CN219197605U - Diaphragm pump with dynamic flow regulating function - Google Patents

Abstract

The utility model discloses a diaphragm pump with a dynamic flow regulating function, which comprises a pump head body, wherein a water inlet, a water outlet, a water inlet cavity and a water outlet cavity are arranged in the pump head body, the water outlet is communicated with the water outlet cavity, the water inlet is communicated with the water inlet cavity, a water pumping assembly is arranged on a waterway between the water inlet cavity and the water outlet cavity, a driving device is connected on the water pumping assembly, a high-pressure cavity, a water passing cavity and a reflux cavity communicated with the water inlet are also arranged in the pump head body, a flow control assembly for controlling the water outlet flow by regulating working voltage is arranged on the waterway communicated between the water passing cavity and the water outlet, and a reflux assembly for controlling the reflux flow by regulating the working voltage is arranged on the waterway communicated between the water passing cavity and the water inlet. The utility model has the function of dynamically regulating the flow and is used for meeting the requirement that the diaphragm pump can realize low flow output under the lowest starting voltage.

Description

Diaphragm pump with dynamic flow regulating function

Technical Field

The utility model relates to the technical field of fluid delivery, in particular to a diaphragm pump with a function of dynamically adjusting flow.

Background

The diaphragm pump is a common pumping component in the field of fluid transportation, the eccentric assembly is driven by the rotation of the motor to pull the pressurizing diaphragm, the volume of the pressurizing cavity is changed, and therefore the effect of pumping water is achieved, but at present, when the motor of the diaphragm pump is started, a certain starting voltage is required to enable an output shaft of the motor to rotate, and then the diaphragm pump achieves the effect of pumping water, the lowest starting voltage of the motor is the lowest voltage at which the motor can work, the rotating speed of the motor is also faster at the voltage, so that the water outlet flow rate of the diaphragm pump is larger when the diaphragm pump is started, and in some practical applications, low flow output is required when the diaphragm pump is started, but the current diaphragm pump does not have the function of flow regulation, the water outlet flow rate is certain, and the water outlet flow rate cannot meet the requirement of low flow output when the diaphragm pump is started.

Disclosure of Invention

The utility model aims to provide a diaphragm pump with a function of dynamically adjusting flow, which has the function of dynamically adjusting flow and is used for meeting the requirement that the diaphragm pump can realize low flow output under the lowest starting voltage.

In order to solve the technical problems, the utility model adopts the following scheme:

the utility model provides a diaphragm pump with dynamic adjustment flow function, includes the pump head body, is equipped with water inlet, delivery port, intake cavity, play water cavity in the pump head body, delivery port and play water cavity switch-on, and the water inlet is equipped with pump water subassembly on the water route between intake cavity and the play water cavity switch-on, is connected with drive arrangement on the pump water subassembly, still be equipped with the high-pressure chamber of mutual switch-on, cross water cavity and with the backward flow chamber of water inlet switch-on in the pump head body, be equipped with the accuse flow subassembly through adjusting operating voltage control play water flow on the water route of switch-on between water cavity and the delivery port, be equipped with the backward flow subassembly through adjusting operating voltage control backward flow on the water route of switch-on between water cavity and the water inlet.

By adopting the technical scheme, on the basis of the existing diaphragm pump, the high-pressure cavity and the water passing cavity which are communicated with each other and the backflow cavity communicated with the water inlet are arranged in the pump head body, the flow control assembly is arranged on the waterway communicated between the water passing cavity and the water outlet, the backflow assembly is arranged on the waterway communicated between the water passing cavity and the water inlet, when the diaphragm pump is started under the minimum starting voltage, the driving device acts and drives the water pumping assembly to act, water is pumped from the water inlet cavity to the high-pressure cavity and then enters the water passing cavity through the water inlet, a small part of water in the water passing cavity is conveyed to the water outlet after passing through the flow control assembly, and the other part of water is conveyed back to the water inlet after passing through the backflow assembly, so that when the diaphragm pump is started, the water is not completely output from the water outlet, the water outlet is lower in regulation, the water outlet and the backflow amount of the water can be increased by regulating the working voltage on the basis of the minimum starting voltage, the backflow amount of the backflow assembly can be stopped, the flow control assembly is increased, and the diaphragm pump of the flow control assembly can be further increased, and the diaphragm pump of the scheme has the function of dynamically regulating the flow, so that the diaphragm pump can meet the minimum starting voltage and realize the low output requirement of the diaphragm pump.

