlet, first delivery port switch-on, pressure boost chamber and first intake antrum, first play water cavity switch-on, gyromagnetic subassembly drive eccentric subassembly changes pressure boost chamber volume, still include two-way driving motor, cross the water structure and be equipped with the second intake antrum, the second goes out the water cavity, the second intake antrum, the second goes out the water cavity respectively with the second water inlet, the second delivery port communicates, the water route that the second intake antrum and the second go out the water cavity switch-on constitutes has the water seal subassembly that seals water convex ring and control water seal convex ring department water route is sealed or switches on, two-way driving motor two output control gyromagnetic subassembly, the action is in turn sealed. The utility model discloses the switch-on in steerable two water routes is perhaps sealed, and whole drinking water system's pipeline is simple, and manufacturing cost is lower.

Description

Diaphragm pump with alternative waterway structure

Technical Field

The utility model relates to a fluid transport technical field, concretely relates to diaphragm pump with alternative waterway structure.

Background

A related diaphragm pump is disclosed in, for example, japanese patent laid-open No.2013-36350 (document 1). The diaphragm pump disclosed in document 1 is integrated with a motor, and includes a pump mechanism including a diaphragm, a drive mechanism that converts rotation of the motor into reciprocating motion and drives the pump mechanism, and the like. The diaphragm includes a cup-shaped deformation portion, and an opening portion of the deformation portion is formed between the deformation portion and the pump body by the pump body closing the pump chamber. The pump mechanism comprises an inlet valve and an outlet valve and employs the following arrangement: in this arrangement, when the capacity of the pump chamber increases, the fluid is drawn into the pump chamber, and when the capacity of the pump chamber decreases, the fluid in the pump chamber is discharged. The drive mechanism includes a reciprocating portion attached to a deforming portion of the diaphragm, and an input portion that rotates integrally with a rotating shaft of the motor, and the following arrangement is applied: in this arrangement, the rotation of the input portion is converted into the reciprocating motion, and the reciprocating portion is reciprocally moved. The above patent is also the design of the common existing diaphragm pump, and the principle is that the motor drives the eccentric mechanism to do eccentric motion, thereby forming extrusion or dragging to the pressurization cavity of the diaphragm pump, and then sucking or discharging water.

At present a diaphragm pump all is only one business turn over water route, can only control the rivers on a water route, but in drinking water system, sometimes need control two waterway structure's rivers, just so need increase pipeline and relevant control flap quantity to cause whole drinking water system's pipeline more complicated, manufacturing cost is corresponding increase also, consequently, needs a diaphragm pump of two steerable water routes urgently.

Disclosure of Invention

An object of the utility model is to provide a diaphragm pump with water route structure in turn for solve the problem in the background art.

In order to solve the technical problem, the utility model discloses a following scheme:

a diaphragm pump with an alternative waterway structure comprises a pump body, an eccentric assembly and a gyromagnetic assembly, wherein a pressurizing cavity, a first water inlet cavity and a first water outlet cavity are arranged in the pump body, the first water inlet cavity and the first water outlet cavity are respectively communicated with a first water inlet and a first water outlet, the pressurizing cavity is respectively communicated with the first water inlet cavity and the first water outlet cavity through a one-way water flow inlet and outlet structure, the gyromagnetic assembly drives the eccentric assembly to change the volume of the pressurizing cavity to suck or pump source water, the diaphragm pump further comprises a two-way driving motor and a water passing structure, a second water inlet cavity and a second water outlet cavity are arranged in the water passing structure, the second water inlet cavity and the second water outlet cavity are respectively communicated with a second water inlet and a second water outlet, a waterway where the second water inlet cavity and the second water outlet cavity are communicated forms a water sealing convex ring and a water sealing assembly for controlling the waterway sealing or the communication of the water sealing convex ring, and two output ends of the two-way driving motor control the gyromagnetic assembly and the water sealing assembly to alternatively move.

Optionally, the gyromagnetic component comprises a support, a driving magnetic ring, a driven magnetic ring and a rotating shaft, the middle of the support is downwards concave to form a continuous first-stage cavity and a continuous second-stage cavity, an eccentric seat is arranged in the first-stage cavity, a bearing is arranged in the second-stage cavity, the eccentric seat is connected with the rotating shaft, the rotating shaft is connected with an inner ring of the bearing, the eccentric component is eccentrically connected with the eccentric seat, the driven magnetic ring is sleeved on the eccentric seat, a rotating seat is arranged below the support, the driving magnetic ring is sleeved on the rotating seat, the output end of the bidirectional driving motor is connected with a first screw rod, the first screw rod is in threaded connection with the rotating seat, the bidirectional driving motor rotates to drive the driving magnetic ring to be close to or far away from the driven magnetic ring and control the driven magnetic ring to rotate or to be static, and positioning points are arranged at the upper end and the lower end of the first screw rod.

Optionally, the upper end and the lower end of the support are respectively provided with a middle plate and a base, the upper end of the middle plate is connected with the pump head body, the lower end of the base is connected with the bidirectional driving motor, the rotating seat is placed in the inner cavity of the base, a first nut is embedded in the middle of the rotating seat, and a threaded hole matched with the first screw rod is formed in the middle of the first nut in a penetrating mode.

Optionally, the water passing structure comprises a valve seat and a bottom cover connected with the lower end of the bidirectional driving motor, the water sealing assembly is located in an inner cavity of the valve seat, and the bottom cover is connected with the lower end of the valve seat in a sealing mode to form a second water inlet cavity.

