All-plastic micro-small-caliber electromagnetic flowmeter

Abstract

The utility model discloses an all-plastic micro-small-caliber electromagnetic flowmeter which comprises a shell, a flow sensing assembly is arranged in the shell and comprises a fluid pipe, a liquid inlet pipe and a liquid outlet pipe are arranged at the two ends of the fluid pipe respectively, a fluid channel is formed in the center of the fluid pipe, and the two ends of the fluid channel are connected with a liquid inlet and the liquid outlet pipe respectively. A magnet yoke mounting frame is arranged in the middle of the fluid pipe, an upper magnet yoke and a lower magnet yoke are arranged on the magnet yoke mounting frame, first inductive head mounting holes are formed in the left side and the right side of the fluid pipe in the liquid flowing direction, first inductive heads are arranged in the first inductive head mounting holes, and second inductive head mounting holes are formed in the upper side and the lower side of the fluid pipe in the liquid flowing direction respectively. And a second inductive head is arranged in the second inductive head mounting hole. The beneficial effects of the utility model are that: can measure the liquid of slight small flow, has improved the measurement precision, has insulating, corrosion-resistant, waterproof advantage such as, has improved the life of product.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic metering instrument technical field, concretely is a kind of all-plastic small caliber electromagnetic flowmeter. BACKGROUND

[0002] Electromagnetic flowmeter is applied electromagnetic induction principle, according to the electromotive force of the induced current fluid through additional magnetic field to measure the flow of conductive fluid. It is widely used in water meter and other metering instruments.

[0003] The existing electromagnetic flowmeter, due to the body is larger, it is more to occupy installation space therefore usually an electromagnetic flowmeter needs a separate installation box, in addition, magnetic coil and water flow are not compact enough, and the induction of magnetic field to water flow sometimes is not sensitive enough, so that the precision of electromagnetic flowmeter is reduced, in addition, the existing electromagnetic metering instrument is usually made of metal material, and the metal material can interfere with electromagnetic field, so as to affect the sensitivity of electromagnetic metering instrument during work. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of all-plastic small caliber electromagnetic flowmeter to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of all-plastic small caliber electromagnetic flowmeter, including shell, flow sensing assembly is equipped in the shell, the flow sensing assembly includes fluid pipe, the two ends of the fluid pipe are equipped with liquid inlet pipe and liquid outlet pipe respectively, the center of the fluid pipe is equipped with fluid passage, the two ends of the fluid passage are connected with liquid inlet and liquid outlet pipe respectively, the middle position of the fluid pipe is equipped with magnetic yoke mounting bracket, the magnetic yoke mounting bracket is equipped with upper magnetic yoke and lower magnetic yoke, the left and right sides of the fluid pipe along liquid flow direction is equipped with first sensing head mounting hole, the first sensing head mounting hole is equipped with first sensing head, the upper and lower sides of the fluid pipe along liquid flow direction are equipped with second sensing head mounting hole respectively, the second sensing head mounting hole is equipped with second sensing head.

[0006] Preferably, the left and right sides of the shell along the flow direction of fluid passage are equipped with circuit board mounting groove, the circuit board mounting groove is equipped with circuit board, and one of the circuit boards is provided with a USB interface.

[0007] Preferably, the upper end of the shell is equipped with control panel, the control panel is equipped with display screen and touch button.

[0008] Preferably, the bottom end of the shell is equipped with bottom shell, the upper end of the shell is also equipped with upper shell, and the display screen and touch button are embedded in the upper shell.

[0009] Preferably, the fluid channel comprises a contraction part, a throat part and a diffusion part, the first sensing head is installed on the throat part, and the second sensing heads are respectively installed on the contraction part and the diffusion part.

[0010] Preferably, the shell, the fluid pipe and the magnetic yoke mounting frame are integrally formed by using polyether ether ketone material.

[0011] Preferably, the outer side wall of the shell is provided with a fluid indication arrow.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is integrally provided with the fluid pipe and the magnetic yoke mounting frame, and a plurality of sensing heads are arranged on the fluid pipe, the upper magnetic yoke and the lower magnetic yoke are combined, so that the utility model can measure the liquid with slight and small flow, and the measurement precision is improved; the utility model is integrally formed by using peek material, so that the utility model has the advantages of insulation, corrosion resistance and waterproof, and the service life of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a control panel structural schematic view of the utility model;

[0015] Figure 3 It is a fluid pipe structural schematic view of the utility model;

[0016] Figure 4 It is a magnetic yoke mounting frame structural schematic view of the utility model;

[0017] Figure 5 It is a sectional view of the utility model.