Optionally, the pump head body upper end sealing connection adaptation pump cover encloses into between pump cover and the pump head body and has first air cavity, second air cavity, is equipped with the atmospheric hole of switch-on first air cavity, second air cavity simultaneously on the pump cover, and first air cavity is used for installing accuse flow subassembly, and the second air cavity is used for installing the backward flow subassembly.

Optionally, the accuse flows the subassembly and includes first reset spring, first control lever upper end and first air cavity inner wall seal and sliding connection, first control lever lower extreme and apopore sliding connection are equipped with first restriction groove on the lateral wall of first control lever lower part, first restriction groove sets up along first control lever length direction slope, first reset spring one end acts on the pump cover, the other end acts on first control lever, first control lever constitutes the accuse of the accuse flow subassembly of water flow under the combined action of first air cavity internal air pressure, water cavity water pressure and first reset spring.

Optionally, the first control rod is embedded with a first sealing ring circumferentially, and the first sealing ring is tightly sealed between the first control rod and the inner wall of the first air cavity.

Optionally, the side of the first control rod is provided with a second sealing ring embedded in the pump head body, the upper end of the second sealing ring is tightly pressed with a pressing lantern ring, the second sealing ring is close to the upper end position of the first flow limiting groove, and the change of the outlet water flow is controlled by the change of the distance between the second sealing ring and the first flow limiting groove.

Optionally, the backward flow subassembly includes second reset spring, second control rod upper end and second air cavity inner wall seal and sliding connection, second control rod lower extreme and backward flow chamber sliding connection, second control rod bottom is connected with and seals the jam, be equipped with the second restriction groove that is located the shutoff plug on the second control rod lateral wall, second reset spring one end acts on the pump cover, the other end acts on the second control rod, the backward flow subassembly of control backward flow is constituteed under the combined action of second air cavity internal air pressure, water cavity water pressure and second reset spring to the second control rod.

Optionally, a third sealing ring is circumferentially embedded in the second control rod, and the third sealing ring is tightly pressed between the second control rod and the inner wall of the second air cavity.

Optionally, the side of the second control rod is provided with a fourth sealing ring embedded in the pump head body, the upper end of the fourth sealing ring is tightly pressed with a pressing lantern ring, and the fourth sealing ring is positioned above the second flow limiting groove.

Optionally, pump head body lower extreme is equipped with baffle, first support, second support, and first support, second support and baffle enclose into the installation cavity that is used for installing the pump water subassembly, compress tightly between baffle and the pump head body circumference and seal to have sealed the pad, and drive arrangement is the motor and installs in second support bottom.

Optionally, the pump water subassembly includes the pressure boost diaphragm, push away the frame, the eccentric shaft, eccentric seat, pressure boost diaphragm circumference seals compresses tightly between baffle and first support, enclose between pressure boost diaphragm and the baffle and become to have the pressure boost chamber, be equipped with the one-way valve clack of intaking of fixing on the baffle on the water route that intake chamber and pressure boost chamber put through, be equipped with the play water one-way membrane that compresses tightly between pump head body and baffle between pressure boost chamber and the high-pressure chamber, be equipped with the inlet opening that is located the one-way valve clack department of intaking and the apopore that is located play water one-way membrane department on the baffle, pressure boost diaphragm lower extreme is connected with pushing away the frame, the eccentric seat is connected to the motor output, eccentric shaft upper end and push away the frame bottom and be connected, eccentric shaft lower extreme and eccentric seat eccentric connection.

The utility model has the beneficial effects that:

1. in the utility model, the water pumping assembly acts to pump water from the water inlet cavity to the high-pressure cavity, then enters the water passing cavity through the water gap, a small part of the water in the water passing cavity is conveyed to the water outlet through the flow control assembly, and the other part of the water in the water passing cavity is conveyed back to the water inlet through the backflow assembly, so that when the diaphragm pump is started, the water is not completely output from the water outlet, the water outlet flow is lower, on the basis of the minimum starting voltage, the flow control assembly and the backflow assembly can both regulate the water outlet flow and the backflow amount of the water, the working voltage is increased, the backflow amount of the backflow assembly can be stopped, and the water outlet flow controlled by the flow control assembly is increased, so that the diaphragm pump of the scheme has the function of dynamically regulating the flow, and is used for meeting the requirement that the diaphragm pump can realize low flow output under the minimum starting voltage.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Reference numerals: 01-motor, 02-eccentric seat, 03-eccentric shaft, 04-pushing frame, 05-second support, 06-pressurizing diaphragm, 07-first support, 08-pressurizing cavity, 09-baffle, 10-sealing gasket, 11-water outlet, 12-water inlet, 13-first limiting groove, 14-pump head body, 15-fifth sealing ring, 16-second sealing ring, 17-first control rod, 18-first sealing ring, 19-first return spring, 20-air hole, 21-pump cover, 22-second return spring, 23-third sealing ring, 24-second control rod, 25-fourth sealing ring, 26-compressing collar, 27-water outlet unidirectional film, 28-second limiting groove, 29-sealing plug, 30-water inlet, 31-water inlet cavity, 32-water inlet unidirectional valve clack, 33-water inlet hole, 34-water outlet cavity, 35-high pressure cavity, 36-water outlet hole, 37-first air cavity, 38-second air cavity, 39-water outlet cavity, 40-backflow cavity.

Detailed Description

The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

The utility model provides a diaphragm pump with dynamic flow regulation function, includes pump head body 14, is equipped with water inlet 30, delivery port 11, inlet chamber 31, play water chamber 39 in the pump head body 14, and delivery port 11 is put through with play water chamber 39, and water inlet 30 is put through with inlet chamber 31, is equipped with the pump water subassembly on the water route between inlet chamber 31 and the play water chamber 39, is connected with drive arrangement on the pump water subassembly, still be equipped with the high-pressure chamber 35 of mutual switch-on, cross water chamber 34 and with the backward flow chamber 40 of water inlet 30 switch-on in the pump head body 14, be equipped with the accuse flow subassembly of controlling out water flow through adjusting operating voltage on the water route of switch-on between water chamber 34 and the delivery port 11, be equipped with the backward flow subassembly of controlling backward flow through adjusting operating voltage on the water route of switch-on between water chamber 34 and the water inlet 30.

In this embodiment, the pump head body 14 of the existing diaphragm pump is respectively provided with a water inlet cavity 31 and a water outlet cavity 39 which are communicated with the water inlet 30 and the water outlet 11, the driving device drives the pump water component to pump water in the water inlet cavity 31 to the water outlet cavity 39 under the working voltage, the pumped water quantity is determined according to the rotating speed of the driving motor 01, the rotating speed of the driving motor 01 is controlled by the working voltage, the higher the rotating speed is, the larger the pump water flow is, and the driving device can work under the lowest starting voltage, but at present, the rotating speed is also higher under the lowest starting voltage, the pump water quantity is also larger, and the low flow output cannot be realized. Therefore, the high-pressure cavity 35 and the water passing cavity 34 which are communicated with each other and the backflow cavity 40 communicated with the water inlet 30 are arranged in the pump head body 14, the flow control assembly is arranged on the waterway communicated between the water passing cavity 34 and the water outlet 11, the backflow assembly is arranged on the waterway communicated between the water passing cavity 34 and the water inlet 30, when the diaphragm pump is started under the minimum starting voltage, the driving device acts and drives the water pumping assembly to act, water is pumped from the water inlet cavity 31 to the high-pressure cavity 35 and then enters the water passing cavity 34 through the water inlet 12, a small part of the water in the water passing cavity 34 is conveyed to the water outlet 11 after passing through the flow control assembly, and the other part of the water is conveyed back to the water inlet 30 after passing through the backflow assembly, so that when the diaphragm pump is started, the water is not completely output from the water outlet 11, the water flow control assembly and the backflow assembly can be regulated.

