Early warning mechanism of liquid level meter

Abstract

The invention relates to the technical field of liquid level meter alarming, in particular to an early warning mechanism of a liquid level meter, which comprises a liquid level pipe, a magnetic induction sensor and a collecting frame, a standard plate is arranged on the outer wall of the liquid level pipe, the outer wall of the liquid level pipe is fixedly connected with a sound alarm, the top of the magnetic induction sensor is fixedly connected with an alarm, and the sound alarm is fixedly connected with the collecting frame. And permanent magnet steel is slidably connected to the inner wall of the liquid level pipe, filter holes are formed in the inner wall of the collecting frame, and a scraping plate is fixedly connected to the top of the collecting frame. An electric push rod can drive a guide block to move upwards by receiving a signal of a magnetic induction sensor, then the two ends of two limiting blocks can extend to the exterior of a scraper through a channel, the inner wall of the liquid level pipe is tightly extruded, then the scraper is fixed into the liquid level pipe through the good tension effect, permanent magnet steel cannot move, and therefore the liquid level pipe is prevented from being damaged. Furthermore, no space exists in the liquid level pipe, and then liquid enters the liquid level pipe, so that the pressure in the liquid level pipe does not continue to rise.

Description

Technical Field

[0001] The invention discloses an early warning mechanism for a liquid level meter, belonging to the field of liquid level meter alarms. Background Art

[0002] A liquid level gauge is an instrument used to detect and display the liquid level of a medium in a container. It uses a magnetic float to move up and down with the change of the liquid level, driving the magnetic color block to flip, thereby intuitively indicating the liquid level height. The magnetic flap level gauge is suitable for industrial fields such as chemical and petroleum. It has the advantages of simple structure, intuitiveness, reliability, and durability. The early warning mechanism of the liquid level gauge is a device or mechanism used to warn when an abnormality occurs in the liquid level gauge. Its main function is to alarm the liquid level gauge through a specific mechanism when the pressure in the liquid level gauge is too high, thereby ensuring the normal operation and safe operation of the liquid level gauge.

[0003] However, the warning mechanisms of most existing liquid level meters on the market can only alert the staff through an alarm when the liquid height exceeds the standard. The staff can shut off the liquid feed to prevent the pressure of the liquid level meter from increasing. The liquid level meter cannot automatically stop the pressure increase when it is under high pressure. Furthermore, when the staff fails to notice the alarm of the alarm for a long time, the excessive water pressure will cause damage to the liquid level meter, greatly reducing the service life of the liquid level meter. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide an early warning mechanism for a liquid level meter to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an early warning mechanism of a liquid level gauge, comprising a liquid level tube, a magnetic induction sensor and a collection frame, the outer wall of the liquid level tube is provided with a mark plate, the outer wall of the liquid level tube is fixedly connected to a sound alarm, the top of the magnetic induction sensor is fixedly connected to an alarm, the inner wall of the liquid level tube is slidably connected to a permanent magnet steel, the inner wall of the collection frame is provided with filter holes, and the top of the collection frame is fixedly connected to a scraper.

[0006] The inner wall of the scraper is an arc-shaped structure, and a fixed column is fixedly connected to the inner wall of the collecting frame. A driving component is provided on the inner bottom wall of the fixed column. A limiting component is provided on the inner wall of the fixed column. The magnetic induction sensor is adjusted to the scale position of the maximum pressure that the liquid level tube can withstand. When the liquid inside the liquid level tube exceeds the required capacity position, the sound alarm alarms. When the staff does not stop the liquid feeding in time and the liquid continues to feed, the permanent magnet steel will continue to rise. The permanent magnet steel rises to the position of the magnetic induction sensor, that is, the position where the liquid level tube can withstand the maximum pressure. The magnetic induction sensor will sense the magnetic field of the permanent magnet steel, and then send a signal to the alarm and the driving component. The alarm will alarm to serve as a warning again. The driving component will control the limiting component to limit the permanent magnet steel, so that the permanent magnet steel cannot move, and then there is no space inside the liquid level tube for the liquid to enter, so that the pressure inside the liquid level tube will not continue to rise.

