CN217421450U

CN217421450U - Miniature accurate measuring pump

Info

Publication number: CN217421450U
Application number: CN202220169273.9U
Authority: CN
Inventors: 聂鹏举; 伍双喜; 郭谦永; 邱文生; 陈伟志
Original assignee: Shenzhen Collier Pump Co ltd
Current assignee: Shenzhen Collier Pump Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-09-13
Anticipated expiration: 2032-01-21

Abstract

The utility model provides a miniature accurate measuring pump, including motor, pump water mechanism, inlet tube, outlet pipe, at the delivery port of the especially diaphragm pump of pump, design a built-in miniature flowmeter, through the delivery port of aperture size unanimity, rivers promote the rotor and rotate (rotor encapsulating rubber magnet), the rotor is invariable for the round flow of revolving, and signal (pulse) can be collected to hall chip when the rotor on the round side PCB control panel of revolving, and the user can set up the pulse signal that needs through the main control panel to play the control flow size. The following beneficial effects can be brought in: the design of a flowmeter arranged in the water outlet enables the flow to be more accurate and the repeatability to be good, and meets the requirements of high-end customers; the product is integrated and modularized, and is convenient to install; the pipeline can be simplified, and the cost is reduced.

Description

Miniature accurate measuring pump

Technical Field

The utility model relates to a micropump class equipment technical field, in particular to miniature accurate measuring pump.

Background

Diaphragm pumps are a means of transporting or applying pressure to a liquid (water). Various diaphragm pumps in the market at present are various in form, are uneven, mostly stop in the aspect that has the function of drawing water, because the flow can receive diaphragm hardness and all ring edge border temperature variation and change (the flow variation value is more than 10%), can only satisfy general user's basic demand: some users with higher demands on the flow repeatability have difficulty finding a suitable pump. For example, the coffee machine industry has a high requirement on the flow precision of a water pump (the flow change value is within 3%), so that the flow precision requirement is difficult to achieve by adopting the existing diaphragm pump in the market, and a flow meter needs to be additionally added for use by a customer, so that the cost of complex equipment of a pipeline is increased, and the external flow meter is unstable.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a miniature accurate measuring pump, to prior art's problem, increases the measurement subassembly in outlet pipe department design, solves current technical problem.

The utility model aims at realizing through the following technical scheme:

the utility model provides a miniature accurate measuring pump, includes motor, pump water mechanism, inlet tube, outlet pipe, pump water mechanism passes through the base to be fixed on the motor, inlet tube, outlet pipe set up and communicate pump water mechanism, and importantly, the outlet pipe is provided with the measurement mounting box with upper cover intercommunication middle section, be provided with the measurement subassembly in the measurement mounting box.

Further, the water inlet pipe is arranged on the side surface of the upper cover and communicated with the cavity in the upper cover.

Furthermore, the water outlet pipe is arranged in the middle of the top surface of the upper cover and communicated with the cavity in the upper cover.

Further, the upper cover is provided with a steering boss at the position communicated with the water outlet pipe, a right-angle through hole communicated with the water outlet pipe communicated port is formed in the steering boss, and a rotor mounting platform is arranged in front of a water outlet of the steering boss.

Furthermore, the metering installation box is a box body with an opening at the lower end, the shape of the box body is matched with the shape of the sealing cover to cover the steering boss and the rotor installation platform and to be fixed on the top surface of the upper cover, the front end of the box body and the rotor installation platform form a metering component installation cavity, and the front end wall of the box body is communicated with the fixed water outlet pipe.

Furthermore, the metering component is a Hall meter and comprises a rotor, a Hall chip and a PCB control panel, the rotor rotating shaft is arranged at the front end of the box body and forms a metering component mounting cavity with the rotor mounting platform, and the Hall chip and the PCB control panel are arranged on the side edge of the rotor and fixed in the metering mounting box; the Hall chip is electrically connected with the PCB control board; the inside rubber coating magnet of rotor, the rotor side is provided with the flabellum of perpendicular water outlet direction.