Further, the upper end of the pump head body 14 is connected with an adapted pump cover 21 in a sealing manner, a first air cavity 37 and a second air cavity 38 are enclosed between the pump cover 21 and the pump head body 14, the pump cover 21 is provided with an air hole 20 for simultaneously connecting the first air cavity 37 and the second air cavity 38, the first air cavity 37 is used for installing a flow control assembly, and the second air cavity 38 is used for installing a backflow assembly. Specifically, the upper end of the pump head body 14 is connected with an adapted pump cover 21, the top end of the pump head body 14 is provided with a groove, a fifth sealing ring 15 is embedded in the groove, the fifth sealing ring 15 is tightly sealed between the pump cover 21 and the pump head body 14, sealing between the pump cover 21 and the pump head body is achieved, water seepage is avoided, a first air cavity 37 and a second air cavity 38 are formed in the inner portion of the pump cover 21 in a separated mode, an air hole 20 which is communicated with the first air cavity 37 and the second air cavity 38 is formed in the center of the top of the pump cover 21, a flow control assembly is arranged in the first air cavity 37, a backflow assembly is arranged in the second air cavity 38, the flow control assembly cuts off the water passing cavity 34 from the second air cavity 38, and water in the water passing cavity 34 can enter the water outlet cavity 39 and the water inlet cavity 31 respectively through the flow control assembly and the backflow assembly, and accordingly low-flow output under starting voltage is achieved.

Further, the flow control assembly comprises a first return spring 19 and a first control rod 17, the upper end of the first control rod 17 is in sealing and sliding connection with the inner wall of the first air cavity 37, the lower end of the first control rod 17 is in sliding connection with the water outlet cavity 39, a first limiting groove 13 is formed in the side wall of the lower portion of the first control rod 17, the first limiting groove 13 is obliquely arranged along the length direction of the first control rod 17, one end of the first return spring 19 acts on the pump cover 21, the other end of the first return spring acts on the first control rod 17, and the first control rod 17 forms the flow control assembly for controlling the water outlet flow under the combined actions of air pressure in the first air cavity 37, water pressure of the water passing cavity 34 and the first return spring 19.

The working principle of the embodiment is as follows: the flow control assembly mainly comprises a first reset spring 19 and a first control rod 17, wherein the first control rod 17 is in a T shape, the upper part of the first control rod 17 is U-shaped, the lower part of the first control rod 17 is columnar, the upper part of the first control rod is sealed with the inner wall of a first air cavity 37 and is in sliding connection, the lower part of the first control rod extends into a water outlet cavity 39, a first limiting groove 13 is formed in the side wall of the lower part of the first control rod 17, the first limiting groove 13 is obliquely arranged, a gap is formed between the first limiting groove 13 and the side wall of the water outlet cavity 39, the space between the first limiting groove 13 and the side wall of the water outlet cavity 39 is gradually increased from top to bottom, the upper end of the first reset spring 19 acts on a pump cover 21, the other end of the first reset spring 19 acts on the U-shaped upper part of the first control rod 17, the U-shaped structure can prevent the first reset spring 19 from sliding out, and when a driving device is started under the lowest starting voltage, the elasticity of the first reset spring 19 can be adjusted in advance, the water pressure in the water passing cavity 34 can not overcome the elasticity of the first return spring 19 and the air pressure in the first air cavity 37, so that the first control rod 17 can not move upwards, water can only flow out from the narrow gap between the first control rod 17 and the water outlet cavity 39, the rest of water in the water passing cavity 34 is conveyed to the reflux cavity 40 through the reflux component and finally flows back to the water inlet 30, the requirement of low flow output under the lowest starting voltage is realized, if the working voltage is increased, the rotating speed of the driving device is increased, the water amount pumped into the water passing cavity 34 is increased, the water pressure in the water passing cavity 34 is increased, the water pressure is also increased enough to overcome the elasticity of the first return spring 19 and the air pressure in the first air cavity 37, the first control rod 17 can move upwards, the distance between the first limiting groove 13 at the lower part of the first control rod 17 and the side wall of the water outlet cavity 39 is gradually increased, the water amount output into the water outlet cavity 39 is more, therefore, the function of dynamically adjusting the output flow is realized by adjusting the working voltage.

Further, the first control rod 17 is circumferentially embedded with a first sealing ring 18, and the first sealing ring 18 is tightly sealed between the first control rod 17 and the inner wall of the first air cavity 37. Specifically, a circle of groove is formed in the side wall of the upper end of the first control rod 17, the first sealing ring 18 is embedded in the groove, the first sealing ring 18 is tightly sealed between the first control rod 17 and the side wall of the first air cavity 37, a sliding gap between the upper end of the first control rod 17 and the first air cavity 37 can be effectively sealed, and water in the water passing cavity 34 is prevented from entering the first air cavity 37 and flowing out of the atmospheric hole 20.

