Electromagnetic flowmeter with alarm function

Abstract

The utility model relates to the technical field of electromagnetic flow meters, and discloses an electromagnetic flow meter with an alarm function, which comprises an electromagnetic flow meter main body, an alarm is arranged on the surface of the electromagnetic flow meter main body, an input pipe is arranged at the input end of the electromagnetic flow meter main body, the bottom of the input pipe is connected with a communicating pipe, and the communicating pipe is connected with the electromagnetic flow meter main body. A buffer barrel is fixedly connected to one end of the communicating pipe, a piston is slidably connected to the interior of the buffer barrel, and two sealing rings are arranged on the surface of the piston; the buffer barrel and the electromagnetic flowmeter body can be communicated through the communicating pipe, the piston can be sealed through the sealing ring, the piston and the cover plate can be supported through the energy absorption assembly, when fluid impact is generated, impact force can be transmitted to the piston, the energy absorption assembly can absorb the impact force, the piston can generate displacement, the energy absorption effect is improved, and the service life of the electromagnetic flowmeter is prolonged. And the internal space of the electromagnetic flowmeter body is not occupied, and the piston can press the touch switch when the impact force is large.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic flowmeters, in particular to an electromagnetic flowmeter with an alarm function. Background Technique

[0002] An electromagnetic flowmeter is an instrument that measures the flow rate of a conductive fluid based on the electromotive force induced when the conductive fluid passes through an externally applied magnetic field. The measurement of an electromagnetic flowmeter is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. There are no obstructive flow components in the measuring tube, no pressure loss, the requirement for a straight pipe section is relatively low, and it has a unique adaptability to slurry measurement. By reasonably selecting the sensor lining and electrode materials, it has good corrosion resistance and wear resistance. The converter can be integrated with the sensor or separated.

[0003] The "electromagnetic flowmeter with an alarm function" disclosed in its application number "202022909486.4" includes "an electromagnetic flowmeter body; a first mounting frame fixedly installed on the outer wall of one side of the electromagnetic flowmeter body; two first through ports respectively opened on the outer walls of both sides of the first mounting frame, and any one of the first through ports is communicated with the electromagnetic flowmeter body; two connecting rods fixedly installed on the inner wall of one side of the first mounting frame; two cavities respectively opened in the two connecting rods; two connecting plates slidably installed on the inner walls of the two cavities; two connecting rods respectively fixedly installed on the outer walls of one side of the two connecting plates, and one ends of the two connecting rods both extend to one side of the two connecting rods; a buffer plate arranged in the first mounting frame, and the outer wall of one side of the buffer plate is fixedly connected with one ends of the two connecting rods away from the cavities." In the utility model, the impact force of water flow can be reduced through the buffer plate, two connecting rods, two cavities, two connecting plates, two connecting rods, and two first springs, so that the water flow can enter the electromagnetic flowmeter body smoothly, enabling the electromagnetic flowmeter body to measure better. At the same time, it can avoid damage to the components of the electromagnetic flowmeter body caused by the impact of water flow, thereby increasing the service life of the electromagnetic flowmeter body. The pressure inside the electromagnetic flowmeter body can be measured and an alarm can be given through the connecting frame, floating ball, contact sensor, and alarm light, thus ensuring the normal operation of the electromagnetic flowmeter body.

[0004] However, the above method still has the following defects: In order to ensure the normal flow of water, a gap needs to be set between the buffer plate and the first mounting frame. The water flow can flow through the gap between the buffer plate and the first mounting frame, and the energy absorption effect is poor. Under the action of water pressure and buoyancy, the floating ball is always in a floating state and fits with the contact sensor, which will cause the alarm light to be always on and the accuracy is low. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the utility model provides an electromagnetic flowmeter with an alarm function, which has the advantages of good energy absorption effect and high accuracy, and solves the problems raised in the above background technology.