Optionally, the water sealing assembly comprises a first spring, a second spring, a sealing head and a first control rod, a water groove is formed in the side wall of the first control rod, a sliding body which is connected with the inner cavity of the valve seat in a sliding mode is arranged at the upper end of the first control rod, a threaded hole is formed in the middle of the sliding body, the lower output end of the bidirectional driving motor is connected with a second screw rod matched with the threaded hole, the upper half section of the second screw rod is a smooth surface, the lower half section of the second screw rod is a thread, one end of the first spring acts on the bidirectional driving motor, the other end of the first spring acts on the sliding body, one end of the second spring acts on the sealing head, the other end of the second spring acts on the bottom cover, and the bidirectional driving motor rotates to drive the sliding body to move up and down and form a sealed water sealing convex ring or a water sealing assembly which controls the water sealing convex ring to be switched on under the combined action of the first spring and the second spring.

Optionally, the sliding body includes interconnect's slider, control lever seat, and the slider middle part embedding has the second nut, and the second nut middle part is run through and is equipped with the screw hole that matches with the second screw rod, is equipped with the setpoint on the lower extreme screw thread of second screw rod, and control lever seat middle part is equipped with the low groove, and circumference cover has first sealing washer, is equipped with the guide way on the disk seat lateral wall, and the slider lateral wall is equipped with the lug with the guide way adaptation.

Optionally, a partition plate and a water pumping diaphragm are compressed between the pump head body and the middle plate, the left end of the water pumping diaphragm is recessed downwards to form an extension section and form a pressurizing cavity, and the partition plate is provided with a water inlet hole and a water outlet hole communicated with the pressurizing cavity.

Optionally, a negative pressure valve seat is arranged on the pump head body, a valve cover is arranged at the top of the negative pressure valve seat, a vacuum cavity and a third water inlet cavity communicated with the first water inlet are arranged in the negative pressure valve seat, the vacuum cavity is communicated with the first water inlet cavity through a water inlet flow channel, and a water sealing sleeve ring and a flow control assembly for controlling the water sealing or the conduction of the water channel at the water sealing sleeve ring are formed on a water channel communicated with the third water inlet cavity and the vacuum cavity.

Optionally, the flow control assembly includes a second control rod, a third spring, and an inductive diaphragm, the periphery of the inductive diaphragm is hermetically fixed between the negative pressure valve seat and the valve cover, the inductive diaphragm and the valve cover form an atmospheric cavity, and the valve cover is provided with an atmospheric hole; a flow limiting groove is formed in the side wall of the second control rod, one end of the second control rod is connected with a pressing plate, the upper end of the pressing plate is fixedly connected with the sensing diaphragm, and the other end of the pressing plate is used for sealing the water sealing lantern ring through the lower end of the second control rod; one end of a third spring acts on the pressing plate, the other end of the third spring acts on the inner wall of the negative pressure valve seat, and the second control rod forms a sealed water sealing sleeve ring or a flow control assembly for controlling the conduction of the water sealing sleeve ring under the combined action of air pressure in the atmosphere cavity, pressure in the vacuum cavity and the third spring.

Optionally, the periphery of the lower end of the second control rod is connected with the water sealing port in a sealing manner through a second sealing ring, and the second sealing ring is arranged in a groove in the side wall of the upper end of the third water inlet cavity.

The utility model discloses beneficial effect who has:

1. the utility model discloses in, on the basis of current gyromagnetic diaphragm pump, through replacing original one-way driving motor for two-way driving motor, the output shaft of two-way driving motor top drives the gyromagnetic component rotation, and then it is eccentric motion to drive eccentric subassembly, eccentric rotation of eccentric subassembly changes the volume in pressure boost chamber, thereby inhale the source water and pump out, be equipped with the water structure on the output shaft of two-way driving motor below, it is used for controlling the water route switch-on or the water sealing component who blocks between second water inlet and the second delivery port to cross to be equipped with in the water structure, two-way driving motor motion control gyromagnetic component, the alternative action of water sealing component, and then realize the switch-on or the closure of two steerable water routes of this diaphragm pump, when it uses in the drinking water system, just can control the hot water route respectively, normal atmospheric temperature water route, or control pressure source water route respectively, non-pressure source water route, need not to increase other pipeline and supporting control flap in the drinking water system, whole drinking water system's pipeline can not complicate, the manufacturing cost can not corresponding increase yet.

Drawings

FIG. 1 is a schematic diagram of a diaphragm pump;

FIG. 2 is a schematic diagram of a diaphragm pump with a negative pressure valve seat;

fig. 3 is a schematic view of the vertical cross-section structure of fig. 2.

Reference numerals: 01-a first water inlet, 02-a first water inlet cavity, 03-a first water outlet cavity, 04-a clapboard, 05-a first water outlet, 06-a water outlet, 07-a water pumping diaphragm, 08-a pushing frame, 09-a driven magnetic ring, 10-a driving magnetic ring, 11-a rotating seat, 12-a second nut, 13-a smooth surface, 14-a guide groove, 15-a second screw, 16-a second water outlet, 17-a control rod seat, 18-a first control rod, 19-a second water inlet cavity, 20-a second spring, 21-a bottom cover, 22-a sealing head, 23-a water sealing convex ring, 24-a second water outlet cavity, 25-a second water inlet, 26-a valve seat, 27-a first sealing ring, 28-a sliding block and 29-a first spring, 30-a bidirectional driving motor, 31-a first screw rod, 32-a first nut, 33-a water outlet one-way diaphragm, 34-a pressurizing cavity, 35-a water inlet one-way diaphragm, 36-a third sealing ring, 37-a pump head body, 38-a lower groove, 39-a negative pressure valve seat, 40-a vacuum cavity, 41-a valve cover, 42-a third spring, 43-an atmospheric hole, 44-an inductive diaphragm, 45-a second control rod, 46-a second sealing ring, 47-a third water inlet cavity, 48-a bump, 49-a water inlet flow channel, 50-a flow limiting channel, 51-a pressing plate, 52-a water sealing ring, 53-an eccentric seat, 54-an eccentric rod, 55-a rotating shaft, 56-an extending section, 57-a bearing, 58-a water inlet hole and 59-a middle plate, 60-bracket, 61-base, 62-water trough.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Example 1