Further, a second sealing ring 16 embedded in the pump head body 14 is arranged on the side surface of the first control rod 17, a pressing collar 26 is pressed at the upper end of the second sealing ring 16, the second sealing ring 16 is close to the upper end of the first flow limiting groove 13, and the change of the outlet water flow is controlled by the change of the distance between the second sealing ring 16 and the first flow limiting groove 13. Specifically, a groove is formed in the side wall of the upper end of the water outlet cavity 39, the second sealing ring 16 is embedded in the groove, the water outlet cavity 39 is formed in the pump head body 14, the second sealing ring 16 is embedded in the pump head body 14, the second sealing ring 16 is tightly pressed with the pressing collar 26, the second sealing ring 16 is prevented from sliding out, the lower end of the first control rod 17 directly penetrates through the pressing collar 26 and the second sealing ring 16 to extend into the water outlet cavity 39, when the water pressure in the water cavity 34 upwards pushes the first control rod 17, the distance between the first limiting groove 13 and the second sealing ring 16 is gradually increased along with the gradual upward movement of the lower end of the first control rod 17, the smaller the limiting effect of the second sealing ring 16 is, and more water flow is output, otherwise, the less water flow is output, and the dynamic adjustment of the flow is realized.

Further, the backflow component comprises a second return spring 22 and a second control rod 24, the upper end of the second control rod 24 is in sealing and sliding connection with the inner wall of the second air cavity 38, the lower end of the second control rod 24 is in sliding connection with the backflow cavity 40, the bottom end of the second control rod 24 is connected with a sealing plug 29, a second flow limiting groove 28 positioned above the sealing plug 29 is arranged on the side wall of the second control rod 24, one end of the second return spring 22 acts on the pump cover 21, the other end acts on the second control rod 24, and the second control rod 24 forms a backflow component for controlling backflow flow under the combined actions of air pressure in the second air cavity 38, water pressure of the water passing cavity 34 and the second return spring 22.

The working principle of the embodiment is as follows: the reflux assembly mainly comprises a second reset spring 22 and a second control rod 24, the second control rod 24 is in a T shape, the upper part of the second control rod 24 is U-shaped, the lower part of the second control rod 24 is columnar, the upper part of the second control rod is sealed with the inner wall of a second air cavity 38 and is in sliding connection, the lower part of the second control rod extends into a reflux cavity 40, a second limiting groove 28 is formed in the side wall of the lower part of the second control rod 24, a blocking plug 29 integrally formed with the second control rod 24 is arranged below the second limiting groove 28, the upper end of the second reset spring 22 acts on a pump cover 21, the lower end of the second reset spring acts on the U-shaped part of the upper part of the second control rod 24, the U-shaped structure can prevent the second reset spring 22 from sliding out, the driving device can pre-regulate the elasticity of the second reset spring 22 when started under the lowest starting voltage, so that the water pressure generated by the water pumping assembly in the water passing cavity 34 can overcome the elasticity of the second reset spring 22 and the air pressure in the second air cavity 38 under the lowest starting voltage, the water pressure generated by the water passing cavity 34 can move upwards, the water passing cavity 34 and the water passing through the reflux cavity 40, the upper end of the water passing through the second control rod is enabled to be communicated with the reflux cavity 34 under the lowest starting voltage, the water pressure is not required by the water pressure of the water passing through the water passing cavity, and the water passing through the top cavity is low starting voltage, the water outlet valve is realized, and the water flow is low, the water volume is required to be completely when the water is low, and the water is started to be low, and the water is discharged. If the working voltage is increased, the rotation speed of the driving device is increased, the water amount pumped into the water passing cavity 34 is increased, the water pressure is increased along with the increase of the water amount in the water passing cavity 34, the elasticity of the first return spring 19 and the air pressure in the first air cavity 37 are overcome, the first control rod 17 moves upwards, the distance between the first limiting groove 13 at the lower part of the first control rod 17 and the side wall of the water outlet cavity 39 is gradually increased, the water amount output into the water outlet cavity 39 is increased, meanwhile, the second control rod 24 also moves upwards until the water path between the water passing cavity 34 and the backflow cavity 40 is blocked by the blocking plug 29, and the water outlet flow reaches the maximum, so that the function of dynamically adjusting the output flow is realized by adjusting the working voltage.

