Magnetic flowmeter

Abstract

The utility model relates to a magnetic flowmeter which comprises a pool body and a motor, a longitudinal partition plate is arranged in the pool body and divides the interior of the pool body into a liquid taking bin and a liquid outlet bin, a motor shaft of the motor extends into the liquid taking bin, a rotating arm is installed on the motor shaft of the motor, two ends of the rotating arm are respectively hinged with a group of measuring cup frames, and each group of measuring cup frames is hinged with a measuring cup. A magnet mounting plate is mounted on one side, close to the motor, of the measuring cup, and two first permanent magnets are mounted on the magnet mounting plate; the middle of the top end of the longitudinal partition plate is fixedly connected with a flow guide plate extending towards the position above the liquid taking bin, a main baffle vertically extending upwards is arranged at the end, close to the motor, of the flow guide plate, and two second permanent magnets are installed on the main baffle. When the opening of the measuring cup faces upwards, the magnetic pole directions of the two first permanent magnets are the same as those of the two second permanent magnets respectively. The measuring cup has the advantages that the rotating angle of the measuring cup is easy to control, liquid spilled out when the measuring cup rotates falls onto the flow guide plate and flows into the liquid outlet bin, and the liquid is prevented from being spilled into the liquid taking bin.

Description

Technical Field

[0001] The utility model relates to the field of flow meters, in particular to a magnetic flow meter. Background Art

[0002] In the patent application number 200520133564.9, a waterwheel type flow meter is applied, including a flow box, a float valve liquid level stabilizing device, and a transmission device. The flow meter box is divided into a transmission chamber, a waterwheel chamber, and a float valve chamber. The transmission chamber is provided with a transmission device, the waterwheel chamber is provided with a liquid outlet chamber, and a liquid outlet is provided below the liquid outlet chamber. The waterwheel is placed in the waterwheel chamber, and a supporting shaft is provided on the waterwheel turntable. The liquid collector is installed on the supporting shaft and is positioned by a nut or a pin. The lever is provided on the inner wall of the waterwheel chamber and is opposite to the liquid collector placed on the turntable. When the liquid collector moves to the top of the liquid outlet chamber, the lever is just at the bottom of the liquid collector. A through hole is opened on the partition between the waterwheel chamber and the float valve chamber, a float valve liquid level stabilizing device is provided in the float valve chamber, and a liquid inlet is provided on the float valve chamber.

[0003] In the above-mentioned waterwheel flowmeter device, the liquid in the liquid collector is triggered by a lever, and the liquid collector needs to be rotated 90° to pour the liquid in the liquid collector into the liquid outlet chamber. The rotation angle of the liquid collector is difficult to control, which may easily lead to the incorrect rotation angle of the liquid collector causing part of the liquid to spill into the waterwheel chamber. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a magnetic flowmeter.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A magnetic flowmeter comprises a pool body and a motor, wherein a longitudinal partition is arranged in the pool body to divide the interior of the pool body into a liquid collection bin and a liquid discharge bin, the motor shaft of the motor extends into the liquid collection bin, a rotating arm is mounted on the motor shaft of the motor, two ends of the rotating arm are respectively hinged to a group of measuring cup racks, each group of the measuring cup racks is hinged to a measuring cup, a magnet mounting plate is mounted on the side of the measuring cup close to the motor, two first permanent magnets which are parallel up and down and have opposite magnetic pole directions are mounted on the magnet mounting plate; a guide plate extending toward the top of the liquid collection bin is fixedly connected to the middle part of the top of the longitudinal partition, and a main baffle extending vertically upward is arranged on the end of the guide plate close to the motor, and two second permanent magnets which are parallel up and down and have opposite magnetic pole directions are mounted on the main baffle; when the opening of the measuring cup faces upward, the magnetic pole directions of the two first permanent magnets are respectively the same as the magnetic pole directions of the two second permanent magnets.

[0007] Among them, the measuring cup rack includes an L-shaped rotating shaft and a U-shaped plate, a ball bearing is installed at each end of the rotating arm, the first end of the rotating shaft is installed in the inner ring of the ball bearing, the second end of the rotating shaft is fixedly connected to the top center of the U-shaped plate, and two symmetrical hinge columns are arranged on the outside of the measuring cup, and the two hinge columns are respectively hinged to the hinge holes opened on the two side walls of the U-shaped plate.

[0008] Wherein, the magnet mounting plate is mounted on one of the hinged columns.

[0009] Wherein, one end of the guide plate fixed to the longitudinal partition is lower than the end of the guide plate close to the motor.

[0010] Wherein, a side baffle is fixedly connected to both sides of the guide plate to prevent liquid from flowing into the liquid collection bin from both sides of the guide plate.

[0011] Among them, a "ㄣ"-shaped frame is installed between the guide plate, the main baffle and the longitudinal partition.

[0012] The bottom of the liquid collection bin is in the shape of a semicircular ring, and the central axis of the circular ring corresponding to the bottom of the liquid collection bin is coaxial with the motor shaft of the motor.