A diaphragm pump with an alternative waterway structure comprises a pump head body 37, an eccentric assembly and a gyromagnetic assembly, wherein a pressurizing cavity 34, a first water inlet cavity 02 and a first water outlet cavity 03 are arranged in the pump head body 37, the first water inlet cavity 02 and the first water outlet cavity 03 are respectively communicated with a first water inlet 01 and a first water outlet 05, the pressurizing cavity 34 is respectively communicated with the first water inlet cavity 02 and the first water outlet cavity 03 through a one-way water inlet and outlet structure, the gyromagnetic assembly drives the eccentric assembly to change the volume of the pressurizing cavity 34 to suck or pump source water, the diaphragm pump further comprises a two-way driving motor 30 and a water passing structure, a second water inlet cavity 19 and a second water outlet cavity 24 are arranged in the water passing structure, the second water inlet cavity 19 and the second water outlet cavity 24 are respectively communicated with a second water inlet 25 and a second water outlet 16, a waterway convex ring 23 and a water sealing assembly for controlling the sealing or conducting of the waterway convex ring 23 are formed by communicating the second water inlet cavity 19 and the second water outlet cavity 24, and the two output ends of the two-way driving motor 30 control the gyromagnetic assembly and the alternative action of the water sealing assembly.

In this embodiment, as shown in fig. 1-3, on the basis of the existing gyromagnetic diaphragm pump, an original unidirectional driving motor is replaced by a bidirectional driving motor 30, an output shaft above the bidirectional driving motor 30 drives a gyromagnetic component to rotate, and further drives the eccentric component to do eccentric motion, both the eccentric component and the gyromagnetic component are the prior art, the eccentric rotation of the eccentric component changes the volume of a pressurizing cavity, so that source water is sucked and pumped out, a water passing structure is arranged on the output shaft below the bidirectional driving motor 30, a water sealing component for controlling the connection or the blocking of a water path between a second water inlet 25 and a second water outlet 16 is arranged in the water passing structure, the bidirectional driving motor 30 controls the gyromagnetic component and the water sealing component to alternately act, so that the single diaphragm pump can control the connection or the blocking of two water paths, when the diaphragm pump is applied to a drinking water system, a first water inlet 01 and a second water inlet 25 can be connected to the same water path or different water paths are respectively connected, as shown in the first water inlet 01 can be connected to a normal-pressure water source, a second water inlet 25 can be connected to a normal-pressure water source or a normal-pressure water source, and a normal-pressure water source control pipeline can be added to the drinking water system without being complicated, and the normal-pressure water-temperature-controlled water system.

Example 2

Further, the gyromagnetic assembly comprises a support 60, a driving magnetic ring 10, a driven magnetic ring 09 and a rotating shaft 55, the middle of the support 60 is downwards concave to form a continuous first-stage cavity and a continuous second-stage cavity, an eccentric seat 53 is arranged in the first-stage cavity, a bearing 57 is arranged in the second-stage cavity, the eccentric seat 53 is connected with the rotating shaft 55, the rotating shaft 55 is connected with an inner ring of the bearing 57, the eccentric assembly is eccentrically connected with the eccentric seat 53, the driven magnetic ring 09 is connected onto the eccentric seat 53 in a sleeved mode, a rotating seat 11 is arranged below the support 60, the driving magnetic ring 10 is connected onto the rotating seat 11 in a sleeved mode, the output end of the bidirectional driving motor 30 is connected with a first screw 31, the first screw 31 is in threaded connection with the rotating seat 11, the bidirectional driving motor 30 rotates to drive the driving magnetic ring 10 to be close to or far away from the driven magnetic ring 09 and control the driven magnetic ring 09 to rotate or be static, and positioning points are arranged at the upper end and the lower end of the first screw 31.

Further, the upper end and the lower end of the support 60 are respectively provided with a middle plate 59 and a base 61, the upper end of the middle plate 59 is connected with the pump head body 37, the lower end of the base 61 is connected with the bidirectional driving motor 30, the rotating seat 11 is placed in the inner cavity of the base 61, the first nut 32 is embedded in the middle of the rotating seat 11, and a threaded hole matched with the first screw 31 penetrates through the middle of the first nut 32. Specifically, middle plate 59 compresses tightly between pump head body 37 and support 60, base 61 is connected between two-way driving motor 30 and support 60, support 60 separates off eccentric seat 53 and rotation seat 11 completely, make the water of top can not leak to middle plate 59 below, play fine water proof effect to two-way driving motor 30, first nut 32 with rotate seat 11 fixed connection, be equipped with the screw thread that matches with first screw 31 in the first nut 32, be full thread on the first screw 31, make first nut 32 can rotate on first screw 31.