Further, a third sealing ring 23 is circumferentially embedded in the second control rod 24, and the third sealing ring 23 is tightly pressed between the second control rod 24 and the inner wall of the second air cavity 38. Specifically, a circle of groove is formed in the side wall of the upper end of the second control rod 24, a third sealing ring 23 is embedded in the groove, the third sealing ring 23 is tightly sealed between the second control rod 24 and the side wall of the second air cavity 38, a sliding gap between the upper end of the second control rod 24 and the second air cavity 38 can be effectively sealed, and water in the water passing cavity 34 is prevented from entering the second air cavity 38 and flowing out of the atmospheric hole 20.

Further, a fourth sealing ring 25 embedded in the pump head body 14 is arranged on the side surface of the second control rod 24, a pressing collar 26 is pressed at the upper end of the fourth sealing ring 25, and the fourth sealing ring 25 is located above the second limiting groove 28. Specifically, a groove is formed on the side wall of the upper end of the backflow cavity 40, a fourth sealing ring 25 is embedded in the groove, the backflow cavity 40 is formed in the pump head body 14, which is equivalent to that the fourth sealing ring 25 is embedded in the pump head body 14, the fourth sealing ring 25 is tightly pressed with a pressing collar 26, the fourth sealing ring 25 is prevented from sliding out, the fourth sealing ring 25 seals the position above the second limiting groove 28 and the blocking plug 29, when the water pressure in the water cavity 34 pushes up the second control rod 24, the lower end of the second control rod 24 gradually moves upwards along with the water pressure in the water cavity 28 until the upper end of the second limiting groove 28 exceeds the fourth sealing ring 25, so that a waterway between the water cavity 34 and the backflow cavity 40 is communicated, water in the water cavity 34 starts to flow back, if the working voltage is changed, the water pressure in the water cavity 34 is higher, the displacement amount of the upward movement of the second control rod 24 is larger until the blocking plug 29 is in contact with the fourth sealing ring 25, the backflow effect disappears, and at this time, the first control rod 17 is also moved upwards to the maximum position, the maximum water outlet is understood to be the water outlet flow rate is reached, and the maximum backflow effect is reached, and the maximum water outlet is understood to be the maximum, and the backflow effect is reached, and the maximum water outlet is understood.

Further, the lower extreme of the pump head body 14 is provided with a partition plate 09, a first support 07, a second support 05, the first support 07, the second support 05 and the partition plate 09 enclose into a mounting cavity for mounting a pumping assembly, a sealing gasket 10 is tightly pressed and sealed between the partition plate 09 and the periphery of the pump head body 14, and a driving device is a motor 01 and is mounted at the bottom end of the second support 05.

Further, the pump water component comprises a pressurizing diaphragm 06, a pushing frame 04, an eccentric shaft 03 and an eccentric seat 02, wherein the pressurizing diaphragm 06 is circumferentially sealed and tightly pressed between a partition plate 09 and a first bracket 07, a pressurizing cavity 08 is formed between the pressurizing diaphragm 06 and the partition plate 09, a water inlet one-way valve clack 32 fixed on the partition plate 09 is arranged on a waterway communicated with the water inlet cavity 31 and the pressurizing cavity 08, a water outlet one-way film 27 tightly pressed between a pump head 14 and the partition plate 09 is arranged between the pressurizing cavity 08 and a high-pressure cavity 35, a water inlet hole 33 positioned at the water inlet one-way valve clack 32 and a water outlet hole 36 positioned at the water outlet one-way film 27 are arranged on the partition plate 09, the lower end of the pressurizing diaphragm 06 is connected with the pushing frame 04, the output end of a motor 01 is connected with the eccentric seat 02, the upper end of the eccentric shaft 03 is connected with the bottom end of the pushing frame 04, and the lower end of the eccentric shaft 03 is eccentrically connected with the eccentric seat 02. Specifically, the working principle and the construction of the water pumping assembly are the technology in the existing diaphragm pump, and belong to the known technology, and are not repeated herein. It should be noted that, in this embodiment, the water outlet unidirectional film 27 and the sealing pad 10 are made of the same material, and are integrally formed and then distributed between the pump head body 14 and the first bracket 07, and the sealing pad 10 is used in an installation gap between the pump head body 14 and the first bracket 07 to avoid water leakage.