Further, the PCB control board is electrically connected with the outlet terminal through a lead penetrating through the metering installation box.

The water pumping mechanism is a diaphragm water pumping mechanism and comprises an oblique angle eccentric wheel, an extrusion connecting rod, a diaphragm support, a diaphragm, a small umbrella-shaped valve, a valve support and a large umbrella-shaped valve, wherein a vertical hole of the oblique angle eccentric wheel is fixed on a motor transmission shaft, the extrusion connecting rod is fixed in an oblique hole of the oblique angle eccentric wheel through a central shaft, the extrusion connecting rod is provided with three extrusion handles which are over against three diaphragm cavities at the lower part of the diaphragm, the three diaphragm cavities of the diaphragm are fixed by penetrating through the diaphragm support, the small umbrella-shaped valve is provided with three diaphragm cavities which are over against the valve support, and the large umbrella-shaped valve is arranged in the center of the valve support; the cavity in the upper cover is provided with a concave curved surface step which is divided into an outer ring water inlet part and an inner ring water outlet part, the outer ring water inlet part is communicated with the water inlet pipe and is opposite to the three small umbrella-shaped valves, and the inner ring water outlet part is communicated with the water outlet pipe and is opposite to the large umbrella-shaped valve.

The beneficial effects of the utility model reside in that:

the utility model designs a built-in micro flowmeter at the water outlet of the pump, especially the diaphragm pump, through the water outlet with the same aperture size, the water flow pushes the rotor to rotate (the magnet is encapsulated in the rotor), the flow rate is constant in each circle of the rotor, and when the Hall chip on the PCB control board at the side of each circle of the rotor collects a signal (pulse); the user can set the required pulse signal through the main control panel, thereby playing the role of controlling the flow. The following beneficial effects can be brought in: 1. the design of a flowmeter arranged in the water outlet enables the flow to be more accurate and the repeatability to be good, and meets the requirements of high-end customers; 2. the product is integrated and modularized, and is convenient to install; 3. can simplify the pipeline, reduce the cost and has market competitiveness.

Drawings

FIG. 1 is a schematic view of a miniature precision metering pump according to the present invention;

FIG. 2 is a schematic view of the miniature precision metering pump according to the present invention;

fig. 3 is the utility model discloses well miniature accurate measuring pump upper cover local schematic diagram.

The reference numerals are explained below:

the water meter comprises a motor 1, a water pumping mechanism 2, a water inlet pipe 3, a water outlet pipe 4, a base 5, an upper cover 6, a metering mounting box 7, a metering component 8, a steering boss 601, a rotor mounting table 602, a concave curved step 603, a water inlet part 604 on the outer ring, a water outlet part 605 on the inner ring, a rotor 801, a Hall chip 802, a PCB control board 803, a fan blade 804, a lead 805, an outlet terminal 806, an oblique angle eccentric wheel 201, an extrusion connecting rod 202, a diaphragm support 203, a diaphragm 204, a small umbrella-shaped valve 205, a valve support 206, a large umbrella-shaped valve 207, an extrusion handle 208 and a diaphragm cavity 209.

Detailed Description

The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In order to make the flow more accurate, the product integration modularization, the utility model discloses specific content is as follows shows.

As shown in fig. 1, an embodiment of the present invention is a miniature precision metering pump, which includes a motor 1, a water pumping mechanism 2, a water inlet pipe 3, and a water outlet pipe 4, wherein the water pumping mechanism 2 is fixed on the motor 1 through a base 5, the water inlet pipe 3 and the water outlet pipe 4 are arranged on an upper cover 6 and are communicated with the water pumping mechanism 2, which is a basic design of a pump body, and the motor 1 drives the water pumping mechanism 2 to generate water pumping pressure;

importantly, be provided with measurement mounting box 7 in

outlet pipe

4 and 6 intercommunication middle sections of upper cover, be provided with measurement subassembly 8 in the measurement mounting box 7, the design of the built-in flowmeter of delivery port for the flow is more accurate, and good reproducibility satisfies high-end customer's demand, and can the modularization, it is more convenient to install.