[0007] Specifically, an adjustment plate is fixedly connected to one side of the magnetic induction sensor, and the adjustment plate is a "circular" structure. The adjustment plate is slidably connected to the liquid level tube. A slot is provided on the inner wall of the adjustment plate, and a spring bead piece is provided on the outer wall of the liquid level tube. The spring bead piece is movably connected to the slot. There are multiple spring bead pieces, and the multiple spring bead pieces are arranged in a vertical style. The spring bead pieces have two vertical rows and the number of slots is two, so that the spring bead pieces of the two chips will be movably connected to the corresponding slots, so that the magnetic induction sensor and the alarm are fixed. Multiple spring bead pieces are vertically arranged on the outer wall of the liquid level tube, so that the height of the adjustment plate can be adjusted up and down, and then the position of the magnetic induction sensor can be adjusted.

[0008] Specifically, a bolt tube is fixedly connected to the top of the permanent magnetic steel, a threaded block is fixedly connected to the bottom of the collecting frame, the threaded block is threadedly sleeved with the bolt tube, and a mounting end cover is provided at the bottom of the liquid level tube. The number of the mounting end covers is two, and the two mounting end covers are detachably mounted on the top and bottom of the liquid level tube. The permanent magnetic steel can be contacted by removing the top mounting end cover, and then the collecting frame can be rotated to disengage the threaded block from the bolt tube, and then the collecting frame can be cleaned.

[0009] Specifically, the driving component includes an electric push rod, the bottom of which is fixedly connected to the inner bottom wall of the fixed column, and the top of the electric push rod is fixedly connected to a guide block, which is a "cone" shaped structure. After the magnetic induction sensor senses the magnetic field of the permanent magnet steel, it sends a signal to the electric push rod, and the electric push rod drives the guide block to move upward.

[0010] Specifically, the limiting component includes a spring, one end of the spring is fixedly connected to the inner wall of the fixed column, the inner wall of the fixed column is fixedly connected with a spring, one end of the spring is fixedly connected to a guide plate, the bottom of the guide plate is fixedly connected to a limiting block, the number of limiting components is two, when the electric push rod drives the guide block to move upward, the space between the two limiting blocks becomes smaller and smaller, and then the limiting block will move to the outside of the fixed column through the through groove, and then the two ends of the two limiting blocks will extend to the outside of the scraper through the channel, so that the inner wall of the liquid level tube is tightly squeezed, and then through the effect of good tension, the scraper is fixed inside the liquid level tube, and then the permanent magnet steel cannot move.

[0011] Specifically, a through groove is provided on the inner side wall of the fixed column, and the limit block is slidably connected to the through groove. A channel is provided on the inner wall of the scraper, and the limit block is slidably connected to the channel. There are two through grooves and two channels. When the two limit blocks are moved to the outside of the scraper, the scraper is fixed inside the liquid level tube through the effect of tension, so that the permanent magnet steel cannot move, and there is no space inside the liquid level tube for liquid to enter, so that the pressure inside the liquid level tube will not continue to rise.

[0012] Beneficial effects of the present invention: 1. The electric push rod will drive the guide block to move upward after receiving the signal from the magnetic induction sensor, and then the two ends of the two limit blocks will extend to the outside of the scraper through the channel, so that the inner wall of the liquid level tube is tightly squeezed, and then the scraper is fixed inside the liquid level tube through the effect of good tension, so that the permanent magnet steel cannot move, and there is no space inside the liquid level tube for liquid to enter, so that the pressure inside the liquid level tube will not continue to rise, and then when the staff does not notice the alarm of the sound alarm for a long time, the device can automatically protect the liquid level tube, thereby increasing the service life of the device.

[0013] 2. When the permanent magnet moves upward, it will drive the scraper to scrape the inner wall of the liquid level tube. Scale or other impurities will flow into the inside of the collection frame, and excess water will be filtered out through the filter holes, so that the inner wall of the liquid level tube remains clean. There will be no situation where the movement of the permanent magnet is restricted due to a large number of impurities, thereby improving the sophistication of the device.

[0014] 3. When the density of the liquid is different, the maximum pressure on the liquid level tube will also be at different scales, and the two vertical rows of spring beads will be movably connected with the corresponding card slots to fix the magnetic induction sensor and the alarm. A plurality of spring beads are vertically arranged on the outer wall of the liquid level tube, so that the height of the adjustment plate can be adjusted up and down, and then the position of the magnetic induction sensor can be adjusted, thereby meeting the use requirements of the device and improving the applicability of the device.