The working principle of the utility model is as follows: when the diaphragm pump is started under the lowest voltage, the motor 01 rotates to drive the eccentric seat 02 to rotate, the eccentric seat 02 drives the pushing frame 04 to eccentrically rotate, the pushing frame 04 drives the pressurizing diaphragm 06 to change the volume of the pressurizing cavity 08, when the volume of the pressurizing cavity 08 is increased, pressureless water at the water inlet 30 is sucked into the water inlet cavity 31, the water inlet unidirectional valve clack 32 is jacked to enter the pressurizing cavity 08 from the water inlet hole 33, then the volume of the pressurizing cavity 08 is reduced, water in the pressurizing cavity 08 is extruded and jacked to enter the high-pressure cavity 35 from the water outlet hole 36, the water passing port 12 is formed in the side wall of the high-pressure cavity 35, pressurized water in the high-pressure cavity 35 enters the water passing cavity 34, the water pressure in the water passing cavity 34 cannot overcome the elasticity of the first restoring spring 19 and the pressure in the first air cavity 37 at the moment, but the water passing cavity 34 can overcome the elasticity of the second restoring spring 22 and the pressure in the second air cavity 38, the second control rod 24 moves upwards until the water at the upper end of the second control rod 08 is jacked and jacked to enter the high-pressure cavity 35, the water passing through the water outlet hole 28 is lower than the water outlet hole 28, and the water passing through the water outlet hole 28 is more than the water outlet hole 28, and the water outlet hole 28 is more completely, and the water is discharged from the water outlet hole 28, and has the water flowing through the water outlet hole 8. If the working voltage of the motor 01 is changed, the rotation speed of the motor 01 is increased, the water quantity in the water passing cavity 34 is increased, the water pressure in the water passing cavity 34 is increased, the upward moving distance of the first control rod 17 and the second control rod 24 is increased, after the upward moving distance of the first control rod 17 is increased, the distance between the second sealing ring 16 and the first limiting groove 13 is also increased, the water flow entering the backflow cavity 40 is basically unchanged after the upward moving distance of the second control rod 24 is increased, at the moment, the water flow output from the water outlet 11 is increased, when the working voltage of the motor 01 is further increased, the sealing plug 29 is moved into the fourth sealing ring 25, the water path between the water passing cavity 34 and the backflow cavity 40 is blocked by the fourth sealing ring 25, backflow is stopped, at the moment, the upward moving distance of the first control rod 17 is also up to be maximum, at the moment, the distance between the first limiting groove 13 and the second sealing ring 16 is maximum, at the moment, the water in the water passing cavity 34 completely enters the water outlet cavity 39 through the first limiting groove 13, the water outlet 11 is output flow is maximum, and the dynamic diaphragm flow of the water outlet can be regulated by regulating the working voltage.

The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a diaphragm pump with dynamic adjustment flow function, includes pump head body (14), is equipped with water inlet (30), delivery port (11), water inlet cavity (31), play water cavity (39) in pump head body (14), delivery port (11) are put through with play water cavity (39), are equipped with pump water subassembly on the water route between water inlet cavity (31) and water cavity (39) with water cavity (31) switch-on, are connected with drive arrangement on the pump water subassembly, a serial communication port, still be equipped with high-pressure chamber (35) of mutual switch-on in pump head body (14), cross water cavity (34) and with water inlet (30) return flow chamber (40) of switch-on, be equipped with the accuse flow subassembly of the water flow of passing through regulation operating voltage control between water cavity (34) and delivery port (11) on the water route of switch-on between water cavity (34) and water inlet (30), be equipped with the return flow subassembly of flow through regulation operating voltage control return flow.

2. The diaphragm pump with the dynamic flow regulating function according to claim 1, wherein the pump head body (14) is provided with a pump cover (21) which is connected and matched with the upper end in a sealing way, a first air cavity (37) and a second air cavity (38) are formed between the pump cover (21) and the pump head body (14), the pump cover (21) is provided with an atmospheric hole (20) which is communicated with the first air cavity (37) and the second air cavity (38) at the same time, the first air cavity (37) is used for installing a flow control assembly, and the second air cavity (38) is used for installing a backflow assembly.