Wherein, inlet tube 3 sets up the inside cavity of 6 intercommunications upper cover in 6 sides on the upper cover, and outlet pipe 4 sets up the inside cavity of 6 top surfaces middle part intercommunications upper cover in upper cover 6.

In a possible embodiment, as shown in fig. 2 and 3, the upper cover 6 is provided with a steering boss 601 at a communication port with the water outlet pipe 4, a right-angle through hole is formed in the steering boss 601 to communicate with the water outlet pipe communication port, and a rotor mounting table 602 is arranged in front of a water outlet of the steering boss 601.

Meanwhile, the metering installation box 7 is a box body with an opening at the lower end, the shape of the box body is matched with that of the rotor installation platform 602 to hermetically cover the steering boss 601 and the rotor installation platform 602 and to be fixed on the top surface of the upper cover 6, the front end of the box body and the rotor installation platform 602 form a metering component installation cavity 701, and the front end wall of the box body is communicated with the fixed water outlet pipe 4, so that the metering component 8 is conveniently installed in a modularized mode.

In a possible embodiment, as shown in fig. 2, the metering component 8 is a hall meter, and includes a rotor 801, a hall chip 802, and a PCB control board 803, the rotor 801 is disposed at the front end of the box body to form a metering component mounting cavity 701 with the rotor mounting table 602, the hall chip 802, and the PCB control board 803 are disposed at the side edge of the rotor 801 to be fixed in the metering mounting box 7; the hall chip 802 is electrically connected with the PCB control board 803; the inside of the rotor 801 is coated with magnets, the side surface of the rotor 801 is provided with blades 804 vertical to the water outlet direction, and the blades 804 are generally at least three; water flow pushes the rotor 801 to rotate, the flow of the rotor 801 is constant in each rotation, when the Hall chip 802 on the PCB control board 803 is capable of collecting signals (pulses) in each rotation, a user can set required pulse signals through the main control board, and therefore the flow control is achieved.

The PCB control board 803 is electrically connected to the outlet terminal 806 through a wire 805 passing through the metering mounting box 7, and is used for accessing power supply and transmitting a metering signal to the outside.

In one possible embodiment, as shown in fig. 2, the water pumping mechanism 2 is a diaphragm water pumping mechanism, and comprises a bevel eccentric 201, a squeezing link 202, a diaphragm support 203, a diaphragm 204, a small umbrella valve 205, a valve support 206, and a large umbrella valve 207;

the vertical hole of the bevel eccentric wheel 201 is fixed on the transmission shaft of the motor 1, the extrusion connecting rod 202 is fixed in the bevel hole of the bevel eccentric wheel 201 through a central shaft, the extrusion connecting rod 202 is provided with three extrusion handles 208 which are opposite to three membrane cavities 209 at the lower part of the membrane 204, thus the extrusion connecting rod 202 is driven by the motor 1 to deviate from the center to move up and down and rotate through the bevel eccentric wheel 201, and the three extrusion handles 208 can alternatively extrude the three membrane cavities 209 to generate pressure;

the three diaphragm cavities 209 of the diaphragm 204 are fixed by penetrating through the diaphragm support 203, and the small umbrella-shaped valve 205 is provided with three parts which penetrate through the valve support 206 and are opposite to the three diaphragm cavities 209 and seal the diaphragm cavities 209 when not being squeezed;

the large umbrella-shaped valve 207 is arranged in the center of the valve bracket 206, covers the extrusion groove and plays a role in one-way pressure water outlet;

the cavity in the upper cover 6 is provided with a concave curved surface step 603 which is divided into an outer ring water inlet part 604 and an inner ring water outlet part 605, the outer ring water inlet part 604 is communicated with the water inlet pipe 3 and is opposite to the extrusion position of three small umbrella-shaped valves 205, namely the diaphragm cavity 209, the inner ring water outlet part 605 is communicated with the water outlet pipe 4 and is opposite to the large umbrella-shaped valve 207, namely the water outlet channel, and the water pumping pressure direction is formed by matching with the water pumping mechanism 2.