[0013] The bottom of the liquid outlet bin is in a semicircular shape, a liquid outlet pipe connected to the liquid outlet bin is provided at one end of the liquid outlet bin, and the central axis of the circular ring corresponding to the bottom of the liquid outlet bin is coaxial with the central axis of the liquid outlet pipe.

[0014] Wherein, the motor is equipped with an encoder for monitoring the number of rotations of the motor.

[0015] Furthermore, it also includes a motor base, and the motor is installed on the top of the motor base.

[0016] The beneficial effects of the utility model are as follows: a motor drives the rotating arm to rotate, the measuring cup rotates to the bottom of the liquid collection bin to load the liquid, and then the measuring cup moves to above the guide plate, the second permanent magnet cooperates with the first permanent magnet to flip the measuring cup 180 degrees, the liquid in the measuring cup is poured onto the guide plate, the liquid flows into the liquid outlet bin along the guide plate, the rotation angle of the measuring cup is easy to control, the liquid spilled when the measuring cup rotates falls onto the guide plate and flows into the liquid outlet bin, and the liquid is prevented from spilling into the liquid collection bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the magnetic flowmeter in the utility model when the rotating arm is in a vertical state from a first viewing angle;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the magnetic flowmeter in the utility model when the rotating arm is in a vertical state from a second viewing angle;

[0020] Figure 3 It is a schematic diagram of the structure when the rotating arm of the magnetic flowmeter in the utility model is in a horizontal state when viewed from above;

[0021] Figure 4 It is a schematic structural diagram of the assembly of the rotating arm, the measuring cup holder, the measuring cup, the magnet mounting plate and the first permanent magnet in the utility model;

[0022] Figure 5 This is a schematic structural diagram of the assembly of the measuring cup stand, the measuring cup, the magnet mounting plate, and the first permanent magnet in the utility model;

[0023] Figure 6 It is a structural schematic diagram of the medium-volume cup holder of the utility model;

[0024] Explanation of the numbers in the figure: motor base 1, motor 2, pool body 3, liquid collection bin 301, liquid outlet bin 302, liquid outlet pipe 303, longitudinal partition 4, guide plate 401, main baffle 402, side baffle 403, rotating arm 5, ball bearing 501, measuring cup holder 6, rotating shaft 601, U-shaped plate 602, hinge hole 603, measuring cup 7, hinge column 701, magnet mounting plate 8, first permanent magnet 9, second permanent magnet 10, skeleton 11. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] like Figures 1 to 6 As shown, a magnetic flowmeter includes a tank body 3, a motor 2, and a motor base 1. The motor 2 is installed on the top of the motor base 1. A longitudinal partition 4 is provided in the tank body 3 to divide the interior of the tank body 3 into a liquid intake bin 301 and a liquid outlet bin 302. The motor shaft of the motor 2 extends into the liquid intake bin 301; the bin bottom of the liquid intake bin 301 is semicircular, and the central axis of the circular ring corresponding to the bin bottom of the liquid intake bin 301 is coaxial with the motor shaft of the motor 2; the bin bottom of the liquid outlet bin 302 is semicircular, and one end of the liquid outlet bin 302 is provided with a liquid outlet pipe 303 connected to the liquid outlet bin 302, and the central axis of the circular ring corresponding to the bin bottom of the liquid outlet bin 302 is coaxial with the central axis of the liquid outlet pipe 303.

[0027] A rotating arm 5 is installed on the motor shaft of the motor 2, and a group of measuring cup racks 6 are hinged at both ends of the rotating arm 5. The measuring cup racks 6 include an L-shaped rotating shaft 601 and a U-shaped plate 602. A ball bearing 501 is installed at both ends of the rotating arm 5. The first end of the rotating shaft 601 is installed in the inner ring of the ball bearing 501, and the second end of the rotating shaft 601 is fixedly connected to the top center of the U-shaped plate 602.

[0028] A measuring cup 7 is hinged on each measuring cup rack 6 , and two symmetrical hinged columns 701 are arranged on the outer side of the measuring cup 7 . The two hinged columns 701 are hinged to hinged holes 603 provided on the two side walls of the U-shaped plate 602 , respectively.

[0029] A magnet mounting plate 8 is installed on one side of the measuring cup 7 close to the motor 2 , and the magnet mounting plate 8 is installed on one of the hinged columns 701 ; two first permanent magnets 9 which are parallel up and down and have opposite magnetic pole directions are installed on the magnet mounting plate 8 .

[0030] A guide plate 401 extending upward from the liquid collection bin 301 is fixedly connected to the middle of the top of the longitudinal partition 4, and the end of the guide plate 401 fixed to the longitudinal partition 4 is lower than the end of the guide plate 401 close to the motor 2; a main baffle 402 extending vertically upward is provided at the end of the guide plate 401 close to the motor 2, and two second permanent magnets 10 parallel to each other and with opposite magnetic poles are installed on the main baffle 402; a side baffle 403 for preventing liquid from flowing into the liquid collection bin 301 from both sides of the guide plate 401 is fixedly connected to both sides of the guide plate 401, so as to prevent liquid from flowing into the liquid collection bin from both sides of the guide plate 401; a "ㄣ"-shaped skeleton 11 is installed between the guide plate 401, the main baffle 402 and the longitudinal partition 4 to improve the stability of the guide plate 401 and the main baffle 402.