3. The diaphragm pump with the dynamic flow regulating function according to claim 2, wherein the flow control assembly comprises a first reset spring (19) and a first control rod (17), the upper end of the first control rod (17) is in sealing and sliding connection with the inner wall of the first air cavity (37), the lower end of the first control rod (17) is in sliding connection with the water outlet cavity (39), a first flow limiting groove (13) is arranged on the side wall of the lower portion of the first control rod (17), the first flow limiting groove (13) is obliquely arranged along the length direction of the first control rod (17), one end of the first reset spring (19) acts on the pump cover (21), the other end of the first reset spring acts on the first control rod (17), and the first control rod (17) forms the flow control assembly for controlling the flow of water under the combined action of air pressure in the first air cavity (37), water pressure of the water outlet cavity (34) and the first reset spring (19).

4. A diaphragm pump with dynamic flow regulating function according to claim 3, wherein the first control rod (17) is circumferentially embedded with a first sealing ring (18), and the first sealing ring (18) is tightly sealed between the first control rod (17) and the inner wall of the first air cavity (37).

5. A diaphragm pump with a flow dynamic regulation function according to claim 3, characterized in that the side surface of the first control rod (17) is provided with a second sealing ring (16) embedded in the pump head body (14), the upper end of the second sealing ring (16) is tightly pressed with a pressing collar (26), the second sealing ring (16) is close to the upper end position of the first flow limiting groove (13), and the change of the outlet flow is controlled by the change of the distance between the second sealing ring (16) and the first flow limiting groove (13).

6. The diaphragm pump with the function of dynamically adjusting the flow according to claim 2, wherein the backflow component comprises a second return spring (22) and a second control rod (24), the upper end of the second control rod (24) is in sealing and sliding connection with the inner wall of the second air cavity (38), the lower end of the second control rod (24) is in sliding connection with the backflow cavity (40), the bottom end of the second control rod (24) is connected with a blocking plug (29), a second flow limiting groove (28) positioned above the blocking plug (29) is arranged on the side wall of the second control rod (24), one end of the second return spring (22) acts on the pump cover (21), the other end of the second return spring acts on the second control rod (24), and the second control rod (24) forms the backflow component for controlling the backflow flow under the combined actions of air pressure in the second air cavity (38), water pressure of the water passing cavity (34) and the second return spring (22).

7. The diaphragm pump with the function of dynamically adjusting flow according to claim 6, wherein a third sealing ring (23) is circumferentially embedded in the second control rod (24), and the third sealing ring (23) is tightly pressed between the sealing ring and the inner wall of the second air cavity (38) and the second control rod (24).

8. The diaphragm pump with the dynamic flow regulating function according to claim 6, wherein a fourth sealing ring (25) embedded in the pump head body (14) is arranged on the side face of the second control rod (24), a pressing collar (26) is pressed at the upper end of the fourth sealing ring (25), and the fourth sealing ring (25) is located above the second flow limiting groove (28).

9. The diaphragm pump with the dynamic flow adjusting function according to claim 1, wherein a partition plate (09), a first support (07) and a second support (05) are arranged at the lower end of the pump head body (14), an installation cavity for installing a pumping assembly is formed by the first support (07), the second support (05) and the partition plate (09), a sealing gasket (10) is tightly pressed between the partition plate (09) and the circumference of the pump head body (14), and a driving device is a motor (01) and is installed at the bottom end of the second support (05).

10. The diaphragm pump with the dynamic flow regulating function according to claim 9, wherein the pump water component comprises a pressurizing diaphragm (06), a pushing frame (04), an eccentric shaft (03) and an eccentric seat (02), the pressurizing diaphragm (06) is circumferentially sealed and pressed between a partition plate (09) and a first bracket (07), a pressurizing cavity (08) is formed between the pressurizing diaphragm (06) and the partition plate (09), a water channel communicated with the pressurizing cavity (08) is provided with a water inlet one-way valve clack (32) fixed on the partition plate (09), a water outlet one-way film (27) pressed between a pump head body (14) and the partition plate (09) is arranged between the pressurizing cavity (08) and the high-pressure cavity (35), a water inlet hole (33) positioned at the water inlet one-way valve clack (32) and a water outlet hole (36) positioned at the water outlet one-way film (27) are arranged on the partition plate (09), the lower end of the pressurizing diaphragm (06) is connected with the pushing frame (04), the output end of the motor (01) is connected with the eccentric seat (02), and the upper end of the eccentric shaft (03) is connected with the lower end of the eccentric seat (03).

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