The working principle of the embodiment is as follows: as shown in fig. 1, in an initial state, a certain distance is set between the rotating seat 11 and the eccentric seat 53, such that the driving magnetic ring 10 cannot drive the driven magnetic ring 09 to rotate, when the bidirectional driving motor 30 rotates forward, the first screw 31 can only rotate along with the output shaft of the motor and cannot move vertically, the first screw 31 is in threaded connection with the first nut 32, the first nut 32 moves upward, the rotating seat 11 also moves upward along with the first screw, when the driving magnetic ring 10 on the rotating seat 11 and the driven magnetic ring 09 on the eccentric seat 53 reach a set distance, at this time, the driving magnetic ring 10 rotates along with the rotating seat 11, the driving magnetic ring 10 drives the driven magnetic ring 09 to rotate, the driven magnetic ring 09 further drives the eccentric seat 53 to rotate along with the second screw, a connecting rod is connected to the eccentric position on the eccentric seat 53, the connecting rod is connected to a pushing frame 08, the connecting rod and the pushing frame 08 form an eccentric assembly, the eccentric assembly is a structure commonly used in the existing diaphragm pump, the pushing frame 08 is connected to the bottom of the pressurizing cavity 34, such that when the pushing frame 08 rotates eccentrically, strong extrusion or pulling of the pressurizing effect of water sucking and the first screw is not capable of being continuously positioned at a point, and the nut 32, and the nut is not capable of being broken when the nut is positioned at the screw. At this time, the first nut 32 is integrated with the first screw 31 and rotates along with the first screw 31, so that the diaphragm pump continues to work; when the upper diaphragm pump needs to stop working and the lower water passing structure needs to be opened, the external controller gives a reverse signal to the bidirectional driving motor 30, the first screw 31 reverses, the first nut 32 and the rotating seat 11 rotate slowly under the action of inertia force and then move downwards, the distance between the driving magnetic ring 10 and the driven magnetic ring 09 is increased until a set value is reached, the driving magnetic ring 10 cannot drive the driven magnetic ring to rotate, the upper diaphragm pump stops working, a water path at the water sealing component in the lower water passing structure is communicated, and at the moment, the first nut 32 stops at a positioning point below the first screw 31 and continues to rotate along with the first screw 31. Therefore, the first nut 32 is matched with the first screw 31, so that the rotating seat 11 moves up and down for a certain distance, and the control of the upper diaphragm pump water path is realized.

Example 3

Furthermore, the water passing structure comprises a valve seat 26 and a bottom cover 21 which are connected with the lower end of the bidirectional driving motor 30, the water sealing component is positioned in the inner cavity of the valve seat 26, and the bottom cover 21 is connected with the lower end of the valve seat 26 in a sealing manner to form a second water inlet cavity 19. Specifically, the valve seat 26 is fixedly connected with the housing of the bidirectional driving motor 30, the second water inlet 25 and the second water outlet 16 are both arranged on the side wall of the valve seat 26, the bottom end of the valve seat 26 is sealed and clamped with the bottom cover 21 in an adaptive manner, the bottom cover 21 and the lower end of the valve seat 26 enclose a second water inlet cavity 19, the source water enters the second water inlet cavity 19 through the second water inlet 25, enters the second water outlet cavity 24 after passing through the water sealing assembly, is conveyed to the second water outlet 16 through the second water outlet cavity 24, and is conveyed to a subsequent pipeline through the second water outlet 16.

Further, the water sealing assembly comprises a first spring 29, a second spring 20, a sealing head 22 and a first control rod 18, a water passing groove 62 is formed in the side wall of the first control rod 18, a sliding body in sliding connection with the inner cavity of the valve seat 26 is arranged at the upper end of the first control rod 18, a threaded hole is formed in the middle of the sliding body, the lower output end of the bidirectional driving motor 30 is connected with a second screw 15 matched with the threaded hole, the upper half section of the second screw 15 is a smooth surface 13, the lower half section of the second screw is a thread, one end of the first spring 29 acts on the bidirectional driving motor 30, the other end of the first spring acts on the sliding body, one end of the second spring 20 acts on the sealing head 22, the other end of the second spring acts on the bottom cover 21, the bidirectional driving motor 30 rotates to drive the sliding body to move up and down and form the water sealing convex ring 23 or the water sealing assembly for controlling the water sealing convex ring 23 to be conducted under the combined action of the first spring 29 and the second spring 20.

Further, the sliding body comprises a sliding block 28 and a control rod seat 17 which are connected with each other, a second nut 12 is embedded in the middle of the sliding block 28, a threaded hole matched with the second screw 15 is formed in the middle of the second nut 12 in a penetrating mode, a positioning point is arranged on the lower end thread of the second screw 15, a lower groove 38 is formed in the middle of the control rod seat 17, a first sealing ring 27 is sleeved on the circumferential direction of the lower groove, a guide groove 14 is formed in the side wall of the valve seat 26, and a protruding block 48 matched with the guide groove 14 is arranged on the side wall of the sliding block 28.