[0006] The utility model provides the following technical solutions: an electromagnetic flowmeter with an alarm function, including an electromagnetic flowmeter main body, an alarm is arranged on the surface of the electromagnetic flowmeter main body, an input pipe is arranged at the input end of the electromagnetic flowmeter main body, a communicating pipe is connected to the bottom of the input pipe, one end of the communicating pipe is fixedly connected with a buffer barrel, a piston is slidably connected inside the buffer barrel, two sealing rings are arranged on the surface of the piston, a cover plate is arranged on one side of the buffer barrel, an energy absorption component for limiting the piston is slidably connected to the cover plate, a support component is arranged in the middle of the cover plate, and a touch switch connected to the alarm is arranged at one end of the support component.

[0007] As a preferred technical solution of the utility model, an installation seat is fixedly arranged on one side of the alarm, one side of the installation seat is fixedly connected with the surface of the electromagnetic flowmeter main body, an output pipe is fixedly arranged at the output end of the electromagnetic flowmeter main body, and flanges are fixedly arranged at the input end of the input pipe and the output end of the output pipe.

[0008] As a preferred technical solution of the utility model, support plates are welded on both sides of the top end of the buffer barrel, the top ends of the support plates are welded with the bottom end of the electromagnetic flowmeter main body, a positioning ring is welded on one side of the buffer barrel, one side of the cover plate is fixedly connected with one side of the positioning ring through bolts, bolt holes are formed on the surfaces of the positioning ring and the cover plate, and the bolts are inserted into the bolt holes.

[0009] As a preferred technical solution of the utility model, the energy absorption component includes a circular plate, a plurality of through holes are formed on the surface of the circular plate, half-threaded screws are inserted into the through holes, nuts are threadedly connected to the threaded parts of the half-threaded screws, a smooth rod is fixedly arranged at one end of the half-threaded screw, the diameter of the smooth rod is larger than the diameter of the through hole, one end of the smooth rod is fixedly connected with the piston, and an energy absorption spring is sleeved on the surface of the smooth rod, and the energy absorption spring is located between the piston and the cover plate.

[0010] As a preferred technical solution of the utility model, a plurality of rod sleeves I are fixedly arranged on the surface of the cover plate, and the smooth rod is slidably connected to the rod sleeve I.

[0011] As a preferred technical solution of the utility model, two clamping grooves are formed on the surface of the piston, and the sealing rings are clamped and connected to the inside of the clamping grooves.

[0012] As a preferred technical solution of the present utility model, the support assembly includes a support rod and a compression spring. A compression spring is sleeved on the surface of the support rod. One end of the support rod is fixedly provided with a mounting plate. The compression spring is located between the support rod and the mounting plate. The touch switch is fixedly connected to one side of the mounting plate. The other end of the support rod is fixedly provided with a retaining piece.

[0013] As a preferred technical solution of the present utility model, a second rod sleeve is fixedly provided in the middle of the cover plate. The support rod is slidably connected to the second rod sleeve. Vent holes are provided in the top of the cover plate.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. The buffer barrel and the electromagnetic flowmeter main body can be connected through the communication pipe. The sealing ring can seal the piston. The energy absorption assembly can support between the piston and the cover plate. When a fluid impact occurs, the impact force can be transmitted to the piston. The energy absorption assembly can absorb the impact force, enabling the piston to generate displacement, improving the energy absorption effect, and not occupying the internal space of the electromagnetic flowmeter main body. When the impact force is large, the piston can press the touch switch, controlling the alarm to send an alarm to the staff, improving the accuracy.

[0016] 2. The support assembly can support the touch switch. When the piston presses on the touch switch, the pressure can be transmitted to the support assembly. The support assembly can contract under pressure, enabling the touch switch to have a horizontal displacement and ensuring the fit between the touch switch and the piston, avoiding the phenomenon of excessive pressure applied by the piston to the touch switch, and the touch switch is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0018] Figure 2 is the second structural schematic diagram of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the buffer barrel of the present utility model;

[0020] Figure 4 is the exploded structural schematic diagram of the buffer barrel of the present utility model;

[0021] Figure 5 is the structural schematic diagram of the cover plate of the present utility model;

[0022] Figure 6 is the exploded structural schematic diagram of the support assembly of the present utility model.