[0015] 4. There are two mounting end covers, which are detachably mounted on the top and bottom of the liquid level tube. By removing the top mounting end cover, the permanent magnet steel can be contacted, and then the collection frame can be rotated to disengage the threaded block from the bolt tube, and then the collection frame can be cleaned, thereby further meeting the use requirements of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of an early warning mechanism of a liquid level meter of the present invention; Figure 2 It is a structural schematic diagram of the adjustment plate in the present invention; Figure 3 It is the internal schematic diagram of the liquid level tube in the present invention; Figure 4 It is a schematic diagram of the structure of the collection frame in the present invention; Figure 5 for Figure 3 A magnified view of the structure at center A; Figure 6 It is a schematic diagram of the internal structure of the fixed column in the present invention.

[0017] In the figure: 1. Liquid level tube; 2. Marking plate; 3. Spring bead piece; 4. Adjustment plate; 5. Card slot; 6. Magnetic induction sensor; 7. Alarm; 8. Install end cover; 9. Permanent magnet steel; 10. Collecting frame; 11. Filter hole; 12. Scraper; 13. Channel; 14. Fixed column; 15. Electric push rod; 16. Guide block; 17. Spring; 18. Guide plate; 19. Limit block; 20. Through slot; 21. Bolt tube; 22. Threaded block; 23. Sound alarm. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] See also Figures 1 to 6The present invention provides a technical solution: an early warning mechanism of a liquid level meter, comprising a liquid level tube 1, a magnetic induction sensor 6 and a collection frame 10. The outer wall of the liquid level tube 1 is provided with a mark plate 2, and the outer wall of the liquid level tube 1 is fixedly connected with a sound alarm 23. The liquid capacity inside the container can be observed through the mark plate 2. When the capacity exceeds the set capacity, the sound alarm 23 will alarm, thereby prompting the staff to close the container. An alarm 7 is fixedly connected to the top of the magnetic induction sensor 6. The magnetic induction sensor 6 is an existing device with a model of "PNI13104". After sensing the magnetic force, the magnetic induction sensor 6 will send a signal. After receiving the signal sent by the magnetic induction sensor 6, the alarm 7 will alarm. The inner wall of the liquid level tube 1 is slidably connected with a permanent magnet 9. When liquid enters the liquid level tube 1, the permanent magnet 9 will float, and then the capacity inside the container can be indicated by the mark plate 2.

[0020] The inner wall of the collecting frame 10 is provided with a filter hole 11, and the top of the collecting frame 10 is fixedly connected with a scraper 12, and the inner wall of the scraper 12 is an arc-shaped structure. When the permanent magnet steel 9 moves upward, it will drive the scraper 12 to scrape the inner wall of the liquid level tube 1, so that the scale or other impurities on the inner wall of the liquid level tube 1 can be scraped off, and the scale or other impurities will flow into the interior of the collecting frame 10 along the inner wall of the scraper 12, and the excess water will be filtered out through the filter hole 11, and the scale or other impurities will be isolated in the interior of the collecting frame 10. The inner wall of the collecting frame 10 is fixedly connected with a fixed column 14, and the inner bottom wall of the fixed column 14 is provided with a driving component, and the inner wall of the fixed column 14 is provided with a limiting component, so that the magnetic induction sensor 6 is adjusted to the maximum of the liquid level tube 1 The scale position of the pressure-bearing tube 1, when the liquid inside the liquid level tube 1 exceeds the required capacity position, the sound alarm 23 alarms, when the staff does not stop the liquid feeding in time, and the liquid continues to feed, the permanent magnet steel 9 will continue to rise, and the permanent magnet steel 9 will rise to the position of the magnetic induction sensor 6, that is, the position where the liquid level tube 1 can withstand the maximum pressure, the magnetic induction sensor 6 will sense the magnetic field of the permanent magnet steel 9, and then send a signal to the alarm 7 and the drive component, the alarm 7 will alarm, which serves as a warning again, and the drive component will control the limit component to limit the permanent magnet steel 9, so that the permanent magnet steel 9 cannot move, and then there is no space inside the liquid level tube 1 for the liquid to enter again, so that the pressure inside the liquid level tube 1 will not continue to rise.