The working principle in this embodiment is as follows: as shown in fig. 1, for example, when the bidirectional driving motor 30 rotates forward, the gyromagnetic component above moves to change the volume of the pressurizing cavity 34, so that water starts to be sucked and pumped from above, at this time, the second spring 20 upwards presses the end enclosure 22 upwards and seals the water sealing convex ring 23, so that the water path between the second water inlet cavity 19 and the second water outlet cavity 24 is sealed, the upper half section of the second screw 15 is a smooth surface 13, the second nut 12 is embedded in the sliding block 28, and the second nut 12 is not in threaded connection with the upper half section of the second screw 15, so that the output shaft at the lower end of the bidirectional driving motor 30 does not drive the second nut 12 to rotate when rotating, the sliding block 28 does not generate displacement, the water path of the whole water passing structure is sealed, and only the diaphragm pump above works to pump water. When a waterway connected with a water passing structure below is required to be communicated, the bidirectional driving motor 30 rotates reversely, the second screw 15 also rotates reversely, the lower end of the second screw 15 is threaded and is matched with the second nut 12, so that the threaded contact between the second screw 15 and the second nut 12 starts threaded connection, and the second screw 15 cannot generate vertical displacement, therefore, the second nut 12 can move downwards, and further drives the slide block 28 to slide downwards along the guide groove 14, the projection 48 prevents the slide block 28 from rotating, the downward movement of the slide block 28 pushes the first control rod 18 to move downwards (in the direction of the second water inlet cavity 19), at the moment, under the combined action of the first spring 29 and the slide block 28, the first control rod 18 overcomes the elasticity of the second spring 20 and the pressure in the second water inlet cavity 19 to push the seal head 22 at the water sealing convex ring 23 downwards, so that the waterway at the water sealing convex ring 23 is communicated, the water in the second water inlet cavity 19 can enter the second water outlet cavity 24 and is discharged from the second water outlet 16, in practice, the time for the slide block 28 to move downwards is very short, generally about 3s, and belongs to a transient action, generally, an external controller gives a reverse signal to the bidirectional driving motor 30, the output shaft at the lower end of the bidirectional driving motor 30 reverses to enable the second nut 12 to move downwards for 3s, and the second nut moves to a positioning point at the lower end of the second screw 15, the positioning point is used for blocking the continuity of the threads, and the nut cannot move downwards again due to the interrupted continuity of the threads, at this time, the second nut 12 and the second screw 15 form a whole body to rotate together with the bidirectional driving motor 30, the waterway at the water sealing convex ring 23 is always in a connection state, if the waterway at the water sealing convex ring 23 needs to be sealed, only the external controller needs to give a reset signal first, the bidirectional driving motor 30 is stopped, then a forward rotation signal is given, so that the output shaft at the lower end of the bidirectional driving motor 30 rotates forward, the second nut 12 moves upwards for 3 seconds along the second screw 15, the second nut 12 is just positioned in the area where the second screw 15 is not threaded, the first control rod 18 and the first spring 29 are not enough to overcome the pressure in the second spring 20 and the second water inlet cavity 19, the first control rod 18 moves upwards, the sealing head 22 seals the water way at the water sealing convex ring 23 again, the first control rod 18 moves upwards or downwards through the driving of the bidirectional driving motor 30, the connection or sealing of the water way at the water sealing convex ring 23 is further controlled, and the diaphragm pump can control the structure of the water way below.

Example 4

Furthermore, a partition plate 04 and a water pumping diaphragm 07 are tightly pressed between the pump head body 37 and the middle plate 59, the left end of the water pumping diaphragm 07 is recessed downwards to form an extension section 56 and form the pressurizing cavity 34, and the partition plate 04 is provided with a water inlet 58 and a water outlet 06 communicated with the pressurizing cavity 34.

Specifically, as shown in fig. 1, a partition plate 04 is compressed between a pump head body 37 and a middle plate 59, a water pumping diaphragm 07 is circumferentially compressed between the partition plate 04 and the middle plate 59, a first water outlet cavity 03 is formed between the partition plate 04 and the inner wall of the pump head body 37, a groove is formed in the outer side wall of the partition plate 04, a third sealing ring 36 is embedded in the groove, the third sealing ring 36 is used for sealing an installation gap between the pump head body 37 and the partition plate 04, a water inlet hole 58 and a water outlet hole 06 are formed in the left end of the partition plate 04, the water inlet hole 58 and the water outlet hole 06 are both communicated with a pressurizing cavity 34, a one-way water inlet and outlet structure is also installed on the partition plate 04 and mainly comprises a one-way water inlet diaphragm 35 and a one-way water outlet diaphragm 33, and the one-way water inlet diaphragm 35 is fixed at the position of the water inlet hole 58 on the partition plate 04, so that source water can only enter the pressurizing cavity 34 from the first water inlet cavity 02 and cannot flow back; a water outlet one-way diaphragm 33 is fixed at the position of a water outlet hole 06 on the partition board 04, so that the source water can only be pumped to the first water outlet cavity 03 from the pressurizing cavity 34 and can not flow back.

Example 5

Further, as shown in fig. 2 and 3, a negative pressure valve seat 39 is arranged on the pump head body 37, a valve cover 41 is arranged at the top of the negative pressure valve seat 39, a vacuum chamber 40 and a third water inlet chamber 47 communicated with the first water inlet 01 are arranged in the negative pressure valve seat 39, the vacuum chamber 40 is communicated with the first water inlet chamber 02 through a water inlet flow channel 49, and a water path communicated with the third water inlet chamber 47 and the vacuum chamber 40 is provided with a water sealing collar 52 and a flow control assembly for controlling the water path sealing or the communication at the water sealing collar 52. Specifically, the negative pressure valve seat 39 and the pump head body 37 can be integrally formed, the valve cover 41 seals the upper end of the negative pressure valve seat 39, the source water from the first water inlet 01 directly enters the third water inlet cavity 47, passes through the flow control assembly and then enters the vacuum cavity 40, is sucked into the pressurizing cavity 34 through the water inlet flow channel 49, is pumped to the first water outlet cavity 03, and is conveyed to other pipelines or valves through the first water outlet 05.