[0023] In the figure: 1. Electromagnetic flowmeter main body; 2. Input pipe; 3. Output pipe; 4. Flange; 5. Mounting seat; 6. Alarm; 7. Buffer barrel; 8. Support plate; 9. Connecting pipe; 10. Positioning ring; 11. Cover plate; 12. Bolt; 13. Piston; 14. Card slot; 15. Sealing ring; 16. Energy absorption component; 1601. Circular plate; 1602. Optical rod; 1603. Energy absorption spring; 1604. Half-threaded screw; 1605. Nut; 1606. Through hole; 17. Tact switch; 18. Support component; 1801. Support rod; 1802. Shrinkage spring; 1803. Mounting disc; 1804. Flap; 19. Sleeve one; 20. Sleeve two; 21. Vent hole; 22. Bolt hole. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 6 , an electromagnetic flowmeter with an alarm function, including an electromagnetic flowmeter main body 1, an alarm 6 is provided on the surface of the electromagnetic flowmeter main body 1, an input pipe 2 is provided at the input end of the electromagnetic flowmeter main body 1, a connecting pipe 9 is connected to the bottom of the input pipe 2, one end of the connecting pipe 9 is fixedly connected to a buffer barrel 7, a piston 13 is slidably connected inside the buffer barrel 7, two sealing rings 15 are provided on the surface of the piston 13, and the piston 13 can be sealed through the sealing rings 15 to prevent leakage of the piston 13. A cover plate 11 is provided on one side of the buffer barrel 7, and an energy absorption component 16 for limiting the piston 13 is slidably connected to the cover plate 11. The energy absorption component 16 can support between the piston 13 and the cover plate 11. When a fluid impact occurs, the energy absorption component 16 can absorb the impact force, enabling the piston 13 to generate displacement. A support component 18 is provided in the middle of the cover plate 11, and a tact switch 17 connected to the alarm 6 is provided at one end of the support component 18. The support component 18 can support the tact switch 17;

[0026] In this embodiment, preferably, the energy absorption component 16 includes a circular plate 1601. A plurality of through holes 1606 are formed in the surface of the circular plate 1601. A half-threaded screw 1604 is inserted and connected through the through holes 1606. A nut 1605 is threadedly connected to the threaded portion of the half-threaded screw 1604. A smooth rod 1602 is fixedly provided at one end of the half-threaded screw 1604. The diameter of the smooth rod 1602 is larger than the diameter of the through hole 1606. One end of the smooth rod 1602 is fixedly connected to the piston 13. An energy absorption spring 1603 is sleeved on the surface of the smooth rod 1602. The energy absorption spring 1603 is located between the piston 13 and the cover plate 11. The circular plate 1601 can be fixed by the half-threaded screw 1604, and the circular plate 1601 can be installed and disassembled. The energy absorption spring 1603 can provide support between the piston 13 and the cover plate 11. When the piston 13 is pressed, the energy absorption spring 1603 is compressed to absorb energy. A plurality of sleeve one 19 are fixedly provided on the surface of the cover plate 11. The smooth rod 1602 is slidably connected to the sleeve one 19. The sleeve one 19 can guide the smooth rod 1602, ensure the horizontal movement of the smooth rod 1602, and prevent the smooth rod 1602 from tilting;