[0021] An adjustment plate 4 is fixedly connected to one side of the magnetic induction sensor 6. The adjustment plate 4 is a "circular" structure. The adjustment plate 4 is slidably connected to the liquid level tube 1. A slot 5 is provided on the inner wall of the adjustment plate 4. A spring bead piece 3 is provided on the outer wall of the liquid level tube 1. The spring bead piece 3 is movably connected to the slot 5. There are multiple spring bead pieces 3, and multiple spring bead pieces 3 are arranged in a vertical style. There are two vertical rows of spring bead pieces 3, and there are two slots 5. Then, the spring bead pieces 3 in the two vertical rows will be movably connected to the corresponding slots 5, so that the magnetic induction sensor 6 and the alarm 7 are fixed. Multiple spring bead pieces 3 are vertically arranged on the outer wall of the liquid level tube 1, so that the height of the adjustment plate 4 can be adjusted up and down, and then the position of the magnetic induction sensor 6 can be adjusted.

[0022] A bolt tube 21 is fixedly connected to the top of the permanent magnet steel 9, and a threaded block 22 is fixedly connected to the bottom of the collection frame 10. The threaded block 22 is threadedly sleeved with the bolt tube 21. A mounting end cover 8 is provided at the bottom of the liquid level tube 1. There are two mounting end covers 8. The two mounting end covers 8 can be detachably mounted on the top and bottom of the liquid level tube 1. When the top mounting end cover 8 is removed, the permanent magnet steel 9 can be contacted, and then the collection frame 10 can be rotated to disengage the threaded block 22 from the bolt tube 21, and then the collection frame 10 can be cleaned.

[0023] The driving component includes an electric push rod 15, the bottom of which is fixedly connected to the inner bottom wall of the fixed column 14, and the top of the electric push rod 15 is fixedly connected to a guide block 16, which is a "cone" shaped structure. After the magnetic induction sensor 6 senses the magnetic field of the permanent magnet steel 9, it sends a signal to the electric push rod 15, and the electric push rod 15 drives the guide block 16 to move upward.

[0024] The limiting component includes a spring 17, one end of which is fixedly connected to the inner wall of the fixed column 14, the inner wall of the fixed column 14 is fixedly connected with the spring 17, one end of the spring 17 is fixedly connected to a guide plate 18, and the bottom of the guide plate 18 is fixedly connected to a limiting block 19. There are two limiting components. When the electric push rod 15 drives the guide block 16 to move upward, the space between the two limiting blocks 19 becomes smaller and smaller, and then the limiting block 19 will move to the outside of the fixed column 14 through the through groove 20, and then the two ends of the two limiting blocks 19 will extend to the outside of the scraper 12 through the channel 13, so that the inner wall of the liquid level tube 1 is tightly squeezed, and then through the effect of good tension, the scraper 12 is fixed inside the liquid level tube 1, and then the permanent magnet 9 cannot move.

[0025] A through groove 20 is provided on the inner wall of the fixed column 14, and a limit block 19 is slidably connected with the through groove 20. A channel 13 is provided on the inner wall of the scraper 12, and the limit block 19 is slidably connected with the channel 13. There are two through grooves 20 and two channels 13. When the two limit blocks 19 move to the outside of the scraper 12, the scraper 12 is fixed inside the liquid level tube 1 through the effect of good tension, so that the permanent magnet steel 9 cannot move, and there is no space inside the liquid level tube 1 for liquid to enter, so that the pressure inside the liquid level tube 1 will not continue to rise.