The above description is for illustrative purposes only and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. that do not depart from the spirit and principles of the present invention should be construed as within the scope of the present invention.

Claims

1. The utility model provides a miniature accurate measuring pump, includes motor, pump water mechanism, inlet tube, outlet pipe, pump water mechanism passes through the base to be fixed on the motor, inlet tube, outlet pipe setting intercommunication pump water mechanism, its characterized in that on covering: the water outlet pipe is communicated with the upper cover, a metering installation box is arranged in the middle section of the upper cover, and a metering assembly is arranged in the metering installation box.

2. The miniature precision metering pump of claim 1, wherein: the inlet tube sets up the inside cavity of upper cover in upper cover side intercommunication.

3. The miniature precision metering pump of claim 1, wherein: the water outlet pipe is arranged in the middle of the top surface of the upper cover and communicated with the cavity in the upper cover.

4. The miniature precision metering pump of claim 1, wherein: the upper cover is provided with a steering boss at the position communicated with the water outlet pipe, a right-angle through hole communicated with the water outlet pipe communicating port is formed in the steering boss, and a rotor mounting platform is arranged in front of a water outlet of the steering boss.

5. The miniature precision metering pump of claim 1, wherein: the metering installation box is a box body with an opening at the lower end, the shape of the box body is matched with the shape of the sealing cover to cover the steering boss and the rotor installation platform and to be fixed on the top surface of the upper cover, the front end of the box body and the rotor installation platform form a metering component installation cavity, and the front end wall of the box body is communicated with the fixed water outlet pipe.

6. The miniature precision metering pump of claim 1, wherein: the metering assembly is a Hall meter and comprises a rotor, a Hall chip and a PCB control panel, the rotor rotating shaft is arranged in a metering assembly mounting cavity formed by the front end of the box body and the rotor mounting platform, and the Hall chip and the PCB control panel are arranged on the side edge of the rotor and fixed in the metering mounting box; the Hall chip is electrically connected with the PCB control board; the inside rubber coating magnet of rotor, the rotor side is provided with the flabellum of perpendicular water outlet direction.

7. The miniature precision metering pump of claim 6, wherein: the PCB control board is electrically connected with the wire outlet terminal through a lead penetrating through the metering installation box.

8. The miniature precision metering pump of claim 1, wherein: the water pumping mechanism is a diaphragm water pumping mechanism and comprises an oblique angle eccentric wheel, an extrusion connecting rod, a diaphragm support, a diaphragm, a small umbrella-shaped valve, a valve support and a large umbrella-shaped valve, wherein a vertical hole of the oblique angle eccentric wheel is fixed on a motor transmission shaft, the extrusion connecting rod is fixed in an oblique hole of the oblique angle eccentric wheel through a central shaft, the extrusion connecting rod is provided with three extrusion handles which are over against three diaphragm cavities at the lower part of the diaphragm, the three diaphragm cavities of the diaphragm are fixed by penetrating through the diaphragm support, the small umbrella-shaped valve is provided with three diaphragm cavities which are over against the valve support, and the large umbrella-shaped valve is arranged in the center of the valve support; the cavity in the upper cover is provided with a concave curved surface step which is divided into an outer ring water inlet part and an inner ring water outlet part, the outer ring water inlet part is communicated with the water inlet pipe and is just opposite to the three small umbrella-shaped valves, and the inner ring water outlet part is communicated with the water outlet pipe and is just opposite to the large umbrella-shaped valve.