Further, the flow control assembly comprises a second control rod 45, a third spring 42 and an induction diaphragm 44, the periphery of the induction diaphragm 44 is hermetically fixed between the negative pressure valve seat 39 and the valve cover 41, the induction diaphragm 44 and the valve cover 41 form an atmosphere cavity, and the valve cover 41 is provided with an atmosphere hole 43; the side wall of the second control rod 45 is provided with a flow limiting groove 50, one end of the second control rod 45 is connected with a pressure plate 51, the upper end of the pressure plate 51 is fixedly connected with the sensing diaphragm 44, and the other end of the pressure plate is sealed with a water sealing sleeve ring 52; one end of the third spring 42 acts on the pressure plate 51, the other end acts on the inner wall of the negative pressure valve seat 39, and the second control rod 45 forms a sealing water sealing collar 52 or a flow control assembly for controlling the conduction of the water sealing collar 52 under the combined action of the air pressure in the atmosphere cavity, the pressure in the vacuum cavity 40 and the third spring 42.

The working principle of the embodiment is as follows: when the diaphragm pump does not work, the sum of acting forces of the pressure in the vacuum cavity 40 and the elastic force of the third spring 42 on the sensing diaphragm 44 is larger than the acting force of the air pressure in the atmospheric cavity on the sensing diaphragm 44, and the second control rod 45 seals the water sealing collar 52 under the combined action of the acting forces; when the diaphragm pump works, water flow or air in the vacuum cavity 40 is sucked away to form a certain vacuum degree, at this time, the sum of acting forces of the pressure in the vacuum cavity 40 and the elastic force of the third spring 42 on the sensing diaphragm 44 is smaller than the acting force of air pressure in the atmospheric cavity on the sensing diaphragm 44, the second control rod 45 moves downwards (in the direction of the third water inlet cavity 47) under the combined action of the acting forces, the second control rod 45 is provided with the limited flow groove 50 on the side wall, namely the lower end of the second control rod 45 is not provided with the limited flow groove 50, the side wall above the lower end is provided with the limited flow groove 50, the part of the lower end of the second control rod 45 without the limited flow groove 50 completely moves downwards into the third water inlet cavity 47, and when the diaphragm pump continues to move downwards, the third water inlet cavity 47 is communicated with the vacuum cavity 40 through the limited flow groove 50. When the flow limiting groove 50 of the second control rod 45 just moves down into the third water inlet cavity 47, the flow channel through which the third water inlet cavity 47 is communicated with the vacuum cavity 40 through the flow limiting groove 50 is small, the flow rate entering into the vacuum cavity 40 is small, and further the flow entering into the pressurizing water flow is small, so that the flow rate pumped out from the pressurizing cavity 34 is small, if the second control rod 45 continues to move down, the distance that the part of the second control rod 45 with the flow limiting groove 50 moves down into the third water inlet cavity 47 is longer, the flow channel area through which the third water inlet cavity 47 is communicated with the vacuum cavity 40 through the flow limiting groove 50 is increased, and the flow rate pumped out from the upper end of the diaphragm pump is increased. Therefore, the magnitude of the vacuum degree in the vacuum chamber 40 can be adjusted by adjusting the magnitude of the operating voltage (power) of the diaphragm pump, and the distance of downward movement of the second control rod 45 is adjusted, thereby achieving the function of adjusting the output flow rate of the diaphragm pump. The flow control assembly of the present embodiment is suitable for pressure and non-pressure water sources. When the diaphragm pump does not work, the flow control assembly has a water cut-off function; when the diaphragm pump works, the output flow of the diaphragm pump can be adjusted by adjusting the working voltage (power) of the diaphragm pump.

Further, the periphery of the lower end of the second control rod 45 is connected with the water sealing port in a sealing manner through a second sealing ring 46, and the second sealing ring 46 is arranged in a groove in the side wall of the upper end of the third water inlet cavity 47. Specifically, a groove is formed in the inner side wall of the upper end of the third water inlet pipe, a second sealing ring 46 is embedded into the groove, the inner side of the second sealing ring 46 is sealed with the lower end of the second control rod 45, the second sealing ring 46 can improve the sealing performance of the water sealing opening, and water in the third water inlet pipe is prevented from entering the vacuum cavity 40 when the second control rod 45 does not slide downwards.

The utility model discloses a theory of operation: when the first water inlet 01 and the second water inlet 25 are respectively connected into a pipeline of hot water and normal temperature water, the hot water and the normal temperature water are respectively conveyed to a designated place through the first water outlet 05 and the second water outlet 16, in an initial state, the upper gyromagnetic component cannot act and a waterway at the lower water sealing component is closed, the controller gives a forward rotation signal to the bidirectional driving motor 30, the output shaft of the bidirectional driving motor 30 rotates forwards, the first nut 32 moves upwards, the rotating seat 11 also moves upwards along with the forward rotation signal, when the driving magnetic ring 10 on the rotating seat 11 and the driven magnetic ring 09 on the eccentric seat 53 reach a set distance, at the moment, the driving magnetic ring 10 rotates along with the rotating seat 11, the driving magnetic ring 10 can drive the driven magnetic ring 09 to rotate, the driven magnetic ring 09 further drives the eccentric seat 53 to rotate along with the forward rotation, the eccentric seat 53 drives the eccentric assembly to rotate eccentrically, so that extrusion or pulling can be realized on a pressurizing cavity, hot water can be pumped from the first water inlet 01 to the first water outlet 05, when the first screw 32 moves to a positioning point above the first screw 31, the first nut 32 and the second nut 32 can not rotate together with the second screw, the nut 15 can not move continuously, the nut 15 can not move, the second nut 15 and the nut can not move continuously, the screw, the nut 15 can not move to the lower nut 15, and the nut can not move continuously, and the second screw, the nut can not move continuously, and the second screw 15, the nut can not move, and the nut can not move, the nut 15, the second screw 12, the nut can not move continuously, and the nut can not move, the lower screw 15, the screw 12, the nut can not move, and the nut can not move, the nut can not move continuously; when the water passing structure below the first screw 31 needs to be opened, the external controller gives a reverse signal to the bidirectional driving motor 30, the first screw 31 reverses, the first nut 32 and the rotating seat 11 move downwards under the action of inertia force, the distance component between the driving magnetic ring 10 and the driven magnetic ring 09 is increased until a set value is reached, the driving magnetic ring 10 cannot drive the driven magnetic ring to rotate, the diaphragm pump above the driving magnetic ring stops working, and at the moment, the first nut 32 stops at a positioning point below the first screw 31 and continues to rotate along with the first screw 31.