[0026] Working principle: Step 1: Adjust the alarm system of the sound alarm 23 according to the required capacity of the container. When the capacity exceeds the set capacity, the sound alarm 23 will alarm, thereby prompting the staff to close the container, and adjust the position of the magnetic induction sensor 6 according to the maximum pressure that the liquid level tube 1 can withstand; Step 2: After the liquid level tube 1 enters the liquid, the permanent magnet 9 will move upward. When moving upward, the permanent magnet 9 will drive the scraper 12 to scrape the inner wall of the liquid level tube 1, and then the scale or other impurities on the inner wall of the liquid level tube 1 can be scraped off. The scale or other impurities will flow into the inside of the collection frame 10 along the inner wall of the scraper 12, and the excess water will be filtered out through the filter hole 11. The scale or other impurities are isolated in the inside of the collection frame 10, so that the inner wall of the liquid level tube 1 remains clean, and there will be no situation where the movement of the permanent magnet 9 is restricted due to the attachment of a large number of impurities; Step 3: When the sound alarm 23 sounds an alarm, the staff does not stop the liquid feeding in time, and the liquid continues to be fed, the permanent magnet 9 will continue to rise, and the permanent magnet 9 will rise to the position of the magnetic induction sensor 6, that is, the position where the liquid level tube 1 can withstand the maximum pressure. The magnetic induction sensor 6 will sense the magnetic field of the permanent magnet 9, and then send a signal to the alarm 7 and the electric push rod 15, and the alarm 7 will sound an alarm, which serves as a warning again; Step 4: The electric push rod 15 receives the signal from the magnetic induction sensor 6 and drives the guide block 16 to move upward. Since the outer wall of the guide block 16 is an inclined surface, the guide block 16 will squeeze one end of the limit block 19, and the space between the two limit blocks 19 will become smaller and smaller, and the limit block 19 will move to the outside of the fixed column 14 through the through groove 20, and then the two ends of the two limit blocks 19 will extend to the outside of the scraper 12 through the channel 13, so that the inner wall of the liquid level tube 1 is tightly squeezed, and then through the effect of good tension, the scraper 12 is fixed inside the liquid level tube 1, and then the permanent magnet 9 cannot move, and then there is no space inside the liquid level tube 1 for liquid to enter, so that the pressure inside the liquid level tube 1 will not continue to rise.

[0027] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An early warning mechanism for a liquid level meter, comprising a liquid level tube (1), a magnetic induction sensor (6) and a collection frame (10), characterized in that: The outer wall of the liquid level tube (1) is provided with a mark plate (2), the outer wall of the liquid level tube (1) is fixedly connected to a sound alarm (23), the top of the magnetic induction sensor (6) is fixedly connected to an alarm (7), and the inner wall of the liquid level tube (1) is slidably connected to a permanent magnet steel (9); The inner wall of the collection frame (10) is provided with filter holes (11); a scraper (12) is fixedly connected to the top of the collection frame (10); the inner wall of the scraper (12) is an arc-shaped structure; a fixing column (14) is fixedly connected to the inner wall of the collection frame (10); a driving component is provided on the inner bottom wall of the fixing column (14); and a limiting component is provided on the inner wall of the fixing column (14).

2. The early warning mechanism of a liquid level meter according to claim 1, characterized in that: An adjustment plate (4) is fixedly connected to one side of the magnetic induction sensor (6); the adjustment plate (4) is a "ring" shaped structure; the adjustment plate (4) is slidably sleeved with the liquid level tube (1); a clamping groove (5) is provided on the inner wall of the adjustment plate (4); a spring clamping bead piece (3) is provided on the outer wall of the liquid level tube (1); and the spring clamping bead piece (3) is movably clamped with the clamping groove (5).

3. The early warning mechanism of a liquid level gauge according to claim 1, characterized in that: The top of the permanent magnetic steel (9) is fixedly connected to a bolt tube (21), the bottom of the collection frame (10) is fixedly connected to a threaded block (22), the threaded block (22) is threadedly sleeved with the bolt tube (21), and the bottom of the liquid level tube (1) is provided with a mounting end cover (8).

4. The early warning mechanism of a liquid level gauge according to claim 1, characterized in that: The driving component comprises an electric push rod (15), the bottom of the electric push rod (15) being fixedly connected to the inner bottom wall of the fixed column (14), and the top of the electric push rod (15) being fixedly connected to a guide block (16), wherein the guide block (16) is a "truncated cone" shaped structure.

5. The early warning mechanism of a liquid level gauge according to claim 1, characterized in that: The limiting component comprises a spring (17), one end of the spring (17) being fixedly connected to the inner wall of the fixing column (14), the inner wall of the fixing column (14) being fixedly connected to the spring (17), one end of the spring (17) being fixedly connected to a guide plate (18), and the bottom of the guide plate (18) being fixedly connected to a limiting block (19).

6. The early warning mechanism of a liquid level gauge according to claim 5, characterized in that: The inner wall of the fixed column (14) is provided with a through groove (20), the limit block (19) is slidably sleeved with the through groove (20), and the inner wall of the scraper (12) is provided with a channel (13), the limit block (19) is slidably sleeved with the channel (13).

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