[0031] When the opening of the measuring cup 7 is facing upward, the magnetic pole directions of the two first permanent magnets 9 are respectively the same as the magnetic pole directions of the two second permanent magnets 10. That is, when the opening of the measuring cup 7 is facing upward, the magnetic pole direction of the first permanent magnet 9 located at the top is the same as the magnetic pole direction of the second permanent magnet 10 located at the top, and the magnetic pole direction of the first permanent magnet 9 located at the bottom is the same as the magnetic pole direction of the second permanent magnet 10 located at the bottom.

[0032] Motor 2 is equipped with an encoder for monitoring the number of motor rotations. The encoder is used to monitor the number of motor rotations to calculate the number of times the measuring cup rotates above the guide plate to pour liquid into the liquid outlet bin, and then multiplied by the volume of the measuring cup to calculate the amount of liquid measured.

[0033] The motor drives the rotating arm to rotate, and the measuring cup rotates to the bottom of the liquid collection bin to load the liquid, and then the measuring cup moves to the top of the guide plate, and the second permanent magnet cooperates with the first permanent magnet to flip the measuring cup 180 degrees, and the liquid in the measuring cup is poured onto the guide plate, and the liquid flows into the liquid outlet bin along the guide plate. The rotation angle of the measuring cup is easy to control, and the liquid spilled when the measuring cup rotates falls on the guide plate and flows into the liquid outlet bin, thereby preventing the liquid from spilling into the liquid collection bin.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A magnetic flowmeter, characterized in that: It comprises a pool body and a motor, wherein a longitudinal partition is arranged in the pool body to divide the interior of the pool body into a liquid collection bin and a liquid discharge bin, the motor shaft of the motor extends into the liquid collection bin, a rotating arm is installed on the motor shaft of the motor, and a group of measuring cup racks are hingedly connected at both ends of the rotating arm, and a measuring cup is hingedly connected to each group of measuring cup racks, a magnet mounting plate is installed on the side of the measuring cup close to the motor, and two first permanent magnets which are parallel up and down and have opposite magnetic pole directions are installed on the magnet mounting plate; a guide plate extending toward the top of the liquid collection bin is fixedly connected to the middle part of the top end of the longitudinal partition, and a main baffle extending vertically upward is arranged on the end of the guide plate close to the motor, and two second permanent magnets which are parallel up and down and have opposite magnetic pole directions are installed on the main baffle; when the opening of the measuring cup faces upward, the magnetic pole directions of the two first permanent magnets are respectively the same as the magnetic pole directions of the two second permanent magnets.

2. The magnetic flowmeter according to claim 1, characterized in that: The measuring cup rack includes an L-shaped rotating shaft and a U-shaped plate. A ball bearing is installed at each end of the rotating arm. The first end of the rotating shaft is installed in the inner ring of the ball bearing. The second end of the rotating shaft is fixedly connected to the top center of the U-shaped plate. Two symmetrical hinge columns are arranged on the outer side of the measuring cup. The two hinge columns are respectively hinged to the hinge holes opened on the two side walls of the U-shaped plate.

3. The magnetic flowmeter according to claim 2, characterized in that: The magnet mounting plate is mounted on one of the hinged columns.

4. The magnetic flowmeter according to claim 1, characterized in that: The end of the guide plate fixed to the longitudinal partition plate is lower than the end of the guide plate close to the motor.

5. The magnetic flowmeter according to claim 1, characterized in that: The two sides of the guide plate are respectively fixed with a side baffle plate for preventing liquid from flowing into the liquid collection bin from the two sides of the guide plate.

6. The magnetic flowmeter according to claim 1, characterized in that: A "ㄣ"-shaped frame is installed between the guide plate, the main baffle and the longitudinal partition.

7. The magnetic flowmeter according to claim 1, characterized in that: The bottom of the liquid collection bin is in the shape of a semicircular ring, and the central axis of the ring corresponding to the bottom of the liquid collection bin is coaxial with the motor shaft of the motor.

8. The magnetic flowmeter according to claim 1, characterized in that: The bottom of the liquid outlet bin is in a semicircular shape, one end of the liquid outlet bin is provided with a liquid outlet pipe connected to the liquid outlet bin, and the central axis of the ring corresponding to the bottom of the liquid outlet bin is coaxial with the central axis of the liquid outlet pipe.

9. The magnetic flowmeter according to claim 1, characterized in that: The motor is equipped with an encoder for monitoring the number of revolutions of the motor.

10. The magnetic flowmeter according to claim 1, characterized in that: It also includes a motor base, and the motor is installed on the top end of the motor base.

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