When the bidirectional driving motor 30 rotates reversely at the lower limit of the instruction of the controller, the second screw 15 rotates reversely, the second screw 15 contacts with the thread of the second nut 12 to start threaded connection, and the second screw 15 does not generate vertical displacement, so that the second nut 12 moves downwards to drive the slider 28 to slide downwards along the guide groove 14, the slider 28 moves downwards to push the first control rod 18 to move downwards (the direction of the second water inlet cavity 19), at the moment, under the combined action of the first spring 29 and the slider 28, the first control rod 18 overcomes the elasticity of the second spring 20 and the pressure in the second water inlet cavity 19 to push the seal head 22 at the water sealing convex ring 23 downwards, so that the water channel at the water sealing convex ring 23 is connected, and the water in the second water inlet cavity 19 can enter the second water outlet cavity 24, the water is discharged from the second water outlet 16, at the moment, the controller maintains the power-off state of the motor, the water path at the water sealing convex ring 23 is always in a connected state, if the water path at the water sealing convex ring 23 needs to be sealed again and the diaphragm pump above the water sealing convex ring is started, only a reset signal needs to be given by an external controller firstly, so that the bidirectional driving motor 30 rotates forwards, the output shaft at the lower end of the bidirectional driving motor 30 rotates forwards, the second nut 12 moves upwards along the second screw rod 15, the second nut 12 is just positioned in the area without threads of the second screw rod 15, and therefore the first control rod 18 and the first spring 29 are not enough to overcome the pressure in the second spring 20 and the second water inlet cavity 19, the first control rod 18 moves upwards, the end enclosure 22 seals the water path at the water sealing convex ring 23 again, and the motor stops running at the moment. So, under the instruction of controller, two-way driving motor 30 moves just can control the gyromagnetic component, seals water subassembly and move according to the water needs in turn, and then realizes the switch-on or the closure of two steerable water routes of this diaphragm pump, when it was used in drinking water system, need not to increase other pipeline and supporting control flap in drinking water system, and whole drinking water system's pipeline can not complicate, and the cost of manufacture also can not corresponding increase.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.

Claims (10)

1. A diaphragm pump with an alternative waterway structure comprises a pump head body (37), an eccentric assembly and a gyromagnetic assembly, wherein a pressurizing cavity (34), a first water inlet cavity (02) and a first water outlet cavity (03) are arranged in the pump head body (37), the first water inlet cavity (02) and the first water outlet cavity (03) are respectively communicated with a first water inlet (01) and a first water outlet (05), the pressurizing cavity (34) is respectively communicated with the first water inlet cavity (02) and the first water outlet cavity (03) through a unidirectional water inlet and outlet structure, the gyromagnetic assembly drives the eccentric assembly to change the volume of the pressurizing cavity (34) to suck or pump source water, the diaphragm pump is characterized by further comprising a bidirectional driving motor (30) and a water passing structure, a second water inlet cavity (19) and a second water outlet cavity (24) are arranged in the water passing structure, the second water inlet cavity (19) and the second water outlet cavity (24) are respectively communicated with a second water inlet (25) and a second water outlet (16), a water sealing convex ring (23) is formed by the waterway where the second water inlet cavity (19) and the second water outlet cavity (24) are communicated with the second water outlet cavity (23), and the waterway sealing ring (23) is controlled, and the two-sealing assembly controls the action of the two-sealing assembly, and the two-sealing assembly controls the two-way-sealing assembly to control motor to control the action of the two-sealing assembly and control the two-way magnetic assembly.

2. The diaphragm pump with the alternating waterway structure according to claim 1, wherein the gyromagnetic assembly includes a bracket (60), a driving magnetic ring (10), a driven magnetic ring (09), and a rotating shaft (55), a middle portion of the bracket (60) is recessed downward to form a continuous first-stage cavity and a continuous second-stage cavity, an eccentric seat (53) is disposed in the first-stage cavity, a bearing (57) is disposed in the second-stage cavity, the eccentric seat (53) is connected to the rotating shaft (55), the rotating shaft (55) is connected to an inner ring of the bearing (57), the eccentric assembly is eccentrically connected to the eccentric seat (53), the driven magnetic ring (09) is sleeved on the eccentric seat (53), a rotating seat (11) is disposed below the bracket (60), the driving magnetic ring (10) is sleeved on the rotating seat (11), an output end of the bidirectional driving motor (30) is connected to a first screw (31), the first screw (31) is threadedly connected to the rotating seat (11), the bidirectional driving motor (30) rotates to drive the driving magnetic ring (10) to approach or move away from the driven magnetic ring (09) and control the driven magnetic ring (09) to rotate or to be stationary, and the first screw (31) is disposed at an upper end position and the upper position and the lower position of the first screw (31) is disposed at the lower position.