[0027] In this embodiment, preferably, the support component 18 includes a support rod 1801 and a contraction spring 1802. The contraction spring 1802 is sleeved on the surface of the support rod 1801. An installation disk 1803 is fixedly provided at one end of the support rod 1801. The contraction spring 1802 is located between the support rod 1801 and the installation disk 1803. The touch switch 17 is fixedly connected to one side of the installation disk 1803. When the piston 13 presses the touch switch 17, the pressure can be transmitted to the installation disk 1803 of the support component 18. The contraction spring 1802 is compressed and can contract, enabling the touch switch 17 to move horizontally and ensuring the fit between the touch switch 17 and the piston 13, avoiding the phenomenon that the piston 13 applies too much pressure to the touch switch 17, and the touch switch 17 is not easily damaged. The support rod 1801 can be limited by the retaining piece 1804 to prevent the support rod 1801 from loosening and falling off. A sleeve two 20 is fixedly provided in the middle of the cover plate 11. The support rod 1801 is slidably connected to the sleeve two 20. The sleeve two 20 can guide the support rod 1801. A ventilation hole 21 is formed in the top of the cover plate 11. The ventilation hole 21 can ensure the circulation of air. When the piston 13 moves, the air inside the buffer barrel 7 can be discharged;

[0028] In this embodiment, preferably, a mounting seat 5 is fixedly provided on one side of the alarm 6, and one side of the mounting seat 5 is fixedly connected to the surface of the electromagnetic flowmeter main body 1. The alarm 6 can be supported by the mounting seat 5. The output end of the electromagnetic flowmeter main body 1 is fixedly provided with an output pipe 3. Flanges 4 are fixedly provided at the input end of the input pipe 2 and the output end of the output pipe 3. The input pipe 2 and the output pipe 3 can be connected to the fluid pipeline through the flanges 4. Support plates 8 are welded on both sides of the top end of the buffer barrel 7, and the top end of the support plate 8 is welded to the bottom end of the electromagnetic flowmeter main body 1. The support plate 8 can provide stable support between the electromagnetic flowmeter main body 1 and the buffer barrel 7. A positioning ring 10 is welded on one side of the buffer barrel 7, and one side of the cover plate 11 is fixedly connected to one side of the positioning ring 10 through a bolt 12. Bolt holes 22 are provided on the surfaces of the positioning ring 10 and the cover plate 11, and the bolt 12 is inserted through the bolt holes 22. The cover plate 11 can be installed and disassembled through the bolt 12;

[0029] In this embodiment, preferably, two clamping grooves 14 are provided on the surface of the piston 13, and the sealing ring 15 is clamped and connected to the inside of the clamping groove 14. The sealing ring 15 can be limited by the clamping groove 14 to prevent the sealing ring 15 from falling off.

[0030] During use, first, the input pipe 2 and the output pipe 3 are connected to the fluid pipeline through the flanges 4. When the fluid passes through the electromagnetic flowmeter main body 1, the electromagnetic flowmeter main body 1 can measure the fluid flow. The connecting pipe 9 can connect the buffer barrel 7 and the electromagnetic flowmeter main body 1. The sealing ring 15 can seal the piston 13 to prevent the piston 13 from leaking. When fluid impact occurs inside the electromagnetic flowmeter main body 1, the impact force can be transmitted to the piston 13. The piston 13 transmits the impact force to the energy absorption spring 1603 of the energy absorption assembly 16. The energy absorption spring 1603 can absorb the impact force when compressed, and the optical rod 1602 can guide the piston 13 to maintain its position accuracy;