[0018] In the drawing: 1, shell; 11, circuit board mounting groove; 12, circuit board; 13, navigation plug; 14, control panel; 15, display screen; 16, touch button; 17, bottom shell; 18, upper shell; 2, fluid pipe; 21, first sensing head mounting hole; 22, first sensing head; 23, second sensing head mounting hole; 24, second sensing head; 3, liquid inlet pipe; 4, liquid outlet pipe; 5, fluid channel; 51, contraction part; 52, throat part; 53, diffusion part; 6, magnetic yoke mounting frame; 61, upper magnetic yoke; 62, lower magnetic yoke. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1 to 5 The utility model provides a technical scheme: a kind of full plastic small caliber electromagnetic flowmeter, shell 1 is equipped with flow sensing assembly in shell 1, flow sensing assembly includes fluid pipe 2, fluid pipe 2 two ends are equipped with liquid inlet pipe 3 and liquid outlet pipe 4 respectively, the inner wall of shell 1 is connected with the two ends of fluid pipe 2, liquid inlet pipe 3 and liquid outlet pipe 4 extend outwardly through shell 1, the outer wall of liquid inlet pipe 3 and liquid outlet pipe 4 is equipped with thread, the periphery of the connecting portion of liquid inlet pipe 3 and liquid outlet pipe 4 with shell 1 is equipped with reinforcing portion, the center of fluid pipe 2 is equipped with fluid passage 5, fluid passage 5 two ends are connected with liquid inlet pipe 3 and liquid outlet pipe 4 respectively, liquid passes through liquid inlet pipe 3 and then flows out through liquid outlet pipe 4, fluid passage 5 includes contraction part 51, throat part 52 and diffusion part 53, liquid passes through contraction part 51 and makes fluid accelerate, and fluid reaches higher flow rate in the last section of contraction part 51, the middle position of fluid pipe 2 is equipped with magnetic yoke mounting bracket 6, magnetic yoke mounting bracket 6 is equipped with upper magnetic yoke 61 and lower magnetic yoke 62, the left and right sides of fluid pipe 2 along liquid flow direction are equipped with first sensing head mounting hole 21, first sensing head 22 is equipped in first sensing head mounting hole 21, the upper and lower sides of fluid pipe 2 along liquid flow direction are equipped with second sensing head mounting hole 23 respectively, second sensing head 24 is equipped in second sensing head mounting hole 23. Specifically, first sensing head 22 is installed in throat part 52, and second sensing head 24 is installed in contraction part 51 and diffusion part 53 respectively.

[0021] In an embodiment of the utility model, the left and right sides of shell 1 along the flow direction of fluid passage are equipped with circuit board mounting groove 11, circuit board 12 is equipped in circuit board mounting groove 11, and one of circuit board 12 is equipped with jack 13. Jack 13 adopts thread type, ensures that connection is firm and reliable, is convenient for operation, has good sealing line simultaneously, can adapt to severe environment, and also can ensure that circuit board 12 in shell 1 is not influenced by dust, moisture or oil stain.

[0022] In an embodiment of the utility model, the upper end of shell 1 is equipped with control panel 14, and display screen 15 and touch button 16 are equipped on control panel 14. Touch button 16 works based on the principle of capacitance sensing or resistance sensing. When human body touches the surface of button, the electric field or resistance value around the button will change, and the sensor detects this change and converts it into an electrical signal, which is transmitted to the control circuit on the control panel 14. The control circuit determines whether a touch operation has occurred based on the received signal and performs the corresponding control action, such as turning on or off the device, adjusting the parameters, etc.

[0023] In one embodiment of the utility model, the bottom end of the shell 1 is provided with a bottom shell 17, the upper end of the shell 1 is also provided with an upper shell 18, the display screen 15 and the touch button 16 are embedded in the upper shell 17, the upper shell 17 is also provided with a convex rectangular protective cover made of transparent material, which can seal and protect the display screen 15.

[0024] In one embodiment of the utility model, the shell 1, the fluid pipe 2 and the magnetic yoke mounting frame 6 are integrally formed by using polyether ether ketone (peek) material.

[0025] In one embodiment of the utility model, the outer side wall of the shell 1 is provided with a fluid indicating arrow, which is convenient for installation during use.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An all-plastic micro-sized electromagnetic flowmeter comprising a housing, characterized in that: The shell is internally provided with a flow sensing assembly, which comprises a fluid pipe, two ends of the fluid pipe are respectively provided with an inlet pipe and an outlet pipe, a fluid channel is arranged in the center of the fluid pipe, two ends of the fluid channel are respectively connected with the inlet pipe and the outlet pipe, a magnetic yoke mounting rack is arranged at the middle position of the fluid pipe, an upper magnetic yoke and a lower magnetic yoke are arranged on the magnetic yoke mounting rack, first sensing head mounting holes are arranged on the left and right sides of the fluid pipe along the liquid flow direction, first sensing heads are arranged in the first sensing head mounting holes, second sensing head mounting holes are arranged on the upper and lower sides of the fluid pipe along the liquid flow direction, and second sensing heads are arranged in the second sensing head mounting holes.

2. A fully plastic electromagnetic flowmeter of small diameter according to claim 1, characterized in that: The shell is internally provided with circuit board mounting grooves on the left and right sides along the fluid channel flow direction, the circuit board mounting grooves are internally provided with circuit boards, and one of the circuit boards is provided with a USB plug.

3. A fully plastic low profile electromagnetic flowmeter according to claim 2, wherein: The upper end of the shell is provided with a control panel, the control panel is provided with a display screen and touch buttons.

4. A fully plastic low profile electromagnetic flowmeter according to claim 3, wherein: The bottom end of the shell is provided with a bottom shell, the upper end of the shell is further provided with an upper shell, and the display screen and the touch buttons are embedded in the upper shell.

5. A fully plastic low profile electromagnetic flowmeter according to claim 4 wherein: The fluid channel comprises a contraction part, a throat part and a diffusion part, the first sensing head is mounted on the throat part, and the second sensing heads are respectively mounted on the contraction part and the diffusion part.

6. A fully plastic low profile electromagnetic flowmeter according to claim 5 wherein: The shell, the fluid pipe and the magnetic yoke mounting rack are integrally formed by using polyether ether ketone material.

7. A fully plastic low profile electromagnetic flowmeter according to claim 6 wherein: The outer side wall of the shell is provided with a fluid indication arrow.

Images