3. The diaphragm pump with the alternate waterway structure according to claim 2, wherein the upper end and the lower end of the bracket (60) are respectively provided with a middle plate (59) and a base (61), the upper end of the middle plate (59) is connected with the pump head body (37), the lower end of the base (61) is connected with the bidirectional driving motor (30), the rotating seat (11) is placed in an inner cavity of the base (61), the first nut (32) is embedded in the middle of the rotating seat (11), and the middle of the first nut (32) is provided with a threaded hole matched with the first screw rod (31) in a penetrating manner.

4. The diaphragm pump with the alternate waterway structure according to claim 1, wherein the water passing structure comprises a valve seat (26) connected to the lower end of the bidirectional driving motor (30) and a bottom cover (21), the water sealing assembly is located in the inner cavity of the valve seat (26), and the bottom cover (21) and the lower end of the valve seat (26) are hermetically connected to form a second water inlet cavity (19).

5. The diaphragm pump with the alternate waterway structure according to claim 1, wherein the water sealing assembly comprises a first spring (29), a second spring (20), a sealing head (22) and a first control rod (18), a water passing groove (62) is formed in the side wall of the first control rod (18), a sliding body which is slidably connected with the inner cavity of the valve seat (26) is arranged at the upper end of the first control rod (18), a threaded hole is formed in the middle of the sliding body, a second screw rod (15) matched with the threaded hole is connected to the lower output end of the bidirectional driving motor (30), the upper half section of the second screw rod (15) is a smooth surface (13), the lower half section of the second screw rod is a thread, one end of the first spring (29) acts on the bidirectional driving motor (30), the other end of the first spring acts on the sliding body, one end of the second spring (20) acts on the sealing head (22), the other end of the second spring acts on the bottom cover (21), the bidirectional driving motor (30) rotates to drive the sliding body to move up and form a water sealing convex ring (23) or control the conduction of the water sealing convex ring (23) under the combined action of the first spring (29) and the second spring (20).

6. A diaphragm pump with an alternate waterway structure according to claim 5, wherein the sliding body comprises a sliding block (28) and a control rod seat (17) which are connected with each other, a second nut (12) is embedded in the middle of the sliding block (28), a threaded hole matched with the second screw (15) is arranged in the middle of the second nut (12) in a penetrating manner, a positioning point is arranged on the lower end thread of the second screw (15), a lower groove (38) is arranged in the middle of the control rod seat (17), a first sealing ring (27) is circumferentially sleeved on the sliding block, a guide groove (14) is arranged on the side wall of the valve seat (26), and a convex block (48) matched with the guide groove (14) is arranged on the side wall of the sliding block (28).

7. The diaphragm pump with the alternate waterway structure according to claim 3, wherein a partition plate (04) and a water pumping diaphragm (07) are compressed between the pump head body (37) and the middle plate (59), the left end of the water pumping diaphragm (07) is recessed downwards to form an extension section (56) and form the pressurizing cavity (34), and the partition plate (04) is provided with a water inlet hole (58) and a water outlet hole (06) communicated with the pressurizing cavity (34).

8. The diaphragm pump with the alternate waterway structure according to claim 1, wherein a negative pressure valve seat (39) is arranged on the pump head body (37), a valve cover (41) is arranged on the top of the negative pressure valve seat (39), a vacuum chamber (40) and a third water inlet chamber (47) communicated with the first water inlet (01) are arranged in the negative pressure valve seat (39), the vacuum chamber (40) is communicated with the first water inlet chamber (02) through a water inlet flow passage (49), and a waterway communicated with the third water inlet chamber (47) and the vacuum chamber (40) is provided with a water sealing collar (52) and a flow control assembly for controlling the waterway sealing or the waterway conduction at the water sealing collar (52).

9. The diaphragm pump with the alternate waterway structure according to claim 8, wherein the flow control assembly comprises a second control rod (45), a third spring (42) and an inductive diaphragm (44), the periphery of the inductive diaphragm (44) is hermetically fixed between the negative pressure valve seat (39) and the valve cover (41), the inductive diaphragm (44) and the valve cover (41) form an atmospheric chamber, and the valve cover (41) is provided with an atmospheric hole (43); a flow limiting groove (50) is formed in the side wall of the second control rod (45), one end of the second control rod (45) is connected with a pressing plate (51), the upper end of the pressing plate (51) is fixedly connected with the sensing diaphragm (44), and the other end of the second control rod (45) passes through a water sealing sleeve ring (52) at the lower end of the second control rod (45); one end of the third spring (42) acts on the pressure plate (51), the other end acts on the inner wall of the negative pressure valve seat (39), and the second control rod (45) forms a sealing water sealing sleeve ring (52) or a flow control assembly for controlling the conduction of the water sealing sleeve ring (52) under the combined action of the air pressure in the atmosphere cavity, the pressure in the vacuum cavity (40) and the third spring (42).

10. The diaphragm pump with the alternate waterway structure according to claim 9, wherein the lower end periphery of the second control rod (45) is connected with the water sealing port in a sealing manner through a second sealing ring (46), and the second sealing ring (46) is arranged in a groove on the upper end side wall of the third water inlet cavity (47).

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