[0031] When the impact force is large, the piston 13 moves to press against one side of the touch switch 17, and the touch switch 17 can turn on the alarm 6 to issue a warning to the staff. The compression spring 1802 of the support assembly 18 can support the touch switch 17. When the piston 13 presses against the touch switch 17, the pressure can be transmitted to the compression spring 1802. The compression spring 1802 can contract when compressed, enabling the touch switch 17 to move horizontally and ensuring the fit between the touch switch 17 and the piston 13, avoiding the phenomenon that the piston 13 applies too much pressure to the touch switch 17 and making the touch switch 17 not easily damaged. After the impact force disappears, the energy absorption spring 1603 can release energy to push the piston 13 to reset, and the piston 13 can leave the touch switch 17 to turn off the alarm 6, avoiding the continuous operation of the alarm 6. The staff first disassembles the cover plate 11 and then loosens the nut 1605 to be able to disassemble the piston 13 and the sealing ring 15 for maintenance and replacement.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic flowmeter with an alarm function, comprising an electromagnetic flowmeter main body (1), characterized in that: An alarm (6) is provided on the surface of the electromagnetic flowmeter main body (1). An input pipe (2) is provided at the input end of the electromagnetic flowmeter main body (1). A communicating pipe (9) is connected to the bottom of the input pipe (2). One end of the communicating pipe (9) is fixedly connected to a buffer barrel (7). A piston (13) is slidably connected inside the buffer barrel (7). Two sealing rings (15) are provided on the surface of the piston (13). A cover plate (11) is provided on one side of the buffer barrel (7). An energy-absorbing component (16) for limiting the piston (13) is slidably connected to the cover plate (11). A support component (18) is provided in the middle of the cover plate (11). A touch switch (17) connected to the alarm (6) is provided at one end of the support component (18).

2. The electromagnetic flowmeter with an alarm function according to claim 1, characterized in that: An installation seat (5) is fixedly provided on one side of the alarm (6). One side of the installation seat (5) is fixedly connected to the surface of the electromagnetic flowmeter main body (1). An output pipe (3) is fixedly provided at the output end of the electromagnetic flowmeter main body (1). Flanges (4) are fixedly provided at the input end of the input pipe (2) and the output end of the output pipe (3).

3. The electromagnetic flowmeter with an alarm function according to claim 1, characterized in that: Support plates (8) are welded to both sides of the top of the buffer barrel (7). The top of the support plates (8) is welded to the bottom of the electromagnetic flowmeter main body (1). A positioning ring (10) is welded to one side of the buffer barrel (7). One side of the cover plate (11) is fixedly connected to one side of the positioning ring (10) by bolts (12). Bolt holes (22) are provided on the surfaces of the positioning ring (10) and the cover plate (11). The bolts (12) are inserted into the bolt holes (22).

4. The electromagnetic flowmeter with an alarm function according to claim 1, characterized in that: The energy-absorbing component (16) includes a circular plate (1601). A number of through holes (1606) are provided on the surface of the circular plate (1601). A half-thread screw rod (1604) is inserted through the through holes (1606). A nut (1605) is threadedly connected to the threaded part of the half-thread screw rod (1604). A smooth rod (1602) is fixedly provided at one end of the half-thread screw rod (1604). The diameter of the smooth rod (1602) is larger than the diameter of the through holes (1606). One end of the smooth rod (1602) is fixedly connected to the piston (13). An energy-absorbing spring (1603) is sleeved on the surface of the smooth rod (1602). The energy-absorbing spring (1603) is located between the piston (13) and the cover plate (11).

5. The electromagnetic flowmeter with an alarm function according to claim 4, characterized in that: A number of rod sleeves one (19) are fixedly provided on the surface of the cover plate (11). The smooth rod (1602) is slidably connected to the rod sleeves one (19).

6. The electromagnetic flowmeter with an alarm function according to claim 1, characterized in that: Two clamping grooves (14) are provided on the surface of the piston (13). The sealing rings (15) are snap-fitted into the inside of the clamping grooves (14).

7. The electromagnetic flowmeter with an alarm function according to claim 1, characterized in that: The support component (18) includes a support rod (1801) and a compression spring (1802). A compression spring (1802) is sleeved on the surface of the support rod (1801). One end of the support rod (1801) is fixedly provided with a mounting plate (1803). The compression spring (1802) is located between the support rod (1801) and the mounting plate (1803). The touch switch (17) is fixedly connected to one side of the mounting plate (1803). The other end of the support rod (1801) is fixedly provided with a retaining piece (1804).

8. The electromagnetic flowmeter with an alarm function according to claim 7, characterized in that: A second rod sleeve (20) is fixedly provided in the middle of the cover plate (11). The support rod (1801) is slidably connected to the second rod sleeve (20). Ventilation holes (21) are formed in the top of the cover plate (11).

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